[ { "path": ".gitignore", "content": "# Logs\nlogs\n*.log\n\n# Runtime data\npids\n*.pid\n*.seed\n\n# Directory for instrumented libs generated by jscoverage/JSCover\nlib-cov\n\n# Coverage directory used by tools like istanbul\ncoverage\n\n# Dependency directory\n# Deployed apps should consider commenting this line out:\n# see https://npmjs.org/doc/faq.html#Should-I-check-my-node_modules-folder-into-git\nnode_modules\n\n\n.DS_Store\n\neditor/scripts/urdujs" }, { "path": "CITATION.cff", "content": "cff-version: 1.2.0\nmessage: \"If you use this software, please cite it as below.\"\nauthors:\n - family-names: Memon\n given-names: Asad\ntitle: \"UrduScript\"\nversion: 1.0.0\ndate-released: 2019-08-24\n" }, { "path": "LICENSE.md", "content": "The MIT License (MIT)\n\nCopyright (c) 2017 Asad Memon\n\nPermission is hereby granted, free of charge, to any person obtaining a copy\nof this software and associated documentation files (the \"Software\"), to deal\nin the Software without restriction, including without limitation the rights\nto use, copy, modify, merge, publish, distribute, sublicense, and/or sell\ncopies of the Software, and to permit persons to whom the Software is\nfurnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all\ncopies or substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\nIMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\nFITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\nAUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\nLIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\nOUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\nSOFTWARE." }, { "path": "README.md", "content": "# UrduScript\n\n![](docs/head.png?raw=true)\n\nUrduScript is an [Urdish](http://www.urbandictionary.com/define.php?term=Urdish) dialect of JavaScript. The goal is to make programming more accessible to beginners from South Asia. UrduScript uses informal Urdu analogies to programming concepts, making it easy to get started without remembering keywords.\n\nUrduScript transpiles to JavaScript. All JavaScript frameworks (like jQuery, UnderScore, React, etc) can be seemlessly used.\n\n### Hello World\n\n```js\n// declare variable\nrakho naam = \"Asad\"\n\n// output to console\nlikho(\"Hello, \" + naam)\n```\n\n[**Try it online here**](https://asadmemon.com/urduscript/editor/).\n\n### Installation (Web Editor)\nIf you want to run the web editor offline. Follow these steps:\n\n##### Prerequisites:\nIn order to run UrduScript on your computer, you need to install [Node.js](https://nodejs.org/en/download/) first. \n##### Installing (Windows):\n\n- Download zip or clone the repository\n\n- Inside your project directory, run:\n\n ```sh\n npm install\n npm install -g nws\n npm run windows\n ```\n\n- Open your browser and type\n\n```js\nhttp://localhost:3030\n```\n##### Installing (MacOs, Ubuntu, Unix, etc):\n\n- Download zip or clone the repository\n- Inside your project directory, run:\n```sh\nnpm install\nnpm start\n```\n\n- Open your browser and type\n\n```js\nhttp://localhost:3030\n```\n\n### Contributing\n\nThis is an open project and I am open to all ideas and improvements. See [this page](https://asadmemon.com/urduscript/contribute).\n\n\n\n### Acknowledgments\n\n- Project is only possible due to [Sweet.js](https://github.com/sweet-js/sweet-core).\n- The online editor uses the wonderful [CodeMirror](https://github.com/codemirror/CodeMirror).\n- Special thanks to Ali Alavi, Osman Mian, Eric Bhatti for their help.\n" }, { "path": "bin/urdujs.js", "content": "#!/usr/bin/env node\n\nvar argv = require('yargs')\n .usage('Usage: urdujs [options] file')\n .boolean(\"t\")\n .alias('t', 'transpile')\n .alias('o', 'out-file')\n .alias('d', 'out-dir')\n .describe('o', 'write output to file')\n .describe('d', 'write output to directory')\n .describe('t', 'only output the transpiled js code (only works when no output file defined)')\n .nargs('out-file', 1)\n .nargs('out-dir', 1)\n //.nargs('transpile', 1)\n .demand(1)\n .help('h')\n .alias('h', 'help')\n .argv;\n\nvar path = require('path');\nvar fs = require('fs');\n\n//console.log(__dirname + \"/../src/keywords\")\nvar urduHeadersPath = fs.realpathSync(__dirname + \"/../src/keywords.js\")\nvar urduHeaders = fs.readFileSync(urduHeadersPath, \"utf8\");\n\nvar compile = require('@sweet-js/core').compile;\nvar NodeLoader = require('@sweet-js/core/dist/node-loader').default;\n\nlet loaderOptions = {\n noBabel: argv.noBabel,\n logging: argv.outFile || argv.outDir\n};\n\nvar loader = new NodeLoader(process.cwd(), loaderOptions);\n\nargv._.forEach(function (file) {\n // first add header file in the dir.\n var fileStr = fs.realpathSync(file)\n //fs.writeFileSync(path.dirname(fileStr) + \"/__urduHeaders.js\", urduHeaders, 'utf8');\n //console.log(\"dir\", path.dirname(file))\n \n var output = compile(fileStr, loader, {\n noBabel: argv.noBabel\n }).code;\n\n //remove the header file we added.\n //fs.unlinkSync(path.dirname(fileStr) + \"/__urduHeaders.js\")\n\n if (argv.outFile) {\n fs.writeFileSync(argv.outFile, output, 'utf8');\n } else if (argv.outDir) {\n fs.writeFileSync(path.join(argv.outDir, path.basename(file)), output, 'utf8');\n } else {\n if (!argv.transpile){\n eval(output)\n }\n else{\n console.log(output);\n }\n }\n});\n" }, { "path": "docs/README.md", "content": "# UrduScript - Urdu Mein Programming \n![](head.png?raw=true&t=4)\nUrduScript ek programming language hai. Iska goal naye programmers k liye programming ko asaan banana ha. UrduScript informal Urdu use karti hai jis se naye programmers k liye programming concepts asaan hojate hen.\n\nUrduScript transpile ho k JavaScript banjati hai. Apke saray JavaScript frameworks (jese jQuery, UnderScore, React, etc) iske saath use keeye jasakte hen.\n\n## Hello Dunya\n\n```js\n// declare variable\nrakho naam = \"Asad\"\n\n// output to console\nlikho(\"Hello, \" + naam)\n```\n\n\n\n### [Online Try Karen!](https://asadmemon.com/urduscript/editor/)\n\n## Kyun?\n\nIf you are an experienced programmer, you might find this stupid. Per ye apke liye nahin hai. \n\nRemember learning programming for the first time? Remember the analogy of `variable` being a box jis mein value rakhte hen. UrduScript is based on those analogies to the core. Removing friction for new programmers.\n\nLet me explain with an example, imagine explaining the following code to a very new learner:\n\n```js\nvar name = \"Ali\"\nconsole.log(\"Hello, \" + name)\n```\n\nYou will have to first convey the box analogy, then you will need to explain what a *console* is and what *log* is. And then finally how we concat the output.\n\nThis is the UrduScript equivalent:\n\n```js\nrakho naam = \"Ali\"\nlikho(\"Hello, \" + naam)\n```\n\nImagine explaining this to a new programmer, when you explain the variable/box analogy, `rakho` fits right in. \nie. We are making a box called `naam` and usmein `\"Ali\"` rakhrahe hen.\n\n`likho()` is also pretty self-explanatory too.\n\nYou get the idea. UrduScript is based on this concept.\n\n## Pure اردو kyu nahin?\n\nAs much as I wanted to. Here are few reasons:\n\n- Persian-like alphabets are not native to our keyboard.\n- The default non-nastaliq font is hard to read.\n- Right-to-left code style is horrible.\n- Newer generation is adapting Urdish rapidly. \n\n\nTo prove my point, here is a RTL pseudo-code hello world:\n\n\n\nSee what I mean? The font is bad. RTL is hard to understand. Also typing this was less natural than Urdish:\n\n\n\n\n## Other Examples\n\n### For Each\n\n```js\n// variable\nrakho list = [\"Ahmed\", \"Ali\", \"Qasim\"]\n\n// foreach loop. Iterate over 'list' array\nhar list k naam per{\n // output to screen\n likho(naam)\n}\n```\n\n### If-Else\n\n```js\n// declare variable\nrakho naam = \"Asad\"\n\n// if else\nagar (naam){\n likho(\"Salam, \" + naam)\n}\nwarna {\n likho(\"Naam khali hai\")\n}\n```\n\n### Prompt\n\n```js\n//prompt: ask for input from user\nrakho naam = pucho(\"Apna naam likhen\")\n\n// if else\nagar (naam){\n likho(\"Salam, \" + naam)\n}\nwarna {\n likho(\"Naam khali hai\")\n}\n```\n\n### Function\n\n```js\n// function is 'kaam'\nkaam salaam(naam){\n\tagar (naam){\n likho(\"Salam, \" + naam)\n }\n warna {\n likho(\"Naam khali hai\")\n }\n}\n\n// calling function\nsalaam(\"Ali\")\n```\n\n### While\n\n```js\n// declare a variable\nrakho a = 10\n\n// while is 'jabtak'\njabtak( a>0 ){\n\tlikho(a)\n\ta--\n}\n```\n\n### Do-While\n\n```js\n// ask age until given\nkaro{\n age = pucho(\"Apni age likhen\")\n}\njabtak(!age)\nlikho(\"Apki age \" + age + \" hai\")\n```\n\n\n### If-Elseif-Else\n\n```js\n// declare variable\nrakho naam = \"Asad\"\n\n// if elseif else\nagar (naam === \"Asad\"){\n likho(\"Salam, \" + naam)\n}\nwarnaagar (naam === \"John\"){\n likho(\"Hello, \" + naam)\n}\nwarna {\n likho(\"Naam khali hai\")\n}\n```\n\n### Recursion (Fibonacci)\n```js\n// recursive function\nkaam fibonacci(num) {\n // base case\n agar (num <= 1) bhejo 1;\n\t\n // recursion\n bhejo fibonacci(num - 1) + fibonacci(num - 2);\n}\n\nlikho(fibonacci(5))\n```\n\n\n## Contribute\n\nYou can contribute even if you think you are not a programmer. Please read [this guide](contribute).\n\nHere are some contributors of the language:\n\n- Ali Alavi\n- Eric Bhatti\n- Azka Qaiser\n- Junaid Sarfraz\n- Mehmood Memon\n- Pavan Kumar\n- Muhammad Asif\n- Ahmed Jawed\n- Harris Irfan\n- Zayn-ul-abdin\n- Mubashar Iqbal\n- M Shaharyar Siddiqui\n- Areeba\n- Ahmer\n- Muhammad Zaid Ikhlas\n- Mian Asad\n- Junaid Nadeem\n- Shahan\n- Muhammad Noman\n- Ahsan Sohail\n- Majid Razvi\n- Hammad Siddiqui\n\n## [Source Code](https://github.com/asadm/urduscript)\n\nI have released the [code](https://github.com/asadm/urduscript) under MIT License. ⭐ the repo while you are there :P\n\nThe transpiler is written in JavaScript using [Sweet.js](https://github.com/sweet-js/sweet-core)." }, { "path": "docs/_config.yml", "content": "theme: jekyll-theme-minimal\ntitle: UrduScript\ndescription: JavaScript ka Urdish dialect.\n\ngems:\n - jekyll-seo-tag\n\nlogo: 'head.png'\n\ndefaults:\n - scope:\n path: \"\"\n values:\n image: 'head.png'" }, { "path": "docs/contribute.md", "content": "# Contributing\n\nThe goal of UrduScript is to make programming more accessible to beginners from South Asia. \n\nThere are two ways to contribute.\n\n## Contribute to Grammar\n\nUrduScript uses informal Urdu analogies to programming concepts, making it easy to get started without remembering keywords.\n\nWith that in mind. If you have suggestion for a keyword (Like \"true\" should be \"sach\"). Please [record it here](https://goo.gl/forms/2yU3xylEoKAQZrbG2). I will add your name to the contributors if I use your suggestion. Thanks!\n\n\n\n## Contribute to Code\n\nThe [code](https://github.com/asadm/urduscript) is a proof of concept right now. I will put up more instructions on how things work. This section is *TODO*" }, { "path": "docs/editor/addon/edit/matchbrackets.js", "content": "// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: http://codemirror.net/LICENSE\n\n(function(mod) {\n if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n mod(require(\"../../lib/codemirror\"));\n else if (typeof define == \"function\" && define.amd) // AMD\n define([\"../../lib/codemirror\"], mod);\n else // Plain browser env\n mod(CodeMirror);\n})(function(CodeMirror) {\n var ie_lt8 = /MSIE \\d/.test(navigator.userAgent) &&\n (document.documentMode == null || document.documentMode < 8);\n\n var Pos = CodeMirror.Pos;\n\n var matching = {\"(\": \")>\", \")\": \"(<\", \"[\": \"]>\", \"]\": \"[<\", \"{\": \"}>\", \"}\": \"{<\"};\n\n function findMatchingBracket(cm, where, config) {\n var line = cm.getLineHandle(where.line), pos = where.ch - 1;\n var afterCursor = config && config.afterCursor\n if (afterCursor == null)\n afterCursor = /(^| )cm-fat-cursor($| )/.test(cm.getWrapperElement().className)\n\n // A cursor is defined as between two characters, but in in vim command mode\n // (i.e. not insert mode), the cursor is visually represented as a\n // highlighted box on top of the 2nd character. Otherwise, we allow matches\n // from before or after the cursor.\n var match = (!afterCursor && pos >= 0 && matching[line.text.charAt(pos)]) ||\n matching[line.text.charAt(++pos)];\n if (!match) return null;\n var dir = match.charAt(1) == \">\" ? 1 : -1;\n if (config && config.strict && (dir > 0) != (pos == where.ch)) return null;\n var style = cm.getTokenTypeAt(Pos(where.line, pos + 1));\n\n var found = scanForBracket(cm, Pos(where.line, pos + (dir > 0 ? 1 : 0)), dir, style || null, config);\n if (found == null) return null;\n return {from: Pos(where.line, pos), to: found && found.pos,\n match: found && found.ch == match.charAt(0), forward: dir > 0};\n }\n\n // bracketRegex is used to specify which type of bracket to scan\n // should be a regexp, e.g. /[[\\]]/\n //\n // Note: If \"where\" is on an open bracket, then this bracket is ignored.\n //\n // Returns false when no bracket was found, null when it reached\n // maxScanLines and gave up\n function scanForBracket(cm, where, dir, style, config) {\n var maxScanLen = (config && config.maxScanLineLength) || 10000;\n var maxScanLines = (config && config.maxScanLines) || 1000;\n\n var stack = [];\n var re = config && config.bracketRegex ? config.bracketRegex : /[(){}[\\]]/;\n var lineEnd = dir > 0 ? Math.min(where.line + maxScanLines, cm.lastLine() + 1)\n : Math.max(cm.firstLine() - 1, where.line - maxScanLines);\n for (var lineNo = where.line; lineNo != lineEnd; lineNo += dir) {\n var line = cm.getLine(lineNo);\n if (!line) continue;\n var pos = dir > 0 ? 0 : line.length - 1, end = dir > 0 ? line.length : -1;\n if (line.length > maxScanLen) continue;\n if (lineNo == where.line) pos = where.ch - (dir < 0 ? 1 : 0);\n for (; pos != end; pos += dir) {\n var ch = line.charAt(pos);\n if (re.test(ch) && (style === undefined || cm.getTokenTypeAt(Pos(lineNo, pos + 1)) == style)) {\n var match = matching[ch];\n if ((match.charAt(1) == \">\") == (dir > 0)) stack.push(ch);\n else if (!stack.length) return {pos: Pos(lineNo, pos), ch: ch};\n else stack.pop();\n }\n }\n }\n return lineNo - dir == (dir > 0 ? cm.lastLine() : cm.firstLine()) ? false : null;\n }\n\n function matchBrackets(cm, autoclear, config) {\n // Disable brace matching in long lines, since it'll cause hugely slow updates\n var maxHighlightLen = cm.state.matchBrackets.maxHighlightLineLength || 1000;\n var marks = [], ranges = cm.listSelections();\n for (var i = 0; i < ranges.length; i++) {\n var match = ranges[i].empty() && findMatchingBracket(cm, ranges[i].head, config);\n if (match && cm.getLine(match.from.line).length <= maxHighlightLen) {\n var style = match.match ? \"CodeMirror-matchingbracket\" : \"CodeMirror-nonmatchingbracket\";\n marks.push(cm.markText(match.from, Pos(match.from.line, match.from.ch + 1), {className: style}));\n if (match.to && cm.getLine(match.to.line).length <= maxHighlightLen)\n marks.push(cm.markText(match.to, Pos(match.to.line, match.to.ch + 1), {className: style}));\n }\n }\n\n if (marks.length) {\n // Kludge to work around the IE bug from issue #1193, where text\n // input stops going to the textare whever this fires.\n if (ie_lt8 && cm.state.focused) cm.focus();\n\n var clear = function() {\n cm.operation(function() {\n for (var i = 0; i < marks.length; i++) marks[i].clear();\n });\n };\n if (autoclear) setTimeout(clear, 800);\n else return clear;\n }\n }\n\n var currentlyHighlighted = null;\n function doMatchBrackets(cm) {\n cm.operation(function() {\n if (currentlyHighlighted) {currentlyHighlighted(); currentlyHighlighted = null;}\n currentlyHighlighted = matchBrackets(cm, false, cm.state.matchBrackets);\n });\n }\n\n CodeMirror.defineOption(\"matchBrackets\", false, function(cm, val, old) {\n if (old && old != CodeMirror.Init) {\n cm.off(\"cursorActivity\", doMatchBrackets);\n if (currentlyHighlighted) {currentlyHighlighted(); currentlyHighlighted = null;}\n }\n if (val) {\n cm.state.matchBrackets = typeof val == \"object\" ? val : {};\n cm.on(\"cursorActivity\", doMatchBrackets);\n }\n });\n\n CodeMirror.defineExtension(\"matchBrackets\", function() {matchBrackets(this, true);});\n CodeMirror.defineExtension(\"findMatchingBracket\", function(pos, config, oldConfig){\n // Backwards-compatibility kludge\n if (oldConfig || typeof config == \"boolean\") {\n if (!oldConfig) {\n config = config ? {strict: true} : null\n } else {\n oldConfig.strict = config\n config = oldConfig\n }\n }\n return findMatchingBracket(this, pos, config)\n });\n CodeMirror.defineExtension(\"scanForBracket\", function(pos, dir, style, config){\n return scanForBracket(this, pos, dir, style, config);\n });\n});\n" }, { "path": "docs/editor/css/base16-light.css", "content": "/*\n\n Name: Base16 Default Light\n Author: Chris Kempson (http://chriskempson.com)\n\n CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-chrome-devtools)\n Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)\n\n*/\n\n/* based on https://raw.githubusercontent.com/FarhadG/code-mirror-themes/master/themes/chrome-devtools.css */\n.cm-s-base16-light.CodeMirror {background: #f5f5f5; color: #202020;}\n.cm-s-base16-light div.CodeMirror-selected {background: #e0e0e0 !important;}\n.cm-s-base16-light .CodeMirror-gutters {background: #f5f5f5; border-right: 0px;}\n.cm-s-base16-light .CodeMirror-linenumber {color: #b0b0b0;}\n.cm-s-base16-light .CodeMirror-cursor {border-left: 1px solid #505050 !important;}\n\n.cm-s-base16-light span.cm-comment {color: #8f5536;}\n.cm-s-base16-light span.cm-atom {color: #aa759f;}\n.cm-s-base16-light span.cm-number {color: #aa759f;}\n\n.cm-s-base16-light span.cm-property, .cm-s-base16-light span.cm-attribute {color: #90a959;}\n.cm-s-base16-light span.cm-keyword {color: #ac4142;}\n.cm-s-base16-light span.cm-string {color: #F0A742;}\n\n.cm-s-base16-light span.cm-variable {color: #7D944C;}\n.cm-s-base16-light span.cm-variable-2 {color: #6a9fb5;}\n.cm-s-base16-light span.cm-def {color: #d28445;}\n.cm-s-base16-light span.cm-bracket {color: #202020;}\n.cm-s-base16-light span.cm-tag {color: #ac4142;}\n.cm-s-base16-light span.cm-link {color: #aa759f;}\n.cm-s-base16-light span.cm-error {background: #ac4142; color: #505050;}\n\n.cm-s-base16-light .CodeMirror-activeline-background {background: #DDDCDC !important;}\n.cm-s-base16-light .CodeMirror-matchingbracket { text-decoration: underline; color: #ff00ff !important;}\n\n/* Based on Sublime Text's Monokai theme */\n\nbody.invert .cm-s-base16-light.CodeMirror {background: rgb(22,23,25); color: #f8f8f2;}\nbody.invert .cm-s-base16-light div.CodeMirror-selected {background: #49483E !important;}\nbody.invert .cm-s-base16-light .CodeMirror-gutters {background: rgb(22,23,25); border-right: 0px;}\nbody.invert .cm-s-base16-light .CodeMirror-linenumber {color: #484848;}\nbody.invert .cm-s-base16-light .CodeMirror-cursor {border-left: 1px solid #f8f8f0 !important;}\n\nbody.invert .cm-s-base16-light span.cm-comment {color: #75715e;}\nbody.invert .cm-s-base16-light span.cm-atom {color: #ae81ff;}\nbody.invert .cm-s-base16-light span.cm-number {color: #ae81ff;}\n\nbody.invert .cm-s-base16-light span.cm-property,body.invert .cm-s-base16-light span.cm-attribute {color: #a6e22e;}\nbody.invert .cm-s-base16-light span.cm-keyword {color: #f92672;}\nbody.invert .cm-s-base16-light span.cm-string {color: #e6db74;}\n\nbody.invert .cm-s-base16-light span.cm-variable {color: #a6e22e;}\nbody.invert .cm-s-base16-light span.cm-variable-2 {color: #9effff;}\nbody.invert .cm-s-base16-light span.cm-def {color: #fd971f;}\nbody.invert .cm-s-base16-light span.cm-bracket {color: #f8f8f2;}\nbody.invert .cm-s-base16-light span.cm-tag {color: #f92672;}\nbody.invert .cm-s-base16-light span.cm-link {color: #ae81ff;}\nbody.invert .cm-s-base16-light span.cm-error {background: #f92672; color: #f8f8f0;}\n\nbody.invert .cm-s-base16-light .CodeMirror-activeline-background {background: #373831 !important;}\nbody.invert .cm-s-base16-light .CodeMirror-matchingbracket {\n text-decoration: underline;\n color: white !important;\n}\n" }, { "path": "docs/editor/css/codemirror.css", "content": "/* BASICS */\n\n.CodeMirror {\n /* Set height, width, borders, and global font properties here */\n font-family: monospace;\n height: 300px;\n color: black;\n}\n\n/* PADDING */\n\n.CodeMirror-lines {\n padding: 4px 0; /* Vertical padding around content */\n}\n.CodeMirror pre {\n padding: 0 4px; /* Horizontal padding of content */\n}\n\n.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {\n background-color: white; /* The little square between H and V scrollbars */\n}\n\n/* GUTTER */\n\n.CodeMirror-gutters {\n border-right: 1px solid #ddd;\n background-color: #f7f7f7;\n white-space: nowrap;\n}\n.CodeMirror-linenumbers {}\n.CodeMirror-linenumber {\n padding: 0 3px 0 5px;\n min-width: 20px;\n text-align: right;\n color: #999;\n white-space: nowrap;\n}\n\n.CodeMirror-guttermarker { color: black; }\n.CodeMirror-guttermarker-subtle { color: #999; }\n\n/* CURSOR */\n\n.CodeMirror-cursor {\n border-left: 1px solid black;\n border-right: none;\n width: 0;\n}\n/* Shown when moving in bi-directional text */\n.CodeMirror div.CodeMirror-secondarycursor {\n border-left: 1px solid silver;\n}\n.cm-fat-cursor .CodeMirror-cursor {\n width: auto;\n border: 0 !important;\n background: #7e7;\n}\n.cm-fat-cursor div.CodeMirror-cursors {\n z-index: 1;\n}\n\n.cm-animate-fat-cursor {\n width: auto;\n border: 0;\n -webkit-animation: blink 1.06s steps(1) infinite;\n -moz-animation: blink 1.06s steps(1) infinite;\n animation: blink 1.06s steps(1) infinite;\n background-color: #7e7;\n}\n@-moz-keyframes blink {\n 0% {}\n 50% { background-color: transparent; }\n 100% {}\n}\n@-webkit-keyframes blink {\n 0% {}\n 50% { background-color: transparent; }\n 100% {}\n}\n@keyframes blink {\n 0% {}\n 50% { background-color: transparent; }\n 100% {}\n}\n\n/* Can style cursor different in overwrite (non-insert) mode */\n.CodeMirror-overwrite .CodeMirror-cursor {}\n\n.cm-tab { display: inline-block; text-decoration: inherit; }\n\n.CodeMirror-rulers {\n position: absolute;\n left: 0; right: 0; top: -50px; bottom: -20px;\n overflow: hidden;\n}\n.CodeMirror-ruler {\n border-left: 1px solid #ccc;\n top: 0; bottom: 0;\n position: absolute;\n}\n\n/* DEFAULT THEME */\n\n.cm-s-default .cm-header {color: blue;}\n.cm-s-default .cm-quote {color: #090;}\n.cm-negative {color: #d44;}\n.cm-positive {color: #292;}\n.cm-header, .cm-strong {font-weight: bold;}\n.cm-em {font-style: italic;}\n.cm-link {text-decoration: underline;}\n.cm-strikethrough {text-decoration: line-through;}\n\n.cm-s-default .cm-keyword {color: #708;}\n.cm-s-default .cm-atom {color: #219;}\n.cm-s-default .cm-number {color: #164;}\n.cm-s-default .cm-def {color: #00f;}\n.cm-s-default .cm-variable,\n.cm-s-default .cm-punctuation,\n.cm-s-default .cm-property,\n.cm-s-default .cm-operator {}\n.cm-s-default .cm-variable-2 {color: #05a;}\n.cm-s-default .cm-variable-3, .cm-s-default .cm-type {color: #085;}\n.cm-s-default .cm-comment {color: #a50;}\n.cm-s-default .cm-string {color: #a11;}\n.cm-s-default .cm-string-2 {color: #f50;}\n.cm-s-default .cm-meta {color: #555;}\n.cm-s-default .cm-qualifier {color: #555;}\n.cm-s-default .cm-builtin {color: #30a;}\n.cm-s-default .cm-bracket {color: #997;}\n.cm-s-default .cm-tag {color: #170;}\n.cm-s-default .cm-attribute {color: #00c;}\n.cm-s-default .cm-hr {color: #999;}\n.cm-s-default .cm-link {color: #00c;}\n\n.cm-s-default .cm-error {color: #f00;}\n.cm-invalidchar {color: #f00;}\n\n.CodeMirror-composing { border-bottom: 2px solid; }\n\n/* Default styles for common addons */\n\ndiv.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}\ndiv.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}\n.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }\n.CodeMirror-activeline-background {background: #e8f2ff;}\n\n/* STOP */\n\n/* The rest of this file contains styles related to the mechanics of\n the editor. You probably shouldn't touch them. */\n\n.CodeMirror {\n position: relative;\n overflow: hidden;\n background: white;\n}\n\n.CodeMirror-scroll {\n overflow: scroll !important; /* Things will break if this is overridden */\n /* 30px is the magic margin used to hide the element's real scrollbars */\n /* See overflow: hidden in .CodeMirror */\n margin-bottom: -30px; margin-right: -30px;\n padding-bottom: 30px;\n height: 100%;\n outline: none; /* Prevent dragging from highlighting the element */\n position: relative;\n}\n.CodeMirror-sizer {\n position: relative;\n border-right: 30px solid transparent;\n}\n\n/* The fake, visible scrollbars. Used to force redraw during scrolling\n before actual scrolling happens, thus preventing shaking and\n flickering artifacts. */\n.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {\n position: absolute;\n z-index: 6;\n display: none;\n}\n.CodeMirror-vscrollbar {\n right: 0; top: 0;\n overflow-x: hidden;\n overflow-y: scroll;\n}\n.CodeMirror-hscrollbar {\n bottom: 0; left: 0;\n overflow-y: hidden;\n overflow-x: scroll;\n}\n.CodeMirror-scrollbar-filler {\n right: 0; bottom: 0;\n}\n.CodeMirror-gutter-filler {\n left: 0; bottom: 0;\n}\n\n.CodeMirror-gutters {\n position: absolute; left: 0; top: 0;\n min-height: 100%;\n z-index: 3;\n}\n.CodeMirror-gutter {\n white-space: normal;\n height: 100%;\n display: inline-block;\n vertical-align: top;\n margin-bottom: -30px;\n}\n.CodeMirror-gutter-wrapper {\n position: absolute;\n z-index: 4;\n background: none !important;\n border: none !important;\n}\n.CodeMirror-gutter-background {\n position: absolute;\n top: 0; bottom: 0;\n z-index: 4;\n}\n.CodeMirror-gutter-elt {\n position: absolute;\n cursor: default;\n z-index: 4;\n}\n.CodeMirror-gutter-wrapper ::selection { background-color: transparent }\n.CodeMirror-gutter-wrapper ::-moz-selection { background-color: transparent }\n\n.CodeMirror-lines {\n cursor: text;\n min-height: 1px; /* prevents collapsing before first draw */\n}\n.CodeMirror pre {\n /* Reset some styles that the rest of the page might have set */\n -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;\n border-width: 0;\n background: transparent;\n font-family: inherit;\n font-size: inherit;\n margin: 0;\n white-space: pre;\n word-wrap: normal;\n line-height: inherit;\n color: inherit;\n z-index: 2;\n position: relative;\n overflow: visible;\n -webkit-tap-highlight-color: transparent;\n -webkit-font-variant-ligatures: contextual;\n font-variant-ligatures: contextual;\n}\n.CodeMirror-wrap pre {\n word-wrap: break-word;\n white-space: pre-wrap;\n word-break: normal;\n}\n\n.CodeMirror-linebackground {\n position: absolute;\n left: 0; right: 0; top: 0; bottom: 0;\n z-index: 0;\n}\n\n.CodeMirror-linewidget {\n position: relative;\n z-index: 2;\n overflow: auto;\n}\n\n.CodeMirror-widget {}\n\n.CodeMirror-rtl pre { direction: rtl; }\n\n.CodeMirror-code {\n outline: none;\n}\n\n/* Force content-box sizing for the elements where we expect it */\n.CodeMirror-scroll,\n.CodeMirror-sizer,\n.CodeMirror-gutter,\n.CodeMirror-gutters,\n.CodeMirror-linenumber {\n -moz-box-sizing: content-box;\n box-sizing: content-box;\n}\n\n.CodeMirror-measure {\n position: absolute;\n width: 100%;\n height: 0;\n overflow: hidden;\n visibility: hidden;\n}\n\n.CodeMirror-cursor {\n position: absolute;\n pointer-events: none;\n}\n.CodeMirror-measure pre { position: static; }\n\ndiv.CodeMirror-cursors {\n visibility: hidden;\n position: relative;\n z-index: 3;\n}\ndiv.CodeMirror-dragcursors {\n visibility: visible;\n}\n\n.CodeMirror-focused div.CodeMirror-cursors {\n visibility: visible;\n}\n\n.CodeMirror-selected { background: #d9d9d9; }\n.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }\n.CodeMirror-crosshair { cursor: crosshair; }\n.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; }\n.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }\n\n.cm-searching {\n background: #ffa;\n background: rgba(255, 255, 0, .4);\n}\n\n/* Used to force a border model for a node */\n.cm-force-border { padding-right: .1px; }\n\n@media print {\n /* Hide the cursor when printing */\n .CodeMirror div.CodeMirror-cursors {\n visibility: hidden;\n }\n}\n\n/* See issue #2901 */\n.cm-tab-wrap-hack:after { content: ''; }\n\n/* Help users use markselection to safely style text background */\nspan.CodeMirror-selectedtext { background: none; }" }, { "path": "docs/editor/css/style.css", "content": "body {\n font-family: Droid Sans, Arial, sans-serif;\n line-height: 1.5;\n /*max-width: 64.3em;*/\n}\n.CodeMirror {\n font-family: Menlo, 'Source Code Pro', monospace;\n font-size: 15px;\n height: 100%;\n}\n\n#options {\n position: absolute;\n font-size: 14px;\n font-family: Droid Sans, Arial, sans-serif;\n line-height: 1.5;\n top: 20px;\n right: 40px;\n z-index: 1;\n\n}\n\n#header {\n color: #fff;\n background-color: #000;\n position: absolute;\n bottom: 0;\n right: 50%;\n left: 0;\n height: 40px;\n \n \n \n font-family: 'Lato',Helvetica Neue,Helvetica,Arial,sans-serif;\n font-weight: 300;\n padding-left: 20px;\n}\n\n#header span{\n display: inline-block;\n margin-top: 7px;\n}\n\n#controls {\n color: #fff;\n background-color: #000;\n position: absolute;;\n height: 40px;\n right: 0;\n bottom: 0;\n left: 50%;\n\n}\n\n#errors {\n color: red;\n position: absolute;\n background-color: white;\n /*right: 10;*/\n z-index: 10;\n bottom: 10;\n /*left: 50%;*/\n /*padding-top: 20px;*/\n /*padding-left: 55px;*/\n padding: 10px;\n}\n\n#edit-box {\n position: absolute;\n top: 0px;\n right: 50%;\n bottom: 40px;\n left: 0;\n border-right: 1px solid #000;\n}\n#output-box {\n position: absolute;\n top: 0px;\n right: 0;\n bottom: 40px;\n left: 50%;\n}\n\n\n/* Small Devices, Tablets */\n@media only screen and (max-width : 768px) {\n #edit-box{\n right: 0;\n bottom: 30%;\n border-bottom: 1px solid #000;\n border-right: 0px;\n }\n\n #output-box{\n top: 70%;\n bottom: 40px;\n left: 0;\n }\n\n #header{\n right: 0;\n padding-left: 0;\n }\n #header span{\n display: none;\n }\n #controls{\n display: none;\n }\n\n #drop-examples{\n margin-right: 10px;\n margin-top: 8px;\n float: right;\n }\n}\n\n.btn {\n display: inline-block;\n padding: 6px 12px;\n margin-bottom: 0;\n font-size: 14px;\n font-weight: 400;\n line-height: 1.42857143;\n text-align: center;\n white-space: nowrap;\n vertical-align: middle;\n -ms-touch-action: manipulation;\n touch-action: manipulation;\n cursor: pointer;\n -webkit-user-select: none;\n -moz-user-select: none;\n -ms-user-select: none;\n user-select: none;\n background-image: none;\n border: 1px solid transparent;\n border-radius: 4px;\n\n box-shadow: none;\n border: 1px solid rgba(0,0,0,.125);\n}\n\nbody.invert .btn-success {\n color: #fff;\n background-color: rgb(97, 152, 32);\n}\n\n#btn-run,\n#lbl-examples{\n margin-left: 10px;\n}\n\n.btn-default{\n color: #fff;\n background-color: #000;\n border: 1px solid #fff;\n}\n\n#chk-transpile{\n margin-top: 15px;\n}\n\n#lbl-examples{\n font-weight: bold;\n font-size: 13px; \n margin-right: 10px;\n}\n\n#drop-examples{\n font-size: 14px;\n min-width: 150px;\n}" }, { "path": "docs/editor/index.html", "content": "\n\n \n Play UrduScript\n \n \n \n \n \n \n\n \n \n \n \n \n \n\n \n\n\n\n\n\n
\n \n Only output transpiled code.\n \n \n
\n
\n  \n
\n\n
\n\n
\n\n
\n\n
\n\n\n\n\n" }, { "path": "docs/editor/mode/javascript/index.html", "content": "\n\n \n \n CodeMirror: JavaScript mode\n \n \n \n \n \n \n \n \n \n \n

CodeMirror: JavaScript mode

\n\n
\n\n \n\n

\n JavaScript mode supports a two configuration\n options:\n

\n

\n\n

MIME types defined: text/javascript, application/json, text/typescript, application/typescript.

\n \n\n" }, { "path": "docs/editor/mode/javascript/javascript.js", "content": "// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: http://codemirror.net/LICENSE\n\n(function(mod) {\n if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n mod(require(\"../../lib/codemirror\"));\n else if (typeof define == \"function\" && define.amd) // AMD\n define([\"../../lib/codemirror\"], mod);\n else // Plain browser env\n mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nfunction expressionAllowed(stream, state, backUp) {\n return /^(?:operator|sof|keyword c|case|new|export|default|[\\[{}\\(,;:]|=>)$/.test(state.lastType) ||\n (state.lastType == \"quasi\" && /\\{\\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))\n}\n\nCodeMirror.defineMode(\"javascript\", function(config, parserConfig) {\n var indentUnit = config.indentUnit;\n var statementIndent = parserConfig.statementIndent;\n var jsonldMode = parserConfig.jsonld;\n var jsonMode = parserConfig.json || jsonldMode;\n var isTS = parserConfig.typescript;\n var wordRE = parserConfig.wordCharacters || /[\\w$\\xa1-\\uffff]/;\n\n // Tokenizer\n\n var keywords = function(){\n function kw(type) {return {type: type, style: \"keyword\"};}\n var A = kw(\"keyword a\"), B = kw(\"keyword b\"), C = kw(\"keyword c\");\n var operator = kw(\"operator\"), atom = {type: \"atom\", style: \"atom\"};\n\n var jsKeywords = {\n \"if\": kw(\"if\"), \"while\": A, \"with\": A, \"else\": B, \"do\": B, \"try\": B, \"finally\": B,\n \"return\": C, \"break\": C, \"continue\": C, \"new\": kw(\"new\"), \"delete\": C, \"throw\": C, \"debugger\": C,\n \"var\": kw(\"var\"), \"const\": kw(\"var\"), \"let\": kw(\"var\"),\n \"function\": kw(\"function\"), \"catch\": kw(\"catch\"),\n \"for\": kw(\"for\"), \"switch\": kw(\"switch\"), \"case\": kw(\"case\"), \"default\": kw(\"default\"),\n \"in\": operator, \"typeof\": operator, \"instanceof\": operator,\n \"true\": atom, \"false\": atom, \"null\": atom, \"undefined\": atom, \"NaN\": atom, \"Infinity\": atom,\n \"this\": kw(\"this\"), \"class\": kw(\"class\"), \"super\": kw(\"atom\"),\n \"yield\": C, \"export\": kw(\"export\"), \"import\": kw(\"import\"), \"extends\": C,\n \"await\": C\n };\n\n // Extend the 'normal' keywords with the TypeScript language extensions\n if (isTS) {\n var type = {type: \"variable\", style: \"type\"};\n var tsKeywords = {\n // object-like things\n \"interface\": kw(\"class\"),\n \"implements\": C,\n \"namespace\": C,\n \"module\": kw(\"module\"),\n \"enum\": kw(\"module\"),\n\n // scope modifiers\n \"public\": kw(\"modifier\"),\n \"private\": kw(\"modifier\"),\n \"protected\": kw(\"modifier\"),\n \"abstract\": kw(\"modifier\"),\n\n // types\n \"string\": type, \"number\": type, \"boolean\": type, \"any\": type\n };\n\n for (var attr in tsKeywords) {\n jsKeywords[attr] = tsKeywords[attr];\n }\n }\n\n return jsKeywords;\n }();\n\n var isOperatorChar = /[+\\-*&%=<>!?|~^@]/;\n var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)\"/;\n\n function readRegexp(stream) {\n var escaped = false, next, inSet = false;\n while ((next = stream.next()) != null) {\n if (!escaped) {\n if (next == \"/\" && !inSet) return;\n if (next == \"[\") inSet = true;\n else if (inSet && next == \"]\") inSet = false;\n }\n escaped = !escaped && next == \"\\\\\";\n }\n }\n\n // Used as scratch variables to communicate multiple values without\n // consing up tons of objects.\n var type, content;\n function ret(tp, style, cont) {\n type = tp; content = cont;\n return style;\n }\n function tokenBase(stream, state) {\n var ch = stream.next();\n if (ch == '\"' || ch == \"'\") {\n state.tokenize = tokenString(ch);\n return state.tokenize(stream, state);\n } else if (ch == \".\" && stream.match(/^\\d+(?:[eE][+\\-]?\\d+)?/)) {\n return ret(\"number\", \"number\");\n } else if (ch == \".\" && stream.match(\"..\")) {\n return ret(\"spread\", \"meta\");\n } else if (/[\\[\\]{}\\(\\),;\\:\\.]/.test(ch)) {\n return ret(ch);\n } else if (ch == \"=\" && stream.eat(\">\")) {\n return ret(\"=>\", \"operator\");\n } else if (ch == \"0\" && stream.eat(/x/i)) {\n stream.eatWhile(/[\\da-f]/i);\n return ret(\"number\", \"number\");\n } else if (ch == \"0\" && stream.eat(/o/i)) {\n stream.eatWhile(/[0-7]/i);\n return ret(\"number\", \"number\");\n } else if (ch == \"0\" && stream.eat(/b/i)) {\n stream.eatWhile(/[01]/i);\n return ret(\"number\", \"number\");\n } else if (/\\d/.test(ch)) {\n stream.match(/^\\d*(?:\\.\\d*)?(?:[eE][+\\-]?\\d+)?/);\n return ret(\"number\", \"number\");\n } else if (ch == \"/\") {\n if (stream.eat(\"*\")) {\n state.tokenize = tokenComment;\n return tokenComment(stream, state);\n } else if (stream.eat(\"/\")) {\n stream.skipToEnd();\n return ret(\"comment\", \"comment\");\n } else if (expressionAllowed(stream, state, 1)) {\n readRegexp(stream);\n stream.match(/^\\b(([gimyu])(?![gimyu]*\\2))+\\b/);\n return ret(\"regexp\", \"string-2\");\n } else {\n stream.eatWhile(isOperatorChar);\n return ret(\"operator\", \"operator\", stream.current());\n }\n } else if (ch == \"`\") {\n state.tokenize = tokenQuasi;\n return tokenQuasi(stream, state);\n } else if (ch == \"#\") {\n stream.skipToEnd();\n return ret(\"error\", \"error\");\n } else if (isOperatorChar.test(ch)) {\n if (ch != \">\" || !state.lexical || state.lexical.type != \">\")\n stream.eatWhile(isOperatorChar);\n return ret(\"operator\", \"operator\", stream.current());\n } else if (wordRE.test(ch)) {\n stream.eatWhile(wordRE);\n var word = stream.current()\n if (state.lastType != \".\") {\n if (keywords.propertyIsEnumerable(word)) {\n var kw = keywords[word]\n return ret(kw.type, kw.style, word)\n }\n if (word == \"async\" && stream.match(/^\\s*[\\(\\w]/, false))\n return ret(\"async\", \"keyword\", word)\n }\n return ret(\"variable\", \"variable\", word)\n }\n }\n\n function tokenString(quote) {\n return function(stream, state) {\n var escaped = false, next;\n if (jsonldMode && stream.peek() == \"@\" && stream.match(isJsonldKeyword)){\n state.tokenize = tokenBase;\n return ret(\"jsonld-keyword\", \"meta\");\n }\n while ((next = stream.next()) != null) {\n if (next == quote && !escaped) break;\n escaped = !escaped && next == \"\\\\\";\n }\n if (!escaped) state.tokenize = tokenBase;\n return ret(\"string\", \"string\");\n };\n }\n\n function tokenComment(stream, state) {\n var maybeEnd = false, ch;\n while (ch = stream.next()) {\n if (ch == \"/\" && maybeEnd) {\n state.tokenize = tokenBase;\n break;\n }\n maybeEnd = (ch == \"*\");\n }\n return ret(\"comment\", \"comment\");\n }\n\n function tokenQuasi(stream, state) {\n var escaped = false, next;\n while ((next = stream.next()) != null) {\n if (!escaped && (next == \"`\" || next == \"$\" && stream.eat(\"{\"))) {\n state.tokenize = tokenBase;\n break;\n }\n escaped = !escaped && next == \"\\\\\";\n }\n return ret(\"quasi\", \"string-2\", stream.current());\n }\n\n var brackets = \"([{}])\";\n // This is a crude lookahead trick to try and notice that we're\n // parsing the argument patterns for a fat-arrow function before we\n // actually hit the arrow token. It only works if the arrow is on\n // the same line as the arguments and there's no strange noise\n // (comments) in between. Fallback is to only notice when we hit the\n // arrow, and not declare the arguments as locals for the arrow\n // body.\n function findFatArrow(stream, state) {\n if (state.fatArrowAt) state.fatArrowAt = null;\n var arrow = stream.string.indexOf(\"=>\", stream.start);\n if (arrow < 0) return;\n\n if (isTS) { // Try to skip TypeScript return type declarations after the arguments\n var m = /:\\s*(?:\\w+(?:<[^>]*>|\\[\\])?|\\{[^}]*\\})\\s*$/.exec(stream.string.slice(stream.start, arrow))\n if (m) arrow = m.index\n }\n\n var depth = 0, sawSomething = false;\n for (var pos = arrow - 1; pos >= 0; --pos) {\n var ch = stream.string.charAt(pos);\n var bracket = brackets.indexOf(ch);\n if (bracket >= 0 && bracket < 3) {\n if (!depth) { ++pos; break; }\n if (--depth == 0) { if (ch == \"(\") sawSomething = true; break; }\n } else if (bracket >= 3 && bracket < 6) {\n ++depth;\n } else if (wordRE.test(ch)) {\n sawSomething = true;\n } else if (/[\"'\\/]/.test(ch)) {\n return;\n } else if (sawSomething && !depth) {\n ++pos;\n break;\n }\n }\n if (sawSomething && !depth) state.fatArrowAt = pos;\n }\n\n // Parser\n\n var atomicTypes = {\"atom\": true, \"number\": true, \"variable\": true, \"string\": true, \"regexp\": true, \"this\": true, \"jsonld-keyword\": true};\n\n function JSLexical(indented, column, type, align, prev, info) {\n this.indented = indented;\n this.column = column;\n this.type = type;\n this.prev = prev;\n this.info = info;\n if (align != null) this.align = align;\n }\n\n function inScope(state, varname) {\n for (var v = state.localVars; v; v = v.next)\n if (v.name == varname) return true;\n for (var cx = state.context; cx; cx = cx.prev) {\n for (var v = cx.vars; v; v = v.next)\n if (v.name == varname) return true;\n }\n }\n\n function parseJS(state, style, type, content, stream) {\n var cc = state.cc;\n // Communicate our context to the combinators.\n // (Less wasteful than consing up a hundred closures on every call.)\n cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;\n\n if (!state.lexical.hasOwnProperty(\"align\"))\n state.lexical.align = true;\n\n while(true) {\n var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;\n if (combinator(type, content)) {\n while(cc.length && cc[cc.length - 1].lex)\n cc.pop()();\n if (cx.marked) return cx.marked;\n if (type == \"variable\" && inScope(state, content)) return \"variable-2\";\n return style;\n }\n }\n }\n\n // Combinator utils\n\n var cx = {state: null, column: null, marked: null, cc: null};\n function pass() {\n for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);\n }\n function cont() {\n pass.apply(null, arguments);\n return true;\n }\n function register(varname) {\n function inList(list) {\n for (var v = list; v; v = v.next)\n if (v.name == varname) return true;\n return false;\n }\n var state = cx.state;\n cx.marked = \"def\";\n if (state.context) {\n if (inList(state.localVars)) return;\n state.localVars = {name: varname, next: state.localVars};\n } else {\n if (inList(state.globalVars)) return;\n if (parserConfig.globalVars)\n state.globalVars = {name: varname, next: state.globalVars};\n }\n }\n\n // Combinators\n\n var defaultVars = {name: \"this\", next: {name: \"arguments\"}};\n function pushcontext() {\n cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};\n cx.state.localVars = defaultVars;\n }\n function popcontext() {\n cx.state.localVars = cx.state.context.vars;\n cx.state.context = cx.state.context.prev;\n }\n function pushlex(type, info) {\n var result = function() {\n var state = cx.state, indent = state.indented;\n if (state.lexical.type == \"stat\") indent = state.lexical.indented;\n else for (var outer = state.lexical; outer && outer.type == \")\" && outer.align; outer = outer.prev)\n indent = outer.indented;\n state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);\n };\n result.lex = true;\n return result;\n }\n function poplex() {\n var state = cx.state;\n if (state.lexical.prev) {\n if (state.lexical.type == \")\")\n state.indented = state.lexical.indented;\n state.lexical = state.lexical.prev;\n }\n }\n poplex.lex = true;\n\n function expect(wanted) {\n function exp(type) {\n if (type == wanted) return cont();\n else if (wanted == \";\") return pass();\n else return cont(exp);\n };\n return exp;\n }\n\n function statement(type, value) {\n if (type == \"var\") return cont(pushlex(\"vardef\", value.length), vardef, expect(\";\"), poplex);\n if (type == \"keyword a\") return cont(pushlex(\"form\"), parenExpr, statement, poplex);\n if (type == \"keyword b\") return cont(pushlex(\"form\"), statement, poplex);\n if (type == \"{\") return cont(pushlex(\"}\"), block, poplex);\n if (type == \";\") return cont();\n if (type == \"if\") {\n if (cx.state.lexical.info == \"else\" && cx.state.cc[cx.state.cc.length - 1] == poplex)\n cx.state.cc.pop()();\n return cont(pushlex(\"form\"), parenExpr, statement, poplex, maybeelse);\n }\n if (type == \"function\") return cont(functiondef);\n if (type == \"for\") return cont(pushlex(\"form\"), forspec, statement, poplex);\n if (type == \"variable\") {\n if (isTS && value == \"type\") {\n cx.marked = \"keyword\"\n return cont(typeexpr, expect(\"operator\"), typeexpr, expect(\";\"));\n } else {\n return cont(pushlex(\"stat\"), maybelabel);\n }\n }\n if (type == \"switch\") return cont(pushlex(\"form\"), parenExpr, expect(\"{\"), pushlex(\"}\", \"switch\"),\n block, poplex, poplex);\n if (type == \"case\") return cont(expression, expect(\":\"));\n if (type == \"default\") return cont(expect(\":\"));\n if (type == \"catch\") return cont(pushlex(\"form\"), pushcontext, expect(\"(\"), funarg, expect(\")\"),\n statement, poplex, popcontext);\n if (type == \"class\") return cont(pushlex(\"form\"), className, poplex);\n if (type == \"export\") return cont(pushlex(\"stat\"), afterExport, poplex);\n if (type == \"import\") return cont(pushlex(\"stat\"), afterImport, poplex);\n if (type == \"module\") return cont(pushlex(\"form\"), pattern, expect(\"{\"), pushlex(\"}\"), block, poplex, poplex)\n if (type == \"async\") return cont(statement)\n if (value == \"@\") return cont(expression, statement)\n return pass(pushlex(\"stat\"), expression, expect(\";\"), poplex);\n }\n function expression(type) {\n return expressionInner(type, false);\n }\n function expressionNoComma(type) {\n return expressionInner(type, true);\n }\n function parenExpr(type) {\n if (type != \"(\") return pass()\n return cont(pushlex(\")\"), expression, expect(\")\"), poplex)\n }\n function expressionInner(type, noComma) {\n if (cx.state.fatArrowAt == cx.stream.start) {\n var body = noComma ? arrowBodyNoComma : arrowBody;\n if (type == \"(\") return cont(pushcontext, pushlex(\")\"), commasep(pattern, \")\"), poplex, expect(\"=>\"), body, popcontext);\n else if (type == \"variable\") return pass(pushcontext, pattern, expect(\"=>\"), body, popcontext);\n }\n\n var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;\n if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);\n if (type == \"function\") return cont(functiondef, maybeop);\n if (type == \"class\") return cont(pushlex(\"form\"), classExpression, poplex);\n if (type == \"keyword c\" || type == \"async\") return cont(noComma ? maybeexpressionNoComma : maybeexpression);\n if (type == \"(\") return cont(pushlex(\")\"), maybeexpression, expect(\")\"), poplex, maybeop);\n if (type == \"operator\" || type == \"spread\") return cont(noComma ? expressionNoComma : expression);\n if (type == \"[\") return cont(pushlex(\"]\"), arrayLiteral, poplex, maybeop);\n if (type == \"{\") return contCommasep(objprop, \"}\", null, maybeop);\n if (type == \"quasi\") return pass(quasi, maybeop);\n if (type == \"new\") return cont(maybeTarget(noComma));\n return cont();\n }\n function maybeexpression(type) {\n if (type.match(/[;\\}\\)\\],]/)) return pass();\n return pass(expression);\n }\n function maybeexpressionNoComma(type) {\n if (type.match(/[;\\}\\)\\],]/)) return pass();\n return pass(expressionNoComma);\n }\n\n function maybeoperatorComma(type, value) {\n if (type == \",\") return cont(expression);\n return maybeoperatorNoComma(type, value, false);\n }\n function maybeoperatorNoComma(type, value, noComma) {\n var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;\n var expr = noComma == false ? expression : expressionNoComma;\n if (type == \"=>\") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);\n if (type == \"operator\") {\n if (/\\+\\+|--/.test(value)) return cont(me);\n if (value == \"?\") return cont(expression, expect(\":\"), expr);\n return cont(expr);\n }\n if (type == \"quasi\") { return pass(quasi, me); }\n if (type == \";\") return;\n if (type == \"(\") return contCommasep(expressionNoComma, \")\", \"call\", me);\n if (type == \".\") return cont(property, me);\n if (type == \"[\") return cont(pushlex(\"]\"), maybeexpression, expect(\"]\"), poplex, me);\n if (isTS && value == \"as\") { cx.marked = \"keyword\"; return cont(typeexpr, me) }\n }\n function quasi(type, value) {\n if (type != \"quasi\") return pass();\n if (value.slice(value.length - 2) != \"${\") return cont(quasi);\n return cont(expression, continueQuasi);\n }\n function continueQuasi(type) {\n if (type == \"}\") {\n cx.marked = \"string-2\";\n cx.state.tokenize = tokenQuasi;\n return cont(quasi);\n }\n }\n function arrowBody(type) {\n findFatArrow(cx.stream, cx.state);\n return pass(type == \"{\" ? statement : expression);\n }\n function arrowBodyNoComma(type) {\n findFatArrow(cx.stream, cx.state);\n return pass(type == \"{\" ? statement : expressionNoComma);\n }\n function maybeTarget(noComma) {\n return function(type) {\n if (type == \".\") return cont(noComma ? targetNoComma : target);\n else return pass(noComma ? expressionNoComma : expression);\n };\n }\n function target(_, value) {\n if (value == \"target\") { cx.marked = \"keyword\"; return cont(maybeoperatorComma); }\n }\n function targetNoComma(_, value) {\n if (value == \"target\") { cx.marked = \"keyword\"; return cont(maybeoperatorNoComma); }\n }\n function maybelabel(type) {\n if (type == \":\") return cont(poplex, statement);\n return pass(maybeoperatorComma, expect(\";\"), poplex);\n }\n function property(type) {\n if (type == \"variable\") {cx.marked = \"property\"; return cont();}\n }\n function objprop(type, value) {\n if (type == \"async\") {\n cx.marked = \"property\";\n return cont(objprop);\n } else if (type == \"variable\" || cx.style == \"keyword\") {\n cx.marked = \"property\";\n if (value == \"get\" || value == \"set\") return cont(getterSetter);\n return cont(afterprop);\n } else if (type == \"number\" || type == \"string\") {\n cx.marked = jsonldMode ? \"property\" : (cx.style + \" property\");\n return cont(afterprop);\n } else if (type == \"jsonld-keyword\") {\n return cont(afterprop);\n } else if (type == \"modifier\") {\n return cont(objprop)\n } else if (type == \"[\") {\n return cont(expression, expect(\"]\"), afterprop);\n } else if (type == \"spread\") {\n return cont(expression, afterprop);\n } else if (type == \":\") {\n return pass(afterprop)\n }\n }\n function getterSetter(type) {\n if (type != \"variable\") return pass(afterprop);\n cx.marked = \"property\";\n return cont(functiondef);\n }\n function afterprop(type) {\n if (type == \":\") return cont(expressionNoComma);\n if (type == \"(\") return pass(functiondef);\n }\n function commasep(what, end, sep) {\n function proceed(type, value) {\n if (sep ? sep.indexOf(type) > -1 : type == \",\") {\n var lex = cx.state.lexical;\n if (lex.info == \"call\") lex.pos = (lex.pos || 0) + 1;\n return cont(function(type, value) {\n if (type == end || value == end) return pass()\n return pass(what)\n }, proceed);\n }\n if (type == end || value == end) return cont();\n return cont(expect(end));\n }\n return function(type, value) {\n if (type == end || value == end) return cont();\n return pass(what, proceed);\n };\n }\n function contCommasep(what, end, info) {\n for (var i = 3; i < arguments.length; i++)\n cx.cc.push(arguments[i]);\n return cont(pushlex(end, info), commasep(what, end), poplex);\n }\n function block(type) {\n if (type == \"}\") return cont();\n return pass(statement, block);\n }\n function maybetype(type, value) {\n if (isTS) {\n if (type == \":\") return cont(typeexpr);\n if (value == \"?\") return cont(maybetype);\n }\n }\n function typeexpr(type) {\n if (type == \"variable\") {cx.marked = \"type\"; return cont(afterType);}\n if (type == \"string\" || type == \"number\" || type == \"atom\") return cont(afterType);\n if (type == \"{\") return cont(pushlex(\"}\"), commasep(typeprop, \"}\", \",;\"), poplex, afterType)\n if (type == \"(\") return cont(commasep(typearg, \")\"), maybeReturnType)\n }\n function maybeReturnType(type) {\n if (type == \"=>\") return cont(typeexpr)\n }\n function typeprop(type, value) {\n if (type == \"variable\" || cx.style == \"keyword\") {\n cx.marked = \"property\"\n return cont(typeprop)\n } else if (value == \"?\") {\n return cont(typeprop)\n } else if (type == \":\") {\n return cont(typeexpr)\n } else if (type == \"[\") {\n return cont(expression, maybetype, expect(\"]\"), typeprop)\n }\n }\n function typearg(type) {\n if (type == \"variable\") return cont(typearg)\n else if (type == \":\") return cont(typeexpr)\n }\n function afterType(type, value) {\n if (value == \"<\") return cont(pushlex(\">\"), commasep(typeexpr, \">\"), poplex, afterType)\n if (value == \"|\" || type == \".\") return cont(typeexpr)\n if (type == \"[\") return cont(expect(\"]\"), afterType)\n if (value == \"extends\") return cont(typeexpr)\n }\n function vardef() {\n return pass(pattern, maybetype, maybeAssign, vardefCont);\n }\n function pattern(type, value) {\n if (type == \"modifier\") return cont(pattern)\n if (type == \"variable\") { register(value); return cont(); }\n if (type == \"spread\") return cont(pattern);\n if (type == \"[\") return contCommasep(pattern, \"]\");\n if (type == \"{\") return contCommasep(proppattern, \"}\");\n }\n function proppattern(type, value) {\n if (type == \"variable\" && !cx.stream.match(/^\\s*:/, false)) {\n register(value);\n return cont(maybeAssign);\n }\n if (type == \"variable\") cx.marked = \"property\";\n if (type == \"spread\") return cont(pattern);\n if (type == \"}\") return pass();\n return cont(expect(\":\"), pattern, maybeAssign);\n }\n function maybeAssign(_type, value) {\n if (value == \"=\") return cont(expressionNoComma);\n }\n function vardefCont(type) {\n if (type == \",\") return cont(vardef);\n }\n function maybeelse(type, value) {\n if (type == \"keyword b\" && value == \"else\") return cont(pushlex(\"form\", \"else\"), statement, poplex);\n }\n function forspec(type) {\n if (type == \"(\") return cont(pushlex(\")\"), forspec1, expect(\")\"), poplex);\n }\n function forspec1(type) {\n if (type == \"var\") return cont(vardef, expect(\";\"), forspec2);\n if (type == \";\") return cont(forspec2);\n if (type == \"variable\") return cont(formaybeinof);\n return pass(expression, expect(\";\"), forspec2);\n }\n function formaybeinof(_type, value) {\n if (value == \"in\" || value == \"of\") { cx.marked = \"keyword\"; return cont(expression); }\n return cont(maybeoperatorComma, forspec2);\n }\n function forspec2(type, value) {\n if (type == \";\") return cont(forspec3);\n if (value == \"in\" || value == \"of\") { cx.marked = \"keyword\"; return cont(expression); }\n return pass(expression, expect(\";\"), forspec3);\n }\n function forspec3(type) {\n if (type != \")\") cont(expression);\n }\n function functiondef(type, value) {\n if (value == \"*\") {cx.marked = \"keyword\"; return cont(functiondef);}\n if (type == \"variable\") {register(value); return cont(functiondef);}\n if (type == \"(\") return cont(pushcontext, pushlex(\")\"), commasep(funarg, \")\"), poplex, maybetype, statement, popcontext);\n if (isTS && value == \"<\") return cont(pushlex(\">\"), commasep(typeexpr, \">\"), poplex, functiondef)\n }\n function funarg(type) {\n if (type == \"spread\") return cont(funarg);\n return pass(pattern, maybetype, maybeAssign);\n }\n function classExpression(type, value) {\n // Class expressions may have an optional name.\n if (type == \"variable\") return className(type, value);\n return classNameAfter(type, value);\n }\n function className(type, value) {\n if (type == \"variable\") {register(value); return cont(classNameAfter);}\n }\n function classNameAfter(type, value) {\n if (value == \"<\") return cont(pushlex(\">\"), commasep(typeexpr, \">\"), poplex, classNameAfter)\n if (value == \"extends\" || value == \"implements\" || (isTS && type == \",\"))\n return cont(isTS ? typeexpr : expression, classNameAfter);\n if (type == \"{\") return cont(pushlex(\"}\"), classBody, poplex);\n }\n function classBody(type, value) {\n if (type == \"variable\" || cx.style == \"keyword\") {\n if ((value == \"async\" || value == \"static\" || value == \"get\" || value == \"set\" ||\n (isTS && (value == \"public\" || value == \"private\" || value == \"protected\" || value == \"readonly\" || value == \"abstract\"))) &&\n cx.stream.match(/^\\s+[\\w$\\xa1-\\uffff]/, false)) {\n cx.marked = \"keyword\";\n return cont(classBody);\n }\n cx.marked = \"property\";\n return cont(isTS ? classfield : functiondef, classBody);\n }\n if (type == \"[\")\n return cont(expression, expect(\"]\"), isTS ? classfield : functiondef, classBody)\n if (value == \"*\") {\n cx.marked = \"keyword\";\n return cont(classBody);\n }\n if (type == \";\") return cont(classBody);\n if (type == \"}\") return cont();\n if (value == \"@\") return cont(expression, classBody)\n }\n function classfield(type, value) {\n if (value == \"?\") return cont(classfield)\n if (type == \":\") return cont(typeexpr, maybeAssign)\n if (value == \"=\") return cont(expressionNoComma)\n return pass(functiondef)\n }\n function afterExport(type, value) {\n if (value == \"*\") { cx.marked = \"keyword\"; return cont(maybeFrom, expect(\";\")); }\n if (value == \"default\") { cx.marked = \"keyword\"; return cont(expression, expect(\";\")); }\n if (type == \"{\") return cont(commasep(exportField, \"}\"), maybeFrom, expect(\";\"));\n return pass(statement);\n }\n function exportField(type, value) {\n if (value == \"as\") { cx.marked = \"keyword\"; return cont(expect(\"variable\")); }\n if (type == \"variable\") return pass(expressionNoComma, exportField);\n }\n function afterImport(type) {\n if (type == \"string\") return cont();\n return pass(importSpec, maybeMoreImports, maybeFrom);\n }\n function importSpec(type, value) {\n if (type == \"{\") return contCommasep(importSpec, \"}\");\n if (type == \"variable\") register(value);\n if (value == \"*\") cx.marked = \"keyword\";\n return cont(maybeAs);\n }\n function maybeMoreImports(type) {\n if (type == \",\") return cont(importSpec, maybeMoreImports)\n }\n function maybeAs(_type, value) {\n if (value == \"as\") { cx.marked = \"keyword\"; return cont(importSpec); }\n }\n function maybeFrom(_type, value) {\n if (value == \"from\") { cx.marked = \"keyword\"; return cont(expression); }\n }\n function arrayLiteral(type) {\n if (type == \"]\") return cont();\n return pass(commasep(expressionNoComma, \"]\"));\n }\n\n function isContinuedStatement(state, textAfter) {\n return state.lastType == \"operator\" || state.lastType == \",\" ||\n isOperatorChar.test(textAfter.charAt(0)) ||\n /[,.]/.test(textAfter.charAt(0));\n }\n\n // Interface\n\n return {\n startState: function(basecolumn) {\n var state = {\n tokenize: tokenBase,\n lastType: \"sof\",\n cc: [],\n lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, \"block\", false),\n localVars: parserConfig.localVars,\n context: parserConfig.localVars && {vars: parserConfig.localVars},\n indented: basecolumn || 0\n };\n if (parserConfig.globalVars && typeof parserConfig.globalVars == \"object\")\n state.globalVars = parserConfig.globalVars;\n return state;\n },\n\n token: function(stream, state) {\n if (stream.sol()) {\n if (!state.lexical.hasOwnProperty(\"align\"))\n state.lexical.align = false;\n state.indented = stream.indentation();\n findFatArrow(stream, state);\n }\n if (state.tokenize != tokenComment && stream.eatSpace()) return null;\n var style = state.tokenize(stream, state);\n if (type == \"comment\") return style;\n state.lastType = type == \"operator\" && (content == \"++\" || content == \"--\") ? \"incdec\" : type;\n return parseJS(state, style, type, content, stream);\n },\n\n indent: function(state, textAfter) {\n if (state.tokenize == tokenComment) return CodeMirror.Pass;\n if (state.tokenize != tokenBase) return 0;\n var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, top\n // Kludge to prevent 'maybelse' from blocking lexical scope pops\n if (!/^\\s*else\\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {\n var c = state.cc[i];\n if (c == poplex) lexical = lexical.prev;\n else if (c != maybeelse) break;\n }\n while ((lexical.type == \"stat\" || lexical.type == \"form\") &&\n (firstChar == \"}\" || ((top = state.cc[state.cc.length - 1]) &&\n (top == maybeoperatorComma || top == maybeoperatorNoComma) &&\n !/^[,\\.=+\\-*:?[\\(]/.test(textAfter))))\n lexical = lexical.prev;\n if (statementIndent && lexical.type == \")\" && lexical.prev.type == \"stat\")\n lexical = lexical.prev;\n var type = lexical.type, closing = firstChar == type;\n\n if (type == \"vardef\") return lexical.indented + (state.lastType == \"operator\" || state.lastType == \",\" ? lexical.info + 1 : 0);\n else if (type == \"form\" && firstChar == \"{\") return lexical.indented;\n else if (type == \"form\") return lexical.indented + indentUnit;\n else if (type == \"stat\")\n return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);\n else if (lexical.info == \"switch\" && !closing && parserConfig.doubleIndentSwitch != false)\n return lexical.indented + (/^(?:case|default)\\b/.test(textAfter) ? indentUnit : 2 * indentUnit);\n else if (lexical.align) return lexical.column + (closing ? 0 : 1);\n else return lexical.indented + (closing ? 0 : indentUnit);\n },\n\n electricInput: /^\\s*(?:case .*?:|default:|\\{|\\})$/,\n blockCommentStart: jsonMode ? null : \"/*\",\n blockCommentEnd: jsonMode ? null : \"*/\",\n lineComment: jsonMode ? null : \"//\",\n fold: \"brace\",\n closeBrackets: \"()[]{}''\\\"\\\"``\",\n\n helperType: jsonMode ? \"json\" : \"javascript\",\n jsonldMode: jsonldMode,\n jsonMode: jsonMode,\n\n expressionAllowed: expressionAllowed,\n skipExpression: function(state) {\n var top = state.cc[state.cc.length - 1]\n if (top == expression || top == expressionNoComma) state.cc.pop()\n }\n };\n});\n\nCodeMirror.registerHelper(\"wordChars\", \"javascript\", /[\\w$]/);\n\nCodeMirror.defineMIME(\"text/javascript\", \"javascript\");\nCodeMirror.defineMIME(\"text/ecmascript\", \"javascript\");\nCodeMirror.defineMIME(\"application/javascript\", \"javascript\");\nCodeMirror.defineMIME(\"application/x-javascript\", \"javascript\");\nCodeMirror.defineMIME(\"application/ecmascript\", \"javascript\");\nCodeMirror.defineMIME(\"application/json\", {name: \"javascript\", json: true});\nCodeMirror.defineMIME(\"application/x-json\", {name: \"javascript\", json: true});\nCodeMirror.defineMIME(\"application/ld+json\", {name: \"javascript\", jsonld: true});\nCodeMirror.defineMIME(\"text/typescript\", { name: \"javascript\", typescript: true });\nCodeMirror.defineMIME(\"application/typescript\", { name: \"javascript\", typescript: true });\n\n});" }, { "path": "docs/editor/mode/javascript/typescript.html", "content": "\n\n \n \n CodeMirror: TypeScript mode\n \n \n \n \n \n \n \n

CodeMirror: TypeScript mode

\n\n
\n\n \n\n

This is a specialization of the JavaScript mode.

\n \n\n" }, { "path": "docs/editor/mode/urduscript/urduscript.js", "content": "// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: http://codemirror.net/LICENSE\n\n(function(mod) {\n if (typeof exports == \"object\" && typeof module == \"object\") // CommonJS\n mod(require(\"../../lib/codemirror\"));\n else if (typeof define == \"function\" && define.amd) // AMD\n define([\"../../lib/codemirror\"], mod);\n else // Plain browser env\n mod(CodeMirror);\n})(function(CodeMirror) {\n\"use strict\";\n\nfunction expressionAllowed(stream, state, backUp) {\n return /^(?:operator|sof|keyword c|case|new|export|default|[\\[{}\\(,;:]|=>)$/.test(state.lastType) ||\n (state.lastType == \"quasi\" && /\\{\\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))\n}\n\nCodeMirror.defineMode(\"javascript\", function(config, parserConfig) {\n var indentUnit = config.indentUnit;\n var statementIndent = parserConfig.statementIndent;\n var jsonldMode = parserConfig.jsonld;\n var jsonMode = parserConfig.json || jsonldMode;\n var isTS = parserConfig.typescript;\n var wordRE = parserConfig.wordCharacters || /[\\w$\\xa1-\\uffff]/;\n\n // Tokenizer\n\n var keywords = function(){\n function kw(type) {return {type: type, style: \"keyword\"};}\n var A = kw(\"keyword a\"), B = kw(\"keyword b\"), C = kw(\"keyword c\");\n var operator = kw(\"operator\"), atom = {type: \"atom\", style: \"atom\"};\n\n var jsKeywords = {\n \"if\": kw(\"if\"), \"while\": A, \"with\": A, \"else\": B, \"do\": B, \"try\": B, \"finally\": B,\n \"return\": C, \"break\": C, \"continue\": C, \"new\": kw(\"new\"), \"delete\": C, \"throw\": C, \"debugger\": C,\n \"var\": kw(\"var\"), \"const\": kw(\"var\"), \"let\": kw(\"var\"),\n \"function\": kw(\"function\"), \"catch\": kw(\"catch\"),\n \"for\": kw(\"for\"), \"switch\": kw(\"switch\"), \"case\": kw(\"case\"), \"default\": kw(\"default\"),\n \"in\": operator, \"typeof\": operator, \"instanceof\": operator,\n \"true\": atom, \"false\": atom, \"null\": atom, \"undefined\": atom, \"NaN\": atom, \"Infinity\": atom,\n \"this\": kw(\"this\"), \"class\": kw(\"class\"), \"super\": kw(\"atom\"),\n \"yield\": C, \"export\": kw(\"export\"), \"import\": kw(\"import\"), \"extends\": C,\n \"await\": C,\n //urduscript additions:\n \"agar\": kw(\"if\"), \"karo\": B, \"jabtak\": A, \"warna\": B, \"warnaagar\": B,\n \"rakho\": kw(\"var\"), \"likho\": A, \"pucho\": A,\n \"sahi\": atom, \"galat\": atom, \"ghalat\": atom, \"khali\": atom, \"khaali\": atom,\n \"kaam\": kw(\"function\"), \"har\": kw(\"for\"), \"k\": A, \"per\": A, \"pe\": A,\n \"bhejo\": C, \"rukjao\": C\n };\n\n // Extend the 'normal' keywords with the TypeScript language extensions\n if (isTS) {\n var type = {type: \"variable\", style: \"type\"};\n var tsKeywords = {\n // object-like things\n \"interface\": kw(\"class\"),\n \"implements\": C,\n \"namespace\": C,\n \"module\": kw(\"module\"),\n \"enum\": kw(\"module\"),\n\n // scope modifiers\n \"public\": kw(\"modifier\"),\n \"private\": kw(\"modifier\"),\n \"protected\": kw(\"modifier\"),\n \"abstract\": kw(\"modifier\"),\n\n // types\n \"string\": type, \"number\": type, \"boolean\": type, \"any\": type\n };\n\n for (var attr in tsKeywords) {\n jsKeywords[attr] = tsKeywords[attr];\n }\n }\n\n return jsKeywords;\n }();\n\n var isOperatorChar = /[+\\-*&%=<>!?|~^@]/;\n var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)\"/;\n\n function readRegexp(stream) {\n var escaped = false, next, inSet = false;\n while ((next = stream.next()) != null) {\n if (!escaped) {\n if (next == \"/\" && !inSet) return;\n if (next == \"[\") inSet = true;\n else if (inSet && next == \"]\") inSet = false;\n }\n escaped = !escaped && next == \"\\\\\";\n }\n }\n\n // Used as scratch variables to communicate multiple values without\n // consing up tons of objects.\n var type, content;\n function ret(tp, style, cont) {\n type = tp; content = cont;\n return style;\n }\n function tokenBase(stream, state) {\n var ch = stream.next();\n if (ch == '\"' || ch == \"'\") {\n state.tokenize = tokenString(ch);\n return state.tokenize(stream, state);\n } else if (ch == \".\" && stream.match(/^\\d+(?:[eE][+\\-]?\\d+)?/)) {\n return ret(\"number\", \"number\");\n } else if (ch == \".\" && stream.match(\"..\")) {\n return ret(\"spread\", \"meta\");\n } else if (/[\\[\\]{}\\(\\),;\\:\\.]/.test(ch)) {\n return ret(ch);\n } else if (ch == \"=\" && stream.eat(\">\")) {\n return ret(\"=>\", \"operator\");\n } else if (ch == \"0\" && stream.eat(/x/i)) {\n stream.eatWhile(/[\\da-f]/i);\n return ret(\"number\", \"number\");\n } else if (ch == \"0\" && stream.eat(/o/i)) {\n stream.eatWhile(/[0-7]/i);\n return ret(\"number\", \"number\");\n } else if (ch == \"0\" && stream.eat(/b/i)) {\n stream.eatWhile(/[01]/i);\n return ret(\"number\", \"number\");\n } else if (/\\d/.test(ch)) {\n stream.match(/^\\d*(?:\\.\\d*)?(?:[eE][+\\-]?\\d+)?/);\n return ret(\"number\", \"number\");\n } else if (ch == \"/\") {\n if (stream.eat(\"*\")) {\n state.tokenize = tokenComment;\n return tokenComment(stream, state);\n } else if (stream.eat(\"/\")) {\n stream.skipToEnd();\n return ret(\"comment\", \"comment\");\n } else if (expressionAllowed(stream, state, 1)) {\n readRegexp(stream);\n stream.match(/^\\b(([gimyu])(?![gimyu]*\\2))+\\b/);\n return ret(\"regexp\", \"string-2\");\n } else {\n stream.eatWhile(isOperatorChar);\n return ret(\"operator\", \"operator\", stream.current());\n }\n } else if (ch == \"`\") {\n state.tokenize = tokenQuasi;\n return tokenQuasi(stream, state);\n } else if (ch == \"#\") {\n stream.skipToEnd();\n return ret(\"error\", \"error\");\n } else if (isOperatorChar.test(ch)) {\n if (ch != \">\" || !state.lexical || state.lexical.type != \">\")\n stream.eatWhile(isOperatorChar);\n return ret(\"operator\", \"operator\", stream.current());\n } else if (wordRE.test(ch)) {\n stream.eatWhile(wordRE);\n var word = stream.current()\n if (state.lastType != \".\") {\n if (keywords.propertyIsEnumerable(word)) {\n var kw = keywords[word]\n return ret(kw.type, kw.style, word)\n }\n if (word == \"async\" && stream.match(/^\\s*[\\(\\w]/, false))\n return ret(\"async\", \"keyword\", word)\n }\n return ret(\"variable\", \"variable\", word)\n }\n }\n\n function tokenString(quote) {\n return function(stream, state) {\n var escaped = false, next;\n if (jsonldMode && stream.peek() == \"@\" && stream.match(isJsonldKeyword)){\n state.tokenize = tokenBase;\n return ret(\"jsonld-keyword\", \"meta\");\n }\n while ((next = stream.next()) != null) {\n if (next == quote && !escaped) break;\n escaped = !escaped && next == \"\\\\\";\n }\n if (!escaped) state.tokenize = tokenBase;\n return ret(\"string\", \"string\");\n };\n }\n\n function tokenComment(stream, state) {\n var maybeEnd = false, ch;\n while (ch = stream.next()) {\n if (ch == \"/\" && maybeEnd) {\n state.tokenize = tokenBase;\n break;\n }\n maybeEnd = (ch == \"*\");\n }\n return ret(\"comment\", \"comment\");\n }\n\n function tokenQuasi(stream, state) {\n var escaped = false, next;\n while ((next = stream.next()) != null) {\n if (!escaped && (next == \"`\" || next == \"$\" && stream.eat(\"{\"))) {\n state.tokenize = tokenBase;\n break;\n }\n escaped = !escaped && next == \"\\\\\";\n }\n return ret(\"quasi\", \"string-2\", stream.current());\n }\n\n var brackets = \"([{}])\";\n // This is a crude lookahead trick to try and notice that we're\n // parsing the argument patterns for a fat-arrow function before we\n // actually hit the arrow token. It only works if the arrow is on\n // the same line as the arguments and there's no strange noise\n // (comments) in between. Fallback is to only notice when we hit the\n // arrow, and not declare the arguments as locals for the arrow\n // body.\n function findFatArrow(stream, state) {\n if (state.fatArrowAt) state.fatArrowAt = null;\n var arrow = stream.string.indexOf(\"=>\", stream.start);\n if (arrow < 0) return;\n\n if (isTS) { // Try to skip TypeScript return type declarations after the arguments\n var m = /:\\s*(?:\\w+(?:<[^>]*>|\\[\\])?|\\{[^}]*\\})\\s*$/.exec(stream.string.slice(stream.start, arrow))\n if (m) arrow = m.index\n }\n\n var depth = 0, sawSomething = false;\n for (var pos = arrow - 1; pos >= 0; --pos) {\n var ch = stream.string.charAt(pos);\n var bracket = brackets.indexOf(ch);\n if (bracket >= 0 && bracket < 3) {\n if (!depth) { ++pos; break; }\n if (--depth == 0) { if (ch == \"(\") sawSomething = true; break; }\n } else if (bracket >= 3 && bracket < 6) {\n ++depth;\n } else if (wordRE.test(ch)) {\n sawSomething = true;\n } else if (/[\"'\\/]/.test(ch)) {\n return;\n } else if (sawSomething && !depth) {\n ++pos;\n break;\n }\n }\n if (sawSomething && !depth) state.fatArrowAt = pos;\n }\n\n // Parser\n\n var atomicTypes = {\"atom\": true, \"number\": true, \"variable\": true, \"string\": true, \"regexp\": true, \"this\": true, \"jsonld-keyword\": true};\n\n function JSLexical(indented, column, type, align, prev, info) {\n this.indented = indented;\n this.column = column;\n this.type = type;\n this.prev = prev;\n this.info = info;\n if (align != null) this.align = align;\n }\n\n function inScope(state, varname) {\n for (var v = state.localVars; v; v = v.next)\n if (v.name == varname) return true;\n for (var cx = state.context; cx; cx = cx.prev) {\n for (var v = cx.vars; v; v = v.next)\n if (v.name == varname) return true;\n }\n }\n\n function parseJS(state, style, type, content, stream) {\n var cc = state.cc;\n // Communicate our context to the combinators.\n // (Less wasteful than consing up a hundred closures on every call.)\n cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;\n\n if (!state.lexical.hasOwnProperty(\"align\"))\n state.lexical.align = true;\n\n while(true) {\n var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;\n if (combinator(type, content)) {\n while(cc.length && cc[cc.length - 1].lex)\n cc.pop()();\n if (cx.marked) return cx.marked;\n if (type == \"variable\" && inScope(state, content)) return \"variable-2\";\n return style;\n }\n }\n }\n\n // Combinator utils\n\n var cx = {state: null, column: null, marked: null, cc: null};\n function pass() {\n for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);\n }\n function cont() {\n pass.apply(null, arguments);\n return true;\n }\n function register(varname) {\n function inList(list) {\n for (var v = list; v; v = v.next)\n if (v.name == varname) return true;\n return false;\n }\n var state = cx.state;\n cx.marked = \"def\";\n if (state.context) {\n if (inList(state.localVars)) return;\n state.localVars = {name: varname, next: state.localVars};\n } else {\n if (inList(state.globalVars)) return;\n if (parserConfig.globalVars)\n state.globalVars = {name: varname, next: state.globalVars};\n }\n }\n\n // Combinators\n\n var defaultVars = {name: \"this\", next: {name: \"arguments\"}};\n function pushcontext() {\n cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};\n cx.state.localVars = defaultVars;\n }\n function popcontext() {\n cx.state.localVars = cx.state.context.vars;\n cx.state.context = cx.state.context.prev;\n }\n function pushlex(type, info) {\n var result = function() {\n var state = cx.state, indent = state.indented;\n if (state.lexical.type == \"stat\") indent = state.lexical.indented;\n else for (var outer = state.lexical; outer && outer.type == \")\" && outer.align; outer = outer.prev)\n indent = outer.indented;\n state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);\n };\n result.lex = true;\n return result;\n }\n function poplex() {\n var state = cx.state;\n if (state.lexical.prev) {\n if (state.lexical.type == \")\")\n state.indented = state.lexical.indented;\n state.lexical = state.lexical.prev;\n }\n }\n poplex.lex = true;\n\n function expect(wanted) {\n function exp(type) {\n if (type == wanted) return cont();\n else if (wanted == \";\") return pass();\n else return cont(exp);\n };\n return exp;\n }\n\n function statement(type, value) {\n if (type == \"var\") return cont(pushlex(\"vardef\", value.length), vardef, expect(\";\"), poplex);\n if (type == \"keyword a\") return cont(pushlex(\"form\"), parenExpr, statement, poplex);\n if (type == \"keyword b\") return cont(pushlex(\"form\"), statement, poplex);\n if (type == \"{\") return cont(pushlex(\"}\"), block, poplex);\n if (type == \";\") return cont();\n if (type == \"if\") {\n if (cx.state.lexical.info == \"else\" && cx.state.cc[cx.state.cc.length - 1] == poplex)\n cx.state.cc.pop()();\n return cont(pushlex(\"form\"), parenExpr, statement, poplex, maybeelse);\n }\n if (type == \"function\") return cont(functiondef);\n if (type == \"for\") return cont(pushlex(\"form\"), forspec, statement, poplex);\n if (type == \"variable\") {\n if (isTS && value == \"type\") {\n cx.marked = \"keyword\"\n return cont(typeexpr, expect(\"operator\"), typeexpr, expect(\";\"));\n } else {\n return cont(pushlex(\"stat\"), maybelabel);\n }\n }\n if (type == \"switch\") return cont(pushlex(\"form\"), parenExpr, expect(\"{\"), pushlex(\"}\", \"switch\"),\n block, poplex, poplex);\n if (type == \"case\") return cont(expression, expect(\":\"));\n if (type == \"default\") return cont(expect(\":\"));\n if (type == \"catch\") return cont(pushlex(\"form\"), pushcontext, expect(\"(\"), funarg, expect(\")\"),\n statement, poplex, popcontext);\n if (type == \"class\") return cont(pushlex(\"form\"), className, poplex);\n if (type == \"export\") return cont(pushlex(\"stat\"), afterExport, poplex);\n if (type == \"import\") return cont(pushlex(\"stat\"), afterImport, poplex);\n if (type == \"module\") return cont(pushlex(\"form\"), pattern, expect(\"{\"), pushlex(\"}\"), block, poplex, poplex)\n if (type == \"async\") return cont(statement)\n if (value == \"@\") return cont(expression, statement)\n return pass(pushlex(\"stat\"), expression, expect(\";\"), poplex);\n }\n function expression(type) {\n return expressionInner(type, false);\n }\n function expressionNoComma(type) {\n return expressionInner(type, true);\n }\n function parenExpr(type) {\n if (type != \"(\") return pass()\n return cont(pushlex(\")\"), expression, expect(\")\"), poplex)\n }\n function expressionInner(type, noComma) {\n if (cx.state.fatArrowAt == cx.stream.start) {\n var body = noComma ? arrowBodyNoComma : arrowBody;\n if (type == \"(\") return cont(pushcontext, pushlex(\")\"), commasep(pattern, \")\"), poplex, expect(\"=>\"), body, popcontext);\n else if (type == \"variable\") return pass(pushcontext, pattern, expect(\"=>\"), body, popcontext);\n }\n\n var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;\n if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);\n if (type == \"function\") return cont(functiondef, maybeop);\n if (type == \"class\") return cont(pushlex(\"form\"), classExpression, poplex);\n if (type == \"keyword c\" || type == \"async\") return cont(noComma ? maybeexpressionNoComma : maybeexpression);\n if (type == \"(\") return cont(pushlex(\")\"), maybeexpression, expect(\")\"), poplex, maybeop);\n if (type == \"operator\" || type == \"spread\") return cont(noComma ? expressionNoComma : expression);\n if (type == \"[\") return cont(pushlex(\"]\"), arrayLiteral, poplex, maybeop);\n if (type == \"{\") return contCommasep(objprop, \"}\", null, maybeop);\n if (type == \"quasi\") return pass(quasi, maybeop);\n if (type == \"new\") return cont(maybeTarget(noComma));\n return cont();\n }\n function maybeexpression(type) {\n if (type.match(/[;\\}\\)\\],]/)) return pass();\n return pass(expression);\n }\n function maybeexpressionNoComma(type) {\n if (type.match(/[;\\}\\)\\],]/)) return pass();\n return pass(expressionNoComma);\n }\n\n function maybeoperatorComma(type, value) {\n if (type == \",\") return cont(expression);\n return maybeoperatorNoComma(type, value, false);\n }\n function maybeoperatorNoComma(type, value, noComma) {\n var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;\n var expr = noComma == false ? expression : expressionNoComma;\n if (type == \"=>\") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);\n if (type == \"operator\") {\n if (/\\+\\+|--/.test(value)) return cont(me);\n if (value == \"?\") return cont(expression, expect(\":\"), expr);\n return cont(expr);\n }\n if (type == \"quasi\") { return pass(quasi, me); }\n if (type == \";\") return;\n if (type == \"(\") return contCommasep(expressionNoComma, \")\", \"call\", me);\n if (type == \".\") return cont(property, me);\n if (type == \"[\") return cont(pushlex(\"]\"), maybeexpression, expect(\"]\"), poplex, me);\n if (isTS && value == \"as\") { cx.marked = \"keyword\"; return cont(typeexpr, me) }\n }\n function quasi(type, value) {\n if (type != \"quasi\") return pass();\n if (value.slice(value.length - 2) != \"${\") return cont(quasi);\n return cont(expression, continueQuasi);\n }\n function continueQuasi(type) {\n if (type == \"}\") {\n cx.marked = \"string-2\";\n cx.state.tokenize = tokenQuasi;\n return cont(quasi);\n }\n }\n function arrowBody(type) {\n findFatArrow(cx.stream, cx.state);\n return pass(type == \"{\" ? statement : expression);\n }\n function arrowBodyNoComma(type) {\n findFatArrow(cx.stream, cx.state);\n return pass(type == \"{\" ? statement : expressionNoComma);\n }\n function maybeTarget(noComma) {\n return function(type) {\n if (type == \".\") return cont(noComma ? targetNoComma : target);\n else return pass(noComma ? expressionNoComma : expression);\n };\n }\n function target(_, value) {\n if (value == \"target\") { cx.marked = \"keyword\"; return cont(maybeoperatorComma); }\n }\n function targetNoComma(_, value) {\n if (value == \"target\") { cx.marked = \"keyword\"; return cont(maybeoperatorNoComma); }\n }\n function maybelabel(type) {\n if (type == \":\") return cont(poplex, statement);\n return pass(maybeoperatorComma, expect(\";\"), poplex);\n }\n function property(type) {\n if (type == \"variable\") {cx.marked = \"property\"; return cont();}\n }\n function objprop(type, value) {\n if (type == \"async\") {\n cx.marked = \"property\";\n return cont(objprop);\n } else if (type == \"variable\" || cx.style == \"keyword\") {\n cx.marked = \"property\";\n if (value == \"get\" || value == \"set\") return cont(getterSetter);\n return cont(afterprop);\n } else if (type == \"number\" || type == \"string\") {\n cx.marked = jsonldMode ? \"property\" : (cx.style + \" property\");\n return cont(afterprop);\n } else if (type == \"jsonld-keyword\") {\n return cont(afterprop);\n } else if (type == \"modifier\") {\n return cont(objprop)\n } else if (type == \"[\") {\n return cont(expression, expect(\"]\"), afterprop);\n } else if (type == \"spread\") {\n return cont(expression, afterprop);\n } else if (type == \":\") {\n return pass(afterprop)\n }\n }\n function getterSetter(type) {\n if (type != \"variable\") return pass(afterprop);\n cx.marked = \"property\";\n return cont(functiondef);\n }\n function afterprop(type) {\n if (type == \":\") return cont(expressionNoComma);\n if (type == \"(\") return pass(functiondef);\n }\n function commasep(what, end, sep) {\n function proceed(type, value) {\n if (sep ? sep.indexOf(type) > -1 : type == \",\") {\n var lex = cx.state.lexical;\n if (lex.info == \"call\") lex.pos = (lex.pos || 0) + 1;\n return cont(function(type, value) {\n if (type == end || value == end) return pass()\n return pass(what)\n }, proceed);\n }\n if (type == end || value == end) return cont();\n return cont(expect(end));\n }\n return function(type, value) {\n if (type == end || value == end) return cont();\n return pass(what, proceed);\n };\n }\n function contCommasep(what, end, info) {\n for (var i = 3; i < arguments.length; i++)\n cx.cc.push(arguments[i]);\n return cont(pushlex(end, info), commasep(what, end), poplex);\n }\n function block(type) {\n if (type == \"}\") return cont();\n return pass(statement, block);\n }\n function maybetype(type, value) {\n if (isTS) {\n if (type == \":\") return cont(typeexpr);\n if (value == \"?\") return cont(maybetype);\n }\n }\n function typeexpr(type) {\n if (type == \"variable\") {cx.marked = \"type\"; return cont(afterType);}\n if (type == \"string\" || type == \"number\" || type == \"atom\") return cont(afterType);\n if (type == \"{\") return cont(pushlex(\"}\"), commasep(typeprop, \"}\", \",;\"), poplex, afterType)\n if (type == \"(\") return cont(commasep(typearg, \")\"), maybeReturnType)\n }\n function maybeReturnType(type) {\n if (type == \"=>\") return cont(typeexpr)\n }\n function typeprop(type, value) {\n if (type == \"variable\" || cx.style == \"keyword\") {\n cx.marked = \"property\"\n return cont(typeprop)\n } else if (value == \"?\") {\n return cont(typeprop)\n } else if (type == \":\") {\n return cont(typeexpr)\n } else if (type == \"[\") {\n return cont(expression, maybetype, expect(\"]\"), typeprop)\n }\n }\n function typearg(type) {\n if (type == \"variable\") return cont(typearg)\n else if (type == \":\") return cont(typeexpr)\n }\n function afterType(type, value) {\n if (value == \"<\") return cont(pushlex(\">\"), commasep(typeexpr, \">\"), poplex, afterType)\n if (value == \"|\" || type == \".\") return cont(typeexpr)\n if (type == \"[\") return cont(expect(\"]\"), afterType)\n if (value == \"extends\") return cont(typeexpr)\n }\n function vardef() {\n return pass(pattern, maybetype, maybeAssign, vardefCont);\n }\n function pattern(type, value) {\n if (type == \"modifier\") return cont(pattern)\n if (type == \"variable\") { register(value); return cont(); }\n if (type == \"spread\") return cont(pattern);\n if (type == \"[\") return contCommasep(pattern, \"]\");\n if (type == \"{\") return contCommasep(proppattern, \"}\");\n }\n function proppattern(type, value) {\n if (type == \"variable\" && !cx.stream.match(/^\\s*:/, false)) {\n register(value);\n return cont(maybeAssign);\n }\n if (type == \"variable\") cx.marked = \"property\";\n if (type == \"spread\") return cont(pattern);\n if (type == \"}\") return pass();\n return cont(expect(\":\"), pattern, maybeAssign);\n }\n function maybeAssign(_type, value) {\n if (value == \"=\") return cont(expressionNoComma);\n }\n function vardefCont(type) {\n if (type == \",\") return cont(vardef);\n }\n function maybeelse(type, value) {\n if (type == \"keyword b\" && value == \"else\") return cont(pushlex(\"form\", \"else\"), statement, poplex);\n }\n function forspec(type) {\n if (type == \"(\") return cont(pushlex(\")\"), forspec1, expect(\")\"), poplex);\n }\n function forspec1(type) {\n if (type == \"var\") return cont(vardef, expect(\";\"), forspec2);\n if (type == \";\") return cont(forspec2);\n if (type == \"variable\") return cont(formaybeinof);\n return pass(expression, expect(\";\"), forspec2);\n }\n function formaybeinof(_type, value) {\n if (value == \"in\" || value == \"of\") { cx.marked = \"keyword\"; return cont(expression); }\n return cont(maybeoperatorComma, forspec2);\n }\n function forspec2(type, value) {\n if (type == \";\") return cont(forspec3);\n if (value == \"in\" || value == \"of\") { cx.marked = \"keyword\"; return cont(expression); }\n return pass(expression, expect(\";\"), forspec3);\n }\n function forspec3(type) {\n if (type != \")\") cont(expression);\n }\n function functiondef(type, value) {\n if (value == \"*\") {cx.marked = \"keyword\"; return cont(functiondef);}\n if (type == \"variable\") {register(value); return cont(functiondef);}\n if (type == \"(\") return cont(pushcontext, pushlex(\")\"), commasep(funarg, \")\"), poplex, maybetype, statement, popcontext);\n if (isTS && value == \"<\") return cont(pushlex(\">\"), commasep(typeexpr, \">\"), poplex, functiondef)\n }\n function funarg(type) {\n if (type == \"spread\") return cont(funarg);\n return pass(pattern, maybetype, maybeAssign);\n }\n function classExpression(type, value) {\n // Class expressions may have an optional name.\n if (type == \"variable\") return className(type, value);\n return classNameAfter(type, value);\n }\n function className(type, value) {\n if (type == \"variable\") {register(value); return cont(classNameAfter);}\n }\n function classNameAfter(type, value) {\n if (value == \"<\") return cont(pushlex(\">\"), commasep(typeexpr, \">\"), poplex, classNameAfter)\n if (value == \"extends\" || value == \"implements\" || (isTS && type == \",\"))\n return cont(isTS ? typeexpr : expression, classNameAfter);\n if (type == \"{\") return cont(pushlex(\"}\"), classBody, poplex);\n }\n function classBody(type, value) {\n if (type == \"variable\" || cx.style == \"keyword\") {\n if ((value == \"async\" || value == \"static\" || value == \"get\" || value == \"set\" ||\n (isTS && (value == \"public\" || value == \"private\" || value == \"protected\" || value == \"readonly\" || value == \"abstract\"))) &&\n cx.stream.match(/^\\s+[\\w$\\xa1-\\uffff]/, false)) {\n cx.marked = \"keyword\";\n return cont(classBody);\n }\n cx.marked = \"property\";\n return cont(isTS ? classfield : functiondef, classBody);\n }\n if (type == \"[\")\n return cont(expression, expect(\"]\"), isTS ? classfield : functiondef, classBody)\n if (value == \"*\") {\n cx.marked = \"keyword\";\n return cont(classBody);\n }\n if (type == \";\") return cont(classBody);\n if (type == \"}\") return cont();\n if (value == \"@\") return cont(expression, classBody)\n }\n function classfield(type, value) {\n if (value == \"?\") return cont(classfield)\n if (type == \":\") return cont(typeexpr, maybeAssign)\n if (value == \"=\") return cont(expressionNoComma)\n return pass(functiondef)\n }\n function afterExport(type, value) {\n if (value == \"*\") { cx.marked = \"keyword\"; return cont(maybeFrom, expect(\";\")); }\n if (value == \"default\") { cx.marked = \"keyword\"; return cont(expression, expect(\";\")); }\n if (type == \"{\") return cont(commasep(exportField, \"}\"), maybeFrom, expect(\";\"));\n return pass(statement);\n }\n function exportField(type, value) {\n if (value == \"as\") { cx.marked = \"keyword\"; return cont(expect(\"variable\")); }\n if (type == \"variable\") return pass(expressionNoComma, exportField);\n }\n function afterImport(type) {\n if (type == \"string\") return cont();\n return pass(importSpec, maybeMoreImports, maybeFrom);\n }\n function importSpec(type, value) {\n if (type == \"{\") return contCommasep(importSpec, \"}\");\n if (type == \"variable\") register(value);\n if (value == \"*\") cx.marked = \"keyword\";\n return cont(maybeAs);\n }\n function maybeMoreImports(type) {\n if (type == \",\") return cont(importSpec, maybeMoreImports)\n }\n function maybeAs(_type, value) {\n if (value == \"as\") { cx.marked = \"keyword\"; return cont(importSpec); }\n }\n function maybeFrom(_type, value) {\n if (value == \"from\") { cx.marked = \"keyword\"; return cont(expression); }\n }\n function arrayLiteral(type) {\n if (type == \"]\") return cont();\n return pass(commasep(expressionNoComma, \"]\"));\n }\n\n function isContinuedStatement(state, textAfter) {\n return state.lastType == \"operator\" || state.lastType == \",\" ||\n isOperatorChar.test(textAfter.charAt(0)) ||\n /[,.]/.test(textAfter.charAt(0));\n }\n\n // Interface\n\n return {\n startState: function(basecolumn) {\n var state = {\n tokenize: tokenBase,\n lastType: \"sof\",\n cc: [],\n lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, \"block\", false),\n localVars: parserConfig.localVars,\n context: parserConfig.localVars && {vars: parserConfig.localVars},\n indented: basecolumn || 0\n };\n if (parserConfig.globalVars && typeof parserConfig.globalVars == \"object\")\n state.globalVars = parserConfig.globalVars;\n return state;\n },\n\n token: function(stream, state) {\n if (stream.sol()) {\n if (!state.lexical.hasOwnProperty(\"align\"))\n state.lexical.align = false;\n state.indented = stream.indentation();\n findFatArrow(stream, state);\n }\n if (state.tokenize != tokenComment && stream.eatSpace()) return null;\n var style = state.tokenize(stream, state);\n if (type == \"comment\") return style;\n state.lastType = type == \"operator\" && (content == \"++\" || content == \"--\") ? \"incdec\" : type;\n return parseJS(state, style, type, content, stream);\n },\n\n indent: function(state, textAfter) {\n if (state.tokenize == tokenComment) return CodeMirror.Pass;\n if (state.tokenize != tokenBase) return 0;\n var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, top\n // Kludge to prevent 'maybelse' from blocking lexical scope pops\n if (!/^\\s*else\\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {\n var c = state.cc[i];\n if (c == poplex) lexical = lexical.prev;\n else if (c != maybeelse) break;\n }\n while ((lexical.type == \"stat\" || lexical.type == \"form\") &&\n (firstChar == \"}\" || ((top = state.cc[state.cc.length - 1]) &&\n (top == maybeoperatorComma || top == maybeoperatorNoComma) &&\n !/^[,\\.=+\\-*:?[\\(]/.test(textAfter))))\n lexical = lexical.prev;\n if (statementIndent && lexical.type == \")\" && lexical.prev.type == \"stat\")\n lexical = lexical.prev;\n var type = lexical.type, closing = firstChar == type;\n\n if (type == \"vardef\") return lexical.indented + (state.lastType == \"operator\" || state.lastType == \",\" ? lexical.info + 1 : 0);\n else if (type == \"form\" && firstChar == \"{\") return lexical.indented;\n else if (type == \"form\") return lexical.indented + indentUnit;\n else if (type == \"stat\")\n return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);\n else if (lexical.info == \"switch\" && !closing && parserConfig.doubleIndentSwitch != false)\n return lexical.indented + (/^(?:case|default)\\b/.test(textAfter) ? indentUnit : 2 * indentUnit);\n else if (lexical.align) return lexical.column + (closing ? 0 : 1);\n else return lexical.indented + (closing ? 0 : indentUnit);\n },\n\n electricInput: /^\\s*(?:case .*?:|default:|\\{|\\})$/,\n blockCommentStart: jsonMode ? null : \"/*\",\n blockCommentEnd: jsonMode ? null : \"*/\",\n lineComment: jsonMode ? null : \"//\",\n fold: \"brace\",\n closeBrackets: \"()[]{}''\\\"\\\"``\",\n\n helperType: jsonMode ? \"json\" : \"javascript\",\n jsonldMode: jsonldMode,\n jsonMode: jsonMode,\n\n expressionAllowed: expressionAllowed,\n skipExpression: function(state) {\n var top = state.cc[state.cc.length - 1]\n if (top == expression || top == expressionNoComma) state.cc.pop()\n }\n };\n});\n\nCodeMirror.registerHelper(\"wordChars\", \"javascript\", /[\\w$]/);\n\nCodeMirror.defineMIME(\"text/javascript\", \"javascript\");\nCodeMirror.defineMIME(\"text/ecmascript\", \"javascript\");\nCodeMirror.defineMIME(\"application/javascript\", \"javascript\");\nCodeMirror.defineMIME(\"application/x-javascript\", \"javascript\");\nCodeMirror.defineMIME(\"application/ecmascript\", \"javascript\");\nCodeMirror.defineMIME(\"application/json\", {name: \"javascript\", json: true});\nCodeMirror.defineMIME(\"application/x-json\", {name: \"javascript\", json: true});\nCodeMirror.defineMIME(\"application/ld+json\", {name: \"javascript\", jsonld: true});\nCodeMirror.defineMIME(\"text/typescript\", { name: \"javascript\", typescript: true });\nCodeMirror.defineMIME(\"application/typescript\", { name: \"javascript\", typescript: true });\n\n});" }, { "path": "docs/editor/scripts/codemirror.js", "content": "// CodeMirror, copyright (c) by Marijn Haverbeke and others\n// Distributed under an MIT license: http://codemirror.net/LICENSE\n\n// This is CodeMirror (http://codemirror.net), a code editor\n// implemented in JavaScript on top of the browser's DOM.\n//\n// You can find some technical background for some of the code below\n// at http://marijnhaverbeke.nl/blog/#cm-internals .\n\n(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n typeof define === 'function' && define.amd ? define(factory) :\n (global.CodeMirror = factory());\n}(this, (function () { 'use strict';\n\n// Kludges for bugs and behavior differences that can't be feature\n// detected are enabled based on userAgent etc sniffing.\nvar userAgent = navigator.userAgent\nvar platform = navigator.platform\n\nvar gecko = /gecko\\/\\d/i.test(userAgent)\nvar ie_upto10 = /MSIE \\d/.test(userAgent)\nvar ie_11up = /Trident\\/(?:[7-9]|\\d{2,})\\..*rv:(\\d+)/.exec(userAgent)\nvar edge = /Edge\\/(\\d+)/.exec(userAgent)\nvar ie = ie_upto10 || ie_11up || edge\nvar ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1])\nvar webkit = !edge && /WebKit\\//.test(userAgent)\nvar qtwebkit = webkit && /Qt\\/\\d+\\.\\d+/.test(userAgent)\nvar chrome = !edge && /Chrome\\//.test(userAgent)\nvar presto = /Opera\\//.test(userAgent)\nvar safari = /Apple Computer/.test(navigator.vendor)\nvar mac_geMountainLion = /Mac OS X 1\\d\\D([8-9]|\\d\\d)\\D/.test(userAgent)\nvar phantom = /PhantomJS/.test(userAgent)\n\nvar ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\\/\\w+/.test(userAgent)\nvar android = /Android/.test(userAgent)\n// This is woefully incomplete. Suggestions for alternative methods welcome.\nvar mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent)\nvar mac = ios || /Mac/.test(platform)\nvar chromeOS = /\\bCrOS\\b/.test(userAgent)\nvar windows = /win/i.test(platform)\n\nvar presto_version = presto && userAgent.match(/Version\\/(\\d*\\.\\d*)/)\nif (presto_version) { presto_version = Number(presto_version[1]) }\nif (presto_version && presto_version >= 15) { presto = false; webkit = true }\n// Some browsers use the wrong event properties to signal cmd/ctrl on OS X\nvar flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11))\nvar captureRightClick = gecko || (ie && ie_version >= 9)\n\nfunction classTest(cls) { return new RegExp(\"(^|\\\\s)\" + cls + \"(?:$|\\\\s)\\\\s*\") }\n\nvar rmClass = function(node, cls) {\n var current = node.className\n var match = classTest(cls).exec(current)\n if (match) {\n var after = current.slice(match.index + match[0].length)\n node.className = current.slice(0, match.index) + (after ? match[1] + after : \"\")\n }\n}\n\nfunction removeChildren(e) {\n for (var count = e.childNodes.length; count > 0; --count)\n { e.removeChild(e.firstChild) }\n return e\n}\n\nfunction removeChildrenAndAdd(parent, e) {\n return removeChildren(parent).appendChild(e)\n}\n\nfunction elt(tag, content, className, style) {\n var e = document.createElement(tag)\n if (className) { e.className = className }\n if (style) { e.style.cssText = style }\n if (typeof content == \"string\") { e.appendChild(document.createTextNode(content)) }\n else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]) } }\n return e\n}\n// wrapper for elt, which removes the elt from the accessibility tree\nfunction eltP(tag, content, className, style) {\n var e = elt(tag, content, className, style)\n e.setAttribute(\"role\", \"presentation\")\n return e\n}\n\nvar range\nif (document.createRange) { range = function(node, start, end, endNode) {\n var r = document.createRange()\n r.setEnd(endNode || node, end)\n r.setStart(node, start)\n return r\n} }\nelse { range = function(node, start, end) {\n var r = document.body.createTextRange()\n try { r.moveToElementText(node.parentNode) }\n catch(e) { return r }\n r.collapse(true)\n r.moveEnd(\"character\", end)\n r.moveStart(\"character\", start)\n return r\n} }\n\nfunction contains(parent, child) {\n if (child.nodeType == 3) // Android browser always returns false when child is a textnode\n { child = child.parentNode }\n if (parent.contains)\n { return parent.contains(child) }\n do {\n if (child.nodeType == 11) { child = child.host }\n if (child == parent) { return true }\n } while (child = child.parentNode)\n}\n\nfunction activeElt() {\n // IE and Edge may throw an \"Unspecified Error\" when accessing document.activeElement.\n // IE < 10 will throw when accessed while the page is loading or in an iframe.\n // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.\n var activeElement\n try {\n activeElement = document.activeElement\n } catch(e) {\n activeElement = document.body || null\n }\n while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)\n { activeElement = activeElement.shadowRoot.activeElement }\n return activeElement\n}\n\nfunction addClass(node, cls) {\n var current = node.className\n if (!classTest(cls).test(current)) { node.className += (current ? \" \" : \"\") + cls }\n}\nfunction joinClasses(a, b) {\n var as = a.split(\" \")\n for (var i = 0; i < as.length; i++)\n { if (as[i] && !classTest(as[i]).test(b)) { b += \" \" + as[i] } }\n return b\n}\n\nvar selectInput = function(node) { node.select() }\nif (ios) // Mobile Safari apparently has a bug where select() is broken.\n { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length } }\nelse if (ie) // Suppress mysterious IE10 errors\n { selectInput = function(node) { try { node.select() } catch(_e) {} } }\n\nfunction bind(f) {\n var args = Array.prototype.slice.call(arguments, 1)\n return function(){return f.apply(null, args)}\n}\n\nfunction copyObj(obj, target, overwrite) {\n if (!target) { target = {} }\n for (var prop in obj)\n { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))\n { target[prop] = obj[prop] } }\n return target\n}\n\n// Counts the column offset in a string, taking tabs into account.\n// Used mostly to find indentation.\nfunction countColumn(string, end, tabSize, startIndex, startValue) {\n if (end == null) {\n end = string.search(/[^\\s\\u00a0]/)\n if (end == -1) { end = string.length }\n }\n for (var i = startIndex || 0, n = startValue || 0;;) {\n var nextTab = string.indexOf(\"\\t\", i)\n if (nextTab < 0 || nextTab >= end)\n { return n + (end - i) }\n n += nextTab - i\n n += tabSize - (n % tabSize)\n i = nextTab + 1\n }\n}\n\nvar Delayed = function() {this.id = null};\nDelayed.prototype.set = function (ms, f) {\n clearTimeout(this.id)\n this.id = setTimeout(f, ms)\n};\n\nfunction indexOf(array, elt) {\n for (var i = 0; i < array.length; ++i)\n { if (array[i] == elt) { return i } }\n return -1\n}\n\n// Number of pixels added to scroller and sizer to hide scrollbar\nvar scrollerGap = 30\n\n// Returned or thrown by various protocols to signal 'I'm not\n// handling this'.\nvar Pass = {toString: function(){return \"CodeMirror.Pass\"}}\n\n// Reused option objects for setSelection & friends\nvar sel_dontScroll = {scroll: false};\nvar sel_mouse = {origin: \"*mouse\"};\nvar sel_move = {origin: \"+move\"};\n// The inverse of countColumn -- find the offset that corresponds to\n// a particular column.\nfunction findColumn(string, goal, tabSize) {\n for (var pos = 0, col = 0;;) {\n var nextTab = string.indexOf(\"\\t\", pos)\n if (nextTab == -1) { nextTab = string.length }\n var skipped = nextTab - pos\n if (nextTab == string.length || col + skipped >= goal)\n { return pos + Math.min(skipped, goal - col) }\n col += nextTab - pos\n col += tabSize - (col % tabSize)\n pos = nextTab + 1\n if (col >= goal) { return pos }\n }\n}\n\nvar spaceStrs = [\"\"]\nfunction spaceStr(n) {\n while (spaceStrs.length <= n)\n { spaceStrs.push(lst(spaceStrs) + \" \") }\n return spaceStrs[n]\n}\n\nfunction lst(arr) { return arr[arr.length-1] }\n\nfunction map(array, f) {\n var out = []\n for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i) }\n return out\n}\n\nfunction insertSorted(array, value, score) {\n var pos = 0, priority = score(value)\n while (pos < array.length && score(array[pos]) <= priority) { pos++ }\n array.splice(pos, 0, value)\n}\n\nfunction nothing() {}\n\nfunction createObj(base, props) {\n var inst\n if (Object.create) {\n inst = Object.create(base)\n } else {\n nothing.prototype = base\n inst = new nothing()\n }\n if (props) { copyObj(props, inst) }\n return inst\n}\n\nvar nonASCIISingleCaseWordChar = /[\\u00df\\u0587\\u0590-\\u05f4\\u0600-\\u06ff\\u3040-\\u309f\\u30a0-\\u30ff\\u3400-\\u4db5\\u4e00-\\u9fcc\\uac00-\\ud7af]/\nfunction isWordCharBasic(ch) {\n return /\\w/.test(ch) || ch > \"\\x80\" &&\n (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))\n}\nfunction isWordChar(ch, helper) {\n if (!helper) { return isWordCharBasic(ch) }\n if (helper.source.indexOf(\"\\\\w\") > -1 && isWordCharBasic(ch)) { return true }\n return helper.test(ch)\n}\n\nfunction isEmpty(obj) {\n for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }\n return true\n}\n\n// Extending unicode characters. A series of a non-extending char +\n// any number of extending chars is treated as a single unit as far\n// as editing and measuring is concerned. This is not fully correct,\n// since some scripts/fonts/browsers also treat other configurations\n// of code points as a group.\nvar extendingChars = /[\\u0300-\\u036f\\u0483-\\u0489\\u0591-\\u05bd\\u05bf\\u05c1\\u05c2\\u05c4\\u05c5\\u05c7\\u0610-\\u061a\\u064b-\\u065e\\u0670\\u06d6-\\u06dc\\u06de-\\u06e4\\u06e7\\u06e8\\u06ea-\\u06ed\\u0711\\u0730-\\u074a\\u07a6-\\u07b0\\u07eb-\\u07f3\\u0816-\\u0819\\u081b-\\u0823\\u0825-\\u0827\\u0829-\\u082d\\u0900-\\u0902\\u093c\\u0941-\\u0948\\u094d\\u0951-\\u0955\\u0962\\u0963\\u0981\\u09bc\\u09be\\u09c1-\\u09c4\\u09cd\\u09d7\\u09e2\\u09e3\\u0a01\\u0a02\\u0a3c\\u0a41\\u0a42\\u0a47\\u0a48\\u0a4b-\\u0a4d\\u0a51\\u0a70\\u0a71\\u0a75\\u0a81\\u0a82\\u0abc\\u0ac1-\\u0ac5\\u0ac7\\u0ac8\\u0acd\\u0ae2\\u0ae3\\u0b01\\u0b3c\\u0b3e\\u0b3f\\u0b41-\\u0b44\\u0b4d\\u0b56\\u0b57\\u0b62\\u0b63\\u0b82\\u0bbe\\u0bc0\\u0bcd\\u0bd7\\u0c3e-\\u0c40\\u0c46-\\u0c48\\u0c4a-\\u0c4d\\u0c55\\u0c56\\u0c62\\u0c63\\u0cbc\\u0cbf\\u0cc2\\u0cc6\\u0ccc\\u0ccd\\u0cd5\\u0cd6\\u0ce2\\u0ce3\\u0d3e\\u0d41-\\u0d44\\u0d4d\\u0d57\\u0d62\\u0d63\\u0dca\\u0dcf\\u0dd2-\\u0dd4\\u0dd6\\u0ddf\\u0e31\\u0e34-\\u0e3a\\u0e47-\\u0e4e\\u0eb1\\u0eb4-\\u0eb9\\u0ebb\\u0ebc\\u0ec8-\\u0ecd\\u0f18\\u0f19\\u0f35\\u0f37\\u0f39\\u0f71-\\u0f7e\\u0f80-\\u0f84\\u0f86\\u0f87\\u0f90-\\u0f97\\u0f99-\\u0fbc\\u0fc6\\u102d-\\u1030\\u1032-\\u1037\\u1039\\u103a\\u103d\\u103e\\u1058\\u1059\\u105e-\\u1060\\u1071-\\u1074\\u1082\\u1085\\u1086\\u108d\\u109d\\u135f\\u1712-\\u1714\\u1732-\\u1734\\u1752\\u1753\\u1772\\u1773\\u17b7-\\u17bd\\u17c6\\u17c9-\\u17d3\\u17dd\\u180b-\\u180d\\u18a9\\u1920-\\u1922\\u1927\\u1928\\u1932\\u1939-\\u193b\\u1a17\\u1a18\\u1a56\\u1a58-\\u1a5e\\u1a60\\u1a62\\u1a65-\\u1a6c\\u1a73-\\u1a7c\\u1a7f\\u1b00-\\u1b03\\u1b34\\u1b36-\\u1b3a\\u1b3c\\u1b42\\u1b6b-\\u1b73\\u1b80\\u1b81\\u1ba2-\\u1ba5\\u1ba8\\u1ba9\\u1c2c-\\u1c33\\u1c36\\u1c37\\u1cd0-\\u1cd2\\u1cd4-\\u1ce0\\u1ce2-\\u1ce8\\u1ced\\u1dc0-\\u1de6\\u1dfd-\\u1dff\\u200c\\u200d\\u20d0-\\u20f0\\u2cef-\\u2cf1\\u2de0-\\u2dff\\u302a-\\u302f\\u3099\\u309a\\ua66f-\\ua672\\ua67c\\ua67d\\ua6f0\\ua6f1\\ua802\\ua806\\ua80b\\ua825\\ua826\\ua8c4\\ua8e0-\\ua8f1\\ua926-\\ua92d\\ua947-\\ua951\\ua980-\\ua982\\ua9b3\\ua9b6-\\ua9b9\\ua9bc\\uaa29-\\uaa2e\\uaa31\\uaa32\\uaa35\\uaa36\\uaa43\\uaa4c\\uaab0\\uaab2-\\uaab4\\uaab7\\uaab8\\uaabe\\uaabf\\uaac1\\uabe5\\uabe8\\uabed\\udc00-\\udfff\\ufb1e\\ufe00-\\ufe0f\\ufe20-\\ufe26\\uff9e\\uff9f]/\nfunction isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }\n\n// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.\nfunction skipExtendingChars(str, pos, dir) {\n while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir }\n return pos\n}\n\n// Returns the value from the range [`from`; `to`] that satisfies\n// `pred` and is closest to `from`. Assumes that at least `to` satisfies `pred`.\nfunction findFirst(pred, from, to) {\n for (;;) {\n if (Math.abs(from - to) <= 1) { return pred(from) ? from : to }\n var mid = Math.floor((from + to) / 2)\n if (pred(mid)) { to = mid }\n else { from = mid }\n }\n}\n\n// The display handles the DOM integration, both for input reading\n// and content drawing. It holds references to DOM nodes and\n// display-related state.\n\nfunction Display(place, doc, input) {\n var d = this\n this.input = input\n\n // Covers bottom-right square when both scrollbars are present.\n d.scrollbarFiller = elt(\"div\", null, \"CodeMirror-scrollbar-filler\")\n d.scrollbarFiller.setAttribute(\"cm-not-content\", \"true\")\n // Covers bottom of gutter when coverGutterNextToScrollbar is on\n // and h scrollbar is present.\n d.gutterFiller = elt(\"div\", null, \"CodeMirror-gutter-filler\")\n d.gutterFiller.setAttribute(\"cm-not-content\", \"true\")\n // Will contain the actual code, positioned to cover the viewport.\n d.lineDiv = eltP(\"div\", null, \"CodeMirror-code\")\n // Elements are added to these to represent selection and cursors.\n d.selectionDiv = elt(\"div\", null, null, \"position: relative; z-index: 1\")\n d.cursorDiv = elt(\"div\", null, \"CodeMirror-cursors\")\n // A visibility: hidden element used to find the size of things.\n d.measure = elt(\"div\", null, \"CodeMirror-measure\")\n // When lines outside of the viewport are measured, they are drawn in this.\n d.lineMeasure = elt(\"div\", null, \"CodeMirror-measure\")\n // Wraps everything that needs to exist inside the vertically-padded coordinate system\n d.lineSpace = eltP(\"div\", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],\n null, \"position: relative; outline: none\")\n var lines = eltP(\"div\", [d.lineSpace], \"CodeMirror-lines\")\n // Moved around its parent to cover visible view.\n d.mover = elt(\"div\", [lines], null, \"position: relative\")\n // Set to the height of the document, allowing scrolling.\n d.sizer = elt(\"div\", [d.mover], \"CodeMirror-sizer\")\n d.sizerWidth = null\n // Behavior of elts with overflow: auto and padding is\n // inconsistent across browsers. This is used to ensure the\n // scrollable area is big enough.\n d.heightForcer = elt(\"div\", null, null, \"position: absolute; height: \" + scrollerGap + \"px; width: 1px;\")\n // Will contain the gutters, if any.\n d.gutters = elt(\"div\", null, \"CodeMirror-gutters\")\n d.lineGutter = null\n // Actual scrollable element.\n d.scroller = elt(\"div\", [d.sizer, d.heightForcer, d.gutters], \"CodeMirror-scroll\")\n d.scroller.setAttribute(\"tabIndex\", \"-1\")\n // The element in which the editor lives.\n d.wrapper = elt(\"div\", [d.scrollbarFiller, d.gutterFiller, d.scroller], \"CodeMirror\")\n\n // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)\n if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0 }\n if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true }\n\n if (place) {\n if (place.appendChild) { place.appendChild(d.wrapper) }\n else { place(d.wrapper) }\n }\n\n // Current rendered range (may be bigger than the view window).\n d.viewFrom = d.viewTo = doc.first\n d.reportedViewFrom = d.reportedViewTo = doc.first\n // Information about the rendered lines.\n d.view = []\n d.renderedView = null\n // Holds info about a single rendered line when it was rendered\n // for measurement, while not in view.\n d.externalMeasured = null\n // Empty space (in pixels) above the view\n d.viewOffset = 0\n d.lastWrapHeight = d.lastWrapWidth = 0\n d.updateLineNumbers = null\n\n d.nativeBarWidth = d.barHeight = d.barWidth = 0\n d.scrollbarsClipped = false\n\n // Used to only resize the line number gutter when necessary (when\n // the amount of lines crosses a boundary that makes its width change)\n d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null\n // Set to true when a non-horizontal-scrolling line widget is\n // added. As an optimization, line widget aligning is skipped when\n // this is false.\n d.alignWidgets = false\n\n d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null\n\n // Tracks the maximum line length so that the horizontal scrollbar\n // can be kept static when scrolling.\n d.maxLine = null\n d.maxLineLength = 0\n d.maxLineChanged = false\n\n // Used for measuring wheel scrolling granularity\n d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null\n\n // True when shift is held down.\n d.shift = false\n\n // Used to track whether anything happened since the context menu\n // was opened.\n d.selForContextMenu = null\n\n d.activeTouch = null\n\n input.init(d)\n}\n\n// Find the line object corresponding to the given line number.\nfunction getLine(doc, n) {\n n -= doc.first\n if (n < 0 || n >= doc.size) { throw new Error(\"There is no line \" + (n + doc.first) + \" in the document.\") }\n var chunk = doc\n while (!chunk.lines) {\n for (var i = 0;; ++i) {\n var child = chunk.children[i], sz = child.chunkSize()\n if (n < sz) { chunk = child; break }\n n -= sz\n }\n }\n return chunk.lines[n]\n}\n\n// Get the part of a document between two positions, as an array of\n// strings.\nfunction getBetween(doc, start, end) {\n var out = [], n = start.line\n doc.iter(start.line, end.line + 1, function (line) {\n var text = line.text\n if (n == end.line) { text = text.slice(0, end.ch) }\n if (n == start.line) { text = text.slice(start.ch) }\n out.push(text)\n ++n\n })\n return out\n}\n// Get the lines between from and to, as array of strings.\nfunction getLines(doc, from, to) {\n var out = []\n doc.iter(from, to, function (line) { out.push(line.text) }) // iter aborts when callback returns truthy value\n return out\n}\n\n// Update the height of a line, propagating the height change\n// upwards to parent nodes.\nfunction updateLineHeight(line, height) {\n var diff = height - line.height\n if (diff) { for (var n = line; n; n = n.parent) { n.height += diff } }\n}\n\n// Given a line object, find its line number by walking up through\n// its parent links.\nfunction lineNo(line) {\n if (line.parent == null) { return null }\n var cur = line.parent, no = indexOf(cur.lines, line)\n for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {\n for (var i = 0;; ++i) {\n if (chunk.children[i] == cur) { break }\n no += chunk.children[i].chunkSize()\n }\n }\n return no + cur.first\n}\n\n// Find the line at the given vertical position, using the height\n// information in the document tree.\nfunction lineAtHeight(chunk, h) {\n var n = chunk.first\n outer: do {\n for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {\n var child = chunk.children[i$1], ch = child.height\n if (h < ch) { chunk = child; continue outer }\n h -= ch\n n += child.chunkSize()\n }\n return n\n } while (!chunk.lines)\n var i = 0\n for (; i < chunk.lines.length; ++i) {\n var line = chunk.lines[i], lh = line.height\n if (h < lh) { break }\n h -= lh\n }\n return n + i\n}\n\nfunction isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}\n\nfunction lineNumberFor(options, i) {\n return String(options.lineNumberFormatter(i + options.firstLineNumber))\n}\n\n// A Pos instance represents a position within the text.\nfunction Pos(line, ch, sticky) {\n if ( sticky === void 0 ) sticky = null;\n\n if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }\n this.line = line\n this.ch = ch\n this.sticky = sticky\n}\n\n// Compare two positions, return 0 if they are the same, a negative\n// number when a is less, and a positive number otherwise.\nfunction cmp(a, b) { return a.line - b.line || a.ch - b.ch }\n\nfunction equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }\n\nfunction copyPos(x) {return Pos(x.line, x.ch)}\nfunction maxPos(a, b) { return cmp(a, b) < 0 ? b : a }\nfunction minPos(a, b) { return cmp(a, b) < 0 ? a : b }\n\n// Most of the external API clips given positions to make sure they\n// actually exist within the document.\nfunction clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}\nfunction clipPos(doc, pos) {\n if (pos.line < doc.first) { return Pos(doc.first, 0) }\n var last = doc.first + doc.size - 1\n if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }\n return clipToLen(pos, getLine(doc, pos.line).text.length)\n}\nfunction clipToLen(pos, linelen) {\n var ch = pos.ch\n if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }\n else if (ch < 0) { return Pos(pos.line, 0) }\n else { return pos }\n}\nfunction clipPosArray(doc, array) {\n var out = []\n for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]) }\n return out\n}\n\n// Optimize some code when these features are not used.\nvar sawReadOnlySpans = false;\nvar sawCollapsedSpans = false;\nfunction seeReadOnlySpans() {\n sawReadOnlySpans = true\n}\n\nfunction seeCollapsedSpans() {\n sawCollapsedSpans = true\n}\n\n// TEXTMARKER SPANS\n\nfunction MarkedSpan(marker, from, to) {\n this.marker = marker\n this.from = from; this.to = to\n}\n\n// Search an array of spans for a span matching the given marker.\nfunction getMarkedSpanFor(spans, marker) {\n if (spans) { for (var i = 0; i < spans.length; ++i) {\n var span = spans[i]\n if (span.marker == marker) { return span }\n } }\n}\n// Remove a span from an array, returning undefined if no spans are\n// left (we don't store arrays for lines without spans).\nfunction removeMarkedSpan(spans, span) {\n var r\n for (var i = 0; i < spans.length; ++i)\n { if (spans[i] != span) { (r || (r = [])).push(spans[i]) } }\n return r\n}\n// Add a span to a line.\nfunction addMarkedSpan(line, span) {\n line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]\n span.marker.attachLine(line)\n}\n\n// Used for the algorithm that adjusts markers for a change in the\n// document. These functions cut an array of spans at a given\n// character position, returning an array of remaining chunks (or\n// undefined if nothing remains).\nfunction markedSpansBefore(old, startCh, isInsert) {\n var nw\n if (old) { for (var i = 0; i < old.length; ++i) {\n var span = old[i], marker = span.marker\n var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh)\n if (startsBefore || span.from == startCh && marker.type == \"bookmark\" && (!isInsert || !span.marker.insertLeft)) {\n var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)\n ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to))\n }\n } }\n return nw\n}\nfunction markedSpansAfter(old, endCh, isInsert) {\n var nw\n if (old) { for (var i = 0; i < old.length; ++i) {\n var span = old[i], marker = span.marker\n var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh)\n if (endsAfter || span.from == endCh && marker.type == \"bookmark\" && (!isInsert || span.marker.insertLeft)) {\n var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)\n ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,\n span.to == null ? null : span.to - endCh))\n }\n } }\n return nw\n}\n\n// Given a change object, compute the new set of marker spans that\n// cover the line in which the change took place. Removes spans\n// entirely within the change, reconnects spans belonging to the\n// same marker that appear on both sides of the change, and cuts off\n// spans partially within the change. Returns an array of span\n// arrays with one element for each line in (after) the change.\nfunction stretchSpansOverChange(doc, change) {\n if (change.full) { return null }\n var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans\n var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans\n if (!oldFirst && !oldLast) { return null }\n\n var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0\n // Get the spans that 'stick out' on both sides\n var first = markedSpansBefore(oldFirst, startCh, isInsert)\n var last = markedSpansAfter(oldLast, endCh, isInsert)\n\n // Next, merge those two ends\n var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0)\n if (first) {\n // Fix up .to properties of first\n for (var i = 0; i < first.length; ++i) {\n var span = first[i]\n if (span.to == null) {\n var found = getMarkedSpanFor(last, span.marker)\n if (!found) { span.to = startCh }\n else if (sameLine) { span.to = found.to == null ? null : found.to + offset }\n }\n }\n }\n if (last) {\n // Fix up .from in last (or move them into first in case of sameLine)\n for (var i$1 = 0; i$1 < last.length; ++i$1) {\n var span$1 = last[i$1]\n if (span$1.to != null) { span$1.to += offset }\n if (span$1.from == null) {\n var found$1 = getMarkedSpanFor(first, span$1.marker)\n if (!found$1) {\n span$1.from = offset\n if (sameLine) { (first || (first = [])).push(span$1) }\n }\n } else {\n span$1.from += offset\n if (sameLine) { (first || (first = [])).push(span$1) }\n }\n }\n }\n // Make sure we didn't create any zero-length spans\n if (first) { first = clearEmptySpans(first) }\n if (last && last != first) { last = clearEmptySpans(last) }\n\n var newMarkers = [first]\n if (!sameLine) {\n // Fill gap with whole-line-spans\n var gap = change.text.length - 2, gapMarkers\n if (gap > 0 && first)\n { for (var i$2 = 0; i$2 < first.length; ++i$2)\n { if (first[i$2].to == null)\n { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)) } } }\n for (var i$3 = 0; i$3 < gap; ++i$3)\n { newMarkers.push(gapMarkers) }\n newMarkers.push(last)\n }\n return newMarkers\n}\n\n// Remove spans that are empty and don't have a clearWhenEmpty\n// option of false.\nfunction clearEmptySpans(spans) {\n for (var i = 0; i < spans.length; ++i) {\n var span = spans[i]\n if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)\n { spans.splice(i--, 1) }\n }\n if (!spans.length) { return null }\n return spans\n}\n\n// Used to 'clip' out readOnly ranges when making a change.\nfunction removeReadOnlyRanges(doc, from, to) {\n var markers = null\n doc.iter(from.line, to.line + 1, function (line) {\n if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {\n var mark = line.markedSpans[i].marker\n if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))\n { (markers || (markers = [])).push(mark) }\n } }\n })\n if (!markers) { return null }\n var parts = [{from: from, to: to}]\n for (var i = 0; i < markers.length; ++i) {\n var mk = markers[i], m = mk.find(0)\n for (var j = 0; j < parts.length; ++j) {\n var p = parts[j]\n if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }\n var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to)\n if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)\n { newParts.push({from: p.from, to: m.from}) }\n if (dto > 0 || !mk.inclusiveRight && !dto)\n { newParts.push({from: m.to, to: p.to}) }\n parts.splice.apply(parts, newParts)\n j += newParts.length - 3\n }\n }\n return parts\n}\n\n// Connect or disconnect spans from a line.\nfunction detachMarkedSpans(line) {\n var spans = line.markedSpans\n if (!spans) { return }\n for (var i = 0; i < spans.length; ++i)\n { spans[i].marker.detachLine(line) }\n line.markedSpans = null\n}\nfunction attachMarkedSpans(line, spans) {\n if (!spans) { return }\n for (var i = 0; i < spans.length; ++i)\n { spans[i].marker.attachLine(line) }\n line.markedSpans = spans\n}\n\n// Helpers used when computing which overlapping collapsed span\n// counts as the larger one.\nfunction extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }\nfunction extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }\n\n// Returns a number indicating which of two overlapping collapsed\n// spans is larger (and thus includes the other). Falls back to\n// comparing ids when the spans cover exactly the same range.\nfunction compareCollapsedMarkers(a, b) {\n var lenDiff = a.lines.length - b.lines.length\n if (lenDiff != 0) { return lenDiff }\n var aPos = a.find(), bPos = b.find()\n var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b)\n if (fromCmp) { return -fromCmp }\n var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b)\n if (toCmp) { return toCmp }\n return b.id - a.id\n}\n\n// Find out whether a line ends or starts in a collapsed span. If\n// so, return the marker for that span.\nfunction collapsedSpanAtSide(line, start) {\n var sps = sawCollapsedSpans && line.markedSpans, found\n if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {\n sp = sps[i]\n if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&\n (!found || compareCollapsedMarkers(found, sp.marker) < 0))\n { found = sp.marker }\n } }\n return found\n}\nfunction collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }\nfunction collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }\n\n// Test whether there exists a collapsed span that partially\n// overlaps (covers the start or end, but not both) of a new span.\n// Such overlap is not allowed.\nfunction conflictingCollapsedRange(doc, lineNo, from, to, marker) {\n var line = getLine(doc, lineNo)\n var sps = sawCollapsedSpans && line.markedSpans\n if (sps) { for (var i = 0; i < sps.length; ++i) {\n var sp = sps[i]\n if (!sp.marker.collapsed) { continue }\n var found = sp.marker.find(0)\n var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker)\n var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker)\n if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }\n if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||\n fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))\n { return true }\n } }\n}\n\n// A visual line is a line as drawn on the screen. Folding, for\n// example, can cause multiple logical lines to appear on the same\n// visual line. This finds the start of the visual line that the\n// given line is part of (usually that is the line itself).\nfunction visualLine(line) {\n var merged\n while (merged = collapsedSpanAtStart(line))\n { line = merged.find(-1, true).line }\n return line\n}\n\nfunction visualLineEnd(line) {\n var merged\n while (merged = collapsedSpanAtEnd(line))\n { line = merged.find(1, true).line }\n return line\n}\n\n// Returns an array of logical lines that continue the visual line\n// started by the argument, or undefined if there are no such lines.\nfunction visualLineContinued(line) {\n var merged, lines\n while (merged = collapsedSpanAtEnd(line)) {\n line = merged.find(1, true).line\n ;(lines || (lines = [])).push(line)\n }\n return lines\n}\n\n// Get the line number of the start of the visual line that the\n// given line number is part of.\nfunction visualLineNo(doc, lineN) {\n var line = getLine(doc, lineN), vis = visualLine(line)\n if (line == vis) { return lineN }\n return lineNo(vis)\n}\n\n// Get the line number of the start of the next visual line after\n// the given line.\nfunction visualLineEndNo(doc, lineN) {\n if (lineN > doc.lastLine()) { return lineN }\n var line = getLine(doc, lineN), merged\n if (!lineIsHidden(doc, line)) { return lineN }\n while (merged = collapsedSpanAtEnd(line))\n { line = merged.find(1, true).line }\n return lineNo(line) + 1\n}\n\n// Compute whether a line is hidden. Lines count as hidden when they\n// are part of a visual line that starts with another line, or when\n// they are entirely covered by collapsed, non-widget span.\nfunction lineIsHidden(doc, line) {\n var sps = sawCollapsedSpans && line.markedSpans\n if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {\n sp = sps[i]\n if (!sp.marker.collapsed) { continue }\n if (sp.from == null) { return true }\n if (sp.marker.widgetNode) { continue }\n if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))\n { return true }\n } }\n}\nfunction lineIsHiddenInner(doc, line, span) {\n if (span.to == null) {\n var end = span.marker.find(1, true)\n return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))\n }\n if (span.marker.inclusiveRight && span.to == line.text.length)\n { return true }\n for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {\n sp = line.markedSpans[i]\n if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&\n (sp.to == null || sp.to != span.from) &&\n (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&\n lineIsHiddenInner(doc, line, sp)) { return true }\n }\n}\n\n// Find the height above the given line.\nfunction heightAtLine(lineObj) {\n lineObj = visualLine(lineObj)\n\n var h = 0, chunk = lineObj.parent\n for (var i = 0; i < chunk.lines.length; ++i) {\n var line = chunk.lines[i]\n if (line == lineObj) { break }\n else { h += line.height }\n }\n for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {\n for (var i$1 = 0; i$1 < p.children.length; ++i$1) {\n var cur = p.children[i$1]\n if (cur == chunk) { break }\n else { h += cur.height }\n }\n }\n return h\n}\n\n// Compute the character length of a line, taking into account\n// collapsed ranges (see markText) that might hide parts, and join\n// other lines onto it.\nfunction lineLength(line) {\n if (line.height == 0) { return 0 }\n var len = line.text.length, merged, cur = line\n while (merged = collapsedSpanAtStart(cur)) {\n var found = merged.find(0, true)\n cur = found.from.line\n len += found.from.ch - found.to.ch\n }\n cur = line\n while (merged = collapsedSpanAtEnd(cur)) {\n var found$1 = merged.find(0, true)\n len -= cur.text.length - found$1.from.ch\n cur = found$1.to.line\n len += cur.text.length - found$1.to.ch\n }\n return len\n}\n\n// Find the longest line in the document.\nfunction findMaxLine(cm) {\n var d = cm.display, doc = cm.doc\n d.maxLine = getLine(doc, doc.first)\n d.maxLineLength = lineLength(d.maxLine)\n d.maxLineChanged = true\n doc.iter(function (line) {\n var len = lineLength(line)\n if (len > d.maxLineLength) {\n d.maxLineLength = len\n d.maxLine = line\n }\n })\n}\n\n// BIDI HELPERS\n\nfunction iterateBidiSections(order, from, to, f) {\n if (!order) { return f(from, to, \"ltr\") }\n var found = false\n for (var i = 0; i < order.length; ++i) {\n var part = order[i]\n if (part.from < to && part.to > from || from == to && part.to == from) {\n f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? \"rtl\" : \"ltr\")\n found = true\n }\n }\n if (!found) { f(from, to, \"ltr\") }\n}\n\nvar bidiOther = null\nfunction getBidiPartAt(order, ch, sticky) {\n var found\n bidiOther = null\n for (var i = 0; i < order.length; ++i) {\n var cur = order[i]\n if (cur.from < ch && cur.to > ch) { return i }\n if (cur.to == ch) {\n if (cur.from != cur.to && sticky == \"before\") { found = i }\n else { bidiOther = i }\n }\n if (cur.from == ch) {\n if (cur.from != cur.to && sticky != \"before\") { found = i }\n else { bidiOther = i }\n }\n }\n return found != null ? found : bidiOther\n}\n\n// Bidirectional ordering algorithm\n// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm\n// that this (partially) implements.\n\n// One-char codes used for character types:\n// L (L): Left-to-Right\n// R (R): Right-to-Left\n// r (AL): Right-to-Left Arabic\n// 1 (EN): European Number\n// + (ES): European Number Separator\n// % (ET): European Number Terminator\n// n (AN): Arabic Number\n// , (CS): Common Number Separator\n// m (NSM): Non-Spacing Mark\n// b (BN): Boundary Neutral\n// s (B): Paragraph Separator\n// t (S): Segment Separator\n// w (WS): Whitespace\n// N (ON): Other Neutrals\n\n// Returns null if characters are ordered as they appear\n// (left-to-right), or an array of sections ({from, to, level}\n// objects) in the order in which they occur visually.\nvar bidiOrdering = (function() {\n // Character types for codepoints 0 to 0xff\n var lowTypes = \"bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN\"\n // Character types for codepoints 0x600 to 0x6f9\n var arabicTypes = \"nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111\"\n function charType(code) {\n if (code <= 0xf7) { return lowTypes.charAt(code) }\n else if (0x590 <= code && code <= 0x5f4) { return \"R\" }\n else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }\n else if (0x6ee <= code && code <= 0x8ac) { return \"r\" }\n else if (0x2000 <= code && code <= 0x200b) { return \"w\" }\n else if (code == 0x200c) { return \"b\" }\n else { return \"L\" }\n }\n\n var bidiRE = /[\\u0590-\\u05f4\\u0600-\\u06ff\\u0700-\\u08ac]/\n var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/\n\n function BidiSpan(level, from, to) {\n this.level = level\n this.from = from; this.to = to\n }\n\n return function(str, direction) {\n var outerType = direction == \"ltr\" ? \"L\" : \"R\"\n\n if (str.length == 0 || direction == \"ltr\" && !bidiRE.test(str)) { return false }\n var len = str.length, types = []\n for (var i = 0; i < len; ++i)\n { types.push(charType(str.charCodeAt(i))) }\n\n // W1. Examine each non-spacing mark (NSM) in the level run, and\n // change the type of the NSM to the type of the previous\n // character. If the NSM is at the start of the level run, it will\n // get the type of sor.\n for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {\n var type = types[i$1]\n if (type == \"m\") { types[i$1] = prev }\n else { prev = type }\n }\n\n // W2. Search backwards from each instance of a European number\n // until the first strong type (R, L, AL, or sor) is found. If an\n // AL is found, change the type of the European number to Arabic\n // number.\n // W3. Change all ALs to R.\n for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {\n var type$1 = types[i$2]\n if (type$1 == \"1\" && cur == \"r\") { types[i$2] = \"n\" }\n else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == \"r\") { types[i$2] = \"R\" } }\n }\n\n // W4. A single European separator between two European numbers\n // changes to a European number. A single common separator between\n // two numbers of the same type changes to that type.\n for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {\n var type$2 = types[i$3]\n if (type$2 == \"+\" && prev$1 == \"1\" && types[i$3+1] == \"1\") { types[i$3] = \"1\" }\n else if (type$2 == \",\" && prev$1 == types[i$3+1] &&\n (prev$1 == \"1\" || prev$1 == \"n\")) { types[i$3] = prev$1 }\n prev$1 = type$2\n }\n\n // W5. A sequence of European terminators adjacent to European\n // numbers changes to all European numbers.\n // W6. Otherwise, separators and terminators change to Other\n // Neutral.\n for (var i$4 = 0; i$4 < len; ++i$4) {\n var type$3 = types[i$4]\n if (type$3 == \",\") { types[i$4] = \"N\" }\n else if (type$3 == \"%\") {\n var end = (void 0)\n for (end = i$4 + 1; end < len && types[end] == \"%\"; ++end) {}\n var replace = (i$4 && types[i$4-1] == \"!\") || (end < len && types[end] == \"1\") ? \"1\" : \"N\"\n for (var j = i$4; j < end; ++j) { types[j] = replace }\n i$4 = end - 1\n }\n }\n\n // W7. Search backwards from each instance of a European number\n // until the first strong type (R, L, or sor) is found. If an L is\n // found, then change the type of the European number to L.\n for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {\n var type$4 = types[i$5]\n if (cur$1 == \"L\" && type$4 == \"1\") { types[i$5] = \"L\" }\n else if (isStrong.test(type$4)) { cur$1 = type$4 }\n }\n\n // N1. A sequence of neutrals takes the direction of the\n // surrounding strong text if the text on both sides has the same\n // direction. European and Arabic numbers act as if they were R in\n // terms of their influence on neutrals. Start-of-level-run (sor)\n // and end-of-level-run (eor) are used at level run boundaries.\n // N2. Any remaining neutrals take the embedding direction.\n for (var i$6 = 0; i$6 < len; ++i$6) {\n if (isNeutral.test(types[i$6])) {\n var end$1 = (void 0)\n for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}\n var before = (i$6 ? types[i$6-1] : outerType) == \"L\"\n var after = (end$1 < len ? types[end$1] : outerType) == \"L\"\n var replace$1 = before == after ? (before ? \"L\" : \"R\") : outerType\n for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1 }\n i$6 = end$1 - 1\n }\n }\n\n // Here we depart from the documented algorithm, in order to avoid\n // building up an actual levels array. Since there are only three\n // levels (0, 1, 2) in an implementation that doesn't take\n // explicit embedding into account, we can build up the order on\n // the fly, without following the level-based algorithm.\n var order = [], m\n for (var i$7 = 0; i$7 < len;) {\n if (countsAsLeft.test(types[i$7])) {\n var start = i$7\n for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}\n order.push(new BidiSpan(0, start, i$7))\n } else {\n var pos = i$7, at = order.length\n for (++i$7; i$7 < len && types[i$7] != \"L\"; ++i$7) {}\n for (var j$2 = pos; j$2 < i$7;) {\n if (countsAsNum.test(types[j$2])) {\n if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)) }\n var nstart = j$2\n for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}\n order.splice(at, 0, new BidiSpan(2, nstart, j$2))\n pos = j$2\n } else { ++j$2 }\n }\n if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)) }\n }\n }\n if (order[0].level == 1 && (m = str.match(/^\\s+/))) {\n order[0].from = m[0].length\n order.unshift(new BidiSpan(0, 0, m[0].length))\n }\n if (lst(order).level == 1 && (m = str.match(/\\s+$/))) {\n lst(order).to -= m[0].length\n order.push(new BidiSpan(0, len - m[0].length, len))\n }\n\n return direction == \"rtl\" ? order.reverse() : order\n }\n})()\n\n// Get the bidi ordering for the given line (and cache it). Returns\n// false for lines that are fully left-to-right, and an array of\n// BidiSpan objects otherwise.\nfunction getOrder(line, direction) {\n var order = line.order\n if (order == null) { order = line.order = bidiOrdering(line.text, direction) }\n return order\n}\n\nfunction moveCharLogically(line, ch, dir) {\n var target = skipExtendingChars(line.text, ch + dir, dir)\n return target < 0 || target > line.text.length ? null : target\n}\n\nfunction moveLogically(line, start, dir) {\n var ch = moveCharLogically(line, start.ch, dir)\n return ch == null ? null : new Pos(start.line, ch, dir < 0 ? \"after\" : \"before\")\n}\n\nfunction endOfLine(visually, cm, lineObj, lineNo, dir) {\n if (visually) {\n var order = getOrder(lineObj, cm.doc.direction)\n if (order) {\n var part = dir < 0 ? lst(order) : order[0]\n var moveInStorageOrder = (dir < 0) == (part.level == 1)\n var sticky = moveInStorageOrder ? \"after\" : \"before\"\n var ch\n // With a wrapped rtl chunk (possibly spanning multiple bidi parts),\n // it could be that the last bidi part is not on the last visual line,\n // since visual lines contain content order-consecutive chunks.\n // Thus, in rtl, we are looking for the first (content-order) character\n // in the rtl chunk that is on the last line (that is, the same line\n // as the last (content-order) character).\n if (part.level > 0) {\n var prep = prepareMeasureForLine(cm, lineObj)\n ch = dir < 0 ? lineObj.text.length - 1 : 0\n var targetTop = measureCharPrepared(cm, prep, ch).top\n ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch)\n if (sticky == \"before\") { ch = moveCharLogically(lineObj, ch, 1) }\n } else { ch = dir < 0 ? part.to : part.from }\n return new Pos(lineNo, ch, sticky)\n }\n }\n return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? \"before\" : \"after\")\n}\n\nfunction moveVisually(cm, line, start, dir) {\n var bidi = getOrder(line, cm.doc.direction)\n if (!bidi) { return moveLogically(line, start, dir) }\n if (start.ch >= line.text.length) {\n start.ch = line.text.length\n start.sticky = \"before\"\n } else if (start.ch <= 0) {\n start.ch = 0\n start.sticky = \"after\"\n }\n var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]\n if (cm.doc.direction == \"ltr\" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {\n // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,\n // nothing interesting happens.\n return moveLogically(line, start, dir)\n }\n\n var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); }\n var prep\n var getWrappedLineExtent = function (ch) {\n if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }\n prep = prep || prepareMeasureForLine(cm, line)\n return wrappedLineExtentChar(cm, line, prep, ch)\n }\n var wrappedLineExtent = getWrappedLineExtent(start.sticky == \"before\" ? mv(start, -1) : start.ch)\n\n if (cm.doc.direction == \"rtl\" || part.level == 1) {\n var moveInStorageOrder = (part.level == 1) == (dir < 0)\n var ch = mv(start, moveInStorageOrder ? 1 : -1)\n if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {\n // Case 2: We move within an rtl part or in an rtl editor on the same visual line\n var sticky = moveInStorageOrder ? \"before\" : \"after\"\n return new Pos(start.line, ch, sticky)\n }\n }\n\n // Case 3: Could not move within this bidi part in this visual line, so leave\n // the current bidi part\n\n var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {\n var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder\n ? new Pos(start.line, mv(ch, 1), \"before\")\n : new Pos(start.line, ch, \"after\"); }\n\n for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {\n var part = bidi[partPos]\n var moveInStorageOrder = (dir > 0) == (part.level != 1)\n var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1)\n if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }\n ch = moveInStorageOrder ? part.from : mv(part.to, -1)\n if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }\n }\n }\n\n // Case 3a: Look for other bidi parts on the same visual line\n var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent)\n if (res) { return res }\n\n // Case 3b: Look for other bidi parts on the next visual line\n var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1)\n if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {\n res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh))\n if (res) { return res }\n }\n\n // Case 4: Nowhere to move\n return null\n}\n\n// EVENT HANDLING\n\n// Lightweight event framework. on/off also work on DOM nodes,\n// registering native DOM handlers.\n\nvar noHandlers = []\n\nvar on = function(emitter, type, f) {\n if (emitter.addEventListener) {\n emitter.addEventListener(type, f, false)\n } else if (emitter.attachEvent) {\n emitter.attachEvent(\"on\" + type, f)\n } else {\n var map = emitter._handlers || (emitter._handlers = {})\n map[type] = (map[type] || noHandlers).concat(f)\n }\n}\n\nfunction getHandlers(emitter, type) {\n return emitter._handlers && emitter._handlers[type] || noHandlers\n}\n\nfunction off(emitter, type, f) {\n if (emitter.removeEventListener) {\n emitter.removeEventListener(type, f, false)\n } else if (emitter.detachEvent) {\n emitter.detachEvent(\"on\" + type, f)\n } else {\n var map = emitter._handlers, arr = map && map[type]\n if (arr) {\n var index = indexOf(arr, f)\n if (index > -1)\n { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)) }\n }\n }\n}\n\nfunction signal(emitter, type /*, values...*/) {\n var handlers = getHandlers(emitter, type)\n if (!handlers.length) { return }\n var args = Array.prototype.slice.call(arguments, 2)\n for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args) }\n}\n\n// The DOM events that CodeMirror handles can be overridden by\n// registering a (non-DOM) handler on the editor for the event name,\n// and preventDefault-ing the event in that handler.\nfunction signalDOMEvent(cm, e, override) {\n if (typeof e == \"string\")\n { e = {type: e, preventDefault: function() { this.defaultPrevented = true }} }\n signal(cm, override || e.type, cm, e)\n return e_defaultPrevented(e) || e.codemirrorIgnore\n}\n\nfunction signalCursorActivity(cm) {\n var arr = cm._handlers && cm._handlers.cursorActivity\n if (!arr) { return }\n var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = [])\n for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)\n { set.push(arr[i]) } }\n}\n\nfunction hasHandler(emitter, type) {\n return getHandlers(emitter, type).length > 0\n}\n\n// Add on and off methods to a constructor's prototype, to make\n// registering events on such objects more convenient.\nfunction eventMixin(ctor) {\n ctor.prototype.on = function(type, f) {on(this, type, f)}\n ctor.prototype.off = function(type, f) {off(this, type, f)}\n}\n\n// Due to the fact that we still support jurassic IE versions, some\n// compatibility wrappers are needed.\n\nfunction e_preventDefault(e) {\n if (e.preventDefault) { e.preventDefault() }\n else { e.returnValue = false }\n}\nfunction e_stopPropagation(e) {\n if (e.stopPropagation) { e.stopPropagation() }\n else { e.cancelBubble = true }\n}\nfunction e_defaultPrevented(e) {\n return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false\n}\nfunction e_stop(e) {e_preventDefault(e); e_stopPropagation(e)}\n\nfunction e_target(e) {return e.target || e.srcElement}\nfunction e_button(e) {\n var b = e.which\n if (b == null) {\n if (e.button & 1) { b = 1 }\n else if (e.button & 2) { b = 3 }\n else if (e.button & 4) { b = 2 }\n }\n if (mac && e.ctrlKey && b == 1) { b = 3 }\n return b\n}\n\n// Detect drag-and-drop\nvar dragAndDrop = function() {\n // There is *some* kind of drag-and-drop support in IE6-8, but I\n // couldn't get it to work yet.\n if (ie && ie_version < 9) { return false }\n var div = elt('div')\n return \"draggable\" in div || \"dragDrop\" in div\n}()\n\nvar zwspSupported\nfunction zeroWidthElement(measure) {\n if (zwspSupported == null) {\n var test = elt(\"span\", \"\\u200b\")\n removeChildrenAndAdd(measure, elt(\"span\", [test, document.createTextNode(\"x\")]))\n if (measure.firstChild.offsetHeight != 0)\n { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8) }\n }\n var node = zwspSupported ? elt(\"span\", \"\\u200b\") :\n elt(\"span\", \"\\u00a0\", null, \"display: inline-block; width: 1px; margin-right: -1px\")\n node.setAttribute(\"cm-text\", \"\")\n return node\n}\n\n// Feature-detect IE's crummy client rect reporting for bidi text\nvar badBidiRects\nfunction hasBadBidiRects(measure) {\n if (badBidiRects != null) { return badBidiRects }\n var txt = removeChildrenAndAdd(measure, document.createTextNode(\"A\\u062eA\"))\n var r0 = range(txt, 0, 1).getBoundingClientRect()\n var r1 = range(txt, 1, 2).getBoundingClientRect()\n removeChildren(measure)\n if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)\n return badBidiRects = (r1.right - r0.right < 3)\n}\n\n// See if \"\".split is the broken IE version, if so, provide an\n// alternative way to split lines.\nvar splitLinesAuto = \"\\n\\nb\".split(/\\n/).length != 3 ? function (string) {\n var pos = 0, result = [], l = string.length\n while (pos <= l) {\n var nl = string.indexOf(\"\\n\", pos)\n if (nl == -1) { nl = string.length }\n var line = string.slice(pos, string.charAt(nl - 1) == \"\\r\" ? nl - 1 : nl)\n var rt = line.indexOf(\"\\r\")\n if (rt != -1) {\n result.push(line.slice(0, rt))\n pos += rt + 1\n } else {\n result.push(line)\n pos = nl + 1\n }\n }\n return result\n} : function (string) { return string.split(/\\r\\n?|\\n/); }\n\nvar hasSelection = window.getSelection ? function (te) {\n try { return te.selectionStart != te.selectionEnd }\n catch(e) { return false }\n} : function (te) {\n var range\n try {range = te.ownerDocument.selection.createRange()}\n catch(e) {}\n if (!range || range.parentElement() != te) { return false }\n return range.compareEndPoints(\"StartToEnd\", range) != 0\n}\n\nvar hasCopyEvent = (function () {\n var e = elt(\"div\")\n if (\"oncopy\" in e) { return true }\n e.setAttribute(\"oncopy\", \"return;\")\n return typeof e.oncopy == \"function\"\n})()\n\nvar badZoomedRects = null\nfunction hasBadZoomedRects(measure) {\n if (badZoomedRects != null) { return badZoomedRects }\n var node = removeChildrenAndAdd(measure, elt(\"span\", \"x\"))\n var normal = node.getBoundingClientRect()\n var fromRange = range(node, 0, 1).getBoundingClientRect()\n return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1\n}\n\nvar modes = {};\nvar mimeModes = {};\n// Extra arguments are stored as the mode's dependencies, which is\n// used by (legacy) mechanisms like loadmode.js to automatically\n// load a mode. (Preferred mechanism is the require/define calls.)\nfunction defineMode(name, mode) {\n if (arguments.length > 2)\n { mode.dependencies = Array.prototype.slice.call(arguments, 2) }\n modes[name] = mode\n}\n\nfunction defineMIME(mime, spec) {\n mimeModes[mime] = spec\n}\n\n// Given a MIME type, a {name, ...options} config object, or a name\n// string, return a mode config object.\nfunction resolveMode(spec) {\n if (typeof spec == \"string\" && mimeModes.hasOwnProperty(spec)) {\n spec = mimeModes[spec]\n } else if (spec && typeof spec.name == \"string\" && mimeModes.hasOwnProperty(spec.name)) {\n var found = mimeModes[spec.name]\n if (typeof found == \"string\") { found = {name: found} }\n spec = createObj(found, spec)\n spec.name = found.name\n } else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+xml$/.test(spec)) {\n return resolveMode(\"application/xml\")\n } else if (typeof spec == \"string\" && /^[\\w\\-]+\\/[\\w\\-]+\\+json$/.test(spec)) {\n return resolveMode(\"application/json\")\n }\n if (typeof spec == \"string\") { return {name: spec} }\n else { return spec || {name: \"null\"} }\n}\n\n// Given a mode spec (anything that resolveMode accepts), find and\n// initialize an actual mode object.\nfunction getMode(options, spec) {\n spec = resolveMode(spec)\n var mfactory = modes[spec.name]\n if (!mfactory) { return getMode(options, \"text/plain\") }\n var modeObj = mfactory(options, spec)\n if (modeExtensions.hasOwnProperty(spec.name)) {\n var exts = modeExtensions[spec.name]\n for (var prop in exts) {\n if (!exts.hasOwnProperty(prop)) { continue }\n if (modeObj.hasOwnProperty(prop)) { modeObj[\"_\" + prop] = modeObj[prop] }\n modeObj[prop] = exts[prop]\n }\n }\n modeObj.name = spec.name\n if (spec.helperType) { modeObj.helperType = spec.helperType }\n if (spec.modeProps) { for (var prop$1 in spec.modeProps)\n { modeObj[prop$1] = spec.modeProps[prop$1] } }\n\n return modeObj\n}\n\n// This can be used to attach properties to mode objects from\n// outside the actual mode definition.\nvar modeExtensions = {}\nfunction extendMode(mode, properties) {\n var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {})\n copyObj(properties, exts)\n}\n\nfunction copyState(mode, state) {\n if (state === true) { return state }\n if (mode.copyState) { return mode.copyState(state) }\n var nstate = {}\n for (var n in state) {\n var val = state[n]\n if (val instanceof Array) { val = val.concat([]) }\n nstate[n] = val\n }\n return nstate\n}\n\n// Given a mode and a state (for that mode), find the inner mode and\n// state at the position that the state refers to.\nfunction innerMode(mode, state) {\n var info\n while (mode.innerMode) {\n info = mode.innerMode(state)\n if (!info || info.mode == mode) { break }\n state = info.state\n mode = info.mode\n }\n return info || {mode: mode, state: state}\n}\n\nfunction startState(mode, a1, a2) {\n return mode.startState ? mode.startState(a1, a2) : true\n}\n\n// STRING STREAM\n\n// Fed to the mode parsers, provides helper functions to make\n// parsers more succinct.\n\nvar StringStream = function(string, tabSize, lineOracle) {\n this.pos = this.start = 0\n this.string = string\n this.tabSize = tabSize || 8\n this.lastColumnPos = this.lastColumnValue = 0\n this.lineStart = 0\n this.lineOracle = lineOracle\n};\n\nStringStream.prototype.eol = function () {return this.pos >= this.string.length};\nStringStream.prototype.sol = function () {return this.pos == this.lineStart};\nStringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};\nStringStream.prototype.next = function () {\n if (this.pos < this.string.length)\n { return this.string.charAt(this.pos++) }\n};\nStringStream.prototype.eat = function (match) {\n var ch = this.string.charAt(this.pos)\n var ok\n if (typeof match == \"string\") { ok = ch == match }\n else { ok = ch && (match.test ? match.test(ch) : match(ch)) }\n if (ok) {++this.pos; return ch}\n};\nStringStream.prototype.eatWhile = function (match) {\n var start = this.pos\n while (this.eat(match)){}\n return this.pos > start\n};\nStringStream.prototype.eatSpace = function () {\n var this$1 = this;\n\n var start = this.pos\n while (/[\\s\\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos }\n return this.pos > start\n};\nStringStream.prototype.skipToEnd = function () {this.pos = this.string.length};\nStringStream.prototype.skipTo = function (ch) {\n var found = this.string.indexOf(ch, this.pos)\n if (found > -1) {this.pos = found; return true}\n};\nStringStream.prototype.backUp = function (n) {this.pos -= n};\nStringStream.prototype.column = function () {\n if (this.lastColumnPos < this.start) {\n this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue)\n this.lastColumnPos = this.start\n }\n return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)\n};\nStringStream.prototype.indentation = function () {\n return countColumn(this.string, null, this.tabSize) -\n (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)\n};\nStringStream.prototype.match = function (pattern, consume, caseInsensitive) {\n if (typeof pattern == \"string\") {\n var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }\n var substr = this.string.substr(this.pos, pattern.length)\n if (cased(substr) == cased(pattern)) {\n if (consume !== false) { this.pos += pattern.length }\n return true\n }\n } else {\n var match = this.string.slice(this.pos).match(pattern)\n if (match && match.index > 0) { return null }\n if (match && consume !== false) { this.pos += match[0].length }\n return match\n }\n};\nStringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};\nStringStream.prototype.hideFirstChars = function (n, inner) {\n this.lineStart += n\n try { return inner() }\n finally { this.lineStart -= n }\n};\nStringStream.prototype.lookAhead = function (n) {\n var oracle = this.lineOracle\n return oracle && oracle.lookAhead(n)\n};\n\nvar SavedContext = function(state, lookAhead) {\n this.state = state\n this.lookAhead = lookAhead\n};\n\nvar Context = function(doc, state, line, lookAhead) {\n this.state = state\n this.doc = doc\n this.line = line\n this.maxLookAhead = lookAhead || 0\n};\n\nContext.prototype.lookAhead = function (n) {\n var line = this.doc.getLine(this.line + n)\n if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n }\n return line\n};\n\nContext.prototype.nextLine = function () {\n this.line++\n if (this.maxLookAhead > 0) { this.maxLookAhead-- }\n};\n\nContext.fromSaved = function (doc, saved, line) {\n if (saved instanceof SavedContext)\n { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) }\n else\n { return new Context(doc, copyState(doc.mode, saved), line) }\n};\n\nContext.prototype.save = function (copy) {\n var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state\n return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state\n};\n\n\n// Compute a style array (an array starting with a mode generation\n// -- for invalidation -- followed by pairs of end positions and\n// style strings), which is used to highlight the tokens on the\n// line.\nfunction highlightLine(cm, line, context, forceToEnd) {\n // A styles array always starts with a number identifying the\n // mode/overlays that it is based on (for easy invalidation).\n var st = [cm.state.modeGen], lineClasses = {}\n // Compute the base array of styles\n runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); },\n lineClasses, forceToEnd)\n var state = context.state\n\n // Run overlays, adjust style array.\n var loop = function ( o ) {\n var overlay = cm.state.overlays[o], i = 1, at = 0\n context.state = true\n runMode(cm, line.text, overlay.mode, context, function (end, style) {\n var start = i\n // Ensure there's a token end at the current position, and that i points at it\n while (at < end) {\n var i_end = st[i]\n if (i_end > end)\n { st.splice(i, 1, end, st[i+1], i_end) }\n i += 2\n at = Math.min(end, i_end)\n }\n if (!style) { return }\n if (overlay.opaque) {\n st.splice(start, i - start, end, \"overlay \" + style)\n i = start + 2\n } else {\n for (; start < i; start += 2) {\n var cur = st[start+1]\n st[start+1] = (cur ? cur + \" \" : \"\") + \"overlay \" + style\n }\n }\n }, lineClasses)\n };\n\n for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );\n context.state = state\n\n return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}\n}\n\nfunction getLineStyles(cm, line, updateFrontier) {\n if (!line.styles || line.styles[0] != cm.state.modeGen) {\n var context = getContextBefore(cm, lineNo(line))\n var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state)\n var result = highlightLine(cm, line, context)\n if (resetState) { context.state = resetState }\n line.stateAfter = context.save(!resetState)\n line.styles = result.styles\n if (result.classes) { line.styleClasses = result.classes }\n else if (line.styleClasses) { line.styleClasses = null }\n if (updateFrontier === cm.doc.highlightFrontier)\n { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier) }\n }\n return line.styles\n}\n\nfunction getContextBefore(cm, n, precise) {\n var doc = cm.doc, display = cm.display\n if (!doc.mode.startState) { return new Context(doc, true, n) }\n var start = findStartLine(cm, n, precise)\n var saved = start > doc.first && getLine(doc, start - 1).stateAfter\n var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start)\n\n doc.iter(start, n, function (line) {\n processLine(cm, line.text, context)\n var pos = context.line\n line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null\n context.nextLine()\n })\n if (precise) { doc.modeFrontier = context.line }\n return context\n}\n\n// Lightweight form of highlight -- proceed over this line and\n// update state, but don't save a style array. Used for lines that\n// aren't currently visible.\nfunction processLine(cm, text, context, startAt) {\n var mode = cm.doc.mode\n var stream = new StringStream(text, cm.options.tabSize, context)\n stream.start = stream.pos = startAt || 0\n if (text == \"\") { callBlankLine(mode, context.state) }\n while (!stream.eol()) {\n readToken(mode, stream, context.state)\n stream.start = stream.pos\n }\n}\n\nfunction callBlankLine(mode, state) {\n if (mode.blankLine) { return mode.blankLine(state) }\n if (!mode.innerMode) { return }\n var inner = innerMode(mode, state)\n if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }\n}\n\nfunction readToken(mode, stream, state, inner) {\n for (var i = 0; i < 10; i++) {\n if (inner) { inner[0] = innerMode(mode, state).mode }\n var style = mode.token(stream, state)\n if (stream.pos > stream.start) { return style }\n }\n throw new Error(\"Mode \" + mode.name + \" failed to advance stream.\")\n}\n\nvar Token = function(stream, type, state) {\n this.start = stream.start; this.end = stream.pos\n this.string = stream.current()\n this.type = type || null\n this.state = state\n};\n\n// Utility for getTokenAt and getLineTokens\nfunction takeToken(cm, pos, precise, asArray) {\n var doc = cm.doc, mode = doc.mode, style\n pos = clipPos(doc, pos)\n var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise)\n var stream = new StringStream(line.text, cm.options.tabSize, context), tokens\n if (asArray) { tokens = [] }\n while ((asArray || stream.pos < pos.ch) && !stream.eol()) {\n stream.start = stream.pos\n style = readToken(mode, stream, context.state)\n if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))) }\n }\n return asArray ? tokens : new Token(stream, style, context.state)\n}\n\nfunction extractLineClasses(type, output) {\n if (type) { for (;;) {\n var lineClass = type.match(/(?:^|\\s+)line-(background-)?(\\S+)/)\n if (!lineClass) { break }\n type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length)\n var prop = lineClass[1] ? \"bgClass\" : \"textClass\"\n if (output[prop] == null)\n { output[prop] = lineClass[2] }\n else if (!(new RegExp(\"(?:^|\\s)\" + lineClass[2] + \"(?:$|\\s)\")).test(output[prop]))\n { output[prop] += \" \" + lineClass[2] }\n } }\n return type\n}\n\n// Run the given mode's parser over a line, calling f for each token.\nfunction runMode(cm, text, mode, context, f, lineClasses, forceToEnd) {\n var flattenSpans = mode.flattenSpans\n if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans }\n var curStart = 0, curStyle = null\n var stream = new StringStream(text, cm.options.tabSize, context), style\n var inner = cm.options.addModeClass && [null]\n if (text == \"\") { extractLineClasses(callBlankLine(mode, context.state), lineClasses) }\n while (!stream.eol()) {\n if (stream.pos > cm.options.maxHighlightLength) {\n flattenSpans = false\n if (forceToEnd) { processLine(cm, text, context, stream.pos) }\n stream.pos = text.length\n style = null\n } else {\n style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses)\n }\n if (inner) {\n var mName = inner[0].name\n if (mName) { style = \"m-\" + (style ? mName + \" \" + style : mName) }\n }\n if (!flattenSpans || curStyle != style) {\n while (curStart < stream.start) {\n curStart = Math.min(stream.start, curStart + 5000)\n f(curStart, curStyle)\n }\n curStyle = style\n }\n stream.start = stream.pos\n }\n while (curStart < stream.pos) {\n // Webkit seems to refuse to render text nodes longer than 57444\n // characters, and returns inaccurate measurements in nodes\n // starting around 5000 chars.\n var pos = Math.min(stream.pos, curStart + 5000)\n f(pos, curStyle)\n curStart = pos\n }\n}\n\n// Finds the line to start with when starting a parse. Tries to\n// find a line with a stateAfter, so that it can start with a\n// valid state. If that fails, it returns the line with the\n// smallest indentation, which tends to need the least context to\n// parse correctly.\nfunction findStartLine(cm, n, precise) {\n var minindent, minline, doc = cm.doc\n var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100)\n for (var search = n; search > lim; --search) {\n if (search <= doc.first) { return doc.first }\n var line = getLine(doc, search - 1), after = line.stateAfter\n if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier))\n { return search }\n var indented = countColumn(line.text, null, cm.options.tabSize)\n if (minline == null || minindent > indented) {\n minline = search - 1\n minindent = indented\n }\n }\n return minline\n}\n\nfunction retreatFrontier(doc, n) {\n doc.modeFrontier = Math.min(doc.modeFrontier, n)\n if (doc.highlightFrontier < n - 10) { return }\n var start = doc.first\n for (var line = n - 1; line > start; line--) {\n var saved = getLine(doc, line).stateAfter\n // change is on 3\n // state on line 1 looked ahead 2 -- so saw 3\n // test 1 + 2 < 3 should cover this\n if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) {\n start = line + 1\n break\n }\n }\n doc.highlightFrontier = Math.min(doc.highlightFrontier, start)\n}\n\n// LINE DATA STRUCTURE\n\n// Line objects. These hold state related to a line, including\n// highlighting info (the styles array).\nvar Line = function(text, markedSpans, estimateHeight) {\n this.text = text\n attachMarkedSpans(this, markedSpans)\n this.height = estimateHeight ? estimateHeight(this) : 1\n};\n\nLine.prototype.lineNo = function () { return lineNo(this) };\neventMixin(Line)\n\n// Change the content (text, markers) of a line. Automatically\n// invalidates cached information and tries to re-estimate the\n// line's height.\nfunction updateLine(line, text, markedSpans, estimateHeight) {\n line.text = text\n if (line.stateAfter) { line.stateAfter = null }\n if (line.styles) { line.styles = null }\n if (line.order != null) { line.order = null }\n detachMarkedSpans(line)\n attachMarkedSpans(line, markedSpans)\n var estHeight = estimateHeight ? estimateHeight(line) : 1\n if (estHeight != line.height) { updateLineHeight(line, estHeight) }\n}\n\n// Detach a line from the document tree and its markers.\nfunction cleanUpLine(line) {\n line.parent = null\n detachMarkedSpans(line)\n}\n\n// Convert a style as returned by a mode (either null, or a string\n// containing one or more styles) to a CSS style. This is cached,\n// and also looks for line-wide styles.\nvar styleToClassCache = {};\nvar styleToClassCacheWithMode = {};\nfunction interpretTokenStyle(style, options) {\n if (!style || /^\\s*$/.test(style)) { return null }\n var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache\n return cache[style] ||\n (cache[style] = style.replace(/\\S+/g, \"cm-$&\"))\n}\n\n// Render the DOM representation of the text of a line. Also builds\n// up a 'line map', which points at the DOM nodes that represent\n// specific stretches of text, and is used by the measuring code.\n// The returned object contains the DOM node, this map, and\n// information about line-wide styles that were set by the mode.\nfunction buildLineContent(cm, lineView) {\n // The padding-right forces the element to have a 'border', which\n // is needed on Webkit to be able to get line-level bounding\n // rectangles for it (in measureChar).\n var content = eltP(\"span\", null, null, webkit ? \"padding-right: .1px\" : null)\n var builder = {pre: eltP(\"pre\", [content], \"CodeMirror-line\"), content: content,\n col: 0, pos: 0, cm: cm,\n trailingSpace: false,\n splitSpaces: (ie || webkit) && cm.getOption(\"lineWrapping\")}\n lineView.measure = {}\n\n // Iterate over the logical lines that make up this visual line.\n for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {\n var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0)\n builder.pos = 0\n builder.addToken = buildToken\n // Optionally wire in some hacks into the token-rendering\n // algorithm, to deal with browser quirks.\n if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))\n { builder.addToken = buildTokenBadBidi(builder.addToken, order) }\n builder.map = []\n var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line)\n insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate))\n if (line.styleClasses) {\n if (line.styleClasses.bgClass)\n { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || \"\") }\n if (line.styleClasses.textClass)\n { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || \"\") }\n }\n\n // Ensure at least a single node is present, for measuring.\n if (builder.map.length == 0)\n { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))) }\n\n // Store the map and a cache object for the current logical line\n if (i == 0) {\n lineView.measure.map = builder.map\n lineView.measure.cache = {}\n } else {\n ;(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)\n ;(lineView.measure.caches || (lineView.measure.caches = [])).push({})\n }\n }\n\n // See issue #2901\n if (webkit) {\n var last = builder.content.lastChild\n if (/\\bcm-tab\\b/.test(last.className) || (last.querySelector && last.querySelector(\".cm-tab\")))\n { builder.content.className = \"cm-tab-wrap-hack\" }\n }\n\n signal(cm, \"renderLine\", cm, lineView.line, builder.pre)\n if (builder.pre.className)\n { builder.textClass = joinClasses(builder.pre.className, builder.textClass || \"\") }\n\n return builder\n}\n\nfunction defaultSpecialCharPlaceholder(ch) {\n var token = elt(\"span\", \"\\u2022\", \"cm-invalidchar\")\n token.title = \"\\\\u\" + ch.charCodeAt(0).toString(16)\n token.setAttribute(\"aria-label\", token.title)\n return token\n}\n\n// Build up the DOM representation for a single token, and add it to\n// the line map. Takes care to render special characters separately.\nfunction buildToken(builder, text, style, startStyle, endStyle, title, css) {\n if (!text) { return }\n var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text\n var special = builder.cm.state.specialChars, mustWrap = false\n var content\n if (!special.test(text)) {\n builder.col += text.length\n content = document.createTextNode(displayText)\n builder.map.push(builder.pos, builder.pos + text.length, content)\n if (ie && ie_version < 9) { mustWrap = true }\n builder.pos += text.length\n } else {\n content = document.createDocumentFragment()\n var pos = 0\n while (true) {\n special.lastIndex = pos\n var m = special.exec(text)\n var skipped = m ? m.index - pos : text.length - pos\n if (skipped) {\n var txt = document.createTextNode(displayText.slice(pos, pos + skipped))\n if (ie && ie_version < 9) { content.appendChild(elt(\"span\", [txt])) }\n else { content.appendChild(txt) }\n builder.map.push(builder.pos, builder.pos + skipped, txt)\n builder.col += skipped\n builder.pos += skipped\n }\n if (!m) { break }\n pos += skipped + 1\n var txt$1 = (void 0)\n if (m[0] == \"\\t\") {\n var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize\n txt$1 = content.appendChild(elt(\"span\", spaceStr(tabWidth), \"cm-tab\"))\n txt$1.setAttribute(\"role\", \"presentation\")\n txt$1.setAttribute(\"cm-text\", \"\\t\")\n builder.col += tabWidth\n } else if (m[0] == \"\\r\" || m[0] == \"\\n\") {\n txt$1 = content.appendChild(elt(\"span\", m[0] == \"\\r\" ? \"\\u240d\" : \"\\u2424\", \"cm-invalidchar\"))\n txt$1.setAttribute(\"cm-text\", m[0])\n builder.col += 1\n } else {\n txt$1 = builder.cm.options.specialCharPlaceholder(m[0])\n txt$1.setAttribute(\"cm-text\", m[0])\n if (ie && ie_version < 9) { content.appendChild(elt(\"span\", [txt$1])) }\n else { content.appendChild(txt$1) }\n builder.col += 1\n }\n builder.map.push(builder.pos, builder.pos + 1, txt$1)\n builder.pos++\n }\n }\n builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32\n if (style || startStyle || endStyle || mustWrap || css) {\n var fullStyle = style || \"\"\n if (startStyle) { fullStyle += startStyle }\n if (endStyle) { fullStyle += endStyle }\n var token = elt(\"span\", [content], fullStyle, css)\n if (title) { token.title = title }\n return builder.content.appendChild(token)\n }\n builder.content.appendChild(content)\n}\n\nfunction splitSpaces(text, trailingBefore) {\n if (text.length > 1 && !/ /.test(text)) { return text }\n var spaceBefore = trailingBefore, result = \"\"\n for (var i = 0; i < text.length; i++) {\n var ch = text.charAt(i)\n if (ch == \" \" && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))\n { ch = \"\\u00a0\" }\n result += ch\n spaceBefore = ch == \" \"\n }\n return result\n}\n\n// Work around nonsense dimensions being reported for stretches of\n// right-to-left text.\nfunction buildTokenBadBidi(inner, order) {\n return function (builder, text, style, startStyle, endStyle, title, css) {\n style = style ? style + \" cm-force-border\" : \"cm-force-border\"\n var start = builder.pos, end = start + text.length\n for (;;) {\n // Find the part that overlaps with the start of this text\n var part = (void 0)\n for (var i = 0; i < order.length; i++) {\n part = order[i]\n if (part.to > start && part.from <= start) { break }\n }\n if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, title, css) }\n inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css)\n startStyle = null\n text = text.slice(part.to - start)\n start = part.to\n }\n }\n}\n\nfunction buildCollapsedSpan(builder, size, marker, ignoreWidget) {\n var widget = !ignoreWidget && marker.widgetNode\n if (widget) { builder.map.push(builder.pos, builder.pos + size, widget) }\n if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {\n if (!widget)\n { widget = builder.content.appendChild(document.createElement(\"span\")) }\n widget.setAttribute(\"cm-marker\", marker.id)\n }\n if (widget) {\n builder.cm.display.input.setUneditable(widget)\n builder.content.appendChild(widget)\n }\n builder.pos += size\n builder.trailingSpace = false\n}\n\n// Outputs a number of spans to make up a line, taking highlighting\n// and marked text into account.\nfunction insertLineContent(line, builder, styles) {\n var spans = line.markedSpans, allText = line.text, at = 0\n if (!spans) {\n for (var i$1 = 1; i$1 < styles.length; i$1+=2)\n { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)) }\n return\n }\n\n var len = allText.length, pos = 0, i = 1, text = \"\", style, css\n var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed\n for (;;) {\n if (nextChange == pos) { // Update current marker set\n spanStyle = spanEndStyle = spanStartStyle = title = css = \"\"\n collapsed = null; nextChange = Infinity\n var foundBookmarks = [], endStyles = (void 0)\n for (var j = 0; j < spans.length; ++j) {\n var sp = spans[j], m = sp.marker\n if (m.type == \"bookmark\" && sp.from == pos && m.widgetNode) {\n foundBookmarks.push(m)\n } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {\n if (sp.to != null && sp.to != pos && nextChange > sp.to) {\n nextChange = sp.to\n spanEndStyle = \"\"\n }\n if (m.className) { spanStyle += \" \" + m.className }\n if (m.css) { css = (css ? css + \";\" : \"\") + m.css }\n if (m.startStyle && sp.from == pos) { spanStartStyle += \" \" + m.startStyle }\n if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to) }\n if (m.title && !title) { title = m.title }\n if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))\n { collapsed = sp }\n } else if (sp.from > pos && nextChange > sp.from) {\n nextChange = sp.from\n }\n }\n if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)\n { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += \" \" + endStyles[j$1] } } }\n\n if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)\n { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]) } }\n if (collapsed && (collapsed.from || 0) == pos) {\n buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,\n collapsed.marker, collapsed.from == null)\n if (collapsed.to == null) { return }\n if (collapsed.to == pos) { collapsed = false }\n }\n }\n if (pos >= len) { break }\n\n var upto = Math.min(len, nextChange)\n while (true) {\n if (text) {\n var end = pos + text.length\n if (!collapsed) {\n var tokenText = end > upto ? text.slice(0, upto - pos) : text\n builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,\n spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : \"\", title, css)\n }\n if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}\n pos = end\n spanStartStyle = \"\"\n }\n text = allText.slice(at, at = styles[i++])\n style = interpretTokenStyle(styles[i++], builder.cm.options)\n }\n }\n}\n\n\n// These objects are used to represent the visible (currently drawn)\n// part of the document. A LineView may correspond to multiple\n// logical lines, if those are connected by collapsed ranges.\nfunction LineView(doc, line, lineN) {\n // The starting line\n this.line = line\n // Continuing lines, if any\n this.rest = visualLineContinued(line)\n // Number of logical lines in this visual line\n this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1\n this.node = this.text = null\n this.hidden = lineIsHidden(doc, line)\n}\n\n// Create a range of LineView objects for the given lines.\nfunction buildViewArray(cm, from, to) {\n var array = [], nextPos\n for (var pos = from; pos < to; pos = nextPos) {\n var view = new LineView(cm.doc, getLine(cm.doc, pos), pos)\n nextPos = pos + view.size\n array.push(view)\n }\n return array\n}\n\nvar operationGroup = null\n\nfunction pushOperation(op) {\n if (operationGroup) {\n operationGroup.ops.push(op)\n } else {\n op.ownsGroup = operationGroup = {\n ops: [op],\n delayedCallbacks: []\n }\n }\n}\n\nfunction fireCallbacksForOps(group) {\n // Calls delayed callbacks and cursorActivity handlers until no\n // new ones appear\n var callbacks = group.delayedCallbacks, i = 0\n do {\n for (; i < callbacks.length; i++)\n { callbacks[i].call(null) }\n for (var j = 0; j < group.ops.length; j++) {\n var op = group.ops[j]\n if (op.cursorActivityHandlers)\n { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)\n { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm) } }\n }\n } while (i < callbacks.length)\n}\n\nfunction finishOperation(op, endCb) {\n var group = op.ownsGroup\n if (!group) { return }\n\n try { fireCallbacksForOps(group) }\n finally {\n operationGroup = null\n endCb(group)\n }\n}\n\nvar orphanDelayedCallbacks = null\n\n// Often, we want to signal events at a point where we are in the\n// middle of some work, but don't want the handler to start calling\n// other methods on the editor, which might be in an inconsistent\n// state or simply not expect any other events to happen.\n// signalLater looks whether there are any handlers, and schedules\n// them to be executed when the last operation ends, or, if no\n// operation is active, when a timeout fires.\nfunction signalLater(emitter, type /*, values...*/) {\n var arr = getHandlers(emitter, type)\n if (!arr.length) { return }\n var args = Array.prototype.slice.call(arguments, 2), list\n if (operationGroup) {\n list = operationGroup.delayedCallbacks\n } else if (orphanDelayedCallbacks) {\n list = orphanDelayedCallbacks\n } else {\n list = orphanDelayedCallbacks = []\n setTimeout(fireOrphanDelayed, 0)\n }\n var loop = function ( i ) {\n list.push(function () { return arr[i].apply(null, args); })\n };\n\n for (var i = 0; i < arr.length; ++i)\n loop( i );\n}\n\nfunction fireOrphanDelayed() {\n var delayed = orphanDelayedCallbacks\n orphanDelayedCallbacks = null\n for (var i = 0; i < delayed.length; ++i) { delayed[i]() }\n}\n\n// When an aspect of a line changes, a string is added to\n// lineView.changes. This updates the relevant part of the line's\n// DOM structure.\nfunction updateLineForChanges(cm, lineView, lineN, dims) {\n for (var j = 0; j < lineView.changes.length; j++) {\n var type = lineView.changes[j]\n if (type == \"text\") { updateLineText(cm, lineView) }\n else if (type == \"gutter\") { updateLineGutter(cm, lineView, lineN, dims) }\n else if (type == \"class\") { updateLineClasses(cm, lineView) }\n else if (type == \"widget\") { updateLineWidgets(cm, lineView, dims) }\n }\n lineView.changes = null\n}\n\n// Lines with gutter elements, widgets or a background class need to\n// be wrapped, and have the extra elements added to the wrapper div\nfunction ensureLineWrapped(lineView) {\n if (lineView.node == lineView.text) {\n lineView.node = elt(\"div\", null, null, \"position: relative\")\n if (lineView.text.parentNode)\n { lineView.text.parentNode.replaceChild(lineView.node, lineView.text) }\n lineView.node.appendChild(lineView.text)\n if (ie && ie_version < 8) { lineView.node.style.zIndex = 2 }\n }\n return lineView.node\n}\n\nfunction updateLineBackground(cm, lineView) {\n var cls = lineView.bgClass ? lineView.bgClass + \" \" + (lineView.line.bgClass || \"\") : lineView.line.bgClass\n if (cls) { cls += \" CodeMirror-linebackground\" }\n if (lineView.background) {\n if (cls) { lineView.background.className = cls }\n else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null }\n } else if (cls) {\n var wrap = ensureLineWrapped(lineView)\n lineView.background = wrap.insertBefore(elt(\"div\", null, cls), wrap.firstChild)\n cm.display.input.setUneditable(lineView.background)\n }\n}\n\n// Wrapper around buildLineContent which will reuse the structure\n// in display.externalMeasured when possible.\nfunction getLineContent(cm, lineView) {\n var ext = cm.display.externalMeasured\n if (ext && ext.line == lineView.line) {\n cm.display.externalMeasured = null\n lineView.measure = ext.measure\n return ext.built\n }\n return buildLineContent(cm, lineView)\n}\n\n// Redraw the line's text. Interacts with the background and text\n// classes because the mode may output tokens that influence these\n// classes.\nfunction updateLineText(cm, lineView) {\n var cls = lineView.text.className\n var built = getLineContent(cm, lineView)\n if (lineView.text == lineView.node) { lineView.node = built.pre }\n lineView.text.parentNode.replaceChild(built.pre, lineView.text)\n lineView.text = built.pre\n if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {\n lineView.bgClass = built.bgClass\n lineView.textClass = built.textClass\n updateLineClasses(cm, lineView)\n } else if (cls) {\n lineView.text.className = cls\n }\n}\n\nfunction updateLineClasses(cm, lineView) {\n updateLineBackground(cm, lineView)\n if (lineView.line.wrapClass)\n { ensureLineWrapped(lineView).className = lineView.line.wrapClass }\n else if (lineView.node != lineView.text)\n { lineView.node.className = \"\" }\n var textClass = lineView.textClass ? lineView.textClass + \" \" + (lineView.line.textClass || \"\") : lineView.line.textClass\n lineView.text.className = textClass || \"\"\n}\n\nfunction updateLineGutter(cm, lineView, lineN, dims) {\n if (lineView.gutter) {\n lineView.node.removeChild(lineView.gutter)\n lineView.gutter = null\n }\n if (lineView.gutterBackground) {\n lineView.node.removeChild(lineView.gutterBackground)\n lineView.gutterBackground = null\n }\n if (lineView.line.gutterClass) {\n var wrap = ensureLineWrapped(lineView)\n lineView.gutterBackground = elt(\"div\", null, \"CodeMirror-gutter-background \" + lineView.line.gutterClass,\n (\"left: \" + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + \"px; width: \" + (dims.gutterTotalWidth) + \"px\"))\n cm.display.input.setUneditable(lineView.gutterBackground)\n wrap.insertBefore(lineView.gutterBackground, lineView.text)\n }\n var markers = lineView.line.gutterMarkers\n if (cm.options.lineNumbers || markers) {\n var wrap$1 = ensureLineWrapped(lineView)\n var gutterWrap = lineView.gutter = elt(\"div\", null, \"CodeMirror-gutter-wrapper\", (\"left: \" + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + \"px\"))\n cm.display.input.setUneditable(gutterWrap)\n wrap$1.insertBefore(gutterWrap, lineView.text)\n if (lineView.line.gutterClass)\n { gutterWrap.className += \" \" + lineView.line.gutterClass }\n if (cm.options.lineNumbers && (!markers || !markers[\"CodeMirror-linenumbers\"]))\n { lineView.lineNumber = gutterWrap.appendChild(\n elt(\"div\", lineNumberFor(cm.options, lineN),\n \"CodeMirror-linenumber CodeMirror-gutter-elt\",\n (\"left: \" + (dims.gutterLeft[\"CodeMirror-linenumbers\"]) + \"px; width: \" + (cm.display.lineNumInnerWidth) + \"px\"))) }\n if (markers) { for (var k = 0; k < cm.options.gutters.length; ++k) {\n var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]\n if (found)\n { gutterWrap.appendChild(elt(\"div\", [found], \"CodeMirror-gutter-elt\",\n (\"left: \" + (dims.gutterLeft[id]) + \"px; width: \" + (dims.gutterWidth[id]) + \"px\"))) }\n } }\n }\n}\n\nfunction updateLineWidgets(cm, lineView, dims) {\n if (lineView.alignable) { lineView.alignable = null }\n for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {\n next = node.nextSibling\n if (node.className == \"CodeMirror-linewidget\")\n { lineView.node.removeChild(node) }\n }\n insertLineWidgets(cm, lineView, dims)\n}\n\n// Build a line's DOM representation from scratch\nfunction buildLineElement(cm, lineView, lineN, dims) {\n var built = getLineContent(cm, lineView)\n lineView.text = lineView.node = built.pre\n if (built.bgClass) { lineView.bgClass = built.bgClass }\n if (built.textClass) { lineView.textClass = built.textClass }\n\n updateLineClasses(cm, lineView)\n updateLineGutter(cm, lineView, lineN, dims)\n insertLineWidgets(cm, lineView, dims)\n return lineView.node\n}\n\n// A lineView may contain multiple logical lines (when merged by\n// collapsed spans). The widgets for all of them need to be drawn.\nfunction insertLineWidgets(cm, lineView, dims) {\n insertLineWidgetsFor(cm, lineView.line, lineView, dims, true)\n if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)\n { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false) } }\n}\n\nfunction insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {\n if (!line.widgets) { return }\n var wrap = ensureLineWrapped(lineView)\n for (var i = 0, ws = line.widgets; i < ws.length; ++i) {\n var widget = ws[i], node = elt(\"div\", [widget.node], \"CodeMirror-linewidget\")\n if (!widget.handleMouseEvents) { node.setAttribute(\"cm-ignore-events\", \"true\") }\n positionLineWidget(widget, node, lineView, dims)\n cm.display.input.setUneditable(node)\n if (allowAbove && widget.above)\n { wrap.insertBefore(node, lineView.gutter || lineView.text) }\n else\n { wrap.appendChild(node) }\n signalLater(widget, \"redraw\")\n }\n}\n\nfunction positionLineWidget(widget, node, lineView, dims) {\n if (widget.noHScroll) {\n ;(lineView.alignable || (lineView.alignable = [])).push(node)\n var width = dims.wrapperWidth\n node.style.left = dims.fixedPos + \"px\"\n if (!widget.coverGutter) {\n width -= dims.gutterTotalWidth\n node.style.paddingLeft = dims.gutterTotalWidth + \"px\"\n }\n node.style.width = width + \"px\"\n }\n if (widget.coverGutter) {\n node.style.zIndex = 5\n node.style.position = \"relative\"\n if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + \"px\" }\n }\n}\n\nfunction widgetHeight(widget) {\n if (widget.height != null) { return widget.height }\n var cm = widget.doc.cm\n if (!cm) { return 0 }\n if (!contains(document.body, widget.node)) {\n var parentStyle = \"position: relative;\"\n if (widget.coverGutter)\n { parentStyle += \"margin-left: -\" + cm.display.gutters.offsetWidth + \"px;\" }\n if (widget.noHScroll)\n { parentStyle += \"width: \" + cm.display.wrapper.clientWidth + \"px;\" }\n removeChildrenAndAdd(cm.display.measure, elt(\"div\", [widget.node], null, parentStyle))\n }\n return widget.height = widget.node.parentNode.offsetHeight\n}\n\n// Return true when the given mouse event happened in a widget\nfunction eventInWidget(display, e) {\n for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {\n if (!n || (n.nodeType == 1 && n.getAttribute(\"cm-ignore-events\") == \"true\") ||\n (n.parentNode == display.sizer && n != display.mover))\n { return true }\n }\n}\n\n// POSITION MEASUREMENT\n\nfunction paddingTop(display) {return display.lineSpace.offsetTop}\nfunction paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}\nfunction paddingH(display) {\n if (display.cachedPaddingH) { return display.cachedPaddingH }\n var e = removeChildrenAndAdd(display.measure, elt(\"pre\", \"x\"))\n var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle\n var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}\n if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data }\n return data\n}\n\nfunction scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }\nfunction displayWidth(cm) {\n return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth\n}\nfunction displayHeight(cm) {\n return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight\n}\n\n// Ensure the lineView.wrapping.heights array is populated. This is\n// an array of bottom offsets for the lines that make up a drawn\n// line. When lineWrapping is on, there might be more than one\n// height.\nfunction ensureLineHeights(cm, lineView, rect) {\n var wrapping = cm.options.lineWrapping\n var curWidth = wrapping && displayWidth(cm)\n if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {\n var heights = lineView.measure.heights = []\n if (wrapping) {\n lineView.measure.width = curWidth\n var rects = lineView.text.firstChild.getClientRects()\n for (var i = 0; i < rects.length - 1; i++) {\n var cur = rects[i], next = rects[i + 1]\n if (Math.abs(cur.bottom - next.bottom) > 2)\n { heights.push((cur.bottom + next.top) / 2 - rect.top) }\n }\n }\n heights.push(rect.bottom - rect.top)\n }\n}\n\n// Find a line map (mapping character offsets to text nodes) and a\n// measurement cache for the given line number. (A line view might\n// contain multiple lines when collapsed ranges are present.)\nfunction mapFromLineView(lineView, line, lineN) {\n if (lineView.line == line)\n { return {map: lineView.measure.map, cache: lineView.measure.cache} }\n for (var i = 0; i < lineView.rest.length; i++)\n { if (lineView.rest[i] == line)\n { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }\n for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)\n { if (lineNo(lineView.rest[i$1]) > lineN)\n { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }\n}\n\n// Render a line into the hidden node display.externalMeasured. Used\n// when measurement is needed for a line that's not in the viewport.\nfunction updateExternalMeasurement(cm, line) {\n line = visualLine(line)\n var lineN = lineNo(line)\n var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN)\n view.lineN = lineN\n var built = view.built = buildLineContent(cm, view)\n view.text = built.pre\n removeChildrenAndAdd(cm.display.lineMeasure, built.pre)\n return view\n}\n\n// Get a {top, bottom, left, right} box (in line-local coordinates)\n// for a given character.\nfunction measureChar(cm, line, ch, bias) {\n return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)\n}\n\n// Find a line view that corresponds to the given line number.\nfunction findViewForLine(cm, lineN) {\n if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)\n { return cm.display.view[findViewIndex(cm, lineN)] }\n var ext = cm.display.externalMeasured\n if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)\n { return ext }\n}\n\n// Measurement can be split in two steps, the set-up work that\n// applies to the whole line, and the measurement of the actual\n// character. Functions like coordsChar, that need to do a lot of\n// measurements in a row, can thus ensure that the set-up work is\n// only done once.\nfunction prepareMeasureForLine(cm, line) {\n var lineN = lineNo(line)\n var view = findViewForLine(cm, lineN)\n if (view && !view.text) {\n view = null\n } else if (view && view.changes) {\n updateLineForChanges(cm, view, lineN, getDimensions(cm))\n cm.curOp.forceUpdate = true\n }\n if (!view)\n { view = updateExternalMeasurement(cm, line) }\n\n var info = mapFromLineView(view, line, lineN)\n return {\n line: line, view: view, rect: null,\n map: info.map, cache: info.cache, before: info.before,\n hasHeights: false\n }\n}\n\n// Given a prepared measurement object, measures the position of an\n// actual character (or fetches it from the cache).\nfunction measureCharPrepared(cm, prepared, ch, bias, varHeight) {\n if (prepared.before) { ch = -1 }\n var key = ch + (bias || \"\"), found\n if (prepared.cache.hasOwnProperty(key)) {\n found = prepared.cache[key]\n } else {\n if (!prepared.rect)\n { prepared.rect = prepared.view.text.getBoundingClientRect() }\n if (!prepared.hasHeights) {\n ensureLineHeights(cm, prepared.view, prepared.rect)\n prepared.hasHeights = true\n }\n found = measureCharInner(cm, prepared, ch, bias)\n if (!found.bogus) { prepared.cache[key] = found }\n }\n return {left: found.left, right: found.right,\n top: varHeight ? found.rtop : found.top,\n bottom: varHeight ? found.rbottom : found.bottom}\n}\n\nvar nullRect = {left: 0, right: 0, top: 0, bottom: 0}\n\nfunction nodeAndOffsetInLineMap(map, ch, bias) {\n var node, start, end, collapse, mStart, mEnd\n // First, search the line map for the text node corresponding to,\n // or closest to, the target character.\n for (var i = 0; i < map.length; i += 3) {\n mStart = map[i]\n mEnd = map[i + 1]\n if (ch < mStart) {\n start = 0; end = 1\n collapse = \"left\"\n } else if (ch < mEnd) {\n start = ch - mStart\n end = start + 1\n } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {\n end = mEnd - mStart\n start = end - 1\n if (ch >= mEnd) { collapse = \"right\" }\n }\n if (start != null) {\n node = map[i + 2]\n if (mStart == mEnd && bias == (node.insertLeft ? \"left\" : \"right\"))\n { collapse = bias }\n if (bias == \"left\" && start == 0)\n { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {\n node = map[(i -= 3) + 2]\n collapse = \"left\"\n } }\n if (bias == \"right\" && start == mEnd - mStart)\n { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {\n node = map[(i += 3) + 2]\n collapse = \"right\"\n } }\n break\n }\n }\n return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}\n}\n\nfunction getUsefulRect(rects, bias) {\n var rect = nullRect\n if (bias == \"left\") { for (var i = 0; i < rects.length; i++) {\n if ((rect = rects[i]).left != rect.right) { break }\n } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {\n if ((rect = rects[i$1]).left != rect.right) { break }\n } }\n return rect\n}\n\nfunction measureCharInner(cm, prepared, ch, bias) {\n var place = nodeAndOffsetInLineMap(prepared.map, ch, bias)\n var node = place.node, start = place.start, end = place.end, collapse = place.collapse\n\n var rect\n if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.\n for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned\n while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start }\n while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end }\n if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)\n { rect = node.parentNode.getBoundingClientRect() }\n else\n { rect = getUsefulRect(range(node, start, end).getClientRects(), bias) }\n if (rect.left || rect.right || start == 0) { break }\n end = start\n start = start - 1\n collapse = \"right\"\n }\n if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect) }\n } else { // If it is a widget, simply get the box for the whole widget.\n if (start > 0) { collapse = bias = \"right\" }\n var rects\n if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)\n { rect = rects[bias == \"right\" ? rects.length - 1 : 0] }\n else\n { rect = node.getBoundingClientRect() }\n }\n if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {\n var rSpan = node.parentNode.getClientRects()[0]\n if (rSpan)\n { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom} }\n else\n { rect = nullRect }\n }\n\n var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top\n var mid = (rtop + rbot) / 2\n var heights = prepared.view.measure.heights\n var i = 0\n for (; i < heights.length - 1; i++)\n { if (mid < heights[i]) { break } }\n var top = i ? heights[i - 1] : 0, bot = heights[i]\n var result = {left: (collapse == \"right\" ? rect.right : rect.left) - prepared.rect.left,\n right: (collapse == \"left\" ? rect.left : rect.right) - prepared.rect.left,\n top: top, bottom: bot}\n if (!rect.left && !rect.right) { result.bogus = true }\n if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot }\n\n return result\n}\n\n// Work around problem with bounding client rects on ranges being\n// returned incorrectly when zoomed on IE10 and below.\nfunction maybeUpdateRectForZooming(measure, rect) {\n if (!window.screen || screen.logicalXDPI == null ||\n screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))\n { return rect }\n var scaleX = screen.logicalXDPI / screen.deviceXDPI\n var scaleY = screen.logicalYDPI / screen.deviceYDPI\n return {left: rect.left * scaleX, right: rect.right * scaleX,\n top: rect.top * scaleY, bottom: rect.bottom * scaleY}\n}\n\nfunction clearLineMeasurementCacheFor(lineView) {\n if (lineView.measure) {\n lineView.measure.cache = {}\n lineView.measure.heights = null\n if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)\n { lineView.measure.caches[i] = {} } }\n }\n}\n\nfunction clearLineMeasurementCache(cm) {\n cm.display.externalMeasure = null\n removeChildren(cm.display.lineMeasure)\n for (var i = 0; i < cm.display.view.length; i++)\n { clearLineMeasurementCacheFor(cm.display.view[i]) }\n}\n\nfunction clearCaches(cm) {\n clearLineMeasurementCache(cm)\n cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null\n if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true }\n cm.display.lineNumChars = null\n}\n\nfunction pageScrollX() {\n // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206\n // which causes page_Offset and bounding client rects to use\n // different reference viewports and invalidate our calculations.\n if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) }\n return window.pageXOffset || (document.documentElement || document.body).scrollLeft\n}\nfunction pageScrollY() {\n if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) }\n return window.pageYOffset || (document.documentElement || document.body).scrollTop\n}\n\n// Converts a {top, bottom, left, right} box from line-local\n// coordinates into another coordinate system. Context may be one of\n// \"line\", \"div\" (display.lineDiv), \"local\"./null (editor), \"window\",\n// or \"page\".\nfunction intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {\n if (!includeWidgets && lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above) {\n var size = widgetHeight(lineObj.widgets[i])\n rect.top += size; rect.bottom += size\n } } }\n if (context == \"line\") { return rect }\n if (!context) { context = \"local\" }\n var yOff = heightAtLine(lineObj)\n if (context == \"local\") { yOff += paddingTop(cm.display) }\n else { yOff -= cm.display.viewOffset }\n if (context == \"page\" || context == \"window\") {\n var lOff = cm.display.lineSpace.getBoundingClientRect()\n yOff += lOff.top + (context == \"window\" ? 0 : pageScrollY())\n var xOff = lOff.left + (context == \"window\" ? 0 : pageScrollX())\n rect.left += xOff; rect.right += xOff\n }\n rect.top += yOff; rect.bottom += yOff\n return rect\n}\n\n// Coverts a box from \"div\" coords to another coordinate system.\n// Context may be \"window\", \"page\", \"div\", or \"local\"./null.\nfunction fromCoordSystem(cm, coords, context) {\n if (context == \"div\") { return coords }\n var left = coords.left, top = coords.top\n // First move into \"page\" coordinate system\n if (context == \"page\") {\n left -= pageScrollX()\n top -= pageScrollY()\n } else if (context == \"local\" || !context) {\n var localBox = cm.display.sizer.getBoundingClientRect()\n left += localBox.left\n top += localBox.top\n }\n\n var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect()\n return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}\n}\n\nfunction charCoords(cm, pos, context, lineObj, bias) {\n if (!lineObj) { lineObj = getLine(cm.doc, pos.line) }\n return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)\n}\n\n// Returns a box for a given cursor position, which may have an\n// 'other' property containing the position of the secondary cursor\n// on a bidi boundary.\n// A cursor Pos(line, char, \"before\") is on the same visual line as `char - 1`\n// and after `char - 1` in writing order of `char - 1`\n// A cursor Pos(line, char, \"after\") is on the same visual line as `char`\n// and before `char` in writing order of `char`\n// Examples (upper-case letters are RTL, lower-case are LTR):\n// Pos(0, 1, ...)\n// before after\n// ab a|b a|b\n// aB a|B aB|\n// Ab |Ab A|b\n// AB B|A B|A\n// Every position after the last character on a line is considered to stick\n// to the last character on the line.\nfunction cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {\n lineObj = lineObj || getLine(cm.doc, pos.line)\n if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj) }\n function get(ch, right) {\n var m = measureCharPrepared(cm, preparedMeasure, ch, right ? \"right\" : \"left\", varHeight)\n if (right) { m.left = m.right; } else { m.right = m.left }\n return intoCoordSystem(cm, lineObj, m, context)\n }\n var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky\n if (ch >= lineObj.text.length) {\n ch = lineObj.text.length\n sticky = \"before\"\n } else if (ch <= 0) {\n ch = 0\n sticky = \"after\"\n }\n if (!order) { return get(sticky == \"before\" ? ch - 1 : ch, sticky == \"before\") }\n\n function getBidi(ch, partPos, invert) {\n var part = order[partPos], right = (part.level % 2) != 0\n return get(invert ? ch - 1 : ch, right != invert)\n }\n var partPos = getBidiPartAt(order, ch, sticky)\n var other = bidiOther\n var val = getBidi(ch, partPos, sticky == \"before\")\n if (other != null) { val.other = getBidi(ch, other, sticky != \"before\") }\n return val\n}\n\n// Used to cheaply estimate the coordinates for a position. Used for\n// intermediate scroll updates.\nfunction estimateCoords(cm, pos) {\n var left = 0\n pos = clipPos(cm.doc, pos)\n if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch }\n var lineObj = getLine(cm.doc, pos.line)\n var top = heightAtLine(lineObj) + paddingTop(cm.display)\n return {left: left, right: left, top: top, bottom: top + lineObj.height}\n}\n\n// Positions returned by coordsChar contain some extra information.\n// xRel is the relative x position of the input coordinates compared\n// to the found position (so xRel > 0 means the coordinates are to\n// the right of the character position, for example). When outside\n// is true, that means the coordinates lie outside the line's\n// vertical range.\nfunction PosWithInfo(line, ch, sticky, outside, xRel) {\n var pos = Pos(line, ch, sticky)\n pos.xRel = xRel\n if (outside) { pos.outside = true }\n return pos\n}\n\n// Compute the character position closest to the given coordinates.\n// Input must be lineSpace-local (\"div\" coordinate system).\nfunction coordsChar(cm, x, y) {\n var doc = cm.doc\n y += cm.display.viewOffset\n if (y < 0) { return PosWithInfo(doc.first, 0, null, true, -1) }\n var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1\n if (lineN > last)\n { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1) }\n if (x < 0) { x = 0 }\n\n var lineObj = getLine(doc, lineN)\n for (;;) {\n var found = coordsCharInner(cm, lineObj, lineN, x, y)\n var merged = collapsedSpanAtEnd(lineObj)\n var mergedPos = merged && merged.find(0, true)\n if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))\n { lineN = lineNo(lineObj = mergedPos.to.line) }\n else\n { return found }\n }\n}\n\nfunction wrappedLineExtent(cm, lineObj, preparedMeasure, y) {\n var measure = function (ch) { return intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, ch), \"line\"); }\n var end = lineObj.text.length\n var begin = findFirst(function (ch) { return measure(ch - 1).bottom <= y; }, end, 0)\n end = findFirst(function (ch) { return measure(ch).top > y; }, begin, end)\n return {begin: begin, end: end}\n}\n\nfunction wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {\n var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), \"line\").top\n return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)\n}\n\nfunction coordsCharInner(cm, lineObj, lineNo, x, y) {\n y -= heightAtLine(lineObj)\n var begin = 0, end = lineObj.text.length\n var preparedMeasure = prepareMeasureForLine(cm, lineObj)\n var pos\n var order = getOrder(lineObj, cm.doc.direction)\n if (order) {\n if (cm.options.lineWrapping) {\n ;var assign;\n ((assign = wrappedLineExtent(cm, lineObj, preparedMeasure, y), begin = assign.begin, end = assign.end, assign))\n }\n pos = new Pos(lineNo, Math.floor(begin + (end - begin) / 2))\n var beginLeft = cursorCoords(cm, pos, \"line\", lineObj, preparedMeasure).left\n var dir = beginLeft < x ? 1 : -1\n var prevDiff, diff = beginLeft - x, prevPos\n var steps = Math.ceil((end - begin) / 4)\n outer: do {\n prevDiff = diff\n prevPos = pos\n var i = 0\n for (; i < steps; ++i) {\n var prevPos$1 = pos\n pos = moveVisually(cm, lineObj, pos, dir)\n if (pos == null || pos.ch < begin || end <= (pos.sticky == \"before\" ? pos.ch - 1 : pos.ch)) {\n pos = prevPos$1\n break outer\n }\n }\n diff = cursorCoords(cm, pos, \"line\", lineObj, preparedMeasure).left - x\n if (steps > 1) {\n var diff_change_per_step = Math.abs(diff - prevDiff) / steps\n steps = Math.min(steps, Math.ceil(Math.abs(diff) / diff_change_per_step))\n dir = diff < 0 ? 1 : -1\n }\n } while (diff != 0 && (steps > 1 || ((dir < 0) != (diff < 0) && (Math.abs(diff) <= Math.abs(prevDiff)))))\n if (Math.abs(diff) > Math.abs(prevDiff)) {\n if ((diff < 0) == (prevDiff < 0)) { throw new Error(\"Broke out of infinite loop in coordsCharInner\") }\n pos = prevPos\n }\n } else {\n var ch = findFirst(function (ch) {\n var box = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, ch), \"line\")\n if (box.top > y) {\n // For the cursor stickiness\n end = Math.min(ch, end)\n return true\n }\n else if (box.bottom <= y) { return false }\n else if (box.left > x) { return true }\n else if (box.right < x) { return false }\n else { return (x - box.left < box.right - x) }\n }, begin, end)\n ch = skipExtendingChars(lineObj.text, ch, 1)\n pos = new Pos(lineNo, ch, ch == end ? \"before\" : \"after\")\n }\n var coords = cursorCoords(cm, pos, \"line\", lineObj, preparedMeasure)\n if (y < coords.top || coords.bottom < y) { pos.outside = true }\n pos.xRel = x < coords.left ? -1 : (x > coords.right ? 1 : 0)\n return pos\n}\n\nvar measureText\n// Compute the default text height.\nfunction textHeight(display) {\n if (display.cachedTextHeight != null) { return display.cachedTextHeight }\n if (measureText == null) {\n measureText = elt(\"pre\")\n // Measure a bunch of lines, for browsers that compute\n // fractional heights.\n for (var i = 0; i < 49; ++i) {\n measureText.appendChild(document.createTextNode(\"x\"))\n measureText.appendChild(elt(\"br\"))\n }\n measureText.appendChild(document.createTextNode(\"x\"))\n }\n removeChildrenAndAdd(display.measure, measureText)\n var height = measureText.offsetHeight / 50\n if (height > 3) { display.cachedTextHeight = height }\n removeChildren(display.measure)\n return height || 1\n}\n\n// Compute the default character width.\nfunction charWidth(display) {\n if (display.cachedCharWidth != null) { return display.cachedCharWidth }\n var anchor = elt(\"span\", \"xxxxxxxxxx\")\n var pre = elt(\"pre\", [anchor])\n removeChildrenAndAdd(display.measure, pre)\n var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10\n if (width > 2) { display.cachedCharWidth = width }\n return width || 10\n}\n\n// Do a bulk-read of the DOM positions and sizes needed to draw the\n// view, so that we don't interleave reading and writing to the DOM.\nfunction getDimensions(cm) {\n var d = cm.display, left = {}, width = {}\n var gutterLeft = d.gutters.clientLeft\n for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {\n left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft\n width[cm.options.gutters[i]] = n.clientWidth\n }\n return {fixedPos: compensateForHScroll(d),\n gutterTotalWidth: d.gutters.offsetWidth,\n gutterLeft: left,\n gutterWidth: width,\n wrapperWidth: d.wrapper.clientWidth}\n}\n\n// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,\n// but using getBoundingClientRect to get a sub-pixel-accurate\n// result.\nfunction compensateForHScroll(display) {\n return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left\n}\n\n// Returns a function that estimates the height of a line, to use as\n// first approximation until the line becomes visible (and is thus\n// properly measurable).\nfunction estimateHeight(cm) {\n var th = textHeight(cm.display), wrapping = cm.options.lineWrapping\n var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3)\n return function (line) {\n if (lineIsHidden(cm.doc, line)) { return 0 }\n\n var widgetsHeight = 0\n if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {\n if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height }\n } }\n\n if (wrapping)\n { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }\n else\n { return widgetsHeight + th }\n }\n}\n\nfunction estimateLineHeights(cm) {\n var doc = cm.doc, est = estimateHeight(cm)\n doc.iter(function (line) {\n var estHeight = est(line)\n if (estHeight != line.height) { updateLineHeight(line, estHeight) }\n })\n}\n\n// Given a mouse event, find the corresponding position. If liberal\n// is false, it checks whether a gutter or scrollbar was clicked,\n// and returns null if it was. forRect is used by rectangular\n// selections, and tries to estimate a character position even for\n// coordinates beyond the right of the text.\nfunction posFromMouse(cm, e, liberal, forRect) {\n var display = cm.display\n if (!liberal && e_target(e).getAttribute(\"cm-not-content\") == \"true\") { return null }\n\n var x, y, space = display.lineSpace.getBoundingClientRect()\n // Fails unpredictably on IE[67] when mouse is dragged around quickly.\n try { x = e.clientX - space.left; y = e.clientY - space.top }\n catch (e) { return null }\n var coords = coordsChar(cm, x, y), line\n if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {\n var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length\n coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff))\n }\n return coords\n}\n\n// Find the view element corresponding to a given line. Return null\n// when the line isn't visible.\nfunction findViewIndex(cm, n) {\n if (n >= cm.display.viewTo) { return null }\n n -= cm.display.viewFrom\n if (n < 0) { return null }\n var view = cm.display.view\n for (var i = 0; i < view.length; i++) {\n n -= view[i].size\n if (n < 0) { return i }\n }\n}\n\nfunction updateSelection(cm) {\n cm.display.input.showSelection(cm.display.input.prepareSelection())\n}\n\nfunction prepareSelection(cm, primary) {\n var doc = cm.doc, result = {}\n var curFragment = result.cursors = document.createDocumentFragment()\n var selFragment = result.selection = document.createDocumentFragment()\n\n for (var i = 0; i < doc.sel.ranges.length; i++) {\n if (primary === false && i == doc.sel.primIndex) { continue }\n var range = doc.sel.ranges[i]\n if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }\n var collapsed = range.empty()\n if (collapsed || cm.options.showCursorWhenSelecting)\n { drawSelectionCursor(cm, range.head, curFragment) }\n if (!collapsed)\n { drawSelectionRange(cm, range, selFragment) }\n }\n return result\n}\n\n// Draws a cursor for the given range\nfunction drawSelectionCursor(cm, head, output) {\n var pos = cursorCoords(cm, head, \"div\", null, null, !cm.options.singleCursorHeightPerLine)\n\n var cursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor\"))\n cursor.style.left = pos.left + \"px\"\n cursor.style.top = pos.top + \"px\"\n cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + \"px\"\n\n if (pos.other) {\n // Secondary cursor, shown when on a 'jump' in bi-directional text\n var otherCursor = output.appendChild(elt(\"div\", \"\\u00a0\", \"CodeMirror-cursor CodeMirror-secondarycursor\"))\n otherCursor.style.display = \"\"\n otherCursor.style.left = pos.other.left + \"px\"\n otherCursor.style.top = pos.other.top + \"px\"\n otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + \"px\"\n }\n}\n\n// Draws the given range as a highlighted selection\nfunction drawSelectionRange(cm, range, output) {\n var display = cm.display, doc = cm.doc\n var fragment = document.createDocumentFragment()\n var padding = paddingH(cm.display), leftSide = padding.left\n var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right\n\n function add(left, top, width, bottom) {\n if (top < 0) { top = 0 }\n top = Math.round(top)\n bottom = Math.round(bottom)\n fragment.appendChild(elt(\"div\", null, \"CodeMirror-selected\", (\"position: absolute; left: \" + left + \"px;\\n top: \" + top + \"px; width: \" + (width == null ? rightSide - left : width) + \"px;\\n height: \" + (bottom - top) + \"px\")))\n }\n\n function drawForLine(line, fromArg, toArg) {\n var lineObj = getLine(doc, line)\n var lineLen = lineObj.text.length\n var start, end\n function coords(ch, bias) {\n return charCoords(cm, Pos(line, ch), \"div\", lineObj, bias)\n }\n\n iterateBidiSections(getOrder(lineObj, doc.direction), fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir) {\n var leftPos = coords(from, \"left\"), rightPos, left, right\n if (from == to) {\n rightPos = leftPos\n left = right = leftPos.left\n } else {\n rightPos = coords(to - 1, \"right\")\n if (dir == \"rtl\") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp }\n left = leftPos.left\n right = rightPos.right\n }\n if (fromArg == null && from == 0) { left = leftSide }\n if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part\n add(left, leftPos.top, null, leftPos.bottom)\n left = leftSide\n if (leftPos.bottom < rightPos.top) { add(left, leftPos.bottom, null, rightPos.top) }\n }\n if (toArg == null && to == lineLen) { right = rightSide }\n if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)\n { start = leftPos }\n if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)\n { end = rightPos }\n if (left < leftSide + 1) { left = leftSide }\n add(left, rightPos.top, right - left, rightPos.bottom)\n })\n return {start: start, end: end}\n }\n\n var sFrom = range.from(), sTo = range.to()\n if (sFrom.line == sTo.line) {\n drawForLine(sFrom.line, sFrom.ch, sTo.ch)\n } else {\n var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line)\n var singleVLine = visualLine(fromLine) == visualLine(toLine)\n var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end\n var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start\n if (singleVLine) {\n if (leftEnd.top < rightStart.top - 2) {\n add(leftEnd.right, leftEnd.top, null, leftEnd.bottom)\n add(leftSide, rightStart.top, rightStart.left, rightStart.bottom)\n } else {\n add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom)\n }\n }\n if (leftEnd.bottom < rightStart.top)\n { add(leftSide, leftEnd.bottom, null, rightStart.top) }\n }\n\n output.appendChild(fragment)\n}\n\n// Cursor-blinking\nfunction restartBlink(cm) {\n if (!cm.state.focused) { return }\n var display = cm.display\n clearInterval(display.blinker)\n var on = true\n display.cursorDiv.style.visibility = \"\"\n if (cm.options.cursorBlinkRate > 0)\n { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? \"\" : \"hidden\"; },\n cm.options.cursorBlinkRate) }\n else if (cm.options.cursorBlinkRate < 0)\n { display.cursorDiv.style.visibility = \"hidden\" }\n}\n\nfunction ensureFocus(cm) {\n if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm) }\n}\n\nfunction delayBlurEvent(cm) {\n cm.state.delayingBlurEvent = true\n setTimeout(function () { if (cm.state.delayingBlurEvent) {\n cm.state.delayingBlurEvent = false\n onBlur(cm)\n } }, 100)\n}\n\nfunction onFocus(cm, e) {\n if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false }\n\n if (cm.options.readOnly == \"nocursor\") { return }\n if (!cm.state.focused) {\n signal(cm, \"focus\", cm, e)\n cm.state.focused = true\n addClass(cm.display.wrapper, \"CodeMirror-focused\")\n // This test prevents this from firing when a context\n // menu is closed (since the input reset would kill the\n // select-all detection hack)\n if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {\n cm.display.input.reset()\n if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20) } // Issue #1730\n }\n cm.display.input.receivedFocus()\n }\n restartBlink(cm)\n}\nfunction onBlur(cm, e) {\n if (cm.state.delayingBlurEvent) { return }\n\n if (cm.state.focused) {\n signal(cm, \"blur\", cm, e)\n cm.state.focused = false\n rmClass(cm.display.wrapper, \"CodeMirror-focused\")\n }\n clearInterval(cm.display.blinker)\n setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false } }, 150)\n}\n\n// Read the actual heights of the rendered lines, and update their\n// stored heights to match.\nfunction updateHeightsInViewport(cm) {\n var display = cm.display\n var prevBottom = display.lineDiv.offsetTop\n for (var i = 0; i < display.view.length; i++) {\n var cur = display.view[i], height = (void 0)\n if (cur.hidden) { continue }\n if (ie && ie_version < 8) {\n var bot = cur.node.offsetTop + cur.node.offsetHeight\n height = bot - prevBottom\n prevBottom = bot\n } else {\n var box = cur.node.getBoundingClientRect()\n height = box.bottom - box.top\n }\n var diff = cur.line.height - height\n if (height < 2) { height = textHeight(display) }\n if (diff > .005 || diff < -.005) {\n updateLineHeight(cur.line, height)\n updateWidgetHeight(cur.line)\n if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)\n { updateWidgetHeight(cur.rest[j]) } }\n }\n }\n}\n\n// Read and store the height of line widgets associated with the\n// given line.\nfunction updateWidgetHeight(line) {\n if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i)\n { line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight } }\n}\n\n// Compute the lines that are visible in a given viewport (defaults\n// the the current scroll position). viewport may contain top,\n// height, and ensure (see op.scrollToPos) properties.\nfunction visibleLines(display, doc, viewport) {\n var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop\n top = Math.floor(top - paddingTop(display))\n var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight\n\n var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom)\n // Ensure is a {from: {line, ch}, to: {line, ch}} object, and\n // forces those lines into the viewport (if possible).\n if (viewport && viewport.ensure) {\n var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line\n if (ensureFrom < from) {\n from = ensureFrom\n to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)\n } else if (Math.min(ensureTo, doc.lastLine()) >= to) {\n from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight)\n to = ensureTo\n }\n }\n return {from: from, to: Math.max(to, from + 1)}\n}\n\n// Re-align line numbers and gutter marks to compensate for\n// horizontal scrolling.\nfunction alignHorizontally(cm) {\n var display = cm.display, view = display.view\n if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }\n var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft\n var gutterW = display.gutters.offsetWidth, left = comp + \"px\"\n for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {\n if (cm.options.fixedGutter) {\n if (view[i].gutter)\n { view[i].gutter.style.left = left }\n if (view[i].gutterBackground)\n { view[i].gutterBackground.style.left = left }\n }\n var align = view[i].alignable\n if (align) { for (var j = 0; j < align.length; j++)\n { align[j].style.left = left } }\n } }\n if (cm.options.fixedGutter)\n { display.gutters.style.left = (comp + gutterW) + \"px\" }\n}\n\n// Used to ensure that the line number gutter is still the right\n// size for the current document size. Returns true when an update\n// is needed.\nfunction maybeUpdateLineNumberWidth(cm) {\n if (!cm.options.lineNumbers) { return false }\n var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display\n if (last.length != display.lineNumChars) {\n var test = display.measure.appendChild(elt(\"div\", [elt(\"div\", last)],\n \"CodeMirror-linenumber CodeMirror-gutter-elt\"))\n var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW\n display.lineGutter.style.width = \"\"\n display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1\n display.lineNumWidth = display.lineNumInnerWidth + padding\n display.lineNumChars = display.lineNumInnerWidth ? last.length : -1\n display.lineGutter.style.width = display.lineNumWidth + \"px\"\n updateGutterSpace(cm)\n return true\n }\n return false\n}\n\n// SCROLLING THINGS INTO VIEW\n\n// If an editor sits on the top or bottom of the window, partially\n// scrolled out of view, this ensures that the cursor is visible.\nfunction maybeScrollWindow(cm, rect) {\n if (signalDOMEvent(cm, \"scrollCursorIntoView\")) { return }\n\n var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null\n if (rect.top + box.top < 0) { doScroll = true }\n else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false }\n if (doScroll != null && !phantom) {\n var scrollNode = elt(\"div\", \"\\u200b\", null, (\"position: absolute;\\n top: \" + (rect.top - display.viewOffset - paddingTop(cm.display)) + \"px;\\n height: \" + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + \"px;\\n left: \" + (rect.left) + \"px; width: \" + (Math.max(2, rect.right - rect.left)) + \"px;\"))\n cm.display.lineSpace.appendChild(scrollNode)\n scrollNode.scrollIntoView(doScroll)\n cm.display.lineSpace.removeChild(scrollNode)\n }\n}\n\n// Scroll a given position into view (immediately), verifying that\n// it actually became visible (as line heights are accurately\n// measured, the position of something may 'drift' during drawing).\nfunction scrollPosIntoView(cm, pos, end, margin) {\n if (margin == null) { margin = 0 }\n var rect\n if (!cm.options.lineWrapping && pos == end) {\n // Set pos and end to the cursor positions around the character pos sticks to\n // If pos.sticky == \"before\", that is around pos.ch - 1, otherwise around pos.ch\n // If pos == Pos(_, 0, \"before\"), pos and end are unchanged\n pos = pos.ch ? Pos(pos.line, pos.sticky == \"before\" ? pos.ch - 1 : pos.ch, \"after\") : pos\n end = pos.sticky == \"before\" ? Pos(pos.line, pos.ch + 1, \"before\") : pos\n }\n for (var limit = 0; limit < 5; limit++) {\n var changed = false\n var coords = cursorCoords(cm, pos)\n var endCoords = !end || end == pos ? coords : cursorCoords(cm, end)\n rect = {left: Math.min(coords.left, endCoords.left),\n top: Math.min(coords.top, endCoords.top) - margin,\n right: Math.max(coords.left, endCoords.left),\n bottom: Math.max(coords.bottom, endCoords.bottom) + margin}\n var scrollPos = calculateScrollPos(cm, rect)\n var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft\n if (scrollPos.scrollTop != null) {\n updateScrollTop(cm, scrollPos.scrollTop)\n if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true }\n }\n if (scrollPos.scrollLeft != null) {\n setScrollLeft(cm, scrollPos.scrollLeft)\n if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true }\n }\n if (!changed) { break }\n }\n return rect\n}\n\n// Scroll a given set of coordinates into view (immediately).\nfunction scrollIntoView(cm, rect) {\n var scrollPos = calculateScrollPos(cm, rect)\n if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop) }\n if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft) }\n}\n\n// Calculate a new scroll position needed to scroll the given\n// rectangle into view. Returns an object with scrollTop and\n// scrollLeft properties. When these are undefined, the\n// vertical/horizontal position does not need to be adjusted.\nfunction calculateScrollPos(cm, rect) {\n var display = cm.display, snapMargin = textHeight(cm.display)\n if (rect.top < 0) { rect.top = 0 }\n var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop\n var screen = displayHeight(cm), result = {}\n if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen }\n var docBottom = cm.doc.height + paddingVert(display)\n var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin\n if (rect.top < screentop) {\n result.scrollTop = atTop ? 0 : rect.top\n } else if (rect.bottom > screentop + screen) {\n var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen)\n if (newTop != screentop) { result.scrollTop = newTop }\n }\n\n var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft\n var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0)\n var tooWide = rect.right - rect.left > screenw\n if (tooWide) { rect.right = rect.left + screenw }\n if (rect.left < 10)\n { result.scrollLeft = 0 }\n else if (rect.left < screenleft)\n { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)) }\n else if (rect.right > screenw + screenleft - 3)\n { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw }\n return result\n}\n\n// Store a relative adjustment to the scroll position in the current\n// operation (to be applied when the operation finishes).\nfunction addToScrollTop(cm, top) {\n if (top == null) { return }\n resolveScrollToPos(cm)\n cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top\n}\n\n// Make sure that at the end of the operation the current cursor is\n// shown.\nfunction ensureCursorVisible(cm) {\n resolveScrollToPos(cm)\n var cur = cm.getCursor()\n cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin}\n}\n\nfunction scrollToCoords(cm, x, y) {\n if (x != null || y != null) { resolveScrollToPos(cm) }\n if (x != null) { cm.curOp.scrollLeft = x }\n if (y != null) { cm.curOp.scrollTop = y }\n}\n\nfunction scrollToRange(cm, range) {\n resolveScrollToPos(cm)\n cm.curOp.scrollToPos = range\n}\n\n// When an operation has its scrollToPos property set, and another\n// scroll action is applied before the end of the operation, this\n// 'simulates' scrolling that position into view in a cheap way, so\n// that the effect of intermediate scroll commands is not ignored.\nfunction resolveScrollToPos(cm) {\n var range = cm.curOp.scrollToPos\n if (range) {\n cm.curOp.scrollToPos = null\n var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to)\n scrollToCoordsRange(cm, from, to, range.margin)\n }\n}\n\nfunction scrollToCoordsRange(cm, from, to, margin) {\n var sPos = calculateScrollPos(cm, {\n left: Math.min(from.left, to.left),\n top: Math.min(from.top, to.top) - margin,\n right: Math.max(from.right, to.right),\n bottom: Math.max(from.bottom, to.bottom) + margin\n })\n scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop)\n}\n\n// Sync the scrollable area and scrollbars, ensure the viewport\n// covers the visible area.\nfunction updateScrollTop(cm, val) {\n if (Math.abs(cm.doc.scrollTop - val) < 2) { return }\n if (!gecko) { updateDisplaySimple(cm, {top: val}) }\n setScrollTop(cm, val, true)\n if (gecko) { updateDisplaySimple(cm) }\n startWorker(cm, 100)\n}\n\nfunction setScrollTop(cm, val, forceScroll) {\n val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val)\n if (cm.display.scroller.scrollTop == val && !forceScroll) { return }\n cm.doc.scrollTop = val\n cm.display.scrollbars.setScrollTop(val)\n if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val }\n}\n\n// Sync scroller and scrollbar, ensure the gutter elements are\n// aligned.\nfunction setScrollLeft(cm, val, isScroller, forceScroll) {\n val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth)\n if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return }\n cm.doc.scrollLeft = val\n alignHorizontally(cm)\n if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val }\n cm.display.scrollbars.setScrollLeft(val)\n}\n\n// SCROLLBARS\n\n// Prepare DOM reads needed to update the scrollbars. Done in one\n// shot to minimize update/measure roundtrips.\nfunction measureForScrollbars(cm) {\n var d = cm.display, gutterW = d.gutters.offsetWidth\n var docH = Math.round(cm.doc.height + paddingVert(cm.display))\n return {\n clientHeight: d.scroller.clientHeight,\n viewHeight: d.wrapper.clientHeight,\n scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,\n viewWidth: d.wrapper.clientWidth,\n barLeft: cm.options.fixedGutter ? gutterW : 0,\n docHeight: docH,\n scrollHeight: docH + scrollGap(cm) + d.barHeight,\n nativeBarWidth: d.nativeBarWidth,\n gutterWidth: gutterW\n }\n}\n\nvar NativeScrollbars = function(place, scroll, cm) {\n this.cm = cm\n var vert = this.vert = elt(\"div\", [elt(\"div\", null, null, \"min-width: 1px\")], \"CodeMirror-vscrollbar\")\n var horiz = this.horiz = elt(\"div\", [elt(\"div\", null, null, \"height: 100%; min-height: 1px\")], \"CodeMirror-hscrollbar\")\n place(vert); place(horiz)\n\n on(vert, \"scroll\", function () {\n if (vert.clientHeight) { scroll(vert.scrollTop, \"vertical\") }\n })\n on(horiz, \"scroll\", function () {\n if (horiz.clientWidth) { scroll(horiz.scrollLeft, \"horizontal\") }\n })\n\n this.checkedZeroWidth = false\n // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).\n if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = \"18px\" }\n};\n\nNativeScrollbars.prototype.update = function (measure) {\n var needsH = measure.scrollWidth > measure.clientWidth + 1\n var needsV = measure.scrollHeight > measure.clientHeight + 1\n var sWidth = measure.nativeBarWidth\n\n if (needsV) {\n this.vert.style.display = \"block\"\n this.vert.style.bottom = needsH ? sWidth + \"px\" : \"0\"\n var totalHeight = measure.viewHeight - (needsH ? sWidth : 0)\n // A bug in IE8 can cause this value to be negative, so guard it.\n this.vert.firstChild.style.height =\n Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + \"px\"\n } else {\n this.vert.style.display = \"\"\n this.vert.firstChild.style.height = \"0\"\n }\n\n if (needsH) {\n this.horiz.style.display = \"block\"\n this.horiz.style.right = needsV ? sWidth + \"px\" : \"0\"\n this.horiz.style.left = measure.barLeft + \"px\"\n var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0)\n this.horiz.firstChild.style.width =\n Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + \"px\"\n } else {\n this.horiz.style.display = \"\"\n this.horiz.firstChild.style.width = \"0\"\n }\n\n if (!this.checkedZeroWidth && measure.clientHeight > 0) {\n if (sWidth == 0) { this.zeroWidthHack() }\n this.checkedZeroWidth = true\n }\n\n return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}\n};\n\nNativeScrollbars.prototype.setScrollLeft = function (pos) {\n if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos }\n if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, \"horiz\") }\n};\n\nNativeScrollbars.prototype.setScrollTop = function (pos) {\n if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos }\n if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, \"vert\") }\n};\n\nNativeScrollbars.prototype.zeroWidthHack = function () {\n var w = mac && !mac_geMountainLion ? \"12px\" : \"18px\"\n this.horiz.style.height = this.vert.style.width = w\n this.horiz.style.pointerEvents = this.vert.style.pointerEvents = \"none\"\n this.disableHoriz = new Delayed\n this.disableVert = new Delayed\n};\n\nNativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) {\n bar.style.pointerEvents = \"auto\"\n function maybeDisable() {\n // To find out whether the scrollbar is still visible, we\n // check whether the element under the pixel in the bottom\n // right corner of the scrollbar box is the scrollbar box\n // itself (when the bar is still visible) or its filler child\n // (when the bar is hidden). If it is still visible, we keep\n // it enabled, if it's hidden, we disable pointer events.\n var box = bar.getBoundingClientRect()\n var elt = type == \"vert\" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2)\n : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1)\n if (elt != bar) { bar.style.pointerEvents = \"none\" }\n else { delay.set(1000, maybeDisable) }\n }\n delay.set(1000, maybeDisable)\n};\n\nNativeScrollbars.prototype.clear = function () {\n var parent = this.horiz.parentNode\n parent.removeChild(this.horiz)\n parent.removeChild(this.vert)\n};\n\nvar NullScrollbars = function () {};\n\nNullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };\nNullScrollbars.prototype.setScrollLeft = function () {};\nNullScrollbars.prototype.setScrollTop = function () {};\nNullScrollbars.prototype.clear = function () {};\n\nfunction updateScrollbars(cm, measure) {\n if (!measure) { measure = measureForScrollbars(cm) }\n var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight\n updateScrollbarsInner(cm, measure)\n for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {\n if (startWidth != cm.display.barWidth && cm.options.lineWrapping)\n { updateHeightsInViewport(cm) }\n updateScrollbarsInner(cm, measureForScrollbars(cm))\n startWidth = cm.display.barWidth; startHeight = cm.display.barHeight\n }\n}\n\n// Re-synchronize the fake scrollbars with the actual size of the\n// content.\nfunction updateScrollbarsInner(cm, measure) {\n var d = cm.display\n var sizes = d.scrollbars.update(measure)\n\n d.sizer.style.paddingRight = (d.barWidth = sizes.right) + \"px\"\n d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + \"px\"\n d.heightForcer.style.borderBottom = sizes.bottom + \"px solid transparent\"\n\n if (sizes.right && sizes.bottom) {\n d.scrollbarFiller.style.display = \"block\"\n d.scrollbarFiller.style.height = sizes.bottom + \"px\"\n d.scrollbarFiller.style.width = sizes.right + \"px\"\n } else { d.scrollbarFiller.style.display = \"\" }\n if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {\n d.gutterFiller.style.display = \"block\"\n d.gutterFiller.style.height = sizes.bottom + \"px\"\n d.gutterFiller.style.width = measure.gutterWidth + \"px\"\n } else { d.gutterFiller.style.display = \"\" }\n}\n\nvar scrollbarModel = {\"native\": NativeScrollbars, \"null\": NullScrollbars}\n\nfunction initScrollbars(cm) {\n if (cm.display.scrollbars) {\n cm.display.scrollbars.clear()\n if (cm.display.scrollbars.addClass)\n { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass) }\n }\n\n cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {\n cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller)\n // Prevent clicks in the scrollbars from killing focus\n on(node, \"mousedown\", function () {\n if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0) }\n })\n node.setAttribute(\"cm-not-content\", \"true\")\n }, function (pos, axis) {\n if (axis == \"horizontal\") { setScrollLeft(cm, pos) }\n else { updateScrollTop(cm, pos) }\n }, cm)\n if (cm.display.scrollbars.addClass)\n { addClass(cm.display.wrapper, cm.display.scrollbars.addClass) }\n}\n\n// Operations are used to wrap a series of changes to the editor\n// state in such a way that each change won't have to update the\n// cursor and display (which would be awkward, slow, and\n// error-prone). Instead, display updates are batched and then all\n// combined and executed at once.\n\nvar nextOpId = 0\n// Start a new operation.\nfunction startOperation(cm) {\n cm.curOp = {\n cm: cm,\n viewChanged: false, // Flag that indicates that lines might need to be redrawn\n startHeight: cm.doc.height, // Used to detect need to update scrollbar\n forceUpdate: false, // Used to force a redraw\n updateInput: null, // Whether to reset the input textarea\n typing: false, // Whether this reset should be careful to leave existing text (for compositing)\n changeObjs: null, // Accumulated changes, for firing change events\n cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on\n cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already\n selectionChanged: false, // Whether the selection needs to be redrawn\n updateMaxLine: false, // Set when the widest line needs to be determined anew\n scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet\n scrollToPos: null, // Used to scroll to a specific position\n focus: false,\n id: ++nextOpId // Unique ID\n }\n pushOperation(cm.curOp)\n}\n\n// Finish an operation, updating the display and signalling delayed events\nfunction endOperation(cm) {\n var op = cm.curOp\n finishOperation(op, function (group) {\n for (var i = 0; i < group.ops.length; i++)\n { group.ops[i].cm.curOp = null }\n endOperations(group)\n })\n}\n\n// The DOM updates done when an operation finishes are batched so\n// that the minimum number of relayouts are required.\nfunction endOperations(group) {\n var ops = group.ops\n for (var i = 0; i < ops.length; i++) // Read DOM\n { endOperation_R1(ops[i]) }\n for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)\n { endOperation_W1(ops[i$1]) }\n for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM\n { endOperation_R2(ops[i$2]) }\n for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)\n { endOperation_W2(ops[i$3]) }\n for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM\n { endOperation_finish(ops[i$4]) }\n}\n\nfunction endOperation_R1(op) {\n var cm = op.cm, display = cm.display\n maybeClipScrollbars(cm)\n if (op.updateMaxLine) { findMaxLine(cm) }\n\n op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||\n op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||\n op.scrollToPos.to.line >= display.viewTo) ||\n display.maxLineChanged && cm.options.lineWrapping\n op.update = op.mustUpdate &&\n new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate)\n}\n\nfunction endOperation_W1(op) {\n op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update)\n}\n\nfunction endOperation_R2(op) {\n var cm = op.cm, display = cm.display\n if (op.updatedDisplay) { updateHeightsInViewport(cm) }\n\n op.barMeasure = measureForScrollbars(cm)\n\n // If the max line changed since it was last measured, measure it,\n // and ensure the document's width matches it.\n // updateDisplay_W2 will use these properties to do the actual resizing\n if (display.maxLineChanged && !cm.options.lineWrapping) {\n op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3\n cm.display.sizerWidth = op.adjustWidthTo\n op.barMeasure.scrollWidth =\n Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth)\n op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm))\n }\n\n if (op.updatedDisplay || op.selectionChanged)\n { op.preparedSelection = display.input.prepareSelection(op.focus) }\n}\n\nfunction endOperation_W2(op) {\n var cm = op.cm\n\n if (op.adjustWidthTo != null) {\n cm.display.sizer.style.minWidth = op.adjustWidthTo + \"px\"\n if (op.maxScrollLeft < cm.doc.scrollLeft)\n { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true) }\n cm.display.maxLineChanged = false\n }\n\n var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus())\n if (op.preparedSelection)\n { cm.display.input.showSelection(op.preparedSelection, takeFocus) }\n if (op.updatedDisplay || op.startHeight != cm.doc.height)\n { updateScrollbars(cm, op.barMeasure) }\n if (op.updatedDisplay)\n { setDocumentHeight(cm, op.barMeasure) }\n\n if (op.selectionChanged) { restartBlink(cm) }\n\n if (cm.state.focused && op.updateInput)\n { cm.display.input.reset(op.typing) }\n if (takeFocus) { ensureFocus(op.cm) }\n}\n\nfunction endOperation_finish(op) {\n var cm = op.cm, display = cm.display, doc = cm.doc\n\n if (op.updatedDisplay) { postUpdateDisplay(cm, op.update) }\n\n // Abort mouse wheel delta measurement, when scrolling explicitly\n if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))\n { display.wheelStartX = display.wheelStartY = null }\n\n // Propagate the scroll position to the actual DOM scroller\n if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll) }\n\n if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true) }\n // If we need to scroll a specific position into view, do so.\n if (op.scrollToPos) {\n var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),\n clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin)\n maybeScrollWindow(cm, rect)\n }\n\n // Fire events for markers that are hidden/unidden by editing or\n // undoing\n var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers\n if (hidden) { for (var i = 0; i < hidden.length; ++i)\n { if (!hidden[i].lines.length) { signal(hidden[i], \"hide\") } } }\n if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)\n { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], \"unhide\") } } }\n\n if (display.wrapper.offsetHeight)\n { doc.scrollTop = cm.display.scroller.scrollTop }\n\n // Fire change events, and delayed event handlers\n if (op.changeObjs)\n { signal(cm, \"changes\", cm, op.changeObjs) }\n if (op.update)\n { op.update.finish() }\n}\n\n// Run the given function in an operation\nfunction runInOp(cm, f) {\n if (cm.curOp) { return f() }\n startOperation(cm)\n try { return f() }\n finally { endOperation(cm) }\n}\n// Wraps a function in an operation. Returns the wrapped function.\nfunction operation(cm, f) {\n return function() {\n if (cm.curOp) { return f.apply(cm, arguments) }\n startOperation(cm)\n try { return f.apply(cm, arguments) }\n finally { endOperation(cm) }\n }\n}\n// Used to add methods to editor and doc instances, wrapping them in\n// operations.\nfunction methodOp(f) {\n return function() {\n if (this.curOp) { return f.apply(this, arguments) }\n startOperation(this)\n try { return f.apply(this, arguments) }\n finally { endOperation(this) }\n }\n}\nfunction docMethodOp(f) {\n return function() {\n var cm = this.cm\n if (!cm || cm.curOp) { return f.apply(this, arguments) }\n startOperation(cm)\n try { return f.apply(this, arguments) }\n finally { endOperation(cm) }\n }\n}\n\n// Updates the display.view data structure for a given change to the\n// document. From and to are in pre-change coordinates. Lendiff is\n// the amount of lines added or subtracted by the change. This is\n// used for changes that span multiple lines, or change the way\n// lines are divided into visual lines. regLineChange (below)\n// registers single-line changes.\nfunction regChange(cm, from, to, lendiff) {\n if (from == null) { from = cm.doc.first }\n if (to == null) { to = cm.doc.first + cm.doc.size }\n if (!lendiff) { lendiff = 0 }\n\n var display = cm.display\n if (lendiff && to < display.viewTo &&\n (display.updateLineNumbers == null || display.updateLineNumbers > from))\n { display.updateLineNumbers = from }\n\n cm.curOp.viewChanged = true\n\n if (from >= display.viewTo) { // Change after\n if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)\n { resetView(cm) }\n } else if (to <= display.viewFrom) { // Change before\n if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {\n resetView(cm)\n } else {\n display.viewFrom += lendiff\n display.viewTo += lendiff\n }\n } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap\n resetView(cm)\n } else if (from <= display.viewFrom) { // Top overlap\n var cut = viewCuttingPoint(cm, to, to + lendiff, 1)\n if (cut) {\n display.view = display.view.slice(cut.index)\n display.viewFrom = cut.lineN\n display.viewTo += lendiff\n } else {\n resetView(cm)\n }\n } else if (to >= display.viewTo) { // Bottom overlap\n var cut$1 = viewCuttingPoint(cm, from, from, -1)\n if (cut$1) {\n display.view = display.view.slice(0, cut$1.index)\n display.viewTo = cut$1.lineN\n } else {\n resetView(cm)\n }\n } else { // Gap in the middle\n var cutTop = viewCuttingPoint(cm, from, from, -1)\n var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1)\n if (cutTop && cutBot) {\n display.view = display.view.slice(0, cutTop.index)\n .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))\n .concat(display.view.slice(cutBot.index))\n display.viewTo += lendiff\n } else {\n resetView(cm)\n }\n }\n\n var ext = display.externalMeasured\n if (ext) {\n if (to < ext.lineN)\n { ext.lineN += lendiff }\n else if (from < ext.lineN + ext.size)\n { display.externalMeasured = null }\n }\n}\n\n// Register a change to a single line. Type must be one of \"text\",\n// \"gutter\", \"class\", \"widget\"\nfunction regLineChange(cm, line, type) {\n cm.curOp.viewChanged = true\n var display = cm.display, ext = cm.display.externalMeasured\n if (ext && line >= ext.lineN && line < ext.lineN + ext.size)\n { display.externalMeasured = null }\n\n if (line < display.viewFrom || line >= display.viewTo) { return }\n var lineView = display.view[findViewIndex(cm, line)]\n if (lineView.node == null) { return }\n var arr = lineView.changes || (lineView.changes = [])\n if (indexOf(arr, type) == -1) { arr.push(type) }\n}\n\n// Clear the view.\nfunction resetView(cm) {\n cm.display.viewFrom = cm.display.viewTo = cm.doc.first\n cm.display.view = []\n cm.display.viewOffset = 0\n}\n\nfunction viewCuttingPoint(cm, oldN, newN, dir) {\n var index = findViewIndex(cm, oldN), diff, view = cm.display.view\n if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)\n { return {index: index, lineN: newN} }\n var n = cm.display.viewFrom\n for (var i = 0; i < index; i++)\n { n += view[i].size }\n if (n != oldN) {\n if (dir > 0) {\n if (index == view.length - 1) { return null }\n diff = (n + view[index].size) - oldN\n index++\n } else {\n diff = n - oldN\n }\n oldN += diff; newN += diff\n }\n while (visualLineNo(cm.doc, newN) != newN) {\n if (index == (dir < 0 ? 0 : view.length - 1)) { return null }\n newN += dir * view[index - (dir < 0 ? 1 : 0)].size\n index += dir\n }\n return {index: index, lineN: newN}\n}\n\n// Force the view to cover a given range, adding empty view element\n// or clipping off existing ones as needed.\nfunction adjustView(cm, from, to) {\n var display = cm.display, view = display.view\n if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {\n display.view = buildViewArray(cm, from, to)\n display.viewFrom = from\n } else {\n if (display.viewFrom > from)\n { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view) }\n else if (display.viewFrom < from)\n { display.view = display.view.slice(findViewIndex(cm, from)) }\n display.viewFrom = from\n if (display.viewTo < to)\n { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)) }\n else if (display.viewTo > to)\n { display.view = display.view.slice(0, findViewIndex(cm, to)) }\n }\n display.viewTo = to\n}\n\n// Count the number of lines in the view whose DOM representation is\n// out of date (or nonexistent).\nfunction countDirtyView(cm) {\n var view = cm.display.view, dirty = 0\n for (var i = 0; i < view.length; i++) {\n var lineView = view[i]\n if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty }\n }\n return dirty\n}\n\n// HIGHLIGHT WORKER\n\nfunction startWorker(cm, time) {\n if (cm.doc.highlightFrontier < cm.display.viewTo)\n { cm.state.highlight.set(time, bind(highlightWorker, cm)) }\n}\n\nfunction highlightWorker(cm) {\n var doc = cm.doc\n if (doc.highlightFrontier >= cm.display.viewTo) { return }\n var end = +new Date + cm.options.workTime\n var context = getContextBefore(cm, doc.highlightFrontier)\n var changedLines = []\n\n doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {\n if (context.line >= cm.display.viewFrom) { // Visible\n var oldStyles = line.styles\n var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null\n var highlighted = highlightLine(cm, line, context, true)\n if (resetState) { context.state = resetState }\n line.styles = highlighted.styles\n var oldCls = line.styleClasses, newCls = highlighted.classes\n if (newCls) { line.styleClasses = newCls }\n else if (oldCls) { line.styleClasses = null }\n var ischange = !oldStyles || oldStyles.length != line.styles.length ||\n oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass)\n for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i] }\n if (ischange) { changedLines.push(context.line) }\n line.stateAfter = context.save()\n context.nextLine()\n } else {\n if (line.text.length <= cm.options.maxHighlightLength)\n { processLine(cm, line.text, context) }\n line.stateAfter = context.line % 5 == 0 ? context.save() : null\n context.nextLine()\n }\n if (+new Date > end) {\n startWorker(cm, cm.options.workDelay)\n return true\n }\n })\n doc.highlightFrontier = context.line\n doc.modeFrontier = Math.max(doc.modeFrontier, context.line)\n if (changedLines.length) { runInOp(cm, function () {\n for (var i = 0; i < changedLines.length; i++)\n { regLineChange(cm, changedLines[i], \"text\") }\n }) }\n}\n\n// DISPLAY DRAWING\n\nvar DisplayUpdate = function(cm, viewport, force) {\n var display = cm.display\n\n this.viewport = viewport\n // Store some values that we'll need later (but don't want to force a relayout for)\n this.visible = visibleLines(display, cm.doc, viewport)\n this.editorIsHidden = !display.wrapper.offsetWidth\n this.wrapperHeight = display.wrapper.clientHeight\n this.wrapperWidth = display.wrapper.clientWidth\n this.oldDisplayWidth = displayWidth(cm)\n this.force = force\n this.dims = getDimensions(cm)\n this.events = []\n};\n\nDisplayUpdate.prototype.signal = function (emitter, type) {\n if (hasHandler(emitter, type))\n { this.events.push(arguments) }\n};\nDisplayUpdate.prototype.finish = function () {\n var this$1 = this;\n\n for (var i = 0; i < this.events.length; i++)\n { signal.apply(null, this$1.events[i]) }\n};\n\nfunction maybeClipScrollbars(cm) {\n var display = cm.display\n if (!display.scrollbarsClipped && display.scroller.offsetWidth) {\n display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth\n display.heightForcer.style.height = scrollGap(cm) + \"px\"\n display.sizer.style.marginBottom = -display.nativeBarWidth + \"px\"\n display.sizer.style.borderRightWidth = scrollGap(cm) + \"px\"\n display.scrollbarsClipped = true\n }\n}\n\nfunction selectionSnapshot(cm) {\n if (cm.hasFocus()) { return null }\n var active = activeElt()\n if (!active || !contains(cm.display.lineDiv, active)) { return null }\n var result = {activeElt: active}\n if (window.getSelection) {\n var sel = window.getSelection()\n if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) {\n result.anchorNode = sel.anchorNode\n result.anchorOffset = sel.anchorOffset\n result.focusNode = sel.focusNode\n result.focusOffset = sel.focusOffset\n }\n }\n return result\n}\n\nfunction restoreSelection(snapshot) {\n if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return }\n snapshot.activeElt.focus()\n if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) {\n var sel = window.getSelection(), range = document.createRange()\n range.setEnd(snapshot.anchorNode, snapshot.anchorOffset)\n range.collapse(false)\n sel.removeAllRanges()\n sel.addRange(range)\n sel.extend(snapshot.focusNode, snapshot.focusOffset)\n }\n}\n\n// Does the actual updating of the line display. Bails out\n// (returning false) when there is nothing to be done and forced is\n// false.\nfunction updateDisplayIfNeeded(cm, update) {\n var display = cm.display, doc = cm.doc\n\n if (update.editorIsHidden) {\n resetView(cm)\n return false\n }\n\n // Bail out if the visible area is already rendered and nothing changed.\n if (!update.force &&\n update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&\n (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&\n display.renderedView == display.view && countDirtyView(cm) == 0)\n { return false }\n\n if (maybeUpdateLineNumberWidth(cm)) {\n resetView(cm)\n update.dims = getDimensions(cm)\n }\n\n // Compute a suitable new viewport (from & to)\n var end = doc.first + doc.size\n var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first)\n var to = Math.min(end, update.visible.to + cm.options.viewportMargin)\n if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom) }\n if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo) }\n if (sawCollapsedSpans) {\n from = visualLineNo(cm.doc, from)\n to = visualLineEndNo(cm.doc, to)\n }\n\n var different = from != display.viewFrom || to != display.viewTo ||\n display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth\n adjustView(cm, from, to)\n\n display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom))\n // Position the mover div to align with the current scroll position\n cm.display.mover.style.top = display.viewOffset + \"px\"\n\n var toUpdate = countDirtyView(cm)\n if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&\n (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))\n { return false }\n\n // For big changes, we hide the enclosing element during the\n // update, since that speeds up the operations on most browsers.\n var selSnapshot = selectionSnapshot(cm)\n if (toUpdate > 4) { display.lineDiv.style.display = \"none\" }\n patchDisplay(cm, display.updateLineNumbers, update.dims)\n if (toUpdate > 4) { display.lineDiv.style.display = \"\" }\n display.renderedView = display.view\n // There might have been a widget with a focused element that got\n // hidden or updated, if so re-focus it.\n restoreSelection(selSnapshot)\n\n // Prevent selection and cursors from interfering with the scroll\n // width and height.\n removeChildren(display.cursorDiv)\n removeChildren(display.selectionDiv)\n display.gutters.style.height = display.sizer.style.minHeight = 0\n\n if (different) {\n display.lastWrapHeight = update.wrapperHeight\n display.lastWrapWidth = update.wrapperWidth\n startWorker(cm, 400)\n }\n\n display.updateLineNumbers = null\n\n return true\n}\n\nfunction postUpdateDisplay(cm, update) {\n var viewport = update.viewport\n\n for (var first = true;; first = false) {\n if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {\n // Clip forced viewport to actual scrollable area.\n if (viewport && viewport.top != null)\n { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)} }\n // Updated line heights might result in the drawn area not\n // actually covering the viewport. Keep looping until it does.\n update.visible = visibleLines(cm.display, cm.doc, viewport)\n if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)\n { break }\n }\n if (!updateDisplayIfNeeded(cm, update)) { break }\n updateHeightsInViewport(cm)\n var barMeasure = measureForScrollbars(cm)\n updateSelection(cm)\n updateScrollbars(cm, barMeasure)\n setDocumentHeight(cm, barMeasure)\n update.force = false\n }\n\n update.signal(cm, \"update\", cm)\n if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {\n update.signal(cm, \"viewportChange\", cm, cm.display.viewFrom, cm.display.viewTo)\n cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo\n }\n}\n\nfunction updateDisplaySimple(cm, viewport) {\n var update = new DisplayUpdate(cm, viewport)\n if (updateDisplayIfNeeded(cm, update)) {\n updateHeightsInViewport(cm)\n postUpdateDisplay(cm, update)\n var barMeasure = measureForScrollbars(cm)\n updateSelection(cm)\n updateScrollbars(cm, barMeasure)\n setDocumentHeight(cm, barMeasure)\n update.finish()\n }\n}\n\n// Sync the actual display DOM structure with display.view, removing\n// nodes for lines that are no longer in view, and creating the ones\n// that are not there yet, and updating the ones that are out of\n// date.\nfunction patchDisplay(cm, updateNumbersFrom, dims) {\n var display = cm.display, lineNumbers = cm.options.lineNumbers\n var container = display.lineDiv, cur = container.firstChild\n\n function rm(node) {\n var next = node.nextSibling\n // Works around a throw-scroll bug in OS X Webkit\n if (webkit && mac && cm.display.currentWheelTarget == node)\n { node.style.display = \"none\" }\n else\n { node.parentNode.removeChild(node) }\n return next\n }\n\n var view = display.view, lineN = display.viewFrom\n // Loop over the elements in the view, syncing cur (the DOM nodes\n // in display.lineDiv) with the view as we go.\n for (var i = 0; i < view.length; i++) {\n var lineView = view[i]\n if (lineView.hidden) {\n } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet\n var node = buildLineElement(cm, lineView, lineN, dims)\n container.insertBefore(node, cur)\n } else { // Already drawn\n while (cur != lineView.node) { cur = rm(cur) }\n var updateNumber = lineNumbers && updateNumbersFrom != null &&\n updateNumbersFrom <= lineN && lineView.lineNumber\n if (lineView.changes) {\n if (indexOf(lineView.changes, \"gutter\") > -1) { updateNumber = false }\n updateLineForChanges(cm, lineView, lineN, dims)\n }\n if (updateNumber) {\n removeChildren(lineView.lineNumber)\n lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)))\n }\n cur = lineView.node.nextSibling\n }\n lineN += lineView.size\n }\n while (cur) { cur = rm(cur) }\n}\n\nfunction updateGutterSpace(cm) {\n var width = cm.display.gutters.offsetWidth\n cm.display.sizer.style.marginLeft = width + \"px\"\n}\n\nfunction setDocumentHeight(cm, measure) {\n cm.display.sizer.style.minHeight = measure.docHeight + \"px\"\n cm.display.heightForcer.style.top = measure.docHeight + \"px\"\n cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + \"px\"\n}\n\n// Rebuild the gutter elements, ensure the margin to the left of the\n// code matches their width.\nfunction updateGutters(cm) {\n var gutters = cm.display.gutters, specs = cm.options.gutters\n removeChildren(gutters)\n var i = 0\n for (; i < specs.length; ++i) {\n var gutterClass = specs[i]\n var gElt = gutters.appendChild(elt(\"div\", null, \"CodeMirror-gutter \" + gutterClass))\n if (gutterClass == \"CodeMirror-linenumbers\") {\n cm.display.lineGutter = gElt\n gElt.style.width = (cm.display.lineNumWidth || 1) + \"px\"\n }\n }\n gutters.style.display = i ? \"\" : \"none\"\n updateGutterSpace(cm)\n}\n\n// Make sure the gutters options contains the element\n// \"CodeMirror-linenumbers\" when the lineNumbers option is true.\nfunction setGuttersForLineNumbers(options) {\n var found = indexOf(options.gutters, \"CodeMirror-linenumbers\")\n if (found == -1 && options.lineNumbers) {\n options.gutters = options.gutters.concat([\"CodeMirror-linenumbers\"])\n } else if (found > -1 && !options.lineNumbers) {\n options.gutters = options.gutters.slice(0)\n options.gutters.splice(found, 1)\n }\n}\n\nvar wheelSamples = 0;\nvar wheelPixelsPerUnit = null;\n// Fill in a browser-detected starting value on browsers where we\n// know one. These don't have to be accurate -- the result of them\n// being wrong would just be a slight flicker on the first wheel\n// scroll (if it is large enough).\nif (ie) { wheelPixelsPerUnit = -.53 }\nelse if (gecko) { wheelPixelsPerUnit = 15 }\nelse if (chrome) { wheelPixelsPerUnit = -.7 }\nelse if (safari) { wheelPixelsPerUnit = -1/3 }\n\nfunction wheelEventDelta(e) {\n var dx = e.wheelDeltaX, dy = e.wheelDeltaY\n if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail }\n if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail }\n else if (dy == null) { dy = e.wheelDelta }\n return {x: dx, y: dy}\n}\nfunction wheelEventPixels(e) {\n var delta = wheelEventDelta(e)\n delta.x *= wheelPixelsPerUnit\n delta.y *= wheelPixelsPerUnit\n return delta\n}\n\nfunction onScrollWheel(cm, e) {\n var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y\n\n var display = cm.display, scroll = display.scroller\n // Quit if there's nothing to scroll here\n var canScrollX = scroll.scrollWidth > scroll.clientWidth\n var canScrollY = scroll.scrollHeight > scroll.clientHeight\n if (!(dx && canScrollX || dy && canScrollY)) { return }\n\n // Webkit browsers on OS X abort momentum scrolls when the target\n // of the scroll event is removed from the scrollable element.\n // This hack (see related code in patchDisplay) makes sure the\n // element is kept around.\n if (dy && mac && webkit) {\n outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {\n for (var i = 0; i < view.length; i++) {\n if (view[i].node == cur) {\n cm.display.currentWheelTarget = cur\n break outer\n }\n }\n }\n }\n\n // On some browsers, horizontal scrolling will cause redraws to\n // happen before the gutter has been realigned, causing it to\n // wriggle around in a most unseemly way. When we have an\n // estimated pixels/delta value, we just handle horizontal\n // scrolling entirely here. It'll be slightly off from native, but\n // better than glitching out.\n if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {\n if (dy && canScrollY)\n { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)) }\n setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit))\n // Only prevent default scrolling if vertical scrolling is\n // actually possible. Otherwise, it causes vertical scroll\n // jitter on OSX trackpads when deltaX is small and deltaY\n // is large (issue #3579)\n if (!dy || (dy && canScrollY))\n { e_preventDefault(e) }\n display.wheelStartX = null // Abort measurement, if in progress\n return\n }\n\n // 'Project' the visible viewport to cover the area that is being\n // scrolled into view (if we know enough to estimate it).\n if (dy && wheelPixelsPerUnit != null) {\n var pixels = dy * wheelPixelsPerUnit\n var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight\n if (pixels < 0) { top = Math.max(0, top + pixels - 50) }\n else { bot = Math.min(cm.doc.height, bot + pixels + 50) }\n updateDisplaySimple(cm, {top: top, bottom: bot})\n }\n\n if (wheelSamples < 20) {\n if (display.wheelStartX == null) {\n display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop\n display.wheelDX = dx; display.wheelDY = dy\n setTimeout(function () {\n if (display.wheelStartX == null) { return }\n var movedX = scroll.scrollLeft - display.wheelStartX\n var movedY = scroll.scrollTop - display.wheelStartY\n var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||\n (movedX && display.wheelDX && movedX / display.wheelDX)\n display.wheelStartX = display.wheelStartY = null\n if (!sample) { return }\n wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1)\n ++wheelSamples\n }, 200)\n } else {\n display.wheelDX += dx; display.wheelDY += dy\n }\n }\n}\n\n// Selection objects are immutable. A new one is created every time\n// the selection changes. A selection is one or more non-overlapping\n// (and non-touching) ranges, sorted, and an integer that indicates\n// which one is the primary selection (the one that's scrolled into\n// view, that getCursor returns, etc).\nvar Selection = function(ranges, primIndex) {\n this.ranges = ranges\n this.primIndex = primIndex\n};\n\nSelection.prototype.primary = function () { return this.ranges[this.primIndex] };\n\nSelection.prototype.equals = function (other) {\n var this$1 = this;\n\n if (other == this) { return true }\n if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }\n for (var i = 0; i < this.ranges.length; i++) {\n var here = this$1.ranges[i], there = other.ranges[i]\n if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }\n }\n return true\n};\n\nSelection.prototype.deepCopy = function () {\n var this$1 = this;\n\n var out = []\n for (var i = 0; i < this.ranges.length; i++)\n { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)) }\n return new Selection(out, this.primIndex)\n};\n\nSelection.prototype.somethingSelected = function () {\n var this$1 = this;\n\n for (var i = 0; i < this.ranges.length; i++)\n { if (!this$1.ranges[i].empty()) { return true } }\n return false\n};\n\nSelection.prototype.contains = function (pos, end) {\n var this$1 = this;\n\n if (!end) { end = pos }\n for (var i = 0; i < this.ranges.length; i++) {\n var range = this$1.ranges[i]\n if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)\n { return i }\n }\n return -1\n};\n\nvar Range = function(anchor, head) {\n this.anchor = anchor; this.head = head\n};\n\nRange.prototype.from = function () { return minPos(this.anchor, this.head) };\nRange.prototype.to = function () { return maxPos(this.anchor, this.head) };\nRange.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };\n\n// Take an unsorted, potentially overlapping set of ranges, and\n// build a selection out of it. 'Consumes' ranges array (modifying\n// it).\nfunction normalizeSelection(ranges, primIndex) {\n var prim = ranges[primIndex]\n ranges.sort(function (a, b) { return cmp(a.from(), b.from()); })\n primIndex = indexOf(ranges, prim)\n for (var i = 1; i < ranges.length; i++) {\n var cur = ranges[i], prev = ranges[i - 1]\n if (cmp(prev.to(), cur.from()) >= 0) {\n var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to())\n var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head\n if (i <= primIndex) { --primIndex }\n ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to))\n }\n }\n return new Selection(ranges, primIndex)\n}\n\nfunction simpleSelection(anchor, head) {\n return new Selection([new Range(anchor, head || anchor)], 0)\n}\n\n// Compute the position of the end of a change (its 'to' property\n// refers to the pre-change end).\nfunction changeEnd(change) {\n if (!change.text) { return change.to }\n return Pos(change.from.line + change.text.length - 1,\n lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))\n}\n\n// Adjust a position to refer to the post-change position of the\n// same text, or the end of the change if the change covers it.\nfunction adjustForChange(pos, change) {\n if (cmp(pos, change.from) < 0) { return pos }\n if (cmp(pos, change.to) <= 0) { return changeEnd(change) }\n\n var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch\n if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch }\n return Pos(line, ch)\n}\n\nfunction computeSelAfterChange(doc, change) {\n var out = []\n for (var i = 0; i < doc.sel.ranges.length; i++) {\n var range = doc.sel.ranges[i]\n out.push(new Range(adjustForChange(range.anchor, change),\n adjustForChange(range.head, change)))\n }\n return normalizeSelection(out, doc.sel.primIndex)\n}\n\nfunction offsetPos(pos, old, nw) {\n if (pos.line == old.line)\n { return Pos(nw.line, pos.ch - old.ch + nw.ch) }\n else\n { return Pos(nw.line + (pos.line - old.line), pos.ch) }\n}\n\n// Used by replaceSelections to allow moving the selection to the\n// start or around the replaced test. Hint may be \"start\" or \"around\".\nfunction computeReplacedSel(doc, changes, hint) {\n var out = []\n var oldPrev = Pos(doc.first, 0), newPrev = oldPrev\n for (var i = 0; i < changes.length; i++) {\n var change = changes[i]\n var from = offsetPos(change.from, oldPrev, newPrev)\n var to = offsetPos(changeEnd(change), oldPrev, newPrev)\n oldPrev = change.to\n newPrev = to\n if (hint == \"around\") {\n var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0\n out[i] = new Range(inv ? to : from, inv ? from : to)\n } else {\n out[i] = new Range(from, from)\n }\n }\n return new Selection(out, doc.sel.primIndex)\n}\n\n// Used to get the editor into a consistent state again when options change.\n\nfunction loadMode(cm) {\n cm.doc.mode = getMode(cm.options, cm.doc.modeOption)\n resetModeState(cm)\n}\n\nfunction resetModeState(cm) {\n cm.doc.iter(function (line) {\n if (line.stateAfter) { line.stateAfter = null }\n if (line.styles) { line.styles = null }\n })\n cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first\n startWorker(cm, 100)\n cm.state.modeGen++\n if (cm.curOp) { regChange(cm) }\n}\n\n// DOCUMENT DATA STRUCTURE\n\n// By default, updates that start and end at the beginning of a line\n// are treated specially, in order to make the association of line\n// widgets and marker elements with the text behave more intuitive.\nfunction isWholeLineUpdate(doc, change) {\n return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == \"\" &&\n (!doc.cm || doc.cm.options.wholeLineUpdateBefore)\n}\n\n// Perform a change on the document data structure.\nfunction updateDoc(doc, change, markedSpans, estimateHeight) {\n function spansFor(n) {return markedSpans ? markedSpans[n] : null}\n function update(line, text, spans) {\n updateLine(line, text, spans, estimateHeight)\n signalLater(line, \"change\", line, change)\n }\n function linesFor(start, end) {\n var result = []\n for (var i = start; i < end; ++i)\n { result.push(new Line(text[i], spansFor(i), estimateHeight)) }\n return result\n }\n\n var from = change.from, to = change.to, text = change.text\n var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line)\n var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line\n\n // Adjust the line structure\n if (change.full) {\n doc.insert(0, linesFor(0, text.length))\n doc.remove(text.length, doc.size - text.length)\n } else if (isWholeLineUpdate(doc, change)) {\n // This is a whole-line replace. Treated specially to make\n // sure line objects move the way they are supposed to.\n var added = linesFor(0, text.length - 1)\n update(lastLine, lastLine.text, lastSpans)\n if (nlines) { doc.remove(from.line, nlines) }\n if (added.length) { doc.insert(from.line, added) }\n } else if (firstLine == lastLine) {\n if (text.length == 1) {\n update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans)\n } else {\n var added$1 = linesFor(1, text.length - 1)\n added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight))\n update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))\n doc.insert(from.line + 1, added$1)\n }\n } else if (text.length == 1) {\n update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0))\n doc.remove(from.line + 1, nlines)\n } else {\n update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))\n update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans)\n var added$2 = linesFor(1, text.length - 1)\n if (nlines > 1) { doc.remove(from.line + 1, nlines - 1) }\n doc.insert(from.line + 1, added$2)\n }\n\n signalLater(doc, \"change\", doc, change)\n}\n\n// Call f for all linked documents.\nfunction linkedDocs(doc, f, sharedHistOnly) {\n function propagate(doc, skip, sharedHist) {\n if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {\n var rel = doc.linked[i]\n if (rel.doc == skip) { continue }\n var shared = sharedHist && rel.sharedHist\n if (sharedHistOnly && !shared) { continue }\n f(rel.doc, shared)\n propagate(rel.doc, doc, shared)\n } }\n }\n propagate(doc, null, true)\n}\n\n// Attach a document to an editor.\nfunction attachDoc(cm, doc) {\n if (doc.cm) { throw new Error(\"This document is already in use.\") }\n cm.doc = doc\n doc.cm = cm\n estimateLineHeights(cm)\n loadMode(cm)\n setDirectionClass(cm)\n if (!cm.options.lineWrapping) { findMaxLine(cm) }\n cm.options.mode = doc.modeOption\n regChange(cm)\n}\n\nfunction setDirectionClass(cm) {\n ;(cm.doc.direction == \"rtl\" ? addClass : rmClass)(cm.display.lineDiv, \"CodeMirror-rtl\")\n}\n\nfunction directionChanged(cm) {\n runInOp(cm, function () {\n setDirectionClass(cm)\n regChange(cm)\n })\n}\n\nfunction History(startGen) {\n // Arrays of change events and selections. Doing something adds an\n // event to done and clears undo. Undoing moves events from done\n // to undone, redoing moves them in the other direction.\n this.done = []; this.undone = []\n this.undoDepth = Infinity\n // Used to track when changes can be merged into a single undo\n // event\n this.lastModTime = this.lastSelTime = 0\n this.lastOp = this.lastSelOp = null\n this.lastOrigin = this.lastSelOrigin = null\n // Used by the isClean() method\n this.generation = this.maxGeneration = startGen || 1\n}\n\n// Create a history change event from an updateDoc-style change\n// object.\nfunction historyChangeFromChange(doc, change) {\n var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}\n attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1)\n linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true)\n return histChange\n}\n\n// Pop all selection events off the end of a history array. Stop at\n// a change event.\nfunction clearSelectionEvents(array) {\n while (array.length) {\n var last = lst(array)\n if (last.ranges) { array.pop() }\n else { break }\n }\n}\n\n// Find the top change event in the history. Pop off selection\n// events that are in the way.\nfunction lastChangeEvent(hist, force) {\n if (force) {\n clearSelectionEvents(hist.done)\n return lst(hist.done)\n } else if (hist.done.length && !lst(hist.done).ranges) {\n return lst(hist.done)\n } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {\n hist.done.pop()\n return lst(hist.done)\n }\n}\n\n// Register a change in the history. Merges changes that are within\n// a single operation, or are close together with an origin that\n// allows merging (starting with \"+\") into a single event.\nfunction addChangeToHistory(doc, change, selAfter, opId) {\n var hist = doc.history\n hist.undone.length = 0\n var time = +new Date, cur\n var last\n\n if ((hist.lastOp == opId ||\n hist.lastOrigin == change.origin && change.origin &&\n ((change.origin.charAt(0) == \"+\" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||\n change.origin.charAt(0) == \"*\")) &&\n (cur = lastChangeEvent(hist, hist.lastOp == opId))) {\n // Merge this change into the last event\n last = lst(cur.changes)\n if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {\n // Optimized case for simple insertion -- don't want to add\n // new changesets for every character typed\n last.to = changeEnd(change)\n } else {\n // Add new sub-event\n cur.changes.push(historyChangeFromChange(doc, change))\n }\n } else {\n // Can not be merged, start a new event.\n var before = lst(hist.done)\n if (!before || !before.ranges)\n { pushSelectionToHistory(doc.sel, hist.done) }\n cur = {changes: [historyChangeFromChange(doc, change)],\n generation: hist.generation}\n hist.done.push(cur)\n while (hist.done.length > hist.undoDepth) {\n hist.done.shift()\n if (!hist.done[0].ranges) { hist.done.shift() }\n }\n }\n hist.done.push(selAfter)\n hist.generation = ++hist.maxGeneration\n hist.lastModTime = hist.lastSelTime = time\n hist.lastOp = hist.lastSelOp = opId\n hist.lastOrigin = hist.lastSelOrigin = change.origin\n\n if (!last) { signal(doc, \"historyAdded\") }\n}\n\nfunction selectionEventCanBeMerged(doc, origin, prev, sel) {\n var ch = origin.charAt(0)\n return ch == \"*\" ||\n ch == \"+\" &&\n prev.ranges.length == sel.ranges.length &&\n prev.somethingSelected() == sel.somethingSelected() &&\n new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)\n}\n\n// Called whenever the selection changes, sets the new selection as\n// the pending selection in the history, and pushes the old pending\n// selection into the 'done' array when it was significantly\n// different (in number of selected ranges, emptiness, or time).\nfunction addSelectionToHistory(doc, sel, opId, options) {\n var hist = doc.history, origin = options && options.origin\n\n // A new event is started when the previous origin does not match\n // the current, or the origins don't allow matching. Origins\n // starting with * are always merged, those starting with + are\n // merged when similar and close together in time.\n if (opId == hist.lastSelOp ||\n (origin && hist.lastSelOrigin == origin &&\n (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||\n selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))\n { hist.done[hist.done.length - 1] = sel }\n else\n { pushSelectionToHistory(sel, hist.done) }\n\n hist.lastSelTime = +new Date\n hist.lastSelOrigin = origin\n hist.lastSelOp = opId\n if (options && options.clearRedo !== false)\n { clearSelectionEvents(hist.undone) }\n}\n\nfunction pushSelectionToHistory(sel, dest) {\n var top = lst(dest)\n if (!(top && top.ranges && top.equals(sel)))\n { dest.push(sel) }\n}\n\n// Used to store marked span information in the history.\nfunction attachLocalSpans(doc, change, from, to) {\n var existing = change[\"spans_\" + doc.id], n = 0\n doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {\n if (line.markedSpans)\n { (existing || (existing = change[\"spans_\" + doc.id] = {}))[n] = line.markedSpans }\n ++n\n })\n}\n\n// When un/re-doing restores text containing marked spans, those\n// that have been explicitly cleared should not be restored.\nfunction removeClearedSpans(spans) {\n if (!spans) { return null }\n var out\n for (var i = 0; i < spans.length; ++i) {\n if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i) } }\n else if (out) { out.push(spans[i]) }\n }\n return !out ? spans : out.length ? out : null\n}\n\n// Retrieve and filter the old marked spans stored in a change event.\nfunction getOldSpans(doc, change) {\n var found = change[\"spans_\" + doc.id]\n if (!found) { return null }\n var nw = []\n for (var i = 0; i < change.text.length; ++i)\n { nw.push(removeClearedSpans(found[i])) }\n return nw\n}\n\n// Used for un/re-doing changes from the history. Combines the\n// result of computing the existing spans with the set of spans that\n// existed in the history (so that deleting around a span and then\n// undoing brings back the span).\nfunction mergeOldSpans(doc, change) {\n var old = getOldSpans(doc, change)\n var stretched = stretchSpansOverChange(doc, change)\n if (!old) { return stretched }\n if (!stretched) { return old }\n\n for (var i = 0; i < old.length; ++i) {\n var oldCur = old[i], stretchCur = stretched[i]\n if (oldCur && stretchCur) {\n spans: for (var j = 0; j < stretchCur.length; ++j) {\n var span = stretchCur[j]\n for (var k = 0; k < oldCur.length; ++k)\n { if (oldCur[k].marker == span.marker) { continue spans } }\n oldCur.push(span)\n }\n } else if (stretchCur) {\n old[i] = stretchCur\n }\n }\n return old\n}\n\n// Used both to provide a JSON-safe object in .getHistory, and, when\n// detaching a document, to split the history in two\nfunction copyHistoryArray(events, newGroup, instantiateSel) {\n var copy = []\n for (var i = 0; i < events.length; ++i) {\n var event = events[i]\n if (event.ranges) {\n copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event)\n continue\n }\n var changes = event.changes, newChanges = []\n copy.push({changes: newChanges})\n for (var j = 0; j < changes.length; ++j) {\n var change = changes[j], m = (void 0)\n newChanges.push({from: change.from, to: change.to, text: change.text})\n if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\\d+)$/)) {\n if (indexOf(newGroup, Number(m[1])) > -1) {\n lst(newChanges)[prop] = change[prop]\n delete change[prop]\n }\n } } }\n }\n }\n return copy\n}\n\n// The 'scroll' parameter given to many of these indicated whether\n// the new cursor position should be scrolled into view after\n// modifying the selection.\n\n// If shift is held or the extend flag is set, extends a range to\n// include a given position (and optionally a second position).\n// Otherwise, simply returns the range between the given positions.\n// Used for cursor motion and such.\nfunction extendRange(range, head, other, extend) {\n if (extend) {\n var anchor = range.anchor\n if (other) {\n var posBefore = cmp(head, anchor) < 0\n if (posBefore != (cmp(other, anchor) < 0)) {\n anchor = head\n head = other\n } else if (posBefore != (cmp(head, other) < 0)) {\n head = other\n }\n }\n return new Range(anchor, head)\n } else {\n return new Range(other || head, head)\n }\n}\n\n// Extend the primary selection range, discard the rest.\nfunction extendSelection(doc, head, other, options, extend) {\n if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend) }\n setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options)\n}\n\n// Extend all selections (pos is an array of selections with length\n// equal the number of selections)\nfunction extendSelections(doc, heads, options) {\n var out = []\n var extend = doc.cm && (doc.cm.display.shift || doc.extend)\n for (var i = 0; i < doc.sel.ranges.length; i++)\n { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend) }\n var newSel = normalizeSelection(out, doc.sel.primIndex)\n setSelection(doc, newSel, options)\n}\n\n// Updates a single range in the selection.\nfunction replaceOneSelection(doc, i, range, options) {\n var ranges = doc.sel.ranges.slice(0)\n ranges[i] = range\n setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options)\n}\n\n// Reset the selection to a single range.\nfunction setSimpleSelection(doc, anchor, head, options) {\n setSelection(doc, simpleSelection(anchor, head), options)\n}\n\n// Give beforeSelectionChange handlers a change to influence a\n// selection update.\nfunction filterSelectionChange(doc, sel, options) {\n var obj = {\n ranges: sel.ranges,\n update: function(ranges) {\n var this$1 = this;\n\n this.ranges = []\n for (var i = 0; i < ranges.length; i++)\n { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),\n clipPos(doc, ranges[i].head)) }\n },\n origin: options && options.origin\n }\n signal(doc, \"beforeSelectionChange\", doc, obj)\n if (doc.cm) { signal(doc.cm, \"beforeSelectionChange\", doc.cm, obj) }\n if (obj.ranges != sel.ranges) { return normalizeSelection(obj.ranges, obj.ranges.length - 1) }\n else { return sel }\n}\n\nfunction setSelectionReplaceHistory(doc, sel, options) {\n var done = doc.history.done, last = lst(done)\n if (last && last.ranges) {\n done[done.length - 1] = sel\n setSelectionNoUndo(doc, sel, options)\n } else {\n setSelection(doc, sel, options)\n }\n}\n\n// Set a new selection.\nfunction setSelection(doc, sel, options) {\n setSelectionNoUndo(doc, sel, options)\n addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options)\n}\n\nfunction setSelectionNoUndo(doc, sel, options) {\n if (hasHandler(doc, \"beforeSelectionChange\") || doc.cm && hasHandler(doc.cm, \"beforeSelectionChange\"))\n { sel = filterSelectionChange(doc, sel, options) }\n\n var bias = options && options.bias ||\n (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1)\n setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true))\n\n if (!(options && options.scroll === false) && doc.cm)\n { ensureCursorVisible(doc.cm) }\n}\n\nfunction setSelectionInner(doc, sel) {\n if (sel.equals(doc.sel)) { return }\n\n doc.sel = sel\n\n if (doc.cm) {\n doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true\n signalCursorActivity(doc.cm)\n }\n signalLater(doc, \"cursorActivity\", doc)\n}\n\n// Verify that the selection does not partially select any atomic\n// marked ranges.\nfunction reCheckSelection(doc) {\n setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false))\n}\n\n// Return a selection that does not partially select any atomic\n// ranges.\nfunction skipAtomicInSelection(doc, sel, bias, mayClear) {\n var out\n for (var i = 0; i < sel.ranges.length; i++) {\n var range = sel.ranges[i]\n var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]\n var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear)\n var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear)\n if (out || newAnchor != range.anchor || newHead != range.head) {\n if (!out) { out = sel.ranges.slice(0, i) }\n out[i] = new Range(newAnchor, newHead)\n }\n }\n return out ? normalizeSelection(out, sel.primIndex) : sel\n}\n\nfunction skipAtomicInner(doc, pos, oldPos, dir, mayClear) {\n var line = getLine(doc, pos.line)\n if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {\n var sp = line.markedSpans[i], m = sp.marker\n if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&\n (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) {\n if (mayClear) {\n signal(m, \"beforeCursorEnter\")\n if (m.explicitlyCleared) {\n if (!line.markedSpans) { break }\n else {--i; continue}\n }\n }\n if (!m.atomic) { continue }\n\n if (oldPos) {\n var near = m.find(dir < 0 ? 1 : -1), diff = (void 0)\n if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft)\n { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null) }\n if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))\n { return skipAtomicInner(doc, near, pos, dir, mayClear) }\n }\n\n var far = m.find(dir < 0 ? -1 : 1)\n if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight)\n { far = movePos(doc, far, dir, far.line == pos.line ? line : null) }\n return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null\n }\n } }\n return pos\n}\n\n// Ensure a given position is not inside an atomic range.\nfunction skipAtomic(doc, pos, oldPos, bias, mayClear) {\n var dir = bias || 1\n var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||\n (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||\n skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||\n (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true))\n if (!found) {\n doc.cantEdit = true\n return Pos(doc.first, 0)\n }\n return found\n}\n\nfunction movePos(doc, pos, dir, line) {\n if (dir < 0 && pos.ch == 0) {\n if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }\n else { return null }\n } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {\n if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }\n else { return null }\n } else {\n return new Pos(pos.line, pos.ch + dir)\n }\n}\n\nfunction selectAll(cm) {\n cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll)\n}\n\n// UPDATING\n\n// Allow \"beforeChange\" event handlers to influence a change\nfunction filterChange(doc, change, update) {\n var obj = {\n canceled: false,\n from: change.from,\n to: change.to,\n text: change.text,\n origin: change.origin,\n cancel: function () { return obj.canceled = true; }\n }\n if (update) { obj.update = function (from, to, text, origin) {\n if (from) { obj.from = clipPos(doc, from) }\n if (to) { obj.to = clipPos(doc, to) }\n if (text) { obj.text = text }\n if (origin !== undefined) { obj.origin = origin }\n } }\n signal(doc, \"beforeChange\", doc, obj)\n if (doc.cm) { signal(doc.cm, \"beforeChange\", doc.cm, obj) }\n\n if (obj.canceled) { return null }\n return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}\n}\n\n// Apply a change to a document, and add it to the document's\n// history, and propagating it to all linked documents.\nfunction makeChange(doc, change, ignoreReadOnly) {\n if (doc.cm) {\n if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }\n if (doc.cm.state.suppressEdits) { return }\n }\n\n if (hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\")) {\n change = filterChange(doc, change, true)\n if (!change) { return }\n }\n\n // Possibly split or suppress the update based on the presence\n // of read-only spans in its range.\n var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to)\n if (split) {\n for (var i = split.length - 1; i >= 0; --i)\n { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [\"\"] : change.text}) }\n } else {\n makeChangeInner(doc, change)\n }\n}\n\nfunction makeChangeInner(doc, change) {\n if (change.text.length == 1 && change.text[0] == \"\" && cmp(change.from, change.to) == 0) { return }\n var selAfter = computeSelAfterChange(doc, change)\n addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN)\n\n makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change))\n var rebased = []\n\n linkedDocs(doc, function (doc, sharedHist) {\n if (!sharedHist && indexOf(rebased, doc.history) == -1) {\n rebaseHist(doc.history, change)\n rebased.push(doc.history)\n }\n makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change))\n })\n}\n\n// Revert a change stored in a document's history.\nfunction makeChangeFromHistory(doc, type, allowSelectionOnly) {\n if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) { return }\n\n var hist = doc.history, event, selAfter = doc.sel\n var source = type == \"undo\" ? hist.done : hist.undone, dest = type == \"undo\" ? hist.undone : hist.done\n\n // Verify that there is a useable event (so that ctrl-z won't\n // needlessly clear selection events)\n var i = 0\n for (; i < source.length; i++) {\n event = source[i]\n if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)\n { break }\n }\n if (i == source.length) { return }\n hist.lastOrigin = hist.lastSelOrigin = null\n\n for (;;) {\n event = source.pop()\n if (event.ranges) {\n pushSelectionToHistory(event, dest)\n if (allowSelectionOnly && !event.equals(doc.sel)) {\n setSelection(doc, event, {clearRedo: false})\n return\n }\n selAfter = event\n }\n else { break }\n }\n\n // Build up a reverse change object to add to the opposite history\n // stack (redo when undoing, and vice versa).\n var antiChanges = []\n pushSelectionToHistory(selAfter, dest)\n dest.push({changes: antiChanges, generation: hist.generation})\n hist.generation = event.generation || ++hist.maxGeneration\n\n var filter = hasHandler(doc, \"beforeChange\") || doc.cm && hasHandler(doc.cm, \"beforeChange\")\n\n var loop = function ( i ) {\n var change = event.changes[i]\n change.origin = type\n if (filter && !filterChange(doc, change, false)) {\n source.length = 0\n return {}\n }\n\n antiChanges.push(historyChangeFromChange(doc, change))\n\n var after = i ? computeSelAfterChange(doc, change) : lst(source)\n makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change))\n if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}) }\n var rebased = []\n\n // Propagate to the linked documents\n linkedDocs(doc, function (doc, sharedHist) {\n if (!sharedHist && indexOf(rebased, doc.history) == -1) {\n rebaseHist(doc.history, change)\n rebased.push(doc.history)\n }\n makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change))\n })\n };\n\n for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {\n var returned = loop( i$1 );\n\n if ( returned ) return returned.v;\n }\n}\n\n// Sub-views need their line numbers shifted when text is added\n// above or below them in the parent document.\nfunction shiftDoc(doc, distance) {\n if (distance == 0) { return }\n doc.first += distance\n doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(\n Pos(range.anchor.line + distance, range.anchor.ch),\n Pos(range.head.line + distance, range.head.ch)\n ); }), doc.sel.primIndex)\n if (doc.cm) {\n regChange(doc.cm, doc.first, doc.first - distance, distance)\n for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)\n { regLineChange(doc.cm, l, \"gutter\") }\n }\n}\n\n// More lower-level change function, handling only a single document\n// (not linked ones).\nfunction makeChangeSingleDoc(doc, change, selAfter, spans) {\n if (doc.cm && !doc.cm.curOp)\n { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }\n\n if (change.to.line < doc.first) {\n shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line))\n return\n }\n if (change.from.line > doc.lastLine()) { return }\n\n // Clip the change to the size of this doc\n if (change.from.line < doc.first) {\n var shift = change.text.length - 1 - (doc.first - change.from.line)\n shiftDoc(doc, shift)\n change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),\n text: [lst(change.text)], origin: change.origin}\n }\n var last = doc.lastLine()\n if (change.to.line > last) {\n change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),\n text: [change.text[0]], origin: change.origin}\n }\n\n change.removed = getBetween(doc, change.from, change.to)\n\n if (!selAfter) { selAfter = computeSelAfterChange(doc, change) }\n if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans) }\n else { updateDoc(doc, change, spans) }\n setSelectionNoUndo(doc, selAfter, sel_dontScroll)\n}\n\n// Handle the interaction of a change to a document with the editor\n// that this document is part of.\nfunction makeChangeSingleDocInEditor(cm, change, spans) {\n var doc = cm.doc, display = cm.display, from = change.from, to = change.to\n\n var recomputeMaxLength = false, checkWidthStart = from.line\n if (!cm.options.lineWrapping) {\n checkWidthStart = lineNo(visualLine(getLine(doc, from.line)))\n doc.iter(checkWidthStart, to.line + 1, function (line) {\n if (line == display.maxLine) {\n recomputeMaxLength = true\n return true\n }\n })\n }\n\n if (doc.sel.contains(change.from, change.to) > -1)\n { signalCursorActivity(cm) }\n\n updateDoc(doc, change, spans, estimateHeight(cm))\n\n if (!cm.options.lineWrapping) {\n doc.iter(checkWidthStart, from.line + change.text.length, function (line) {\n var len = lineLength(line)\n if (len > display.maxLineLength) {\n display.maxLine = line\n display.maxLineLength = len\n display.maxLineChanged = true\n recomputeMaxLength = false\n }\n })\n if (recomputeMaxLength) { cm.curOp.updateMaxLine = true }\n }\n\n retreatFrontier(doc, from.line)\n startWorker(cm, 400)\n\n var lendiff = change.text.length - (to.line - from.line) - 1\n // Remember that these lines changed, for updating the display\n if (change.full)\n { regChange(cm) }\n else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))\n { regLineChange(cm, from.line, \"text\") }\n else\n { regChange(cm, from.line, to.line + 1, lendiff) }\n\n var changesHandler = hasHandler(cm, \"changes\"), changeHandler = hasHandler(cm, \"change\")\n if (changeHandler || changesHandler) {\n var obj = {\n from: from, to: to,\n text: change.text,\n removed: change.removed,\n origin: change.origin\n }\n if (changeHandler) { signalLater(cm, \"change\", cm, obj) }\n if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj) }\n }\n cm.display.selForContextMenu = null\n}\n\nfunction replaceRange(doc, code, from, to, origin) {\n if (!to) { to = from }\n if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp }\n if (typeof code == \"string\") { code = doc.splitLines(code) }\n makeChange(doc, {from: from, to: to, text: code, origin: origin})\n}\n\n// Rebasing/resetting history to deal with externally-sourced changes\n\nfunction rebaseHistSelSingle(pos, from, to, diff) {\n if (to < pos.line) {\n pos.line += diff\n } else if (from < pos.line) {\n pos.line = from\n pos.ch = 0\n }\n}\n\n// Tries to rebase an array of history events given a change in the\n// document. If the change touches the same lines as the event, the\n// event, and everything 'behind' it, is discarded. If the change is\n// before the event, the event's positions are updated. Uses a\n// copy-on-write scheme for the positions, to avoid having to\n// reallocate them all on every rebase, but also avoid problems with\n// shared position objects being unsafely updated.\nfunction rebaseHistArray(array, from, to, diff) {\n for (var i = 0; i < array.length; ++i) {\n var sub = array[i], ok = true\n if (sub.ranges) {\n if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true }\n for (var j = 0; j < sub.ranges.length; j++) {\n rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff)\n rebaseHistSelSingle(sub.ranges[j].head, from, to, diff)\n }\n continue\n }\n for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {\n var cur = sub.changes[j$1]\n if (to < cur.from.line) {\n cur.from = Pos(cur.from.line + diff, cur.from.ch)\n cur.to = Pos(cur.to.line + diff, cur.to.ch)\n } else if (from <= cur.to.line) {\n ok = false\n break\n }\n }\n if (!ok) {\n array.splice(0, i + 1)\n i = 0\n }\n }\n}\n\nfunction rebaseHist(hist, change) {\n var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1\n rebaseHistArray(hist.done, from, to, diff)\n rebaseHistArray(hist.undone, from, to, diff)\n}\n\n// Utility for applying a change to a line by handle or number,\n// returning the number and optionally registering the line as\n// changed.\nfunction changeLine(doc, handle, changeType, op) {\n var no = handle, line = handle\n if (typeof handle == \"number\") { line = getLine(doc, clipLine(doc, handle)) }\n else { no = lineNo(handle) }\n if (no == null) { return null }\n if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType) }\n return line\n}\n\n// The document is represented as a BTree consisting of leaves, with\n// chunk of lines in them, and branches, with up to ten leaves or\n// other branch nodes below them. The top node is always a branch\n// node, and is the document object itself (meaning it has\n// additional methods and properties).\n//\n// All nodes have parent links. The tree is used both to go from\n// line numbers to line objects, and to go from objects to numbers.\n// It also indexes by height, and is used to convert between height\n// and line object, and to find the total height of the document.\n//\n// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html\n\nfunction LeafChunk(lines) {\n var this$1 = this;\n\n this.lines = lines\n this.parent = null\n var height = 0\n for (var i = 0; i < lines.length; ++i) {\n lines[i].parent = this$1\n height += lines[i].height\n }\n this.height = height\n}\n\nLeafChunk.prototype = {\n chunkSize: function chunkSize() { return this.lines.length },\n\n // Remove the n lines at offset 'at'.\n removeInner: function removeInner(at, n) {\n var this$1 = this;\n\n for (var i = at, e = at + n; i < e; ++i) {\n var line = this$1.lines[i]\n this$1.height -= line.height\n cleanUpLine(line)\n signalLater(line, \"delete\")\n }\n this.lines.splice(at, n)\n },\n\n // Helper used to collapse a small branch into a single leaf.\n collapse: function collapse(lines) {\n lines.push.apply(lines, this.lines)\n },\n\n // Insert the given array of lines at offset 'at', count them as\n // having the given height.\n insertInner: function insertInner(at, lines, height) {\n var this$1 = this;\n\n this.height += height\n this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at))\n for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1 }\n },\n\n // Used to iterate over a part of the tree.\n iterN: function iterN(at, n, op) {\n var this$1 = this;\n\n for (var e = at + n; at < e; ++at)\n { if (op(this$1.lines[at])) { return true } }\n }\n}\n\nfunction BranchChunk(children) {\n var this$1 = this;\n\n this.children = children\n var size = 0, height = 0\n for (var i = 0; i < children.length; ++i) {\n var ch = children[i]\n size += ch.chunkSize(); height += ch.height\n ch.parent = this$1\n }\n this.size = size\n this.height = height\n this.parent = null\n}\n\nBranchChunk.prototype = {\n chunkSize: function chunkSize() { return this.size },\n\n removeInner: function removeInner(at, n) {\n var this$1 = this;\n\n this.size -= n\n for (var i = 0; i < this.children.length; ++i) {\n var child = this$1.children[i], sz = child.chunkSize()\n if (at < sz) {\n var rm = Math.min(n, sz - at), oldHeight = child.height\n child.removeInner(at, rm)\n this$1.height -= oldHeight - child.height\n if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null }\n if ((n -= rm) == 0) { break }\n at = 0\n } else { at -= sz }\n }\n // If the result is smaller than 25 lines, ensure that it is a\n // single leaf node.\n if (this.size - n < 25 &&\n (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {\n var lines = []\n this.collapse(lines)\n this.children = [new LeafChunk(lines)]\n this.children[0].parent = this\n }\n },\n\n collapse: function collapse(lines) {\n var this$1 = this;\n\n for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines) }\n },\n\n insertInner: function insertInner(at, lines, height) {\n var this$1 = this;\n\n this.size += lines.length\n this.height += height\n for (var i = 0; i < this.children.length; ++i) {\n var child = this$1.children[i], sz = child.chunkSize()\n if (at <= sz) {\n child.insertInner(at, lines, height)\n if (child.lines && child.lines.length > 50) {\n // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.\n // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.\n var remaining = child.lines.length % 25 + 25\n for (var pos = remaining; pos < child.lines.length;) {\n var leaf = new LeafChunk(child.lines.slice(pos, pos += 25))\n child.height -= leaf.height\n this$1.children.splice(++i, 0, leaf)\n leaf.parent = this$1\n }\n child.lines = child.lines.slice(0, remaining)\n this$1.maybeSpill()\n }\n break\n }\n at -= sz\n }\n },\n\n // When a node has grown, check whether it should be split.\n maybeSpill: function maybeSpill() {\n if (this.children.length <= 10) { return }\n var me = this\n do {\n var spilled = me.children.splice(me.children.length - 5, 5)\n var sibling = new BranchChunk(spilled)\n if (!me.parent) { // Become the parent node\n var copy = new BranchChunk(me.children)\n copy.parent = me\n me.children = [copy, sibling]\n me = copy\n } else {\n me.size -= sibling.size\n me.height -= sibling.height\n var myIndex = indexOf(me.parent.children, me)\n me.parent.children.splice(myIndex + 1, 0, sibling)\n }\n sibling.parent = me.parent\n } while (me.children.length > 10)\n me.parent.maybeSpill()\n },\n\n iterN: function iterN(at, n, op) {\n var this$1 = this;\n\n for (var i = 0; i < this.children.length; ++i) {\n var child = this$1.children[i], sz = child.chunkSize()\n if (at < sz) {\n var used = Math.min(n, sz - at)\n if (child.iterN(at, used, op)) { return true }\n if ((n -= used) == 0) { break }\n at = 0\n } else { at -= sz }\n }\n }\n}\n\n// Line widgets are block elements displayed above or below a line.\n\nvar LineWidget = function(doc, node, options) {\n var this$1 = this;\n\n if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))\n { this$1[opt] = options[opt] } } }\n this.doc = doc\n this.node = node\n};\n\nLineWidget.prototype.clear = function () {\n var this$1 = this;\n\n var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line)\n if (no == null || !ws) { return }\n for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1) } }\n if (!ws.length) { line.widgets = null }\n var height = widgetHeight(this)\n updateLineHeight(line, Math.max(0, line.height - height))\n if (cm) {\n runInOp(cm, function () {\n adjustScrollWhenAboveVisible(cm, line, -height)\n regLineChange(cm, no, \"widget\")\n })\n signalLater(cm, \"lineWidgetCleared\", cm, this, no)\n }\n};\n\nLineWidget.prototype.changed = function () {\n var this$1 = this;\n\n var oldH = this.height, cm = this.doc.cm, line = this.line\n this.height = null\n var diff = widgetHeight(this) - oldH\n if (!diff) { return }\n updateLineHeight(line, line.height + diff)\n if (cm) {\n runInOp(cm, function () {\n cm.curOp.forceUpdate = true\n adjustScrollWhenAboveVisible(cm, line, diff)\n signalLater(cm, \"lineWidgetChanged\", cm, this$1, lineNo(line))\n })\n }\n};\neventMixin(LineWidget)\n\nfunction adjustScrollWhenAboveVisible(cm, line, diff) {\n if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))\n { addToScrollTop(cm, diff) }\n}\n\nfunction addLineWidget(doc, handle, node, options) {\n var widget = new LineWidget(doc, node, options)\n var cm = doc.cm\n if (cm && widget.noHScroll) { cm.display.alignWidgets = true }\n changeLine(doc, handle, \"widget\", function (line) {\n var widgets = line.widgets || (line.widgets = [])\n if (widget.insertAt == null) { widgets.push(widget) }\n else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget) }\n widget.line = line\n if (cm && !lineIsHidden(doc, line)) {\n var aboveVisible = heightAtLine(line) < doc.scrollTop\n updateLineHeight(line, line.height + widgetHeight(widget))\n if (aboveVisible) { addToScrollTop(cm, widget.height) }\n cm.curOp.forceUpdate = true\n }\n return true\n })\n signalLater(cm, \"lineWidgetAdded\", cm, widget, typeof handle == \"number\" ? handle : lineNo(handle))\n return widget\n}\n\n// TEXTMARKERS\n\n// Created with markText and setBookmark methods. A TextMarker is a\n// handle that can be used to clear or find a marked position in the\n// document. Line objects hold arrays (markedSpans) containing\n// {from, to, marker} object pointing to such marker objects, and\n// indicating that such a marker is present on that line. Multiple\n// lines may point to the same marker when it spans across lines.\n// The spans will have null for their from/to properties when the\n// marker continues beyond the start/end of the line. Markers have\n// links back to the lines they currently touch.\n\n// Collapsed markers have unique ids, in order to be able to order\n// them, which is needed for uniquely determining an outer marker\n// when they overlap (they may nest, but not partially overlap).\nvar nextMarkerId = 0\n\nvar TextMarker = function(doc, type) {\n this.lines = []\n this.type = type\n this.doc = doc\n this.id = ++nextMarkerId\n};\n\n// Clear the marker.\nTextMarker.prototype.clear = function () {\n var this$1 = this;\n\n if (this.explicitlyCleared) { return }\n var cm = this.doc.cm, withOp = cm && !cm.curOp\n if (withOp) { startOperation(cm) }\n if (hasHandler(this, \"clear\")) {\n var found = this.find()\n if (found) { signalLater(this, \"clear\", found.from, found.to) }\n }\n var min = null, max = null\n for (var i = 0; i < this.lines.length; ++i) {\n var line = this$1.lines[i]\n var span = getMarkedSpanFor(line.markedSpans, this$1)\n if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), \"text\") }\n else if (cm) {\n if (span.to != null) { max = lineNo(line) }\n if (span.from != null) { min = lineNo(line) }\n }\n line.markedSpans = removeMarkedSpan(line.markedSpans, span)\n if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm)\n { updateLineHeight(line, textHeight(cm.display)) }\n }\n if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {\n var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual)\n if (len > cm.display.maxLineLength) {\n cm.display.maxLine = visual\n cm.display.maxLineLength = len\n cm.display.maxLineChanged = true\n }\n } }\n\n if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1) }\n this.lines.length = 0\n this.explicitlyCleared = true\n if (this.atomic && this.doc.cantEdit) {\n this.doc.cantEdit = false\n if (cm) { reCheckSelection(cm.doc) }\n }\n if (cm) { signalLater(cm, \"markerCleared\", cm, this, min, max) }\n if (withOp) { endOperation(cm) }\n if (this.parent) { this.parent.clear() }\n};\n\n// Find the position of the marker in the document. Returns a {from,\n// to} object by default. Side can be passed to get a specific side\n// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the\n// Pos objects returned contain a line object, rather than a line\n// number (used to prevent looking up the same line twice).\nTextMarker.prototype.find = function (side, lineObj) {\n var this$1 = this;\n\n if (side == null && this.type == \"bookmark\") { side = 1 }\n var from, to\n for (var i = 0; i < this.lines.length; ++i) {\n var line = this$1.lines[i]\n var span = getMarkedSpanFor(line.markedSpans, this$1)\n if (span.from != null) {\n from = Pos(lineObj ? line : lineNo(line), span.from)\n if (side == -1) { return from }\n }\n if (span.to != null) {\n to = Pos(lineObj ? line : lineNo(line), span.to)\n if (side == 1) { return to }\n }\n }\n return from && {from: from, to: to}\n};\n\n// Signals that the marker's widget changed, and surrounding layout\n// should be recomputed.\nTextMarker.prototype.changed = function () {\n var this$1 = this;\n\n var pos = this.find(-1, true), widget = this, cm = this.doc.cm\n if (!pos || !cm) { return }\n runInOp(cm, function () {\n var line = pos.line, lineN = lineNo(pos.line)\n var view = findViewForLine(cm, lineN)\n if (view) {\n clearLineMeasurementCacheFor(view)\n cm.curOp.selectionChanged = cm.curOp.forceUpdate = true\n }\n cm.curOp.updateMaxLine = true\n if (!lineIsHidden(widget.doc, line) && widget.height != null) {\n var oldHeight = widget.height\n widget.height = null\n var dHeight = widgetHeight(widget) - oldHeight\n if (dHeight)\n { updateLineHeight(line, line.height + dHeight) }\n }\n signalLater(cm, \"markerChanged\", cm, this$1)\n })\n};\n\nTextMarker.prototype.attachLine = function (line) {\n if (!this.lines.length && this.doc.cm) {\n var op = this.doc.cm.curOp\n if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)\n { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this) }\n }\n this.lines.push(line)\n};\n\nTextMarker.prototype.detachLine = function (line) {\n this.lines.splice(indexOf(this.lines, line), 1)\n if (!this.lines.length && this.doc.cm) {\n var op = this.doc.cm.curOp\n ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this)\n }\n};\neventMixin(TextMarker)\n\n// Create a marker, wire it up to the right lines, and\nfunction markText(doc, from, to, options, type) {\n // Shared markers (across linked documents) are handled separately\n // (markTextShared will call out to this again, once per\n // document).\n if (options && options.shared) { return markTextShared(doc, from, to, options, type) }\n // Ensure we are in an operation.\n if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }\n\n var marker = new TextMarker(doc, type), diff = cmp(from, to)\n if (options) { copyObj(options, marker, false) }\n // Don't connect empty markers unless clearWhenEmpty is false\n if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)\n { return marker }\n if (marker.replacedWith) {\n // Showing up as a widget implies collapsed (widget replaces text)\n marker.collapsed = true\n marker.widgetNode = eltP(\"span\", [marker.replacedWith], \"CodeMirror-widget\")\n if (!options.handleMouseEvents) { marker.widgetNode.setAttribute(\"cm-ignore-events\", \"true\") }\n if (options.insertLeft) { marker.widgetNode.insertLeft = true }\n }\n if (marker.collapsed) {\n if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||\n from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))\n { throw new Error(\"Inserting collapsed marker partially overlapping an existing one\") }\n seeCollapsedSpans()\n }\n\n if (marker.addToHistory)\n { addChangeToHistory(doc, {from: from, to: to, origin: \"markText\"}, doc.sel, NaN) }\n\n var curLine = from.line, cm = doc.cm, updateMaxLine\n doc.iter(curLine, to.line + 1, function (line) {\n if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)\n { updateMaxLine = true }\n if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0) }\n addMarkedSpan(line, new MarkedSpan(marker,\n curLine == from.line ? from.ch : null,\n curLine == to.line ? to.ch : null))\n ++curLine\n })\n // lineIsHidden depends on the presence of the spans, so needs a second pass\n if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {\n if (lineIsHidden(doc, line)) { updateLineHeight(line, 0) }\n }) }\n\n if (marker.clearOnEnter) { on(marker, \"beforeCursorEnter\", function () { return marker.clear(); }) }\n\n if (marker.readOnly) {\n seeReadOnlySpans()\n if (doc.history.done.length || doc.history.undone.length)\n { doc.clearHistory() }\n }\n if (marker.collapsed) {\n marker.id = ++nextMarkerId\n marker.atomic = true\n }\n if (cm) {\n // Sync editor state\n if (updateMaxLine) { cm.curOp.updateMaxLine = true }\n if (marker.collapsed)\n { regChange(cm, from.line, to.line + 1) }\n else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)\n { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, \"text\") } }\n if (marker.atomic) { reCheckSelection(cm.doc) }\n signalLater(cm, \"markerAdded\", cm, marker)\n }\n return marker\n}\n\n// SHARED TEXTMARKERS\n\n// A shared marker spans multiple linked documents. It is\n// implemented as a meta-marker-object controlling multiple normal\n// markers.\nvar SharedTextMarker = function(markers, primary) {\n var this$1 = this;\n\n this.markers = markers\n this.primary = primary\n for (var i = 0; i < markers.length; ++i)\n { markers[i].parent = this$1 }\n};\n\nSharedTextMarker.prototype.clear = function () {\n var this$1 = this;\n\n if (this.explicitlyCleared) { return }\n this.explicitlyCleared = true\n for (var i = 0; i < this.markers.length; ++i)\n { this$1.markers[i].clear() }\n signalLater(this, \"clear\")\n};\n\nSharedTextMarker.prototype.find = function (side, lineObj) {\n return this.primary.find(side, lineObj)\n};\neventMixin(SharedTextMarker)\n\nfunction markTextShared(doc, from, to, options, type) {\n options = copyObj(options)\n options.shared = false\n var markers = [markText(doc, from, to, options, type)], primary = markers[0]\n var widget = options.widgetNode\n linkedDocs(doc, function (doc) {\n if (widget) { options.widgetNode = widget.cloneNode(true) }\n markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type))\n for (var i = 0; i < doc.linked.length; ++i)\n { if (doc.linked[i].isParent) { return } }\n primary = lst(markers)\n })\n return new SharedTextMarker(markers, primary)\n}\n\nfunction findSharedMarkers(doc) {\n return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })\n}\n\nfunction copySharedMarkers(doc, markers) {\n for (var i = 0; i < markers.length; i++) {\n var marker = markers[i], pos = marker.find()\n var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to)\n if (cmp(mFrom, mTo)) {\n var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type)\n marker.markers.push(subMark)\n subMark.parent = marker\n }\n }\n}\n\nfunction detachSharedMarkers(markers) {\n var loop = function ( i ) {\n var marker = markers[i], linked = [marker.primary.doc]\n linkedDocs(marker.primary.doc, function (d) { return linked.push(d); })\n for (var j = 0; j < marker.markers.length; j++) {\n var subMarker = marker.markers[j]\n if (indexOf(linked, subMarker.doc) == -1) {\n subMarker.parent = null\n marker.markers.splice(j--, 1)\n }\n }\n };\n\n for (var i = 0; i < markers.length; i++) loop( i );\n}\n\nvar nextDocId = 0\nvar Doc = function(text, mode, firstLine, lineSep, direction) {\n if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }\n if (firstLine == null) { firstLine = 0 }\n\n BranchChunk.call(this, [new LeafChunk([new Line(\"\", null)])])\n this.first = firstLine\n this.scrollTop = this.scrollLeft = 0\n this.cantEdit = false\n this.cleanGeneration = 1\n this.modeFrontier = this.highlightFrontier = firstLine\n var start = Pos(firstLine, 0)\n this.sel = simpleSelection(start)\n this.history = new History(null)\n this.id = ++nextDocId\n this.modeOption = mode\n this.lineSep = lineSep\n this.direction = (direction == \"rtl\") ? \"rtl\" : \"ltr\"\n this.extend = false\n\n if (typeof text == \"string\") { text = this.splitLines(text) }\n updateDoc(this, {from: start, to: start, text: text})\n setSelection(this, simpleSelection(start), sel_dontScroll)\n}\n\nDoc.prototype = createObj(BranchChunk.prototype, {\n constructor: Doc,\n // Iterate over the document. Supports two forms -- with only one\n // argument, it calls that for each line in the document. With\n // three, it iterates over the range given by the first two (with\n // the second being non-inclusive).\n iter: function(from, to, op) {\n if (op) { this.iterN(from - this.first, to - from, op) }\n else { this.iterN(this.first, this.first + this.size, from) }\n },\n\n // Non-public interface for adding and removing lines.\n insert: function(at, lines) {\n var height = 0\n for (var i = 0; i < lines.length; ++i) { height += lines[i].height }\n this.insertInner(at - this.first, lines, height)\n },\n remove: function(at, n) { this.removeInner(at - this.first, n) },\n\n // From here, the methods are part of the public interface. Most\n // are also available from CodeMirror (editor) instances.\n\n getValue: function(lineSep) {\n var lines = getLines(this, this.first, this.first + this.size)\n if (lineSep === false) { return lines }\n return lines.join(lineSep || this.lineSeparator())\n },\n setValue: docMethodOp(function(code) {\n var top = Pos(this.first, 0), last = this.first + this.size - 1\n makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),\n text: this.splitLines(code), origin: \"setValue\", full: true}, true)\n if (this.cm) { scrollToCoords(this.cm, 0, 0) }\n setSelection(this, simpleSelection(top), sel_dontScroll)\n }),\n replaceRange: function(code, from, to, origin) {\n from = clipPos(this, from)\n to = to ? clipPos(this, to) : from\n replaceRange(this, code, from, to, origin)\n },\n getRange: function(from, to, lineSep) {\n var lines = getBetween(this, clipPos(this, from), clipPos(this, to))\n if (lineSep === false) { return lines }\n return lines.join(lineSep || this.lineSeparator())\n },\n\n getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},\n\n getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},\n getLineNumber: function(line) {return lineNo(line)},\n\n getLineHandleVisualStart: function(line) {\n if (typeof line == \"number\") { line = getLine(this, line) }\n return visualLine(line)\n },\n\n lineCount: function() {return this.size},\n firstLine: function() {return this.first},\n lastLine: function() {return this.first + this.size - 1},\n\n clipPos: function(pos) {return clipPos(this, pos)},\n\n getCursor: function(start) {\n var range = this.sel.primary(), pos\n if (start == null || start == \"head\") { pos = range.head }\n else if (start == \"anchor\") { pos = range.anchor }\n else if (start == \"end\" || start == \"to\" || start === false) { pos = range.to() }\n else { pos = range.from() }\n return pos\n },\n listSelections: function() { return this.sel.ranges },\n somethingSelected: function() {return this.sel.somethingSelected()},\n\n setCursor: docMethodOp(function(line, ch, options) {\n setSimpleSelection(this, clipPos(this, typeof line == \"number\" ? Pos(line, ch || 0) : line), null, options)\n }),\n setSelection: docMethodOp(function(anchor, head, options) {\n setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options)\n }),\n extendSelection: docMethodOp(function(head, other, options) {\n extendSelection(this, clipPos(this, head), other && clipPos(this, other), options)\n }),\n extendSelections: docMethodOp(function(heads, options) {\n extendSelections(this, clipPosArray(this, heads), options)\n }),\n extendSelectionsBy: docMethodOp(function(f, options) {\n var heads = map(this.sel.ranges, f)\n extendSelections(this, clipPosArray(this, heads), options)\n }),\n setSelections: docMethodOp(function(ranges, primary, options) {\n var this$1 = this;\n\n if (!ranges.length) { return }\n var out = []\n for (var i = 0; i < ranges.length; i++)\n { out[i] = new Range(clipPos(this$1, ranges[i].anchor),\n clipPos(this$1, ranges[i].head)) }\n if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex) }\n setSelection(this, normalizeSelection(out, primary), options)\n }),\n addSelection: docMethodOp(function(anchor, head, options) {\n var ranges = this.sel.ranges.slice(0)\n ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)))\n setSelection(this, normalizeSelection(ranges, ranges.length - 1), options)\n }),\n\n getSelection: function(lineSep) {\n var this$1 = this;\n\n var ranges = this.sel.ranges, lines\n for (var i = 0; i < ranges.length; i++) {\n var sel = getBetween(this$1, ranges[i].from(), ranges[i].to())\n lines = lines ? lines.concat(sel) : sel\n }\n if (lineSep === false) { return lines }\n else { return lines.join(lineSep || this.lineSeparator()) }\n },\n getSelections: function(lineSep) {\n var this$1 = this;\n\n var parts = [], ranges = this.sel.ranges\n for (var i = 0; i < ranges.length; i++) {\n var sel = getBetween(this$1, ranges[i].from(), ranges[i].to())\n if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()) }\n parts[i] = sel\n }\n return parts\n },\n replaceSelection: function(code, collapse, origin) {\n var dup = []\n for (var i = 0; i < this.sel.ranges.length; i++)\n { dup[i] = code }\n this.replaceSelections(dup, collapse, origin || \"+input\")\n },\n replaceSelections: docMethodOp(function(code, collapse, origin) {\n var this$1 = this;\n\n var changes = [], sel = this.sel\n for (var i = 0; i < sel.ranges.length; i++) {\n var range = sel.ranges[i]\n changes[i] = {from: range.from(), to: range.to(), text: this$1.splitLines(code[i]), origin: origin}\n }\n var newSel = collapse && collapse != \"end\" && computeReplacedSel(this, changes, collapse)\n for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)\n { makeChange(this$1, changes[i$1]) }\n if (newSel) { setSelectionReplaceHistory(this, newSel) }\n else if (this.cm) { ensureCursorVisible(this.cm) }\n }),\n undo: docMethodOp(function() {makeChangeFromHistory(this, \"undo\")}),\n redo: docMethodOp(function() {makeChangeFromHistory(this, \"redo\")}),\n undoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"undo\", true)}),\n redoSelection: docMethodOp(function() {makeChangeFromHistory(this, \"redo\", true)}),\n\n setExtending: function(val) {this.extend = val},\n getExtending: function() {return this.extend},\n\n historySize: function() {\n var hist = this.history, done = 0, undone = 0\n for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done } }\n for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone } }\n return {undo: done, redo: undone}\n },\n clearHistory: function() {this.history = new History(this.history.maxGeneration)},\n\n markClean: function() {\n this.cleanGeneration = this.changeGeneration(true)\n },\n changeGeneration: function(forceSplit) {\n if (forceSplit)\n { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null }\n return this.history.generation\n },\n isClean: function (gen) {\n return this.history.generation == (gen || this.cleanGeneration)\n },\n\n getHistory: function() {\n return {done: copyHistoryArray(this.history.done),\n undone: copyHistoryArray(this.history.undone)}\n },\n setHistory: function(histData) {\n var hist = this.history = new History(this.history.maxGeneration)\n hist.done = copyHistoryArray(histData.done.slice(0), null, true)\n hist.undone = copyHistoryArray(histData.undone.slice(0), null, true)\n },\n\n setGutterMarker: docMethodOp(function(line, gutterID, value) {\n return changeLine(this, line, \"gutter\", function (line) {\n var markers = line.gutterMarkers || (line.gutterMarkers = {})\n markers[gutterID] = value\n if (!value && isEmpty(markers)) { line.gutterMarkers = null }\n return true\n })\n }),\n\n clearGutter: docMethodOp(function(gutterID) {\n var this$1 = this;\n\n this.iter(function (line) {\n if (line.gutterMarkers && line.gutterMarkers[gutterID]) {\n changeLine(this$1, line, \"gutter\", function () {\n line.gutterMarkers[gutterID] = null\n if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null }\n return true\n })\n }\n })\n }),\n\n lineInfo: function(line) {\n var n\n if (typeof line == \"number\") {\n if (!isLine(this, line)) { return null }\n n = line\n line = getLine(this, line)\n if (!line) { return null }\n } else {\n n = lineNo(line)\n if (n == null) { return null }\n }\n return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,\n textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,\n widgets: line.widgets}\n },\n\n addLineClass: docMethodOp(function(handle, where, cls) {\n return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function (line) {\n var prop = where == \"text\" ? \"textClass\"\n : where == \"background\" ? \"bgClass\"\n : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\"\n if (!line[prop]) { line[prop] = cls }\n else if (classTest(cls).test(line[prop])) { return false }\n else { line[prop] += \" \" + cls }\n return true\n })\n }),\n removeLineClass: docMethodOp(function(handle, where, cls) {\n return changeLine(this, handle, where == \"gutter\" ? \"gutter\" : \"class\", function (line) {\n var prop = where == \"text\" ? \"textClass\"\n : where == \"background\" ? \"bgClass\"\n : where == \"gutter\" ? \"gutterClass\" : \"wrapClass\"\n var cur = line[prop]\n if (!cur) { return false }\n else if (cls == null) { line[prop] = null }\n else {\n var found = cur.match(classTest(cls))\n if (!found) { return false }\n var end = found.index + found[0].length\n line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? \"\" : \" \") + cur.slice(end) || null\n }\n return true\n })\n }),\n\n addLineWidget: docMethodOp(function(handle, node, options) {\n return addLineWidget(this, handle, node, options)\n }),\n removeLineWidget: function(widget) { widget.clear() },\n\n markText: function(from, to, options) {\n return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || \"range\")\n },\n setBookmark: function(pos, options) {\n var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),\n insertLeft: options && options.insertLeft,\n clearWhenEmpty: false, shared: options && options.shared,\n handleMouseEvents: options && options.handleMouseEvents}\n pos = clipPos(this, pos)\n return markText(this, pos, pos, realOpts, \"bookmark\")\n },\n findMarksAt: function(pos) {\n pos = clipPos(this, pos)\n var markers = [], spans = getLine(this, pos.line).markedSpans\n if (spans) { for (var i = 0; i < spans.length; ++i) {\n var span = spans[i]\n if ((span.from == null || span.from <= pos.ch) &&\n (span.to == null || span.to >= pos.ch))\n { markers.push(span.marker.parent || span.marker) }\n } }\n return markers\n },\n findMarks: function(from, to, filter) {\n from = clipPos(this, from); to = clipPos(this, to)\n var found = [], lineNo = from.line\n this.iter(from.line, to.line + 1, function (line) {\n var spans = line.markedSpans\n if (spans) { for (var i = 0; i < spans.length; i++) {\n var span = spans[i]\n if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||\n span.from == null && lineNo != from.line ||\n span.from != null && lineNo == to.line && span.from >= to.ch) &&\n (!filter || filter(span.marker)))\n { found.push(span.marker.parent || span.marker) }\n } }\n ++lineNo\n })\n return found\n },\n getAllMarks: function() {\n var markers = []\n this.iter(function (line) {\n var sps = line.markedSpans\n if (sps) { for (var i = 0; i < sps.length; ++i)\n { if (sps[i].from != null) { markers.push(sps[i].marker) } } }\n })\n return markers\n },\n\n posFromIndex: function(off) {\n var ch, lineNo = this.first, sepSize = this.lineSeparator().length\n this.iter(function (line) {\n var sz = line.text.length + sepSize\n if (sz > off) { ch = off; return true }\n off -= sz\n ++lineNo\n })\n return clipPos(this, Pos(lineNo, ch))\n },\n indexFromPos: function (coords) {\n coords = clipPos(this, coords)\n var index = coords.ch\n if (coords.line < this.first || coords.ch < 0) { return 0 }\n var sepSize = this.lineSeparator().length\n this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value\n index += line.text.length + sepSize\n })\n return index\n },\n\n copy: function(copyHistory) {\n var doc = new Doc(getLines(this, this.first, this.first + this.size),\n this.modeOption, this.first, this.lineSep, this.direction)\n doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft\n doc.sel = this.sel\n doc.extend = false\n if (copyHistory) {\n doc.history.undoDepth = this.history.undoDepth\n doc.setHistory(this.getHistory())\n }\n return doc\n },\n\n linkedDoc: function(options) {\n if (!options) { options = {} }\n var from = this.first, to = this.first + this.size\n if (options.from != null && options.from > from) { from = options.from }\n if (options.to != null && options.to < to) { to = options.to }\n var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction)\n if (options.sharedHist) { copy.history = this.history\n ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist})\n copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]\n copySharedMarkers(copy, findSharedMarkers(this))\n return copy\n },\n unlinkDoc: function(other) {\n var this$1 = this;\n\n if (other instanceof CodeMirror) { other = other.doc }\n if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {\n var link = this$1.linked[i]\n if (link.doc != other) { continue }\n this$1.linked.splice(i, 1)\n other.unlinkDoc(this$1)\n detachSharedMarkers(findSharedMarkers(this$1))\n break\n } }\n // If the histories were shared, split them again\n if (other.history == this.history) {\n var splitIds = [other.id]\n linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true)\n other.history = new History(null)\n other.history.done = copyHistoryArray(this.history.done, splitIds)\n other.history.undone = copyHistoryArray(this.history.undone, splitIds)\n }\n },\n iterLinkedDocs: function(f) {linkedDocs(this, f)},\n\n getMode: function() {return this.mode},\n getEditor: function() {return this.cm},\n\n splitLines: function(str) {\n if (this.lineSep) { return str.split(this.lineSep) }\n return splitLinesAuto(str)\n },\n lineSeparator: function() { return this.lineSep || \"\\n\" },\n\n setDirection: docMethodOp(function (dir) {\n if (dir != \"rtl\") { dir = \"ltr\" }\n if (dir == this.direction) { return }\n this.direction = dir\n this.iter(function (line) { return line.order = null; })\n if (this.cm) { directionChanged(this.cm) }\n })\n})\n\n// Public alias.\nDoc.prototype.eachLine = Doc.prototype.iter\n\n// Kludge to work around strange IE behavior where it'll sometimes\n// re-fire a series of drag-related events right after the drop (#1551)\nvar lastDrop = 0\n\nfunction onDrop(e) {\n var cm = this\n clearDragCursor(cm)\n if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))\n { return }\n e_preventDefault(e)\n if (ie) { lastDrop = +new Date }\n var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files\n if (!pos || cm.isReadOnly()) { return }\n // Might be a file drop, in which case we simply extract the text\n // and insert it.\n if (files && files.length && window.FileReader && window.File) {\n var n = files.length, text = Array(n), read = 0\n var loadFile = function (file, i) {\n if (cm.options.allowDropFileTypes &&\n indexOf(cm.options.allowDropFileTypes, file.type) == -1)\n { return }\n\n var reader = new FileReader\n reader.onload = operation(cm, function () {\n var content = reader.result\n if (/[\\x00-\\x08\\x0e-\\x1f]{2}/.test(content)) { content = \"\" }\n text[i] = content\n if (++read == n) {\n pos = clipPos(cm.doc, pos)\n var change = {from: pos, to: pos,\n text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),\n origin: \"paste\"}\n makeChange(cm.doc, change)\n setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)))\n }\n })\n reader.readAsText(file)\n }\n for (var i = 0; i < n; ++i) { loadFile(files[i], i) }\n } else { // Normal drop\n // Don't do a replace if the drop happened inside of the selected text.\n if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {\n cm.state.draggingText(e)\n // Ensure the editor is re-focused\n setTimeout(function () { return cm.display.input.focus(); }, 20)\n return\n }\n try {\n var text$1 = e.dataTransfer.getData(\"Text\")\n if (text$1) {\n var selected\n if (cm.state.draggingText && !cm.state.draggingText.copy)\n { selected = cm.listSelections() }\n setSelectionNoUndo(cm.doc, simpleSelection(pos, pos))\n if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)\n { replaceRange(cm.doc, \"\", selected[i$1].anchor, selected[i$1].head, \"drag\") } }\n cm.replaceSelection(text$1, \"around\", \"paste\")\n cm.display.input.focus()\n }\n }\n catch(e){}\n }\n}\n\nfunction onDragStart(cm, e) {\n if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }\n if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }\n\n e.dataTransfer.setData(\"Text\", cm.getSelection())\n e.dataTransfer.effectAllowed = \"copyMove\"\n\n // Use dummy image instead of default browsers image.\n // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.\n if (e.dataTransfer.setDragImage && !safari) {\n var img = elt(\"img\", null, null, \"position: fixed; left: 0; top: 0;\")\n img.src = \"data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\"\n if (presto) {\n img.width = img.height = 1\n cm.display.wrapper.appendChild(img)\n // Force a relayout, or Opera won't use our image for some obscure reason\n img._top = img.offsetTop\n }\n e.dataTransfer.setDragImage(img, 0, 0)\n if (presto) { img.parentNode.removeChild(img) }\n }\n}\n\nfunction onDragOver(cm, e) {\n var pos = posFromMouse(cm, e)\n if (!pos) { return }\n var frag = document.createDocumentFragment()\n drawSelectionCursor(cm, pos, frag)\n if (!cm.display.dragCursor) {\n cm.display.dragCursor = elt(\"div\", null, \"CodeMirror-cursors CodeMirror-dragcursors\")\n cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv)\n }\n removeChildrenAndAdd(cm.display.dragCursor, frag)\n}\n\nfunction clearDragCursor(cm) {\n if (cm.display.dragCursor) {\n cm.display.lineSpace.removeChild(cm.display.dragCursor)\n cm.display.dragCursor = null\n }\n}\n\n// These must be handled carefully, because naively registering a\n// handler for each editor will cause the editors to never be\n// garbage collected.\n\nfunction forEachCodeMirror(f) {\n if (!document.getElementsByClassName) { return }\n var byClass = document.getElementsByClassName(\"CodeMirror\")\n for (var i = 0; i < byClass.length; i++) {\n var cm = byClass[i].CodeMirror\n if (cm) { f(cm) }\n }\n}\n\nvar globalsRegistered = false\nfunction ensureGlobalHandlers() {\n if (globalsRegistered) { return }\n registerGlobalHandlers()\n globalsRegistered = true\n}\nfunction registerGlobalHandlers() {\n // When the window resizes, we need to refresh active editors.\n var resizeTimer\n on(window, \"resize\", function () {\n if (resizeTimer == null) { resizeTimer = setTimeout(function () {\n resizeTimer = null\n forEachCodeMirror(onResize)\n }, 100) }\n })\n // When the window loses focus, we want to show the editor as blurred\n on(window, \"blur\", function () { return forEachCodeMirror(onBlur); })\n}\n// Called when the window resizes\nfunction onResize(cm) {\n var d = cm.display\n if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)\n { return }\n // Might be a text scaling operation, clear size caches.\n d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null\n d.scrollbarsClipped = false\n cm.setSize()\n}\n\nvar keyNames = {\n 3: \"Enter\", 8: \"Backspace\", 9: \"Tab\", 13: \"Enter\", 16: \"Shift\", 17: \"Ctrl\", 18: \"Alt\",\n 19: \"Pause\", 20: \"CapsLock\", 27: \"Esc\", 32: \"Space\", 33: \"PageUp\", 34: \"PageDown\", 35: \"End\",\n 36: \"Home\", 37: \"Left\", 38: \"Up\", 39: \"Right\", 40: \"Down\", 44: \"PrintScrn\", 45: \"Insert\",\n 46: \"Delete\", 59: \";\", 61: \"=\", 91: \"Mod\", 92: \"Mod\", 93: \"Mod\",\n 106: \"*\", 107: \"=\", 109: \"-\", 110: \".\", 111: \"/\", 127: \"Delete\",\n 173: \"-\", 186: \";\", 187: \"=\", 188: \",\", 189: \"-\", 190: \".\", 191: \"/\", 192: \"`\", 219: \"[\", 220: \"\\\\\",\n 221: \"]\", 222: \"'\", 63232: \"Up\", 63233: \"Down\", 63234: \"Left\", 63235: \"Right\", 63272: \"Delete\",\n 63273: \"Home\", 63275: \"End\", 63276: \"PageUp\", 63277: \"PageDown\", 63302: \"Insert\"\n}\n\n// Number keys\nfor (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i) }\n// Alphabetic keys\nfor (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1) }\n// Function keys\nfor (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = \"F\" + i$2 }\n\nvar keyMap = {}\n\nkeyMap.basic = {\n \"Left\": \"goCharLeft\", \"Right\": \"goCharRight\", \"Up\": \"goLineUp\", \"Down\": \"goLineDown\",\n \"End\": \"goLineEnd\", \"Home\": \"goLineStartSmart\", \"PageUp\": \"goPageUp\", \"PageDown\": \"goPageDown\",\n \"Delete\": \"delCharAfter\", \"Backspace\": \"delCharBefore\", \"Shift-Backspace\": \"delCharBefore\",\n \"Tab\": \"defaultTab\", \"Shift-Tab\": \"indentAuto\",\n \"Enter\": \"newlineAndIndent\", \"Insert\": \"toggleOverwrite\",\n \"Esc\": \"singleSelection\"\n}\n// Note that the save and find-related commands aren't defined by\n// default. User code or addons can define them. Unknown commands\n// are simply ignored.\nkeyMap.pcDefault = {\n \"Ctrl-A\": \"selectAll\", \"Ctrl-D\": \"deleteLine\", \"Ctrl-Z\": \"undo\", \"Shift-Ctrl-Z\": \"redo\", \"Ctrl-Y\": \"redo\",\n \"Ctrl-Home\": \"goDocStart\", \"Ctrl-End\": \"goDocEnd\", \"Ctrl-Up\": \"goLineUp\", \"Ctrl-Down\": \"goLineDown\",\n \"Ctrl-Left\": \"goGroupLeft\", \"Ctrl-Right\": \"goGroupRight\", \"Alt-Left\": \"goLineStart\", \"Alt-Right\": \"goLineEnd\",\n \"Ctrl-Backspace\": \"delGroupBefore\", \"Ctrl-Delete\": \"delGroupAfter\", \"Ctrl-S\": \"save\", \"Ctrl-F\": \"find\",\n \"Ctrl-G\": \"findNext\", \"Shift-Ctrl-G\": \"findPrev\", \"Shift-Ctrl-F\": \"replace\", \"Shift-Ctrl-R\": \"replaceAll\",\n \"Ctrl-[\": \"indentLess\", \"Ctrl-]\": \"indentMore\",\n \"Ctrl-U\": \"undoSelection\", \"Shift-Ctrl-U\": \"redoSelection\", \"Alt-U\": \"redoSelection\",\n fallthrough: \"basic\"\n}\n// Very basic readline/emacs-style bindings, which are standard on Mac.\nkeyMap.emacsy = {\n \"Ctrl-F\": \"goCharRight\", \"Ctrl-B\": \"goCharLeft\", \"Ctrl-P\": \"goLineUp\", \"Ctrl-N\": \"goLineDown\",\n \"Alt-F\": \"goWordRight\", \"Alt-B\": \"goWordLeft\", \"Ctrl-A\": \"goLineStart\", \"Ctrl-E\": \"goLineEnd\",\n \"Ctrl-V\": \"goPageDown\", \"Shift-Ctrl-V\": \"goPageUp\", \"Ctrl-D\": \"delCharAfter\", \"Ctrl-H\": \"delCharBefore\",\n \"Alt-D\": \"delWordAfter\", \"Alt-Backspace\": \"delWordBefore\", \"Ctrl-K\": \"killLine\", \"Ctrl-T\": \"transposeChars\",\n \"Ctrl-O\": \"openLine\"\n}\nkeyMap.macDefault = {\n \"Cmd-A\": \"selectAll\", \"Cmd-D\": \"deleteLine\", \"Cmd-Z\": \"undo\", \"Shift-Cmd-Z\": \"redo\", \"Cmd-Y\": \"redo\",\n \"Cmd-Home\": \"goDocStart\", \"Cmd-Up\": \"goDocStart\", \"Cmd-End\": \"goDocEnd\", \"Cmd-Down\": \"goDocEnd\", \"Alt-Left\": \"goGroupLeft\",\n \"Alt-Right\": \"goGroupRight\", \"Cmd-Left\": \"goLineLeft\", \"Cmd-Right\": \"goLineRight\", \"Alt-Backspace\": \"delGroupBefore\",\n \"Ctrl-Alt-Backspace\": \"delGroupAfter\", \"Alt-Delete\": \"delGroupAfter\", \"Cmd-S\": \"save\", \"Cmd-F\": \"find\",\n \"Cmd-G\": \"findNext\", \"Shift-Cmd-G\": \"findPrev\", \"Cmd-Alt-F\": \"replace\", \"Shift-Cmd-Alt-F\": \"replaceAll\",\n \"Cmd-[\": \"indentLess\", \"Cmd-]\": \"indentMore\", \"Cmd-Backspace\": \"delWrappedLineLeft\", \"Cmd-Delete\": \"delWrappedLineRight\",\n \"Cmd-U\": \"undoSelection\", \"Shift-Cmd-U\": \"redoSelection\", \"Ctrl-Up\": \"goDocStart\", \"Ctrl-Down\": \"goDocEnd\",\n fallthrough: [\"basic\", \"emacsy\"]\n}\nkeyMap[\"default\"] = mac ? keyMap.macDefault : keyMap.pcDefault\n\n// KEYMAP DISPATCH\n\nfunction normalizeKeyName(name) {\n var parts = name.split(/-(?!$)/)\n name = parts[parts.length - 1]\n var alt, ctrl, shift, cmd\n for (var i = 0; i < parts.length - 1; i++) {\n var mod = parts[i]\n if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true }\n else if (/^a(lt)?$/i.test(mod)) { alt = true }\n else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true }\n else if (/^s(hift)?$/i.test(mod)) { shift = true }\n else { throw new Error(\"Unrecognized modifier name: \" + mod) }\n }\n if (alt) { name = \"Alt-\" + name }\n if (ctrl) { name = \"Ctrl-\" + name }\n if (cmd) { name = \"Cmd-\" + name }\n if (shift) { name = \"Shift-\" + name }\n return name\n}\n\n// This is a kludge to keep keymaps mostly working as raw objects\n// (backwards compatibility) while at the same time support features\n// like normalization and multi-stroke key bindings. It compiles a\n// new normalized keymap, and then updates the old object to reflect\n// this.\nfunction normalizeKeyMap(keymap) {\n var copy = {}\n for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {\n var value = keymap[keyname]\n if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }\n if (value == \"...\") { delete keymap[keyname]; continue }\n\n var keys = map(keyname.split(\" \"), normalizeKeyName)\n for (var i = 0; i < keys.length; i++) {\n var val = (void 0), name = (void 0)\n if (i == keys.length - 1) {\n name = keys.join(\" \")\n val = value\n } else {\n name = keys.slice(0, i + 1).join(\" \")\n val = \"...\"\n }\n var prev = copy[name]\n if (!prev) { copy[name] = val }\n else if (prev != val) { throw new Error(\"Inconsistent bindings for \" + name) }\n }\n delete keymap[keyname]\n } }\n for (var prop in copy) { keymap[prop] = copy[prop] }\n return keymap\n}\n\nfunction lookupKey(key, map, handle, context) {\n map = getKeyMap(map)\n var found = map.call ? map.call(key, context) : map[key]\n if (found === false) { return \"nothing\" }\n if (found === \"...\") { return \"multi\" }\n if (found != null && handle(found)) { return \"handled\" }\n\n if (map.fallthrough) {\n if (Object.prototype.toString.call(map.fallthrough) != \"[object Array]\")\n { return lookupKey(key, map.fallthrough, handle, context) }\n for (var i = 0; i < map.fallthrough.length; i++) {\n var result = lookupKey(key, map.fallthrough[i], handle, context)\n if (result) { return result }\n }\n }\n}\n\n// Modifier key presses don't count as 'real' key presses for the\n// purpose of keymap fallthrough.\nfunction isModifierKey(value) {\n var name = typeof value == \"string\" ? value : keyNames[value.keyCode]\n return name == \"Ctrl\" || name == \"Alt\" || name == \"Shift\" || name == \"Mod\"\n}\n\nfunction addModifierNames(name, event, noShift) {\n var base = name\n if (event.altKey && base != \"Alt\") { name = \"Alt-\" + name }\n if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != \"Ctrl\") { name = \"Ctrl-\" + name }\n if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != \"Cmd\") { name = \"Cmd-\" + name }\n if (!noShift && event.shiftKey && base != \"Shift\") { name = \"Shift-\" + name }\n return name\n}\n\n// Look up the name of a key as indicated by an event object.\nfunction keyName(event, noShift) {\n if (presto && event.keyCode == 34 && event[\"char\"]) { return false }\n var name = keyNames[event.keyCode]\n if (name == null || event.altGraphKey) { return false }\n return addModifierNames(name, event, noShift)\n}\n\nfunction getKeyMap(val) {\n return typeof val == \"string\" ? keyMap[val] : val\n}\n\n// Helper for deleting text near the selection(s), used to implement\n// backspace, delete, and similar functionality.\nfunction deleteNearSelection(cm, compute) {\n var ranges = cm.doc.sel.ranges, kill = []\n // Build up a set of ranges to kill first, merging overlapping\n // ranges.\n for (var i = 0; i < ranges.length; i++) {\n var toKill = compute(ranges[i])\n while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {\n var replaced = kill.pop()\n if (cmp(replaced.from, toKill.from) < 0) {\n toKill.from = replaced.from\n break\n }\n }\n kill.push(toKill)\n }\n // Next, remove those actual ranges.\n runInOp(cm, function () {\n for (var i = kill.length - 1; i >= 0; i--)\n { replaceRange(cm.doc, \"\", kill[i].from, kill[i].to, \"+delete\") }\n ensureCursorVisible(cm)\n })\n}\n\n// Commands are parameter-less actions that can be performed on an\n// editor, mostly used for keybindings.\nvar commands = {\n selectAll: selectAll,\n singleSelection: function (cm) { return cm.setSelection(cm.getCursor(\"anchor\"), cm.getCursor(\"head\"), sel_dontScroll); },\n killLine: function (cm) { return deleteNearSelection(cm, function (range) {\n if (range.empty()) {\n var len = getLine(cm.doc, range.head.line).text.length\n if (range.head.ch == len && range.head.line < cm.lastLine())\n { return {from: range.head, to: Pos(range.head.line + 1, 0)} }\n else\n { return {from: range.head, to: Pos(range.head.line, len)} }\n } else {\n return {from: range.from(), to: range.to()}\n }\n }); },\n deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({\n from: Pos(range.from().line, 0),\n to: clipPos(cm.doc, Pos(range.to().line + 1, 0))\n }); }); },\n delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({\n from: Pos(range.from().line, 0), to: range.from()\n }); }); },\n delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {\n var top = cm.charCoords(range.head, \"div\").top + 5\n var leftPos = cm.coordsChar({left: 0, top: top}, \"div\")\n return {from: leftPos, to: range.from()}\n }); },\n delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {\n var top = cm.charCoords(range.head, \"div\").top + 5\n var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\")\n return {from: range.from(), to: rightPos }\n }); },\n undo: function (cm) { return cm.undo(); },\n redo: function (cm) { return cm.redo(); },\n undoSelection: function (cm) { return cm.undoSelection(); },\n redoSelection: function (cm) { return cm.redoSelection(); },\n goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },\n goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },\n goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },\n {origin: \"+move\", bias: 1}\n ); },\n goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },\n {origin: \"+move\", bias: 1}\n ); },\n goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },\n {origin: \"+move\", bias: -1}\n ); },\n goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {\n var top = cm.cursorCoords(range.head, \"div\").top + 5\n return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, \"div\")\n }, sel_move); },\n goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {\n var top = cm.cursorCoords(range.head, \"div\").top + 5\n return cm.coordsChar({left: 0, top: top}, \"div\")\n }, sel_move); },\n goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {\n var top = cm.cursorCoords(range.head, \"div\").top + 5\n var pos = cm.coordsChar({left: 0, top: top}, \"div\")\n if (pos.ch < cm.getLine(pos.line).search(/\\S/)) { return lineStartSmart(cm, range.head) }\n return pos\n }, sel_move); },\n goLineUp: function (cm) { return cm.moveV(-1, \"line\"); },\n goLineDown: function (cm) { return cm.moveV(1, \"line\"); },\n goPageUp: function (cm) { return cm.moveV(-1, \"page\"); },\n goPageDown: function (cm) { return cm.moveV(1, \"page\"); },\n goCharLeft: function (cm) { return cm.moveH(-1, \"char\"); },\n goCharRight: function (cm) { return cm.moveH(1, \"char\"); },\n goColumnLeft: function (cm) { return cm.moveH(-1, \"column\"); },\n goColumnRight: function (cm) { return cm.moveH(1, \"column\"); },\n goWordLeft: function (cm) { return cm.moveH(-1, \"word\"); },\n goGroupRight: function (cm) { return cm.moveH(1, \"group\"); },\n goGroupLeft: function (cm) { return cm.moveH(-1, \"group\"); },\n goWordRight: function (cm) { return cm.moveH(1, \"word\"); },\n delCharBefore: function (cm) { return cm.deleteH(-1, \"char\"); },\n delCharAfter: function (cm) { return cm.deleteH(1, \"char\"); },\n delWordBefore: function (cm) { return cm.deleteH(-1, \"word\"); },\n delWordAfter: function (cm) { return cm.deleteH(1, \"word\"); },\n delGroupBefore: function (cm) { return cm.deleteH(-1, \"group\"); },\n delGroupAfter: function (cm) { return cm.deleteH(1, \"group\"); },\n indentAuto: function (cm) { return cm.indentSelection(\"smart\"); },\n indentMore: function (cm) { return cm.indentSelection(\"add\"); },\n indentLess: function (cm) { return cm.indentSelection(\"subtract\"); },\n insertTab: function (cm) { return cm.replaceSelection(\"\\t\"); },\n insertSoftTab: function (cm) {\n var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize\n for (var i = 0; i < ranges.length; i++) {\n var pos = ranges[i].from()\n var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize)\n spaces.push(spaceStr(tabSize - col % tabSize))\n }\n cm.replaceSelections(spaces)\n },\n defaultTab: function (cm) {\n if (cm.somethingSelected()) { cm.indentSelection(\"add\") }\n else { cm.execCommand(\"insertTab\") }\n },\n // Swap the two chars left and right of each selection's head.\n // Move cursor behind the two swapped characters afterwards.\n //\n // Doesn't consider line feeds a character.\n // Doesn't scan more than one line above to find a character.\n // Doesn't do anything on an empty line.\n // Doesn't do anything with non-empty selections.\n transposeChars: function (cm) { return runInOp(cm, function () {\n var ranges = cm.listSelections(), newSel = []\n for (var i = 0; i < ranges.length; i++) {\n if (!ranges[i].empty()) { continue }\n var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text\n if (line) {\n if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1) }\n if (cur.ch > 0) {\n cur = new Pos(cur.line, cur.ch + 1)\n cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),\n Pos(cur.line, cur.ch - 2), cur, \"+transpose\")\n } else if (cur.line > cm.doc.first) {\n var prev = getLine(cm.doc, cur.line - 1).text\n if (prev) {\n cur = new Pos(cur.line, 1)\n cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +\n prev.charAt(prev.length - 1),\n Pos(cur.line - 1, prev.length - 1), cur, \"+transpose\")\n }\n }\n }\n newSel.push(new Range(cur, cur))\n }\n cm.setSelections(newSel)\n }); },\n newlineAndIndent: function (cm) { return runInOp(cm, function () {\n var sels = cm.listSelections()\n for (var i = sels.length - 1; i >= 0; i--)\n { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, \"+input\") }\n sels = cm.listSelections()\n for (var i$1 = 0; i$1 < sels.length; i$1++)\n { cm.indentLine(sels[i$1].from().line, null, true) }\n ensureCursorVisible(cm)\n }); },\n openLine: function (cm) { return cm.replaceSelection(\"\\n\", \"start\"); },\n toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }\n}\n\n\nfunction lineStart(cm, lineN) {\n var line = getLine(cm.doc, lineN)\n var visual = visualLine(line)\n if (visual != line) { lineN = lineNo(visual) }\n return endOfLine(true, cm, visual, lineN, 1)\n}\nfunction lineEnd(cm, lineN) {\n var line = getLine(cm.doc, lineN)\n var visual = visualLineEnd(line)\n if (visual != line) { lineN = lineNo(visual) }\n return endOfLine(true, cm, line, lineN, -1)\n}\nfunction lineStartSmart(cm, pos) {\n var start = lineStart(cm, pos.line)\n var line = getLine(cm.doc, start.line)\n var order = getOrder(line, cm.doc.direction)\n if (!order || order[0].level == 0) {\n var firstNonWS = Math.max(0, line.text.search(/\\S/))\n var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch\n return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)\n }\n return start\n}\n\n// Run a handler that was bound to a key.\nfunction doHandleBinding(cm, bound, dropShift) {\n if (typeof bound == \"string\") {\n bound = commands[bound]\n if (!bound) { return false }\n }\n // Ensure previous input has been read, so that the handler sees a\n // consistent view of the document\n cm.display.input.ensurePolled()\n var prevShift = cm.display.shift, done = false\n try {\n if (cm.isReadOnly()) { cm.state.suppressEdits = true }\n if (dropShift) { cm.display.shift = false }\n done = bound(cm) != Pass\n } finally {\n cm.display.shift = prevShift\n cm.state.suppressEdits = false\n }\n return done\n}\n\nfunction lookupKeyForEditor(cm, name, handle) {\n for (var i = 0; i < cm.state.keyMaps.length; i++) {\n var result = lookupKey(name, cm.state.keyMaps[i], handle, cm)\n if (result) { return result }\n }\n return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))\n || lookupKey(name, cm.options.keyMap, handle, cm)\n}\n\n// Note that, despite the name, this function is also used to check\n// for bound mouse clicks.\n\nvar stopSeq = new Delayed\nfunction dispatchKey(cm, name, e, handle) {\n var seq = cm.state.keySeq\n if (seq) {\n if (isModifierKey(name)) { return \"handled\" }\n stopSeq.set(50, function () {\n if (cm.state.keySeq == seq) {\n cm.state.keySeq = null\n cm.display.input.reset()\n }\n })\n name = seq + \" \" + name\n }\n var result = lookupKeyForEditor(cm, name, handle)\n\n if (result == \"multi\")\n { cm.state.keySeq = name }\n if (result == \"handled\")\n { signalLater(cm, \"keyHandled\", cm, name, e) }\n\n if (result == \"handled\" || result == \"multi\") {\n e_preventDefault(e)\n restartBlink(cm)\n }\n\n if (seq && !result && /\\'$/.test(name)) {\n e_preventDefault(e)\n return true\n }\n return !!result\n}\n\n// Handle a key from the keydown event.\nfunction handleKeyBinding(cm, e) {\n var name = keyName(e, true)\n if (!name) { return false }\n\n if (e.shiftKey && !cm.state.keySeq) {\n // First try to resolve full name (including 'Shift-'). Failing\n // that, see if there is a cursor-motion command (starting with\n // 'go') bound to the keyname without 'Shift-'.\n return dispatchKey(cm, \"Shift-\" + name, e, function (b) { return doHandleBinding(cm, b, true); })\n || dispatchKey(cm, name, e, function (b) {\n if (typeof b == \"string\" ? /^go[A-Z]/.test(b) : b.motion)\n { return doHandleBinding(cm, b) }\n })\n } else {\n return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })\n }\n}\n\n// Handle a key from the keypress event\nfunction handleCharBinding(cm, e, ch) {\n return dispatchKey(cm, \"'\" + ch + \"'\", e, function (b) { return doHandleBinding(cm, b, true); })\n}\n\nvar lastStoppedKey = null\nfunction onKeyDown(e) {\n var cm = this\n cm.curOp.focus = activeElt()\n if (signalDOMEvent(cm, e)) { return }\n // IE does strange things with escape.\n if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false }\n var code = e.keyCode\n cm.display.shift = code == 16 || e.shiftKey\n var handled = handleKeyBinding(cm, e)\n if (presto) {\n lastStoppedKey = handled ? code : null\n // Opera has no cut event... we try to at least catch the key combo\n if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))\n { cm.replaceSelection(\"\", null, \"cut\") }\n }\n\n // Turn mouse into crosshair when Alt is held on Mac.\n if (code == 18 && !/\\bCodeMirror-crosshair\\b/.test(cm.display.lineDiv.className))\n { showCrossHair(cm) }\n}\n\nfunction showCrossHair(cm) {\n var lineDiv = cm.display.lineDiv\n addClass(lineDiv, \"CodeMirror-crosshair\")\n\n function up(e) {\n if (e.keyCode == 18 || !e.altKey) {\n rmClass(lineDiv, \"CodeMirror-crosshair\")\n off(document, \"keyup\", up)\n off(document, \"mouseover\", up)\n }\n }\n on(document, \"keyup\", up)\n on(document, \"mouseover\", up)\n}\n\nfunction onKeyUp(e) {\n if (e.keyCode == 16) { this.doc.sel.shift = false }\n signalDOMEvent(this, e)\n}\n\nfunction onKeyPress(e) {\n var cm = this\n if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }\n var keyCode = e.keyCode, charCode = e.charCode\n if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}\n if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }\n var ch = String.fromCharCode(charCode == null ? keyCode : charCode)\n // Some browsers fire keypress events for backspace\n if (ch == \"\\x08\") { return }\n if (handleCharBinding(cm, e, ch)) { return }\n cm.display.input.onKeyPress(e)\n}\n\nvar DOUBLECLICK_DELAY = 400\n\nvar PastClick = function(time, pos, button) {\n this.time = time\n this.pos = pos\n this.button = button\n};\n\nPastClick.prototype.compare = function (time, pos, button) {\n return this.time + DOUBLECLICK_DELAY > time &&\n cmp(pos, this.pos) == 0 && button == this.button\n};\n\nvar lastClick;\nvar lastDoubleClick;\nfunction clickRepeat(pos, button) {\n var now = +new Date\n if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) {\n lastClick = lastDoubleClick = null\n return \"triple\"\n } else if (lastClick && lastClick.compare(now, pos, button)) {\n lastDoubleClick = new PastClick(now, pos, button)\n lastClick = null\n return \"double\"\n } else {\n lastClick = new PastClick(now, pos, button)\n lastDoubleClick = null\n return \"single\"\n }\n}\n\n// A mouse down can be a single click, double click, triple click,\n// start of selection drag, start of text drag, new cursor\n// (ctrl-click), rectangle drag (alt-drag), or xwin\n// middle-click-paste. Or it might be a click on something we should\n// not interfere with, such as a scrollbar or widget.\nfunction onMouseDown(e) {\n var cm = this, display = cm.display\n if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }\n display.input.ensurePolled()\n display.shift = e.shiftKey\n\n if (eventInWidget(display, e)) {\n if (!webkit) {\n // Briefly turn off draggability, to allow widgets to do\n // normal dragging things.\n display.scroller.draggable = false\n setTimeout(function () { return display.scroller.draggable = true; }, 100)\n }\n return\n }\n if (clickInGutter(cm, e)) { return }\n var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : \"single\"\n window.focus()\n\n // #3261: make sure, that we're not starting a second selection\n if (button == 1 && cm.state.selectingText)\n { cm.state.selectingText(e) }\n\n if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return }\n\n if (button == 1) {\n if (pos) { leftButtonDown(cm, pos, repeat, e) }\n else if (e_target(e) == display.scroller) { e_preventDefault(e) }\n } else if (button == 2) {\n if (pos) { extendSelection(cm.doc, pos) }\n setTimeout(function () { return display.input.focus(); }, 20)\n } else if (button == 3) {\n if (captureRightClick) { onContextMenu(cm, e) }\n else { delayBlurEvent(cm) }\n }\n}\n\nfunction handleMappedButton(cm, button, pos, repeat, event) {\n var name = \"Click\"\n if (repeat == \"double\") { name = \"Double\" + name }\n else if (repeat == \"triple\") { name = \"Triple\" + name }\n name = (button == 1 ? \"Left\" : button == 2 ? \"Middle\" : \"Right\") + name\n\n return dispatchKey(cm, addModifierNames(name, event), event, function (bound) {\n if (typeof bound == \"string\") { bound = commands[bound] }\n if (!bound) { return false }\n var done = false\n try {\n if (cm.isReadOnly()) { cm.state.suppressEdits = true }\n done = bound(cm, pos) != Pass\n } finally {\n cm.state.suppressEdits = false\n }\n return done\n })\n}\n\nfunction configureMouse(cm, repeat, event) {\n var option = cm.getOption(\"configureMouse\")\n var value = option ? option(cm, repeat, event) : {}\n if (value.unit == null) {\n var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey\n value.unit = rect ? \"rectangle\" : repeat == \"single\" ? \"char\" : repeat == \"double\" ? \"word\" : \"line\"\n }\n if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey }\n if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey }\n if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey) }\n return value\n}\n\nfunction leftButtonDown(cm, pos, repeat, event) {\n if (ie) { setTimeout(bind(ensureFocus, cm), 0) }\n else { cm.curOp.focus = activeElt() }\n\n var behavior = configureMouse(cm, repeat, event)\n\n var sel = cm.doc.sel, contained\n if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&\n repeat == \"single\" && (contained = sel.contains(pos)) > -1 &&\n (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) &&\n (cmp(contained.to(), pos) > 0 || pos.xRel < 0))\n { leftButtonStartDrag(cm, event, pos, behavior) }\n else\n { leftButtonSelect(cm, event, pos, behavior) }\n}\n\n// Start a text drag. When it ends, see if any dragging actually\n// happen, and treat as a click if it didn't.\nfunction leftButtonStartDrag(cm, event, pos, behavior) {\n var display = cm.display, moved = false\n var dragEnd = operation(cm, function (e) {\n if (webkit) { display.scroller.draggable = false }\n cm.state.draggingText = false\n off(document, \"mouseup\", dragEnd)\n off(document, \"mousemove\", mouseMove)\n off(display.scroller, \"dragstart\", dragStart)\n off(display.scroller, \"drop\", dragEnd)\n if (!moved) {\n e_preventDefault(e)\n if (!behavior.addNew)\n { extendSelection(cm.doc, pos, null, null, behavior.extend) }\n // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)\n if (webkit || ie && ie_version == 9)\n { setTimeout(function () {document.body.focus(); display.input.focus()}, 20) }\n else\n { display.input.focus() }\n }\n })\n var mouseMove = function(e2) {\n moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10\n }\n var dragStart = function () { return moved = true; }\n // Let the drag handler handle this.\n if (webkit) { display.scroller.draggable = true }\n cm.state.draggingText = dragEnd\n dragEnd.copy = !behavior.moveOnDrag\n // IE's approach to draggable\n if (display.scroller.dragDrop) { display.scroller.dragDrop() }\n on(document, \"mouseup\", dragEnd)\n on(document, \"mousemove\", mouseMove)\n on(display.scroller, \"dragstart\", dragStart)\n on(display.scroller, \"drop\", dragEnd)\n\n delayBlurEvent(cm)\n setTimeout(function () { return display.input.focus(); }, 20)\n}\n\nfunction rangeForUnit(cm, pos, unit) {\n if (unit == \"char\") { return new Range(pos, pos) }\n if (unit == \"word\") { return cm.findWordAt(pos) }\n if (unit == \"line\") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }\n var result = unit(cm, pos)\n return new Range(result.from, result.to)\n}\n\n// Normal selection, as opposed to text dragging.\nfunction leftButtonSelect(cm, event, start, behavior) {\n var display = cm.display, doc = cm.doc\n e_preventDefault(event)\n\n var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges\n if (behavior.addNew && !behavior.extend) {\n ourIndex = doc.sel.contains(start)\n if (ourIndex > -1)\n { ourRange = ranges[ourIndex] }\n else\n { ourRange = new Range(start, start) }\n } else {\n ourRange = doc.sel.primary()\n ourIndex = doc.sel.primIndex\n }\n\n if (behavior.unit == \"rectangle\") {\n if (!behavior.addNew) { ourRange = new Range(start, start) }\n start = posFromMouse(cm, event, true, true)\n ourIndex = -1\n } else {\n var range = rangeForUnit(cm, start, behavior.unit)\n if (behavior.extend)\n { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend) }\n else\n { ourRange = range }\n }\n\n if (!behavior.addNew) {\n ourIndex = 0\n setSelection(doc, new Selection([ourRange], 0), sel_mouse)\n startSel = doc.sel\n } else if (ourIndex == -1) {\n ourIndex = ranges.length\n setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),\n {scroll: false, origin: \"*mouse\"})\n } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == \"char\" && !behavior.extend) {\n setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),\n {scroll: false, origin: \"*mouse\"})\n startSel = doc.sel\n } else {\n replaceOneSelection(doc, ourIndex, ourRange, sel_mouse)\n }\n\n var lastPos = start\n function extendTo(pos) {\n if (cmp(lastPos, pos) == 0) { return }\n lastPos = pos\n\n if (behavior.unit == \"rectangle\") {\n var ranges = [], tabSize = cm.options.tabSize\n var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize)\n var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize)\n var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol)\n for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));\n line <= end; line++) {\n var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize)\n if (left == right)\n { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))) }\n else if (text.length > leftPos)\n { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))) }\n }\n if (!ranges.length) { ranges.push(new Range(start, start)) }\n setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),\n {origin: \"*mouse\", scroll: false})\n cm.scrollIntoView(pos)\n } else {\n var oldRange = ourRange\n var range = rangeForUnit(cm, pos, behavior.unit)\n var anchor = oldRange.anchor, head\n if (cmp(range.anchor, anchor) > 0) {\n head = range.head\n anchor = minPos(oldRange.from(), range.anchor)\n } else {\n head = range.anchor\n anchor = maxPos(oldRange.to(), range.head)\n }\n var ranges$1 = startSel.ranges.slice(0)\n ranges$1[ourIndex] = new Range(clipPos(doc, anchor), head)\n setSelection(doc, normalizeSelection(ranges$1, ourIndex), sel_mouse)\n }\n }\n\n var editorSize = display.wrapper.getBoundingClientRect()\n // Used to ensure timeout re-tries don't fire when another extend\n // happened in the meantime (clearTimeout isn't reliable -- at\n // least on Chrome, the timeouts still happen even when cleared,\n // if the clear happens after their scheduled firing time).\n var counter = 0\n\n function extend(e) {\n var curCount = ++counter\n var cur = posFromMouse(cm, e, true, behavior.unit == \"rectangle\")\n if (!cur) { return }\n if (cmp(cur, lastPos) != 0) {\n cm.curOp.focus = activeElt()\n extendTo(cur)\n var visible = visibleLines(display, doc)\n if (cur.line >= visible.to || cur.line < visible.from)\n { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e) }}), 150) }\n } else {\n var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0\n if (outside) { setTimeout(operation(cm, function () {\n if (counter != curCount) { return }\n display.scroller.scrollTop += outside\n extend(e)\n }), 50) }\n }\n }\n\n function done(e) {\n cm.state.selectingText = false\n counter = Infinity\n e_preventDefault(e)\n display.input.focus()\n off(document, \"mousemove\", move)\n off(document, \"mouseup\", up)\n doc.history.lastSelOrigin = null\n }\n\n var move = operation(cm, function (e) {\n if (!e_button(e)) { done(e) }\n else { extend(e) }\n })\n var up = operation(cm, done)\n cm.state.selectingText = up\n on(document, \"mousemove\", move)\n on(document, \"mouseup\", up)\n}\n\n\n// Determines whether an event happened in the gutter, and fires the\n// handlers for the corresponding event.\nfunction gutterEvent(cm, e, type, prevent) {\n var mX, mY\n try { mX = e.clientX; mY = e.clientY }\n catch(e) { return false }\n if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }\n if (prevent) { e_preventDefault(e) }\n\n var display = cm.display\n var lineBox = display.lineDiv.getBoundingClientRect()\n\n if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }\n mY -= lineBox.top - display.viewOffset\n\n for (var i = 0; i < cm.options.gutters.length; ++i) {\n var g = display.gutters.childNodes[i]\n if (g && g.getBoundingClientRect().right >= mX) {\n var line = lineAtHeight(cm.doc, mY)\n var gutter = cm.options.gutters[i]\n signal(cm, type, cm, line, gutter, e)\n return e_defaultPrevented(e)\n }\n }\n}\n\nfunction clickInGutter(cm, e) {\n return gutterEvent(cm, e, \"gutterClick\", true)\n}\n\n// CONTEXT MENU HANDLING\n\n// To make the context menu work, we need to briefly unhide the\n// textarea (making it as unobtrusive as possible) to let the\n// right-click take effect on it.\nfunction onContextMenu(cm, e) {\n if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }\n if (signalDOMEvent(cm, e, \"contextmenu\")) { return }\n cm.display.input.onContextMenu(e)\n}\n\nfunction contextMenuInGutter(cm, e) {\n if (!hasHandler(cm, \"gutterContextMenu\")) { return false }\n return gutterEvent(cm, e, \"gutterContextMenu\", false)\n}\n\nfunction themeChanged(cm) {\n cm.display.wrapper.className = cm.display.wrapper.className.replace(/\\s*cm-s-\\S+/g, \"\") +\n cm.options.theme.replace(/(^|\\s)\\s*/g, \" cm-s-\")\n clearCaches(cm)\n}\n\nvar Init = {toString: function(){return \"CodeMirror.Init\"}}\n\nvar defaults = {}\nvar optionHandlers = {}\n\nfunction defineOptions(CodeMirror) {\n var optionHandlers = CodeMirror.optionHandlers\n\n function option(name, deflt, handle, notOnInit) {\n CodeMirror.defaults[name] = deflt\n if (handle) { optionHandlers[name] =\n notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old) }} : handle }\n }\n\n CodeMirror.defineOption = option\n\n // Passed to option handlers when there is no old value.\n CodeMirror.Init = Init\n\n // These two are, on init, called from the constructor because they\n // have to be initialized before the editor can start at all.\n option(\"value\", \"\", function (cm, val) { return cm.setValue(val); }, true)\n option(\"mode\", null, function (cm, val) {\n cm.doc.modeOption = val\n loadMode(cm)\n }, true)\n\n option(\"indentUnit\", 2, loadMode, true)\n option(\"indentWithTabs\", false)\n option(\"smartIndent\", true)\n option(\"tabSize\", 4, function (cm) {\n resetModeState(cm)\n clearCaches(cm)\n regChange(cm)\n }, true)\n option(\"lineSeparator\", null, function (cm, val) {\n cm.doc.lineSep = val\n if (!val) { return }\n var newBreaks = [], lineNo = cm.doc.first\n cm.doc.iter(function (line) {\n for (var pos = 0;;) {\n var found = line.text.indexOf(val, pos)\n if (found == -1) { break }\n pos = found + val.length\n newBreaks.push(Pos(lineNo, found))\n }\n lineNo++\n })\n for (var i = newBreaks.length - 1; i >= 0; i--)\n { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)) }\n })\n option(\"specialChars\", /[\\u0000-\\u001f\\u007f-\\u009f\\u00ad\\u061c\\u200b-\\u200f\\u2028\\u2029\\ufeff]/g, function (cm, val, old) {\n cm.state.specialChars = new RegExp(val.source + (val.test(\"\\t\") ? \"\" : \"|\\t\"), \"g\")\n if (old != Init) { cm.refresh() }\n })\n option(\"specialCharPlaceholder\", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true)\n option(\"electricChars\", true)\n option(\"inputStyle\", mobile ? \"contenteditable\" : \"textarea\", function () {\n throw new Error(\"inputStyle can not (yet) be changed in a running editor\") // FIXME\n }, true)\n option(\"spellcheck\", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true)\n option(\"rtlMoveVisually\", !windows)\n option(\"wholeLineUpdateBefore\", true)\n\n option(\"theme\", \"default\", function (cm) {\n themeChanged(cm)\n guttersChanged(cm)\n }, true)\n option(\"keyMap\", \"default\", function (cm, val, old) {\n var next = getKeyMap(val)\n var prev = old != Init && getKeyMap(old)\n if (prev && prev.detach) { prev.detach(cm, next) }\n if (next.attach) { next.attach(cm, prev || null) }\n })\n option(\"extraKeys\", null)\n option(\"configureMouse\", null)\n\n option(\"lineWrapping\", false, wrappingChanged, true)\n option(\"gutters\", [], function (cm) {\n setGuttersForLineNumbers(cm.options)\n guttersChanged(cm)\n }, true)\n option(\"fixedGutter\", true, function (cm, val) {\n cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + \"px\" : \"0\"\n cm.refresh()\n }, true)\n option(\"coverGutterNextToScrollbar\", false, function (cm) { return updateScrollbars(cm); }, true)\n option(\"scrollbarStyle\", \"native\", function (cm) {\n initScrollbars(cm)\n updateScrollbars(cm)\n cm.display.scrollbars.setScrollTop(cm.doc.scrollTop)\n cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft)\n }, true)\n option(\"lineNumbers\", false, function (cm) {\n setGuttersForLineNumbers(cm.options)\n guttersChanged(cm)\n }, true)\n option(\"firstLineNumber\", 1, guttersChanged, true)\n option(\"lineNumberFormatter\", function (integer) { return integer; }, guttersChanged, true)\n option(\"showCursorWhenSelecting\", false, updateSelection, true)\n\n option(\"resetSelectionOnContextMenu\", true)\n option(\"lineWiseCopyCut\", true)\n option(\"pasteLinesPerSelection\", true)\n\n option(\"readOnly\", false, function (cm, val) {\n if (val == \"nocursor\") {\n onBlur(cm)\n cm.display.input.blur()\n }\n cm.display.input.readOnlyChanged(val)\n })\n option(\"disableInput\", false, function (cm, val) {if (!val) { cm.display.input.reset() }}, true)\n option(\"dragDrop\", true, dragDropChanged)\n option(\"allowDropFileTypes\", null)\n\n option(\"cursorBlinkRate\", 530)\n option(\"cursorScrollMargin\", 0)\n option(\"cursorHeight\", 1, updateSelection, true)\n option(\"singleCursorHeightPerLine\", true, updateSelection, true)\n option(\"workTime\", 100)\n option(\"workDelay\", 100)\n option(\"flattenSpans\", true, resetModeState, true)\n option(\"addModeClass\", false, resetModeState, true)\n option(\"pollInterval\", 100)\n option(\"undoDepth\", 200, function (cm, val) { return cm.doc.history.undoDepth = val; })\n option(\"historyEventDelay\", 1250)\n option(\"viewportMargin\", 10, function (cm) { return cm.refresh(); }, true)\n option(\"maxHighlightLength\", 10000, resetModeState, true)\n option(\"moveInputWithCursor\", true, function (cm, val) {\n if (!val) { cm.display.input.resetPosition() }\n })\n\n option(\"tabindex\", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || \"\"; })\n option(\"autofocus\", null)\n option(\"direction\", \"ltr\", function (cm, val) { return cm.doc.setDirection(val); }, true)\n}\n\nfunction guttersChanged(cm) {\n updateGutters(cm)\n regChange(cm)\n alignHorizontally(cm)\n}\n\nfunction dragDropChanged(cm, value, old) {\n var wasOn = old && old != Init\n if (!value != !wasOn) {\n var funcs = cm.display.dragFunctions\n var toggle = value ? on : off\n toggle(cm.display.scroller, \"dragstart\", funcs.start)\n toggle(cm.display.scroller, \"dragenter\", funcs.enter)\n toggle(cm.display.scroller, \"dragover\", funcs.over)\n toggle(cm.display.scroller, \"dragleave\", funcs.leave)\n toggle(cm.display.scroller, \"drop\", funcs.drop)\n }\n}\n\nfunction wrappingChanged(cm) {\n if (cm.options.lineWrapping) {\n addClass(cm.display.wrapper, \"CodeMirror-wrap\")\n cm.display.sizer.style.minWidth = \"\"\n cm.display.sizerWidth = null\n } else {\n rmClass(cm.display.wrapper, \"CodeMirror-wrap\")\n findMaxLine(cm)\n }\n estimateLineHeights(cm)\n regChange(cm)\n clearCaches(cm)\n setTimeout(function () { return updateScrollbars(cm); }, 100)\n}\n\n// A CodeMirror instance represents an editor. This is the object\n// that user code is usually dealing with.\n\nfunction CodeMirror(place, options) {\n var this$1 = this;\n\n if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }\n\n this.options = options = options ? copyObj(options) : {}\n // Determine effective options based on given values and defaults.\n copyObj(defaults, options, false)\n setGuttersForLineNumbers(options)\n\n var doc = options.value\n if (typeof doc == \"string\") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction) }\n this.doc = doc\n\n var input = new CodeMirror.inputStyles[options.inputStyle](this)\n var display = this.display = new Display(place, doc, input)\n display.wrapper.CodeMirror = this\n updateGutters(this)\n themeChanged(this)\n if (options.lineWrapping)\n { this.display.wrapper.className += \" CodeMirror-wrap\" }\n initScrollbars(this)\n\n this.state = {\n keyMaps: [], // stores maps added by addKeyMap\n overlays: [], // highlighting overlays, as added by addOverlay\n modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info\n overwrite: false,\n delayingBlurEvent: false,\n focused: false,\n suppressEdits: false, // used to disable editing during key handlers when in readOnly mode\n pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll\n selectingText: false,\n draggingText: false,\n highlight: new Delayed(), // stores highlight worker timeout\n keySeq: null, // Unfinished key sequence\n specialChars: null\n }\n\n if (options.autofocus && !mobile) { display.input.focus() }\n\n // Override magic textarea content restore that IE sometimes does\n // on our hidden textarea on reload\n if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20) }\n\n registerEventHandlers(this)\n ensureGlobalHandlers()\n\n startOperation(this)\n this.curOp.forceUpdate = true\n attachDoc(this, doc)\n\n if ((options.autofocus && !mobile) || this.hasFocus())\n { setTimeout(bind(onFocus, this), 20) }\n else\n { onBlur(this) }\n\n for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))\n { optionHandlers[opt](this$1, options[opt], Init) } }\n maybeUpdateLineNumberWidth(this)\n if (options.finishInit) { options.finishInit(this) }\n for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1) }\n endOperation(this)\n // Suppress optimizelegibility in Webkit, since it breaks text\n // measuring on line wrapping boundaries.\n if (webkit && options.lineWrapping &&\n getComputedStyle(display.lineDiv).textRendering == \"optimizelegibility\")\n { display.lineDiv.style.textRendering = \"auto\" }\n}\n\n// The default configuration options.\nCodeMirror.defaults = defaults\n// Functions to run when options are changed.\nCodeMirror.optionHandlers = optionHandlers\n\n// Attach the necessary event handlers when initializing the editor\nfunction registerEventHandlers(cm) {\n var d = cm.display\n on(d.scroller, \"mousedown\", operation(cm, onMouseDown))\n // Older IE's will not fire a second mousedown for a double click\n if (ie && ie_version < 11)\n { on(d.scroller, \"dblclick\", operation(cm, function (e) {\n if (signalDOMEvent(cm, e)) { return }\n var pos = posFromMouse(cm, e)\n if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }\n e_preventDefault(e)\n var word = cm.findWordAt(pos)\n extendSelection(cm.doc, word.anchor, word.head)\n })) }\n else\n { on(d.scroller, \"dblclick\", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }) }\n // Some browsers fire contextmenu *after* opening the menu, at\n // which point we can't mess with it anymore. Context menu is\n // handled in onMouseDown for these browsers.\n if (!captureRightClick) { on(d.scroller, \"contextmenu\", function (e) { return onContextMenu(cm, e); }) }\n\n // Used to suppress mouse event handling when a touch happens\n var touchFinished, prevTouch = {end: 0}\n function finishTouch() {\n if (d.activeTouch) {\n touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000)\n prevTouch = d.activeTouch\n prevTouch.end = +new Date\n }\n }\n function isMouseLikeTouchEvent(e) {\n if (e.touches.length != 1) { return false }\n var touch = e.touches[0]\n return touch.radiusX <= 1 && touch.radiusY <= 1\n }\n function farAway(touch, other) {\n if (other.left == null) { return true }\n var dx = other.left - touch.left, dy = other.top - touch.top\n return dx * dx + dy * dy > 20 * 20\n }\n on(d.scroller, \"touchstart\", function (e) {\n if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) {\n d.input.ensurePolled()\n clearTimeout(touchFinished)\n var now = +new Date\n d.activeTouch = {start: now, moved: false,\n prev: now - prevTouch.end <= 300 ? prevTouch : null}\n if (e.touches.length == 1) {\n d.activeTouch.left = e.touches[0].pageX\n d.activeTouch.top = e.touches[0].pageY\n }\n }\n })\n on(d.scroller, \"touchmove\", function () {\n if (d.activeTouch) { d.activeTouch.moved = true }\n })\n on(d.scroller, \"touchend\", function (e) {\n var touch = d.activeTouch\n if (touch && !eventInWidget(d, e) && touch.left != null &&\n !touch.moved && new Date - touch.start < 300) {\n var pos = cm.coordsChar(d.activeTouch, \"page\"), range\n if (!touch.prev || farAway(touch, touch.prev)) // Single tap\n { range = new Range(pos, pos) }\n else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap\n { range = cm.findWordAt(pos) }\n else // Triple tap\n { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }\n cm.setSelection(range.anchor, range.head)\n cm.focus()\n e_preventDefault(e)\n }\n finishTouch()\n })\n on(d.scroller, \"touchcancel\", finishTouch)\n\n // Sync scrolling between fake scrollbars and real scrollable\n // area, ensure viewport is updated when scrolling.\n on(d.scroller, \"scroll\", function () {\n if (d.scroller.clientHeight) {\n updateScrollTop(cm, d.scroller.scrollTop)\n setScrollLeft(cm, d.scroller.scrollLeft, true)\n signal(cm, \"scroll\", cm)\n }\n })\n\n // Listen to wheel events in order to try and update the viewport on time.\n on(d.scroller, \"mousewheel\", function (e) { return onScrollWheel(cm, e); })\n on(d.scroller, \"DOMMouseScroll\", function (e) { return onScrollWheel(cm, e); })\n\n // Prevent wrapper from ever scrolling\n on(d.wrapper, \"scroll\", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; })\n\n d.dragFunctions = {\n enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e) }},\n over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e) }},\n start: function (e) { return onDragStart(cm, e); },\n drop: operation(cm, onDrop),\n leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm) }}\n }\n\n var inp = d.input.getField()\n on(inp, \"keyup\", function (e) { return onKeyUp.call(cm, e); })\n on(inp, \"keydown\", operation(cm, onKeyDown))\n on(inp, \"keypress\", operation(cm, onKeyPress))\n on(inp, \"focus\", function (e) { return onFocus(cm, e); })\n on(inp, \"blur\", function (e) { return onBlur(cm, e); })\n}\n\nvar initHooks = []\nCodeMirror.defineInitHook = function (f) { return initHooks.push(f); }\n\n// Indent the given line. The how parameter can be \"smart\",\n// \"add\"/null, \"subtract\", or \"prev\". When aggressive is false\n// (typically set to true for forced single-line indents), empty\n// lines are not indented, and places where the mode returns Pass\n// are left alone.\nfunction indentLine(cm, n, how, aggressive) {\n var doc = cm.doc, state\n if (how == null) { how = \"add\" }\n if (how == \"smart\") {\n // Fall back to \"prev\" when the mode doesn't have an indentation\n // method.\n if (!doc.mode.indent) { how = \"prev\" }\n else { state = getContextBefore(cm, n).state }\n }\n\n var tabSize = cm.options.tabSize\n var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize)\n if (line.stateAfter) { line.stateAfter = null }\n var curSpaceString = line.text.match(/^\\s*/)[0], indentation\n if (!aggressive && !/\\S/.test(line.text)) {\n indentation = 0\n how = \"not\"\n } else if (how == \"smart\") {\n indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text)\n if (indentation == Pass || indentation > 150) {\n if (!aggressive) { return }\n how = \"prev\"\n }\n }\n if (how == \"prev\") {\n if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize) }\n else { indentation = 0 }\n } else if (how == \"add\") {\n indentation = curSpace + cm.options.indentUnit\n } else if (how == \"subtract\") {\n indentation = curSpace - cm.options.indentUnit\n } else if (typeof how == \"number\") {\n indentation = curSpace + how\n }\n indentation = Math.max(0, indentation)\n\n var indentString = \"\", pos = 0\n if (cm.options.indentWithTabs)\n { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += \"\\t\"} }\n if (pos < indentation) { indentString += spaceStr(indentation - pos) }\n\n if (indentString != curSpaceString) {\n replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), \"+input\")\n line.stateAfter = null\n return true\n } else {\n // Ensure that, if the cursor was in the whitespace at the start\n // of the line, it is moved to the end of that space.\n for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {\n var range = doc.sel.ranges[i$1]\n if (range.head.line == n && range.head.ch < curSpaceString.length) {\n var pos$1 = Pos(n, curSpaceString.length)\n replaceOneSelection(doc, i$1, new Range(pos$1, pos$1))\n break\n }\n }\n }\n}\n\n// This will be set to a {lineWise: bool, text: [string]} object, so\n// that, when pasting, we know what kind of selections the copied\n// text was made out of.\nvar lastCopied = null\n\nfunction setLastCopied(newLastCopied) {\n lastCopied = newLastCopied\n}\n\nfunction applyTextInput(cm, inserted, deleted, sel, origin) {\n var doc = cm.doc\n cm.display.shift = false\n if (!sel) { sel = doc.sel }\n\n var paste = cm.state.pasteIncoming || origin == \"paste\"\n var textLines = splitLinesAuto(inserted), multiPaste = null\n // When pasing N lines into N selections, insert one line per selection\n if (paste && sel.ranges.length > 1) {\n if (lastCopied && lastCopied.text.join(\"\\n\") == inserted) {\n if (sel.ranges.length % lastCopied.text.length == 0) {\n multiPaste = []\n for (var i = 0; i < lastCopied.text.length; i++)\n { multiPaste.push(doc.splitLines(lastCopied.text[i])) }\n }\n } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) {\n multiPaste = map(textLines, function (l) { return [l]; })\n }\n }\n\n var updateInput\n // Normal behavior is to insert the new text into every selection\n for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {\n var range = sel.ranges[i$1]\n var from = range.from(), to = range.to()\n if (range.empty()) {\n if (deleted && deleted > 0) // Handle deletion\n { from = Pos(from.line, from.ch - deleted) }\n else if (cm.state.overwrite && !paste) // Handle overwrite\n { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)) }\n else if (lastCopied && lastCopied.lineWise && lastCopied.text.join(\"\\n\") == inserted)\n { from = to = Pos(from.line, 0) }\n }\n updateInput = cm.curOp.updateInput\n var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,\n origin: origin || (paste ? \"paste\" : cm.state.cutIncoming ? \"cut\" : \"+input\")}\n makeChange(cm.doc, changeEvent)\n signalLater(cm, \"inputRead\", cm, changeEvent)\n }\n if (inserted && !paste)\n { triggerElectric(cm, inserted) }\n\n ensureCursorVisible(cm)\n cm.curOp.updateInput = updateInput\n cm.curOp.typing = true\n cm.state.pasteIncoming = cm.state.cutIncoming = false\n}\n\nfunction handlePaste(e, cm) {\n var pasted = e.clipboardData && e.clipboardData.getData(\"Text\")\n if (pasted) {\n e.preventDefault()\n if (!cm.isReadOnly() && !cm.options.disableInput)\n { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, \"paste\"); }) }\n return true\n }\n}\n\nfunction triggerElectric(cm, inserted) {\n // When an 'electric' character is inserted, immediately trigger a reindent\n if (!cm.options.electricChars || !cm.options.smartIndent) { return }\n var sel = cm.doc.sel\n\n for (var i = sel.ranges.length - 1; i >= 0; i--) {\n var range = sel.ranges[i]\n if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }\n var mode = cm.getModeAt(range.head)\n var indented = false\n if (mode.electricChars) {\n for (var j = 0; j < mode.electricChars.length; j++)\n { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {\n indented = indentLine(cm, range.head.line, \"smart\")\n break\n } }\n } else if (mode.electricInput) {\n if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))\n { indented = indentLine(cm, range.head.line, \"smart\") }\n }\n if (indented) { signalLater(cm, \"electricInput\", cm, range.head.line) }\n }\n}\n\nfunction copyableRanges(cm) {\n var text = [], ranges = []\n for (var i = 0; i < cm.doc.sel.ranges.length; i++) {\n var line = cm.doc.sel.ranges[i].head.line\n var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}\n ranges.push(lineRange)\n text.push(cm.getRange(lineRange.anchor, lineRange.head))\n }\n return {text: text, ranges: ranges}\n}\n\nfunction disableBrowserMagic(field, spellcheck) {\n field.setAttribute(\"autocorrect\", \"off\")\n field.setAttribute(\"autocapitalize\", \"off\")\n field.setAttribute(\"spellcheck\", !!spellcheck)\n}\n\nfunction hiddenTextarea() {\n var te = elt(\"textarea\", null, null, \"position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none\")\n var div = elt(\"div\", [te], null, \"overflow: hidden; position: relative; width: 3px; height: 0px;\")\n // The textarea is kept positioned near the cursor to prevent the\n // fact that it'll be scrolled into view on input from scrolling\n // our fake cursor out of view. On webkit, when wrap=off, paste is\n // very slow. So make the area wide instead.\n if (webkit) { te.style.width = \"1000px\" }\n else { te.setAttribute(\"wrap\", \"off\") }\n // If border: 0; -- iOS fails to open keyboard (issue #1287)\n if (ios) { te.style.border = \"1px solid black\" }\n disableBrowserMagic(te)\n return div\n}\n\n// The publicly visible API. Note that methodOp(f) means\n// 'wrap f in an operation, performed on its `this` parameter'.\n\n// This is not the complete set of editor methods. Most of the\n// methods defined on the Doc type are also injected into\n// CodeMirror.prototype, for backwards compatibility and\n// convenience.\n\nfunction addEditorMethods(CodeMirror) {\n var optionHandlers = CodeMirror.optionHandlers\n\n var helpers = CodeMirror.helpers = {}\n\n CodeMirror.prototype = {\n constructor: CodeMirror,\n focus: function(){window.focus(); this.display.input.focus()},\n\n setOption: function(option, value) {\n var options = this.options, old = options[option]\n if (options[option] == value && option != \"mode\") { return }\n options[option] = value\n if (optionHandlers.hasOwnProperty(option))\n { operation(this, optionHandlers[option])(this, value, old) }\n signal(this, \"optionChange\", this, option)\n },\n\n getOption: function(option) {return this.options[option]},\n getDoc: function() {return this.doc},\n\n addKeyMap: function(map, bottom) {\n this.state.keyMaps[bottom ? \"push\" : \"unshift\"](getKeyMap(map))\n },\n removeKeyMap: function(map) {\n var maps = this.state.keyMaps\n for (var i = 0; i < maps.length; ++i)\n { if (maps[i] == map || maps[i].name == map) {\n maps.splice(i, 1)\n return true\n } }\n },\n\n addOverlay: methodOp(function(spec, options) {\n var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec)\n if (mode.startState) { throw new Error(\"Overlays may not be stateful.\") }\n insertSorted(this.state.overlays,\n {mode: mode, modeSpec: spec, opaque: options && options.opaque,\n priority: (options && options.priority) || 0},\n function (overlay) { return overlay.priority; })\n this.state.modeGen++\n regChange(this)\n }),\n removeOverlay: methodOp(function(spec) {\n var this$1 = this;\n\n var overlays = this.state.overlays\n for (var i = 0; i < overlays.length; ++i) {\n var cur = overlays[i].modeSpec\n if (cur == spec || typeof spec == \"string\" && cur.name == spec) {\n overlays.splice(i, 1)\n this$1.state.modeGen++\n regChange(this$1)\n return\n }\n }\n }),\n\n indentLine: methodOp(function(n, dir, aggressive) {\n if (typeof dir != \"string\" && typeof dir != \"number\") {\n if (dir == null) { dir = this.options.smartIndent ? \"smart\" : \"prev\" }\n else { dir = dir ? \"add\" : \"subtract\" }\n }\n if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive) }\n }),\n indentSelection: methodOp(function(how) {\n var this$1 = this;\n\n var ranges = this.doc.sel.ranges, end = -1\n for (var i = 0; i < ranges.length; i++) {\n var range = ranges[i]\n if (!range.empty()) {\n var from = range.from(), to = range.to()\n var start = Math.max(end, from.line)\n end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1\n for (var j = start; j < end; ++j)\n { indentLine(this$1, j, how) }\n var newRanges = this$1.doc.sel.ranges\n if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)\n { replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll) }\n } else if (range.head.line > end) {\n indentLine(this$1, range.head.line, how, true)\n end = range.head.line\n if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1) }\n }\n }\n }),\n\n // Fetch the parser token for a given character. Useful for hacks\n // that want to inspect the mode state (say, for completion).\n getTokenAt: function(pos, precise) {\n return takeToken(this, pos, precise)\n },\n\n getLineTokens: function(line, precise) {\n return takeToken(this, Pos(line), precise, true)\n },\n\n getTokenTypeAt: function(pos) {\n pos = clipPos(this.doc, pos)\n var styles = getLineStyles(this, getLine(this.doc, pos.line))\n var before = 0, after = (styles.length - 1) / 2, ch = pos.ch\n var type\n if (ch == 0) { type = styles[2] }\n else { for (;;) {\n var mid = (before + after) >> 1\n if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid }\n else if (styles[mid * 2 + 1] < ch) { before = mid + 1 }\n else { type = styles[mid * 2 + 2]; break }\n } }\n var cut = type ? type.indexOf(\"overlay \") : -1\n return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)\n },\n\n getModeAt: function(pos) {\n var mode = this.doc.mode\n if (!mode.innerMode) { return mode }\n return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode\n },\n\n getHelper: function(pos, type) {\n return this.getHelpers(pos, type)[0]\n },\n\n getHelpers: function(pos, type) {\n var this$1 = this;\n\n var found = []\n if (!helpers.hasOwnProperty(type)) { return found }\n var help = helpers[type], mode = this.getModeAt(pos)\n if (typeof mode[type] == \"string\") {\n if (help[mode[type]]) { found.push(help[mode[type]]) }\n } else if (mode[type]) {\n for (var i = 0; i < mode[type].length; i++) {\n var val = help[mode[type][i]]\n if (val) { found.push(val) }\n }\n } else if (mode.helperType && help[mode.helperType]) {\n found.push(help[mode.helperType])\n } else if (help[mode.name]) {\n found.push(help[mode.name])\n }\n for (var i$1 = 0; i$1 < help._global.length; i$1++) {\n var cur = help._global[i$1]\n if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1)\n { found.push(cur.val) }\n }\n return found\n },\n\n getStateAfter: function(line, precise) {\n var doc = this.doc\n line = clipLine(doc, line == null ? doc.first + doc.size - 1: line)\n return getContextBefore(this, line + 1, precise).state\n },\n\n cursorCoords: function(start, mode) {\n var pos, range = this.doc.sel.primary()\n if (start == null) { pos = range.head }\n else if (typeof start == \"object\") { pos = clipPos(this.doc, start) }\n else { pos = start ? range.from() : range.to() }\n return cursorCoords(this, pos, mode || \"page\")\n },\n\n charCoords: function(pos, mode) {\n return charCoords(this, clipPos(this.doc, pos), mode || \"page\")\n },\n\n coordsChar: function(coords, mode) {\n coords = fromCoordSystem(this, coords, mode || \"page\")\n return coordsChar(this, coords.left, coords.top)\n },\n\n lineAtHeight: function(height, mode) {\n height = fromCoordSystem(this, {top: height, left: 0}, mode || \"page\").top\n return lineAtHeight(this.doc, height + this.display.viewOffset)\n },\n heightAtLine: function(line, mode, includeWidgets) {\n var end = false, lineObj\n if (typeof line == \"number\") {\n var last = this.doc.first + this.doc.size - 1\n if (line < this.doc.first) { line = this.doc.first }\n else if (line > last) { line = last; end = true }\n lineObj = getLine(this.doc, line)\n } else {\n lineObj = line\n }\n return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || \"page\", includeWidgets || end).top +\n (end ? this.doc.height - heightAtLine(lineObj) : 0)\n },\n\n defaultTextHeight: function() { return textHeight(this.display) },\n defaultCharWidth: function() { return charWidth(this.display) },\n\n getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},\n\n addWidget: function(pos, node, scroll, vert, horiz) {\n var display = this.display\n pos = cursorCoords(this, clipPos(this.doc, pos))\n var top = pos.bottom, left = pos.left\n node.style.position = \"absolute\"\n node.setAttribute(\"cm-ignore-events\", \"true\")\n this.display.input.setUneditable(node)\n display.sizer.appendChild(node)\n if (vert == \"over\") {\n top = pos.top\n } else if (vert == \"above\" || vert == \"near\") {\n var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),\n hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth)\n // Default to positioning above (if specified and possible); otherwise default to positioning below\n if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)\n { top = pos.top - node.offsetHeight }\n else if (pos.bottom + node.offsetHeight <= vspace)\n { top = pos.bottom }\n if (left + node.offsetWidth > hspace)\n { left = hspace - node.offsetWidth }\n }\n node.style.top = top + \"px\"\n node.style.left = node.style.right = \"\"\n if (horiz == \"right\") {\n left = display.sizer.clientWidth - node.offsetWidth\n node.style.right = \"0px\"\n } else {\n if (horiz == \"left\") { left = 0 }\n else if (horiz == \"middle\") { left = (display.sizer.clientWidth - node.offsetWidth) / 2 }\n node.style.left = left + \"px\"\n }\n if (scroll)\n { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}) }\n },\n\n triggerOnKeyDown: methodOp(onKeyDown),\n triggerOnKeyPress: methodOp(onKeyPress),\n triggerOnKeyUp: onKeyUp,\n triggerOnMouseDown: methodOp(onMouseDown),\n\n execCommand: function(cmd) {\n if (commands.hasOwnProperty(cmd))\n { return commands[cmd].call(null, this) }\n },\n\n triggerElectric: methodOp(function(text) { triggerElectric(this, text) }),\n\n findPosH: function(from, amount, unit, visually) {\n var this$1 = this;\n\n var dir = 1\n if (amount < 0) { dir = -1; amount = -amount }\n var cur = clipPos(this.doc, from)\n for (var i = 0; i < amount; ++i) {\n cur = findPosH(this$1.doc, cur, dir, unit, visually)\n if (cur.hitSide) { break }\n }\n return cur\n },\n\n moveH: methodOp(function(dir, unit) {\n var this$1 = this;\n\n this.extendSelectionsBy(function (range) {\n if (this$1.display.shift || this$1.doc.extend || range.empty())\n { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }\n else\n { return dir < 0 ? range.from() : range.to() }\n }, sel_move)\n }),\n\n deleteH: methodOp(function(dir, unit) {\n var sel = this.doc.sel, doc = this.doc\n if (sel.somethingSelected())\n { doc.replaceSelection(\"\", null, \"+delete\") }\n else\n { deleteNearSelection(this, function (range) {\n var other = findPosH(doc, range.head, dir, unit, false)\n return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}\n }) }\n }),\n\n findPosV: function(from, amount, unit, goalColumn) {\n var this$1 = this;\n\n var dir = 1, x = goalColumn\n if (amount < 0) { dir = -1; amount = -amount }\n var cur = clipPos(this.doc, from)\n for (var i = 0; i < amount; ++i) {\n var coords = cursorCoords(this$1, cur, \"div\")\n if (x == null) { x = coords.left }\n else { coords.left = x }\n cur = findPosV(this$1, coords, dir, unit)\n if (cur.hitSide) { break }\n }\n return cur\n },\n\n moveV: methodOp(function(dir, unit) {\n var this$1 = this;\n\n var doc = this.doc, goals = []\n var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected()\n doc.extendSelectionsBy(function (range) {\n if (collapse)\n { return dir < 0 ? range.from() : range.to() }\n var headPos = cursorCoords(this$1, range.head, \"div\")\n if (range.goalColumn != null) { headPos.left = range.goalColumn }\n goals.push(headPos.left)\n var pos = findPosV(this$1, headPos, dir, unit)\n if (unit == \"page\" && range == doc.sel.primary())\n { addToScrollTop(this$1, charCoords(this$1, pos, \"div\").top - headPos.top) }\n return pos\n }, sel_move)\n if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)\n { doc.sel.ranges[i].goalColumn = goals[i] } }\n }),\n\n // Find the word at the given position (as returned by coordsChar).\n findWordAt: function(pos) {\n var doc = this.doc, line = getLine(doc, pos.line).text\n var start = pos.ch, end = pos.ch\n if (line) {\n var helper = this.getHelper(pos, \"wordChars\")\n if ((pos.sticky == \"before\" || end == line.length) && start) { --start; } else { ++end }\n var startChar = line.charAt(start)\n var check = isWordChar(startChar, helper)\n ? function (ch) { return isWordChar(ch, helper); }\n : /\\s/.test(startChar) ? function (ch) { return /\\s/.test(ch); }\n : function (ch) { return (!/\\s/.test(ch) && !isWordChar(ch)); }\n while (start > 0 && check(line.charAt(start - 1))) { --start }\n while (end < line.length && check(line.charAt(end))) { ++end }\n }\n return new Range(Pos(pos.line, start), Pos(pos.line, end))\n },\n\n toggleOverwrite: function(value) {\n if (value != null && value == this.state.overwrite) { return }\n if (this.state.overwrite = !this.state.overwrite)\n { addClass(this.display.cursorDiv, \"CodeMirror-overwrite\") }\n else\n { rmClass(this.display.cursorDiv, \"CodeMirror-overwrite\") }\n\n signal(this, \"overwriteToggle\", this, this.state.overwrite)\n },\n hasFocus: function() { return this.display.input.getField() == activeElt() },\n isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },\n\n scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y) }),\n getScrollInfo: function() {\n var scroller = this.display.scroller\n return {left: scroller.scrollLeft, top: scroller.scrollTop,\n height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,\n width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,\n clientHeight: displayHeight(this), clientWidth: displayWidth(this)}\n },\n\n scrollIntoView: methodOp(function(range, margin) {\n if (range == null) {\n range = {from: this.doc.sel.primary().head, to: null}\n if (margin == null) { margin = this.options.cursorScrollMargin }\n } else if (typeof range == \"number\") {\n range = {from: Pos(range, 0), to: null}\n } else if (range.from == null) {\n range = {from: range, to: null}\n }\n if (!range.to) { range.to = range.from }\n range.margin = margin || 0\n\n if (range.from.line != null) {\n scrollToRange(this, range)\n } else {\n scrollToCoordsRange(this, range.from, range.to, range.margin)\n }\n }),\n\n setSize: methodOp(function(width, height) {\n var this$1 = this;\n\n var interpret = function (val) { return typeof val == \"number\" || /^\\d+$/.test(String(val)) ? val + \"px\" : val; }\n if (width != null) { this.display.wrapper.style.width = interpret(width) }\n if (height != null) { this.display.wrapper.style.height = interpret(height) }\n if (this.options.lineWrapping) { clearLineMeasurementCache(this) }\n var lineNo = this.display.viewFrom\n this.doc.iter(lineNo, this.display.viewTo, function (line) {\n if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)\n { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, \"widget\"); break } } }\n ++lineNo\n })\n this.curOp.forceUpdate = true\n signal(this, \"refresh\", this)\n }),\n\n operation: function(f){return runInOp(this, f)},\n startOperation: function(){return startOperation(this)},\n endOperation: function(){return endOperation(this)},\n\n refresh: methodOp(function() {\n var oldHeight = this.display.cachedTextHeight\n regChange(this)\n this.curOp.forceUpdate = true\n clearCaches(this)\n scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop)\n updateGutterSpace(this)\n if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)\n { estimateLineHeights(this) }\n signal(this, \"refresh\", this)\n }),\n\n swapDoc: methodOp(function(doc) {\n var old = this.doc\n old.cm = null\n attachDoc(this, doc)\n clearCaches(this)\n this.display.input.reset()\n scrollToCoords(this, doc.scrollLeft, doc.scrollTop)\n this.curOp.forceScroll = true\n signalLater(this, \"swapDoc\", this, old)\n return old\n }),\n\n getInputField: function(){return this.display.input.getField()},\n getWrapperElement: function(){return this.display.wrapper},\n getScrollerElement: function(){return this.display.scroller},\n getGutterElement: function(){return this.display.gutters}\n }\n eventMixin(CodeMirror)\n\n CodeMirror.registerHelper = function(type, name, value) {\n if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []} }\n helpers[type][name] = value\n }\n CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {\n CodeMirror.registerHelper(type, name, value)\n helpers[type]._global.push({pred: predicate, val: value})\n }\n}\n\n// Used for horizontal relative motion. Dir is -1 or 1 (left or\n// right), unit can be \"char\", \"column\" (like char, but doesn't\n// cross line boundaries), \"word\" (across next word), or \"group\" (to\n// the start of next group of word or non-word-non-whitespace\n// chars). The visually param controls whether, in right-to-left\n// text, direction 1 means to move towards the next index in the\n// string, or towards the character to the right of the current\n// position. The resulting position will have a hitSide=true\n// property if it reached the end of the document.\nfunction findPosH(doc, pos, dir, unit, visually) {\n var oldPos = pos\n var origDir = dir\n var lineObj = getLine(doc, pos.line)\n function findNextLine() {\n var l = pos.line + dir\n if (l < doc.first || l >= doc.first + doc.size) { return false }\n pos = new Pos(l, pos.ch, pos.sticky)\n return lineObj = getLine(doc, l)\n }\n function moveOnce(boundToLine) {\n var next\n if (visually) {\n next = moveVisually(doc.cm, lineObj, pos, dir)\n } else {\n next = moveLogically(lineObj, pos, dir)\n }\n if (next == null) {\n if (!boundToLine && findNextLine())\n { pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir) }\n else\n { return false }\n } else {\n pos = next\n }\n return true\n }\n\n if (unit == \"char\") {\n moveOnce()\n } else if (unit == \"column\") {\n moveOnce(true)\n } else if (unit == \"word\" || unit == \"group\") {\n var sawType = null, group = unit == \"group\"\n var helper = doc.cm && doc.cm.getHelper(pos, \"wordChars\")\n for (var first = true;; first = false) {\n if (dir < 0 && !moveOnce(!first)) { break }\n var cur = lineObj.text.charAt(pos.ch) || \"\\n\"\n var type = isWordChar(cur, helper) ? \"w\"\n : group && cur == \"\\n\" ? \"n\"\n : !group || /\\s/.test(cur) ? null\n : \"p\"\n if (group && !first && !type) { type = \"s\" }\n if (sawType && sawType != type) {\n if (dir < 0) {dir = 1; moveOnce(); pos.sticky = \"after\"}\n break\n }\n\n if (type) { sawType = type }\n if (dir > 0 && !moveOnce(!first)) { break }\n }\n }\n var result = skipAtomic(doc, pos, oldPos, origDir, true)\n if (equalCursorPos(oldPos, result)) { result.hitSide = true }\n return result\n}\n\n// For relative vertical movement. Dir may be -1 or 1. Unit can be\n// \"page\" or \"line\". The resulting position will have a hitSide=true\n// property if it reached the end of the document.\nfunction findPosV(cm, pos, dir, unit) {\n var doc = cm.doc, x = pos.left, y\n if (unit == \"page\") {\n var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight)\n var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3)\n y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount\n\n } else if (unit == \"line\") {\n y = dir > 0 ? pos.bottom + 3 : pos.top - 3\n }\n var target\n for (;;) {\n target = coordsChar(cm, x, y)\n if (!target.outside) { break }\n if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }\n y += dir * 5\n }\n return target\n}\n\n// CONTENTEDITABLE INPUT STYLE\n\nvar ContentEditableInput = function(cm) {\n this.cm = cm\n this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null\n this.polling = new Delayed()\n this.composing = null\n this.gracePeriod = false\n this.readDOMTimeout = null\n};\n\nContentEditableInput.prototype.init = function (display) {\n var this$1 = this;\n\n var input = this, cm = input.cm\n var div = input.div = display.lineDiv\n disableBrowserMagic(div, cm.options.spellcheck)\n\n on(div, \"paste\", function (e) {\n if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }\n // IE doesn't fire input events, so we schedule a read for the pasted content in this way\n if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20) }\n })\n\n on(div, \"compositionstart\", function (e) {\n this$1.composing = {data: e.data, done: false}\n })\n on(div, \"compositionupdate\", function (e) {\n if (!this$1.composing) { this$1.composing = {data: e.data, done: false} }\n })\n on(div, \"compositionend\", function (e) {\n if (this$1.composing) {\n if (e.data != this$1.composing.data) { this$1.readFromDOMSoon() }\n this$1.composing.done = true\n }\n })\n\n on(div, \"touchstart\", function () { return input.forceCompositionEnd(); })\n\n on(div, \"input\", function () {\n if (!this$1.composing) { this$1.readFromDOMSoon() }\n })\n\n function onCopyCut(e) {\n if (signalDOMEvent(cm, e)) { return }\n if (cm.somethingSelected()) {\n setLastCopied({lineWise: false, text: cm.getSelections()})\n if (e.type == \"cut\") { cm.replaceSelection(\"\", null, \"cut\") }\n } else if (!cm.options.lineWiseCopyCut) {\n return\n } else {\n var ranges = copyableRanges(cm)\n setLastCopied({lineWise: true, text: ranges.text})\n if (e.type == \"cut\") {\n cm.operation(function () {\n cm.setSelections(ranges.ranges, 0, sel_dontScroll)\n cm.replaceSelection(\"\", null, \"cut\")\n })\n }\n }\n if (e.clipboardData) {\n e.clipboardData.clearData()\n var content = lastCopied.text.join(\"\\n\")\n // iOS exposes the clipboard API, but seems to discard content inserted into it\n e.clipboardData.setData(\"Text\", content)\n if (e.clipboardData.getData(\"Text\") == content) {\n e.preventDefault()\n return\n }\n }\n // Old-fashioned briefly-focus-a-textarea hack\n var kludge = hiddenTextarea(), te = kludge.firstChild\n cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild)\n te.value = lastCopied.text.join(\"\\n\")\n var hadFocus = document.activeElement\n selectInput(te)\n setTimeout(function () {\n cm.display.lineSpace.removeChild(kludge)\n hadFocus.focus()\n if (hadFocus == div) { input.showPrimarySelection() }\n }, 50)\n }\n on(div, \"copy\", onCopyCut)\n on(div, \"cut\", onCopyCut)\n};\n\nContentEditableInput.prototype.prepareSelection = function () {\n var result = prepareSelection(this.cm, false)\n result.focus = this.cm.state.focused\n return result\n};\n\nContentEditableInput.prototype.showSelection = function (info, takeFocus) {\n if (!info || !this.cm.display.view.length) { return }\n if (info.focus || takeFocus) { this.showPrimarySelection() }\n this.showMultipleSelections(info)\n};\n\nContentEditableInput.prototype.showPrimarySelection = function () {\n var sel = window.getSelection(), cm = this.cm, prim = cm.doc.sel.primary()\n var from = prim.from(), to = prim.to()\n\n if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) {\n sel.removeAllRanges()\n return\n }\n\n var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset)\n var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset)\n if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&\n cmp(minPos(curAnchor, curFocus), from) == 0 &&\n cmp(maxPos(curAnchor, curFocus), to) == 0)\n { return }\n\n var view = cm.display.view\n var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) ||\n {node: view[0].measure.map[2], offset: 0}\n var end = to.line < cm.display.viewTo && posToDOM(cm, to)\n if (!end) {\n var measure = view[view.length - 1].measure\n var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map\n end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]}\n }\n\n if (!start || !end) {\n sel.removeAllRanges()\n return\n }\n\n var old = sel.rangeCount && sel.getRangeAt(0), rng\n try { rng = range(start.node, start.offset, end.offset, end.node) }\n catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible\n if (rng) {\n if (!gecko && cm.state.focused) {\n sel.collapse(start.node, start.offset)\n if (!rng.collapsed) {\n sel.removeAllRanges()\n sel.addRange(rng)\n }\n } else {\n sel.removeAllRanges()\n sel.addRange(rng)\n }\n if (old && sel.anchorNode == null) { sel.addRange(old) }\n else if (gecko) { this.startGracePeriod() }\n }\n this.rememberSelection()\n};\n\nContentEditableInput.prototype.startGracePeriod = function () {\n var this$1 = this;\n\n clearTimeout(this.gracePeriod)\n this.gracePeriod = setTimeout(function () {\n this$1.gracePeriod = false\n if (this$1.selectionChanged())\n { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }) }\n }, 20)\n};\n\nContentEditableInput.prototype.showMultipleSelections = function (info) {\n removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors)\n removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection)\n};\n\nContentEditableInput.prototype.rememberSelection = function () {\n var sel = window.getSelection()\n this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset\n this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset\n};\n\nContentEditableInput.prototype.selectionInEditor = function () {\n var sel = window.getSelection()\n if (!sel.rangeCount) { return false }\n var node = sel.getRangeAt(0).commonAncestorContainer\n return contains(this.div, node)\n};\n\nContentEditableInput.prototype.focus = function () {\n if (this.cm.options.readOnly != \"nocursor\") {\n if (!this.selectionInEditor())\n { this.showSelection(this.prepareSelection(), true) }\n this.div.focus()\n }\n};\nContentEditableInput.prototype.blur = function () { this.div.blur() };\nContentEditableInput.prototype.getField = function () { return this.div };\n\nContentEditableInput.prototype.supportsTouch = function () { return true };\n\nContentEditableInput.prototype.receivedFocus = function () {\n var input = this\n if (this.selectionInEditor())\n { this.pollSelection() }\n else\n { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }) }\n\n function poll() {\n if (input.cm.state.focused) {\n input.pollSelection()\n input.polling.set(input.cm.options.pollInterval, poll)\n }\n }\n this.polling.set(this.cm.options.pollInterval, poll)\n};\n\nContentEditableInput.prototype.selectionChanged = function () {\n var sel = window.getSelection()\n return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||\n sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset\n};\n\nContentEditableInput.prototype.pollSelection = function () {\n if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }\n var sel = window.getSelection(), cm = this.cm\n // On Android Chrome (version 56, at least), backspacing into an\n // uneditable block element will put the cursor in that element,\n // and then, because it's not editable, hide the virtual keyboard.\n // Because Android doesn't allow us to actually detect backspace\n // presses in a sane way, this code checks for when that happens\n // and simulates a backspace press in this case.\n if (android && chrome && this.cm.options.gutters.length && isInGutter(sel.anchorNode)) {\n this.cm.triggerOnKeyDown({type: \"keydown\", keyCode: 8, preventDefault: Math.abs})\n this.blur()\n this.focus()\n return\n }\n if (this.composing) { return }\n this.rememberSelection()\n var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset)\n var head = domToPos(cm, sel.focusNode, sel.focusOffset)\n if (anchor && head) { runInOp(cm, function () {\n setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll)\n if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true }\n }) }\n};\n\nContentEditableInput.prototype.pollContent = function () {\n if (this.readDOMTimeout != null) {\n clearTimeout(this.readDOMTimeout)\n this.readDOMTimeout = null\n }\n\n var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary()\n var from = sel.from(), to = sel.to()\n if (from.ch == 0 && from.line > cm.firstLine())\n { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length) }\n if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())\n { to = Pos(to.line + 1, 0) }\n if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }\n\n var fromIndex, fromLine, fromNode\n if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {\n fromLine = lineNo(display.view[0].line)\n fromNode = display.view[0].node\n } else {\n fromLine = lineNo(display.view[fromIndex].line)\n fromNode = display.view[fromIndex - 1].node.nextSibling\n }\n var toIndex = findViewIndex(cm, to.line)\n var toLine, toNode\n if (toIndex == display.view.length - 1) {\n toLine = display.viewTo - 1\n toNode = display.lineDiv.lastChild\n } else {\n toLine = lineNo(display.view[toIndex + 1].line) - 1\n toNode = display.view[toIndex + 1].node.previousSibling\n }\n\n if (!fromNode) { return false }\n var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine))\n var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length))\n while (newText.length > 1 && oldText.length > 1) {\n if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine-- }\n else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++ }\n else { break }\n }\n\n var cutFront = 0, cutEnd = 0\n var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length)\n while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))\n { ++cutFront }\n var newBot = lst(newText), oldBot = lst(oldText)\n var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),\n oldBot.length - (oldText.length == 1 ? cutFront : 0))\n while (cutEnd < maxCutEnd &&\n newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))\n { ++cutEnd }\n // Try to move start of change to start of selection if ambiguous\n if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {\n while (cutFront && cutFront > from.ch &&\n newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {\n cutFront--\n cutEnd++\n }\n }\n\n newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\\u200b+/, \"\")\n newText[0] = newText[0].slice(cutFront).replace(/\\u200b+$/, \"\")\n\n var chFrom = Pos(fromLine, cutFront)\n var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0)\n if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {\n replaceRange(cm.doc, newText, chFrom, chTo, \"+input\")\n return true\n }\n};\n\nContentEditableInput.prototype.ensurePolled = function () {\n this.forceCompositionEnd()\n};\nContentEditableInput.prototype.reset = function () {\n this.forceCompositionEnd()\n};\nContentEditableInput.prototype.forceCompositionEnd = function () {\n if (!this.composing) { return }\n clearTimeout(this.readDOMTimeout)\n this.composing = null\n this.updateFromDOM()\n this.div.blur()\n this.div.focus()\n};\nContentEditableInput.prototype.readFromDOMSoon = function () {\n var this$1 = this;\n\n if (this.readDOMTimeout != null) { return }\n this.readDOMTimeout = setTimeout(function () {\n this$1.readDOMTimeout = null\n if (this$1.composing) {\n if (this$1.composing.done) { this$1.composing = null }\n else { return }\n }\n this$1.updateFromDOM()\n }, 80)\n};\n\nContentEditableInput.prototype.updateFromDOM = function () {\n var this$1 = this;\n\n if (this.cm.isReadOnly() || !this.pollContent())\n { runInOp(this.cm, function () { return regChange(this$1.cm); }) }\n};\n\nContentEditableInput.prototype.setUneditable = function (node) {\n node.contentEditable = \"false\"\n};\n\nContentEditableInput.prototype.onKeyPress = function (e) {\n if (e.charCode == 0) { return }\n e.preventDefault()\n if (!this.cm.isReadOnly())\n { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0) }\n};\n\nContentEditableInput.prototype.readOnlyChanged = function (val) {\n this.div.contentEditable = String(val != \"nocursor\")\n};\n\nContentEditableInput.prototype.onContextMenu = function () {};\nContentEditableInput.prototype.resetPosition = function () {};\n\nContentEditableInput.prototype.needsContentAttribute = true\n\nfunction posToDOM(cm, pos) {\n var view = findViewForLine(cm, pos.line)\n if (!view || view.hidden) { return null }\n var line = getLine(cm.doc, pos.line)\n var info = mapFromLineView(view, line, pos.line)\n\n var order = getOrder(line, cm.doc.direction), side = \"left\"\n if (order) {\n var partPos = getBidiPartAt(order, pos.ch)\n side = partPos % 2 ? \"right\" : \"left\"\n }\n var result = nodeAndOffsetInLineMap(info.map, pos.ch, side)\n result.offset = result.collapse == \"right\" ? result.end : result.start\n return result\n}\n\nfunction isInGutter(node) {\n for (var scan = node; scan; scan = scan.parentNode)\n { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }\n return false\n}\n\nfunction badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }\n\nfunction domTextBetween(cm, from, to, fromLine, toLine) {\n var text = \"\", closing = false, lineSep = cm.doc.lineSeparator()\n function recognizeMarker(id) { return function (marker) { return marker.id == id; } }\n function close() {\n if (closing) {\n text += lineSep\n closing = false\n }\n }\n function addText(str) {\n if (str) {\n close()\n text += str\n }\n }\n function walk(node) {\n if (node.nodeType == 1) {\n var cmText = node.getAttribute(\"cm-text\")\n if (cmText != null) {\n addText(cmText || node.textContent.replace(/\\u200b/g, \"\"))\n return\n }\n var markerID = node.getAttribute(\"cm-marker\"), range\n if (markerID) {\n var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID))\n if (found.length && (range = found[0].find()))\n { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)) }\n return\n }\n if (node.getAttribute(\"contenteditable\") == \"false\") { return }\n var isBlock = /^(pre|div|p)$/i.test(node.nodeName)\n if (isBlock) { close() }\n for (var i = 0; i < node.childNodes.length; i++)\n { walk(node.childNodes[i]) }\n if (isBlock) { closing = true }\n } else if (node.nodeType == 3) {\n addText(node.nodeValue)\n }\n }\n for (;;) {\n walk(from)\n if (from == to) { break }\n from = from.nextSibling\n }\n return text\n}\n\nfunction domToPos(cm, node, offset) {\n var lineNode\n if (node == cm.display.lineDiv) {\n lineNode = cm.display.lineDiv.childNodes[offset]\n if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }\n node = null; offset = 0\n } else {\n for (lineNode = node;; lineNode = lineNode.parentNode) {\n if (!lineNode || lineNode == cm.display.lineDiv) { return null }\n if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }\n }\n }\n for (var i = 0; i < cm.display.view.length; i++) {\n var lineView = cm.display.view[i]\n if (lineView.node == lineNode)\n { return locateNodeInLineView(lineView, node, offset) }\n }\n}\n\nfunction locateNodeInLineView(lineView, node, offset) {\n var wrapper = lineView.text.firstChild, bad = false\n if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }\n if (node == wrapper) {\n bad = true\n node = wrapper.childNodes[offset]\n offset = 0\n if (!node) {\n var line = lineView.rest ? lst(lineView.rest) : lineView.line\n return badPos(Pos(lineNo(line), line.text.length), bad)\n }\n }\n\n var textNode = node.nodeType == 3 ? node : null, topNode = node\n if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {\n textNode = node.firstChild\n if (offset) { offset = textNode.nodeValue.length }\n }\n while (topNode.parentNode != wrapper) { topNode = topNode.parentNode }\n var measure = lineView.measure, maps = measure.maps\n\n function find(textNode, topNode, offset) {\n for (var i = -1; i < (maps ? maps.length : 0); i++) {\n var map = i < 0 ? measure.map : maps[i]\n for (var j = 0; j < map.length; j += 3) {\n var curNode = map[j + 2]\n if (curNode == textNode || curNode == topNode) {\n var line = lineNo(i < 0 ? lineView.line : lineView.rest[i])\n var ch = map[j] + offset\n if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)] }\n return Pos(line, ch)\n }\n }\n }\n }\n var found = find(textNode, topNode, offset)\n if (found) { return badPos(found, bad) }\n\n // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems\n for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {\n found = find(after, after.firstChild, 0)\n if (found)\n { return badPos(Pos(found.line, found.ch - dist), bad) }\n else\n { dist += after.textContent.length }\n }\n for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {\n found = find(before, before.firstChild, -1)\n if (found)\n { return badPos(Pos(found.line, found.ch + dist$1), bad) }\n else\n { dist$1 += before.textContent.length }\n }\n}\n\n// TEXTAREA INPUT STYLE\n\nvar TextareaInput = function(cm) {\n this.cm = cm\n // See input.poll and input.reset\n this.prevInput = \"\"\n\n // Flag that indicates whether we expect input to appear real soon\n // now (after some event like 'keypress' or 'input') and are\n // polling intensively.\n this.pollingFast = false\n // Self-resetting timeout for the poller\n this.polling = new Delayed()\n // Used to work around IE issue with selection being forgotten when focus moves away from textarea\n this.hasSelection = false\n this.composing = null\n};\n\nTextareaInput.prototype.init = function (display) {\n var this$1 = this;\n\n var input = this, cm = this.cm\n\n // Wraps and hides input textarea\n var div = this.wrapper = hiddenTextarea()\n // The semihidden textarea that is focused when the editor is\n // focused, and receives input.\n var te = this.textarea = div.firstChild\n display.wrapper.insertBefore(div, display.wrapper.firstChild)\n\n // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)\n if (ios) { te.style.width = \"0px\" }\n\n on(te, \"input\", function () {\n if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null }\n input.poll()\n })\n\n on(te, \"paste\", function (e) {\n if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }\n\n cm.state.pasteIncoming = true\n input.fastPoll()\n })\n\n function prepareCopyCut(e) {\n if (signalDOMEvent(cm, e)) { return }\n if (cm.somethingSelected()) {\n setLastCopied({lineWise: false, text: cm.getSelections()})\n } else if (!cm.options.lineWiseCopyCut) {\n return\n } else {\n var ranges = copyableRanges(cm)\n setLastCopied({lineWise: true, text: ranges.text})\n if (e.type == \"cut\") {\n cm.setSelections(ranges.ranges, null, sel_dontScroll)\n } else {\n input.prevInput = \"\"\n te.value = ranges.text.join(\"\\n\")\n selectInput(te)\n }\n }\n if (e.type == \"cut\") { cm.state.cutIncoming = true }\n }\n on(te, \"cut\", prepareCopyCut)\n on(te, \"copy\", prepareCopyCut)\n\n on(display.scroller, \"paste\", function (e) {\n if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }\n cm.state.pasteIncoming = true\n input.focus()\n })\n\n // Prevent normal selection in the editor (we handle our own)\n on(display.lineSpace, \"selectstart\", function (e) {\n if (!eventInWidget(display, e)) { e_preventDefault(e) }\n })\n\n on(te, \"compositionstart\", function () {\n var start = cm.getCursor(\"from\")\n if (input.composing) { input.composing.range.clear() }\n input.composing = {\n start: start,\n range: cm.markText(start, cm.getCursor(\"to\"), {className: \"CodeMirror-composing\"})\n }\n })\n on(te, \"compositionend\", function () {\n if (input.composing) {\n input.poll()\n input.composing.range.clear()\n input.composing = null\n }\n })\n};\n\nTextareaInput.prototype.prepareSelection = function () {\n // Redraw the selection and/or cursor\n var cm = this.cm, display = cm.display, doc = cm.doc\n var result = prepareSelection(cm)\n\n // Move the hidden textarea near the cursor to prevent scrolling artifacts\n if (cm.options.moveInputWithCursor) {\n var headPos = cursorCoords(cm, doc.sel.primary().head, \"div\")\n var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect()\n result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,\n headPos.top + lineOff.top - wrapOff.top))\n result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,\n headPos.left + lineOff.left - wrapOff.left))\n }\n\n return result\n};\n\nTextareaInput.prototype.showSelection = function (drawn) {\n var cm = this.cm, display = cm.display\n removeChildrenAndAdd(display.cursorDiv, drawn.cursors)\n removeChildrenAndAdd(display.selectionDiv, drawn.selection)\n if (drawn.teTop != null) {\n this.wrapper.style.top = drawn.teTop + \"px\"\n this.wrapper.style.left = drawn.teLeft + \"px\"\n }\n};\n\n// Reset the input to correspond to the selection (or to be empty,\n// when not typing and nothing is selected)\nTextareaInput.prototype.reset = function (typing) {\n if (this.contextMenuPending || this.composing) { return }\n var cm = this.cm\n if (cm.somethingSelected()) {\n this.prevInput = \"\"\n var content = cm.getSelection()\n this.textarea.value = content\n if (cm.state.focused) { selectInput(this.textarea) }\n if (ie && ie_version >= 9) { this.hasSelection = content }\n } else if (!typing) {\n this.prevInput = this.textarea.value = \"\"\n if (ie && ie_version >= 9) { this.hasSelection = null }\n }\n};\n\nTextareaInput.prototype.getField = function () { return this.textarea };\n\nTextareaInput.prototype.supportsTouch = function () { return false };\n\nTextareaInput.prototype.focus = function () {\n if (this.cm.options.readOnly != \"nocursor\" && (!mobile || activeElt() != this.textarea)) {\n try { this.textarea.focus() }\n catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM\n }\n};\n\nTextareaInput.prototype.blur = function () { this.textarea.blur() };\n\nTextareaInput.prototype.resetPosition = function () {\n this.wrapper.style.top = this.wrapper.style.left = 0\n};\n\nTextareaInput.prototype.receivedFocus = function () { this.slowPoll() };\n\n// Poll for input changes, using the normal rate of polling. This\n// runs as long as the editor is focused.\nTextareaInput.prototype.slowPoll = function () {\n var this$1 = this;\n\n if (this.pollingFast) { return }\n this.polling.set(this.cm.options.pollInterval, function () {\n this$1.poll()\n if (this$1.cm.state.focused) { this$1.slowPoll() }\n })\n};\n\n// When an event has just come in that is likely to add or change\n// something in the input textarea, we poll faster, to ensure that\n// the change appears on the screen quickly.\nTextareaInput.prototype.fastPoll = function () {\n var missed = false, input = this\n input.pollingFast = true\n function p() {\n var changed = input.poll()\n if (!changed && !missed) {missed = true; input.polling.set(60, p)}\n else {input.pollingFast = false; input.slowPoll()}\n }\n input.polling.set(20, p)\n};\n\n// Read input from the textarea, and update the document to match.\n// When something is selected, it is present in the textarea, and\n// selected (unless it is huge, in which case a placeholder is\n// used). When nothing is selected, the cursor sits after previously\n// seen text (can be empty), which is stored in prevInput (we must\n// not reset the textarea when typing, because that breaks IME).\nTextareaInput.prototype.poll = function () {\n var this$1 = this;\n\n var cm = this.cm, input = this.textarea, prevInput = this.prevInput\n // Since this is called a *lot*, try to bail out as cheaply as\n // possible when it is clear that nothing happened. hasSelection\n // will be the case when there is a lot of text in the textarea,\n // in which case reading its value would be expensive.\n if (this.contextMenuPending || !cm.state.focused ||\n (hasSelection(input) && !prevInput && !this.composing) ||\n cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)\n { return false }\n\n var text = input.value\n // If nothing changed, bail.\n if (text == prevInput && !cm.somethingSelected()) { return false }\n // Work around nonsensical selection resetting in IE9/10, and\n // inexplicable appearance of private area unicode characters on\n // some key combos in Mac (#2689).\n if (ie && ie_version >= 9 && this.hasSelection === text ||\n mac && /[\\uf700-\\uf7ff]/.test(text)) {\n cm.display.input.reset()\n return false\n }\n\n if (cm.doc.sel == cm.display.selForContextMenu) {\n var first = text.charCodeAt(0)\n if (first == 0x200b && !prevInput) { prevInput = \"\\u200b\" }\n if (first == 0x21da) { this.reset(); return this.cm.execCommand(\"undo\") }\n }\n // Find the part of the input that is actually new\n var same = 0, l = Math.min(prevInput.length, text.length)\n while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same }\n\n runInOp(cm, function () {\n applyTextInput(cm, text.slice(same), prevInput.length - same,\n null, this$1.composing ? \"*compose\" : null)\n\n // Don't leave long text in the textarea, since it makes further polling slow\n if (text.length > 1000 || text.indexOf(\"\\n\") > -1) { input.value = this$1.prevInput = \"\" }\n else { this$1.prevInput = text }\n\n if (this$1.composing) {\n this$1.composing.range.clear()\n this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor(\"to\"),\n {className: \"CodeMirror-composing\"})\n }\n })\n return true\n};\n\nTextareaInput.prototype.ensurePolled = function () {\n if (this.pollingFast && this.poll()) { this.pollingFast = false }\n};\n\nTextareaInput.prototype.onKeyPress = function () {\n if (ie && ie_version >= 9) { this.hasSelection = null }\n this.fastPoll()\n};\n\nTextareaInput.prototype.onContextMenu = function (e) {\n var input = this, cm = input.cm, display = cm.display, te = input.textarea\n var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop\n if (!pos || presto) { return } // Opera is difficult.\n\n // Reset the current text selection only if the click is done outside of the selection\n // and 'resetSelectionOnContextMenu' option is true.\n var reset = cm.options.resetSelectionOnContextMenu\n if (reset && cm.doc.sel.contains(pos) == -1)\n { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll) }\n\n var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText\n input.wrapper.style.cssText = \"position: absolute\"\n var wrapperBox = input.wrapper.getBoundingClientRect()\n te.style.cssText = \"position: absolute; width: 30px; height: 30px;\\n top: \" + (e.clientY - wrapperBox.top - 5) + \"px; left: \" + (e.clientX - wrapperBox.left - 5) + \"px;\\n z-index: 1000; background: \" + (ie ? \"rgba(255, 255, 255, .05)\" : \"transparent\") + \";\\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);\"\n var oldScrollY\n if (webkit) { oldScrollY = window.scrollY } // Work around Chrome issue (#2712)\n display.input.focus()\n if (webkit) { window.scrollTo(null, oldScrollY) }\n display.input.reset()\n // Adds \"Select all\" to context menu in FF\n if (!cm.somethingSelected()) { te.value = input.prevInput = \" \" }\n input.contextMenuPending = true\n display.selForContextMenu = cm.doc.sel\n clearTimeout(display.detectingSelectAll)\n\n // Select-all will be greyed out if there's nothing to select, so\n // this adds a zero-width space so that we can later check whether\n // it got selected.\n function prepareSelectAllHack() {\n if (te.selectionStart != null) {\n var selected = cm.somethingSelected()\n var extval = \"\\u200b\" + (selected ? te.value : \"\")\n te.value = \"\\u21da\" // Used to catch context-menu undo\n te.value = extval\n input.prevInput = selected ? \"\" : \"\\u200b\"\n te.selectionStart = 1; te.selectionEnd = extval.length\n // Re-set this, in case some other handler touched the\n // selection in the meantime.\n display.selForContextMenu = cm.doc.sel\n }\n }\n function rehide() {\n input.contextMenuPending = false\n input.wrapper.style.cssText = oldWrapperCSS\n te.style.cssText = oldCSS\n if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos) }\n\n // Try to detect the user choosing select-all\n if (te.selectionStart != null) {\n if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack() }\n var i = 0, poll = function () {\n if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&\n te.selectionEnd > 0 && input.prevInput == \"\\u200b\") {\n operation(cm, selectAll)(cm)\n } else if (i++ < 10) {\n display.detectingSelectAll = setTimeout(poll, 500)\n } else {\n display.selForContextMenu = null\n display.input.reset()\n }\n }\n display.detectingSelectAll = setTimeout(poll, 200)\n }\n }\n\n if (ie && ie_version >= 9) { prepareSelectAllHack() }\n if (captureRightClick) {\n e_stop(e)\n var mouseup = function () {\n off(window, \"mouseup\", mouseup)\n setTimeout(rehide, 20)\n }\n on(window, \"mouseup\", mouseup)\n } else {\n setTimeout(rehide, 50)\n }\n};\n\nTextareaInput.prototype.readOnlyChanged = function (val) {\n if (!val) { this.reset() }\n this.textarea.disabled = val == \"nocursor\"\n};\n\nTextareaInput.prototype.setUneditable = function () {};\n\nTextareaInput.prototype.needsContentAttribute = false\n\nfunction fromTextArea(textarea, options) {\n options = options ? copyObj(options) : {}\n options.value = textarea.value\n if (!options.tabindex && textarea.tabIndex)\n { options.tabindex = textarea.tabIndex }\n if (!options.placeholder && textarea.placeholder)\n { options.placeholder = textarea.placeholder }\n // Set autofocus to true if this textarea is focused, or if it has\n // autofocus and no other element is focused.\n if (options.autofocus == null) {\n var hasFocus = activeElt()\n options.autofocus = hasFocus == textarea ||\n textarea.getAttribute(\"autofocus\") != null && hasFocus == document.body\n }\n\n function save() {textarea.value = cm.getValue()}\n\n var realSubmit\n if (textarea.form) {\n on(textarea.form, \"submit\", save)\n // Deplorable hack to make the submit method do the right thing.\n if (!options.leaveSubmitMethodAlone) {\n var form = textarea.form\n realSubmit = form.submit\n try {\n var wrappedSubmit = form.submit = function () {\n save()\n form.submit = realSubmit\n form.submit()\n form.submit = wrappedSubmit\n }\n } catch(e) {}\n }\n }\n\n options.finishInit = function (cm) {\n cm.save = save\n cm.getTextArea = function () { return textarea; }\n cm.toTextArea = function () {\n cm.toTextArea = isNaN // Prevent this from being ran twice\n save()\n textarea.parentNode.removeChild(cm.getWrapperElement())\n textarea.style.display = \"\"\n if (textarea.form) {\n off(textarea.form, \"submit\", save)\n if (typeof textarea.form.submit == \"function\")\n { textarea.form.submit = realSubmit }\n }\n }\n }\n\n textarea.style.display = \"none\"\n var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },\n options)\n return cm\n}\n\nfunction addLegacyProps(CodeMirror) {\n CodeMirror.off = off\n CodeMirror.on = on\n CodeMirror.wheelEventPixels = wheelEventPixels\n CodeMirror.Doc = Doc\n CodeMirror.splitLines = splitLinesAuto\n CodeMirror.countColumn = countColumn\n CodeMirror.findColumn = findColumn\n CodeMirror.isWordChar = isWordCharBasic\n CodeMirror.Pass = Pass\n CodeMirror.signal = signal\n CodeMirror.Line = Line\n CodeMirror.changeEnd = changeEnd\n CodeMirror.scrollbarModel = scrollbarModel\n CodeMirror.Pos = Pos\n CodeMirror.cmpPos = cmp\n CodeMirror.modes = modes\n CodeMirror.mimeModes = mimeModes\n CodeMirror.resolveMode = resolveMode\n CodeMirror.getMode = getMode\n CodeMirror.modeExtensions = modeExtensions\n CodeMirror.extendMode = extendMode\n CodeMirror.copyState = copyState\n CodeMirror.startState = startState\n CodeMirror.innerMode = innerMode\n CodeMirror.commands = commands\n CodeMirror.keyMap = keyMap\n CodeMirror.keyName = keyName\n CodeMirror.isModifierKey = isModifierKey\n CodeMirror.lookupKey = lookupKey\n CodeMirror.normalizeKeyMap = normalizeKeyMap\n CodeMirror.StringStream = StringStream\n CodeMirror.SharedTextMarker = SharedTextMarker\n CodeMirror.TextMarker = TextMarker\n CodeMirror.LineWidget = LineWidget\n CodeMirror.e_preventDefault = e_preventDefault\n CodeMirror.e_stopPropagation = e_stopPropagation\n CodeMirror.e_stop = e_stop\n CodeMirror.addClass = addClass\n CodeMirror.contains = contains\n CodeMirror.rmClass = rmClass\n CodeMirror.keyNames = keyNames\n}\n\n// EDITOR CONSTRUCTOR\n\ndefineOptions(CodeMirror)\n\naddEditorMethods(CodeMirror)\n\n// Set up methods on CodeMirror's prototype to redirect to the editor's document.\nvar dontDelegate = \"iter insert remove copy getEditor constructor\".split(\" \")\nfor (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)\n { CodeMirror.prototype[prop] = (function(method) {\n return function() {return method.apply(this.doc, arguments)}\n })(Doc.prototype[prop]) } }\n\neventMixin(Doc)\n\n// INPUT HANDLING\n\nCodeMirror.inputStyles = {\"textarea\": TextareaInput, \"contenteditable\": ContentEditableInput}\n\n// MODE DEFINITION AND QUERYING\n\n// Extra arguments are stored as the mode's dependencies, which is\n// used by (legacy) mechanisms like loadmode.js to automatically\n// load a mode. (Preferred mechanism is the require/define calls.)\nCodeMirror.defineMode = function(name/*, mode, …*/) {\n if (!CodeMirror.defaults.mode && name != \"null\") { CodeMirror.defaults.mode = name }\n defineMode.apply(this, arguments)\n}\n\nCodeMirror.defineMIME = defineMIME\n\n// Minimal default mode.\nCodeMirror.defineMode(\"null\", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); })\nCodeMirror.defineMIME(\"text/plain\", \"null\")\n\n// EXTENSIONS\n\nCodeMirror.defineExtension = function (name, func) {\n CodeMirror.prototype[name] = func\n}\nCodeMirror.defineDocExtension = function (name, func) {\n Doc.prototype[name] = func\n}\n\nCodeMirror.fromTextArea = fromTextArea\n\naddLegacyProps(CodeMirror)\n\nCodeMirror.version = \"5.28.1\"\n\nreturn CodeMirror;\n\n})));" }, { "path": "docs/editor/scripts/codes.js", "content": "var CODES = {\n//hello\n\"Hello\" : `/*\nNeche UrduScript likhen.\nCode chalane k liye Run pe click karen.\n*/\n\nlikho(\"Salam, Dunya\")\n`,\n// var\n\"Variable\": `// declare variable\nrakho naam = \"Ali\"\n\n// output to screen\nlikho(naam)\n`,\n\n// foreach\n\"ForEach\": `// variable\nrakho list = [\"Ahmed\", \"Sara\", \"Qasim\"]\n\n// foreach loop. Iterate over 'list' array\nhar list k naam per{\n // output to screen\n likho(naam)\n}\n`,\n\n// if-else\n\"If-Else\": `// declare variable\nrakho naam = \"Asad\"\n\n// if else\nagar (naam){\n likho(\"Salam, \" + naam)\n}\nwarna {\n likho(\"Naam khali hai\")\n}\n`,\n\n// prompt\n\"Prompt/GetLine\": `//prompt: ask for input from user\nrakho naam = pucho(\"Apna naam likhen\")\n\n// if else\nagar (naam){\n likho(\"Salam, \" + naam)\n}\nwarna {\n likho(\"Naam khali hai\")\n}\n`,\n\n// function\n\"Function\": `// function is 'kaam'\nkaam salaam(naam){\n\tagar (naam){\n likho(\"Salam, \" + naam)\n }\n warna {\n likho(\"Naam khali hai\")\n }\n}\n\n// calling function\nsalaam(\"Asad\")\n`,\n\n\"While\": `// declare a variable\nrakho a = 10\n\n// while is 'jabtak'\njabtak( a>0 ){\n\tlikho(a)\n\ta--\n}\n`,\n\"Do-While\":`// ask age until given\nkaro{\n age = pucho(\"Apni age likhen\")\n}\njabtak(!age)\nlikho(\"Apki age \" + age + \" hai\")\n`,\n\"Recursion(Fibonacci)\": `// recursive function\nkaam fibonacci(num) {\n\t// base case\n agar (num <= 1) bhejo 1;\n\t\n\t// recursion\n bhejo fibonacci(num - 1) + fibonacci(num - 2);\n}\n\nlikho(fibonacci(5))\n`\n\n}" }, { "path": "docs/editor/scripts/editor.js", "content": "function replaceAll(find, replace, str) {\n function escapeRegExp(str) {\n return str.replace(/[\\-\\[\\]\\/\\{\\}\\(\\)\\*\\+\\?\\.\\\\\\^\\$\\|]/g, \"\\\\$&\");\n }\n return str.replace(new RegExp(escapeRegExp(find), 'g'), replace);\n}\n\nrequirejs.config({\n shim: {\n 'underscore': {\n exports: '_'\n }\n }\n});\nvar HEADERS;\njQuery.get('scripts/urdujs/keywords.js.txt', function(data) {\n data = replaceAll(\"'lang sweet.js';\", \"\", data)\n data = replaceAll(\"export syntax\", \"syntax\", data)\n HEADERS = data\n});\n\nvar isMac = (typeof navigator !== 'undefined' && navigator.userAgent.indexOf('Mac OS X') != -1)\nif (isMac)\n $(\"#btn-run\").text(\"Run (⌘ + Enter)\")\nelse\n $(\"#btn-run\").text(\"Run (Ctrl + Enter)\")\n\nrequire([\"./sweet\", \"./syntax\"], function(sweet, syn) {\n var storage_code = 'editor_code';\n var storage_mode = 'editor_mode';\n\n var starting_code = CODES[\"Hello\"]\n var compileWithSourcemap = $(\"body\").attr(\"data-sourcemap\") === \"true\";\n CodeMirror.commands.compileCode = function(cm) {\n updateExpand();\n }.bind(this);\n var editor = CodeMirror.fromTextArea($('#editor')[0], {\n lineNumbers: true,\n //smartIndent: true,\n matchBrackets: true,\n indentWithTabs: true,\n tabSize: 2,\n indentUnit:2,\n autofocus: true,\n theme: 'base16-light',\n extraKeys: {\n \"Backspace\": \"delSpaceToPrevTabStop\",\n \"Cmd-Left\":\"goLineLeftSmart\",\n \"Home\":\"goLineLeftSmart\",\n \"Cmd-Enter\":\"compileCode\",\"Ctrl-Enter\":\"compileCode\"\n\n }\n });\n\n var currentStep = 1;\n\n if (window.location.hash) {\n editor.setValue(decodeURI(window.location.hash.slice(1)));\n } else {\n editor.setValue(localStorage[storage_code] ? localStorage[storage_code] : starting_code);\n }\n if(localStorage[storage_mode]) {\n editor.setOption(\"keyMap\", localStorage[storage_mode]);\n }\n\n var output = CodeMirror.fromTextArea($('#output')[0], {\n lineNumbers: true,\n theme: 'base16-light',\n readOnly: true\n });\n\n $('#btn-vim').click(function() {\n editor.setOption('keyMap', 'vim');\n editor.focus();\n localStorage[storage_mode] = \"vim\";\n });\n $('#btn-emacs').click(function() {\n editor.setOption('keyMap', 'emacs');\n editor.focus();\n localStorage[storage_mode] = \"emacs\";\n });\n\n $('#btn-step').click(function() {\n var unparsedString = syn.prettyPrint(\n sweet.expand(editor.getValue(), \n undefined, \n currentStep++),\n $(\"#ck-hygiene\").prop(\"checked\"));\n $(\"#lab-step\").text(currentStep);\n output.setValue(unparsedString); \n });\n\n //populate dropdown with examples\n for (var i in CODES){\n $(\"#drop-examples\").append($(``))\n }\n\n\n $(\"#drop-examples\").change((e)=>{\n editor.setValue( CODES[$(e.target).val()] )\n })\n\n /*\n var updateTimeout;\n editor.on(\"change\", function(e) {\n clearTimeout(updateTimeout);\n updateTimeout = setTimeout(updateExpand, 200);\n });\n */\n\n $(\"#btn-run\").on('click', ()=>{\n updateExpand()\n })\n\n $(\"#btn-reset\").on('click', ()=>{\n delete localStorage.editor_code;\n window.location.hash = \"\";\n window.location.reload()\n })\n\n // override console.log ie. likho\n window.console.LOG = window.console.log;\n window.console.log = function(){\n var args = Array.prototype.slice.call(arguments);\n var str = args.join(\" \")\n output.setValue(output.getValue() + \"\\n\" + str)\n }\n \n\n function updateExpand() {\n \n var code = editor.getValue();\n var expanded, compiled, res;\n window.location = \"#\" + encodeURI(code);\n localStorage[storage_code] = code;\n try {\n //append headers for urduscript\n code = HEADERS + \"\\n\" + code;\n if (compileWithSourcemap) {\n res = sweet.compile(code, {\n sourceMap: true,\n filename: \"test.js\",\n readableNames: true\n });\n } else {\n res = sweet.compile(code, {\n sourceMap: false,\n readableNames: true\n });\n }\n compiled = res.code;\n if ($(\"#chk-transpile\")[0].checked){\n console.log(\"Only Transpile\")\n output.setValue(compiled);\n }\n else{\n output.setValue(\"// Output\")\n eval(compiled)\n /*\n console.log(\"Compiling\")\n output.setValue(\"// Compiling...\");\n var json = {\n language: 4,\n code: compiled,\n stdin:\"\"\n };\n console.log(json);\n $.post(\"https://compile-public-low.remoteinterview.io/compile\", json, function(data, error, xhr) {\n console.log(data);\n if (!data.err){\n output.setValue(data.output + \"\\r\\n\" + data.errors)\n }\n \n\n });\n */\n }\n \n\n $('#errors').text('');\n $('#errors').hide();\n } catch (e) {\n $('#errors').text(e);\n $('#errors').show();\n }\n }\n $('#errors').hide();\n //updateExpand();\n});\n" }, { "path": "docs/editor/scripts/escodegen.js", "content": "// Generated by CommonJS Everywhere 0.8.1\n(function (global) {\n function require(file, parentModule) {\n if ({}.hasOwnProperty.call(require.cache, file))\n return require.cache[file];\n var resolved = require.resolve(file);\n if (!resolved)\n throw new Error('Failed to resolve module ' + file);\n var module$ = {\n id: file,\n require: require,\n filename: file,\n exports: {},\n loaded: false,\n parent: parentModule,\n children: []\n };\n if (parentModule)\n parentModule.children.push(module$);\n var dirname = file.slice(0, file.lastIndexOf('/') + 1);\n require.cache[file] = module$.exports;\n resolved.call(module$.exports, module$, module$.exports, dirname, file);\n module$.loaded = true;\n return require.cache[file] = module$.exports;\n }\n require.modules = {};\n require.cache = {};\n require.resolve = function (file) {\n return {}.hasOwnProperty.call(require.modules, file) ? require.modules[file] : void 0;\n };\n require.define = function (file, fn) {\n require.modules[file] = fn;\n };\n var process = function () {\n var cwd = '/';\n return {\n title: 'browser',\n version: 'v0.10.24',\n browser: true,\n env: {},\n argv: [],\n nextTick: global.setImmediate || function (fn) {\n setTimeout(fn, 0);\n },\n cwd: function () {\n return cwd;\n },\n chdir: function (dir) {\n cwd = dir;\n }\n };\n }();\n require.define('/tools/entry-point.js', function (module, exports, __dirname, __filename) {\n (function () {\n 'use strict';\n global.escodegen = require('/escodegen.js', module);\n escodegen.browser = true;\n }());\n });\n require.define('/escodegen.js', function (module, exports, __dirname, __filename) {\n (function () {\n 'use strict';\n var Syntax, Precedence, BinaryPrecedence, SourceNode, estraverse, esutils, isArray, base, indent, json, renumber, hexadecimal, quotes, escapeless, newline, space, parentheses, semicolons, safeConcatenation, directive, extra, parse, sourceMap, FORMAT_MINIFY, FORMAT_DEFAULTS;\n estraverse = require('/node_modules/estraverse/estraverse.js', module);\n esutils = require('/node_modules/esutils/lib/utils.js', module);\n Syntax = {\n AssignmentExpression: 'AssignmentExpression',\n ArrayExpression: 'ArrayExpression',\n ArrayPattern: 'ArrayPattern',\n ArrowFunctionExpression: 'ArrowFunctionExpression',\n BlockStatement: 'BlockStatement',\n BinaryExpression: 'BinaryExpression',\n BreakStatement: 'BreakStatement',\n CallExpression: 'CallExpression',\n CatchClause: 'CatchClause',\n ComprehensionBlock: 'ComprehensionBlock',\n ComprehensionExpression: 'ComprehensionExpression',\n ConditionalExpression: 'ConditionalExpression',\n ContinueStatement: 'ContinueStatement',\n DirectiveStatement: 'DirectiveStatement',\n DoWhileStatement: 'DoWhileStatement',\n DebuggerStatement: 'DebuggerStatement',\n EmptyStatement: 'EmptyStatement',\n ExportDeclaration: 'ExportDeclaration',\n ExpressionStatement: 'ExpressionStatement',\n ForStatement: 'ForStatement',\n ForInStatement: 'ForInStatement',\n FunctionDeclaration: 'FunctionDeclaration',\n FunctionExpression: 'FunctionExpression',\n GeneratorExpression: 'GeneratorExpression',\n Identifier: 'Identifier',\n IfStatement: 'IfStatement',\n Literal: 'Literal',\n LabeledStatement: 'LabeledStatement',\n LogicalExpression: 'LogicalExpression',\n MemberExpression: 'MemberExpression',\n NewExpression: 'NewExpression',\n ObjectExpression: 'ObjectExpression',\n ObjectPattern: 'ObjectPattern',\n Program: 'Program',\n Property: 'Property',\n ReturnStatement: 'ReturnStatement',\n SequenceExpression: 'SequenceExpression',\n SwitchStatement: 'SwitchStatement',\n SwitchCase: 'SwitchCase',\n ThisExpression: 'ThisExpression',\n ThrowStatement: 'ThrowStatement',\n TryStatement: 'TryStatement',\n UnaryExpression: 'UnaryExpression',\n UpdateExpression: 'UpdateExpression',\n VariableDeclaration: 'VariableDeclaration',\n VariableDeclarator: 'VariableDeclarator',\n WhileStatement: 'WhileStatement',\n WithStatement: 'WithStatement',\n YieldExpression: 'YieldExpression'\n };\n Precedence = {\n Sequence: 0,\n Yield: 1,\n Assignment: 1,\n Conditional: 2,\n ArrowFunction: 2,\n LogicalOR: 3,\n LogicalAND: 4,\n BitwiseOR: 5,\n BitwiseXOR: 6,\n BitwiseAND: 7,\n Equality: 8,\n Relational: 9,\n BitwiseSHIFT: 10,\n Additive: 11,\n Multiplicative: 12,\n Unary: 13,\n Postfix: 14,\n Call: 15,\n New: 16,\n Member: 17,\n Primary: 18\n };\n BinaryPrecedence = {\n '||': Precedence.LogicalOR,\n '&&': Precedence.LogicalAND,\n '|': Precedence.BitwiseOR,\n '^': Precedence.BitwiseXOR,\n '&': Precedence.BitwiseAND,\n '==': Precedence.Equality,\n '!=': Precedence.Equality,\n '===': Precedence.Equality,\n '!==': Precedence.Equality,\n 'is': Precedence.Equality,\n 'isnt': Precedence.Equality,\n '<': Precedence.Relational,\n '>': Precedence.Relational,\n '<=': Precedence.Relational,\n '>=': Precedence.Relational,\n 'in': Precedence.Relational,\n 'instanceof': Precedence.Relational,\n '<<': Precedence.BitwiseSHIFT,\n '>>': Precedence.BitwiseSHIFT,\n '>>>': Precedence.BitwiseSHIFT,\n '+': Precedence.Additive,\n '-': Precedence.Additive,\n '*': Precedence.Multiplicative,\n '%': Precedence.Multiplicative,\n '/': Precedence.Multiplicative\n };\n function getDefaultOptions() {\n return {\n indent: null,\n base: null,\n parse: null,\n comment: false,\n format: {\n indent: {\n style: ' ',\n base: 0,\n adjustMultilineComment: false\n },\n newline: '\\n',\n space: ' ',\n json: false,\n renumber: false,\n hexadecimal: false,\n quotes: 'single',\n escapeless: false,\n compact: false,\n parentheses: true,\n semicolons: true,\n safeConcatenation: false\n },\n moz: {\n comprehensionExpressionStartsWithAssignment: false,\n starlessGenerator: false,\n parenthesizedComprehensionBlock: false\n },\n sourceMap: null,\n sourceMapRoot: null,\n sourceMapWithCode: false,\n directive: false,\n verbatim: null\n };\n }\n function stringRepeat(str, num) {\n var result = '';\n for (num |= 0; num > 0; num >>>= 1, str += str) {\n if (num & 1) {\n result += str;\n }\n }\n return result;\n }\n isArray = Array.isArray;\n if (!isArray) {\n isArray = function isArray(array) {\n return Object.prototype.toString.call(array) === '[object Array]';\n };\n }\n function hasLineTerminator(str) {\n return /[\\r\\n]/g.test(str);\n }\n function endsWithLineTerminator(str) {\n var len = str.length;\n return len && esutils.code.isLineTerminator(str.charCodeAt(len - 1));\n }\n function updateDeeply(target, override) {\n var key, val;\n function isHashObject(target) {\n return typeof target === 'object' && target instanceof Object && !(target instanceof RegExp);\n }\n for (key in override) {\n if (override.hasOwnProperty(key)) {\n val = override[key];\n if (isHashObject(val)) {\n if (isHashObject(target[key])) {\n updateDeeply(target[key], val);\n } else {\n target[key] = updateDeeply({}, val);\n }\n } else {\n target[key] = val;\n }\n }\n }\n return target;\n }\n function generateNumber(value) {\n var result, point, temp, exponent, pos;\n if (value !== value) {\n throw new Error('Numeric literal whose value is NaN');\n }\n if (value < 0 || value === 0 && 1 / value < 0) {\n throw new Error('Numeric literal whose value is negative');\n }\n if (value === 1 / 0) {\n return json ? 'null' : renumber ? '1e400' : '1e+400';\n }\n result = '' + value;\n if (!renumber || result.length < 3) {\n return result;\n }\n point = result.indexOf('.');\n if (!json && result.charCodeAt(0) === 48 && point === 1) {\n point = 0;\n result = result.slice(1);\n }\n temp = result;\n result = result.replace('e+', 'e');\n exponent = 0;\n if ((pos = temp.indexOf('e')) > 0) {\n exponent = +temp.slice(pos + 1);\n temp = temp.slice(0, pos);\n }\n if (point >= 0) {\n exponent -= temp.length - point - 1;\n temp = +(temp.slice(0, point) + temp.slice(point + 1)) + '';\n }\n pos = 0;\n while (temp.charCodeAt(temp.length + pos - 1) === 48) {\n --pos;\n }\n if (pos !== 0) {\n exponent -= pos;\n temp = temp.slice(0, pos);\n }\n if (exponent !== 0) {\n temp += 'e' + exponent;\n }\n if ((temp.length < result.length || hexadecimal && value > 1e12 && Math.floor(value) === value && (temp = '0x' + value.toString(16)).length < result.length) && +temp === value) {\n result = temp;\n }\n return result;\n }\n function escapeRegExpCharacter(ch, previousIsBackslash) {\n if ((ch & ~1) === 8232) {\n return (previousIsBackslash ? 'u' : '\\\\u') + (ch === 8232 ? '2028' : '2029');\n } else if (ch === 10 || ch === 13) {\n return (previousIsBackslash ? '' : '\\\\') + (ch === 10 ? 'n' : 'r');\n }\n return String.fromCharCode(ch);\n }\n function generateRegExp(reg) {\n var match, result, flags, i, iz, ch, characterInBrack, previousIsBackslash;\n result = reg.toString();\n if (reg.source) {\n match = result.match(/\\/([^/]*)$/);\n if (!match) {\n return result;\n }\n flags = match[1];\n result = '';\n characterInBrack = false;\n previousIsBackslash = false;\n for (i = 0, iz = reg.source.length; i < iz; ++i) {\n ch = reg.source.charCodeAt(i);\n if (!previousIsBackslash) {\n if (characterInBrack) {\n if (ch === 93) {\n characterInBrack = false;\n }\n } else {\n if (ch === 47) {\n result += '\\\\';\n } else if (ch === 91) {\n characterInBrack = true;\n }\n }\n result += escapeRegExpCharacter(ch, previousIsBackslash);\n previousIsBackslash = ch === 92;\n } else {\n result += escapeRegExpCharacter(ch, previousIsBackslash);\n previousIsBackslash = false;\n }\n }\n return '/' + result + '/' + flags;\n }\n return result;\n }\n function escapeAllowedCharacter(code, next) {\n var hex, result = '\\\\';\n switch (code) {\n case 8:\n result += 'b';\n break;\n case 12:\n result += 'f';\n break;\n case 9:\n result += 't';\n break;\n default:\n hex = code.toString(16).toUpperCase();\n if (json || code > 255) {\n result += 'u' + '0000'.slice(hex.length) + hex;\n } else if (code === 0 && !esutils.code.isDecimalDigit(next)) {\n result += '0';\n } else if (code === 11) {\n result += 'x0B';\n } else {\n result += 'x' + '00'.slice(hex.length) + hex;\n }\n break;\n }\n return result;\n }\n function escapeDisallowedCharacter(code) {\n var result = '\\\\';\n switch (code) {\n case 92:\n result += '\\\\';\n break;\n case 10:\n result += 'n';\n break;\n case 13:\n result += 'r';\n break;\n case 8232:\n result += 'u2028';\n break;\n case 8233:\n result += 'u2029';\n break;\n default:\n throw new Error('Incorrectly classified character');\n }\n return result;\n }\n function escapeDirective(str) {\n var i, iz, code, quote;\n quote = quotes === 'double' ? '\"' : \"'\";\n for (i = 0, iz = str.length; i < iz; ++i) {\n code = str.charCodeAt(i);\n if (code === 39) {\n quote = '\"';\n break;\n } else if (code === 34) {\n quote = \"'\";\n break;\n } else if (code === 92) {\n ++i;\n }\n }\n return quote + str + quote;\n }\n function escapeString(str) {\n var result = '', i, len, code, singleQuotes = 0, doubleQuotes = 0, single, quote;\n for (i = 0, len = str.length; i < len; ++i) {\n code = str.charCodeAt(i);\n if (code === 39) {\n ++singleQuotes;\n } else if (code === 34) {\n ++doubleQuotes;\n } else if (code === 47 && json) {\n result += '\\\\';\n } else if (esutils.code.isLineTerminator(code) || code === 92) {\n result += escapeDisallowedCharacter(code);\n continue;\n } else if (json && code < 32 || !(json || escapeless || code >= 32 && code <= 126)) {\n result += escapeAllowedCharacter(code, str.charCodeAt(i + 1));\n continue;\n }\n result += String.fromCharCode(code);\n }\n single = !(quotes === 'double' || quotes === 'auto' && doubleQuotes < singleQuotes);\n quote = single ? \"'\" : '\"';\n if (!(single ? singleQuotes : doubleQuotes)) {\n return quote + result + quote;\n }\n str = result;\n result = quote;\n for (i = 0, len = str.length; i < len; ++i) {\n code = str.charCodeAt(i);\n if (code === 39 && single || code === 34 && !single) {\n result += '\\\\';\n }\n result += String.fromCharCode(code);\n }\n return result + quote;\n }\n function flattenToString(arr) {\n var i, iz, elem, result = '';\n for (i = 0, iz = arr.length; i < iz; ++i) {\n elem = arr[i];\n result += isArray(elem) ? flattenToString(elem) : elem;\n }\n return result;\n }\n function toSourceNodeWhenNeeded(generated, node) {\n if (!sourceMap) {\n if (isArray(generated)) {\n return flattenToString(generated);\n } else {\n return generated;\n }\n }\n if (node == null) {\n if (generated instanceof SourceNode) {\n return generated;\n } else {\n node = {};\n }\n }\n if (node.loc == null) {\n return new SourceNode(null, null, sourceMap, generated, node.name || null);\n }\n return new SourceNode(node.loc.start.line, node.loc.start.column, sourceMap === true ? node.loc.source || null : sourceMap, generated, node.name || null);\n }\n function noEmptySpace() {\n return space ? space : ' ';\n }\n function join(left, right) {\n var leftSource = toSourceNodeWhenNeeded(left).toString(), rightSource = toSourceNodeWhenNeeded(right).toString(), leftCharCode = leftSource.charCodeAt(leftSource.length - 1), rightCharCode = rightSource.charCodeAt(0);\n if ((leftCharCode === 43 || leftCharCode === 45) && leftCharCode === rightCharCode || esutils.code.isIdentifierPart(leftCharCode) && esutils.code.isIdentifierPart(rightCharCode) || leftCharCode === 47 && rightCharCode === 105) {\n return [\n left,\n noEmptySpace(),\n right\n ];\n } else if (esutils.code.isWhiteSpace(leftCharCode) || esutils.code.isLineTerminator(leftCharCode) || esutils.code.isWhiteSpace(rightCharCode) || esutils.code.isLineTerminator(rightCharCode)) {\n return [\n left,\n right\n ];\n }\n return [\n left,\n space,\n right\n ];\n }\n function addIndent(stmt) {\n return [\n base,\n stmt\n ];\n }\n function withIndent(fn) {\n var previousBase, result;\n previousBase = base;\n base += indent;\n result = fn.call(this, base);\n base = previousBase;\n return result;\n }\n function calculateSpaces(str) {\n var i;\n for (i = str.length - 1; i >= 0; --i) {\n if (esutils.code.isLineTerminator(str.charCodeAt(i))) {\n break;\n }\n }\n return str.length - 1 - i;\n }\n function adjustMultilineComment(value, specialBase) {\n var array, i, len, line, j, spaces, previousBase, sn;\n array = value.split(/\\r\\n|[\\r\\n]/);\n spaces = Number.MAX_VALUE;\n for (i = 1, len = array.length; i < len; ++i) {\n line = array[i];\n j = 0;\n while (j < line.length && esutils.code.isWhiteSpace(line.charCodeAt(j))) {\n ++j;\n }\n if (spaces > j) {\n spaces = j;\n }\n }\n if (typeof specialBase !== 'undefined') {\n previousBase = base;\n if (array[1][spaces] === '*') {\n specialBase += ' ';\n }\n base = specialBase;\n } else {\n if (spaces & 1) {\n --spaces;\n }\n previousBase = base;\n }\n for (i = 1, len = array.length; i < len; ++i) {\n sn = toSourceNodeWhenNeeded(addIndent(array[i].slice(spaces)));\n array[i] = sourceMap ? sn.join('') : sn;\n }\n base = previousBase;\n return array.join('\\n');\n }\n function generateComment(comment, specialBase) {\n if (comment.type === 'Line') {\n if (endsWithLineTerminator(comment.value)) {\n return '//' + comment.value;\n } else {\n return '//' + comment.value + '\\n';\n }\n }\n if (extra.format.indent.adjustMultilineComment && /[\\n\\r]/.test(comment.value)) {\n return adjustMultilineComment('/*' + comment.value + '*/', specialBase);\n }\n return '/*' + comment.value + '*/';\n }\n function addCommentsToStatement(stmt, result) {\n var i, len, comment, save, tailingToStatement, specialBase, fragment;\n if (stmt.leadingComments && stmt.leadingComments.length > 0) {\n save = result;\n comment = stmt.leadingComments[0];\n result = [];\n if (safeConcatenation && stmt.type === Syntax.Program && stmt.body.length === 0) {\n result.push('\\n');\n }\n result.push(generateComment(comment));\n if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {\n result.push('\\n');\n }\n for (i = 1, len = stmt.leadingComments.length; i < len; ++i) {\n comment = stmt.leadingComments[i];\n fragment = [generateComment(comment)];\n if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {\n fragment.push('\\n');\n }\n result.push(addIndent(fragment));\n }\n result.push(addIndent(save));\n }\n if (stmt.trailingComments) {\n tailingToStatement = !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());\n specialBase = stringRepeat(' ', calculateSpaces(toSourceNodeWhenNeeded([\n base,\n result,\n indent\n ]).toString()));\n for (i = 0, len = stmt.trailingComments.length; i < len; ++i) {\n comment = stmt.trailingComments[i];\n if (tailingToStatement) {\n if (i === 0) {\n result = [\n result,\n indent\n ];\n } else {\n result = [\n result,\n specialBase\n ];\n }\n result.push(generateComment(comment, specialBase));\n } else {\n result = [\n result,\n addIndent(generateComment(comment))\n ];\n }\n if (i !== len - 1 && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {\n result = [\n result,\n '\\n'\n ];\n }\n }\n }\n return result;\n }\n function parenthesize(text, current, should) {\n if (current < should) {\n return [\n '(',\n text,\n ')'\n ];\n }\n return text;\n }\n function maybeBlock(stmt, semicolonOptional, functionBody) {\n var result, noLeadingComment;\n noLeadingComment = !extra.comment || !stmt.leadingComments;\n if (stmt.type === Syntax.BlockStatement && noLeadingComment) {\n return [\n space,\n generateStatement(stmt, { functionBody: functionBody })\n ];\n }\n if (stmt.type === Syntax.EmptyStatement && noLeadingComment) {\n return ';';\n }\n withIndent(function () {\n result = [\n newline,\n addIndent(generateStatement(stmt, {\n semicolonOptional: semicolonOptional,\n functionBody: functionBody\n }))\n ];\n });\n return result;\n }\n function maybeBlockSuffix(stmt, result) {\n var ends = endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());\n if (stmt.type === Syntax.BlockStatement && (!extra.comment || !stmt.leadingComments) && !ends) {\n return [\n result,\n space\n ];\n }\n if (ends) {\n return [\n result,\n base\n ];\n }\n return [\n result,\n newline,\n base\n ];\n }\n function generateVerbatim(expr, option) {\n var i, result;\n result = expr[extra.verbatim].split(/\\r\\n|\\n/);\n for (i = 1; i < result.length; i++) {\n result[i] = newline + base + result[i];\n }\n result = parenthesize(result, Precedence.Sequence, option.precedence);\n return toSourceNodeWhenNeeded(result, expr);\n }\n function generateIdentifier(node) {\n return toSourceNodeWhenNeeded(node.name, node);\n }\n function generatePattern(node, options) {\n var result;\n if (node.type === Syntax.Identifier) {\n result = generateIdentifier(node);\n } else {\n result = generateExpression(node, {\n precedence: options.precedence,\n allowIn: options.allowIn,\n allowCall: true\n });\n }\n return result;\n }\n function generateFunctionBody(node) {\n var result, i, len, expr, arrow;\n arrow = node.type === Syntax.ArrowFunctionExpression;\n if (arrow && node.params.length === 1 && node.params[0].type === Syntax.Identifier) {\n result = [generateIdentifier(node.params[0])];\n } else {\n result = ['('];\n for (i = 0, len = node.params.length; i < len; ++i) {\n result.push(generatePattern(node.params[i], {\n precedence: Precedence.Assignment,\n allowIn: true\n }));\n if (i + 1 < len) {\n result.push(',' + space);\n }\n }\n result.push(')');\n }\n if (arrow) {\n result.push(space, '=>');\n }\n if (node.expression) {\n result.push(space);\n expr = generateExpression(node.body, {\n precedence: Precedence.Assignment,\n allowIn: true,\n allowCall: true\n });\n if (expr.toString().charAt(0) === '{') {\n expr = [\n '(',\n expr,\n ')'\n ];\n }\n result.push(expr);\n } else {\n result.push(maybeBlock(node.body, false, true));\n }\n return result;\n }\n function generateExpression(expr, option) {\n var result, precedence, type, currentPrecedence, i, len, raw, fragment, multiline, leftCharCode, leftSource, rightCharCode, allowIn, allowCall, allowUnparenthesizedNew, property, isGenerator;\n precedence = option.precedence;\n allowIn = option.allowIn;\n allowCall = option.allowCall;\n type = expr.type || option.type;\n if (extra.verbatim && expr.hasOwnProperty(extra.verbatim)) {\n return generateVerbatim(expr, option);\n }\n switch (type) {\n case Syntax.SequenceExpression:\n result = [];\n allowIn |= Precedence.Sequence < precedence;\n for (i = 0, len = expr.expressions.length; i < len; ++i) {\n result.push(generateExpression(expr.expressions[i], {\n precedence: Precedence.Assignment,\n allowIn: allowIn,\n allowCall: true\n }));\n if (i + 1 < len) {\n result.push(',' + space);\n }\n }\n result = parenthesize(result, Precedence.Sequence, precedence);\n break;\n case Syntax.AssignmentExpression:\n allowIn |= Precedence.Assignment < precedence;\n result = parenthesize([\n generateExpression(expr.left, {\n precedence: Precedence.Call,\n allowIn: allowIn,\n allowCall: true\n }),\n space + expr.operator + space,\n generateExpression(expr.right, {\n precedence: Precedence.Assignment,\n allowIn: allowIn,\n allowCall: true\n })\n ], Precedence.Assignment, precedence);\n break;\n case Syntax.ArrowFunctionExpression:\n allowIn |= Precedence.ArrowFunction < precedence;\n result = parenthesize(generateFunctionBody(expr), Precedence.ArrowFunction, precedence);\n break;\n case Syntax.ConditionalExpression:\n allowIn |= Precedence.Conditional < precedence;\n result = parenthesize([\n generateExpression(expr.test, {\n precedence: Precedence.LogicalOR,\n allowIn: allowIn,\n allowCall: true\n }),\n space + '?' + space,\n generateExpression(expr.consequent, {\n precedence: Precedence.Assignment,\n allowIn: allowIn,\n allowCall: true\n }),\n space + ':' + space,\n generateExpression(expr.alternate, {\n precedence: Precedence.Assignment,\n allowIn: allowIn,\n allowCall: true\n })\n ], Precedence.Conditional, precedence);\n break;\n case Syntax.LogicalExpression:\n case Syntax.BinaryExpression:\n currentPrecedence = BinaryPrecedence[expr.operator];\n allowIn |= currentPrecedence < precedence;\n fragment = generateExpression(expr.left, {\n precedence: currentPrecedence,\n allowIn: allowIn,\n allowCall: true\n });\n leftSource = fragment.toString();\n if (leftSource.charCodeAt(leftSource.length - 1) === 47 && esutils.code.isIdentifierPart(expr.operator.charCodeAt(0))) {\n result = [\n fragment,\n noEmptySpace(),\n expr.operator\n ];\n } else {\n result = join(fragment, expr.operator);\n }\n fragment = generateExpression(expr.right, {\n precedence: currentPrecedence + 1,\n allowIn: allowIn,\n allowCall: true\n });\n if (expr.operator === '/' && fragment.toString().charAt(0) === '/' || expr.operator.slice(-1) === '<' && fragment.toString().slice(0, 3) === '!--') {\n result.push(noEmptySpace(), fragment);\n } else {\n result = join(result, fragment);\n }\n if (expr.operator === 'in' && !allowIn) {\n result = [\n '(',\n result,\n ')'\n ];\n } else {\n result = parenthesize(result, currentPrecedence, precedence);\n }\n break;\n case Syntax.CallExpression:\n result = [generateExpression(expr.callee, {\n precedence: Precedence.Call,\n allowIn: true,\n allowCall: true,\n allowUnparenthesizedNew: false\n })];\n result.push('(');\n for (i = 0, len = expr['arguments'].length; i < len; ++i) {\n result.push(generateExpression(expr['arguments'][i], {\n precedence: Precedence.Assignment,\n allowIn: true,\n allowCall: true\n }));\n if (i + 1 < len) {\n result.push(',' + space);\n }\n }\n result.push(')');\n if (!allowCall) {\n result = [\n '(',\n result,\n ')'\n ];\n } else {\n result = parenthesize(result, Precedence.Call, precedence);\n }\n break;\n case Syntax.NewExpression:\n len = expr['arguments'].length;\n allowUnparenthesizedNew = option.allowUnparenthesizedNew === undefined || option.allowUnparenthesizedNew;\n result = join('new', generateExpression(expr.callee, {\n precedence: Precedence.New,\n allowIn: true,\n allowCall: false,\n allowUnparenthesizedNew: allowUnparenthesizedNew && !parentheses && len === 0\n }));\n if (!allowUnparenthesizedNew || parentheses || len > 0) {\n result.push('(');\n for (i = 0; i < len; ++i) {\n result.push(generateExpression(expr['arguments'][i], {\n precedence: Precedence.Assignment,\n allowIn: true,\n allowCall: true\n }));\n if (i + 1 < len) {\n result.push(',' + space);\n }\n }\n result.push(')');\n }\n result = parenthesize(result, Precedence.New, precedence);\n break;\n case Syntax.MemberExpression:\n result = [generateExpression(expr.object, {\n precedence: Precedence.Call,\n allowIn: true,\n allowCall: allowCall,\n allowUnparenthesizedNew: false\n })];\n if (expr.computed) {\n result.push('[', generateExpression(expr.property, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: allowCall\n }), ']');\n } else {\n if (expr.object.type === Syntax.Literal && typeof expr.object.value === 'number') {\n fragment = toSourceNodeWhenNeeded(result).toString();\n if (fragment.indexOf('.') < 0 && !/[eExX]/.test(fragment) && esutils.code.isDecimalDigit(fragment.charCodeAt(fragment.length - 1)) && !(fragment.length >= 2 && fragment.charCodeAt(0) === 48)) {\n result.push('.');\n }\n }\n result.push('.', generateIdentifier(expr.property));\n }\n result = parenthesize(result, Precedence.Member, precedence);\n break;\n case Syntax.UnaryExpression:\n fragment = generateExpression(expr.argument, {\n precedence: Precedence.Unary,\n allowIn: true,\n allowCall: true\n });\n if (space === '') {\n result = join(expr.operator, fragment);\n } else {\n result = [expr.operator];\n if (expr.operator.length > 2) {\n result = join(result, fragment);\n } else {\n leftSource = toSourceNodeWhenNeeded(result).toString();\n leftCharCode = leftSource.charCodeAt(leftSource.length - 1);\n rightCharCode = fragment.toString().charCodeAt(0);\n if ((leftCharCode === 43 || leftCharCode === 45) && leftCharCode === rightCharCode || esutils.code.isIdentifierPart(leftCharCode) && esutils.code.isIdentifierPart(rightCharCode)) {\n result.push(noEmptySpace(), fragment);\n } else {\n result.push(fragment);\n }\n }\n }\n result = parenthesize(result, Precedence.Unary, precedence);\n break;\n case Syntax.YieldExpression:\n if (expr.delegate) {\n result = 'yield*';\n } else {\n result = 'yield';\n }\n if (expr.argument) {\n result = join(result, generateExpression(expr.argument, {\n precedence: Precedence.Yield,\n allowIn: true,\n allowCall: true\n }));\n }\n result = parenthesize(result, Precedence.Yield, precedence);\n break;\n case Syntax.UpdateExpression:\n if (expr.prefix) {\n result = parenthesize([\n expr.operator,\n generateExpression(expr.argument, {\n precedence: Precedence.Unary,\n allowIn: true,\n allowCall: true\n })\n ], Precedence.Unary, precedence);\n } else {\n result = parenthesize([\n generateExpression(expr.argument, {\n precedence: Precedence.Postfix,\n allowIn: true,\n allowCall: true\n }),\n expr.operator\n ], Precedence.Postfix, precedence);\n }\n break;\n case Syntax.FunctionExpression:\n isGenerator = expr.generator && !extra.moz.starlessGenerator;\n result = isGenerator ? 'function*' : 'function';\n if (expr.id) {\n result = [\n result,\n isGenerator ? space : noEmptySpace(),\n generateIdentifier(expr.id),\n generateFunctionBody(expr)\n ];\n } else {\n result = [\n result + space,\n generateFunctionBody(expr)\n ];\n }\n break;\n case Syntax.ArrayPattern:\n case Syntax.ArrayExpression:\n if (!expr.elements.length) {\n result = '[]';\n break;\n }\n multiline = expr.elements.length > 1;\n result = [\n '[',\n multiline ? newline : ''\n ];\n withIndent(function (indent) {\n for (i = 0, len = expr.elements.length; i < len; ++i) {\n if (!expr.elements[i]) {\n if (multiline) {\n result.push(indent);\n }\n if (i + 1 === len) {\n result.push(',');\n }\n } else {\n result.push(multiline ? indent : '', generateExpression(expr.elements[i], {\n precedence: Precedence.Assignment,\n allowIn: true,\n allowCall: true\n }));\n }\n if (i + 1 < len) {\n result.push(',' + (multiline ? newline : space));\n }\n }\n });\n if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {\n result.push(newline);\n }\n result.push(multiline ? base : '', ']');\n break;\n case Syntax.Property:\n if (expr.kind === 'get' || expr.kind === 'set') {\n result = [\n expr.kind,\n noEmptySpace(),\n generateExpression(expr.key, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }),\n generateFunctionBody(expr.value)\n ];\n } else {\n if (expr.shorthand) {\n result = generateExpression(expr.key, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n });\n } else if (expr.method) {\n result = [];\n if (expr.value.generator) {\n result.push('*');\n }\n result.push(generateExpression(expr.key, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }), generateFunctionBody(expr.value));\n } else {\n result = [\n generateExpression(expr.key, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }),\n ':' + space,\n generateExpression(expr.value, {\n precedence: Precedence.Assignment,\n allowIn: true,\n allowCall: true\n })\n ];\n }\n }\n break;\n case Syntax.ObjectExpression:\n if (!expr.properties.length) {\n result = '{}';\n break;\n }\n multiline = expr.properties.length > 1;\n withIndent(function () {\n fragment = generateExpression(expr.properties[0], {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true,\n type: Syntax.Property\n });\n });\n if (!multiline) {\n if (!hasLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {\n result = [\n '{',\n space,\n fragment,\n space,\n '}'\n ];\n break;\n }\n }\n withIndent(function (indent) {\n result = [\n '{',\n newline,\n indent,\n fragment\n ];\n if (multiline) {\n result.push(',' + newline);\n for (i = 1, len = expr.properties.length; i < len; ++i) {\n result.push(indent, generateExpression(expr.properties[i], {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true,\n type: Syntax.Property\n }));\n if (i + 1 < len) {\n result.push(',' + newline);\n }\n }\n }\n });\n if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {\n result.push(newline);\n }\n result.push(base, '}');\n break;\n case Syntax.ObjectPattern:\n if (!expr.properties.length) {\n result = '{}';\n break;\n }\n multiline = false;\n if (expr.properties.length === 1) {\n property = expr.properties[0];\n if (property.value.type !== Syntax.Identifier) {\n multiline = true;\n }\n } else {\n for (i = 0, len = expr.properties.length; i < len; ++i) {\n property = expr.properties[i];\n if (!property.shorthand) {\n multiline = true;\n break;\n }\n }\n }\n result = [\n '{',\n multiline ? newline : ''\n ];\n withIndent(function (indent) {\n for (i = 0, len = expr.properties.length; i < len; ++i) {\n result.push(multiline ? indent : '', generateExpression(expr.properties[i], {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }));\n if (i + 1 < len) {\n result.push(',' + (multiline ? newline : space));\n }\n }\n });\n if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {\n result.push(newline);\n }\n result.push(multiline ? base : '', '}');\n break;\n case Syntax.ThisExpression:\n result = 'this';\n break;\n case Syntax.Identifier:\n result = generateIdentifier(expr);\n break;\n case Syntax.Literal:\n if (expr.hasOwnProperty('raw') && parse) {\n try {\n raw = parse(expr.raw).body[0].expression;\n if (raw.type === Syntax.Literal) {\n if (raw.value === expr.value) {\n result = expr.raw;\n break;\n }\n }\n } catch (e) {\n }\n }\n if (expr.value === null) {\n result = 'null';\n break;\n }\n if (typeof expr.value === 'string') {\n result = escapeString(expr.value);\n break;\n }\n if (typeof expr.value === 'number') {\n result = generateNumber(expr.value);\n break;\n }\n if (typeof expr.value === 'boolean') {\n result = expr.value ? 'true' : 'false';\n break;\n }\n result = generateRegExp(expr.value);\n break;\n case Syntax.GeneratorExpression:\n case Syntax.ComprehensionExpression:\n result = type === Syntax.GeneratorExpression ? ['('] : ['['];\n if (extra.moz.comprehensionExpressionStartsWithAssignment) {\n fragment = generateExpression(expr.body, {\n precedence: Precedence.Assignment,\n allowIn: true,\n allowCall: true\n });\n result.push(fragment);\n }\n if (expr.blocks) {\n withIndent(function () {\n for (i = 0, len = expr.blocks.length; i < len; ++i) {\n fragment = generateExpression(expr.blocks[i], {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n });\n if (i > 0 || extra.moz.comprehensionExpressionStartsWithAssignment) {\n result = join(result, fragment);\n } else {\n result.push(fragment);\n }\n }\n });\n }\n if (expr.filter) {\n result = join(result, 'if' + space);\n fragment = generateExpression(expr.filter, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n });\n if (extra.moz.parenthesizedComprehensionBlock) {\n result = join(result, [\n '(',\n fragment,\n ')'\n ]);\n } else {\n result = join(result, fragment);\n }\n }\n if (!extra.moz.comprehensionExpressionStartsWithAssignment) {\n fragment = generateExpression(expr.body, {\n precedence: Precedence.Assignment,\n allowIn: true,\n allowCall: true\n });\n result = join(result, fragment);\n }\n result.push(type === Syntax.GeneratorExpression ? ')' : ']');\n break;\n case Syntax.ComprehensionBlock:\n if (expr.left.type === Syntax.VariableDeclaration) {\n fragment = [\n expr.left.kind,\n noEmptySpace(),\n generateStatement(expr.left.declarations[0], { allowIn: false })\n ];\n } else {\n fragment = generateExpression(expr.left, {\n precedence: Precedence.Call,\n allowIn: true,\n allowCall: true\n });\n }\n fragment = join(fragment, expr.of ? 'of' : 'in');\n fragment = join(fragment, generateExpression(expr.right, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }));\n if (extra.moz.parenthesizedComprehensionBlock) {\n result = [\n 'for' + space + '(',\n fragment,\n ')'\n ];\n } else {\n result = join('for' + space, fragment);\n }\n break;\n default:\n throw new Error('Unknown expression type: ' + expr.type);\n }\n return toSourceNodeWhenNeeded(result, expr);\n }\n function generateStatement(stmt, option) {\n var i, len, result, node, allowIn, functionBody, directiveContext, fragment, semicolon, isGenerator;\n allowIn = true;\n semicolon = ';';\n functionBody = false;\n directiveContext = false;\n if (option) {\n allowIn = option.allowIn === undefined || option.allowIn;\n if (!semicolons && option.semicolonOptional === true) {\n semicolon = '';\n }\n functionBody = option.functionBody;\n directiveContext = option.directiveContext;\n }\n switch (stmt.type) {\n case Syntax.BlockStatement:\n result = [\n '{',\n newline\n ];\n withIndent(function () {\n for (i = 0, len = stmt.body.length; i < len; ++i) {\n fragment = addIndent(generateStatement(stmt.body[i], {\n semicolonOptional: i === len - 1,\n directiveContext: functionBody\n }));\n result.push(fragment);\n if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {\n result.push(newline);\n }\n }\n });\n result.push(addIndent('}'));\n break;\n case Syntax.BreakStatement:\n if (stmt.label) {\n result = 'break ' + stmt.label.name + semicolon;\n } else {\n result = 'break' + semicolon;\n }\n break;\n case Syntax.ContinueStatement:\n if (stmt.label) {\n result = 'continue ' + stmt.label.name + semicolon;\n } else {\n result = 'continue' + semicolon;\n }\n break;\n case Syntax.DirectiveStatement:\n if (stmt.raw) {\n result = stmt.raw + semicolon;\n } else {\n result = escapeDirective(stmt.directive) + semicolon;\n }\n break;\n case Syntax.DoWhileStatement:\n result = join('do', maybeBlock(stmt.body));\n result = maybeBlockSuffix(stmt.body, result);\n result = join(result, [\n 'while' + space + '(',\n generateExpression(stmt.test, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }),\n ')' + semicolon\n ]);\n break;\n case Syntax.CatchClause:\n withIndent(function () {\n var guard;\n result = [\n 'catch' + space + '(',\n generateExpression(stmt.param, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }),\n ')'\n ];\n if (stmt.guard) {\n guard = generateExpression(stmt.guard, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n });\n result.splice(2, 0, ' if ', guard);\n }\n });\n result.push(maybeBlock(stmt.body));\n break;\n case Syntax.DebuggerStatement:\n result = 'debugger' + semicolon;\n break;\n case Syntax.EmptyStatement:\n result = ';';\n break;\n case Syntax.ExportDeclaration:\n result = 'export ';\n if (stmt.declaration) {\n result = [\n result,\n generateStatement(stmt.declaration, { semicolonOptional: semicolon === '' })\n ];\n break;\n }\n break;\n case Syntax.ExpressionStatement:\n result = [generateExpression(stmt.expression, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n })];\n fragment = toSourceNodeWhenNeeded(result).toString();\n if (fragment.charAt(0) === '{' || fragment.slice(0, 8) === 'function' && '* ('.indexOf(fragment.charAt(8)) >= 0 || directive && directiveContext && stmt.expression.type === Syntax.Literal && typeof stmt.expression.value === 'string') {\n result = [\n '(',\n result,\n ')' + semicolon\n ];\n } else {\n result.push(semicolon);\n }\n break;\n case Syntax.VariableDeclarator:\n if (stmt.init) {\n result = [\n generateExpression(stmt.id, {\n precedence: Precedence.Assignment,\n allowIn: allowIn,\n allowCall: true\n }),\n space,\n '=',\n space,\n generateExpression(stmt.init, {\n precedence: Precedence.Assignment,\n allowIn: allowIn,\n allowCall: true\n })\n ];\n } else {\n result = generatePattern(stmt.id, {\n precedence: Precedence.Assignment,\n allowIn: allowIn\n });\n }\n break;\n case Syntax.VariableDeclaration:\n result = [stmt.kind];\n if (stmt.declarations.length === 1 && stmt.declarations[0].init && stmt.declarations[0].init.type === Syntax.FunctionExpression) {\n result.push(noEmptySpace(), generateStatement(stmt.declarations[0], { allowIn: allowIn }));\n } else {\n withIndent(function () {\n node = stmt.declarations[0];\n if (extra.comment && node.leadingComments) {\n result.push('\\n', addIndent(generateStatement(node, { allowIn: allowIn })));\n } else {\n result.push(noEmptySpace(), generateStatement(node, { allowIn: allowIn }));\n }\n for (i = 1, len = stmt.declarations.length; i < len; ++i) {\n node = stmt.declarations[i];\n if (extra.comment && node.leadingComments) {\n result.push(',' + newline, addIndent(generateStatement(node, { allowIn: allowIn })));\n } else {\n result.push(',' + space, generateStatement(node, { allowIn: allowIn }));\n }\n }\n });\n }\n result.push(semicolon);\n break;\n case Syntax.ThrowStatement:\n result = [\n join('throw', generateExpression(stmt.argument, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n })),\n semicolon\n ];\n break;\n case Syntax.TryStatement:\n result = [\n 'try',\n maybeBlock(stmt.block)\n ];\n result = maybeBlockSuffix(stmt.block, result);\n if (stmt.handlers) {\n for (i = 0, len = stmt.handlers.length; i < len; ++i) {\n result = join(result, generateStatement(stmt.handlers[i]));\n if (stmt.finalizer || i + 1 !== len) {\n result = maybeBlockSuffix(stmt.handlers[i].body, result);\n }\n }\n } else {\n stmt.guardedHandlers = stmt.guardedHandlers || [];\n for (i = 0, len = stmt.guardedHandlers.length; i < len; ++i) {\n result = join(result, generateStatement(stmt.guardedHandlers[i]));\n if (stmt.finalizer || i + 1 !== len) {\n result = maybeBlockSuffix(stmt.guardedHandlers[i].body, result);\n }\n }\n if (stmt.handler) {\n if (isArray(stmt.handler)) {\n for (i = 0, len = stmt.handler.length; i < len; ++i) {\n result = join(result, generateStatement(stmt.handler[i]));\n if (stmt.finalizer || i + 1 !== len) {\n result = maybeBlockSuffix(stmt.handler[i].body, result);\n }\n }\n } else {\n result = join(result, generateStatement(stmt.handler));\n if (stmt.finalizer) {\n result = maybeBlockSuffix(stmt.handler.body, result);\n }\n }\n }\n }\n if (stmt.finalizer) {\n result = join(result, [\n 'finally',\n maybeBlock(stmt.finalizer)\n ]);\n }\n break;\n case Syntax.SwitchStatement:\n withIndent(function () {\n result = [\n 'switch' + space + '(',\n generateExpression(stmt.discriminant, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }),\n ')' + space + '{' + newline\n ];\n });\n if (stmt.cases) {\n for (i = 0, len = stmt.cases.length; i < len; ++i) {\n fragment = addIndent(generateStatement(stmt.cases[i], { semicolonOptional: i === len - 1 }));\n result.push(fragment);\n if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {\n result.push(newline);\n }\n }\n }\n result.push(addIndent('}'));\n break;\n case Syntax.SwitchCase:\n withIndent(function () {\n if (stmt.test) {\n result = [\n join('case', generateExpression(stmt.test, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n })),\n ':'\n ];\n } else {\n result = ['default:'];\n }\n i = 0;\n len = stmt.consequent.length;\n if (len && stmt.consequent[0].type === Syntax.BlockStatement) {\n fragment = maybeBlock(stmt.consequent[0]);\n result.push(fragment);\n i = 1;\n }\n if (i !== len && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {\n result.push(newline);\n }\n for (; i < len; ++i) {\n fragment = addIndent(generateStatement(stmt.consequent[i], { semicolonOptional: i === len - 1 && semicolon === '' }));\n result.push(fragment);\n if (i + 1 !== len && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {\n result.push(newline);\n }\n }\n });\n break;\n case Syntax.IfStatement:\n withIndent(function () {\n result = [\n 'if' + space + '(',\n generateExpression(stmt.test, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }),\n ')'\n ];\n });\n if (stmt.alternate) {\n result.push(maybeBlock(stmt.consequent));\n result = maybeBlockSuffix(stmt.consequent, result);\n if (stmt.alternate.type === Syntax.IfStatement) {\n result = join(result, [\n 'else ',\n generateStatement(stmt.alternate, { semicolonOptional: semicolon === '' })\n ]);\n } else {\n result = join(result, join('else', maybeBlock(stmt.alternate, semicolon === '')));\n }\n } else {\n result.push(maybeBlock(stmt.consequent, semicolon === ''));\n }\n break;\n case Syntax.ForStatement:\n withIndent(function () {\n result = ['for' + space + '('];\n if (stmt.init) {\n if (stmt.init.type === Syntax.VariableDeclaration) {\n result.push(generateStatement(stmt.init, { allowIn: false }));\n } else {\n result.push(generateExpression(stmt.init, {\n precedence: Precedence.Sequence,\n allowIn: false,\n allowCall: true\n }), ';');\n }\n } else {\n result.push(';');\n }\n if (stmt.test) {\n result.push(space, generateExpression(stmt.test, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }), ';');\n } else {\n result.push(';');\n }\n if (stmt.update) {\n result.push(space, generateExpression(stmt.update, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }), ')');\n } else {\n result.push(')');\n }\n });\n result.push(maybeBlock(stmt.body, semicolon === ''));\n break;\n case Syntax.ForInStatement:\n result = ['for' + space + '('];\n withIndent(function () {\n if (stmt.left.type === Syntax.VariableDeclaration) {\n withIndent(function () {\n result.push(stmt.left.kind + noEmptySpace(), generateStatement(stmt.left.declarations[0], { allowIn: false }));\n });\n } else {\n result.push(generateExpression(stmt.left, {\n precedence: Precedence.Call,\n allowIn: true,\n allowCall: true\n }));\n }\n result = join(result, 'in');\n result = [\n join(result, generateExpression(stmt.right, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n })),\n ')'\n ];\n });\n result.push(maybeBlock(stmt.body, semicolon === ''));\n break;\n case Syntax.LabeledStatement:\n result = [\n stmt.label.name + ':',\n maybeBlock(stmt.body, semicolon === '')\n ];\n break;\n case Syntax.Program:\n len = stmt.body.length;\n result = [safeConcatenation && len > 0 ? '\\n' : ''];\n for (i = 0; i < len; ++i) {\n fragment = addIndent(generateStatement(stmt.body[i], {\n semicolonOptional: !safeConcatenation && i === len - 1,\n directiveContext: true\n }));\n result.push(fragment);\n if (i + 1 < len && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {\n result.push(newline);\n }\n }\n break;\n case Syntax.FunctionDeclaration:\n isGenerator = stmt.generator && !extra.moz.starlessGenerator;\n result = [\n isGenerator ? 'function*' : 'function',\n isGenerator ? space : noEmptySpace(),\n generateIdentifier(stmt.id),\n generateFunctionBody(stmt)\n ];\n break;\n case Syntax.ReturnStatement:\n if (stmt.argument) {\n result = [\n join('return', generateExpression(stmt.argument, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n })),\n semicolon\n ];\n } else {\n result = ['return' + semicolon];\n }\n break;\n case Syntax.WhileStatement:\n withIndent(function () {\n result = [\n 'while' + space + '(',\n generateExpression(stmt.test, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }),\n ')'\n ];\n });\n result.push(maybeBlock(stmt.body, semicolon === ''));\n break;\n case Syntax.WithStatement:\n withIndent(function () {\n result = [\n 'with' + space + '(',\n generateExpression(stmt.object, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n }),\n ')'\n ];\n });\n result.push(maybeBlock(stmt.body, semicolon === ''));\n break;\n default:\n throw new Error('Unknown statement type: ' + stmt.type);\n }\n if (extra.comment) {\n result = addCommentsToStatement(stmt, result);\n }\n fragment = toSourceNodeWhenNeeded(result).toString();\n if (stmt.type === Syntax.Program && !safeConcatenation && newline === '' && fragment.charAt(fragment.length - 1) === '\\n') {\n result = sourceMap ? toSourceNodeWhenNeeded(result).replaceRight(/\\s+$/, '') : fragment.replace(/\\s+$/, '');\n }\n return toSourceNodeWhenNeeded(result, stmt);\n }\n function generate(node, options) {\n var defaultOptions = getDefaultOptions(), result, pair;\n if (options != null) {\n if (typeof options.indent === 'string') {\n defaultOptions.format.indent.style = options.indent;\n }\n if (typeof options.base === 'number') {\n defaultOptions.format.indent.base = options.base;\n }\n options = updateDeeply(defaultOptions, options);\n indent = options.format.indent.style;\n if (typeof options.base === 'string') {\n base = options.base;\n } else {\n base = stringRepeat(indent, options.format.indent.base);\n }\n } else {\n options = defaultOptions;\n indent = options.format.indent.style;\n base = stringRepeat(indent, options.format.indent.base);\n }\n json = options.format.json;\n renumber = options.format.renumber;\n hexadecimal = json ? false : options.format.hexadecimal;\n quotes = json ? 'double' : options.format.quotes;\n escapeless = options.format.escapeless;\n newline = options.format.newline;\n space = options.format.space;\n if (options.format.compact) {\n newline = space = indent = base = '';\n }\n parentheses = options.format.parentheses;\n semicolons = options.format.semicolons;\n safeConcatenation = options.format.safeConcatenation;\n directive = options.directive;\n parse = json ? null : options.parse;\n sourceMap = options.sourceMap;\n extra = options;\n if (sourceMap) {\n if (!exports.browser) {\n SourceNode = require('/node_modules/source-map/lib/source-map.js', module).SourceNode;\n } else {\n SourceNode = global.sourceMap.SourceNode;\n }\n }\n switch (node.type) {\n case Syntax.BlockStatement:\n case Syntax.BreakStatement:\n case Syntax.CatchClause:\n case Syntax.ContinueStatement:\n case Syntax.DirectiveStatement:\n case Syntax.DoWhileStatement:\n case Syntax.DebuggerStatement:\n case Syntax.EmptyStatement:\n case Syntax.ExpressionStatement:\n case Syntax.ForStatement:\n case Syntax.ForInStatement:\n case Syntax.FunctionDeclaration:\n case Syntax.IfStatement:\n case Syntax.LabeledStatement:\n case Syntax.Program:\n case Syntax.ReturnStatement:\n case Syntax.SwitchStatement:\n case Syntax.SwitchCase:\n case Syntax.ThrowStatement:\n case Syntax.TryStatement:\n case Syntax.VariableDeclaration:\n case Syntax.VariableDeclarator:\n case Syntax.WhileStatement:\n case Syntax.WithStatement:\n result = generateStatement(node);\n break;\n case Syntax.AssignmentExpression:\n case Syntax.ArrayExpression:\n case Syntax.ArrayPattern:\n case Syntax.BinaryExpression:\n case Syntax.CallExpression:\n case Syntax.ConditionalExpression:\n case Syntax.FunctionExpression:\n case Syntax.Identifier:\n case Syntax.Literal:\n case Syntax.LogicalExpression:\n case Syntax.MemberExpression:\n case Syntax.NewExpression:\n case Syntax.ObjectExpression:\n case Syntax.ObjectPattern:\n case Syntax.Property:\n case Syntax.SequenceExpression:\n case Syntax.ThisExpression:\n case Syntax.UnaryExpression:\n case Syntax.UpdateExpression:\n case Syntax.YieldExpression:\n result = generateExpression(node, {\n precedence: Precedence.Sequence,\n allowIn: true,\n allowCall: true\n });\n break;\n default:\n throw new Error('Unknown node type: ' + node.type);\n }\n if (!sourceMap) {\n return result.toString();\n }\n pair = result.toStringWithSourceMap({\n file: options.file,\n sourceRoot: options.sourceMapRoot\n });\n if (options.sourceContent) {\n pair.map.setSourceContent(options.sourceMap, options.sourceContent);\n }\n if (options.sourceMapWithCode) {\n return pair;\n }\n return pair.map.toString();\n }\n FORMAT_MINIFY = {\n indent: {\n style: '',\n base: 0\n },\n renumber: true,\n hexadecimal: true,\n quotes: 'auto',\n escapeless: true,\n compact: true,\n parentheses: false,\n semicolons: false\n };\n FORMAT_DEFAULTS = getDefaultOptions().format;\n exports.version = require('/package.json', module).version;\n exports.generate = generate;\n exports.attachComments = estraverse.attachComments;\n exports.browser = false;\n exports.FORMAT_MINIFY = FORMAT_MINIFY;\n exports.FORMAT_DEFAULTS = FORMAT_DEFAULTS;\n }());\n });\n require.define('/package.json', function (module, exports, __dirname, __filename) {\n module.exports = {\n 'name': 'escodegen',\n 'description': 'ECMAScript code generator',\n 'homepage': 'http://github.com/Constellation/escodegen',\n 'main': 'escodegen.js',\n 'bin': {\n 'esgenerate': './bin/esgenerate.js',\n 'escodegen': './bin/escodegen.js'\n },\n 'version': '1.1.0-dev',\n 'engines': { 'node': '>=0.4.0' },\n 'maintainers': [{\n 'name': 'Yusuke Suzuki',\n 'email': 'utatane.tea@gmail.com',\n 'web': 'http://github.com/Constellation'\n }],\n 'repository': {\n 'type': 'git',\n 'url': 'http://github.com/Constellation/escodegen.git'\n },\n 'dependencies': {\n 'esprima': '~1.0.4',\n 'estraverse': '~1.5.0',\n 'esutils': '~1.0.0'\n },\n 'optionalDependencies': { 'source-map': '~0.1.30' },\n 'devDependencies': {\n 'esprima-moz': '*',\n 'commonjs-everywhere': '~0.8.0',\n 'q': '*',\n 'bower': '*',\n 'semver': '*',\n 'chai': '~1.7.2',\n 'grunt-contrib-jshint': '~0.5.0',\n 'grunt-cli': '~0.1.9',\n 'grunt': '~0.4.1',\n 'grunt-mocha-test': '~0.6.2'\n },\n 'licenses': [{\n 'type': 'BSD',\n 'url': 'http://github.com/Constellation/escodegen/raw/master/LICENSE.BSD'\n }],\n 'scripts': {\n 'test': 'grunt travis',\n 'unit-test': 'grunt test',\n 'lint': 'grunt lint',\n 'release': 'node tools/release.js',\n 'build-min': './node_modules/.bin/cjsify -ma path: tools/entry-point.js > escodegen.browser.min.js',\n 'build': './node_modules/.bin/cjsify -a path: tools/entry-point.js > escodegen.browser.js'\n }\n };\n });\n require.define('/node_modules/source-map/lib/source-map.js', function (module, exports, __dirname, __filename) {\n exports.SourceMapGenerator = require('/node_modules/source-map/lib/source-map/source-map-generator.js', module).SourceMapGenerator;\n exports.SourceMapConsumer = require('/node_modules/source-map/lib/source-map/source-map-consumer.js', module).SourceMapConsumer;\n exports.SourceNode = require('/node_modules/source-map/lib/source-map/source-node.js', module).SourceNode;\n });\n require.define('/node_modules/source-map/lib/source-map/source-node.js', function (module, exports, __dirname, __filename) {\n if (typeof define !== 'function') {\n var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);\n }\n define(function (require, exports, module) {\n var SourceMapGenerator = require('/node_modules/source-map/lib/source-map/source-map-generator.js', module).SourceMapGenerator;\n var util = require('/node_modules/source-map/lib/source-map/util.js', module);\n function SourceNode(aLine, aColumn, aSource, aChunks, aName) {\n this.children = [];\n this.sourceContents = {};\n this.line = aLine === undefined ? null : aLine;\n this.column = aColumn === undefined ? null : aColumn;\n this.source = aSource === undefined ? null : aSource;\n this.name = aName === undefined ? null : aName;\n if (aChunks != null)\n this.add(aChunks);\n }\n SourceNode.fromStringWithSourceMap = function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) {\n var node = new SourceNode;\n var remainingLines = aGeneratedCode.split('\\n');\n var lastGeneratedLine = 1, lastGeneratedColumn = 0;\n var lastMapping = null;\n aSourceMapConsumer.eachMapping(function (mapping) {\n if (lastMapping === null) {\n while (lastGeneratedLine < mapping.generatedLine) {\n node.add(remainingLines.shift() + '\\n');\n lastGeneratedLine++;\n }\n if (lastGeneratedColumn < mapping.generatedColumn) {\n var nextLine = remainingLines[0];\n node.add(nextLine.substr(0, mapping.generatedColumn));\n remainingLines[0] = nextLine.substr(mapping.generatedColumn);\n lastGeneratedColumn = mapping.generatedColumn;\n }\n } else {\n if (lastGeneratedLine < mapping.generatedLine) {\n var code = '';\n do {\n code += remainingLines.shift() + '\\n';\n lastGeneratedLine++;\n lastGeneratedColumn = 0;\n } while (lastGeneratedLine < mapping.generatedLine);\n if (lastGeneratedColumn < mapping.generatedColumn) {\n var nextLine = remainingLines[0];\n code += nextLine.substr(0, mapping.generatedColumn);\n remainingLines[0] = nextLine.substr(mapping.generatedColumn);\n lastGeneratedColumn = mapping.generatedColumn;\n }\n addMappingWithCode(lastMapping, code);\n } else {\n var nextLine = remainingLines[0];\n var code = nextLine.substr(0, mapping.generatedColumn - lastGeneratedColumn);\n remainingLines[0] = nextLine.substr(mapping.generatedColumn - lastGeneratedColumn);\n lastGeneratedColumn = mapping.generatedColumn;\n addMappingWithCode(lastMapping, code);\n }\n }\n lastMapping = mapping;\n }, this);\n addMappingWithCode(lastMapping, remainingLines.join('\\n'));\n aSourceMapConsumer.sources.forEach(function (sourceFile) {\n var content = aSourceMapConsumer.sourceContentFor(sourceFile);\n if (content) {\n node.setSourceContent(sourceFile, content);\n }\n });\n return node;\n function addMappingWithCode(mapping, code) {\n if (mapping === null || mapping.source === undefined) {\n node.add(code);\n } else {\n node.add(new SourceNode(mapping.originalLine, mapping.originalColumn, mapping.source, code, mapping.name));\n }\n }\n };\n SourceNode.prototype.add = function SourceNode_add(aChunk) {\n if (Array.isArray(aChunk)) {\n aChunk.forEach(function (chunk) {\n this.add(chunk);\n }, this);\n } else if (aChunk instanceof SourceNode || typeof aChunk === 'string') {\n if (aChunk) {\n this.children.push(aChunk);\n }\n } else {\n throw new TypeError('Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' + aChunk);\n }\n return this;\n };\n SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {\n if (Array.isArray(aChunk)) {\n for (var i = aChunk.length - 1; i >= 0; i--) {\n this.prepend(aChunk[i]);\n }\n } else if (aChunk instanceof SourceNode || typeof aChunk === 'string') {\n this.children.unshift(aChunk);\n } else {\n throw new TypeError('Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' + aChunk);\n }\n return this;\n };\n SourceNode.prototype.walk = function SourceNode_walk(aFn) {\n var chunk;\n for (var i = 0, len = this.children.length; i < len; i++) {\n chunk = this.children[i];\n if (chunk instanceof SourceNode) {\n chunk.walk(aFn);\n } else {\n if (chunk !== '') {\n aFn(chunk, {\n source: this.source,\n line: this.line,\n column: this.column,\n name: this.name\n });\n }\n }\n }\n };\n SourceNode.prototype.join = function SourceNode_join(aSep) {\n var newChildren;\n var i;\n var len = this.children.length;\n if (len > 0) {\n newChildren = [];\n for (i = 0; i < len - 1; i++) {\n newChildren.push(this.children[i]);\n newChildren.push(aSep);\n }\n newChildren.push(this.children[i]);\n this.children = newChildren;\n }\n return this;\n };\n SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {\n var lastChild = this.children[this.children.length - 1];\n if (lastChild instanceof SourceNode) {\n lastChild.replaceRight(aPattern, aReplacement);\n } else if (typeof lastChild === 'string') {\n this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);\n } else {\n this.children.push(''.replace(aPattern, aReplacement));\n }\n return this;\n };\n SourceNode.prototype.setSourceContent = function SourceNode_setSourceContent(aSourceFile, aSourceContent) {\n this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;\n };\n SourceNode.prototype.walkSourceContents = function SourceNode_walkSourceContents(aFn) {\n for (var i = 0, len = this.children.length; i < len; i++) {\n if (this.children[i] instanceof SourceNode) {\n this.children[i].walkSourceContents(aFn);\n }\n }\n var sources = Object.keys(this.sourceContents);\n for (var i = 0, len = sources.length; i < len; i++) {\n aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);\n }\n };\n SourceNode.prototype.toString = function SourceNode_toString() {\n var str = '';\n this.walk(function (chunk) {\n str += chunk;\n });\n return str;\n };\n SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {\n var generated = {\n code: '',\n line: 1,\n column: 0\n };\n var map = new SourceMapGenerator(aArgs);\n var sourceMappingActive = false;\n var lastOriginalSource = null;\n var lastOriginalLine = null;\n var lastOriginalColumn = null;\n var lastOriginalName = null;\n this.walk(function (chunk, original) {\n generated.code += chunk;\n if (original.source !== null && original.line !== null && original.column !== null) {\n if (lastOriginalSource !== original.source || lastOriginalLine !== original.line || lastOriginalColumn !== original.column || lastOriginalName !== original.name) {\n map.addMapping({\n source: original.source,\n original: {\n line: original.line,\n column: original.column\n },\n generated: {\n line: generated.line,\n column: generated.column\n },\n name: original.name\n });\n }\n lastOriginalSource = original.source;\n lastOriginalLine = original.line;\n lastOriginalColumn = original.column;\n lastOriginalName = original.name;\n sourceMappingActive = true;\n } else if (sourceMappingActive) {\n map.addMapping({\n generated: {\n line: generated.line,\n column: generated.column\n }\n });\n lastOriginalSource = null;\n sourceMappingActive = false;\n }\n chunk.split('').forEach(function (ch) {\n if (ch === '\\n') {\n generated.line++;\n generated.column = 0;\n } else {\n generated.column++;\n }\n });\n });\n this.walkSourceContents(function (sourceFile, sourceContent) {\n map.setSourceContent(sourceFile, sourceContent);\n });\n return {\n code: generated.code,\n map: map\n };\n };\n exports.SourceNode = SourceNode;\n });\n });\n require.define('/node_modules/source-map/lib/source-map/util.js', function (module, exports, __dirname, __filename) {\n if (typeof define !== 'function') {\n var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);\n }\n define(function (require, exports, module) {\n function getArg(aArgs, aName, aDefaultValue) {\n if (aName in aArgs) {\n return aArgs[aName];\n } else if (arguments.length === 3) {\n return aDefaultValue;\n } else {\n throw new Error('\"' + aName + '\" is a required argument.');\n }\n }\n exports.getArg = getArg;\n var urlRegexp = /([\\w+\\-.]+):\\/\\/((\\w+:\\w+)@)?([\\w.]+)?(:(\\d+))?(\\S+)?/;\n var dataUrlRegexp = /^data:.+\\,.+/;\n function urlParse(aUrl) {\n var match = aUrl.match(urlRegexp);\n if (!match) {\n return null;\n }\n return {\n scheme: match[1],\n auth: match[3],\n host: match[4],\n port: match[6],\n path: match[7]\n };\n }\n exports.urlParse = urlParse;\n function urlGenerate(aParsedUrl) {\n var url = aParsedUrl.scheme + '://';\n if (aParsedUrl.auth) {\n url += aParsedUrl.auth + '@';\n }\n if (aParsedUrl.host) {\n url += aParsedUrl.host;\n }\n if (aParsedUrl.port) {\n url += ':' + aParsedUrl.port;\n }\n if (aParsedUrl.path) {\n url += aParsedUrl.path;\n }\n return url;\n }\n exports.urlGenerate = urlGenerate;\n function join(aRoot, aPath) {\n var url;\n if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) {\n return aPath;\n }\n if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) {\n url.path = aPath;\n return urlGenerate(url);\n }\n return aRoot.replace(/\\/$/, '') + '/' + aPath;\n }\n exports.join = join;\n function toSetString(aStr) {\n return '$' + aStr;\n }\n exports.toSetString = toSetString;\n function fromSetString(aStr) {\n return aStr.substr(1);\n }\n exports.fromSetString = fromSetString;\n function relative(aRoot, aPath) {\n aRoot = aRoot.replace(/\\/$/, '');\n var url = urlParse(aRoot);\n if (aPath.charAt(0) == '/' && url && url.path == '/') {\n return aPath.slice(1);\n }\n return aPath.indexOf(aRoot + '/') === 0 ? aPath.substr(aRoot.length + 1) : aPath;\n }\n exports.relative = relative;\n function strcmp(aStr1, aStr2) {\n var s1 = aStr1 || '';\n var s2 = aStr2 || '';\n return (s1 > s2) - (s1 < s2);\n }\n function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {\n var cmp;\n cmp = strcmp(mappingA.source, mappingB.source);\n if (cmp) {\n return cmp;\n }\n cmp = mappingA.originalLine - mappingB.originalLine;\n if (cmp) {\n return cmp;\n }\n cmp = mappingA.originalColumn - mappingB.originalColumn;\n if (cmp || onlyCompareOriginal) {\n return cmp;\n }\n cmp = strcmp(mappingA.name, mappingB.name);\n if (cmp) {\n return cmp;\n }\n cmp = mappingA.generatedLine - mappingB.generatedLine;\n if (cmp) {\n return cmp;\n }\n return mappingA.generatedColumn - mappingB.generatedColumn;\n }\n ;\n exports.compareByOriginalPositions = compareByOriginalPositions;\n function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) {\n var cmp;\n cmp = mappingA.generatedLine - mappingB.generatedLine;\n if (cmp) {\n return cmp;\n }\n cmp = mappingA.generatedColumn - mappingB.generatedColumn;\n if (cmp || onlyCompareGenerated) {\n return cmp;\n }\n cmp = strcmp(mappingA.source, mappingB.source);\n if (cmp) {\n return cmp;\n }\n cmp = mappingA.originalLine - mappingB.originalLine;\n if (cmp) {\n return cmp;\n }\n cmp = mappingA.originalColumn - mappingB.originalColumn;\n if (cmp) {\n return cmp;\n }\n return strcmp(mappingA.name, mappingB.name);\n }\n ;\n exports.compareByGeneratedPositions = compareByGeneratedPositions;\n });\n });\n require.define('/node_modules/source-map/node_modules/amdefine/amdefine.js', function (module, exports, __dirname, __filename) {\n 'use strict';\n function amdefine(module, requireFn) {\n 'use strict';\n var defineCache = {}, loaderCache = {}, alreadyCalled = false, path = require('path', module), makeRequire, stringRequire;\n function trimDots(ary) {\n var i, part;\n for (i = 0; ary[i]; i += 1) {\n part = ary[i];\n if (part === '.') {\n ary.splice(i, 1);\n i -= 1;\n } else if (part === '..') {\n if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {\n break;\n } else if (i > 0) {\n ary.splice(i - 1, 2);\n i -= 2;\n }\n }\n }\n }\n function normalize(name, baseName) {\n var baseParts;\n if (name && name.charAt(0) === '.') {\n if (baseName) {\n baseParts = baseName.split('/');\n baseParts = baseParts.slice(0, baseParts.length - 1);\n baseParts = baseParts.concat(name.split('/'));\n trimDots(baseParts);\n name = baseParts.join('/');\n }\n }\n return name;\n }\n function makeNormalize(relName) {\n return function (name) {\n return normalize(name, relName);\n };\n }\n function makeLoad(id) {\n function load(value) {\n loaderCache[id] = value;\n }\n load.fromText = function (id, text) {\n throw new Error('amdefine does not implement load.fromText');\n };\n return load;\n }\n makeRequire = function (systemRequire, exports, module, relId) {\n function amdRequire(deps, callback) {\n if (typeof deps === 'string') {\n return stringRequire(systemRequire, exports, module, deps, relId);\n } else {\n deps = deps.map(function (depName) {\n return stringRequire(systemRequire, exports, module, depName, relId);\n });\n process.nextTick(function () {\n callback.apply(null, deps);\n });\n }\n }\n amdRequire.toUrl = function (filePath) {\n if (filePath.indexOf('.') === 0) {\n return normalize(filePath, path.dirname(module.filename));\n } else {\n return filePath;\n }\n };\n return amdRequire;\n };\n requireFn = requireFn || function req() {\n return module.require.apply(module, arguments);\n };\n function runFactory(id, deps, factory) {\n var r, e, m, result;\n if (id) {\n e = loaderCache[id] = {};\n m = {\n id: id,\n uri: __filename,\n exports: e\n };\n r = makeRequire(requireFn, e, m, id);\n } else {\n if (alreadyCalled) {\n throw new Error('amdefine with no module ID cannot be called more than once per file.');\n }\n alreadyCalled = true;\n e = module.exports;\n m = module;\n r = makeRequire(requireFn, e, m, module.id);\n }\n if (deps) {\n deps = deps.map(function (depName) {\n return r(depName);\n });\n }\n if (typeof factory === 'function') {\n result = factory.apply(m.exports, deps);\n } else {\n result = factory;\n }\n if (result !== undefined) {\n m.exports = result;\n if (id) {\n loaderCache[id] = m.exports;\n }\n }\n }\n stringRequire = function (systemRequire, exports, module, id, relId) {\n var index = id.indexOf('!'), originalId = id, prefix, plugin;\n if (index === -1) {\n id = normalize(id, relId);\n if (id === 'require') {\n return makeRequire(systemRequire, exports, module, relId);\n } else if (id === 'exports') {\n return exports;\n } else if (id === 'module') {\n return module;\n } else if (loaderCache.hasOwnProperty(id)) {\n return loaderCache[id];\n } else if (defineCache[id]) {\n runFactory.apply(null, defineCache[id]);\n return loaderCache[id];\n } else {\n if (systemRequire) {\n return systemRequire(originalId);\n } else {\n throw new Error('No module with ID: ' + id);\n }\n }\n } else {\n prefix = id.substring(0, index);\n id = id.substring(index + 1, id.length);\n plugin = stringRequire(systemRequire, exports, module, prefix, relId);\n if (plugin.normalize) {\n id = plugin.normalize(id, makeNormalize(relId));\n } else {\n id = normalize(id, relId);\n }\n if (loaderCache[id]) {\n return loaderCache[id];\n } else {\n plugin.load(id, makeRequire(systemRequire, exports, module, relId), makeLoad(id), {});\n return loaderCache[id];\n }\n }\n };\n function define(id, deps, factory) {\n if (Array.isArray(id)) {\n factory = deps;\n deps = id;\n id = undefined;\n } else if (typeof id !== 'string') {\n factory = id;\n id = deps = undefined;\n }\n if (deps && !Array.isArray(deps)) {\n factory = deps;\n deps = undefined;\n }\n if (!deps) {\n deps = [\n 'require',\n 'exports',\n 'module'\n ];\n }\n if (id) {\n defineCache[id] = [\n id,\n deps,\n factory\n ];\n } else {\n runFactory(id, deps, factory);\n }\n }\n define.require = function (id) {\n if (loaderCache[id]) {\n return loaderCache[id];\n }\n if (defineCache[id]) {\n runFactory.apply(null, defineCache[id]);\n return loaderCache[id];\n }\n };\n define.amd = {};\n return define;\n }\n module.exports = amdefine;\n });\n require.define('/node_modules/source-map/lib/source-map/source-map-generator.js', function (module, exports, __dirname, __filename) {\n if (typeof define !== 'function') {\n var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);\n }\n define(function (require, exports, module) {\n var base64VLQ = require('/node_modules/source-map/lib/source-map/base64-vlq.js', module);\n var util = require('/node_modules/source-map/lib/source-map/util.js', module);\n var ArraySet = require('/node_modules/source-map/lib/source-map/array-set.js', module).ArraySet;\n function SourceMapGenerator(aArgs) {\n this._file = util.getArg(aArgs, 'file');\n this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);\n this._sources = new ArraySet;\n this._names = new ArraySet;\n this._mappings = [];\n this._sourcesContents = null;\n }\n SourceMapGenerator.prototype._version = 3;\n SourceMapGenerator.fromSourceMap = function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {\n var sourceRoot = aSourceMapConsumer.sourceRoot;\n var generator = new SourceMapGenerator({\n file: aSourceMapConsumer.file,\n sourceRoot: sourceRoot\n });\n aSourceMapConsumer.eachMapping(function (mapping) {\n var newMapping = {\n generated: {\n line: mapping.generatedLine,\n column: mapping.generatedColumn\n }\n };\n if (mapping.source) {\n newMapping.source = mapping.source;\n if (sourceRoot) {\n newMapping.source = util.relative(sourceRoot, newMapping.source);\n }\n newMapping.original = {\n line: mapping.originalLine,\n column: mapping.originalColumn\n };\n if (mapping.name) {\n newMapping.name = mapping.name;\n }\n }\n generator.addMapping(newMapping);\n });\n aSourceMapConsumer.sources.forEach(function (sourceFile) {\n var content = aSourceMapConsumer.sourceContentFor(sourceFile);\n if (content) {\n generator.setSourceContent(sourceFile, content);\n }\n });\n return generator;\n };\n SourceMapGenerator.prototype.addMapping = function SourceMapGenerator_addMapping(aArgs) {\n var generated = util.getArg(aArgs, 'generated');\n var original = util.getArg(aArgs, 'original', null);\n var source = util.getArg(aArgs, 'source', null);\n var name = util.getArg(aArgs, 'name', null);\n this._validateMapping(generated, original, source, name);\n if (source && !this._sources.has(source)) {\n this._sources.add(source);\n }\n if (name && !this._names.has(name)) {\n this._names.add(name);\n }\n this._mappings.push({\n generatedLine: generated.line,\n generatedColumn: generated.column,\n originalLine: original != null && original.line,\n originalColumn: original != null && original.column,\n source: source,\n name: name\n });\n };\n SourceMapGenerator.prototype.setSourceContent = function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {\n var source = aSourceFile;\n if (this._sourceRoot) {\n source = util.relative(this._sourceRoot, source);\n }\n if (aSourceContent !== null) {\n if (!this._sourcesContents) {\n this._sourcesContents = {};\n }\n this._sourcesContents[util.toSetString(source)] = aSourceContent;\n } else {\n delete this._sourcesContents[util.toSetString(source)];\n if (Object.keys(this._sourcesContents).length === 0) {\n this._sourcesContents = null;\n }\n }\n };\n SourceMapGenerator.prototype.applySourceMap = function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) {\n if (!aSourceFile) {\n aSourceFile = aSourceMapConsumer.file;\n }\n var sourceRoot = this._sourceRoot;\n if (sourceRoot) {\n aSourceFile = util.relative(sourceRoot, aSourceFile);\n }\n var newSources = new ArraySet;\n var newNames = new ArraySet;\n this._mappings.forEach(function (mapping) {\n if (mapping.source === aSourceFile && mapping.originalLine) {\n var original = aSourceMapConsumer.originalPositionFor({\n line: mapping.originalLine,\n column: mapping.originalColumn\n });\n if (original.source !== null) {\n if (sourceRoot) {\n mapping.source = util.relative(sourceRoot, original.source);\n } else {\n mapping.source = original.source;\n }\n mapping.originalLine = original.line;\n mapping.originalColumn = original.column;\n if (original.name !== null && mapping.name !== null) {\n mapping.name = original.name;\n }\n }\n }\n var source = mapping.source;\n if (source && !newSources.has(source)) {\n newSources.add(source);\n }\n var name = mapping.name;\n if (name && !newNames.has(name)) {\n newNames.add(name);\n }\n }, this);\n this._sources = newSources;\n this._names = newNames;\n aSourceMapConsumer.sources.forEach(function (sourceFile) {\n var content = aSourceMapConsumer.sourceContentFor(sourceFile);\n if (content) {\n if (sourceRoot) {\n sourceFile = util.relative(sourceRoot, sourceFile);\n }\n this.setSourceContent(sourceFile, content);\n }\n }, this);\n };\n SourceMapGenerator.prototype._validateMapping = function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, aName) {\n if (aGenerated && 'line' in aGenerated && 'column' in aGenerated && aGenerated.line > 0 && aGenerated.column >= 0 && !aOriginal && !aSource && !aName) {\n return;\n } else if (aGenerated && 'line' in aGenerated && 'column' in aGenerated && aOriginal && 'line' in aOriginal && 'column' in aOriginal && aGenerated.line > 0 && aGenerated.column >= 0 && aOriginal.line > 0 && aOriginal.column >= 0 && aSource) {\n return;\n } else {\n throw new Error('Invalid mapping: ' + JSON.stringify({\n generated: aGenerated,\n source: aSource,\n orginal: aOriginal,\n name: aName\n }));\n }\n };\n SourceMapGenerator.prototype._serializeMappings = function SourceMapGenerator_serializeMappings() {\n var previousGeneratedColumn = 0;\n var previousGeneratedLine = 1;\n var previousOriginalColumn = 0;\n var previousOriginalLine = 0;\n var previousName = 0;\n var previousSource = 0;\n var result = '';\n var mapping;\n this._mappings.sort(util.compareByGeneratedPositions);\n for (var i = 0, len = this._mappings.length; i < len; i++) {\n mapping = this._mappings[i];\n if (mapping.generatedLine !== previousGeneratedLine) {\n previousGeneratedColumn = 0;\n while (mapping.generatedLine !== previousGeneratedLine) {\n result += ';';\n previousGeneratedLine++;\n }\n } else {\n if (i > 0) {\n if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) {\n continue;\n }\n result += ',';\n }\n }\n result += base64VLQ.encode(mapping.generatedColumn - previousGeneratedColumn);\n previousGeneratedColumn = mapping.generatedColumn;\n if (mapping.source) {\n result += base64VLQ.encode(this._sources.indexOf(mapping.source) - previousSource);\n previousSource = this._sources.indexOf(mapping.source);\n result += base64VLQ.encode(mapping.originalLine - 1 - previousOriginalLine);\n previousOriginalLine = mapping.originalLine - 1;\n result += base64VLQ.encode(mapping.originalColumn - previousOriginalColumn);\n previousOriginalColumn = mapping.originalColumn;\n if (mapping.name) {\n result += base64VLQ.encode(this._names.indexOf(mapping.name) - previousName);\n previousName = this._names.indexOf(mapping.name);\n }\n }\n }\n return result;\n };\n SourceMapGenerator.prototype._generateSourcesContent = function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {\n return aSources.map(function (source) {\n if (!this._sourcesContents) {\n return null;\n }\n if (aSourceRoot) {\n source = util.relative(aSourceRoot, source);\n }\n var key = util.toSetString(source);\n return Object.prototype.hasOwnProperty.call(this._sourcesContents, key) ? this._sourcesContents[key] : null;\n }, this);\n };\n SourceMapGenerator.prototype.toJSON = function SourceMapGenerator_toJSON() {\n var map = {\n version: this._version,\n file: this._file,\n sources: this._sources.toArray(),\n names: this._names.toArray(),\n mappings: this._serializeMappings()\n };\n if (this._sourceRoot) {\n map.sourceRoot = this._sourceRoot;\n }\n if (this._sourcesContents) {\n map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);\n }\n return map;\n };\n SourceMapGenerator.prototype.toString = function SourceMapGenerator_toString() {\n return JSON.stringify(this);\n };\n exports.SourceMapGenerator = SourceMapGenerator;\n });\n });\n require.define('/node_modules/source-map/lib/source-map/array-set.js', function (module, exports, __dirname, __filename) {\n if (typeof define !== 'function') {\n var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);\n }\n define(function (require, exports, module) {\n var util = require('/node_modules/source-map/lib/source-map/util.js', module);\n function ArraySet() {\n this._array = [];\n this._set = {};\n }\n ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {\n var set = new ArraySet;\n for (var i = 0, len = aArray.length; i < len; i++) {\n set.add(aArray[i], aAllowDuplicates);\n }\n return set;\n };\n ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {\n var isDuplicate = this.has(aStr);\n var idx = this._array.length;\n if (!isDuplicate || aAllowDuplicates) {\n this._array.push(aStr);\n }\n if (!isDuplicate) {\n this._set[util.toSetString(aStr)] = idx;\n }\n };\n ArraySet.prototype.has = function ArraySet_has(aStr) {\n return Object.prototype.hasOwnProperty.call(this._set, util.toSetString(aStr));\n };\n ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {\n if (this.has(aStr)) {\n return this._set[util.toSetString(aStr)];\n }\n throw new Error('\"' + aStr + '\" is not in the set.');\n };\n ArraySet.prototype.at = function ArraySet_at(aIdx) {\n if (aIdx >= 0 && aIdx < this._array.length) {\n return this._array[aIdx];\n }\n throw new Error('No element indexed by ' + aIdx);\n };\n ArraySet.prototype.toArray = function ArraySet_toArray() {\n return this._array.slice();\n };\n exports.ArraySet = ArraySet;\n });\n });\n require.define('/node_modules/source-map/lib/source-map/base64-vlq.js', function (module, exports, __dirname, __filename) {\n if (typeof define !== 'function') {\n var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);\n }\n define(function (require, exports, module) {\n var base64 = require('/node_modules/source-map/lib/source-map/base64.js', module);\n var VLQ_BASE_SHIFT = 5;\n var VLQ_BASE = 1 << VLQ_BASE_SHIFT;\n var VLQ_BASE_MASK = VLQ_BASE - 1;\n var VLQ_CONTINUATION_BIT = VLQ_BASE;\n function toVLQSigned(aValue) {\n return aValue < 0 ? (-aValue << 1) + 1 : (aValue << 1) + 0;\n }\n function fromVLQSigned(aValue) {\n var isNegative = (aValue & 1) === 1;\n var shifted = aValue >> 1;\n return isNegative ? -shifted : shifted;\n }\n exports.encode = function base64VLQ_encode(aValue) {\n var encoded = '';\n var digit;\n var vlq = toVLQSigned(aValue);\n do {\n digit = vlq & VLQ_BASE_MASK;\n vlq >>>= VLQ_BASE_SHIFT;\n if (vlq > 0) {\n digit |= VLQ_CONTINUATION_BIT;\n }\n encoded += base64.encode(digit);\n } while (vlq > 0);\n return encoded;\n };\n exports.decode = function base64VLQ_decode(aStr) {\n var i = 0;\n var strLen = aStr.length;\n var result = 0;\n var shift = 0;\n var continuation, digit;\n do {\n if (i >= strLen) {\n throw new Error('Expected more digits in base 64 VLQ value.');\n }\n digit = base64.decode(aStr.charAt(i++));\n continuation = !!(digit & VLQ_CONTINUATION_BIT);\n digit &= VLQ_BASE_MASK;\n result = result + (digit << shift);\n shift += VLQ_BASE_SHIFT;\n } while (continuation);\n return {\n value: fromVLQSigned(result),\n rest: aStr.slice(i)\n };\n };\n });\n });\n require.define('/node_modules/source-map/lib/source-map/base64.js', function (module, exports, __dirname, __filename) {\n if (typeof define !== 'function') {\n var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);\n }\n define(function (require, exports, module) {\n var charToIntMap = {};\n var intToCharMap = {};\n 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('').forEach(function (ch, index) {\n charToIntMap[ch] = index;\n intToCharMap[index] = ch;\n });\n exports.encode = function base64_encode(aNumber) {\n if (aNumber in intToCharMap) {\n return intToCharMap[aNumber];\n }\n throw new TypeError('Must be between 0 and 63: ' + aNumber);\n };\n exports.decode = function base64_decode(aChar) {\n if (aChar in charToIntMap) {\n return charToIntMap[aChar];\n }\n throw new TypeError('Not a valid base 64 digit: ' + aChar);\n };\n });\n });\n require.define('/node_modules/source-map/lib/source-map/source-map-consumer.js', function (module, exports, __dirname, __filename) {\n if (typeof define !== 'function') {\n var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);\n }\n define(function (require, exports, module) {\n var util = require('/node_modules/source-map/lib/source-map/util.js', module);\n var binarySearch = require('/node_modules/source-map/lib/source-map/binary-search.js', module);\n var ArraySet = require('/node_modules/source-map/lib/source-map/array-set.js', module).ArraySet;\n var base64VLQ = require('/node_modules/source-map/lib/source-map/base64-vlq.js', module);\n function SourceMapConsumer(aSourceMap) {\n var sourceMap = aSourceMap;\n if (typeof aSourceMap === 'string') {\n sourceMap = JSON.parse(aSourceMap.replace(/^\\)\\]\\}'/, ''));\n }\n var version = util.getArg(sourceMap, 'version');\n var sources = util.getArg(sourceMap, 'sources');\n var names = util.getArg(sourceMap, 'names', []);\n var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);\n var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);\n var mappings = util.getArg(sourceMap, 'mappings');\n var file = util.getArg(sourceMap, 'file', null);\n if (version != this._version) {\n throw new Error('Unsupported version: ' + version);\n }\n this._names = ArraySet.fromArray(names, true);\n this._sources = ArraySet.fromArray(sources, true);\n this.sourceRoot = sourceRoot;\n this.sourcesContent = sourcesContent;\n this._mappings = mappings;\n this.file = file;\n }\n SourceMapConsumer.fromSourceMap = function SourceMapConsumer_fromSourceMap(aSourceMap) {\n var smc = Object.create(SourceMapConsumer.prototype);\n smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);\n smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);\n smc.sourceRoot = aSourceMap._sourceRoot;\n smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), smc.sourceRoot);\n smc.file = aSourceMap._file;\n smc.__generatedMappings = aSourceMap._mappings.slice().sort(util.compareByGeneratedPositions);\n smc.__originalMappings = aSourceMap._mappings.slice().sort(util.compareByOriginalPositions);\n return smc;\n };\n SourceMapConsumer.prototype._version = 3;\n Object.defineProperty(SourceMapConsumer.prototype, 'sources', {\n get: function () {\n return this._sources.toArray().map(function (s) {\n return this.sourceRoot ? util.join(this.sourceRoot, s) : s;\n }, this);\n }\n });\n SourceMapConsumer.prototype.__generatedMappings = null;\n Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', {\n get: function () {\n if (!this.__generatedMappings) {\n this.__generatedMappings = [];\n this.__originalMappings = [];\n this._parseMappings(this._mappings, this.sourceRoot);\n }\n return this.__generatedMappings;\n }\n });\n SourceMapConsumer.prototype.__originalMappings = null;\n Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', {\n get: function () {\n if (!this.__originalMappings) {\n this.__generatedMappings = [];\n this.__originalMappings = [];\n this._parseMappings(this._mappings, this.sourceRoot);\n }\n return this.__originalMappings;\n }\n });\n SourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {\n var generatedLine = 1;\n var previousGeneratedColumn = 0;\n var previousOriginalLine = 0;\n var previousOriginalColumn = 0;\n var previousSource = 0;\n var previousName = 0;\n var mappingSeparator = /^[,;]/;\n var str = aStr;\n var mapping;\n var temp;\n while (str.length > 0) {\n if (str.charAt(0) === ';') {\n generatedLine++;\n str = str.slice(1);\n previousGeneratedColumn = 0;\n } else if (str.charAt(0) === ',') {\n str = str.slice(1);\n } else {\n mapping = {};\n mapping.generatedLine = generatedLine;\n temp = base64VLQ.decode(str);\n mapping.generatedColumn = previousGeneratedColumn + temp.value;\n previousGeneratedColumn = mapping.generatedColumn;\n str = temp.rest;\n if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {\n temp = base64VLQ.decode(str);\n mapping.source = this._sources.at(previousSource + temp.value);\n previousSource += temp.value;\n str = temp.rest;\n if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {\n throw new Error('Found a source, but no line and column');\n }\n temp = base64VLQ.decode(str);\n mapping.originalLine = previousOriginalLine + temp.value;\n previousOriginalLine = mapping.originalLine;\n mapping.originalLine += 1;\n str = temp.rest;\n if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {\n throw new Error('Found a source and line, but no column');\n }\n temp = base64VLQ.decode(str);\n mapping.originalColumn = previousOriginalColumn + temp.value;\n previousOriginalColumn = mapping.originalColumn;\n str = temp.rest;\n if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {\n temp = base64VLQ.decode(str);\n mapping.name = this._names.at(previousName + temp.value);\n previousName += temp.value;\n str = temp.rest;\n }\n }\n this.__generatedMappings.push(mapping);\n if (typeof mapping.originalLine === 'number') {\n this.__originalMappings.push(mapping);\n }\n }\n }\n this.__originalMappings.sort(util.compareByOriginalPositions);\n };\n SourceMapConsumer.prototype._findMapping = function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, aColumnName, aComparator) {\n if (aNeedle[aLineName] <= 0) {\n throw new TypeError('Line must be greater than or equal to 1, got ' + aNeedle[aLineName]);\n }\n if (aNeedle[aColumnName] < 0) {\n throw new TypeError('Column must be greater than or equal to 0, got ' + aNeedle[aColumnName]);\n }\n return binarySearch.search(aNeedle, aMappings, aComparator);\n };\n SourceMapConsumer.prototype.originalPositionFor = function SourceMapConsumer_originalPositionFor(aArgs) {\n var needle = {\n generatedLine: util.getArg(aArgs, 'line'),\n generatedColumn: util.getArg(aArgs, 'column')\n };\n var mapping = this._findMapping(needle, this._generatedMappings, 'generatedLine', 'generatedColumn', util.compareByGeneratedPositions);\n if (mapping) {\n var source = util.getArg(mapping, 'source', null);\n if (source && this.sourceRoot) {\n source = util.join(this.sourceRoot, source);\n }\n return {\n source: source,\n line: util.getArg(mapping, 'originalLine', null),\n column: util.getArg(mapping, 'originalColumn', null),\n name: util.getArg(mapping, 'name', null)\n };\n }\n return {\n source: null,\n line: null,\n column: null,\n name: null\n };\n };\n SourceMapConsumer.prototype.sourceContentFor = function SourceMapConsumer_sourceContentFor(aSource) {\n if (!this.sourcesContent) {\n return null;\n }\n if (this.sourceRoot) {\n aSource = util.relative(this.sourceRoot, aSource);\n }\n if (this._sources.has(aSource)) {\n return this.sourcesContent[this._sources.indexOf(aSource)];\n }\n var url;\n if (this.sourceRoot && (url = util.urlParse(this.sourceRoot))) {\n var fileUriAbsPath = aSource.replace(/^file:\\/\\//, '');\n if (url.scheme == 'file' && this._sources.has(fileUriAbsPath)) {\n return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)];\n }\n if ((!url.path || url.path == '/') && this._sources.has('/' + aSource)) {\n return this.sourcesContent[this._sources.indexOf('/' + aSource)];\n }\n }\n throw new Error('\"' + aSource + '\" is not in the SourceMap.');\n };\n SourceMapConsumer.prototype.generatedPositionFor = function SourceMapConsumer_generatedPositionFor(aArgs) {\n var needle = {\n source: util.getArg(aArgs, 'source'),\n originalLine: util.getArg(aArgs, 'line'),\n originalColumn: util.getArg(aArgs, 'column')\n };\n if (this.sourceRoot) {\n needle.source = util.relative(this.sourceRoot, needle.source);\n }\n var mapping = this._findMapping(needle, this._originalMappings, 'originalLine', 'originalColumn', util.compareByOriginalPositions);\n if (mapping) {\n return {\n line: util.getArg(mapping, 'generatedLine', null),\n column: util.getArg(mapping, 'generatedColumn', null)\n };\n }\n return {\n line: null,\n column: null\n };\n };\n SourceMapConsumer.GENERATED_ORDER = 1;\n SourceMapConsumer.ORIGINAL_ORDER = 2;\n SourceMapConsumer.prototype.eachMapping = function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {\n var context = aContext || null;\n var order = aOrder || SourceMapConsumer.GENERATED_ORDER;\n var mappings;\n switch (order) {\n case SourceMapConsumer.GENERATED_ORDER:\n mappings = this._generatedMappings;\n break;\n case SourceMapConsumer.ORIGINAL_ORDER:\n mappings = this._originalMappings;\n break;\n default:\n throw new Error('Unknown order of iteration.');\n }\n var sourceRoot = this.sourceRoot;\n mappings.map(function (mapping) {\n var source = mapping.source;\n if (source && sourceRoot) {\n source = util.join(sourceRoot, source);\n }\n return {\n source: source,\n generatedLine: mapping.generatedLine,\n generatedColumn: mapping.generatedColumn,\n originalLine: mapping.originalLine,\n originalColumn: mapping.originalColumn,\n name: mapping.name\n };\n }).forEach(aCallback, context);\n };\n exports.SourceMapConsumer = SourceMapConsumer;\n });\n });\n require.define('/node_modules/source-map/lib/source-map/binary-search.js', function (module, exports, __dirname, __filename) {\n if (typeof define !== 'function') {\n var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);\n }\n define(function (require, exports, module) {\n function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) {\n var mid = Math.floor((aHigh - aLow) / 2) + aLow;\n var cmp = aCompare(aNeedle, aHaystack[mid], true);\n if (cmp === 0) {\n return aHaystack[mid];\n } else if (cmp > 0) {\n if (aHigh - mid > 1) {\n return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare);\n }\n return aHaystack[mid];\n } else {\n if (mid - aLow > 1) {\n return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare);\n }\n return aLow < 0 ? null : aHaystack[aLow];\n }\n }\n exports.search = function search(aNeedle, aHaystack, aCompare) {\n return aHaystack.length > 0 ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) : null;\n };\n });\n });\n require.define('/node_modules/esutils/lib/utils.js', function (module, exports, __dirname, __filename) {\n (function () {\n 'use strict';\n exports.code = require('/node_modules/esutils/lib/code.js', module);\n exports.keyword = require('/node_modules/esutils/lib/keyword.js', module);\n }());\n });\n require.define('/node_modules/esutils/lib/keyword.js', function (module, exports, __dirname, __filename) {\n (function () {\n 'use strict';\n var code = require('/node_modules/esutils/lib/code.js', module);\n function isStrictModeReservedWordES6(id) {\n switch (id) {\n case 'implements':\n case 'interface':\n case 'package':\n case 'private':\n case 'protected':\n case 'public':\n case 'static':\n case 'let':\n return true;\n default:\n return false;\n }\n }\n function isKeywordES5(id, strict) {\n if (!strict && id === 'yield') {\n return false;\n }\n return isKeywordES6(id, strict);\n }\n function isKeywordES6(id, strict) {\n if (strict && isStrictModeReservedWordES6(id)) {\n return true;\n }\n switch (id.length) {\n case 2:\n return id === 'if' || id === 'in' || id === 'do';\n case 3:\n return id === 'var' || id === 'for' || id === 'new' || id === 'try';\n case 4:\n return id === 'this' || id === 'else' || id === 'case' || id === 'void' || id === 'with' || id === 'enum';\n case 5:\n return id === 'while' || id === 'break' || id === 'catch' || id === 'throw' || id === 'const' || id === 'yield' || id === 'class' || id === 'super';\n case 6:\n return id === 'return' || id === 'typeof' || id === 'delete' || id === 'switch' || id === 'export' || id === 'import';\n case 7:\n return id === 'default' || id === 'finally' || id === 'extends';\n case 8:\n return id === 'function' || id === 'continue' || id === 'debugger';\n case 10:\n return id === 'instanceof';\n default:\n return false;\n }\n }\n function isRestrictedWord(id) {\n return id === 'eval' || id === 'arguments';\n }\n function isIdentifierName(id) {\n var i, iz, ch;\n if (id.length === 0) {\n return false;\n }\n ch = id.charCodeAt(0);\n if (!code.isIdentifierStart(ch) || ch === 92) {\n return false;\n }\n for (i = 1, iz = id.length; i < iz; ++i) {\n ch = id.charCodeAt(i);\n if (!code.isIdentifierPart(ch) || ch === 92) {\n return false;\n }\n }\n return true;\n }\n module.exports = {\n isKeywordES5: isKeywordES5,\n isKeywordES6: isKeywordES6,\n isRestrictedWord: isRestrictedWord,\n isIdentifierName: isIdentifierName\n };\n }());\n });\n require.define('/node_modules/esutils/lib/code.js', function (module, exports, __dirname, __filename) {\n (function () {\n 'use strict';\n var Regex;\n Regex = {\n NonAsciiIdentifierStart: new 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};\n function isDecimalDigit(ch) {\n return ch >= 48 && ch <= 57;\n }\n function isHexDigit(ch) {\n return isDecimalDigit(ch) || 97 <= ch && ch <= 102 || 65 <= ch && ch <= 70;\n }\n function isOctalDigit(ch) {\n return ch >= 48 && ch <= 55;\n }\n function isWhiteSpace(ch) {\n return ch === 32 || ch === 9 || ch === 11 || ch === 12 || ch === 160 || ch >= 5760 && [\n 5760,\n 6158,\n 8192,\n 8193,\n 8194,\n 8195,\n 8196,\n 8197,\n 8198,\n 8199,\n 8200,\n 8201,\n 8202,\n 8239,\n 8287,\n 12288,\n 65279\n ].indexOf(ch) >= 0;\n }\n function isLineTerminator(ch) {\n return ch === 10 || ch === 13 || ch === 8232 || ch === 8233;\n }\n function isIdentifierStart(ch) {\n return ch === 36 || ch === 95 || ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 || ch === 92 || ch >= 128 && Regex.NonAsciiIdentifierStart.test(String.fromCharCode(ch));\n }\n function isIdentifierPart(ch) {\n return ch === 36 || ch === 95 || ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 || ch >= 48 && ch <= 57 || ch === 92 || ch >= 128 && Regex.NonAsciiIdentifierPart.test(String.fromCharCode(ch));\n }\n module.exports = {\n isDecimalDigit: isDecimalDigit,\n isHexDigit: isHexDigit,\n isOctalDigit: isOctalDigit,\n isWhiteSpace: isWhiteSpace,\n isLineTerminator: isLineTerminator,\n isIdentifierStart: isIdentifierStart,\n isIdentifierPart: isIdentifierPart\n };\n }());\n });\n require.define('/node_modules/estraverse/estraverse.js', function (module, exports, __dirname, __filename) {\n (function (root, factory) {\n 'use strict';\n if (typeof define === 'function' && define.amd) {\n define(['exports'], factory);\n } else if (typeof exports !== 'undefined') {\n factory(exports);\n } else {\n factory(root.estraverse = {});\n }\n }(this, function (exports) {\n 'use strict';\n var Syntax, isArray, VisitorOption, VisitorKeys, BREAK, SKIP;\n Syntax = {\n AssignmentExpression: 'AssignmentExpression',\n ArrayExpression: 'ArrayExpression',\n ArrayPattern: 'ArrayPattern',\n ArrowFunctionExpression: 'ArrowFunctionExpression',\n BlockStatement: 'BlockStatement',\n BinaryExpression: 'BinaryExpression',\n BreakStatement: 'BreakStatement',\n CallExpression: 'CallExpression',\n CatchClause: 'CatchClause',\n ClassBody: 'ClassBody',\n ClassDeclaration: 'ClassDeclaration',\n ClassExpression: 'ClassExpression',\n ConditionalExpression: 'ConditionalExpression',\n ContinueStatement: 'ContinueStatement',\n DebuggerStatement: 'DebuggerStatement',\n DirectiveStatement: 'DirectiveStatement',\n DoWhileStatement: 'DoWhileStatement',\n EmptyStatement: 'EmptyStatement',\n ExpressionStatement: 'ExpressionStatement',\n ForStatement: 'ForStatement',\n ForInStatement: 'ForInStatement',\n FunctionDeclaration: 'FunctionDeclaration',\n FunctionExpression: 'FunctionExpression',\n Identifier: 'Identifier',\n IfStatement: 'IfStatement',\n Literal: 'Literal',\n LabeledStatement: 'LabeledStatement',\n LogicalExpression: 'LogicalExpression',\n MemberExpression: 'MemberExpression',\n MethodDefinition: 'MethodDefinition',\n NewExpression: 'NewExpression',\n ObjectExpression: 'ObjectExpression',\n ObjectPattern: 'ObjectPattern',\n Program: 'Program',\n Property: 'Property',\n ReturnStatement: 'ReturnStatement',\n SequenceExpression: 'SequenceExpression',\n SwitchStatement: 'SwitchStatement',\n SwitchCase: 'SwitchCase',\n ThisExpression: 'ThisExpression',\n ThrowStatement: 'ThrowStatement',\n TryStatement: 'TryStatement',\n UnaryExpression: 'UnaryExpression',\n UpdateExpression: 'UpdateExpression',\n VariableDeclaration: 'VariableDeclaration',\n VariableDeclarator: 'VariableDeclarator',\n WhileStatement: 'WhileStatement',\n WithStatement: 'WithStatement',\n YieldExpression: 'YieldExpression'\n };\n function ignoreJSHintError() {\n }\n isArray = Array.isArray;\n if (!isArray) {\n isArray = function isArray(array) {\n return Object.prototype.toString.call(array) === '[object Array]';\n };\n }\n function deepCopy(obj) {\n var ret = {}, key, val;\n for (key in obj) {\n if (obj.hasOwnProperty(key)) {\n val = obj[key];\n if (typeof val === 'object' && val !== null) {\n ret[key] = deepCopy(val);\n } else {\n ret[key] = val;\n }\n }\n }\n return ret;\n }\n function shallowCopy(obj) {\n var ret = {}, key;\n for (key in obj) {\n if (obj.hasOwnProperty(key)) {\n ret[key] = obj[key];\n }\n }\n return ret;\n }\n ignoreJSHintError(shallowCopy);\n function upperBound(array, func) {\n var diff, len, i, current;\n len = array.length;\n i = 0;\n while (len) {\n diff = len >>> 1;\n current = i + diff;\n if (func(array[current])) {\n len = diff;\n } else {\n i = current + 1;\n len -= diff + 1;\n }\n }\n return i;\n }\n function lowerBound(array, func) {\n var diff, len, i, current;\n len = array.length;\n i = 0;\n while (len) {\n diff = len >>> 1;\n current = i + diff;\n if (func(array[current])) {\n i = current + 1;\n len -= diff + 1;\n } else {\n len = diff;\n }\n }\n return i;\n }\n ignoreJSHintError(lowerBound);\n VisitorKeys = {\n AssignmentExpression: [\n 'left',\n 'right'\n ],\n ArrayExpression: ['elements'],\n ArrayPattern: ['elements'],\n ArrowFunctionExpression: [\n 'params',\n 'defaults',\n 'rest',\n 'body'\n ],\n BlockStatement: ['body'],\n BinaryExpression: [\n 'left',\n 'right'\n ],\n BreakStatement: ['label'],\n CallExpression: [\n 'callee',\n 'arguments'\n ],\n CatchClause: [\n 'param',\n 'body'\n ],\n ClassBody: ['body'],\n ClassDeclaration: [\n 'id',\n 'body',\n 'superClass'\n ],\n ClassExpression: [\n 'id',\n 'body',\n 'superClass'\n ],\n ConditionalExpression: [\n 'test',\n 'consequent',\n 'alternate'\n ],\n ContinueStatement: ['label'],\n DebuggerStatement: [],\n DirectiveStatement: [],\n DoWhileStatement: [\n 'body',\n 'test'\n ],\n EmptyStatement: [],\n ExpressionStatement: ['expression'],\n ForStatement: [\n 'init',\n 'test',\n 'update',\n 'body'\n ],\n ForInStatement: [\n 'left',\n 'right',\n 'body'\n ],\n FunctionDeclaration: [\n 'id',\n 'params',\n 'defaults',\n 'rest',\n 'body'\n ],\n FunctionExpression: [\n 'id',\n 'params',\n 'defaults',\n 'rest',\n 'body'\n ],\n Identifier: [],\n IfStatement: [\n 'test',\n 'consequent',\n 'alternate'\n ],\n Literal: [],\n LabeledStatement: [\n 'label',\n 'body'\n ],\n LogicalExpression: [\n 'left',\n 'right'\n ],\n MemberExpression: [\n 'object',\n 'property'\n ],\n MethodDefinition: [\n 'key',\n 'value'\n ],\n NewExpression: [\n 'callee',\n 'arguments'\n ],\n ObjectExpression: ['properties'],\n ObjectPattern: ['properties'],\n Program: ['body'],\n Property: [\n 'key',\n 'value'\n ],\n ReturnStatement: ['argument'],\n SequenceExpression: ['expressions'],\n SwitchStatement: [\n 'discriminant',\n 'cases'\n ],\n SwitchCase: [\n 'test',\n 'consequent'\n ],\n ThisExpression: [],\n ThrowStatement: ['argument'],\n TryStatement: [\n 'block',\n 'handlers',\n 'handler',\n 'guardedHandlers',\n 'finalizer'\n ],\n UnaryExpression: ['argument'],\n UpdateExpression: ['argument'],\n VariableDeclaration: ['declarations'],\n VariableDeclarator: [\n 'id',\n 'init'\n ],\n WhileStatement: [\n 'test',\n 'body'\n ],\n WithStatement: [\n 'object',\n 'body'\n ],\n YieldExpression: ['argument']\n };\n BREAK = {};\n SKIP = {};\n VisitorOption = {\n Break: BREAK,\n Skip: SKIP\n };\n function Reference(parent, key) {\n this.parent = parent;\n this.key = key;\n }\n Reference.prototype.replace = function replace(node) {\n this.parent[this.key] = node;\n };\n function Element(node, path, wrap, ref) {\n this.node = node;\n this.path = path;\n this.wrap = wrap;\n this.ref = ref;\n }\n function Controller() {\n }\n Controller.prototype.path = function path() {\n var i, iz, j, jz, result, element;\n function addToPath(result, path) {\n if (isArray(path)) {\n for (j = 0, jz = path.length; j < jz; ++j) {\n result.push(path[j]);\n }\n } else {\n result.push(path);\n }\n }\n if (!this.__current.path) {\n return null;\n }\n result = [];\n for (i = 2, iz = this.__leavelist.length; i < iz; ++i) {\n element = this.__leavelist[i];\n addToPath(result, element.path);\n }\n addToPath(result, this.__current.path);\n return result;\n };\n Controller.prototype.parents = function parents() {\n var i, iz, result;\n result = [];\n for (i = 1, iz = this.__leavelist.length; i < iz; ++i) {\n result.push(this.__leavelist[i].node);\n }\n return result;\n };\n Controller.prototype.current = function current() {\n return this.__current.node;\n };\n Controller.prototype.__execute = function __execute(callback, element) {\n var previous, result;\n result = undefined;\n previous = this.__current;\n this.__current = element;\n this.__state = null;\n if (callback) {\n result = callback.call(this, element.node, this.__leavelist[this.__leavelist.length - 1].node);\n }\n this.__current = previous;\n return result;\n };\n Controller.prototype.notify = function notify(flag) {\n this.__state = flag;\n };\n Controller.prototype.skip = function () {\n this.notify(SKIP);\n };\n Controller.prototype['break'] = function () {\n this.notify(BREAK);\n };\n Controller.prototype.__initialize = function (root, visitor) {\n this.visitor = visitor;\n this.root = root;\n this.__worklist = [];\n this.__leavelist = [];\n this.__current = null;\n this.__state = null;\n };\n Controller.prototype.traverse = function traverse(root, visitor) {\n var worklist, leavelist, element, node, nodeType, ret, key, current, current2, candidates, candidate, sentinel;\n this.__initialize(root, visitor);\n sentinel = {};\n worklist = this.__worklist;\n leavelist = this.__leavelist;\n worklist.push(new Element(root, null, null, null));\n leavelist.push(new Element(null, null, null, null));\n while (worklist.length) {\n element = worklist.pop();\n if (element === sentinel) {\n element = leavelist.pop();\n ret = this.__execute(visitor.leave, element);\n if (this.__state === BREAK || ret === BREAK) {\n return;\n }\n continue;\n }\n if (element.node) {\n ret = this.__execute(visitor.enter, element);\n if (this.__state === BREAK || ret === BREAK) {\n return;\n }\n worklist.push(sentinel);\n leavelist.push(element);\n if (this.__state === SKIP || ret === SKIP) {\n continue;\n }\n node = element.node;\n nodeType = element.wrap || node.type;\n candidates = VisitorKeys[nodeType];\n current = candidates.length;\n while ((current -= 1) >= 0) {\n key = candidates[current];\n candidate = node[key];\n if (!candidate) {\n continue;\n }\n if (!isArray(candidate)) {\n worklist.push(new Element(candidate, key, null, null));\n continue;\n }\n current2 = candidate.length;\n while ((current2 -= 1) >= 0) {\n if (!candidate[current2]) {\n continue;\n }\n if ((nodeType === Syntax.ObjectExpression || nodeType === Syntax.ObjectPattern) && 'properties' === candidates[current]) {\n element = new Element(candidate[current2], [\n key,\n current2\n ], 'Property', null);\n } else {\n element = new Element(candidate[current2], [\n key,\n current2\n ], null, null);\n }\n worklist.push(element);\n }\n }\n }\n }\n };\n Controller.prototype.replace = function replace(root, visitor) {\n var worklist, leavelist, node, nodeType, target, element, current, current2, candidates, candidate, sentinel, outer, key;\n this.__initialize(root, visitor);\n sentinel = {};\n worklist = this.__worklist;\n leavelist = this.__leavelist;\n outer = { root: root };\n element = new Element(root, null, null, new Reference(outer, 'root'));\n worklist.push(element);\n leavelist.push(element);\n while (worklist.length) {\n element = worklist.pop();\n if (element === sentinel) {\n element = leavelist.pop();\n target = this.__execute(visitor.leave, element);\n if (target !== undefined && target !== BREAK && target !== SKIP) {\n element.ref.replace(target);\n }\n if (this.__state === BREAK || target === BREAK) {\n return outer.root;\n }\n continue;\n }\n target = this.__execute(visitor.enter, element);\n if (target !== undefined && target !== BREAK && target !== SKIP) {\n element.ref.replace(target);\n element.node = target;\n }\n if (this.__state === BREAK || target === BREAK) {\n return outer.root;\n }\n node = element.node;\n if (!node) {\n continue;\n }\n worklist.push(sentinel);\n leavelist.push(element);\n if (this.__state === SKIP || target === SKIP) {\n continue;\n }\n nodeType = element.wrap || node.type;\n candidates = VisitorKeys[nodeType];\n current = candidates.length;\n while ((current -= 1) >= 0) {\n key = candidates[current];\n candidate = node[key];\n if (!candidate) {\n continue;\n }\n if (!isArray(candidate)) {\n worklist.push(new Element(candidate, key, null, new Reference(node, key)));\n continue;\n }\n current2 = candidate.length;\n while ((current2 -= 1) >= 0) {\n if (!candidate[current2]) {\n continue;\n }\n if (nodeType === Syntax.ObjectExpression && 'properties' === candidates[current]) {\n element = new Element(candidate[current2], [\n key,\n current2\n ], 'Property', new Reference(candidate, current2));\n } else {\n element = new Element(candidate[current2], [\n key,\n current2\n ], null, new Reference(candidate, current2));\n }\n worklist.push(element);\n }\n }\n }\n return outer.root;\n };\n function traverse(root, visitor) {\n var controller = new Controller;\n return controller.traverse(root, visitor);\n }\n function replace(root, visitor) {\n var controller = new Controller;\n return controller.replace(root, visitor);\n }\n function extendCommentRange(comment, tokens) {\n var target;\n target = upperBound(tokens, function search(token) {\n return token.range[0] > comment.range[0];\n });\n comment.extendedRange = [\n comment.range[0],\n comment.range[1]\n ];\n if (target !== tokens.length) {\n comment.extendedRange[1] = tokens[target].range[0];\n }\n target -= 1;\n if (target >= 0) {\n comment.extendedRange[0] = tokens[target].range[1];\n }\n return comment;\n }\n function attachComments(tree, providedComments, tokens) {\n var comments = [], comment, len, i, cursor;\n if (!tree.range) {\n throw new Error('attachComments needs range information');\n }\n if (!tokens.length) {\n if (providedComments.length) {\n for (i = 0, len = providedComments.length; i < len; i += 1) {\n comment = deepCopy(providedComments[i]);\n comment.extendedRange = [\n 0,\n tree.range[0]\n ];\n comments.push(comment);\n }\n tree.leadingComments = comments;\n }\n return tree;\n }\n for (i = 0, len = providedComments.length; i < len; i += 1) {\n comments.push(extendCommentRange(deepCopy(providedComments[i]), tokens));\n }\n cursor = 0;\n traverse(tree, {\n enter: function (node) {\n var comment;\n while (cursor < comments.length) {\n comment = comments[cursor];\n if (comment.extendedRange[1] > node.range[0]) {\n break;\n }\n if (comment.extendedRange[1] === node.range[0]) {\n if (!node.leadingComments) {\n node.leadingComments = [];\n }\n node.leadingComments.push(comment);\n comments.splice(cursor, 1);\n } else {\n cursor += 1;\n }\n }\n if (cursor === comments.length) {\n return VisitorOption.Break;\n }\n if (comments[cursor].extendedRange[0] > node.range[1]) {\n return VisitorOption.Skip;\n }\n }\n });\n cursor = 0;\n traverse(tree, {\n leave: function (node) {\n var comment;\n while (cursor < comments.length) {\n comment = comments[cursor];\n if (node.range[1] < comment.extendedRange[0]) {\n break;\n }\n if (node.range[1] === comment.extendedRange[0]) {\n if (!node.trailingComments) {\n node.trailingComments = [];\n }\n node.trailingComments.push(comment);\n comments.splice(cursor, 1);\n } else {\n cursor += 1;\n }\n }\n if (cursor === comments.length) {\n return VisitorOption.Break;\n }\n if (comments[cursor].extendedRange[0] > node.range[1]) {\n return VisitorOption.Skip;\n }\n }\n });\n return tree;\n }\n exports.version = '1.3.3-dev';\n exports.Syntax = Syntax;\n exports.traverse = traverse;\n exports.replace = replace;\n exports.attachComments = attachComments;\n exports.VisitorKeys = VisitorKeys;\n exports.VisitorOption = VisitorOption;\n exports.Controller = Controller;\n }));\n });\n require('/tools/entry-point.js');\n}.call(this, this));\n" }, { "path": "docs/editor/scripts/expander.js", "content": "/*\n Copyright (C) 2012 Tim Disney \n\n\n Redistribution and use in source and binary forms, with or without\n modification, are permitted provided that the following conditions are met:\n\n * Redistributions of source code must retain the above copyright\n notice, this list of conditions and the following disclaimer.\n * Redistributions in binary form must reproduce the above copyright\n notice, this list of conditions and the following disclaimer in the\n documentation and/or other materials provided with the distribution.\n\n THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\n AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\n IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\n ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY\n DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES\n (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;\n LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND\n ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT\n (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF\n THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n*/\n(function (root, factory) {\n if (typeof exports === 'object') {\n // CommonJS\n factory(exports, require('underscore'), require('./parser'), require('./syntax'), require('./scopedEval'), require('./patterns'), require('escodegen'));\n } else if (typeof define === 'function' && define.amd) {\n // AMD. Register as an anonymous module.\n define([\n 'exports',\n 'underscore',\n 'parser',\n 'syntax',\n 'scopedEval',\n 'patterns',\n 'escodegen'\n ], factory);\n }\n}(this, function (exports$2, _, parser, syn, se, patternModule, gen) {\n 'use strict';\n // escodegen still doesn't quite support AMD: https://github.com/Constellation/escodegen/issues/115\n var codegen = typeof escodegen !== 'undefined' ? escodegen : gen;\n var assert = syn.assert;\n var throwSyntaxError = syn.throwSyntaxError;\n var throwSyntaxCaseError = syn.throwSyntaxCaseError;\n var SyntaxCaseError = syn.SyntaxCaseError;\n var unwrapSyntax = syn.unwrapSyntax;\n // used to export \"private\" methods for unit testing\n exports$2._test = {};\n function StringMap(o) {\n this.__data = o || {};\n }\n StringMap.prototype = {\n has: function (key) {\n return Object.prototype.hasOwnProperty.call(this.__data, key);\n },\n get: function (key) {\n return this.has(key) ? this.__data[key] : void 0;\n },\n set: function (key, value) {\n this.__data[key] = value;\n },\n extend: function () {\n var args = _.map(_.toArray(arguments), function (x) {\n return x.__data;\n });\n _.extend.apply(_, [this.__data].concat(args));\n return this;\n }\n };\n var scopedEval = se.scopedEval;\n var Rename = syn.Rename;\n var Mark = syn.Mark;\n var Def = syn.Def;\n var syntaxFromToken = syn.syntaxFromToken;\n var joinSyntax = syn.joinSyntax;\n var builtinMode = false;\n var expandCount = 0;\n var maxExpands;\n var push = Array.prototype.push;\n function remdup(mark, mlist) {\n if (mark === _.first(mlist)) {\n return _.rest(mlist, 1);\n }\n return [mark].concat(mlist);\n }\n // (CSyntax) -> [...Num]\n function marksof(ctx, stopName, originalName) {\n while (ctx) {\n if (ctx.constructor === Mark) {\n return remdup(ctx.mark, marksof(ctx.context, stopName, originalName));\n }\n if (ctx.constructor === Def) {\n ctx = ctx.context;\n continue;\n }\n if (ctx.constructor === Rename) {\n if (stopName === originalName + '$' + ctx.name) {\n return [];\n }\n ctx = ctx.context;\n continue;\n }\n }\n return [];\n }\n function resolve(stx) {\n return resolveCtx(stx.token.value, stx.context, [], [], {});\n }\n // This call memoizes intermediate results in the recursive invocation.\n // The scope of the memo cache is the resolve() call, so that multiple\n // resolve() calls don't walk all over each other, and memory used for\n // the memoization can be garbage collected.\n //\n // The memoization addresses issue #232.\n //\n // It looks like the memoization uses only the context and doesn't look\n // at originalName, stop_spine and stop_branch arguments. This is valid\n // because whenever in every recursive call operates on a \"deeper\" or\n // else a newly created context. Therefore the collection of\n // [originalName, stop_spine, stop_branch] can all be associated with a\n // unique context. This argument is easier to see in a recursive\n // rewrite of the resolveCtx function than with the while loop\n // optimization - https://gist.github.com/srikumarks/9847260 - where the\n // recursive steps always operate on a different context.\n //\n // This might make it seem that the resolution results can be stored on\n // the context object itself, but that would not work in general\n // because multiple resolve() calls will walk over each other's cache\n // results, which fails tests. So the memoization uses only a context's\n // unique instance numbers as the memoization key and is local to each\n // resolve() call.\n //\n // With this memoization, the time complexity of the resolveCtx call is\n // no longer exponential for the cases in issue #232.\n function resolveCtx(originalName, ctx, stop_spine, stop_branch, cache) {\n if (!ctx) {\n return originalName;\n }\n var key = ctx.instNum;\n return cache[key] || (cache[key] = resolveCtxFull(originalName, ctx, stop_spine, stop_branch, cache));\n }\n // (Syntax) -> String\n function resolveCtxFull(originalName, ctx, stop_spine, stop_branch, cache) {\n while (true) {\n if (!ctx) {\n return originalName;\n }\n if (ctx.constructor === Mark) {\n ctx = ctx.context;\n continue;\n }\n if (ctx.constructor === Def) {\n if (stop_spine.indexOf(ctx.defctx) !== -1) {\n ctx = ctx.context;\n continue;\n } else {\n stop_branch = unionEl(stop_branch, ctx.defctx);\n ctx = renames(ctx.defctx, ctx.context, originalName);\n continue;\n }\n }\n if (ctx.constructor === Rename) {\n if (originalName === ctx.id.token.value) {\n var idName = resolveCtx(ctx.id.token.value, ctx.id.context, stop_branch, stop_branch, cache);\n var subName = resolveCtx(originalName, ctx.context, unionEl(stop_spine, ctx.def), stop_branch, cache);\n if (idName === subName) {\n var idMarks = marksof(ctx.id.context, originalName + '$' + ctx.name, originalName);\n var subMarks = marksof(ctx.context, originalName + '$' + ctx.name, originalName);\n if (arraysEqual(idMarks, subMarks)) {\n return originalName + '$' + ctx.name;\n }\n }\n }\n ctx = ctx.context;\n continue;\n }\n return originalName;\n }\n }\n function arraysEqual(a, b) {\n if (a.length !== b.length) {\n return false;\n }\n for (var i = 0; i < a.length; i++) {\n if (a[i] !== b[i]) {\n return false;\n }\n }\n return true;\n }\n function renames(defctx, oldctx, originalName) {\n var acc = oldctx;\n for (var i = 0; i < defctx.length; i++) {\n if (defctx[i].id.token.value === originalName) {\n acc = new Rename(defctx[i].id, defctx[i].name, acc, defctx);\n }\n }\n return acc;\n }\n function unionEl(arr, el) {\n if (arr.indexOf(el) === -1) {\n var res = arr.slice(0);\n res.push(el);\n return res;\n }\n return arr;\n }\n var nextFresh = 0;\n // fun () -> Num\n function fresh() {\n return nextFresh++;\n }\n // wraps the array of syntax objects in the delimiters given by the second argument\n // ([...CSyntax], CSyntax) -> [...CSyntax]\n function wrapDelim(towrap, delimSyntax) {\n assert(delimSyntax.token.type === parser.Token.Delimiter, 'expecting a delimiter token');\n return syntaxFromToken({\n type: parser.Token.Delimiter,\n value: delimSyntax.token.value,\n inner: towrap,\n range: delimSyntax.token.range,\n startLineNumber: delimSyntax.token.startLineNumber,\n lineStart: delimSyntax.token.lineStart\n }, delimSyntax);\n }\n // (CSyntax) -> [...CSyntax]\n function getParamIdentifiers(argSyntax) {\n if (argSyntax.token.type === parser.Token.Delimiter) {\n return _.filter(argSyntax.token.inner, function (stx) {\n return stx.token.value !== ',';\n });\n } else if (argSyntax.token.type === parser.Token.Identifier) {\n return [argSyntax];\n } else {\n assert(false, 'expecting a delimiter or a single identifier for function parameters');\n }\n }\n function inherit(parent, child, methods) {\n var P = function () {\n };\n P.prototype = parent.prototype;\n child.prototype = new P();\n child.prototype.constructor = child;\n _.extend(child.prototype, methods);\n }\n // A TermTree is the core data structure for the macro expansion process.\n // It acts as a semi-structured representation of the syntax.\n function TermTree() {\n }\n TermTree.properties = [];\n TermTree.create = function () {\n return new TermTree();\n };\n TermTree.prototype = {\n 'isTermTree': true,\n 'destruct': function () {\n var self = this;\n return _.reduce(this.constructor.properties, function (acc, prop) {\n if (self[prop] && self[prop].isTermTree) {\n push.apply(acc, self[prop].destruct());\n return acc;\n } else if (self[prop] && self[prop].token && self[prop].token.inner) {\n var src = self[prop].token;\n var keys = Object.keys(src);\n var newtok = {};\n for (var i = 0, len = keys.length, key; i < len; i++) {\n key = keys[i];\n newtok[key] = src[key];\n }\n var clone = syntaxFromToken(newtok, self[prop]);\n clone.token.inner = _.reduce(clone.token.inner, function (acc$2, t) {\n if (t && t.isTermTree) {\n push.apply(acc$2, t.destruct());\n return acc$2;\n }\n acc$2.push(t);\n return acc$2;\n }, []);\n acc.push(clone);\n return acc;\n } else if (Array.isArray(self[prop])) {\n var destArr = _.reduce(self[prop], function (acc$2, t) {\n if (t && t.isTermTree) {\n push.apply(acc$2, t.destruct());\n return acc$2;\n }\n acc$2.push(t);\n return acc$2;\n }, []);\n push.apply(acc, destArr);\n return acc;\n } else if (self[prop]) {\n acc.push(self[prop]);\n return acc;\n } else {\n return acc;\n }\n }, []);\n },\n 'addDefCtx': function (def) {\n var self = this;\n _.each(this.constructor.properties, function (prop) {\n if (Array.isArray(self[prop])) {\n self[prop] = _.map(self[prop], function (item) {\n return item.addDefCtx(def);\n });\n } else if (self[prop]) {\n self[prop] = self[prop].addDefCtx(def);\n }\n });\n return this;\n },\n 'rename': function (id, name) {\n var self = this;\n _.each(this.constructor.properties, function (prop) {\n if (Array.isArray(self[prop])) {\n self[prop] = _.map(self[prop], function (item) {\n return item.rename(id, name);\n });\n } else if (self[prop]) {\n self[prop] = self[prop].rename(id, name);\n }\n });\n return this;\n }\n };\n function EOF(eof) {\n this.eof = eof;\n }\n EOF.properties = ['eof'];\n EOF.create = function (eof) {\n return new EOF(eof);\n };\n inherit(TermTree, EOF, { 'isEOF': true });\n function Keyword(keyword) {\n this.keyword = keyword;\n }\n Keyword.properties = ['keyword'];\n Keyword.create = function (keyword) {\n return new Keyword(keyword);\n };\n inherit(TermTree, Keyword, { 'isKeyword': true });\n function Punc(punc) {\n this.punc = punc;\n }\n Punc.properties = ['punc'];\n Punc.create = function (punc) {\n return new Punc(punc);\n };\n inherit(TermTree, Punc, { 'isPunc': true });\n function Delimiter(delim) {\n this.delim = delim;\n }\n Delimiter.properties = ['delim'];\n Delimiter.create = function (delim) {\n return new Delimiter(delim);\n };\n inherit(TermTree, Delimiter, { 'isDelimiter': true });\n function LetMacro(name, body) {\n this.name = name;\n this.body = body;\n }\n LetMacro.properties = [\n 'name',\n 'body'\n ];\n LetMacro.create = function (name, body) {\n return new LetMacro(name, body);\n };\n inherit(TermTree, LetMacro, { 'isLetMacro': true });\n function Macro(name, body) {\n this.name = name;\n this.body = body;\n }\n Macro.properties = [\n 'name',\n 'body'\n ];\n Macro.create = function (name, body) {\n return new Macro(name, body);\n };\n inherit(TermTree, Macro, { 'isMacro': true });\n function AnonMacro(body) {\n this.body = body;\n }\n AnonMacro.properties = ['body'];\n AnonMacro.create = function (body) {\n return new AnonMacro(body);\n };\n inherit(TermTree, AnonMacro, { 'isAnonMacro': true });\n function OperatorDefinition(type, name, prec, assoc, body) {\n this.type = type;\n this.name = name;\n this.prec = prec;\n this.assoc = assoc;\n this.body = body;\n }\n OperatorDefinition.properties = [\n 'type',\n 'name',\n 'prec',\n 'assoc',\n 'body'\n ];\n OperatorDefinition.create = function (type, name, prec, assoc, body) {\n return new OperatorDefinition(type, name, prec, assoc, body);\n };\n inherit(TermTree, OperatorDefinition, { 'isOperatorDefinition': true });\n function Module(body, exports$3) {\n this.body = body;\n this.exports = exports$3;\n }\n Module.properties = [\n 'body',\n 'exports'\n ];\n Module.create = function (body, exports$3) {\n return new Module(body, exports$3);\n };\n inherit(TermTree, Module, { 'isModule': true });\n function Export(name) {\n this.name = name;\n }\n Export.properties = ['name'];\n Export.create = function (name) {\n return new Export(name);\n };\n inherit(TermTree, Export, { 'isExport': true });\n function VariableDeclaration(ident, eq, init, comma) {\n this.ident = ident;\n this.eq = eq;\n this.init = init;\n this.comma = comma;\n }\n VariableDeclaration.properties = [\n 'ident',\n 'eq',\n 'init',\n 'comma'\n ];\n VariableDeclaration.create = function (ident, eq, init, comma) {\n return new VariableDeclaration(ident, eq, init, comma);\n };\n inherit(TermTree, VariableDeclaration, { 'isVariableDeclaration': true });\n function Statement() {\n }\n Statement.properties = [];\n Statement.create = function () {\n return new Statement();\n };\n inherit(TermTree, Statement, { 'isStatement': true });\n function Empty() {\n }\n Empty.properties = [];\n Empty.create = function () {\n return new Empty();\n };\n inherit(Statement, Empty, { 'isEmpty': true });\n function CatchClause(keyword, params, body) {\n this.keyword = keyword;\n this.params = params;\n this.body = body;\n }\n CatchClause.properties = [\n 'keyword',\n 'params',\n 'body'\n ];\n CatchClause.create = function (keyword, params, body) {\n return new CatchClause(keyword, params, body);\n };\n inherit(Statement, CatchClause, { 'isCatchClause': true });\n function ForStatement(keyword, cond) {\n this.keyword = keyword;\n this.cond = cond;\n }\n ForStatement.properties = [\n 'keyword',\n 'cond'\n ];\n ForStatement.create = function (keyword, cond) {\n return new ForStatement(keyword, cond);\n };\n inherit(Statement, ForStatement, { 'isForStatement': true });\n function Expr() {\n }\n Expr.properties = [];\n Expr.create = function () {\n return new Expr();\n };\n inherit(Statement, Expr, { 'isExpr': true });\n function UnaryOp(op, expr) {\n this.op = op;\n this.expr = expr;\n }\n UnaryOp.properties = [\n 'op',\n 'expr'\n ];\n UnaryOp.create = function (op, expr) {\n return new UnaryOp(op, expr);\n };\n inherit(Expr, UnaryOp, { 'isUnaryOp': true });\n function PostfixOp(expr, op) {\n this.expr = expr;\n this.op = op;\n }\n PostfixOp.properties = [\n 'expr',\n 'op'\n ];\n PostfixOp.create = function (expr, op) {\n return new PostfixOp(expr, op);\n };\n inherit(Expr, PostfixOp, { 'isPostfixOp': true });\n function BinOp(left, op, right) {\n this.left = left;\n this.op = op;\n this.right = right;\n }\n BinOp.properties = [\n 'left',\n 'op',\n 'right'\n ];\n BinOp.create = function (left, op, right) {\n return new BinOp(left, op, right);\n };\n inherit(Expr, BinOp, { 'isBinOp': true });\n function AssignmentExpression(left, op, right) {\n this.left = left;\n this.op = op;\n this.right = right;\n }\n AssignmentExpression.properties = [\n 'left',\n 'op',\n 'right'\n ];\n AssignmentExpression.create = function (left, op, right) {\n return new AssignmentExpression(left, op, right);\n };\n inherit(Expr, AssignmentExpression, { 'isAssignmentExpression': true });\n function ConditionalExpression(cond, question, tru, colon, fls) {\n this.cond = cond;\n this.question = question;\n this.tru = tru;\n this.colon = colon;\n this.fls = fls;\n }\n ConditionalExpression.properties = [\n 'cond',\n 'question',\n 'tru',\n 'colon',\n 'fls'\n ];\n ConditionalExpression.create = function (cond, question, tru, colon, fls) {\n return new ConditionalExpression(cond, question, tru, colon, fls);\n };\n inherit(Expr, ConditionalExpression, { 'isConditionalExpression': true });\n function NamedFun(keyword, star, name, params, body) {\n this.keyword = keyword;\n this.star = star;\n this.name = name;\n this.params = params;\n this.body = body;\n }\n NamedFun.properties = [\n 'keyword',\n 'star',\n 'name',\n 'params',\n 'body'\n ];\n NamedFun.create = function (keyword, star, name, params, body) {\n return new NamedFun(keyword, star, name, params, body);\n };\n inherit(Expr, NamedFun, { 'isNamedFun': true });\n function AnonFun(keyword, star, params, body) {\n this.keyword = keyword;\n this.star = star;\n this.params = params;\n this.body = body;\n }\n AnonFun.properties = [\n 'keyword',\n 'star',\n 'params',\n 'body'\n ];\n AnonFun.create = function (keyword, star, params, body) {\n return new AnonFun(keyword, star, params, body);\n };\n inherit(Expr, AnonFun, { 'isAnonFun': true });\n function ArrowFun(params, arrow, body) {\n this.params = params;\n this.arrow = arrow;\n this.body = body;\n }\n ArrowFun.properties = [\n 'params',\n 'arrow',\n 'body'\n ];\n ArrowFun.create = function (params, arrow, body) {\n return new ArrowFun(params, arrow, body);\n };\n inherit(Expr, ArrowFun, { 'isArrowFun': true });\n function Const(keyword, call) {\n this.keyword = keyword;\n this.call = call;\n }\n Const.properties = [\n 'keyword',\n 'call'\n ];\n Const.create = function (keyword, call) {\n return new Const(keyword, call);\n };\n inherit(Expr, Const, { 'isConst': true });\n function ObjDotGet(left, dot, right) {\n this.left = left;\n this.dot = dot;\n this.right = right;\n }\n ObjDotGet.properties = [\n 'left',\n 'dot',\n 'right'\n ];\n ObjDotGet.create = function (left, dot, right) {\n return new ObjDotGet(left, dot, right);\n };\n inherit(Expr, ObjDotGet, { 'isObjDotGet': true });\n function ObjGet(left, right) {\n this.left = left;\n this.right = right;\n }\n ObjGet.properties = [\n 'left',\n 'right'\n ];\n ObjGet.create = function (left, right) {\n return new ObjGet(left, right);\n };\n inherit(Expr, ObjGet, { 'isObjGet': true });\n function YieldExpression(keyword, expr) {\n this.keyword = keyword;\n this.expr = expr;\n }\n YieldExpression.properties = [\n 'keyword',\n 'expr'\n ];\n YieldExpression.create = function (keyword, expr) {\n return new YieldExpression(keyword, expr);\n };\n inherit(Expr, YieldExpression, { 'isYieldExpression': true });\n function Template(template) {\n this.template = template;\n }\n Template.properties = ['template'];\n Template.create = function (template) {\n return new Template(template);\n };\n inherit(Expr, Template, { 'isTemplate': true });\n function PrimaryExpression() {\n }\n PrimaryExpression.properties = [];\n PrimaryExpression.create = function () {\n return new PrimaryExpression();\n };\n inherit(Expr, PrimaryExpression, { 'isPrimaryExpression': true });\n function ThisExpression(keyword) {\n this.keyword = keyword;\n }\n ThisExpression.properties = ['keyword'];\n ThisExpression.create = function (keyword) {\n return new ThisExpression(keyword);\n };\n inherit(PrimaryExpression, ThisExpression, { 'isThisExpression': true });\n function Lit(lit) {\n this.lit = lit;\n }\n Lit.properties = ['lit'];\n Lit.create = function (lit) {\n return new Lit(lit);\n };\n inherit(PrimaryExpression, Lit, { 'isLit': true });\n function Block(body) {\n this.body = body;\n }\n Block.properties = ['body'];\n Block.create = function (body) {\n return new Block(body);\n };\n inherit(PrimaryExpression, Block, { 'isBlock': true });\n function ArrayLiteral(array) {\n this.array = array;\n }\n ArrayLiteral.properties = ['array'];\n ArrayLiteral.create = function (array) {\n return new ArrayLiteral(array);\n };\n inherit(PrimaryExpression, ArrayLiteral, { 'isArrayLiteral': true });\n function ParenExpression(expr) {\n this.expr = expr;\n }\n ParenExpression.properties = ['expr'];\n ParenExpression.create = function (expr) {\n return new ParenExpression(expr);\n };\n inherit(PrimaryExpression, ParenExpression, { 'isParenExpression': true });\n function Id(id) {\n this.id = id;\n }\n Id.properties = ['id'];\n Id.create = function (id) {\n return new Id(id);\n };\n inherit(PrimaryExpression, Id, { 'isId': true });\n function Partial() {\n }\n Partial.properties = [];\n Partial.create = function () {\n return new Partial();\n };\n inherit(TermTree, Partial, { 'isPartial': true });\n function PartialOperation(stx, left) {\n this.stx = stx;\n this.left = left;\n }\n PartialOperation.properties = [\n 'stx',\n 'left'\n ];\n PartialOperation.create = function (stx, left) {\n return new PartialOperation(stx, left);\n };\n inherit(Partial, PartialOperation, { 'isPartialOperation': true });\n function PartialExpression(stx, left, combine) {\n this.stx = stx;\n this.left = left;\n this.combine = combine;\n }\n PartialExpression.properties = [\n 'stx',\n 'left',\n 'combine'\n ];\n PartialExpression.create = function (stx, left, combine) {\n return new PartialExpression(stx, left, combine);\n };\n inherit(Partial, PartialExpression, { 'isPartialExpression': true });\n function BindingStatement(keyword, decls) {\n this.keyword = keyword;\n this.decls = decls;\n }\n BindingStatement.properties = [\n 'keyword',\n 'decls'\n ];\n BindingStatement.create = function (keyword, decls) {\n return new BindingStatement(keyword, decls);\n };\n inherit(Statement, BindingStatement, {\n 'isBindingStatement': true,\n 'destruct': function () {\n return this.keyword.destruct().concat(_.reduce(this.decls, function (acc, decl) {\n push.apply(acc, decl.destruct());\n return acc;\n }, []));\n }\n });\n function VariableStatement(keyword, decls) {\n this.keyword = keyword;\n this.decls = decls;\n }\n VariableStatement.properties = [\n 'keyword',\n 'decls'\n ];\n VariableStatement.create = function (keyword, decls) {\n return new VariableStatement(keyword, decls);\n };\n inherit(BindingStatement, VariableStatement, { 'isVariableStatement': true });\n function LetStatement(keyword, decls) {\n this.keyword = keyword;\n this.decls = decls;\n }\n LetStatement.properties = [\n 'keyword',\n 'decls'\n ];\n LetStatement.create = function (keyword, decls) {\n return new LetStatement(keyword, decls);\n };\n inherit(BindingStatement, LetStatement, { 'isLetStatement': true });\n function ConstStatement(keyword, decls) {\n this.keyword = keyword;\n this.decls = decls;\n }\n ConstStatement.properties = [\n 'keyword',\n 'decls'\n ];\n ConstStatement.create = function (keyword, decls) {\n return new ConstStatement(keyword, decls);\n };\n inherit(BindingStatement, ConstStatement, { 'isConstStatement': true });\n function Call(fun, args, delim, commas) {\n this.fun = fun;\n this.args = args;\n this.delim = delim;\n this.commas = commas;\n }\n Call.properties = [\n 'fun',\n 'args',\n 'delim',\n 'commas'\n ];\n Call.create = function (fun, args, delim, commas) {\n return new Call(fun, args, delim, commas);\n };\n inherit(Expr, Call, {\n 'isCall': true,\n 'destruct': function () {\n assert(this.fun.isTermTree, 'expecting a term tree in destruct of call');\n var commas = this.commas.slice();\n var src = this.delim.token;\n var keys = Object.keys(src);\n var newtok = {};\n for (var i = 0, len = keys.length, key; i < len; i++) {\n key = keys[i];\n newtok[key] = src[key];\n }\n var delim = syntaxFromToken(newtok, this.delim);\n delim.token.inner = _.reduce(this.args, function (acc, term) {\n assert(term && term.isTermTree, 'expecting term trees in destruct of Call');\n push.apply(acc, term.destruct());\n // add all commas except for the last one\n if (commas.length > 0) {\n acc.push(commas.shift());\n }\n return acc;\n }, []);\n var res = this.fun.destruct();\n push.apply(res, Delimiter.create(delim).destruct());\n return res;\n }\n });\n function stxIsUnaryOp(stx) {\n var staticOperators = [\n '+',\n '-',\n '~',\n '!',\n 'delete',\n 'void',\n 'typeof',\n '++',\n '--'\n ];\n return _.contains(staticOperators, unwrapSyntax(stx));\n }\n function stxIsBinOp(stx) {\n var staticOperators = [\n '+',\n '-',\n '*',\n '/',\n '%',\n '||',\n '&&',\n '|',\n '&',\n '^',\n '==',\n '!=',\n '===',\n '!==',\n '<',\n '>',\n '<=',\n '>=',\n 'in',\n 'instanceof',\n '<<',\n '>>',\n '>>>'\n ];\n return _.contains(staticOperators, unwrapSyntax(stx));\n }\n function getUnaryOpPrec(op) {\n var operatorPrecedence = {\n 'new': 16,\n '++': 15,\n '--': 15,\n '!': 14,\n '~': 14,\n '+': 14,\n '-': 14,\n 'typeof': 14,\n 'void': 14,\n 'delete': 14,\n 'yield': 2\n };\n return operatorPrecedence[op];\n }\n function getBinaryOpPrec(op) {\n var operatorPrecedence = {\n '*': 13,\n '/': 13,\n '%': 13,\n '+': 12,\n '-': 12,\n '>>': 11,\n '<<': 11,\n '>>>': 11,\n '<': 10,\n '<=': 10,\n '>': 10,\n '>=': 10,\n 'in': 10,\n 'instanceof': 10,\n '==': 9,\n '!=': 9,\n '===': 9,\n '!==': 9,\n '&': 8,\n '^': 7,\n '|': 6,\n '&&': 5,\n '||': 4\n };\n return operatorPrecedence[op];\n }\n function getBinaryOpAssoc(op) {\n var operatorAssoc = {\n '*': 'left',\n '/': 'left',\n '%': 'left',\n '+': 'left',\n '-': 'left',\n '>>': 'left',\n '<<': 'left',\n '>>>': 'left',\n '<': 'left',\n '<=': 'left',\n '>': 'left',\n '>=': 'left',\n 'in': 'left',\n 'instanceof': 'left',\n '==': 'left',\n '!=': 'left',\n '===': 'left',\n '!==': 'left',\n '&': 'left',\n '^': 'left',\n '|': 'left',\n '&&': 'left',\n '||': 'left'\n };\n return operatorAssoc[op];\n }\n function stxIsAssignOp(stx) {\n var staticOperators = [\n '=',\n '+=',\n '-=',\n '*=',\n '/=',\n '%=',\n '<<=',\n '>>=',\n '>>>=',\n '|=',\n '^=',\n '&='\n ];\n return _.contains(staticOperators, unwrapSyntax(stx));\n }\n function enforestVarStatement(stx, context, varStx) {\n var decls = [];\n var rest = stx;\n var rhs;\n if (!rest.length) {\n throwSyntaxError('enforest', 'Unexpected end of input', varStx);\n }\n if (expandCount >= maxExpands) {\n return null;\n }\n while (rest.length) {\n if (rest[0].token.type === parser.Token.Identifier) {\n if (rest[1] && rest[1].token.type === parser.Token.Punctuator && rest[1].token.value === '=') {\n rhs = get_expression(rest.slice(2), context);\n if (rhs.result == null) {\n throwSyntaxError('enforest', 'Unexpected token', rhs.rest[0]);\n }\n if (rhs.rest[0].token.type === parser.Token.Punctuator && rhs.rest[0].token.value === ',') {\n decls.push(VariableDeclaration.create(rest[0], rest[1], rhs.result, rhs.rest[0]));\n rest = rhs.rest.slice(1);\n continue;\n } else {\n decls.push(VariableDeclaration.create(rest[0], rest[1], rhs.result, null));\n rest = rhs.rest;\n break;\n }\n } else if (rest[1] && rest[1].token.type === parser.Token.Punctuator && rest[1].token.value === ',') {\n decls.push(VariableDeclaration.create(rest[0], null, null, rest[1]));\n rest = rest.slice(2);\n } else {\n decls.push(VariableDeclaration.create(rest[0], null, null, null));\n rest = rest.slice(1);\n break;\n }\n } else {\n throwSyntaxError('enforest', 'Unexpected token', rest[0]);\n }\n }\n return {\n result: decls,\n rest: rest\n };\n }\n function enforestAssignment(stx, context, left, prevStx, prevTerms) {\n var op = stx[0];\n var rightStx = stx.slice(1);\n var opTerm = Punc.create(stx[0]);\n var opPrevStx = tagWithTerm(opTerm, [stx[0]]).concat(tagWithTerm(left, left.destruct().reverse()), prevStx);\n var opPrevTerms = [\n opTerm,\n left\n ].concat(prevTerms);\n var opRes = enforest(rightStx, context, opPrevStx, opPrevTerms);\n if (opRes.result) {\n // Lookbehind was matched, so it may not even be a binop anymore.\n if (opRes.prevTerms.length < opPrevTerms.length) {\n return opRes;\n }\n var right = opRes.result;\n // only a binop if the right is a real expression\n // so 2+2++ will only match 2+2\n if (right.isExpr) {\n var term = AssignmentExpression.create(left, op, right);\n return {\n result: term,\n rest: opRes.rest,\n prevStx: prevStx,\n prevTerms: prevTerms\n };\n }\n } else {\n return opRes;\n }\n }\n function adjustLineContext(stx, original, current) {\n current = current || {\n lastLineNumber: original.token.lineNumber,\n lineNumber: original.token.lineNumber - 1\n };\n return _.map(stx, function (stx$2) {\n if (stx$2.token.type === parser.Token.Delimiter) {\n // handle tokens with missing line info\n stx$2.token.startLineNumber = typeof stx$2.token.startLineNumber == 'undefined' ? original.token.lineNumber : stx$2.token.startLineNumber;\n stx$2.token.endLineNumber = typeof stx$2.token.endLineNumber == 'undefined' ? original.token.lineNumber : stx$2.token.endLineNumber;\n stx$2.token.startLineStart = typeof stx$2.token.startLineStart == 'undefined' ? original.token.lineStart : stx$2.token.startLineStart;\n stx$2.token.endLineStart = typeof stx$2.token.endLineStart == 'undefined' ? original.token.lineStart : stx$2.token.endLineStart;\n stx$2.token.startRange = typeof stx$2.token.startRange == 'undefined' ? original.token.range : stx$2.token.startRange;\n stx$2.token.endRange = typeof stx$2.token.endRange == 'undefined' ? original.token.range : stx$2.token.endRange;\n stx$2.token.sm_startLineNumber = typeof stx$2.token.sm_startLineNumber == 'undefined' ? stx$2.token.startLineNumber : stx$2.token.sm_startLineNumber;\n stx$2.token.sm_endLineNumber = typeof stx$2.token.sm_endLineNumber == 'undefined' ? stx$2.token.endLineNumber : stx$2.token.sm_endLineNumber;\n stx$2.token.sm_startLineStart = typeof stx$2.token.sm_startLineStart == 'undefined' ? stx$2.token.startLineStart : stx$2.token.sm_startLineStart;\n stx$2.token.sm_endLineStart = typeof stx$2.token.sm_endLineStart == 'undefined' ? stx$2.token.endLineStart : stx$2.token.sm_endLineStart;\n stx$2.token.sm_startRange = typeof stx$2.token.sm_startRange == 'undefined' ? stx$2.token.startRange : stx$2.token.sm_startRange;\n stx$2.token.sm_endRange = typeof stx$2.token.sm_endRange == 'undefined' ? stx$2.token.endRange : stx$2.token.sm_endRange;\n if (stx$2.token.startLineNumber === current.lastLineNumber && current.lastLineNumber !== current.lineNumber) {\n stx$2.token.startLineNumber = current.lineNumber;\n } else if (stx$2.token.startLineNumber !== current.lastLineNumber) {\n current.lineNumber++;\n current.lastLineNumber = stx$2.token.startLineNumber;\n stx$2.token.startLineNumber = current.lineNumber;\n }\n if (stx$2.token.inner.length > 0) {\n stx$2.token.inner = adjustLineContext(stx$2.token.inner, original, current);\n }\n return stx$2;\n }\n // handle tokens with missing line info\n stx$2.token.lineNumber = typeof stx$2.token.lineNumber == 'undefined' ? original.token.lineNumber : stx$2.token.lineNumber;\n stx$2.token.lineStart = typeof stx$2.token.lineStart == 'undefined' ? original.token.lineStart : stx$2.token.lineStart;\n stx$2.token.range = typeof stx$2.token.range == 'undefined' ? original.token.range : stx$2.token.range;\n // Only set the sourcemap line info once. Necessary because a single\n // syntax object can go through expansion multiple times. If at some point\n // we want to write an expansion stepper this might be a good place to store\n // intermediate expansion line info (ie push to a stack instead of\n // just write once).\n stx$2.token.sm_lineNumber = typeof stx$2.token.sm_lineNumber == 'undefined' ? stx$2.token.lineNumber : stx$2.token.sm_lineNumber;\n stx$2.token.sm_lineStart = typeof stx$2.token.sm_lineStart == 'undefined' ? stx$2.token.lineStart : stx$2.token.sm_lineStart;\n stx$2.token.sm_range = typeof stx$2.token.sm_range == 'undefined' ? stx$2.token.range.slice() : stx$2.token.sm_range;\n // move the line info to line up with the macro name\n // (line info starting from the macro name)\n if (stx$2.token.lineNumber === current.lastLineNumber && current.lastLineNumber !== current.lineNumber) {\n stx$2.token.lineNumber = current.lineNumber;\n } else if (stx$2.token.lineNumber !== current.lastLineNumber) {\n current.lineNumber++;\n current.lastLineNumber = stx$2.token.lineNumber;\n stx$2.token.lineNumber = current.lineNumber;\n }\n return stx$2;\n });\n }\n function getName(head, rest) {\n var idx = 0;\n var curr = head;\n var next = rest[idx];\n var name = [head];\n while (true) {\n if (next && (next.token.type === parser.Token.Punctuator || next.token.type === parser.Token.Identifier || next.token.type === parser.Token.Keyword) && curr.token.range[1] === next.token.range[0]) {\n name.push(next);\n curr = next;\n next = rest[++idx];\n } else {\n return name;\n }\n }\n }\n function getMacroInEnv(head, rest, env) {\n if (!(head.token.type === parser.Token.Identifier || head.token.type === parser.Token.Keyword || head.token.type === parser.Token.Punctuator)) {\n return null;\n }\n var name = getName(head, rest);\n // simple case, don't need to create a new syntax object\n if (name.length === 1) {\n if (env.names.get(unwrapSyntax(name[0]))) {\n var resolvedName = resolve(name[0]);\n if (env.has(resolvedName)) {\n return env.get(resolvedName);\n }\n }\n return null;\n } else {\n while (name.length > 0) {\n var nameStr = name.map(unwrapSyntax).join('');\n if (env.names.get(nameStr)) {\n var nameStx = syn.makeIdent(nameStr, name[0]);\n var resolvedName = resolve(nameStx);\n if (env.has(resolvedName)) {\n return env.get(resolvedName);\n }\n }\n name.pop();\n }\n return null;\n }\n }\n function nameInEnv(head, rest, env) {\n return getMacroInEnv(head, rest, env) !== null;\n }\n // This should only be used on things that can't be rebound except by\n // macros (puncs, keywords).\n function resolveFast(stx, env) {\n var name = unwrapSyntax(stx);\n return env.names.get(name) ? resolve(stx) : name;\n }\n function expandMacro(stx, context, opCtx, opType, macroObj) {\n // pull the macro transformer out the environment\n var head = stx[0];\n var rest = stx.slice(1);\n macroObj = macroObj || getMacroInEnv(head, rest, context.env);\n var stxArg = rest.slice(macroObj.fullName.length - 1);\n var transformer;\n if (opType != null) {\n assert(opType === 'binary' || opType === 'unary', 'operator type should be either unary or binary: ' + opType);\n transformer = macroObj[opType].fn;\n } else {\n transformer = macroObj.fn;\n }\n // create a new mark to be used for the input to\n // the macro\n var newMark = fresh();\n var transformerContext = makeExpanderContext(_.defaults({ mark: newMark }, context));\n // apply the transformer\n var rt;\n try {\n rt = transformer([head].concat(stxArg), transformerContext, opCtx.prevStx, opCtx.prevTerms);\n } catch (e) {\n if (e instanceof SyntaxCaseError) {\n // add a nicer error for syntax case\n var nameStr = macroObj.fullName.map(function (stx$2) {\n return stx$2.token.value;\n }).join('');\n if (opType != null) {\n var argumentString = '`' + stxArg.slice(0, 5).map(function (stx$2) {\n return stx$2.token.value;\n }).join(' ') + '...`';\n throwSyntaxError('operator', 'Operator `' + nameStr + '` could not be matched with ' + argumentString, head);\n } else {\n var argumentString = '`' + stxArg.slice(0, 5).map(function (stx$2) {\n return stx$2.token.value;\n }).join(' ') + '...`';\n throwSyntaxError('macro', 'Macro `' + nameStr + '` could not be matched with ' + argumentString, head);\n }\n } else {\n // just rethrow it\n throw e;\n }\n }\n if (!builtinMode && !macroObj.builtin) {\n expandCount++;\n }\n if (!Array.isArray(rt.result)) {\n throwSyntaxError('enforest', 'Macro must return a syntax array', stx[0]);\n }\n if (rt.result.length > 0) {\n var adjustedResult = adjustLineContext(rt.result, head);\n if (stx[0].token.leadingComments) {\n if (adjustedResult[0].token.leadingComments) {\n adjustedResult[0].token.leadingComments = adjustedResult[0].token.leadingComments.concat(head.token.leadingComments);\n } else {\n adjustedResult[0].token.leadingComments = head.token.leadingComments;\n }\n }\n rt.result = adjustedResult;\n }\n return rt;\n }\n function comparePrec(left, right, assoc) {\n if (assoc === 'left') {\n return left <= right;\n }\n return left < right;\n }\n // enforest the tokens, returns an object with the `result` TermTree and\n // the uninterpreted `rest` of the syntax\n function enforest(toks, context, prevStx, prevTerms) {\n assert(toks.length > 0, 'enforest assumes there are tokens to work with');\n prevStx = prevStx || [];\n prevTerms = prevTerms || [];\n if (expandCount >= maxExpands) {\n return {\n result: null,\n rest: toks\n };\n }\n function step(head, rest, opCtx) {\n var innerTokens;\n assert(Array.isArray(rest), 'result must at least be an empty array');\n if (head.isTermTree) {\n var isCustomOp = false;\n var uopMacroObj;\n var uopSyntax;\n if (head.isPunc || head.isKeyword || head.isId) {\n if (head.isPunc) {\n uopSyntax = head.punc;\n } else if (head.isKeyword) {\n uopSyntax = head.keyword;\n } else if (head.isId) {\n uopSyntax = head.id;\n }\n uopMacroObj = getMacroInEnv(uopSyntax, rest, context.env);\n isCustomOp = uopMacroObj && uopMacroObj.isOp;\n }\n // look up once (we want to check multiple properties on bopMacroObj\n // without repeatedly calling getMacroInEnv)\n var bopMacroObj;\n if (rest[0] && rest[1]) {\n bopMacroObj = getMacroInEnv(rest[0], rest.slice(1), context.env);\n }\n // unary operator\n if (isCustomOp && uopMacroObj.unary || uopSyntax && stxIsUnaryOp(uopSyntax)) {\n var uopPrec;\n if (isCustomOp && uopMacroObj.unary) {\n uopPrec = uopMacroObj.unary.prec;\n } else {\n uopPrec = getUnaryOpPrec(unwrapSyntax(uopSyntax));\n }\n var opRest = rest;\n var uopMacroName;\n if (uopMacroObj) {\n uopMacroName = [uopSyntax].concat(rest.slice(0, uopMacroObj.fullName.length - 1));\n opRest = rest.slice(uopMacroObj.fullName.length - 1);\n }\n var leftLeft = opCtx.prevTerms[0] && opCtx.prevTerms[0].isPartial ? opCtx.prevTerms[0] : null;\n var unopTerm = PartialOperation.create(head, leftLeft);\n var unopPrevStx = tagWithTerm(unopTerm, head.destruct().reverse()).concat(opCtx.prevStx);\n var unopPrevTerms = [unopTerm].concat(opCtx.prevTerms);\n var unopOpCtx = _.extend({}, opCtx, {\n combine: function (t) {\n if (t.isExpr) {\n if (isCustomOp && uopMacroObj.unary) {\n var rt$2 = expandMacro(uopMacroName.concat(t.destruct()), context, opCtx, 'unary');\n var newt = get_expression(rt$2.result, context);\n assert(newt.rest.length === 0, 'should never have left over syntax');\n return opCtx.combine(newt.result);\n }\n return opCtx.combine(UnaryOp.create(uopSyntax, t));\n } else {\n // not actually an expression so don't create\n // a UnaryOp term just return with the punctuator\n return opCtx.combine(head);\n }\n },\n prec: uopPrec,\n prevStx: unopPrevStx,\n prevTerms: unopPrevTerms,\n op: unopTerm\n });\n return step(opRest[0], opRest.slice(1), unopOpCtx);\n } // BinOp\n else if (head.isExpr && (rest[0] && rest[1] && (stxIsBinOp(rest[0]) && !bopMacroObj || bopMacroObj && bopMacroObj.isOp && bopMacroObj.binary))) {\n var opRes;\n var op = rest[0];\n var left = head;\n var rightStx = rest.slice(1);\n var leftLeft = opCtx.prevTerms[0] && opCtx.prevTerms[0].isPartial ? opCtx.prevTerms[0] : null;\n var leftTerm = PartialExpression.create(head.destruct(), leftLeft, function () {\n return step(head, [], opCtx);\n });\n var opTerm = PartialOperation.create(op, leftTerm);\n var opPrevStx = tagWithTerm(opTerm, [rest[0]]).concat(tagWithTerm(leftTerm, head.destruct()).reverse(), opCtx.prevStx);\n var opPrevTerms = [\n opTerm,\n leftTerm\n ].concat(opCtx.prevTerms);\n var isCustomOp = bopMacroObj && bopMacroObj.isOp && bopMacroObj.binary;\n var bopPrec;\n var bopAssoc;\n if (isCustomOp && bopMacroObj.binary) {\n bopPrec = bopMacroObj.binary.prec;\n bopAssoc = bopMacroObj.binary.assoc;\n } else {\n bopPrec = getBinaryOpPrec(unwrapSyntax(op));\n bopAssoc = getBinaryOpAssoc(unwrapSyntax(op));\n }\n assert(bopPrec !== undefined, 'expecting a precedence for operator: ' + op);\n var newStack;\n if (comparePrec(bopPrec, opCtx.prec, bopAssoc)) {\n var bopCtx = opCtx;\n var combResult = opCtx.combine(head);\n if (opCtx.stack.length > 0) {\n return step(combResult.term, rest, opCtx.stack[0]);\n }\n left = combResult.term;\n newStack = opCtx.stack;\n opPrevStx = combResult.prevStx;\n opPrevTerms = combResult.prevTerms;\n } else {\n newStack = [opCtx].concat(opCtx.stack);\n }\n assert(opCtx.combine !== undefined, 'expecting a combine function');\n var opRightStx = rightStx;\n var bopMacroName;\n if (isCustomOp) {\n bopMacroName = rest.slice(0, bopMacroObj.fullName.length);\n opRightStx = rightStx.slice(bopMacroObj.fullName.length - 1);\n }\n var bopOpCtx = _.extend({}, opCtx, {\n combine: function (right) {\n if (right.isExpr) {\n if (isCustomOp && bopMacroObj.binary) {\n var leftStx = left.destruct();\n var rightStx$2 = right.destruct();\n var rt$2 = expandMacro(bopMacroName.concat(syn.makeDelim('()', leftStx, leftStx[0]), syn.makeDelim('()', rightStx$2, rightStx$2[0])), context, opCtx, 'binary');\n var newt = get_expression(rt$2.result, context);\n assert(newt.rest.length === 0, 'should never have left over syntax');\n return {\n term: newt.result,\n prevStx: opCtx.prevStx,\n prevTerms: opCtx.prevTerms\n };\n }\n return {\n term: BinOp.create(left, op, right),\n prevStx: opCtx.prevStx,\n prevTerms: opCtx.prevTerms\n };\n } else {\n return {\n term: head,\n prevStx: opCtx.prevStx,\n prevTerms: opCtx.prevTerms\n };\n }\n },\n prec: bopPrec,\n op: opTerm,\n stack: newStack,\n prevStx: opPrevStx,\n prevTerms: opPrevTerms\n });\n return step(opRightStx[0], opRightStx.slice(1), bopOpCtx);\n } // Call\n else if (head.isExpr && (rest[0] && rest[0].token.type === parser.Token.Delimiter && rest[0].token.value === '()')) {\n var argRes, enforestedArgs = [], commas = [];\n rest[0].expose();\n innerTokens = rest[0].token.inner;\n while (innerTokens.length > 0) {\n argRes = enforest(innerTokens, context);\n if (!argRes.result) {\n break;\n }\n enforestedArgs.push(argRes.result);\n innerTokens = argRes.rest;\n if (innerTokens[0] && innerTokens[0].token.value === ',') {\n // record the comma for later\n commas.push(innerTokens[0]);\n // but dump it for the next loop turn\n innerTokens = innerTokens.slice(1);\n } else {\n // either there are no more tokens or\n // they aren't a comma, either way we\n // are done with the loop\n break;\n }\n }\n var argsAreExprs = _.all(enforestedArgs, function (argTerm) {\n return argTerm.isExpr;\n });\n // only a call if we can completely enforest each argument and\n // each argument is an expression\n if (innerTokens.length === 0 && argsAreExprs) {\n return step(Call.create(head, enforestedArgs, rest[0], commas), rest.slice(1), opCtx);\n }\n } // Conditional ( x ? true : false)\n else if (head.isExpr && (rest[0] && resolveFast(rest[0], context.env) === '?')) {\n var question = rest[0];\n var condRes = enforest(rest.slice(1), context);\n if (condRes.result) {\n var truExpr = condRes.result;\n var condRight = condRes.rest;\n if (truExpr.isExpr && condRight[0] && resolveFast(condRight[0], context.env) === ':') {\n var colon = condRight[0];\n var flsRes = enforest(condRight.slice(1), context);\n var flsExpr = flsRes.result;\n if (flsExpr.isExpr) {\n return step(ConditionalExpression.create(head, question, truExpr, colon, flsExpr), flsRes.rest, opCtx);\n }\n }\n }\n } // Constructor\n else if (head.isKeyword && resolveFast(head.keyword, context.env) === 'new' && rest[0]) {\n var newCallRes = enforest(rest, context);\n if (newCallRes && newCallRes.result.isExpr) {\n return step(Const.create(head, newCallRes.result), newCallRes.rest, opCtx);\n }\n } // Arrow functions with expression bodies\n else if (head.isDelimiter && head.delim.token.value === '()' && rest[0] && rest[0].token.type === parser.Token.Punctuator && resolveFast(rest[0], context.env) === '=>') {\n var arrowRes = enforest(rest.slice(1), context);\n if (arrowRes.result && arrowRes.result.isExpr) {\n return step(ArrowFun.create(head.delim, rest[0], arrowRes.result.destruct()), arrowRes.rest, opCtx);\n } else {\n throwSyntaxError('enforest', 'Body of arrow function must be an expression', rest.slice(1));\n }\n } // Arrow functions with expression bodies\n else if (head.isId && rest[0] && rest[0].token.type === parser.Token.Punctuator && resolveFast(rest[0], context.env) === '=>') {\n var res = enforest(rest.slice(1), context);\n if (res.result && res.result.isExpr) {\n return step(ArrowFun.create(head.id, rest[0], res.result.destruct()), res.rest, opCtx);\n } else {\n throwSyntaxError('enforest', 'Body of arrow function must be an expression', rest.slice(1));\n }\n } // ParenExpr\n else if (head.isDelimiter && head.delim.token.value === '()') {\n innerTokens = head.delim.expose().token.inner;\n // empty parens are acceptable but enforest\n // doesn't accept empty arrays so short\n // circuit here\n if (innerTokens.length === 0) {\n head.delim.token.inner = [Empty.create()];\n return step(ParenExpression.create(head), rest, opCtx);\n } else {\n var innerTerm = get_expression(innerTokens, context);\n if (innerTerm.result && innerTerm.result.isExpr && innerTerm.rest.length === 0) {\n head.delim.token.inner = [innerTerm.result];\n return step(ParenExpression.create(head), rest, opCtx);\n }\n } // if the tokens inside the paren aren't an expression\n // we just leave it as a delimiter\n } // AssignmentExpression\n else if (head.isExpr && ((head.isId || head.isObjGet || head.isObjDotGet || head.isThisExpression) && rest[0] && rest[1] && !bopMacroObj && stxIsAssignOp(rest[0]))) {\n var opRes = enforestAssignment(rest, context, head, prevStx, prevTerms);\n if (opRes && opRes.result) {\n return step(opRes.result, opRes.rest, _.extend({}, opCtx, {\n prevStx: opRes.prevStx,\n prevTerms: opRes.prevTerms\n }));\n }\n } // Postfix\n else if (head.isExpr && (rest[0] && (unwrapSyntax(rest[0]) === '++' || unwrapSyntax(rest[0]) === '--'))) {\n // Check if the operator is a macro first.\n if (context.env.has(resolveFast(rest[0], context.env))) {\n var headStx = tagWithTerm(head, head.destruct().reverse());\n var opPrevStx = headStx.concat(prevStx);\n var opPrevTerms = [head].concat(prevTerms);\n var opRes = enforest(rest, context, opPrevStx, opPrevTerms);\n if (opRes.prevTerms.length < opPrevTerms.length) {\n return opRes;\n } else if (opRes.result) {\n return step(head, opRes.result.destruct().concat(opRes.rest), opCtx);\n }\n }\n return step(PostfixOp.create(head, rest[0]), rest.slice(1), opCtx);\n } // ObjectGet (computed)\n else if (head.isExpr && (rest[0] && rest[0].token.value === '[]')) {\n return step(ObjGet.create(head, Delimiter.create(rest[0].expose())), rest.slice(1), opCtx);\n } // ObjectGet\n else if (head.isExpr && (rest[0] && unwrapSyntax(rest[0]) === '.' && !context.env.has(resolveFast(rest[0], context.env)) && rest[1] && (rest[1].token.type === parser.Token.Identifier || rest[1].token.type === parser.Token.Keyword))) {\n // Check if the identifier is a macro first.\n if (context.env.has(resolveFast(rest[1], context.env))) {\n var headStx = tagWithTerm(head, head.destruct().reverse());\n var dotTerm = Punc.create(rest[0]);\n var dotTerms = [dotTerm].concat(head, prevTerms);\n var dotStx = tagWithTerm(dotTerm, [rest[0]]).concat(headStx, prevStx);\n var dotRes = enforest(rest.slice(1), context, dotStx, dotTerms);\n if (dotRes.prevTerms.length < dotTerms.length) {\n return dotRes;\n } else if (dotRes.result) {\n return step(head, [rest[0]].concat(dotRes.result.destruct(), dotRes.rest), opCtx);\n }\n }\n return step(ObjDotGet.create(head, rest[0], rest[1]), rest.slice(2), opCtx);\n } // ArrayLiteral\n else if (head.isDelimiter && head.delim.token.value === '[]') {\n return step(ArrayLiteral.create(head), rest, opCtx);\n } // Block\n else if (head.isDelimiter && head.delim.token.value === '{}') {\n return step(Block.create(head), rest, opCtx);\n } // quote syntax\n else if (head.isId && unwrapSyntax(head.id) === '#quoteSyntax' && rest[0] && rest[0].token.value === '{}') {\n var tempId = fresh();\n context.templateMap.set(tempId, rest[0].token.inner);\n return step(syn.makeIdent('getTemplate', head.id), [syn.makeDelim('()', [syn.makeValue(tempId, head.id)], head.id)].concat(rest.slice(1)), opCtx);\n } // let statements\n else if (head.isKeyword && unwrapSyntax(head.keyword) === 'let') {\n var nameTokens = [];\n if (rest[0] && rest[0].token.type === parser.Token.Delimiter && rest[0].token.value === '()') {\n nameTokens = rest[0].token.inner;\n } else {\n nameTokens.push(rest[0]);\n }\n // Let macro\n if (rest[1] && rest[1].token.value === '=' && rest[2] && rest[2].token.value === 'macro') {\n var mac = enforest(rest.slice(2), context);\n if (mac.result) {\n if (!mac.result.isAnonMacro) {\n throwSyntaxError('enforest', 'expecting an anonymous macro definition in syntax let binding', rest.slice(2));\n }\n return step(LetMacro.create(nameTokens, mac.result.body), mac.rest, opCtx);\n }\n } // Let statement\n else {\n var lsRes = enforestVarStatement(rest, context, head.keyword);\n if (lsRes && lsRes.result) {\n return step(LetStatement.create(head, lsRes.result), lsRes.rest, opCtx);\n }\n }\n } // VariableStatement\n else if (head.isKeyword && unwrapSyntax(head.keyword) === 'var' && rest[0]) {\n var vsRes = enforestVarStatement(rest, context, head.keyword);\n if (vsRes && vsRes.result) {\n return step(VariableStatement.create(head, vsRes.result), vsRes.rest, opCtx);\n }\n } // Const Statement\n else if (head.isKeyword && unwrapSyntax(head.keyword) === 'const' && rest[0]) {\n var csRes = enforestVarStatement(rest, context, head.keyword);\n if (csRes && csRes.result) {\n return step(ConstStatement.create(head, csRes.result), csRes.rest, opCtx);\n }\n } // for statement\n else if (head.isKeyword && unwrapSyntax(head.keyword) === 'for' && rest[0] && rest[0].token.value === '()') {\n return step(ForStatement.create(head.keyword, rest[0]), rest.slice(1), opCtx);\n } // yield statement\n else if (head.isKeyword && unwrapSyntax(head.keyword) === 'yield') {\n var yieldExprRes = enforest(rest, context);\n if (yieldExprRes.result && yieldExprRes.result.isExpr) {\n return step(YieldExpression.create(head.keyword, yieldExprRes.result), yieldExprRes.rest, opCtx);\n }\n }\n } else {\n assert(head && head.token, 'assuming head is a syntax object');\n var macroObj = expandCount < maxExpands && getMacroInEnv(head, rest, context.env);\n // macro invocation\n if (macroObj && !macroObj.isOp) {\n var rt = expandMacro([head].concat(rest), context, opCtx, null, macroObj);\n var newOpCtx = opCtx;\n if (rt.prevTerms && rt.prevTerms.length < opCtx.prevTerms.length) {\n newOpCtx = rewindOpCtx(opCtx, rt);\n }\n if (rt.result.length > 0) {\n return step(rt.result[0], rt.result.slice(1).concat(rt.rest), newOpCtx);\n } else {\n return step(Empty.create(), rt.rest, newOpCtx);\n }\n } // anon macro definition\n else if (head.token.type === parser.Token.Identifier && resolve(head) === 'macro' && rest[0] && rest[0].token.value === '{}') {\n return step(AnonMacro.create(rest[0].expose().token.inner), rest.slice(1), opCtx);\n } // macro definition\n else if (head.token.type === parser.Token.Identifier && resolve(head) === 'macro') {\n var nameTokens = [];\n if (rest[0] && rest[0].token.type === parser.Token.Delimiter && rest[0].token.value === '()') {\n nameTokens = rest[0].expose().token.inner;\n } else {\n nameTokens.push(rest[0]);\n }\n if (rest[1] && rest[1].token.type === parser.Token.Delimiter) {\n return step(Macro.create(nameTokens, rest[1].expose().token.inner), rest.slice(2), opCtx);\n } else {\n throwSyntaxError('enforest', 'Macro declaration must include body', rest[1]);\n }\n } // operator definition\n // unaryop (neg) 1 { macro { rule { $op:expr } => { $op } } }\n else if (head.token.type === parser.Token.Identifier && head.token.value === 'unaryop' && rest[0] && rest[0].token.type === parser.Token.Delimiter && rest[0].token.value === '()' && rest[1] && rest[1].token.type === parser.Token.NumericLiteral && rest[2] && rest[2].token.type === parser.Token.Delimiter && rest[2] && rest[2].token.value === '{}') {\n var trans = enforest(rest[2].expose().token.inner, context);\n return step(OperatorDefinition.create('unary', rest[0].expose().token.inner, rest[1], null, trans.result.body), rest.slice(3), opCtx);\n } // operator definition\n // binaryop (neg) 1 left { macro { rule { $op:expr } => { $op } } }\n else if (head.token.type === parser.Token.Identifier && head.token.value === 'binaryop' && rest[0] && rest[0].token.type === parser.Token.Delimiter && rest[0].token.value === '()' && rest[1] && rest[1].token.type === parser.Token.NumericLiteral && rest[2] && rest[2].token.type === parser.Token.Identifier && rest[3] && rest[3].token.type === parser.Token.Delimiter && rest[3] && rest[3].token.value === '{}') {\n var trans = enforest(rest[3].expose().token.inner, context);\n return step(OperatorDefinition.create('binary', rest[0].expose().token.inner, rest[1], rest[2], trans.result.body), rest.slice(4), opCtx);\n } // module definition\n else if (unwrapSyntax(head) === 'module' && rest[0] && rest[0].token.value === '{}') {\n return step(Module.create(rest[0], []), rest.slice(1), opCtx);\n } // function definition\n else if (head.token.type === parser.Token.Keyword && unwrapSyntax(head) === 'function' && rest[0] && rest[0].token.type === parser.Token.Identifier && rest[1] && rest[1].token.type === parser.Token.Delimiter && rest[1].token.value === '()' && rest[2] && rest[2].token.type === parser.Token.Delimiter && rest[2].token.value === '{}') {\n rest[1].token.inner = rest[1].expose().token.inner;\n rest[2].token.inner = rest[2].expose().token.inner;\n return step(NamedFun.create(head, null, rest[0], rest[1], rest[2]), rest.slice(3), opCtx);\n } // generator function definition\n else if (head.token.type === parser.Token.Keyword && unwrapSyntax(head) === 'function' && rest[0] && rest[0].token.type === parser.Token.Punctuator && rest[0].token.value === '*' && rest[1] && rest[1].token.type === parser.Token.Identifier && rest[2] && rest[2].token.type === parser.Token.Delimiter && rest[2].token.value === '()' && rest[3] && rest[3].token.type === parser.Token.Delimiter && rest[3].token.value === '{}') {\n rest[2].token.inner = rest[2].expose().token.inner;\n rest[3].token.inner = rest[3].expose().token.inner;\n return step(NamedFun.create(head, rest[0], rest[1], rest[2], rest[3]), rest.slice(4), opCtx);\n } // anonymous function definition\n else if (head.token.type === parser.Token.Keyword && unwrapSyntax(head) === 'function' && rest[0] && rest[0].token.type === parser.Token.Delimiter && rest[0].token.value === '()' && rest[1] && rest[1].token.type === parser.Token.Delimiter && rest[1].token.value === '{}') {\n rest[0].token.inner = rest[0].expose().token.inner;\n rest[1].token.inner = rest[1].expose().token.inner;\n return step(AnonFun.create(head, null, rest[0], rest[1]), rest.slice(2), opCtx);\n } // anonymous generator function definition\n else if (head.token.type === parser.Token.Keyword && unwrapSyntax(head) === 'function' && rest[0] && rest[0].token.type === parser.Token.Punctuator && rest[0].token.value === '*' && rest[1] && rest[1].token.type === parser.Token.Delimiter && rest[1].token.value === '()' && rest[2] && rest[2].token.type === parser.Token.Delimiter && rest[2].token.value === '{}') {\n rest[1].token.inner = rest[1].expose().token.inner;\n rest[2].token.inner = rest[2].expose().token.inner;\n return step(AnonFun.create(head, rest[0], rest[1], rest[2]), rest.slice(3), opCtx);\n } // arrow function\n else if ((head.token.type === parser.Token.Delimiter && head.token.value === '()' || head.token.type === parser.Token.Identifier) && rest[0] && rest[0].token.type === parser.Token.Punctuator && resolveFast(rest[0], context.env) === '=>' && rest[1] && rest[1].token.type === parser.Token.Delimiter && rest[1].token.value === '{}') {\n return step(ArrowFun.create(head, rest[0], rest[1]), rest.slice(2), opCtx);\n } // catch statement\n else if (head.token.type === parser.Token.Keyword && unwrapSyntax(head) === 'catch' && rest[0] && rest[0].token.type === parser.Token.Delimiter && rest[0].token.value === '()' && rest[1] && rest[1].token.type === parser.Token.Delimiter && rest[1].token.value === '{}') {\n rest[0].token.inner = rest[0].expose().token.inner;\n rest[1].token.inner = rest[1].expose().token.inner;\n return step(CatchClause.create(head, rest[0], rest[1]), rest.slice(2), opCtx);\n } // this expression\n else if (head.token.type === parser.Token.Keyword && unwrapSyntax(head) === 'this') {\n return step(ThisExpression.create(head), rest, opCtx);\n } // literal\n else if (head.token.type === parser.Token.NumericLiteral || head.token.type === parser.Token.StringLiteral || head.token.type === parser.Token.BooleanLiteral || head.token.type === parser.Token.RegularExpression || head.token.type === parser.Token.NullLiteral) {\n return step(Lit.create(head), rest, opCtx);\n } // export\n else if (head.token.type === parser.Token.Keyword && unwrapSyntax(head) === 'export' && rest[0] && (rest[0].token.type === parser.Token.Identifier || rest[0].token.type === parser.Token.Keyword || rest[0].token.type === parser.Token.Punctuator || rest[0].token.type === parser.Token.Delimiter && rest[0].token.value === '()')) {\n return step(Export.create(rest[0]), rest.slice(1), opCtx);\n } // identifier\n else if (head.token.type === parser.Token.Identifier) {\n return step(Id.create(head), rest, opCtx);\n } // punctuator\n else if (head.token.type === parser.Token.Punctuator) {\n return step(Punc.create(head), rest, opCtx);\n } else if (head.token.type === parser.Token.Keyword && unwrapSyntax(head) === 'with') {\n throwSyntaxError('enforest', 'with is not supported in sweet.js', head);\n } // keyword\n else if (head.token.type === parser.Token.Keyword) {\n return step(Keyword.create(head), rest, opCtx);\n } // Delimiter\n else if (head.token.type === parser.Token.Delimiter) {\n return step(Delimiter.create(head.expose()), rest, opCtx);\n } else if (head.token.type === parser.Token.Template) {\n return step(Template.create(head), rest, opCtx);\n } // end of file\n else if (head.token.type === parser.Token.EOF) {\n assert(rest.length === 0, 'nothing should be after an EOF');\n return step(EOF.create(head), [], opCtx);\n } else {\n // todo: are we missing cases?\n assert(false, 'not implemented');\n }\n }\n // Potentially an infix macro\n if (head.isExpr && rest.length && nameInEnv(rest[0], rest.slice(1), context.env)) {\n var infLeftTerm = opCtx.prevTerms[0] && opCtx.prevTerms[0].isPartial ? opCtx.prevTerms[0] : null;\n var infTerm = PartialExpression.create(head.destruct(), infLeftTerm, function () {\n return step(head, [], opCtx);\n });\n var infPrevStx = tagWithTerm(infTerm, head.destruct()).reverse().concat(opCtx.prevStx);\n var infPrevTerms = [infTerm].concat(opCtx.prevTerms);\n var infRes = expandMacro(rest, context, {\n prevStx: infPrevStx,\n prevTerms: infPrevTerms\n });\n if (infRes.prevTerms && infRes.prevTerms.length < infPrevTerms.length) {\n var infOpCtx = rewindOpCtx(opCtx, infRes);\n return step(infRes.result[0], infRes.result.slice(1).concat(infRes.rest), infOpCtx);\n } else {\n return step(head, infRes.result.concat(infRes.rest), opCtx);\n }\n }\n // done with current step so combine and continue on\n var combResult = opCtx.combine(head);\n if (opCtx.stack.length === 0) {\n return {\n result: combResult.term,\n rest: rest,\n prevStx: combResult.prevStx,\n prevTerms: combResult.prevTerms\n };\n } else {\n return step(combResult.term, rest, opCtx.stack[0]);\n }\n }\n return step(toks[0], toks.slice(1), {\n combine: function (t) {\n return {\n term: t,\n prevStx: prevStx,\n prevTerms: prevTerms\n };\n },\n prec: 0,\n stack: [],\n op: null,\n prevStx: prevStx,\n prevTerms: prevTerms\n });\n }\n function rewindOpCtx(opCtx, res) {\n // If we've consumed all pending operators, we can just start over.\n // It's important that we always thread the new prevStx and prevTerms\n // through, otherwise the old ones will still persist.\n if (!res.prevTerms.length || !res.prevTerms[0].isPartial) {\n return _.extend({}, opCtx, {\n combine: function (t) {\n return {\n term: t,\n prevStx: res.prevStx,\n prevTerms: res.prevTerms\n };\n },\n prec: 0,\n op: null,\n stack: [],\n prevStx: res.prevStx,\n prevTerms: res.prevTerms\n });\n }\n // To rewind, we need to find the first (previous) pending operator. It\n // acts as a marker in the opCtx to let us know how far we need to go\n // back.\n var op = null;\n for (var i = 0; i < res.prevTerms.length; i++) {\n if (!res.prevTerms[i].isPartial) {\n break;\n }\n if (res.prevTerms[i].isPartialOperation) {\n op = res.prevTerms[i];\n break;\n }\n }\n // If the op matches the current opCtx, we don't need to rewind\n // anything, but we still need to persist the prevStx and prevTerms.\n if (opCtx.op === op) {\n return _.extend({}, opCtx, {\n prevStx: res.prevStx,\n prevTerms: res.prevTerms\n });\n }\n for (var i = 0; i < opCtx.stack.length; i++) {\n if (opCtx.stack[i].op === op) {\n return _.extend({}, opCtx.stack[i], {\n prevStx: res.prevStx,\n prevTerms: res.prevTerms\n });\n }\n }\n assert(false, 'Rewind failed.');\n }\n function get_expression(stx, context) {\n if (stx[0].term) {\n for (var termLen = 1; termLen < stx.length; termLen++) {\n if (stx[termLen].term !== stx[0].term) {\n break;\n }\n }\n // Guard the termLen because we can have a multi-token term that\n // we don't want to split. TODO: is there something we can do to\n // get around this safely?\n if (stx[0].term.isPartialExpression && termLen === stx[0].term.stx.length) {\n var expr = stx[0].term.combine().result;\n for (var i = 1, term = stx[0].term; i < stx.length; i++) {\n if (stx[i].term !== term) {\n if (term && term.isPartial) {\n term = term.left;\n i--;\n } else {\n break;\n }\n }\n }\n return {\n result: expr,\n rest: stx.slice(i)\n };\n } else if (stx[0].term.isExpr) {\n return {\n result: stx[0].term,\n rest: stx.slice(termLen)\n };\n } else {\n return {\n result: null,\n rest: stx\n };\n }\n }\n var res = enforest(stx, context);\n if (!res.result || !res.result.isExpr) {\n return {\n result: null,\n rest: stx\n };\n }\n return res;\n }\n function tagWithTerm(term, stx) {\n return stx.map(function (s) {\n var src = s.token;\n var keys = Object.keys(src);\n var newtok = {};\n for (var i = 0, len = keys.length, key; i < len; i++) {\n key = keys[i];\n newtok[key] = src[key];\n }\n s = syntaxFromToken(newtok, s);\n s.term = term;\n return s;\n });\n }\n // mark each syntax object in the pattern environment,\n // mutating the environment\n function applyMarkToPatternEnv(newMark, env) {\n /*\n Takes a `match` object:\n\n {\n level: ,\n match: [ or ]\n }\n\n where the match property is an array of syntax objects at the bottom (0) level.\n Does a depth-first search and applys the mark to each syntax object.\n */\n function dfs(match) {\n if (match.level === 0) {\n // replace the match property with the marked syntax\n match.match = _.map(match.match, function (stx) {\n return stx.mark(newMark);\n });\n } else {\n _.each(match.match, function (match$2) {\n dfs(match$2);\n });\n }\n }\n _.keys(env).forEach(function (key) {\n dfs(env[key]);\n });\n }\n // given the syntax for a macro, produce a macro transformer\n // (Macro) -> (([...CSyntax]) -> ReadTree)\n function loadMacroDef(body, context) {\n // raw function primitive form\n if (!(body[0] && body[0].token.type === parser.Token.Keyword && body[0].token.value === 'function')) {\n throwSyntaxError('load macro', 'Primitive macro form must contain a function for the macro body', body);\n }\n var stub = parser.read('()');\n stub[0].token.inner = body;\n var expanded = expand(stub, context);\n expanded = expanded[0].destruct().concat(expanded[1].eof);\n var flattend = flatten(expanded);\n var bodyCode = codegen.generate(parser.parse(flattend));\n var macroFn = scopedEval(bodyCode, {\n makeValue: syn.makeValue,\n makeRegex: syn.makeRegex,\n makeIdent: syn.makeIdent,\n makeKeyword: syn.makeKeyword,\n makePunc: syn.makePunc,\n makeDelim: syn.makeDelim,\n require: function (id) {\n if (context.requireModule) {\n return context.requireModule(id, context.filename);\n }\n return require(id);\n },\n getExpr: function (stx) {\n var r;\n if (stx.length === 0) {\n return {\n success: false,\n result: [],\n rest: []\n };\n }\n r = get_expression(stx, context);\n return {\n success: r.result !== null,\n result: r.result === null ? [] : r.result.destruct(),\n rest: r.rest\n };\n },\n getIdent: function (stx) {\n if (stx[0] && stx[0].token.type === parser.Token.Identifier) {\n return {\n success: true,\n result: [stx[0]],\n rest: stx.slice(1)\n };\n }\n return {\n success: false,\n result: [],\n rest: stx\n };\n },\n getLit: function (stx) {\n if (stx[0] && patternModule.typeIsLiteral(stx[0].token.type)) {\n return {\n success: true,\n result: [stx[0]],\n rest: stx.slice(1)\n };\n }\n return {\n success: false,\n result: [],\n rest: stx\n };\n },\n unwrapSyntax: syn.unwrapSyntax,\n throwSyntaxError: throwSyntaxError,\n throwSyntaxCaseError: throwSyntaxCaseError,\n prettyPrint: syn.prettyPrint,\n parser: parser,\n __fresh: fresh,\n _: _,\n patternModule: patternModule,\n getPattern: function (id) {\n return context.patternMap.get(id);\n },\n getTemplate: function (id) {\n return syn.cloneSyntaxArray(context.templateMap.get(id));\n },\n applyMarkToPatternEnv: applyMarkToPatternEnv,\n mergeMatches: function (newMatch, oldMatch) {\n newMatch.patternEnv = _.extend({}, oldMatch.patternEnv, newMatch.patternEnv);\n return newMatch;\n }\n });\n return macroFn;\n }\n // similar to `parse1` in the honu paper\n // ([Syntax], Map) -> {terms: [TermTree], env: Map}\n function expandToTermTree(stx, context) {\n assert(context, 'expander context is required');\n var f, head, prevStx, restStx, prevTerms, macroDefinition;\n var rest = stx;\n while (rest.length > 0) {\n assert(rest[0].token, 'expecting a syntax object');\n f = enforest(rest, context, prevStx, prevTerms);\n // head :: TermTree\n head = f.result;\n // rest :: [Syntax]\n rest = f.rest;\n if (!head) {\n // no head means the expansions stopped prematurely (for stepping)\n restStx = rest;\n break;\n }\n if (head.isMacro && expandCount < maxExpands) {\n // load the macro definition into the environment and continue expanding\n macroDefinition = loadMacroDef(head.body, context);\n var name = head.name.map(unwrapSyntax).join('');\n var nameStx = syn.makeIdent(name, head.name[0]);\n addToDefinitionCtx([nameStx], context.defscope, false);\n context.env.names.set(name, true);\n context.env.set(resolve(nameStx), {\n fn: macroDefinition,\n isOp: false,\n builtin: builtinMode,\n fullName: head.name\n });\n continue;\n }\n if (head.isLetMacro && expandCount < maxExpands) {\n // load the macro definition into the environment and continue expanding\n macroDefinition = loadMacroDef(head.body, context);\n var freshName = fresh();\n var name = head.name.map(unwrapSyntax).join('');\n var nameStx = syn.makeIdent(name, head.name[0]);\n var renamedName = nameStx.rename(nameStx, freshName);\n rest = _.map(rest, function (stx$2) {\n return stx$2.rename(nameStx, freshName);\n });\n context.env.names.set(name, true);\n context.env.set(resolve(renamedName), {\n fn: macroDefinition,\n isOp: false,\n builtin: builtinMode,\n fullName: head.name\n });\n continue;\n }\n if (head.isOperatorDefinition) {\n var opDefinition = loadMacroDef(head.body, context);\n var name = head.name.map(unwrapSyntax).join('');\n var nameStx = syn.makeIdent(name, head.name[0]);\n addToDefinitionCtx([nameStx], context.defscope, false);\n var resolvedName = resolve(nameStx);\n var opObj = context.env.get(resolvedName);\n if (!opObj) {\n opObj = {\n isOp: true,\n builtin: builtinMode,\n fullName: head.name\n };\n }\n assert(head.type === 'binary' || head.type === 'unary', 'operator must either be binary or unary');\n opObj[head.type] = {\n fn: opDefinition,\n prec: head.prec.token.value,\n assoc: head.assoc ? head.assoc.token.value : null\n };\n context.env.names.set(name, true);\n context.env.set(resolvedName, opObj);\n continue;\n }\n // We build the newPrevTerms/Stx here (instead of at the beginning) so\n // that macro definitions don't get added to it.\n var destructed = tagWithTerm(head, f.result.destruct());\n prevTerms = [head].concat(f.prevTerms);\n prevStx = destructed.reverse().concat(f.prevStx);\n if (head.isNamedFun) {\n addToDefinitionCtx([head.name], context.defscope, true);\n }\n if (head.isVariableStatement || head.isLetStatement || head.isConstStatement) {\n addToDefinitionCtx(_.map(head.decls, function (decl) {\n return decl.ident;\n }), context.defscope, true);\n }\n if (head.isBlock && head.body.isDelimiter) {\n head.body.delim.token.inner.forEach(function (term) {\n if (term.isVariableStatement) {\n addToDefinitionCtx(_.map(term.decls, function (decl) {\n return decl.ident;\n }), context.defscope, true);\n }\n });\n }\n if (head.isDelimiter) {\n head.delim.token.inner.forEach(function (term) {\n if (term.isVariableStatement) {\n addToDefinitionCtx(_.map(term.decls, function (decl) {\n return decl.ident;\n }), context.defscope, true);\n }\n });\n }\n if (head.isForStatement) {\n head.cond.expose();\n var forCond = head.cond.token.inner;\n if (forCond[0] && resolve(forCond[0]) === 'let' && forCond[1] && forCond[1].token.type === parser.Token.Identifier) {\n var letNew = fresh();\n var letId = forCond[1];\n forCond = forCond.map(function (stx$2) {\n return stx$2.rename(letId, letNew);\n });\n // hack: we want to do the let renaming here, not\n // in the expansion of `for (...)` so just remove the `let`\n // keyword\n head.cond.token.inner = expand([forCond[0]], context).concat(expand(forCond.slice(1), context));\n // nice and easy case: `for (...) { ... }`\n if (rest[0] && rest[0].token.value === '{}') {\n rest[0] = rest[0].rename(letId, letNew);\n } else {\n // need to deal with things like `for (...) if (...) log(...)`\n var bodyEnf = enforest(rest, context);\n var bodyDestructed = bodyEnf.result.destruct();\n var renamedBodyTerm = bodyEnf.result.rename(letId, letNew);\n tagWithTerm(renamedBodyTerm, bodyDestructed);\n rest = bodyEnf.rest;\n prevStx = bodyDestructed.reverse().concat(prevStx);\n prevTerms = [renamedBodyTerm].concat(prevTerms);\n }\n } else {\n head.cond.token.inner = expand(head.cond.token.inner, context);\n }\n }\n }\n return {\n terms: prevTerms ? prevTerms.reverse() : [],\n restStx: restStx,\n context: context\n };\n }\n function addToDefinitionCtx(idents, defscope, skipRep) {\n assert(idents && idents.length > 0, 'expecting some variable identifiers');\n skipRep = skipRep || false;\n _.each(idents, function (id) {\n var skip = false;\n if (skipRep) {\n var declRepeat = _.find(defscope, function (def) {\n return def.id.token.value === id.token.value && arraysEqual(marksof(def.id.context), marksof(id.context));\n });\n skip = typeof declRepeat !== 'undefined';\n }\n /*\n When var declarations repeat in the same function scope:\n\n var x = 24;\n ...\n var x = 42;\n\n we just need to use the first renaming and leave the\n definition context as is.\n */\n if (!skip) {\n var name = fresh();\n defscope.push({\n id: id,\n name: name\n });\n }\n });\n }\n // similar to `parse2` in the honu paper except here we\n // don't generate an AST yet\n // (TermTree, Map, Map) -> TermTree\n function expandTermTreeToFinal(term, context) {\n assert(context && context.env, 'environment map is required');\n if (term.isArrayLiteral) {\n term.array.delim.token.inner = expand(term.array.delim.expose().token.inner, context);\n return term;\n } else if (term.isBlock) {\n term.body.delim.token.inner = expand(term.body.delim.expose().token.inner, context);\n return term;\n } else if (term.isParenExpression) {\n assert(term.expr.delim.token.inner.length === 1, 'Paren expressions always have a single term inside the delimiter');\n term.expr.delim.token.inner = [expandTermTreeToFinal(term.expr.delim.token.inner[0], context)];\n return term;\n } else if (term.isCall) {\n term.fun = expandTermTreeToFinal(term.fun, context);\n term.args = _.map(term.args, function (arg) {\n return expandTermTreeToFinal(arg, context);\n });\n return term;\n } else if (term.isConst) {\n term.call = expandTermTreeToFinal(term.call, context);\n return term;\n } else if (term.isUnaryOp) {\n term.expr = expandTermTreeToFinal(term.expr, context);\n return term;\n } else if (term.isBinOp || term.isAssignmentExpression) {\n term.left = expandTermTreeToFinal(term.left, context);\n term.right = expandTermTreeToFinal(term.right, context);\n return term;\n } else if (term.isObjGet) {\n term.left = expandTermTreeToFinal(term.left, context);\n term.right.delim.token.inner = expand(term.right.delim.expose().token.inner, context);\n return term;\n } else if (term.isObjDotGet) {\n term.left = expandTermTreeToFinal(term.left, context);\n term.right = expandTermTreeToFinal(term.right, context);\n return term;\n } else if (term.isConditionalExpression) {\n term.cond = expandTermTreeToFinal(term.cond, context);\n term.tru = expandTermTreeToFinal(term.tru, context);\n term.fls = expandTermTreeToFinal(term.fls, context);\n return term;\n } else if (term.isVariableDeclaration) {\n if (term.init) {\n term.init = expandTermTreeToFinal(term.init, context);\n }\n return term;\n } else if (term.isVariableStatement) {\n term.decls = _.map(term.decls, function (decl) {\n return expandTermTreeToFinal(decl, context);\n });\n return term;\n } else if (term.isDelimiter) {\n // expand inside the delimiter and then continue on\n term.delim.token.inner = expand(term.delim.expose().token.inner, context);\n return term;\n } else if (term.isNamedFun || term.isAnonFun || term.isCatchClause || term.isArrowFun || term.isModule) {\n // function definitions need a bunch of hygiene logic\n // push down a fresh definition context\n var newDef = [];\n var bodyContext = makeExpanderContext(_.defaults({ defscope: newDef }, context));\n var paramSingleIdent = term.params && term.params.token.type === parser.Token.Identifier;\n var params;\n if (term.params && term.params.token.type === parser.Token.Delimiter) {\n params = term.params.expose();\n } else if (paramSingleIdent) {\n params = term.params;\n } else {\n params = syn.makeDelim('()', [], null);\n }\n var bodies;\n if (Array.isArray(term.body)) {\n bodies = syn.makeDelim('{}', term.body, null);\n } else {\n bodies = term.body;\n }\n bodies = bodies.addDefCtx(newDef);\n var paramNames = _.map(getParamIdentifiers(params), function (param) {\n var freshName = fresh();\n return {\n freshName: freshName,\n originalParam: param,\n renamedParam: param.rename(param, freshName)\n };\n });\n // rename the function body for each of the parameters\n var renamedBody = _.reduce(paramNames, function (accBody, p) {\n return accBody.rename(p.originalParam, p.freshName);\n }, bodies);\n renamedBody = renamedBody.expose();\n var expandedResult = expandToTermTree(renamedBody.token.inner, bodyContext);\n var bodyTerms = expandedResult.terms;\n if (expandedResult.restStx) {\n // The expansion was halted prematurely. Just stop and\n // return what we have so far, along with the rest of the syntax\n renamedBody.token.inner = expandedResult.terms.concat(expandedResult.restStx);\n if (Array.isArray(term.body)) {\n term.body = renamedBody.token.inner;\n } else {\n term.body = renamedBody;\n }\n return term;\n }\n var renamedParams = _.map(paramNames, function (p) {\n return p.renamedParam;\n });\n var flatArgs;\n if (paramSingleIdent) {\n flatArgs = renamedParams[0];\n } else {\n flatArgs = syn.makeDelim('()', joinSyntax(renamedParams, ','), term.params || null);\n }\n var expandedArgs = expand([flatArgs], bodyContext);\n assert(expandedArgs.length === 1, 'should only get back one result');\n // stitch up the function with all the renamings\n if (term.params) {\n term.params = expandedArgs[0];\n }\n bodyTerms = _.map(bodyTerms, function (bodyTerm) {\n // add the definition context to the result of\n // expansion (this makes sure that syntax objects\n // introduced by expansion have the def context)\n if (bodyTerm.isBlock) {\n // we need to expand blocks before adding the defctx since\n // blocks defer macro expansion.\n var blockFinal = expandTermTreeToFinal(bodyTerm, expandedResult.context);\n return blockFinal.addDefCtx(newDef);\n } else {\n var termWithCtx = bodyTerm.addDefCtx(newDef);\n // finish expansion\n return expandTermTreeToFinal(termWithCtx, expandedResult.context);\n }\n });\n if (term.isModule) {\n bodyTerms = _.filter(bodyTerms, function (bodyTerm) {\n if (bodyTerm.isExport) {\n term.exports.push(bodyTerm);\n return false;\n } else {\n return true;\n }\n });\n }\n renamedBody.token.inner = bodyTerms;\n if (Array.isArray(term.body)) {\n term.body = renamedBody.token.inner;\n } else {\n term.body = renamedBody;\n }\n // and continue expand the rest\n return term;\n }\n // the term is fine as is\n return term;\n }\n // similar to `parse` in the honu paper\n // ([Syntax], Map, Map) -> [TermTree]\n function expand(stx, context) {\n assert(context, 'must provide an expander context');\n var trees = expandToTermTree(stx, context);\n var terms = _.map(trees.terms, function (term) {\n return expandTermTreeToFinal(term, trees.context);\n });\n if (trees.restStx) {\n terms.push.apply(terms, trees.restStx);\n }\n return terms;\n }\n function makeExpanderContext(o) {\n o = o || {};\n var env = o.env || new StringMap();\n if (!env.names) {\n env.names = new StringMap();\n }\n // read-only but can enumerate\n return Object.create(Object.prototype, {\n filename: {\n value: o.filename,\n writable: false,\n enumerable: true,\n configurable: false\n },\n requireModule: {\n value: o.requireModule,\n writable: false,\n enumerable: true,\n configurable: false\n },\n env: {\n value: env,\n writable: false,\n enumerable: true,\n configurable: false\n },\n defscope: {\n value: o.defscope,\n writable: false,\n enumerable: true,\n configurable: false\n },\n templateMap: {\n value: o.templateMap || new StringMap(),\n writable: false,\n enumerable: true,\n configurable: false\n },\n patternMap: {\n value: o.patternMap || new StringMap(),\n writable: false,\n enumerable: true,\n configurable: false\n },\n mark: {\n value: o.mark,\n writable: false,\n enumerable: true,\n configurable: false\n }\n });\n }\n function makeTopLevelExpanderContext(options) {\n var requireModule = options ? options.requireModule : undefined;\n var filename = options ? options.filename : undefined;\n return makeExpanderContext({\n filename: filename,\n requireModule: requireModule\n });\n }\n // a hack to make the top level hygiene work out\n function expandTopLevel(stx, moduleContexts, options) {\n moduleContexts = moduleContexts || [];\n maxExpands = (_.isNumber(options) ? options : options && options._maxExpands) || Infinity;\n expandCount = 0;\n var context = makeTopLevelExpanderContext(options);\n var modBody = syn.makeDelim('{}', stx, null);\n modBody = _.reduce(moduleContexts, function (acc, mod) {\n context.env.extend(mod.env);\n context.env.names.extend(mod.env.names);\n return loadModuleExports(acc, context.env, mod.exports, mod.env);\n }, modBody);\n var res = expand([\n syn.makeIdent('module', null),\n modBody\n ], context);\n res = res[0].destruct();\n return flatten(res[0].token.inner);\n }\n function expandModule(stx, moduleContexts, options) {\n moduleContexts = moduleContexts || [];\n maxExpands = Infinity;\n expandCount = 0;\n var context = makeTopLevelExpanderContext(options);\n var modBody = syn.makeDelim('{}', stx, null);\n modBody = _.reduce(moduleContexts, function (acc, mod) {\n context.env.extend(mod.env);\n context.env.names.extend(mod.env.names);\n return loadModuleExports(acc, context.env, mod.exports, mod.env);\n }, modBody);\n builtinMode = true;\n var moduleRes = expand([\n syn.makeIdent('module', null),\n modBody\n ], context);\n builtinMode = false;\n context.exports = _.map(moduleRes[0].exports, function (term) {\n var nameStr, name;\n if (term.name.token.type === parser.Token.Delimiter) {\n nameStr = term.name.token.inner.map(unwrapSyntax).join('');\n name = syn.makeIdent(nameStr, term.name);\n } else {\n name = term.name;\n nameStr = unwrapSyntax(name);\n }\n return {\n oldExport: name,\n newParam: syn.makeIdent(nameStr, null)\n };\n });\n return context;\n }\n function loadModuleExports(stx, newEnv, exports$3, oldEnv) {\n return _.reduce(exports$3, function (acc, param) {\n var newName = fresh();\n var transformer = oldEnv.get(resolve(param.oldExport));\n if (transformer) {\n newEnv.set(resolve(param.newParam.rename(param.newParam, newName)), transformer);\n return acc.rename(param.newParam, newName);\n } else {\n return acc;\n }\n }, stx);\n }\n // break delimiter tree structure down to flat array of syntax objects\n function flatten(stx) {\n return _.reduce(stx, function (acc, stx$2) {\n if (stx$2.token.type === parser.Token.Delimiter) {\n var exposed = stx$2.expose();\n var openParen = syntaxFromToken({\n type: parser.Token.Punctuator,\n value: stx$2.token.value[0],\n range: stx$2.token.startRange,\n sm_range: typeof stx$2.token.sm_startRange == 'undefined' ? stx$2.token.startRange : stx$2.token.sm_startRange,\n lineNumber: stx$2.token.startLineNumber,\n sm_lineNumber: typeof stx$2.token.sm_startLineNumber == 'undefined' ? stx$2.token.startLineNumber : stx$2.token.sm_startLineNumber,\n lineStart: stx$2.token.startLineStart,\n sm_lineStart: typeof stx$2.token.sm_startLineStart == 'undefined' ? stx$2.token.startLineStart : stx$2.token.sm_startLineStart\n }, exposed);\n var closeParen = syntaxFromToken({\n type: parser.Token.Punctuator,\n value: stx$2.token.value[1],\n range: stx$2.token.endRange,\n sm_range: typeof stx$2.token.sm_endRange == 'undefined' ? stx$2.token.endRange : stx$2.token.sm_endRange,\n lineNumber: stx$2.token.endLineNumber,\n sm_lineNumber: typeof stx$2.token.sm_endLineNumber == 'undefined' ? stx$2.token.endLineNumber : stx$2.token.sm_endLineNumber,\n lineStart: stx$2.token.endLineStart,\n sm_lineStart: typeof stx$2.token.sm_endLineStart == 'undefined' ? stx$2.token.endLineStart : stx$2.token.sm_endLineStart\n }, exposed);\n if (stx$2.token.leadingComments) {\n openParen.token.leadingComments = stx$2.token.leadingComments;\n }\n if (stx$2.token.trailingComments) {\n openParen.token.trailingComments = stx$2.token.trailingComments;\n }\n acc.push(openParen);\n push.apply(acc, flatten(exposed.token.inner));\n acc.push(closeParen);\n return acc;\n }\n stx$2.token.sm_lineNumber = stx$2.token.sm_lineNumber ? stx$2.token.sm_lineNumber : stx$2.token.lineNumber;\n stx$2.token.sm_lineStart = stx$2.token.sm_lineStart ? stx$2.token.sm_lineStart : stx$2.token.lineStart;\n stx$2.token.sm_range = stx$2.token.sm_range ? stx$2.token.sm_range : stx$2.token.range;\n acc.push(stx$2);\n return acc;\n }, []);\n }\n exports$2.StringMap = StringMap;\n exports$2.enforest = enforest;\n exports$2.expand = expandTopLevel;\n exports$2.expandModule = expandModule;\n exports$2.resolve = resolve;\n exports$2.get_expression = get_expression;\n exports$2.getName = getName;\n exports$2.getMacroInEnv = getMacroInEnv;\n exports$2.nameInEnv = nameInEnv;\n exports$2.makeExpanderContext = makeExpanderContext;\n exports$2.Expr = Expr;\n exports$2.VariableStatement = VariableStatement;\n exports$2.tokensToSyntax = syn.tokensToSyntax;\n exports$2.syntaxToTokens = syn.syntaxToTokens;\n}));\n//# sourceMappingURL=expander.js.map" }, { "path": "docs/editor/scripts/jquery.js", "content": "/*!\n * jQuery JavaScript Library v2.0.3\n * http://jquery.com/\n *\n * Includes Sizzle.js\n * http://sizzlejs.com/\n *\n * Copyright 2005, 2013 jQuery Foundation, Inc. and other contributors\n * Released under the MIT license\n * http://jquery.org/license\n *\n * Date: 2013-07-03T13:30Z\n */\n(function( window, undefined ) {\n\n// Can't do this because several apps including ASP.NET trace\n// the stack via arguments.caller.callee and Firefox dies if\n// you try to trace through \"use strict\" call chains. (#13335)\n// Support: Firefox 18+\n//\"use strict\";\nvar\n\t// A central reference to the root jQuery(document)\n\trootjQuery,\n\n\t// The deferred used on DOM ready\n\treadyList,\n\n\t// Support: IE9\n\t// For `typeof xmlNode.method` instead of `xmlNode.method !== undefined`\n\tcore_strundefined = typeof undefined,\n\n\t// Use the correct document accordingly with window argument (sandbox)\n\tlocation = window.location,\n\tdocument = window.document,\n\tdocElem = document.documentElement,\n\n\t// Map over jQuery in case of overwrite\n\t_jQuery = window.jQuery,\n\n\t// Map over the $ in case of overwrite\n\t_$ = window.$,\n\n\t// [[Class]] -> type pairs\n\tclass2type = {},\n\n\t// List of deleted data cache ids, so we can reuse them\n\tcore_deletedIds = [],\n\n\tcore_version = \"2.0.3\",\n\n\t// Save a reference to some core methods\n\tcore_concat = core_deletedIds.concat,\n\tcore_push = core_deletedIds.push,\n\tcore_slice = core_deletedIds.slice,\n\tcore_indexOf = core_deletedIds.indexOf,\n\tcore_toString = class2type.toString,\n\tcore_hasOwn = class2type.hasOwnProperty,\n\tcore_trim = core_version.trim,\n\n\t// Define a local copy of jQuery\n\tjQuery = function( selector, context ) {\n\t\t// The jQuery object is actually just the init constructor 'enhanced'\n\t\treturn new jQuery.fn.init( selector, context, rootjQuery );\n\t},\n\n\t// Used for matching numbers\n\tcore_pnum = /[+-]?(?:\\d*\\.|)\\d+(?:[eE][+-]?\\d+|)/.source,\n\n\t// Used for splitting on whitespace\n\tcore_rnotwhite = /\\S+/g,\n\n\t// A simple way to check for HTML strings\n\t// Prioritize #id over to avoid XSS via location.hash (#9521)\n\t// Strict HTML recognition (#11290: must start with <)\n\trquickExpr = /^(?:\\s*(<[\\w\\W]+>)[^>]*|#([\\w-]*))$/,\n\n\t// Match a standalone tag\n\trsingleTag = /^<(\\w+)\\s*\\/?>(?:<\\/\\1>|)$/,\n\n\t// Matches dashed string for camelizing\n\trmsPrefix = /^-ms-/,\n\trdashAlpha = /-([\\da-z])/gi,\n\n\t// Used by jQuery.camelCase as callback to replace()\n\tfcamelCase = function( all, letter ) {\n\t\treturn letter.toUpperCase();\n\t},\n\n\t// The ready event handler and self cleanup method\n\tcompleted = function() {\n\t\tdocument.removeEventListener( \"DOMContentLoaded\", completed, false );\n\t\twindow.removeEventListener( \"load\", completed, false );\n\t\tjQuery.ready();\n\t};\n\njQuery.fn = jQuery.prototype = {\n\t// The current version of jQuery being used\n\tjquery: core_version,\n\n\tconstructor: jQuery,\n\tinit: function( selector, context, rootjQuery ) {\n\t\tvar match, elem;\n\n\t\t// HANDLE: $(\"\"), $(null), $(undefined), $(false)\n\t\tif ( !selector ) {\n\t\t\treturn this;\n\t\t}\n\n\t\t// Handle HTML strings\n\t\tif ( typeof selector === \"string\" ) {\n\t\t\tif ( selector.charAt(0) === \"<\" && selector.charAt( selector.length - 1 ) === \">\" && selector.length >= 3 ) {\n\t\t\t\t// Assume that strings that start and end with <> are HTML and skip the regex check\n\t\t\t\tmatch = [ null, selector, null ];\n\n\t\t\t} else {\n\t\t\t\tmatch = rquickExpr.exec( selector );\n\t\t\t}\n\n\t\t\t// Match html or make sure no context is specified for #id\n\t\t\tif ( match && (match[1] || !context) ) {\n\n\t\t\t\t// HANDLE: $(html) -> $(array)\n\t\t\t\tif ( match[1] ) {\n\t\t\t\t\tcontext = context instanceof jQuery ? context[0] : context;\n\n\t\t\t\t\t// scripts is true for back-compat\n\t\t\t\t\tjQuery.merge( this, jQuery.parseHTML(\n\t\t\t\t\t\tmatch[1],\n\t\t\t\t\t\tcontext && context.nodeType ? context.ownerDocument || context : document,\n\t\t\t\t\t\ttrue\n\t\t\t\t\t) );\n\n\t\t\t\t\t// HANDLE: $(html, props)\n\t\t\t\t\tif ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {\n\t\t\t\t\t\tfor ( match in context ) {\n\t\t\t\t\t\t\t// Properties of context are called as methods if possible\n\t\t\t\t\t\t\tif ( jQuery.isFunction( this[ match ] ) ) {\n\t\t\t\t\t\t\t\tthis[ match ]( context[ match ] );\n\n\t\t\t\t\t\t\t// ...and otherwise set as attributes\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\tthis.attr( match, context[ match ] );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\treturn this;\n\n\t\t\t\t// HANDLE: $(#id)\n\t\t\t\t} else {\n\t\t\t\t\telem = document.getElementById( match[2] );\n\n\t\t\t\t\t// Check parentNode to catch when Blackberry 4.6 returns\n\t\t\t\t\t// nodes that are no longer in the document #6963\n\t\t\t\t\tif ( elem && elem.parentNode ) {\n\t\t\t\t\t\t// Inject the element directly into the jQuery object\n\t\t\t\t\t\tthis.length = 1;\n\t\t\t\t\t\tthis[0] = elem;\n\t\t\t\t\t}\n\n\t\t\t\t\tthis.context = document;\n\t\t\t\t\tthis.selector = selector;\n\t\t\t\t\treturn this;\n\t\t\t\t}\n\n\t\t\t// HANDLE: $(expr, $(...))\n\t\t\t} else if ( !context || context.jquery ) {\n\t\t\t\treturn ( context || rootjQuery ).find( selector );\n\n\t\t\t// HANDLE: $(expr, context)\n\t\t\t// (which is just equivalent to: $(context).find(expr)\n\t\t\t} else {\n\t\t\t\treturn this.constructor( context ).find( selector );\n\t\t\t}\n\n\t\t// HANDLE: $(DOMElement)\n\t\t} else if ( selector.nodeType ) {\n\t\t\tthis.context = this[0] = selector;\n\t\t\tthis.length = 1;\n\t\t\treturn this;\n\n\t\t// HANDLE: $(function)\n\t\t// Shortcut for document ready\n\t\t} else if ( jQuery.isFunction( selector ) ) {\n\t\t\treturn rootjQuery.ready( selector );\n\t\t}\n\n\t\tif ( selector.selector !== undefined ) {\n\t\t\tthis.selector = selector.selector;\n\t\t\tthis.context = selector.context;\n\t\t}\n\n\t\treturn jQuery.makeArray( selector, this );\n\t},\n\n\t// Start with an empty selector\n\tselector: \"\",\n\n\t// The default length of a jQuery object is 0\n\tlength: 0,\n\n\ttoArray: function() {\n\t\treturn core_slice.call( this );\n\t},\n\n\t// Get the Nth element in the matched element set OR\n\t// Get the whole matched element set as a clean array\n\tget: function( num ) {\n\t\treturn num == null ?\n\n\t\t\t// Return a 'clean' array\n\t\t\tthis.toArray() :\n\n\t\t\t// Return just the object\n\t\t\t( num < 0 ? this[ this.length + num ] : this[ num ] );\n\t},\n\n\t// Take an array of elements and push it onto the stack\n\t// (returning the new matched element set)\n\tpushStack: function( elems ) {\n\n\t\t// Build a new jQuery matched element set\n\t\tvar ret = jQuery.merge( this.constructor(), elems );\n\n\t\t// Add the old object onto the stack (as a reference)\n\t\tret.prevObject = this;\n\t\tret.context = this.context;\n\n\t\t// Return the newly-formed element set\n\t\treturn ret;\n\t},\n\n\t// Execute a callback for every element in the matched set.\n\t// (You can seed the arguments with an array of args, but this is\n\t// only used internally.)\n\teach: function( callback, args ) {\n\t\treturn jQuery.each( this, callback, args );\n\t},\n\n\tready: function( fn ) {\n\t\t// Add the callback\n\t\tjQuery.ready.promise().done( fn );\n\n\t\treturn this;\n\t},\n\n\tslice: function() {\n\t\treturn this.pushStack( core_slice.apply( this, arguments ) );\n\t},\n\n\tfirst: function() {\n\t\treturn this.eq( 0 );\n\t},\n\n\tlast: function() {\n\t\treturn this.eq( -1 );\n\t},\n\n\teq: function( i ) {\n\t\tvar len = this.length,\n\t\t\tj = +i + ( i < 0 ? len : 0 );\n\t\treturn this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] );\n\t},\n\n\tmap: function( callback ) {\n\t\treturn this.pushStack( jQuery.map(this, function( elem, i ) {\n\t\t\treturn callback.call( elem, i, elem );\n\t\t}));\n\t},\n\n\tend: function() {\n\t\treturn this.prevObject || this.constructor(null);\n\t},\n\n\t// For internal use only.\n\t// Behaves like an Array's method, not like a jQuery method.\n\tpush: core_push,\n\tsort: [].sort,\n\tsplice: [].splice\n};\n\n// Give the init function the jQuery prototype for later instantiation\njQuery.fn.init.prototype = jQuery.fn;\n\njQuery.extend = jQuery.fn.extend = function() {\n\tvar options, name, src, copy, copyIsArray, clone,\n\t\ttarget = arguments[0] || {},\n\t\ti = 1,\n\t\tlength = arguments.length,\n\t\tdeep = false;\n\n\t// Handle a deep copy situation\n\tif ( typeof target === \"boolean\" ) {\n\t\tdeep = target;\n\t\ttarget = arguments[1] || {};\n\t\t// skip the boolean and the target\n\t\ti = 2;\n\t}\n\n\t// Handle case when target is a string or something (possible in deep copy)\n\tif ( typeof target !== \"object\" && !jQuery.isFunction(target) ) {\n\t\ttarget = {};\n\t}\n\n\t// extend jQuery itself if only one argument is passed\n\tif ( length === i ) {\n\t\ttarget = this;\n\t\t--i;\n\t}\n\n\tfor ( ; i < length; i++ ) {\n\t\t// Only deal with non-null/undefined values\n\t\tif ( (options = arguments[ i ]) != null ) {\n\t\t\t// Extend the base object\n\t\t\tfor ( name in options ) {\n\t\t\t\tsrc = target[ name ];\n\t\t\t\tcopy = options[ name ];\n\n\t\t\t\t// Prevent never-ending loop\n\t\t\t\tif ( target === copy ) {\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\t// Recurse if we're merging plain objects or arrays\n\t\t\t\tif ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {\n\t\t\t\t\tif ( copyIsArray ) {\n\t\t\t\t\t\tcopyIsArray = false;\n\t\t\t\t\t\tclone = src && jQuery.isArray(src) ? src : [];\n\n\t\t\t\t\t} else {\n\t\t\t\t\t\tclone = src && jQuery.isPlainObject(src) ? src : {};\n\t\t\t\t\t}\n\n\t\t\t\t\t// Never move original objects, clone them\n\t\t\t\t\ttarget[ name ] = jQuery.extend( deep, clone, copy );\n\n\t\t\t\t// Don't bring in undefined values\n\t\t\t\t} else if ( copy !== undefined ) {\n\t\t\t\t\ttarget[ name ] = copy;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// Return the modified object\n\treturn target;\n};\n\njQuery.extend({\n\t// Unique for each copy of jQuery on the page\n\texpando: \"jQuery\" + ( core_version + Math.random() ).replace( /\\D/g, \"\" ),\n\n\tnoConflict: function( deep ) {\n\t\tif ( window.$ === jQuery ) {\n\t\t\twindow.$ = _$;\n\t\t}\n\n\t\tif ( deep && window.jQuery === jQuery ) {\n\t\t\twindow.jQuery = _jQuery;\n\t\t}\n\n\t\treturn jQuery;\n\t},\n\n\t// Is the DOM ready to be used? Set to true once it occurs.\n\tisReady: false,\n\n\t// A counter to track how many items to wait for before\n\t// the ready event fires. See #6781\n\treadyWait: 1,\n\n\t// Hold (or release) the ready event\n\tholdReady: function( hold ) {\n\t\tif ( hold ) {\n\t\t\tjQuery.readyWait++;\n\t\t} else {\n\t\t\tjQuery.ready( true );\n\t\t}\n\t},\n\n\t// Handle when the DOM is ready\n\tready: function( wait ) {\n\n\t\t// Abort if there are pending holds or we're already ready\n\t\tif ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Remember that the DOM is ready\n\t\tjQuery.isReady = true;\n\n\t\t// If a normal DOM Ready event fired, decrement, and wait if need be\n\t\tif ( wait !== true && --jQuery.readyWait > 0 ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// If there are functions bound, to execute\n\t\treadyList.resolveWith( document, [ jQuery ] );\n\n\t\t// Trigger any bound ready events\n\t\tif ( jQuery.fn.trigger ) {\n\t\t\tjQuery( document ).trigger(\"ready\").off(\"ready\");\n\t\t}\n\t},\n\n\t// See test/unit/core.js for details concerning isFunction.\n\t// Since version 1.3, DOM methods and functions like alert\n\t// aren't supported. They return false on IE (#2968).\n\tisFunction: function( obj ) {\n\t\treturn jQuery.type(obj) === \"function\";\n\t},\n\n\tisArray: Array.isArray,\n\n\tisWindow: function( obj ) {\n\t\treturn obj != null && obj === obj.window;\n\t},\n\n\tisNumeric: function( obj ) {\n\t\treturn !isNaN( parseFloat(obj) ) && isFinite( obj );\n\t},\n\n\ttype: function( obj ) {\n\t\tif ( obj == null ) {\n\t\t\treturn String( obj );\n\t\t}\n\t\t// Support: Safari <= 5.1 (functionish RegExp)\n\t\treturn typeof obj === \"object\" || typeof obj === \"function\" ?\n\t\t\tclass2type[ core_toString.call(obj) ] || \"object\" :\n\t\t\ttypeof obj;\n\t},\n\n\tisPlainObject: function( obj ) {\n\t\t// Not plain objects:\n\t\t// - Any object or value whose internal [[Class]] property is not \"[object Object]\"\n\t\t// - DOM nodes\n\t\t// - window\n\t\tif ( jQuery.type( obj ) !== \"object\" || obj.nodeType || jQuery.isWindow( obj ) ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Support: Firefox <20\n\t\t// The try/catch suppresses exceptions thrown when attempting to access\n\t\t// the \"constructor\" property of certain host objects, ie. |window.location|\n\t\t// https://bugzilla.mozilla.org/show_bug.cgi?id=814622\n\t\ttry {\n\t\t\tif ( obj.constructor &&\n\t\t\t\t\t!core_hasOwn.call( obj.constructor.prototype, \"isPrototypeOf\" ) ) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t} catch ( e ) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// If the function hasn't returned already, we're confident that\n\t\t// |obj| is a plain object, created by {} or constructed with new Object\n\t\treturn true;\n\t},\n\n\tisEmptyObject: function( obj ) {\n\t\tvar name;\n\t\tfor ( name in obj ) {\n\t\t\treturn false;\n\t\t}\n\t\treturn true;\n\t},\n\n\terror: function( msg ) {\n\t\tthrow new Error( msg );\n\t},\n\n\t// data: string of html\n\t// context (optional): If specified, the fragment will be created in this context, defaults to document\n\t// keepScripts (optional): If true, will include scripts passed in the html string\n\tparseHTML: function( data, context, keepScripts ) {\n\t\tif ( !data || typeof data !== \"string\" ) {\n\t\t\treturn null;\n\t\t}\n\t\tif ( typeof context === \"boolean\" ) {\n\t\t\tkeepScripts = context;\n\t\t\tcontext = false;\n\t\t}\n\t\tcontext = context || document;\n\n\t\tvar parsed = rsingleTag.exec( data ),\n\t\t\tscripts = !keepScripts && [];\n\n\t\t// Single tag\n\t\tif ( parsed ) {\n\t\t\treturn [ context.createElement( parsed[1] ) ];\n\t\t}\n\n\t\tparsed = jQuery.buildFragment( [ data ], context, scripts );\n\n\t\tif ( scripts ) {\n\t\t\tjQuery( scripts ).remove();\n\t\t}\n\n\t\treturn jQuery.merge( [], parsed.childNodes );\n\t},\n\n\tparseJSON: JSON.parse,\n\n\t// Cross-browser xml parsing\n\tparseXML: function( data ) {\n\t\tvar xml, tmp;\n\t\tif ( !data || typeof data !== \"string\" ) {\n\t\t\treturn null;\n\t\t}\n\n\t\t// Support: IE9\n\t\ttry {\n\t\t\ttmp = new DOMParser();\n\t\t\txml = tmp.parseFromString( data , \"text/xml\" );\n\t\t} catch ( e ) {\n\t\t\txml = undefined;\n\t\t}\n\n\t\tif ( !xml || xml.getElementsByTagName( \"parsererror\" ).length ) {\n\t\t\tjQuery.error( \"Invalid XML: \" + data );\n\t\t}\n\t\treturn xml;\n\t},\n\n\tnoop: function() {},\n\n\t// Evaluates a script in a global context\n\tglobalEval: function( code ) {\n\t\tvar script,\n\t\t\t\tindirect = eval;\n\n\t\tcode = jQuery.trim( code );\n\n\t\tif ( code ) {\n\t\t\t// If the code includes a valid, prologue position\n\t\t\t// strict mode pragma, execute code by injecting a\n\t\t\t// script tag into the document.\n\t\t\tif ( code.indexOf(\"use strict\") === 1 ) {\n\t\t\t\tscript = document.createElement(\"script\");\n\t\t\t\tscript.text = code;\n\t\t\t\tdocument.head.appendChild( script ).parentNode.removeChild( script );\n\t\t\t} else {\n\t\t\t// Otherwise, avoid the DOM node creation, insertion\n\t\t\t// and removal by using an indirect global eval\n\t\t\t\tindirect( code );\n\t\t\t}\n\t\t}\n\t},\n\n\t// Convert dashed to camelCase; used by the css and data modules\n\t// Microsoft forgot to hump their vendor prefix (#9572)\n\tcamelCase: function( string ) {\n\t\treturn string.replace( rmsPrefix, \"ms-\" ).replace( rdashAlpha, fcamelCase );\n\t},\n\n\tnodeName: function( elem, name ) {\n\t\treturn elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();\n\t},\n\n\t// args is for internal usage only\n\teach: function( obj, callback, args ) {\n\t\tvar value,\n\t\t\ti = 0,\n\t\t\tlength = obj.length,\n\t\t\tisArray = isArraylike( obj );\n\n\t\tif ( args ) {\n\t\t\tif ( isArray ) {\n\t\t\t\tfor ( ; i < length; i++ ) {\n\t\t\t\t\tvalue = callback.apply( obj[ i ], args );\n\n\t\t\t\t\tif ( value === false ) {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tfor ( i in obj ) {\n\t\t\t\t\tvalue = callback.apply( obj[ i ], args );\n\n\t\t\t\t\tif ( value === false ) {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t// A special, fast, case for the most common use of each\n\t\t} else {\n\t\t\tif ( isArray ) {\n\t\t\t\tfor ( ; i < length; i++ ) {\n\t\t\t\t\tvalue = callback.call( obj[ i ], i, obj[ i ] );\n\n\t\t\t\t\tif ( value === false ) {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tfor ( i in obj ) {\n\t\t\t\t\tvalue = callback.call( obj[ i ], i, obj[ i ] );\n\n\t\t\t\t\tif ( value === false ) {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn obj;\n\t},\n\n\ttrim: function( text ) {\n\t\treturn text == null ? \"\" : core_trim.call( text );\n\t},\n\n\t// results is for internal usage only\n\tmakeArray: function( arr, results ) {\n\t\tvar ret = results || [];\n\n\t\tif ( arr != null ) {\n\t\t\tif ( isArraylike( Object(arr) ) ) {\n\t\t\t\tjQuery.merge( ret,\n\t\t\t\t\ttypeof arr === \"string\" ?\n\t\t\t\t\t[ arr ] : arr\n\t\t\t\t);\n\t\t\t} else {\n\t\t\t\tcore_push.call( ret, arr );\n\t\t\t}\n\t\t}\n\n\t\treturn ret;\n\t},\n\n\tinArray: function( elem, arr, i ) {\n\t\treturn arr == null ? -1 : core_indexOf.call( arr, elem, i );\n\t},\n\n\tmerge: function( first, second ) {\n\t\tvar l = second.length,\n\t\t\ti = first.length,\n\t\t\tj = 0;\n\n\t\tif ( typeof l === \"number\" ) {\n\t\t\tfor ( ; j < l; j++ ) {\n\t\t\t\tfirst[ i++ ] = second[ j ];\n\t\t\t}\n\t\t} else {\n\t\t\twhile ( second[j] !== undefined ) {\n\t\t\t\tfirst[ i++ ] = second[ j++ ];\n\t\t\t}\n\t\t}\n\n\t\tfirst.length = i;\n\n\t\treturn first;\n\t},\n\n\tgrep: function( elems, callback, inv ) {\n\t\tvar retVal,\n\t\t\tret = [],\n\t\t\ti = 0,\n\t\t\tlength = elems.length;\n\t\tinv = !!inv;\n\n\t\t// Go through the array, only saving the items\n\t\t// that pass the validator function\n\t\tfor ( ; i < length; i++ ) {\n\t\t\tretVal = !!callback( elems[ i ], i );\n\t\t\tif ( inv !== retVal ) {\n\t\t\t\tret.push( elems[ i ] );\n\t\t\t}\n\t\t}\n\n\t\treturn ret;\n\t},\n\n\t// arg is for internal usage only\n\tmap: function( elems, callback, arg ) {\n\t\tvar value,\n\t\t\ti = 0,\n\t\t\tlength = elems.length,\n\t\t\tisArray = isArraylike( elems ),\n\t\t\tret = [];\n\n\t\t// Go through the array, translating each of the items to their\n\t\tif ( isArray ) {\n\t\t\tfor ( ; i < length; i++ ) {\n\t\t\t\tvalue = callback( elems[ i ], i, arg );\n\n\t\t\t\tif ( value != null ) {\n\t\t\t\t\tret[ ret.length ] = value;\n\t\t\t\t}\n\t\t\t}\n\n\t\t// Go through every key on the object,\n\t\t} else {\n\t\t\tfor ( i in elems ) {\n\t\t\t\tvalue = callback( elems[ i ], i, arg );\n\n\t\t\t\tif ( value != null ) {\n\t\t\t\t\tret[ ret.length ] = value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Flatten any nested arrays\n\t\treturn core_concat.apply( [], ret );\n\t},\n\n\t// A global GUID counter for objects\n\tguid: 1,\n\n\t// Bind a function to a context, optionally partially applying any\n\t// arguments.\n\tproxy: function( fn, context ) {\n\t\tvar tmp, args, proxy;\n\n\t\tif ( typeof context === \"string\" ) {\n\t\t\ttmp = fn[ context ];\n\t\t\tcontext = fn;\n\t\t\tfn = tmp;\n\t\t}\n\n\t\t// Quick check to determine if target is callable, in the spec\n\t\t// this throws a TypeError, but we will just return undefined.\n\t\tif ( !jQuery.isFunction( fn ) ) {\n\t\t\treturn undefined;\n\t\t}\n\n\t\t// Simulated bind\n\t\targs = core_slice.call( arguments, 2 );\n\t\tproxy = function() {\n\t\t\treturn fn.apply( context || this, args.concat( core_slice.call( arguments ) ) );\n\t\t};\n\n\t\t// Set the guid of unique handler to the same of original handler, so it can be removed\n\t\tproxy.guid = fn.guid = fn.guid || jQuery.guid++;\n\n\t\treturn proxy;\n\t},\n\n\t// Multifunctional method to get and set values of a collection\n\t// The value/s can optionally be executed if it's a function\n\taccess: function( elems, fn, key, value, chainable, emptyGet, raw ) {\n\t\tvar i = 0,\n\t\t\tlength = elems.length,\n\t\t\tbulk = key == null;\n\n\t\t// Sets many values\n\t\tif ( jQuery.type( key ) === \"object\" ) {\n\t\t\tchainable = true;\n\t\t\tfor ( i in key ) {\n\t\t\t\tjQuery.access( elems, fn, i, key[i], true, emptyGet, raw );\n\t\t\t}\n\n\t\t// Sets one value\n\t\t} else if ( value !== undefined ) {\n\t\t\tchainable = true;\n\n\t\t\tif ( !jQuery.isFunction( value ) ) {\n\t\t\t\traw = true;\n\t\t\t}\n\n\t\t\tif ( bulk ) {\n\t\t\t\t// Bulk operations run against the entire set\n\t\t\t\tif ( raw ) {\n\t\t\t\t\tfn.call( elems, value );\n\t\t\t\t\tfn = null;\n\n\t\t\t\t// ...except when executing function values\n\t\t\t\t} else {\n\t\t\t\t\tbulk = fn;\n\t\t\t\t\tfn = function( elem, key, value ) {\n\t\t\t\t\t\treturn bulk.call( jQuery( elem ), value );\n\t\t\t\t\t};\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( fn ) {\n\t\t\t\tfor ( ; i < length; i++ ) {\n\t\t\t\t\tfn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn chainable ?\n\t\t\telems :\n\n\t\t\t// Gets\n\t\t\tbulk ?\n\t\t\t\tfn.call( elems ) :\n\t\t\t\tlength ? fn( elems[0], key ) : emptyGet;\n\t},\n\n\tnow: Date.now,\n\n\t// A method for quickly swapping in/out CSS properties to get correct calculations.\n\t// Note: this method belongs to the css module but it's needed here for the support module.\n\t// If support gets modularized, this method should be moved back to the css module.\n\tswap: function( elem, options, callback, args ) {\n\t\tvar ret, name,\n\t\t\told = {};\n\n\t\t// Remember the old values, and insert the new ones\n\t\tfor ( name in options ) {\n\t\t\told[ name ] = elem.style[ name ];\n\t\t\telem.style[ name ] = options[ name ];\n\t\t}\n\n\t\tret = callback.apply( elem, args || [] );\n\n\t\t// Revert the old values\n\t\tfor ( name in options ) {\n\t\t\telem.style[ name ] = old[ name ];\n\t\t}\n\n\t\treturn ret;\n\t}\n});\n\njQuery.ready.promise = function( obj ) {\n\tif ( !readyList ) {\n\n\t\treadyList = jQuery.Deferred();\n\n\t\t// Catch cases where $(document).ready() is called after the browser event has already occurred.\n\t\t// we once tried to use readyState \"interactive\" here, but it caused issues like the one\n\t\t// discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15\n\t\tif ( document.readyState === \"complete\" ) {\n\t\t\t// Handle it asynchronously to allow scripts the opportunity to delay ready\n\t\t\tsetTimeout( jQuery.ready );\n\n\t\t} else {\n\n\t\t\t// Use the handy event callback\n\t\t\tdocument.addEventListener( \"DOMContentLoaded\", completed, false );\n\n\t\t\t// A fallback to window.onload, that will always work\n\t\t\twindow.addEventListener( \"load\", completed, false );\n\t\t}\n\t}\n\treturn readyList.promise( obj );\n};\n\n// Populate the class2type map\njQuery.each(\"Boolean Number String Function Array Date RegExp Object Error\".split(\" \"), function(i, name) {\n\tclass2type[ \"[object \" + name + \"]\" ] = name.toLowerCase();\n});\n\nfunction isArraylike( obj ) {\n\tvar length = obj.length,\n\t\ttype = jQuery.type( obj );\n\n\tif ( jQuery.isWindow( obj ) ) {\n\t\treturn false;\n\t}\n\n\tif ( obj.nodeType === 1 && length ) {\n\t\treturn true;\n\t}\n\n\treturn type === \"array\" || type !== \"function\" &&\n\t\t( length === 0 ||\n\t\ttypeof length === \"number\" && length > 0 && ( length - 1 ) in obj );\n}\n\n// All jQuery objects should point back to these\nrootjQuery = jQuery(document);\n/*!\n * Sizzle CSS Selector Engine v1.9.4-pre\n * http://sizzlejs.com/\n *\n * Copyright 2013 jQuery Foundation, Inc. and other contributors\n * Released under the MIT license\n * http://jquery.org/license\n *\n * Date: 2013-06-03\n */\n(function( window, undefined ) {\n\nvar i,\n\tsupport,\n\tcachedruns,\n\tExpr,\n\tgetText,\n\tisXML,\n\tcompile,\n\toutermostContext,\n\tsortInput,\n\n\t// Local document vars\n\tsetDocument,\n\tdocument,\n\tdocElem,\n\tdocumentIsHTML,\n\trbuggyQSA,\n\trbuggyMatches,\n\tmatches,\n\tcontains,\n\n\t// Instance-specific data\n\texpando = \"sizzle\" + -(new Date()),\n\tpreferredDoc = window.document,\n\tdirruns = 0,\n\tdone = 0,\n\tclassCache = createCache(),\n\ttokenCache = createCache(),\n\tcompilerCache = createCache(),\n\thasDuplicate = false,\n\tsortOrder = function( a, b ) {\n\t\tif ( a === b ) {\n\t\t\thasDuplicate = true;\n\t\t\treturn 0;\n\t\t}\n\t\treturn 0;\n\t},\n\n\t// General-purpose constants\n\tstrundefined = typeof undefined,\n\tMAX_NEGATIVE = 1 << 31,\n\n\t// Instance methods\n\thasOwn = ({}).hasOwnProperty,\n\tarr = [],\n\tpop = arr.pop,\n\tpush_native = arr.push,\n\tpush = arr.push,\n\tslice = arr.slice,\n\t// Use a stripped-down indexOf if we can't use a native one\n\tindexOf = arr.indexOf || function( elem ) {\n\t\tvar i = 0,\n\t\t\tlen = this.length;\n\t\tfor ( ; i < len; i++ ) {\n\t\t\tif ( this[i] === elem ) {\n\t\t\t\treturn i;\n\t\t\t}\n\t\t}\n\t\treturn -1;\n\t},\n\n\tbooleans = \"checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped\",\n\n\t// Regular expressions\n\n\t// Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace\n\twhitespace = \"[\\\\x20\\\\t\\\\r\\\\n\\\\f]\",\n\t// http://www.w3.org/TR/css3-syntax/#characters\n\tcharacterEncoding = \"(?:\\\\\\\\.|[\\\\w-]|[^\\\\x00-\\\\xa0])+\",\n\n\t// Loosely modeled on CSS identifier characters\n\t// An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors\n\t// Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier\n\tidentifier = characterEncoding.replace( \"w\", \"w#\" ),\n\n\t// Acceptable operators http://www.w3.org/TR/selectors/#attribute-selectors\n\tattributes = \"\\\\[\" + whitespace + \"*(\" + characterEncoding + \")\" + whitespace +\n\t\t\"*(?:([*^$|!~]?=)\" + whitespace + \"*(?:(['\\\"])((?:\\\\\\\\.|[^\\\\\\\\])*?)\\\\3|(\" + identifier + \")|)|)\" + whitespace + \"*\\\\]\",\n\n\t// Prefer arguments quoted,\n\t// then not containing pseudos/brackets,\n\t// then attribute selectors/non-parenthetical expressions,\n\t// then anything else\n\t// These preferences are here to reduce the number of selectors\n\t// needing tokenize in the PSEUDO preFilter\n\tpseudos = \":(\" + characterEncoding + \")(?:\\\\(((['\\\"])((?:\\\\\\\\.|[^\\\\\\\\])*?)\\\\3|((?:\\\\\\\\.|[^\\\\\\\\()[\\\\]]|\" + attributes.replace( 3, 8 ) + \")*)|.*)\\\\)|)\",\n\n\t// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter\n\trtrim = new RegExp( \"^\" + whitespace + \"+|((?:^|[^\\\\\\\\])(?:\\\\\\\\.)*)\" + whitespace + \"+$\", \"g\" ),\n\n\trcomma = new RegExp( \"^\" + whitespace + \"*,\" + whitespace + \"*\" ),\n\trcombinators = new RegExp( \"^\" + whitespace + \"*([>+~]|\" + whitespace + \")\" + whitespace + \"*\" ),\n\n\trsibling = new RegExp( whitespace + \"*[+~]\" ),\n\trattributeQuotes = new RegExp( \"=\" + whitespace + \"*([^\\\\]'\\\"]*)\" + whitespace + \"*\\\\]\", \"g\" ),\n\n\trpseudo = new RegExp( pseudos ),\n\tridentifier = new RegExp( \"^\" + identifier + \"$\" ),\n\n\tmatchExpr = {\n\t\t\"ID\": new RegExp( \"^#(\" + characterEncoding + \")\" ),\n\t\t\"CLASS\": new RegExp( \"^\\\\.(\" + characterEncoding + \")\" ),\n\t\t\"TAG\": new RegExp( \"^(\" + characterEncoding.replace( \"w\", \"w*\" ) + \")\" ),\n\t\t\"ATTR\": new RegExp( \"^\" + attributes ),\n\t\t\"PSEUDO\": new RegExp( \"^\" + pseudos ),\n\t\t\"CHILD\": new RegExp( \"^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\\\(\" + whitespace +\n\t\t\t\"*(even|odd|(([+-]|)(\\\\d*)n|)\" + whitespace + \"*(?:([+-]|)\" + whitespace +\n\t\t\t\"*(\\\\d+)|))\" + whitespace + \"*\\\\)|)\", \"i\" ),\n\t\t\"bool\": new RegExp( \"^(?:\" + booleans + \")$\", \"i\" ),\n\t\t// For use in libraries implementing .is()\n\t\t// We use this for POS matching in `select`\n\t\t\"needsContext\": new RegExp( \"^\" + whitespace + \"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\\\(\" +\n\t\t\twhitespace + \"*((?:-\\\\d)?\\\\d*)\" + whitespace + \"*\\\\)|)(?=[^-]|$)\", \"i\" )\n\t},\n\n\trnative = /^[^{]+\\{\\s*\\[native \\w/,\n\n\t// Easily-parseable/retrievable ID or TAG or CLASS selectors\n\trquickExpr = /^(?:#([\\w-]+)|(\\w+)|\\.([\\w-]+))$/,\n\n\trinputs = /^(?:input|select|textarea|button)$/i,\n\trheader = /^h\\d$/i,\n\n\trescape = /'|\\\\/g,\n\n\t// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters\n\trunescape = new RegExp( \"\\\\\\\\([\\\\da-f]{1,6}\" + whitespace + \"?|(\" + whitespace + \")|.)\", \"ig\" ),\n\tfunescape = function( _, escaped, escapedWhitespace ) {\n\t\tvar high = \"0x\" + escaped - 0x10000;\n\t\t// NaN means non-codepoint\n\t\t// Support: Firefox\n\t\t// Workaround erroneous numeric interpretation of +\"0x\"\n\t\treturn high !== high || escapedWhitespace ?\n\t\t\tescaped :\n\t\t\t// BMP codepoint\n\t\t\thigh < 0 ?\n\t\t\t\tString.fromCharCode( high + 0x10000 ) :\n\t\t\t\t// Supplemental Plane codepoint (surrogate pair)\n\t\t\t\tString.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );\n\t};\n\n// Optimize for push.apply( _, NodeList )\ntry {\n\tpush.apply(\n\t\t(arr = slice.call( preferredDoc.childNodes )),\n\t\tpreferredDoc.childNodes\n\t);\n\t// Support: Android<4.0\n\t// Detect silently failing push.apply\n\tarr[ preferredDoc.childNodes.length ].nodeType;\n} catch ( e ) {\n\tpush = { apply: arr.length ?\n\n\t\t// Leverage slice if possible\n\t\tfunction( target, els ) {\n\t\t\tpush_native.apply( target, slice.call(els) );\n\t\t} :\n\n\t\t// Support: IE<9\n\t\t// Otherwise append directly\n\t\tfunction( target, els ) {\n\t\t\tvar j = target.length,\n\t\t\t\ti = 0;\n\t\t\t// Can't trust NodeList.length\n\t\t\twhile ( (target[j++] = els[i++]) ) {}\n\t\t\ttarget.length = j - 1;\n\t\t}\n\t};\n}\n\nfunction Sizzle( selector, context, results, seed ) {\n\tvar match, elem, m, nodeType,\n\t\t// QSA vars\n\t\ti, groups, old, nid, newContext, newSelector;\n\n\tif ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {\n\t\tsetDocument( context );\n\t}\n\n\tcontext = context || document;\n\tresults = results || [];\n\n\tif ( !selector || typeof selector !== \"string\" ) {\n\t\treturn results;\n\t}\n\n\tif ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {\n\t\treturn [];\n\t}\n\n\tif ( documentIsHTML && !seed ) {\n\n\t\t// Shortcuts\n\t\tif ( (match = rquickExpr.exec( selector )) ) {\n\t\t\t// Speed-up: Sizzle(\"#ID\")\n\t\t\tif ( (m = match[1]) ) {\n\t\t\t\tif ( nodeType === 9 ) {\n\t\t\t\t\telem = context.getElementById( m );\n\t\t\t\t\t// Check parentNode to catch when Blackberry 4.6 returns\n\t\t\t\t\t// nodes that are no longer in the document #6963\n\t\t\t\t\tif ( elem && elem.parentNode ) {\n\t\t\t\t\t\t// Handle the case where IE, Opera, and Webkit return items\n\t\t\t\t\t\t// by name instead of ID\n\t\t\t\t\t\tif ( elem.id === m ) {\n\t\t\t\t\t\t\tresults.push( elem );\n\t\t\t\t\t\t\treturn results;\n\t\t\t\t\t\t}\n\t\t\t\t\t} else {\n\t\t\t\t\t\treturn results;\n\t\t\t\t\t}\n\t\t\t\t} else {\n\t\t\t\t\t// Context is not a document\n\t\t\t\t\tif ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&\n\t\t\t\t\t\tcontains( context, elem ) && elem.id === m ) {\n\t\t\t\t\t\tresults.push( elem );\n\t\t\t\t\t\treturn results;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t// Speed-up: Sizzle(\"TAG\")\n\t\t\t} else if ( match[2] ) {\n\t\t\t\tpush.apply( results, context.getElementsByTagName( selector ) );\n\t\t\t\treturn results;\n\n\t\t\t// Speed-up: Sizzle(\".CLASS\")\n\t\t\t} else if ( (m = match[3]) && support.getElementsByClassName && context.getElementsByClassName ) {\n\t\t\t\tpush.apply( results, context.getElementsByClassName( m ) );\n\t\t\t\treturn results;\n\t\t\t}\n\t\t}\n\n\t\t// QSA path\n\t\tif ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {\n\t\t\tnid = old = expando;\n\t\t\tnewContext = context;\n\t\t\tnewSelector = nodeType === 9 && selector;\n\n\t\t\t// qSA works strangely on Element-rooted queries\n\t\t\t// We can work around this by specifying an extra ID on the root\n\t\t\t// and working up from there (Thanks to Andrew Dupont for the technique)\n\t\t\t// IE 8 doesn't work on object elements\n\t\t\tif ( nodeType === 1 && context.nodeName.toLowerCase() !== \"object\" ) {\n\t\t\t\tgroups = tokenize( selector );\n\n\t\t\t\tif ( (old = context.getAttribute(\"id\")) ) {\n\t\t\t\t\tnid = old.replace( rescape, \"\\\\$&\" );\n\t\t\t\t} else {\n\t\t\t\t\tcontext.setAttribute( \"id\", nid );\n\t\t\t\t}\n\t\t\t\tnid = \"[id='\" + nid + \"'] \";\n\n\t\t\t\ti = groups.length;\n\t\t\t\twhile ( i-- ) {\n\t\t\t\t\tgroups[i] = nid + toSelector( groups[i] );\n\t\t\t\t}\n\t\t\t\tnewContext = rsibling.test( selector ) && context.parentNode || context;\n\t\t\t\tnewSelector = groups.join(\",\");\n\t\t\t}\n\n\t\t\tif ( newSelector ) {\n\t\t\t\ttry {\n\t\t\t\t\tpush.apply( results,\n\t\t\t\t\t\tnewContext.querySelectorAll( newSelector )\n\t\t\t\t\t);\n\t\t\t\t\treturn results;\n\t\t\t\t} catch(qsaError) {\n\t\t\t\t} finally {\n\t\t\t\t\tif ( !old ) {\n\t\t\t\t\t\tcontext.removeAttribute(\"id\");\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// All others\n\treturn select( selector.replace( rtrim, \"$1\" ), context, results, seed );\n}\n\n/**\n * Create key-value caches of limited size\n * @returns {Function(string, Object)} Returns the Object data after storing it on itself with\n *\tproperty name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)\n *\tdeleting the oldest entry\n */\nfunction createCache() {\n\tvar keys = [];\n\n\tfunction cache( key, value ) {\n\t\t// Use (key + \" \") to avoid collision with native prototype properties (see Issue #157)\n\t\tif ( keys.push( key += \" \" ) > Expr.cacheLength ) {\n\t\t\t// Only keep the most recent entries\n\t\t\tdelete cache[ keys.shift() ];\n\t\t}\n\t\treturn (cache[ key ] = value);\n\t}\n\treturn cache;\n}\n\n/**\n * Mark a function for special use by Sizzle\n * @param {Function} fn The function to mark\n */\nfunction markFunction( fn ) {\n\tfn[ expando ] = true;\n\treturn fn;\n}\n\n/**\n * Support testing using an element\n * @param {Function} fn Passed the created div and expects a boolean result\n */\nfunction assert( fn ) {\n\tvar div = document.createElement(\"div\");\n\n\ttry {\n\t\treturn !!fn( div );\n\t} catch (e) {\n\t\treturn false;\n\t} finally {\n\t\t// Remove from its parent by default\n\t\tif ( div.parentNode ) {\n\t\t\tdiv.parentNode.removeChild( div );\n\t\t}\n\t\t// release memory in IE\n\t\tdiv = null;\n\t}\n}\n\n/**\n * Adds the same handler for all of the specified attrs\n * @param {String} attrs Pipe-separated list of attributes\n * @param {Function} handler The method that will be applied\n */\nfunction addHandle( attrs, handler ) {\n\tvar arr = attrs.split(\"|\"),\n\t\ti = attrs.length;\n\n\twhile ( i-- ) {\n\t\tExpr.attrHandle[ arr[i] ] = handler;\n\t}\n}\n\n/**\n * Checks document order of two siblings\n * @param {Element} a\n * @param {Element} b\n * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b\n */\nfunction siblingCheck( a, b ) {\n\tvar cur = b && a,\n\t\tdiff = cur && a.nodeType === 1 && b.nodeType === 1 &&\n\t\t\t( ~b.sourceIndex || MAX_NEGATIVE ) -\n\t\t\t( ~a.sourceIndex || MAX_NEGATIVE );\n\n\t// Use IE sourceIndex if available on both nodes\n\tif ( diff ) {\n\t\treturn diff;\n\t}\n\n\t// Check if b follows a\n\tif ( cur ) {\n\t\twhile ( (cur = cur.nextSibling) ) {\n\t\t\tif ( cur === b ) {\n\t\t\t\treturn -1;\n\t\t\t}\n\t\t}\n\t}\n\n\treturn a ? 1 : -1;\n}\n\n/**\n * Returns a function to use in pseudos for input types\n * @param {String} type\n */\nfunction createInputPseudo( type ) {\n\treturn function( elem ) {\n\t\tvar name = elem.nodeName.toLowerCase();\n\t\treturn name === \"input\" && elem.type === type;\n\t};\n}\n\n/**\n * Returns a function to use in pseudos for buttons\n * @param {String} type\n */\nfunction createButtonPseudo( type ) {\n\treturn function( elem ) {\n\t\tvar name = elem.nodeName.toLowerCase();\n\t\treturn (name === \"input\" || name === \"button\") && elem.type === type;\n\t};\n}\n\n/**\n * Returns a function to use in pseudos for positionals\n * @param {Function} fn\n */\nfunction createPositionalPseudo( fn ) {\n\treturn markFunction(function( argument ) {\n\t\targument = +argument;\n\t\treturn markFunction(function( seed, matches ) {\n\t\t\tvar j,\n\t\t\t\tmatchIndexes = fn( [], seed.length, argument ),\n\t\t\t\ti = matchIndexes.length;\n\n\t\t\t// Match elements found at the specified indexes\n\t\t\twhile ( i-- ) {\n\t\t\t\tif ( seed[ (j = matchIndexes[i]) ] ) {\n\t\t\t\t\tseed[j] = !(matches[j] = seed[j]);\n\t\t\t\t}\n\t\t\t}\n\t\t});\n\t});\n}\n\n/**\n * Detect xml\n * @param {Element|Object} elem An element or a document\n */\nisXML = Sizzle.isXML = function( elem ) {\n\t// documentElement is verified for cases where it doesn't yet exist\n\t// (such as loading iframes in IE - #4833)\n\tvar documentElement = elem && (elem.ownerDocument || elem).documentElement;\n\treturn documentElement ? documentElement.nodeName !== \"HTML\" : false;\n};\n\n// Expose support vars for convenience\nsupport = Sizzle.support = {};\n\n/**\n * Sets document-related variables once based on the current document\n * @param {Element|Object} [doc] An element or document object to use to set the document\n * @returns {Object} Returns the current document\n */\nsetDocument = Sizzle.setDocument = function( node ) {\n\tvar doc = node ? node.ownerDocument || node : preferredDoc,\n\t\tparent = doc.defaultView;\n\n\t// If no document and documentElement is available, return\n\tif ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {\n\t\treturn document;\n\t}\n\n\t// Set our document\n\tdocument = doc;\n\tdocElem = doc.documentElement;\n\n\t// Support tests\n\tdocumentIsHTML = !isXML( doc );\n\n\t// Support: IE>8\n\t// If iframe document is assigned to \"document\" variable and if iframe has been reloaded,\n\t// IE will throw \"permission denied\" error when accessing \"document\" variable, see jQuery #13936\n\t// IE6-8 do not support the defaultView property so parent will be undefined\n\tif ( parent && parent.attachEvent && parent !== parent.top ) {\n\t\tparent.attachEvent( \"onbeforeunload\", function() {\n\t\t\tsetDocument();\n\t\t});\n\t}\n\n\t/* Attributes\n\t---------------------------------------------------------------------- */\n\n\t// Support: IE<8\n\t// Verify that getAttribute really returns attributes and not properties (excepting IE8 booleans)\n\tsupport.attributes = assert(function( div ) {\n\t\tdiv.className = \"i\";\n\t\treturn !div.getAttribute(\"className\");\n\t});\n\n\t/* getElement(s)By*\n\t---------------------------------------------------------------------- */\n\n\t// Check if getElementsByTagName(\"*\") returns only elements\n\tsupport.getElementsByTagName = assert(function( div ) {\n\t\tdiv.appendChild( doc.createComment(\"\") );\n\t\treturn !div.getElementsByTagName(\"*\").length;\n\t});\n\n\t// Check if getElementsByClassName can be trusted\n\tsupport.getElementsByClassName = assert(function( div ) {\n\t\tdiv.innerHTML = \"
\";\n\n\t\t// Support: Safari<4\n\t\t// Catch class over-caching\n\t\tdiv.firstChild.className = \"i\";\n\t\t// Support: Opera<10\n\t\t// Catch gEBCN failure to find non-leading classes\n\t\treturn div.getElementsByClassName(\"i\").length === 2;\n\t});\n\n\t// Support: IE<10\n\t// Check if getElementById returns elements by name\n\t// The broken getElementById methods don't pick up programatically-set names,\n\t// so use a roundabout getElementsByName test\n\tsupport.getById = assert(function( div ) {\n\t\tdocElem.appendChild( div ).id = expando;\n\t\treturn !doc.getElementsByName || !doc.getElementsByName( expando ).length;\n\t});\n\n\t// ID find and filter\n\tif ( support.getById ) {\n\t\tExpr.find[\"ID\"] = function( id, context ) {\n\t\t\tif ( typeof context.getElementById !== strundefined && documentIsHTML ) {\n\t\t\t\tvar m = context.getElementById( id );\n\t\t\t\t// Check parentNode to catch when Blackberry 4.6 returns\n\t\t\t\t// nodes that are no longer in the document #6963\n\t\t\t\treturn m && m.parentNode ? [m] : [];\n\t\t\t}\n\t\t};\n\t\tExpr.filter[\"ID\"] = function( id ) {\n\t\t\tvar attrId = id.replace( runescape, funescape );\n\t\t\treturn function( elem ) {\n\t\t\t\treturn elem.getAttribute(\"id\") === attrId;\n\t\t\t};\n\t\t};\n\t} else {\n\t\t// Support: IE6/7\n\t\t// getElementById is not reliable as a find shortcut\n\t\tdelete Expr.find[\"ID\"];\n\n\t\tExpr.filter[\"ID\"] = function( id ) {\n\t\t\tvar attrId = id.replace( runescape, funescape );\n\t\t\treturn function( elem ) {\n\t\t\t\tvar node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode(\"id\");\n\t\t\t\treturn node && node.value === attrId;\n\t\t\t};\n\t\t};\n\t}\n\n\t// Tag\n\tExpr.find[\"TAG\"] = support.getElementsByTagName ?\n\t\tfunction( tag, context ) {\n\t\t\tif ( typeof context.getElementsByTagName !== strundefined ) {\n\t\t\t\treturn context.getElementsByTagName( tag );\n\t\t\t}\n\t\t} :\n\t\tfunction( tag, context ) {\n\t\t\tvar elem,\n\t\t\t\ttmp = [],\n\t\t\t\ti = 0,\n\t\t\t\tresults = context.getElementsByTagName( tag );\n\n\t\t\t// Filter out possible comments\n\t\t\tif ( tag === \"*\" ) {\n\t\t\t\twhile ( (elem = results[i++]) ) {\n\t\t\t\t\tif ( elem.nodeType === 1 ) {\n\t\t\t\t\t\ttmp.push( elem );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\treturn tmp;\n\t\t\t}\n\t\t\treturn results;\n\t\t};\n\n\t// Class\n\tExpr.find[\"CLASS\"] = support.getElementsByClassName && function( className, context ) {\n\t\tif ( typeof context.getElementsByClassName !== strundefined && documentIsHTML ) {\n\t\t\treturn context.getElementsByClassName( className );\n\t\t}\n\t};\n\n\t/* QSA/matchesSelector\n\t---------------------------------------------------------------------- */\n\n\t// QSA and matchesSelector support\n\n\t// matchesSelector(:active) reports false when true (IE9/Opera 11.5)\n\trbuggyMatches = [];\n\n\t// qSa(:focus) reports false when true (Chrome 21)\n\t// We allow this because of a bug in IE8/9 that throws an error\n\t// whenever `document.activeElement` is accessed on an iframe\n\t// So, we allow :focus to pass through QSA all the time to avoid the IE error\n\t// See http://bugs.jquery.com/ticket/13378\n\trbuggyQSA = [];\n\n\tif ( (support.qsa = rnative.test( doc.querySelectorAll )) ) {\n\t\t// Build QSA regex\n\t\t// Regex strategy adopted from Diego Perini\n\t\tassert(function( div ) {\n\t\t\t// Select is set to empty string on purpose\n\t\t\t// This is to test IE's treatment of not explicitly\n\t\t\t// setting a boolean content attribute,\n\t\t\t// since its presence should be enough\n\t\t\t// http://bugs.jquery.com/ticket/12359\n\t\t\tdiv.innerHTML = \"\";\n\n\t\t\t// Support: IE8\n\t\t\t// Boolean attributes and \"value\" are not treated correctly\n\t\t\tif ( !div.querySelectorAll(\"[selected]\").length ) {\n\t\t\t\trbuggyQSA.push( \"\\\\[\" + whitespace + \"*(?:value|\" + booleans + \")\" );\n\t\t\t}\n\n\t\t\t// Webkit/Opera - :checked should return selected option elements\n\t\t\t// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked\n\t\t\t// IE8 throws error here and will not see later tests\n\t\t\tif ( !div.querySelectorAll(\":checked\").length ) {\n\t\t\t\trbuggyQSA.push(\":checked\");\n\t\t\t}\n\t\t});\n\n\t\tassert(function( div ) {\n\n\t\t\t// Support: Opera 10-12/IE8\n\t\t\t// ^= $= *= and empty values\n\t\t\t// Should not select anything\n\t\t\t// Support: Windows 8 Native Apps\n\t\t\t// The type attribute is restricted during .innerHTML assignment\n\t\t\tvar input = doc.createElement(\"input\");\n\t\t\tinput.setAttribute( \"type\", \"hidden\" );\n\t\t\tdiv.appendChild( input ).setAttribute( \"t\", \"\" );\n\n\t\t\tif ( div.querySelectorAll(\"[t^='']\").length ) {\n\t\t\t\trbuggyQSA.push( \"[*^$]=\" + whitespace + \"*(?:''|\\\"\\\")\" );\n\t\t\t}\n\n\t\t\t// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)\n\t\t\t// IE8 throws error here and will not see later tests\n\t\t\tif ( !div.querySelectorAll(\":enabled\").length ) {\n\t\t\t\trbuggyQSA.push( \":enabled\", \":disabled\" );\n\t\t\t}\n\n\t\t\t// Opera 10-11 does not throw on post-comma invalid pseudos\n\t\t\tdiv.querySelectorAll(\"*,:x\");\n\t\t\trbuggyQSA.push(\",.*:\");\n\t\t});\n\t}\n\n\tif ( (support.matchesSelector = rnative.test( (matches = docElem.webkitMatchesSelector ||\n\t\tdocElem.mozMatchesSelector ||\n\t\tdocElem.oMatchesSelector ||\n\t\tdocElem.msMatchesSelector) )) ) {\n\n\t\tassert(function( div ) {\n\t\t\t// Check to see if it's possible to do matchesSelector\n\t\t\t// on a disconnected node (IE 9)\n\t\t\tsupport.disconnectedMatch = matches.call( div, \"div\" );\n\n\t\t\t// This should fail with an exception\n\t\t\t// Gecko does not error, returns false instead\n\t\t\tmatches.call( div, \"[s!='']:x\" );\n\t\t\trbuggyMatches.push( \"!=\", pseudos );\n\t\t});\n\t}\n\n\trbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join(\"|\") );\n\trbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join(\"|\") );\n\n\t/* Contains\n\t---------------------------------------------------------------------- */\n\n\t// Element contains another\n\t// Purposefully does not implement inclusive descendent\n\t// As in, an element does not contain itself\n\tcontains = rnative.test( docElem.contains ) || docElem.compareDocumentPosition ?\n\t\tfunction( a, b ) {\n\t\t\tvar adown = a.nodeType === 9 ? a.documentElement : a,\n\t\t\t\tbup = b && b.parentNode;\n\t\t\treturn a === bup || !!( bup && bup.nodeType === 1 && (\n\t\t\t\tadown.contains ?\n\t\t\t\t\tadown.contains( bup ) :\n\t\t\t\t\ta.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16\n\t\t\t));\n\t\t} :\n\t\tfunction( a, b ) {\n\t\t\tif ( b ) {\n\t\t\t\twhile ( (b = b.parentNode) ) {\n\t\t\t\t\tif ( b === a ) {\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn false;\n\t\t};\n\n\t/* Sorting\n\t---------------------------------------------------------------------- */\n\n\t// Document order sorting\n\tsortOrder = docElem.compareDocumentPosition ?\n\tfunction( a, b ) {\n\n\t\t// Flag for duplicate removal\n\t\tif ( a === b ) {\n\t\t\thasDuplicate = true;\n\t\t\treturn 0;\n\t\t}\n\n\t\tvar compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b );\n\n\t\tif ( compare ) {\n\t\t\t// Disconnected nodes\n\t\t\tif ( compare & 1 ||\n\t\t\t\t(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {\n\n\t\t\t\t// Choose the first element that is related to our preferred document\n\t\t\t\tif ( a === doc || contains(preferredDoc, a) ) {\n\t\t\t\t\treturn -1;\n\t\t\t\t}\n\t\t\t\tif ( b === doc || contains(preferredDoc, b) ) {\n\t\t\t\t\treturn 1;\n\t\t\t\t}\n\n\t\t\t\t// Maintain original order\n\t\t\t\treturn sortInput ?\n\t\t\t\t\t( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) :\n\t\t\t\t\t0;\n\t\t\t}\n\n\t\t\treturn compare & 4 ? -1 : 1;\n\t\t}\n\n\t\t// Not directly comparable, sort on existence of method\n\t\treturn a.compareDocumentPosition ? -1 : 1;\n\t} :\n\tfunction( a, b ) {\n\t\tvar cur,\n\t\t\ti = 0,\n\t\t\taup = a.parentNode,\n\t\t\tbup = b.parentNode,\n\t\t\tap = [ a ],\n\t\t\tbp = [ b ];\n\n\t\t// Exit early if the nodes are identical\n\t\tif ( a === b ) {\n\t\t\thasDuplicate = true;\n\t\t\treturn 0;\n\n\t\t// Parentless nodes are either documents or disconnected\n\t\t} else if ( !aup || !bup ) {\n\t\t\treturn a === doc ? -1 :\n\t\t\t\tb === doc ? 1 :\n\t\t\t\taup ? -1 :\n\t\t\t\tbup ? 1 :\n\t\t\t\tsortInput ?\n\t\t\t\t( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) :\n\t\t\t\t0;\n\n\t\t// If the nodes are siblings, we can do a quick check\n\t\t} else if ( aup === bup ) {\n\t\t\treturn siblingCheck( a, b );\n\t\t}\n\n\t\t// Otherwise we need full lists of their ancestors for comparison\n\t\tcur = a;\n\t\twhile ( (cur = cur.parentNode) ) {\n\t\t\tap.unshift( cur );\n\t\t}\n\t\tcur = b;\n\t\twhile ( (cur = cur.parentNode) ) {\n\t\t\tbp.unshift( cur );\n\t\t}\n\n\t\t// Walk down the tree looking for a discrepancy\n\t\twhile ( ap[i] === bp[i] ) {\n\t\t\ti++;\n\t\t}\n\n\t\treturn i ?\n\t\t\t// Do a sibling check if the nodes have a common ancestor\n\t\t\tsiblingCheck( ap[i], bp[i] ) :\n\n\t\t\t// Otherwise nodes in our document sort first\n\t\t\tap[i] === preferredDoc ? -1 :\n\t\t\tbp[i] === preferredDoc ? 1 :\n\t\t\t0;\n\t};\n\n\treturn doc;\n};\n\nSizzle.matches = function( expr, elements ) {\n\treturn Sizzle( expr, null, null, elements );\n};\n\nSizzle.matchesSelector = function( elem, expr ) {\n\t// Set document vars if needed\n\tif ( ( elem.ownerDocument || elem ) !== document ) {\n\t\tsetDocument( elem );\n\t}\n\n\t// Make sure that attribute selectors are quoted\n\texpr = expr.replace( rattributeQuotes, \"='$1']\" );\n\n\tif ( support.matchesSelector && documentIsHTML &&\n\t\t( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&\n\t\t( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {\n\n\t\ttry {\n\t\t\tvar ret = matches.call( elem, expr );\n\n\t\t\t// IE 9's matchesSelector returns false on disconnected nodes\n\t\t\tif ( ret || support.disconnectedMatch ||\n\t\t\t\t\t// As well, disconnected nodes are said to be in a document\n\t\t\t\t\t// fragment in IE 9\n\t\t\t\t\telem.document && elem.document.nodeType !== 11 ) {\n\t\t\t\treturn ret;\n\t\t\t}\n\t\t} catch(e) {}\n\t}\n\n\treturn Sizzle( expr, document, null, [elem] ).length > 0;\n};\n\nSizzle.contains = function( context, elem ) {\n\t// Set document vars if needed\n\tif ( ( context.ownerDocument || context ) !== document ) {\n\t\tsetDocument( context );\n\t}\n\treturn contains( context, elem );\n};\n\nSizzle.attr = function( elem, name ) {\n\t// Set document vars if needed\n\tif ( ( elem.ownerDocument || elem ) !== document ) {\n\t\tsetDocument( elem );\n\t}\n\n\tvar fn = Expr.attrHandle[ name.toLowerCase() ],\n\t\t// Don't get fooled by Object.prototype properties (jQuery #13807)\n\t\tval = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?\n\t\t\tfn( elem, name, !documentIsHTML ) :\n\t\t\tundefined;\n\n\treturn val === undefined ?\n\t\tsupport.attributes || !documentIsHTML ?\n\t\t\telem.getAttribute( name ) :\n\t\t\t(val = elem.getAttributeNode(name)) && val.specified ?\n\t\t\t\tval.value :\n\t\t\t\tnull :\n\t\tval;\n};\n\nSizzle.error = function( msg ) {\n\tthrow new Error( \"Syntax error, unrecognized expression: \" + msg );\n};\n\n/**\n * Document sorting and removing duplicates\n * @param {ArrayLike} results\n */\nSizzle.uniqueSort = function( results ) {\n\tvar elem,\n\t\tduplicates = [],\n\t\tj = 0,\n\t\ti = 0;\n\n\t// Unless we *know* we can detect duplicates, assume their presence\n\thasDuplicate = !support.detectDuplicates;\n\tsortInput = !support.sortStable && results.slice( 0 );\n\tresults.sort( sortOrder );\n\n\tif ( hasDuplicate ) {\n\t\twhile ( (elem = results[i++]) ) {\n\t\t\tif ( elem === results[ i ] ) {\n\t\t\t\tj = duplicates.push( i );\n\t\t\t}\n\t\t}\n\t\twhile ( j-- ) {\n\t\t\tresults.splice( duplicates[ j ], 1 );\n\t\t}\n\t}\n\n\treturn results;\n};\n\n/**\n * Utility function for retrieving the text value of an array of DOM nodes\n * @param {Array|Element} elem\n */\ngetText = Sizzle.getText = function( elem ) {\n\tvar node,\n\t\tret = \"\",\n\t\ti = 0,\n\t\tnodeType = elem.nodeType;\n\n\tif ( !nodeType ) {\n\t\t// If no nodeType, this is expected to be an array\n\t\tfor ( ; (node = elem[i]); i++ ) {\n\t\t\t// Do not traverse comment nodes\n\t\t\tret += getText( node );\n\t\t}\n\t} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {\n\t\t// Use textContent for elements\n\t\t// innerText usage removed for consistency of new lines (see #11153)\n\t\tif ( typeof elem.textContent === \"string\" ) {\n\t\t\treturn elem.textContent;\n\t\t} else {\n\t\t\t// Traverse its children\n\t\t\tfor ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {\n\t\t\t\tret += getText( elem );\n\t\t\t}\n\t\t}\n\t} else if ( nodeType === 3 || nodeType === 4 ) {\n\t\treturn elem.nodeValue;\n\t}\n\t// Do not include comment or processing instruction nodes\n\n\treturn ret;\n};\n\nExpr = Sizzle.selectors = {\n\n\t// Can be adjusted by the user\n\tcacheLength: 50,\n\n\tcreatePseudo: markFunction,\n\n\tmatch: matchExpr,\n\n\tattrHandle: {},\n\n\tfind: {},\n\n\trelative: {\n\t\t\">\": { dir: \"parentNode\", first: true },\n\t\t\" \": { dir: \"parentNode\" },\n\t\t\"+\": { dir: \"previousSibling\", first: true },\n\t\t\"~\": { dir: \"previousSibling\" }\n\t},\n\n\tpreFilter: {\n\t\t\"ATTR\": function( match ) {\n\t\t\tmatch[1] = match[1].replace( runescape, funescape );\n\n\t\t\t// Move the given value to match[3] whether quoted or unquoted\n\t\t\tmatch[3] = ( match[4] || match[5] || \"\" ).replace( runescape, funescape );\n\n\t\t\tif ( match[2] === \"~=\" ) {\n\t\t\t\tmatch[3] = \" \" + match[3] + \" \";\n\t\t\t}\n\n\t\t\treturn match.slice( 0, 4 );\n\t\t},\n\n\t\t\"CHILD\": function( match ) {\n\t\t\t/* matches from matchExpr[\"CHILD\"]\n\t\t\t\t1 type (only|nth|...)\n\t\t\t\t2 what (child|of-type)\n\t\t\t\t3 argument (even|odd|\\d*|\\d*n([+-]\\d+)?|...)\n\t\t\t\t4 xn-component of xn+y argument ([+-]?\\d*n|)\n\t\t\t\t5 sign of xn-component\n\t\t\t\t6 x of xn-component\n\t\t\t\t7 sign of y-component\n\t\t\t\t8 y of y-component\n\t\t\t*/\n\t\t\tmatch[1] = match[1].toLowerCase();\n\n\t\t\tif ( match[1].slice( 0, 3 ) === \"nth\" ) {\n\t\t\t\t// nth-* requires argument\n\t\t\t\tif ( !match[3] ) {\n\t\t\t\t\tSizzle.error( match[0] );\n\t\t\t\t}\n\n\t\t\t\t// numeric x and y parameters for Expr.filter.CHILD\n\t\t\t\t// remember that false/true cast respectively to 0/1\n\t\t\t\tmatch[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === \"even\" || match[3] === \"odd\" ) );\n\t\t\t\tmatch[5] = +( ( match[7] + match[8] ) || match[3] === \"odd\" );\n\n\t\t\t// other types prohibit arguments\n\t\t\t} else if ( match[3] ) {\n\t\t\t\tSizzle.error( match[0] );\n\t\t\t}\n\n\t\t\treturn match;\n\t\t},\n\n\t\t\"PSEUDO\": function( match ) {\n\t\t\tvar excess,\n\t\t\t\tunquoted = !match[5] && match[2];\n\n\t\t\tif ( matchExpr[\"CHILD\"].test( match[0] ) ) {\n\t\t\t\treturn null;\n\t\t\t}\n\n\t\t\t// Accept quoted arguments as-is\n\t\t\tif ( match[3] && match[4] !== undefined ) {\n\t\t\t\tmatch[2] = match[4];\n\n\t\t\t// Strip excess characters from unquoted arguments\n\t\t\t} else if ( unquoted && rpseudo.test( unquoted ) &&\n\t\t\t\t// Get excess from tokenize (recursively)\n\t\t\t\t(excess = tokenize( unquoted, true )) &&\n\t\t\t\t// advance to the next closing parenthesis\n\t\t\t\t(excess = unquoted.indexOf( \")\", unquoted.length - excess ) - unquoted.length) ) {\n\n\t\t\t\t// excess is a negative index\n\t\t\t\tmatch[0] = match[0].slice( 0, excess );\n\t\t\t\tmatch[2] = unquoted.slice( 0, excess );\n\t\t\t}\n\n\t\t\t// Return only captures needed by the pseudo filter method (type and argument)\n\t\t\treturn match.slice( 0, 3 );\n\t\t}\n\t},\n\n\tfilter: {\n\n\t\t\"TAG\": function( nodeNameSelector ) {\n\t\t\tvar nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();\n\t\t\treturn nodeNameSelector === \"*\" ?\n\t\t\t\tfunction() { return true; } :\n\t\t\t\tfunction( elem ) {\n\t\t\t\t\treturn elem.nodeName && elem.nodeName.toLowerCase() === nodeName;\n\t\t\t\t};\n\t\t},\n\n\t\t\"CLASS\": function( className ) {\n\t\t\tvar pattern = classCache[ className + \" \" ];\n\n\t\t\treturn pattern ||\n\t\t\t\t(pattern = new RegExp( \"(^|\" + whitespace + \")\" + className + \"(\" + whitespace + \"|$)\" )) &&\n\t\t\t\tclassCache( className, function( elem ) {\n\t\t\t\t\treturn pattern.test( typeof elem.className === \"string\" && elem.className || typeof elem.getAttribute !== strundefined && elem.getAttribute(\"class\") || \"\" );\n\t\t\t\t});\n\t\t},\n\n\t\t\"ATTR\": function( name, operator, check ) {\n\t\t\treturn function( elem ) {\n\t\t\t\tvar result = Sizzle.attr( elem, name );\n\n\t\t\t\tif ( result == null ) {\n\t\t\t\t\treturn operator === \"!=\";\n\t\t\t\t}\n\t\t\t\tif ( !operator ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\n\t\t\t\tresult += \"\";\n\n\t\t\t\treturn operator === \"=\" ? result === check :\n\t\t\t\t\toperator === \"!=\" ? result !== check :\n\t\t\t\t\toperator === \"^=\" ? check && result.indexOf( check ) === 0 :\n\t\t\t\t\toperator === \"*=\" ? check && result.indexOf( check ) > -1 :\n\t\t\t\t\toperator === \"$=\" ? check && result.slice( -check.length ) === check :\n\t\t\t\t\toperator === \"~=\" ? ( \" \" + result + \" \" ).indexOf( check ) > -1 :\n\t\t\t\t\toperator === \"|=\" ? result === check || result.slice( 0, check.length + 1 ) === check + \"-\" :\n\t\t\t\t\tfalse;\n\t\t\t};\n\t\t},\n\n\t\t\"CHILD\": function( type, what, argument, first, last ) {\n\t\t\tvar simple = type.slice( 0, 3 ) !== \"nth\",\n\t\t\t\tforward = type.slice( -4 ) !== \"last\",\n\t\t\t\tofType = what === \"of-type\";\n\n\t\t\treturn first === 1 && last === 0 ?\n\n\t\t\t\t// Shortcut for :nth-*(n)\n\t\t\t\tfunction( elem ) {\n\t\t\t\t\treturn !!elem.parentNode;\n\t\t\t\t} :\n\n\t\t\t\tfunction( elem, context, xml ) {\n\t\t\t\t\tvar cache, outerCache, node, diff, nodeIndex, start,\n\t\t\t\t\t\tdir = simple !== forward ? \"nextSibling\" : \"previousSibling\",\n\t\t\t\t\t\tparent = elem.parentNode,\n\t\t\t\t\t\tname = ofType && elem.nodeName.toLowerCase(),\n\t\t\t\t\t\tuseCache = !xml && !ofType;\n\n\t\t\t\t\tif ( parent ) {\n\n\t\t\t\t\t\t// :(first|last|only)-(child|of-type)\n\t\t\t\t\t\tif ( simple ) {\n\t\t\t\t\t\t\twhile ( dir ) {\n\t\t\t\t\t\t\t\tnode = elem;\n\t\t\t\t\t\t\t\twhile ( (node = node[ dir ]) ) {\n\t\t\t\t\t\t\t\t\tif ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) {\n\t\t\t\t\t\t\t\t\t\treturn false;\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t// Reverse direction for :only-* (if we haven't yet done so)\n\t\t\t\t\t\t\t\tstart = dir = type === \"only\" && !start && \"nextSibling\";\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\treturn true;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tstart = [ forward ? parent.firstChild : parent.lastChild ];\n\n\t\t\t\t\t\t// non-xml :nth-child(...) stores cache data on `parent`\n\t\t\t\t\t\tif ( forward && useCache ) {\n\t\t\t\t\t\t\t// Seek `elem` from a previously-cached index\n\t\t\t\t\t\t\touterCache = parent[ expando ] || (parent[ expando ] = {});\n\t\t\t\t\t\t\tcache = outerCache[ type ] || [];\n\t\t\t\t\t\t\tnodeIndex = cache[0] === dirruns && cache[1];\n\t\t\t\t\t\t\tdiff = cache[0] === dirruns && cache[2];\n\t\t\t\t\t\t\tnode = nodeIndex && parent.childNodes[ nodeIndex ];\n\n\t\t\t\t\t\t\twhile ( (node = ++nodeIndex && node && node[ dir ] ||\n\n\t\t\t\t\t\t\t\t// Fallback to seeking `elem` from the start\n\t\t\t\t\t\t\t\t(diff = nodeIndex = 0) || start.pop()) ) {\n\n\t\t\t\t\t\t\t\t// When found, cache indexes on `parent` and break\n\t\t\t\t\t\t\t\tif ( node.nodeType === 1 && ++diff && node === elem ) {\n\t\t\t\t\t\t\t\t\touterCache[ type ] = [ dirruns, nodeIndex, diff ];\n\t\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Use previously-cached element index if available\n\t\t\t\t\t\t} else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {\n\t\t\t\t\t\t\tdiff = cache[1];\n\n\t\t\t\t\t\t// xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t// Use the same loop as above to seek `elem` from the start\n\t\t\t\t\t\t\twhile ( (node = ++nodeIndex && node && node[ dir ] ||\n\t\t\t\t\t\t\t\t(diff = nodeIndex = 0) || start.pop()) ) {\n\n\t\t\t\t\t\t\t\tif ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) {\n\t\t\t\t\t\t\t\t\t// Cache the index of each encountered element\n\t\t\t\t\t\t\t\t\tif ( useCache ) {\n\t\t\t\t\t\t\t\t\t\t(node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ];\n\t\t\t\t\t\t\t\t\t}\n\n\t\t\t\t\t\t\t\t\tif ( node === elem ) {\n\t\t\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Incorporate the offset, then check against cycle size\n\t\t\t\t\t\tdiff -= last;\n\t\t\t\t\t\treturn diff === first || ( diff % first === 0 && diff / first >= 0 );\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t},\n\n\t\t\"PSEUDO\": function( pseudo, argument ) {\n\t\t\t// pseudo-class names are case-insensitive\n\t\t\t// http://www.w3.org/TR/selectors/#pseudo-classes\n\t\t\t// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters\n\t\t\t// Remember that setFilters inherits from pseudos\n\t\t\tvar args,\n\t\t\t\tfn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||\n\t\t\t\t\tSizzle.error( \"unsupported pseudo: \" + pseudo );\n\n\t\t\t// The user may use createPseudo to indicate that\n\t\t\t// arguments are needed to create the filter function\n\t\t\t// just as Sizzle does\n\t\t\tif ( fn[ expando ] ) {\n\t\t\t\treturn fn( argument );\n\t\t\t}\n\n\t\t\t// But maintain support for old signatures\n\t\t\tif ( fn.length > 1 ) {\n\t\t\t\targs = [ pseudo, pseudo, \"\", argument ];\n\t\t\t\treturn Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?\n\t\t\t\t\tmarkFunction(function( seed, matches ) {\n\t\t\t\t\t\tvar idx,\n\t\t\t\t\t\t\tmatched = fn( seed, argument ),\n\t\t\t\t\t\t\ti = matched.length;\n\t\t\t\t\t\twhile ( i-- ) {\n\t\t\t\t\t\t\tidx = indexOf.call( seed, matched[i] );\n\t\t\t\t\t\t\tseed[ idx ] = !( matches[ idx ] = matched[i] );\n\t\t\t\t\t\t}\n\t\t\t\t\t}) :\n\t\t\t\t\tfunction( elem ) {\n\t\t\t\t\t\treturn fn( elem, 0, args );\n\t\t\t\t\t};\n\t\t\t}\n\n\t\t\treturn fn;\n\t\t}\n\t},\n\n\tpseudos: {\n\t\t// Potentially complex pseudos\n\t\t\"not\": markFunction(function( selector ) {\n\t\t\t// Trim the selector passed to compile\n\t\t\t// to avoid treating leading and trailing\n\t\t\t// spaces as combinators\n\t\t\tvar input = [],\n\t\t\t\tresults = [],\n\t\t\t\tmatcher = compile( selector.replace( rtrim, \"$1\" ) );\n\n\t\t\treturn matcher[ expando ] ?\n\t\t\t\tmarkFunction(function( seed, matches, context, xml ) {\n\t\t\t\t\tvar elem,\n\t\t\t\t\t\tunmatched = matcher( seed, null, xml, [] ),\n\t\t\t\t\t\ti = seed.length;\n\n\t\t\t\t\t// Match elements unmatched by `matcher`\n\t\t\t\t\twhile ( i-- ) {\n\t\t\t\t\t\tif ( (elem = unmatched[i]) ) {\n\t\t\t\t\t\t\tseed[i] = !(matches[i] = elem);\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}) :\n\t\t\t\tfunction( elem, context, xml ) {\n\t\t\t\t\tinput[0] = elem;\n\t\t\t\t\tmatcher( input, null, xml, results );\n\t\t\t\t\treturn !results.pop();\n\t\t\t\t};\n\t\t}),\n\n\t\t\"has\": markFunction(function( selector ) {\n\t\t\treturn function( elem ) {\n\t\t\t\treturn Sizzle( selector, elem ).length > 0;\n\t\t\t};\n\t\t}),\n\n\t\t\"contains\": markFunction(function( text ) {\n\t\t\treturn function( elem ) {\n\t\t\t\treturn ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;\n\t\t\t};\n\t\t}),\n\n\t\t// \"Whether an element is represented by a :lang() selector\n\t\t// is based solely on the element's language value\n\t\t// being equal to the identifier C,\n\t\t// or beginning with the identifier C immediately followed by \"-\".\n\t\t// The matching of C against the element's language value is performed case-insensitively.\n\t\t// The identifier C does not have to be a valid language name.\"\n\t\t// http://www.w3.org/TR/selectors/#lang-pseudo\n\t\t\"lang\": markFunction( function( lang ) {\n\t\t\t// lang value must be a valid identifier\n\t\t\tif ( !ridentifier.test(lang || \"\") ) {\n\t\t\t\tSizzle.error( \"unsupported lang: \" + lang );\n\t\t\t}\n\t\t\tlang = lang.replace( runescape, funescape ).toLowerCase();\n\t\t\treturn function( elem ) {\n\t\t\t\tvar elemLang;\n\t\t\t\tdo {\n\t\t\t\t\tif ( (elemLang = documentIsHTML ?\n\t\t\t\t\t\telem.lang :\n\t\t\t\t\t\telem.getAttribute(\"xml:lang\") || elem.getAttribute(\"lang\")) ) {\n\n\t\t\t\t\t\telemLang = elemLang.toLowerCase();\n\t\t\t\t\t\treturn elemLang === lang || elemLang.indexOf( lang + \"-\" ) === 0;\n\t\t\t\t\t}\n\t\t\t\t} while ( (elem = elem.parentNode) && elem.nodeType === 1 );\n\t\t\t\treturn false;\n\t\t\t};\n\t\t}),\n\n\t\t// Miscellaneous\n\t\t\"target\": function( elem ) {\n\t\t\tvar hash = window.location && window.location.hash;\n\t\t\treturn hash && hash.slice( 1 ) === elem.id;\n\t\t},\n\n\t\t\"root\": function( elem ) {\n\t\t\treturn elem === docElem;\n\t\t},\n\n\t\t\"focus\": function( elem ) {\n\t\t\treturn elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);\n\t\t},\n\n\t\t// Boolean properties\n\t\t\"enabled\": function( elem ) {\n\t\t\treturn elem.disabled === false;\n\t\t},\n\n\t\t\"disabled\": function( elem ) {\n\t\t\treturn elem.disabled === true;\n\t\t},\n\n\t\t\"checked\": function( elem ) {\n\t\t\t// In CSS3, :checked should return both checked and selected elements\n\t\t\t// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked\n\t\t\tvar nodeName = elem.nodeName.toLowerCase();\n\t\t\treturn (nodeName === \"input\" && !!elem.checked) || (nodeName === \"option\" && !!elem.selected);\n\t\t},\n\n\t\t\"selected\": function( elem ) {\n\t\t\t// Accessing this property makes selected-by-default\n\t\t\t// options in Safari work properly\n\t\t\tif ( elem.parentNode ) {\n\t\t\t\telem.parentNode.selectedIndex;\n\t\t\t}\n\n\t\t\treturn elem.selected === true;\n\t\t},\n\n\t\t// Contents\n\t\t\"empty\": function( elem ) {\n\t\t\t// http://www.w3.org/TR/selectors/#empty-pseudo\n\t\t\t// :empty is only affected by element nodes and content nodes(including text(3), cdata(4)),\n\t\t\t// not comment, processing instructions, or others\n\t\t\t// Thanks to Diego Perini for the nodeName shortcut\n\t\t\t// Greater than \"@\" means alpha characters (specifically not starting with \"#\" or \"?\")\n\t\t\tfor ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {\n\t\t\t\tif ( elem.nodeName > \"@\" || elem.nodeType === 3 || elem.nodeType === 4 ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn true;\n\t\t},\n\n\t\t\"parent\": function( elem ) {\n\t\t\treturn !Expr.pseudos[\"empty\"]( elem );\n\t\t},\n\n\t\t// Element/input types\n\t\t\"header\": function( elem ) {\n\t\t\treturn rheader.test( elem.nodeName );\n\t\t},\n\n\t\t\"input\": function( elem ) {\n\t\t\treturn rinputs.test( elem.nodeName );\n\t\t},\n\n\t\t\"button\": function( elem ) {\n\t\t\tvar name = elem.nodeName.toLowerCase();\n\t\t\treturn name === \"input\" && elem.type === \"button\" || name === \"button\";\n\t\t},\n\n\t\t\"text\": function( elem ) {\n\t\t\tvar attr;\n\t\t\t// IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc)\n\t\t\t// use getAttribute instead to test this case\n\t\t\treturn elem.nodeName.toLowerCase() === \"input\" &&\n\t\t\t\telem.type === \"text\" &&\n\t\t\t\t( (attr = elem.getAttribute(\"type\")) == null || attr.toLowerCase() === elem.type );\n\t\t},\n\n\t\t// Position-in-collection\n\t\t\"first\": createPositionalPseudo(function() {\n\t\t\treturn [ 0 ];\n\t\t}),\n\n\t\t\"last\": createPositionalPseudo(function( matchIndexes, length ) {\n\t\t\treturn [ length - 1 ];\n\t\t}),\n\n\t\t\"eq\": createPositionalPseudo(function( matchIndexes, length, argument ) {\n\t\t\treturn [ argument < 0 ? argument + length : argument ];\n\t\t}),\n\n\t\t\"even\": createPositionalPseudo(function( matchIndexes, length ) {\n\t\t\tvar i = 0;\n\t\t\tfor ( ; i < length; i += 2 ) {\n\t\t\t\tmatchIndexes.push( i );\n\t\t\t}\n\t\t\treturn matchIndexes;\n\t\t}),\n\n\t\t\"odd\": createPositionalPseudo(function( matchIndexes, length ) {\n\t\t\tvar i = 1;\n\t\t\tfor ( ; i < length; i += 2 ) {\n\t\t\t\tmatchIndexes.push( i );\n\t\t\t}\n\t\t\treturn matchIndexes;\n\t\t}),\n\n\t\t\"lt\": createPositionalPseudo(function( matchIndexes, length, argument ) {\n\t\t\tvar i = argument < 0 ? argument + length : argument;\n\t\t\tfor ( ; --i >= 0; ) {\n\t\t\t\tmatchIndexes.push( i );\n\t\t\t}\n\t\t\treturn matchIndexes;\n\t\t}),\n\n\t\t\"gt\": createPositionalPseudo(function( matchIndexes, length, argument ) {\n\t\t\tvar i = argument < 0 ? argument + length : argument;\n\t\t\tfor ( ; ++i < length; ) {\n\t\t\t\tmatchIndexes.push( i );\n\t\t\t}\n\t\t\treturn matchIndexes;\n\t\t})\n\t}\n};\n\nExpr.pseudos[\"nth\"] = Expr.pseudos[\"eq\"];\n\n// Add button/input type pseudos\nfor ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {\n\tExpr.pseudos[ i ] = createInputPseudo( i );\n}\nfor ( i in { submit: true, reset: true } ) {\n\tExpr.pseudos[ i ] = createButtonPseudo( i );\n}\n\n// Easy API for creating new setFilters\nfunction setFilters() {}\nsetFilters.prototype = Expr.filters = Expr.pseudos;\nExpr.setFilters = new setFilters();\n\nfunction tokenize( selector, parseOnly ) {\n\tvar matched, match, tokens, type,\n\t\tsoFar, groups, preFilters,\n\t\tcached = tokenCache[ selector + \" \" ];\n\n\tif ( cached ) {\n\t\treturn parseOnly ? 0 : cached.slice( 0 );\n\t}\n\n\tsoFar = selector;\n\tgroups = [];\n\tpreFilters = Expr.preFilter;\n\n\twhile ( soFar ) {\n\n\t\t// Comma and first run\n\t\tif ( !matched || (match = rcomma.exec( soFar )) ) {\n\t\t\tif ( match ) {\n\t\t\t\t// Don't consume trailing commas as valid\n\t\t\t\tsoFar = soFar.slice( match[0].length ) || soFar;\n\t\t\t}\n\t\t\tgroups.push( tokens = [] );\n\t\t}\n\n\t\tmatched = false;\n\n\t\t// Combinators\n\t\tif ( (match = rcombinators.exec( soFar )) ) {\n\t\t\tmatched = match.shift();\n\t\t\ttokens.push({\n\t\t\t\tvalue: matched,\n\t\t\t\t// Cast descendant combinators to space\n\t\t\t\ttype: match[0].replace( rtrim, \" \" )\n\t\t\t});\n\t\t\tsoFar = soFar.slice( matched.length );\n\t\t}\n\n\t\t// Filters\n\t\tfor ( type in Expr.filter ) {\n\t\t\tif ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||\n\t\t\t\t(match = preFilters[ type ]( match ))) ) {\n\t\t\t\tmatched = match.shift();\n\t\t\t\ttokens.push({\n\t\t\t\t\tvalue: matched,\n\t\t\t\t\ttype: type,\n\t\t\t\t\tmatches: match\n\t\t\t\t});\n\t\t\t\tsoFar = soFar.slice( matched.length );\n\t\t\t}\n\t\t}\n\n\t\tif ( !matched ) {\n\t\t\tbreak;\n\t\t}\n\t}\n\n\t// Return the length of the invalid excess\n\t// if we're just parsing\n\t// Otherwise, throw an error or return tokens\n\treturn parseOnly ?\n\t\tsoFar.length :\n\t\tsoFar ?\n\t\t\tSizzle.error( selector ) :\n\t\t\t// Cache the tokens\n\t\t\ttokenCache( selector, groups ).slice( 0 );\n}\n\nfunction toSelector( tokens ) {\n\tvar i = 0,\n\t\tlen = tokens.length,\n\t\tselector = \"\";\n\tfor ( ; i < len; i++ ) {\n\t\tselector += tokens[i].value;\n\t}\n\treturn selector;\n}\n\nfunction addCombinator( matcher, combinator, base ) {\n\tvar dir = combinator.dir,\n\t\tcheckNonElements = base && dir === \"parentNode\",\n\t\tdoneName = done++;\n\n\treturn combinator.first ?\n\t\t// Check against closest ancestor/preceding element\n\t\tfunction( elem, context, xml ) {\n\t\t\twhile ( (elem = elem[ dir ]) ) {\n\t\t\t\tif ( elem.nodeType === 1 || checkNonElements ) {\n\t\t\t\t\treturn matcher( elem, context, xml );\n\t\t\t\t}\n\t\t\t}\n\t\t} :\n\n\t\t// Check against all ancestor/preceding elements\n\t\tfunction( elem, context, xml ) {\n\t\t\tvar data, cache, outerCache,\n\t\t\t\tdirkey = dirruns + \" \" + doneName;\n\n\t\t\t// We can't set arbitrary data on XML nodes, so they don't benefit from dir caching\n\t\t\tif ( xml ) {\n\t\t\t\twhile ( (elem = elem[ dir ]) ) {\n\t\t\t\t\tif ( elem.nodeType === 1 || checkNonElements ) {\n\t\t\t\t\t\tif ( matcher( elem, context, xml ) ) {\n\t\t\t\t\t\t\treturn true;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\twhile ( (elem = elem[ dir ]) ) {\n\t\t\t\t\tif ( elem.nodeType === 1 || checkNonElements ) {\n\t\t\t\t\t\touterCache = elem[ expando ] || (elem[ expando ] = {});\n\t\t\t\t\t\tif ( (cache = outerCache[ dir ]) && cache[0] === dirkey ) {\n\t\t\t\t\t\t\tif ( (data = cache[1]) === true || data === cachedruns ) {\n\t\t\t\t\t\t\t\treturn data === true;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\tcache = outerCache[ dir ] = [ dirkey ];\n\t\t\t\t\t\t\tcache[1] = matcher( elem, context, xml ) || cachedruns;\n\t\t\t\t\t\t\tif ( cache[1] === true ) {\n\t\t\t\t\t\t\t\treturn true;\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t};\n}\n\nfunction elementMatcher( matchers ) {\n\treturn matchers.length > 1 ?\n\t\tfunction( elem, context, xml ) {\n\t\t\tvar i = matchers.length;\n\t\t\twhile ( i-- ) {\n\t\t\t\tif ( !matchers[i]( elem, context, xml ) ) {\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn true;\n\t\t} :\n\t\tmatchers[0];\n}\n\nfunction condense( unmatched, map, filter, context, xml ) {\n\tvar elem,\n\t\tnewUnmatched = [],\n\t\ti = 0,\n\t\tlen = unmatched.length,\n\t\tmapped = map != null;\n\n\tfor ( ; i < len; i++ ) {\n\t\tif ( (elem = unmatched[i]) ) {\n\t\t\tif ( !filter || filter( elem, context, xml ) ) {\n\t\t\t\tnewUnmatched.push( elem );\n\t\t\t\tif ( mapped ) {\n\t\t\t\t\tmap.push( i );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn newUnmatched;\n}\n\nfunction setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {\n\tif ( postFilter && !postFilter[ expando ] ) {\n\t\tpostFilter = setMatcher( postFilter );\n\t}\n\tif ( postFinder && !postFinder[ expando ] ) {\n\t\tpostFinder = setMatcher( postFinder, postSelector );\n\t}\n\treturn markFunction(function( seed, results, context, xml ) {\n\t\tvar temp, i, elem,\n\t\t\tpreMap = [],\n\t\t\tpostMap = [],\n\t\t\tpreexisting = results.length,\n\n\t\t\t// Get initial elements from seed or context\n\t\t\telems = seed || multipleContexts( selector || \"*\", context.nodeType ? [ context ] : context, [] ),\n\n\t\t\t// Prefilter to get matcher input, preserving a map for seed-results synchronization\n\t\t\tmatcherIn = preFilter && ( seed || !selector ) ?\n\t\t\t\tcondense( elems, preMap, preFilter, context, xml ) :\n\t\t\t\telems,\n\n\t\t\tmatcherOut = matcher ?\n\t\t\t\t// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,\n\t\t\t\tpostFinder || ( seed ? preFilter : preexisting || postFilter ) ?\n\n\t\t\t\t\t// ...intermediate processing is necessary\n\t\t\t\t\t[] :\n\n\t\t\t\t\t// ...otherwise use results directly\n\t\t\t\t\tresults :\n\t\t\t\tmatcherIn;\n\n\t\t// Find primary matches\n\t\tif ( matcher ) {\n\t\t\tmatcher( matcherIn, matcherOut, context, xml );\n\t\t}\n\n\t\t// Apply postFilter\n\t\tif ( postFilter ) {\n\t\t\ttemp = condense( matcherOut, postMap );\n\t\t\tpostFilter( temp, [], context, xml );\n\n\t\t\t// Un-match failing elements by moving them back to matcherIn\n\t\t\ti = temp.length;\n\t\t\twhile ( i-- ) {\n\t\t\t\tif ( (elem = temp[i]) ) {\n\t\t\t\t\tmatcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tif ( seed ) {\n\t\t\tif ( postFinder || preFilter ) {\n\t\t\t\tif ( postFinder ) {\n\t\t\t\t\t// Get the final matcherOut by condensing this intermediate into postFinder contexts\n\t\t\t\t\ttemp = [];\n\t\t\t\t\ti = matcherOut.length;\n\t\t\t\t\twhile ( i-- ) {\n\t\t\t\t\t\tif ( (elem = matcherOut[i]) ) {\n\t\t\t\t\t\t\t// Restore matcherIn since elem is not yet a final match\n\t\t\t\t\t\t\ttemp.push( (matcherIn[i] = elem) );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tpostFinder( null, (matcherOut = []), temp, xml );\n\t\t\t\t}\n\n\t\t\t\t// Move matched elements from seed to results to keep them synchronized\n\t\t\t\ti = matcherOut.length;\n\t\t\t\twhile ( i-- ) {\n\t\t\t\t\tif ( (elem = matcherOut[i]) &&\n\t\t\t\t\t\t(temp = postFinder ? indexOf.call( seed, elem ) : preMap[i]) > -1 ) {\n\n\t\t\t\t\t\tseed[temp] = !(results[temp] = elem);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t// Add elements to results, through postFinder if defined\n\t\t} else {\n\t\t\tmatcherOut = condense(\n\t\t\t\tmatcherOut === results ?\n\t\t\t\t\tmatcherOut.splice( preexisting, matcherOut.length ) :\n\t\t\t\t\tmatcherOut\n\t\t\t);\n\t\t\tif ( postFinder ) {\n\t\t\t\tpostFinder( null, results, matcherOut, xml );\n\t\t\t} else {\n\t\t\t\tpush.apply( results, matcherOut );\n\t\t\t}\n\t\t}\n\t});\n}\n\nfunction matcherFromTokens( tokens ) {\n\tvar checkContext, matcher, j,\n\t\tlen = tokens.length,\n\t\tleadingRelative = Expr.relative[ tokens[0].type ],\n\t\timplicitRelative = leadingRelative || Expr.relative[\" \"],\n\t\ti = leadingRelative ? 1 : 0,\n\n\t\t// The foundational matcher ensures that elements are reachable from top-level context(s)\n\t\tmatchContext = addCombinator( function( elem ) {\n\t\t\treturn elem === checkContext;\n\t\t}, implicitRelative, true ),\n\t\tmatchAnyContext = addCombinator( function( elem ) {\n\t\t\treturn indexOf.call( checkContext, elem ) > -1;\n\t\t}, implicitRelative, true ),\n\t\tmatchers = [ function( elem, context, xml ) {\n\t\t\treturn ( !leadingRelative && ( xml || context !== outermostContext ) ) || (\n\t\t\t\t(checkContext = context).nodeType ?\n\t\t\t\t\tmatchContext( elem, context, xml ) :\n\t\t\t\t\tmatchAnyContext( elem, context, xml ) );\n\t\t} ];\n\n\tfor ( ; i < len; i++ ) {\n\t\tif ( (matcher = Expr.relative[ tokens[i].type ]) ) {\n\t\t\tmatchers = [ addCombinator(elementMatcher( matchers ), matcher) ];\n\t\t} else {\n\t\t\tmatcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );\n\n\t\t\t// Return special upon seeing a positional matcher\n\t\t\tif ( matcher[ expando ] ) {\n\t\t\t\t// Find the next relative operator (if any) for proper handling\n\t\t\t\tj = ++i;\n\t\t\t\tfor ( ; j < len; j++ ) {\n\t\t\t\t\tif ( Expr.relative[ tokens[j].type ] ) {\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn setMatcher(\n\t\t\t\t\ti > 1 && elementMatcher( matchers ),\n\t\t\t\t\ti > 1 && toSelector(\n\t\t\t\t\t\t// If the preceding token was a descendant combinator, insert an implicit any-element `*`\n\t\t\t\t\t\ttokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === \" \" ? \"*\" : \"\" })\n\t\t\t\t\t).replace( rtrim, \"$1\" ),\n\t\t\t\t\tmatcher,\n\t\t\t\t\ti < j && matcherFromTokens( tokens.slice( i, j ) ),\n\t\t\t\t\tj < len && matcherFromTokens( (tokens = tokens.slice( j )) ),\n\t\t\t\t\tj < len && toSelector( tokens )\n\t\t\t\t);\n\t\t\t}\n\t\t\tmatchers.push( matcher );\n\t\t}\n\t}\n\n\treturn elementMatcher( matchers );\n}\n\nfunction matcherFromGroupMatchers( elementMatchers, setMatchers ) {\n\t// A counter to specify which element is currently being matched\n\tvar matcherCachedRuns = 0,\n\t\tbySet = setMatchers.length > 0,\n\t\tbyElement = elementMatchers.length > 0,\n\t\tsuperMatcher = function( seed, context, xml, results, expandContext ) {\n\t\t\tvar elem, j, matcher,\n\t\t\t\tsetMatched = [],\n\t\t\t\tmatchedCount = 0,\n\t\t\t\ti = \"0\",\n\t\t\t\tunmatched = seed && [],\n\t\t\t\toutermost = expandContext != null,\n\t\t\t\tcontextBackup = outermostContext,\n\t\t\t\t// We must always have either seed elements or context\n\t\t\t\telems = seed || byElement && Expr.find[\"TAG\"]( \"*\", expandContext && context.parentNode || context ),\n\t\t\t\t// Use integer dirruns iff this is the outermost matcher\n\t\t\t\tdirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1);\n\n\t\t\tif ( outermost ) {\n\t\t\t\toutermostContext = context !== document && context;\n\t\t\t\tcachedruns = matcherCachedRuns;\n\t\t\t}\n\n\t\t\t// Add elements passing elementMatchers directly to results\n\t\t\t// Keep `i` a string if there are no elements so `matchedCount` will be \"00\" below\n\t\t\tfor ( ; (elem = elems[i]) != null; i++ ) {\n\t\t\t\tif ( byElement && elem ) {\n\t\t\t\t\tj = 0;\n\t\t\t\t\twhile ( (matcher = elementMatchers[j++]) ) {\n\t\t\t\t\t\tif ( matcher( elem, context, xml ) ) {\n\t\t\t\t\t\t\tresults.push( elem );\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tif ( outermost ) {\n\t\t\t\t\t\tdirruns = dirrunsUnique;\n\t\t\t\t\t\tcachedruns = ++matcherCachedRuns;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// Track unmatched elements for set filters\n\t\t\t\tif ( bySet ) {\n\t\t\t\t\t// They will have gone through all possible matchers\n\t\t\t\t\tif ( (elem = !matcher && elem) ) {\n\t\t\t\t\t\tmatchedCount--;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Lengthen the array for every element, matched or not\n\t\t\t\t\tif ( seed ) {\n\t\t\t\t\t\tunmatched.push( elem );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Apply set filters to unmatched elements\n\t\t\tmatchedCount += i;\n\t\t\tif ( bySet && i !== matchedCount ) {\n\t\t\t\tj = 0;\n\t\t\t\twhile ( (matcher = setMatchers[j++]) ) {\n\t\t\t\t\tmatcher( unmatched, setMatched, context, xml );\n\t\t\t\t}\n\n\t\t\t\tif ( seed ) {\n\t\t\t\t\t// Reintegrate element matches to eliminate the need for sorting\n\t\t\t\t\tif ( matchedCount > 0 ) {\n\t\t\t\t\t\twhile ( i-- ) {\n\t\t\t\t\t\t\tif ( !(unmatched[i] || setMatched[i]) ) {\n\t\t\t\t\t\t\t\tsetMatched[i] = pop.call( results );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\t// Discard index placeholder values to get only actual matches\n\t\t\t\t\tsetMatched = condense( setMatched );\n\t\t\t\t}\n\n\t\t\t\t// Add matches to results\n\t\t\t\tpush.apply( results, setMatched );\n\n\t\t\t\t// Seedless set matches succeeding multiple successful matchers stipulate sorting\n\t\t\t\tif ( outermost && !seed && setMatched.length > 0 &&\n\t\t\t\t\t( matchedCount + setMatchers.length ) > 1 ) {\n\n\t\t\t\t\tSizzle.uniqueSort( results );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Override manipulation of globals by nested matchers\n\t\t\tif ( outermost ) {\n\t\t\t\tdirruns = dirrunsUnique;\n\t\t\t\toutermostContext = contextBackup;\n\t\t\t}\n\n\t\t\treturn unmatched;\n\t\t};\n\n\treturn bySet ?\n\t\tmarkFunction( superMatcher ) :\n\t\tsuperMatcher;\n}\n\ncompile = Sizzle.compile = function( selector, group /* Internal Use Only */ ) {\n\tvar i,\n\t\tsetMatchers = [],\n\t\telementMatchers = [],\n\t\tcached = compilerCache[ selector + \" \" ];\n\n\tif ( !cached ) {\n\t\t// Generate a function of recursive functions that can be used to check each element\n\t\tif ( !group ) {\n\t\t\tgroup = tokenize( selector );\n\t\t}\n\t\ti = group.length;\n\t\twhile ( i-- ) {\n\t\t\tcached = matcherFromTokens( group[i] );\n\t\t\tif ( cached[ expando ] ) {\n\t\t\t\tsetMatchers.push( cached );\n\t\t\t} else {\n\t\t\t\telementMatchers.push( cached );\n\t\t\t}\n\t\t}\n\n\t\t// Cache the compiled function\n\t\tcached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );\n\t}\n\treturn cached;\n};\n\nfunction multipleContexts( selector, contexts, results ) {\n\tvar i = 0,\n\t\tlen = contexts.length;\n\tfor ( ; i < len; i++ ) {\n\t\tSizzle( selector, contexts[i], results );\n\t}\n\treturn results;\n}\n\nfunction select( selector, context, results, seed ) {\n\tvar i, tokens, token, type, find,\n\t\tmatch = tokenize( selector );\n\n\tif ( !seed ) {\n\t\t// Try to minimize operations if there is only one group\n\t\tif ( match.length === 1 ) {\n\n\t\t\t// Take a shortcut and set the context if the root selector is an ID\n\t\t\ttokens = match[0] = match[0].slice( 0 );\n\t\t\tif ( tokens.length > 2 && (token = tokens[0]).type === \"ID\" &&\n\t\t\t\t\tsupport.getById && context.nodeType === 9 && documentIsHTML &&\n\t\t\t\t\tExpr.relative[ tokens[1].type ] ) {\n\n\t\t\t\tcontext = ( Expr.find[\"ID\"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];\n\t\t\t\tif ( !context ) {\n\t\t\t\t\treturn results;\n\t\t\t\t}\n\t\t\t\tselector = selector.slice( tokens.shift().value.length );\n\t\t\t}\n\n\t\t\t// Fetch a seed set for right-to-left matching\n\t\t\ti = matchExpr[\"needsContext\"].test( selector ) ? 0 : tokens.length;\n\t\t\twhile ( i-- ) {\n\t\t\t\ttoken = tokens[i];\n\n\t\t\t\t// Abort if we hit a combinator\n\t\t\t\tif ( Expr.relative[ (type = token.type) ] ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tif ( (find = Expr.find[ type ]) ) {\n\t\t\t\t\t// Search, expanding context for leading sibling combinators\n\t\t\t\t\tif ( (seed = find(\n\t\t\t\t\t\ttoken.matches[0].replace( runescape, funescape ),\n\t\t\t\t\t\trsibling.test( tokens[0].type ) && context.parentNode || context\n\t\t\t\t\t)) ) {\n\n\t\t\t\t\t\t// If seed is empty or no tokens remain, we can return early\n\t\t\t\t\t\ttokens.splice( i, 1 );\n\t\t\t\t\t\tselector = seed.length && toSelector( tokens );\n\t\t\t\t\t\tif ( !selector ) {\n\t\t\t\t\t\t\tpush.apply( results, seed );\n\t\t\t\t\t\t\treturn results;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// Compile and execute a filtering function\n\t// Provide `match` to avoid retokenization if we modified the selector above\n\tcompile( selector, match )(\n\t\tseed,\n\t\tcontext,\n\t\t!documentIsHTML,\n\t\tresults,\n\t\trsibling.test( selector )\n\t);\n\treturn results;\n}\n\n// One-time assignments\n\n// Sort stability\nsupport.sortStable = expando.split(\"\").sort( sortOrder ).join(\"\") === expando;\n\n// Support: Chrome<14\n// Always assume duplicates if they aren't passed to the comparison function\nsupport.detectDuplicates = hasDuplicate;\n\n// Initialize against the default document\nsetDocument();\n\n// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)\n// Detached nodes confoundingly follow *each other*\nsupport.sortDetached = assert(function( div1 ) {\n\t// Should return 1, but returns 4 (following)\n\treturn div1.compareDocumentPosition( document.createElement(\"div\") ) & 1;\n});\n\n// Support: IE<8\n// Prevent attribute/property \"interpolation\"\n// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx\nif ( !assert(function( div ) {\n\tdiv.innerHTML = \"\";\n\treturn div.firstChild.getAttribute(\"href\") === \"#\" ;\n}) ) {\n\taddHandle( \"type|href|height|width\", function( elem, name, isXML ) {\n\t\tif ( !isXML ) {\n\t\t\treturn elem.getAttribute( name, name.toLowerCase() === \"type\" ? 1 : 2 );\n\t\t}\n\t});\n}\n\n// Support: IE<9\n// Use defaultValue in place of getAttribute(\"value\")\nif ( !support.attributes || !assert(function( div ) {\n\tdiv.innerHTML = \"\";\n\tdiv.firstChild.setAttribute( \"value\", \"\" );\n\treturn div.firstChild.getAttribute( \"value\" ) === \"\";\n}) ) {\n\taddHandle( \"value\", function( elem, name, isXML ) {\n\t\tif ( !isXML && elem.nodeName.toLowerCase() === \"input\" ) {\n\t\t\treturn elem.defaultValue;\n\t\t}\n\t});\n}\n\n// Support: IE<9\n// Use getAttributeNode to fetch booleans when getAttribute lies\nif ( !assert(function( div ) {\n\treturn div.getAttribute(\"disabled\") == null;\n}) ) {\n\taddHandle( booleans, function( elem, name, isXML ) {\n\t\tvar val;\n\t\tif ( !isXML ) {\n\t\t\treturn (val = elem.getAttributeNode( name )) && val.specified ?\n\t\t\t\tval.value :\n\t\t\t\telem[ name ] === true ? name.toLowerCase() : null;\n\t\t}\n\t});\n}\n\njQuery.find = Sizzle;\njQuery.expr = Sizzle.selectors;\njQuery.expr[\":\"] = jQuery.expr.pseudos;\njQuery.unique = Sizzle.uniqueSort;\njQuery.text = Sizzle.getText;\njQuery.isXMLDoc = Sizzle.isXML;\njQuery.contains = Sizzle.contains;\n\n\n})( window );\n// String to Object options format cache\nvar optionsCache = {};\n\n// Convert String-formatted options into Object-formatted ones and store in cache\nfunction createOptions( options ) {\n\tvar object = optionsCache[ options ] = {};\n\tjQuery.each( options.match( core_rnotwhite ) || [], function( _, flag ) {\n\t\tobject[ flag ] = true;\n\t});\n\treturn object;\n}\n\n/*\n * Create a callback list using the following parameters:\n *\n *\toptions: an optional list of space-separated options that will change how\n *\t\t\tthe callback list behaves or a more traditional option object\n *\n * By default a callback list will act like an event callback list and can be\n * \"fired\" multiple times.\n *\n * Possible options:\n *\n *\tonce:\t\t\twill ensure the callback list can only be fired once (like a Deferred)\n *\n *\tmemory:\t\t\twill keep track of previous values and will call any callback added\n *\t\t\t\t\tafter the list has been fired right away with the latest \"memorized\"\n *\t\t\t\t\tvalues (like a Deferred)\n *\n *\tunique:\t\t\twill ensure a callback can only be added once (no duplicate in the list)\n *\n *\tstopOnFalse:\tinterrupt callings when a callback returns false\n *\n */\njQuery.Callbacks = function( options ) {\n\n\t// Convert options from String-formatted to Object-formatted if needed\n\t// (we check in cache first)\n\toptions = typeof options === \"string\" ?\n\t\t( optionsCache[ options ] || createOptions( options ) ) :\n\t\tjQuery.extend( {}, options );\n\n\tvar // Last fire value (for non-forgettable lists)\n\t\tmemory,\n\t\t// Flag to know if list was already fired\n\t\tfired,\n\t\t// Flag to know if list is currently firing\n\t\tfiring,\n\t\t// First callback to fire (used internally by add and fireWith)\n\t\tfiringStart,\n\t\t// End of the loop when firing\n\t\tfiringLength,\n\t\t// Index of currently firing callback (modified by remove if needed)\n\t\tfiringIndex,\n\t\t// Actual callback list\n\t\tlist = [],\n\t\t// Stack of fire calls for repeatable lists\n\t\tstack = !options.once && [],\n\t\t// Fire callbacks\n\t\tfire = function( data ) {\n\t\t\tmemory = options.memory && data;\n\t\t\tfired = true;\n\t\t\tfiringIndex = firingStart || 0;\n\t\t\tfiringStart = 0;\n\t\t\tfiringLength = list.length;\n\t\t\tfiring = true;\n\t\t\tfor ( ; list && firingIndex < firingLength; firingIndex++ ) {\n\t\t\t\tif ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {\n\t\t\t\t\tmemory = false; // To prevent further calls using add\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t\tfiring = false;\n\t\t\tif ( list ) {\n\t\t\t\tif ( stack ) {\n\t\t\t\t\tif ( stack.length ) {\n\t\t\t\t\t\tfire( stack.shift() );\n\t\t\t\t\t}\n\t\t\t\t} else if ( memory ) {\n\t\t\t\t\tlist = [];\n\t\t\t\t} else {\n\t\t\t\t\tself.disable();\n\t\t\t\t}\n\t\t\t}\n\t\t},\n\t\t// Actual Callbacks object\n\t\tself = {\n\t\t\t// Add a callback or a collection of callbacks to the list\n\t\t\tadd: function() {\n\t\t\t\tif ( list ) {\n\t\t\t\t\t// First, we save the current length\n\t\t\t\t\tvar start = list.length;\n\t\t\t\t\t(function add( args ) {\n\t\t\t\t\t\tjQuery.each( args, function( _, arg ) {\n\t\t\t\t\t\t\tvar type = jQuery.type( arg );\n\t\t\t\t\t\t\tif ( type === \"function\" ) {\n\t\t\t\t\t\t\t\tif ( !options.unique || !self.has( arg ) ) {\n\t\t\t\t\t\t\t\t\tlist.push( arg );\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t} else if ( arg && arg.length && type !== \"string\" ) {\n\t\t\t\t\t\t\t\t// Inspect recursively\n\t\t\t\t\t\t\t\tadd( arg );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t});\n\t\t\t\t\t})( arguments );\n\t\t\t\t\t// Do we need to add the callbacks to the\n\t\t\t\t\t// current firing batch?\n\t\t\t\t\tif ( firing ) {\n\t\t\t\t\t\tfiringLength = list.length;\n\t\t\t\t\t// With memory, if we're not firing then\n\t\t\t\t\t// we should call right away\n\t\t\t\t\t} else if ( memory ) {\n\t\t\t\t\t\tfiringStart = start;\n\t\t\t\t\t\tfire( memory );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn this;\n\t\t\t},\n\t\t\t// Remove a callback from the list\n\t\t\tremove: function() {\n\t\t\t\tif ( list ) {\n\t\t\t\t\tjQuery.each( arguments, function( _, arg ) {\n\t\t\t\t\t\tvar index;\n\t\t\t\t\t\twhile( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {\n\t\t\t\t\t\t\tlist.splice( index, 1 );\n\t\t\t\t\t\t\t// Handle firing indexes\n\t\t\t\t\t\t\tif ( firing ) {\n\t\t\t\t\t\t\t\tif ( index <= firingLength ) {\n\t\t\t\t\t\t\t\t\tfiringLength--;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\tif ( index <= firingIndex ) {\n\t\t\t\t\t\t\t\t\tfiringIndex--;\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t});\n\t\t\t\t}\n\t\t\t\treturn this;\n\t\t\t},\n\t\t\t// Check if a given callback is in the list.\n\t\t\t// If no argument is given, return whether or not list has callbacks attached.\n\t\t\thas: function( fn ) {\n\t\t\t\treturn fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length );\n\t\t\t},\n\t\t\t// Remove all callbacks from the list\n\t\t\tempty: function() {\n\t\t\t\tlist = [];\n\t\t\t\tfiringLength = 0;\n\t\t\t\treturn this;\n\t\t\t},\n\t\t\t// Have the list do nothing anymore\n\t\t\tdisable: function() {\n\t\t\t\tlist = stack = memory = undefined;\n\t\t\t\treturn this;\n\t\t\t},\n\t\t\t// Is it disabled?\n\t\t\tdisabled: function() {\n\t\t\t\treturn !list;\n\t\t\t},\n\t\t\t// Lock the list in its current state\n\t\t\tlock: function() {\n\t\t\t\tstack = undefined;\n\t\t\t\tif ( !memory ) {\n\t\t\t\t\tself.disable();\n\t\t\t\t}\n\t\t\t\treturn this;\n\t\t\t},\n\t\t\t// Is it locked?\n\t\t\tlocked: function() {\n\t\t\t\treturn !stack;\n\t\t\t},\n\t\t\t// Call all callbacks with the given context and arguments\n\t\t\tfireWith: function( context, args ) {\n\t\t\t\tif ( list && ( !fired || stack ) ) {\n\t\t\t\t\targs = args || [];\n\t\t\t\t\targs = [ context, args.slice ? args.slice() : args ];\n\t\t\t\t\tif ( firing ) {\n\t\t\t\t\t\tstack.push( args );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tfire( args );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn this;\n\t\t\t},\n\t\t\t// Call all the callbacks with the given arguments\n\t\t\tfire: function() {\n\t\t\t\tself.fireWith( this, arguments );\n\t\t\t\treturn this;\n\t\t\t},\n\t\t\t// To know if the callbacks have already been called at least once\n\t\t\tfired: function() {\n\t\t\t\treturn !!fired;\n\t\t\t}\n\t\t};\n\n\treturn self;\n};\njQuery.extend({\n\n\tDeferred: function( func ) {\n\t\tvar tuples = [\n\t\t\t\t// action, add listener, listener list, final state\n\t\t\t\t[ \"resolve\", \"done\", jQuery.Callbacks(\"once memory\"), \"resolved\" ],\n\t\t\t\t[ \"reject\", \"fail\", jQuery.Callbacks(\"once memory\"), \"rejected\" ],\n\t\t\t\t[ \"notify\", \"progress\", jQuery.Callbacks(\"memory\") ]\n\t\t\t],\n\t\t\tstate = \"pending\",\n\t\t\tpromise = {\n\t\t\t\tstate: function() {\n\t\t\t\t\treturn state;\n\t\t\t\t},\n\t\t\t\talways: function() {\n\t\t\t\t\tdeferred.done( arguments ).fail( arguments );\n\t\t\t\t\treturn this;\n\t\t\t\t},\n\t\t\t\tthen: function( /* fnDone, fnFail, fnProgress */ ) {\n\t\t\t\t\tvar fns = arguments;\n\t\t\t\t\treturn jQuery.Deferred(function( newDefer ) {\n\t\t\t\t\t\tjQuery.each( tuples, function( i, tuple ) {\n\t\t\t\t\t\t\tvar action = tuple[ 0 ],\n\t\t\t\t\t\t\t\tfn = jQuery.isFunction( fns[ i ] ) && fns[ i ];\n\t\t\t\t\t\t\t// deferred[ done | fail | progress ] for forwarding actions to newDefer\n\t\t\t\t\t\t\tdeferred[ tuple[1] ](function() {\n\t\t\t\t\t\t\t\tvar returned = fn && fn.apply( this, arguments );\n\t\t\t\t\t\t\t\tif ( returned && jQuery.isFunction( returned.promise ) ) {\n\t\t\t\t\t\t\t\t\treturned.promise()\n\t\t\t\t\t\t\t\t\t\t.done( newDefer.resolve )\n\t\t\t\t\t\t\t\t\t\t.fail( newDefer.reject )\n\t\t\t\t\t\t\t\t\t\t.progress( newDefer.notify );\n\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\tnewDefer[ action + \"With\" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );\n\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t});\n\t\t\t\t\t\t});\n\t\t\t\t\t\tfns = null;\n\t\t\t\t\t}).promise();\n\t\t\t\t},\n\t\t\t\t// Get a promise for this deferred\n\t\t\t\t// If obj is provided, the promise aspect is added to the object\n\t\t\t\tpromise: function( obj ) {\n\t\t\t\t\treturn obj != null ? jQuery.extend( obj, promise ) : promise;\n\t\t\t\t}\n\t\t\t},\n\t\t\tdeferred = {};\n\n\t\t// Keep pipe for back-compat\n\t\tpromise.pipe = promise.then;\n\n\t\t// Add list-specific methods\n\t\tjQuery.each( tuples, function( i, tuple ) {\n\t\t\tvar list = tuple[ 2 ],\n\t\t\t\tstateString = tuple[ 3 ];\n\n\t\t\t// promise[ done | fail | progress ] = list.add\n\t\t\tpromise[ tuple[1] ] = list.add;\n\n\t\t\t// Handle state\n\t\t\tif ( stateString ) {\n\t\t\t\tlist.add(function() {\n\t\t\t\t\t// state = [ resolved | rejected ]\n\t\t\t\t\tstate = stateString;\n\n\t\t\t\t// [ reject_list | resolve_list ].disable; progress_list.lock\n\t\t\t\t}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );\n\t\t\t}\n\n\t\t\t// deferred[ resolve | reject | notify ]\n\t\t\tdeferred[ tuple[0] ] = function() {\n\t\t\t\tdeferred[ tuple[0] + \"With\" ]( this === deferred ? promise : this, arguments );\n\t\t\t\treturn this;\n\t\t\t};\n\t\t\tdeferred[ tuple[0] + \"With\" ] = list.fireWith;\n\t\t});\n\n\t\t// Make the deferred a promise\n\t\tpromise.promise( deferred );\n\n\t\t// Call given func if any\n\t\tif ( func ) {\n\t\t\tfunc.call( deferred, deferred );\n\t\t}\n\n\t\t// All done!\n\t\treturn deferred;\n\t},\n\n\t// Deferred helper\n\twhen: function( subordinate /* , ..., subordinateN */ ) {\n\t\tvar i = 0,\n\t\t\tresolveValues = core_slice.call( arguments ),\n\t\t\tlength = resolveValues.length,\n\n\t\t\t// the count of uncompleted subordinates\n\t\t\tremaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,\n\n\t\t\t// the master Deferred. If resolveValues consist of only a single Deferred, just use that.\n\t\t\tdeferred = remaining === 1 ? subordinate : jQuery.Deferred(),\n\n\t\t\t// Update function for both resolve and progress values\n\t\t\tupdateFunc = function( i, contexts, values ) {\n\t\t\t\treturn function( value ) {\n\t\t\t\t\tcontexts[ i ] = this;\n\t\t\t\t\tvalues[ i ] = arguments.length > 1 ? core_slice.call( arguments ) : value;\n\t\t\t\t\tif( values === progressValues ) {\n\t\t\t\t\t\tdeferred.notifyWith( contexts, values );\n\t\t\t\t\t} else if ( !( --remaining ) ) {\n\t\t\t\t\t\tdeferred.resolveWith( contexts, values );\n\t\t\t\t\t}\n\t\t\t\t};\n\t\t\t},\n\n\t\t\tprogressValues, progressContexts, resolveContexts;\n\n\t\t// add listeners to Deferred subordinates; treat others as resolved\n\t\tif ( length > 1 ) {\n\t\t\tprogressValues = new Array( length );\n\t\t\tprogressContexts = new Array( length );\n\t\t\tresolveContexts = new Array( length );\n\t\t\tfor ( ; i < length; i++ ) {\n\t\t\t\tif ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {\n\t\t\t\t\tresolveValues[ i ].promise()\n\t\t\t\t\t\t.done( updateFunc( i, resolveContexts, resolveValues ) )\n\t\t\t\t\t\t.fail( deferred.reject )\n\t\t\t\t\t\t.progress( updateFunc( i, progressContexts, progressValues ) );\n\t\t\t\t} else {\n\t\t\t\t\t--remaining;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// if we're not waiting on anything, resolve the master\n\t\tif ( !remaining ) {\n\t\t\tdeferred.resolveWith( resolveContexts, resolveValues );\n\t\t}\n\n\t\treturn deferred.promise();\n\t}\n});\njQuery.support = (function( support ) {\n\tvar input = document.createElement(\"input\"),\n\t\tfragment = document.createDocumentFragment(),\n\t\tdiv = document.createElement(\"div\"),\n\t\tselect = document.createElement(\"select\"),\n\t\topt = select.appendChild( document.createElement(\"option\") );\n\n\t// Finish early in limited environments\n\tif ( !input.type ) {\n\t\treturn support;\n\t}\n\n\tinput.type = \"checkbox\";\n\n\t// Support: Safari 5.1, iOS 5.1, Android 4.x, Android 2.3\n\t// Check the default checkbox/radio value (\"\" on old WebKit; \"on\" elsewhere)\n\tsupport.checkOn = input.value !== \"\";\n\n\t// Must access the parent to make an option select properly\n\t// Support: IE9, IE10\n\tsupport.optSelected = opt.selected;\n\n\t// Will be defined later\n\tsupport.reliableMarginRight = true;\n\tsupport.boxSizingReliable = true;\n\tsupport.pixelPosition = false;\n\n\t// Make sure checked status is properly cloned\n\t// Support: IE9, IE10\n\tinput.checked = true;\n\tsupport.noCloneChecked = input.cloneNode( true ).checked;\n\n\t// Make sure that the options inside disabled selects aren't marked as disabled\n\t// (WebKit marks them as disabled)\n\tselect.disabled = true;\n\tsupport.optDisabled = !opt.disabled;\n\n\t// Check if an input maintains its value after becoming a radio\n\t// Support: IE9, IE10\n\tinput = document.createElement(\"input\");\n\tinput.value = \"t\";\n\tinput.type = \"radio\";\n\tsupport.radioValue = input.value === \"t\";\n\n\t// #11217 - WebKit loses check when the name is after the checked attribute\n\tinput.setAttribute( \"checked\", \"t\" );\n\tinput.setAttribute( \"name\", \"t\" );\n\n\tfragment.appendChild( input );\n\n\t// Support: Safari 5.1, Android 4.x, Android 2.3\n\t// old WebKit doesn't clone checked state correctly in fragments\n\tsupport.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;\n\n\t// Support: Firefox, Chrome, Safari\n\t// Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)\n\tsupport.focusinBubbles = \"onfocusin\" in window;\n\n\tdiv.style.backgroundClip = \"content-box\";\n\tdiv.cloneNode( true ).style.backgroundClip = \"\";\n\tsupport.clearCloneStyle = div.style.backgroundClip === \"content-box\";\n\n\t// Run tests that need a body at doc ready\n\tjQuery(function() {\n\t\tvar container, marginDiv,\n\t\t\t// Support: Firefox, Android 2.3 (Prefixed box-sizing versions).\n\t\t\tdivReset = \"padding:0;margin:0;border:0;display:block;-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box\",\n\t\t\tbody = document.getElementsByTagName(\"body\")[ 0 ];\n\n\t\tif ( !body ) {\n\t\t\t// Return for frameset docs that don't have a body\n\t\t\treturn;\n\t\t}\n\n\t\tcontainer = document.createElement(\"div\");\n\t\tcontainer.style.cssText = \"border:0;width:0;height:0;position:absolute;top:0;left:-9999px;margin-top:1px\";\n\n\t\t// Check box-sizing and margin behavior.\n\t\tbody.appendChild( container ).appendChild( div );\n\t\tdiv.innerHTML = \"\";\n\t\t// Support: Firefox, Android 2.3 (Prefixed box-sizing versions).\n\t\tdiv.style.cssText = \"-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;position:absolute;top:1%\";\n\n\t\t// Workaround failing boxSizing test due to offsetWidth returning wrong value\n\t\t// with some non-1 values of body zoom, ticket #13543\n\t\tjQuery.swap( body, body.style.zoom != null ? { zoom: 1 } : {}, function() {\n\t\t\tsupport.boxSizing = div.offsetWidth === 4;\n\t\t});\n\n\t\t// Use window.getComputedStyle because jsdom on node.js will break without it.\n\t\tif ( window.getComputedStyle ) {\n\t\t\tsupport.pixelPosition = ( window.getComputedStyle( div, null ) || {} ).top !== \"1%\";\n\t\t\tsupport.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: \"4px\" } ).width === \"4px\";\n\n\t\t\t// Support: Android 2.3\n\t\t\t// Check if div with explicit width and no margin-right incorrectly\n\t\t\t// gets computed margin-right based on width of container. (#3333)\n\t\t\t// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right\n\t\t\tmarginDiv = div.appendChild( document.createElement(\"div\") );\n\t\t\tmarginDiv.style.cssText = div.style.cssText = divReset;\n\t\t\tmarginDiv.style.marginRight = marginDiv.style.width = \"0\";\n\t\t\tdiv.style.width = \"1px\";\n\n\t\t\tsupport.reliableMarginRight =\n\t\t\t\t!parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );\n\t\t}\n\n\t\tbody.removeChild( container );\n\t});\n\n\treturn support;\n})( {} );\n\n/*\n\tImplementation Summary\n\n\t1. Enforce API surface and semantic compatibility with 1.9.x branch\n\t2. Improve the module's maintainability by reducing the storage\n\t\tpaths to a single mechanism.\n\t3. Use the same single mechanism to support \"private\" and \"user\" data.\n\t4. _Never_ expose \"private\" data to user code (TODO: Drop _data, _removeData)\n\t5. Avoid exposing implementation details on user objects (eg. expando properties)\n\t6. Provide a clear path for implementation upgrade to WeakMap in 2014\n*/\nvar data_user, data_priv,\n\trbrace = /(?:\\{[\\s\\S]*\\}|\\[[\\s\\S]*\\])$/,\n\trmultiDash = /([A-Z])/g;\n\nfunction Data() {\n\t// Support: Android < 4,\n\t// Old WebKit does not have Object.preventExtensions/freeze method,\n\t// return new empty object instead with no [[set]] accessor\n\tObject.defineProperty( this.cache = {}, 0, {\n\t\tget: function() {\n\t\t\treturn {};\n\t\t}\n\t});\n\n\tthis.expando = jQuery.expando + Math.random();\n}\n\nData.uid = 1;\n\nData.accepts = function( owner ) {\n\t// Accepts only:\n\t// - Node\n\t// - Node.ELEMENT_NODE\n\t// - Node.DOCUMENT_NODE\n\t// - Object\n\t// - Any\n\treturn owner.nodeType ?\n\t\towner.nodeType === 1 || owner.nodeType === 9 : true;\n};\n\nData.prototype = {\n\tkey: function( owner ) {\n\t\t// We can accept data for non-element nodes in modern browsers,\n\t\t// but we should not, see #8335.\n\t\t// Always return the key for a frozen object.\n\t\tif ( !Data.accepts( owner ) ) {\n\t\t\treturn 0;\n\t\t}\n\n\t\tvar descriptor = {},\n\t\t\t// Check if the owner object already has a cache key\n\t\t\tunlock = owner[ this.expando ];\n\n\t\t// If not, create one\n\t\tif ( !unlock ) {\n\t\t\tunlock = Data.uid++;\n\n\t\t\t// Secure it in a non-enumerable, non-writable property\n\t\t\ttry {\n\t\t\t\tdescriptor[ this.expando ] = { value: unlock };\n\t\t\t\tObject.defineProperties( owner, descriptor );\n\n\t\t\t// Support: Android < 4\n\t\t\t// Fallback to a less secure definition\n\t\t\t} catch ( e ) {\n\t\t\t\tdescriptor[ this.expando ] = unlock;\n\t\t\t\tjQuery.extend( owner, descriptor );\n\t\t\t}\n\t\t}\n\n\t\t// Ensure the cache object\n\t\tif ( !this.cache[ unlock ] ) {\n\t\t\tthis.cache[ unlock ] = {};\n\t\t}\n\n\t\treturn unlock;\n\t},\n\tset: function( owner, data, value ) {\n\t\tvar prop,\n\t\t\t// There may be an unlock assigned to this node,\n\t\t\t// if there is no entry for this \"owner\", create one inline\n\t\t\t// and set the unlock as though an owner entry had always existed\n\t\t\tunlock = this.key( owner ),\n\t\t\tcache = this.cache[ unlock ];\n\n\t\t// Handle: [ owner, key, value ] args\n\t\tif ( typeof data === \"string\" ) {\n\t\t\tcache[ data ] = value;\n\n\t\t// Handle: [ owner, { properties } ] args\n\t\t} else {\n\t\t\t// Fresh assignments by object are shallow copied\n\t\t\tif ( jQuery.isEmptyObject( cache ) ) {\n\t\t\t\tjQuery.extend( this.cache[ unlock ], data );\n\t\t\t// Otherwise, copy the properties one-by-one to the cache object\n\t\t\t} else {\n\t\t\t\tfor ( prop in data ) {\n\t\t\t\t\tcache[ prop ] = data[ prop ];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\treturn cache;\n\t},\n\tget: function( owner, key ) {\n\t\t// Either a valid cache is found, or will be created.\n\t\t// New caches will be created and the unlock returned,\n\t\t// allowing direct access to the newly created\n\t\t// empty data object. A valid owner object must be provided.\n\t\tvar cache = this.cache[ this.key( owner ) ];\n\n\t\treturn key === undefined ?\n\t\t\tcache : cache[ key ];\n\t},\n\taccess: function( owner, key, value ) {\n\t\tvar stored;\n\t\t// In cases where either:\n\t\t//\n\t\t// 1. No key was specified\n\t\t// 2. A string key was specified, but no value provided\n\t\t//\n\t\t// Take the \"read\" path and allow the get method to determine\n\t\t// which value to return, respectively either:\n\t\t//\n\t\t// 1. The entire cache object\n\t\t// 2. The data stored at the key\n\t\t//\n\t\tif ( key === undefined ||\n\t\t\t\t((key && typeof key === \"string\") && value === undefined) ) {\n\n\t\t\tstored = this.get( owner, key );\n\n\t\t\treturn stored !== undefined ?\n\t\t\t\tstored : this.get( owner, jQuery.camelCase(key) );\n\t\t}\n\n\t\t// [*]When the key is not a string, or both a key and value\n\t\t// are specified, set or extend (existing objects) with either:\n\t\t//\n\t\t// 1. An object of properties\n\t\t// 2. A key and value\n\t\t//\n\t\tthis.set( owner, key, value );\n\n\t\t// Since the \"set\" path can have two possible entry points\n\t\t// return the expected data based on which path was taken[*]\n\t\treturn value !== undefined ? value : key;\n\t},\n\tremove: function( owner, key ) {\n\t\tvar i, name, camel,\n\t\t\tunlock = this.key( owner ),\n\t\t\tcache = this.cache[ unlock ];\n\n\t\tif ( key === undefined ) {\n\t\t\tthis.cache[ unlock ] = {};\n\n\t\t} else {\n\t\t\t// Support array or space separated string of keys\n\t\t\tif ( jQuery.isArray( key ) ) {\n\t\t\t\t// If \"name\" is an array of keys...\n\t\t\t\t// When data is initially created, via (\"key\", \"val\") signature,\n\t\t\t\t// keys will be converted to camelCase.\n\t\t\t\t// Since there is no way to tell _how_ a key was added, remove\n\t\t\t\t// both plain key and camelCase key. #12786\n\t\t\t\t// This will only penalize the array argument path.\n\t\t\t\tname = key.concat( key.map( jQuery.camelCase ) );\n\t\t\t} else {\n\t\t\t\tcamel = jQuery.camelCase( key );\n\t\t\t\t// Try the string as a key before any manipulation\n\t\t\t\tif ( key in cache ) {\n\t\t\t\t\tname = [ key, camel ];\n\t\t\t\t} else {\n\t\t\t\t\t// If a key with the spaces exists, use it.\n\t\t\t\t\t// Otherwise, create an array by matching non-whitespace\n\t\t\t\t\tname = camel;\n\t\t\t\t\tname = name in cache ?\n\t\t\t\t\t\t[ name ] : ( name.match( core_rnotwhite ) || [] );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\ti = name.length;\n\t\t\twhile ( i-- ) {\n\t\t\t\tdelete cache[ name[ i ] ];\n\t\t\t}\n\t\t}\n\t},\n\thasData: function( owner ) {\n\t\treturn !jQuery.isEmptyObject(\n\t\t\tthis.cache[ owner[ this.expando ] ] || {}\n\t\t);\n\t},\n\tdiscard: function( owner ) {\n\t\tif ( owner[ this.expando ] ) {\n\t\t\tdelete this.cache[ owner[ this.expando ] ];\n\t\t}\n\t}\n};\n\n// These may be used throughout the jQuery core codebase\ndata_user = new Data();\ndata_priv = new Data();\n\n\njQuery.extend({\n\tacceptData: Data.accepts,\n\n\thasData: function( elem ) {\n\t\treturn data_user.hasData( elem ) || data_priv.hasData( elem );\n\t},\n\n\tdata: function( elem, name, data ) {\n\t\treturn data_user.access( elem, name, data );\n\t},\n\n\tremoveData: function( elem, name ) {\n\t\tdata_user.remove( elem, name );\n\t},\n\n\t// TODO: Now that all calls to _data and _removeData have been replaced\n\t// with direct calls to data_priv methods, these can be deprecated.\n\t_data: function( elem, name, data ) {\n\t\treturn data_priv.access( elem, name, data );\n\t},\n\n\t_removeData: function( elem, name ) {\n\t\tdata_priv.remove( elem, name );\n\t}\n});\n\njQuery.fn.extend({\n\tdata: function( key, value ) {\n\t\tvar attrs, name,\n\t\t\telem = this[ 0 ],\n\t\t\ti = 0,\n\t\t\tdata = null;\n\n\t\t// Gets all values\n\t\tif ( key === undefined ) {\n\t\t\tif ( this.length ) {\n\t\t\t\tdata = data_user.get( elem );\n\n\t\t\t\tif ( elem.nodeType === 1 && !data_priv.get( elem, \"hasDataAttrs\" ) ) {\n\t\t\t\t\tattrs = elem.attributes;\n\t\t\t\t\tfor ( ; i < attrs.length; i++ ) {\n\t\t\t\t\t\tname = attrs[ i ].name;\n\n\t\t\t\t\t\tif ( name.indexOf( \"data-\" ) === 0 ) {\n\t\t\t\t\t\t\tname = jQuery.camelCase( name.slice(5) );\n\t\t\t\t\t\t\tdataAttr( elem, name, data[ name ] );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tdata_priv.set( elem, \"hasDataAttrs\", true );\n\t\t\t\t}\n\t\t\t}\n\n\t\t\treturn data;\n\t\t}\n\n\t\t// Sets multiple values\n\t\tif ( typeof key === \"object\" ) {\n\t\t\treturn this.each(function() {\n\t\t\t\tdata_user.set( this, key );\n\t\t\t});\n\t\t}\n\n\t\treturn jQuery.access( this, function( value ) {\n\t\t\tvar data,\n\t\t\t\tcamelKey = jQuery.camelCase( key );\n\n\t\t\t// The calling jQuery object (element matches) is not empty\n\t\t\t// (and therefore has an element appears at this[ 0 ]) and the\n\t\t\t// `value` parameter was not undefined. An empty jQuery object\n\t\t\t// will result in `undefined` for elem = this[ 0 ] which will\n\t\t\t// throw an exception if an attempt to read a data cache is made.\n\t\t\tif ( elem && value === undefined ) {\n\t\t\t\t// Attempt to get data from the cache\n\t\t\t\t// with the key as-is\n\t\t\t\tdata = data_user.get( elem, key );\n\t\t\t\tif ( data !== undefined ) {\n\t\t\t\t\treturn data;\n\t\t\t\t}\n\n\t\t\t\t// Attempt to get data from the cache\n\t\t\t\t// with the key camelized\n\t\t\t\tdata = data_user.get( elem, camelKey );\n\t\t\t\tif ( data !== undefined ) {\n\t\t\t\t\treturn data;\n\t\t\t\t}\n\n\t\t\t\t// Attempt to \"discover\" the data in\n\t\t\t\t// HTML5 custom data-* attrs\n\t\t\t\tdata = dataAttr( elem, camelKey, undefined );\n\t\t\t\tif ( data !== undefined ) {\n\t\t\t\t\treturn data;\n\t\t\t\t}\n\n\t\t\t\t// We tried really hard, but the data doesn't exist.\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// Set the data...\n\t\t\tthis.each(function() {\n\t\t\t\t// First, attempt to store a copy or reference of any\n\t\t\t\t// data that might've been store with a camelCased key.\n\t\t\t\tvar data = data_user.get( this, camelKey );\n\n\t\t\t\t// For HTML5 data-* attribute interop, we have to\n\t\t\t\t// store property names with dashes in a camelCase form.\n\t\t\t\t// This might not apply to all properties...*\n\t\t\t\tdata_user.set( this, camelKey, value );\n\n\t\t\t\t// *... In the case of properties that might _actually_\n\t\t\t\t// have dashes, we need to also store a copy of that\n\t\t\t\t// unchanged property.\n\t\t\t\tif ( key.indexOf(\"-\") !== -1 && data !== undefined ) {\n\t\t\t\t\tdata_user.set( this, key, value );\n\t\t\t\t}\n\t\t\t});\n\t\t}, null, value, arguments.length > 1, null, true );\n\t},\n\n\tremoveData: function( key ) {\n\t\treturn this.each(function() {\n\t\t\tdata_user.remove( this, key );\n\t\t});\n\t}\n});\n\nfunction dataAttr( elem, key, data ) {\n\tvar name;\n\n\t// If nothing was found internally, try to fetch any\n\t// data from the HTML5 data-* attribute\n\tif ( data === undefined && elem.nodeType === 1 ) {\n\t\tname = \"data-\" + key.replace( rmultiDash, \"-$1\" ).toLowerCase();\n\t\tdata = elem.getAttribute( name );\n\n\t\tif ( typeof data === \"string\" ) {\n\t\t\ttry {\n\t\t\t\tdata = data === \"true\" ? true :\n\t\t\t\t\tdata === \"false\" ? false :\n\t\t\t\t\tdata === \"null\" ? null :\n\t\t\t\t\t// Only convert to a number if it doesn't change the string\n\t\t\t\t\t+data + \"\" === data ? +data :\n\t\t\t\t\trbrace.test( data ) ? JSON.parse( data ) :\n\t\t\t\t\tdata;\n\t\t\t} catch( e ) {}\n\n\t\t\t// Make sure we set the data so it isn't changed later\n\t\t\tdata_user.set( elem, key, data );\n\t\t} else {\n\t\t\tdata = undefined;\n\t\t}\n\t}\n\treturn data;\n}\njQuery.extend({\n\tqueue: function( elem, type, data ) {\n\t\tvar queue;\n\n\t\tif ( elem ) {\n\t\t\ttype = ( type || \"fx\" ) + \"queue\";\n\t\t\tqueue = data_priv.get( elem, type );\n\n\t\t\t// Speed up dequeue by getting out quickly if this is just a lookup\n\t\t\tif ( data ) {\n\t\t\t\tif ( !queue || jQuery.isArray( data ) ) {\n\t\t\t\t\tqueue = data_priv.access( elem, type, jQuery.makeArray(data) );\n\t\t\t\t} else {\n\t\t\t\t\tqueue.push( data );\n\t\t\t\t}\n\t\t\t}\n\t\t\treturn queue || [];\n\t\t}\n\t},\n\n\tdequeue: function( elem, type ) {\n\t\ttype = type || \"fx\";\n\n\t\tvar queue = jQuery.queue( elem, type ),\n\t\t\tstartLength = queue.length,\n\t\t\tfn = queue.shift(),\n\t\t\thooks = jQuery._queueHooks( elem, type ),\n\t\t\tnext = function() {\n\t\t\t\tjQuery.dequeue( elem, type );\n\t\t\t};\n\n\t\t// If the fx queue is dequeued, always remove the progress sentinel\n\t\tif ( fn === \"inprogress\" ) {\n\t\t\tfn = queue.shift();\n\t\t\tstartLength--;\n\t\t}\n\n\t\tif ( fn ) {\n\n\t\t\t// Add a progress sentinel to prevent the fx queue from being\n\t\t\t// automatically dequeued\n\t\t\tif ( type === \"fx\" ) {\n\t\t\t\tqueue.unshift( \"inprogress\" );\n\t\t\t}\n\n\t\t\t// clear up the last queue stop function\n\t\t\tdelete hooks.stop;\n\t\t\tfn.call( elem, next, hooks );\n\t\t}\n\n\t\tif ( !startLength && hooks ) {\n\t\t\thooks.empty.fire();\n\t\t}\n\t},\n\n\t// not intended for public consumption - generates a queueHooks object, or returns the current one\n\t_queueHooks: function( elem, type ) {\n\t\tvar key = type + \"queueHooks\";\n\t\treturn data_priv.get( elem, key ) || data_priv.access( elem, key, {\n\t\t\tempty: jQuery.Callbacks(\"once memory\").add(function() {\n\t\t\t\tdata_priv.remove( elem, [ type + \"queue\", key ] );\n\t\t\t})\n\t\t});\n\t}\n});\n\njQuery.fn.extend({\n\tqueue: function( type, data ) {\n\t\tvar setter = 2;\n\n\t\tif ( typeof type !== \"string\" ) {\n\t\t\tdata = type;\n\t\t\ttype = \"fx\";\n\t\t\tsetter--;\n\t\t}\n\n\t\tif ( arguments.length < setter ) {\n\t\t\treturn jQuery.queue( this[0], type );\n\t\t}\n\n\t\treturn data === undefined ?\n\t\t\tthis :\n\t\t\tthis.each(function() {\n\t\t\t\tvar queue = jQuery.queue( this, type, data );\n\n\t\t\t\t// ensure a hooks for this queue\n\t\t\t\tjQuery._queueHooks( this, type );\n\n\t\t\t\tif ( type === \"fx\" && queue[0] !== \"inprogress\" ) {\n\t\t\t\t\tjQuery.dequeue( this, type );\n\t\t\t\t}\n\t\t\t});\n\t},\n\tdequeue: function( type ) {\n\t\treturn this.each(function() {\n\t\t\tjQuery.dequeue( this, type );\n\t\t});\n\t},\n\t// Based off of the plugin by Clint Helfers, with permission.\n\t// http://blindsignals.com/index.php/2009/07/jquery-delay/\n\tdelay: function( time, type ) {\n\t\ttime = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;\n\t\ttype = type || \"fx\";\n\n\t\treturn this.queue( type, function( next, hooks ) {\n\t\t\tvar timeout = setTimeout( next, time );\n\t\t\thooks.stop = function() {\n\t\t\t\tclearTimeout( timeout );\n\t\t\t};\n\t\t});\n\t},\n\tclearQueue: function( type ) {\n\t\treturn this.queue( type || \"fx\", [] );\n\t},\n\t// Get a promise resolved when queues of a certain type\n\t// are emptied (fx is the type by default)\n\tpromise: function( type, obj ) {\n\t\tvar tmp,\n\t\t\tcount = 1,\n\t\t\tdefer = jQuery.Deferred(),\n\t\t\telements = this,\n\t\t\ti = this.length,\n\t\t\tresolve = function() {\n\t\t\t\tif ( !( --count ) ) {\n\t\t\t\t\tdefer.resolveWith( elements, [ elements ] );\n\t\t\t\t}\n\t\t\t};\n\n\t\tif ( typeof type !== \"string\" ) {\n\t\t\tobj = type;\n\t\t\ttype = undefined;\n\t\t}\n\t\ttype = type || \"fx\";\n\n\t\twhile( i-- ) {\n\t\t\ttmp = data_priv.get( elements[ i ], type + \"queueHooks\" );\n\t\t\tif ( tmp && tmp.empty ) {\n\t\t\t\tcount++;\n\t\t\t\ttmp.empty.add( resolve );\n\t\t\t}\n\t\t}\n\t\tresolve();\n\t\treturn defer.promise( obj );\n\t}\n});\nvar nodeHook, boolHook,\n\trclass = /[\\t\\r\\n\\f]/g,\n\trreturn = /\\r/g,\n\trfocusable = /^(?:input|select|textarea|button)$/i;\n\njQuery.fn.extend({\n\tattr: function( name, value ) {\n\t\treturn jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );\n\t},\n\n\tremoveAttr: function( name ) {\n\t\treturn this.each(function() {\n\t\t\tjQuery.removeAttr( this, name );\n\t\t});\n\t},\n\n\tprop: function( name, value ) {\n\t\treturn jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );\n\t},\n\n\tremoveProp: function( name ) {\n\t\treturn this.each(function() {\n\t\t\tdelete this[ jQuery.propFix[ name ] || name ];\n\t\t});\n\t},\n\n\taddClass: function( value ) {\n\t\tvar classes, elem, cur, clazz, j,\n\t\t\ti = 0,\n\t\t\tlen = this.length,\n\t\t\tproceed = typeof value === \"string\" && value;\n\n\t\tif ( jQuery.isFunction( value ) ) {\n\t\t\treturn this.each(function( j ) {\n\t\t\t\tjQuery( this ).addClass( value.call( this, j, this.className ) );\n\t\t\t});\n\t\t}\n\n\t\tif ( proceed ) {\n\t\t\t// The disjunction here is for better compressibility (see removeClass)\n\t\t\tclasses = ( value || \"\" ).match( core_rnotwhite ) || [];\n\n\t\t\tfor ( ; i < len; i++ ) {\n\t\t\t\telem = this[ i ];\n\t\t\t\tcur = elem.nodeType === 1 && ( elem.className ?\n\t\t\t\t\t( \" \" + elem.className + \" \" ).replace( rclass, \" \" ) :\n\t\t\t\t\t\" \"\n\t\t\t\t);\n\n\t\t\t\tif ( cur ) {\n\t\t\t\t\tj = 0;\n\t\t\t\t\twhile ( (clazz = classes[j++]) ) {\n\t\t\t\t\t\tif ( cur.indexOf( \" \" + clazz + \" \" ) < 0 ) {\n\t\t\t\t\t\t\tcur += clazz + \" \";\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\telem.className = jQuery.trim( cur );\n\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t},\n\n\tremoveClass: function( value ) {\n\t\tvar classes, elem, cur, clazz, j,\n\t\t\ti = 0,\n\t\t\tlen = this.length,\n\t\t\tproceed = arguments.length === 0 || typeof value === \"string\" && value;\n\n\t\tif ( jQuery.isFunction( value ) ) {\n\t\t\treturn this.each(function( j ) {\n\t\t\t\tjQuery( this ).removeClass( value.call( this, j, this.className ) );\n\t\t\t});\n\t\t}\n\t\tif ( proceed ) {\n\t\t\tclasses = ( value || \"\" ).match( core_rnotwhite ) || [];\n\n\t\t\tfor ( ; i < len; i++ ) {\n\t\t\t\telem = this[ i ];\n\t\t\t\t// This expression is here for better compressibility (see addClass)\n\t\t\t\tcur = elem.nodeType === 1 && ( elem.className ?\n\t\t\t\t\t( \" \" + elem.className + \" \" ).replace( rclass, \" \" ) :\n\t\t\t\t\t\"\"\n\t\t\t\t);\n\n\t\t\t\tif ( cur ) {\n\t\t\t\t\tj = 0;\n\t\t\t\t\twhile ( (clazz = classes[j++]) ) {\n\t\t\t\t\t\t// Remove *all* instances\n\t\t\t\t\t\twhile ( cur.indexOf( \" \" + clazz + \" \" ) >= 0 ) {\n\t\t\t\t\t\t\tcur = cur.replace( \" \" + clazz + \" \", \" \" );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\telem.className = value ? jQuery.trim( cur ) : \"\";\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t},\n\n\ttoggleClass: function( value, stateVal ) {\n\t\tvar type = typeof value;\n\n\t\tif ( typeof stateVal === \"boolean\" && type === \"string\" ) {\n\t\t\treturn stateVal ? this.addClass( value ) : this.removeClass( value );\n\t\t}\n\n\t\tif ( jQuery.isFunction( value ) ) {\n\t\t\treturn this.each(function( i ) {\n\t\t\t\tjQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );\n\t\t\t});\n\t\t}\n\n\t\treturn this.each(function() {\n\t\t\tif ( type === \"string\" ) {\n\t\t\t\t// toggle individual class names\n\t\t\t\tvar className,\n\t\t\t\t\ti = 0,\n\t\t\t\t\tself = jQuery( this ),\n\t\t\t\t\tclassNames = value.match( core_rnotwhite ) || [];\n\n\t\t\t\twhile ( (className = classNames[ i++ ]) ) {\n\t\t\t\t\t// check each className given, space separated list\n\t\t\t\t\tif ( self.hasClass( className ) ) {\n\t\t\t\t\t\tself.removeClass( className );\n\t\t\t\t\t} else {\n\t\t\t\t\t\tself.addClass( className );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t// Toggle whole class name\n\t\t\t} else if ( type === core_strundefined || type === \"boolean\" ) {\n\t\t\t\tif ( this.className ) {\n\t\t\t\t\t// store className if set\n\t\t\t\t\tdata_priv.set( this, \"__className__\", this.className );\n\t\t\t\t}\n\n\t\t\t\t// If the element has a class name or if we're passed \"false\",\n\t\t\t\t// then remove the whole classname (if there was one, the above saved it).\n\t\t\t\t// Otherwise bring back whatever was previously saved (if anything),\n\t\t\t\t// falling back to the empty string if nothing was stored.\n\t\t\t\tthis.className = this.className || value === false ? \"\" : data_priv.get( this, \"__className__\" ) || \"\";\n\t\t\t}\n\t\t});\n\t},\n\n\thasClass: function( selector ) {\n\t\tvar className = \" \" + selector + \" \",\n\t\t\ti = 0,\n\t\t\tl = this.length;\n\t\tfor ( ; i < l; i++ ) {\n\t\t\tif ( this[i].nodeType === 1 && (\" \" + this[i].className + \" \").replace(rclass, \" \").indexOf( className ) >= 0 ) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\n\t\treturn false;\n\t},\n\n\tval: function( value ) {\n\t\tvar hooks, ret, isFunction,\n\t\t\telem = this[0];\n\n\t\tif ( !arguments.length ) {\n\t\t\tif ( elem ) {\n\t\t\t\thooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];\n\n\t\t\t\tif ( hooks && \"get\" in hooks && (ret = hooks.get( elem, \"value\" )) !== undefined ) {\n\t\t\t\t\treturn ret;\n\t\t\t\t}\n\n\t\t\t\tret = elem.value;\n\n\t\t\t\treturn typeof ret === \"string\" ?\n\t\t\t\t\t// handle most common string cases\n\t\t\t\t\tret.replace(rreturn, \"\") :\n\t\t\t\t\t// handle cases where value is null/undef or number\n\t\t\t\t\tret == null ? \"\" : ret;\n\t\t\t}\n\n\t\t\treturn;\n\t\t}\n\n\t\tisFunction = jQuery.isFunction( value );\n\n\t\treturn this.each(function( i ) {\n\t\t\tvar val;\n\n\t\t\tif ( this.nodeType !== 1 ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\tif ( isFunction ) {\n\t\t\t\tval = value.call( this, i, jQuery( this ).val() );\n\t\t\t} else {\n\t\t\t\tval = value;\n\t\t\t}\n\n\t\t\t// Treat null/undefined as \"\"; convert numbers to string\n\t\t\tif ( val == null ) {\n\t\t\t\tval = \"\";\n\t\t\t} else if ( typeof val === \"number\" ) {\n\t\t\t\tval += \"\";\n\t\t\t} else if ( jQuery.isArray( val ) ) {\n\t\t\t\tval = jQuery.map(val, function ( value ) {\n\t\t\t\t\treturn value == null ? \"\" : value + \"\";\n\t\t\t\t});\n\t\t\t}\n\n\t\t\thooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];\n\n\t\t\t// If set returns undefined, fall back to normal setting\n\t\t\tif ( !hooks || !(\"set\" in hooks) || hooks.set( this, val, \"value\" ) === undefined ) {\n\t\t\t\tthis.value = val;\n\t\t\t}\n\t\t});\n\t}\n});\n\njQuery.extend({\n\tvalHooks: {\n\t\toption: {\n\t\t\tget: function( elem ) {\n\t\t\t\t// attributes.value is undefined in Blackberry 4.7 but\n\t\t\t\t// uses .value. See #6932\n\t\t\t\tvar val = elem.attributes.value;\n\t\t\t\treturn !val || val.specified ? elem.value : elem.text;\n\t\t\t}\n\t\t},\n\t\tselect: {\n\t\t\tget: function( elem ) {\n\t\t\t\tvar value, option,\n\t\t\t\t\toptions = elem.options,\n\t\t\t\t\tindex = elem.selectedIndex,\n\t\t\t\t\tone = elem.type === \"select-one\" || index < 0,\n\t\t\t\t\tvalues = one ? null : [],\n\t\t\t\t\tmax = one ? index + 1 : options.length,\n\t\t\t\t\ti = index < 0 ?\n\t\t\t\t\t\tmax :\n\t\t\t\t\t\tone ? index : 0;\n\n\t\t\t\t// Loop through all the selected options\n\t\t\t\tfor ( ; i < max; i++ ) {\n\t\t\t\t\toption = options[ i ];\n\n\t\t\t\t\t// IE6-9 doesn't update selected after form reset (#2551)\n\t\t\t\t\tif ( ( option.selected || i === index ) &&\n\t\t\t\t\t\t\t// Don't return options that are disabled or in a disabled optgroup\n\t\t\t\t\t\t\t( jQuery.support.optDisabled ? !option.disabled : option.getAttribute(\"disabled\") === null ) &&\n\t\t\t\t\t\t\t( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, \"optgroup\" ) ) ) {\n\n\t\t\t\t\t\t// Get the specific value for the option\n\t\t\t\t\t\tvalue = jQuery( option ).val();\n\n\t\t\t\t\t\t// We don't need an array for one selects\n\t\t\t\t\t\tif ( one ) {\n\t\t\t\t\t\t\treturn value;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Multi-Selects return an array\n\t\t\t\t\t\tvalues.push( value );\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\treturn values;\n\t\t\t},\n\n\t\t\tset: function( elem, value ) {\n\t\t\t\tvar optionSet, option,\n\t\t\t\t\toptions = elem.options,\n\t\t\t\t\tvalues = jQuery.makeArray( value ),\n\t\t\t\t\ti = options.length;\n\n\t\t\t\twhile ( i-- ) {\n\t\t\t\t\toption = options[ i ];\n\t\t\t\t\tif ( (option.selected = jQuery.inArray( jQuery(option).val(), values ) >= 0) ) {\n\t\t\t\t\t\toptionSet = true;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t// force browsers to behave consistently when non-matching value is set\n\t\t\t\tif ( !optionSet ) {\n\t\t\t\t\telem.selectedIndex = -1;\n\t\t\t\t}\n\t\t\t\treturn values;\n\t\t\t}\n\t\t}\n\t},\n\n\tattr: function( elem, name, value ) {\n\t\tvar hooks, ret,\n\t\t\tnType = elem.nodeType;\n\n\t\t// don't get/set attributes on text, comment and attribute nodes\n\t\tif ( !elem || nType === 3 || nType === 8 || nType === 2 ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Fallback to prop when attributes are not supported\n\t\tif ( typeof elem.getAttribute === core_strundefined ) {\n\t\t\treturn jQuery.prop( elem, name, value );\n\t\t}\n\n\t\t// All attributes are lowercase\n\t\t// Grab necessary hook if one is defined\n\t\tif ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {\n\t\t\tname = name.toLowerCase();\n\t\t\thooks = jQuery.attrHooks[ name ] ||\n\t\t\t\t( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );\n\t\t}\n\n\t\tif ( value !== undefined ) {\n\n\t\t\tif ( value === null ) {\n\t\t\t\tjQuery.removeAttr( elem, name );\n\n\t\t\t} else if ( hooks && \"set\" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {\n\t\t\t\treturn ret;\n\n\t\t\t} else {\n\t\t\t\telem.setAttribute( name, value + \"\" );\n\t\t\t\treturn value;\n\t\t\t}\n\n\t\t} else if ( hooks && \"get\" in hooks && (ret = hooks.get( elem, name )) !== null ) {\n\t\t\treturn ret;\n\n\t\t} else {\n\t\t\tret = jQuery.find.attr( elem, name );\n\n\t\t\t// Non-existent attributes return null, we normalize to undefined\n\t\t\treturn ret == null ?\n\t\t\t\tundefined :\n\t\t\t\tret;\n\t\t}\n\t},\n\n\tremoveAttr: function( elem, value ) {\n\t\tvar name, propName,\n\t\t\ti = 0,\n\t\t\tattrNames = value && value.match( core_rnotwhite );\n\n\t\tif ( attrNames && elem.nodeType === 1 ) {\n\t\t\twhile ( (name = attrNames[i++]) ) {\n\t\t\t\tpropName = jQuery.propFix[ name ] || name;\n\n\t\t\t\t// Boolean attributes get special treatment (#10870)\n\t\t\t\tif ( jQuery.expr.match.bool.test( name ) ) {\n\t\t\t\t\t// Set corresponding property to false\n\t\t\t\t\telem[ propName ] = false;\n\t\t\t\t}\n\n\t\t\t\telem.removeAttribute( name );\n\t\t\t}\n\t\t}\n\t},\n\n\tattrHooks: {\n\t\ttype: {\n\t\t\tset: function( elem, value ) {\n\t\t\t\tif ( !jQuery.support.radioValue && value === \"radio\" && jQuery.nodeName(elem, \"input\") ) {\n\t\t\t\t\t// Setting the type on a radio button after the value resets the value in IE6-9\n\t\t\t\t\t// Reset value to default in case type is set after value during creation\n\t\t\t\t\tvar val = elem.value;\n\t\t\t\t\telem.setAttribute( \"type\", value );\n\t\t\t\t\tif ( val ) {\n\t\t\t\t\t\telem.value = val;\n\t\t\t\t\t}\n\t\t\t\t\treturn value;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\tpropFix: {\n\t\t\"for\": \"htmlFor\",\n\t\t\"class\": \"className\"\n\t},\n\n\tprop: function( elem, name, value ) {\n\t\tvar ret, hooks, notxml,\n\t\t\tnType = elem.nodeType;\n\n\t\t// don't get/set properties on text, comment and attribute nodes\n\t\tif ( !elem || nType === 3 || nType === 8 || nType === 2 ) {\n\t\t\treturn;\n\t\t}\n\n\t\tnotxml = nType !== 1 || !jQuery.isXMLDoc( elem );\n\n\t\tif ( notxml ) {\n\t\t\t// Fix name and attach hooks\n\t\t\tname = jQuery.propFix[ name ] || name;\n\t\t\thooks = jQuery.propHooks[ name ];\n\t\t}\n\n\t\tif ( value !== undefined ) {\n\t\t\treturn hooks && \"set\" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ?\n\t\t\t\tret :\n\t\t\t\t( elem[ name ] = value );\n\n\t\t} else {\n\t\t\treturn hooks && \"get\" in hooks && (ret = hooks.get( elem, name )) !== null ?\n\t\t\t\tret :\n\t\t\t\telem[ name ];\n\t\t}\n\t},\n\n\tpropHooks: {\n\t\ttabIndex: {\n\t\t\tget: function( elem ) {\n\t\t\t\treturn elem.hasAttribute( \"tabindex\" ) || rfocusable.test( elem.nodeName ) || elem.href ?\n\t\t\t\t\telem.tabIndex :\n\t\t\t\t\t-1;\n\t\t\t}\n\t\t}\n\t}\n});\n\n// Hooks for boolean attributes\nboolHook = {\n\tset: function( elem, value, name ) {\n\t\tif ( value === false ) {\n\t\t\t// Remove boolean attributes when set to false\n\t\t\tjQuery.removeAttr( elem, name );\n\t\t} else {\n\t\t\telem.setAttribute( name, name );\n\t\t}\n\t\treturn name;\n\t}\n};\njQuery.each( jQuery.expr.match.bool.source.match( /\\w+/g ), function( i, name ) {\n\tvar getter = jQuery.expr.attrHandle[ name ] || jQuery.find.attr;\n\n\tjQuery.expr.attrHandle[ name ] = function( elem, name, isXML ) {\n\t\tvar fn = jQuery.expr.attrHandle[ name ],\n\t\t\tret = isXML ?\n\t\t\t\tundefined :\n\t\t\t\t/* jshint eqeqeq: false */\n\t\t\t\t// Temporarily disable this handler to check existence\n\t\t\t\t(jQuery.expr.attrHandle[ name ] = undefined) !=\n\t\t\t\t\tgetter( elem, name, isXML ) ?\n\n\t\t\t\t\tname.toLowerCase() :\n\t\t\t\t\tnull;\n\n\t\t// Restore handler\n\t\tjQuery.expr.attrHandle[ name ] = fn;\n\n\t\treturn ret;\n\t};\n});\n\n// Support: IE9+\n// Selectedness for an option in an optgroup can be inaccurate\nif ( !jQuery.support.optSelected ) {\n\tjQuery.propHooks.selected = {\n\t\tget: function( elem ) {\n\t\t\tvar parent = elem.parentNode;\n\t\t\tif ( parent && parent.parentNode ) {\n\t\t\t\tparent.parentNode.selectedIndex;\n\t\t\t}\n\t\t\treturn null;\n\t\t}\n\t};\n}\n\njQuery.each([\n\t\"tabIndex\",\n\t\"readOnly\",\n\t\"maxLength\",\n\t\"cellSpacing\",\n\t\"cellPadding\",\n\t\"rowSpan\",\n\t\"colSpan\",\n\t\"useMap\",\n\t\"frameBorder\",\n\t\"contentEditable\"\n], function() {\n\tjQuery.propFix[ this.toLowerCase() ] = this;\n});\n\n// Radios and checkboxes getter/setter\njQuery.each([ \"radio\", \"checkbox\" ], function() {\n\tjQuery.valHooks[ this ] = {\n\t\tset: function( elem, value ) {\n\t\t\tif ( jQuery.isArray( value ) ) {\n\t\t\t\treturn ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );\n\t\t\t}\n\t\t}\n\t};\n\tif ( !jQuery.support.checkOn ) {\n\t\tjQuery.valHooks[ this ].get = function( elem ) {\n\t\t\t// Support: Webkit\n\t\t\t// \"\" is returned instead of \"on\" if a value isn't specified\n\t\t\treturn elem.getAttribute(\"value\") === null ? \"on\" : elem.value;\n\t\t};\n\t}\n});\nvar rkeyEvent = /^key/,\n\trmouseEvent = /^(?:mouse|contextmenu)|click/,\n\trfocusMorph = /^(?:focusinfocus|focusoutblur)$/,\n\trtypenamespace = /^([^.]*)(?:\\.(.+)|)$/;\n\nfunction returnTrue() {\n\treturn true;\n}\n\nfunction returnFalse() {\n\treturn false;\n}\n\nfunction safeActiveElement() {\n\ttry {\n\t\treturn document.activeElement;\n\t} catch ( err ) { }\n}\n\n/*\n * Helper functions for managing events -- not part of the public interface.\n * Props to Dean Edwards' addEvent library for many of the ideas.\n */\njQuery.event = {\n\n\tglobal: {},\n\n\tadd: function( elem, types, handler, data, selector ) {\n\n\t\tvar handleObjIn, eventHandle, tmp,\n\t\t\tevents, t, handleObj,\n\t\t\tspecial, handlers, type, namespaces, origType,\n\t\t\telemData = data_priv.get( elem );\n\n\t\t// Don't attach events to noData or text/comment nodes (but allow plain objects)\n\t\tif ( !elemData ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Caller can pass in an object of custom data in lieu of the handler\n\t\tif ( handler.handler ) {\n\t\t\thandleObjIn = handler;\n\t\t\thandler = handleObjIn.handler;\n\t\t\tselector = handleObjIn.selector;\n\t\t}\n\n\t\t// Make sure that the handler has a unique ID, used to find/remove it later\n\t\tif ( !handler.guid ) {\n\t\t\thandler.guid = jQuery.guid++;\n\t\t}\n\n\t\t// Init the element's event structure and main handler, if this is the first\n\t\tif ( !(events = elemData.events) ) {\n\t\t\tevents = elemData.events = {};\n\t\t}\n\t\tif ( !(eventHandle = elemData.handle) ) {\n\t\t\teventHandle = elemData.handle = function( e ) {\n\t\t\t\t// Discard the second event of a jQuery.event.trigger() and\n\t\t\t\t// when an event is called after a page has unloaded\n\t\t\t\treturn typeof jQuery !== core_strundefined && (!e || jQuery.event.triggered !== e.type) ?\n\t\t\t\t\tjQuery.event.dispatch.apply( eventHandle.elem, arguments ) :\n\t\t\t\t\tundefined;\n\t\t\t};\n\t\t\t// Add elem as a property of the handle fn to prevent a memory leak with IE non-native events\n\t\t\teventHandle.elem = elem;\n\t\t}\n\n\t\t// Handle multiple events separated by a space\n\t\ttypes = ( types || \"\" ).match( core_rnotwhite ) || [\"\"];\n\t\tt = types.length;\n\t\twhile ( t-- ) {\n\t\t\ttmp = rtypenamespace.exec( types[t] ) || [];\n\t\t\ttype = origType = tmp[1];\n\t\t\tnamespaces = ( tmp[2] || \"\" ).split( \".\" ).sort();\n\n\t\t\t// There *must* be a type, no attaching namespace-only handlers\n\t\t\tif ( !type ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// If event changes its type, use the special event handlers for the changed type\n\t\t\tspecial = jQuery.event.special[ type ] || {};\n\n\t\t\t// If selector defined, determine special event api type, otherwise given type\n\t\t\ttype = ( selector ? special.delegateType : special.bindType ) || type;\n\n\t\t\t// Update special based on newly reset type\n\t\t\tspecial = jQuery.event.special[ type ] || {};\n\n\t\t\t// handleObj is passed to all event handlers\n\t\t\thandleObj = jQuery.extend({\n\t\t\t\ttype: type,\n\t\t\t\torigType: origType,\n\t\t\t\tdata: data,\n\t\t\t\thandler: handler,\n\t\t\t\tguid: handler.guid,\n\t\t\t\tselector: selector,\n\t\t\t\tneedsContext: selector && jQuery.expr.match.needsContext.test( selector ),\n\t\t\t\tnamespace: namespaces.join(\".\")\n\t\t\t}, handleObjIn );\n\n\t\t\t// Init the event handler queue if we're the first\n\t\t\tif ( !(handlers = events[ type ]) ) {\n\t\t\t\thandlers = events[ type ] = [];\n\t\t\t\thandlers.delegateCount = 0;\n\n\t\t\t\t// Only use addEventListener if the special events handler returns false\n\t\t\t\tif ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {\n\t\t\t\t\tif ( elem.addEventListener ) {\n\t\t\t\t\t\telem.addEventListener( type, eventHandle, false );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif ( special.add ) {\n\t\t\t\tspecial.add.call( elem, handleObj );\n\n\t\t\t\tif ( !handleObj.handler.guid ) {\n\t\t\t\t\thandleObj.handler.guid = handler.guid;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Add to the element's handler list, delegates in front\n\t\t\tif ( selector ) {\n\t\t\t\thandlers.splice( handlers.delegateCount++, 0, handleObj );\n\t\t\t} else {\n\t\t\t\thandlers.push( handleObj );\n\t\t\t}\n\n\t\t\t// Keep track of which events have ever been used, for event optimization\n\t\t\tjQuery.event.global[ type ] = true;\n\t\t}\n\n\t\t// Nullify elem to prevent memory leaks in IE\n\t\telem = null;\n\t},\n\n\t// Detach an event or set of events from an element\n\tremove: function( elem, types, handler, selector, mappedTypes ) {\n\n\t\tvar j, origCount, tmp,\n\t\t\tevents, t, handleObj,\n\t\t\tspecial, handlers, type, namespaces, origType,\n\t\t\telemData = data_priv.hasData( elem ) && data_priv.get( elem );\n\n\t\tif ( !elemData || !(events = elemData.events) ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Once for each type.namespace in types; type may be omitted\n\t\ttypes = ( types || \"\" ).match( core_rnotwhite ) || [\"\"];\n\t\tt = types.length;\n\t\twhile ( t-- ) {\n\t\t\ttmp = rtypenamespace.exec( types[t] ) || [];\n\t\t\ttype = origType = tmp[1];\n\t\t\tnamespaces = ( tmp[2] || \"\" ).split( \".\" ).sort();\n\n\t\t\t// Unbind all events (on this namespace, if provided) for the element\n\t\t\tif ( !type ) {\n\t\t\t\tfor ( type in events ) {\n\t\t\t\t\tjQuery.event.remove( elem, type + types[ t ], handler, selector, true );\n\t\t\t\t}\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tspecial = jQuery.event.special[ type ] || {};\n\t\t\ttype = ( selector ? special.delegateType : special.bindType ) || type;\n\t\t\thandlers = events[ type ] || [];\n\t\t\ttmp = tmp[2] && new RegExp( \"(^|\\\\.)\" + namespaces.join(\"\\\\.(?:.*\\\\.|)\") + \"(\\\\.|$)\" );\n\n\t\t\t// Remove matching events\n\t\t\torigCount = j = handlers.length;\n\t\t\twhile ( j-- ) {\n\t\t\t\thandleObj = handlers[ j ];\n\n\t\t\t\tif ( ( mappedTypes || origType === handleObj.origType ) &&\n\t\t\t\t\t( !handler || handler.guid === handleObj.guid ) &&\n\t\t\t\t\t( !tmp || tmp.test( handleObj.namespace ) ) &&\n\t\t\t\t\t( !selector || selector === handleObj.selector || selector === \"**\" && handleObj.selector ) ) {\n\t\t\t\t\thandlers.splice( j, 1 );\n\n\t\t\t\t\tif ( handleObj.selector ) {\n\t\t\t\t\t\thandlers.delegateCount--;\n\t\t\t\t\t}\n\t\t\t\t\tif ( special.remove ) {\n\t\t\t\t\t\tspecial.remove.call( elem, handleObj );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// Remove generic event handler if we removed something and no more handlers exist\n\t\t\t// (avoids potential for endless recursion during removal of special event handlers)\n\t\t\tif ( origCount && !handlers.length ) {\n\t\t\t\tif ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {\n\t\t\t\t\tjQuery.removeEvent( elem, type, elemData.handle );\n\t\t\t\t}\n\n\t\t\t\tdelete events[ type ];\n\t\t\t}\n\t\t}\n\n\t\t// Remove the expando if it's no longer used\n\t\tif ( jQuery.isEmptyObject( events ) ) {\n\t\t\tdelete elemData.handle;\n\t\t\tdata_priv.remove( elem, \"events\" );\n\t\t}\n\t},\n\n\ttrigger: function( event, data, elem, onlyHandlers ) {\n\n\t\tvar i, cur, tmp, bubbleType, ontype, handle, special,\n\t\t\teventPath = [ elem || document ],\n\t\t\ttype = core_hasOwn.call( event, \"type\" ) ? event.type : event,\n\t\t\tnamespaces = core_hasOwn.call( event, \"namespace\" ) ? event.namespace.split(\".\") : [];\n\n\t\tcur = tmp = elem = elem || document;\n\n\t\t// Don't do events on text and comment nodes\n\t\tif ( elem.nodeType === 3 || elem.nodeType === 8 ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// focus/blur morphs to focusin/out; ensure we're not firing them right now\n\t\tif ( rfocusMorph.test( type + jQuery.event.triggered ) ) {\n\t\t\treturn;\n\t\t}\n\n\t\tif ( type.indexOf(\".\") >= 0 ) {\n\t\t\t// Namespaced trigger; create a regexp to match event type in handle()\n\t\t\tnamespaces = type.split(\".\");\n\t\t\ttype = namespaces.shift();\n\t\t\tnamespaces.sort();\n\t\t}\n\t\tontype = type.indexOf(\":\") < 0 && \"on\" + type;\n\n\t\t// Caller can pass in a jQuery.Event object, Object, or just an event type string\n\t\tevent = event[ jQuery.expando ] ?\n\t\t\tevent :\n\t\t\tnew jQuery.Event( type, typeof event === \"object\" && event );\n\n\t\t// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)\n\t\tevent.isTrigger = onlyHandlers ? 2 : 3;\n\t\tevent.namespace = namespaces.join(\".\");\n\t\tevent.namespace_re = event.namespace ?\n\t\t\tnew RegExp( \"(^|\\\\.)\" + namespaces.join(\"\\\\.(?:.*\\\\.|)\") + \"(\\\\.|$)\" ) :\n\t\t\tnull;\n\n\t\t// Clean up the event in case it is being reused\n\t\tevent.result = undefined;\n\t\tif ( !event.target ) {\n\t\t\tevent.target = elem;\n\t\t}\n\n\t\t// Clone any incoming data and prepend the event, creating the handler arg list\n\t\tdata = data == null ?\n\t\t\t[ event ] :\n\t\t\tjQuery.makeArray( data, [ event ] );\n\n\t\t// Allow special events to draw outside the lines\n\t\tspecial = jQuery.event.special[ type ] || {};\n\t\tif ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Determine event propagation path in advance, per W3C events spec (#9951)\n\t\t// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)\n\t\tif ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {\n\n\t\t\tbubbleType = special.delegateType || type;\n\t\t\tif ( !rfocusMorph.test( bubbleType + type ) ) {\n\t\t\t\tcur = cur.parentNode;\n\t\t\t}\n\t\t\tfor ( ; cur; cur = cur.parentNode ) {\n\t\t\t\teventPath.push( cur );\n\t\t\t\ttmp = cur;\n\t\t\t}\n\n\t\t\t// Only add window if we got to document (e.g., not plain obj or detached DOM)\n\t\t\tif ( tmp === (elem.ownerDocument || document) ) {\n\t\t\t\teventPath.push( tmp.defaultView || tmp.parentWindow || window );\n\t\t\t}\n\t\t}\n\n\t\t// Fire handlers on the event path\n\t\ti = 0;\n\t\twhile ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {\n\n\t\t\tevent.type = i > 1 ?\n\t\t\t\tbubbleType :\n\t\t\t\tspecial.bindType || type;\n\n\t\t\t// jQuery handler\n\t\t\thandle = ( data_priv.get( cur, \"events\" ) || {} )[ event.type ] && data_priv.get( cur, \"handle\" );\n\t\t\tif ( handle ) {\n\t\t\t\thandle.apply( cur, data );\n\t\t\t}\n\n\t\t\t// Native handler\n\t\t\thandle = ontype && cur[ ontype ];\n\t\t\tif ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === false ) {\n\t\t\t\tevent.preventDefault();\n\t\t\t}\n\t\t}\n\t\tevent.type = type;\n\n\t\t// If nobody prevented the default action, do it now\n\t\tif ( !onlyHandlers && !event.isDefaultPrevented() ) {\n\n\t\t\tif ( (!special._default || special._default.apply( eventPath.pop(), data ) === false) &&\n\t\t\t\tjQuery.acceptData( elem ) ) {\n\n\t\t\t\t// Call a native DOM method on the target with the same name name as the event.\n\t\t\t\t// Don't do default actions on window, that's where global variables be (#6170)\n\t\t\t\tif ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {\n\n\t\t\t\t\t// Don't re-trigger an onFOO event when we call its FOO() method\n\t\t\t\t\ttmp = elem[ ontype ];\n\n\t\t\t\t\tif ( tmp ) {\n\t\t\t\t\t\telem[ ontype ] = null;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Prevent re-triggering of the same event, since we already bubbled it above\n\t\t\t\t\tjQuery.event.triggered = type;\n\t\t\t\t\telem[ type ]();\n\t\t\t\t\tjQuery.event.triggered = undefined;\n\n\t\t\t\t\tif ( tmp ) {\n\t\t\t\t\t\telem[ ontype ] = tmp;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn event.result;\n\t},\n\n\tdispatch: function( event ) {\n\n\t\t// Make a writable jQuery.Event from the native event object\n\t\tevent = jQuery.event.fix( event );\n\n\t\tvar i, j, ret, matched, handleObj,\n\t\t\thandlerQueue = [],\n\t\t\targs = core_slice.call( arguments ),\n\t\t\thandlers = ( data_priv.get( this, \"events\" ) || {} )[ event.type ] || [],\n\t\t\tspecial = jQuery.event.special[ event.type ] || {};\n\n\t\t// Use the fix-ed jQuery.Event rather than the (read-only) native event\n\t\targs[0] = event;\n\t\tevent.delegateTarget = this;\n\n\t\t// Call the preDispatch hook for the mapped type, and let it bail if desired\n\t\tif ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Determine handlers\n\t\thandlerQueue = jQuery.event.handlers.call( this, event, handlers );\n\n\t\t// Run delegates first; they may want to stop propagation beneath us\n\t\ti = 0;\n\t\twhile ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) {\n\t\t\tevent.currentTarget = matched.elem;\n\n\t\t\tj = 0;\n\t\t\twhile ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) {\n\n\t\t\t\t// Triggered event must either 1) have no namespace, or\n\t\t\t\t// 2) have namespace(s) a subset or equal to those in the bound event (both can have no namespace).\n\t\t\t\tif ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) {\n\n\t\t\t\t\tevent.handleObj = handleObj;\n\t\t\t\t\tevent.data = handleObj.data;\n\n\t\t\t\t\tret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler )\n\t\t\t\t\t\t\t.apply( matched.elem, args );\n\n\t\t\t\t\tif ( ret !== undefined ) {\n\t\t\t\t\t\tif ( (event.result = ret) === false ) {\n\t\t\t\t\t\t\tevent.preventDefault();\n\t\t\t\t\t\t\tevent.stopPropagation();\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Call the postDispatch hook for the mapped type\n\t\tif ( special.postDispatch ) {\n\t\t\tspecial.postDispatch.call( this, event );\n\t\t}\n\n\t\treturn event.result;\n\t},\n\n\thandlers: function( event, handlers ) {\n\t\tvar i, matches, sel, handleObj,\n\t\t\thandlerQueue = [],\n\t\t\tdelegateCount = handlers.delegateCount,\n\t\t\tcur = event.target;\n\n\t\t// Find delegate handlers\n\t\t// Black-hole SVG instance trees (#13180)\n\t\t// Avoid non-left-click bubbling in Firefox (#3861)\n\t\tif ( delegateCount && cur.nodeType && (!event.button || event.type !== \"click\") ) {\n\n\t\t\tfor ( ; cur !== this; cur = cur.parentNode || this ) {\n\n\t\t\t\t// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)\n\t\t\t\tif ( cur.disabled !== true || event.type !== \"click\" ) {\n\t\t\t\t\tmatches = [];\n\t\t\t\t\tfor ( i = 0; i < delegateCount; i++ ) {\n\t\t\t\t\t\thandleObj = handlers[ i ];\n\n\t\t\t\t\t\t// Don't conflict with Object.prototype properties (#13203)\n\t\t\t\t\t\tsel = handleObj.selector + \" \";\n\n\t\t\t\t\t\tif ( matches[ sel ] === undefined ) {\n\t\t\t\t\t\t\tmatches[ sel ] = handleObj.needsContext ?\n\t\t\t\t\t\t\t\tjQuery( sel, this ).index( cur ) >= 0 :\n\t\t\t\t\t\t\t\tjQuery.find( sel, this, null, [ cur ] ).length;\n\t\t\t\t\t\t}\n\t\t\t\t\t\tif ( matches[ sel ] ) {\n\t\t\t\t\t\t\tmatches.push( handleObj );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tif ( matches.length ) {\n\t\t\t\t\t\thandlerQueue.push({ elem: cur, handlers: matches });\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Add the remaining (directly-bound) handlers\n\t\tif ( delegateCount < handlers.length ) {\n\t\t\thandlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) });\n\t\t}\n\n\t\treturn handlerQueue;\n\t},\n\n\t// Includes some event props shared by KeyEvent and MouseEvent\n\tprops: \"altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which\".split(\" \"),\n\n\tfixHooks: {},\n\n\tkeyHooks: {\n\t\tprops: \"char charCode key keyCode\".split(\" \"),\n\t\tfilter: function( event, original ) {\n\n\t\t\t// Add which for key events\n\t\t\tif ( event.which == null ) {\n\t\t\t\tevent.which = original.charCode != null ? original.charCode : original.keyCode;\n\t\t\t}\n\n\t\t\treturn event;\n\t\t}\n\t},\n\n\tmouseHooks: {\n\t\tprops: \"button buttons clientX clientY offsetX offsetY pageX pageY screenX screenY toElement\".split(\" \"),\n\t\tfilter: function( event, original ) {\n\t\t\tvar eventDoc, doc, body,\n\t\t\t\tbutton = original.button;\n\n\t\t\t// Calculate pageX/Y if missing and clientX/Y available\n\t\t\tif ( event.pageX == null && original.clientX != null ) {\n\t\t\t\teventDoc = event.target.ownerDocument || document;\n\t\t\t\tdoc = eventDoc.documentElement;\n\t\t\t\tbody = eventDoc.body;\n\n\t\t\t\tevent.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );\n\t\t\t\tevent.pageY = original.clientY + ( doc && doc.scrollTop || body && body.scrollTop || 0 ) - ( doc && doc.clientTop || body && body.clientTop || 0 );\n\t\t\t}\n\n\t\t\t// Add which for click: 1 === left; 2 === middle; 3 === right\n\t\t\t// Note: button is not normalized, so don't use it\n\t\t\tif ( !event.which && button !== undefined ) {\n\t\t\t\tevent.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );\n\t\t\t}\n\n\t\t\treturn event;\n\t\t}\n\t},\n\n\tfix: function( event ) {\n\t\tif ( event[ jQuery.expando ] ) {\n\t\t\treturn event;\n\t\t}\n\n\t\t// Create a writable copy of the event object and normalize some properties\n\t\tvar i, prop, copy,\n\t\t\ttype = event.type,\n\t\t\toriginalEvent = event,\n\t\t\tfixHook = this.fixHooks[ type ];\n\n\t\tif ( !fixHook ) {\n\t\t\tthis.fixHooks[ type ] = fixHook =\n\t\t\t\trmouseEvent.test( type ) ? this.mouseHooks :\n\t\t\t\trkeyEvent.test( type ) ? this.keyHooks :\n\t\t\t\t{};\n\t\t}\n\t\tcopy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;\n\n\t\tevent = new jQuery.Event( originalEvent );\n\n\t\ti = copy.length;\n\t\twhile ( i-- ) {\n\t\t\tprop = copy[ i ];\n\t\t\tevent[ prop ] = originalEvent[ prop ];\n\t\t}\n\n\t\t// Support: Cordova 2.5 (WebKit) (#13255)\n\t\t// All events should have a target; Cordova deviceready doesn't\n\t\tif ( !event.target ) {\n\t\t\tevent.target = document;\n\t\t}\n\n\t\t// Support: Safari 6.0+, Chrome < 28\n\t\t// Target should not be a text node (#504, #13143)\n\t\tif ( event.target.nodeType === 3 ) {\n\t\t\tevent.target = event.target.parentNode;\n\t\t}\n\n\t\treturn fixHook.filter? fixHook.filter( event, originalEvent ) : event;\n\t},\n\n\tspecial: {\n\t\tload: {\n\t\t\t// Prevent triggered image.load events from bubbling to window.load\n\t\t\tnoBubble: true\n\t\t},\n\t\tfocus: {\n\t\t\t// Fire native event if possible so blur/focus sequence is correct\n\t\t\ttrigger: function() {\n\t\t\t\tif ( this !== safeActiveElement() && this.focus ) {\n\t\t\t\t\tthis.focus();\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t},\n\t\t\tdelegateType: \"focusin\"\n\t\t},\n\t\tblur: {\n\t\t\ttrigger: function() {\n\t\t\t\tif ( this === safeActiveElement() && this.blur ) {\n\t\t\t\t\tthis.blur();\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t},\n\t\t\tdelegateType: \"focusout\"\n\t\t},\n\t\tclick: {\n\t\t\t// For checkbox, fire native event so checked state will be right\n\t\t\ttrigger: function() {\n\t\t\t\tif ( this.type === \"checkbox\" && this.click && jQuery.nodeName( this, \"input\" ) ) {\n\t\t\t\t\tthis.click();\n\t\t\t\t\treturn false;\n\t\t\t\t}\n\t\t\t},\n\n\t\t\t// For cross-browser consistency, don't fire native .click() on links\n\t\t\t_default: function( event ) {\n\t\t\t\treturn jQuery.nodeName( event.target, \"a\" );\n\t\t\t}\n\t\t},\n\n\t\tbeforeunload: {\n\t\t\tpostDispatch: function( event ) {\n\n\t\t\t\t// Support: Firefox 20+\n\t\t\t\t// Firefox doesn't alert if the returnValue field is not set.\n\t\t\t\tif ( event.result !== undefined ) {\n\t\t\t\t\tevent.originalEvent.returnValue = event.result;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\tsimulate: function( type, elem, event, bubble ) {\n\t\t// Piggyback on a donor event to simulate a different one.\n\t\t// Fake originalEvent to avoid donor's stopPropagation, but if the\n\t\t// simulated event prevents default then we do the same on the donor.\n\t\tvar e = jQuery.extend(\n\t\t\tnew jQuery.Event(),\n\t\t\tevent,\n\t\t\t{\n\t\t\t\ttype: type,\n\t\t\t\tisSimulated: true,\n\t\t\t\toriginalEvent: {}\n\t\t\t}\n\t\t);\n\t\tif ( bubble ) {\n\t\t\tjQuery.event.trigger( e, null, elem );\n\t\t} else {\n\t\t\tjQuery.event.dispatch.call( elem, e );\n\t\t}\n\t\tif ( e.isDefaultPrevented() ) {\n\t\t\tevent.preventDefault();\n\t\t}\n\t}\n};\n\njQuery.removeEvent = function( elem, type, handle ) {\n\tif ( elem.removeEventListener ) {\n\t\telem.removeEventListener( type, handle, false );\n\t}\n};\n\njQuery.Event = function( src, props ) {\n\t// Allow instantiation without the 'new' keyword\n\tif ( !(this instanceof jQuery.Event) ) {\n\t\treturn new jQuery.Event( src, props );\n\t}\n\n\t// Event object\n\tif ( src && src.type ) {\n\t\tthis.originalEvent = src;\n\t\tthis.type = src.type;\n\n\t\t// Events bubbling up the document may have been marked as prevented\n\t\t// by a handler lower down the tree; reflect the correct value.\n\t\tthis.isDefaultPrevented = ( src.defaultPrevented ||\n\t\t\tsrc.getPreventDefault && src.getPreventDefault() ) ? returnTrue : returnFalse;\n\n\t// Event type\n\t} else {\n\t\tthis.type = src;\n\t}\n\n\t// Put explicitly provided properties onto the event object\n\tif ( props ) {\n\t\tjQuery.extend( this, props );\n\t}\n\n\t// Create a timestamp if incoming event doesn't have one\n\tthis.timeStamp = src && src.timeStamp || jQuery.now();\n\n\t// Mark it as fixed\n\tthis[ jQuery.expando ] = true;\n};\n\n// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding\n// http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html\njQuery.Event.prototype = {\n\tisDefaultPrevented: returnFalse,\n\tisPropagationStopped: returnFalse,\n\tisImmediatePropagationStopped: returnFalse,\n\n\tpreventDefault: function() {\n\t\tvar e = this.originalEvent;\n\n\t\tthis.isDefaultPrevented = returnTrue;\n\n\t\tif ( e && e.preventDefault ) {\n\t\t\te.preventDefault();\n\t\t}\n\t},\n\tstopPropagation: function() {\n\t\tvar e = this.originalEvent;\n\n\t\tthis.isPropagationStopped = returnTrue;\n\n\t\tif ( e && e.stopPropagation ) {\n\t\t\te.stopPropagation();\n\t\t}\n\t},\n\tstopImmediatePropagation: function() {\n\t\tthis.isImmediatePropagationStopped = returnTrue;\n\t\tthis.stopPropagation();\n\t}\n};\n\n// Create mouseenter/leave events using mouseover/out and event-time checks\n// Support: Chrome 15+\njQuery.each({\n\tmouseenter: \"mouseover\",\n\tmouseleave: \"mouseout\"\n}, function( orig, fix ) {\n\tjQuery.event.special[ orig ] = {\n\t\tdelegateType: fix,\n\t\tbindType: fix,\n\n\t\thandle: function( event ) {\n\t\t\tvar ret,\n\t\t\t\ttarget = this,\n\t\t\t\trelated = event.relatedTarget,\n\t\t\t\thandleObj = event.handleObj;\n\n\t\t\t// For mousenter/leave call the handler if related is outside the target.\n\t\t\t// NB: No relatedTarget if the mouse left/entered the browser window\n\t\t\tif ( !related || (related !== target && !jQuery.contains( target, related )) ) {\n\t\t\t\tevent.type = handleObj.origType;\n\t\t\t\tret = handleObj.handler.apply( this, arguments );\n\t\t\t\tevent.type = fix;\n\t\t\t}\n\t\t\treturn ret;\n\t\t}\n\t};\n});\n\n// Create \"bubbling\" focus and blur events\n// Support: Firefox, Chrome, Safari\nif ( !jQuery.support.focusinBubbles ) {\n\tjQuery.each({ focus: \"focusin\", blur: \"focusout\" }, function( orig, fix ) {\n\n\t\t// Attach a single capturing handler while someone wants focusin/focusout\n\t\tvar attaches = 0,\n\t\t\thandler = function( event ) {\n\t\t\t\tjQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );\n\t\t\t};\n\n\t\tjQuery.event.special[ fix ] = {\n\t\t\tsetup: function() {\n\t\t\t\tif ( attaches++ === 0 ) {\n\t\t\t\t\tdocument.addEventListener( orig, handler, true );\n\t\t\t\t}\n\t\t\t},\n\t\t\tteardown: function() {\n\t\t\t\tif ( --attaches === 0 ) {\n\t\t\t\t\tdocument.removeEventListener( orig, handler, true );\n\t\t\t\t}\n\t\t\t}\n\t\t};\n\t});\n}\n\njQuery.fn.extend({\n\n\ton: function( types, selector, data, fn, /*INTERNAL*/ one ) {\n\t\tvar origFn, type;\n\n\t\t// Types can be a map of types/handlers\n\t\tif ( typeof types === \"object\" ) {\n\t\t\t// ( types-Object, selector, data )\n\t\t\tif ( typeof selector !== \"string\" ) {\n\t\t\t\t// ( types-Object, data )\n\t\t\t\tdata = data || selector;\n\t\t\t\tselector = undefined;\n\t\t\t}\n\t\t\tfor ( type in types ) {\n\t\t\t\tthis.on( type, selector, data, types[ type ], one );\n\t\t\t}\n\t\t\treturn this;\n\t\t}\n\n\t\tif ( data == null && fn == null ) {\n\t\t\t// ( types, fn )\n\t\t\tfn = selector;\n\t\t\tdata = selector = undefined;\n\t\t} else if ( fn == null ) {\n\t\t\tif ( typeof selector === \"string\" ) {\n\t\t\t\t// ( types, selector, fn )\n\t\t\t\tfn = data;\n\t\t\t\tdata = undefined;\n\t\t\t} else {\n\t\t\t\t// ( types, data, fn )\n\t\t\t\tfn = data;\n\t\t\t\tdata = selector;\n\t\t\t\tselector = undefined;\n\t\t\t}\n\t\t}\n\t\tif ( fn === false ) {\n\t\t\tfn = returnFalse;\n\t\t} else if ( !fn ) {\n\t\t\treturn this;\n\t\t}\n\n\t\tif ( one === 1 ) {\n\t\t\torigFn = fn;\n\t\t\tfn = function( event ) {\n\t\t\t\t// Can use an empty set, since event contains the info\n\t\t\t\tjQuery().off( event );\n\t\t\t\treturn origFn.apply( this, arguments );\n\t\t\t};\n\t\t\t// Use same guid so caller can remove using origFn\n\t\t\tfn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );\n\t\t}\n\t\treturn this.each( function() {\n\t\t\tjQuery.event.add( this, types, fn, data, selector );\n\t\t});\n\t},\n\tone: function( types, selector, data, fn ) {\n\t\treturn this.on( types, selector, data, fn, 1 );\n\t},\n\toff: function( types, selector, fn ) {\n\t\tvar handleObj, type;\n\t\tif ( types && types.preventDefault && types.handleObj ) {\n\t\t\t// ( event ) dispatched jQuery.Event\n\t\t\thandleObj = types.handleObj;\n\t\t\tjQuery( types.delegateTarget ).off(\n\t\t\t\thandleObj.namespace ? handleObj.origType + \".\" + handleObj.namespace : handleObj.origType,\n\t\t\t\thandleObj.selector,\n\t\t\t\thandleObj.handler\n\t\t\t);\n\t\t\treturn this;\n\t\t}\n\t\tif ( typeof types === \"object\" ) {\n\t\t\t// ( types-object [, selector] )\n\t\t\tfor ( type in types ) {\n\t\t\t\tthis.off( type, selector, types[ type ] );\n\t\t\t}\n\t\t\treturn this;\n\t\t}\n\t\tif ( selector === false || typeof selector === \"function\" ) {\n\t\t\t// ( types [, fn] )\n\t\t\tfn = selector;\n\t\t\tselector = undefined;\n\t\t}\n\t\tif ( fn === false ) {\n\t\t\tfn = returnFalse;\n\t\t}\n\t\treturn this.each(function() {\n\t\t\tjQuery.event.remove( this, types, fn, selector );\n\t\t});\n\t},\n\n\ttrigger: function( type, data ) {\n\t\treturn this.each(function() {\n\t\t\tjQuery.event.trigger( type, data, this );\n\t\t});\n\t},\n\ttriggerHandler: function( type, data ) {\n\t\tvar elem = this[0];\n\t\tif ( elem ) {\n\t\t\treturn jQuery.event.trigger( type, data, elem, true );\n\t\t}\n\t}\n});\nvar isSimple = /^.[^:#\\[\\.,]*$/,\n\trparentsprev = /^(?:parents|prev(?:Until|All))/,\n\trneedsContext = jQuery.expr.match.needsContext,\n\t// methods guaranteed to produce a unique set when starting from a unique set\n\tguaranteedUnique = {\n\t\tchildren: true,\n\t\tcontents: true,\n\t\tnext: true,\n\t\tprev: true\n\t};\n\njQuery.fn.extend({\n\tfind: function( selector ) {\n\t\tvar i,\n\t\t\tret = [],\n\t\t\tself = this,\n\t\t\tlen = self.length;\n\n\t\tif ( typeof selector !== \"string\" ) {\n\t\t\treturn this.pushStack( jQuery( selector ).filter(function() {\n\t\t\t\tfor ( i = 0; i < len; i++ ) {\n\t\t\t\t\tif ( jQuery.contains( self[ i ], this ) ) {\n\t\t\t\t\t\treturn true;\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}) );\n\t\t}\n\n\t\tfor ( i = 0; i < len; i++ ) {\n\t\t\tjQuery.find( selector, self[ i ], ret );\n\t\t}\n\n\t\t// Needed because $( selector, context ) becomes $( context ).find( selector )\n\t\tret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );\n\t\tret.selector = this.selector ? this.selector + \" \" + selector : selector;\n\t\treturn ret;\n\t},\n\n\thas: function( target ) {\n\t\tvar targets = jQuery( target, this ),\n\t\t\tl = targets.length;\n\n\t\treturn this.filter(function() {\n\t\t\tvar i = 0;\n\t\t\tfor ( ; i < l; i++ ) {\n\t\t\t\tif ( jQuery.contains( this, targets[i] ) ) {\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t});\n\t},\n\n\tnot: function( selector ) {\n\t\treturn this.pushStack( winnow(this, selector || [], true) );\n\t},\n\n\tfilter: function( selector ) {\n\t\treturn this.pushStack( winnow(this, selector || [], false) );\n\t},\n\n\tis: function( selector ) {\n\t\treturn !!winnow(\n\t\t\tthis,\n\n\t\t\t// If this is a positional/relative selector, check membership in the returned set\n\t\t\t// so $(\"p:first\").is(\"p:last\") won't return true for a doc with two \"p\".\n\t\t\ttypeof selector === \"string\" && rneedsContext.test( selector ) ?\n\t\t\t\tjQuery( selector ) :\n\t\t\t\tselector || [],\n\t\t\tfalse\n\t\t).length;\n\t},\n\n\tclosest: function( selectors, context ) {\n\t\tvar cur,\n\t\t\ti = 0,\n\t\t\tl = this.length,\n\t\t\tmatched = [],\n\t\t\tpos = ( rneedsContext.test( selectors ) || typeof selectors !== \"string\" ) ?\n\t\t\t\tjQuery( selectors, context || this.context ) :\n\t\t\t\t0;\n\n\t\tfor ( ; i < l; i++ ) {\n\t\t\tfor ( cur = this[i]; cur && cur !== context; cur = cur.parentNode ) {\n\t\t\t\t// Always skip document fragments\n\t\t\t\tif ( cur.nodeType < 11 && (pos ?\n\t\t\t\t\tpos.index(cur) > -1 :\n\n\t\t\t\t\t// Don't pass non-elements to Sizzle\n\t\t\t\t\tcur.nodeType === 1 &&\n\t\t\t\t\t\tjQuery.find.matchesSelector(cur, selectors)) ) {\n\n\t\t\t\t\tcur = matched.push( cur );\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn this.pushStack( matched.length > 1 ? jQuery.unique( matched ) : matched );\n\t},\n\n\t// Determine the position of an element within\n\t// the matched set of elements\n\tindex: function( elem ) {\n\n\t\t// No argument, return index in parent\n\t\tif ( !elem ) {\n\t\t\treturn ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;\n\t\t}\n\n\t\t// index in selector\n\t\tif ( typeof elem === \"string\" ) {\n\t\t\treturn core_indexOf.call( jQuery( elem ), this[ 0 ] );\n\t\t}\n\n\t\t// Locate the position of the desired element\n\t\treturn core_indexOf.call( this,\n\n\t\t\t// If it receives a jQuery object, the first element is used\n\t\t\telem.jquery ? elem[ 0 ] : elem\n\t\t);\n\t},\n\n\tadd: function( selector, context ) {\n\t\tvar set = typeof selector === \"string\" ?\n\t\t\t\tjQuery( selector, context ) :\n\t\t\t\tjQuery.makeArray( selector && selector.nodeType ? [ selector ] : selector ),\n\t\t\tall = jQuery.merge( this.get(), set );\n\n\t\treturn this.pushStack( jQuery.unique(all) );\n\t},\n\n\taddBack: function( selector ) {\n\t\treturn this.add( selector == null ?\n\t\t\tthis.prevObject : this.prevObject.filter(selector)\n\t\t);\n\t}\n});\n\nfunction sibling( cur, dir ) {\n\twhile ( (cur = cur[dir]) && cur.nodeType !== 1 ) {}\n\n\treturn cur;\n}\n\njQuery.each({\n\tparent: function( elem ) {\n\t\tvar parent = elem.parentNode;\n\t\treturn parent && parent.nodeType !== 11 ? parent : null;\n\t},\n\tparents: function( elem ) {\n\t\treturn jQuery.dir( elem, \"parentNode\" );\n\t},\n\tparentsUntil: function( elem, i, until ) {\n\t\treturn jQuery.dir( elem, \"parentNode\", until );\n\t},\n\tnext: function( elem ) {\n\t\treturn sibling( elem, \"nextSibling\" );\n\t},\n\tprev: function( elem ) {\n\t\treturn sibling( elem, \"previousSibling\" );\n\t},\n\tnextAll: function( elem ) {\n\t\treturn jQuery.dir( elem, \"nextSibling\" );\n\t},\n\tprevAll: function( elem ) {\n\t\treturn jQuery.dir( elem, \"previousSibling\" );\n\t},\n\tnextUntil: function( elem, i, until ) {\n\t\treturn jQuery.dir( elem, \"nextSibling\", until );\n\t},\n\tprevUntil: function( elem, i, until ) {\n\t\treturn jQuery.dir( elem, \"previousSibling\", until );\n\t},\n\tsiblings: function( elem ) {\n\t\treturn jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );\n\t},\n\tchildren: function( elem ) {\n\t\treturn jQuery.sibling( elem.firstChild );\n\t},\n\tcontents: function( elem ) {\n\t\treturn elem.contentDocument || jQuery.merge( [], elem.childNodes );\n\t}\n}, function( name, fn ) {\n\tjQuery.fn[ name ] = function( until, selector ) {\n\t\tvar matched = jQuery.map( this, fn, until );\n\n\t\tif ( name.slice( -5 ) !== \"Until\" ) {\n\t\t\tselector = until;\n\t\t}\n\n\t\tif ( selector && typeof selector === \"string\" ) {\n\t\t\tmatched = jQuery.filter( selector, matched );\n\t\t}\n\n\t\tif ( this.length > 1 ) {\n\t\t\t// Remove duplicates\n\t\t\tif ( !guaranteedUnique[ name ] ) {\n\t\t\t\tjQuery.unique( matched );\n\t\t\t}\n\n\t\t\t// Reverse order for parents* and prev-derivatives\n\t\t\tif ( rparentsprev.test( name ) ) {\n\t\t\t\tmatched.reverse();\n\t\t\t}\n\t\t}\n\n\t\treturn this.pushStack( matched );\n\t};\n});\n\njQuery.extend({\n\tfilter: function( expr, elems, not ) {\n\t\tvar elem = elems[ 0 ];\n\n\t\tif ( not ) {\n\t\t\texpr = \":not(\" + expr + \")\";\n\t\t}\n\n\t\treturn elems.length === 1 && elem.nodeType === 1 ?\n\t\t\tjQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :\n\t\t\tjQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {\n\t\t\t\treturn elem.nodeType === 1;\n\t\t\t}));\n\t},\n\n\tdir: function( elem, dir, until ) {\n\t\tvar matched = [],\n\t\t\ttruncate = until !== undefined;\n\n\t\twhile ( (elem = elem[ dir ]) && elem.nodeType !== 9 ) {\n\t\t\tif ( elem.nodeType === 1 ) {\n\t\t\t\tif ( truncate && jQuery( elem ).is( until ) ) {\n\t\t\t\t\tbreak;\n\t\t\t\t}\n\t\t\t\tmatched.push( elem );\n\t\t\t}\n\t\t}\n\t\treturn matched;\n\t},\n\n\tsibling: function( n, elem ) {\n\t\tvar matched = [];\n\n\t\tfor ( ; n; n = n.nextSibling ) {\n\t\t\tif ( n.nodeType === 1 && n !== elem ) {\n\t\t\t\tmatched.push( n );\n\t\t\t}\n\t\t}\n\n\t\treturn matched;\n\t}\n});\n\n// Implement the identical functionality for filter and not\nfunction winnow( elements, qualifier, not ) {\n\tif ( jQuery.isFunction( qualifier ) ) {\n\t\treturn jQuery.grep( elements, function( elem, i ) {\n\t\t\t/* jshint -W018 */\n\t\t\treturn !!qualifier.call( elem, i, elem ) !== not;\n\t\t});\n\n\t}\n\n\tif ( qualifier.nodeType ) {\n\t\treturn jQuery.grep( elements, function( elem ) {\n\t\t\treturn ( elem === qualifier ) !== not;\n\t\t});\n\n\t}\n\n\tif ( typeof qualifier === \"string\" ) {\n\t\tif ( isSimple.test( qualifier ) ) {\n\t\t\treturn jQuery.filter( qualifier, elements, not );\n\t\t}\n\n\t\tqualifier = jQuery.filter( qualifier, elements );\n\t}\n\n\treturn jQuery.grep( elements, function( elem ) {\n\t\treturn ( core_indexOf.call( qualifier, elem ) >= 0 ) !== not;\n\t});\n}\nvar rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\\w:]+)[^>]*)\\/>/gi,\n\trtagName = /<([\\w:]+)/,\n\trhtml = /<|&#?\\w+;/,\n\trnoInnerhtml = /<(?:script|style|link)/i,\n\tmanipulation_rcheckableType = /^(?:checkbox|radio)$/i,\n\t// checked=\"checked\" or checked\n\trchecked = /checked\\s*(?:[^=]|=\\s*.checked.)/i,\n\trscriptType = /^$|\\/(?:java|ecma)script/i,\n\trscriptTypeMasked = /^true\\/(.*)/,\n\trcleanScript = /^\\s*\\s*$/g,\n\n\t// We have to close these tags to support XHTML (#13200)\n\twrapMap = {\n\n\t\t// Support: IE 9\n\t\toption: [ 1, \"\" ],\n\n\t\tthead: [ 1, \"\", \"
\" ],\n\t\tcol: [ 2, \"\", \"
\" ],\n\t\ttr: [ 2, \"\", \"
\" ],\n\t\ttd: [ 3, \"\", \"
\" ],\n\n\t\t_default: [ 0, \"\", \"\" ]\n\t};\n\n// Support: IE 9\nwrapMap.optgroup = wrapMap.option;\n\nwrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;\nwrapMap.th = wrapMap.td;\n\njQuery.fn.extend({\n\ttext: function( value ) {\n\t\treturn jQuery.access( this, function( value ) {\n\t\t\treturn value === undefined ?\n\t\t\t\tjQuery.text( this ) :\n\t\t\t\tthis.empty().append( ( this[ 0 ] && this[ 0 ].ownerDocument || document ).createTextNode( value ) );\n\t\t}, null, value, arguments.length );\n\t},\n\n\tappend: function() {\n\t\treturn this.domManip( arguments, function( elem ) {\n\t\t\tif ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {\n\t\t\t\tvar target = manipulationTarget( this, elem );\n\t\t\t\ttarget.appendChild( elem );\n\t\t\t}\n\t\t});\n\t},\n\n\tprepend: function() {\n\t\treturn this.domManip( arguments, function( elem ) {\n\t\t\tif ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {\n\t\t\t\tvar target = manipulationTarget( this, elem );\n\t\t\t\ttarget.insertBefore( elem, target.firstChild );\n\t\t\t}\n\t\t});\n\t},\n\n\tbefore: function() {\n\t\treturn this.domManip( arguments, function( elem ) {\n\t\t\tif ( this.parentNode ) {\n\t\t\t\tthis.parentNode.insertBefore( elem, this );\n\t\t\t}\n\t\t});\n\t},\n\n\tafter: function() {\n\t\treturn this.domManip( arguments, function( elem ) {\n\t\t\tif ( this.parentNode ) {\n\t\t\t\tthis.parentNode.insertBefore( elem, this.nextSibling );\n\t\t\t}\n\t\t});\n\t},\n\n\t// keepData is for internal use only--do not document\n\tremove: function( selector, keepData ) {\n\t\tvar elem,\n\t\t\telems = selector ? jQuery.filter( selector, this ) : this,\n\t\t\ti = 0;\n\n\t\tfor ( ; (elem = elems[i]) != null; i++ ) {\n\t\t\tif ( !keepData && elem.nodeType === 1 ) {\n\t\t\t\tjQuery.cleanData( getAll( elem ) );\n\t\t\t}\n\n\t\t\tif ( elem.parentNode ) {\n\t\t\t\tif ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {\n\t\t\t\t\tsetGlobalEval( getAll( elem, \"script\" ) );\n\t\t\t\t}\n\t\t\t\telem.parentNode.removeChild( elem );\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t},\n\n\tempty: function() {\n\t\tvar elem,\n\t\t\ti = 0;\n\n\t\tfor ( ; (elem = this[i]) != null; i++ ) {\n\t\t\tif ( elem.nodeType === 1 ) {\n\n\t\t\t\t// Prevent memory leaks\n\t\t\t\tjQuery.cleanData( getAll( elem, false ) );\n\n\t\t\t\t// Remove any remaining nodes\n\t\t\t\telem.textContent = \"\";\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t},\n\n\tclone: function( dataAndEvents, deepDataAndEvents ) {\n\t\tdataAndEvents = dataAndEvents == null ? false : dataAndEvents;\n\t\tdeepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;\n\n\t\treturn this.map( function () {\n\t\t\treturn jQuery.clone( this, dataAndEvents, deepDataAndEvents );\n\t\t});\n\t},\n\n\thtml: function( value ) {\n\t\treturn jQuery.access( this, function( value ) {\n\t\t\tvar elem = this[ 0 ] || {},\n\t\t\t\ti = 0,\n\t\t\t\tl = this.length;\n\n\t\t\tif ( value === undefined && elem.nodeType === 1 ) {\n\t\t\t\treturn elem.innerHTML;\n\t\t\t}\n\n\t\t\t// See if we can take a shortcut and just use innerHTML\n\t\t\tif ( typeof value === \"string\" && !rnoInnerhtml.test( value ) &&\n\t\t\t\t!wrapMap[ ( rtagName.exec( value ) || [ \"\", \"\" ] )[ 1 ].toLowerCase() ] ) {\n\n\t\t\t\tvalue = value.replace( rxhtmlTag, \"<$1>\" );\n\n\t\t\t\ttry {\n\t\t\t\t\tfor ( ; i < l; i++ ) {\n\t\t\t\t\t\telem = this[ i ] || {};\n\n\t\t\t\t\t\t// Remove element nodes and prevent memory leaks\n\t\t\t\t\t\tif ( elem.nodeType === 1 ) {\n\t\t\t\t\t\t\tjQuery.cleanData( getAll( elem, false ) );\n\t\t\t\t\t\t\telem.innerHTML = value;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\telem = 0;\n\n\t\t\t\t// If using innerHTML throws an exception, use the fallback method\n\t\t\t\t} catch( e ) {}\n\t\t\t}\n\n\t\t\tif ( elem ) {\n\t\t\t\tthis.empty().append( value );\n\t\t\t}\n\t\t}, null, value, arguments.length );\n\t},\n\n\treplaceWith: function() {\n\t\tvar\n\t\t\t// Snapshot the DOM in case .domManip sweeps something relevant into its fragment\n\t\t\targs = jQuery.map( this, function( elem ) {\n\t\t\t\treturn [ elem.nextSibling, elem.parentNode ];\n\t\t\t}),\n\t\t\ti = 0;\n\n\t\t// Make the changes, replacing each context element with the new content\n\t\tthis.domManip( arguments, function( elem ) {\n\t\t\tvar next = args[ i++ ],\n\t\t\t\tparent = args[ i++ ];\n\n\t\t\tif ( parent ) {\n\t\t\t\t// Don't use the snapshot next if it has moved (#13810)\n\t\t\t\tif ( next && next.parentNode !== parent ) {\n\t\t\t\t\tnext = this.nextSibling;\n\t\t\t\t}\n\t\t\t\tjQuery( this ).remove();\n\t\t\t\tparent.insertBefore( elem, next );\n\t\t\t}\n\t\t// Allow new content to include elements from the context set\n\t\t}, true );\n\n\t\t// Force removal if there was no new content (e.g., from empty arguments)\n\t\treturn i ? this : this.remove();\n\t},\n\n\tdetach: function( selector ) {\n\t\treturn this.remove( selector, true );\n\t},\n\n\tdomManip: function( args, callback, allowIntersection ) {\n\n\t\t// Flatten any nested arrays\n\t\targs = core_concat.apply( [], args );\n\n\t\tvar fragment, first, scripts, hasScripts, node, doc,\n\t\t\ti = 0,\n\t\t\tl = this.length,\n\t\t\tset = this,\n\t\t\tiNoClone = l - 1,\n\t\t\tvalue = args[ 0 ],\n\t\t\tisFunction = jQuery.isFunction( value );\n\n\t\t// We can't cloneNode fragments that contain checked, in WebKit\n\t\tif ( isFunction || !( l <= 1 || typeof value !== \"string\" || jQuery.support.checkClone || !rchecked.test( value ) ) ) {\n\t\t\treturn this.each(function( index ) {\n\t\t\t\tvar self = set.eq( index );\n\t\t\t\tif ( isFunction ) {\n\t\t\t\t\targs[ 0 ] = value.call( this, index, self.html() );\n\t\t\t\t}\n\t\t\t\tself.domManip( args, callback, allowIntersection );\n\t\t\t});\n\t\t}\n\n\t\tif ( l ) {\n\t\t\tfragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, !allowIntersection && this );\n\t\t\tfirst = fragment.firstChild;\n\n\t\t\tif ( fragment.childNodes.length === 1 ) {\n\t\t\t\tfragment = first;\n\t\t\t}\n\n\t\t\tif ( first ) {\n\t\t\t\tscripts = jQuery.map( getAll( fragment, \"script\" ), disableScript );\n\t\t\t\thasScripts = scripts.length;\n\n\t\t\t\t// Use the original fragment for the last item instead of the first because it can end up\n\t\t\t\t// being emptied incorrectly in certain situations (#8070).\n\t\t\t\tfor ( ; i < l; i++ ) {\n\t\t\t\t\tnode = fragment;\n\n\t\t\t\t\tif ( i !== iNoClone ) {\n\t\t\t\t\t\tnode = jQuery.clone( node, true, true );\n\n\t\t\t\t\t\t// Keep references to cloned scripts for later restoration\n\t\t\t\t\t\tif ( hasScripts ) {\n\t\t\t\t\t\t\t// Support: QtWebKit\n\t\t\t\t\t\t\t// jQuery.merge because core_push.apply(_, arraylike) throws\n\t\t\t\t\t\t\tjQuery.merge( scripts, getAll( node, \"script\" ) );\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\n\t\t\t\t\tcallback.call( this[ i ], node, i );\n\t\t\t\t}\n\n\t\t\t\tif ( hasScripts ) {\n\t\t\t\t\tdoc = scripts[ scripts.length - 1 ].ownerDocument;\n\n\t\t\t\t\t// Reenable scripts\n\t\t\t\t\tjQuery.map( scripts, restoreScript );\n\n\t\t\t\t\t// Evaluate executable scripts on first document insertion\n\t\t\t\t\tfor ( i = 0; i < hasScripts; i++ ) {\n\t\t\t\t\t\tnode = scripts[ i ];\n\t\t\t\t\t\tif ( rscriptType.test( node.type || \"\" ) &&\n\t\t\t\t\t\t\t!data_priv.access( node, \"globalEval\" ) && jQuery.contains( doc, node ) ) {\n\n\t\t\t\t\t\t\tif ( node.src ) {\n\t\t\t\t\t\t\t\t// Hope ajax is available...\n\t\t\t\t\t\t\t\tjQuery._evalUrl( node.src );\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\tjQuery.globalEval( node.textContent.replace( rcleanScript, \"\" ) );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn this;\n\t}\n});\n\njQuery.each({\n\tappendTo: \"append\",\n\tprependTo: \"prepend\",\n\tinsertBefore: \"before\",\n\tinsertAfter: \"after\",\n\treplaceAll: \"replaceWith\"\n}, function( name, original ) {\n\tjQuery.fn[ name ] = function( selector ) {\n\t\tvar elems,\n\t\t\tret = [],\n\t\t\tinsert = jQuery( selector ),\n\t\t\tlast = insert.length - 1,\n\t\t\ti = 0;\n\n\t\tfor ( ; i <= last; i++ ) {\n\t\t\telems = i === last ? this : this.clone( true );\n\t\t\tjQuery( insert[ i ] )[ original ]( elems );\n\n\t\t\t// Support: QtWebKit\n\t\t\t// .get() because core_push.apply(_, arraylike) throws\n\t\t\tcore_push.apply( ret, elems.get() );\n\t\t}\n\n\t\treturn this.pushStack( ret );\n\t};\n});\n\njQuery.extend({\n\tclone: function( elem, dataAndEvents, deepDataAndEvents ) {\n\t\tvar i, l, srcElements, destElements,\n\t\t\tclone = elem.cloneNode( true ),\n\t\t\tinPage = jQuery.contains( elem.ownerDocument, elem );\n\n\t\t// Support: IE >= 9\n\t\t// Fix Cloning issues\n\t\tif ( !jQuery.support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && !jQuery.isXMLDoc( elem ) ) {\n\n\t\t\t// We eschew Sizzle here for performance reasons: http://jsperf.com/getall-vs-sizzle/2\n\t\t\tdestElements = getAll( clone );\n\t\t\tsrcElements = getAll( elem );\n\n\t\t\tfor ( i = 0, l = srcElements.length; i < l; i++ ) {\n\t\t\t\tfixInput( srcElements[ i ], destElements[ i ] );\n\t\t\t}\n\t\t}\n\n\t\t// Copy the events from the original to the clone\n\t\tif ( dataAndEvents ) {\n\t\t\tif ( deepDataAndEvents ) {\n\t\t\t\tsrcElements = srcElements || getAll( elem );\n\t\t\t\tdestElements = destElements || getAll( clone );\n\n\t\t\t\tfor ( i = 0, l = srcElements.length; i < l; i++ ) {\n\t\t\t\t\tcloneCopyEvent( srcElements[ i ], destElements[ i ] );\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tcloneCopyEvent( elem, clone );\n\t\t\t}\n\t\t}\n\n\t\t// Preserve script evaluation history\n\t\tdestElements = getAll( clone, \"script\" );\n\t\tif ( destElements.length > 0 ) {\n\t\t\tsetGlobalEval( destElements, !inPage && getAll( elem, \"script\" ) );\n\t\t}\n\n\t\t// Return the cloned set\n\t\treturn clone;\n\t},\n\n\tbuildFragment: function( elems, context, scripts, selection ) {\n\t\tvar elem, tmp, tag, wrap, contains, j,\n\t\t\ti = 0,\n\t\t\tl = elems.length,\n\t\t\tfragment = context.createDocumentFragment(),\n\t\t\tnodes = [];\n\n\t\tfor ( ; i < l; i++ ) {\n\t\t\telem = elems[ i ];\n\n\t\t\tif ( elem || elem === 0 ) {\n\n\t\t\t\t// Add nodes directly\n\t\t\t\tif ( jQuery.type( elem ) === \"object\" ) {\n\t\t\t\t\t// Support: QtWebKit\n\t\t\t\t\t// jQuery.merge because core_push.apply(_, arraylike) throws\n\t\t\t\t\tjQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );\n\n\t\t\t\t// Convert non-html into a text node\n\t\t\t\t} else if ( !rhtml.test( elem ) ) {\n\t\t\t\t\tnodes.push( context.createTextNode( elem ) );\n\n\t\t\t\t// Convert html into DOM nodes\n\t\t\t\t} else {\n\t\t\t\t\ttmp = tmp || fragment.appendChild( context.createElement(\"div\") );\n\n\t\t\t\t\t// Deserialize a standard representation\n\t\t\t\t\ttag = ( rtagName.exec( elem ) || [\"\", \"\"] )[ 1 ].toLowerCase();\n\t\t\t\t\twrap = wrapMap[ tag ] || wrapMap._default;\n\t\t\t\t\ttmp.innerHTML = wrap[ 1 ] + elem.replace( rxhtmlTag, \"<$1>\" ) + wrap[ 2 ];\n\n\t\t\t\t\t// Descend through wrappers to the right content\n\t\t\t\t\tj = wrap[ 0 ];\n\t\t\t\t\twhile ( j-- ) {\n\t\t\t\t\t\ttmp = tmp.lastChild;\n\t\t\t\t\t}\n\n\t\t\t\t\t// Support: QtWebKit\n\t\t\t\t\t// jQuery.merge because core_push.apply(_, arraylike) throws\n\t\t\t\t\tjQuery.merge( nodes, tmp.childNodes );\n\n\t\t\t\t\t// Remember the top-level container\n\t\t\t\t\ttmp = fragment.firstChild;\n\n\t\t\t\t\t// Fixes #12346\n\t\t\t\t\t// Support: Webkit, IE\n\t\t\t\t\ttmp.textContent = \"\";\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\t// Remove wrapper from fragment\n\t\tfragment.textContent = \"\";\n\n\t\ti = 0;\n\t\twhile ( (elem = nodes[ i++ ]) ) {\n\n\t\t\t// #4087 - If origin and destination elements are the same, and this is\n\t\t\t// that element, do not do anything\n\t\t\tif ( selection && jQuery.inArray( elem, selection ) !== -1 ) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\tcontains = jQuery.contains( elem.ownerDocument, elem );\n\n\t\t\t// Append to fragment\n\t\t\ttmp = getAll( fragment.appendChild( elem ), \"script\" );\n\n\t\t\t// Preserve script evaluation history\n\t\t\tif ( contains ) {\n\t\t\t\tsetGlobalEval( tmp );\n\t\t\t}\n\n\t\t\t// Capture executables\n\t\t\tif ( scripts ) {\n\t\t\t\tj = 0;\n\t\t\t\twhile ( (elem = tmp[ j++ ]) ) {\n\t\t\t\t\tif ( rscriptType.test( elem.type || \"\" ) ) {\n\t\t\t\t\t\tscripts.push( elem );\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn fragment;\n\t},\n\n\tcleanData: function( elems ) {\n\t\tvar data, elem, events, type, key, j,\n\t\t\tspecial = jQuery.event.special,\n\t\t\ti = 0;\n\n\t\tfor ( ; (elem = elems[ i ]) !== undefined; i++ ) {\n\t\t\tif ( Data.accepts( elem ) ) {\n\t\t\t\tkey = elem[ data_priv.expando ];\n\n\t\t\t\tif ( key && (data = data_priv.cache[ key ]) ) {\n\t\t\t\t\tevents = Object.keys( data.events || {} );\n\t\t\t\t\tif ( events.length ) {\n\t\t\t\t\t\tfor ( j = 0; (type = events[j]) !== undefined; j++ ) {\n\t\t\t\t\t\t\tif ( special[ type ] ) {\n\t\t\t\t\t\t\t\tjQuery.event.remove( elem, type );\n\n\t\t\t\t\t\t\t// This is a shortcut to avoid jQuery.event.remove's overhead\n\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\tjQuery.removeEvent( elem, type, data.handle );\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tif ( data_priv.cache[ key ] ) {\n\t\t\t\t\t\t// Discard any remaining `private` data\n\t\t\t\t\t\tdelete data_priv.cache[ key ];\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t\t// Discard any remaining `user` data\n\t\t\tdelete data_user.cache[ elem[ data_user.expando ] ];\n\t\t}\n\t},\n\n\t_evalUrl: function( url ) {\n\t\treturn jQuery.ajax({\n\t\t\turl: url,\n\t\t\ttype: \"GET\",\n\t\t\tdataType: \"script\",\n\t\t\tasync: false,\n\t\t\tglobal: false,\n\t\t\t\"throws\": true\n\t\t});\n\t}\n});\n\n// Support: 1.x compatibility\n// Manipulating tables requires a tbody\nfunction manipulationTarget( elem, content ) {\n\treturn jQuery.nodeName( elem, \"table\" ) &&\n\t\tjQuery.nodeName( content.nodeType === 1 ? content : content.firstChild, \"tr\" ) ?\n\n\t\telem.getElementsByTagName(\"tbody\")[0] ||\n\t\t\telem.appendChild( elem.ownerDocument.createElement(\"tbody\") ) :\n\t\telem;\n}\n\n// Replace/restore the type attribute of script elements for safe DOM manipulation\nfunction disableScript( elem ) {\n\telem.type = (elem.getAttribute(\"type\") !== null) + \"/\" + elem.type;\n\treturn elem;\n}\nfunction restoreScript( elem ) {\n\tvar match = rscriptTypeMasked.exec( elem.type );\n\n\tif ( match ) {\n\t\telem.type = match[ 1 ];\n\t} else {\n\t\telem.removeAttribute(\"type\");\n\t}\n\n\treturn elem;\n}\n\n// Mark scripts as having already been evaluated\nfunction setGlobalEval( elems, refElements ) {\n\tvar l = elems.length,\n\t\ti = 0;\n\n\tfor ( ; i < l; i++ ) {\n\t\tdata_priv.set(\n\t\t\telems[ i ], \"globalEval\", !refElements || data_priv.get( refElements[ i ], \"globalEval\" )\n\t\t);\n\t}\n}\n\nfunction cloneCopyEvent( src, dest ) {\n\tvar i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;\n\n\tif ( dest.nodeType !== 1 ) {\n\t\treturn;\n\t}\n\n\t// 1. Copy private data: events, handlers, etc.\n\tif ( data_priv.hasData( src ) ) {\n\t\tpdataOld = data_priv.access( src );\n\t\tpdataCur = data_priv.set( dest, pdataOld );\n\t\tevents = pdataOld.events;\n\n\t\tif ( events ) {\n\t\t\tdelete pdataCur.handle;\n\t\t\tpdataCur.events = {};\n\n\t\t\tfor ( type in events ) {\n\t\t\t\tfor ( i = 0, l = events[ type ].length; i < l; i++ ) {\n\t\t\t\t\tjQuery.event.add( dest, type, events[ type ][ i ] );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// 2. Copy user data\n\tif ( data_user.hasData( src ) ) {\n\t\tudataOld = data_user.access( src );\n\t\tudataCur = jQuery.extend( {}, udataOld );\n\n\t\tdata_user.set( dest, udataCur );\n\t}\n}\n\n\nfunction getAll( context, tag ) {\n\tvar ret = context.getElementsByTagName ? context.getElementsByTagName( tag || \"*\" ) :\n\t\t\tcontext.querySelectorAll ? context.querySelectorAll( tag || \"*\" ) :\n\t\t\t[];\n\n\treturn tag === undefined || tag && jQuery.nodeName( context, tag ) ?\n\t\tjQuery.merge( [ context ], ret ) :\n\t\tret;\n}\n\n// Support: IE >= 9\nfunction fixInput( src, dest ) {\n\tvar nodeName = dest.nodeName.toLowerCase();\n\n\t// Fails to persist the checked state of a cloned checkbox or radio button.\n\tif ( nodeName === \"input\" && manipulation_rcheckableType.test( src.type ) ) {\n\t\tdest.checked = src.checked;\n\n\t// Fails to return the selected option to the default selected state when cloning options\n\t} else if ( nodeName === \"input\" || nodeName === \"textarea\" ) {\n\t\tdest.defaultValue = src.defaultValue;\n\t}\n}\njQuery.fn.extend({\n\twrapAll: function( html ) {\n\t\tvar wrap;\n\n\t\tif ( jQuery.isFunction( html ) ) {\n\t\t\treturn this.each(function( i ) {\n\t\t\t\tjQuery( this ).wrapAll( html.call(this, i) );\n\t\t\t});\n\t\t}\n\n\t\tif ( this[ 0 ] ) {\n\n\t\t\t// The elements to wrap the target around\n\t\t\twrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );\n\n\t\t\tif ( this[ 0 ].parentNode ) {\n\t\t\t\twrap.insertBefore( this[ 0 ] );\n\t\t\t}\n\n\t\t\twrap.map(function() {\n\t\t\t\tvar elem = this;\n\n\t\t\t\twhile ( elem.firstElementChild ) {\n\t\t\t\t\telem = elem.firstElementChild;\n\t\t\t\t}\n\n\t\t\t\treturn elem;\n\t\t\t}).append( this );\n\t\t}\n\n\t\treturn this;\n\t},\n\n\twrapInner: function( html ) {\n\t\tif ( jQuery.isFunction( html ) ) {\n\t\t\treturn this.each(function( i ) {\n\t\t\t\tjQuery( this ).wrapInner( html.call(this, i) );\n\t\t\t});\n\t\t}\n\n\t\treturn this.each(function() {\n\t\t\tvar self = jQuery( this ),\n\t\t\t\tcontents = self.contents();\n\n\t\t\tif ( contents.length ) {\n\t\t\t\tcontents.wrapAll( html );\n\n\t\t\t} else {\n\t\t\t\tself.append( html );\n\t\t\t}\n\t\t});\n\t},\n\n\twrap: function( html ) {\n\t\tvar isFunction = jQuery.isFunction( html );\n\n\t\treturn this.each(function( i ) {\n\t\t\tjQuery( this ).wrapAll( isFunction ? html.call(this, i) : html );\n\t\t});\n\t},\n\n\tunwrap: function() {\n\t\treturn this.parent().each(function() {\n\t\t\tif ( !jQuery.nodeName( this, \"body\" ) ) {\n\t\t\t\tjQuery( this ).replaceWith( this.childNodes );\n\t\t\t}\n\t\t}).end();\n\t}\n});\nvar curCSS, iframe,\n\t// swappable if display is none or starts with table except \"table\", \"table-cell\", or \"table-caption\"\n\t// see here for display values: https://developer.mozilla.org/en-US/docs/CSS/display\n\trdisplayswap = /^(none|table(?!-c[ea]).+)/,\n\trmargin = /^margin/,\n\trnumsplit = new RegExp( \"^(\" + core_pnum + \")(.*)$\", \"i\" ),\n\trnumnonpx = new RegExp( \"^(\" + core_pnum + \")(?!px)[a-z%]+$\", \"i\" ),\n\trrelNum = new RegExp( \"^([+-])=(\" + core_pnum + \")\", \"i\" ),\n\telemdisplay = { BODY: \"block\" },\n\n\tcssShow = { position: \"absolute\", visibility: \"hidden\", display: \"block\" },\n\tcssNormalTransform = {\n\t\tletterSpacing: 0,\n\t\tfontWeight: 400\n\t},\n\n\tcssExpand = [ \"Top\", \"Right\", \"Bottom\", \"Left\" ],\n\tcssPrefixes = [ \"Webkit\", \"O\", \"Moz\", \"ms\" ];\n\n// return a css property mapped to a potentially vendor prefixed property\nfunction vendorPropName( style, name ) {\n\n\t// shortcut for names that are not vendor prefixed\n\tif ( name in style ) {\n\t\treturn name;\n\t}\n\n\t// check for vendor prefixed names\n\tvar capName = name.charAt(0).toUpperCase() + name.slice(1),\n\t\torigName = name,\n\t\ti = cssPrefixes.length;\n\n\twhile ( i-- ) {\n\t\tname = cssPrefixes[ i ] + capName;\n\t\tif ( name in style ) {\n\t\t\treturn name;\n\t\t}\n\t}\n\n\treturn origName;\n}\n\nfunction isHidden( elem, el ) {\n\t// isHidden might be called from jQuery#filter function;\n\t// in that case, element will be second argument\n\telem = el || elem;\n\treturn jQuery.css( elem, \"display\" ) === \"none\" || !jQuery.contains( elem.ownerDocument, elem );\n}\n\n// NOTE: we've included the \"window\" in window.getComputedStyle\n// because jsdom on node.js will break without it.\nfunction getStyles( elem ) {\n\treturn window.getComputedStyle( elem, null );\n}\n\nfunction showHide( elements, show ) {\n\tvar display, elem, hidden,\n\t\tvalues = [],\n\t\tindex = 0,\n\t\tlength = elements.length;\n\n\tfor ( ; index < length; index++ ) {\n\t\telem = elements[ index ];\n\t\tif ( !elem.style ) {\n\t\t\tcontinue;\n\t\t}\n\n\t\tvalues[ index ] = data_priv.get( elem, \"olddisplay\" );\n\t\tdisplay = elem.style.display;\n\t\tif ( show ) {\n\t\t\t// Reset the inline display of this element to learn if it is\n\t\t\t// being hidden by cascaded rules or not\n\t\t\tif ( !values[ index ] && display === \"none\" ) {\n\t\t\t\telem.style.display = \"\";\n\t\t\t}\n\n\t\t\t// Set elements which have been overridden with display: none\n\t\t\t// in a stylesheet to whatever the default browser style is\n\t\t\t// for such an element\n\t\t\tif ( elem.style.display === \"\" && isHidden( elem ) ) {\n\t\t\t\tvalues[ index ] = data_priv.access( elem, \"olddisplay\", css_defaultDisplay(elem.nodeName) );\n\t\t\t}\n\t\t} else {\n\n\t\t\tif ( !values[ index ] ) {\n\t\t\t\thidden = isHidden( elem );\n\n\t\t\t\tif ( display && display !== \"none\" || !hidden ) {\n\t\t\t\t\tdata_priv.set( elem, \"olddisplay\", hidden ? display : jQuery.css(elem, \"display\") );\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\t// Set the display of most of the elements in a second loop\n\t// to avoid the constant reflow\n\tfor ( index = 0; index < length; index++ ) {\n\t\telem = elements[ index ];\n\t\tif ( !elem.style ) {\n\t\t\tcontinue;\n\t\t}\n\t\tif ( !show || elem.style.display === \"none\" || elem.style.display === \"\" ) {\n\t\t\telem.style.display = show ? values[ index ] || \"\" : \"none\";\n\t\t}\n\t}\n\n\treturn elements;\n}\n\njQuery.fn.extend({\n\tcss: function( name, value ) {\n\t\treturn jQuery.access( this, function( elem, name, value ) {\n\t\t\tvar styles, len,\n\t\t\t\tmap = {},\n\t\t\t\ti = 0;\n\n\t\t\tif ( jQuery.isArray( name ) ) {\n\t\t\t\tstyles = getStyles( elem );\n\t\t\t\tlen = name.length;\n\n\t\t\t\tfor ( ; i < len; i++ ) {\n\t\t\t\t\tmap[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );\n\t\t\t\t}\n\n\t\t\t\treturn map;\n\t\t\t}\n\n\t\t\treturn value !== undefined ?\n\t\t\t\tjQuery.style( elem, name, value ) :\n\t\t\t\tjQuery.css( elem, name );\n\t\t}, name, value, arguments.length > 1 );\n\t},\n\tshow: function() {\n\t\treturn showHide( this, true );\n\t},\n\thide: function() {\n\t\treturn showHide( this );\n\t},\n\ttoggle: function( state ) {\n\t\tif ( typeof state === \"boolean\" ) {\n\t\t\treturn state ? this.show() : this.hide();\n\t\t}\n\n\t\treturn this.each(function() {\n\t\t\tif ( isHidden( this ) ) {\n\t\t\t\tjQuery( this ).show();\n\t\t\t} else {\n\t\t\t\tjQuery( this ).hide();\n\t\t\t}\n\t\t});\n\t}\n});\n\njQuery.extend({\n\t// Add in style property hooks for overriding the default\n\t// behavior of getting and setting a style property\n\tcssHooks: {\n\t\topacity: {\n\t\t\tget: function( elem, computed ) {\n\t\t\t\tif ( computed ) {\n\t\t\t\t\t// We should always get a number back from opacity\n\t\t\t\t\tvar ret = curCSS( elem, \"opacity\" );\n\t\t\t\t\treturn ret === \"\" ? \"1\" : ret;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t},\n\n\t// Don't automatically add \"px\" to these possibly-unitless properties\n\tcssNumber: {\n\t\t\"columnCount\": true,\n\t\t\"fillOpacity\": true,\n\t\t\"fontWeight\": true,\n\t\t\"lineHeight\": true,\n\t\t\"opacity\": true,\n\t\t\"order\": true,\n\t\t\"orphans\": true,\n\t\t\"widows\": true,\n\t\t\"zIndex\": true,\n\t\t\"zoom\": true\n\t},\n\n\t// Add in properties whose names you wish to fix before\n\t// setting or getting the value\n\tcssProps: {\n\t\t// normalize float css property\n\t\t\"float\": \"cssFloat\"\n\t},\n\n\t// Get and set the style property on a DOM Node\n\tstyle: function( elem, name, value, extra ) {\n\t\t// Don't set styles on text and comment nodes\n\t\tif ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Make sure that we're working with the right name\n\t\tvar ret, type, hooks,\n\t\t\torigName = jQuery.camelCase( name ),\n\t\t\tstyle = elem.style;\n\n\t\tname = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );\n\n\t\t// gets hook for the prefixed version\n\t\t// followed by the unprefixed version\n\t\thooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];\n\n\t\t// Check if we're setting a value\n\t\tif ( value !== undefined ) {\n\t\t\ttype = typeof value;\n\n\t\t\t// convert relative number strings (+= or -=) to relative numbers. #7345\n\t\t\tif ( type === \"string\" && (ret = rrelNum.exec( value )) ) {\n\t\t\t\tvalue = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );\n\t\t\t\t// Fixes bug #9237\n\t\t\t\ttype = \"number\";\n\t\t\t}\n\n\t\t\t// Make sure that NaN and null values aren't set. See: #7116\n\t\t\tif ( value == null || type === \"number\" && isNaN( value ) ) {\n\t\t\t\treturn;\n\t\t\t}\n\n\t\t\t// If a number was passed in, add 'px' to the (except for certain CSS properties)\n\t\t\tif ( type === \"number\" && !jQuery.cssNumber[ origName ] ) {\n\t\t\t\tvalue += \"px\";\n\t\t\t}\n\n\t\t\t// Fixes #8908, it can be done more correctly by specifying setters in cssHooks,\n\t\t\t// but it would mean to define eight (for every problematic property) identical functions\n\t\t\tif ( !jQuery.support.clearCloneStyle && value === \"\" && name.indexOf(\"background\") === 0 ) {\n\t\t\t\tstyle[ name ] = \"inherit\";\n\t\t\t}\n\n\t\t\t// If a hook was provided, use that value, otherwise just set the specified value\n\t\t\tif ( !hooks || !(\"set\" in hooks) || (value = hooks.set( elem, value, extra )) !== undefined ) {\n\t\t\t\tstyle[ name ] = value;\n\t\t\t}\n\n\t\t} else {\n\t\t\t// If a hook was provided get the non-computed value from there\n\t\t\tif ( hooks && \"get\" in hooks && (ret = hooks.get( elem, false, extra )) !== undefined ) {\n\t\t\t\treturn ret;\n\t\t\t}\n\n\t\t\t// Otherwise just get the value from the style object\n\t\t\treturn style[ name ];\n\t\t}\n\t},\n\n\tcss: function( elem, name, extra, styles ) {\n\t\tvar val, num, hooks,\n\t\t\torigName = jQuery.camelCase( name );\n\n\t\t// Make sure that we're working with the right name\n\t\tname = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );\n\n\t\t// gets hook for the prefixed version\n\t\t// followed by the unprefixed version\n\t\thooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];\n\n\t\t// If a hook was provided get the computed value from there\n\t\tif ( hooks && \"get\" in hooks ) {\n\t\t\tval = hooks.get( elem, true, extra );\n\t\t}\n\n\t\t// Otherwise, if a way to get the computed value exists, use that\n\t\tif ( val === undefined ) {\n\t\t\tval = curCSS( elem, name, styles );\n\t\t}\n\n\t\t//convert \"normal\" to computed value\n\t\tif ( val === \"normal\" && name in cssNormalTransform ) {\n\t\t\tval = cssNormalTransform[ name ];\n\t\t}\n\n\t\t// Return, converting to number if forced or a qualifier was provided and val looks numeric\n\t\tif ( extra === \"\" || extra ) {\n\t\t\tnum = parseFloat( val );\n\t\t\treturn extra === true || jQuery.isNumeric( num ) ? num || 0 : val;\n\t\t}\n\t\treturn val;\n\t}\n});\n\ncurCSS = function( elem, name, _computed ) {\n\tvar width, minWidth, maxWidth,\n\t\tcomputed = _computed || getStyles( elem ),\n\n\t\t// Support: IE9\n\t\t// getPropertyValue is only needed for .css('filter') in IE9, see #12537\n\t\tret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined,\n\t\tstyle = elem.style;\n\n\tif ( computed ) {\n\n\t\tif ( ret === \"\" && !jQuery.contains( elem.ownerDocument, elem ) ) {\n\t\t\tret = jQuery.style( elem, name );\n\t\t}\n\n\t\t// Support: Safari 5.1\n\t\t// A tribute to the \"awesome hack by Dean Edwards\"\n\t\t// Safari 5.1.7 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels\n\t\t// this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values\n\t\tif ( rnumnonpx.test( ret ) && rmargin.test( name ) ) {\n\n\t\t\t// Remember the original values\n\t\t\twidth = style.width;\n\t\t\tminWidth = style.minWidth;\n\t\t\tmaxWidth = style.maxWidth;\n\n\t\t\t// Put in the new values to get a computed value out\n\t\t\tstyle.minWidth = style.maxWidth = style.width = ret;\n\t\t\tret = computed.width;\n\n\t\t\t// Revert the changed values\n\t\t\tstyle.width = width;\n\t\t\tstyle.minWidth = minWidth;\n\t\t\tstyle.maxWidth = maxWidth;\n\t\t}\n\t}\n\n\treturn ret;\n};\n\n\nfunction setPositiveNumber( elem, value, subtract ) {\n\tvar matches = rnumsplit.exec( value );\n\treturn matches ?\n\t\t// Guard against undefined \"subtract\", e.g., when used as in cssHooks\n\t\tMath.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || \"px\" ) :\n\t\tvalue;\n}\n\nfunction augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {\n\tvar i = extra === ( isBorderBox ? \"border\" : \"content\" ) ?\n\t\t// If we already have the right measurement, avoid augmentation\n\t\t4 :\n\t\t// Otherwise initialize for horizontal or vertical properties\n\t\tname === \"width\" ? 1 : 0,\n\n\t\tval = 0;\n\n\tfor ( ; i < 4; i += 2 ) {\n\t\t// both box models exclude margin, so add it if we want it\n\t\tif ( extra === \"margin\" ) {\n\t\t\tval += jQuery.css( elem, extra + cssExpand[ i ], true, styles );\n\t\t}\n\n\t\tif ( isBorderBox ) {\n\t\t\t// border-box includes padding, so remove it if we want content\n\t\t\tif ( extra === \"content\" ) {\n\t\t\t\tval -= jQuery.css( elem, \"padding\" + cssExpand[ i ], true, styles );\n\t\t\t}\n\n\t\t\t// at this point, extra isn't border nor margin, so remove border\n\t\t\tif ( extra !== \"margin\" ) {\n\t\t\t\tval -= jQuery.css( elem, \"border\" + cssExpand[ i ] + \"Width\", true, styles );\n\t\t\t}\n\t\t} else {\n\t\t\t// at this point, extra isn't content, so add padding\n\t\t\tval += jQuery.css( elem, \"padding\" + cssExpand[ i ], true, styles );\n\n\t\t\t// at this point, extra isn't content nor padding, so add border\n\t\t\tif ( extra !== \"padding\" ) {\n\t\t\t\tval += jQuery.css( elem, \"border\" + cssExpand[ i ] + \"Width\", true, styles );\n\t\t\t}\n\t\t}\n\t}\n\n\treturn val;\n}\n\nfunction getWidthOrHeight( elem, name, extra ) {\n\n\t// Start with offset property, which is equivalent to the border-box value\n\tvar valueIsBorderBox = true,\n\t\tval = name === \"width\" ? elem.offsetWidth : elem.offsetHeight,\n\t\tstyles = getStyles( elem ),\n\t\tisBorderBox = jQuery.support.boxSizing && jQuery.css( elem, \"boxSizing\", false, styles ) === \"border-box\";\n\n\t// some non-html elements return undefined for offsetWidth, so check for null/undefined\n\t// svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285\n\t// MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668\n\tif ( val <= 0 || val == null ) {\n\t\t// Fall back to computed then uncomputed css if necessary\n\t\tval = curCSS( elem, name, styles );\n\t\tif ( val < 0 || val == null ) {\n\t\t\tval = elem.style[ name ];\n\t\t}\n\n\t\t// Computed unit is not pixels. Stop here and return.\n\t\tif ( rnumnonpx.test(val) ) {\n\t\t\treturn val;\n\t\t}\n\n\t\t// we need the check for style in case a browser which returns unreliable values\n\t\t// for getComputedStyle silently falls back to the reliable elem.style\n\t\tvalueIsBorderBox = isBorderBox && ( jQuery.support.boxSizingReliable || val === elem.style[ name ] );\n\n\t\t// Normalize \"\", auto, and prepare for extra\n\t\tval = parseFloat( val ) || 0;\n\t}\n\n\t// use the active box-sizing model to add/subtract irrelevant styles\n\treturn ( val +\n\t\taugmentWidthOrHeight(\n\t\t\telem,\n\t\t\tname,\n\t\t\textra || ( isBorderBox ? \"border\" : \"content\" ),\n\t\t\tvalueIsBorderBox,\n\t\t\tstyles\n\t\t)\n\t) + \"px\";\n}\n\n// Try to determine the default display value of an element\nfunction css_defaultDisplay( nodeName ) {\n\tvar doc = document,\n\t\tdisplay = elemdisplay[ nodeName ];\n\n\tif ( !display ) {\n\t\tdisplay = actualDisplay( nodeName, doc );\n\n\t\t// If the simple way fails, read from inside an iframe\n\t\tif ( display === \"none\" || !display ) {\n\t\t\t// Use the already-created iframe if possible\n\t\t\tiframe = ( iframe ||\n\t\t\t\tjQuery(\"