Repository: lantiga/ki
Branch: master
Commit: 5c2fdfc5f0ad
Files: 38
Total size: 1.4 MB
Directory structure:
gitextract_5ucek8is/
├── .gitignore
├── Gruntfile.js
├── LICENSE
├── README.md
├── bin/
│ └── ki
├── editor/
│ ├── addon/
│ │ └── runmode.js
│ ├── codemirror.css
│ ├── editor.html
│ ├── index.html
│ ├── mode/
│ │ ├── javascript/
│ │ │ └── javascript.js
│ │ └── runmode.js
│ ├── scripts/
│ │ ├── codemirror.js
│ │ ├── editor.js
│ │ ├── escodegen.js
│ │ ├── escope.js
│ │ ├── estraverse.js
│ │ ├── expander.js
│ │ ├── jquery.js
│ │ ├── ki.js
│ │ ├── ki.sjs
│ │ ├── main.js
│ │ ├── mori.js
│ │ ├── parser.js
│ │ ├── patterns.js
│ │ ├── require.js
│ │ ├── scopedEval.js
│ │ ├── stxcase.js
│ │ ├── sweet.js
│ │ ├── syntax.js
│ │ ├── text.js
│ │ └── underscore.js
│ └── theme/
│ └── sweetprism.css
├── lib/
│ ├── ki.js
│ └── ki_run.js
├── macros/
│ └── index.js
├── package.json
├── src/
│ └── ki.sjs
└── test/
└── core.js
================================================
FILE CONTENTS
================================================
================================================
FILE: .gitignore
================================================
.DS_Store
node_modules
npm-debug.log
/test/core.out.js
================================================
FILE: Gruntfile.js
================================================
module.exports = function(grunt) {
grunt.initConfig({
mochaTest: {
test: {
options: {
reporter: 'spec'
},
src: 'test/**/*.out.js'
}
}
});
grunt.registerTask('build', function() {
//var macro = '';
//var files = ['ki.sjs','react.sjs','core.sjs'];
//files.forEach(function(f) { macro += grunt.file.read('./src/' + f) + '\n'; });
// TODO: add filenames of macro files as arguments
var macro = grunt.file.read('./src/ki.sjs');
grunt.file.write('./macros/index.js', macro);
grunt.file.write('./editor/scripts/ki.sjs', macro);
var lib = grunt.file.read('./lib/ki.js');
grunt.file.write('./editor/scripts/ki.js', lib);
});
grunt.registerTask('build-test', function() {
var path = require('path');
var files = ['./test/core.js'];
files.forEach(function(f) {
grunt.file.write(f.replace('.js', '.out.js'), compileFile(f, true));
});
});
//grunt.registerTask('compile', function(fileName) {
// console.log(this.data);
// grunt.log.write(compileFile(fileName));
//});
var moduleCtx;
function compileFile(fileName, isTest) {
var macro = grunt.file.read('./macros/index.js');
var file = grunt.file.read(fileName);
var sweet = require('sweet.js');
if (!moduleCtx) moduleCtx = sweet.loadModule(macro);
return sweet.compile(file, {
modules: [moduleCtx]
}).code;
}
var parseMacros = function(code) {
var re = /ki *macro/
var current = code;
var start = current.search(re);
var ret;
var macros = [];
while (start != -1) {
current = current.substr(start);
ret = getNSExprs(current,2);
macros.push(ret.matches);
current = current.substr(ret.end);
start = current.search(re);
}
var rules = macros.map(function(macro) {
return 'rule { ' + macro[0] + ' } => { _sexpr ' + macro[1] + ' }'
});
return rules.join('\n');
}
grunt.registerTask('compile', function() {
var path = require('path');
var sweet = require('sweet.js');
var uglify = require('uglify-js');
var infile = grunt.option('in');
var outfile = grunt.option('out');
var sourcemap = grunt.option('sourcemap') || false;
var minify = grunt.option('minify') || false;
var compress = grunt.option('compress') || false;
var file;
if (infile) {
file = grunt.file.read(infile);
}
else if (argv._.length === 0) {
console.log(require("optimist").help());
return;
}
var ki_core = grunt.file.read('./macros/index.js');
var include = grunt.option('include');
var includes = typeof include === 'string' ? [include] : include;
var includeFiles = (includes || []).map(function(path) {
return grunt.file.read(path);
});
var rules = includeFiles.map(function(includeFile) {
return parseMacros(includeFile);
});
rules.push(parseMacros(file));
var module = ki_core.replace('/*__macros__*/',rules.join('\n'));
var options = {
filename: infile,
modules: [sweet.loadModule(module)]
};
var compile = function(file) {
var file = includeFiles.join('\n') + file;
if (sourcemap && outfile) {
options.sourceMap = true;
var result = sweet.compile(file, options);
var mapfile = path.basename(outfile) + '.map';
var code = result.code + '\n//# sourceMappingURL=' + mapfile;
var sourceMap = result.sourceMap;
var mapfile = outfile + '.map';
var tmpfile = outfile + '.tmp';
if (minify) {
grunt.file.write(tmpfile, sourceMap);
result = uglify.minify(code, {
fromString: true,
inSourceMap: tmpfile,
outSourceMap: mapfile,
compress: compress
});
code = result.code;
sourceMap = result.map;
grunt.file.delete(tmpfile);
}
grunt.file.write(outfile, code);
grunt.file.write(mapfile, sourceMap);
}
else if (outfile) {
var code = sweet.compile(file, options).code;
if (minify) {
code = uglify.minify(code, {fromString: true, compress: compress}).code;
}
grunt.file.write(outfile, code);
}
else {
var code = sweet.compile(file, options).code;
if (minify) {
code = uglify.minify(code, {fromString: true, compress: compress}).code;
}
console.log(code);
}
}
try {
compile(file);
}
catch (e) {
console.log(e);
}
});
grunt.registerTask('default', ['build']);
grunt.registerTask('test', ['build', 'build-test', 'mochaTest']);
grunt.loadNpmTasks('grunt-mocha-test');
};
================================================
FILE: LICENSE
================================================
Copyright (C) 2014 Luca Antiga http://lantiga.github.io
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
================================================
FILE: README.md
================================================
# ki
**lisp + mori, sweet.js**
See [ki-lang.org](http://ki-lang.org) for more information or [try ki](http://ki-lang.org/editor/editor.html) straight in your browser.
ki is a lisp with Clojure data structures and semantics that can be intermixed with Javascript code at any level.
ki is a thin macro layer on top of [mori](https://github.com/swannodette/mori) plus a few constructs.
ki is in flux, feel free to test it out but expect glitches.
## Currently available functions / special forms
All of [mori](https://github.com/swannodette/mori).
The following list of functions / special forms
```
[] {} [$ ] {$ } add and apply atom bind catch chain cond def defmethod defmulti
defn deref div do doto eq falsey finally fn fnth geq gt if ifNot js leq letc
let lt loop mod mul neq nil not ns or prn recur reset str sub swap threadf
threadl truthy try use when whenNot while
```
Plus destructuring and source maps.
Take a look at the [tests](https://github.com/lantiga/ki/blob/master/test/core.js) to keep up with the latest additions.
## Examples
Require ki (this in turns expands into an appropriate require for mori)
```
ki require core
```
Mori's persistent data structures and Clojure(Script)-like api at your fingertips
```js
var foo = ki (vector 1 2 3)
ki (conj foo 4)
// => [1 2 3 4]
```
Plus lambdas
```js
ki (map (fn [a] (inc a)) (range 5))
// => (1 2 3 4 5)
```
Interoperability: write js in a ki form
```js
var fn1 = ki (js function (a,b) { return a + b + 2; })
```
at any level - e.g. you can use infix where it makes sense
```js
var fn2 = ki (fn [a b] (js a + b + 2))
```
and you can use ki wherever in js code
```js
function somefunc (a) {
ki (toJs (filter (fn [el] (isEven el)) (range a))).forEach(function(el) {
console.log(el);
});
return [0, 1, 2, 3, 4].filter(ki (fn [el] (isEven el)));
}
console.log(somefunc(5));
// => 0
// => 2
// => 4
// [0 2 4]
```
Like a pro
```js
ki (take 6 (map (fn [x] (js x * 2)) (range 1000)))
// => (0 2 4 6 8 10)
```
## Get it
$ npm install -g ki
All set. Now to compile a JavaScript file containing ki code into a plain JavaScript file do
$ ki -o foo_build.js foo.js
To watch the file and have it automatically compiled whenever the file changes on disk
$ ki -w -o foo_build.js foo.js
## License
MIT license http://www.opensource.org/licenses/mit-license.php/
Copyright (C) 2014-2015 Luca Antiga http://lantiga.github.io
================================================
FILE: bin/ki
================================================
#!/usr/bin/env node
var path = require('path');
var fs = require('fs');
var lib = path.join(path.dirname(fs.realpathSync(__filename)),'../lib');
var ret = require(lib + '/ki_run').run();
if (ret != -1) {
process.exit(ret);
}
================================================
FILE: editor/addon/runmode.js
================================================
CodeMirror.runMode = function(string, modespec, callback, options) {
var mode = CodeMirror.getMode(CodeMirror.defaults, modespec);
if (callback.nodeType == 1) {
var tabSize = (options && options.tabSize) || CodeMirror.defaults.tabSize;
var node = callback, col = 0;
node.innerHTML = "";
callback = function(text, style) {
if (text == "\n") {
node.appendChild(document.createElement("br"));
col = 0;
return;
}
var content = "";
// replace tabs
for (var pos = 0;;) {
var idx = text.indexOf("\t", pos);
if (idx == -1) {
content += text.slice(pos);
col += text.length - pos;
break;
} else {
col += idx - pos;
content += text.slice(pos, idx);
var size = tabSize - col % tabSize;
col += size;
for (var i = 0; i < size; ++i) content += " ";
pos = idx + 1;
}
}
if (style) {
var sp = node.appendChild(document.createElement("span"));
sp.className = "cm-" + style.replace(/ +/g, " cm-");
sp.appendChild(document.createTextNode(content));
} else {
node.appendChild(document.createTextNode(content));
}
};
}
var lines = CodeMirror.splitLines(string), state = CodeMirror.startState(mode);
for (var i = 0, e = lines.length; i < e; ++i) {
if (i) callback("\n");
var stream = new CodeMirror.StringStream(lines[i]);
while (!stream.eol()) {
var style = mode.token(stream, state);
callback(stream.current(), style, i, stream.start);
stream.start = stream.pos;
}
}
};
================================================
FILE: editor/codemirror.css
================================================
/* BASICS */
.CodeMirror {
/* Set height, width, borders, and global font properties here */
font-family: monospace;
height: 300px;
}
.CodeMirror-scroll {
/* Set scrolling behaviour here */
overflow: auto;
}
/* PADDING */
.CodeMirror-lines {
padding: 4px 0; /* Vertical padding around content */
}
.CodeMirror pre {
padding: 0 4px; /* Horizontal padding of content */
}
.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
background-color: white; /* The little square between H and V scrollbars */
}
/* GUTTER */
.CodeMirror-gutters {
border-right: 1px solid #ddd;
background-color: #f7f7f7;
white-space: nowrap;
}
.CodeMirror-linenumbers {}
.CodeMirror-linenumber {
padding: 0 3px 0 5px;
min-width: 20px;
text-align: right;
color: #999;
}
/* CURSOR */
.CodeMirror div.CodeMirror-cursor {
border-left: 1px solid black;
z-index: 3;
}
/* Shown when moving in bi-directional text */
.CodeMirror div.CodeMirror-secondarycursor {
border-left: 1px solid silver;
}
.CodeMirror.cm-keymap-fat-cursor div.CodeMirror-cursor {
width: auto;
border: 0;
background: #7e7;
z-index: 1;
}
/* Can style cursor different in overwrite (non-insert) mode */
.CodeMirror div.CodeMirror-cursor.CodeMirror-overwrite {}
.cm-tab { display: inline-block; }
/* DEFAULT THEME */
.cm-s-default .cm-keyword {color: #708;}
.cm-s-default .cm-atom {color: #219;}
.cm-s-default .cm-number {color: #164;}
.cm-s-default .cm-def {color: #00f;}
.cm-s-default .cm-variable {color: black;}
.cm-s-default .cm-variable-2 {color: #05a;}
.cm-s-default .cm-variable-3 {color: #085;}
.cm-s-default .cm-property {color: black;}
.cm-s-default .cm-operator {color: black;}
.cm-s-default .cm-comment {color: #a50;}
.cm-s-default .cm-string {color: #a11;}
.cm-s-default .cm-string-2 {color: #f50;}
.cm-s-default .cm-meta {color: #555;}
.cm-s-default .cm-error {color: #f00;}
.cm-s-default .cm-qualifier {color: #555;}
.cm-s-default .cm-builtin {color: #30a;}
.cm-s-default .cm-bracket {color: #997;}
.cm-s-default .cm-tag {color: #170;}
.cm-s-default .cm-attribute {color: #00c;}
.cm-s-default .cm-header {color: blue;}
.cm-s-default .cm-quote {color: #090;}
.cm-s-default .cm-hr {color: #999;}
.cm-s-default .cm-link {color: #00c;}
.cm-negative {color: #d44;}
.cm-positive {color: #292;}
.cm-header, .cm-strong {font-weight: bold;}
.cm-em {font-style: italic;}
.cm-link {text-decoration: underline;}
.cm-invalidchar {color: #f00;}
div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}
div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}
/* STOP */
/* The rest of this file contains styles related to the mechanics of
the editor. You probably shouldn't touch them. */
.CodeMirror {
line-height: 1;
position: relative;
overflow: hidden;
background: white;
color: black;
}
.CodeMirror-scroll {
/* 30px is the magic margin used to hide the element's real scrollbars */
/* See overflow: hidden in .CodeMirror */
margin-bottom: -30px; margin-right: -30px;
padding-bottom: 30px; padding-right: 30px;
height: 100%;
outline: none; /* Prevent dragging from highlighting the element */
position: relative;
}
.CodeMirror-sizer {
position: relative;
}
/* The fake, visible scrollbars. Used to force redraw during scrolling
before actuall scrolling happens, thus preventing shaking and
flickering artifacts. */
.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
position: absolute;
z-index: 6;
display: none;
}
.CodeMirror-vscrollbar {
right: 0; top: 0;
overflow-x: hidden;
overflow-y: scroll;
}
.CodeMirror-hscrollbar {
bottom: 0; left: 0;
overflow-y: hidden;
overflow-x: scroll;
}
.CodeMirror-scrollbar-filler {
right: 0; bottom: 0;
}
.CodeMirror-gutter-filler {
left: 0; bottom: 0;
}
.CodeMirror-gutters {
position: absolute; left: 0; top: 0;
padding-bottom: 30px;
z-index: 3;
}
.CodeMirror-gutter {
white-space: normal;
height: 100%;
padding-bottom: 30px;
margin-bottom: -32px;
display: inline-block;
/* Hack to make IE7 behave */
*zoom:1;
*display:inline;
}
.CodeMirror-gutter-elt {
position: absolute;
cursor: default;
z-index: 4;
}
.CodeMirror-lines {
cursor: text;
}
.CodeMirror pre {
/* Reset some styles that the rest of the page might have set */
-moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
border-width: 0;
background: transparent;
font-family: inherit;
font-size: inherit;
margin: 0;
white-space: pre;
word-wrap: normal;
line-height: inherit;
color: inherit;
z-index: 2;
position: relative;
overflow: visible;
}
.CodeMirror-wrap pre {
word-wrap: break-word;
white-space: pre-wrap;
word-break: normal;
}
.CodeMirror-linebackground {
position: absolute;
left: 0; right: 0; top: 0; bottom: 0;
z-index: 0;
}
.CodeMirror-linewidget {
position: relative;
z-index: 2;
overflow: auto;
}
.CodeMirror-widget {
}
.CodeMirror-wrap .CodeMirror-scroll {
overflow-x: hidden;
}
.CodeMirror-measure {
position: absolute;
width: 100%; height: 0px;
overflow: hidden;
visibility: hidden;
}
.CodeMirror-measure pre { position: static; }
.CodeMirror div.CodeMirror-cursor {
position: absolute;
visibility: hidden;
border-right: none;
width: 0;
}
.CodeMirror-focused div.CodeMirror-cursor {
visibility: visible;
}
.CodeMirror-selected { background: #d9d9d9; }
.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
.cm-searching {
background: #ffa;
background: rgba(255, 255, 0, .4);
}
/* IE7 hack to prevent it from returning funny offsetTops on the spans */
.CodeMirror span { *vertical-align: text-bottom; }
@media print {
/* Hide the cursor when printing */
.CodeMirror div.CodeMirror-cursor {
visibility: hidden;
}
}
================================================
FILE: editor/editor.html
================================================
Try ki
Try ki: a lisp for your JavaScript
Display require expansion
================================================
FILE: editor/index.html
================================================
================================================
FILE: editor/mode/javascript/javascript.js
================================================
// TODO actually recognize syntax of TypeScript constructs
CodeMirror.defineMode("javascript", function(config, parserConfig) {
var indentUnit = config.indentUnit;
var jsonMode = parserConfig.json;
var isTS = parserConfig.typescript;
// Tokenizer
var keywords = function(){
function kw(type) {return {type: type, style: "keyword"};}
var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
var operator = kw("operator"), atom = {type: "atom", style: "atom"};
var jsKeywords = {
"if": A, "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
"return": C, "break": C, "continue": C, "new": C, "delete": C, "throw": C,
"var": kw("var"), "const": kw("var"), "let": kw("var"),
"function": kw("function"), "catch": kw("catch"),
"for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
"in": operator, "typeof": operator, "instanceof": operator,
"true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom
};
// Extend the 'normal' keywords with the TypeScript language extensions
if (isTS) {
var type = {type: "variable", style: "variable-3"};
var tsKeywords = {
// object-like things
"interface": kw("interface"),
"class": kw("class"),
"extends": kw("extends"),
"constructor": kw("constructor"),
// scope modifiers
"public": kw("public"),
"private": kw("private"),
"protected": kw("protected"),
"static": kw("static"),
"super": kw("super"),
// types
"string": type, "number": type, "bool": type, "any": type
};
for (var attr in tsKeywords) {
jsKeywords[attr] = tsKeywords[attr];
}
}
return jsKeywords;
}();
var isOperatorChar = /[+\-*&%=<>!?|]/;
function chain(stream, state, f) {
state.tokenize = f;
return f(stream, state);
}
function nextUntilUnescaped(stream, end) {
var escaped = false, next;
while ((next = stream.next()) != null) {
if (next == end && !escaped)
return false;
escaped = !escaped && next == "\\";
}
return escaped;
}
// Used as scratch variables to communicate multiple values without
// consing up tons of objects.
var type, content;
function ret(tp, style, cont) {
type = tp; content = cont;
return style;
}
function jsTokenBase(stream, state) {
var ch = stream.next();
if (ch == '"' || ch == "'")
return chain(stream, state, jsTokenString(ch));
else if (/[\[\]{}\(\),;\:\.]/.test(ch))
return ret(ch);
else if (ch == "0" && stream.eat(/x/i)) {
stream.eatWhile(/[\da-f]/i);
return ret("number", "number");
}
else if (/\d/.test(ch) || ch == "-" && stream.eat(/\d/)) {
stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
return ret("number", "number");
}
else if (ch == "/") {
if (stream.eat("*")) {
return chain(stream, state, jsTokenComment);
}
else if (stream.eat("/")) {
stream.skipToEnd();
return ret("comment", "comment");
}
else if (state.lastType == "operator" || state.lastType == "keyword c" ||
/^[\[{}\(,;:]$/.test(state.lastType)) {
nextUntilUnescaped(stream, "/");
stream.eatWhile(/[gimy]/); // 'y' is "sticky" option in Mozilla
return ret("regexp", "string-2");
}
else {
stream.eatWhile(isOperatorChar);
return ret("operator", null, stream.current());
}
}
else if (ch == "#") {
stream.skipToEnd();
return ret("error", "error");
}
else if (isOperatorChar.test(ch)) {
stream.eatWhile(isOperatorChar);
return ret("operator", null, stream.current());
}
else {
stream.eatWhile(/[\w\$_]/);
var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
return (known && state.lastType != ".") ? ret(known.type, known.style, word) :
ret("variable", "variable", word);
}
}
function jsTokenString(quote) {
return function(stream, state) {
if (!nextUntilUnescaped(stream, quote))
state.tokenize = jsTokenBase;
return ret("string", "string");
};
}
function jsTokenComment(stream, state) {
var maybeEnd = false, ch;
while (ch = stream.next()) {
if (ch == "/" && maybeEnd) {
state.tokenize = jsTokenBase;
break;
}
maybeEnd = (ch == "*");
}
return ret("comment", "comment");
}
// Parser
var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true};
function JSLexical(indented, column, type, align, prev, info) {
this.indented = indented;
this.column = column;
this.type = type;
this.prev = prev;
this.info = info;
if (align != null) this.align = align;
}
function inScope(state, varname) {
for (var v = state.localVars; v; v = v.next)
if (v.name == varname) return true;
}
function parseJS(state, style, type, content, stream) {
var cc = state.cc;
// Communicate our context to the combinators.
// (Less wasteful than consing up a hundred closures on every call.)
cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc;
if (!state.lexical.hasOwnProperty("align"))
state.lexical.align = true;
while(true) {
var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
if (combinator(type, content)) {
while(cc.length && cc[cc.length - 1].lex)
cc.pop()();
if (cx.marked) return cx.marked;
if (type == "variable" && inScope(state, content)) return "variable-2";
return style;
}
}
}
// Combinator utils
var cx = {state: null, column: null, marked: null, cc: null};
function pass() {
for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
}
function cont() {
pass.apply(null, arguments);
return true;
}
function register(varname) {
var state = cx.state;
if (state.context) {
cx.marked = "def";
for (var v = state.localVars; v; v = v.next)
if (v.name == varname) return;
state.localVars = {name: varname, next: state.localVars};
}
}
// Combinators
var defaultVars = {name: "this", next: {name: "arguments"}};
function pushcontext() {
cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
cx.state.localVars = defaultVars;
}
function popcontext() {
cx.state.localVars = cx.state.context.vars;
cx.state.context = cx.state.context.prev;
}
function pushlex(type, info) {
var result = function() {
var state = cx.state;
state.lexical = new JSLexical(state.indented, cx.stream.column(), type, null, state.lexical, info);
};
result.lex = true;
return result;
}
function poplex() {
var state = cx.state;
if (state.lexical.prev) {
if (state.lexical.type == ")")
state.indented = state.lexical.indented;
state.lexical = state.lexical.prev;
}
}
poplex.lex = true;
function expect(wanted) {
return function expecting(type) {
if (type == wanted) return cont();
else if (wanted == ";") return pass();
else return cont(arguments.callee);
};
}
function statement(type) {
if (type == "var") return cont(pushlex("vardef"), vardef1, expect(";"), poplex);
if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
if (type == "{") return cont(pushlex("}"), block, poplex);
if (type == ";") return cont();
if (type == "function") return cont(functiondef);
if (type == "for") return cont(pushlex("form"), expect("("), pushlex(")"), forspec1, expect(")"),
poplex, statement, poplex);
if (type == "variable") return cont(pushlex("stat"), maybelabel);
if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"),
block, poplex, poplex);
if (type == "case") return cont(expression, expect(":"));
if (type == "default") return cont(expect(":"));
if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
statement, poplex, popcontext);
return pass(pushlex("stat"), expression, expect(";"), poplex);
}
function expression(type) {
if (atomicTypes.hasOwnProperty(type)) return cont(maybeoperator);
if (type == "function") return cont(functiondef);
if (type == "keyword c") return cont(maybeexpression);
if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeoperator);
if (type == "operator") return cont(expression);
if (type == "[") return cont(pushlex("]"), commasep(expression, "]"), poplex, maybeoperator);
if (type == "{") return cont(pushlex("}"), commasep(objprop, "}"), poplex, maybeoperator);
return cont();
}
function maybeexpression(type) {
if (type.match(/[;\}\)\],]/)) return pass();
return pass(expression);
}
function maybeoperator(type, value) {
if (type == "operator" && /\+\+|--/.test(value)) return cont(maybeoperator);
if (type == "operator" && value == "?") return cont(expression, expect(":"), expression);
if (type == ";") return;
if (type == "(") return cont(pushlex(")"), commasep(expression, ")"), poplex, maybeoperator);
if (type == ".") return cont(property, maybeoperator);
if (type == "[") return cont(pushlex("]"), expression, expect("]"), poplex, maybeoperator);
}
function maybelabel(type) {
if (type == ":") return cont(poplex, statement);
return pass(maybeoperator, expect(";"), poplex);
}
function property(type) {
if (type == "variable") {cx.marked = "property"; return cont();}
}
function objprop(type) {
if (type == "variable") cx.marked = "property";
if (atomicTypes.hasOwnProperty(type)) return cont(expect(":"), expression);
}
function commasep(what, end) {
function proceed(type) {
if (type == ",") return cont(what, proceed);
if (type == end) return cont();
return cont(expect(end));
}
return function commaSeparated(type) {
if (type == end) return cont();
else return pass(what, proceed);
};
}
function block(type) {
if (type == "}") return cont();
return pass(statement, block);
}
function maybetype(type) {
if (type == ":") return cont(typedef);
return pass();
}
function typedef(type) {
if (type == "variable"){cx.marked = "variable-3"; return cont();}
return pass();
}
function vardef1(type, value) {
if (type == "variable") {
register(value);
return isTS ? cont(maybetype, vardef2) : cont(vardef2);
}
return pass();
}
function vardef2(type, value) {
if (value == "=") return cont(expression, vardef2);
if (type == ",") return cont(vardef1);
}
function forspec1(type) {
if (type == "var") return cont(vardef1, expect(";"), forspec2);
if (type == ";") return cont(forspec2);
if (type == "variable") return cont(formaybein);
return cont(forspec2);
}
function formaybein(_type, value) {
if (value == "in") return cont(expression);
return cont(maybeoperator, forspec2);
}
function forspec2(type, value) {
if (type == ";") return cont(forspec3);
if (value == "in") return cont(expression);
return cont(expression, expect(";"), forspec3);
}
function forspec3(type) {
if (type != ")") cont(expression);
}
function functiondef(type, value) {
if (type == "variable") {register(value); return cont(functiondef);}
if (type == "(") return cont(pushlex(")"), pushcontext, commasep(funarg, ")"), poplex, statement, popcontext);
}
function funarg(type, value) {
if (type == "variable") {register(value); return isTS ? cont(maybetype) : cont();}
}
// Interface
return {
startState: function(basecolumn) {
return {
tokenize: jsTokenBase,
lastType: null,
cc: [],
lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
localVars: parserConfig.localVars,
context: parserConfig.localVars && {vars: parserConfig.localVars},
indented: 0
};
},
token: function(stream, state) {
if (stream.sol()) {
if (!state.lexical.hasOwnProperty("align"))
state.lexical.align = false;
state.indented = stream.indentation();
}
if (stream.eatSpace()) return null;
var style = state.tokenize(stream, state);
if (type == "comment") return style;
state.lastType = type;
return parseJS(state, style, type, content, stream);
},
indent: function(state, textAfter) {
if (state.tokenize == jsTokenComment) return CodeMirror.Pass;
if (state.tokenize != jsTokenBase) return 0;
var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical;
if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev;
var type = lexical.type, closing = firstChar == type;
if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? 4 : 0);
else if (type == "form" && firstChar == "{") return lexical.indented;
else if (type == "form") return lexical.indented + indentUnit;
else if (type == "stat")
return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? indentUnit : 0);
else if (lexical.info == "switch" && !closing)
return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
else if (lexical.align) return lexical.column + (closing ? 0 : 1);
else return lexical.indented + (closing ? 0 : indentUnit);
},
electricChars: ":{}",
jsonMode: jsonMode
};
});
CodeMirror.defineMIME("text/javascript", "javascript");
CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
================================================
FILE: editor/mode/runmode.js
================================================
CodeMirror.runMode = function(string, modespec, callback, options) {
var mode = CodeMirror.getMode(CodeMirror.defaults, modespec);
if (callback.nodeType == 1) {
var tabSize = (options && options.tabSize) || CodeMirror.defaults.tabSize;
var node = callback, col = 0;
node.innerHTML = "";
callback = function(text, style) {
if (text == "\n") {
node.appendChild(document.createElement("br"));
col = 0;
return;
}
var content = "";
// replace tabs
for (var pos = 0;;) {
var idx = text.indexOf("\t", pos);
if (idx == -1) {
content += text.slice(pos);
col += text.length - pos;
break;
} else {
col += idx - pos;
content += text.slice(pos, idx);
var size = tabSize - col % tabSize;
col += size;
for (var i = 0; i < size; ++i) content += " ";
pos = idx + 1;
}
}
if (style) {
var sp = node.appendChild(document.createElement("span"));
sp.className = "cm-" + style.replace(/ +/g, " cm-");
sp.appendChild(document.createTextNode(content));
} else {
node.appendChild(document.createTextNode(content));
}
};
}
var lines = CodeMirror.splitLines(string), state = CodeMirror.startState(mode);
for (var i = 0, e = lines.length; i < e; ++i) {
if (i) callback("\n");
var stream = new CodeMirror.StringStream(lines[i]);
while (!stream.eol()) {
var style = mode.token(stream, state);
callback(stream.current(), style, i, stream.start);
stream.start = stream.pos;
}
}
};
================================================
FILE: editor/scripts/codemirror.js
================================================
// CodeMirror version 3.14
//
// CodeMirror is the only global var we claim
window.CodeMirror = (function() {
"use strict";
// BROWSER SNIFFING
// Crude, but necessary to handle a number of hard-to-feature-detect
// bugs and behavior differences.
var gecko = /gecko\/\d/i.test(navigator.userAgent);
var ie = /MSIE \d/.test(navigator.userAgent);
var ie_lt8 = ie && (document.documentMode == null || document.documentMode < 8);
var ie_lt9 = ie && (document.documentMode == null || document.documentMode < 9);
var webkit = /WebKit\//.test(navigator.userAgent);
var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(navigator.userAgent);
var chrome = /Chrome\//.test(navigator.userAgent);
var opera = /Opera\//.test(navigator.userAgent);
var safari = /Apple Computer/.test(navigator.vendor);
var khtml = /KHTML\//.test(navigator.userAgent);
var mac_geLion = /Mac OS X 1\d\D([7-9]|\d\d)\D/.test(navigator.userAgent);
var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(navigator.userAgent);
var phantom = /PhantomJS/.test(navigator.userAgent);
var ios = /AppleWebKit/.test(navigator.userAgent) && /Mobile\/\w+/.test(navigator.userAgent);
// This is woefully incomplete. Suggestions for alternative methods welcome.
var mobile = ios || /Android|webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(navigator.userAgent);
var mac = ios || /Mac/.test(navigator.platform);
var windows = /windows/i.test(navigator.platform);
var opera_version = opera && navigator.userAgent.match(/Version\/(\d*\.\d*)/);
if (opera_version) opera_version = Number(opera_version[1]);
// Some browsers use the wrong event properties to signal cmd/ctrl on OS X
var flipCtrlCmd = mac && (qtwebkit || opera && (opera_version == null || opera_version < 12.11));
var captureMiddleClick = gecko || (ie && !ie_lt9);
// Optimize some code when these features are not used
var sawReadOnlySpans = false, sawCollapsedSpans = false;
// CONSTRUCTOR
function CodeMirror(place, options) {
if (!(this instanceof CodeMirror)) return new CodeMirror(place, options);
this.options = options = options || {};
// Determine effective options based on given values and defaults.
for (var opt in defaults) if (!options.hasOwnProperty(opt) && defaults.hasOwnProperty(opt))
options[opt] = defaults[opt];
setGuttersForLineNumbers(options);
var docStart = typeof options.value == "string" ? 0 : options.value.first;
var display = this.display = makeDisplay(place, docStart);
display.wrapper.CodeMirror = this;
updateGutters(this);
if (options.autofocus && !mobile) focusInput(this);
this.state = {keyMaps: [],
overlays: [],
modeGen: 0,
overwrite: false, focused: false,
suppressEdits: false, pasteIncoming: false,
draggingText: false,
highlight: new Delayed()};
themeChanged(this);
if (options.lineWrapping)
this.display.wrapper.className += " CodeMirror-wrap";
var doc = options.value;
if (typeof doc == "string") doc = new Doc(options.value, options.mode);
operation(this, attachDoc)(this, doc);
// Override magic textarea content restore that IE sometimes does
// on our hidden textarea on reload
if (ie) setTimeout(bind(resetInput, this, true), 20);
registerEventHandlers(this);
// IE throws unspecified error in certain cases, when
// trying to access activeElement before onload
var hasFocus; try { hasFocus = (document.activeElement == display.input); } catch(e) { }
if (hasFocus || (options.autofocus && !mobile)) setTimeout(bind(onFocus, this), 20);
else onBlur(this);
operation(this, function() {
for (var opt in optionHandlers)
if (optionHandlers.propertyIsEnumerable(opt))
optionHandlers[opt](this, options[opt], Init);
for (var i = 0; i < initHooks.length; ++i) initHooks[i](this);
})();
}
// DISPLAY CONSTRUCTOR
function makeDisplay(place, docStart) {
var d = {};
var input = d.input = elt("textarea", null, null, "position: absolute; padding: 0; width: 1px; height: 1em; outline: none; font-size: 4px;");
if (webkit) input.style.width = "1000px";
else input.setAttribute("wrap", "off");
// if border: 0; -- iOS fails to open keyboard (issue #1287)
if (ios) input.style.border = "1px solid black";
input.setAttribute("autocorrect", "off"); input.setAttribute("autocapitalize", "off"); input.setAttribute("spellcheck", "false");
// Wraps and hides input textarea
d.inputDiv = elt("div", [input], null, "overflow: hidden; position: relative; width: 3px; height: 0px;");
// The actual fake scrollbars.
d.scrollbarH = elt("div", [elt("div", null, null, "height: 1px")], "CodeMirror-hscrollbar");
d.scrollbarV = elt("div", [elt("div", null, null, "width: 1px")], "CodeMirror-vscrollbar");
d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler");
d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler");
// DIVs containing the selection and the actual code
d.lineDiv = elt("div", null, "CodeMirror-code");
d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1");
// Blinky cursor, and element used to ensure cursor fits at the end of a line
d.cursor = elt("div", "\u00a0", "CodeMirror-cursor");
// Secondary cursor, shown when on a 'jump' in bi-directional text
d.otherCursor = elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor");
// Used to measure text size
d.measure = elt("div", null, "CodeMirror-measure");
// Wraps everything that needs to exist inside the vertically-padded coordinate system
d.lineSpace = elt("div", [d.measure, d.selectionDiv, d.lineDiv, d.cursor, d.otherCursor],
null, "position: relative; outline: none");
// Moved around its parent to cover visible view
d.mover = elt("div", [elt("div", [d.lineSpace], "CodeMirror-lines")], null, "position: relative");
// Set to the height of the text, causes scrolling
d.sizer = elt("div", [d.mover], "CodeMirror-sizer");
// D is needed because behavior of elts with overflow: auto and padding is inconsistent across browsers
d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerCutOff + "px; width: 1px;");
// Will contain the gutters, if any
d.gutters = elt("div", null, "CodeMirror-gutters");
d.lineGutter = null;
// Provides scrolling
d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll");
d.scroller.setAttribute("tabIndex", "-1");
// The element in which the editor lives.
d.wrapper = elt("div", [d.inputDiv, d.scrollbarH, d.scrollbarV,
d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
// Work around IE7 z-index bug
if (ie_lt8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; }
if (place.appendChild) place.appendChild(d.wrapper); else place(d.wrapper);
// Needed to hide big blue blinking cursor on Mobile Safari
if (ios) input.style.width = "0px";
if (!webkit) d.scroller.draggable = true;
// Needed to handle Tab key in KHTML
if (khtml) { d.inputDiv.style.height = "1px"; d.inputDiv.style.position = "absolute"; }
// Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
else if (ie_lt8) d.scrollbarH.style.minWidth = d.scrollbarV.style.minWidth = "18px";
// Current visible range (may be bigger than the view window).
d.viewOffset = d.lastSizeC = 0;
d.showingFrom = d.showingTo = docStart;
// Used to only resize the line number gutter when necessary (when
// the amount of lines crosses a boundary that makes its width change)
d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null;
// See readInput and resetInput
d.prevInput = "";
// Set to true when a non-horizontal-scrolling widget is added. As
// an optimization, widget aligning is skipped when d is false.
d.alignWidgets = false;
// Flag that indicates whether we currently expect input to appear
// (after some event like 'keypress' or 'input') and are polling
// intensively.
d.pollingFast = false;
// Self-resetting timeout for the poller
d.poll = new Delayed();
d.cachedCharWidth = d.cachedTextHeight = null;
d.measureLineCache = [];
d.measureLineCachePos = 0;
// Tracks when resetInput has punted to just putting a short
// string instead of the (large) selection.
d.inaccurateSelection = false;
// Tracks the maximum line length so that the horizontal scrollbar
// can be kept static when scrolling.
d.maxLine = null;
d.maxLineLength = 0;
d.maxLineChanged = false;
// Used for measuring wheel scrolling granularity
d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null;
return d;
}
// STATE UPDATES
// Used to get the editor into a consistent state again when options change.
function loadMode(cm) {
cm.doc.mode = CodeMirror.getMode(cm.options, cm.doc.modeOption);
cm.doc.iter(function(line) {
if (line.stateAfter) line.stateAfter = null;
if (line.styles) line.styles = null;
});
cm.doc.frontier = cm.doc.first;
startWorker(cm, 100);
cm.state.modeGen++;
if (cm.curOp) regChange(cm);
}
function wrappingChanged(cm) {
if (cm.options.lineWrapping) {
cm.display.wrapper.className += " CodeMirror-wrap";
cm.display.sizer.style.minWidth = "";
} else {
cm.display.wrapper.className = cm.display.wrapper.className.replace(" CodeMirror-wrap", "");
computeMaxLength(cm);
}
estimateLineHeights(cm);
regChange(cm);
clearCaches(cm);
setTimeout(function(){updateScrollbars(cm);}, 100);
}
function estimateHeight(cm) {
var th = textHeight(cm.display), wrapping = cm.options.lineWrapping;
var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3);
return function(line) {
if (lineIsHidden(cm.doc, line))
return 0;
else if (wrapping)
return (Math.ceil(line.text.length / perLine) || 1) * th;
else
return th;
};
}
function estimateLineHeights(cm) {
var doc = cm.doc, est = estimateHeight(cm);
doc.iter(function(line) {
var estHeight = est(line);
if (estHeight != line.height) updateLineHeight(line, estHeight);
});
}
function keyMapChanged(cm) {
var map = keyMap[cm.options.keyMap], style = map.style;
cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-keymap-\S+/g, "") +
(style ? " cm-keymap-" + style : "");
cm.state.disableInput = map.disableInput;
}
function themeChanged(cm) {
cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-");
clearCaches(cm);
}
function guttersChanged(cm) {
updateGutters(cm);
regChange(cm);
setTimeout(function(){alignHorizontally(cm);}, 20);
}
function updateGutters(cm) {
var gutters = cm.display.gutters, specs = cm.options.gutters;
removeChildren(gutters);
for (var i = 0; i < specs.length; ++i) {
var gutterClass = specs[i];
var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass));
if (gutterClass == "CodeMirror-linenumbers") {
cm.display.lineGutter = gElt;
gElt.style.width = (cm.display.lineNumWidth || 1) + "px";
}
}
gutters.style.display = i ? "" : "none";
}
function lineLength(doc, line) {
if (line.height == 0) return 0;
var len = line.text.length, merged, cur = line;
while (merged = collapsedSpanAtStart(cur)) {
var found = merged.find();
cur = getLine(doc, found.from.line);
len += found.from.ch - found.to.ch;
}
cur = line;
while (merged = collapsedSpanAtEnd(cur)) {
var found = merged.find();
len -= cur.text.length - found.from.ch;
cur = getLine(doc, found.to.line);
len += cur.text.length - found.to.ch;
}
return len;
}
function computeMaxLength(cm) {
var d = cm.display, doc = cm.doc;
d.maxLine = getLine(doc, doc.first);
d.maxLineLength = lineLength(doc, d.maxLine);
d.maxLineChanged = true;
doc.iter(function(line) {
var len = lineLength(doc, line);
if (len > d.maxLineLength) {
d.maxLineLength = len;
d.maxLine = line;
}
});
}
// Make sure the gutters options contains the element
// "CodeMirror-linenumbers" when the lineNumbers option is true.
function setGuttersForLineNumbers(options) {
var found = false;
for (var i = 0; i < options.gutters.length; ++i) {
if (options.gutters[i] == "CodeMirror-linenumbers") {
if (options.lineNumbers) found = true;
else options.gutters.splice(i--, 1);
}
}
if (!found && options.lineNumbers)
options.gutters.push("CodeMirror-linenumbers");
}
// SCROLLBARS
// Re-synchronize the fake scrollbars with the actual size of the
// content. Optionally force a scrollTop.
function updateScrollbars(cm) {
var d = cm.display, docHeight = cm.doc.height;
var totalHeight = docHeight + paddingVert(d);
d.sizer.style.minHeight = d.heightForcer.style.top = totalHeight + "px";
d.gutters.style.height = Math.max(totalHeight, d.scroller.clientHeight - scrollerCutOff) + "px";
var scrollHeight = Math.max(totalHeight, d.scroller.scrollHeight);
var needsH = d.scroller.scrollWidth > (d.scroller.clientWidth + 1);
var needsV = scrollHeight > (d.scroller.clientHeight + 1);
if (needsV) {
d.scrollbarV.style.display = "block";
d.scrollbarV.style.bottom = needsH ? scrollbarWidth(d.measure) + "px" : "0";
d.scrollbarV.firstChild.style.height =
(scrollHeight - d.scroller.clientHeight + d.scrollbarV.clientHeight) + "px";
} else d.scrollbarV.style.display = "";
if (needsH) {
d.scrollbarH.style.display = "block";
d.scrollbarH.style.right = needsV ? scrollbarWidth(d.measure) + "px" : "0";
d.scrollbarH.firstChild.style.width =
(d.scroller.scrollWidth - d.scroller.clientWidth + d.scrollbarH.clientWidth) + "px";
} else d.scrollbarH.style.display = "";
if (needsH && needsV) {
d.scrollbarFiller.style.display = "block";
d.scrollbarFiller.style.height = d.scrollbarFiller.style.width = scrollbarWidth(d.measure) + "px";
} else d.scrollbarFiller.style.display = "";
if (needsH && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
d.gutterFiller.style.display = "block";
d.gutterFiller.style.height = scrollbarWidth(d.measure) + "px";
d.gutterFiller.style.width = d.gutters.offsetWidth + "px";
} else d.gutterFiller.style.display = "";
if (mac_geLion && scrollbarWidth(d.measure) === 0)
d.scrollbarV.style.minWidth = d.scrollbarH.style.minHeight = mac_geMountainLion ? "18px" : "12px";
}
function visibleLines(display, doc, viewPort) {
var top = display.scroller.scrollTop, height = display.wrapper.clientHeight;
if (typeof viewPort == "number") top = viewPort;
else if (viewPort) {top = viewPort.top; height = viewPort.bottom - viewPort.top;}
top = Math.floor(top - paddingTop(display));
var bottom = Math.ceil(top + height);
return {from: lineAtHeight(doc, top), to: lineAtHeight(doc, bottom)};
}
// LINE NUMBERS
function alignHorizontally(cm) {
var display = cm.display;
if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return;
var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft;
var gutterW = display.gutters.offsetWidth, l = comp + "px";
for (var n = display.lineDiv.firstChild; n; n = n.nextSibling) if (n.alignable) {
for (var i = 0, a = n.alignable; i < a.length; ++i) a[i].style.left = l;
}
if (cm.options.fixedGutter)
display.gutters.style.left = (comp + gutterW) + "px";
}
function maybeUpdateLineNumberWidth(cm) {
if (!cm.options.lineNumbers) return false;
var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display;
if (last.length != display.lineNumChars) {
var test = display.measure.appendChild(elt("div", [elt("div", last)],
"CodeMirror-linenumber CodeMirror-gutter-elt"));
var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW;
display.lineGutter.style.width = "";
display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding);
display.lineNumWidth = display.lineNumInnerWidth + padding;
display.lineNumChars = display.lineNumInnerWidth ? last.length : -1;
display.lineGutter.style.width = display.lineNumWidth + "px";
return true;
}
return false;
}
function lineNumberFor(options, i) {
return String(options.lineNumberFormatter(i + options.firstLineNumber));
}
function compensateForHScroll(display) {
return getRect(display.scroller).left - getRect(display.sizer).left;
}
// DISPLAY DRAWING
function updateDisplay(cm, changes, viewPort) {
var oldFrom = cm.display.showingFrom, oldTo = cm.display.showingTo, updated;
var visible = visibleLines(cm.display, cm.doc, viewPort);
for (;;) {
if (!updateDisplayInner(cm, changes, visible)) break;
updated = true;
updateSelection(cm);
updateScrollbars(cm);
// Clip forced viewport to actual scrollable area
if (viewPort)
viewPort = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight,
typeof viewPort == "number" ? viewPort : viewPort.top);
visible = visibleLines(cm.display, cm.doc, viewPort);
if (visible.from >= cm.display.showingFrom && visible.to <= cm.display.showingTo)
break;
changes = [];
}
if (updated) {
signalLater(cm, "update", cm);
if (cm.display.showingFrom != oldFrom || cm.display.showingTo != oldTo)
signalLater(cm, "viewportChange", cm, cm.display.showingFrom, cm.display.showingTo);
}
return updated;
}
// Uses a set of changes plus the current scroll position to
// determine which DOM updates have to be made, and makes the
// updates.
function updateDisplayInner(cm, changes, visible) {
var display = cm.display, doc = cm.doc;
if (!display.wrapper.clientWidth) {
display.showingFrom = display.showingTo = doc.first;
display.viewOffset = 0;
return;
}
// Bail out if the visible area is already rendered and nothing changed.
if (changes.length == 0 &&
visible.from > display.showingFrom && visible.to < display.showingTo)
return;
if (maybeUpdateLineNumberWidth(cm))
changes = [{from: doc.first, to: doc.first + doc.size}];
var gutterW = display.sizer.style.marginLeft = display.gutters.offsetWidth + "px";
display.scrollbarH.style.left = cm.options.fixedGutter ? gutterW : "0";
// Used to determine which lines need their line numbers updated
var positionsChangedFrom = Infinity;
if (cm.options.lineNumbers)
for (var i = 0; i < changes.length; ++i)
if (changes[i].diff) { positionsChangedFrom = changes[i].from; break; }
var end = doc.first + doc.size;
var from = Math.max(visible.from - cm.options.viewportMargin, doc.first);
var to = Math.min(end, visible.to + cm.options.viewportMargin);
if (display.showingFrom < from && from - display.showingFrom < 20) from = Math.max(doc.first, display.showingFrom);
if (display.showingTo > to && display.showingTo - to < 20) to = Math.min(end, display.showingTo);
if (sawCollapsedSpans) {
from = lineNo(visualLine(doc, getLine(doc, from)));
while (to < end && lineIsHidden(doc, getLine(doc, to))) ++to;
}
// Create a range of theoretically intact lines, and punch holes
// in that using the change info.
var intact = [{from: Math.max(display.showingFrom, doc.first),
to: Math.min(display.showingTo, end)}];
if (intact[0].from >= intact[0].to) intact = [];
else intact = computeIntact(intact, changes);
// When merged lines are present, we might have to reduce the
// intact ranges because changes in continued fragments of the
// intact lines do require the lines to be redrawn.
if (sawCollapsedSpans)
for (var i = 0; i < intact.length; ++i) {
var range = intact[i], merged;
while (merged = collapsedSpanAtEnd(getLine(doc, range.to - 1))) {
var newTo = merged.find().from.line;
if (newTo > range.from) range.to = newTo;
else { intact.splice(i--, 1); break; }
}
}
// Clip off the parts that won't be visible
var intactLines = 0;
for (var i = 0; i < intact.length; ++i) {
var range = intact[i];
if (range.from < from) range.from = from;
if (range.to > to) range.to = to;
if (range.from >= range.to) intact.splice(i--, 1);
else intactLines += range.to - range.from;
}
if (intactLines == to - from && from == display.showingFrom && to == display.showingTo) {
updateViewOffset(cm);
return;
}
intact.sort(function(a, b) {return a.from - b.from;});
// Avoid crashing on IE's "unspecified error" when in iframes
try {
var focused = document.activeElement;
} catch(e) {}
if (intactLines < (to - from) * .7) display.lineDiv.style.display = "none";
patchDisplay(cm, from, to, intact, positionsChangedFrom);
display.lineDiv.style.display = "";
if (focused && document.activeElement != focused && focused.offsetHeight) focused.focus();
var different = from != display.showingFrom || to != display.showingTo ||
display.lastSizeC != display.wrapper.clientHeight;
// This is just a bogus formula that detects when the editor is
// resized or the font size changes.
if (different) {
display.lastSizeC = display.wrapper.clientHeight;
startWorker(cm, 400);
}
display.showingFrom = from; display.showingTo = to;
var prevBottom = display.lineDiv.offsetTop;
for (var node = display.lineDiv.firstChild, height; node; node = node.nextSibling) if (node.lineObj) {
if (ie_lt8) {
var bot = node.offsetTop + node.offsetHeight;
height = bot - prevBottom;
prevBottom = bot;
} else {
var box = getRect(node);
height = box.bottom - box.top;
}
var diff = node.lineObj.height - height;
if (height < 2) height = textHeight(display);
if (diff > .001 || diff < -.001) {
updateLineHeight(node.lineObj, height);
var widgets = node.lineObj.widgets;
if (widgets) for (var i = 0; i < widgets.length; ++i)
widgets[i].height = widgets[i].node.offsetHeight;
}
}
updateViewOffset(cm);
return true;
}
function updateViewOffset(cm) {
var off = cm.display.viewOffset = heightAtLine(cm, getLine(cm.doc, cm.display.showingFrom));
// Position the mover div to align with the current virtual scroll position
cm.display.mover.style.top = off + "px";
}
function computeIntact(intact, changes) {
for (var i = 0, l = changes.length || 0; i < l; ++i) {
var change = changes[i], intact2 = [], diff = change.diff || 0;
for (var j = 0, l2 = intact.length; j < l2; ++j) {
var range = intact[j];
if (change.to <= range.from && change.diff) {
intact2.push({from: range.from + diff, to: range.to + diff});
} else if (change.to <= range.from || change.from >= range.to) {
intact2.push(range);
} else {
if (change.from > range.from)
intact2.push({from: range.from, to: change.from});
if (change.to < range.to)
intact2.push({from: change.to + diff, to: range.to + diff});
}
}
intact = intact2;
}
return intact;
}
function getDimensions(cm) {
var d = cm.display, left = {}, width = {};
for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
left[cm.options.gutters[i]] = n.offsetLeft;
width[cm.options.gutters[i]] = n.offsetWidth;
}
return {fixedPos: compensateForHScroll(d),
gutterTotalWidth: d.gutters.offsetWidth,
gutterLeft: left,
gutterWidth: width,
wrapperWidth: d.wrapper.clientWidth};
}
function patchDisplay(cm, from, to, intact, updateNumbersFrom) {
var dims = getDimensions(cm);
var display = cm.display, lineNumbers = cm.options.lineNumbers;
if (!intact.length && (!webkit || !cm.display.currentWheelTarget))
removeChildren(display.lineDiv);
var container = display.lineDiv, cur = container.firstChild;
function rm(node) {
var next = node.nextSibling;
if (webkit && mac && cm.display.currentWheelTarget == node) {
node.style.display = "none";
node.lineObj = null;
} else {
node.parentNode.removeChild(node);
}
return next;
}
var nextIntact = intact.shift(), lineN = from;
cm.doc.iter(from, to, function(line) {
if (nextIntact && nextIntact.to == lineN) nextIntact = intact.shift();
if (lineIsHidden(cm.doc, line)) {
if (line.height != 0) updateLineHeight(line, 0);
if (line.widgets && cur.previousSibling) for (var i = 0; i < line.widgets.length; ++i) {
var w = line.widgets[i];
if (w.showIfHidden) {
var prev = cur.previousSibling;
if (/pre/i.test(prev.nodeName)) {
var wrap = elt("div", null, null, "position: relative");
prev.parentNode.replaceChild(wrap, prev);
wrap.appendChild(prev);
prev = wrap;
}
var wnode = prev.appendChild(elt("div", [w.node], "CodeMirror-linewidget"));
if (!w.handleMouseEvents) wnode.ignoreEvents = true;
positionLineWidget(w, wnode, prev, dims);
}
}
} else if (nextIntact && nextIntact.from <= lineN && nextIntact.to > lineN) {
// This line is intact. Skip to the actual node. Update its
// line number if needed.
while (cur.lineObj != line) cur = rm(cur);
if (lineNumbers && updateNumbersFrom <= lineN && cur.lineNumber)
setTextContent(cur.lineNumber, lineNumberFor(cm.options, lineN));
cur = cur.nextSibling;
} else {
// For lines with widgets, make an attempt to find and reuse
// the existing element, so that widgets aren't needlessly
// removed and re-inserted into the dom
if (line.widgets) for (var j = 0, search = cur, reuse; search && j < 20; ++j, search = search.nextSibling)
if (search.lineObj == line && /div/i.test(search.nodeName)) { reuse = search; break; }
// This line needs to be generated.
var lineNode = buildLineElement(cm, line, lineN, dims, reuse);
if (lineNode != reuse) {
container.insertBefore(lineNode, cur);
} else {
while (cur != reuse) cur = rm(cur);
cur = cur.nextSibling;
}
lineNode.lineObj = line;
}
++lineN;
});
while (cur) cur = rm(cur);
}
function buildLineElement(cm, line, lineNo, dims, reuse) {
var lineElement = lineContent(cm, line);
var markers = line.gutterMarkers, display = cm.display, wrap;
if (!cm.options.lineNumbers && !markers && !line.bgClass && !line.wrapClass && !line.widgets)
return lineElement;
// Lines with gutter elements, widgets or a background class need
// to be wrapped again, and have the extra elements added to the
// wrapper div
if (reuse) {
reuse.alignable = null;
var isOk = true, widgetsSeen = 0, insertBefore = null;
for (var n = reuse.firstChild, next; n; n = next) {
next = n.nextSibling;
if (!/\bCodeMirror-linewidget\b/.test(n.className)) {
reuse.removeChild(n);
} else {
for (var i = 0, first = true; i < line.widgets.length; ++i) {
var widget = line.widgets[i];
if (!widget.above) { insertBefore = n; first = false; }
if (widget.node == n.firstChild) {
positionLineWidget(widget, n, reuse, dims);
++widgetsSeen;
break;
}
}
if (i == line.widgets.length) { isOk = false; break; }
}
}
reuse.insertBefore(lineElement, insertBefore);
if (isOk && widgetsSeen == line.widgets.length) {
wrap = reuse;
reuse.className = line.wrapClass || "";
}
}
if (!wrap) {
wrap = elt("div", null, line.wrapClass, "position: relative");
wrap.appendChild(lineElement);
}
// Kludge to make sure the styled element lies behind the selection (by z-index)
if (line.bgClass)
wrap.insertBefore(elt("div", null, line.bgClass + " CodeMirror-linebackground"), wrap.firstChild);
if (cm.options.lineNumbers || markers) {
var gutterWrap = wrap.insertBefore(elt("div", null, null, "position: absolute; left: " +
(cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"),
wrap.firstChild);
if (cm.options.fixedGutter) (wrap.alignable || (wrap.alignable = [])).push(gutterWrap);
if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
wrap.lineNumber = gutterWrap.appendChild(
elt("div", lineNumberFor(cm.options, lineNo),
"CodeMirror-linenumber CodeMirror-gutter-elt",
"left: " + dims.gutterLeft["CodeMirror-linenumbers"] + "px; width: "
+ display.lineNumInnerWidth + "px"));
if (markers)
for (var k = 0; k < cm.options.gutters.length; ++k) {
var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id];
if (found)
gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", "left: " +
dims.gutterLeft[id] + "px; width: " + dims.gutterWidth[id] + "px"));
}
}
if (ie_lt8) wrap.style.zIndex = 2;
if (line.widgets && wrap != reuse) for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget");
if (!widget.handleMouseEvents) node.ignoreEvents = true;
positionLineWidget(widget, node, wrap, dims);
if (widget.above)
wrap.insertBefore(node, cm.options.lineNumbers && line.height != 0 ? gutterWrap : lineElement);
else
wrap.appendChild(node);
signalLater(widget, "redraw");
}
return wrap;
}
function positionLineWidget(widget, node, wrap, dims) {
if (widget.noHScroll) {
(wrap.alignable || (wrap.alignable = [])).push(node);
var width = dims.wrapperWidth;
node.style.left = dims.fixedPos + "px";
if (!widget.coverGutter) {
width -= dims.gutterTotalWidth;
node.style.paddingLeft = dims.gutterTotalWidth + "px";
}
node.style.width = width + "px";
}
if (widget.coverGutter) {
node.style.zIndex = 5;
node.style.position = "relative";
if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px";
}
}
// SELECTION / CURSOR
function updateSelection(cm) {
var display = cm.display;
var collapsed = posEq(cm.doc.sel.from, cm.doc.sel.to);
if (collapsed || cm.options.showCursorWhenSelecting)
updateSelectionCursor(cm);
else
display.cursor.style.display = display.otherCursor.style.display = "none";
if (!collapsed)
updateSelectionRange(cm);
else
display.selectionDiv.style.display = "none";
// Move the hidden textarea near the cursor to prevent scrolling artifacts
if (cm.options.moveInputWithCursor) {
var headPos = cursorCoords(cm, cm.doc.sel.head, "div");
var wrapOff = getRect(display.wrapper), lineOff = getRect(display.lineDiv);
display.inputDiv.style.top = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
headPos.top + lineOff.top - wrapOff.top)) + "px";
display.inputDiv.style.left = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
headPos.left + lineOff.left - wrapOff.left)) + "px";
}
}
// No selection, plain cursor
function updateSelectionCursor(cm) {
var display = cm.display, pos = cursorCoords(cm, cm.doc.sel.head, "div");
display.cursor.style.left = pos.left + "px";
display.cursor.style.top = pos.top + "px";
display.cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px";
display.cursor.style.display = "";
if (pos.other) {
display.otherCursor.style.display = "";
display.otherCursor.style.left = pos.other.left + "px";
display.otherCursor.style.top = pos.other.top + "px";
display.otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px";
} else { display.otherCursor.style.display = "none"; }
}
// Highlight selection
function updateSelectionRange(cm) {
var display = cm.display, doc = cm.doc, sel = cm.doc.sel;
var fragment = document.createDocumentFragment();
var clientWidth = display.lineSpace.offsetWidth, pl = paddingLeft(cm.display);
function add(left, top, width, bottom) {
if (top < 0) top = 0;
fragment.appendChild(elt("div", null, "CodeMirror-selected", "position: absolute; left: " + left +
"px; top: " + top + "px; width: " + (width == null ? clientWidth - left : width) +
"px; height: " + (bottom - top) + "px"));
}
function drawForLine(line, fromArg, toArg) {
var lineObj = getLine(doc, line);
var lineLen = lineObj.text.length;
var start, end;
function coords(ch, bias) {
return charCoords(cm, Pos(line, ch), "div", lineObj, bias);
}
iterateBidiSections(getOrder(lineObj), fromArg || 0, toArg == null ? lineLen : toArg, function(from, to, dir) {
var leftPos = coords(from, "left"), rightPos, left, right;
if (from == to) {
rightPos = leftPos;
left = right = leftPos.left;
} else {
rightPos = coords(to - 1, "right");
if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp; }
left = leftPos.left;
right = rightPos.right;
}
if (fromArg == null && from == 0) left = pl;
if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
add(left, leftPos.top, null, leftPos.bottom);
left = pl;
if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top);
}
if (toArg == null && to == lineLen) right = clientWidth;
if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
start = leftPos;
if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
end = rightPos;
if (left < pl + 1) left = pl;
add(left, rightPos.top, right - left, rightPos.bottom);
});
return {start: start, end: end};
}
if (sel.from.line == sel.to.line) {
drawForLine(sel.from.line, sel.from.ch, sel.to.ch);
} else {
var fromLine = getLine(doc, sel.from.line), toLine = getLine(doc, sel.to.line);
var singleVLine = visualLine(doc, fromLine) == visualLine(doc, toLine);
var leftEnd = drawForLine(sel.from.line, sel.from.ch, singleVLine ? fromLine.text.length : null).end;
var rightStart = drawForLine(sel.to.line, singleVLine ? 0 : null, sel.to.ch).start;
if (singleVLine) {
if (leftEnd.top < rightStart.top - 2) {
add(leftEnd.right, leftEnd.top, null, leftEnd.bottom);
add(pl, rightStart.top, rightStart.left, rightStart.bottom);
} else {
add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom);
}
}
if (leftEnd.bottom < rightStart.top)
add(pl, leftEnd.bottom, null, rightStart.top);
}
removeChildrenAndAdd(display.selectionDiv, fragment);
display.selectionDiv.style.display = "";
}
// Cursor-blinking
function restartBlink(cm) {
if (!cm.state.focused) return;
var display = cm.display;
clearInterval(display.blinker);
var on = true;
display.cursor.style.visibility = display.otherCursor.style.visibility = "";
display.blinker = setInterval(function() {
display.cursor.style.visibility = display.otherCursor.style.visibility = (on = !on) ? "" : "hidden";
}, cm.options.cursorBlinkRate);
}
// HIGHLIGHT WORKER
function startWorker(cm, time) {
if (cm.doc.mode.startState && cm.doc.frontier < cm.display.showingTo)
cm.state.highlight.set(time, bind(highlightWorker, cm));
}
function highlightWorker(cm) {
var doc = cm.doc;
if (doc.frontier < doc.first) doc.frontier = doc.first;
if (doc.frontier >= cm.display.showingTo) return;
var end = +new Date + cm.options.workTime;
var state = copyState(doc.mode, getStateBefore(cm, doc.frontier));
var changed = [], prevChange;
doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.showingTo + 500), function(line) {
if (doc.frontier >= cm.display.showingFrom) { // Visible
var oldStyles = line.styles;
line.styles = highlightLine(cm, line, state);
var ischange = !oldStyles || oldStyles.length != line.styles.length;
for (var i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i];
if (ischange) {
if (prevChange && prevChange.end == doc.frontier) prevChange.end++;
else changed.push(prevChange = {start: doc.frontier, end: doc.frontier + 1});
}
line.stateAfter = copyState(doc.mode, state);
} else {
processLine(cm, line, state);
line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null;
}
++doc.frontier;
if (+new Date > end) {
startWorker(cm, cm.options.workDelay);
return true;
}
});
if (changed.length)
operation(cm, function() {
for (var i = 0; i < changed.length; ++i)
regChange(this, changed[i].start, changed[i].end);
})();
}
// Finds the line to start with when starting a parse. Tries to
// find a line with a stateAfter, so that it can start with a
// valid state. If that fails, it returns the line with the
// smallest indentation, which tends to need the least context to
// parse correctly.
function findStartLine(cm, n, precise) {
var minindent, minline, doc = cm.doc;
for (var search = n, lim = n - 100; search > lim; --search) {
if (search <= doc.first) return doc.first;
var line = getLine(doc, search - 1);
if (line.stateAfter && (!precise || search <= doc.frontier)) return search;
var indented = countColumn(line.text, null, cm.options.tabSize);
if (minline == null || minindent > indented) {
minline = search - 1;
minindent = indented;
}
}
return minline;
}
function getStateBefore(cm, n, precise) {
var doc = cm.doc, display = cm.display;
if (!doc.mode.startState) return true;
var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter;
if (!state) state = startState(doc.mode);
else state = copyState(doc.mode, state);
doc.iter(pos, n, function(line) {
processLine(cm, line, state);
var save = pos == n - 1 || pos % 5 == 0 || pos >= display.showingFrom && pos < display.showingTo;
line.stateAfter = save ? copyState(doc.mode, state) : null;
++pos;
});
return state;
}
// POSITION MEASUREMENT
function paddingTop(display) {return display.lineSpace.offsetTop;}
function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight;}
function paddingLeft(display) {
var e = removeChildrenAndAdd(display.measure, elt("pre", null, null, "text-align: left")).appendChild(elt("span", "x"));
return e.offsetLeft;
}
function measureChar(cm, line, ch, data, bias) {
var dir = -1;
data = data || measureLine(cm, line);
for (var pos = ch;; pos += dir) {
var r = data[pos];
if (r) break;
if (dir < 0 && pos == 0) dir = 1;
}
var rightV = (pos < ch || bias == "right") && r.topRight != null;
return {left: pos < ch ? r.right : r.left,
right: pos > ch ? r.left : r.right,
top: rightV ? r.topRight : r.top,
bottom: rightV ? r.bottomRight : r.bottom};
}
function findCachedMeasurement(cm, line) {
var cache = cm.display.measureLineCache;
for (var i = 0; i < cache.length; ++i) {
var memo = cache[i];
if (memo.text == line.text && memo.markedSpans == line.markedSpans &&
cm.display.scroller.clientWidth == memo.width &&
memo.classes == line.textClass + "|" + line.bgClass + "|" + line.wrapClass)
return memo;
}
}
function clearCachedMeasurement(cm, line) {
var exists = findCachedMeasurement(cm, line);
if (exists) exists.text = exists.measure = exists.markedSpans = null;
}
function measureLine(cm, line) {
// First look in the cache
var cached = findCachedMeasurement(cm, line);
if (cached) return cached.measure;
// Failing that, recompute and store result in cache
var measure = measureLineInner(cm, line);
var cache = cm.display.measureLineCache;
var memo = {text: line.text, width: cm.display.scroller.clientWidth,
markedSpans: line.markedSpans, measure: measure,
classes: line.textClass + "|" + line.bgClass + "|" + line.wrapClass};
if (cache.length == 16) cache[++cm.display.measureLineCachePos % 16] = memo;
else cache.push(memo);
return measure;
}
function measureLineInner(cm, line) {
var display = cm.display, measure = emptyArray(line.text.length);
var pre = lineContent(cm, line, measure);
// IE does not cache element positions of inline elements between
// calls to getBoundingClientRect. This makes the loop below,
// which gathers the positions of all the characters on the line,
// do an amount of layout work quadratic to the number of
// characters. When line wrapping is off, we try to improve things
// by first subdividing the line into a bunch of inline blocks, so
// that IE can reuse most of the layout information from caches
// for those blocks. This does interfere with line wrapping, so it
// doesn't work when wrapping is on, but in that case the
// situation is slightly better, since IE does cache line-wrapping
// information and only recomputes per-line.
if (ie && !ie_lt8 && !cm.options.lineWrapping && pre.childNodes.length > 100) {
var fragment = document.createDocumentFragment();
var chunk = 10, n = pre.childNodes.length;
for (var i = 0, chunks = Math.ceil(n / chunk); i < chunks; ++i) {
var wrap = elt("div", null, null, "display: inline-block");
for (var j = 0; j < chunk && n; ++j) {
wrap.appendChild(pre.firstChild);
--n;
}
fragment.appendChild(wrap);
}
pre.appendChild(fragment);
}
removeChildrenAndAdd(display.measure, pre);
var outer = getRect(display.lineDiv);
var vranges = [], data = emptyArray(line.text.length), maxBot = pre.offsetHeight;
// Work around an IE7/8 bug where it will sometimes have randomly
// replaced our pre with a clone at this point.
if (ie_lt9 && display.measure.first != pre)
removeChildrenAndAdd(display.measure, pre);
function categorizeVSpan(top, bot) {
if (bot > maxBot) bot = maxBot;
if (top < 0) top = 0;
for (var j = 0; j < vranges.length; j += 2) {
var rtop = vranges[j], rbot = vranges[j+1];
if (rtop > bot || rbot < top) continue;
if (rtop <= top && rbot >= bot ||
top <= rtop && bot >= rbot ||
Math.min(bot, rbot) - Math.max(top, rtop) >= (bot - top) >> 1) {
vranges[j] = Math.min(top, rtop);
vranges[j+1] = Math.max(bot, rbot);
return j;
}
}
vranges.push(top, bot);
return j;
}
for (var i = 0, cur; i < measure.length; ++i) if (cur = measure[i]) {
var size, node = cur;
// A widget might wrap, needs special care
if (/\bCodeMirror-widget\b/.test(cur.className) && cur.getClientRects) {
if (cur.firstChild.nodeType == 1) node = cur.firstChild;
var rects = node.getClientRects(), rLeft = rects[0], rRight = rects[rects.length - 1];
if (rects.length > 1) {
var vCatLeft = categorizeVSpan(rLeft.top - outer.top, rLeft.bottom - outer.top);
var vCatRight = categorizeVSpan(rRight.top - outer.top, rRight.bottom - outer.top);
data[i] = {left: rLeft.left - outer.left, right: rRight.right - outer.left,
top: vCatLeft, topRight: vCatRight};
continue;
}
}
size = getRect(node);
var vCat = categorizeVSpan(size.top - outer.top, size.bottom - outer.top);
var right = size.right;
if (cur.measureRight) right = getRect(cur.measureRight).left;
data[i] = {left: size.left - outer.left, right: right - outer.left, top: vCat};
}
for (var i = 0, cur; i < data.length; ++i) if (cur = data[i]) {
var vr = cur.top, vrRight = cur.topRight;
cur.top = vranges[vr]; cur.bottom = vranges[vr+1];
if (vrRight != null) { cur.topRight = vranges[vrRight]; cur.bottomRight = vranges[vrRight+1]; }
}
return data;
}
function measureLineWidth(cm, line) {
var hasBadSpan = false;
if (line.markedSpans) for (var i = 0; i < line.markedSpans; ++i) {
var sp = line.markedSpans[i];
if (sp.collapsed && (sp.to == null || sp.to == line.text.length)) hasBadSpan = true;
}
var cached = !hasBadSpan && findCachedMeasurement(cm, line);
if (cached) return measureChar(cm, line, line.text.length, cached.measure, "right").right;
var pre = lineContent(cm, line);
var end = pre.appendChild(zeroWidthElement(cm.display.measure));
removeChildrenAndAdd(cm.display.measure, pre);
return getRect(end).right - getRect(cm.display.lineDiv).left;
}
function clearCaches(cm) {
cm.display.measureLineCache.length = cm.display.measureLineCachePos = 0;
cm.display.cachedCharWidth = cm.display.cachedTextHeight = null;
if (!cm.options.lineWrapping) cm.display.maxLineChanged = true;
cm.display.lineNumChars = null;
}
function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft; }
function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop; }
// Context is one of "line", "div" (display.lineDiv), "local"/null (editor), or "page"
function intoCoordSystem(cm, lineObj, rect, context) {
if (lineObj.widgets) for (var i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
var size = widgetHeight(lineObj.widgets[i]);
rect.top += size; rect.bottom += size;
}
if (context == "line") return rect;
if (!context) context = "local";
var yOff = heightAtLine(cm, lineObj);
if (context == "local") yOff += paddingTop(cm.display);
else yOff -= cm.display.viewOffset;
if (context == "page" || context == "window") {
var lOff = getRect(cm.display.lineSpace);
yOff += lOff.top + (context == "window" ? 0 : pageScrollY());
var xOff = lOff.left + (context == "window" ? 0 : pageScrollX());
rect.left += xOff; rect.right += xOff;
}
rect.top += yOff; rect.bottom += yOff;
return rect;
}
// Context may be "window", "page", "div", or "local"/null
// Result is in "div" coords
function fromCoordSystem(cm, coords, context) {
if (context == "div") return coords;
var left = coords.left, top = coords.top;
// First move into "page" coordinate system
if (context == "page") {
left -= pageScrollX();
top -= pageScrollY();
} else if (context == "local" || !context) {
var localBox = getRect(cm.display.sizer);
left += localBox.left;
top += localBox.top;
}
var lineSpaceBox = getRect(cm.display.lineSpace);
return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top};
}
function charCoords(cm, pos, context, lineObj, bias) {
if (!lineObj) lineObj = getLine(cm.doc, pos.line);
return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, null, bias), context);
}
function cursorCoords(cm, pos, context, lineObj, measurement) {
lineObj = lineObj || getLine(cm.doc, pos.line);
if (!measurement) measurement = measureLine(cm, lineObj);
function get(ch, right) {
var m = measureChar(cm, lineObj, ch, measurement, right ? "right" : "left");
if (right) m.left = m.right; else m.right = m.left;
return intoCoordSystem(cm, lineObj, m, context);
}
function getBidi(ch, partPos) {
var part = order[partPos], right = part.level % 2;
if (ch == bidiLeft(part) && partPos && part.level < order[partPos - 1].level) {
part = order[--partPos];
ch = bidiRight(part) - (part.level % 2 ? 0 : 1);
right = true;
} else if (ch == bidiRight(part) && partPos < order.length - 1 && part.level < order[partPos + 1].level) {
part = order[++partPos];
ch = bidiLeft(part) - part.level % 2;
right = false;
}
if (right && ch == part.to && ch > part.from) return get(ch - 1);
return get(ch, right);
}
var order = getOrder(lineObj), ch = pos.ch;
if (!order) return get(ch);
var partPos = getBidiPartAt(order, ch);
var val = getBidi(ch, partPos);
if (bidiOther != null) val.other = getBidi(ch, bidiOther);
return val;
}
function PosWithInfo(line, ch, outside, xRel) {
var pos = new Pos(line, ch);
pos.xRel = xRel;
if (outside) pos.outside = true;
return pos;
}
// Coords must be lineSpace-local
function coordsChar(cm, x, y) {
var doc = cm.doc;
y += cm.display.viewOffset;
if (y < 0) return PosWithInfo(doc.first, 0, true, -1);
var lineNo = lineAtHeight(doc, y), last = doc.first + doc.size - 1;
if (lineNo > last)
return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, true, 1);
if (x < 0) x = 0;
for (;;) {
var lineObj = getLine(doc, lineNo);
var found = coordsCharInner(cm, lineObj, lineNo, x, y);
var merged = collapsedSpanAtEnd(lineObj);
var mergedPos = merged && merged.find();
if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
lineNo = mergedPos.to.line;
else
return found;
}
}
function coordsCharInner(cm, lineObj, lineNo, x, y) {
var innerOff = y - heightAtLine(cm, lineObj);
var wrongLine = false, adjust = 2 * cm.display.wrapper.clientWidth;
var measurement = measureLine(cm, lineObj);
function getX(ch) {
var sp = cursorCoords(cm, Pos(lineNo, ch), "line",
lineObj, measurement);
wrongLine = true;
if (innerOff > sp.bottom) return sp.left - adjust;
else if (innerOff < sp.top) return sp.left + adjust;
else wrongLine = false;
return sp.left;
}
var bidi = getOrder(lineObj), dist = lineObj.text.length;
var from = lineLeft(lineObj), to = lineRight(lineObj);
var fromX = getX(from), fromOutside = wrongLine, toX = getX(to), toOutside = wrongLine;
if (x > toX) return PosWithInfo(lineNo, to, toOutside, 1);
// Do a binary search between these bounds.
for (;;) {
if (bidi ? to == from || to == moveVisually(lineObj, from, 1) : to - from <= 1) {
var ch = x < fromX || x - fromX <= toX - x ? from : to;
var xDiff = x - (ch == from ? fromX : toX);
while (isExtendingChar.test(lineObj.text.charAt(ch))) ++ch;
var pos = PosWithInfo(lineNo, ch, ch == from ? fromOutside : toOutside,
xDiff < 0 ? -1 : xDiff ? 1 : 0);
return pos;
}
var step = Math.ceil(dist / 2), middle = from + step;
if (bidi) {
middle = from;
for (var i = 0; i < step; ++i) middle = moveVisually(lineObj, middle, 1);
}
var middleX = getX(middle);
if (middleX > x) {to = middle; toX = middleX; if (toOutside = wrongLine) toX += 1000; dist = step;}
else {from = middle; fromX = middleX; fromOutside = wrongLine; dist -= step;}
}
}
var measureText;
function textHeight(display) {
if (display.cachedTextHeight != null) return display.cachedTextHeight;
if (measureText == null) {
measureText = elt("pre");
// Measure a bunch of lines, for browsers that compute
// fractional heights.
for (var i = 0; i < 49; ++i) {
measureText.appendChild(document.createTextNode("x"));
measureText.appendChild(elt("br"));
}
measureText.appendChild(document.createTextNode("x"));
}
removeChildrenAndAdd(display.measure, measureText);
var height = measureText.offsetHeight / 50;
if (height > 3) display.cachedTextHeight = height;
removeChildren(display.measure);
return height || 1;
}
function charWidth(display) {
if (display.cachedCharWidth != null) return display.cachedCharWidth;
var anchor = elt("span", "x");
var pre = elt("pre", [anchor]);
removeChildrenAndAdd(display.measure, pre);
var width = anchor.offsetWidth;
if (width > 2) display.cachedCharWidth = width;
return width || 10;
}
// OPERATIONS
// Operations are used to wrap changes in such a way that each
// change won't have to update the cursor and display (which would
// be awkward, slow, and error-prone), but instead updates are
// batched and then all combined and executed at once.
var nextOpId = 0;
function startOperation(cm) {
cm.curOp = {
// An array of ranges of lines that have to be updated. See
// updateDisplay.
changes: [],
updateInput: null,
userSelChange: null,
textChanged: null,
selectionChanged: false,
cursorActivity: false,
updateMaxLine: false,
updateScrollPos: false,
id: ++nextOpId
};
if (!delayedCallbackDepth++) delayedCallbacks = [];
}
function endOperation(cm) {
var op = cm.curOp, doc = cm.doc, display = cm.display;
cm.curOp = null;
if (op.updateMaxLine) computeMaxLength(cm);
if (display.maxLineChanged && !cm.options.lineWrapping && display.maxLine) {
var width = measureLineWidth(cm, display.maxLine);
display.sizer.style.minWidth = Math.max(0, width + 3 + scrollerCutOff) + "px";
display.maxLineChanged = false;
var maxScrollLeft = Math.max(0, display.sizer.offsetLeft + display.sizer.offsetWidth - display.scroller.clientWidth);
if (maxScrollLeft < doc.scrollLeft && !op.updateScrollPos)
setScrollLeft(cm, Math.min(display.scroller.scrollLeft, maxScrollLeft), true);
}
var newScrollPos, updated;
if (op.updateScrollPos) {
newScrollPos = op.updateScrollPos;
} else if (op.selectionChanged && display.scroller.clientHeight) { // don't rescroll if not visible
var coords = cursorCoords(cm, doc.sel.head);
newScrollPos = calculateScrollPos(cm, coords.left, coords.top, coords.left, coords.bottom);
}
if (op.changes.length || newScrollPos && newScrollPos.scrollTop != null) {
updated = updateDisplay(cm, op.changes, newScrollPos && newScrollPos.scrollTop);
if (cm.display.scroller.offsetHeight) cm.doc.scrollTop = cm.display.scroller.scrollTop;
}
if (!updated && op.selectionChanged) updateSelection(cm);
if (op.updateScrollPos) {
display.scroller.scrollTop = display.scrollbarV.scrollTop = doc.scrollTop = newScrollPos.scrollTop;
display.scroller.scrollLeft = display.scrollbarH.scrollLeft = doc.scrollLeft = newScrollPos.scrollLeft;
alignHorizontally(cm);
if (op.scrollToPos)
scrollPosIntoView(cm, clipPos(cm.doc, op.scrollToPos), op.scrollToPosMargin);
} else if (newScrollPos) {
scrollCursorIntoView(cm);
}
if (op.selectionChanged) restartBlink(cm);
if (cm.state.focused && op.updateInput)
resetInput(cm, op.userSelChange);
var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers;
if (hidden) for (var i = 0; i < hidden.length; ++i)
if (!hidden[i].lines.length) signal(hidden[i], "hide");
if (unhidden) for (var i = 0; i < unhidden.length; ++i)
if (unhidden[i].lines.length) signal(unhidden[i], "unhide");
var delayed;
if (!--delayedCallbackDepth) {
delayed = delayedCallbacks;
delayedCallbacks = null;
}
if (op.textChanged)
signal(cm, "change", cm, op.textChanged);
if (op.cursorActivity) signal(cm, "cursorActivity", cm);
if (delayed) for (var i = 0; i < delayed.length; ++i) delayed[i]();
}
// Wraps a function in an operation. Returns the wrapped function.
function operation(cm1, f) {
return function() {
var cm = cm1 || this, withOp = !cm.curOp;
if (withOp) startOperation(cm);
try { var result = f.apply(cm, arguments); }
finally { if (withOp) endOperation(cm); }
return result;
};
}
function docOperation(f) {
return function() {
var withOp = this.cm && !this.cm.curOp, result;
if (withOp) startOperation(this.cm);
try { result = f.apply(this, arguments); }
finally { if (withOp) endOperation(this.cm); }
return result;
};
}
function runInOp(cm, f) {
var withOp = !cm.curOp, result;
if (withOp) startOperation(cm);
try { result = f(); }
finally { if (withOp) endOperation(cm); }
return result;
}
function regChange(cm, from, to, lendiff) {
if (from == null) from = cm.doc.first;
if (to == null) to = cm.doc.first + cm.doc.size;
cm.curOp.changes.push({from: from, to: to, diff: lendiff});
}
// INPUT HANDLING
function slowPoll(cm) {
if (cm.display.pollingFast) return;
cm.display.poll.set(cm.options.pollInterval, function() {
readInput(cm);
if (cm.state.focused) slowPoll(cm);
});
}
function fastPoll(cm) {
var missed = false;
cm.display.pollingFast = true;
function p() {
var changed = readInput(cm);
if (!changed && !missed) {missed = true; cm.display.poll.set(60, p);}
else {cm.display.pollingFast = false; slowPoll(cm);}
}
cm.display.poll.set(20, p);
}
// prevInput is a hack to work with IME. If we reset the textarea
// on every change, that breaks IME. So we look for changes
// compared to the previous content instead. (Modern browsers have
// events that indicate IME taking place, but these are not widely
// supported or compatible enough yet to rely on.)
function readInput(cm) {
var input = cm.display.input, prevInput = cm.display.prevInput, doc = cm.doc, sel = doc.sel;
if (!cm.state.focused || hasSelection(input) || isReadOnly(cm) || cm.state.disableInput) return false;
var text = input.value;
if (text == prevInput && posEq(sel.from, sel.to)) return false;
if (ie && !ie_lt9 && cm.display.inputHasSelection === text) {
resetInput(cm, true);
return false;
}
var withOp = !cm.curOp;
if (withOp) startOperation(cm);
sel.shift = false;
var same = 0, l = Math.min(prevInput.length, text.length);
while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same;
var from = sel.from, to = sel.to;
if (same < prevInput.length)
from = Pos(from.line, from.ch - (prevInput.length - same));
else if (cm.state.overwrite && posEq(from, to) && !cm.state.pasteIncoming)
to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + (text.length - same)));
var updateInput = cm.curOp.updateInput;
var changeEvent = {from: from, to: to, text: splitLines(text.slice(same)),
origin: cm.state.pasteIncoming ? "paste" : "+input"};
makeChange(cm.doc, changeEvent, "end");
cm.curOp.updateInput = updateInput;
signalLater(cm, "inputRead", cm, changeEvent);
if (text.length > 1000 || text.indexOf("\n") > -1) input.value = cm.display.prevInput = "";
else cm.display.prevInput = text;
if (withOp) endOperation(cm);
cm.state.pasteIncoming = false;
return true;
}
function resetInput(cm, user) {
var minimal, selected, doc = cm.doc;
if (!posEq(doc.sel.from, doc.sel.to)) {
cm.display.prevInput = "";
minimal = hasCopyEvent &&
(doc.sel.to.line - doc.sel.from.line > 100 || (selected = cm.getSelection()).length > 1000);
var content = minimal ? "-" : selected || cm.getSelection();
cm.display.input.value = content;
if (cm.state.focused) selectInput(cm.display.input);
if (ie && !ie_lt9) cm.display.inputHasSelection = content;
} else if (user) {
cm.display.prevInput = cm.display.input.value = "";
if (ie && !ie_lt9) cm.display.inputHasSelection = null;
}
cm.display.inaccurateSelection = minimal;
}
function focusInput(cm) {
if (cm.options.readOnly != "nocursor" && (!mobile || document.activeElement != cm.display.input))
cm.display.input.focus();
}
function isReadOnly(cm) {
return cm.options.readOnly || cm.doc.cantEdit;
}
// EVENT HANDLERS
function registerEventHandlers(cm) {
var d = cm.display;
on(d.scroller, "mousedown", operation(cm, onMouseDown));
if (ie)
on(d.scroller, "dblclick", operation(cm, function(e) {
if (signalDOMEvent(cm, e)) return;
var pos = posFromMouse(cm, e);
if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return;
e_preventDefault(e);
var word = findWordAt(getLine(cm.doc, pos.line).text, pos);
extendSelection(cm.doc, word.from, word.to);
}));
else
on(d.scroller, "dblclick", function(e) { signalDOMEvent(cm, e) || e_preventDefault(e); });
on(d.lineSpace, "selectstart", function(e) {
if (!eventInWidget(d, e)) e_preventDefault(e);
});
// Gecko browsers fire contextmenu *after* opening the menu, at
// which point we can't mess with it anymore. Context menu is
// handled in onMouseDown for Gecko.
if (!captureMiddleClick) on(d.scroller, "contextmenu", function(e) {onContextMenu(cm, e);});
on(d.scroller, "scroll", function() {
if (d.scroller.clientHeight) {
setScrollTop(cm, d.scroller.scrollTop);
setScrollLeft(cm, d.scroller.scrollLeft, true);
signal(cm, "scroll", cm);
}
});
on(d.scrollbarV, "scroll", function() {
if (d.scroller.clientHeight) setScrollTop(cm, d.scrollbarV.scrollTop);
});
on(d.scrollbarH, "scroll", function() {
if (d.scroller.clientHeight) setScrollLeft(cm, d.scrollbarH.scrollLeft);
});
on(d.scroller, "mousewheel", function(e){onScrollWheel(cm, e);});
on(d.scroller, "DOMMouseScroll", function(e){onScrollWheel(cm, e);});
function reFocus() { if (cm.state.focused) setTimeout(bind(focusInput, cm), 0); }
on(d.scrollbarH, "mousedown", reFocus);
on(d.scrollbarV, "mousedown", reFocus);
// Prevent wrapper from ever scrolling
on(d.wrapper, "scroll", function() { d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; });
var resizeTimer;
function onResize() {
if (resizeTimer == null) resizeTimer = setTimeout(function() {
resizeTimer = null;
// Might be a text scaling operation, clear size caches.
d.cachedCharWidth = d.cachedTextHeight = knownScrollbarWidth = null;
clearCaches(cm);
runInOp(cm, bind(regChange, cm));
}, 100);
}
on(window, "resize", onResize);
// Above handler holds on to the editor and its data structures.
// Here we poll to unregister it when the editor is no longer in
// the document, so that it can be garbage-collected.
function unregister() {
for (var p = d.wrapper.parentNode; p && p != document.body; p = p.parentNode) {}
if (p) setTimeout(unregister, 5000);
else off(window, "resize", onResize);
}
setTimeout(unregister, 5000);
on(d.input, "keyup", operation(cm, function(e) {
if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return;
if (e.keyCode == 16) cm.doc.sel.shift = false;
}));
on(d.input, "input", bind(fastPoll, cm));
on(d.input, "keydown", operation(cm, onKeyDown));
on(d.input, "keypress", operation(cm, onKeyPress));
on(d.input, "focus", bind(onFocus, cm));
on(d.input, "blur", bind(onBlur, cm));
function drag_(e) {
if (signalDOMEvent(cm, e) || cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e))) return;
e_stop(e);
}
if (cm.options.dragDrop) {
on(d.scroller, "dragstart", function(e){onDragStart(cm, e);});
on(d.scroller, "dragenter", drag_);
on(d.scroller, "dragover", drag_);
on(d.scroller, "drop", operation(cm, onDrop));
}
on(d.scroller, "paste", function(e){
if (eventInWidget(d, e)) return;
focusInput(cm);
fastPoll(cm);
});
on(d.input, "paste", function() {
cm.state.pasteIncoming = true;
fastPoll(cm);
});
function prepareCopy() {
if (d.inaccurateSelection) {
d.prevInput = "";
d.inaccurateSelection = false;
d.input.value = cm.getSelection();
selectInput(d.input);
}
}
on(d.input, "cut", prepareCopy);
on(d.input, "copy", prepareCopy);
// Needed to handle Tab key in KHTML
if (khtml) on(d.sizer, "mouseup", function() {
if (document.activeElement == d.input) d.input.blur();
focusInput(cm);
});
}
function eventInWidget(display, e) {
for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
if (!n || n.ignoreEvents || n.parentNode == display.sizer && n != display.mover) return true;
}
}
function posFromMouse(cm, e, liberal) {
var display = cm.display;
if (!liberal) {
var target = e_target(e);
if (target == display.scrollbarH || target == display.scrollbarH.firstChild ||
target == display.scrollbarV || target == display.scrollbarV.firstChild ||
target == display.scrollbarFiller || target == display.gutterFiller) return null;
}
var x, y, space = getRect(display.lineSpace);
// Fails unpredictably on IE[67] when mouse is dragged around quickly.
try { x = e.clientX; y = e.clientY; } catch (e) { return null; }
return coordsChar(cm, x - space.left, y - space.top);
}
var lastClick, lastDoubleClick;
function onMouseDown(e) {
if (signalDOMEvent(this, e)) return;
var cm = this, display = cm.display, doc = cm.doc, sel = doc.sel;
sel.shift = e.shiftKey;
if (eventInWidget(display, e)) {
if (!webkit) {
display.scroller.draggable = false;
setTimeout(function(){display.scroller.draggable = true;}, 100);
}
return;
}
if (clickInGutter(cm, e)) return;
var start = posFromMouse(cm, e);
switch (e_button(e)) {
case 3:
if (captureMiddleClick) onContextMenu.call(cm, cm, e);
return;
case 2:
if (start) extendSelection(cm.doc, start);
setTimeout(bind(focusInput, cm), 20);
e_preventDefault(e);
return;
}
// For button 1, if it was clicked inside the editor
// (posFromMouse returning non-null), we have to adjust the
// selection.
if (!start) {if (e_target(e) == display.scroller) e_preventDefault(e); return;}
if (!cm.state.focused) onFocus(cm);
var now = +new Date, type = "single";
if (lastDoubleClick && lastDoubleClick.time > now - 400 && posEq(lastDoubleClick.pos, start)) {
type = "triple";
e_preventDefault(e);
setTimeout(bind(focusInput, cm), 20);
selectLine(cm, start.line);
} else if (lastClick && lastClick.time > now - 400 && posEq(lastClick.pos, start)) {
type = "double";
lastDoubleClick = {time: now, pos: start};
e_preventDefault(e);
var word = findWordAt(getLine(doc, start.line).text, start);
extendSelection(cm.doc, word.from, word.to);
} else { lastClick = {time: now, pos: start}; }
var last = start;
if (cm.options.dragDrop && dragAndDrop && !isReadOnly(cm) && !posEq(sel.from, sel.to) &&
!posLess(start, sel.from) && !posLess(sel.to, start) && type == "single") {
var dragEnd = operation(cm, function(e2) {
if (webkit) display.scroller.draggable = false;
cm.state.draggingText = false;
off(document, "mouseup", dragEnd);
off(display.scroller, "drop", dragEnd);
if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
e_preventDefault(e2);
extendSelection(cm.doc, start);
focusInput(cm);
}
});
// Let the drag handler handle this.
if (webkit) display.scroller.draggable = true;
cm.state.draggingText = dragEnd;
// IE's approach to draggable
if (display.scroller.dragDrop) display.scroller.dragDrop();
on(document, "mouseup", dragEnd);
on(display.scroller, "drop", dragEnd);
return;
}
e_preventDefault(e);
if (type == "single") extendSelection(cm.doc, clipPos(doc, start));
var startstart = sel.from, startend = sel.to, lastPos = start;
function doSelect(cur) {
if (posEq(lastPos, cur)) return;
lastPos = cur;
if (type == "single") {
extendSelection(cm.doc, clipPos(doc, start), cur);
return;
}
startstart = clipPos(doc, startstart);
startend = clipPos(doc, startend);
if (type == "double") {
var word = findWordAt(getLine(doc, cur.line).text, cur);
if (posLess(cur, startstart)) extendSelection(cm.doc, word.from, startend);
else extendSelection(cm.doc, startstart, word.to);
} else if (type == "triple") {
if (posLess(cur, startstart)) extendSelection(cm.doc, startend, clipPos(doc, Pos(cur.line, 0)));
else extendSelection(cm.doc, startstart, clipPos(doc, Pos(cur.line + 1, 0)));
}
}
var editorSize = getRect(display.wrapper);
// Used to ensure timeout re-tries don't fire when another extend
// happened in the meantime (clearTimeout isn't reliable -- at
// least on Chrome, the timeouts still happen even when cleared,
// if the clear happens after their scheduled firing time).
var counter = 0;
function extend(e) {
var curCount = ++counter;
var cur = posFromMouse(cm, e, true);
if (!cur) return;
if (!posEq(cur, last)) {
if (!cm.state.focused) onFocus(cm);
last = cur;
doSelect(cur);
var visible = visibleLines(display, doc);
if (cur.line >= visible.to || cur.line < visible.from)
setTimeout(operation(cm, function(){if (counter == curCount) extend(e);}), 150);
} else {
var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0;
if (outside) setTimeout(operation(cm, function() {
if (counter != curCount) return;
display.scroller.scrollTop += outside;
extend(e);
}), 50);
}
}
function done(e) {
counter = Infinity;
e_preventDefault(e);
focusInput(cm);
off(document, "mousemove", move);
off(document, "mouseup", up);
}
var move = operation(cm, function(e) {
if (!ie && !e_button(e)) done(e);
else extend(e);
});
var up = operation(cm, done);
on(document, "mousemove", move);
on(document, "mouseup", up);
}
function clickInGutter(cm, e) {
var display = cm.display;
try { var mX = e.clientX, mY = e.clientY; }
catch(e) { return false; }
if (mX >= Math.floor(getRect(display.gutters).right)) return false;
e_preventDefault(e);
if (!hasHandler(cm, "gutterClick")) return true;
var lineBox = getRect(display.lineDiv);
if (mY > lineBox.bottom) return true;
mY -= lineBox.top - display.viewOffset;
for (var i = 0; i < cm.options.gutters.length; ++i) {
var g = display.gutters.childNodes[i];
if (g && getRect(g).right >= mX) {
var line = lineAtHeight(cm.doc, mY);
var gutter = cm.options.gutters[i];
signalLater(cm, "gutterClick", cm, line, gutter, e);
break;
}
}
return true;
}
// Kludge to work around strange IE behavior where it'll sometimes
// re-fire a series of drag-related events right after the drop (#1551)
var lastDrop = 0;
function onDrop(e) {
var cm = this;
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e) || (cm.options.onDragEvent && cm.options.onDragEvent(cm, addStop(e))))
return;
e_preventDefault(e);
if (ie) lastDrop = +new Date;
var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files;
if (!pos || isReadOnly(cm)) return;
if (files && files.length && window.FileReader && window.File) {
var n = files.length, text = Array(n), read = 0;
var loadFile = function(file, i) {
var reader = new FileReader;
reader.onload = function() {
text[i] = reader.result;
if (++read == n) {
pos = clipPos(cm.doc, pos);
makeChange(cm.doc, {from: pos, to: pos, text: splitLines(text.join("\n")), origin: "paste"}, "around");
}
};
reader.readAsText(file);
};
for (var i = 0; i < n; ++i) loadFile(files[i], i);
} else {
// Don't do a replace if the drop happened inside of the selected text.
if (cm.state.draggingText && !(posLess(pos, cm.doc.sel.from) || posLess(cm.doc.sel.to, pos))) {
cm.state.draggingText(e);
// Ensure the editor is re-focused
setTimeout(bind(focusInput, cm), 20);
return;
}
try {
var text = e.dataTransfer.getData("Text");
if (text) {
var curFrom = cm.doc.sel.from, curTo = cm.doc.sel.to;
setSelection(cm.doc, pos, pos);
if (cm.state.draggingText) replaceRange(cm.doc, "", curFrom, curTo, "paste");
cm.replaceSelection(text, null, "paste");
focusInput(cm);
onFocus(cm);
}
}
catch(e){}
}
}
function onDragStart(cm, e) {
if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return; }
if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return;
var txt = cm.getSelection();
e.dataTransfer.setData("Text", txt);
// Use dummy image instead of default browsers image.
// Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
if (e.dataTransfer.setDragImage && !safari) {
var img = elt("img", null, null, "position: fixed; left: 0; top: 0;");
if (opera) {
img.width = img.height = 1;
cm.display.wrapper.appendChild(img);
// Force a relayout, or Opera won't use our image for some obscure reason
img._top = img.offsetTop;
}
e.dataTransfer.setDragImage(img, 0, 0);
if (opera) img.parentNode.removeChild(img);
}
}
function setScrollTop(cm, val) {
if (Math.abs(cm.doc.scrollTop - val) < 2) return;
cm.doc.scrollTop = val;
if (!gecko) updateDisplay(cm, [], val);
if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val;
if (cm.display.scrollbarV.scrollTop != val) cm.display.scrollbarV.scrollTop = val;
if (gecko) updateDisplay(cm, []);
startWorker(cm, 100);
}
function setScrollLeft(cm, val, isScroller) {
if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return;
val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth);
cm.doc.scrollLeft = val;
alignHorizontally(cm);
if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val;
if (cm.display.scrollbarH.scrollLeft != val) cm.display.scrollbarH.scrollLeft = val;
}
// Since the delta values reported on mouse wheel events are
// unstandardized between browsers and even browser versions, and
// generally horribly unpredictable, this code starts by measuring
// the scroll effect that the first few mouse wheel events have,
// and, from that, detects the way it can convert deltas to pixel
// offsets afterwards.
//
// The reason we want to know the amount a wheel event will scroll
// is that it gives us a chance to update the display before the
// actual scrolling happens, reducing flickering.
var wheelSamples = 0, wheelPixelsPerUnit = null;
// Fill in a browser-detected starting value on browsers where we
// know one. These don't have to be accurate -- the result of them
// being wrong would just be a slight flicker on the first wheel
// scroll (if it is large enough).
if (ie) wheelPixelsPerUnit = -.53;
else if (gecko) wheelPixelsPerUnit = 15;
else if (chrome) wheelPixelsPerUnit = -.7;
else if (safari) wheelPixelsPerUnit = -1/3;
function onScrollWheel(cm, e) {
var dx = e.wheelDeltaX, dy = e.wheelDeltaY;
if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail;
if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail;
else if (dy == null) dy = e.wheelDelta;
var display = cm.display, scroll = display.scroller;
// Quit if there's nothing to scroll here
if (!(dx && scroll.scrollWidth > scroll.clientWidth ||
dy && scroll.scrollHeight > scroll.clientHeight)) return;
// Webkit browsers on OS X abort momentum scrolls when the target
// of the scroll event is removed from the scrollable element.
// This hack (see related code in patchDisplay) makes sure the
// element is kept around.
if (dy && mac && webkit) {
for (var cur = e.target; cur != scroll; cur = cur.parentNode) {
if (cur.lineObj) {
cm.display.currentWheelTarget = cur;
break;
}
}
}
// On some browsers, horizontal scrolling will cause redraws to
// happen before the gutter has been realigned, causing it to
// wriggle around in a most unseemly way. When we have an
// estimated pixels/delta value, we just handle horizontal
// scrolling entirely here. It'll be slightly off from native, but
// better than glitching out.
if (dx && !gecko && !opera && wheelPixelsPerUnit != null) {
if (dy)
setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)));
setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)));
e_preventDefault(e);
display.wheelStartX = null; // Abort measurement, if in progress
return;
}
if (dy && wheelPixelsPerUnit != null) {
var pixels = dy * wheelPixelsPerUnit;
var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight;
if (pixels < 0) top = Math.max(0, top + pixels - 50);
else bot = Math.min(cm.doc.height, bot + pixels + 50);
updateDisplay(cm, [], {top: top, bottom: bot});
}
if (wheelSamples < 20) {
if (display.wheelStartX == null) {
display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop;
display.wheelDX = dx; display.wheelDY = dy;
setTimeout(function() {
if (display.wheelStartX == null) return;
var movedX = scroll.scrollLeft - display.wheelStartX;
var movedY = scroll.scrollTop - display.wheelStartY;
var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
(movedX && display.wheelDX && movedX / display.wheelDX);
display.wheelStartX = display.wheelStartY = null;
if (!sample) return;
wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1);
++wheelSamples;
}, 200);
} else {
display.wheelDX += dx; display.wheelDY += dy;
}
}
}
function doHandleBinding(cm, bound, dropShift) {
if (typeof bound == "string") {
bound = commands[bound];
if (!bound) return false;
}
// Ensure previous input has been read, so that the handler sees a
// consistent view of the document
if (cm.display.pollingFast && readInput(cm)) cm.display.pollingFast = false;
var doc = cm.doc, prevShift = doc.sel.shift, done = false;
try {
if (isReadOnly(cm)) cm.state.suppressEdits = true;
if (dropShift) doc.sel.shift = false;
done = bound(cm) != Pass;
} finally {
doc.sel.shift = prevShift;
cm.state.suppressEdits = false;
}
return done;
}
function allKeyMaps(cm) {
var maps = cm.state.keyMaps.slice(0);
if (cm.options.extraKeys) maps.push(cm.options.extraKeys);
maps.push(cm.options.keyMap);
return maps;
}
var maybeTransition;
function handleKeyBinding(cm, e) {
// Handle auto keymap transitions
var startMap = getKeyMap(cm.options.keyMap), next = startMap.auto;
clearTimeout(maybeTransition);
if (next && !isModifierKey(e)) maybeTransition = setTimeout(function() {
if (getKeyMap(cm.options.keyMap) == startMap) {
cm.options.keyMap = (next.call ? next.call(null, cm) : next);
keyMapChanged(cm);
}
}, 50);
var name = keyName(e, true), handled = false;
if (!name) return false;
var keymaps = allKeyMaps(cm);
if (e.shiftKey) {
// First try to resolve full name (including 'Shift-'). Failing
// that, see if there is a cursor-motion command (starting with
// 'go') bound to the keyname without 'Shift-'.
handled = lookupKey("Shift-" + name, keymaps, function(b) {return doHandleBinding(cm, b, true);})
|| lookupKey(name, keymaps, function(b) {
if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
return doHandleBinding(cm, b);
});
} else {
handled = lookupKey(name, keymaps, function(b) { return doHandleBinding(cm, b); });
}
if (handled) {
e_preventDefault(e);
restartBlink(cm);
if (ie_lt9) { e.oldKeyCode = e.keyCode; e.keyCode = 0; }
signalLater(cm, "keyHandled", cm, name, e);
}
return handled;
}
function handleCharBinding(cm, e, ch) {
var handled = lookupKey("'" + ch + "'", allKeyMaps(cm),
function(b) { return doHandleBinding(cm, b, true); });
if (handled) {
e_preventDefault(e);
restartBlink(cm);
signalLater(cm, "keyHandled", cm, "'" + ch + "'", e);
}
return handled;
}
var lastStoppedKey = null;
function onKeyDown(e) {
var cm = this;
if (!cm.state.focused) onFocus(cm);
if (ie && e.keyCode == 27) { e.returnValue = false; }
if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return;
var code = e.keyCode;
// IE does strange things with escape.
cm.doc.sel.shift = code == 16 || e.shiftKey;
// First give onKeyEvent option a chance to handle this.
var handled = handleKeyBinding(cm, e);
if (opera) {
lastStoppedKey = handled ? code : null;
// Opera has no cut event... we try to at least catch the key combo
if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
cm.replaceSelection("");
}
}
function onKeyPress(e) {
var cm = this;
if (signalDOMEvent(cm, e) || cm.options.onKeyEvent && cm.options.onKeyEvent(cm, addStop(e))) return;
var keyCode = e.keyCode, charCode = e.charCode;
if (opera && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return;}
if (((opera && (!e.which || e.which < 10)) || khtml) && handleKeyBinding(cm, e)) return;
var ch = String.fromCharCode(charCode == null ? keyCode : charCode);
if (this.options.electricChars && this.doc.mode.electricChars &&
this.options.smartIndent && !isReadOnly(this) &&
this.doc.mode.electricChars.indexOf(ch) > -1)
setTimeout(operation(cm, function() {indentLine(cm, cm.doc.sel.to.line, "smart");}), 75);
if (handleCharBinding(cm, e, ch)) return;
if (ie && !ie_lt9) cm.display.inputHasSelection = null;
fastPoll(cm);
}
function onFocus(cm) {
if (cm.options.readOnly == "nocursor") return;
if (!cm.state.focused) {
signal(cm, "focus", cm);
cm.state.focused = true;
if (cm.display.wrapper.className.search(/\bCodeMirror-focused\b/) == -1)
cm.display.wrapper.className += " CodeMirror-focused";
resetInput(cm, true);
}
slowPoll(cm);
restartBlink(cm);
}
function onBlur(cm) {
if (cm.state.focused) {
signal(cm, "blur", cm);
cm.state.focused = false;
cm.display.wrapper.className = cm.display.wrapper.className.replace(" CodeMirror-focused", "");
}
clearInterval(cm.display.blinker);
setTimeout(function() {if (!cm.state.focused) cm.doc.sel.shift = false;}, 150);
}
var detectingSelectAll;
function onContextMenu(cm, e) {
var display = cm.display, sel = cm.doc.sel;
if (eventInWidget(display, e)) return;
var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop;
if (!pos || opera) return; // Opera is difficult.
if (posEq(sel.from, sel.to) || posLess(pos, sel.from) || !posLess(pos, sel.to))
operation(cm, setSelection)(cm.doc, pos, pos);
var oldCSS = display.input.style.cssText;
display.inputDiv.style.position = "absolute";
display.input.style.cssText = "position: fixed; width: 30px; height: 30px; top: " + (e.clientY - 5) +
"px; left: " + (e.clientX - 5) + "px; z-index: 1000; background: white; outline: none;" +
"border-width: 0; outline: none; overflow: hidden; opacity: .05; -ms-opacity: .05; filter: alpha(opacity=5);";
focusInput(cm);
resetInput(cm, true);
// Adds "Select all" to context menu in FF
if (posEq(sel.from, sel.to)) display.input.value = display.prevInput = " ";
function prepareSelectAllHack() {
if (display.input.selectionStart != null) {
var extval = display.input.value = " " + (posEq(sel.from, sel.to) ? "" : display.input.value);
display.prevInput = " ";
display.input.selectionStart = 1; display.input.selectionEnd = extval.length;
}
}
function rehide() {
display.inputDiv.style.position = "relative";
display.input.style.cssText = oldCSS;
if (ie_lt9) display.scrollbarV.scrollTop = display.scroller.scrollTop = scrollPos;
slowPoll(cm);
// Try to detect the user choosing select-all
if (display.input.selectionStart != null) {
if (!ie || ie_lt9) prepareSelectAllHack();
clearTimeout(detectingSelectAll);
var i = 0, poll = function(){
if (display.prevInput == " " && display.input.selectionStart == 0)
operation(cm, commands.selectAll)(cm);
else if (i++ < 10) detectingSelectAll = setTimeout(poll, 500);
else resetInput(cm);
};
detectingSelectAll = setTimeout(poll, 200);
}
}
if (ie && !ie_lt9) prepareSelectAllHack();
if (captureMiddleClick) {
e_stop(e);
var mouseup = function() {
off(window, "mouseup", mouseup);
setTimeout(rehide, 20);
};
on(window, "mouseup", mouseup);
} else {
setTimeout(rehide, 50);
}
}
// UPDATING
var changeEnd = CodeMirror.changeEnd = function(change) {
if (!change.text) return change.to;
return Pos(change.from.line + change.text.length - 1,
lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0));
};
// Make sure a position will be valid after the given change.
function clipPostChange(doc, change, pos) {
if (!posLess(change.from, pos)) return clipPos(doc, pos);
var diff = (change.text.length - 1) - (change.to.line - change.from.line);
if (pos.line > change.to.line + diff) {
var preLine = pos.line - diff, lastLine = doc.first + doc.size - 1;
if (preLine > lastLine) return Pos(lastLine, getLine(doc, lastLine).text.length);
return clipToLen(pos, getLine(doc, preLine).text.length);
}
if (pos.line == change.to.line + diff)
return clipToLen(pos, lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0) +
getLine(doc, change.to.line).text.length - change.to.ch);
var inside = pos.line - change.from.line;
return clipToLen(pos, change.text[inside].length + (inside ? 0 : change.from.ch));
}
// Hint can be null|"end"|"start"|"around"|{anchor,head}
function computeSelAfterChange(doc, change, hint) {
if (hint && typeof hint == "object") // Assumed to be {anchor, head} object
return {anchor: clipPostChange(doc, change, hint.anchor),
head: clipPostChange(doc, change, hint.head)};
if (hint == "start") return {anchor: change.from, head: change.from};
var end = changeEnd(change);
if (hint == "around") return {anchor: change.from, head: end};
if (hint == "end") return {anchor: end, head: end};
// hint is null, leave the selection alone as much as possible
var adjustPos = function(pos) {
if (posLess(pos, change.from)) return pos;
if (!posLess(change.to, pos)) return end;
var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch;
if (pos.line == change.to.line) ch += end.ch - change.to.ch;
return Pos(line, ch);
};
return {anchor: adjustPos(doc.sel.anchor), head: adjustPos(doc.sel.head)};
}
function filterChange(doc, change, update) {
var obj = {
canceled: false,
from: change.from,
to: change.to,
text: change.text,
origin: change.origin,
cancel: function() { this.canceled = true; }
};
if (update) obj.update = function(from, to, text, origin) {
if (from) this.from = clipPos(doc, from);
if (to) this.to = clipPos(doc, to);
if (text) this.text = text;
if (origin !== undefined) this.origin = origin;
};
signal(doc, "beforeChange", doc, obj);
if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj);
if (obj.canceled) return null;
return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin};
}
// Replace the range from from to to by the strings in replacement.
// change is a {from, to, text [, origin]} object
function makeChange(doc, change, selUpdate, ignoreReadOnly) {
if (doc.cm) {
if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, selUpdate, ignoreReadOnly);
if (doc.cm.state.suppressEdits) return;
}
if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
change = filterChange(doc, change, true);
if (!change) return;
}
// Possibly split or suppress the update based on the presence
// of read-only spans in its range.
var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to);
if (split) {
for (var i = split.length - 1; i >= 1; --i)
makeChangeNoReadonly(doc, {from: split[i].from, to: split[i].to, text: [""]});
if (split.length)
makeChangeNoReadonly(doc, {from: split[0].from, to: split[0].to, text: change.text}, selUpdate);
} else {
makeChangeNoReadonly(doc, change, selUpdate);
}
}
function makeChangeNoReadonly(doc, change, selUpdate) {
var selAfter = computeSelAfterChange(doc, change, selUpdate);
addToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN);
makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change));
var rebased = [];
linkedDocs(doc, function(doc, sharedHist) {
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
rebaseHist(doc.history, change);
rebased.push(doc.history);
}
makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change));
});
}
function makeChangeFromHistory(doc, type) {
if (doc.cm && doc.cm.state.suppressEdits) return;
var hist = doc.history;
var event = (type == "undo" ? hist.done : hist.undone).pop();
if (!event) return;
var anti = {changes: [], anchorBefore: event.anchorAfter, headBefore: event.headAfter,
anchorAfter: event.anchorBefore, headAfter: event.headBefore,
generation: hist.generation};
(type == "undo" ? hist.undone : hist.done).push(anti);
hist.generation = event.generation || ++hist.maxGeneration;
var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange");
for (var i = event.changes.length - 1; i >= 0; --i) {
var change = event.changes[i];
change.origin = type;
if (filter && !filterChange(doc, change, false)) {
(type == "undo" ? hist.done : hist.undone).length = 0;
return;
}
anti.changes.push(historyChangeFromChange(doc, change));
var after = i ? computeSelAfterChange(doc, change, null)
: {anchor: event.anchorBefore, head: event.headBefore};
makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change));
var rebased = [];
linkedDocs(doc, function(doc, sharedHist) {
if (!sharedHist && indexOf(rebased, doc.history) == -1) {
rebaseHist(doc.history, change);
rebased.push(doc.history);
}
makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change));
});
}
}
function shiftDoc(doc, distance) {
function shiftPos(pos) {return Pos(pos.line + distance, pos.ch);}
doc.first += distance;
if (doc.cm) regChange(doc.cm, doc.first, doc.first, distance);
doc.sel.head = shiftPos(doc.sel.head); doc.sel.anchor = shiftPos(doc.sel.anchor);
doc.sel.from = shiftPos(doc.sel.from); doc.sel.to = shiftPos(doc.sel.to);
}
function makeChangeSingleDoc(doc, change, selAfter, spans) {
if (doc.cm && !doc.cm.curOp)
return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans);
if (change.to.line < doc.first) {
shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line));
return;
}
if (change.from.line > doc.lastLine()) return;
// Clip the change to the size of this doc
if (change.from.line < doc.first) {
var shift = change.text.length - 1 - (doc.first - change.from.line);
shiftDoc(doc, shift);
change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
text: [lst(change.text)], origin: change.origin};
}
var last = doc.lastLine();
if (change.to.line > last) {
change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
text: [change.text[0]], origin: change.origin};
}
change.removed = getBetween(doc, change.from, change.to);
if (!selAfter) selAfter = computeSelAfterChange(doc, change, null);
if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans, selAfter);
else updateDoc(doc, change, spans, selAfter);
}
function makeChangeSingleDocInEditor(cm, change, spans, selAfter) {
var doc = cm.doc, display = cm.display, from = change.from, to = change.to;
var recomputeMaxLength = false, checkWidthStart = from.line;
if (!cm.options.lineWrapping) {
checkWidthStart = lineNo(visualLine(doc, getLine(doc, from.line)));
doc.iter(checkWidthStart, to.line + 1, function(line) {
if (line == display.maxLine) {
recomputeMaxLength = true;
return true;
}
});
}
if (!posLess(doc.sel.head, change.from) && !posLess(change.to, doc.sel.head))
cm.curOp.cursorActivity = true;
updateDoc(doc, change, spans, selAfter, estimateHeight(cm));
if (!cm.options.lineWrapping) {
doc.iter(checkWidthStart, from.line + change.text.length, function(line) {
var len = lineLength(doc, line);
if (len > display.maxLineLength) {
display.maxLine = line;
display.maxLineLength = len;
display.maxLineChanged = true;
recomputeMaxLength = false;
}
});
if (recomputeMaxLength) cm.curOp.updateMaxLine = true;
}
// Adjust frontier, schedule worker
doc.frontier = Math.min(doc.frontier, from.line);
startWorker(cm, 400);
var lendiff = change.text.length - (to.line - from.line) - 1;
// Remember that these lines changed, for updating the display
regChange(cm, from.line, to.line + 1, lendiff);
if (hasHandler(cm, "change")) {
var changeObj = {from: from, to: to,
text: change.text,
removed: change.removed,
origin: change.origin};
if (cm.curOp.textChanged) {
for (var cur = cm.curOp.textChanged; cur.next; cur = cur.next) {}
cur.next = changeObj;
} else cm.curOp.textChanged = changeObj;
}
}
function replaceRange(doc, code, from, to, origin) {
if (!to) to = from;
if (posLess(to, from)) { var tmp = to; to = from; from = tmp; }
if (typeof code == "string") code = splitLines(code);
makeChange(doc, {from: from, to: to, text: code, origin: origin}, null);
}
// POSITION OBJECT
function Pos(line, ch) {
if (!(this instanceof Pos)) return new Pos(line, ch);
this.line = line; this.ch = ch;
}
CodeMirror.Pos = Pos;
function posEq(a, b) {return a.line == b.line && a.ch == b.ch;}
function posLess(a, b) {return a.line < b.line || (a.line == b.line && a.ch < b.ch);}
function copyPos(x) {return Pos(x.line, x.ch);}
// SELECTION
function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1));}
function clipPos(doc, pos) {
if (pos.line < doc.first) return Pos(doc.first, 0);
var last = doc.first + doc.size - 1;
if (pos.line > last) return Pos(last, getLine(doc, last).text.length);
return clipToLen(pos, getLine(doc, pos.line).text.length);
}
function clipToLen(pos, linelen) {
var ch = pos.ch;
if (ch == null || ch > linelen) return Pos(pos.line, linelen);
else if (ch < 0) return Pos(pos.line, 0);
else return pos;
}
function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size;}
// If shift is held, this will move the selection anchor. Otherwise,
// it'll set the whole selection.
function extendSelection(doc, pos, other, bias) {
if (doc.sel.shift || doc.sel.extend) {
var anchor = doc.sel.anchor;
if (other) {
var posBefore = posLess(pos, anchor);
if (posBefore != posLess(other, anchor)) {
anchor = pos;
pos = other;
} else if (posBefore != posLess(pos, other)) {
pos = other;
}
}
setSelection(doc, anchor, pos, bias);
} else {
setSelection(doc, pos, other || pos, bias);
}
if (doc.cm) doc.cm.curOp.userSelChange = true;
}
function filterSelectionChange(doc, anchor, head) {
var obj = {anchor: anchor, head: head};
signal(doc, "beforeSelectionChange", doc, obj);
if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj);
obj.anchor = clipPos(doc, obj.anchor); obj.head = clipPos(doc, obj.head);
return obj;
}
// Update the selection. Last two args are only used by
// updateDoc, since they have to be expressed in the line
// numbers before the update.
function setSelection(doc, anchor, head, bias, checkAtomic) {
if (!checkAtomic && hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) {
var filtered = filterSelectionChange(doc, anchor, head);
head = filtered.head;
anchor = filtered.anchor;
}
var sel = doc.sel;
sel.goalColumn = null;
// Skip over atomic spans.
if (checkAtomic || !posEq(anchor, sel.anchor))
anchor = skipAtomic(doc, anchor, bias, checkAtomic != "push");
if (checkAtomic || !posEq(head, sel.head))
head = skipAtomic(doc, head, bias, checkAtomic != "push");
if (posEq(sel.anchor, anchor) && posEq(sel.head, head)) return;
sel.anchor = anchor; sel.head = head;
var inv = posLess(head, anchor);
sel.from = inv ? head : anchor;
sel.to = inv ? anchor : head;
if (doc.cm)
doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged =
doc.cm.curOp.cursorActivity = true;
signalLater(doc, "cursorActivity", doc);
}
function reCheckSelection(cm) {
setSelection(cm.doc, cm.doc.sel.from, cm.doc.sel.to, null, "push");
}
function skipAtomic(doc, pos, bias, mayClear) {
var flipped = false, curPos = pos;
var dir = bias || 1;
doc.cantEdit = false;
search: for (;;) {
var line = getLine(doc, curPos.line);
if (line.markedSpans) {
for (var i = 0; i < line.markedSpans.length; ++i) {
var sp = line.markedSpans[i], m = sp.marker;
if ((sp.from == null || (m.inclusiveLeft ? sp.from <= curPos.ch : sp.from < curPos.ch)) &&
(sp.to == null || (m.inclusiveRight ? sp.to >= curPos.ch : sp.to > curPos.ch))) {
if (mayClear) {
signal(m, "beforeCursorEnter");
if (m.explicitlyCleared) {
if (!line.markedSpans) break;
else {--i; continue;}
}
}
if (!m.atomic) continue;
var newPos = m.find()[dir < 0 ? "from" : "to"];
if (posEq(newPos, curPos)) {
newPos.ch += dir;
if (newPos.ch < 0) {
if (newPos.line > doc.first) newPos = clipPos(doc, Pos(newPos.line - 1));
else newPos = null;
} else if (newPos.ch > line.text.length) {
if (newPos.line < doc.first + doc.size - 1) newPos = Pos(newPos.line + 1, 0);
else newPos = null;
}
if (!newPos) {
if (flipped) {
// Driven in a corner -- no valid cursor position found at all
// -- try again *with* clearing, if we didn't already
if (!mayClear) return skipAtomic(doc, pos, bias, true);
// Otherwise, turn off editing until further notice, and return the start of the doc
doc.cantEdit = true;
return Pos(doc.first, 0);
}
flipped = true; newPos = pos; dir = -dir;
}
}
curPos = newPos;
continue search;
}
}
}
return curPos;
}
}
// SCROLLING
function scrollCursorIntoView(cm) {
var coords = scrollPosIntoView(cm, cm.doc.sel.head, cm.options.cursorScrollMargin);
if (!cm.state.focused) return;
var display = cm.display, box = getRect(display.sizer), doScroll = null;
if (coords.top + box.top < 0) doScroll = true;
else if (coords.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false;
if (doScroll != null && !phantom) {
var hidden = display.cursor.style.display == "none";
if (hidden) {
display.cursor.style.display = "";
display.cursor.style.left = coords.left + "px";
display.cursor.style.top = (coords.top - display.viewOffset) + "px";
}
display.cursor.scrollIntoView(doScroll);
if (hidden) display.cursor.style.display = "none";
}
}
function scrollPosIntoView(cm, pos, margin) {
if (margin == null) margin = 0;
for (;;) {
var changed = false, coords = cursorCoords(cm, pos);
var scrollPos = calculateScrollPos(cm, coords.left, coords.top - margin, coords.left, coords.bottom + margin);
var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft;
if (scrollPos.scrollTop != null) {
setScrollTop(cm, scrollPos.scrollTop);
if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true;
}
if (scrollPos.scrollLeft != null) {
setScrollLeft(cm, scrollPos.scrollLeft);
if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true;
}
if (!changed) return coords;
}
}
function scrollIntoView(cm, x1, y1, x2, y2) {
var scrollPos = calculateScrollPos(cm, x1, y1, x2, y2);
if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop);
if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft);
}
function calculateScrollPos(cm, x1, y1, x2, y2) {
var display = cm.display, snapMargin = textHeight(cm.display);
if (y1 < 0) y1 = 0;
var screen = display.scroller.clientHeight - scrollerCutOff, screentop = display.scroller.scrollTop, result = {};
var docBottom = cm.doc.height + paddingVert(display);
var atTop = y1 < snapMargin, atBottom = y2 > docBottom - snapMargin;
if (y1 < screentop) {
result.scrollTop = atTop ? 0 : y1;
} else if (y2 > screentop + screen) {
var newTop = Math.min(y1, (atBottom ? docBottom : y2) - screen);
if (newTop != screentop) result.scrollTop = newTop;
}
var screenw = display.scroller.clientWidth - scrollerCutOff, screenleft = display.scroller.scrollLeft;
x1 += display.gutters.offsetWidth; x2 += display.gutters.offsetWidth;
var gutterw = display.gutters.offsetWidth;
var atLeft = x1 < gutterw + 10;
if (x1 < screenleft + gutterw || atLeft) {
if (atLeft) x1 = 0;
result.scrollLeft = Math.max(0, x1 - 10 - gutterw);
} else if (x2 > screenw + screenleft - 3) {
result.scrollLeft = x2 + 10 - screenw;
}
return result;
}
function updateScrollPos(cm, left, top) {
cm.curOp.updateScrollPos = {scrollLeft: left == null ? cm.doc.scrollLeft : left,
scrollTop: top == null ? cm.doc.scrollTop : top};
}
function addToScrollPos(cm, left, top) {
var pos = cm.curOp.updateScrollPos || (cm.curOp.updateScrollPos = {scrollLeft: cm.doc.scrollLeft, scrollTop: cm.doc.scrollTop});
var scroll = cm.display.scroller;
pos.scrollTop = Math.max(0, Math.min(scroll.scrollHeight - scroll.clientHeight, pos.scrollTop + top));
pos.scrollLeft = Math.max(0, Math.min(scroll.scrollWidth - scroll.clientWidth, pos.scrollLeft + left));
}
// API UTILITIES
function indentLine(cm, n, how, aggressive) {
var doc = cm.doc;
if (how == null) how = "add";
if (how == "smart") {
if (!cm.doc.mode.indent) how = "prev";
else var state = getStateBefore(cm, n);
}
var tabSize = cm.options.tabSize;
var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize);
var curSpaceString = line.text.match(/^\s*/)[0], indentation;
if (how == "smart") {
indentation = cm.doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text);
if (indentation == Pass) {
if (!aggressive) return;
how = "prev";
}
}
if (how == "prev") {
if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize);
else indentation = 0;
} else if (how == "add") {
indentation = curSpace + cm.options.indentUnit;
} else if (how == "subtract") {
indentation = curSpace - cm.options.indentUnit;
} else if (typeof how == "number") {
indentation = curSpace + how;
}
indentation = Math.max(0, indentation);
var indentString = "", pos = 0;
if (cm.options.indentWithTabs)
for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";}
if (pos < indentation) indentString += spaceStr(indentation - pos);
if (indentString != curSpaceString)
replaceRange(cm.doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input");
line.stateAfter = null;
}
function changeLine(cm, handle, op) {
var no = handle, line = handle, doc = cm.doc;
if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle));
else no = lineNo(handle);
if (no == null) return null;
if (op(line, no)) regChange(cm, no, no + 1);
else return null;
return line;
}
function findPosH(doc, pos, dir, unit, visually) {
var line = pos.line, ch = pos.ch, origDir = dir;
var lineObj = getLine(doc, line);
var possible = true;
function findNextLine() {
var l = line + dir;
if (l < doc.first || l >= doc.first + doc.size) return (possible = false);
line = l;
return lineObj = getLine(doc, l);
}
function moveOnce(boundToLine) {
var next = (visually ? moveVisually : moveLogically)(lineObj, ch, dir, true);
if (next == null) {
if (!boundToLine && findNextLine()) {
if (visually) ch = (dir < 0 ? lineRight : lineLeft)(lineObj);
else ch = dir < 0 ? lineObj.text.length : 0;
} else return (possible = false);
} else ch = next;
return true;
}
if (unit == "char") moveOnce();
else if (unit == "column") moveOnce(true);
else if (unit == "word" || unit == "group") {
var sawType = null, group = unit == "group";
for (var first = true;; first = false) {
if (dir < 0 && !moveOnce(!first)) break;
var cur = lineObj.text.charAt(ch) || "\n";
var type = isWordChar(cur) ? "w"
: !group ? null
: /\s/.test(cur) ? null
: "p";
if (sawType && sawType != type) {
if (dir < 0) {dir = 1; moveOnce();}
break;
}
if (type) sawType = type;
if (dir > 0 && !moveOnce(!first)) break;
}
}
var result = skipAtomic(doc, Pos(line, ch), origDir, true);
if (!possible) result.hitSide = true;
return result;
}
function findPosV(cm, pos, dir, unit) {
var doc = cm.doc, x = pos.left, y;
if (unit == "page") {
var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight);
y = pos.top + dir * (pageSize - (dir < 0 ? 1.5 : .5) * textHeight(cm.display));
} else if (unit == "line") {
y = dir > 0 ? pos.bottom + 3 : pos.top - 3;
}
for (;;) {
var target = coordsChar(cm, x, y);
if (!target.outside) break;
if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break; }
y += dir * 5;
}
return target;
}
function findWordAt(line, pos) {
var start = pos.ch, end = pos.ch;
if (line) {
if (pos.xRel < 0 || end == line.length) --start; else ++end;
var startChar = line.charAt(start);
var check = isWordChar(startChar) ? isWordChar
: /\s/.test(startChar) ? function(ch) {return /\s/.test(ch);}
: function(ch) {return !/\s/.test(ch) && !isWordChar(ch);};
while (start > 0 && check(line.charAt(start - 1))) --start;
while (end < line.length && check(line.charAt(end))) ++end;
}
return {from: Pos(pos.line, start), to: Pos(pos.line, end)};
}
function selectLine(cm, line) {
extendSelection(cm.doc, Pos(line, 0), clipPos(cm.doc, Pos(line + 1, 0)));
}
// PROTOTYPE
// The publicly visible API. Note that operation(null, f) means
// 'wrap f in an operation, performed on its `this` parameter'
CodeMirror.prototype = {
constructor: CodeMirror,
focus: function(){window.focus(); focusInput(this); onFocus(this); fastPoll(this);},
setOption: function(option, value) {
var options = this.options, old = options[option];
if (options[option] == value && option != "mode") return;
options[option] = value;
if (optionHandlers.hasOwnProperty(option))
operation(this, optionHandlers[option])(this, value, old);
},
getOption: function(option) {return this.options[option];},
getDoc: function() {return this.doc;},
addKeyMap: function(map, bottom) {
this.state.keyMaps[bottom ? "push" : "unshift"](map);
},
removeKeyMap: function(map) {
var maps = this.state.keyMaps;
for (var i = 0; i < maps.length; ++i)
if ((typeof map == "string" ? maps[i].name : maps[i]) == map) {
maps.splice(i, 1);
return true;
}
},
addOverlay: operation(null, function(spec, options) {
var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec);
if (mode.startState) throw new Error("Overlays may not be stateful.");
this.state.overlays.push({mode: mode, modeSpec: spec, opaque: options && options.opaque});
this.state.modeGen++;
regChange(this);
}),
removeOverlay: operation(null, function(spec) {
var overlays = this.state.overlays;
for (var i = 0; i < overlays.length; ++i) {
var cur = overlays[i].modeSpec;
if (cur == spec || typeof spec == "string" && cur.name == spec) {
overlays.splice(i, 1);
this.state.modeGen++;
regChange(this);
return;
}
}
}),
indentLine: operation(null, function(n, dir, aggressive) {
if (typeof dir != "string" && typeof dir != "number") {
if (dir == null) dir = this.options.smartIndent ? "smart" : "prev";
else dir = dir ? "add" : "subtract";
}
if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive);
}),
indentSelection: operation(null, function(how) {
var sel = this.doc.sel;
if (posEq(sel.from, sel.to)) return indentLine(this, sel.from.line, how);
var e = sel.to.line - (sel.to.ch ? 0 : 1);
for (var i = sel.from.line; i <= e; ++i) indentLine(this, i, how);
}),
// Fetch the parser token for a given character. Useful for hacks
// that want to inspect the mode state (say, for completion).
getTokenAt: function(pos, precise) {
var doc = this.doc;
pos = clipPos(doc, pos);
var state = getStateBefore(this, pos.line, precise), mode = this.doc.mode;
var line = getLine(doc, pos.line);
var stream = new StringStream(line.text, this.options.tabSize);
while (stream.pos < pos.ch && !stream.eol()) {
stream.start = stream.pos;
var style = mode.token(stream, state);
}
return {start: stream.start,
end: stream.pos,
string: stream.current(),
className: style || null, // Deprecated, use 'type' instead
type: style || null,
state: state};
},
getTokenTypeAt: function(pos) {
pos = clipPos(this.doc, pos);
var styles = getLineStyles(this, getLine(this.doc, pos.line));
var before = 0, after = (styles.length - 1) / 2, ch = pos.ch;
for (;;) {
var mid = (before + after) >> 1;
if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid;
else if (styles[mid * 2 + 1] < ch) before = mid + 1;
else return styles[mid * 2 + 2];
}
},
getStateAfter: function(line, precise) {
var doc = this.doc;
line = clipLine(doc, line == null ? doc.first + doc.size - 1: line);
return getStateBefore(this, line + 1, precise);
},
cursorCoords: function(start, mode) {
var pos, sel = this.doc.sel;
if (start == null) pos = sel.head;
else if (typeof start == "object") pos = clipPos(this.doc, start);
else pos = start ? sel.from : sel.to;
return cursorCoords(this, pos, mode || "page");
},
charCoords: function(pos, mode) {
return charCoords(this, clipPos(this.doc, pos), mode || "page");
},
coordsChar: function(coords, mode) {
coords = fromCoordSystem(this, coords, mode || "page");
return coordsChar(this, coords.left, coords.top);
},
lineAtHeight: function(height, mode) {
height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top;
return lineAtHeight(this.doc, height + this.display.viewOffset);
},
heightAtLine: function(line, mode) {
var end = false, last = this.doc.first + this.doc.size - 1;
if (line < this.doc.first) line = this.doc.first;
else if (line > last) { line = last; end = true; }
var lineObj = getLine(this.doc, line);
return intoCoordSystem(this, getLine(this.doc, line), {top: 0, left: 0}, mode || "page").top +
(end ? lineObj.height : 0);
},
defaultTextHeight: function() { return textHeight(this.display); },
defaultCharWidth: function() { return charWidth(this.display); },
setGutterMarker: operation(null, function(line, gutterID, value) {
return changeLine(this, line, function(line) {
var markers = line.gutterMarkers || (line.gutterMarkers = {});
markers[gutterID] = value;
if (!value && isEmpty(markers)) line.gutterMarkers = null;
return true;
});
}),
clearGutter: operation(null, function(gutterID) {
var cm = this, doc = cm.doc, i = doc.first;
doc.iter(function(line) {
if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
line.gutterMarkers[gutterID] = null;
regChange(cm, i, i + 1);
if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null;
}
++i;
});
}),
addLineClass: operation(null, function(handle, where, cls) {
return changeLine(this, handle, function(line) {
var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass";
if (!line[prop]) line[prop] = cls;
else if (new RegExp("(?:^|\\s)" + cls + "(?:$|\\s)").test(line[prop])) return false;
else line[prop] += " " + cls;
return true;
});
}),
removeLineClass: operation(null, function(handle, where, cls) {
return changeLine(this, handle, function(line) {
var prop = where == "text" ? "textClass" : where == "background" ? "bgClass" : "wrapClass";
var cur = line[prop];
if (!cur) return false;
else if (cls == null) line[prop] = null;
else {
var found = cur.match(new RegExp("(?:^|\\s+)" + cls + "(?:$|\\s+)"));
if (!found) return false;
var end = found.index + found[0].length;
line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null;
}
return true;
});
}),
addLineWidget: operation(null, function(handle, node, options) {
return addLineWidget(this, handle, node, options);
}),
removeLineWidget: function(widget) { widget.clear(); },
lineInfo: function(line) {
if (typeof line == "number") {
if (!isLine(this.doc, line)) return null;
var n = line;
line = getLine(this.doc, line);
if (!line) return null;
} else {
var n = lineNo(line);
if (n == null) return null;
}
return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
widgets: line.widgets};
},
getViewport: function() { return {from: this.display.showingFrom, to: this.display.showingTo};},
addWidget: function(pos, node, scroll, vert, horiz) {
var display = this.display;
pos = cursorCoords(this, clipPos(this.doc, pos));
var top = pos.bottom, left = pos.left;
node.style.position = "absolute";
display.sizer.appendChild(node);
if (vert == "over") {
top = pos.top;
} else if (vert == "above" || vert == "near") {
var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth);
// Default to positioning above (if specified and possible); otherwise default to positioning below
if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
top = pos.top - node.offsetHeight;
else if (pos.bottom + node.offsetHeight <= vspace)
top = pos.bottom;
if (left + node.offsetWidth > hspace)
left = hspace - node.offsetWidth;
}
node.style.top = top + "px";
node.style.left = node.style.right = "";
if (horiz == "right") {
left = display.sizer.clientWidth - node.offsetWidth;
node.style.right = "0px";
} else {
if (horiz == "left") left = 0;
else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2;
node.style.left = left + "px";
}
if (scroll)
scrollIntoView(this, left, top, left + node.offsetWidth, top + node.offsetHeight);
},
triggerOnKeyDown: operation(null, onKeyDown),
execCommand: function(cmd) {return commands[cmd](this);},
findPosH: function(from, amount, unit, visually) {
var dir = 1;
if (amount < 0) { dir = -1; amount = -amount; }
for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
cur = findPosH(this.doc, cur, dir, unit, visually);
if (cur.hitSide) break;
}
return cur;
},
moveH: operation(null, function(dir, unit) {
var sel = this.doc.sel, pos;
if (sel.shift || sel.extend || posEq(sel.from, sel.to))
pos = findPosH(this.doc, sel.head, dir, unit, this.options.rtlMoveVisually);
else
pos = dir < 0 ? sel.from : sel.to;
extendSelection(this.doc, pos, pos, dir);
}),
deleteH: operation(null, function(dir, unit) {
var sel = this.doc.sel;
if (!posEq(sel.from, sel.to)) replaceRange(this.doc, "", sel.from, sel.to, "+delete");
else replaceRange(this.doc, "", sel.from, findPosH(this.doc, sel.head, dir, unit, false), "+delete");
this.curOp.userSelChange = true;
}),
findPosV: function(from, amount, unit, goalColumn) {
var dir = 1, x = goalColumn;
if (amount < 0) { dir = -1; amount = -amount; }
for (var i = 0, cur = clipPos(this.doc, from); i < amount; ++i) {
var coords = cursorCoords(this, cur, "div");
if (x == null) x = coords.left;
else coords.left = x;
cur = findPosV(this, coords, dir, unit);
if (cur.hitSide) break;
}
return cur;
},
moveV: operation(null, function(dir, unit) {
var sel = this.doc.sel;
var pos = cursorCoords(this, sel.head, "div");
if (sel.goalColumn != null) pos.left = sel.goalColumn;
var target = findPosV(this, pos, dir, unit);
if (unit == "page") addToScrollPos(this, 0, charCoords(this, target, "div").top - pos.top);
extendSelection(this.doc, target, target, dir);
sel.goalColumn = pos.left;
}),
toggleOverwrite: function(value) {
if (value != null && value == this.state.overwrite) return;
if (this.state.overwrite = !this.state.overwrite)
this.display.cursor.className += " CodeMirror-overwrite";
else
this.display.cursor.className = this.display.cursor.className.replace(" CodeMirror-overwrite", "");
},
hasFocus: function() { return this.state.focused; },
scrollTo: operation(null, function(x, y) {
updateScrollPos(this, x, y);
}),
getScrollInfo: function() {
var scroller = this.display.scroller, co = scrollerCutOff;
return {left: scroller.scrollLeft, top: scroller.scrollTop,
height: scroller.scrollHeight - co, width: scroller.scrollWidth - co,
clientHeight: scroller.clientHeight - co, clientWidth: scroller.clientWidth - co};
},
scrollIntoView: operation(null, function(pos, margin) {
if (typeof pos == "number") pos = Pos(pos, 0);
if (!margin) margin = 0;
var coords = pos;
if (!pos || pos.line != null) {
this.curOp.scrollToPos = pos ? clipPos(this.doc, pos) : this.doc.sel.head;
this.curOp.scrollToPosMargin = margin;
coords = cursorCoords(this, this.curOp.scrollToPos);
}
var sPos = calculateScrollPos(this, coords.left, coords.top - margin, coords.right, coords.bottom + margin);
updateScrollPos(this, sPos.scrollLeft, sPos.scrollTop);
}),
setSize: function(width, height) {
function interpret(val) {
return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val;
}
if (width != null) this.display.wrapper.style.width = interpret(width);
if (height != null) this.display.wrapper.style.height = interpret(height);
this.refresh();
},
on: function(type, f) {on(this, type, f);},
off: function(type, f) {off(this, type, f);},
operation: function(f){return runInOp(this, f);},
refresh: operation(null, function() {
clearCaches(this);
updateScrollPos(this, this.doc.scrollLeft, this.doc.scrollTop);
regChange(this);
}),
swapDoc: operation(null, function(doc) {
var old = this.doc;
old.cm = null;
attachDoc(this, doc);
clearCaches(this);
resetInput(this, true);
updateScrollPos(this, doc.scrollLeft, doc.scrollTop);
return old;
}),
getInputField: function(){return this.display.input;},
getWrapperElement: function(){return this.display.wrapper;},
getScrollerElement: function(){return this.display.scroller;},
getGutterElement: function(){return this.display.gutters;}
};
// OPTION DEFAULTS
var optionHandlers = CodeMirror.optionHandlers = {};
// The default configuration options.
var defaults = CodeMirror.defaults = {};
function option(name, deflt, handle, notOnInit) {
CodeMirror.defaults[name] = deflt;
if (handle) optionHandlers[name] =
notOnInit ? function(cm, val, old) {if (old != Init) handle(cm, val, old);} : handle;
}
var Init = CodeMirror.Init = {toString: function(){return "CodeMirror.Init";}};
// These two are, on init, called from the constructor because they
// have to be initialized before the editor can start at all.
option("value", "", function(cm, val) {
cm.setValue(val);
}, true);
option("mode", null, function(cm, val) {
cm.doc.modeOption = val;
loadMode(cm);
}, true);
option("indentUnit", 2, loadMode, true);
option("indentWithTabs", false);
option("smartIndent", true);
option("tabSize", 4, function(cm) {
loadMode(cm);
clearCaches(cm);
regChange(cm);
}, true);
option("electricChars", true);
option("rtlMoveVisually", !windows);
option("theme", "default", function(cm) {
themeChanged(cm);
guttersChanged(cm);
}, true);
option("keyMap", "default", keyMapChanged);
option("extraKeys", null);
option("onKeyEvent", null);
option("onDragEvent", null);
option("lineWrapping", false, wrappingChanged, true);
option("gutters", [], function(cm) {
setGuttersForLineNumbers(cm.options);
guttersChanged(cm);
}, true);
option("fixedGutter", true, function(cm, val) {
cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0";
cm.refresh();
}, true);
option("coverGutterNextToScrollbar", false, updateScrollbars, true);
option("lineNumbers", false, function(cm) {
setGuttersForLineNumbers(cm.options);
guttersChanged(cm);
}, true);
option("firstLineNumber", 1, guttersChanged, true);
option("lineNumberFormatter", function(integer) {return integer;}, guttersChanged, true);
option("showCursorWhenSelecting", false, updateSelection, true);
option("readOnly", false, function(cm, val) {
if (val == "nocursor") {onBlur(cm); cm.display.input.blur();}
else if (!val) resetInput(cm, true);
});
option("dragDrop", true);
option("cursorBlinkRate", 530);
option("cursorScrollMargin", 0);
option("cursorHeight", 1);
option("workTime", 100);
option("workDelay", 100);
option("flattenSpans", true);
option("pollInterval", 100);
option("undoDepth", 40, function(cm, val){cm.doc.history.undoDepth = val;});
option("historyEventDelay", 500);
option("viewportMargin", 10, function(cm){cm.refresh();}, true);
option("maxHighlightLength", 10000, function(cm){loadMode(cm); cm.refresh();}, true);
option("moveInputWithCursor", true, function(cm, val) {
if (!val) cm.display.inputDiv.style.top = cm.display.inputDiv.style.left = 0;
});
option("tabindex", null, function(cm, val) {
cm.display.input.tabIndex = val || "";
});
option("autofocus", null);
// MODE DEFINITION AND QUERYING
// Known modes, by name and by MIME
var modes = CodeMirror.modes = {}, mimeModes = CodeMirror.mimeModes = {};
CodeMirror.defineMode = function(name, mode) {
if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name;
if (arguments.length > 2) {
mode.dependencies = [];
for (var i = 2; i < arguments.length; ++i) mode.dependencies.push(arguments[i]);
}
modes[name] = mode;
};
CodeMirror.defineMIME = function(mime, spec) {
mimeModes[mime] = spec;
};
CodeMirror.resolveMode = function(spec) {
if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
spec = mimeModes[spec];
} else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
var found = mimeModes[spec.name];
spec = createObj(found, spec);
spec.name = found.name;
} else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
return CodeMirror.resolveMode("application/xml");
}
if (typeof spec == "string") return {name: spec};
else return spec || {name: "null"};
};
CodeMirror.getMode = function(options, spec) {
spec = CodeMirror.resolveMode(spec);
var mfactory = modes[spec.name];
if (!mfactory) return CodeMirror.getMode(options, "text/plain");
var modeObj = mfactory(options, spec);
if (modeExtensions.hasOwnProperty(spec.name)) {
var exts = modeExtensions[spec.name];
for (var prop in exts) {
if (!exts.hasOwnProperty(prop)) continue;
if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop];
modeObj[prop] = exts[prop];
}
}
modeObj.name = spec.name;
return modeObj;
};
CodeMirror.defineMode("null", function() {
return {token: function(stream) {stream.skipToEnd();}};
});
CodeMirror.defineMIME("text/plain", "null");
var modeExtensions = CodeMirror.modeExtensions = {};
CodeMirror.extendMode = function(mode, properties) {
var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {});
copyObj(properties, exts);
};
// EXTENSIONS
CodeMirror.defineExtension = function(name, func) {
CodeMirror.prototype[name] = func;
};
CodeMirror.defineDocExtension = function(name, func) {
Doc.prototype[name] = func;
};
CodeMirror.defineOption = option;
var initHooks = [];
CodeMirror.defineInitHook = function(f) {initHooks.push(f);};
// MODE STATE HANDLING
// Utility functions for working with state. Exported because modes
// sometimes need to do this.
function copyState(mode, state) {
if (state === true) return state;
if (mode.copyState) return mode.copyState(state);
var nstate = {};
for (var n in state) {
var val = state[n];
if (val instanceof Array) val = val.concat([]);
nstate[n] = val;
}
return nstate;
}
CodeMirror.copyState = copyState;
function startState(mode, a1, a2) {
return mode.startState ? mode.startState(a1, a2) : true;
}
CodeMirror.startState = startState;
CodeMirror.innerMode = function(mode, state) {
while (mode.innerMode) {
var info = mode.innerMode(state);
state = info.state;
mode = info.mode;
}
return info || {mode: mode, state: state};
};
// STANDARD COMMANDS
var commands = CodeMirror.commands = {
selectAll: function(cm) {cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()));},
killLine: function(cm) {
var from = cm.getCursor(true), to = cm.getCursor(false), sel = !posEq(from, to);
if (!sel && cm.getLine(from.line).length == from.ch)
cm.replaceRange("", from, Pos(from.line + 1, 0), "+delete");
else cm.replaceRange("", from, sel ? to : Pos(from.line), "+delete");
},
deleteLine: function(cm) {
var l = cm.getCursor().line;
cm.replaceRange("", Pos(l, 0), Pos(l), "+delete");
},
delLineLeft: function(cm) {
var cur = cm.getCursor();
cm.replaceRange("", Pos(cur.line, 0), cur, "+delete");
},
undo: function(cm) {cm.undo();},
redo: function(cm) {cm.redo();},
goDocStart: function(cm) {cm.extendSelection(Pos(cm.firstLine(), 0));},
goDocEnd: function(cm) {cm.extendSelection(Pos(cm.lastLine()));},
goLineStart: function(cm) {
cm.extendSelection(lineStart(cm, cm.getCursor().line));
},
goLineStartSmart: function(cm) {
var cur = cm.getCursor(), start = lineStart(cm, cur.line);
var line = cm.getLineHandle(start.line);
var order = getOrder(line);
if (!order || order[0].level == 0) {
var firstNonWS = Math.max(0, line.text.search(/\S/));
var inWS = cur.line == start.line && cur.ch <= firstNonWS && cur.ch;
cm.extendSelection(Pos(start.line, inWS ? 0 : firstNonWS));
} else cm.extendSelection(start);
},
goLineEnd: function(cm) {
cm.extendSelection(lineEnd(cm, cm.getCursor().line));
},
goLineRight: function(cm) {
var top = cm.charCoords(cm.getCursor(), "div").top + 5;
cm.extendSelection(cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"));
},
goLineLeft: function(cm) {
var top = cm.charCoords(cm.getCursor(), "div").top + 5;
cm.extendSelection(cm.coordsChar({left: 0, top: top}, "div"));
},
goLineUp: function(cm) {cm.moveV(-1, "line");},
goLineDown: function(cm) {cm.moveV(1, "line");},
goPageUp: function(cm) {cm.moveV(-1, "page");},
goPageDown: function(cm) {cm.moveV(1, "page");},
goCharLeft: function(cm) {cm.moveH(-1, "char");},
goCharRight: function(cm) {cm.moveH(1, "char");},
goColumnLeft: function(cm) {cm.moveH(-1, "column");},
goColumnRight: function(cm) {cm.moveH(1, "column");},
goWordLeft: function(cm) {cm.moveH(-1, "word");},
goGroupRight: function(cm) {cm.moveH(1, "group");},
goGroupLeft: function(cm) {cm.moveH(-1, "group");},
goWordRight: function(cm) {cm.moveH(1, "word");},
delCharBefore: function(cm) {cm.deleteH(-1, "char");},
delCharAfter: function(cm) {cm.deleteH(1, "char");},
delWordBefore: function(cm) {cm.deleteH(-1, "word");},
delWordAfter: function(cm) {cm.deleteH(1, "word");},
delGroupBefore: function(cm) {cm.deleteH(-1, "group");},
delGroupAfter: function(cm) {cm.deleteH(1, "group");},
indentAuto: function(cm) {cm.indentSelection("smart");},
indentMore: function(cm) {cm.indentSelection("add");},
indentLess: function(cm) {cm.indentSelection("subtract");},
insertTab: function(cm) {cm.replaceSelection("\t", "end", "+input");},
defaultTab: function(cm) {
if (cm.somethingSelected()) cm.indentSelection("add");
else cm.replaceSelection("\t", "end", "+input");
},
transposeChars: function(cm) {
var cur = cm.getCursor(), line = cm.getLine(cur.line);
if (cur.ch > 0 && cur.ch < line.length - 1)
cm.replaceRange(line.charAt(cur.ch) + line.charAt(cur.ch - 1),
Pos(cur.line, cur.ch - 1), Pos(cur.line, cur.ch + 1));
},
newlineAndIndent: function(cm) {
operation(cm, function() {
cm.replaceSelection("\n", "end", "+input");
cm.indentLine(cm.getCursor().line, null, true);
})();
},
toggleOverwrite: function(cm) {cm.toggleOverwrite();}
};
// STANDARD KEYMAPS
var keyMap = CodeMirror.keyMap = {};
keyMap.basic = {
"Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
"End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
"Delete": "delCharAfter", "Backspace": "delCharBefore", "Tab": "defaultTab", "Shift-Tab": "indentAuto",
"Enter": "newlineAndIndent", "Insert": "toggleOverwrite"
};
// Note that the save and find-related commands aren't defined by
// default. Unknown commands are simply ignored.
keyMap.pcDefault = {
"Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
"Ctrl-Home": "goDocStart", "Alt-Up": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Down": "goDocEnd",
"Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
"Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
"Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
"Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
fallthrough: "basic"
};
keyMap.macDefault = {
"Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
"Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
"Alt-Right": "goGroupRight", "Cmd-Left": "goLineStart", "Cmd-Right": "goLineEnd", "Alt-Backspace": "delGroupBefore",
"Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
"Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
"Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delLineLeft",
fallthrough: ["basic", "emacsy"]
};
keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault;
keyMap.emacsy = {
"Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
"Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
"Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
"Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars"
};
// KEYMAP DISPATCH
function getKeyMap(val) {
if (typeof val == "string") return keyMap[val];
else return val;
}
function lookupKey(name, maps, handle) {
function lookup(map) {
map = getKeyMap(map);
var found = map[name];
if (found === false) return "stop";
if (found != null && handle(found)) return true;
if (map.nofallthrough) return "stop";
var fallthrough = map.fallthrough;
if (fallthrough == null) return false;
if (Object.prototype.toString.call(fallthrough) != "[object Array]")
return lookup(fallthrough);
for (var i = 0, e = fallthrough.length; i < e; ++i) {
var done = lookup(fallthrough[i]);
if (done) return done;
}
return false;
}
for (var i = 0; i < maps.length; ++i) {
var done = lookup(maps[i]);
if (done) return done != "stop";
}
}
function isModifierKey(event) {
var name = keyNames[event.keyCode];
return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod";
}
function keyName(event, noShift) {
if (opera && event.keyCode == 34 && event["char"]) return false;
var name = keyNames[event.keyCode];
if (name == null || event.altGraphKey) return false;
if (event.altKey) name = "Alt-" + name;
if (flipCtrlCmd ? event.metaKey : event.ctrlKey) name = "Ctrl-" + name;
if (flipCtrlCmd ? event.ctrlKey : event.metaKey) name = "Cmd-" + name;
if (!noShift && event.shiftKey) name = "Shift-" + name;
return name;
}
CodeMirror.lookupKey = lookupKey;
CodeMirror.isModifierKey = isModifierKey;
CodeMirror.keyName = keyName;
// FROMTEXTAREA
CodeMirror.fromTextArea = function(textarea, options) {
if (!options) options = {};
options.value = textarea.value;
if (!options.tabindex && textarea.tabindex)
options.tabindex = textarea.tabindex;
if (!options.placeholder && textarea.placeholder)
options.placeholder = textarea.placeholder;
// Set autofocus to true if this textarea is focused, or if it has
// autofocus and no other element is focused.
if (options.autofocus == null) {
var hasFocus = document.body;
// doc.activeElement occasionally throws on IE
try { hasFocus = document.activeElement; } catch(e) {}
options.autofocus = hasFocus == textarea ||
textarea.getAttribute("autofocus") != null && hasFocus == document.body;
}
function save() {textarea.value = cm.getValue();}
if (textarea.form) {
on(textarea.form, "submit", save);
// Deplorable hack to make the submit method do the right thing.
if (!options.leaveSubmitMethodAlone) {
var form = textarea.form, realSubmit = form.submit;
try {
var wrappedSubmit = form.submit = function() {
save();
form.submit = realSubmit;
form.submit();
form.submit = wrappedSubmit;
};
} catch(e) {}
}
}
textarea.style.display = "none";
var cm = CodeMirror(function(node) {
textarea.parentNode.insertBefore(node, textarea.nextSibling);
}, options);
cm.save = save;
cm.getTextArea = function() { return textarea; };
cm.toTextArea = function() {
save();
textarea.parentNode.removeChild(cm.getWrapperElement());
textarea.style.display = "";
if (textarea.form) {
off(textarea.form, "submit", save);
if (typeof textarea.form.submit == "function")
textarea.form.submit = realSubmit;
}
};
return cm;
};
// STRING STREAM
// Fed to the mode parsers, provides helper functions to make
// parsers more succinct.
// The character stream used by a mode's parser.
function StringStream(string, tabSize) {
this.pos = this.start = 0;
this.string = string;
this.tabSize = tabSize || 8;
this.lastColumnPos = this.lastColumnValue = 0;
}
StringStream.prototype = {
eol: function() {return this.pos >= this.string.length;},
sol: function() {return this.pos == 0;},
peek: function() {return this.string.charAt(this.pos) || undefined;},
next: function() {
if (this.pos < this.string.length)
return this.string.charAt(this.pos++);
},
eat: function(match) {
var ch = this.string.charAt(this.pos);
if (typeof match == "string") var ok = ch == match;
else var ok = ch && (match.test ? match.test(ch) : match(ch));
if (ok) {++this.pos; return ch;}
},
eatWhile: function(match) {
var start = this.pos;
while (this.eat(match)){}
return this.pos > start;
},
eatSpace: function() {
var start = this.pos;
while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos;
return this.pos > start;
},
skipToEnd: function() {this.pos = this.string.length;},
skipTo: function(ch) {
var found = this.string.indexOf(ch, this.pos);
if (found > -1) {this.pos = found; return true;}
},
backUp: function(n) {this.pos -= n;},
column: function() {
if (this.lastColumnPos < this.start) {
this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue);
this.lastColumnPos = this.start;
}
return this.lastColumnValue;
},
indentation: function() {return countColumn(this.string, null, this.tabSize);},
match: function(pattern, consume, caseInsensitive) {
if (typeof pattern == "string") {
var cased = function(str) {return caseInsensitive ? str.toLowerCase() : str;};
var substr = this.string.substr(this.pos, pattern.length);
if (cased(substr) == cased(pattern)) {
if (consume !== false) this.pos += pattern.length;
return true;
}
} else {
var match = this.string.slice(this.pos).match(pattern);
if (match && match.index > 0) return null;
if (match && consume !== false) this.pos += match[0].length;
return match;
}
},
current: function(){return this.string.slice(this.start, this.pos);}
};
CodeMirror.StringStream = StringStream;
// TEXTMARKERS
function TextMarker(doc, type) {
this.lines = [];
this.type = type;
this.doc = doc;
}
CodeMirror.TextMarker = TextMarker;
TextMarker.prototype.clear = function() {
if (this.explicitlyCleared) return;
var cm = this.doc.cm, withOp = cm && !cm.curOp;
if (withOp) startOperation(cm);
var min = null, max = null;
for (var i = 0; i < this.lines.length; ++i) {
var line = this.lines[i];
var span = getMarkedSpanFor(line.markedSpans, this);
if (span.to != null) max = lineNo(line);
line.markedSpans = removeMarkedSpan(line.markedSpans, span);
if (span.from != null)
min = lineNo(line);
else if (this.collapsed && !lineIsHidden(this.doc, line) && cm)
updateLineHeight(line, textHeight(cm.display));
}
if (cm && this.collapsed && !cm.options.lineWrapping) for (var i = 0; i < this.lines.length; ++i) {
var visual = visualLine(cm.doc, this.lines[i]), len = lineLength(cm.doc, visual);
if (len > cm.display.maxLineLength) {
cm.display.maxLine = visual;
cm.display.maxLineLength = len;
cm.display.maxLineChanged = true;
}
}
if (min != null && cm) regChange(cm, min, max + 1);
this.lines.length = 0;
this.explicitlyCleared = true;
if (this.atomic && this.doc.cantEdit) {
this.doc.cantEdit = false;
if (cm) reCheckSelection(cm);
}
if (withOp) endOperation(cm);
signalLater(this, "clear");
};
TextMarker.prototype.find = function() {
var from, to;
for (var i = 0; i < this.lines.length; ++i) {
var line = this.lines[i];
var span = getMarkedSpanFor(line.markedSpans, this);
if (span.from != null || span.to != null) {
var found = lineNo(line);
if (span.from != null) from = Pos(found, span.from);
if (span.to != null) to = Pos(found, span.to);
}
}
if (this.type == "bookmark") return from;
return from && {from: from, to: to};
};
TextMarker.prototype.changed = function() {
var pos = this.find(), cm = this.doc.cm;
if (!pos || !cm) return;
var line = getLine(this.doc, pos.from.line);
clearCachedMeasurement(cm, line);
if (pos.from.line >= cm.display.showingFrom && pos.from.line < cm.display.showingTo) {
for (var node = cm.display.lineDiv.firstChild; node; node = node.nextSibling) if (node.lineObj == line) {
if (node.offsetHeight != line.height) updateLineHeight(line, node.offsetHeight);
break;
}
runInOp(cm, function() { cm.curOp.selectionChanged = true; });
}
};
TextMarker.prototype.attachLine = function(line) {
if (!this.lines.length && this.doc.cm) {
var op = this.doc.cm.curOp;
if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
(op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this);
}
this.lines.push(line);
};
TextMarker.prototype.detachLine = function(line) {
this.lines.splice(indexOf(this.lines, line), 1);
if (!this.lines.length && this.doc.cm) {
var op = this.doc.cm.curOp;
(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this);
}
};
function markText(doc, from, to, options, type) {
if (options && options.shared) return markTextShared(doc, from, to, options, type);
if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type);
var marker = new TextMarker(doc, type);
if (type == "range" && !posLess(from, to)) return marker;
if (options) copyObj(options, marker);
if (marker.replacedWith) {
marker.collapsed = true;
marker.replacedWith = elt("span", [marker.replacedWith], "CodeMirror-widget");
if (!options.handleMouseEvents) marker.replacedWith.ignoreEvents = true;
}
if (marker.collapsed) sawCollapsedSpans = true;
if (marker.addToHistory)
addToHistory(doc, {from: from, to: to, origin: "markText"},
{head: doc.sel.head, anchor: doc.sel.anchor}, NaN);
var curLine = from.line, size = 0, collapsedAtStart, collapsedAtEnd, cm = doc.cm, updateMaxLine;
doc.iter(curLine, to.line + 1, function(line) {
if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(doc, line) == cm.display.maxLine)
updateMaxLine = true;
var span = {from: null, to: null, marker: marker};
size += line.text.length;
if (curLine == from.line) {span.from = from.ch; size -= from.ch;}
if (curLine == to.line) {span.to = to.ch; size -= line.text.length - to.ch;}
if (marker.collapsed) {
if (curLine == to.line) collapsedAtEnd = collapsedSpanAt(line, to.ch);
if (curLine == from.line) collapsedAtStart = collapsedSpanAt(line, from.ch);
else updateLineHeight(line, 0);
}
addMarkedSpan(line, span);
++curLine;
});
if (marker.collapsed) doc.iter(from.line, to.line + 1, function(line) {
if (lineIsHidden(doc, line)) updateLineHeight(line, 0);
});
if (marker.clearOnEnter) on(marker, "beforeCursorEnter", function() { marker.clear(); });
if (marker.readOnly) {
sawReadOnlySpans = true;
if (doc.history.done.length || doc.history.undone.length)
doc.clearHistory();
}
if (marker.collapsed) {
if (collapsedAtStart != collapsedAtEnd)
throw new Error("Inserting collapsed marker overlapping an existing one");
marker.size = size;
marker.atomic = true;
}
if (cm) {
if (updateMaxLine) cm.curOp.updateMaxLine = true;
if (marker.className || marker.startStyle || marker.endStyle || marker.collapsed)
regChange(cm, from.line, to.line + 1);
if (marker.atomic) reCheckSelection(cm);
}
return marker;
}
// SHARED TEXTMARKERS
function SharedTextMarker(markers, primary) {
this.markers = markers;
this.primary = primary;
for (var i = 0, me = this; i < markers.length; ++i) {
markers[i].parent = this;
on(markers[i], "clear", function(){me.clear();});
}
}
CodeMirror.SharedTextMarker = SharedTextMarker;
SharedTextMarker.prototype.clear = function() {
if (this.explicitlyCleared) return;
this.explicitlyCleared = true;
for (var i = 0; i < this.markers.length; ++i)
this.markers[i].clear();
signalLater(this, "clear");
};
SharedTextMarker.prototype.find = function() {
return this.primary.find();
};
function markTextShared(doc, from, to, options, type) {
options = copyObj(options);
options.shared = false;
var markers = [markText(doc, from, to, options, type)], primary = markers[0];
var widget = options.replacedWith;
linkedDocs(doc, function(doc) {
if (widget) options.replacedWith = widget.cloneNode(true);
markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type));
for (var i = 0; i < doc.linked.length; ++i)
if (doc.linked[i].isParent) return;
primary = lst(markers);
});
return new SharedTextMarker(markers, primary);
}
// TEXTMARKER SPANS
function getMarkedSpanFor(spans, marker) {
if (spans) for (var i = 0; i < spans.length; ++i) {
var span = spans[i];
if (span.marker == marker) return span;
}
}
function removeMarkedSpan(spans, span) {
for (var r, i = 0; i < spans.length; ++i)
if (spans[i] != span) (r || (r = [])).push(spans[i]);
return r;
}
function addMarkedSpan(line, span) {
line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span];
span.marker.attachLine(line);
}
function markedSpansBefore(old, startCh, isInsert) {
if (old) for (var i = 0, nw; i < old.length; ++i) {
var span = old[i], marker = span.marker;
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh);
if (startsBefore || marker.type == "bookmark" && span.from == startCh && (!isInsert || !span.marker.insertLeft)) {
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh);
(nw || (nw = [])).push({from: span.from,
to: endsAfter ? null : span.to,
marker: marker});
}
}
return nw;
}
function markedSpansAfter(old, endCh, isInsert) {
if (old) for (var i = 0, nw; i < old.length; ++i) {
var span = old[i], marker = span.marker;
var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh);
if (endsAfter || marker.type == "bookmark" && span.from == endCh && (!isInsert || span.marker.insertLeft)) {
var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh);
(nw || (nw = [])).push({from: startsBefore ? null : span.from - endCh,
to: span.to == null ? null : span.to - endCh,
marker: marker});
}
}
return nw;
}
function stretchSpansOverChange(doc, change) {
var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans;
var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans;
if (!oldFirst && !oldLast) return null;
var startCh = change.from.ch, endCh = change.to.ch, isInsert = posEq(change.from, change.to);
// Get the spans that 'stick out' on both sides
var first = markedSpansBefore(oldFirst, startCh, isInsert);
var last = markedSpansAfter(oldLast, endCh, isInsert);
// Next, merge those two ends
var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0);
if (first) {
// Fix up .to properties of first
for (var i = 0; i < first.length; ++i) {
var span = first[i];
if (span.to == null) {
var found = getMarkedSpanFor(last, span.marker);
if (!found) span.to = startCh;
else if (sameLine) span.to = found.to == null ? null : found.to + offset;
}
}
}
if (last) {
// Fix up .from in last (or move them into first in case of sameLine)
for (var i = 0; i < last.length; ++i) {
var span = last[i];
if (span.to != null) span.to += offset;
if (span.from == null) {
var found = getMarkedSpanFor(first, span.marker);
if (!found) {
span.from = offset;
if (sameLine) (first || (first = [])).push(span);
}
} else {
span.from += offset;
if (sameLine) (first || (first = [])).push(span);
}
}
}
if (sameLine && first) {
// Make sure we didn't create any zero-length spans
for (var i = 0; i < first.length; ++i)
if (first[i].from != null && first[i].from == first[i].to && first[i].marker.type != "bookmark")
first.splice(i--, 1);
if (!first.length) first = null;
}
var newMarkers = [first];
if (!sameLine) {
// Fill gap with whole-line-spans
var gap = change.text.length - 2, gapMarkers;
if (gap > 0 && first)
for (var i = 0; i < first.length; ++i)
if (first[i].to == null)
(gapMarkers || (gapMarkers = [])).push({from: null, to: null, marker: first[i].marker});
for (var i = 0; i < gap; ++i)
newMarkers.push(gapMarkers);
newMarkers.push(last);
}
return newMarkers;
}
function mergeOldSpans(doc, change) {
var old = getOldSpans(doc, change);
var stretched = stretchSpansOverChange(doc, change);
if (!old) return stretched;
if (!stretched) return old;
for (var i = 0; i < old.length; ++i) {
var oldCur = old[i], stretchCur = stretched[i];
if (oldCur && stretchCur) {
spans: for (var j = 0; j < stretchCur.length; ++j) {
var span = stretchCur[j];
for (var k = 0; k < oldCur.length; ++k)
if (oldCur[k].marker == span.marker) continue spans;
oldCur.push(span);
}
} else if (stretchCur) {
old[i] = stretchCur;
}
}
return old;
}
function removeReadOnlyRanges(doc, from, to) {
var markers = null;
doc.iter(from.line, to.line + 1, function(line) {
if (line.markedSpans) for (var i = 0; i < line.markedSpans.length; ++i) {
var mark = line.markedSpans[i].marker;
if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
(markers || (markers = [])).push(mark);
}
});
if (!markers) return null;
var parts = [{from: from, to: to}];
for (var i = 0; i < markers.length; ++i) {
var mk = markers[i], m = mk.find();
for (var j = 0; j < parts.length; ++j) {
var p = parts[j];
if (posLess(p.to, m.from) || posLess(m.to, p.from)) continue;
var newParts = [j, 1];
if (posLess(p.from, m.from) || !mk.inclusiveLeft && posEq(p.from, m.from))
newParts.push({from: p.from, to: m.from});
if (posLess(m.to, p.to) || !mk.inclusiveRight && posEq(p.to, m.to))
newParts.push({from: m.to, to: p.to});
parts.splice.apply(parts, newParts);
j += newParts.length - 1;
}
}
return parts;
}
function collapsedSpanAt(line, ch) {
var sps = sawCollapsedSpans && line.markedSpans, found;
if (sps) for (var sp, i = 0; i < sps.length; ++i) {
sp = sps[i];
if (!sp.marker.collapsed) continue;
if ((sp.from == null || sp.from < ch) &&
(sp.to == null || sp.to > ch) &&
(!found || found.width < sp.marker.width))
found = sp.marker;
}
return found;
}
function collapsedSpanAtStart(line) { return collapsedSpanAt(line, -1); }
function collapsedSpanAtEnd(line) { return collapsedSpanAt(line, line.text.length + 1); }
function visualLine(doc, line) {
var merged;
while (merged = collapsedSpanAtStart(line))
line = getLine(doc, merged.find().from.line);
return line;
}
function lineIsHidden(doc, line) {
var sps = sawCollapsedSpans && line.markedSpans;
if (sps) for (var sp, i = 0; i < sps.length; ++i) {
sp = sps[i];
if (!sp.marker.collapsed) continue;
if (sp.from == null) return true;
if (sp.marker.replacedWith) continue;
if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
return true;
}
}
function lineIsHiddenInner(doc, line, span) {
if (span.to == null) {
var end = span.marker.find().to, endLine = getLine(doc, end.line);
return lineIsHiddenInner(doc, endLine, getMarkedSpanFor(endLine.markedSpans, span.marker));
}
if (span.marker.inclusiveRight && span.to == line.text.length)
return true;
for (var sp, i = 0; i < line.markedSpans.length; ++i) {
sp = line.markedSpans[i];
if (sp.marker.collapsed && !sp.marker.replacedWith && sp.from == span.to &&
(sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
lineIsHiddenInner(doc, line, sp)) return true;
}
}
function detachMarkedSpans(line) {
var spans = line.markedSpans;
if (!spans) return;
for (var i = 0; i < spans.length; ++i)
spans[i].marker.detachLine(line);
line.markedSpans = null;
}
function attachMarkedSpans(line, spans) {
if (!spans) return;
for (var i = 0; i < spans.length; ++i)
spans[i].marker.attachLine(line);
line.markedSpans = spans;
}
// LINE WIDGETS
var LineWidget = CodeMirror.LineWidget = function(cm, node, options) {
for (var opt in options) if (options.hasOwnProperty(opt))
this[opt] = options[opt];
this.cm = cm;
this.node = node;
};
function widgetOperation(f) {
return function() {
var withOp = !this.cm.curOp;
if (withOp) startOperation(this.cm);
try {var result = f.apply(this, arguments);}
finally {if (withOp) endOperation(this.cm);}
return result;
};
}
LineWidget.prototype.clear = widgetOperation(function() {
var ws = this.line.widgets, no = lineNo(this.line);
if (no == null || !ws) return;
for (var i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1);
if (!ws.length) this.line.widgets = null;
updateLineHeight(this.line, Math.max(0, this.line.height - widgetHeight(this)));
regChange(this.cm, no, no + 1);
});
LineWidget.prototype.changed = widgetOperation(function() {
var oldH = this.height;
this.height = null;
var diff = widgetHeight(this) - oldH;
if (!diff) return;
updateLineHeight(this.line, this.line.height + diff);
var no = lineNo(this.line);
regChange(this.cm, no, no + 1);
});
function widgetHeight(widget) {
if (widget.height != null) return widget.height;
if (!widget.node.parentNode || widget.node.parentNode.nodeType != 1)
removeChildrenAndAdd(widget.cm.display.measure, elt("div", [widget.node], null, "position: relative"));
return widget.height = widget.node.offsetHeight;
}
function addLineWidget(cm, handle, node, options) {
var widget = new LineWidget(cm, node, options);
if (widget.noHScroll) cm.display.alignWidgets = true;
changeLine(cm, handle, function(line) {
(line.widgets || (line.widgets = [])).push(widget);
widget.line = line;
if (!lineIsHidden(cm.doc, line) || widget.showIfHidden) {
var aboveVisible = heightAtLine(cm, line) < cm.display.scroller.scrollTop;
updateLineHeight(line, line.height + widgetHeight(widget));
if (aboveVisible) addToScrollPos(cm, 0, widget.height);
}
return true;
});
return widget;
}
// LINE DATA STRUCTURE
// Line objects. These hold state related to a line, including
// highlighting info (the styles array).
function makeLine(text, markedSpans, estimateHeight) {
var line = {text: text};
attachMarkedSpans(line, markedSpans);
line.height = estimateHeight ? estimateHeight(line) : 1;
return line;
}
function updateLine(line, text, markedSpans, estimateHeight) {
line.text = text;
if (line.stateAfter) line.stateAfter = null;
if (line.styles) line.styles = null;
if (line.order != null) line.order = null;
detachMarkedSpans(line);
attachMarkedSpans(line, markedSpans);
var estHeight = estimateHeight ? estimateHeight(line) : 1;
if (estHeight != line.height) updateLineHeight(line, estHeight);
}
function cleanUpLine(line) {
line.parent = null;
detachMarkedSpans(line);
}
// Run the given mode's parser over a line, update the styles
// array, which contains alternating fragments of text and CSS
// classes.
function runMode(cm, text, mode, state, f) {
var flattenSpans = mode.flattenSpans;
if (flattenSpans == null) flattenSpans = cm.options.flattenSpans;
var curStart = 0, curStyle = null;
var stream = new StringStream(text, cm.options.tabSize), style;
if (text == "" && mode.blankLine) mode.blankLine(state);
while (!stream.eol()) {
if (stream.pos > cm.options.maxHighlightLength) {
flattenSpans = false;
// Webkit seems to refuse to render text nodes longer than 57444 characters
stream.pos = Math.min(text.length, stream.start + 50000);
style = null;
} else {
style = mode.token(stream, state);
}
if (!flattenSpans || curStyle != style) {
if (curStart < stream.start) f(stream.start, curStyle);
curStart = stream.start; curStyle = style;
}
stream.start = stream.pos;
}
if (curStart < stream.pos) f(stream.pos, curStyle);
}
function highlightLine(cm, line, state) {
// A styles array always starts with a number identifying the
// mode/overlays that it is based on (for easy invalidation).
var st = [cm.state.modeGen];
// Compute the base array of styles
runMode(cm, line.text, cm.doc.mode, state, function(end, style) {st.push(end, style);});
// Run overlays, adjust style array.
for (var o = 0; o < cm.state.overlays.length; ++o) {
var overlay = cm.state.overlays[o], i = 1, at = 0;
runMode(cm, line.text, overlay.mode, true, function(end, style) {
var start = i;
// Ensure there's a token end at the current position, and that i points at it
while (at < end) {
var i_end = st[i];
if (i_end > end)
st.splice(i, 1, end, st[i+1], i_end);
i += 2;
at = Math.min(end, i_end);
}
if (!style) return;
if (overlay.opaque) {
st.splice(start, i - start, end, style);
i = start + 2;
} else {
for (; start < i; start += 2) {
var cur = st[start+1];
st[start+1] = cur ? cur + " " + style : style;
}
}
});
}
return st;
}
function getLineStyles(cm, line) {
if (!line.styles || line.styles[0] != cm.state.modeGen)
line.styles = highlightLine(cm, line, line.stateAfter = getStateBefore(cm, lineNo(line)));
return line.styles;
}
// Lightweight form of highlight -- proceed over this line and
// update state, but don't save a style array.
function processLine(cm, line, state) {
var mode = cm.doc.mode;
var stream = new StringStream(line.text, cm.options.tabSize);
if (line.text == "" && mode.blankLine) mode.blankLine(state);
while (!stream.eol() && stream.pos <= cm.options.maxHighlightLength) {
mode.token(stream, state);
stream.start = stream.pos;
}
}
var styleToClassCache = {};
function styleToClass(style) {
if (!style) return null;
return styleToClassCache[style] ||
(styleToClassCache[style] = "cm-" + style.replace(/ +/g, " cm-"));
}
function lineContent(cm, realLine, measure) {
var merged, line = realLine, empty = true;
while (merged = collapsedSpanAtStart(line))
line = getLine(cm.doc, merged.find().from.line);
var builder = {pre: elt("pre"), col: 0, pos: 0, display: !measure,
measure: null, measuredSomething: false, cm: cm};
if (line.textClass) builder.pre.className = line.textClass;
do {
if (line.text) empty = false;
builder.measure = line == realLine && measure;
builder.pos = 0;
builder.addToken = builder.measure ? buildTokenMeasure : buildToken;
if ((ie || webkit) && cm.getOption("lineWrapping"))
builder.addToken = buildTokenSplitSpaces(builder.addToken);
var next = insertLineContent(line, builder, getLineStyles(cm, line));
if (measure && line == realLine && !builder.measuredSomething) {
measure[0] = builder.pre.appendChild(zeroWidthElement(cm.display.measure));
builder.measuredSomething = true;
}
if (next) line = getLine(cm.doc, next.to.line);
} while (next);
if (measure && !builder.measuredSomething && !measure[0])
measure[0] = builder.pre.appendChild(empty ? elt("span", "\u00a0") : zeroWidthElement(cm.display.measure));
if (!builder.pre.firstChild && !lineIsHidden(cm.doc, realLine))
builder.pre.appendChild(document.createTextNode("\u00a0"));
var order;
// Work around problem with the reported dimensions of single-char
// direction spans on IE (issue #1129). See also the comment in
// cursorCoords.
if (measure && ie && (order = getOrder(line))) {
var l = order.length - 1;
if (order[l].from == order[l].to) --l;
var last = order[l], prev = order[l - 1];
if (last.from + 1 == last.to && prev && last.level < prev.level) {
var span = measure[builder.pos - 1];
if (span) span.parentNode.insertBefore(span.measureRight = zeroWidthElement(cm.display.measure),
span.nextSibling);
}
}
signal(cm, "renderLine", cm, realLine, builder.pre);
return builder.pre;
}
var tokenSpecialChars = /[\t\u0000-\u0019\u00ad\u200b\u2028\u2029\uFEFF]/g;
function buildToken(builder, text, style, startStyle, endStyle) {
if (!text) return;
if (!tokenSpecialChars.test(text)) {
builder.col += text.length;
var content = document.createTextNode(text);
} else {
var content = document.createDocumentFragment(), pos = 0;
while (true) {
tokenSpecialChars.lastIndex = pos;
var m = tokenSpecialChars.exec(text);
var skipped = m ? m.index - pos : text.length - pos;
if (skipped) {
content.appendChild(document.createTextNode(text.slice(pos, pos + skipped)));
builder.col += skipped;
}
if (!m) break;
pos += skipped + 1;
if (m[0] == "\t") {
var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize;
content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"));
builder.col += tabWidth;
} else {
var token = elt("span", "\u2022", "cm-invalidchar");
token.title = "\\u" + m[0].charCodeAt(0).toString(16);
content.appendChild(token);
builder.col += 1;
}
}
}
if (style || startStyle || endStyle || builder.measure) {
var fullStyle = style || "";
if (startStyle) fullStyle += startStyle;
if (endStyle) fullStyle += endStyle;
return builder.pre.appendChild(elt("span", [content], fullStyle));
}
builder.pre.appendChild(content);
}
function buildTokenMeasure(builder, text, style, startStyle, endStyle) {
var wrapping = builder.cm.options.lineWrapping;
for (var i = 0; i < text.length; ++i) {
var ch = text.charAt(i), start = i == 0;
if (ch >= "\ud800" && ch < "\udbff" && i < text.length - 1) {
ch = text.slice(i, i + 2);
++i;
} else if (i && wrapping && spanAffectsWrapping(text, i)) {
builder.pre.appendChild(elt("wbr"));
}
var span = builder.measure[builder.pos] =
buildToken(builder, ch, style,
start && startStyle, i == text.length - 1 && endStyle);
// In IE single-space nodes wrap differently than spaces
// embedded in larger text nodes, except when set to
// white-space: normal (issue #1268).
if (ie && wrapping && ch == " " && i && !/\s/.test(text.charAt(i - 1)) &&
i < text.length - 1 && !/\s/.test(text.charAt(i + 1)))
span.style.whiteSpace = "normal";
builder.pos += ch.length;
}
if (text.length) builder.measuredSomething = true;
}
function buildTokenSplitSpaces(inner) {
function split(old) {
var out = " ";
for (var i = 0; i < old.length - 2; ++i) out += i % 2 ? " " : "\u00a0";
out += " ";
return out;
}
return function(builder, text, style, startStyle, endStyle) {
return inner(builder, text.replace(/ {3,}/, split), style, startStyle, endStyle);
};
}
function buildCollapsedSpan(builder, size, widget) {
if (widget) {
if (!builder.display) widget = widget.cloneNode(true);
if (builder.measure) {
builder.measure[builder.pos] = size ? widget
: builder.pre.appendChild(zeroWidthElement(builder.cm.display.measure));
builder.measuredSomething = true;
}
builder.pre.appendChild(widget);
}
builder.pos += size;
}
// Outputs a number of spans to make up a line, taking highlighting
// and marked text into account.
function insertLineContent(line, builder, styles) {
var spans = line.markedSpans, allText = line.text, at = 0;
if (!spans) {
for (var i = 1; i < styles.length; i+=2)
builder.addToken(builder, allText.slice(at, at = styles[i]), styleToClass(styles[i+1]));
return;
}
var len = allText.length, pos = 0, i = 1, text = "", style;
var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed;
for (;;) {
if (nextChange == pos) { // Update current marker set
spanStyle = spanEndStyle = spanStartStyle = "";
collapsed = null; nextChange = Infinity;
var foundBookmark = null;
for (var j = 0; j < spans.length; ++j) {
var sp = spans[j], m = sp.marker;
if (sp.from <= pos && (sp.to == null || sp.to > pos)) {
if (sp.to != null && nextChange > sp.to) { nextChange = sp.to; spanEndStyle = ""; }
if (m.className) spanStyle += " " + m.className;
if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle;
if (m.endStyle && sp.to == nextChange) spanEndStyle += " " + m.endStyle;
if (m.collapsed && (!collapsed || collapsed.marker.size < m.size))
collapsed = sp;
} else if (sp.from > pos && nextChange > sp.from) {
nextChange = sp.from;
}
if (m.type == "bookmark" && sp.from == pos && m.replacedWith)
foundBookmark = m.replacedWith;
}
if (collapsed && (collapsed.from || 0) == pos) {
buildCollapsedSpan(builder, (collapsed.to == null ? len : collapsed.to) - pos,
collapsed.from != null && collapsed.marker.replacedWith);
if (collapsed.to == null) return collapsed.marker.find();
}
if (foundBookmark && !collapsed) buildCollapsedSpan(builder, 0, foundBookmark);
}
if (pos >= len) break;
var upto = Math.min(len, nextChange);
while (true) {
if (text) {
var end = pos + text.length;
if (!collapsed) {
var tokenText = end > upto ? text.slice(0, upto - pos) : text;
builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "");
}
if (end >= upto) {text = text.slice(upto - pos); pos = upto; break;}
pos = end;
spanStartStyle = "";
}
text = allText.slice(at, at = styles[i++]);
style = styleToClass(styles[i++]);
}
}
}
// DOCUMENT DATA STRUCTURE
function updateDoc(doc, change, markedSpans, selAfter, estimateHeight) {
function spansFor(n) {return markedSpans ? markedSpans[n] : null;}
function update(line, text, spans) {
updateLine(line, text, spans, estimateHeight);
signalLater(line, "change", line, change);
}
var from = change.from, to = change.to, text = change.text;
var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line);
var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line;
// First adjust the line structure
if (from.ch == 0 && to.ch == 0 && lastText == "") {
// This is a whole-line replace. Treated specially to make
// sure line objects move the way they are supposed to.
for (var i = 0, e = text.length - 1, added = []; i < e; ++i)
added.push(makeLine(text[i], spansFor(i), estimateHeight));
update(lastLine, lastLine.text, lastSpans);
if (nlines) doc.remove(from.line, nlines);
if (added.length) doc.insert(from.line, added);
} else if (firstLine == lastLine) {
if (text.length == 1) {
update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans);
} else {
for (var added = [], i = 1, e = text.length - 1; i < e; ++i)
added.push(makeLine(text[i], spansFor(i), estimateHeight));
added.push(makeLine(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight));
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
doc.insert(from.line + 1, added);
}
} else if (text.length == 1) {
update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0));
doc.remove(from.line + 1, nlines);
} else {
update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0));
update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans);
for (var i = 1, e = text.length - 1, added = []; i < e; ++i)
added.push(makeLine(text[i], spansFor(i), estimateHeight));
if (nlines > 1) doc.remove(from.line + 1, nlines - 1);
doc.insert(from.line + 1, added);
}
signalLater(doc, "change", doc, change);
setSelection(doc, selAfter.anchor, selAfter.head, null, true);
}
function LeafChunk(lines) {
this.lines = lines;
this.parent = null;
for (var i = 0, e = lines.length, height = 0; i < e; ++i) {
lines[i].parent = this;
height += lines[i].height;
}
this.height = height;
}
LeafChunk.prototype = {
chunkSize: function() { return this.lines.length; },
removeInner: function(at, n) {
for (var i = at, e = at + n; i < e; ++i) {
var line = this.lines[i];
this.height -= line.height;
cleanUpLine(line);
signalLater(line, "delete");
}
this.lines.splice(at, n);
},
collapse: function(lines) {
lines.splice.apply(lines, [lines.length, 0].concat(this.lines));
},
insertInner: function(at, lines, height) {
this.height += height;
this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at));
for (var i = 0, e = lines.length; i < e; ++i) lines[i].parent = this;
},
iterN: function(at, n, op) {
for (var e = at + n; at < e; ++at)
if (op(this.lines[at])) return true;
}
};
function BranchChunk(children) {
this.children = children;
var size = 0, height = 0;
for (var i = 0, e = children.length; i < e; ++i) {
var ch = children[i];
size += ch.chunkSize(); height += ch.height;
ch.parent = this;
}
this.size = size;
this.height = height;
this.parent = null;
}
BranchChunk.prototype = {
chunkSize: function() { return this.size; },
removeInner: function(at, n) {
this.size -= n;
for (var i = 0; i < this.children.length; ++i) {
var child = this.children[i], sz = child.chunkSize();
if (at < sz) {
var rm = Math.min(n, sz - at), oldHeight = child.height;
child.removeInner(at, rm);
this.height -= oldHeight - child.height;
if (sz == rm) { this.children.splice(i--, 1); child.parent = null; }
if ((n -= rm) == 0) break;
at = 0;
} else at -= sz;
}
if (this.size - n < 25) {
var lines = [];
this.collapse(lines);
this.children = [new LeafChunk(lines)];
this.children[0].parent = this;
}
},
collapse: function(lines) {
for (var i = 0, e = this.children.length; i < e; ++i) this.children[i].collapse(lines);
},
insertInner: function(at, lines, height) {
this.size += lines.length;
this.height += height;
for (var i = 0, e = this.children.length; i < e; ++i) {
var child = this.children[i], sz = child.chunkSize();
if (at <= sz) {
child.insertInner(at, lines, height);
if (child.lines && child.lines.length > 50) {
while (child.lines.length > 50) {
var spilled = child.lines.splice(child.lines.length - 25, 25);
var newleaf = new LeafChunk(spilled);
child.height -= newleaf.height;
this.children.splice(i + 1, 0, newleaf);
newleaf.parent = this;
}
this.maybeSpill();
}
break;
}
at -= sz;
}
},
maybeSpill: function() {
if (this.children.length <= 10) return;
var me = this;
do {
var spilled = me.children.splice(me.children.length - 5, 5);
var sibling = new BranchChunk(spilled);
if (!me.parent) { // Become the parent node
var copy = new BranchChunk(me.children);
copy.parent = me;
me.children = [copy, sibling];
me = copy;
} else {
me.size -= sibling.size;
me.height -= sibling.height;
var myIndex = indexOf(me.parent.children, me);
me.parent.children.splice(myIndex + 1, 0, sibling);
}
sibling.parent = me.parent;
} while (me.children.length > 10);
me.parent.maybeSpill();
},
iterN: function(at, n, op) {
for (var i = 0, e = this.children.length; i < e; ++i) {
var child = this.children[i], sz = child.chunkSize();
if (at < sz) {
var used = Math.min(n, sz - at);
if (child.iterN(at, used, op)) return true;
if ((n -= used) == 0) break;
at = 0;
} else at -= sz;
}
}
};
var nextDocId = 0;
var Doc = CodeMirror.Doc = function(text, mode, firstLine) {
if (!(this instanceof Doc)) return new Doc(text, mode, firstLine);
if (firstLine == null) firstLine = 0;
BranchChunk.call(this, [new LeafChunk([makeLine("", null)])]);
this.first = firstLine;
this.scrollTop = this.scrollLeft = 0;
this.cantEdit = false;
this.history = makeHistory();
this.cleanGeneration = 1;
this.frontier = firstLine;
var start = Pos(firstLine, 0);
this.sel = {from: start, to: start, head: start, anchor: start, shift: false, extend: false, goalColumn: null};
this.id = ++nextDocId;
this.modeOption = mode;
if (typeof text == "string") text = splitLines(text);
updateDoc(this, {from: start, to: start, text: text}, null, {head: start, anchor: start});
};
Doc.prototype = createObj(BranchChunk.prototype, {
constructor: Doc,
iter: function(from, to, op) {
if (op) this.iterN(from - this.first, to - from, op);
else this.iterN(this.first, this.first + this.size, from);
},
insert: function(at, lines) {
var height = 0;
for (var i = 0, e = lines.length; i < e; ++i) height += lines[i].height;
this.insertInner(at - this.first, lines, height);
},
remove: function(at, n) { this.removeInner(at - this.first, n); },
getValue: function(lineSep) {
var lines = getLines(this, this.first, this.first + this.size);
if (lineSep === false) return lines;
return lines.join(lineSep || "\n");
},
setValue: function(code) {
var top = Pos(this.first, 0), last = this.first + this.size - 1;
makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
text: splitLines(code), origin: "setValue"},
{head: top, anchor: top}, true);
},
replaceRange: function(code, from, to, origin) {
from = clipPos(this, from);
to = to ? clipPos(this, to) : from;
replaceRange(this, code, from, to, origin);
},
getRange: function(from, to, lineSep) {
var lines = getBetween(this, clipPos(this, from), clipPos(this, to));
if (lineSep === false) return lines;
return lines.join(lineSep || "\n");
},
getLine: function(line) {var l = this.getLineHandle(line); return l && l.text;},
setLine: function(line, text) {
if (isLine(this, line))
replaceRange(this, text, Pos(line, 0), clipPos(this, Pos(line)));
},
removeLine: function(line) {
if (line) replaceRange(this, "", clipPos(this, Pos(line - 1)), clipPos(this, Pos(line)));
else replaceRange(this, "", Pos(0, 0), clipPos(this, Pos(1, 0)));
},
getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line);},
getLineNumber: function(line) {return lineNo(line);},
lineCount: function() {return this.size;},
firstLine: function() {return this.first;},
lastLine: function() {return this.first + this.size - 1;},
clipPos: function(pos) {return clipPos(this, pos);},
getCursor: function(start) {
var sel = this.sel, pos;
if (start == null || start == "head") pos = sel.head;
else if (start == "anchor") pos = sel.anchor;
else if (start == "end" || start === false) pos = sel.to;
else pos = sel.from;
return copyPos(pos);
},
somethingSelected: function() {return !posEq(this.sel.head, this.sel.anchor);},
setCursor: docOperation(function(line, ch, extend) {
var pos = clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line);
if (extend) extendSelection(this, pos);
else setSelection(this, pos, pos);
}),
setSelection: docOperation(function(anchor, head) {
setSelection(this, clipPos(this, anchor), clipPos(this, head || anchor));
}),
extendSelection: docOperation(function(from, to) {
extendSelection(this, clipPos(this, from), to && clipPos(this, to));
}),
getSelection: function(lineSep) {return this.getRange(this.sel.from, this.sel.to, lineSep);},
replaceSelection: function(code, collapse, origin) {
makeChange(this, {from: this.sel.from, to: this.sel.to, text: splitLines(code), origin: origin}, collapse || "around");
},
undo: docOperation(function() {makeChangeFromHistory(this, "undo");}),
redo: docOperation(function() {makeChangeFromHistory(this, "redo");}),
setExtending: function(val) {this.sel.extend = val;},
historySize: function() {
var hist = this.history;
return {undo: hist.done.length, redo: hist.undone.length};
},
clearHistory: function() {this.history = makeHistory(this.history.maxGeneration);},
markClean: function() {
this.cleanGeneration = this.changeGeneration();
},
changeGeneration: function() {
this.history.lastOp = this.history.lastOrigin = null;
return this.history.generation;
},
isClean: function (gen) {
return this.history.generation == (gen || this.cleanGeneration);
},
getHistory: function() {
return {done: copyHistoryArray(this.history.done),
undone: copyHistoryArray(this.history.undone)};
},
setHistory: function(histData) {
var hist = this.history = makeHistory(this.history.maxGeneration);
hist.done = histData.done.slice(0);
hist.undone = histData.undone.slice(0);
},
markText: function(from, to, options) {
return markText(this, clipPos(this, from), clipPos(this, to), options, "range");
},
setBookmark: function(pos, options) {
var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
insertLeft: options && options.insertLeft};
pos = clipPos(this, pos);
return markText(this, pos, pos, realOpts, "bookmark");
},
findMarksAt: function(pos) {
pos = clipPos(this, pos);
var markers = [], spans = getLine(this, pos.line).markedSpans;
if (spans) for (var i = 0; i < spans.length; ++i) {
var span = spans[i];
if ((span.from == null || span.from <= pos.ch) &&
(span.to == null || span.to >= pos.ch))
markers.push(span.marker.parent || span.marker);
}
return markers;
},
getAllMarks: function() {
var markers = [];
this.iter(function(line) {
var sps = line.markedSpans;
if (sps) for (var i = 0; i < sps.length; ++i)
if (sps[i].from != null) markers.push(sps[i].marker);
});
return markers;
},
posFromIndex: function(off) {
var ch, lineNo = this.first;
this.iter(function(line) {
var sz = line.text.length + 1;
if (sz > off) { ch = off; return true; }
off -= sz;
++lineNo;
});
return clipPos(this, Pos(lineNo, ch));
},
indexFromPos: function (coords) {
coords = clipPos(this, coords);
var index = coords.ch;
if (coords.line < this.first || coords.ch < 0) return 0;
this.iter(this.first, coords.line, function (line) {
index += line.text.length + 1;
});
return index;
},
copy: function(copyHistory) {
var doc = new Doc(getLines(this, this.first, this.first + this.size), this.modeOption, this.first);
doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft;
doc.sel = {from: this.sel.from, to: this.sel.to, head: this.sel.head, anchor: this.sel.anchor,
shift: this.sel.shift, extend: false, goalColumn: this.sel.goalColumn};
if (copyHistory) {
doc.history.undoDepth = this.history.undoDepth;
doc.setHistory(this.getHistory());
}
return doc;
},
linkedDoc: function(options) {
if (!options) options = {};
var from = this.first, to = this.first + this.size;
if (options.from != null && options.from > from) from = options.from;
if (options.to != null && options.to < to) to = options.to;
var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from);
if (options.sharedHist) copy.history = this.history;
(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist});
copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}];
return copy;
},
unlinkDoc: function(other) {
if (other instanceof CodeMirror) other = other.doc;
if (this.linked) for (var i = 0; i < this.linked.length; ++i) {
var link = this.linked[i];
if (link.doc != other) continue;
this.linked.splice(i, 1);
other.unlinkDoc(this);
break;
}
// If the histories were shared, split them again
if (other.history == this.history) {
var splitIds = [other.id];
linkedDocs(other, function(doc) {splitIds.push(doc.id);}, true);
other.history = makeHistory();
other.history.done = copyHistoryArray(this.history.done, splitIds);
other.history.undone = copyHistoryArray(this.history.undone, splitIds);
}
},
iterLinkedDocs: function(f) {linkedDocs(this, f);},
getMode: function() {return this.mode;},
getEditor: function() {return this.cm;}
});
Doc.prototype.eachLine = Doc.prototype.iter;
// The Doc methods that should be available on CodeMirror instances
var dontDelegate = "iter insert remove copy getEditor".split(" ");
for (var prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
CodeMirror.prototype[prop] = (function(method) {
return function() {return method.apply(this.doc, arguments);};
})(Doc.prototype[prop]);
function linkedDocs(doc, f, sharedHistOnly) {
function propagate(doc, skip, sharedHist) {
if (doc.linked) for (var i = 0; i < doc.linked.length; ++i) {
var rel = doc.linked[i];
if (rel.doc == skip) continue;
var shared = sharedHist && rel.sharedHist;
if (sharedHistOnly && !shared) continue;
f(rel.doc, shared);
propagate(rel.doc, doc, shared);
}
}
propagate(doc, null, true);
}
function attachDoc(cm, doc) {
if (doc.cm) throw new Error("This document is already in use.");
cm.doc = doc;
doc.cm = cm;
estimateLineHeights(cm);
loadMode(cm);
if (!cm.options.lineWrapping) computeMaxLength(cm);
cm.options.mode = doc.modeOption;
regChange(cm);
}
// LINE UTILITIES
function getLine(chunk, n) {
n -= chunk.first;
while (!chunk.lines) {
for (var i = 0;; ++i) {
var child = chunk.children[i], sz = child.chunkSize();
if (n < sz) { chunk = child; break; }
n -= sz;
}
}
return chunk.lines[n];
}
function getBetween(doc, start, end) {
var out = [], n = start.line;
doc.iter(start.line, end.line + 1, function(line) {
var text = line.text;
if (n == end.line) text = text.slice(0, end.ch);
if (n == start.line) text = text.slice(start.ch);
out.push(text);
++n;
});
return out;
}
function getLines(doc, from, to) {
var out = [];
doc.iter(from, to, function(line) { out.push(line.text); });
return out;
}
function updateLineHeight(line, height) {
var diff = height - line.height;
for (var n = line; n; n = n.parent) n.height += diff;
}
function lineNo(line) {
if (line.parent == null) return null;
var cur = line.parent, no = indexOf(cur.lines, line);
for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
for (var i = 0;; ++i) {
if (chunk.children[i] == cur) break;
no += chunk.children[i].chunkSize();
}
}
return no + cur.first;
}
function lineAtHeight(chunk, h) {
var n = chunk.first;
outer: do {
for (var i = 0, e = chunk.children.length; i < e; ++i) {
var child = chunk.children[i], ch = child.height;
if (h < ch) { chunk = child; continue outer; }
h -= ch;
n += child.chunkSize();
}
return n;
} while (!chunk.lines);
for (var i = 0, e = chunk.lines.length; i < e; ++i) {
var line = chunk.lines[i], lh = line.height;
if (h < lh) break;
h -= lh;
}
return n + i;
}
function heightAtLine(cm, lineObj) {
lineObj = visualLine(cm.doc, lineObj);
var h = 0, chunk = lineObj.parent;
for (var i = 0; i < chunk.lines.length; ++i) {
var line = chunk.lines[i];
if (line == lineObj) break;
else h += line.height;
}
for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
for (var i = 0; i < p.children.length; ++i) {
var cur = p.children[i];
if (cur == chunk) break;
else h += cur.height;
}
}
return h;
}
function getOrder(line) {
var order = line.order;
if (order == null) order = line.order = bidiOrdering(line.text);
return order;
}
// HISTORY
function makeHistory(startGen) {
return {
// Arrays of history events. Doing something adds an event to
// done and clears undo. Undoing moves events from done to
// undone, redoing moves them in the other direction.
done: [], undone: [], undoDepth: Infinity,
// Used to track when changes can be merged into a single undo
// event
lastTime: 0, lastOp: null, lastOrigin: null,
// Used by the isClean() method
generation: startGen || 1, maxGeneration: startGen || 1
};
}
function attachLocalSpans(doc, change, from, to) {
var existing = change["spans_" + doc.id], n = 0;
doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function(line) {
if (line.markedSpans)
(existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans;
++n;
});
}
function historyChangeFromChange(doc, change) {
var histChange = {from: change.from, to: changeEnd(change), text: getBetween(doc, change.from, change.to)};
attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);
linkedDocs(doc, function(doc) {attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1);}, true);
return histChange;
}
function addToHistory(doc, change, selAfter, opId) {
var hist = doc.history;
hist.undone.length = 0;
var time = +new Date, cur = lst(hist.done);
if (cur &&
(hist.lastOp == opId ||
hist.lastOrigin == change.origin && change.origin &&
((change.origin.charAt(0) == "+" && doc.cm && hist.lastTime > time - doc.cm.options.historyEventDelay) ||
change.origin.charAt(0) == "*"))) {
// Merge this change into the last event
var last = lst(cur.changes);
if (posEq(change.from, change.to) && posEq(change.from, last.to)) {
// Optimized case for simple insertion -- don't want to add
// new changesets for every character typed
last.to = changeEnd(change);
} else {
// Add new sub-event
cur.changes.push(historyChangeFromChange(doc, change));
}
cur.anchorAfter = selAfter.anchor; cur.headAfter = selAfter.head;
} else {
// Can not be merged, start a new event.
cur = {changes: [historyChangeFromChange(doc, change)],
generation: hist.generation,
anchorBefore: doc.sel.anchor, headBefore: doc.sel.head,
anchorAfter: selAfter.anchor, headAfter: selAfter.head};
hist.done.push(cur);
hist.generation = ++hist.maxGeneration;
while (hist.done.length > hist.undoDepth)
hist.done.shift();
}
hist.lastTime = time;
hist.lastOp = opId;
hist.lastOrigin = change.origin;
}
function removeClearedSpans(spans) {
if (!spans) return null;
for (var i = 0, out; i < spans.length; ++i) {
if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i); }
else if (out) out.push(spans[i]);
}
return !out ? spans : out.length ? out : null;
}
function getOldSpans(doc, change) {
var found = change["spans_" + doc.id];
if (!found) return null;
for (var i = 0, nw = []; i < change.text.length; ++i)
nw.push(removeClearedSpans(found[i]));
return nw;
}
// Used both to provide a JSON-safe object in .getHistory, and, when
// detaching a document, to split the history in two
function copyHistoryArray(events, newGroup) {
for (var i = 0, copy = []; i < events.length; ++i) {
var event = events[i], changes = event.changes, newChanges = [];
copy.push({changes: newChanges, anchorBefore: event.anchorBefore, headBefore: event.headBefore,
anchorAfter: event.anchorAfter, headAfter: event.headAfter});
for (var j = 0; j < changes.length; ++j) {
var change = changes[j], m;
newChanges.push({from: change.from, to: change.to, text: change.text});
if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
if (indexOf(newGroup, Number(m[1])) > -1) {
lst(newChanges)[prop] = change[prop];
delete change[prop];
}
}
}
}
return copy;
}
// Rebasing/resetting history to deal with externally-sourced changes
function rebaseHistSel(pos, from, to, diff) {
if (to < pos.line) {
pos.line += diff;
} else if (from < pos.line) {
pos.line = from;
pos.ch = 0;
}
}
// Tries to rebase an array of history events given a change in the
// document. If the change touches the same lines as the event, the
// event, and everything 'behind' it, is discarded. If the change is
// before the event, the event's positions are updated. Uses a
// copy-on-write scheme for the positions, to avoid having to
// reallocate them all on every rebase, but also avoid problems with
// shared position objects being unsafely updated.
function rebaseHistArray(array, from, to, diff) {
for (var i = 0; i < array.length; ++i) {
var sub = array[i], ok = true;
for (var j = 0; j < sub.changes.length; ++j) {
var cur = sub.changes[j];
if (!sub.copied) { cur.from = copyPos(cur.from); cur.to = copyPos(cur.to); }
if (to < cur.from.line) {
cur.from.line += diff;
cur.to.line += diff;
} else if (from <= cur.to.line) {
ok = false;
break;
}
}
if (!sub.copied) {
sub.anchorBefore = copyPos(sub.anchorBefore); sub.headBefore = copyPos(sub.headBefore);
sub.anchorAfter = copyPos(sub.anchorAfter); sub.readAfter = copyPos(sub.headAfter);
sub.copied = true;
}
if (!ok) {
array.splice(0, i + 1);
i = 0;
} else {
rebaseHistSel(sub.anchorBefore); rebaseHistSel(sub.headBefore);
rebaseHistSel(sub.anchorAfter); rebaseHistSel(sub.headAfter);
}
}
}
function rebaseHist(hist, change) {
var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1;
rebaseHistArray(hist.done, from, to, diff);
rebaseHistArray(hist.undone, from, to, diff);
}
// EVENT OPERATORS
function stopMethod() {e_stop(this);}
// Ensure an event has a stop method.
function addStop(event) {
if (!event.stop) event.stop = stopMethod;
return event;
}
function e_preventDefault(e) {
if (e.preventDefault) e.preventDefault();
else e.returnValue = false;
}
function e_stopPropagation(e) {
if (e.stopPropagation) e.stopPropagation();
else e.cancelBubble = true;
}
function e_defaultPrevented(e) {
return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false;
}
function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);}
CodeMirror.e_stop = e_stop;
CodeMirror.e_preventDefault = e_preventDefault;
CodeMirror.e_stopPropagation = e_stopPropagation;
function e_target(e) {return e.target || e.srcElement;}
function e_button(e) {
var b = e.which;
if (b == null) {
if (e.button & 1) b = 1;
else if (e.button & 2) b = 3;
else if (e.button & 4) b = 2;
}
if (mac && e.ctrlKey && b == 1) b = 3;
return b;
}
// EVENT HANDLING
function on(emitter, type, f) {
if (emitter.addEventListener)
emitter.addEventListener(type, f, false);
else if (emitter.attachEvent)
emitter.attachEvent("on" + type, f);
else {
var map = emitter._handlers || (emitter._handlers = {});
var arr = map[type] || (map[type] = []);
arr.push(f);
}
}
function off(emitter, type, f) {
if (emitter.removeEventListener)
emitter.removeEventListener(type, f, false);
else if (emitter.detachEvent)
emitter.detachEvent("on" + type, f);
else {
var arr = emitter._handlers && emitter._handlers[type];
if (!arr) return;
for (var i = 0; i < arr.length; ++i)
if (arr[i] == f) { arr.splice(i, 1); break; }
}
}
function signal(emitter, type /*, values...*/) {
var arr = emitter._handlers && emitter._handlers[type];
if (!arr) return;
var args = Array.prototype.slice.call(arguments, 2);
for (var i = 0; i < arr.length; ++i) arr[i].apply(null, args);
}
var delayedCallbacks, delayedCallbackDepth = 0;
function signalLater(emitter, type /*, values...*/) {
var arr = emitter._handlers && emitter._handlers[type];
if (!arr) return;
var args = Array.prototype.slice.call(arguments, 2);
if (!delayedCallbacks) {
++delayedCallbackDepth;
delayedCallbacks = [];
setTimeout(fireDelayed, 0);
}
function bnd(f) {return function(){f.apply(null, args);};};
for (var i = 0; i < arr.length; ++i)
delayedCallbacks.push(bnd(arr[i]));
}
function signalDOMEvent(cm, e) {
signal(cm, e.type, cm, e);
return e_defaultPrevented(e);
}
function fireDelayed() {
--delayedCallbackDepth;
var delayed = delayedCallbacks;
delayedCallbacks = null;
for (var i = 0; i < delayed.length; ++i) delayed[i]();
}
function hasHandler(emitter, type) {
var arr = emitter._handlers && emitter._handlers[type];
return arr && arr.length > 0;
}
CodeMirror.on = on; CodeMirror.off = off; CodeMirror.signal = signal;
// MISC UTILITIES
// Number of pixels added to scroller and sizer to hide scrollbar
var scrollerCutOff = 30;
// Returned or thrown by various protocols to signal 'I'm not
// handling this'.
var Pass = CodeMirror.Pass = {toString: function(){return "CodeMirror.Pass";}};
function Delayed() {this.id = null;}
Delayed.prototype = {set: function(ms, f) {clearTimeout(this.id); this.id = setTimeout(f, ms);}};
// Counts the column offset in a string, taking tabs into account.
// Used mostly to find indentation.
function countColumn(string, end, tabSize, startIndex, startValue) {
if (end == null) {
end = string.search(/[^\s\u00a0]/);
if (end == -1) end = string.length;
}
for (var i = startIndex || 0, n = startValue || 0; i < end; ++i) {
if (string.charAt(i) == "\t") n += tabSize - (n % tabSize);
else ++n;
}
return n;
}
CodeMirror.countColumn = countColumn;
var spaceStrs = [""];
function spaceStr(n) {
while (spaceStrs.length <= n)
spaceStrs.push(lst(spaceStrs) + " ");
return spaceStrs[n];
}
function lst(arr) { return arr[arr.length-1]; }
function selectInput(node) {
if (ios) { // Mobile Safari apparently has a bug where select() is broken.
node.selectionStart = 0;
node.selectionEnd = node.value.length;
} else {
// Suppress mysterious IE10 errors
try { node.select(); }
catch(_e) {}
}
}
function indexOf(collection, elt) {
if (collection.indexOf) return collection.indexOf(elt);
for (var i = 0, e = collection.length; i < e; ++i)
if (collection[i] == elt) return i;
return -1;
}
function createObj(base, props) {
function Obj() {}
Obj.prototype = base;
var inst = new Obj();
if (props) copyObj(props, inst);
return inst;
}
function copyObj(obj, target) {
if (!target) target = {};
for (var prop in obj) if (obj.hasOwnProperty(prop)) target[prop] = obj[prop];
return target;
}
function emptyArray(size) {
for (var a = [], i = 0; i < size; ++i) a.push(undefined);
return a;
}
function bind(f) {
var args = Array.prototype.slice.call(arguments, 1);
return function(){return f.apply(null, args);};
}
var nonASCIISingleCaseWordChar = /[\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/;
function isWordChar(ch) {
return /\w/.test(ch) || ch > "\x80" &&
(ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch));
}
function isEmpty(obj) {
for (var n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false;
return true;
}
var isExtendingChar = /[\u0300-\u036F\u0483-\u0487\u0488-\u0489\u0591-\u05BD\u05BF\u05C1-\u05C2\u05C4-\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7-\u06E8\u06EA-\u06ED\uA66F\uA670-\uA672\uA674-\uA67D\uA69F\udc00-\udfff]/;
// DOM UTILITIES
function elt(tag, content, className, style) {
var e = document.createElement(tag);
if (className) e.className = className;
if (style) e.style.cssText = style;
if (typeof content == "string") setTextContent(e, content);
else if (content) for (var i = 0; i < content.length; ++i) e.appendChild(content[i]);
return e;
}
function removeChildren(e) {
for (var count = e.childNodes.length; count > 0; --count)
e.removeChild(e.firstChild);
return e;
}
function removeChildrenAndAdd(parent, e) {
return removeChildren(parent).appendChild(e);
}
function setTextContent(e, str) {
if (ie_lt9) {
e.innerHTML = "";
e.appendChild(document.createTextNode(str));
} else e.textContent = str;
}
function getRect(node) {
return node.getBoundingClientRect();
}
CodeMirror.replaceGetRect = function(f) { getRect = f; };
// FEATURE DETECTION
// Detect drag-and-drop
var dragAndDrop = function() {
// There is *some* kind of drag-and-drop support in IE6-8, but I
// couldn't get it to work yet.
if (ie_lt9) return false;
var div = elt('div');
return "draggable" in div || "dragDrop" in div;
}();
// For a reason I have yet to figure out, some browsers disallow
// word wrapping between certain characters *only* if a new inline
// element is started between them. This makes it hard to reliably
// measure the position of things, since that requires inserting an
// extra span. This terribly fragile set of tests matches the
// character combinations that suffer from this phenomenon on the
// various browsers.
function spanAffectsWrapping() { return false; }
if (gecko) // Only for "$'"
spanAffectsWrapping = function(str, i) {
return str.charCodeAt(i - 1) == 36 && str.charCodeAt(i) == 39;
};
else if (safari && !/Version\/([6-9]|\d\d)\b/.test(navigator.userAgent))
spanAffectsWrapping = function(str, i) {
return /\-[^ \-?]|\?[^ !\'\"\),.\-\/:;\?\]\}]/.test(str.slice(i - 1, i + 1));
};
else if (webkit)
spanAffectsWrapping = function(str, i) {
if (i > 1 && str.charCodeAt(i - 1) == 45 && /\w/.test(str.charAt(i - 2)) && /[^\-?\.]/.test(str.charAt(i)))
return true;
return /[~!#%&*)=+}\]|\"\.>,:;][({[<]|-[^\-?\.\u2010-\u201f\u2026]|\?[\w~`@#$%\^&*(_=+{[|><]|…[\w~`@#$%\^&*(_=+{[><]/.test(str.slice(i - 1, i + 1));
};
var knownScrollbarWidth;
function scrollbarWidth(measure) {
if (knownScrollbarWidth != null) return knownScrollbarWidth;
var test = elt("div", null, null, "width: 50px; height: 50px; overflow-x: scroll");
removeChildrenAndAdd(measure, test);
if (test.offsetWidth)
knownScrollbarWidth = test.offsetHeight - test.clientHeight;
return knownScrollbarWidth || 0;
}
var zwspSupported;
function zeroWidthElement(measure) {
if (zwspSupported == null) {
var test = elt("span", "\u200b");
removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]));
if (measure.firstChild.offsetHeight != 0)
zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !ie_lt8;
}
if (zwspSupported) return elt("span", "\u200b");
else return elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px");
}
// See if "".split is the broken IE version, if so, provide an
// alternative way to split lines.
var splitLines = "\n\nb".split(/\n/).length != 3 ? function(string) {
var pos = 0, result = [], l = string.length;
while (pos <= l) {
var nl = string.indexOf("\n", pos);
if (nl == -1) nl = string.length;
var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl);
var rt = line.indexOf("\r");
if (rt != -1) {
result.push(line.slice(0, rt));
pos += rt + 1;
} else {
result.push(line);
pos = nl + 1;
}
}
return result;
} : function(string){return string.split(/\r\n?|\n/);};
CodeMirror.splitLines = splitLines;
var hasSelection = window.getSelection ? function(te) {
try { return te.selectionStart != te.selectionEnd; }
catch(e) { return false; }
} : function(te) {
try {var range = te.ownerDocument.selection.createRange();}
catch(e) {}
if (!range || range.parentElement() != te) return false;
return range.compareEndPoints("StartToEnd", range) != 0;
};
var hasCopyEvent = (function() {
var e = elt("div");
if ("oncopy" in e) return true;
e.setAttribute("oncopy", "return;");
return typeof e.oncopy == 'function';
})();
// KEY NAMING
var keyNames = {3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
46: "Delete", 59: ";", 91: "Mod", 92: "Mod", 93: "Mod", 109: "-", 107: "=", 127: "Delete",
186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
221: "]", 222: "'", 63276: "PageUp", 63277: "PageDown", 63275: "End", 63273: "Home",
63234: "Left", 63232: "Up", 63235: "Right", 63233: "Down", 63302: "Insert", 63272: "Delete"};
CodeMirror.keyNames = keyNames;
(function() {
// Number keys
for (var i = 0; i < 10; i++) keyNames[i + 48] = String(i);
// Alphabetic keys
for (var i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i);
// Function keys
for (var i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i;
})();
// BIDI HELPERS
function iterateBidiSections(order, from, to, f) {
if (!order) return f(from, to, "ltr");
for (var i = 0; i < order.length; ++i) {
var part = order[i];
if (part.from < to && part.to > from || from == to && part.to == from)
f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr");
}
}
function bidiLeft(part) { return part.level % 2 ? part.to : part.from; }
function bidiRight(part) { return part.level % 2 ? part.from : part.to; }
function lineLeft(line) { var order = getOrder(line); return order ? bidiLeft(order[0]) : 0; }
function lineRight(line) {
var order = getOrder(line);
if (!order) return line.text.length;
return bidiRight(lst(order));
}
function lineStart(cm, lineN) {
var line = getLine(cm.doc, lineN);
var visual = visualLine(cm.doc, line);
if (visual != line) lineN = lineNo(visual);
var order = getOrder(visual);
var ch = !order ? 0 : order[0].level % 2 ? lineRight(visual) : lineLeft(visual);
return Pos(lineN, ch);
}
function lineEnd(cm, lineN) {
var merged, line;
while (merged = collapsedSpanAtEnd(line = getLine(cm.doc, lineN)))
lineN = merged.find().to.line;
var order = getOrder(line);
var ch = !order ? line.text.length : order[0].level % 2 ? lineLeft(line) : lineRight(line);
return Pos(lineN, ch);
}
function compareBidiLevel(order, a, b) {
var linedir = order[0].level;
if (a == linedir) return true;
if (b == linedir) return false;
return a < b;
}
var bidiOther;
function getBidiPartAt(order, pos) {
for (var i = 0, found; i < order.length; ++i) {
var cur = order[i];
if (cur.from < pos && cur.to > pos) { bidiOther = null; return i; }
if (cur.from == pos || cur.to == pos) {
if (found == null) {
found = i;
} else if (compareBidiLevel(order, cur.level, order[found].level)) {
bidiOther = found;
return i;
} else {
bidiOther = i;
return found;
}
}
}
bidiOther = null;
return found;
}
function moveInLine(line, pos, dir, byUnit) {
if (!byUnit) return pos + dir;
do pos += dir;
while (pos > 0 && isExtendingChar.test(line.text.charAt(pos)));
return pos;
}
// This is somewhat involved. It is needed in order to move
// 'visually' through bi-directional text -- i.e., pressing left
// should make the cursor go left, even when in RTL text. The
// tricky part is the 'jumps', where RTL and LTR text touch each
// other. This often requires the cursor offset to move more than
// one unit, in order to visually move one unit.
function moveVisually(line, start, dir, byUnit) {
var bidi = getOrder(line);
if (!bidi) return moveLogically(line, start, dir, byUnit);
var pos = getBidiPartAt(bidi, start), part = bidi[pos];
var target = moveInLine(line, start, part.level % 2 ? -dir : dir, byUnit);
for (;;) {
if (target > part.from && target < part.to) return target;
if (target == part.from || target == part.to) {
if (getBidiPartAt(bidi, target) == pos) return target;
part = bidi[pos += dir];
return (dir > 0) == part.level % 2 ? part.to : part.from;
} else {
part = bidi[pos += dir];
if (!part) return null;
if ((dir > 0) == part.level % 2)
target = moveInLine(line, part.to, -1, byUnit);
else
target = moveInLine(line, part.from, 1, byUnit);
}
}
}
function moveLogically(line, start, dir, byUnit) {
var target = start + dir;
if (byUnit) while (target > 0 && isExtendingChar.test(line.text.charAt(target))) target += dir;
return target < 0 || target > line.text.length ? null : target;
}
// Bidirectional ordering algorithm
// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
// that this (partially) implements.
// One-char codes used for character types:
// L (L): Left-to-Right
// R (R): Right-to-Left
// r (AL): Right-to-Left Arabic
// 1 (EN): European Number
// + (ES): European Number Separator
// % (ET): European Number Terminator
// n (AN): Arabic Number
// , (CS): Common Number Separator
// m (NSM): Non-Spacing Mark
// b (BN): Boundary Neutral
// s (B): Paragraph Separator
// t (S): Segment Separator
// w (WS): Whitespace
// N (ON): Other Neutrals
// Returns null if characters are ordered as they appear
// (left-to-right), or an array of sections ({from, to, level}
// objects) in the order in which they occur visually.
var bidiOrdering = (function() {
// Character types for codepoints 0 to 0xff
var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLL";
// Character types for codepoints 0x600 to 0x6ff
var arabicTypes = "rrrrrrrrrrrr,rNNmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmrrrrrrrnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmNmmmmrrrrrrrrrrrrrrrrrr";
function charType(code) {
if (code <= 0xff) return lowTypes.charAt(code);
else if (0x590 <= code && code <= 0x5f4) return "R";
else if (0x600 <= code && code <= 0x6ff) return arabicTypes.charAt(code - 0x600);
else if (0x700 <= code && code <= 0x8ac) return "r";
else return "L";
}
var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/;
var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/;
// Browsers seem to always treat the boundaries of block elements as being L.
var outerType = "L";
return function(str) {
if (!bidiRE.test(str)) return false;
var len = str.length, types = [];
for (var i = 0, type; i < len; ++i)
types.push(type = charType(str.charCodeAt(i)));
// W1. Examine each non-spacing mark (NSM) in the level run, and
// change the type of the NSM to the type of the previous
// character. If the NSM is at the start of the level run, it will
// get the type of sor.
for (var i = 0, prev = outerType; i < len; ++i) {
var type = types[i];
if (type == "m") types[i] = prev;
else prev = type;
}
// W2. Search backwards from each instance of a European number
// until the first strong type (R, L, AL, or sor) is found. If an
// AL is found, change the type of the European number to Arabic
// number.
// W3. Change all ALs to R.
for (var i = 0, cur = outerType; i < len; ++i) {
var type = types[i];
if (type == "1" && cur == "r") types[i] = "n";
else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R"; }
}
// W4. A single European separator between two European numbers
// changes to a European number. A single common separator between
// two numbers of the same type changes to that type.
for (var i = 1, prev = types[0]; i < len - 1; ++i) {
var type = types[i];
if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1";
else if (type == "," && prev == types[i+1] &&
(prev == "1" || prev == "n")) types[i] = prev;
prev = type;
}
// W5. A sequence of European terminators adjacent to European
// numbers changes to all European numbers.
// W6. Otherwise, separators and terminators change to Other
// Neutral.
for (var i = 0; i < len; ++i) {
var type = types[i];
if (type == ",") types[i] = "N";
else if (type == "%") {
for (var end = i + 1; end < len && types[end] == "%"; ++end) {}
var replace = (i && types[i-1] == "!") || (end < len - 1 && types[end] == "1") ? "1" : "N";
for (var j = i; j < end; ++j) types[j] = replace;
i = end - 1;
}
}
// W7. Search backwards from each instance of a European number
// until the first strong type (R, L, or sor) is found. If an L is
// found, then change the type of the European number to L.
for (var i = 0, cur = outerType; i < len; ++i) {
var type = types[i];
if (cur == "L" && type == "1") types[i] = "L";
else if (isStrong.test(type)) cur = type;
}
// N1. A sequence of neutrals takes the direction of the
// surrounding strong text if the text on both sides has the same
// direction. European and Arabic numbers act as if they were R in
// terms of their influence on neutrals. Start-of-level-run (sor)
// and end-of-level-run (eor) are used at level run boundaries.
// N2. Any remaining neutrals take the embedding direction.
for (var i = 0; i < len; ++i) {
if (isNeutral.test(types[i])) {
for (var end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
var before = (i ? types[i-1] : outerType) == "L";
var after = (end < len - 1 ? types[end] : outerType) == "L";
var replace = before || after ? "L" : "R";
for (var j = i; j < end; ++j) types[j] = replace;
i = end - 1;
}
}
// Here we depart from the documented algorithm, in order to avoid
// building up an actual levels array. Since there are only three
// levels (0, 1, 2) in an implementation that doesn't take
// explicit embedding into account, we can build up the order on
// the fly, without following the level-based algorithm.
var order = [], m;
for (var i = 0; i < len;) {
if (countsAsLeft.test(types[i])) {
var start = i;
for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
order.push({from: start, to: i, level: 0});
} else {
var pos = i, at = order.length;
for (++i; i < len && types[i] != "L"; ++i) {}
for (var j = pos; j < i;) {
if (countsAsNum.test(types[j])) {
if (pos < j) order.splice(at, 0, {from: pos, to: j, level: 1});
var nstart = j;
for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
order.splice(at, 0, {from: nstart, to: j, level: 2});
pos = j;
} else ++j;
}
if (pos < i) order.splice(at, 0, {from: pos, to: i, level: 1});
}
}
if (order[0].level == 1 && (m = str.match(/^\s+/))) {
order[0].from = m[0].length;
order.unshift({from: 0, to: m[0].length, level: 0});
}
if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
lst(order).to -= m[0].length;
order.push({from: len - m[0].length, to: len, level: 0});
}
if (order[0].level != lst(order).level)
order.push({from: len, to: len, level: order[0].level});
return order;
};
})();
// THE END
CodeMirror.version = "3.14.0";
return CodeMirror;
})();
================================================
FILE: editor/scripts/editor.js
================================================
requirejs.config({
shim: {
'underscore': {
exports: '_'
}
}
});
require(["./ki", "text!ki.sjs", "./mori", "./sweet"], function(ki, ki_core, mori, sweet) {
var storage_code = 'editor_code';
var storage_mode = 'editor_mode';
var starting_code = $("#editor").text();
var editor = CodeMirror.fromTextArea($('#editor')[0], {
lineNumbers: true,
smartIndent: false,
indentWithTabs: true,
tabSize: 4,
autofocus: true,
theme: 'sweetprism',
extraKeys: {
"Ctrl-Enter": function(cm) {
run();
}
}
});
if (window.location.hash) {
editor.setValue(decodeURI(window.location.hash.slice(1)));
} else {
editor.setValue(localStorage[storage_code] ? localStorage[storage_code] : starting_code);
}
if(localStorage[storage_mode]) {
editor.setOption("keyMap", localStorage[storage_mode]);
}
var output = CodeMirror.fromTextArea($('#output')[0], {
lineNumbers: true,
theme: 'sweetprism',
readOnly: true
});
var updateTimeout;
editor.on("change", function(e) {
clearTimeout(updateTimeout);
updateTimeout = setTimeout(updateExpand, 200);
});
$('#btn-run').click(function() {
run();
});
var displayRequire = false;
$('#ck-require').click(function() {
displayRequire = !displayRequire;
updateExpand();
});
var options = {
modules: sweet.loadModule(ki.joinModule(editor.getValue(),ki_core))
};
$('#edit-box').css({visibility: 'visible'})
$('#output-box').css({visibility: 'visible'})
$('#btn-reload-macros').click(function() {
options.modules = sweet.loadModule(ki.joinModule(editor.getValue(),ki_core));
});
function updateExpand() {
var code = editor.getValue();
window.location = "editor.html#" + encodeURI(code);
localStorage[storage_code] = code;
try {
if (!displayRequire) {
code = code.replace('ki require core','');
}
var res = ki.compile(code,options);
output.setValue(res.code);
$('#errors').text('');
$('#errors').hide();
} catch (e) {
$('#return').hide();
$('#errors').text(e);
$('#errors').show();
}
}
updateExpand();
function run() {
var code = editor.getValue();
var res = ki.compile(code,options);
try {
$('#errors').text('');
$('#errors').hide();
$('#return').text('Output: ' + eval('(function() {' + res.code + '}())'));
$('#return').show();
} catch (e) {
$('#return').text('');
$('#return').hide();
$('#errors').text(e);
$('#errors').show();
}
}
});
================================================
FILE: editor/scripts/escodegen.js
================================================
// Generated by CommonJS Everywhere 0.8.1
(function (global) {
function require(file, parentModule) {
if ({}.hasOwnProperty.call(require.cache, file))
return require.cache[file];
var resolved = require.resolve(file);
if (!resolved)
throw new Error('Failed to resolve module ' + file);
var module$ = {
id: file,
require: require,
filename: file,
exports: {},
loaded: false,
parent: parentModule,
children: []
};
if (parentModule)
parentModule.children.push(module$);
var dirname = file.slice(0, file.lastIndexOf('/') + 1);
require.cache[file] = module$.exports;
resolved.call(module$.exports, module$, module$.exports, dirname, file);
module$.loaded = true;
return require.cache[file] = module$.exports;
}
require.modules = {};
require.cache = {};
require.resolve = function (file) {
return {}.hasOwnProperty.call(require.modules, file) ? require.modules[file] : void 0;
};
require.define = function (file, fn) {
require.modules[file] = fn;
};
var process = function () {
var cwd = '/';
return {
title: 'browser',
version: 'v0.10.24',
browser: true,
env: {},
argv: [],
nextTick: global.setImmediate || function (fn) {
setTimeout(fn, 0);
},
cwd: function () {
return cwd;
},
chdir: function (dir) {
cwd = dir;
}
};
}();
require.define('/tools/entry-point.js', function (module, exports, __dirname, __filename) {
(function () {
'use strict';
global.escodegen = require('/escodegen.js', module);
escodegen.browser = true;
}());
});
require.define('/escodegen.js', function (module, exports, __dirname, __filename) {
(function () {
'use strict';
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;
estraverse = require('/node_modules/estraverse/estraverse.js', module);
esutils = require('/node_modules/esutils/lib/utils.js', module);
Syntax = {
AssignmentExpression: 'AssignmentExpression',
ArrayExpression: 'ArrayExpression',
ArrayPattern: 'ArrayPattern',
ArrowFunctionExpression: 'ArrowFunctionExpression',
BlockStatement: 'BlockStatement',
BinaryExpression: 'BinaryExpression',
BreakStatement: 'BreakStatement',
CallExpression: 'CallExpression',
CatchClause: 'CatchClause',
ComprehensionBlock: 'ComprehensionBlock',
ComprehensionExpression: 'ComprehensionExpression',
ConditionalExpression: 'ConditionalExpression',
ContinueStatement: 'ContinueStatement',
DirectiveStatement: 'DirectiveStatement',
DoWhileStatement: 'DoWhileStatement',
DebuggerStatement: 'DebuggerStatement',
EmptyStatement: 'EmptyStatement',
ExportDeclaration: 'ExportDeclaration',
ExpressionStatement: 'ExpressionStatement',
ForStatement: 'ForStatement',
ForInStatement: 'ForInStatement',
FunctionDeclaration: 'FunctionDeclaration',
FunctionExpression: 'FunctionExpression',
GeneratorExpression: 'GeneratorExpression',
Identifier: 'Identifier',
IfStatement: 'IfStatement',
Literal: 'Literal',
LabeledStatement: 'LabeledStatement',
LogicalExpression: 'LogicalExpression',
MemberExpression: 'MemberExpression',
NewExpression: 'NewExpression',
ObjectExpression: 'ObjectExpression',
ObjectPattern: 'ObjectPattern',
Program: 'Program',
Property: 'Property',
ReturnStatement: 'ReturnStatement',
SequenceExpression: 'SequenceExpression',
SwitchStatement: 'SwitchStatement',
SwitchCase: 'SwitchCase',
ThisExpression: 'ThisExpression',
ThrowStatement: 'ThrowStatement',
TryStatement: 'TryStatement',
UnaryExpression: 'UnaryExpression',
UpdateExpression: 'UpdateExpression',
VariableDeclaration: 'VariableDeclaration',
VariableDeclarator: 'VariableDeclarator',
WhileStatement: 'WhileStatement',
WithStatement: 'WithStatement',
YieldExpression: 'YieldExpression'
};
Precedence = {
Sequence: 0,
Yield: 1,
Assignment: 1,
Conditional: 2,
ArrowFunction: 2,
LogicalOR: 3,
LogicalAND: 4,
BitwiseOR: 5,
BitwiseXOR: 6,
BitwiseAND: 7,
Equality: 8,
Relational: 9,
BitwiseSHIFT: 10,
Additive: 11,
Multiplicative: 12,
Unary: 13,
Postfix: 14,
Call: 15,
New: 16,
Member: 17,
Primary: 18
};
BinaryPrecedence = {
'||': Precedence.LogicalOR,
'&&': Precedence.LogicalAND,
'|': Precedence.BitwiseOR,
'^': Precedence.BitwiseXOR,
'&': Precedence.BitwiseAND,
'==': Precedence.Equality,
'!=': Precedence.Equality,
'===': Precedence.Equality,
'!==': Precedence.Equality,
'is': Precedence.Equality,
'isnt': Precedence.Equality,
'<': Precedence.Relational,
'>': Precedence.Relational,
'<=': Precedence.Relational,
'>=': Precedence.Relational,
'in': Precedence.Relational,
'instanceof': Precedence.Relational,
'<<': Precedence.BitwiseSHIFT,
'>>': Precedence.BitwiseSHIFT,
'>>>': Precedence.BitwiseSHIFT,
'+': Precedence.Additive,
'-': Precedence.Additive,
'*': Precedence.Multiplicative,
'%': Precedence.Multiplicative,
'/': Precedence.Multiplicative
};
function getDefaultOptions() {
return {
indent: null,
base: null,
parse: null,
comment: false,
format: {
indent: {
style: ' ',
base: 0,
adjustMultilineComment: false
},
newline: '\n',
space: ' ',
json: false,
renumber: false,
hexadecimal: false,
quotes: 'single',
escapeless: false,
compact: false,
parentheses: true,
semicolons: true,
safeConcatenation: false
},
moz: {
comprehensionExpressionStartsWithAssignment: false,
starlessGenerator: false,
parenthesizedComprehensionBlock: false
},
sourceMap: null,
sourceMapRoot: null,
sourceMapWithCode: false,
directive: false,
verbatim: null
};
}
function stringRepeat(str, num) {
var result = '';
for (num |= 0; num > 0; num >>>= 1, str += str) {
if (num & 1) {
result += str;
}
}
return result;
}
isArray = Array.isArray;
if (!isArray) {
isArray = function isArray(array) {
return Object.prototype.toString.call(array) === '[object Array]';
};
}
function hasLineTerminator(str) {
return /[\r\n]/g.test(str);
}
function endsWithLineTerminator(str) {
var len = str.length;
return len && esutils.code.isLineTerminator(str.charCodeAt(len - 1));
}
function updateDeeply(target, override) {
var key, val;
function isHashObject(target) {
return typeof target === 'object' && target instanceof Object && !(target instanceof RegExp);
}
for (key in override) {
if (override.hasOwnProperty(key)) {
val = override[key];
if (isHashObject(val)) {
if (isHashObject(target[key])) {
updateDeeply(target[key], val);
} else {
target[key] = updateDeeply({}, val);
}
} else {
target[key] = val;
}
}
}
return target;
}
function generateNumber(value) {
var result, point, temp, exponent, pos;
if (value !== value) {
throw new Error('Numeric literal whose value is NaN');
}
if (value < 0 || value === 0 && 1 / value < 0) {
throw new Error('Numeric literal whose value is negative');
}
if (value === 1 / 0) {
return json ? 'null' : renumber ? '1e400' : '1e+400';
}
result = '' + value;
if (!renumber || result.length < 3) {
return result;
}
point = result.indexOf('.');
if (!json && result.charCodeAt(0) === 48 && point === 1) {
point = 0;
result = result.slice(1);
}
temp = result;
result = result.replace('e+', 'e');
exponent = 0;
if ((pos = temp.indexOf('e')) > 0) {
exponent = +temp.slice(pos + 1);
temp = temp.slice(0, pos);
}
if (point >= 0) {
exponent -= temp.length - point - 1;
temp = +(temp.slice(0, point) + temp.slice(point + 1)) + '';
}
pos = 0;
while (temp.charCodeAt(temp.length + pos - 1) === 48) {
--pos;
}
if (pos !== 0) {
exponent -= pos;
temp = temp.slice(0, pos);
}
if (exponent !== 0) {
temp += 'e' + exponent;
}
if ((temp.length < result.length || hexadecimal && value > 1e12 && Math.floor(value) === value && (temp = '0x' + value.toString(16)).length < result.length) && +temp === value) {
result = temp;
}
return result;
}
function escapeRegExpCharacter(ch, previousIsBackslash) {
if ((ch & ~1) === 8232) {
return (previousIsBackslash ? 'u' : '\\u') + (ch === 8232 ? '2028' : '2029');
} else if (ch === 10 || ch === 13) {
return (previousIsBackslash ? '' : '\\') + (ch === 10 ? 'n' : 'r');
}
return String.fromCharCode(ch);
}
function generateRegExp(reg) {
var match, result, flags, i, iz, ch, characterInBrack, previousIsBackslash;
result = reg.toString();
if (reg.source) {
match = result.match(/\/([^/]*)$/);
if (!match) {
return result;
}
flags = match[1];
result = '';
characterInBrack = false;
previousIsBackslash = false;
for (i = 0, iz = reg.source.length; i < iz; ++i) {
ch = reg.source.charCodeAt(i);
if (!previousIsBackslash) {
if (characterInBrack) {
if (ch === 93) {
characterInBrack = false;
}
} else {
if (ch === 47) {
result += '\\';
} else if (ch === 91) {
characterInBrack = true;
}
}
result += escapeRegExpCharacter(ch, previousIsBackslash);
previousIsBackslash = ch === 92;
} else {
result += escapeRegExpCharacter(ch, previousIsBackslash);
previousIsBackslash = false;
}
}
return '/' + result + '/' + flags;
}
return result;
}
function escapeAllowedCharacter(code, next) {
var hex, result = '\\';
switch (code) {
case 8:
result += 'b';
break;
case 12:
result += 'f';
break;
case 9:
result += 't';
break;
default:
hex = code.toString(16).toUpperCase();
if (json || code > 255) {
result += 'u' + '0000'.slice(hex.length) + hex;
} else if (code === 0 && !esutils.code.isDecimalDigit(next)) {
result += '0';
} else if (code === 11) {
result += 'x0B';
} else {
result += 'x' + '00'.slice(hex.length) + hex;
}
break;
}
return result;
}
function escapeDisallowedCharacter(code) {
var result = '\\';
switch (code) {
case 92:
result += '\\';
break;
case 10:
result += 'n';
break;
case 13:
result += 'r';
break;
case 8232:
result += 'u2028';
break;
case 8233:
result += 'u2029';
break;
default:
throw new Error('Incorrectly classified character');
}
return result;
}
function escapeDirective(str) {
var i, iz, code, quote;
quote = quotes === 'double' ? '"' : "'";
for (i = 0, iz = str.length; i < iz; ++i) {
code = str.charCodeAt(i);
if (code === 39) {
quote = '"';
break;
} else if (code === 34) {
quote = "'";
break;
} else if (code === 92) {
++i;
}
}
return quote + str + quote;
}
function escapeString(str) {
var result = '', i, len, code, singleQuotes = 0, doubleQuotes = 0, single, quote;
for (i = 0, len = str.length; i < len; ++i) {
code = str.charCodeAt(i);
if (code === 39) {
++singleQuotes;
} else if (code === 34) {
++doubleQuotes;
} else if (code === 47 && json) {
result += '\\';
} else if (esutils.code.isLineTerminator(code) || code === 92) {
result += escapeDisallowedCharacter(code);
continue;
} else if (json && code < 32 || !(json || escapeless || code >= 32 && code <= 126)) {
result += escapeAllowedCharacter(code, str.charCodeAt(i + 1));
continue;
}
result += String.fromCharCode(code);
}
single = !(quotes === 'double' || quotes === 'auto' && doubleQuotes < singleQuotes);
quote = single ? "'" : '"';
if (!(single ? singleQuotes : doubleQuotes)) {
return quote + result + quote;
}
str = result;
result = quote;
for (i = 0, len = str.length; i < len; ++i) {
code = str.charCodeAt(i);
if (code === 39 && single || code === 34 && !single) {
result += '\\';
}
result += String.fromCharCode(code);
}
return result + quote;
}
function flattenToString(arr) {
var i, iz, elem, result = '';
for (i = 0, iz = arr.length; i < iz; ++i) {
elem = arr[i];
result += isArray(elem) ? flattenToString(elem) : elem;
}
return result;
}
function toSourceNodeWhenNeeded(generated, node) {
if (!sourceMap) {
if (isArray(generated)) {
return flattenToString(generated);
} else {
return generated;
}
}
if (node == null) {
if (generated instanceof SourceNode) {
return generated;
} else {
node = {};
}
}
if (node.loc == null) {
return new SourceNode(null, null, sourceMap, generated, node.name || null);
}
return new SourceNode(node.loc.start.line, node.loc.start.column, sourceMap === true ? node.loc.source || null : sourceMap, generated, node.name || null);
}
function noEmptySpace() {
return space ? space : ' ';
}
function join(left, right) {
var leftSource = toSourceNodeWhenNeeded(left).toString(), rightSource = toSourceNodeWhenNeeded(right).toString(), leftCharCode = leftSource.charCodeAt(leftSource.length - 1), rightCharCode = rightSource.charCodeAt(0);
if ((leftCharCode === 43 || leftCharCode === 45) && leftCharCode === rightCharCode || esutils.code.isIdentifierPart(leftCharCode) && esutils.code.isIdentifierPart(rightCharCode) || leftCharCode === 47 && rightCharCode === 105) {
return [
left,
noEmptySpace(),
right
];
} else if (esutils.code.isWhiteSpace(leftCharCode) || esutils.code.isLineTerminator(leftCharCode) || esutils.code.isWhiteSpace(rightCharCode) || esutils.code.isLineTerminator(rightCharCode)) {
return [
left,
right
];
}
return [
left,
space,
right
];
}
function addIndent(stmt) {
return [
base,
stmt
];
}
function withIndent(fn) {
var previousBase, result;
previousBase = base;
base += indent;
result = fn.call(this, base);
base = previousBase;
return result;
}
function calculateSpaces(str) {
var i;
for (i = str.length - 1; i >= 0; --i) {
if (esutils.code.isLineTerminator(str.charCodeAt(i))) {
break;
}
}
return str.length - 1 - i;
}
function adjustMultilineComment(value, specialBase) {
var array, i, len, line, j, spaces, previousBase, sn;
array = value.split(/\r\n|[\r\n]/);
spaces = Number.MAX_VALUE;
for (i = 1, len = array.length; i < len; ++i) {
line = array[i];
j = 0;
while (j < line.length && esutils.code.isWhiteSpace(line.charCodeAt(j))) {
++j;
}
if (spaces > j) {
spaces = j;
}
}
if (typeof specialBase !== 'undefined') {
previousBase = base;
if (array[1][spaces] === '*') {
specialBase += ' ';
}
base = specialBase;
} else {
if (spaces & 1) {
--spaces;
}
previousBase = base;
}
for (i = 1, len = array.length; i < len; ++i) {
sn = toSourceNodeWhenNeeded(addIndent(array[i].slice(spaces)));
array[i] = sourceMap ? sn.join('') : sn;
}
base = previousBase;
return array.join('\n');
}
function generateComment(comment, specialBase) {
if (comment.type === 'Line') {
if (endsWithLineTerminator(comment.value)) {
return '//' + comment.value;
} else {
return '//' + comment.value + '\n';
}
}
if (extra.format.indent.adjustMultilineComment && /[\n\r]/.test(comment.value)) {
return adjustMultilineComment('/*' + comment.value + '*/', specialBase);
}
return '/*' + comment.value + '*/';
}
function addCommentsToStatement(stmt, result) {
var i, len, comment, save, tailingToStatement, specialBase, fragment;
if (stmt.leadingComments && stmt.leadingComments.length > 0) {
save = result;
comment = stmt.leadingComments[0];
result = [];
if (safeConcatenation && stmt.type === Syntax.Program && stmt.body.length === 0) {
result.push('\n');
}
result.push(generateComment(comment));
if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
result.push('\n');
}
for (i = 1, len = stmt.leadingComments.length; i < len; ++i) {
comment = stmt.leadingComments[i];
fragment = [generateComment(comment)];
if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
fragment.push('\n');
}
result.push(addIndent(fragment));
}
result.push(addIndent(save));
}
if (stmt.trailingComments) {
tailingToStatement = !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());
specialBase = stringRepeat(' ', calculateSpaces(toSourceNodeWhenNeeded([
base,
result,
indent
]).toString()));
for (i = 0, len = stmt.trailingComments.length; i < len; ++i) {
comment = stmt.trailingComments[i];
if (tailingToStatement) {
if (i === 0) {
result = [
result,
indent
];
} else {
result = [
result,
specialBase
];
}
result.push(generateComment(comment, specialBase));
} else {
result = [
result,
addIndent(generateComment(comment))
];
}
if (i !== len - 1 && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
result = [
result,
'\n'
];
}
}
}
return result;
}
function parenthesize(text, current, should) {
if (current < should) {
return [
'(',
text,
')'
];
}
return text;
}
function maybeBlock(stmt, semicolonOptional, functionBody) {
var result, noLeadingComment;
noLeadingComment = !extra.comment || !stmt.leadingComments;
if (stmt.type === Syntax.BlockStatement && noLeadingComment) {
return [
space,
generateStatement(stmt, { functionBody: functionBody })
];
}
if (stmt.type === Syntax.EmptyStatement && noLeadingComment) {
return ';';
}
withIndent(function () {
result = [
newline,
addIndent(generateStatement(stmt, {
semicolonOptional: semicolonOptional,
functionBody: functionBody
}))
];
});
return result;
}
function maybeBlockSuffix(stmt, result) {
var ends = endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString());
if (stmt.type === Syntax.BlockStatement && (!extra.comment || !stmt.leadingComments) && !ends) {
return [
result,
space
];
}
if (ends) {
return [
result,
base
];
}
return [
result,
newline,
base
];
}
function generateVerbatim(expr, option) {
var i, result;
result = expr[extra.verbatim].split(/\r\n|\n/);
for (i = 1; i < result.length; i++) {
result[i] = newline + base + result[i];
}
result = parenthesize(result, Precedence.Sequence, option.precedence);
return toSourceNodeWhenNeeded(result, expr);
}
function generateIdentifier(node) {
return toSourceNodeWhenNeeded(node.name, node);
}
function generatePattern(node, options) {
var result;
if (node.type === Syntax.Identifier) {
result = generateIdentifier(node);
} else {
result = generateExpression(node, {
precedence: options.precedence,
allowIn: options.allowIn,
allowCall: true
});
}
return result;
}
function generateFunctionBody(node) {
var result, i, len, expr, arrow;
arrow = node.type === Syntax.ArrowFunctionExpression;
if (arrow && node.params.length === 1 && node.params[0].type === Syntax.Identifier) {
result = [generateIdentifier(node.params[0])];
} else {
result = ['('];
for (i = 0, len = node.params.length; i < len; ++i) {
result.push(generatePattern(node.params[i], {
precedence: Precedence.Assignment,
allowIn: true
}));
if (i + 1 < len) {
result.push(',' + space);
}
}
result.push(')');
}
if (arrow) {
result.push(space, '=>');
}
if (node.expression) {
result.push(space);
expr = generateExpression(node.body, {
precedence: Precedence.Assignment,
allowIn: true,
allowCall: true
});
if (expr.toString().charAt(0) === '{') {
expr = [
'(',
expr,
')'
];
}
result.push(expr);
} else {
result.push(maybeBlock(node.body, false, true));
}
return result;
}
function generateExpression(expr, option) {
var result, precedence, type, currentPrecedence, i, len, raw, fragment, multiline, leftCharCode, leftSource, rightCharCode, allowIn, allowCall, allowUnparenthesizedNew, property, isGenerator;
precedence = option.precedence;
allowIn = option.allowIn;
allowCall = option.allowCall;
type = expr.type || option.type;
if (extra.verbatim && expr.hasOwnProperty(extra.verbatim)) {
return generateVerbatim(expr, option);
}
switch (type) {
case Syntax.SequenceExpression:
result = [];
allowIn |= Precedence.Sequence < precedence;
for (i = 0, len = expr.expressions.length; i < len; ++i) {
result.push(generateExpression(expr.expressions[i], {
precedence: Precedence.Assignment,
allowIn: allowIn,
allowCall: true
}));
if (i + 1 < len) {
result.push(',' + space);
}
}
result = parenthesize(result, Precedence.Sequence, precedence);
break;
case Syntax.AssignmentExpression:
allowIn |= Precedence.Assignment < precedence;
result = parenthesize([
generateExpression(expr.left, {
precedence: Precedence.Call,
allowIn: allowIn,
allowCall: true
}),
space + expr.operator + space,
generateExpression(expr.right, {
precedence: Precedence.Assignment,
allowIn: allowIn,
allowCall: true
})
], Precedence.Assignment, precedence);
break;
case Syntax.ArrowFunctionExpression:
allowIn |= Precedence.ArrowFunction < precedence;
result = parenthesize(generateFunctionBody(expr), Precedence.ArrowFunction, precedence);
break;
case Syntax.ConditionalExpression:
allowIn |= Precedence.Conditional < precedence;
result = parenthesize([
generateExpression(expr.test, {
precedence: Precedence.LogicalOR,
allowIn: allowIn,
allowCall: true
}),
space + '?' + space,
generateExpression(expr.consequent, {
precedence: Precedence.Assignment,
allowIn: allowIn,
allowCall: true
}),
space + ':' + space,
generateExpression(expr.alternate, {
precedence: Precedence.Assignment,
allowIn: allowIn,
allowCall: true
})
], Precedence.Conditional, precedence);
break;
case Syntax.LogicalExpression:
case Syntax.BinaryExpression:
currentPrecedence = BinaryPrecedence[expr.operator];
allowIn |= currentPrecedence < precedence;
fragment = generateExpression(expr.left, {
precedence: currentPrecedence,
allowIn: allowIn,
allowCall: true
});
leftSource = fragment.toString();
if (leftSource.charCodeAt(leftSource.length - 1) === 47 && esutils.code.isIdentifierPart(expr.operator.charCodeAt(0))) {
result = [
fragment,
noEmptySpace(),
expr.operator
];
} else {
result = join(fragment, expr.operator);
}
fragment = generateExpression(expr.right, {
precedence: currentPrecedence + 1,
allowIn: allowIn,
allowCall: true
});
if (expr.operator === '/' && fragment.toString().charAt(0) === '/' || expr.operator.slice(-1) === '<' && fragment.toString().slice(0, 3) === '!--') {
result.push(noEmptySpace(), fragment);
} else {
result = join(result, fragment);
}
if (expr.operator === 'in' && !allowIn) {
result = [
'(',
result,
')'
];
} else {
result = parenthesize(result, currentPrecedence, precedence);
}
break;
case Syntax.CallExpression:
result = [generateExpression(expr.callee, {
precedence: Precedence.Call,
allowIn: true,
allowCall: true,
allowUnparenthesizedNew: false
})];
result.push('(');
for (i = 0, len = expr['arguments'].length; i < len; ++i) {
result.push(generateExpression(expr['arguments'][i], {
precedence: Precedence.Assignment,
allowIn: true,
allowCall: true
}));
if (i + 1 < len) {
result.push(',' + space);
}
}
result.push(')');
if (!allowCall) {
result = [
'(',
result,
')'
];
} else {
result = parenthesize(result, Precedence.Call, precedence);
}
break;
case Syntax.NewExpression:
len = expr['arguments'].length;
allowUnparenthesizedNew = option.allowUnparenthesizedNew === undefined || option.allowUnparenthesizedNew;
result = join('new', generateExpression(expr.callee, {
precedence: Precedence.New,
allowIn: true,
allowCall: false,
allowUnparenthesizedNew: allowUnparenthesizedNew && !parentheses && len === 0
}));
if (!allowUnparenthesizedNew || parentheses || len > 0) {
result.push('(');
for (i = 0; i < len; ++i) {
result.push(generateExpression(expr['arguments'][i], {
precedence: Precedence.Assignment,
allowIn: true,
allowCall: true
}));
if (i + 1 < len) {
result.push(',' + space);
}
}
result.push(')');
}
result = parenthesize(result, Precedence.New, precedence);
break;
case Syntax.MemberExpression:
result = [generateExpression(expr.object, {
precedence: Precedence.Call,
allowIn: true,
allowCall: allowCall,
allowUnparenthesizedNew: false
})];
if (expr.computed) {
result.push('[', generateExpression(expr.property, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: allowCall
}), ']');
} else {
if (expr.object.type === Syntax.Literal && typeof expr.object.value === 'number') {
fragment = toSourceNodeWhenNeeded(result).toString();
if (fragment.indexOf('.') < 0 && !/[eExX]/.test(fragment) && esutils.code.isDecimalDigit(fragment.charCodeAt(fragment.length - 1)) && !(fragment.length >= 2 && fragment.charCodeAt(0) === 48)) {
result.push('.');
}
}
result.push('.', generateIdentifier(expr.property));
}
result = parenthesize(result, Precedence.Member, precedence);
break;
case Syntax.UnaryExpression:
fragment = generateExpression(expr.argument, {
precedence: Precedence.Unary,
allowIn: true,
allowCall: true
});
if (space === '') {
result = join(expr.operator, fragment);
} else {
result = [expr.operator];
if (expr.operator.length > 2) {
result = join(result, fragment);
} else {
leftSource = toSourceNodeWhenNeeded(result).toString();
leftCharCode = leftSource.charCodeAt(leftSource.length - 1);
rightCharCode = fragment.toString().charCodeAt(0);
if ((leftCharCode === 43 || leftCharCode === 45) && leftCharCode === rightCharCode || esutils.code.isIdentifierPart(leftCharCode) && esutils.code.isIdentifierPart(rightCharCode)) {
result.push(noEmptySpace(), fragment);
} else {
result.push(fragment);
}
}
}
result = parenthesize(result, Precedence.Unary, precedence);
break;
case Syntax.YieldExpression:
if (expr.delegate) {
result = 'yield*';
} else {
result = 'yield';
}
if (expr.argument) {
result = join(result, generateExpression(expr.argument, {
precedence: Precedence.Yield,
allowIn: true,
allowCall: true
}));
}
result = parenthesize(result, Precedence.Yield, precedence);
break;
case Syntax.UpdateExpression:
if (expr.prefix) {
result = parenthesize([
expr.operator,
generateExpression(expr.argument, {
precedence: Precedence.Unary,
allowIn: true,
allowCall: true
})
], Precedence.Unary, precedence);
} else {
result = parenthesize([
generateExpression(expr.argument, {
precedence: Precedence.Postfix,
allowIn: true,
allowCall: true
}),
expr.operator
], Precedence.Postfix, precedence);
}
break;
case Syntax.FunctionExpression:
isGenerator = expr.generator && !extra.moz.starlessGenerator;
result = isGenerator ? 'function*' : 'function';
if (expr.id) {
result = [
result,
isGenerator ? space : noEmptySpace(),
generateIdentifier(expr.id),
generateFunctionBody(expr)
];
} else {
result = [
result + space,
generateFunctionBody(expr)
];
}
break;
case Syntax.ArrayPattern:
case Syntax.ArrayExpression:
if (!expr.elements.length) {
result = '[]';
break;
}
multiline = expr.elements.length > 1;
result = [
'[',
multiline ? newline : ''
];
withIndent(function (indent) {
for (i = 0, len = expr.elements.length; i < len; ++i) {
if (!expr.elements[i]) {
if (multiline) {
result.push(indent);
}
if (i + 1 === len) {
result.push(',');
}
} else {
result.push(multiline ? indent : '', generateExpression(expr.elements[i], {
precedence: Precedence.Assignment,
allowIn: true,
allowCall: true
}));
}
if (i + 1 < len) {
result.push(',' + (multiline ? newline : space));
}
}
});
if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
result.push(newline);
}
result.push(multiline ? base : '', ']');
break;
case Syntax.Property:
if (expr.kind === 'get' || expr.kind === 'set') {
result = [
expr.kind,
noEmptySpace(),
generateExpression(expr.key, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}),
generateFunctionBody(expr.value)
];
} else {
if (expr.shorthand) {
result = generateExpression(expr.key, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
});
} else if (expr.method) {
result = [];
if (expr.value.generator) {
result.push('*');
}
result.push(generateExpression(expr.key, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}), generateFunctionBody(expr.value));
} else {
result = [
generateExpression(expr.key, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}),
':' + space,
generateExpression(expr.value, {
precedence: Precedence.Assignment,
allowIn: true,
allowCall: true
})
];
}
}
break;
case Syntax.ObjectExpression:
if (!expr.properties.length) {
result = '{}';
break;
}
multiline = expr.properties.length > 1;
withIndent(function () {
fragment = generateExpression(expr.properties[0], {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true,
type: Syntax.Property
});
});
if (!multiline) {
if (!hasLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
result = [
'{',
space,
fragment,
space,
'}'
];
break;
}
}
withIndent(function (indent) {
result = [
'{',
newline,
indent,
fragment
];
if (multiline) {
result.push(',' + newline);
for (i = 1, len = expr.properties.length; i < len; ++i) {
result.push(indent, generateExpression(expr.properties[i], {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true,
type: Syntax.Property
}));
if (i + 1 < len) {
result.push(',' + newline);
}
}
}
});
if (!endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
result.push(newline);
}
result.push(base, '}');
break;
case Syntax.ObjectPattern:
if (!expr.properties.length) {
result = '{}';
break;
}
multiline = false;
if (expr.properties.length === 1) {
property = expr.properties[0];
if (property.value.type !== Syntax.Identifier) {
multiline = true;
}
} else {
for (i = 0, len = expr.properties.length; i < len; ++i) {
property = expr.properties[i];
if (!property.shorthand) {
multiline = true;
break;
}
}
}
result = [
'{',
multiline ? newline : ''
];
withIndent(function (indent) {
for (i = 0, len = expr.properties.length; i < len; ++i) {
result.push(multiline ? indent : '', generateExpression(expr.properties[i], {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}));
if (i + 1 < len) {
result.push(',' + (multiline ? newline : space));
}
}
});
if (multiline && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
result.push(newline);
}
result.push(multiline ? base : '', '}');
break;
case Syntax.ThisExpression:
result = 'this';
break;
case Syntax.Identifier:
result = generateIdentifier(expr);
break;
case Syntax.Literal:
if (expr.hasOwnProperty('raw') && parse) {
try {
raw = parse(expr.raw).body[0].expression;
if (raw.type === Syntax.Literal) {
if (raw.value === expr.value) {
result = expr.raw;
break;
}
}
} catch (e) {
}
}
if (expr.value === null) {
result = 'null';
break;
}
if (typeof expr.value === 'string') {
result = escapeString(expr.value);
break;
}
if (typeof expr.value === 'number') {
result = generateNumber(expr.value);
break;
}
if (typeof expr.value === 'boolean') {
result = expr.value ? 'true' : 'false';
break;
}
result = generateRegExp(expr.value);
break;
case Syntax.GeneratorExpression:
case Syntax.ComprehensionExpression:
result = type === Syntax.GeneratorExpression ? ['('] : ['['];
if (extra.moz.comprehensionExpressionStartsWithAssignment) {
fragment = generateExpression(expr.body, {
precedence: Precedence.Assignment,
allowIn: true,
allowCall: true
});
result.push(fragment);
}
if (expr.blocks) {
withIndent(function () {
for (i = 0, len = expr.blocks.length; i < len; ++i) {
fragment = generateExpression(expr.blocks[i], {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
});
if (i > 0 || extra.moz.comprehensionExpressionStartsWithAssignment) {
result = join(result, fragment);
} else {
result.push(fragment);
}
}
});
}
if (expr.filter) {
result = join(result, 'if' + space);
fragment = generateExpression(expr.filter, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
});
if (extra.moz.parenthesizedComprehensionBlock) {
result = join(result, [
'(',
fragment,
')'
]);
} else {
result = join(result, fragment);
}
}
if (!extra.moz.comprehensionExpressionStartsWithAssignment) {
fragment = generateExpression(expr.body, {
precedence: Precedence.Assignment,
allowIn: true,
allowCall: true
});
result = join(result, fragment);
}
result.push(type === Syntax.GeneratorExpression ? ')' : ']');
break;
case Syntax.ComprehensionBlock:
if (expr.left.type === Syntax.VariableDeclaration) {
fragment = [
expr.left.kind,
noEmptySpace(),
generateStatement(expr.left.declarations[0], { allowIn: false })
];
} else {
fragment = generateExpression(expr.left, {
precedence: Precedence.Call,
allowIn: true,
allowCall: true
});
}
fragment = join(fragment, expr.of ? 'of' : 'in');
fragment = join(fragment, generateExpression(expr.right, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}));
if (extra.moz.parenthesizedComprehensionBlock) {
result = [
'for' + space + '(',
fragment,
')'
];
} else {
result = join('for' + space, fragment);
}
break;
default:
throw new Error('Unknown expression type: ' + expr.type);
}
return toSourceNodeWhenNeeded(result, expr);
}
function generateStatement(stmt, option) {
var i, len, result, node, allowIn, functionBody, directiveContext, fragment, semicolon, isGenerator;
allowIn = true;
semicolon = ';';
functionBody = false;
directiveContext = false;
if (option) {
allowIn = option.allowIn === undefined || option.allowIn;
if (!semicolons && option.semicolonOptional === true) {
semicolon = '';
}
functionBody = option.functionBody;
directiveContext = option.directiveContext;
}
switch (stmt.type) {
case Syntax.BlockStatement:
result = [
'{',
newline
];
withIndent(function () {
for (i = 0, len = stmt.body.length; i < len; ++i) {
fragment = addIndent(generateStatement(stmt.body[i], {
semicolonOptional: i === len - 1,
directiveContext: functionBody
}));
result.push(fragment);
if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
result.push(newline);
}
}
});
result.push(addIndent('}'));
break;
case Syntax.BreakStatement:
if (stmt.label) {
result = 'break ' + stmt.label.name + semicolon;
} else {
result = 'break' + semicolon;
}
break;
case Syntax.ContinueStatement:
if (stmt.label) {
result = 'continue ' + stmt.label.name + semicolon;
} else {
result = 'continue' + semicolon;
}
break;
case Syntax.DirectiveStatement:
if (stmt.raw) {
result = stmt.raw + semicolon;
} else {
result = escapeDirective(stmt.directive) + semicolon;
}
break;
case Syntax.DoWhileStatement:
result = join('do', maybeBlock(stmt.body));
result = maybeBlockSuffix(stmt.body, result);
result = join(result, [
'while' + space + '(',
generateExpression(stmt.test, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}),
')' + semicolon
]);
break;
case Syntax.CatchClause:
withIndent(function () {
var guard;
result = [
'catch' + space + '(',
generateExpression(stmt.param, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}),
')'
];
if (stmt.guard) {
guard = generateExpression(stmt.guard, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
});
result.splice(2, 0, ' if ', guard);
}
});
result.push(maybeBlock(stmt.body));
break;
case Syntax.DebuggerStatement:
result = 'debugger' + semicolon;
break;
case Syntax.EmptyStatement:
result = ';';
break;
case Syntax.ExportDeclaration:
result = 'export ';
if (stmt.declaration) {
result = [
result,
generateStatement(stmt.declaration, { semicolonOptional: semicolon === '' })
];
break;
}
break;
case Syntax.ExpressionStatement:
result = [generateExpression(stmt.expression, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
})];
fragment = toSourceNodeWhenNeeded(result).toString();
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') {
result = [
'(',
result,
')' + semicolon
];
} else {
result.push(semicolon);
}
break;
case Syntax.VariableDeclarator:
if (stmt.init) {
result = [
generateExpression(stmt.id, {
precedence: Precedence.Assignment,
allowIn: allowIn,
allowCall: true
}),
space,
'=',
space,
generateExpression(stmt.init, {
precedence: Precedence.Assignment,
allowIn: allowIn,
allowCall: true
})
];
} else {
result = generatePattern(stmt.id, {
precedence: Precedence.Assignment,
allowIn: allowIn
});
}
break;
case Syntax.VariableDeclaration:
result = [stmt.kind];
if (stmt.declarations.length === 1 && stmt.declarations[0].init && stmt.declarations[0].init.type === Syntax.FunctionExpression) {
result.push(noEmptySpace(), generateStatement(stmt.declarations[0], { allowIn: allowIn }));
} else {
withIndent(function () {
node = stmt.declarations[0];
if (extra.comment && node.leadingComments) {
result.push('\n', addIndent(generateStatement(node, { allowIn: allowIn })));
} else {
result.push(noEmptySpace(), generateStatement(node, { allowIn: allowIn }));
}
for (i = 1, len = stmt.declarations.length; i < len; ++i) {
node = stmt.declarations[i];
if (extra.comment && node.leadingComments) {
result.push(',' + newline, addIndent(generateStatement(node, { allowIn: allowIn })));
} else {
result.push(',' + space, generateStatement(node, { allowIn: allowIn }));
}
}
});
}
result.push(semicolon);
break;
case Syntax.ThrowStatement:
result = [
join('throw', generateExpression(stmt.argument, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
})),
semicolon
];
break;
case Syntax.TryStatement:
result = [
'try',
maybeBlock(stmt.block)
];
result = maybeBlockSuffix(stmt.block, result);
if (stmt.handlers) {
for (i = 0, len = stmt.handlers.length; i < len; ++i) {
result = join(result, generateStatement(stmt.handlers[i]));
if (stmt.finalizer || i + 1 !== len) {
result = maybeBlockSuffix(stmt.handlers[i].body, result);
}
}
} else {
stmt.guardedHandlers = stmt.guardedHandlers || [];
for (i = 0, len = stmt.guardedHandlers.length; i < len; ++i) {
result = join(result, generateStatement(stmt.guardedHandlers[i]));
if (stmt.finalizer || i + 1 !== len) {
result = maybeBlockSuffix(stmt.guardedHandlers[i].body, result);
}
}
if (stmt.handler) {
if (isArray(stmt.handler)) {
for (i = 0, len = stmt.handler.length; i < len; ++i) {
result = join(result, generateStatement(stmt.handler[i]));
if (stmt.finalizer || i + 1 !== len) {
result = maybeBlockSuffix(stmt.handler[i].body, result);
}
}
} else {
result = join(result, generateStatement(stmt.handler));
if (stmt.finalizer) {
result = maybeBlockSuffix(stmt.handler.body, result);
}
}
}
}
if (stmt.finalizer) {
result = join(result, [
'finally',
maybeBlock(stmt.finalizer)
]);
}
break;
case Syntax.SwitchStatement:
withIndent(function () {
result = [
'switch' + space + '(',
generateExpression(stmt.discriminant, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}),
')' + space + '{' + newline
];
});
if (stmt.cases) {
for (i = 0, len = stmt.cases.length; i < len; ++i) {
fragment = addIndent(generateStatement(stmt.cases[i], { semicolonOptional: i === len - 1 }));
result.push(fragment);
if (!endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
result.push(newline);
}
}
}
result.push(addIndent('}'));
break;
case Syntax.SwitchCase:
withIndent(function () {
if (stmt.test) {
result = [
join('case', generateExpression(stmt.test, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
})),
':'
];
} else {
result = ['default:'];
}
i = 0;
len = stmt.consequent.length;
if (len && stmt.consequent[0].type === Syntax.BlockStatement) {
fragment = maybeBlock(stmt.consequent[0]);
result.push(fragment);
i = 1;
}
if (i !== len && !endsWithLineTerminator(toSourceNodeWhenNeeded(result).toString())) {
result.push(newline);
}
for (; i < len; ++i) {
fragment = addIndent(generateStatement(stmt.consequent[i], { semicolonOptional: i === len - 1 && semicolon === '' }));
result.push(fragment);
if (i + 1 !== len && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
result.push(newline);
}
}
});
break;
case Syntax.IfStatement:
withIndent(function () {
result = [
'if' + space + '(',
generateExpression(stmt.test, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}),
')'
];
});
if (stmt.alternate) {
result.push(maybeBlock(stmt.consequent));
result = maybeBlockSuffix(stmt.consequent, result);
if (stmt.alternate.type === Syntax.IfStatement) {
result = join(result, [
'else ',
generateStatement(stmt.alternate, { semicolonOptional: semicolon === '' })
]);
} else {
result = join(result, join('else', maybeBlock(stmt.alternate, semicolon === '')));
}
} else {
result.push(maybeBlock(stmt.consequent, semicolon === ''));
}
break;
case Syntax.ForStatement:
withIndent(function () {
result = ['for' + space + '('];
if (stmt.init) {
if (stmt.init.type === Syntax.VariableDeclaration) {
result.push(generateStatement(stmt.init, { allowIn: false }));
} else {
result.push(generateExpression(stmt.init, {
precedence: Precedence.Sequence,
allowIn: false,
allowCall: true
}), ';');
}
} else {
result.push(';');
}
if (stmt.test) {
result.push(space, generateExpression(stmt.test, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}), ';');
} else {
result.push(';');
}
if (stmt.update) {
result.push(space, generateExpression(stmt.update, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}), ')');
} else {
result.push(')');
}
});
result.push(maybeBlock(stmt.body, semicolon === ''));
break;
case Syntax.ForInStatement:
result = ['for' + space + '('];
withIndent(function () {
if (stmt.left.type === Syntax.VariableDeclaration) {
withIndent(function () {
result.push(stmt.left.kind + noEmptySpace(), generateStatement(stmt.left.declarations[0], { allowIn: false }));
});
} else {
result.push(generateExpression(stmt.left, {
precedence: Precedence.Call,
allowIn: true,
allowCall: true
}));
}
result = join(result, 'in');
result = [
join(result, generateExpression(stmt.right, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
})),
')'
];
});
result.push(maybeBlock(stmt.body, semicolon === ''));
break;
case Syntax.LabeledStatement:
result = [
stmt.label.name + ':',
maybeBlock(stmt.body, semicolon === '')
];
break;
case Syntax.Program:
len = stmt.body.length;
result = [safeConcatenation && len > 0 ? '\n' : ''];
for (i = 0; i < len; ++i) {
fragment = addIndent(generateStatement(stmt.body[i], {
semicolonOptional: !safeConcatenation && i === len - 1,
directiveContext: true
}));
result.push(fragment);
if (i + 1 < len && !endsWithLineTerminator(toSourceNodeWhenNeeded(fragment).toString())) {
result.push(newline);
}
}
break;
case Syntax.FunctionDeclaration:
isGenerator = stmt.generator && !extra.moz.starlessGenerator;
result = [
isGenerator ? 'function*' : 'function',
isGenerator ? space : noEmptySpace(),
generateIdentifier(stmt.id),
generateFunctionBody(stmt)
];
break;
case Syntax.ReturnStatement:
if (stmt.argument) {
result = [
join('return', generateExpression(stmt.argument, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
})),
semicolon
];
} else {
result = ['return' + semicolon];
}
break;
case Syntax.WhileStatement:
withIndent(function () {
result = [
'while' + space + '(',
generateExpression(stmt.test, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}),
')'
];
});
result.push(maybeBlock(stmt.body, semicolon === ''));
break;
case Syntax.WithStatement:
withIndent(function () {
result = [
'with' + space + '(',
generateExpression(stmt.object, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
}),
')'
];
});
result.push(maybeBlock(stmt.body, semicolon === ''));
break;
default:
throw new Error('Unknown statement type: ' + stmt.type);
}
if (extra.comment) {
result = addCommentsToStatement(stmt, result);
}
fragment = toSourceNodeWhenNeeded(result).toString();
if (stmt.type === Syntax.Program && !safeConcatenation && newline === '' && fragment.charAt(fragment.length - 1) === '\n') {
result = sourceMap ? toSourceNodeWhenNeeded(result).replaceRight(/\s+$/, '') : fragment.replace(/\s+$/, '');
}
return toSourceNodeWhenNeeded(result, stmt);
}
function generate(node, options) {
var defaultOptions = getDefaultOptions(), result, pair;
if (options != null) {
if (typeof options.indent === 'string') {
defaultOptions.format.indent.style = options.indent;
}
if (typeof options.base === 'number') {
defaultOptions.format.indent.base = options.base;
}
options = updateDeeply(defaultOptions, options);
indent = options.format.indent.style;
if (typeof options.base === 'string') {
base = options.base;
} else {
base = stringRepeat(indent, options.format.indent.base);
}
} else {
options = defaultOptions;
indent = options.format.indent.style;
base = stringRepeat(indent, options.format.indent.base);
}
json = options.format.json;
renumber = options.format.renumber;
hexadecimal = json ? false : options.format.hexadecimal;
quotes = json ? 'double' : options.format.quotes;
escapeless = options.format.escapeless;
newline = options.format.newline;
space = options.format.space;
if (options.format.compact) {
newline = space = indent = base = '';
}
parentheses = options.format.parentheses;
semicolons = options.format.semicolons;
safeConcatenation = options.format.safeConcatenation;
directive = options.directive;
parse = json ? null : options.parse;
sourceMap = options.sourceMap;
extra = options;
if (sourceMap) {
if (!exports.browser) {
SourceNode = require('/node_modules/source-map/lib/source-map.js', module).SourceNode;
} else {
SourceNode = global.sourceMap.SourceNode;
}
}
switch (node.type) {
case Syntax.BlockStatement:
case Syntax.BreakStatement:
case Syntax.CatchClause:
case Syntax.ContinueStatement:
case Syntax.DirectiveStatement:
case Syntax.DoWhileStatement:
case Syntax.DebuggerStatement:
case Syntax.EmptyStatement:
case Syntax.ExpressionStatement:
case Syntax.ForStatement:
case Syntax.ForInStatement:
case Syntax.FunctionDeclaration:
case Syntax.IfStatement:
case Syntax.LabeledStatement:
case Syntax.Program:
case Syntax.ReturnStatement:
case Syntax.SwitchStatement:
case Syntax.SwitchCase:
case Syntax.ThrowStatement:
case Syntax.TryStatement:
case Syntax.VariableDeclaration:
case Syntax.VariableDeclarator:
case Syntax.WhileStatement:
case Syntax.WithStatement:
result = generateStatement(node);
break;
case Syntax.AssignmentExpression:
case Syntax.ArrayExpression:
case Syntax.ArrayPattern:
case Syntax.BinaryExpression:
case Syntax.CallExpression:
case Syntax.ConditionalExpression:
case Syntax.FunctionExpression:
case Syntax.Identifier:
case Syntax.Literal:
case Syntax.LogicalExpression:
case Syntax.MemberExpression:
case Syntax.NewExpression:
case Syntax.ObjectExpression:
case Syntax.ObjectPattern:
case Syntax.Property:
case Syntax.SequenceExpression:
case Syntax.ThisExpression:
case Syntax.UnaryExpression:
case Syntax.UpdateExpression:
case Syntax.YieldExpression:
result = generateExpression(node, {
precedence: Precedence.Sequence,
allowIn: true,
allowCall: true
});
break;
default:
throw new Error('Unknown node type: ' + node.type);
}
if (!sourceMap) {
return result.toString();
}
pair = result.toStringWithSourceMap({
file: options.file,
sourceRoot: options.sourceMapRoot
});
if (options.sourceContent) {
pair.map.setSourceContent(options.sourceMap, options.sourceContent);
}
if (options.sourceMapWithCode) {
return pair;
}
return pair.map.toString();
}
FORMAT_MINIFY = {
indent: {
style: '',
base: 0
},
renumber: true,
hexadecimal: true,
quotes: 'auto',
escapeless: true,
compact: true,
parentheses: false,
semicolons: false
};
FORMAT_DEFAULTS = getDefaultOptions().format;
exports.version = require('/package.json', module).version;
exports.generate = generate;
exports.attachComments = estraverse.attachComments;
exports.browser = false;
exports.FORMAT_MINIFY = FORMAT_MINIFY;
exports.FORMAT_DEFAULTS = FORMAT_DEFAULTS;
}());
});
require.define('/package.json', function (module, exports, __dirname, __filename) {
module.exports = {
'name': 'escodegen',
'description': 'ECMAScript code generator',
'homepage': 'http://github.com/Constellation/escodegen',
'main': 'escodegen.js',
'bin': {
'esgenerate': './bin/esgenerate.js',
'escodegen': './bin/escodegen.js'
},
'version': '1.1.0-dev',
'engines': { 'node': '>=0.4.0' },
'maintainers': [{
'name': 'Yusuke Suzuki',
'email': 'utatane.tea@gmail.com',
'web': 'http://github.com/Constellation'
}],
'repository': {
'type': 'git',
'url': 'http://github.com/Constellation/escodegen.git'
},
'dependencies': {
'esprima': '~1.0.4',
'estraverse': '~1.5.0',
'esutils': '~1.0.0'
},
'optionalDependencies': { 'source-map': '~0.1.30' },
'devDependencies': {
'esprima-moz': '*',
'commonjs-everywhere': '~0.8.0',
'q': '*',
'bower': '*',
'semver': '*',
'chai': '~1.7.2',
'grunt-contrib-jshint': '~0.5.0',
'grunt-cli': '~0.1.9',
'grunt': '~0.4.1',
'grunt-mocha-test': '~0.6.2'
},
'licenses': [{
'type': 'BSD',
'url': 'http://github.com/Constellation/escodegen/raw/master/LICENSE.BSD'
}],
'scripts': {
'test': 'grunt travis',
'unit-test': 'grunt test',
'lint': 'grunt lint',
'release': 'node tools/release.js',
'build-min': './node_modules/.bin/cjsify -ma path: tools/entry-point.js > escodegen.browser.min.js',
'build': './node_modules/.bin/cjsify -a path: tools/entry-point.js > escodegen.browser.js'
}
};
});
require.define('/node_modules/source-map/lib/source-map.js', function (module, exports, __dirname, __filename) {
exports.SourceMapGenerator = require('/node_modules/source-map/lib/source-map/source-map-generator.js', module).SourceMapGenerator;
exports.SourceMapConsumer = require('/node_modules/source-map/lib/source-map/source-map-consumer.js', module).SourceMapConsumer;
exports.SourceNode = require('/node_modules/source-map/lib/source-map/source-node.js', module).SourceNode;
});
require.define('/node_modules/source-map/lib/source-map/source-node.js', function (module, exports, __dirname, __filename) {
if (typeof define !== 'function') {
var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
}
define(function (require, exports, module) {
var SourceMapGenerator = require('/node_modules/source-map/lib/source-map/source-map-generator.js', module).SourceMapGenerator;
var util = require('/node_modules/source-map/lib/source-map/util.js', module);
function SourceNode(aLine, aColumn, aSource, aChunks, aName) {
this.children = [];
this.sourceContents = {};
this.line = aLine === undefined ? null : aLine;
this.column = aColumn === undefined ? null : aColumn;
this.source = aSource === undefined ? null : aSource;
this.name = aName === undefined ? null : aName;
if (aChunks != null)
this.add(aChunks);
}
SourceNode.fromStringWithSourceMap = function SourceNode_fromStringWithSourceMap(aGeneratedCode, aSourceMapConsumer) {
var node = new SourceNode;
var remainingLines = aGeneratedCode.split('\n');
var lastGeneratedLine = 1, lastGeneratedColumn = 0;
var lastMapping = null;
aSourceMapConsumer.eachMapping(function (mapping) {
if (lastMapping === null) {
while (lastGeneratedLine < mapping.generatedLine) {
node.add(remainingLines.shift() + '\n');
lastGeneratedLine++;
}
if (lastGeneratedColumn < mapping.generatedColumn) {
var nextLine = remainingLines[0];
node.add(nextLine.substr(0, mapping.generatedColumn));
remainingLines[0] = nextLine.substr(mapping.generatedColumn);
lastGeneratedColumn = mapping.generatedColumn;
}
} else {
if (lastGeneratedLine < mapping.generatedLine) {
var code = '';
do {
code += remainingLines.shift() + '\n';
lastGeneratedLine++;
lastGeneratedColumn = 0;
} while (lastGeneratedLine < mapping.generatedLine);
if (lastGeneratedColumn < mapping.generatedColumn) {
var nextLine = remainingLines[0];
code += nextLine.substr(0, mapping.generatedColumn);
remainingLines[0] = nextLine.substr(mapping.generatedColumn);
lastGeneratedColumn = mapping.generatedColumn;
}
addMappingWithCode(lastMapping, code);
} else {
var nextLine = remainingLines[0];
var code = nextLine.substr(0, mapping.generatedColumn - lastGeneratedColumn);
remainingLines[0] = nextLine.substr(mapping.generatedColumn - lastGeneratedColumn);
lastGeneratedColumn = mapping.generatedColumn;
addMappingWithCode(lastMapping, code);
}
}
lastMapping = mapping;
}, this);
addMappingWithCode(lastMapping, remainingLines.join('\n'));
aSourceMapConsumer.sources.forEach(function (sourceFile) {
var content = aSourceMapConsumer.sourceContentFor(sourceFile);
if (content) {
node.setSourceContent(sourceFile, content);
}
});
return node;
function addMappingWithCode(mapping, code) {
if (mapping === null || mapping.source === undefined) {
node.add(code);
} else {
node.add(new SourceNode(mapping.originalLine, mapping.originalColumn, mapping.source, code, mapping.name));
}
}
};
SourceNode.prototype.add = function SourceNode_add(aChunk) {
if (Array.isArray(aChunk)) {
aChunk.forEach(function (chunk) {
this.add(chunk);
}, this);
} else if (aChunk instanceof SourceNode || typeof aChunk === 'string') {
if (aChunk) {
this.children.push(aChunk);
}
} else {
throw new TypeError('Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' + aChunk);
}
return this;
};
SourceNode.prototype.prepend = function SourceNode_prepend(aChunk) {
if (Array.isArray(aChunk)) {
for (var i = aChunk.length - 1; i >= 0; i--) {
this.prepend(aChunk[i]);
}
} else if (aChunk instanceof SourceNode || typeof aChunk === 'string') {
this.children.unshift(aChunk);
} else {
throw new TypeError('Expected a SourceNode, string, or an array of SourceNodes and strings. Got ' + aChunk);
}
return this;
};
SourceNode.prototype.walk = function SourceNode_walk(aFn) {
var chunk;
for (var i = 0, len = this.children.length; i < len; i++) {
chunk = this.children[i];
if (chunk instanceof SourceNode) {
chunk.walk(aFn);
} else {
if (chunk !== '') {
aFn(chunk, {
source: this.source,
line: this.line,
column: this.column,
name: this.name
});
}
}
}
};
SourceNode.prototype.join = function SourceNode_join(aSep) {
var newChildren;
var i;
var len = this.children.length;
if (len > 0) {
newChildren = [];
for (i = 0; i < len - 1; i++) {
newChildren.push(this.children[i]);
newChildren.push(aSep);
}
newChildren.push(this.children[i]);
this.children = newChildren;
}
return this;
};
SourceNode.prototype.replaceRight = function SourceNode_replaceRight(aPattern, aReplacement) {
var lastChild = this.children[this.children.length - 1];
if (lastChild instanceof SourceNode) {
lastChild.replaceRight(aPattern, aReplacement);
} else if (typeof lastChild === 'string') {
this.children[this.children.length - 1] = lastChild.replace(aPattern, aReplacement);
} else {
this.children.push(''.replace(aPattern, aReplacement));
}
return this;
};
SourceNode.prototype.setSourceContent = function SourceNode_setSourceContent(aSourceFile, aSourceContent) {
this.sourceContents[util.toSetString(aSourceFile)] = aSourceContent;
};
SourceNode.prototype.walkSourceContents = function SourceNode_walkSourceContents(aFn) {
for (var i = 0, len = this.children.length; i < len; i++) {
if (this.children[i] instanceof SourceNode) {
this.children[i].walkSourceContents(aFn);
}
}
var sources = Object.keys(this.sourceContents);
for (var i = 0, len = sources.length; i < len; i++) {
aFn(util.fromSetString(sources[i]), this.sourceContents[sources[i]]);
}
};
SourceNode.prototype.toString = function SourceNode_toString() {
var str = '';
this.walk(function (chunk) {
str += chunk;
});
return str;
};
SourceNode.prototype.toStringWithSourceMap = function SourceNode_toStringWithSourceMap(aArgs) {
var generated = {
code: '',
line: 1,
column: 0
};
var map = new SourceMapGenerator(aArgs);
var sourceMappingActive = false;
var lastOriginalSource = null;
var lastOriginalLine = null;
var lastOriginalColumn = null;
var lastOriginalName = null;
this.walk(function (chunk, original) {
generated.code += chunk;
if (original.source !== null && original.line !== null && original.column !== null) {
if (lastOriginalSource !== original.source || lastOriginalLine !== original.line || lastOriginalColumn !== original.column || lastOriginalName !== original.name) {
map.addMapping({
source: original.source,
original: {
line: original.line,
column: original.column
},
generated: {
line: generated.line,
column: generated.column
},
name: original.name
});
}
lastOriginalSource = original.source;
lastOriginalLine = original.line;
lastOriginalColumn = original.column;
lastOriginalName = original.name;
sourceMappingActive = true;
} else if (sourceMappingActive) {
map.addMapping({
generated: {
line: generated.line,
column: generated.column
}
});
lastOriginalSource = null;
sourceMappingActive = false;
}
chunk.split('').forEach(function (ch) {
if (ch === '\n') {
generated.line++;
generated.column = 0;
} else {
generated.column++;
}
});
});
this.walkSourceContents(function (sourceFile, sourceContent) {
map.setSourceContent(sourceFile, sourceContent);
});
return {
code: generated.code,
map: map
};
};
exports.SourceNode = SourceNode;
});
});
require.define('/node_modules/source-map/lib/source-map/util.js', function (module, exports, __dirname, __filename) {
if (typeof define !== 'function') {
var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
}
define(function (require, exports, module) {
function getArg(aArgs, aName, aDefaultValue) {
if (aName in aArgs) {
return aArgs[aName];
} else if (arguments.length === 3) {
return aDefaultValue;
} else {
throw new Error('"' + aName + '" is a required argument.');
}
}
exports.getArg = getArg;
var urlRegexp = /([\w+\-.]+):\/\/((\w+:\w+)@)?([\w.]+)?(:(\d+))?(\S+)?/;
var dataUrlRegexp = /^data:.+\,.+/;
function urlParse(aUrl) {
var match = aUrl.match(urlRegexp);
if (!match) {
return null;
}
return {
scheme: match[1],
auth: match[3],
host: match[4],
port: match[6],
path: match[7]
};
}
exports.urlParse = urlParse;
function urlGenerate(aParsedUrl) {
var url = aParsedUrl.scheme + '://';
if (aParsedUrl.auth) {
url += aParsedUrl.auth + '@';
}
if (aParsedUrl.host) {
url += aParsedUrl.host;
}
if (aParsedUrl.port) {
url += ':' + aParsedUrl.port;
}
if (aParsedUrl.path) {
url += aParsedUrl.path;
}
return url;
}
exports.urlGenerate = urlGenerate;
function join(aRoot, aPath) {
var url;
if (aPath.match(urlRegexp) || aPath.match(dataUrlRegexp)) {
return aPath;
}
if (aPath.charAt(0) === '/' && (url = urlParse(aRoot))) {
url.path = aPath;
return urlGenerate(url);
}
return aRoot.replace(/\/$/, '') + '/' + aPath;
}
exports.join = join;
function toSetString(aStr) {
return '$' + aStr;
}
exports.toSetString = toSetString;
function fromSetString(aStr) {
return aStr.substr(1);
}
exports.fromSetString = fromSetString;
function relative(aRoot, aPath) {
aRoot = aRoot.replace(/\/$/, '');
var url = urlParse(aRoot);
if (aPath.charAt(0) == '/' && url && url.path == '/') {
return aPath.slice(1);
}
return aPath.indexOf(aRoot + '/') === 0 ? aPath.substr(aRoot.length + 1) : aPath;
}
exports.relative = relative;
function strcmp(aStr1, aStr2) {
var s1 = aStr1 || '';
var s2 = aStr2 || '';
return (s1 > s2) - (s1 < s2);
}
function compareByOriginalPositions(mappingA, mappingB, onlyCompareOriginal) {
var cmp;
cmp = strcmp(mappingA.source, mappingB.source);
if (cmp) {
return cmp;
}
cmp = mappingA.originalLine - mappingB.originalLine;
if (cmp) {
return cmp;
}
cmp = mappingA.originalColumn - mappingB.originalColumn;
if (cmp || onlyCompareOriginal) {
return cmp;
}
cmp = strcmp(mappingA.name, mappingB.name);
if (cmp) {
return cmp;
}
cmp = mappingA.generatedLine - mappingB.generatedLine;
if (cmp) {
return cmp;
}
return mappingA.generatedColumn - mappingB.generatedColumn;
}
;
exports.compareByOriginalPositions = compareByOriginalPositions;
function compareByGeneratedPositions(mappingA, mappingB, onlyCompareGenerated) {
var cmp;
cmp = mappingA.generatedLine - mappingB.generatedLine;
if (cmp) {
return cmp;
}
cmp = mappingA.generatedColumn - mappingB.generatedColumn;
if (cmp || onlyCompareGenerated) {
return cmp;
}
cmp = strcmp(mappingA.source, mappingB.source);
if (cmp) {
return cmp;
}
cmp = mappingA.originalLine - mappingB.originalLine;
if (cmp) {
return cmp;
}
cmp = mappingA.originalColumn - mappingB.originalColumn;
if (cmp) {
return cmp;
}
return strcmp(mappingA.name, mappingB.name);
}
;
exports.compareByGeneratedPositions = compareByGeneratedPositions;
});
});
require.define('/node_modules/source-map/node_modules/amdefine/amdefine.js', function (module, exports, __dirname, __filename) {
'use strict';
function amdefine(module, requireFn) {
'use strict';
var defineCache = {}, loaderCache = {}, alreadyCalled = false, path = require('path', module), makeRequire, stringRequire;
function trimDots(ary) {
var i, part;
for (i = 0; ary[i]; i += 1) {
part = ary[i];
if (part === '.') {
ary.splice(i, 1);
i -= 1;
} else if (part === '..') {
if (i === 1 && (ary[2] === '..' || ary[0] === '..')) {
break;
} else if (i > 0) {
ary.splice(i - 1, 2);
i -= 2;
}
}
}
}
function normalize(name, baseName) {
var baseParts;
if (name && name.charAt(0) === '.') {
if (baseName) {
baseParts = baseName.split('/');
baseParts = baseParts.slice(0, baseParts.length - 1);
baseParts = baseParts.concat(name.split('/'));
trimDots(baseParts);
name = baseParts.join('/');
}
}
return name;
}
function makeNormalize(relName) {
return function (name) {
return normalize(name, relName);
};
}
function makeLoad(id) {
function load(value) {
loaderCache[id] = value;
}
load.fromText = function (id, text) {
throw new Error('amdefine does not implement load.fromText');
};
return load;
}
makeRequire = function (systemRequire, exports, module, relId) {
function amdRequire(deps, callback) {
if (typeof deps === 'string') {
return stringRequire(systemRequire, exports, module, deps, relId);
} else {
deps = deps.map(function (depName) {
return stringRequire(systemRequire, exports, module, depName, relId);
});
process.nextTick(function () {
callback.apply(null, deps);
});
}
}
amdRequire.toUrl = function (filePath) {
if (filePath.indexOf('.') === 0) {
return normalize(filePath, path.dirname(module.filename));
} else {
return filePath;
}
};
return amdRequire;
};
requireFn = requireFn || function req() {
return module.require.apply(module, arguments);
};
function runFactory(id, deps, factory) {
var r, e, m, result;
if (id) {
e = loaderCache[id] = {};
m = {
id: id,
uri: __filename,
exports: e
};
r = makeRequire(requireFn, e, m, id);
} else {
if (alreadyCalled) {
throw new Error('amdefine with no module ID cannot be called more than once per file.');
}
alreadyCalled = true;
e = module.exports;
m = module;
r = makeRequire(requireFn, e, m, module.id);
}
if (deps) {
deps = deps.map(function (depName) {
return r(depName);
});
}
if (typeof factory === 'function') {
result = factory.apply(m.exports, deps);
} else {
result = factory;
}
if (result !== undefined) {
m.exports = result;
if (id) {
loaderCache[id] = m.exports;
}
}
}
stringRequire = function (systemRequire, exports, module, id, relId) {
var index = id.indexOf('!'), originalId = id, prefix, plugin;
if (index === -1) {
id = normalize(id, relId);
if (id === 'require') {
return makeRequire(systemRequire, exports, module, relId);
} else if (id === 'exports') {
return exports;
} else if (id === 'module') {
return module;
} else if (loaderCache.hasOwnProperty(id)) {
return loaderCache[id];
} else if (defineCache[id]) {
runFactory.apply(null, defineCache[id]);
return loaderCache[id];
} else {
if (systemRequire) {
return systemRequire(originalId);
} else {
throw new Error('No module with ID: ' + id);
}
}
} else {
prefix = id.substring(0, index);
id = id.substring(index + 1, id.length);
plugin = stringRequire(systemRequire, exports, module, prefix, relId);
if (plugin.normalize) {
id = plugin.normalize(id, makeNormalize(relId));
} else {
id = normalize(id, relId);
}
if (loaderCache[id]) {
return loaderCache[id];
} else {
plugin.load(id, makeRequire(systemRequire, exports, module, relId), makeLoad(id), {});
return loaderCache[id];
}
}
};
function define(id, deps, factory) {
if (Array.isArray(id)) {
factory = deps;
deps = id;
id = undefined;
} else if (typeof id !== 'string') {
factory = id;
id = deps = undefined;
}
if (deps && !Array.isArray(deps)) {
factory = deps;
deps = undefined;
}
if (!deps) {
deps = [
'require',
'exports',
'module'
];
}
if (id) {
defineCache[id] = [
id,
deps,
factory
];
} else {
runFactory(id, deps, factory);
}
}
define.require = function (id) {
if (loaderCache[id]) {
return loaderCache[id];
}
if (defineCache[id]) {
runFactory.apply(null, defineCache[id]);
return loaderCache[id];
}
};
define.amd = {};
return define;
}
module.exports = amdefine;
});
require.define('/node_modules/source-map/lib/source-map/source-map-generator.js', function (module, exports, __dirname, __filename) {
if (typeof define !== 'function') {
var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
}
define(function (require, exports, module) {
var base64VLQ = require('/node_modules/source-map/lib/source-map/base64-vlq.js', module);
var util = require('/node_modules/source-map/lib/source-map/util.js', module);
var ArraySet = require('/node_modules/source-map/lib/source-map/array-set.js', module).ArraySet;
function SourceMapGenerator(aArgs) {
this._file = util.getArg(aArgs, 'file');
this._sourceRoot = util.getArg(aArgs, 'sourceRoot', null);
this._sources = new ArraySet;
this._names = new ArraySet;
this._mappings = [];
this._sourcesContents = null;
}
SourceMapGenerator.prototype._version = 3;
SourceMapGenerator.fromSourceMap = function SourceMapGenerator_fromSourceMap(aSourceMapConsumer) {
var sourceRoot = aSourceMapConsumer.sourceRoot;
var generator = new SourceMapGenerator({
file: aSourceMapConsumer.file,
sourceRoot: sourceRoot
});
aSourceMapConsumer.eachMapping(function (mapping) {
var newMapping = {
generated: {
line: mapping.generatedLine,
column: mapping.generatedColumn
}
};
if (mapping.source) {
newMapping.source = mapping.source;
if (sourceRoot) {
newMapping.source = util.relative(sourceRoot, newMapping.source);
}
newMapping.original = {
line: mapping.originalLine,
column: mapping.originalColumn
};
if (mapping.name) {
newMapping.name = mapping.name;
}
}
generator.addMapping(newMapping);
});
aSourceMapConsumer.sources.forEach(function (sourceFile) {
var content = aSourceMapConsumer.sourceContentFor(sourceFile);
if (content) {
generator.setSourceContent(sourceFile, content);
}
});
return generator;
};
SourceMapGenerator.prototype.addMapping = function SourceMapGenerator_addMapping(aArgs) {
var generated = util.getArg(aArgs, 'generated');
var original = util.getArg(aArgs, 'original', null);
var source = util.getArg(aArgs, 'source', null);
var name = util.getArg(aArgs, 'name', null);
this._validateMapping(generated, original, source, name);
if (source && !this._sources.has(source)) {
this._sources.add(source);
}
if (name && !this._names.has(name)) {
this._names.add(name);
}
this._mappings.push({
generatedLine: generated.line,
generatedColumn: generated.column,
originalLine: original != null && original.line,
originalColumn: original != null && original.column,
source: source,
name: name
});
};
SourceMapGenerator.prototype.setSourceContent = function SourceMapGenerator_setSourceContent(aSourceFile, aSourceContent) {
var source = aSourceFile;
if (this._sourceRoot) {
source = util.relative(this._sourceRoot, source);
}
if (aSourceContent !== null) {
if (!this._sourcesContents) {
this._sourcesContents = {};
}
this._sourcesContents[util.toSetString(source)] = aSourceContent;
} else {
delete this._sourcesContents[util.toSetString(source)];
if (Object.keys(this._sourcesContents).length === 0) {
this._sourcesContents = null;
}
}
};
SourceMapGenerator.prototype.applySourceMap = function SourceMapGenerator_applySourceMap(aSourceMapConsumer, aSourceFile) {
if (!aSourceFile) {
aSourceFile = aSourceMapConsumer.file;
}
var sourceRoot = this._sourceRoot;
if (sourceRoot) {
aSourceFile = util.relative(sourceRoot, aSourceFile);
}
var newSources = new ArraySet;
var newNames = new ArraySet;
this._mappings.forEach(function (mapping) {
if (mapping.source === aSourceFile && mapping.originalLine) {
var original = aSourceMapConsumer.originalPositionFor({
line: mapping.originalLine,
column: mapping.originalColumn
});
if (original.source !== null) {
if (sourceRoot) {
mapping.source = util.relative(sourceRoot, original.source);
} else {
mapping.source = original.source;
}
mapping.originalLine = original.line;
mapping.originalColumn = original.column;
if (original.name !== null && mapping.name !== null) {
mapping.name = original.name;
}
}
}
var source = mapping.source;
if (source && !newSources.has(source)) {
newSources.add(source);
}
var name = mapping.name;
if (name && !newNames.has(name)) {
newNames.add(name);
}
}, this);
this._sources = newSources;
this._names = newNames;
aSourceMapConsumer.sources.forEach(function (sourceFile) {
var content = aSourceMapConsumer.sourceContentFor(sourceFile);
if (content) {
if (sourceRoot) {
sourceFile = util.relative(sourceRoot, sourceFile);
}
this.setSourceContent(sourceFile, content);
}
}, this);
};
SourceMapGenerator.prototype._validateMapping = function SourceMapGenerator_validateMapping(aGenerated, aOriginal, aSource, aName) {
if (aGenerated && 'line' in aGenerated && 'column' in aGenerated && aGenerated.line > 0 && aGenerated.column >= 0 && !aOriginal && !aSource && !aName) {
return;
} 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) {
return;
} else {
throw new Error('Invalid mapping: ' + JSON.stringify({
generated: aGenerated,
source: aSource,
orginal: aOriginal,
name: aName
}));
}
};
SourceMapGenerator.prototype._serializeMappings = function SourceMapGenerator_serializeMappings() {
var previousGeneratedColumn = 0;
var previousGeneratedLine = 1;
var previousOriginalColumn = 0;
var previousOriginalLine = 0;
var previousName = 0;
var previousSource = 0;
var result = '';
var mapping;
this._mappings.sort(util.compareByGeneratedPositions);
for (var i = 0, len = this._mappings.length; i < len; i++) {
mapping = this._mappings[i];
if (mapping.generatedLine !== previousGeneratedLine) {
previousGeneratedColumn = 0;
while (mapping.generatedLine !== previousGeneratedLine) {
result += ';';
previousGeneratedLine++;
}
} else {
if (i > 0) {
if (!util.compareByGeneratedPositions(mapping, this._mappings[i - 1])) {
continue;
}
result += ',';
}
}
result += base64VLQ.encode(mapping.generatedColumn - previousGeneratedColumn);
previousGeneratedColumn = mapping.generatedColumn;
if (mapping.source) {
result += base64VLQ.encode(this._sources.indexOf(mapping.source) - previousSource);
previousSource = this._sources.indexOf(mapping.source);
result += base64VLQ.encode(mapping.originalLine - 1 - previousOriginalLine);
previousOriginalLine = mapping.originalLine - 1;
result += base64VLQ.encode(mapping.originalColumn - previousOriginalColumn);
previousOriginalColumn = mapping.originalColumn;
if (mapping.name) {
result += base64VLQ.encode(this._names.indexOf(mapping.name) - previousName);
previousName = this._names.indexOf(mapping.name);
}
}
}
return result;
};
SourceMapGenerator.prototype._generateSourcesContent = function SourceMapGenerator_generateSourcesContent(aSources, aSourceRoot) {
return aSources.map(function (source) {
if (!this._sourcesContents) {
return null;
}
if (aSourceRoot) {
source = util.relative(aSourceRoot, source);
}
var key = util.toSetString(source);
return Object.prototype.hasOwnProperty.call(this._sourcesContents, key) ? this._sourcesContents[key] : null;
}, this);
};
SourceMapGenerator.prototype.toJSON = function SourceMapGenerator_toJSON() {
var map = {
version: this._version,
file: this._file,
sources: this._sources.toArray(),
names: this._names.toArray(),
mappings: this._serializeMappings()
};
if (this._sourceRoot) {
map.sourceRoot = this._sourceRoot;
}
if (this._sourcesContents) {
map.sourcesContent = this._generateSourcesContent(map.sources, map.sourceRoot);
}
return map;
};
SourceMapGenerator.prototype.toString = function SourceMapGenerator_toString() {
return JSON.stringify(this);
};
exports.SourceMapGenerator = SourceMapGenerator;
});
});
require.define('/node_modules/source-map/lib/source-map/array-set.js', function (module, exports, __dirname, __filename) {
if (typeof define !== 'function') {
var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
}
define(function (require, exports, module) {
var util = require('/node_modules/source-map/lib/source-map/util.js', module);
function ArraySet() {
this._array = [];
this._set = {};
}
ArraySet.fromArray = function ArraySet_fromArray(aArray, aAllowDuplicates) {
var set = new ArraySet;
for (var i = 0, len = aArray.length; i < len; i++) {
set.add(aArray[i], aAllowDuplicates);
}
return set;
};
ArraySet.prototype.add = function ArraySet_add(aStr, aAllowDuplicates) {
var isDuplicate = this.has(aStr);
var idx = this._array.length;
if (!isDuplicate || aAllowDuplicates) {
this._array.push(aStr);
}
if (!isDuplicate) {
this._set[util.toSetString(aStr)] = idx;
}
};
ArraySet.prototype.has = function ArraySet_has(aStr) {
return Object.prototype.hasOwnProperty.call(this._set, util.toSetString(aStr));
};
ArraySet.prototype.indexOf = function ArraySet_indexOf(aStr) {
if (this.has(aStr)) {
return this._set[util.toSetString(aStr)];
}
throw new Error('"' + aStr + '" is not in the set.');
};
ArraySet.prototype.at = function ArraySet_at(aIdx) {
if (aIdx >= 0 && aIdx < this._array.length) {
return this._array[aIdx];
}
throw new Error('No element indexed by ' + aIdx);
};
ArraySet.prototype.toArray = function ArraySet_toArray() {
return this._array.slice();
};
exports.ArraySet = ArraySet;
});
});
require.define('/node_modules/source-map/lib/source-map/base64-vlq.js', function (module, exports, __dirname, __filename) {
if (typeof define !== 'function') {
var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
}
define(function (require, exports, module) {
var base64 = require('/node_modules/source-map/lib/source-map/base64.js', module);
var VLQ_BASE_SHIFT = 5;
var VLQ_BASE = 1 << VLQ_BASE_SHIFT;
var VLQ_BASE_MASK = VLQ_BASE - 1;
var VLQ_CONTINUATION_BIT = VLQ_BASE;
function toVLQSigned(aValue) {
return aValue < 0 ? (-aValue << 1) + 1 : (aValue << 1) + 0;
}
function fromVLQSigned(aValue) {
var isNegative = (aValue & 1) === 1;
var shifted = aValue >> 1;
return isNegative ? -shifted : shifted;
}
exports.encode = function base64VLQ_encode(aValue) {
var encoded = '';
var digit;
var vlq = toVLQSigned(aValue);
do {
digit = vlq & VLQ_BASE_MASK;
vlq >>>= VLQ_BASE_SHIFT;
if (vlq > 0) {
digit |= VLQ_CONTINUATION_BIT;
}
encoded += base64.encode(digit);
} while (vlq > 0);
return encoded;
};
exports.decode = function base64VLQ_decode(aStr) {
var i = 0;
var strLen = aStr.length;
var result = 0;
var shift = 0;
var continuation, digit;
do {
if (i >= strLen) {
throw new Error('Expected more digits in base 64 VLQ value.');
}
digit = base64.decode(aStr.charAt(i++));
continuation = !!(digit & VLQ_CONTINUATION_BIT);
digit &= VLQ_BASE_MASK;
result = result + (digit << shift);
shift += VLQ_BASE_SHIFT;
} while (continuation);
return {
value: fromVLQSigned(result),
rest: aStr.slice(i)
};
};
});
});
require.define('/node_modules/source-map/lib/source-map/base64.js', function (module, exports, __dirname, __filename) {
if (typeof define !== 'function') {
var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
}
define(function (require, exports, module) {
var charToIntMap = {};
var intToCharMap = {};
'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'.split('').forEach(function (ch, index) {
charToIntMap[ch] = index;
intToCharMap[index] = ch;
});
exports.encode = function base64_encode(aNumber) {
if (aNumber in intToCharMap) {
return intToCharMap[aNumber];
}
throw new TypeError('Must be between 0 and 63: ' + aNumber);
};
exports.decode = function base64_decode(aChar) {
if (aChar in charToIntMap) {
return charToIntMap[aChar];
}
throw new TypeError('Not a valid base 64 digit: ' + aChar);
};
});
});
require.define('/node_modules/source-map/lib/source-map/source-map-consumer.js', function (module, exports, __dirname, __filename) {
if (typeof define !== 'function') {
var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
}
define(function (require, exports, module) {
var util = require('/node_modules/source-map/lib/source-map/util.js', module);
var binarySearch = require('/node_modules/source-map/lib/source-map/binary-search.js', module);
var ArraySet = require('/node_modules/source-map/lib/source-map/array-set.js', module).ArraySet;
var base64VLQ = require('/node_modules/source-map/lib/source-map/base64-vlq.js', module);
function SourceMapConsumer(aSourceMap) {
var sourceMap = aSourceMap;
if (typeof aSourceMap === 'string') {
sourceMap = JSON.parse(aSourceMap.replace(/^\)\]\}'/, ''));
}
var version = util.getArg(sourceMap, 'version');
var sources = util.getArg(sourceMap, 'sources');
var names = util.getArg(sourceMap, 'names', []);
var sourceRoot = util.getArg(sourceMap, 'sourceRoot', null);
var sourcesContent = util.getArg(sourceMap, 'sourcesContent', null);
var mappings = util.getArg(sourceMap, 'mappings');
var file = util.getArg(sourceMap, 'file', null);
if (version != this._version) {
throw new Error('Unsupported version: ' + version);
}
this._names = ArraySet.fromArray(names, true);
this._sources = ArraySet.fromArray(sources, true);
this.sourceRoot = sourceRoot;
this.sourcesContent = sourcesContent;
this._mappings = mappings;
this.file = file;
}
SourceMapConsumer.fromSourceMap = function SourceMapConsumer_fromSourceMap(aSourceMap) {
var smc = Object.create(SourceMapConsumer.prototype);
smc._names = ArraySet.fromArray(aSourceMap._names.toArray(), true);
smc._sources = ArraySet.fromArray(aSourceMap._sources.toArray(), true);
smc.sourceRoot = aSourceMap._sourceRoot;
smc.sourcesContent = aSourceMap._generateSourcesContent(smc._sources.toArray(), smc.sourceRoot);
smc.file = aSourceMap._file;
smc.__generatedMappings = aSourceMap._mappings.slice().sort(util.compareByGeneratedPositions);
smc.__originalMappings = aSourceMap._mappings.slice().sort(util.compareByOriginalPositions);
return smc;
};
SourceMapConsumer.prototype._version = 3;
Object.defineProperty(SourceMapConsumer.prototype, 'sources', {
get: function () {
return this._sources.toArray().map(function (s) {
return this.sourceRoot ? util.join(this.sourceRoot, s) : s;
}, this);
}
});
SourceMapConsumer.prototype.__generatedMappings = null;
Object.defineProperty(SourceMapConsumer.prototype, '_generatedMappings', {
get: function () {
if (!this.__generatedMappings) {
this.__generatedMappings = [];
this.__originalMappings = [];
this._parseMappings(this._mappings, this.sourceRoot);
}
return this.__generatedMappings;
}
});
SourceMapConsumer.prototype.__originalMappings = null;
Object.defineProperty(SourceMapConsumer.prototype, '_originalMappings', {
get: function () {
if (!this.__originalMappings) {
this.__generatedMappings = [];
this.__originalMappings = [];
this._parseMappings(this._mappings, this.sourceRoot);
}
return this.__originalMappings;
}
});
SourceMapConsumer.prototype._parseMappings = function SourceMapConsumer_parseMappings(aStr, aSourceRoot) {
var generatedLine = 1;
var previousGeneratedColumn = 0;
var previousOriginalLine = 0;
var previousOriginalColumn = 0;
var previousSource = 0;
var previousName = 0;
var mappingSeparator = /^[,;]/;
var str = aStr;
var mapping;
var temp;
while (str.length > 0) {
if (str.charAt(0) === ';') {
generatedLine++;
str = str.slice(1);
previousGeneratedColumn = 0;
} else if (str.charAt(0) === ',') {
str = str.slice(1);
} else {
mapping = {};
mapping.generatedLine = generatedLine;
temp = base64VLQ.decode(str);
mapping.generatedColumn = previousGeneratedColumn + temp.value;
previousGeneratedColumn = mapping.generatedColumn;
str = temp.rest;
if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {
temp = base64VLQ.decode(str);
mapping.source = this._sources.at(previousSource + temp.value);
previousSource += temp.value;
str = temp.rest;
if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {
throw new Error('Found a source, but no line and column');
}
temp = base64VLQ.decode(str);
mapping.originalLine = previousOriginalLine + temp.value;
previousOriginalLine = mapping.originalLine;
mapping.originalLine += 1;
str = temp.rest;
if (str.length === 0 || mappingSeparator.test(str.charAt(0))) {
throw new Error('Found a source and line, but no column');
}
temp = base64VLQ.decode(str);
mapping.originalColumn = previousOriginalColumn + temp.value;
previousOriginalColumn = mapping.originalColumn;
str = temp.rest;
if (str.length > 0 && !mappingSeparator.test(str.charAt(0))) {
temp = base64VLQ.decode(str);
mapping.name = this._names.at(previousName + temp.value);
previousName += temp.value;
str = temp.rest;
}
}
this.__generatedMappings.push(mapping);
if (typeof mapping.originalLine === 'number') {
this.__originalMappings.push(mapping);
}
}
}
this.__originalMappings.sort(util.compareByOriginalPositions);
};
SourceMapConsumer.prototype._findMapping = function SourceMapConsumer_findMapping(aNeedle, aMappings, aLineName, aColumnName, aComparator) {
if (aNeedle[aLineName] <= 0) {
throw new TypeError('Line must be greater than or equal to 1, got ' + aNeedle[aLineName]);
}
if (aNeedle[aColumnName] < 0) {
throw new TypeError('Column must be greater than or equal to 0, got ' + aNeedle[aColumnName]);
}
return binarySearch.search(aNeedle, aMappings, aComparator);
};
SourceMapConsumer.prototype.originalPositionFor = function SourceMapConsumer_originalPositionFor(aArgs) {
var needle = {
generatedLine: util.getArg(aArgs, 'line'),
generatedColumn: util.getArg(aArgs, 'column')
};
var mapping = this._findMapping(needle, this._generatedMappings, 'generatedLine', 'generatedColumn', util.compareByGeneratedPositions);
if (mapping) {
var source = util.getArg(mapping, 'source', null);
if (source && this.sourceRoot) {
source = util.join(this.sourceRoot, source);
}
return {
source: source,
line: util.getArg(mapping, 'originalLine', null),
column: util.getArg(mapping, 'originalColumn', null),
name: util.getArg(mapping, 'name', null)
};
}
return {
source: null,
line: null,
column: null,
name: null
};
};
SourceMapConsumer.prototype.sourceContentFor = function SourceMapConsumer_sourceContentFor(aSource) {
if (!this.sourcesContent) {
return null;
}
if (this.sourceRoot) {
aSource = util.relative(this.sourceRoot, aSource);
}
if (this._sources.has(aSource)) {
return this.sourcesContent[this._sources.indexOf(aSource)];
}
var url;
if (this.sourceRoot && (url = util.urlParse(this.sourceRoot))) {
var fileUriAbsPath = aSource.replace(/^file:\/\//, '');
if (url.scheme == 'file' && this._sources.has(fileUriAbsPath)) {
return this.sourcesContent[this._sources.indexOf(fileUriAbsPath)];
}
if ((!url.path || url.path == '/') && this._sources.has('/' + aSource)) {
return this.sourcesContent[this._sources.indexOf('/' + aSource)];
}
}
throw new Error('"' + aSource + '" is not in the SourceMap.');
};
SourceMapConsumer.prototype.generatedPositionFor = function SourceMapConsumer_generatedPositionFor(aArgs) {
var needle = {
source: util.getArg(aArgs, 'source'),
originalLine: util.getArg(aArgs, 'line'),
originalColumn: util.getArg(aArgs, 'column')
};
if (this.sourceRoot) {
needle.source = util.relative(this.sourceRoot, needle.source);
}
var mapping = this._findMapping(needle, this._originalMappings, 'originalLine', 'originalColumn', util.compareByOriginalPositions);
if (mapping) {
return {
line: util.getArg(mapping, 'generatedLine', null),
column: util.getArg(mapping, 'generatedColumn', null)
};
}
return {
line: null,
column: null
};
};
SourceMapConsumer.GENERATED_ORDER = 1;
SourceMapConsumer.ORIGINAL_ORDER = 2;
SourceMapConsumer.prototype.eachMapping = function SourceMapConsumer_eachMapping(aCallback, aContext, aOrder) {
var context = aContext || null;
var order = aOrder || SourceMapConsumer.GENERATED_ORDER;
var mappings;
switch (order) {
case SourceMapConsumer.GENERATED_ORDER:
mappings = this._generatedMappings;
break;
case SourceMapConsumer.ORIGINAL_ORDER:
mappings = this._originalMappings;
break;
default:
throw new Error('Unknown order of iteration.');
}
var sourceRoot = this.sourceRoot;
mappings.map(function (mapping) {
var source = mapping.source;
if (source && sourceRoot) {
source = util.join(sourceRoot, source);
}
return {
source: source,
generatedLine: mapping.generatedLine,
generatedColumn: mapping.generatedColumn,
originalLine: mapping.originalLine,
originalColumn: mapping.originalColumn,
name: mapping.name
};
}).forEach(aCallback, context);
};
exports.SourceMapConsumer = SourceMapConsumer;
});
});
require.define('/node_modules/source-map/lib/source-map/binary-search.js', function (module, exports, __dirname, __filename) {
if (typeof define !== 'function') {
var define = require('/node_modules/source-map/node_modules/amdefine/amdefine.js', module)(module, require);
}
define(function (require, exports, module) {
function recursiveSearch(aLow, aHigh, aNeedle, aHaystack, aCompare) {
var mid = Math.floor((aHigh - aLow) / 2) + aLow;
var cmp = aCompare(aNeedle, aHaystack[mid], true);
if (cmp === 0) {
return aHaystack[mid];
} else if (cmp > 0) {
if (aHigh - mid > 1) {
return recursiveSearch(mid, aHigh, aNeedle, aHaystack, aCompare);
}
return aHaystack[mid];
} else {
if (mid - aLow > 1) {
return recursiveSearch(aLow, mid, aNeedle, aHaystack, aCompare);
}
return aLow < 0 ? null : aHaystack[aLow];
}
}
exports.search = function search(aNeedle, aHaystack, aCompare) {
return aHaystack.length > 0 ? recursiveSearch(-1, aHaystack.length, aNeedle, aHaystack, aCompare) : null;
};
});
});
require.define('/node_modules/esutils/lib/utils.js', function (module, exports, __dirname, __filename) {
(function () {
'use strict';
exports.code = require('/node_modules/esutils/lib/code.js', module);
exports.keyword = require('/node_modules/esutils/lib/keyword.js', module);
}());
});
require.define('/node_modules/esutils/lib/keyword.js', function (module, exports, __dirname, __filename) {
(function () {
'use strict';
var code = require('/node_modules/esutils/lib/code.js', module);
function isStrictModeReservedWordES6(id) {
switch (id) {
case 'implements':
case 'interface':
case 'package':
case 'private':
case 'protected':
case 'public':
case 'static':
case 'let':
return true;
default:
return false;
}
}
function isKeywordES5(id, strict) {
if (!strict && id === 'yield') {
return false;
}
return isKeywordES6(id, strict);
}
function isKeywordES6(id, strict) {
if (strict && isStrictModeReservedWordES6(id)) {
return true;
}
switch (id.length) {
case 2:
return id === 'if' || id === 'in' || id === 'do';
case 3:
return id === 'var' || id === 'for' || id === 'new' || id === 'try';
case 4:
return id === 'this' || id === 'else' || id === 'case' || id === 'void' || id === 'with' || id === 'enum';
case 5:
return id === 'while' || id === 'break' || id === 'catch' || id === 'throw' || id === 'const' || id === 'yield' || id === 'class' || id === 'super';
case 6:
return id === 'return' || id === 'typeof' || id === 'delete' || id === 'switch' || id === 'export' || id === 'import';
case 7:
return id === 'default' || id === 'finally' || id === 'extends';
case 8:
return id === 'function' || id === 'continue' || id === 'debugger';
case 10:
return id === 'instanceof';
default:
return false;
}
}
function isRestrictedWord(id) {
return id === 'eval' || id === 'arguments';
}
function isIdentifierName(id) {
var i, iz, ch;
if (id.length === 0) {
return false;
}
ch = id.charCodeAt(0);
if (!code.isIdentifierStart(ch) || ch === 92) {
return false;
}
for (i = 1, iz = id.length; i < iz; ++i) {
ch = id.charCodeAt(i);
if (!code.isIdentifierPart(ch) || ch === 92) {
return false;
}
}
return true;
}
module.exports = {
isKeywordES5: isKeywordES5,
isKeywordES6: isKeywordES6,
isRestrictedWord: isRestrictedWord,
isIdentifierName: isIdentifierName
};
}());
});
require.define('/node_modules/esutils/lib/code.js', function (module, exports, __dirname, __filename) {
(function () {
'use strict';
var Regex;
Regex = {
NonAsciiIdentifierStart: new RegExp('[\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ec\u02ee\u0370-\u0374\u0376\u0377\u037a-\u037d\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03f5\u03f7-\u0481\u048a-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0620-\u064a\u066e\u066f\u0671-\u06d3\u06d5\u06e5\u06e6\u06ee\u06ef\u06fa-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u07a5\u07b1\u07ca-\u07ea\u07f4\u07f5\u07fa\u0800-\u0815\u081a\u0824\u0828\u0840-\u0858\u08a0\u08a2-\u08ac\u0904-\u0939\u093d\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097f\u0985-\u098c\u098f\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc\u09dd\u09df-\u09e1\u09f0\u09f1\u0a05-\u0a0a\u0a0f\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32\u0a33\u0a35\u0a36\u0a38\u0a39\u0a59-\u0a5c\u0a5e\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0\u0ae1\u0b05-\u0b0c\u0b0f\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32\u0b33\u0b35-\u0b39\u0b3d\u0b5c\u0b5d\u0b5f-\u0b61\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99\u0b9a\u0b9c\u0b9e\u0b9f\u0ba3\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0bd0\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c3d\u0c58\u0c59\u0c60\u0c61\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0\u0ce1\u0cf1\u0cf2\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d3a\u0d3d\u0d4e\u0d60\u0d61\u0d7a-\u0d7f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32\u0e33\u0e40-\u0e46\u0e81\u0e82\u0e84\u0e87\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa\u0eab\u0ead-\u0eb0\u0eb2\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0edc-\u0edf\u0f00\u0f40-\u0f47\u0f49-\u0f6c\u0f88-\u0f8c\u1000-\u102a\u103f\u1050-\u1055\u105a-\u105d\u1061\u1065\u1066\u106e-\u1070\u1075-\u1081\u108e\u10a0-\u10c5\u10c7\u10cd\u10d0-\u10fa\u10fc-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u167f\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u1820-\u1877\u1880-\u18a8\u18aa\u18b0-\u18f5\u1900-\u191c\u1950-\u196d\u1970-\u1974\u1980-\u19ab\u19c1-\u19c7\u1a00-\u1a16\u1a20-\u1a54\u1aa7\u1b05-\u1b33\u1b45-\u1b4b\u1b83-\u1ba0\u1bae\u1baf\u1bba-\u1be5\u1c00-\u1c23\u1c4d-\u1c4f\u1c5a-\u1c7d\u1ce9-\u1cec\u1cee-\u1cf1\u1cf5\u1cf6\u1d00-\u1dbf\u1e00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2071\u207f\u2090-\u209c\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2139\u213c-\u213f\u2145-\u2149\u214e\u2160-\u2188\u2c00-\u2c2e\u2c30-\u2c5e\u2c60-\u2ce4\u2ceb-\u2cee\u2cf2\u2cf3\u2d00-\u2d25\u2d27\u2d2d\u2d30-\u2d67\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u2e2f\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312d\u3131-\u318e\u31a0-\u31ba\u31f0-\u31ff\u3400-\u4db5\u4e00-\u9fcc\ua000-\ua48c\ua4d0-\ua4fd\ua500-\ua60c\ua610-\ua61f\ua62a\ua62b\ua640-\ua66e\ua67f-\ua697\ua6a0-\ua6ef\ua717-\ua71f\ua722-\ua788\ua78b-\ua78e\ua790-\ua793\ua7a0-\ua7aa\ua7f8-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\ua840-\ua873\ua882-\ua8b3\ua8f2-\ua8f7\ua8fb\ua90a-\ua925\ua930-\ua946\ua960-\ua97c\ua984-\ua9b2\ua9cf\uaa00-\uaa28\uaa40-\uaa42\uaa44-\uaa4b\uaa60-\uaa76\uaa7a\uaa80-\uaaaf\uaab1\uaab5\uaab6\uaab9-\uaabd\uaac0\uaac2\uaadb-\uaadd\uaae0-\uaaea\uaaf2-\uaaf4\uab01-\uab06\uab09-\uab0e\uab11-\uab16\uab20-\uab26\uab28-\uab2e\uabc0-\uabe2\uac00-\ud7a3\ud7b0-\ud7c6\ud7cb-\ud7fb\uf900-\ufa6d\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40\ufb41\ufb43\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]'),
NonAsciiIdentifierPart: new 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\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc]')
};
function isDecimalDigit(ch) {
return ch >= 48 && ch <= 57;
}
function isHexDigit(ch) {
return isDecimalDigit(ch) || 97 <= ch && ch <= 102 || 65 <= ch && ch <= 70;
}
function isOctalDigit(ch) {
return ch >= 48 && ch <= 55;
}
function isWhiteSpace(ch) {
return ch === 32 || ch === 9 || ch === 11 || ch === 12 || ch === 160 || ch >= 5760 && [
5760,
6158,
8192,
8193,
8194,
8195,
8196,
8197,
8198,
8199,
8200,
8201,
8202,
8239,
8287,
12288,
65279
].indexOf(ch) >= 0;
}
function isLineTerminator(ch) {
return ch === 10 || ch === 13 || ch === 8232 || ch === 8233;
}
function isIdentifierStart(ch) {
return ch === 36 || ch === 95 || ch >= 65 && ch <= 90 || ch >= 97 && ch <= 122 || ch === 92 || ch >= 128 && Regex.NonAsciiIdentifierStart.test(String.fromCharCode(ch));
}
function isIdentifierPart(ch) {
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));
}
module.exports = {
isDecimalDigit: isDecimalDigit,
isHexDigit: isHexDigit,
isOctalDigit: isOctalDigit,
isWhiteSpace: isWhiteSpace,
isLineTerminator: isLineTerminator,
isIdentifierStart: isIdentifierStart,
isIdentifierPart: isIdentifierPart
};
}());
});
require.define('/node_modules/estraverse/estraverse.js', function (module, exports, __dirname, __filename) {
(function (root, factory) {
'use strict';
if (typeof define === 'function' && define.amd) {
define(['exports'], factory);
} else if (typeof exports !== 'undefined') {
factory(exports);
} else {
factory(root.estraverse = {});
}
}(this, function (exports) {
'use strict';
var Syntax, isArray, VisitorOption, VisitorKeys, BREAK, SKIP;
Syntax = {
AssignmentExpression: 'AssignmentExpression',
ArrayExpression: 'ArrayExpression',
ArrayPattern: 'ArrayPattern',
ArrowFunctionExpression: 'ArrowFunctionExpression',
BlockStatement: 'BlockStatement',
BinaryExpression: 'BinaryExpression',
BreakStatement: 'BreakStatement',
CallExpression: 'CallExpression',
CatchClause: 'CatchClause',
ClassBody: 'ClassBody',
ClassDeclaration: 'ClassDeclaration',
ClassExpression: 'ClassExpression',
ConditionalExpression: 'ConditionalExpression',
ContinueStatement: 'ContinueStatement',
DebuggerStatement: 'DebuggerStatement',
DirectiveStatement: 'DirectiveStatement',
DoWhileStatement: 'DoWhileStatement',
EmptyStatement: 'EmptyStatement',
ExpressionStatement: 'ExpressionStatement',
ForStatement: 'ForStatement',
ForInStatement: 'ForInStatement',
FunctionDeclaration: 'FunctionDeclaration',
FunctionExpression: 'FunctionExpression',
Identifier: 'Identifier',
IfStatement: 'IfStatement',
Literal: 'Literal',
LabeledStatement: 'LabeledStatement',
LogicalExpression: 'LogicalExpression',
MemberExpression: 'MemberExpression',
MethodDefinition: 'MethodDefinition',
NewExpression: 'NewExpression',
ObjectExpression: 'ObjectExpression',
ObjectPattern: 'ObjectPattern',
Program: 'Program',
Property: 'Property',
ReturnStatement: 'ReturnStatement',
SequenceExpression: 'SequenceExpression',
SwitchStatement: 'SwitchStatement',
SwitchCase: 'SwitchCase',
ThisExpression: 'ThisExpression',
ThrowStatement: 'ThrowStatement',
TryStatement: 'TryStatement',
UnaryExpression: 'UnaryExpression',
UpdateExpression: 'UpdateExpression',
VariableDeclaration: 'VariableDeclaration',
VariableDeclarator: 'VariableDeclarator',
WhileStatement: 'WhileStatement',
WithStatement: 'WithStatement',
YieldExpression: 'YieldExpression'
};
function ignoreJSHintError() {
}
isArray = Array.isArray;
if (!isArray) {
isArray = function isArray(array) {
return Object.prototype.toString.call(array) === '[object Array]';
};
}
function deepCopy(obj) {
var ret = {}, key, val;
for (key in obj) {
if (obj.hasOwnProperty(key)) {
val = obj[key];
if (typeof val === 'object' && val !== null) {
ret[key] = deepCopy(val);
} else {
ret[key] = val;
}
}
}
return ret;
}
function shallowCopy(obj) {
var ret = {}, key;
for (key in obj) {
if (obj.hasOwnProperty(key)) {
ret[key] = obj[key];
}
}
return ret;
}
ignoreJSHintError(shallowCopy);
function upperBound(array, func) {
var diff, len, i, current;
len = array.length;
i = 0;
while (len) {
diff = len >>> 1;
current = i + diff;
if (func(array[current])) {
len = diff;
} else {
i = current + 1;
len -= diff + 1;
}
}
return i;
}
function lowerBound(array, func) {
var diff, len, i, current;
len = array.length;
i = 0;
while (len) {
diff = len >>> 1;
current = i + diff;
if (func(array[current])) {
i = current + 1;
len -= diff + 1;
} else {
len = diff;
}
}
return i;
}
ignoreJSHintError(lowerBound);
VisitorKeys = {
AssignmentExpression: [
'left',
'right'
],
ArrayExpression: ['elements'],
ArrayPattern: ['elements'],
ArrowFunctionExpression: [
'params',
'defaults',
'rest',
'body'
],
BlockStatement: ['body'],
BinaryExpression: [
'left',
'right'
],
BreakStatement: ['label'],
CallExpression: [
'callee',
'arguments'
],
CatchClause: [
'param',
'body'
],
ClassBody: ['body'],
ClassDeclaration: [
'id',
'body',
'superClass'
],
ClassExpression: [
'id',
'body',
'superClass'
],
ConditionalExpression: [
'test',
'consequent',
'alternate'
],
ContinueStatement: ['label'],
DebuggerStatement: [],
DirectiveStatement: [],
DoWhileStatement: [
'body',
'test'
],
EmptyStatement: [],
ExpressionStatement: ['expression'],
ForStatement: [
'init',
'test',
'update',
'body'
],
ForInStatement: [
'left',
'right',
'body'
],
FunctionDeclaration: [
'id',
'params',
'defaults',
'rest',
'body'
],
FunctionExpression: [
'id',
'params',
'defaults',
'rest',
'body'
],
Identifier: [],
IfStatement: [
'test',
'consequent',
'alternate'
],
Literal: [],
LabeledStatement: [
'label',
'body'
],
LogicalExpression: [
'left',
'right'
],
MemberExpression: [
'object',
'property'
],
MethodDefinition: [
'key',
'value'
],
NewExpression: [
'callee',
'arguments'
],
ObjectExpression: ['properties'],
ObjectPattern: ['properties'],
Program: ['body'],
Property: [
'key',
'value'
],
ReturnStatement: ['argument'],
SequenceExpression: ['expressions'],
SwitchStatement: [
'discriminant',
'cases'
],
SwitchCase: [
'test',
'consequent'
],
ThisExpression: [],
ThrowStatement: ['argument'],
TryStatement: [
'block',
'handlers',
'handler',
'guardedHandlers',
'finalizer'
],
UnaryExpression: ['argument'],
UpdateExpression: ['argument'],
VariableDeclaration: ['declarations'],
VariableDeclarator: [
'id',
'init'
],
WhileStatement: [
'test',
'body'
],
WithStatement: [
'object',
'body'
],
YieldExpression: ['argument']
};
BREAK = {};
SKIP = {};
VisitorOption = {
Break: BREAK,
Skip: SKIP
};
function Reference(parent, key) {
this.parent = parent;
this.key = key;
}
Reference.prototype.replace = function replace(node) {
this.parent[this.key] = node;
};
function Element(node, path, wrap, ref) {
this.node = node;
this.path = path;
this.wrap = wrap;
this.ref = ref;
}
function Controller() {
}
Controller.prototype.path = function path() {
var i, iz, j, jz, result, element;
function addToPath(result, path) {
if (isArray(path)) {
for (j = 0, jz = path.length; j < jz; ++j) {
result.push(path[j]);
}
} else {
result.push(path);
}
}
if (!this.__current.path) {
return null;
}
result = [];
for (i = 2, iz = this.__leavelist.length; i < iz; ++i) {
element = this.__leavelist[i];
addToPath(result, element.path);
}
addToPath(result, this.__current.path);
return result;
};
Controller.prototype.parents = function parents() {
var i, iz, result;
result = [];
for (i = 1, iz = this.__leavelist.length; i < iz; ++i) {
result.push(this.__leavelist[i].node);
}
return result;
};
Controller.prototype.current = function current() {
return this.__current.node;
};
Controller.prototype.__execute = function __execute(callback, element) {
var previous, result;
result = undefined;
previous = this.__current;
this.__current = element;
this.__state = null;
if (callback) {
result = callback.call(this, element.node, this.__leavelist[this.__leavelist.length - 1].node);
}
this.__current = previous;
return result;
};
Controller.prototype.notify = function notify(flag) {
this.__state = flag;
};
Controller.prototype.skip = function () {
this.notify(SKIP);
};
Controller.prototype['break'] = function () {
this.notify(BREAK);
};
Controller.prototype.__initialize = function (root, visitor) {
this.visitor = visitor;
this.root = root;
this.__worklist = [];
this.__leavelist = [];
this.__current = null;
this.__state = null;
};
Controller.prototype.traverse = function traverse(root, visitor) {
var worklist, leavelist, element, node, nodeType, ret, key, current, current2, candidates, candidate, sentinel;
this.__initialize(root, visitor);
sentinel = {};
worklist = this.__worklist;
leavelist = this.__leavelist;
worklist.push(new Element(root, null, null, null));
leavelist.push(new Element(null, null, null, null));
while (worklist.length) {
element = worklist.pop();
if (element === sentinel) {
element = leavelist.pop();
ret = this.__execute(visitor.leave, element);
if (this.__state === BREAK || ret === BREAK) {
return;
}
continue;
}
if (element.node) {
ret = this.__execute(visitor.enter, element);
if (this.__state === BREAK || ret === BREAK) {
return;
}
worklist.push(sentinel);
leavelist.push(element);
if (this.__state === SKIP || ret === SKIP) {
continue;
}
node = element.node;
nodeType = element.wrap || node.type;
candidates = VisitorKeys[nodeType];
current = candidates.length;
while ((current -= 1) >= 0) {
key = candidates[current];
candidate = node[key];
if (!candidate) {
continue;
}
if (!isArray(candidate)) {
worklist.push(new Element(candidate, key, null, null));
continue;
}
current2 = candidate.length;
while ((current2 -= 1) >= 0) {
if (!candidate[current2]) {
continue;
}
if ((nodeType === Syntax.ObjectExpression || nodeType === Syntax.ObjectPattern) && 'properties' === candidates[current]) {
element = new Element(candidate[current2], [
key,
current2
], 'Property', null);
} else {
element = new Element(candidate[current2], [
key,
current2
], null, null);
}
worklist.push(element);
}
}
}
}
};
Controller.prototype.replace = function replace(root, visitor) {
var worklist, leavelist, node, nodeType, target, element, current, current2, candidates, candidate, sentinel, outer, key;
this.__initialize(root, visitor);
sentinel = {};
worklist = this.__worklist;
leavelist = this.__leavelist;
outer = { root: root };
element = new Element(root, null, null, new Reference(outer, 'root'));
worklist.push(element);
leavelist.push(element);
while (worklist.length) {
element = worklist.pop();
if (element === sentinel) {
element = leavelist.pop();
target = this.__execute(visitor.leave, element);
if (target !== undefined && target !== BREAK && target !== SKIP) {
element.ref.replace(target);
}
if (this.__state === BREAK || target === BREAK) {
return outer.root;
}
continue;
}
target = this.__execute(visitor.enter, element);
if (target !== undefined && target !== BREAK && target !== SKIP) {
element.ref.replace(target);
element.node = target;
}
if (this.__state === BREAK || target === BREAK) {
return outer.root;
}
node = element.node;
if (!node) {
continue;
}
worklist.push(sentinel);
leavelist.push(element);
if (this.__state === SKIP || target === SKIP) {
continue;
}
nodeType = element.wrap || node.type;
candidates = VisitorKeys[nodeType];
current = candidates.length;
while ((current -= 1) >= 0) {
key = candidates[current];
candidate = node[key];
if (!candidate) {
continue;
}
if (!isArray(candidate)) {
worklist.push(new Element(candidate, key, null, new Reference(node, key)));
continue;
}
current2 = candidate.length;
while ((current2 -= 1) >= 0) {
if (!candidate[current2]) {
continue;
}
if (nodeType === Syntax.ObjectExpression && 'properties' === candidates[current]) {
element = new Element(candidate[current2], [
key,
current2
], 'Property', new Reference(candidate, current2));
} else {
element = new Element(candidate[current2], [
key,
current2
], null, new Reference(candidate, current2));
}
worklist.push(element);
}
}
}
return outer.root;
};
function traverse(root, visitor) {
var controller = new Controller;
return controller.traverse(root, visitor);
}
function replace(root, visitor) {
var controller = new Controller;
return controller.replace(root, visitor);
}
function extendCommentRange(comment, tokens) {
var target;
target = upperBound(tokens, function search(token) {
return token.range[0] > comment.range[0];
});
comment.extendedRange = [
comment.range[0],
comment.range[1]
];
if (target !== tokens.length) {
comment.extendedRange[1] = tokens[target].range[0];
}
target -= 1;
if (target >= 0) {
comment.extendedRange[0] = tokens[target].range[1];
}
return comment;
}
function attachComments(tree, providedComments, tokens) {
var comments = [], comment, len, i, cursor;
if (!tree.range) {
throw new Error('attachComments needs range information');
}
if (!tokens.length) {
if (providedComments.length) {
for (i = 0, len = providedComments.length; i < len; i += 1) {
comment = deepCopy(providedComments[i]);
comment.extendedRange = [
0,
tree.range[0]
];
comments.push(comment);
}
tree.leadingComments = comments;
}
return tree;
}
for (i = 0, len = providedComments.length; i < len; i += 1) {
comments.push(extendCommentRange(deepCopy(providedComments[i]), tokens));
}
cursor = 0;
traverse(tree, {
enter: function (node) {
var comment;
while (cursor < comments.length) {
comment = comments[cursor];
if (comment.extendedRange[1] > node.range[0]) {
break;
}
if (comment.extendedRange[1] === node.range[0]) {
if (!node.leadingComments) {
node.leadingComments = [];
}
node.leadingComments.push(comment);
comments.splice(cursor, 1);
} else {
cursor += 1;
}
}
if (cursor === comments.length) {
return VisitorOption.Break;
}
if (comments[cursor].extendedRange[0] > node.range[1]) {
return VisitorOption.Skip;
}
}
});
cursor = 0;
traverse(tree, {
leave: function (node) {
var comment;
while (cursor < comments.length) {
comment = comments[cursor];
if (node.range[1] < comment.extendedRange[0]) {
break;
}
if (node.range[1] === comment.extendedRange[0]) {
if (!node.trailingComments) {
node.trailingComments = [];
}
node.trailingComments.push(comment);
comments.splice(cursor, 1);
} else {
cursor += 1;
}
}
if (cursor === comments.length) {
return VisitorOption.Break;
}
if (comments[cursor].extendedRange[0] > node.range[1]) {
return VisitorOption.Skip;
}
}
});
return tree;
}
exports.version = '1.3.3-dev';
exports.Syntax = Syntax;
exports.traverse = traverse;
exports.replace = replace;
exports.attachComments = attachComments;
exports.VisitorKeys = VisitorKeys;
exports.VisitorOption = VisitorOption;
exports.Controller = Controller;
}));
});
require('/tools/entry-point.js');
}.call(this, this));
================================================
FILE: editor/scripts/escope.js
================================================
/*
Copyright (C) 2012-2013 Yusuke Suzuki
Copyright (C) 2013 Alex Seville
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/**
* Escope (escope) is an ECMAScript
* scope analyzer extracted from the esmangle project.
*
* escope finds lexical scopes in a source program, i.e. areas of that
* program where different occurrences of the same identifier refer to the same
* variable. With each scope the contained variables are collected, and each
* identifier reference in code is linked to its corresponding variable (if
* possible).
*
* escope works on a syntax tree of the parsed source code which has
* to adhere to the
* Mozilla Parser API. E.g. esprima is a parser
* that produces such syntax trees.
*
* The main interface is the {@link analyze} function.
* @module
*/
/*jslint bitwise:true */
/*global exports:true, define:true, require:true*/
(function (factory, global) {
'use strict';
function namespace(str, obj) {
var i, iz, names, name;
names = str.split('.');
for (i = 0, iz = names.length; i < iz; ++i) {
name = names[i];
if (obj.hasOwnProperty(name)) {
obj = obj[name];
} else {
obj = (obj[name] = {});
}
}
return obj;
}
// Universal Module Definition (UMD) to support AMD, CommonJS/Node.js,
// and plain browser loading,
if (typeof define === 'function' && define.amd) {
define('escope', ['exports', 'estraverse'], function (exports, estraverse) {
factory(exports, global, estraverse);
});
} else if (typeof exports !== 'undefined') {
factory(exports, global, require('estraverse'));
} else {
factory(namespace('escope', global), global, global.estraverse);
}
}(function (exports, global, estraverse) {
'use strict';
var Syntax,
Map,
currentScope,
globalScope,
scopes,
options;
Syntax = estraverse.Syntax;
if (typeof global.Map !== 'undefined') {
// ES6 Map
Map = global.Map;
} else {
Map = function Map() {
this.__data = {};
};
Map.prototype.get = function MapGet(key) {
key = '$' + key;
if (this.__data.hasOwnProperty(key)) {
return this.__data[key];
}
return undefined;
};
Map.prototype.has = function MapHas(key) {
key = '$' + key;
return this.__data.hasOwnProperty(key);
};
Map.prototype.set = function MapSet(key, val) {
key = '$' + key;
this.__data[key] = val;
};
Map.prototype['delete'] = function MapDelete(key) {
key = '$' + key;
return delete this.__data[key];
};
}
function assert(cond, text) {
if (!cond) {
throw new Error(text);
}
}
function defaultOptions() {
return {
optimistic: false,
directive: false
};
}
function updateDeeply(target, override) {
var key, val;
function isHashObject(target) {
return typeof target === 'object' && target instanceof Object && !(target instanceof RegExp);
}
for (key in override) {
if (override.hasOwnProperty(key)) {
val = override[key];
if (isHashObject(val)) {
if (isHashObject(target[key])) {
updateDeeply(target[key], val);
} else {
target[key] = updateDeeply({}, val);
}
} else {
target[key] = val;
}
}
}
return target;
}
/**
* A Reference represents a single occurrence of an identifier in code.
* @class Reference
*/
function Reference(ident, scope, flag, writeExpr, maybeImplicitGlobal) {
/**
* Identifier syntax node.
* @member {esprima#Identifier} Reference#identifier
*/
this.identifier = ident;
/**
* Reference to the enclosing Scope.
* @member {Scope} Reference#from
*/
this.from = scope;
/**
* Whether the reference comes from a dynamic scope (such as 'eval',
* 'with', etc.), and may be trapped by dynamic scopes.
* @member {boolean} Reference#tainted
*/
this.tainted = false;
/**
* The variable this reference is resolved with.
* @member {Variable} Reference#resolved
*/
this.resolved = null;
/**
* The read-write mode of the reference. (Value is one of {@link
* Reference.READ}, {@link Reference.RW}, {@link Reference.WRITE}).
* @member {number} Reference#flag
* @private
*/
this.flag = flag;
if (this.isWrite()) {
/**
* If reference is writeable, this is the tree being written to it.
* @member {esprima#Node} Reference#writeExpr
*/
this.writeExpr = writeExpr;
}
/**
* Whether the Reference might refer to a global variable.
* @member {boolean} Reference#__maybeImplicitGlobal
* @private
*/
this.__maybeImplicitGlobal = maybeImplicitGlobal;
}
/**
* @constant Reference.READ
* @private
*/
Reference.READ = 0x1;
/**
* @constant Reference.WRITE
* @private
*/
Reference.WRITE = 0x2;
/**
* @constant Reference.RW
* @private
*/
Reference.RW = 0x3;
/**
* Whether the reference is static.
* @method Reference#isStatic
* @return {boolean}
*/
Reference.prototype.isStatic = function isStatic() {
return !this.tainted && this.resolved && this.resolved.scope.isStatic();
};
/**
* Whether the reference is writeable.
* @method Reference#isWrite
* @return {boolean}
*/
Reference.prototype.isWrite = function isWrite() {
return this.flag & Reference.WRITE;
};
/**
* Whether the reference is readable.
* @method Reference#isRead
* @return {boolean}
*/
Reference.prototype.isRead = function isRead() {
return this.flag & Reference.READ;
};
/**
* Whether the reference is read-only.
* @method Reference#isReadOnly
* @return {boolean}
*/
Reference.prototype.isReadOnly = function isReadOnly() {
return this.flag === Reference.READ;
};
/**
* Whether the reference is write-only.
* @method Reference#isWriteOnly
* @return {boolean}
*/
Reference.prototype.isWriteOnly = function isWriteOnly() {
return this.flag === Reference.WRITE;
};
/**
* Whether the reference is read-write.
* @method Reference#isReadWrite
* @return {boolean}
*/
Reference.prototype.isReadWrite = function isReadWrite() {
return this.flag === Reference.RW;
};
/**
* A Variable represents a locally scoped identifier. These include arguments to
* functions.
* @class Variable
*/
function Variable(name, scope) {
/**
* The variable name, as given in the source code.
* @member {String} Variable#name
*/
this.name = name;
/**
* List of defining occurrences of this variable (like in 'var ...'
* statements or as parameter), as AST nodes.
* @member {esprima.Identifier[]} Variable#identifiers
*/
this.identifiers = [];
/**
* List of {@link Reference|references} of this variable (excluding parameter entries)
* in its defining scope and all nested scopes. For defining
* occurrences only see {@link Variable#defs}.
* @member {Reference[]} Variable#references
*/
this.references = [];
/**
* List of defining occurrences of this variable (like in 'var ...'
* statements or as parameter), as custom objects.
* @typedef {Object} DefEntry
* @property {String} DefEntry.type - the type of the occurrence (e.g.
* "Parameter", "Variable", ...)
* @property {esprima.Identifier} DefEntry.name - the identifier AST node of the occurrence
* @property {esprima.Node} DefEntry.node - the enclosing node of the
* identifier
* @property {esprima.Node} [DefEntry.parent] - the enclosing statement
* node of the identifier
* @member {DefEntry[]} Variable#defs
*/
this.defs = [];
this.tainted = false;
/**
* Whether this is a stack variable.
* @member {boolean} Variable#stack
*/
this.stack = true;
/**
* Reference to the enclosing Scope.
* @member {Scope} Variable#scope
*/
this.scope = scope;
}
Variable.CatchClause = 'CatchClause';
Variable.Parameter = 'Parameter';
Variable.FunctionName = 'FunctionName';
Variable.Variable = 'Variable';
Variable.ImplicitGlobalVariable = 'ImplicitGlobalVariable';
function isStrictScope(scope, block) {
var body, i, iz, stmt, expr;
// When upper scope is exists and strict, inner scope is also strict.
if (scope.upper && scope.upper.isStrict) {
return true;
}
if (scope.type === 'function') {
body = block.body;
} else if (scope.type === 'global') {
body = block;
} else {
return false;
}
if (options.directive) {
for (i = 0, iz = body.body.length; i < iz; ++i) {
stmt = body.body[i];
if (stmt.type !== 'DirectiveStatement') {
break;
}
if (stmt.raw === '"use strict"' || stmt.raw === '\'use strict\'') {
return true;
}
}
} else {
for (i = 0, iz = body.body.length; i < iz; ++i) {
stmt = body.body[i];
if (stmt.type !== Syntax.ExpressionStatement) {
break;
}
expr = stmt.expression;
if (expr.type !== Syntax.Literal || typeof expr.value !== 'string') {
break;
}
if (expr.raw != null) {
if (expr.raw === '"use strict"' || expr.raw === '\'use strict\'') {
return true;
}
} else {
if (expr.value === 'use strict') {
return true;
}
}
}
}
return false;
}
/**
* @class Scope
*/
function Scope(block, opt) {
var variable, body;
/**
* One of 'catch', 'with', 'function' or 'global'.
* @member {String} Scope#type
*/
this.type =
(block.type === Syntax.CatchClause) ? 'catch' :
(block.type === Syntax.WithStatement) ? 'with' :
(block.type === Syntax.Program) ? 'global' : 'function';
/**
* The scoped {@link Variable}s of this scope, as { Variable.name
* : Variable }.
* @member {Map} Scope#set
*/
this.set = new Map();
/**
* The tainted variables of this scope, as { Variable.name :
* boolean }.
* @member {Map} Scope#taints */
this.taints = new Map();
/**
* Generally, through the lexical scoping of JS you can always know
* which variable an identifier in the source code refers to. There are
* a few exceptions to this rule. With 'global' and 'with' scopes you
* can only decide at runtime which variable a reference refers to.
* Moreover, if 'eval()' is used in a scope, it might introduce new
* bindings in this or its prarent scopes.
* All those scopes are considered 'dynamic'.
* @member {boolean} Scope#dynamic
*/
this.dynamic = this.type === 'global' || this.type === 'with';
/**
* A reference to the scope-defining syntax node.
* @member {esprima.Node} Scope#block
*/
this.block = block;
/**
* The {@link Reference|references} that are not resolved with this scope.
* @member {Reference[]} Scope#through
*/
this.through = [];
/**
* The scoped {@link Variable}s of this scope. In the case of a
* 'function' scope this includes the automatic argument arguments as
* its first element, as well as all further formal arguments.
* @member {Variable[]} Scope#variables
*/
this.variables = [];
/**
* Any variable {@link Reference|reference} found in this scope. This
* includes occurrences of local variables as well as variables from
* parent scopes (including the global scope). For local variables
* this also includes defining occurrences (like in a 'var' statement).
* In a 'function' scope this does not include the occurrences of the
* formal parameter in the parameter list.
* @member {Reference[]} Scope#references
*/
this.references = [];
/**
* List of {@link Reference}s that are left to be resolved (i.e. which
* need to be linked to the variable they refer to). Used internally to
* resolve bindings during scope analysis. On a finalized scope
* analysis, all sopes have left value null.
* @member {Reference[]} Scope#left
*/
this.left = [];
/**
* For 'global' and 'function' scopes, this is a self-reference. For
* other scope types this is the variableScope value of the
* parent scope.
* @member {Scope} Scope#variableScope
*/
this.variableScope =
(this.type === 'global' || this.type === 'function') ? this : currentScope.variableScope;
/**
* Whether this scope is created by a FunctionExpression.
* @member {boolean} Scope#functionExpressionScope
*/
this.functionExpressionScope = false;
/**
* Whether this is a scope that contains an 'eval()' invocation.
* @member {boolean} Scope#directCallToEvalScope
*/
this.directCallToEvalScope = false;
/**
* @member {boolean} Scope#thisFound
*/
this.thisFound = false;
body = this.type === 'function' ? block.body : block;
if (opt.naming) {
this.__define(block.id, {
type: Variable.FunctionName,
name: block.id,
node: block
});
this.functionExpressionScope = true;
} else {
if (this.type === 'function') {
variable = new Variable('arguments', this);
this.taints.set('arguments', true);
this.set.set('arguments', variable);
this.variables.push(variable);
}
if (block.type === Syntax.FunctionExpression && block.id) {
new Scope(block, { naming: true });
}
}
/**
* Reference to the parent {@link Scope|scope}.
* @member {Scope} Scope#upper
*/
this.upper = currentScope;
/**
* Whether 'use strict' is in effect in this scope.
* @member {boolean} Scope#isStrict
*/
this.isStrict = isStrictScope(this, block);
/**
* List of nested {@link Scope}s.
* @member {Scope[]} Scope#childScopes
*/
this.childScopes = [];
if (currentScope) {
currentScope.childScopes.push(this);
}
// RAII
currentScope = this;
if (this.type === 'global') {
globalScope = this;
globalScope.implicit = {
set: new Map(),
variables: []
};
}
scopes.push(this);
}
Scope.prototype.__close = function __close() {
var i, iz, ref, current, node, implicit;
// Because if this is global environment, upper is null
if (!this.dynamic || options.optimistic) {
// static resolve
for (i = 0, iz = this.left.length; i < iz; ++i) {
ref = this.left[i];
if (!this.__resolve(ref)) {
this.__delegateToUpperScope(ref);
}
}
} else {
// this is "global" / "with" / "function with eval" environment
if (this.type === 'with') {
for (i = 0, iz = this.left.length; i < iz; ++i) {
ref = this.left[i];
ref.tainted = true;
this.__delegateToUpperScope(ref);
}
} else {
for (i = 0, iz = this.left.length; i < iz; ++i) {
// notify all names are through to global
ref = this.left[i];
current = this;
do {
current.through.push(ref);
current = current.upper;
} while (current);
}
}
}
if (this.type === 'global') {
implicit = [];
for (i = 0, iz = this.left.length; i < iz; ++i) {
ref = this.left[i];
if (ref.__maybeImplicitGlobal && !this.set.has(ref.identifier.name)) {
implicit.push(ref.__maybeImplicitGlobal);
}
}
// create an implicit global variable from assignment expression
for (i = 0, iz = implicit.length; i < iz; ++i) {
node = implicit[i];
this.__defineImplicit(node.left, {
type: Variable.ImplicitGlobalVariable,
name: node.left,
node: node
});
}
}
this.left = null;
currentScope = this.upper;
};
Scope.prototype.__resolve = function __resolve(ref) {
var variable, name;
name = ref.identifier.name;
if (this.set.has(name)) {
variable = this.set.get(name);
variable.references.push(ref);
variable.stack = variable.stack && ref.from.variableScope === this.variableScope;
if (ref.tainted) {
variable.tainted = true;
this.taints.set(variable.name, true);
}
ref.resolved = variable;
return true;
}
return false;
};
Scope.prototype.__delegateToUpperScope = function __delegateToUpperScope(ref) {
if (this.upper) {
this.upper.left.push(ref);
}
this.through.push(ref);
};
Scope.prototype.__defineImplicit = function __defineImplicit(node, info) {
var name, variable;
if (node && node.type === Syntax.Identifier) {
name = node.name;
if (!this.implicit.set.has(name)) {
variable = new Variable(name, this);
variable.identifiers.push(node);
variable.defs.push(info);
this.implicit.set.set(name, variable);
this.implicit.variables.push(variable);
} else {
variable = this.implicit.set.get(name);
variable.identifiers.push(node);
variable.defs.push(info);
}
}
};
Scope.prototype.__define = function __define(node, info) {
var name, variable;
if (node && node.type === Syntax.Identifier) {
name = node.name;
if (!this.set.has(name)) {
variable = new Variable(name, this);
variable.identifiers.push(node);
variable.defs.push(info);
this.set.set(name, variable);
this.variables.push(variable);
} else {
variable = this.set.get(name);
variable.identifiers.push(node);
variable.defs.push(info);
}
}
};
Scope.prototype.__referencing = function __referencing(node, assign, writeExpr, maybeImplicitGlobal) {
var ref;
// because Array element may be null
if (node && node.type === Syntax.Identifier) {
ref = new Reference(node, this, assign || Reference.READ, writeExpr, maybeImplicitGlobal);
this.references.push(ref);
this.left.push(ref);
}
};
Scope.prototype.__detectEval = function __detectEval() {
var current;
current = this;
this.directCallToEvalScope = true;
do {
current.dynamic = true;
current = current.upper;
} while (current);
};
Scope.prototype.__detectThis = function __detectThis() {
this.thisFound = true;
};
Scope.prototype.__isClosed = function isClosed() {
return this.left === null;
};
// API Scope#resolve(name)
// returns resolved reference
Scope.prototype.resolve = function resolve(ident) {
var ref, i, iz;
assert(this.__isClosed(), 'scope should be closed');
assert(ident.type === Syntax.Identifier, 'target should be identifier');
for (i = 0, iz = this.references.length; i < iz; ++i) {
ref = this.references[i];
if (ref.identifier === ident) {
return ref;
}
}
return null;
};
// API Scope#isStatic
// returns this scope is static
Scope.prototype.isStatic = function isStatic() {
return !this.dynamic;
};
// API Scope#isArgumentsMaterialized
// return this scope has materialized arguments
Scope.prototype.isArgumentsMaterialized = function isArgumentsMaterialized() {
// TODO(Constellation)
// We can more aggressive on this condition like this.
//
// function t() {
// // arguments of t is always hidden.
// function arguments() {
// }
// }
var variable;
// This is not function scope
if (this.type !== 'function') {
return true;
}
if (!this.isStatic()) {
return true;
}
variable = this.set.get('arguments');
assert(variable, 'always have arguments variable');
return variable.tainted || variable.references.length !== 0;
};
// API Scope#isThisMaterialized
// return this scope has materialized `this` reference
Scope.prototype.isThisMaterialized = function isThisMaterialized() {
// This is not function scope
if (this.type !== 'function') {
return true;
}
if (!this.isStatic()) {
return true;
}
return this.thisFound;
};
Scope.mangledName = '__$escope$__';
Scope.prototype.attach = function attach() {
if (!this.functionExpressionScope) {
this.block[Scope.mangledName] = this;
}
};
Scope.prototype.detach = function detach() {
if (!this.functionExpressionScope) {
delete this.block[Scope.mangledName];
}
};
Scope.prototype.isUsedName = function (name) {
if (this.set.has(name)) {
return true;
}
for (var i = 0, iz = this.through.length; i < iz; ++i) {
if (this.through[i].identifier.name === name) {
return true;
}
}
return false;
};
/**
* @class ScopeManager
*/
function ScopeManager(scopes) {
this.scopes = scopes;
this.attached = false;
}
// Returns appropliate scope for this node
ScopeManager.prototype.__get = function __get(node) {
var i, iz, scope;
if (this.attached) {
return node[Scope.mangledName] || null;
}
if (Scope.isScopeRequired(node)) {
for (i = 0, iz = this.scopes.length; i < iz; ++i) {
scope = this.scopes[i];
if (!scope.functionExpressionScope) {
if (scope.block === node) {
return scope;
}
}
}
}
return null;
};
ScopeManager.prototype.acquire = function acquire(node) {
return this.__get(node);
};
ScopeManager.prototype.release = function release(node) {
var scope = this.__get(node);
if (scope) {
scope = scope.upper;
while (scope) {
if (!scope.functionExpressionScope) {
return scope;
}
scope = scope.upper;
}
}
return null;
};
ScopeManager.prototype.attach = function attach() {
var i, iz;
for (i = 0, iz = this.scopes.length; i < iz; ++i) {
this.scopes[i].attach();
}
this.attached = true;
};
ScopeManager.prototype.detach = function detach() {
var i, iz;
for (i = 0, iz = this.scopes.length; i < iz; ++i) {
this.scopes[i].detach();
}
this.attached = false;
};
Scope.isScopeRequired = function isScopeRequired(node) {
return Scope.isVariableScopeRequired(node) || node.type === Syntax.WithStatement || node.type === Syntax.CatchClause;
};
Scope.isVariableScopeRequired = function isVariableScopeRequired(node) {
return node.type === Syntax.Program || node.type === Syntax.FunctionExpression || node.type === Syntax.FunctionDeclaration;
};
/**
* Main interface function. Takes an Esprima syntax tree and returns the
* analyzed scopes.
* @function analyze
* @param {esprima.Tree} tree
* @param {Object} providedOptions - Options that tailor the scope analysis
* @param {boolean} [providedOptions.optimistic=false] - the optimistic flag
* @param {boolean} [providedOptions.directive=false]- the directive flag
* @param {boolean} [providedOptions.ignoreEval=false]- whether to check 'eval()' calls
* @return {ScopeManager}
*/
function analyze(tree, providedOptions) {
var resultScopes;
options = updateDeeply(defaultOptions(), providedOptions);
resultScopes = scopes = [];
currentScope = null;
globalScope = null;
// attach scope and collect / resolve names
estraverse.traverse(tree, {
enter: function enter(node) {
var i, iz, decl;
if (Scope.isScopeRequired(node)) {
new Scope(node, {});
}
switch (node.type) {
case Syntax.AssignmentExpression:
if (node.operator === '=') {
currentScope.__referencing(node.left, Reference.WRITE, node.right, (!currentScope.isStrict && node.left.name != null) && node);
} else {
currentScope.__referencing(node.left, Reference.RW, node.right);
}
currentScope.__referencing(node.right);
break;
case Syntax.ArrayExpression:
for (i = 0, iz = node.elements.length; i < iz; ++i) {
currentScope.__referencing(node.elements[i]);
}
break;
case Syntax.BlockStatement:
break;
case Syntax.BinaryExpression:
currentScope.__referencing(node.left);
currentScope.__referencing(node.right);
break;
case Syntax.BreakStatement:
break;
case Syntax.CallExpression:
currentScope.__referencing(node.callee);
for (i = 0, iz = node['arguments'].length; i < iz; ++i) {
currentScope.__referencing(node['arguments'][i]);
}
// check this is direct call to eval
if (!options.ignoreEval && node.callee.type === Syntax.Identifier && node.callee.name === 'eval') {
currentScope.variableScope.__detectEval();
}
break;
case Syntax.CatchClause:
currentScope.__define(node.param, {
type: Variable.CatchClause,
name: node.param,
node: node
});
break;
case Syntax.ConditionalExpression:
currentScope.__referencing(node.test);
currentScope.__referencing(node.consequent);
currentScope.__referencing(node.alternate);
break;
case Syntax.ContinueStatement:
break;
case Syntax.DirectiveStatement:
break;
case Syntax.DoWhileStatement:
currentScope.__referencing(node.test);
break;
case Syntax.DebuggerStatement:
break;
case Syntax.EmptyStatement:
break;
case Syntax.ExpressionStatement:
currentScope.__referencing(node.expression);
break;
case Syntax.ForStatement:
currentScope.__referencing(node.init);
currentScope.__referencing(node.test);
currentScope.__referencing(node.update);
break;
case Syntax.ForInStatement:
if (node.left.type === Syntax.VariableDeclaration) {
currentScope.__referencing(node.left.declarations[0].id, Reference.WRITE, null, false);
} else {
currentScope.__referencing(node.left, Reference.WRITE, null, (!currentScope.isStrict && node.left.name != null) && node);
}
currentScope.__referencing(node.right);
break;
case Syntax.FunctionDeclaration:
// FunctionDeclaration name is defined in upper scope
currentScope.upper.__define(node.id, {
type: Variable.FunctionName,
name: node.id,
node: node
});
for (i = 0, iz = node.params.length; i < iz; ++i) {
currentScope.__define(node.params[i], {
type: Variable.Parameter,
name: node.params[i],
node: node,
index: i
});
}
break;
case Syntax.FunctionExpression:
// id is defined in upper scope
for (i = 0, iz = node.params.length; i < iz; ++i) {
currentScope.__define(node.params[i], {
type: Variable.Parameter,
name: node.params[i],
node: node,
index: i
});
}
break;
case Syntax.Identifier:
break;
case Syntax.IfStatement:
currentScope.__referencing(node.test);
break;
case Syntax.Literal:
break;
case Syntax.LabeledStatement:
break;
case Syntax.LogicalExpression:
currentScope.__referencing(node.left);
currentScope.__referencing(node.right);
break;
case Syntax.MemberExpression:
currentScope.__referencing(node.object);
if (node.computed) {
currentScope.__referencing(node.property);
}
break;
case Syntax.NewExpression:
currentScope.__referencing(node.callee);
for (i = 0, iz = node['arguments'].length; i < iz; ++i) {
currentScope.__referencing(node['arguments'][i]);
}
break;
case Syntax.ObjectExpression:
break;
case Syntax.Program:
break;
case Syntax.Property:
currentScope.__referencing(node.value);
break;
case Syntax.ReturnStatement:
currentScope.__referencing(node.argument);
break;
case Syntax.SequenceExpression:
for (i = 0, iz = node.expressions.length; i < iz; ++i) {
currentScope.__referencing(node.expressions[i]);
}
break;
case Syntax.SwitchStatement:
currentScope.__referencing(node.discriminant);
break;
case Syntax.SwitchCase:
currentScope.__referencing(node.test);
break;
case Syntax.ThisExpression:
currentScope.variableScope.__detectThis();
break;
case Syntax.ThrowStatement:
currentScope.__referencing(node.argument);
break;
case Syntax.TryStatement:
break;
case Syntax.UnaryExpression:
currentScope.__referencing(node.argument);
break;
case Syntax.UpdateExpression:
currentScope.__referencing(node.argument, Reference.RW, null);
break;
case Syntax.VariableDeclaration:
for (i = 0, iz = node.declarations.length; i < iz; ++i) {
decl = node.declarations[i];
currentScope.variableScope.__define(decl.id, {
type: Variable.Variable,
name: decl.id,
node: decl,
index: i,
parent: node
});
if (decl.init) {
// initializer is found
currentScope.__referencing(decl.id, Reference.WRITE, decl.init, false);
currentScope.__referencing(decl.init);
}
}
break;
case Syntax.VariableDeclarator:
break;
case Syntax.WhileStatement:
currentScope.__referencing(node.test);
break;
case Syntax.WithStatement:
// WithStatement object is referenced at upper scope
currentScope.upper.__referencing(node.object);
break;
}
},
leave: function leave(node) {
while (currentScope && node === currentScope.block) {
currentScope.__close();
}
}
});
assert(currentScope === null);
globalScope = null;
scopes = null;
options = null;
return new ScopeManager(resultScopes);
}
/** @name module:escope.version */
exports.version = '1.0.1';
/** @name module:escope.Reference */
exports.Reference = Reference;
/** @name module:escope.Variable */
exports.Variable = Variable;
/** @name module:escope.Scope */
exports.Scope = Scope;
/** @name module:escope.ScopeManager */
exports.ScopeManager = ScopeManager;
/** @name module:escope.analyze */
exports.analyze = analyze;
}, this));
/* vim: set sw=4 ts=4 et tw=80 : */
================================================
FILE: editor/scripts/estraverse.js
================================================
/*
Copyright (C) 2012-2013 Yusuke Suzuki
Copyright (C) 2012 Ariya Hidayat
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*jslint vars:false, bitwise:true*/
/*jshint indent:4*/
/*global exports:true, define:true*/
(function (root, factory) {
'use strict';
// Universal Module Definition (UMD) to support AMD, CommonJS/Node.js,
// and plain browser loading,
if (typeof define === 'function' && define.amd) {
define(['exports'], factory);
} else if (typeof exports !== 'undefined') {
factory(exports);
} else {
factory((root.estraverse = {}));
}
}(this, function (exports) {
'use strict';
var Syntax,
isArray,
VisitorOption,
VisitorKeys,
BREAK,
SKIP;
Syntax = {
AssignmentExpression: 'AssignmentExpression',
ArrayExpression: 'ArrayExpression',
ArrayPattern: 'ArrayPattern',
ArrowFunctionExpression: 'ArrowFunctionExpression',
BlockStatement: 'BlockStatement',
BinaryExpression: 'BinaryExpression',
BreakStatement: 'BreakStatement',
CallExpression: 'CallExpression',
CatchClause: 'CatchClause',
ClassBody: 'ClassBody',
ClassDeclaration: 'ClassDeclaration',
ClassExpression: 'ClassExpression',
ConditionalExpression: 'ConditionalExpression',
ContinueStatement: 'ContinueStatement',
DebuggerStatement: 'DebuggerStatement',
DirectiveStatement: 'DirectiveStatement',
DoWhileStatement: 'DoWhileStatement',
EmptyStatement: 'EmptyStatement',
ExpressionStatement: 'ExpressionStatement',
ForStatement: 'ForStatement',
ForInStatement: 'ForInStatement',
FunctionDeclaration: 'FunctionDeclaration',
FunctionExpression: 'FunctionExpression',
Identifier: 'Identifier',
IfStatement: 'IfStatement',
Literal: 'Literal',
LabeledStatement: 'LabeledStatement',
LogicalExpression: 'LogicalExpression',
MemberExpression: 'MemberExpression',
MethodDefinition: 'MethodDefinition',
NewExpression: 'NewExpression',
ObjectExpression: 'ObjectExpression',
ObjectPattern: 'ObjectPattern',
Program: 'Program',
Property: 'Property',
ReturnStatement: 'ReturnStatement',
SequenceExpression: 'SequenceExpression',
SwitchStatement: 'SwitchStatement',
SwitchCase: 'SwitchCase',
ThisExpression: 'ThisExpression',
ThrowStatement: 'ThrowStatement',
TryStatement: 'TryStatement',
UnaryExpression: 'UnaryExpression',
UpdateExpression: 'UpdateExpression',
VariableDeclaration: 'VariableDeclaration',
VariableDeclarator: 'VariableDeclarator',
WhileStatement: 'WhileStatement',
WithStatement: 'WithStatement',
YieldExpression: 'YieldExpression'
};
function ignoreJSHintError() { }
isArray = Array.isArray;
if (!isArray) {
isArray = function isArray(array) {
return Object.prototype.toString.call(array) === '[object Array]';
};
}
function deepCopy(obj) {
var ret = {}, key, val;
for (key in obj) {
if (obj.hasOwnProperty(key)) {
val = obj[key];
if (typeof val === 'object' && val !== null) {
ret[key] = deepCopy(val);
} else {
ret[key] = val;
}
}
}
return ret;
}
function shallowCopy(obj) {
var ret = {}, key;
for (key in obj) {
if (obj.hasOwnProperty(key)) {
ret[key] = obj[key];
}
}
return ret;
}
ignoreJSHintError(shallowCopy);
// based on LLVM libc++ upper_bound / lower_bound
// MIT License
function upperBound(array, func) {
var diff, len, i, current;
len = array.length;
i = 0;
while (len) {
diff = len >>> 1;
current = i + diff;
if (func(array[current])) {
len = diff;
} else {
i = current + 1;
len -= diff + 1;
}
}
return i;
}
function lowerBound(array, func) {
var diff, len, i, current;
len = array.length;
i = 0;
while (len) {
diff = len >>> 1;
current = i + diff;
if (func(array[current])) {
i = current + 1;
len -= diff + 1;
} else {
len = diff;
}
}
return i;
}
ignoreJSHintError(lowerBound);
VisitorKeys = {
AssignmentExpression: ['left', 'right'],
ArrayExpression: ['elements'],
ArrayPattern: ['elements'],
ArrowFunctionExpression: ['params', 'defaults', 'rest', 'body'],
BlockStatement: ['body'],
BinaryExpression: ['left', 'right'],
BreakStatement: ['label'],
CallExpression: ['callee', 'arguments'],
CatchClause: ['param', 'body'],
ClassBody: ['body'],
ClassDeclaration: ['id', 'body', 'superClass'],
ClassExpression: ['id', 'body', 'superClass'],
ConditionalExpression: ['test', 'consequent', 'alternate'],
ContinueStatement: ['label'],
DebuggerStatement: [],
DirectiveStatement: [],
DoWhileStatement: ['body', 'test'],
EmptyStatement: [],
ExpressionStatement: ['expression'],
ForStatement: ['init', 'test', 'update', 'body'],
ForInStatement: ['left', 'right', 'body'],
FunctionDeclaration: ['id', 'params', 'defaults', 'rest', 'body'],
FunctionExpression: ['id', 'params', 'defaults', 'rest', 'body'],
Identifier: [],
IfStatement: ['test', 'consequent', 'alternate'],
Literal: [],
LabeledStatement: ['label', 'body'],
LogicalExpression: ['left', 'right'],
MemberExpression: ['object', 'property'],
MethodDefinition: ['key', 'value'],
NewExpression: ['callee', 'arguments'],
ObjectExpression: ['properties'],
ObjectPattern: ['properties'],
Program: ['body'],
Property: ['key', 'value'],
ReturnStatement: ['argument'],
SequenceExpression: ['expressions'],
SwitchStatement: ['discriminant', 'cases'],
SwitchCase: ['test', 'consequent'],
ThisExpression: [],
ThrowStatement: ['argument'],
TryStatement: ['block', 'handlers', 'handler', 'guardedHandlers', 'finalizer'],
UnaryExpression: ['argument'],
UpdateExpression: ['argument'],
VariableDeclaration: ['declarations'],
VariableDeclarator: ['id', 'init'],
WhileStatement: ['test', 'body'],
WithStatement: ['object', 'body'],
YieldExpression: ['argument']
};
// unique id
BREAK = {};
SKIP = {};
VisitorOption = {
Break: BREAK,
Skip: SKIP
};
function Reference(parent, key) {
this.parent = parent;
this.key = key;
}
Reference.prototype.replace = function replace(node) {
this.parent[this.key] = node;
};
function Element(node, path, wrap, ref) {
this.node = node;
this.path = path;
this.wrap = wrap;
this.ref = ref;
}
function Controller() { }
// API:
// return property path array from root to current node
Controller.prototype.path = function path() {
var i, iz, j, jz, result, element;
function addToPath(result, path) {
if (isArray(path)) {
for (j = 0, jz = path.length; j < jz; ++j) {
result.push(path[j]);
}
} else {
result.push(path);
}
}
// root node
if (!this.__current.path) {
return null;
}
// first node is sentinel, second node is root element
result = [];
for (i = 2, iz = this.__leavelist.length; i < iz; ++i) {
element = this.__leavelist[i];
addToPath(result, element.path);
}
addToPath(result, this.__current.path);
return result;
};
// API:
// return array of parent elements
Controller.prototype.parents = function parents() {
var i, iz, result;
// first node is sentinel
result = [];
for (i = 1, iz = this.__leavelist.length; i < iz; ++i) {
result.push(this.__leavelist[i].node);
}
return result;
};
// API:
// return current node
Controller.prototype.current = function current() {
return this.__current.node;
};
Controller.prototype.__execute = function __execute(callback, element) {
var previous, result;
result = undefined;
previous = this.__current;
this.__current = element;
this.__state = null;
if (callback) {
result = callback.call(this, element.node, this.__leavelist[this.__leavelist.length - 1].node);
}
this.__current = previous;
return result;
};
// API:
// notify control skip / break
Controller.prototype.notify = function notify(flag) {
this.__state = flag;
};
// API:
// skip child nodes of current node
Controller.prototype.skip = function () {
this.notify(SKIP);
};
// API:
// break traversals
Controller.prototype['break'] = function () {
this.notify(BREAK);
};
Controller.prototype.__initialize = function(root, visitor) {
this.visitor = visitor;
this.root = root;
this.__worklist = [];
this.__leavelist = [];
this.__current = null;
this.__state = null;
};
Controller.prototype.traverse = function traverse(root, visitor) {
var worklist,
leavelist,
element,
node,
nodeType,
ret,
key,
current,
current2,
candidates,
candidate,
sentinel;
this.__initialize(root, visitor);
sentinel = {};
// reference
worklist = this.__worklist;
leavelist = this.__leavelist;
// initialize
worklist.push(new Element(root, null, null, null));
leavelist.push(new Element(null, null, null, null));
while (worklist.length) {
element = worklist.pop();
if (element === sentinel) {
element = leavelist.pop();
ret = this.__execute(visitor.leave, element);
if (this.__state === BREAK || ret === BREAK) {
return;
}
continue;
}
if (element.node) {
ret = this.__execute(visitor.enter, element);
if (this.__state === BREAK || ret === BREAK) {
return;
}
worklist.push(sentinel);
leavelist.push(element);
if (this.__state === SKIP || ret === SKIP) {
continue;
}
node = element.node;
nodeType = element.wrap || node.type;
candidates = VisitorKeys[nodeType];
current = candidates.length;
while ((current -= 1) >= 0) {
key = candidates[current];
candidate = node[key];
if (!candidate) {
continue;
}
if (!isArray(candidate)) {
worklist.push(new Element(candidate, key, null, null));
continue;
}
current2 = candidate.length;
while ((current2 -= 1) >= 0) {
if (!candidate[current2]) {
continue;
}
if ((nodeType === Syntax.ObjectExpression || nodeType === Syntax.ObjectPattern) && 'properties' === candidates[current]) {
element = new Element(candidate[current2], [key, current2], 'Property', null);
} else {
element = new Element(candidate[current2], [key, current2], null, null);
}
worklist.push(element);
}
}
}
}
};
Controller.prototype.replace = function replace(root, visitor) {
var worklist,
leavelist,
node,
nodeType,
target,
element,
current,
current2,
candidates,
candidate,
sentinel,
outer,
key;
this.__initialize(root, visitor);
sentinel = {};
// reference
worklist = this.__worklist;
leavelist = this.__leavelist;
// initialize
outer = {
root: root
};
element = new Element(root, null, null, new Reference(outer, 'root'));
worklist.push(element);
leavelist.push(element);
while (worklist.length) {
element = worklist.pop();
if (element === sentinel) {
element = leavelist.pop();
target = this.__execute(visitor.leave, element);
// node may be replaced with null,
// so distinguish between undefined and null in this place
if (target !== undefined && target !== BREAK && target !== SKIP) {
// replace
element.ref.replace(target);
}
if (this.__state === BREAK || target === BREAK) {
return outer.root;
}
continue;
}
target = this.__execute(visitor.enter, element);
// node may be replaced with null,
// so distinguish between undefined and null in this place
if (target !== undefined && target !== BREAK && target !== SKIP) {
// replace
element.ref.replace(target);
element.node = target;
}
if (this.__state === BREAK || target === BREAK) {
return outer.root;
}
// node may be null
node = element.node;
if (!node) {
continue;
}
worklist.push(sentinel);
leavelist.push(element);
if (this.__state === SKIP || target === SKIP) {
continue;
}
nodeType = element.wrap || node.type;
candidates = VisitorKeys[nodeType];
current = candidates.length;
while ((current -= 1) >= 0) {
key = candidates[current];
candidate = node[key];
if (!candidate) {
continue;
}
if (!isArray(candidate)) {
worklist.push(new Element(candidate, key, null, new Reference(node, key)));
continue;
}
current2 = candidate.length;
while ((current2 -= 1) >= 0) {
if (!candidate[current2]) {
continue;
}
if (nodeType === Syntax.ObjectExpression && 'properties' === candidates[current]) {
element = new Element(candidate[current2], [key, current2], 'Property', new Reference(candidate, current2));
} else {
element = new Element(candidate[current2], [key, current2], null, new Reference(candidate, current2));
}
worklist.push(element);
}
}
}
return outer.root;
};
function traverse(root, visitor) {
var controller = new Controller();
return controller.traverse(root, visitor);
}
function replace(root, visitor) {
var controller = new Controller();
return controller.replace(root, visitor);
}
function extendCommentRange(comment, tokens) {
var target;
target = upperBound(tokens, function search(token) {
return token.range[0] > comment.range[0];
});
comment.extendedRange = [comment.range[0], comment.range[1]];
if (target !== tokens.length) {
comment.extendedRange[1] = tokens[target].range[0];
}
target -= 1;
if (target >= 0) {
comment.extendedRange[0] = tokens[target].range[1];
}
return comment;
}
function attachComments(tree, providedComments, tokens) {
// At first, we should calculate extended comment ranges.
var comments = [], comment, len, i, cursor;
if (!tree.range) {
throw new Error('attachComments needs range information');
}
// tokens array is empty, we attach comments to tree as 'leadingComments'
if (!tokens.length) {
if (providedComments.length) {
for (i = 0, len = providedComments.length; i < len; i += 1) {
comment = deepCopy(providedComments[i]);
comment.extendedRange = [0, tree.range[0]];
comments.push(comment);
}
tree.leadingComments = comments;
}
return tree;
}
for (i = 0, len = providedComments.length; i < len; i += 1) {
comments.push(extendCommentRange(deepCopy(providedComments[i]), tokens));
}
// This is based on John Freeman's implementation.
cursor = 0;
traverse(tree, {
enter: function (node) {
var comment;
while (cursor < comments.length) {
comment = comments[cursor];
if (comment.extendedRange[1] > node.range[0]) {
break;
}
if (comment.extendedRange[1] === node.range[0]) {
if (!node.leadingComments) {
node.leadingComments = [];
}
node.leadingComments.push(comment);
comments.splice(cursor, 1);
} else {
cursor += 1;
}
}
// already out of owned node
if (cursor === comments.length) {
return VisitorOption.Break;
}
if (comments[cursor].extendedRange[0] > node.range[1]) {
return VisitorOption.Skip;
}
}
});
cursor = 0;
traverse(tree, {
leave: function (node) {
var comment;
while (cursor < comments.length) {
comment = comments[cursor];
if (node.range[1] < comment.extendedRange[0]) {
break;
}
if (node.range[1] === comment.extendedRange[0]) {
if (!node.trailingComments) {
node.trailingComments = [];
}
node.trailingComments.push(comment);
comments.splice(cursor, 1);
} else {
cursor += 1;
}
}
// already out of owned node
if (cursor === comments.length) {
return VisitorOption.Break;
}
if (comments[cursor].extendedRange[0] > node.range[1]) {
return VisitorOption.Skip;
}
}
});
return tree;
}
exports.version = '1.3.3-dev';
exports.Syntax = Syntax;
exports.traverse = traverse;
exports.replace = replace;
exports.attachComments = attachComments;
exports.VisitorKeys = VisitorKeys;
exports.VisitorOption = VisitorOption;
exports.Controller = Controller;
}));
/* vim: set sw=4 ts=4 et tw=80 : */
================================================
FILE: editor/scripts/expander.js
================================================
/*
Copyright (C) 2012 Tim Disney
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
(function (root, factory) {
if (typeof exports === 'object') {
// CommonJS
factory(exports, require('underscore'), require('./parser'), require('./syntax'), require('./scopedEval'), require('./patterns'), require('escodegen'));
} else if (typeof define === 'function' && define.amd) {
// AMD. Register as an anonymous module.
define([
'exports',
'underscore',
'parser',
'syntax',
'scopedEval',
'patterns',
'escodegen'
], factory);
}
}(this, function (exports$2, _, parser, syn, se, patternModule, gen) {
'use strict';
// escodegen still doesn't quite support AMD: https://github.com/Constellation/escodegen/issues/115
var codegen = typeof escodegen !== 'undefined' ? escodegen : gen;
var assert = syn.assert;
var throwSyntaxError = syn.throwSyntaxError;
var throwSyntaxCaseError = syn.throwSyntaxCaseError;
var SyntaxCaseError = syn.SyntaxCaseError;
var unwrapSyntax = syn.unwrapSyntax;
// used to export "private" methods for unit testing
exports$2._test = {};
function StringMap(o) {
this.__data = o || {};
}
StringMap.prototype = {
has: function (key) {
return Object.prototype.hasOwnProperty.call(this.__data, key);
},
get: function (key) {
return this.has(key) ? this.__data[key] : void 0;
},
set: function (key, value) {
this.__data[key] = value;
},
extend: function () {
var args = _.map(_.toArray(arguments), function (x) {
return x.__data;
});
_.extend.apply(_, [this.__data].concat(args));
return this;
}
};
var scopedEval = se.scopedEval;
var Rename = syn.Rename;
var Mark = syn.Mark;
var Def = syn.Def;
var syntaxFromToken = syn.syntaxFromToken;
var joinSyntax = syn.joinSyntax;
var builtinMode = false;
var expandCount = 0;
var maxExpands;
var push = Array.prototype.push;
function remdup(mark, mlist) {
if (mark === _.first(mlist)) {
return _.rest(mlist, 1);
}
return [mark].concat(mlist);
}
// (CSyntax) -> [...Num]
function marksof(ctx, stopName, originalName) {
while (ctx) {
if (ctx.constructor === Mark) {
return remdup(ctx.mark, marksof(ctx.context, stopName, originalName));
}
if (ctx.constructor === Def) {
ctx = ctx.context;
continue;
}
if (ctx.constructor === Rename) {
if (stopName === originalName + '$' + ctx.name) {
return [];
}
ctx = ctx.context;
continue;
}
}
return [];
}
function resolve(stx) {
return resolveCtx(stx.token.value, stx.context, [], [], {});
}
// This call memoizes intermediate results in the recursive invocation.
// The scope of the memo cache is the resolve() call, so that multiple
// resolve() calls don't walk all over each other, and memory used for
// the memoization can be garbage collected.
//
// The memoization addresses issue #232.
//
// It looks like the memoization uses only the context and doesn't look
// at originalName, stop_spine and stop_branch arguments. This is valid
// because whenever in every recursive call operates on a "deeper" or
// else a newly created context. Therefore the collection of
// [originalName, stop_spine, stop_branch] can all be associated with a
// unique context. This argument is easier to see in a recursive
// rewrite of the resolveCtx function than with the while loop
// optimization - https://gist.github.com/srikumarks/9847260 - where the
// recursive steps always operate on a different context.
//
// This might make it seem that the resolution results can be stored on
// the context object itself, but that would not work in general
// because multiple resolve() calls will walk over each other's cache
// results, which fails tests. So the memoization uses only a context's
// unique instance numbers as the memoization key and is local to each
// resolve() call.
//
// With this memoization, the time complexity of the resolveCtx call is
// no longer exponential for the cases in issue #232.
function resolveCtx(originalName, ctx, stop_spine, stop_branch, cache) {
if (!ctx) {
return originalName;
}
var key = ctx.instNum;
return cache[key] || (cache[key] = resolveCtxFull(originalName, ctx, stop_spine, stop_branch, cache));
}
// (Syntax) -> String
function resolveCtxFull(originalName, ctx, stop_spine, stop_branch, cache) {
while (true) {
if (!ctx) {
return originalName;
}
if (ctx.constructor === Mark) {
ctx = ctx.context;
continue;
}
if (ctx.constructor === Def) {
if (stop_spine.indexOf(ctx.defctx) !== -1) {
ctx = ctx.context;
continue;
} else {
stop_branch = unionEl(stop_branch, ctx.defctx);
ctx = renames(ctx.defctx, ctx.context, originalName);
continue;
}
}
if (ctx.constructor === Rename) {
if (originalName === ctx.id.token.value) {
var idName = resolveCtx(ctx.id.token.value, ctx.id.context, stop_branch, stop_branch, cache);
var subName = resolveCtx(originalName, ctx.context, unionEl(stop_spine, ctx.def), stop_branch, cache);
if (idName === subName) {
var idMarks = marksof(ctx.id.context, originalName + '$' + ctx.name, originalName);
var subMarks = marksof(ctx.context, originalName + '$' + ctx.name, originalName);
if (arraysEqual(idMarks, subMarks)) {
return originalName + '$' + ctx.name;
}
}
}
ctx = ctx.context;
continue;
}
return originalName;
}
}
function arraysEqual(a, b) {
if (a.length !== b.length) {
return false;
}
for (var i = 0; i < a.length; i++) {
if (a[i] !== b[i]) {
return false;
}
}
return true;
}
function renames(defctx, oldctx, originalName) {
var acc = oldctx;
for (var i = 0; i < defctx.length; i++) {
if (defctx[i].id.token.value === originalName) {
acc = new Rename(defctx[i].id, defctx[i].name, acc, defctx);
}
}
return acc;
}
function unionEl(arr, el) {
if (arr.indexOf(el) === -1) {
var res = arr.slice(0);
res.push(el);
return res;
}
return arr;
}
var nextFresh = 0;
// fun () -> Num
function fresh() {
return nextFresh++;
}
// wraps the array of syntax objects in the delimiters given by the second argument
// ([...CSyntax], CSyntax) -> [...CSyntax]
function wrapDelim(towrap, delimSyntax) {
assert(delimSyntax.token.type === parser.Token.Delimiter, 'expecting a delimiter token');
return syntaxFromToken({
type: parser.Token.Delimiter,
value: delimSyntax.token.value,
inner: towrap,
range: delimSyntax.token.range,
startLineNumber: delimSyntax.token.startLineNumber,
lineStart: delimSyntax.token.lineStart
}, delimSyntax);
}
// (CSyntax) -> [...CSyntax]
function getParamIdentifiers(argSyntax) {
if (argSyntax.token.type === parser.Token.Delimiter) {
return _.filter(argSyntax.token.inner, function (stx) {
return stx.token.value !== ',';
});
} else if (argSyntax.token.type === parser.Token.Identifier) {
return [argSyntax];
} else {
assert(false, 'expecting a delimiter or a single identifier for function parameters');
}
}
function inherit(parent, child, methods) {
var P = function () {
};
P.prototype = parent.prototype;
child.prototype = new P();
child.prototype.constructor = child;
_.extend(child.prototype, methods);
}
// A TermTree is the core data structure for the macro expansion process.
// It acts as a semi-structured representation of the syntax.
function TermTree() {
}
TermTree.properties = [];
TermTree.create = function () {
return new TermTree();
};
TermTree.prototype = {
'isTermTree': true,
'destruct': function () {
var self = this;
return _.reduce(this.constructor.properties, function (acc, prop) {
if (self[prop] && self[prop].isTermTree) {
push.apply(acc, self[prop].destruct());
return acc;
} else if (self[prop] && self[prop].token && self[prop].token.inner) {
var src = self[prop].token;
var keys = Object.keys(src);
var newtok = {};
for (var i = 0, len = keys.length, key; i < len; i++) {
key = keys[i];
newtok[key] = src[key];
}
var clone = syntaxFromToken(newtok, self[prop]);
clone.token.inner = _.reduce(clone.token.inner, function (acc$2, t) {
if (t && t.isTermTree) {
push.apply(acc$2, t.destruct());
return acc$2;
}
acc$2.push(t);
return acc$2;
}, []);
acc.push(clone);
return acc;
} else if (Array.isArray(self[prop])) {
var destArr = _.reduce(self[prop], function (acc$2, t) {
if (t && t.isTermTree) {
push.apply(acc$2, t.destruct());
return acc$2;
}
acc$2.push(t);
return acc$2;
}, []);
push.apply(acc, destArr);
return acc;
} else if (self[prop]) {
acc.push(self[prop]);
return acc;
} else {
return acc;
}
}, []);
},
'addDefCtx': function (def) {
var self = this;
_.each(this.constructor.properties, function (prop) {
if (Array.isArray(self[prop])) {
self[prop] = _.map(self[prop], function (item) {
return item.addDefCtx(def);
});
} else if (self[prop]) {
self[prop] = self[prop].addDefCtx(def);
}
});
return this;
},
'rename': function (id, name) {
var self = this;
_.each(this.constructor.properties, function (prop) {
if (Array.isArray(self[prop])) {
self[prop] = _.map(self[prop], function (item) {
return item.rename(id, name);
});
} else if (self[prop]) {
self[prop] = self[prop].rename(id, name);
}
});
return this;
}
};
function EOF(eof) {
this.eof = eof;
}
EOF.properties = ['eof'];
EOF.create = function (eof) {
return new EOF(eof);
};
inherit(TermTree, EOF, { 'isEOF': true });
function Keyword(keyword) {
this.keyword = keyword;
}
Keyword.properties = ['keyword'];
Keyword.create = function (keyword) {
return new Keyword(keyword);
};
inherit(TermTree, Keyword, { 'isKeyword': true });
function Punc(punc) {
this.punc = punc;
}
Punc.properties = ['punc'];
Punc.create = function (punc) {
return new Punc(punc);
};
inherit(TermTree, Punc, { 'isPunc': true });
function Delimiter(delim) {
this.delim = delim;
}
Delimiter.properties = ['delim'];
Delimiter.create = function (delim) {
return new Delimiter(delim);
};
inherit(TermTree, Delimiter, { 'isDelimiter': true });
function LetMacro(name, body) {
this.name = name;
this.body = body;
}
LetMacro.properties = [
'name',
'body'
];
LetMacro.create = function (name, body) {
return new LetMacro(name, body);
};
inherit(TermTree, LetMacro, { 'isLetMacro': true });
function Macro(name, body) {
this.name = name;
this.body = body;
}
Macro.properties = [
'name',
'body'
];
Macro.create = function (name, body) {
return new Macro(name, body);
};
inherit(TermTree, Macro, { 'isMacro': true });
function AnonMacro(body) {
this.body = body;
}
AnonMacro.properties = ['body'];
AnonMacro.create = function (body) {
return new AnonMacro(body);
};
inherit(TermTree, AnonMacro, { 'isAnonMacro': true });
function OperatorDefinition(type, name, prec, assoc, body) {
this.type = type;
this.name = name;
this.prec = prec;
this.assoc = assoc;
this.body = body;
}
OperatorDefinition.properties = [
'type',
'name',
'prec',
'assoc',
'body'
];
OperatorDefinition.create = function (type, name, prec, assoc, body) {
return new OperatorDefinition(type, name, prec, assoc, body);
};
inherit(TermTree, OperatorDefinition, { 'isOperatorDefinition': true });
function Module(body, exports$3) {
this.body = body;
this.exports = exports$3;
}
Module.properties = [
'body',
'exports'
];
Module.create = function (body, exports$3) {
return new Module(body, exports$3);
};
inherit(TermTree, Module, { 'isModule': true });
function Export(name) {
this.name = name;
}
Export.properties = ['name'];
Export.create = function (name) {
return new Export(name);
};
inherit(TermTree, Export, { 'isExport': true });
function VariableDeclaration(ident, eq, init, comma) {
this.ident = ident;
this.eq = eq;
this.init = init;
this.comma = comma;
}
VariableDeclaration.properties = [
'ident',
'eq',
'init',
'comma'
];
VariableDeclaration.create = function (ident, eq, init, comma) {
return new VariableDeclaration(ident, eq, init, comma);
};
inherit(TermTree, VariableDeclaration, { 'isVariableDeclaration': true });
function Statement() {
}
Statement.properties = [];
Statement.create = function () {
return new Statement();
};
inherit(TermTree, Statement, { 'isStatement': true });
function Empty() {
}
Empty.properties = [];
Empty.create = function () {
return new Empty();
};
inherit(Statement, Empty, { 'isEmpty': true });
function CatchClause(keyword, params, body) {
this.keyword = keyword;
this.params = params;
this.body = body;
}
CatchClause.properties = [
'keyword',
'params',
'body'
];
CatchClause.create = function (keyword, params, body) {
return new CatchClause(keyword, params, body);
};
inherit(Statement, CatchClause, { 'isCatchClause': true });
function ForStatement(keyword, cond) {
this.keyword = keyword;
this.cond = cond;
}
ForStatement.properties = [
'keyword',
'cond'
];
ForStatement.create = function (keyword, cond) {
return new ForStatement(keyword, cond);
};
inherit(Statement, ForStatement, { 'isForStatement': true });
function ReturnStatement(keyword, expr) {
this.keyword = keyword;
this.expr = expr;
}
ReturnStatement.properties = [
'keyword',
'expr'
];
ReturnStatement.create = function (keyword, expr) {
return new ReturnStatement(keyword, expr);
};
inherit(Statement, ReturnStatement, {
'isReturnStatement': true,
'destruct': function () {
var expr = this.expr.destruct();
// need to adjust the line numbers to make sure that the expr
// starts on the same line as the return keyword. This might
// not be the case if an operator or infix macro perturbed the
// line numbers during expansion.
expr = adjustLineContext(expr, this.keyword.keyword);
return this.keyword.destruct().concat(expr);
}
});
function Expr() {
}
Expr.properties = [];
Expr.create = function () {
return new Expr();
};
inherit(Statement, Expr, { 'isExpr': true });
function UnaryOp(op, expr) {
this.op = op;
this.expr = expr;
}
UnaryOp.properties = [
'op',
'expr'
];
UnaryOp.create = function (op, expr) {
return new UnaryOp(op, expr);
};
inherit(Expr, UnaryOp, { 'isUnaryOp': true });
function PostfixOp(expr, op) {
this.expr = expr;
this.op = op;
}
PostfixOp.properties = [
'expr',
'op'
];
PostfixOp.create = function (expr, op) {
return new PostfixOp(expr, op);
};
inherit(Expr, PostfixOp, { 'isPostfixOp': true });
function BinOp(left, op, right) {
this.left = left;
this.op = op;
this.right = right;
}
BinOp.properties = [
'left',
'op',
'right'
];
BinOp.create = function (left, op, right) {
return new BinOp(left, op, right);
};
inherit(Expr, BinOp, { 'isBinOp': true });
function AssignmentExpression(left, op, right) {
this.left = left;
this.op = op;
this.right = right;
}
AssignmentExpression.properties = [
'left',
'op',
'right'
];
AssignmentExpression.create = function (left, op, right) {
return new AssignmentExpression(left, op, right);
};
inherit(Expr, AssignmentExpression, { 'isAssignmentExpression': true });
function ConditionalExpression(cond, question, tru, colon, fls) {
this.cond = cond;
this.question = question;
this.tru = tru;
this.colon = colon;
this.fls = fls;
}
ConditionalExpression.properties = [
'cond',
'question',
'tru',
'colon',
'fls'
];
ConditionalExpression.create = function (cond, question, tru, colon, fls) {
return new ConditionalExpression(cond, question, tru, colon, fls);
};
inherit(Expr, ConditionalExpression, { 'isConditionalExpression': true });
function NamedFun(keyword, star, name, params, body) {
this.keyword = keyword;
this.star = star;
this.name = name;
this.params = params;
this.body = body;
}
NamedFun.properties = [
'keyword',
'star',
'name',
'params',
'body'
];
NamedFun.create = function (keyword, star, name, params, body) {
return new NamedFun(keyword, star, name, params, body);
};
inherit(Expr, NamedFun, { 'isNamedFun': true });
function AnonFun(keyword, star, params, body) {
this.keyword = keyword;
this.star = star;
this.params = params;
this.body = body;
}
AnonFun.properties = [
'keyword',
'star',
'params',
'body'
];
AnonFun.create = function (keyword, star, params, body) {
return new AnonFun(keyword, star, params, body);
};
inherit(Expr, AnonFun, { 'isAnonFun': true });
function ArrowFun(params, arrow, body) {
this.params = params;
this.arrow = arrow;
this.body = body;
}
ArrowFun.properties = [
'params',
'arrow',
'body'
];
ArrowFun.create = function (params, arrow, body) {
return new ArrowFun(params, arrow, body);
};
inherit(Expr, ArrowFun, { 'isArrowFun': true });
function ObjDotGet(left, dot, right) {
this.left = left;
this.dot = dot;
this.right = right;
}
ObjDotGet.properties = [
'left',
'dot',
'right'
];
ObjDotGet.create = function (left, dot, right) {
return new ObjDotGet(left, dot, right);
};
inherit(Expr, ObjDotGet, { 'isObjDotGet': true });
function ObjGet(left, right) {
this.left = left;
this.right = right;
}
ObjGet.properties = [
'left',
'right'
];
ObjGet.create = function (left, right) {
return new ObjGet(left, right);
};
inherit(Expr, ObjGet, { 'isObjGet': true });
function Template(template) {
this.template = template;
}
Template.properties = ['template'];
Template.create = function (template) {
return new Template(template);
};
inherit(Expr, Template, { 'isTemplate': true });
function Call(fun, args) {
this.fun = fun;
this.args = args;
}
Call.properties = [
'fun',
'args'
];
Call.create = function (fun, args) {
return new Call(fun, args);
};
inherit(Expr, Call, { 'isCall': true });
function PrimaryExpression() {
}
PrimaryExpression.properties = [];
PrimaryExpression.create = function () {
return new PrimaryExpression();
};
inherit(Expr, PrimaryExpression, { 'isPrimaryExpression': true });
function ThisExpression(keyword) {
this.keyword = keyword;
}
ThisExpression.properties = ['keyword'];
ThisExpression.create = function (keyword) {
return new ThisExpression(keyword);
};
inherit(PrimaryExpression, ThisExpression, { 'isThisExpression': true });
function Lit(lit) {
this.lit = lit;
}
Lit.properties = ['lit'];
Lit.create = function (lit) {
return new Lit(lit);
};
inherit(PrimaryExpression, Lit, { 'isLit': true });
function Block(body) {
this.body = body;
}
Block.properties = ['body'];
Block.create = function (body) {
return new Block(body);
};
inherit(PrimaryExpression, Block, { 'isBlock': true });
function ArrayLiteral(array) {
this.array = array;
}
ArrayLiteral.properties = ['array'];
ArrayLiteral.create = function (array) {
return new ArrayLiteral(array);
};
inherit(PrimaryExpression, ArrayLiteral, { 'isArrayLiteral': true });
function Id(id) {
this.id = id;
}
Id.properties = ['id'];
Id.create = function (id) {
return new Id(id);
};
inherit(PrimaryExpression, Id, { 'isId': true });
function Partial() {
}
Partial.properties = [];
Partial.create = function () {
return new Partial();
};
inherit(TermTree, Partial, { 'isPartial': true });
function PartialOperation(stx, left) {
this.stx = stx;
this.left = left;
}
PartialOperation.properties = [
'stx',
'left'
];
PartialOperation.create = function (stx, left) {
return new PartialOperation(stx, left);
};
inherit(Partial, PartialOperation, { 'isPartialOperation': true });
function PartialExpression(stx, left, combine) {
this.stx = stx;
this.left = left;
this.combine = combine;
}
PartialExpression.properties = [
'stx',
'left',
'combine'
];
PartialExpression.create = function (stx, left, combine) {
return new PartialExpression(stx, left, combine);
};
inherit(Partial, PartialExpression, { 'isPartialExpression': true });
function BindingStatement(keyword, decls) {
this.keyword = keyword;
this.decls = decls;
}
BindingStatement.properties = [
'keyword',
'decls'
];
BindingStatement.create = function (keyword, decls) {
return new BindingStatement(keyword, decls);
};
inherit(Statement, BindingStatement, {
'isBindingStatement': true,
'destruct': function () {
return this.keyword.destruct().concat(_.reduce(this.decls, function (acc, decl) {
push.apply(acc, decl.destruct());
return acc;
}, []));
}
});
function VariableStatement(keyword, decls) {
this.keyword = keyword;
this.decls = decls;
}
VariableStatement.properties = [
'keyword',
'decls'
];
VariableStatement.create = function (keyword, decls) {
return new VariableStatement(keyword, decls);
};
inherit(BindingStatement, VariableStatement, { 'isVariableStatement': true });
function LetStatement(keyword, decls) {
this.keyword = keyword;
this.decls = decls;
}
LetStatement.properties = [
'keyword',
'decls'
];
LetStatement.create = function (keyword, decls) {
return new LetStatement(keyword, decls);
};
inherit(BindingStatement, LetStatement, { 'isLetStatement': true });
function ConstStatement(keyword, decls) {
this.keyword = keyword;
this.decls = decls;
}
ConstStatement.properties = [
'keyword',
'decls'
];
ConstStatement.create = function (keyword, decls) {
return new ConstStatement(keyword, decls);
};
inherit(BindingStatement, ConstStatement, { 'isConstStatement': true });
function ParenExpression(args, delim, commas) {
this.args = args;
this.delim = delim;
this.commas = commas;
}
ParenExpression.properties = [
'args',
'delim',
'commas'
];
ParenExpression.create = function (args, delim, commas) {
return new ParenExpression(args, delim, commas);
};
inherit(PrimaryExpression, ParenExpression, {
'isParenExpression': true,
'destruct': function () {
var commas = this.commas.slice();
var src = this.delim.token;
var keys = Object.keys(src);
var newtok = {};
for (var i = 0, len = keys.length, key; i < len; i++) {
key = keys[i];
newtok[key] = src[key];
}
var delim = syntaxFromToken(newtok, this.delim);
delim.token.inner = _.reduce(this.args, function (acc, term) {
assert(term && term.isTermTree, 'expecting term trees in destruct of ParenExpression');
push.apply(acc, term.destruct());
// add all commas except for the last one
if (commas.length > 0) {
acc.push(commas.shift());
}
return acc;
}, []);
return Delimiter.create(delim).destruct();
}
});
function stxIsUnaryOp(stx) {
var staticOperators = [
'+',
'-',
'~',
'!',
'delete',
'void',
'typeof',
'yield',
'new',
'++',
'--'
];
return _.contains(staticOperators, unwrapSyntax(stx));
}
function stxIsBinOp(stx) {
var staticOperators = [
'+',
'-',
'*',
'/',
'%',
'||',
'&&',
'|',
'&',
'^',
'==',
'!=',
'===',
'!==',
'<',
'>',
'<=',
'>=',
'in',
'instanceof',
'<<',
'>>',
'>>>'
];
return _.contains(staticOperators, unwrapSyntax(stx));
}
function getUnaryOpPrec(op) {
var operatorPrecedence = {
'new': 16,
'++': 15,
'--': 15,
'!': 14,
'~': 14,
'+': 14,
'-': 14,
'typeof': 14,
'void': 14,
'delete': 14,
'yield': 2
};
return operatorPrecedence[op];
}
function getBinaryOpPrec(op) {
var operatorPrecedence = {
'*': 13,
'/': 13,
'%': 13,
'+': 12,
'-': 12,
'>>': 11,
'<<': 11,
'>>>': 11,
'<': 10,
'<=': 10,
'>': 10,
'>=': 10,
'in': 10,
'instanceof': 10,
'==': 9,
'!=': 9,
'===': 9,
'!==': 9,
'&': 8,
'^': 7,
'|': 6,
'&&': 5,
'||': 4
};
return operatorPrecedence[op];
}
function getBinaryOpAssoc(op) {
var operatorAssoc = {
'*': 'left',
'/': 'left',
'%': 'left',
'+': 'left',
'-': 'left',
'>>': 'left',
'<<': 'left',
'>>>': 'left',
'<': 'left',
'<=': 'left',
'>': 'left',
'>=': 'left',
'in': 'left',
'instanceof': 'left',
'==': 'left',
'!=': 'left',
'===': 'left',
'!==': 'left',
'&': 'left',
'^': 'left',
'|': 'left',
'&&': 'left',
'||': 'left'
};
return operatorAssoc[op];
}
function stxIsAssignOp(stx) {
var staticOperators = [
'=',
'+=',
'-=',
'*=',
'/=',
'%=',
'<<=',
'>>=',
'>>>=',
'|=',
'^=',
'&='
];
return _.contains(staticOperators, unwrapSyntax(stx));
}
function enforestVarStatement(stx, context, varStx) {
var decls = [];
var rest = stx;
var rhs;
if (!rest.length) {
throwSyntaxError('enforest', 'Unexpected end of input', varStx);
}
if (expandCount >= maxExpands) {
return null;
}
while (rest.length) {
if (rest[0].token.type === parser.Token.Identifier) {
if (rest[1] && rest[1].token.type === parser.Token.Punctuator && rest[1].token.value === '=') {
rhs = get_expression(rest.slice(2), context);
if (rhs.result == null) {
throwSyntaxError('enforest', 'Unexpected token', rhs.rest[0]);
}
if (rhs.rest[0] && rhs.rest[0].token.type === parser.Token.Punctuator && rhs.rest[0].token.value === ',') {
decls.push(VariableDeclaration.create(rest[0], rest[1], rhs.result, rhs.rest[0]));
rest = rhs.rest.slice(1);
continue;
} else {
decls.push(VariableDeclaration.create(rest[0], rest[1], rhs.result, null));
rest = rhs.rest;
break;
}
} else if (rest[1] && rest[1].token.type === parser.Token.Punctuator && rest[1].token.value === ',') {
decls.push(VariableDeclaration.create(rest[0], null, null, rest[1]));
rest = rest.slice(2);
} else {
decls.push(VariableDeclaration.create(rest[0], null, null, null));
rest = rest.slice(1);
break;
}
} else {
throwSyntaxError('enforest', 'Unexpected token', rest[0]);
}
}
return {
result: decls,
rest: rest
};
}
function enforestAssignment(stx, context, left, prevStx, prevTerms) {
var op = stx[0];
var rightStx = stx.slice(1);
var opTerm = Punc.create(stx[0]);
var opPrevStx = tagWithTerm(opTerm, [stx[0]]).concat(tagWithTerm(left, left.destruct().reverse()), prevStx);
var opPrevTerms = [
opTerm,
left
].concat(prevTerms);
var opRes = enforest(rightStx, context, opPrevStx, opPrevTerms);
if (opRes.result) {
// Lookbehind was matched, so it may not even be a binop anymore.
if (opRes.prevTerms.length < opPrevTerms.length) {
return opRes;
}
var right = opRes.result;
// only a binop if the right is a real expression
// so 2+2++ will only match 2+2
if (right.isExpr) {
var term = AssignmentExpression.create(left, op, right);
return {
result: term,
rest: opRes.rest,
prevStx: prevStx,
prevTerms: prevTerms
};
}
} else {
return opRes;
}
}
function enforestParenExpression(parens, context) {
var argRes, enforestedArgs = [], commas = [];
var innerTokens = parens.expose().token.inner;
while (innerTokens.length > 0) {
argRes = enforest(innerTokens, context);
if (!argRes.result || !argRes.result.isExpr) {
return null;
}
enforestedArgs.push(argRes.result);
innerTokens = argRes.rest;
if (innerTokens[0] && innerTokens[0].token.value === ',') {
// record the comma for later
commas.push(innerTokens[0]);
// but dump it for the next loop turn
innerTokens = innerTokens.slice(1);
} else {
// either there are no more tokens or
// they aren't a comma, either way we
// are done with the loop
break;
}
}
return innerTokens.length ? null : ParenExpression.create(enforestedArgs, parens, commas);
}
function adjustLineContext(stx, original, current) {
current = current || {
lastLineNumber: stx[0].token.lineNumber || stx[0].token.startLineNumber,
lineNumber: original.token.lineNumber
};
return _.map(stx, function (stx$2) {
if (stx$2.token.type === parser.Token.Delimiter) {
// handle tokens with missing line info
stx$2.token.startLineNumber = typeof stx$2.token.startLineNumber == 'undefined' ? original.token.lineNumber : stx$2.token.startLineNumber;
stx$2.token.endLineNumber = typeof stx$2.token.endLineNumber == 'undefined' ? original.token.lineNumber : stx$2.token.endLineNumber;
stx$2.token.startLineStart = typeof stx$2.token.startLineStart == 'undefined' ? original.token.lineStart : stx$2.token.startLineStart;
stx$2.token.endLineStart = typeof stx$2.token.endLineStart == 'undefined' ? original.token.lineStart : stx$2.token.endLineStart;
stx$2.token.startRange = typeof stx$2.token.startRange == 'undefined' ? original.token.range : stx$2.token.startRange;
stx$2.token.endRange = typeof stx$2.token.endRange == 'undefined' ? original.token.range : stx$2.token.endRange;
stx$2.token.sm_startLineNumber = typeof stx$2.token.sm_startLineNumber == 'undefined' ? stx$2.token.startLineNumber : stx$2.token.sm_startLineNumber;
stx$2.token.sm_endLineNumber = typeof stx$2.token.sm_endLineNumber == 'undefined' ? stx$2.token.endLineNumber : stx$2.token.sm_endLineNumber;
stx$2.token.sm_startLineStart = typeof stx$2.token.sm_startLineStart == 'undefined' ? stx$2.token.startLineStart : stx$2.token.sm_startLineStart;
stx$2.token.sm_endLineStart = typeof stx$2.token.sm_endLineStart == 'undefined' ? stx$2.token.endLineStart : stx$2.token.sm_endLineStart;
stx$2.token.sm_startRange = typeof stx$2.token.sm_startRange == 'undefined' ? stx$2.token.startRange : stx$2.token.sm_startRange;
stx$2.token.sm_endRange = typeof stx$2.token.sm_endRange == 'undefined' ? stx$2.token.endRange : stx$2.token.sm_endRange;
if (stx$2.token.startLineNumber !== current.lineNumber) {
if (stx$2.token.startLineNumber !== current.lastLineNumber) {
current.lineNumber++;
current.lastLineNumber = stx$2.token.startLineNumber;
stx$2.token.startLineNumber = current.lineNumber;
} else {
current.lastLineNumber = stx$2.token.startLineNumber;
stx$2.token.startLineNumber = current.lineNumber;
}
}
if (stx$2.token.inner.length > 0) {
stx$2.token.inner = adjustLineContext(stx$2.token.inner, original, current);
}
return stx$2;
}
// handle tokens with missing line info
stx$2.token.lineNumber = typeof stx$2.token.lineNumber == 'undefined' ? original.token.lineNumber : stx$2.token.lineNumber;
stx$2.token.lineStart = typeof stx$2.token.lineStart == 'undefined' ? original.token.lineStart : stx$2.token.lineStart;
stx$2.token.range = typeof stx$2.token.range == 'undefined' ? original.token.range : stx$2.token.range;
// Only set the sourcemap line info once. Necessary because a single
// syntax object can go through expansion multiple times. If at some point
// we want to write an expansion stepper this might be a good place to store
// intermediate expansion line info (ie push to a stack instead of
// just write once).
stx$2.token.sm_lineNumber = typeof stx$2.token.sm_lineNumber == 'undefined' ? stx$2.token.lineNumber : stx$2.token.sm_lineNumber;
stx$2.token.sm_lineStart = typeof stx$2.token.sm_lineStart == 'undefined' ? stx$2.token.lineStart : stx$2.token.sm_lineStart;
stx$2.token.sm_range = typeof stx$2.token.sm_range == 'undefined' ? stx$2.token.range.slice() : stx$2.token.sm_range;
// move the line info to line up with the macro name
// (line info starting from the macro name)
if (stx$2.token.lineNumber !== current.lineNumber) {
if (stx$2.token.lineNumber !== current.lastLineNumber) {
current.lineNumber++;
current.lastLineNumber = stx$2.token.lineNumber;
stx$2.token.lineNumber = current.lineNumber;
} else {
current.lastLineNumber = stx$2.token.lineNumber;
stx$2.token.lineNumber = current.lineNumber;
}
}
return stx$2;
});
}
function getName(head, rest) {
var idx = 0;
var curr = head;
var next = rest[idx];
var name = [head];
while (true) {
if (next && (next.token.type === parser.Token.Punctuator || next.token.type === parser.Token.Identifier || next.token.type === parser.Token.Keyword) && (curr.token.sm_range && next.token.sm_range && curr.token.sm_range[1] === next.token.sm_range[0] || curr.token.range[1] === next.token.range[0])) {
name.push(next);
curr = next;
next = rest[++idx];
} else {
return name;
}
}
}
function getMacroInEnv(head, rest, env) {
if (!(head.token.type === parser.Token.Identifier || head.token.type === parser.Token.Keyword || head.token.type === parser.Token.Punctuator)) {
return null;
}
var name = getName(head, rest);
// simple case, don't need to create a new syntax object
if (name.length === 1) {
if (env.names.get(unwrapSyntax(name[0]))) {
var resolvedName = resolve(name[0]);
if (env.has(resolvedName)) {
return env.get(resolvedName);
}
}
return null;
} else {
while (name.length > 0) {
var nameStr = name.map(unwrapSyntax).join('');
if (env.names.get(nameStr)) {
var nameStx = syn.makeIdent(nameStr, name[0]);
var resolvedName = resolve(nameStx);
if (env.has(resolvedName)) {
return env.get(resolvedName);
}
}
name.pop();
}
return null;
}
}
function nameInEnv(head, rest, env) {
return getMacroInEnv(head, rest, env) !== null;
}
// This should only be used on things that can't be rebound except by
// macros (puncs, keywords).
function resolveFast(stx, env) {
var name = unwrapSyntax(stx);
return env.names.get(name) ? resolve(stx) : name;
}
function expandMacro(stx, context, opCtx, opType, macroObj) {
// pull the macro transformer out the environment
var head = stx[0];
var rest = stx.slice(1);
macroObj = macroObj || getMacroInEnv(head, rest, context.env);
var stxArg = rest.slice(macroObj.fullName.length - 1);
var transformer;
if (opType != null) {
assert(opType === 'binary' || opType === 'unary', 'operator type should be either unary or binary: ' + opType);
transformer = macroObj[opType].fn;
} else {
transformer = macroObj.fn;
}
assert(typeof transformer === 'function', 'Macro transformer not bound for: ' + head.token.value);
// create a new mark to be used for the input to
// the macro
var newMark = fresh();
var transformerContext = makeExpanderContext(_.defaults({ mark: newMark }, context));
// apply the transformer
var rt;
try {
rt = transformer([head].concat(stxArg), transformerContext, opCtx.prevStx, opCtx.prevTerms);
} catch (e) {
if (e instanceof SyntaxCaseError) {
// add a nicer error for syntax case
var nameStr = macroObj.fullName.map(function (stx$2) {
return stx$2.token.value;
}).join('');
if (opType != null) {
var argumentString = '`' + stxArg.slice(0, 5).map(function (stx$2) {
return stx$2.token.value;
}).join(' ') + '...`';
throwSyntaxError('operator', 'Operator `' + nameStr + '` could not be matched with ' + argumentString, head);
} else {
var argumentString = '`' + stxArg.slice(0, 5).map(function (stx$2) {
return stx$2.token.value;
}).join(' ') + '...`';
throwSyntaxError('macro', 'Macro `' + nameStr + '` could not be matched with ' + argumentString, head);
}
} else {
// just rethrow it
throw e;
}
}
if (!builtinMode && !macroObj.builtin) {
expandCount++;
}
if (!Array.isArray(rt.result)) {
throwSyntaxError('enforest', 'Macro must return a syntax array', stx[0]);
}
if (rt.result.length > 0) {
var adjustedResult = adjustLineContext(rt.result, head);
if (stx[0].token.leadingComments) {
if (adjustedResult[0].token.leadingComments) {
adjustedResult[0].token.leadingComments = adjustedResult[0].token.leadingComments.concat(head.token.leadingComments);
} else {
adjustedResult[0].token.leadingComments = head.token.leadingComments;
}
}
rt.result = adjustedResult;
}
return rt;
}
function comparePrec(left, right, assoc) {
if (assoc === 'left') {
return left <= right;
}
return left < right;
}
// enforest the tokens, returns an object with the `result` TermTree and
// the uninterpreted `rest` of the syntax
function enforest(toks, context, prevStx, prevTerms) {
assert(toks.length > 0, 'enforest assumes there are tokens to work with');
prevStx = prevStx || [];
prevTerms = prevTerms || [];
if (expandCount >= maxExpands) {
return {
result: null,
rest: toks
};
}
function step(head, rest, opCtx) {
var innerTokens;
assert(Array.isArray(rest), 'result must at least be an empty array');
if (head.isTermTree) {
var isCustomOp = false;
var uopMacroObj;
var uopSyntax;
if (head.isPunc || head.isKeyword || head.isId) {
if (head.isPunc) {
uopSyntax = head.punc;
} else if (head.isKeyword) {
uopSyntax = head.keyword;
} else if (head.isId) {
uopSyntax = head.id;
}
uopMacroObj = getMacroInEnv(uopSyntax, rest, context.env);
isCustomOp = uopMacroObj && uopMacroObj.isOp;
}
// look up once (we want to check multiple properties on bopMacroObj
// without repeatedly calling getMacroInEnv)
var bopMacroObj;
if (rest[0] && rest[1]) {
bopMacroObj = getMacroInEnv(rest[0], rest.slice(1), context.env);
}
// unary operator
if (isCustomOp && uopMacroObj.unary || uopSyntax && stxIsUnaryOp(uopSyntax)) {
var uopPrec;
if (isCustomOp && uopMacroObj.unary) {
uopPrec = uopMacroObj.unary.prec;
} else {
uopPrec = getUnaryOpPrec(unwrapSyntax(uopSyntax));
}
var opRest = rest;
var uopMacroName;
if (uopMacroObj) {
uopMacroName = [uopSyntax].concat(rest.slice(0, uopMacroObj.fullName.length - 1));
opRest = rest.slice(uopMacroObj.fullName.length - 1);
}
var leftLeft = opCtx.prevTerms[0] && opCtx.prevTerms[0].isPartial ? opCtx.prevTerms[0] : null;
var unopTerm = PartialOperation.create(head, leftLeft);
var unopPrevStx = tagWithTerm(unopTerm, head.destruct().reverse()).concat(opCtx.prevStx);
var unopPrevTerms = [unopTerm].concat(opCtx.prevTerms);
var unopOpCtx = _.extend({}, opCtx, {
combine: function (t) {
if (t.isExpr) {
if (isCustomOp && uopMacroObj.unary) {
var rt$2 = expandMacro(uopMacroName.concat(t.destruct()), context, opCtx, 'unary');
var newt = get_expression(rt$2.result, context);
assert(newt.rest.length === 0, 'should never have left over syntax');
return opCtx.combine(newt.result);
}
return opCtx.combine(UnaryOp.create(uopSyntax, t));
} else {
// not actually an expression so don't create
// a UnaryOp term just return with the punctuator
return opCtx.combine(head);
}
},
prec: uopPrec,
prevStx: unopPrevStx,
prevTerms: unopPrevTerms,
op: unopTerm
});
return step(opRest[0], opRest.slice(1), unopOpCtx);
} // BinOp
else if (head.isExpr && (rest[0] && rest[1] && (stxIsBinOp(rest[0]) && !bopMacroObj || bopMacroObj && bopMacroObj.isOp && bopMacroObj.binary))) {
var opRes;
var op = rest[0];
var left = head;
var rightStx = rest.slice(1);
var leftLeft = opCtx.prevTerms[0] && opCtx.prevTerms[0].isPartial ? opCtx.prevTerms[0] : null;
var leftTerm = PartialExpression.create(head.destruct(), leftLeft, function () {
return step(head, [], opCtx);
});
var opTerm = PartialOperation.create(op, leftTerm);
var opPrevStx = tagWithTerm(opTerm, [rest[0]]).concat(tagWithTerm(leftTerm, head.destruct()).reverse(), opCtx.prevStx);
var opPrevTerms = [
opTerm,
leftTerm
].concat(opCtx.prevTerms);
var isCustomOp = bopMacroObj && bopMacroObj.isOp && bopMacroObj.binary;
var bopPrec;
var bopAssoc;
if (isCustomOp && bopMacroObj.binary) {
bopPrec = bopMacroObj.binary.prec;
bopAssoc = bopMacroObj.binary.assoc;
} else {
bopPrec = getBinaryOpPrec(unwrapSyntax(op));
bopAssoc = getBinaryOpAssoc(unwrapSyntax(op));
}
assert(bopPrec !== undefined, 'expecting a precedence for operator: ' + op);
var newStack;
if (comparePrec(bopPrec, opCtx.prec, bopAssoc)) {
var bopCtx = opCtx;
var combResult = opCtx.combine(head);
if (opCtx.stack.length > 0) {
return step(combResult.term, rest, opCtx.stack[0]);
}
left = combResult.term;
newStack = opCtx.stack;
opPrevStx = combResult.prevStx;
opPrevTerms = combResult.prevTerms;
} else {
newStack = [opCtx].concat(opCtx.stack);
}
assert(opCtx.combine !== undefined, 'expecting a combine function');
var opRightStx = rightStx;
var bopMacroName;
if (isCustomOp) {
bopMacroName = rest.slice(0, bopMacroObj.fullName.length);
opRightStx = rightStx.slice(bopMacroObj.fullName.length - 1);
}
var bopOpCtx = _.extend({}, opCtx, {
combine: function (right) {
if (right.isExpr) {
if (isCustomOp && bopMacroObj.binary) {
var leftStx = left.destruct();
var rightStx$2 = right.destruct();
var rt$2 = expandMacro(bopMacroName.concat(syn.makeDelim('()', leftStx, leftStx[0]), syn.makeDelim('()', rightStx$2, rightStx$2[0])), context, opCtx, 'binary');
var newt = get_expression(rt$2.result, context);
assert(newt.rest.length === 0, 'should never have left over syntax');
return {
term: newt.result,
prevStx: opPrevStx,
prevTerms: opPrevTerms
};
}
return {
term: BinOp.create(left, op, right),
prevStx: opPrevStx,
prevTerms: opPrevTerms
};
} else {
return {
term: head,
prevStx: opPrevStx,
prevTerms: opPrevTerms
};
}
},
prec: bopPrec,
op: opTerm,
stack: newStack,
prevStx: opPrevStx,
prevTerms: opPrevTerms
});
return step(opRightStx[0], opRightStx.slice(1), bopOpCtx);
} // Call
else if (head.isExpr && (rest[0] && rest[0].token.type === parser.Token.Delimiter && rest[0].token.value === '()')) {
var parenRes = enforestParenExpression(rest[0], context);
if (parenRes) {
return step(Call.create(head, parenRes), rest.slice(1), opCtx);
}
} // Conditional ( x ? true : false)
else if (head.isExpr && (rest[0] && resolveFast(rest[0], context.env) === '?')) {
var question = rest[0];
var condRes = enforest(rest.slice(1), context);
if (condRes.result) {
var truExpr = condRes.result;
var condRight = condRes.rest;
if (truExpr.isExpr && condRight[0] && resolveFast(condRight[0], context.env) === ':') {
var colon = condRight[0];
var flsRes = enforest(condRight.slice(1), context);
var flsExpr = flsRes.result;
if (flsExpr.isExpr) {
// operators are combined before the ternary
if (opCtx.prec >= 4) {
// ternary is like a operator with prec 4
var headResult = opCtx.combine(head);
var condTerm = ConditionalExpression.create(headResult.term, question, truExpr, colon, flsExpr);
if (opCtx.stack.length > 0) {
return step(condTerm, flsRes.rest, opCtx.stack[0]);
} else {
return {
result: condTerm,
rest: flsRes.rest,
prevStx: headResult.prevStx,
prevTerms: headResult.prevTerms
};
}
} else {
var condTerm = ConditionalExpression.create(head, question, truExpr, colon, flsExpr);
return step(condTerm, flsRes.rest, opCtx);
}
}
}
}
} // Arrow functions with expression bodies
else if (head.isDelimiter && head.delim.token.value === '()' && rest[0] && rest[0].token.type === parser.Token.Punctuator && resolveFast(rest[0], context.env) === '=>') {
var arrowRes = enforest(rest.slice(1), context);
if (arrowRes.result && arrowRes.result.isExpr) {
return step(ArrowFun.create(head.delim, rest[0], arrowRes.result.destruct()), arrowRes.rest, opCtx);
} else {
throwSyntaxError('enforest', 'Body of arrow function must be an expression', rest.slice(1));
}
} // Arrow functions with expression bodies
else if (head.isId && rest[0] && rest[0].token.type === parser.Token.Punctuator && resolveFast(rest[0], context.env) === '=>') {
var res = enforest(rest.slice(1), context);
if (res.result && res.result.isExpr) {
return step(ArrowFun.create(head.id, rest[0], res.result.destruct()), res.rest, opCtx);
} else {
throwSyntaxError('enforest', 'Body of arrow function must be an expression', rest.slice(1));
}
} // ParenExpr
else if (head.isDelimiter && head.delim.token.value === '()') {
// empty parens are acceptable but enforest
// doesn't accept empty arrays so short
// circuit here
if (head.delim.token.inner.length === 0) {
return step(ParenExpression.create([Empty.create()], head.delim.expose(), []), rest, opCtx);
} else {
var parenRes = enforestParenExpression(head.delim, context);
if (parenRes) {
return step(parenRes, rest, opCtx);
}
}
} // AssignmentExpression
else if (head.isExpr && ((head.isId || head.isObjGet || head.isObjDotGet || head.isThisExpression) && rest[0] && rest[1] && !bopMacroObj && stxIsAssignOp(rest[0]))) {
var opRes = enforestAssignment(rest, context, head, prevStx, prevTerms);
if (opRes && opRes.result) {
return step(opRes.result, opRes.rest, _.extend({}, opCtx, {
prevStx: opRes.prevStx,
prevTerms: opRes.prevTerms
}));
}
} // Postfix
else if (head.isExpr && (rest[0] && (unwrapSyntax(rest[0]) === '++' || unwrapSyntax(rest[0]) === '--'))) {
// Check if the operator is a macro first.
if (context.env.has(resolveFast(rest[0], context.env))) {
var headStx = tagWithTerm(head, head.destruct().reverse());
var opPrevStx = headStx.concat(prevStx);
var opPrevTerms = [head].concat(prevTerms);
var opRes = enforest(rest, context, opPrevStx, opPrevTerms);
if (opRes.prevTerms.length < opPrevTerms.length) {
return opRes;
} else if (opRes.result) {
return step(head, opRes.result.destruct().concat(opRes.rest), opCtx);
}
}
return step(PostfixOp.create(head, rest[0]), rest.slice(1), opCtx);
} // ObjectGet (computed)
else if (head.isExpr && (rest[0] && rest[0].token.value === '[]')) {
return step(ObjGet.create(head, Delimiter.create(rest[0].expose())), rest.slice(1), opCtx);
} // ObjectGet
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))) {
// Check if the identifier is a macro first.
if (context.env.has(resolveFast(rest[1], context.env))) {
var headStx = tagWithTerm(head, head.destruct().reverse());
var dotTerm = Punc.create(rest[0]);
var dotTerms = [dotTerm].concat(head, prevTerms);
var dotStx = tagWithTerm(dotTerm, [rest[0]]).concat(headStx, prevStx);
var dotRes = enforest(rest.slice(1), context, dotStx, dotTerms);
if (dotRes.prevTerms.length < dotTerms.length) {
return dotRes;
} else if (dotRes.result) {
return step(head, [rest[0]].concat(dotRes.result.destruct(), dotRes.rest), opCtx);
}
}
return step(ObjDotGet.create(head, rest[0], rest[1]), rest.slice(2), opCtx);
} // ArrayLiteral
else if (head.isDelimiter && head.delim.token.value === '[]') {
return step(ArrayLiteral.create(head), rest, opCtx);
} // Block
else if (head.isDelimiter && head.delim.token.value === '{}') {
return step(Block.create(head), rest, opCtx);
} // quote syntax
else if (head.isId && unwrapSyntax(head.id) === '#quoteSyntax' && rest[0] && rest[0].token.value === '{}') {
var tempId = fresh();
context.templateMap.set(tempId, rest[0].token.inner);
return step(syn.makeIdent('getTemplate', head.id), [syn.makeDelim('()', [syn.makeValue(tempId, head.id)], head.id)].concat(rest.slice(1)), opCtx);
} // return statement
else if (head.isKeyword && unwrapSyntax(head.keyword) === 'return') {
if (rest[0]) {
var returnPrevStx = tagWithTerm(head, head.destruct()).concat(opCtx.prevStx);
var returnPrevTerms = [head].concat(opCtx.prevTerms);
var returnExpr = enforest(rest, context, returnPrevStx, returnPrevTerms);
if (returnExpr.prevTerms.length < opCtx.prevTerms.length) {
return returnExpr;
}
if (returnExpr.result.isExpr) {
return step(ReturnStatement.create(head, returnExpr.result), returnExpr.rest, opCtx);
}
}
} // let statements
else if (head.isKeyword && unwrapSyntax(head.keyword) === 'let') {
var nameTokens = [];
if (rest[0] && rest[0].token.type === parser.Token.Delimiter && rest[0].token.value === '()') {
nameTokens = rest[0].token.inner;
} else {
nameTokens.push(rest[0]);
}
// Let macro
if (rest[1] && rest[1].token.value === '=' && rest[2] && rest[2].token.value === 'macro') {
var mac = enforest(rest.slice(2), context);
if (mac.result) {
if (!mac.result.isAnonMacro) {
throwSyntaxError('enforest', 'expecting an anonymous macro definition in syntax let binding', rest.slice(2));
}
return step(LetMacro.create(nameTokens, mac.result.body), mac.rest, opCtx);
}
} // Let statement
else {
var lsRes = enforestVarStatement(rest, context, head.keyword);
if (lsRes && lsRes.result) {
return step(LetStatement.create(head, lsRes.result), lsRes.rest, opCtx);
}
}
} // VariableStatement
else if (head.isKeyword && unwrapSyntax(head.keyword) === 'var' && rest[0]) {
var vsRes = enforestVarStatement(rest, context, head.keyword);
if (vsRes && vsRes.result) {
return step(VariableStatement.create(head, vsRes.result), vsRes.rest, opCtx);
}
} // Const Statement
else if (head.isKeyword && unwrapSyntax(head.keyword) === 'const' && rest[0]) {
var csRes = enforestVarStatement(rest, context, head.keyword);
if (csRes && csRes.result) {
return step(ConstStatement.create(head, csRes.result), csRes.rest, opCtx);
}
} // for statement
else if (head.isKeyword && unwrapSyntax(head.keyword) === 'for' && rest[0] && rest[0].token.value === '()') {
return step(ForStatement.create(head.keyword, rest[0]), rest.slice(1), opCtx);
}
} else {
assert(head && head.token, 'assuming head is a syntax object');
var macroObj = expandCount < maxExpands && getMacroInEnv(head, rest, context.env);
// macro invocation
if (macroObj && !macroObj.isOp) {
var rt = expandMacro([head].concat(rest), context, opCtx, null, macroObj);
var newOpCtx = opCtx;
if (rt.prevTerms && rt.prevTerms.length < opCtx.prevTerms.length) {
newOpCtx = rewindOpCtx(opCtx, rt);
}
if (rt.result.length > 0) {
return step(rt.result[0], rt.result.slice(1).concat(rt.rest), newOpCtx);
} else {
return step(Empty.create(), rt.rest, newOpCtx);
}
} // anon macro definition
else if (head.token.type === parser.Token.Identifier && resolve(head) === 'macro' && rest[0] && rest[0].token.value === '{}') {
return step(AnonMacro.create(rest[0].expose().token.inner), rest.slice(1), opCtx);
} // macro definition
else if (head.token.type === parser.Token.Identifier && resolve(head) === 'macro') {
var nameTokens = [];
if (rest[0] && rest[0].token.type === parser.Token.Delimiter && rest[0].token.value === '()') {
nameTokens = rest[0].expose().token.inner;
} else {
nameTokens.push(rest[0]);
}
if (rest[1] && rest[1].token.type === parser.Token.Delimiter) {
return step(Macro.create(nameTokens, rest[1].expose().token.inner), rest.slice(2), opCtx);
} else {
throwSyntaxError('enforest', 'Macro declaration must include body', rest[1]);
}
} // operator definition
// unaryop (neg) 1 { macro { rule { $op:expr } => { $op } } }
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 === '{}') {
var trans = enforest(rest[2].expose().token.inner, context);
return step(OperatorDefinition.create('unary', rest[0].expose().token.inner, rest[1], null, trans.result.body), rest.slice(3), opCtx);
} // operator definition
// binaryop (neg) 1 left { macro { rule { $op:expr } => { $op } } }
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 === '{}') {
var trans = enforest(rest[3].expose().token.inner, context);
return step(OperatorDefinition.create('binary', rest[0].expose().token.inner, rest[1], rest[2], trans.result.body), rest.slice(4), opCtx);
} // module definition
else if (unwrapSyntax(head) === 'module' && rest[0] && rest[0].token.value === '{}') {
return step(Module.create(rest[0], []), rest.slice(1), opCtx);
} // function definition
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 === '{}') {
rest[1].token.inner = rest[1].expose().token.inner;
rest[2].token.inner = rest[2].expose().token.inner;
return step(NamedFun.create(head, null, rest[0], rest[1], rest[2]), rest.slice(3), opCtx);
} // generator function definition
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 === '{}') {
rest[2].token.inner = rest[2].expose().token.inner;
rest[3].token.inner = rest[3].expose().token.inner;
return step(NamedFun.create(head, rest[0], rest[1], rest[2], rest[3]), rest.slice(4), opCtx);
} // anonymous function definition
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 === '{}') {
rest[0].token.inner = rest[0].expose().token.inner;
rest[1].token.inner = rest[1].expose().token.inner;
return step(AnonFun.create(head, null, rest[0], rest[1]), rest.slice(2), opCtx);
} // anonymous generator function definition
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 === '{}') {
rest[1].token.inner = rest[1].expose().token.inner;
rest[2].token.inner = rest[2].expose().token.inner;
return step(AnonFun.create(head, rest[0], rest[1], rest[2]), rest.slice(3), opCtx);
} // arrow function
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 === '{}') {
return step(ArrowFun.create(head, rest[0], rest[1]), rest.slice(2), opCtx);
} // catch statement
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 === '{}') {
rest[0].token.inner = rest[0].expose().token.inner;
rest[1].token.inner = rest[1].expose().token.inner;
return step(CatchClause.create(head, rest[0], rest[1]), rest.slice(2), opCtx);
} // this expression
else if (head.token.type === parser.Token.Keyword && unwrapSyntax(head) === 'this') {
return step(ThisExpression.create(head), rest, opCtx);
} // literal
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) {
return step(Lit.create(head), rest, opCtx);
} // export
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 === '()')) {
// Consume optional semicolon
if (unwrapSyntax(rest[1]) === ';') {
rest.splice(1, 1);
}
return step(Export.create(rest[0]), rest.slice(1), opCtx);
} // identifier
else if (head.token.type === parser.Token.Identifier) {
return step(Id.create(head), rest, opCtx);
} // punctuator
else if (head.token.type === parser.Token.Punctuator) {
return step(Punc.create(head), rest, opCtx);
} else if (head.token.type === parser.Token.Keyword && unwrapSyntax(head) === 'with') {
throwSyntaxError('enforest', 'with is not supported in sweet.js', head);
} // keyword
else if (head.token.type === parser.Token.Keyword) {
return step(Keyword.create(head), rest, opCtx);
} // Delimiter
else if (head.token.type === parser.Token.Delimiter) {
return step(Delimiter.create(head.expose()), rest, opCtx);
} else if (head.token.type === parser.Token.Template) {
return step(Template.create(head), rest, opCtx);
} // end of file
else if (head.token.type === parser.Token.EOF) {
assert(rest.length === 0, 'nothing should be after an EOF');
return step(EOF.create(head), [], opCtx);
} else {
// todo: are we missing cases?
assert(false, 'not implemented');
}
}
// Potentially an infix macro
// This should only be invoked on runtime syntax terms
if (!head.isMacro && !head.isLetMacro && !head.isAnonMacro && !head.isOperatorDefinition && rest.length && nameInEnv(rest[0], rest.slice(1), context.env) && getMacroInEnv(rest[0], rest.slice(1), context.env).isOp === false) {
var infLeftTerm = opCtx.prevTerms[0] && opCtx.prevTerms[0].isPartial ? opCtx.prevTerms[0] : null;
var infTerm = PartialExpression.create(head.destruct(), infLeftTerm, function () {
return step(head, [], opCtx);
});
var infPrevStx = tagWithTerm(infTerm, head.destruct()).reverse().concat(opCtx.prevStx);
var infPrevTerms = [infTerm].concat(opCtx.prevTerms);
var infRes = expandMacro(rest, context, {
prevStx: infPrevStx,
prevTerms: infPrevTerms
});
if (infRes.prevTerms && infRes.prevTerms.length < infPrevTerms.length) {
var infOpCtx = rewindOpCtx(opCtx, infRes);
return step(infRes.result[0], infRes.result.slice(1).concat(infRes.rest), infOpCtx);
} else {
return step(head, infRes.result.concat(infRes.rest), opCtx);
}
}
// done with current step so combine and continue on
var combResult = opCtx.combine(head);
if (opCtx.stack.length === 0) {
return {
result: combResult.term,
rest: rest,
prevStx: combResult.prevStx,
prevTerms: combResult.prevTerms
};
} else {
return step(combResult.term, rest, opCtx.stack[0]);
}
}
return step(toks[0], toks.slice(1), {
combine: function (t) {
return {
term: t,
prevStx: prevStx,
prevTerms: prevTerms
};
},
prec: 0,
stack: [],
op: null,
prevStx: prevStx,
prevTerms: prevTerms
});
}
function rewindOpCtx(opCtx, res) {
// If we've consumed all pending operators, we can just start over.
// It's important that we always thread the new prevStx and prevTerms
// through, otherwise the old ones will still persist.
if (!res.prevTerms.length || !res.prevTerms[0].isPartial) {
return _.extend({}, opCtx, {
combine: function (t) {
return {
term: t,
prevStx: res.prevStx,
prevTerms: res.prevTerms
};
},
prec: 0,
op: null,
stack: [],
prevStx: res.prevStx,
prevTerms: res.prevTerms
});
}
// To rewind, we need to find the first (previous) pending operator. It
// acts as a marker in the opCtx to let us know how far we need to go
// back.
var op = null;
for (var i = 0; i < res.prevTerms.length; i++) {
if (!res.prevTerms[i].isPartial) {
break;
}
if (res.prevTerms[i].isPartialOperation) {
op = res.prevTerms[i];
break;
}
}
// If the op matches the current opCtx, we don't need to rewind
// anything, but we still need to persist the prevStx and prevTerms.
if (opCtx.op === op) {
return _.extend({}, opCtx, {
prevStx: res.prevStx,
prevTerms: res.prevTerms
});
}
for (var i = 0; i < opCtx.stack.length; i++) {
if (opCtx.stack[i].op === op) {
return _.extend({}, opCtx.stack[i], {
prevStx: res.prevStx,
prevTerms: res.prevTerms
});
}
}
assert(false, 'Rewind failed.');
}
function get_expression(stx, context) {
if (stx[0].term) {
for (var termLen = 1; termLen < stx.length; termLen++) {
if (stx[termLen].term !== stx[0].term) {
break;
}
}
// Guard the termLen because we can have a multi-token term that
// we don't want to split. TODO: is there something we can do to
// get around this safely?
if (stx[0].term.isPartialExpression && termLen === stx[0].term.stx.length) {
var expr = stx[0].term.combine().result;
for (var i = 1, term = stx[0].term; i < stx.length; i++) {
if (stx[i].term !== term) {
if (term && term.isPartial) {
term = term.left;
i--;
} else {
break;
}
}
}
return {
result: expr,
rest: stx.slice(i)
};
} else if (stx[0].term.isExpr) {
return {
result: stx[0].term,
rest: stx.slice(termLen)
};
} else {
return {
result: null,
rest: stx
};
}
}
var res = enforest(stx, context);
if (!res.result || !res.result.isExpr) {
return {
result: null,
rest: stx
};
}
return res;
}
function tagWithTerm(term, stx) {
return stx.map(function (s) {
var src = s.token;
var keys = Object.keys(src);
var newtok = {};
for (var i = 0, len = keys.length, key; i < len; i++) {
key = keys[i];
newtok[key] = src[key];
}
s = syntaxFromToken(newtok, s);
s.term = term;
return s;
});
}
// mark each syntax object in the pattern environment,
// mutating the environment
function applyMarkToPatternEnv(newMark, env) {
/*
Takes a `match` object:
{
level: ,
match: [ or ]
}
where the match property is an array of syntax objects at the bottom (0) level.
Does a depth-first search and applys the mark to each syntax object.
*/
function dfs(match) {
if (match.level === 0) {
// replace the match property with the marked syntax
match.match = _.map(match.match, function (stx) {
return stx.mark(newMark);
});
} else {
_.each(match.match, function (match$2) {
dfs(match$2);
});
}
}
_.keys(env).forEach(function (key) {
dfs(env[key]);
});
}
// given the syntax for a macro, produce a macro transformer
// (Macro) -> (([...CSyntax]) -> ReadTree)
function loadMacroDef(body, context) {
// raw function primitive form
if (!(body[0] && body[0].token.type === parser.Token.Keyword && body[0].token.value === 'function')) {
throwSyntaxError('load macro', 'Primitive macro form must contain a function for the macro body', body);
}
var stub = parser.read('()');
stub[0].token.inner = body;
var expanded = expand(stub, context);
expanded = expanded[0].destruct().concat(expanded[1].eof);
var flattend = flatten(expanded);
var bodyCode = codegen.generate(parser.parse(flattend));
var macroFn = scopedEval(bodyCode, {
makeValue: syn.makeValue,
makeRegex: syn.makeRegex,
makeIdent: syn.makeIdent,
makeKeyword: syn.makeKeyword,
makePunc: syn.makePunc,
makeDelim: syn.makeDelim,
filename: context.filename,
require: function (id) {
if (context.requireModule) {
return context.requireModule(id, context.filename);
}
return require(id);
},
getExpr: function (stx) {
var r;
if (stx.length === 0) {
return {
success: false,
result: [],
rest: []
};
}
r = get_expression(stx, context);
return {
success: r.result !== null,
result: r.result === null ? [] : r.result.destruct(),
rest: r.rest
};
},
getIdent: function (stx) {
if (stx[0] && stx[0].token.type === parser.Token.Identifier) {
return {
success: true,
result: [stx[0]],
rest: stx.slice(1)
};
}
return {
success: false,
result: [],
rest: stx
};
},
getLit: function (stx) {
if (stx[0] && patternModule.typeIsLiteral(stx[0].token.type)) {
return {
success: true,
result: [stx[0]],
rest: stx.slice(1)
};
}
return {
success: false,
result: [],
rest: stx
};
},
unwrapSyntax: syn.unwrapSyntax,
throwSyntaxError: throwSyntaxError,
throwSyntaxCaseError: throwSyntaxCaseError,
prettyPrint: syn.prettyPrint,
parser: parser,
__fresh: fresh,
_: _,
patternModule: patternModule,
getPattern: function (id) {
return context.patternMap.get(id);
},
getTemplate: function (id) {
return syn.cloneSyntaxArray(context.templateMap.get(id));
},
applyMarkToPatternEnv: applyMarkToPatternEnv,
mergeMatches: function (newMatch, oldMatch) {
newMatch.patternEnv = _.extend({}, oldMatch.patternEnv, newMatch.patternEnv);
return newMatch;
}
});
return macroFn;
}
// similar to `parse1` in the honu paper
// ([Syntax], Map) -> {terms: [TermTree], env: Map}
function expandToTermTree(stx, context) {
assert(context, 'expander context is required');
var f, head, prevStx, restStx, prevTerms, macroDefinition;
var rest = stx;
while (rest.length > 0) {
assert(rest[0].token, 'expecting a syntax object');
f = enforest(rest, context, prevStx, prevTerms);
// head :: TermTree
head = f.result;
// rest :: [Syntax]
rest = f.rest;
if (!head) {
// no head means the expansions stopped prematurely (for stepping)
restStx = rest;
break;
}
if (head.isMacro && expandCount < maxExpands) {
// load the macro definition into the environment and continue expanding
macroDefinition = loadMacroDef(head.body, context);
var name = head.name.map(unwrapSyntax).join('');
var nameStx = syn.makeIdent(name, head.name[0]);
addToDefinitionCtx([nameStx], context.defscope, false, context.paramscope);
context.env.names.set(name, true);
context.env.set(resolve(nameStx), {
fn: macroDefinition,
isOp: false,
builtin: builtinMode,
fullName: head.name
});
continue;
}
if (head.isLetMacro && expandCount < maxExpands) {
// load the macro definition into the environment and continue expanding
macroDefinition = loadMacroDef(head.body, context);
var freshName = fresh();
var name = head.name.map(unwrapSyntax).join('');
var nameStx = syn.makeIdent(name, head.name[0]);
var renamedName = nameStx.rename(nameStx, freshName);
rest = _.map(rest, function (stx$2) {
return stx$2.rename(nameStx, freshName);
});
context.env.names.set(name, true);
context.env.set(resolve(renamedName), {
fn: macroDefinition,
isOp: false,
builtin: builtinMode,
fullName: head.name
});
continue;
}
if (head.isOperatorDefinition) {
var opDefinition = loadMacroDef(head.body, context);
var name = head.name.map(unwrapSyntax).join('');
var nameStx = syn.makeIdent(name, head.name[0]);
addToDefinitionCtx([nameStx], context.defscope, false, context.paramscope);
var resolvedName = resolve(nameStx);
var opObj = context.env.get(resolvedName);
if (!opObj) {
opObj = {
isOp: true,
builtin: builtinMode,
fullName: head.name
};
}
assert(head.type === 'binary' || head.type === 'unary', 'operator must either be binary or unary');
opObj[head.type] = {
fn: opDefinition,
prec: head.prec.token.value,
assoc: head.assoc ? head.assoc.token.value : null
};
context.env.names.set(name, true);
context.env.set(resolvedName, opObj);
continue;
}
// We build the newPrevTerms/Stx here (instead of at the beginning) so
// that macro definitions don't get added to it.
var destructed = tagWithTerm(head, f.result.destruct());
prevTerms = [head].concat(f.prevTerms);
prevStx = destructed.reverse().concat(f.prevStx);
if (head.isNamedFun) {
addToDefinitionCtx([head.name], context.defscope, true, context.paramscope);
}
if (head.isVariableStatement || head.isLetStatement || head.isConstStatement) {
addToDefinitionCtx(_.map(head.decls, function (decl) {
return decl.ident;
}), context.defscope, true, context.paramscope);
}
if (head.isBlock && head.body.isDelimiter) {
head.body.delim.token.inner.forEach(function (term) {
if (term.isVariableStatement) {
addToDefinitionCtx(_.map(term.decls, function (decl) {
return decl.ident;
}), context.defscope, true, context.paramscope);
}
});
}
if (head.isDelimiter) {
head.delim.token.inner.forEach(function (term) {
if (term.isVariableStatement) {
addToDefinitionCtx(_.map(term.decls, function (decl) {
return decl.ident;
}), context.defscope, true, context.paramscope);
}
});
}
if (head.isForStatement) {
head.cond.expose();
var forCond = head.cond.token.inner;
if (forCond[0] && resolve(forCond[0]) === 'let' && forCond[1] && forCond[1].token.type === parser.Token.Identifier) {
var letNew = fresh();
var letId = forCond[1];
forCond = forCond.map(function (stx$2) {
return stx$2.rename(letId, letNew);
});
// hack: we want to do the let renaming here, not
// in the expansion of `for (...)` so just remove the `let`
// keyword
head.cond.token.inner = expand([forCond[0]], context).concat(expand(forCond.slice(1), context));
// nice and easy case: `for (...) { ... }`
if (rest[0] && rest[0].token.value === '{}') {
rest[0] = rest[0].rename(letId, letNew);
} else {
// need to deal with things like `for (...) if (...) log(...)`
var bodyEnf = enforest(rest, context);
var bodyDestructed = bodyEnf.result.destruct();
var renamedBodyTerm = bodyEnf.result.rename(letId, letNew);
tagWithTerm(renamedBodyTerm, bodyDestructed);
rest = bodyEnf.rest;
prevStx = bodyDestructed.reverse().concat(prevStx);
prevTerms = [renamedBodyTerm].concat(prevTerms);
}
} else {
head.cond.token.inner = expand(head.cond.token.inner, context);
}
}
}
return {
terms: prevTerms ? prevTerms.reverse() : [],
restStx: restStx,
context: context
};
}
function addToDefinitionCtx(idents, defscope, skipRep, paramscope) {
assert(idents && idents.length > 0, 'expecting some variable identifiers');
// flag for skipping repeats since we reuse this function to place both
// variables declarations (which need to skip redeclarations) and
// macro definitions which don't
skipRep = skipRep || false;
_.chain(idents).filter(function (id) {
if (skipRep) {
/*
When var declarations repeat in the same function scope:
var x = 24;
...
var x = 42;
we just need to use the first renaming and leave the
definition context as is.
*/
var varDeclRep = _.find(defscope, function (def) {
return def.id.token.value === id.token.value && arraysEqual(marksof(def.id.context), marksof(id.context));
});
/*
When var declaration repeat one of the function parameters:
function foo(x) {
var x;
}
we don't need to add the var to the definition context.
*/
var paramDeclRep = _.find(paramscope, function (param) {
return param.token.value === id.token.value && arraysEqual(marksof(param.context), marksof(id.context));
});
return typeof varDeclRep === 'undefined' && typeof paramDeclRep === 'undefined';
}
return true;
}).each(function (id) {
var name = fresh();
defscope.push({
id: id,
name: name
});
});
}
// similar to `parse2` in the honu paper except here we
// don't generate an AST yet
// (TermTree, Map, Map) -> TermTree
function expandTermTreeToFinal(term, context) {
assert(context && context.env, 'environment map is required');
if (term.isArrayLiteral) {
term.array.delim.token.inner = expand(term.array.delim.expose().token.inner, context);
return term;
} else if (term.isBlock) {
term.body.delim.token.inner = expand(term.body.delim.expose().token.inner, context);
return term;
} else if (term.isParenExpression) {
term.args = _.map(term.args, function (arg) {
return expandTermTreeToFinal(arg, context);
});
return term;
} else if (term.isCall) {
term.fun = expandTermTreeToFinal(term.fun, context);
term.args = expandTermTreeToFinal(term.args, context);
return term;
} else if (term.isReturnStatement) {
term.expr = expandTermTreeToFinal(term.expr, context);
return term;
} else if (term.isUnaryOp) {
term.expr = expandTermTreeToFinal(term.expr, context);
return term;
} else if (term.isBinOp || term.isAssignmentExpression) {
term.left = expandTermTreeToFinal(term.left, context);
term.right = expandTermTreeToFinal(term.right, context);
return term;
} else if (term.isObjGet) {
term.left = expandTermTreeToFinal(term.left, context);
term.right.delim.token.inner = expand(term.right.delim.expose().token.inner, context);
return term;
} else if (term.isObjDotGet) {
term.left = expandTermTreeToFinal(term.left, context);
term.right = expandTermTreeToFinal(term.right, context);
return term;
} else if (term.isConditionalExpression) {
term.cond = expandTermTreeToFinal(term.cond, context);
term.tru = expandTermTreeToFinal(term.tru, context);
term.fls = expandTermTreeToFinal(term.fls, context);
return term;
} else if (term.isVariableDeclaration) {
if (term.init) {
term.init = expandTermTreeToFinal(term.init, context);
}
return term;
} else if (term.isVariableStatement) {
term.decls = _.map(term.decls, function (decl) {
return expandTermTreeToFinal(decl, context);
});
return term;
} else if (term.isDelimiter) {
// expand inside the delimiter and then continue on
term.delim.token.inner = expand(term.delim.expose().token.inner, context);
return term;
} else if (term.isNamedFun || term.isAnonFun || term.isCatchClause || term.isArrowFun || term.isModule) {
// function definitions need a bunch of hygiene logic
// push down a fresh definition context
var newDef = [];
var paramSingleIdent = term.params && term.params.token.type === parser.Token.Identifier;
var params;
if (term.params && term.params.token.type === parser.Token.Delimiter) {
params = term.params.expose();
} else if (paramSingleIdent) {
params = term.params;
} else {
params = syn.makeDelim('()', [], null);
}
var bodies;
if (Array.isArray(term.body)) {
bodies = syn.makeDelim('{}', term.body, null);
} else {
bodies = term.body;
}
bodies = bodies.addDefCtx(newDef);
var paramNames = _.map(getParamIdentifiers(params), function (param) {
var freshName = fresh();
return {
freshName: freshName,
originalParam: param,
renamedParam: param.rename(param, freshName)
};
});
var bodyContext = makeExpanderContext(_.defaults({
defscope: newDef,
paramscope: paramNames.map(function (p) {
return p.renamedParam;
})
}, context));
// rename the function body for each of the parameters
var renamedBody = _.reduce(paramNames, function (accBody, p) {
return accBody.rename(p.originalParam, p.freshName);
}, bodies);
renamedBody = renamedBody.expose();
var expandedResult = expandToTermTree(renamedBody.token.inner, bodyContext);
var bodyTerms = expandedResult.terms;
if (expandedResult.restStx) {
// The expansion was halted prematurely. Just stop and
// return what we have so far, along with the rest of the syntax
renamedBody.token.inner = expandedResult.terms.concat(expandedResult.restStx);
if (Array.isArray(term.body)) {
term.body = renamedBody.token.inner;
} else {
term.body = renamedBody;
}
return term;
}
var renamedParams = _.map(paramNames, function (p) {
return p.renamedParam;
});
var flatArgs;
if (paramSingleIdent) {
flatArgs = renamedParams[0];
} else {
var puncCtx = term.params || null;
flatArgs = syn.makeDelim('()', joinSyntax(renamedParams, syn.makePunc(',', puncCtx)), puncCtx);
}
var expandedArgs = expand([flatArgs], bodyContext);
assert(expandedArgs.length === 1, 'should only get back one result');
// stitch up the function with all the renamings
if (term.params) {
term.params = expandedArgs[0];
}
bodyTerms = _.map(bodyTerms, function (bodyTerm) {
// add the definition context to the result of
// expansion (this makes sure that syntax objects
// introduced by expansion have the def context)
if (bodyTerm.isBlock) {
// we need to expand blocks before adding the defctx since
// blocks defer macro expansion.
var blockFinal = expandTermTreeToFinal(bodyTerm, expandedResult.context);
return blockFinal.addDefCtx(newDef);
} else {
var termWithCtx = bodyTerm.addDefCtx(newDef);
// finish expansion
return expandTermTreeToFinal(termWithCtx, expandedResult.context);
}
});
if (term.isModule) {
bodyTerms = _.filter(bodyTerms, function (bodyTerm) {
if (bodyTerm.isExport) {
term.exports.push(bodyTerm);
return false;
} else {
return true;
}
});
}
renamedBody.token.inner = bodyTerms;
if (Array.isArray(term.body)) {
term.body = renamedBody.token.inner;
} else {
term.body = renamedBody;
}
// and continue expand the rest
return term;
}
// the term is fine as is
return term;
}
// similar to `parse` in the honu paper
// ([Syntax], Map, Map) -> [TermTree]
function expand(stx, context) {
assert(context, 'must provide an expander context');
var trees = expandToTermTree(stx, context);
var terms = _.map(trees.terms, function (term) {
return expandTermTreeToFinal(term, trees.context);
});
if (trees.restStx) {
terms.push.apply(terms, trees.restStx);
}
return terms;
}
function makeExpanderContext(o) {
o = o || {};
var env = o.env || new StringMap();
if (!env.names) {
env.names = new StringMap();
}
// read-only but can enumerate
return Object.create(Object.prototype, {
filename: {
value: o.filename,
writable: false,
enumerable: true,
configurable: false
},
requireModule: {
value: o.requireModule,
writable: false,
enumerable: true,
configurable: false
},
env: {
value: env,
writable: false,
enumerable: true,
configurable: false
},
defscope: {
value: o.defscope,
writable: false,
enumerable: true,
configurable: false
},
paramscope: {
value: o.paramscope,
writable: false,
enumerable: true,
configurable: false
},
templateMap: {
value: o.templateMap || new StringMap(),
writable: false,
enumerable: true,
configurable: false
},
patternMap: {
value: o.patternMap || new StringMap(),
writable: false,
enumerable: true,
configurable: false
},
mark: {
value: o.mark,
writable: false,
enumerable: true,
configurable: false
}
});
}
function makeTopLevelExpanderContext(options) {
var requireModule = options ? options.requireModule : undefined;
var filename = options && options.filename ? options.filename : '';
return makeExpanderContext({
filename: filename,
requireModule: requireModule
});
}
// a hack to make the top level hygiene work out
function expandTopLevel(stx, moduleContexts, options) {
moduleContexts = moduleContexts || [];
options = options || {};
options.flatten = options.flatten != null ? options.flatten : true;
maxExpands = options.maxExpands || Infinity;
expandCount = 0;
var context = makeTopLevelExpanderContext(options);
var modBody = syn.makeDelim('{}', stx, null);
modBody = _.reduce(moduleContexts, function (acc, mod) {
context.env.extend(mod.env);
context.env.names.extend(mod.env.names);
return loadModuleExports(acc, context.env, mod.exports, mod.env);
}, modBody);
var res = expand([
syn.makeIdent('module', null),
modBody
], context);
res = res[0].destruct();
res = res[0].token.inner;
return options.flatten ? flatten(res) : res;
}
function expandModule(stx, moduleContexts, options) {
moduleContexts = moduleContexts || [];
maxExpands = Infinity;
expandCount = 0;
var context = makeTopLevelExpanderContext(options);
var modBody = syn.makeDelim('{}', stx, null);
modBody = _.reduce(moduleContexts, function (acc, mod) {
context.env.extend(mod.env);
context.env.names.extend(mod.env.names);
return loadModuleExports(acc, context.env, mod.exports, mod.env);
}, modBody);
builtinMode = true;
var moduleRes = expand([
syn.makeIdent('module', null),
modBody
], context);
builtinMode = false;
context.exports = _.map(moduleRes[0].exports, function (term) {
var nameStr, name;
if (term.name.token.type === parser.Token.Delimiter) {
nameStr = term.name.token.inner.map(unwrapSyntax).join('');
name = syn.makeIdent(nameStr, term.name);
} else {
name = term.name;
nameStr = unwrapSyntax(name);
}
return {
oldExport: name,
newParam: syn.makeIdent(nameStr, null)
};
});
return context;
}
function loadModuleExports(stx, newEnv, exports$3, oldEnv) {
return _.reduce(exports$3, function (acc, param) {
var newName = fresh();
var transformer = oldEnv.get(resolve(param.oldExport));
if (transformer) {
newEnv.set(resolve(param.newParam.rename(param.newParam, newName)), transformer);
return acc.rename(param.newParam, newName);
} else {
return acc;
}
}, stx);
}
// break delimiter tree structure down to flat array of syntax objects
function flatten(stx) {
return _.reduce(stx, function (acc, stx$2) {
if (stx$2.token.type === parser.Token.Delimiter) {
var exposed = stx$2.expose();
var openParen = syntaxFromToken({
type: parser.Token.Punctuator,
value: stx$2.token.value[0],
range: stx$2.token.startRange,
sm_range: typeof stx$2.token.sm_startRange == 'undefined' ? stx$2.token.startRange : stx$2.token.sm_startRange,
lineNumber: stx$2.token.startLineNumber,
sm_lineNumber: typeof stx$2.token.sm_startLineNumber == 'undefined' ? stx$2.token.startLineNumber : stx$2.token.sm_startLineNumber,
lineStart: stx$2.token.startLineStart,
sm_lineStart: typeof stx$2.token.sm_startLineStart == 'undefined' ? stx$2.token.startLineStart : stx$2.token.sm_startLineStart
}, exposed);
var closeParen = syntaxFromToken({
type: parser.Token.Punctuator,
value: stx$2.token.value[1],
range: stx$2.token.endRange,
sm_range: typeof stx$2.token.sm_endRange == 'undefined' ? stx$2.token.endRange : stx$2.token.sm_endRange,
lineNumber: stx$2.token.endLineNumber,
sm_lineNumber: typeof stx$2.token.sm_endLineNumber == 'undefined' ? stx$2.token.endLineNumber : stx$2.token.sm_endLineNumber,
lineStart: stx$2.token.endLineStart,
sm_lineStart: typeof stx$2.token.sm_endLineStart == 'undefined' ? stx$2.token.endLineStart : stx$2.token.sm_endLineStart
}, exposed);
if (stx$2.token.leadingComments) {
openParen.token.leadingComments = stx$2.token.leadingComments;
}
if (stx$2.token.trailingComments) {
openParen.token.trailingComments = stx$2.token.trailingComments;
}
acc.push(openParen);
push.apply(acc, flatten(exposed.token.inner));
acc.push(closeParen);
return acc;
}
stx$2.token.sm_lineNumber = typeof stx$2.token.sm_lineNumber != 'undefined' ? stx$2.token.sm_lineNumber : stx$2.token.lineNumber;
stx$2.token.sm_lineStart = typeof stx$2.token.sm_lineStart != 'undefined' ? stx$2.token.sm_lineStart : stx$2.token.lineStart;
stx$2.token.sm_range = typeof stx$2.token.sm_range != 'undefined' ? stx$2.token.sm_range : stx$2.token.range;
acc.push(stx$2);
return acc;
}, []);
}
exports$2.StringMap = StringMap;
exports$2.enforest = enforest;
exports$2.expand = expandTopLevel;
exports$2.expandModule = expandModule;
exports$2.resolve = resolve;
exports$2.get_expression = get_expression;
exports$2.getName = getName;
exports$2.getMacroInEnv = getMacroInEnv;
exports$2.nameInEnv = nameInEnv;
exports$2.makeExpanderContext = makeExpanderContext;
exports$2.Expr = Expr;
exports$2.VariableStatement = VariableStatement;
exports$2.tokensToSyntax = syn.tokensToSyntax;
exports$2.syntaxToTokens = syn.syntaxToTokens;
}));
//# sourceMappingURL=expander.js.map
================================================
FILE: editor/scripts/jquery.js
================================================
/*!
* jQuery JavaScript Library v2.0.3
* http://jquery.com/
*
* Includes Sizzle.js
* http://sizzlejs.com/
*
* Copyright 2005, 2013 jQuery Foundation, Inc. and other contributors
* Released under the MIT license
* http://jquery.org/license
*
* Date: 2013-07-03T13:30Z
*/
(function( window, undefined ) {
// Can't do this because several apps including ASP.NET trace
// the stack via arguments.caller.callee and Firefox dies if
// you try to trace through "use strict" call chains. (#13335)
// Support: Firefox 18+
//"use strict";
var
// A central reference to the root jQuery(document)
rootjQuery,
// The deferred used on DOM ready
readyList,
// Support: IE9
// For `typeof xmlNode.method` instead of `xmlNode.method !== undefined`
core_strundefined = typeof undefined,
// Use the correct document accordingly with window argument (sandbox)
location = window.location,
document = window.document,
docElem = document.documentElement,
// Map over jQuery in case of overwrite
_jQuery = window.jQuery,
// Map over the $ in case of overwrite
_$ = window.$,
// [[Class]] -> type pairs
class2type = {},
// List of deleted data cache ids, so we can reuse them
core_deletedIds = [],
core_version = "2.0.3",
// Save a reference to some core methods
core_concat = core_deletedIds.concat,
core_push = core_deletedIds.push,
core_slice = core_deletedIds.slice,
core_indexOf = core_deletedIds.indexOf,
core_toString = class2type.toString,
core_hasOwn = class2type.hasOwnProperty,
core_trim = core_version.trim,
// Define a local copy of jQuery
jQuery = function( selector, context ) {
// The jQuery object is actually just the init constructor 'enhanced'
return new jQuery.fn.init( selector, context, rootjQuery );
},
// Used for matching numbers
core_pnum = /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,
// Used for splitting on whitespace
core_rnotwhite = /\S+/g,
// A simple way to check for HTML strings
// Prioritize #id over to avoid XSS via location.hash (#9521)
// Strict HTML recognition (#11290: must start with <)
rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,
// Match a standalone tag
rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>|)$/,
// Matches dashed string for camelizing
rmsPrefix = /^-ms-/,
rdashAlpha = /-([\da-z])/gi,
// Used by jQuery.camelCase as callback to replace()
fcamelCase = function( all, letter ) {
return letter.toUpperCase();
},
// The ready event handler and self cleanup method
completed = function() {
document.removeEventListener( "DOMContentLoaded", completed, false );
window.removeEventListener( "load", completed, false );
jQuery.ready();
};
jQuery.fn = jQuery.prototype = {
// The current version of jQuery being used
jquery: core_version,
constructor: jQuery,
init: function( selector, context, rootjQuery ) {
var match, elem;
// HANDLE: $(""), $(null), $(undefined), $(false)
if ( !selector ) {
return this;
}
// Handle HTML strings
if ( typeof selector === "string" ) {
if ( selector.charAt(0) === "<" && selector.charAt( selector.length - 1 ) === ">" && selector.length >= 3 ) {
// Assume that strings that start and end with <> are HTML and skip the regex check
match = [ null, selector, null ];
} else {
match = rquickExpr.exec( selector );
}
// Match html or make sure no context is specified for #id
if ( match && (match[1] || !context) ) {
// HANDLE: $(html) -> $(array)
if ( match[1] ) {
context = context instanceof jQuery ? context[0] : context;
// scripts is true for back-compat
jQuery.merge( this, jQuery.parseHTML(
match[1],
context && context.nodeType ? context.ownerDocument || context : document,
true
) );
// HANDLE: $(html, props)
if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) {
for ( match in context ) {
// Properties of context are called as methods if possible
if ( jQuery.isFunction( this[ match ] ) ) {
this[ match ]( context[ match ] );
// ...and otherwise set as attributes
} else {
this.attr( match, context[ match ] );
}
}
}
return this;
// HANDLE: $(#id)
} else {
elem = document.getElementById( match[2] );
// Check parentNode to catch when Blackberry 4.6 returns
// nodes that are no longer in the document #6963
if ( elem && elem.parentNode ) {
// Inject the element directly into the jQuery object
this.length = 1;
this[0] = elem;
}
this.context = document;
this.selector = selector;
return this;
}
// HANDLE: $(expr, $(...))
} else if ( !context || context.jquery ) {
return ( context || rootjQuery ).find( selector );
// HANDLE: $(expr, context)
// (which is just equivalent to: $(context).find(expr)
} else {
return this.constructor( context ).find( selector );
}
// HANDLE: $(DOMElement)
} else if ( selector.nodeType ) {
this.context = this[0] = selector;
this.length = 1;
return this;
// HANDLE: $(function)
// Shortcut for document ready
} else if ( jQuery.isFunction( selector ) ) {
return rootjQuery.ready( selector );
}
if ( selector.selector !== undefined ) {
this.selector = selector.selector;
this.context = selector.context;
}
return jQuery.makeArray( selector, this );
},
// Start with an empty selector
selector: "",
// The default length of a jQuery object is 0
length: 0,
toArray: function() {
return core_slice.call( this );
},
// Get the Nth element in the matched element set OR
// Get the whole matched element set as a clean array
get: function( num ) {
return num == null ?
// Return a 'clean' array
this.toArray() :
// Return just the object
( num < 0 ? this[ this.length + num ] : this[ num ] );
},
// Take an array of elements and push it onto the stack
// (returning the new matched element set)
pushStack: function( elems ) {
// Build a new jQuery matched element set
var ret = jQuery.merge( this.constructor(), elems );
// Add the old object onto the stack (as a reference)
ret.prevObject = this;
ret.context = this.context;
// Return the newly-formed element set
return ret;
},
// Execute a callback for every element in the matched set.
// (You can seed the arguments with an array of args, but this is
// only used internally.)
each: function( callback, args ) {
return jQuery.each( this, callback, args );
},
ready: function( fn ) {
// Add the callback
jQuery.ready.promise().done( fn );
return this;
},
slice: function() {
return this.pushStack( core_slice.apply( this, arguments ) );
},
first: function() {
return this.eq( 0 );
},
last: function() {
return this.eq( -1 );
},
eq: function( i ) {
var len = this.length,
j = +i + ( i < 0 ? len : 0 );
return this.pushStack( j >= 0 && j < len ? [ this[j] ] : [] );
},
map: function( callback ) {
return this.pushStack( jQuery.map(this, function( elem, i ) {
return callback.call( elem, i, elem );
}));
},
end: function() {
return this.prevObject || this.constructor(null);
},
// For internal use only.
// Behaves like an Array's method, not like a jQuery method.
push: core_push,
sort: [].sort,
splice: [].splice
};
// Give the init function the jQuery prototype for later instantiation
jQuery.fn.init.prototype = jQuery.fn;
jQuery.extend = jQuery.fn.extend = function() {
var options, name, src, copy, copyIsArray, clone,
target = arguments[0] || {},
i = 1,
length = arguments.length,
deep = false;
// Handle a deep copy situation
if ( typeof target === "boolean" ) {
deep = target;
target = arguments[1] || {};
// skip the boolean and the target
i = 2;
}
// Handle case when target is a string or something (possible in deep copy)
if ( typeof target !== "object" && !jQuery.isFunction(target) ) {
target = {};
}
// extend jQuery itself if only one argument is passed
if ( length === i ) {
target = this;
--i;
}
for ( ; i < length; i++ ) {
// Only deal with non-null/undefined values
if ( (options = arguments[ i ]) != null ) {
// Extend the base object
for ( name in options ) {
src = target[ name ];
copy = options[ name ];
// Prevent never-ending loop
if ( target === copy ) {
continue;
}
// Recurse if we're merging plain objects or arrays
if ( deep && copy && ( jQuery.isPlainObject(copy) || (copyIsArray = jQuery.isArray(copy)) ) ) {
if ( copyIsArray ) {
copyIsArray = false;
clone = src && jQuery.isArray(src) ? src : [];
} else {
clone = src && jQuery.isPlainObject(src) ? src : {};
}
// Never move original objects, clone them
target[ name ] = jQuery.extend( deep, clone, copy );
// Don't bring in undefined values
} else if ( copy !== undefined ) {
target[ name ] = copy;
}
}
}
}
// Return the modified object
return target;
};
jQuery.extend({
// Unique for each copy of jQuery on the page
expando: "jQuery" + ( core_version + Math.random() ).replace( /\D/g, "" ),
noConflict: function( deep ) {
if ( window.$ === jQuery ) {
window.$ = _$;
}
if ( deep && window.jQuery === jQuery ) {
window.jQuery = _jQuery;
}
return jQuery;
},
// Is the DOM ready to be used? Set to true once it occurs.
isReady: false,
// A counter to track how many items to wait for before
// the ready event fires. See #6781
readyWait: 1,
// Hold (or release) the ready event
holdReady: function( hold ) {
if ( hold ) {
jQuery.readyWait++;
} else {
jQuery.ready( true );
}
},
// Handle when the DOM is ready
ready: function( wait ) {
// Abort if there are pending holds or we're already ready
if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
return;
}
// Remember that the DOM is ready
jQuery.isReady = true;
// If a normal DOM Ready event fired, decrement, and wait if need be
if ( wait !== true && --jQuery.readyWait > 0 ) {
return;
}
// If there are functions bound, to execute
readyList.resolveWith( document, [ jQuery ] );
// Trigger any bound ready events
if ( jQuery.fn.trigger ) {
jQuery( document ).trigger("ready").off("ready");
}
},
// See test/unit/core.js for details concerning isFunction.
// Since version 1.3, DOM methods and functions like alert
// aren't supported. They return false on IE (#2968).
isFunction: function( obj ) {
return jQuery.type(obj) === "function";
},
isArray: Array.isArray,
isWindow: function( obj ) {
return obj != null && obj === obj.window;
},
isNumeric: function( obj ) {
return !isNaN( parseFloat(obj) ) && isFinite( obj );
},
type: function( obj ) {
if ( obj == null ) {
return String( obj );
}
// Support: Safari <= 5.1 (functionish RegExp)
return typeof obj === "object" || typeof obj === "function" ?
class2type[ core_toString.call(obj) ] || "object" :
typeof obj;
},
isPlainObject: function( obj ) {
// Not plain objects:
// - Any object or value whose internal [[Class]] property is not "[object Object]"
// - DOM nodes
// - window
if ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
return false;
}
// Support: Firefox <20
// The try/catch suppresses exceptions thrown when attempting to access
// the "constructor" property of certain host objects, ie. |window.location|
// https://bugzilla.mozilla.org/show_bug.cgi?id=814622
try {
if ( obj.constructor &&
!core_hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) {
return false;
}
} catch ( e ) {
return false;
}
// If the function hasn't returned already, we're confident that
// |obj| is a plain object, created by {} or constructed with new Object
return true;
},
isEmptyObject: function( obj ) {
var name;
for ( name in obj ) {
return false;
}
return true;
},
error: function( msg ) {
throw new Error( msg );
},
// data: string of html
// context (optional): If specified, the fragment will be created in this context, defaults to document
// keepScripts (optional): If true, will include scripts passed in the html string
parseHTML: function( data, context, keepScripts ) {
if ( !data || typeof data !== "string" ) {
return null;
}
if ( typeof context === "boolean" ) {
keepScripts = context;
context = false;
}
context = context || document;
var parsed = rsingleTag.exec( data ),
scripts = !keepScripts && [];
// Single tag
if ( parsed ) {
return [ context.createElement( parsed[1] ) ];
}
parsed = jQuery.buildFragment( [ data ], context, scripts );
if ( scripts ) {
jQuery( scripts ).remove();
}
return jQuery.merge( [], parsed.childNodes );
},
parseJSON: JSON.parse,
// Cross-browser xml parsing
parseXML: function( data ) {
var xml, tmp;
if ( !data || typeof data !== "string" ) {
return null;
}
// Support: IE9
try {
tmp = new DOMParser();
xml = tmp.parseFromString( data , "text/xml" );
} catch ( e ) {
xml = undefined;
}
if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
jQuery.error( "Invalid XML: " + data );
}
return xml;
},
noop: function() {},
// Evaluates a script in a global context
globalEval: function( code ) {
var script,
indirect = eval;
code = jQuery.trim( code );
if ( code ) {
// If the code includes a valid, prologue position
// strict mode pragma, execute code by injecting a
// script tag into the document.
if ( code.indexOf("use strict") === 1 ) {
script = document.createElement("script");
script.text = code;
document.head.appendChild( script ).parentNode.removeChild( script );
} else {
// Otherwise, avoid the DOM node creation, insertion
// and removal by using an indirect global eval
indirect( code );
}
}
},
// Convert dashed to camelCase; used by the css and data modules
// Microsoft forgot to hump their vendor prefix (#9572)
camelCase: function( string ) {
return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
},
nodeName: function( elem, name ) {
return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
},
// args is for internal usage only
each: function( obj, callback, args ) {
var value,
i = 0,
length = obj.length,
isArray = isArraylike( obj );
if ( args ) {
if ( isArray ) {
for ( ; i < length; i++ ) {
value = callback.apply( obj[ i ], args );
if ( value === false ) {
break;
}
}
} else {
for ( i in obj ) {
value = callback.apply( obj[ i ], args );
if ( value === false ) {
break;
}
}
}
// A special, fast, case for the most common use of each
} else {
if ( isArray ) {
for ( ; i < length; i++ ) {
value = callback.call( obj[ i ], i, obj[ i ] );
if ( value === false ) {
break;
}
}
} else {
for ( i in obj ) {
value = callback.call( obj[ i ], i, obj[ i ] );
if ( value === false ) {
break;
}
}
}
}
return obj;
},
trim: function( text ) {
return text == null ? "" : core_trim.call( text );
},
// results is for internal usage only
makeArray: function( arr, results ) {
var ret = results || [];
if ( arr != null ) {
if ( isArraylike( Object(arr) ) ) {
jQuery.merge( ret,
typeof arr === "string" ?
[ arr ] : arr
);
} else {
core_push.call( ret, arr );
}
}
return ret;
},
inArray: function( elem, arr, i ) {
return arr == null ? -1 : core_indexOf.call( arr, elem, i );
},
merge: function( first, second ) {
var l = second.length,
i = first.length,
j = 0;
if ( typeof l === "number" ) {
for ( ; j < l; j++ ) {
first[ i++ ] = second[ j ];
}
} else {
while ( second[j] !== undefined ) {
first[ i++ ] = second[ j++ ];
}
}
first.length = i;
return first;
},
grep: function( elems, callback, inv ) {
var retVal,
ret = [],
i = 0,
length = elems.length;
inv = !!inv;
// Go through the array, only saving the items
// that pass the validator function
for ( ; i < length; i++ ) {
retVal = !!callback( elems[ i ], i );
if ( inv !== retVal ) {
ret.push( elems[ i ] );
}
}
return ret;
},
// arg is for internal usage only
map: function( elems, callback, arg ) {
var value,
i = 0,
length = elems.length,
isArray = isArraylike( elems ),
ret = [];
// Go through the array, translating each of the items to their
if ( isArray ) {
for ( ; i < length; i++ ) {
value = callback( elems[ i ], i, arg );
if ( value != null ) {
ret[ ret.length ] = value;
}
}
// Go through every key on the object,
} else {
for ( i in elems ) {
value = callback( elems[ i ], i, arg );
if ( value != null ) {
ret[ ret.length ] = value;
}
}
}
// Flatten any nested arrays
return core_concat.apply( [], ret );
},
// A global GUID counter for objects
guid: 1,
// Bind a function to a context, optionally partially applying any
// arguments.
proxy: function( fn, context ) {
var tmp, args, proxy;
if ( typeof context === "string" ) {
tmp = fn[ context ];
context = fn;
fn = tmp;
}
// Quick check to determine if target is callable, in the spec
// this throws a TypeError, but we will just return undefined.
if ( !jQuery.isFunction( fn ) ) {
return undefined;
}
// Simulated bind
args = core_slice.call( arguments, 2 );
proxy = function() {
return fn.apply( context || this, args.concat( core_slice.call( arguments ) ) );
};
// Set the guid of unique handler to the same of original handler, so it can be removed
proxy.guid = fn.guid = fn.guid || jQuery.guid++;
return proxy;
},
// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
access: function( elems, fn, key, value, chainable, emptyGet, raw ) {
var i = 0,
length = elems.length,
bulk = key == null;
// Sets many values
if ( jQuery.type( key ) === "object" ) {
chainable = true;
for ( i in key ) {
jQuery.access( elems, fn, i, key[i], true, emptyGet, raw );
}
// Sets one value
} else if ( value !== undefined ) {
chainable = true;
if ( !jQuery.isFunction( value ) ) {
raw = true;
}
if ( bulk ) {
// Bulk operations run against the entire set
if ( raw ) {
fn.call( elems, value );
fn = null;
// ...except when executing function values
} else {
bulk = fn;
fn = function( elem, key, value ) {
return bulk.call( jQuery( elem ), value );
};
}
}
if ( fn ) {
for ( ; i < length; i++ ) {
fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );
}
}
}
return chainable ?
elems :
// Gets
bulk ?
fn.call( elems ) :
length ? fn( elems[0], key ) : emptyGet;
},
now: Date.now,
// A method for quickly swapping in/out CSS properties to get correct calculations.
// Note: this method belongs to the css module but it's needed here for the support module.
// If support gets modularized, this method should be moved back to the css module.
swap: function( elem, options, callback, args ) {
var ret, name,
old = {};
// Remember the old values, and insert the new ones
for ( name in options ) {
old[ name ] = elem.style[ name ];
elem.style[ name ] = options[ name ];
}
ret = callback.apply( elem, args || [] );
// Revert the old values
for ( name in options ) {
elem.style[ name ] = old[ name ];
}
return ret;
}
});
jQuery.ready.promise = function( obj ) {
if ( !readyList ) {
readyList = jQuery.Deferred();
// Catch cases where $(document).ready() is called after the browser event has already occurred.
// we once tried to use readyState "interactive" here, but it caused issues like the one
// discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15
if ( document.readyState === "complete" ) {
// Handle it asynchronously to allow scripts the opportunity to delay ready
setTimeout( jQuery.ready );
} else {
// Use the handy event callback
document.addEventListener( "DOMContentLoaded", completed, false );
// A fallback to window.onload, that will always work
window.addEventListener( "load", completed, false );
}
}
return readyList.promise( obj );
};
// Populate the class2type map
jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {
class2type[ "[object " + name + "]" ] = name.toLowerCase();
});
function isArraylike( obj ) {
var length = obj.length,
type = jQuery.type( obj );
if ( jQuery.isWindow( obj ) ) {
return false;
}
if ( obj.nodeType === 1 && length ) {
return true;
}
return type === "array" || type !== "function" &&
( length === 0 ||
typeof length === "number" && length > 0 && ( length - 1 ) in obj );
}
// All jQuery objects should point back to these
rootjQuery = jQuery(document);
/*!
* Sizzle CSS Selector Engine v1.9.4-pre
* http://sizzlejs.com/
*
* Copyright 2013 jQuery Foundation, Inc. and other contributors
* Released under the MIT license
* http://jquery.org/license
*
* Date: 2013-06-03
*/
(function( window, undefined ) {
var i,
support,
cachedruns,
Expr,
getText,
isXML,
compile,
outermostContext,
sortInput,
// Local document vars
setDocument,
document,
docElem,
documentIsHTML,
rbuggyQSA,
rbuggyMatches,
matches,
contains,
// Instance-specific data
expando = "sizzle" + -(new Date()),
preferredDoc = window.document,
dirruns = 0,
done = 0,
classCache = createCache(),
tokenCache = createCache(),
compilerCache = createCache(),
hasDuplicate = false,
sortOrder = function( a, b ) {
if ( a === b ) {
hasDuplicate = true;
return 0;
}
return 0;
},
// General-purpose constants
strundefined = typeof undefined,
MAX_NEGATIVE = 1 << 31,
// Instance methods
hasOwn = ({}).hasOwnProperty,
arr = [],
pop = arr.pop,
push_native = arr.push,
push = arr.push,
slice = arr.slice,
// Use a stripped-down indexOf if we can't use a native one
indexOf = arr.indexOf || function( elem ) {
var i = 0,
len = this.length;
for ( ; i < len; i++ ) {
if ( this[i] === elem ) {
return i;
}
}
return -1;
},
booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
// Regular expressions
// Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace
whitespace = "[\\x20\\t\\r\\n\\f]",
// http://www.w3.org/TR/css3-syntax/#characters
characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
// Loosely modeled on CSS identifier characters
// An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors
// Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
identifier = characterEncoding.replace( "w", "w#" ),
// Acceptable operators http://www.w3.org/TR/selectors/#attribute-selectors
attributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace +
"*(?:([*^$|!~]?=)" + whitespace + "*(?:(['\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]",
// Prefer arguments quoted,
// then not containing pseudos/brackets,
// then attribute selectors/non-parenthetical expressions,
// then anything else
// These preferences are here to reduce the number of selectors
// needing tokenize in the PSEUDO preFilter
pseudos = ":(" + characterEncoding + ")(?:\\(((['\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\\)|)",
// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
rsibling = new RegExp( whitespace + "*[+~]" ),
rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*)" + whitespace + "*\\]", "g" ),
rpseudo = new RegExp( pseudos ),
ridentifier = new RegExp( "^" + identifier + "$" ),
matchExpr = {
"ID": new RegExp( "^#(" + characterEncoding + ")" ),
"CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
"ATTR": new RegExp( "^" + attributes ),
"PSEUDO": new RegExp( "^" + pseudos ),
"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
// For use in libraries implementing .is()
// We use this for POS matching in `select`
"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
},
rnative = /^[^{]+\{\s*\[native \w/,
// Easily-parseable/retrievable ID or TAG or CLASS selectors
rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
rinputs = /^(?:input|select|textarea|button)$/i,
rheader = /^h\d$/i,
rescape = /'|\\/g,
// CSS escapes http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
funescape = function( _, escaped, escapedWhitespace ) {
var high = "0x" + escaped - 0x10000;
// NaN means non-codepoint
// Support: Firefox
// Workaround erroneous numeric interpretation of +"0x"
return high !== high || escapedWhitespace ?
escaped :
// BMP codepoint
high < 0 ?
String.fromCharCode( high + 0x10000 ) :
// Supplemental Plane codepoint (surrogate pair)
String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
};
// Optimize for push.apply( _, NodeList )
try {
push.apply(
(arr = slice.call( preferredDoc.childNodes )),
preferredDoc.childNodes
);
// Support: Android<4.0
// Detect silently failing push.apply
arr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {
push = { apply: arr.length ?
// Leverage slice if possible
function( target, els ) {
push_native.apply( target, slice.call(els) );
} :
// Support: IE<9
// Otherwise append directly
function( target, els ) {
var j = target.length,
i = 0;
// Can't trust NodeList.length
while ( (target[j++] = els[i++]) ) {}
target.length = j - 1;
}
};
}
function Sizzle( selector, context, results, seed ) {
var match, elem, m, nodeType,
// QSA vars
i, groups, old, nid, newContext, newSelector;
if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
setDocument( context );
}
context = context || document;
results = results || [];
if ( !selector || typeof selector !== "string" ) {
return results;
}
if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {
return [];
}
if ( documentIsHTML && !seed ) {
// Shortcuts
if ( (match = rquickExpr.exec( selector )) ) {
// Speed-up: Sizzle("#ID")
if ( (m = match[1]) ) {
if ( nodeType === 9 ) {
elem = context.getElementById( m );
// Check parentNode to catch when Blackberry 4.6 returns
// nodes that are no longer in the document #6963
if ( elem && elem.parentNode ) {
// Handle the case where IE, Opera, and Webkit return items
// by name instead of ID
if ( elem.id === m ) {
results.push( elem );
return results;
}
} else {
return results;
}
} else {
// Context is not a document
if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
contains( context, elem ) && elem.id === m ) {
results.push( elem );
return results;
}
}
// Speed-up: Sizzle("TAG")
} else if ( match[2] ) {
push.apply( results, context.getElementsByTagName( selector ) );
return results;
// Speed-up: Sizzle(".CLASS")
} else if ( (m = match[3]) && support.getElementsByClassName && context.getElementsByClassName ) {
push.apply( results, context.getElementsByClassName( m ) );
return results;
}
}
// QSA path
if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
nid = old = expando;
newContext = context;
newSelector = nodeType === 9 && selector;
// qSA works strangely on Element-rooted queries
// We can work around this by specifying an extra ID on the root
// and working up from there (Thanks to Andrew Dupont for the technique)
// IE 8 doesn't work on object elements
if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
groups = tokenize( selector );
if ( (old = context.getAttribute("id")) ) {
nid = old.replace( rescape, "\\$&" );
} else {
context.setAttribute( "id", nid );
}
nid = "[id='" + nid + "'] ";
i = groups.length;
while ( i-- ) {
groups[i] = nid + toSelector( groups[i] );
}
newContext = rsibling.test( selector ) && context.parentNode || context;
newSelector = groups.join(",");
}
if ( newSelector ) {
try {
push.apply( results,
newContext.querySelectorAll( newSelector )
);
return results;
} catch(qsaError) {
} finally {
if ( !old ) {
context.removeAttribute("id");
}
}
}
}
}
// All others
return select( selector.replace( rtrim, "$1" ), context, results, seed );
}
/**
* Create key-value caches of limited size
* @returns {Function(string, Object)} Returns the Object data after storing it on itself with
* property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
* deleting the oldest entry
*/
function createCache() {
var keys = [];
function cache( key, value ) {
// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
if ( keys.push( key += " " ) > Expr.cacheLength ) {
// Only keep the most recent entries
delete cache[ keys.shift() ];
}
return (cache[ key ] = value);
}
return cache;
}
/**
* Mark a function for special use by Sizzle
* @param {Function} fn The function to mark
*/
function markFunction( fn ) {
fn[ expando ] = true;
return fn;
}
/**
* Support testing using an element
* @param {Function} fn Passed the created div and expects a boolean result
*/
function assert( fn ) {
var div = document.createElement("div");
try {
return !!fn( div );
} catch (e) {
return false;
} finally {
// Remove from its parent by default
if ( div.parentNode ) {
div.parentNode.removeChild( div );
}
// release memory in IE
div = null;
}
}
/**
* Adds the same handler for all of the specified attrs
* @param {String} attrs Pipe-separated list of attributes
* @param {Function} handler The method that will be applied
*/
function addHandle( attrs, handler ) {
var arr = attrs.split("|"),
i = attrs.length;
while ( i-- ) {
Expr.attrHandle[ arr[i] ] = handler;
}
}
/**
* Checks document order of two siblings
* @param {Element} a
* @param {Element} b
* @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
*/
function siblingCheck( a, b ) {
var cur = b && a,
diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
( ~b.sourceIndex || MAX_NEGATIVE ) -
( ~a.sourceIndex || MAX_NEGATIVE );
// Use IE sourceIndex if available on both nodes
if ( diff ) {
return diff;
}
// Check if b follows a
if ( cur ) {
while ( (cur = cur.nextSibling) ) {
if ( cur === b ) {
return -1;
}
}
}
return a ? 1 : -1;
}
/**
* Returns a function to use in pseudos for input types
* @param {String} type
*/
function createInputPseudo( type ) {
return function( elem ) {
var name = elem.nodeName.toLowerCase();
return name === "input" && elem.type === type;
};
}
/**
* Returns a function to use in pseudos for buttons
* @param {String} type
*/
function createButtonPseudo( type ) {
return function( elem ) {
var name = elem.nodeName.toLowerCase();
return (name === "input" || name === "button") && elem.type === type;
};
}
/**
* Returns a function to use in pseudos for positionals
* @param {Function} fn
*/
function createPositionalPseudo( fn ) {
return markFunction(function( argument ) {
argument = +argument;
return markFunction(function( seed, matches ) {
var j,
matchIndexes = fn( [], seed.length, argument ),
i = matchIndexes.length;
// Match elements found at the specified indexes
while ( i-- ) {
if ( seed[ (j = matchIndexes[i]) ] ) {
seed[j] = !(matches[j] = seed[j]);
}
}
});
});
}
/**
* Detect xml
* @param {Element|Object} elem An element or a document
*/
isXML = Sizzle.isXML = function( elem ) {
// documentElement is verified for cases where it doesn't yet exist
// (such as loading iframes in IE - #4833)
var documentElement = elem && (elem.ownerDocument || elem).documentElement;
return documentElement ? documentElement.nodeName !== "HTML" : false;
};
// Expose support vars for convenience
support = Sizzle.support = {};
/**
* Sets document-related variables once based on the current document
* @param {Element|Object} [doc] An element or document object to use to set the document
* @returns {Object} Returns the current document
*/
setDocument = Sizzle.setDocument = function( node ) {
var doc = node ? node.ownerDocument || node : preferredDoc,
parent = doc.defaultView;
// If no document and documentElement is available, return
if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
return document;
}
// Set our document
document = doc;
docElem = doc.documentElement;
// Support tests
documentIsHTML = !isXML( doc );
// Support: IE>8
// If iframe document is assigned to "document" variable and if iframe has been reloaded,
// IE will throw "permission denied" error when accessing "document" variable, see jQuery #13936
// IE6-8 do not support the defaultView property so parent will be undefined
if ( parent && parent.attachEvent && parent !== parent.top ) {
parent.attachEvent( "onbeforeunload", function() {
setDocument();
});
}
/* Attributes
---------------------------------------------------------------------- */
// Support: IE<8
// Verify that getAttribute really returns attributes and not properties (excepting IE8 booleans)
support.attributes = assert(function( div ) {
div.className = "i";
return !div.getAttribute("className");
});
/* getElement(s)By*
---------------------------------------------------------------------- */
// Check if getElementsByTagName("*") returns only elements
support.getElementsByTagName = assert(function( div ) {
div.appendChild( doc.createComment("") );
return !div.getElementsByTagName("*").length;
});
// Check if getElementsByClassName can be trusted
support.getElementsByClassName = assert(function( div ) {
div.innerHTML = "";
// Support: Safari<4
// Catch class over-caching
div.firstChild.className = "i";
// Support: Opera<10
// Catch gEBCN failure to find non-leading classes
return div.getElementsByClassName("i").length === 2;
});
// Support: IE<10
// Check if getElementById returns elements by name
// The broken getElementById methods don't pick up programatically-set names,
// so use a roundabout getElementsByName test
support.getById = assert(function( div ) {
docElem.appendChild( div ).id = expando;
return !doc.getElementsByName || !doc.getElementsByName( expando ).length;
});
// ID find and filter
if ( support.getById ) {
Expr.find["ID"] = function( id, context ) {
if ( typeof context.getElementById !== strundefined && documentIsHTML ) {
var m = context.getElementById( id );
// Check parentNode to catch when Blackberry 4.6 returns
// nodes that are no longer in the document #6963
return m && m.parentNode ? [m] : [];
}
};
Expr.filter["ID"] = function( id ) {
var attrId = id.replace( runescape, funescape );
return function( elem ) {
return elem.getAttribute("id") === attrId;
};
};
} else {
// Support: IE6/7
// getElementById is not reliable as a find shortcut
delete Expr.find["ID"];
Expr.filter["ID"] = function( id ) {
var attrId = id.replace( runescape, funescape );
return function( elem ) {
var node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode("id");
return node && node.value === attrId;
};
};
}
// Tag
Expr.find["TAG"] = support.getElementsByTagName ?
function( tag, context ) {
if ( typeof context.getElementsByTagName !== strundefined ) {
return context.getElementsByTagName( tag );
}
} :
function( tag, context ) {
var elem,
tmp = [],
i = 0,
results = context.getElementsByTagName( tag );
// Filter out possible comments
if ( tag === "*" ) {
while ( (elem = results[i++]) ) {
if ( elem.nodeType === 1 ) {
tmp.push( elem );
}
}
return tmp;
}
return results;
};
// Class
Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
if ( typeof context.getElementsByClassName !== strundefined && documentIsHTML ) {
return context.getElementsByClassName( className );
}
};
/* QSA/matchesSelector
---------------------------------------------------------------------- */
// QSA and matchesSelector support
// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
rbuggyMatches = [];
// qSa(:focus) reports false when true (Chrome 21)
// We allow this because of a bug in IE8/9 that throws an error
// whenever `document.activeElement` is accessed on an iframe
// So, we allow :focus to pass through QSA all the time to avoid the IE error
// See http://bugs.jquery.com/ticket/13378
rbuggyQSA = [];
if ( (support.qsa = rnative.test( doc.querySelectorAll )) ) {
// Build QSA regex
// Regex strategy adopted from Diego Perini
assert(function( div ) {
// Select is set to empty string on purpose
// This is to test IE's treatment of not explicitly
// setting a boolean content attribute,
// since its presence should be enough
// http://bugs.jquery.com/ticket/12359
div.innerHTML = "";
// Support: IE8
// Boolean attributes and "value" are not treated correctly
if ( !div.querySelectorAll("[selected]").length ) {
rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
}
// Webkit/Opera - :checked should return selected option elements
// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
// IE8 throws error here and will not see later tests
if ( !div.querySelectorAll(":checked").length ) {
rbuggyQSA.push(":checked");
}
});
assert(function( div ) {
// Support: Opera 10-12/IE8
// ^= $= *= and empty values
// Should not select anything
// Support: Windows 8 Native Apps
// The type attribute is restricted during .innerHTML assignment
var input = doc.createElement("input");
input.setAttribute( "type", "hidden" );
div.appendChild( input ).setAttribute( "t", "" );
if ( div.querySelectorAll("[t^='']").length ) {
rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
}
// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
// IE8 throws error here and will not see later tests
if ( !div.querySelectorAll(":enabled").length ) {
rbuggyQSA.push( ":enabled", ":disabled" );
}
// Opera 10-11 does not throw on post-comma invalid pseudos
div.querySelectorAll("*,:x");
rbuggyQSA.push(",.*:");
});
}
if ( (support.matchesSelector = rnative.test( (matches = docElem.webkitMatchesSelector ||
docElem.mozMatchesSelector ||
docElem.oMatchesSelector ||
docElem.msMatchesSelector) )) ) {
assert(function( div ) {
// Check to see if it's possible to do matchesSelector
// on a disconnected node (IE 9)
support.disconnectedMatch = matches.call( div, "div" );
// This should fail with an exception
// Gecko does not error, returns false instead
matches.call( div, "[s!='']:x" );
rbuggyMatches.push( "!=", pseudos );
});
}
rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
/* Contains
---------------------------------------------------------------------- */
// Element contains another
// Purposefully does not implement inclusive descendent
// As in, an element does not contain itself
contains = rnative.test( docElem.contains ) || docElem.compareDocumentPosition ?
function( a, b ) {
var adown = a.nodeType === 9 ? a.documentElement : a,
bup = b && b.parentNode;
return a === bup || !!( bup && bup.nodeType === 1 && (
adown.contains ?
adown.contains( bup ) :
a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
));
} :
function( a, b ) {
if ( b ) {
while ( (b = b.parentNode) ) {
if ( b === a ) {
return true;
}
}
}
return false;
};
/* Sorting
---------------------------------------------------------------------- */
// Document order sorting
sortOrder = docElem.compareDocumentPosition ?
function( a, b ) {
// Flag for duplicate removal
if ( a === b ) {
hasDuplicate = true;
return 0;
}
var compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b );
if ( compare ) {
// Disconnected nodes
if ( compare & 1 ||
(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
// Choose the first element that is related to our preferred document
if ( a === doc || contains(preferredDoc, a) ) {
return -1;
}
if ( b === doc || contains(preferredDoc, b) ) {
return 1;
}
// Maintain original order
return sortInput ?
( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) :
0;
}
return compare & 4 ? -1 : 1;
}
// Not directly comparable, sort on existence of method
return a.compareDocumentPosition ? -1 : 1;
} :
function( a, b ) {
var cur,
i = 0,
aup = a.parentNode,
bup = b.parentNode,
ap = [ a ],
bp = [ b ];
// Exit early if the nodes are identical
if ( a === b ) {
hasDuplicate = true;
return 0;
// Parentless nodes are either documents or disconnected
} else if ( !aup || !bup ) {
return a === doc ? -1 :
b === doc ? 1 :
aup ? -1 :
bup ? 1 :
sortInput ?
( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) :
0;
// If the nodes are siblings, we can do a quick check
} else if ( aup === bup ) {
return siblingCheck( a, b );
}
// Otherwise we need full lists of their ancestors for comparison
cur = a;
while ( (cur = cur.parentNode) ) {
ap.unshift( cur );
}
cur = b;
while ( (cur = cur.parentNode) ) {
bp.unshift( cur );
}
// Walk down the tree looking for a discrepancy
while ( ap[i] === bp[i] ) {
i++;
}
return i ?
// Do a sibling check if the nodes have a common ancestor
siblingCheck( ap[i], bp[i] ) :
// Otherwise nodes in our document sort first
ap[i] === preferredDoc ? -1 :
bp[i] === preferredDoc ? 1 :
0;
};
return doc;
};
Sizzle.matches = function( expr, elements ) {
return Sizzle( expr, null, null, elements );
};
Sizzle.matchesSelector = function( elem, expr ) {
// Set document vars if needed
if ( ( elem.ownerDocument || elem ) !== document ) {
setDocument( elem );
}
// Make sure that attribute selectors are quoted
expr = expr.replace( rattributeQuotes, "='$1']" );
if ( support.matchesSelector && documentIsHTML &&
( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
( !rbuggyQSA || !rbuggyQSA.test( expr ) ) ) {
try {
var ret = matches.call( elem, expr );
// IE 9's matchesSelector returns false on disconnected nodes
if ( ret || support.disconnectedMatch ||
// As well, disconnected nodes are said to be in a document
// fragment in IE 9
elem.document && elem.document.nodeType !== 11 ) {
return ret;
}
} catch(e) {}
}
return Sizzle( expr, document, null, [elem] ).length > 0;
};
Sizzle.contains = function( context, elem ) {
// Set document vars if needed
if ( ( context.ownerDocument || context ) !== document ) {
setDocument( context );
}
return contains( context, elem );
};
Sizzle.attr = function( elem, name ) {
// Set document vars if needed
if ( ( elem.ownerDocument || elem ) !== document ) {
setDocument( elem );
}
var fn = Expr.attrHandle[ name.toLowerCase() ],
// Don't get fooled by Object.prototype properties (jQuery #13807)
val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
fn( elem, name, !documentIsHTML ) :
undefined;
return val === undefined ?
support.attributes || !documentIsHTML ?
elem.getAttribute( name ) :
(val = elem.getAttributeNode(name)) && val.specified ?
val.value :
null :
val;
};
Sizzle.error = function( msg ) {
throw new Error( "Syntax error, unrecognized expression: " + msg );
};
/**
* Document sorting and removing duplicates
* @param {ArrayLike} results
*/
Sizzle.uniqueSort = function( results ) {
var elem,
duplicates = [],
j = 0,
i = 0;
// Unless we *know* we can detect duplicates, assume their presence
hasDuplicate = !support.detectDuplicates;
sortInput = !support.sortStable && results.slice( 0 );
results.sort( sortOrder );
if ( hasDuplicate ) {
while ( (elem = results[i++]) ) {
if ( elem === results[ i ] ) {
j = duplicates.push( i );
}
}
while ( j-- ) {
results.splice( duplicates[ j ], 1 );
}
}
return results;
};
/**
* Utility function for retrieving the text value of an array of DOM nodes
* @param {Array|Element} elem
*/
getText = Sizzle.getText = function( elem ) {
var node,
ret = "",
i = 0,
nodeType = elem.nodeType;
if ( !nodeType ) {
// If no nodeType, this is expected to be an array
for ( ; (node = elem[i]); i++ ) {
// Do not traverse comment nodes
ret += getText( node );
}
} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
// Use textContent for elements
// innerText usage removed for consistency of new lines (see #11153)
if ( typeof elem.textContent === "string" ) {
return elem.textContent;
} else {
// Traverse its children
for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
ret += getText( elem );
}
}
} else if ( nodeType === 3 || nodeType === 4 ) {
return elem.nodeValue;
}
// Do not include comment or processing instruction nodes
return ret;
};
Expr = Sizzle.selectors = {
// Can be adjusted by the user
cacheLength: 50,
createPseudo: markFunction,
match: matchExpr,
attrHandle: {},
find: {},
relative: {
">": { dir: "parentNode", first: true },
" ": { dir: "parentNode" },
"+": { dir: "previousSibling", first: true },
"~": { dir: "previousSibling" }
},
preFilter: {
"ATTR": function( match ) {
match[1] = match[1].replace( runescape, funescape );
// Move the given value to match[3] whether quoted or unquoted
match[3] = ( match[4] || match[5] || "" ).replace( runescape, funescape );
if ( match[2] === "~=" ) {
match[3] = " " + match[3] + " ";
}
return match.slice( 0, 4 );
},
"CHILD": function( match ) {
/* matches from matchExpr["CHILD"]
1 type (only|nth|...)
2 what (child|of-type)
3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
4 xn-component of xn+y argument ([+-]?\d*n|)
5 sign of xn-component
6 x of xn-component
7 sign of y-component
8 y of y-component
*/
match[1] = match[1].toLowerCase();
if ( match[1].slice( 0, 3 ) === "nth" ) {
// nth-* requires argument
if ( !match[3] ) {
Sizzle.error( match[0] );
}
// numeric x and y parameters for Expr.filter.CHILD
// remember that false/true cast respectively to 0/1
match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );
// other types prohibit arguments
} else if ( match[3] ) {
Sizzle.error( match[0] );
}
return match;
},
"PSEUDO": function( match ) {
var excess,
unquoted = !match[5] && match[2];
if ( matchExpr["CHILD"].test( match[0] ) ) {
return null;
}
// Accept quoted arguments as-is
if ( match[3] && match[4] !== undefined ) {
match[2] = match[4];
// Strip excess characters from unquoted arguments
} else if ( unquoted && rpseudo.test( unquoted ) &&
// Get excess from tokenize (recursively)
(excess = tokenize( unquoted, true )) &&
// advance to the next closing parenthesis
(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {
// excess is a negative index
match[0] = match[0].slice( 0, excess );
match[2] = unquoted.slice( 0, excess );
}
// Return only captures needed by the pseudo filter method (type and argument)
return match.slice( 0, 3 );
}
},
filter: {
"TAG": function( nodeNameSelector ) {
var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
return nodeNameSelector === "*" ?
function() { return true; } :
function( elem ) {
return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
};
},
"CLASS": function( className ) {
var pattern = classCache[ className + " " ];
return pattern ||
(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
classCache( className, function( elem ) {
return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== strundefined && elem.getAttribute("class") || "" );
});
},
"ATTR": function( name, operator, check ) {
return function( elem ) {
var result = Sizzle.attr( elem, name );
if ( result == null ) {
return operator === "!=";
}
if ( !operator ) {
return true;
}
result += "";
return operator === "=" ? result === check :
operator === "!=" ? result !== check :
operator === "^=" ? check && result.indexOf( check ) === 0 :
operator === "*=" ? check && result.indexOf( check ) > -1 :
operator === "$=" ? check && result.slice( -check.length ) === check :
operator === "~=" ? ( " " + result + " " ).indexOf( check ) > -1 :
operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
false;
};
},
"CHILD": function( type, what, argument, first, last ) {
var simple = type.slice( 0, 3 ) !== "nth",
forward = type.slice( -4 ) !== "last",
ofType = what === "of-type";
return first === 1 && last === 0 ?
// Shortcut for :nth-*(n)
function( elem ) {
return !!elem.parentNode;
} :
function( elem, context, xml ) {
var cache, outerCache, node, diff, nodeIndex, start,
dir = simple !== forward ? "nextSibling" : "previousSibling",
parent = elem.parentNode,
name = ofType && elem.nodeName.toLowerCase(),
useCache = !xml && !ofType;
if ( parent ) {
// :(first|last|only)-(child|of-type)
if ( simple ) {
while ( dir ) {
node = elem;
while ( (node = node[ dir ]) ) {
if ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) {
return false;
}
}
// Reverse direction for :only-* (if we haven't yet done so)
start = dir = type === "only" && !start && "nextSibling";
}
return true;
}
start = [ forward ? parent.firstChild : parent.lastChild ];
// non-xml :nth-child(...) stores cache data on `parent`
if ( forward && useCache ) {
// Seek `elem` from a previously-cached index
outerCache = parent[ expando ] || (parent[ expando ] = {});
cache = outerCache[ type ] || [];
nodeIndex = cache[0] === dirruns && cache[1];
diff = cache[0] === dirruns && cache[2];
node = nodeIndex && parent.childNodes[ nodeIndex ];
while ( (node = ++nodeIndex && node && node[ dir ] ||
// Fallback to seeking `elem` from the start
(diff = nodeIndex = 0) || start.pop()) ) {
// When found, cache indexes on `parent` and break
if ( node.nodeType === 1 && ++diff && node === elem ) {
outerCache[ type ] = [ dirruns, nodeIndex, diff ];
break;
}
}
// Use previously-cached element index if available
} else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {
diff = cache[1];
// xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)
} else {
// Use the same loop as above to seek `elem` from the start
while ( (node = ++nodeIndex && node && node[ dir ] ||
(diff = nodeIndex = 0) || start.pop()) ) {
if ( ( ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1 ) && ++diff ) {
// Cache the index of each encountered element
if ( useCache ) {
(node[ expando ] || (node[ expando ] = {}))[ type ] = [ dirruns, diff ];
}
if ( node === elem ) {
break;
}
}
}
}
// Incorporate the offset, then check against cycle size
diff -= last;
return diff === first || ( diff % first === 0 && diff / first >= 0 );
}
};
},
"PSEUDO": function( pseudo, argument ) {
// pseudo-class names are case-insensitive
// http://www.w3.org/TR/selectors/#pseudo-classes
// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
// Remember that setFilters inherits from pseudos
var args,
fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
Sizzle.error( "unsupported pseudo: " + pseudo );
// The user may use createPseudo to indicate that
// arguments are needed to create the filter function
// just as Sizzle does
if ( fn[ expando ] ) {
return fn( argument );
}
// But maintain support for old signatures
if ( fn.length > 1 ) {
args = [ pseudo, pseudo, "", argument ];
return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
markFunction(function( seed, matches ) {
var idx,
matched = fn( seed, argument ),
i = matched.length;
while ( i-- ) {
idx = indexOf.call( seed, matched[i] );
seed[ idx ] = !( matches[ idx ] = matched[i] );
}
}) :
function( elem ) {
return fn( elem, 0, args );
};
}
return fn;
}
},
pseudos: {
// Potentially complex pseudos
"not": markFunction(function( selector ) {
// Trim the selector passed to compile
// to avoid treating leading and trailing
// spaces as combinators
var input = [],
results = [],
matcher = compile( selector.replace( rtrim, "$1" ) );
return matcher[ expando ] ?
markFunction(function( seed, matches, context, xml ) {
var elem,
unmatched = matcher( seed, null, xml, [] ),
i = seed.length;
// Match elements unmatched by `matcher`
while ( i-- ) {
if ( (elem = unmatched[i]) ) {
seed[i] = !(matches[i] = elem);
}
}
}) :
function( elem, context, xml ) {
input[0] = elem;
matcher( input, null, xml, results );
return !results.pop();
};
}),
"has": markFunction(function( selector ) {
return function( elem ) {
return Sizzle( selector, elem ).length > 0;
};
}),
"contains": markFunction(function( text ) {
return function( elem ) {
return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
};
}),
// "Whether an element is represented by a :lang() selector
// is based solely on the element's language value
// being equal to the identifier C,
// or beginning with the identifier C immediately followed by "-".
// The matching of C against the element's language value is performed case-insensitively.
// The identifier C does not have to be a valid language name."
// http://www.w3.org/TR/selectors/#lang-pseudo
"lang": markFunction( function( lang ) {
// lang value must be a valid identifier
if ( !ridentifier.test(lang || "") ) {
Sizzle.error( "unsupported lang: " + lang );
}
lang = lang.replace( runescape, funescape ).toLowerCase();
return function( elem ) {
var elemLang;
do {
if ( (elemLang = documentIsHTML ?
elem.lang :
elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {
elemLang = elemLang.toLowerCase();
return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
}
} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
return false;
};
}),
// Miscellaneous
"target": function( elem ) {
var hash = window.location && window.location.hash;
return hash && hash.slice( 1 ) === elem.id;
},
"root": function( elem ) {
return elem === docElem;
},
"focus": function( elem ) {
return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
},
// Boolean properties
"enabled": function( elem ) {
return elem.disabled === false;
},
"disabled": function( elem ) {
return elem.disabled === true;
},
"checked": function( elem ) {
// In CSS3, :checked should return both checked and selected elements
// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
var nodeName = elem.nodeName.toLowerCase();
return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
},
"selected": function( elem ) {
// Accessing this property makes selected-by-default
// options in Safari work properly
if ( elem.parentNode ) {
elem.parentNode.selectedIndex;
}
return elem.selected === true;
},
// Contents
"empty": function( elem ) {
// http://www.w3.org/TR/selectors/#empty-pseudo
// :empty is only affected by element nodes and content nodes(including text(3), cdata(4)),
// not comment, processing instructions, or others
// Thanks to Diego Perini for the nodeName shortcut
// Greater than "@" means alpha characters (specifically not starting with "#" or "?")
for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
if ( elem.nodeName > "@" || elem.nodeType === 3 || elem.nodeType === 4 ) {
return false;
}
}
return true;
},
"parent": function( elem ) {
return !Expr.pseudos["empty"]( elem );
},
// Element/input types
"header": function( elem ) {
return rheader.test( elem.nodeName );
},
"input": function( elem ) {
return rinputs.test( elem.nodeName );
},
"button": function( elem ) {
var name = elem.nodeName.toLowerCase();
return name === "input" && elem.type === "button" || name === "button";
},
"text": function( elem ) {
var attr;
// IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc)
// use getAttribute instead to test this case
return elem.nodeName.toLowerCase() === "input" &&
elem.type === "text" &&
( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === elem.type );
},
// Position-in-collection
"first": createPositionalPseudo(function() {
return [ 0 ];
}),
"last": createPositionalPseudo(function( matchIndexes, length ) {
return [ length - 1 ];
}),
"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
return [ argument < 0 ? argument + length : argument ];
}),
"even": createPositionalPseudo(function( matchIndexes, length ) {
var i = 0;
for ( ; i < length; i += 2 ) {
matchIndexes.push( i );
}
return matchIndexes;
}),
"odd": createPositionalPseudo(function( matchIndexes, length ) {
var i = 1;
for ( ; i < length; i += 2 ) {
matchIndexes.push( i );
}
return matchIndexes;
}),
"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
var i = argument < 0 ? argument + length : argument;
for ( ; --i >= 0; ) {
matchIndexes.push( i );
}
return matchIndexes;
}),
"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
var i = argument < 0 ? argument + length : argument;
for ( ; ++i < length; ) {
matchIndexes.push( i );
}
return matchIndexes;
})
}
};
Expr.pseudos["nth"] = Expr.pseudos["eq"];
// Add button/input type pseudos
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
Expr.pseudos[ i ] = createInputPseudo( i );
}
for ( i in { submit: true, reset: true } ) {
Expr.pseudos[ i ] = createButtonPseudo( i );
}
// Easy API for creating new setFilters
function setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();
function tokenize( selector, parseOnly ) {
var matched, match, tokens, type,
soFar, groups, preFilters,
cached = tokenCache[ selector + " " ];
if ( cached ) {
return parseOnly ? 0 : cached.slice( 0 );
}
soFar = selector;
groups = [];
preFilters = Expr.preFilter;
while ( soFar ) {
// Comma and first run
if ( !matched || (match = rcomma.exec( soFar )) ) {
if ( match ) {
// Don't consume trailing commas as valid
soFar = soFar.slice( match[0].length ) || soFar;
}
groups.push( tokens = [] );
}
matched = false;
// Combinators
if ( (match = rcombinators.exec( soFar )) ) {
matched = match.shift();
tokens.push({
value: matched,
// Cast descendant combinators to space
type: match[0].replace( rtrim, " " )
});
soFar = soFar.slice( matched.length );
}
// Filters
for ( type in Expr.filter ) {
if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
(match = preFilters[ type ]( match ))) ) {
matched = match.shift();
tokens.push({
value: matched,
type: type,
matches: match
});
soFar = soFar.slice( matched.length );
}
}
if ( !matched ) {
break;
}
}
// Return the length of the invalid excess
// if we're just parsing
// Otherwise, throw an error or return tokens
return parseOnly ?
soFar.length :
soFar ?
Sizzle.error( selector ) :
// Cache the tokens
tokenCache( selector, groups ).slice( 0 );
}
function toSelector( tokens ) {
var i = 0,
len = tokens.length,
selector = "";
for ( ; i < len; i++ ) {
selector += tokens[i].value;
}
return selector;
}
function addCombinator( matcher, combinator, base ) {
var dir = combinator.dir,
checkNonElements = base && dir === "parentNode",
doneName = done++;
return combinator.first ?
// Check against closest ancestor/preceding element
function( elem, context, xml ) {
while ( (elem = elem[ dir ]) ) {
if ( elem.nodeType === 1 || checkNonElements ) {
return matcher( elem, context, xml );
}
}
} :
// Check against all ancestor/preceding elements
function( elem, context, xml ) {
var data, cache, outerCache,
dirkey = dirruns + " " + doneName;
// We can't set arbitrary data on XML nodes, so they don't benefit from dir caching
if ( xml ) {
while ( (elem = elem[ dir ]) ) {
if ( elem.nodeType === 1 || checkNonElements ) {
if ( matcher( elem, context, xml ) ) {
return true;
}
}
}
} else {
while ( (elem = elem[ dir ]) ) {
if ( elem.nodeType === 1 || checkNonElements ) {
outerCache = elem[ expando ] || (elem[ expando ] = {});
if ( (cache = outerCache[ dir ]) && cache[0] === dirkey ) {
if ( (data = cache[1]) === true || data === cachedruns ) {
return data === true;
}
} else {
cache = outerCache[ dir ] = [ dirkey ];
cache[1] = matcher( elem, context, xml ) || cachedruns;
if ( cache[1] === true ) {
return true;
}
}
}
}
}
};
}
function elementMatcher( matchers ) {
return matchers.length > 1 ?
function( elem, context, xml ) {
var i = matchers.length;
while ( i-- ) {
if ( !matchers[i]( elem, context, xml ) ) {
return false;
}
}
return true;
} :
matchers[0];
}
function condense( unmatched, map, filter, context, xml ) {
var elem,
newUnmatched = [],
i = 0,
len = unmatched.length,
mapped = map != null;
for ( ; i < len; i++ ) {
if ( (elem = unmatched[i]) ) {
if ( !filter || filter( elem, context, xml ) ) {
newUnmatched.push( elem );
if ( mapped ) {
map.push( i );
}
}
}
}
return newUnmatched;
}
function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
if ( postFilter && !postFilter[ expando ] ) {
postFilter = setMatcher( postFilter );
}
if ( postFinder && !postFinder[ expando ] ) {
postFinder = setMatcher( postFinder, postSelector );
}
return markFunction(function( seed, results, context, xml ) {
var temp, i, elem,
preMap = [],
postMap = [],
preexisting = results.length,
// Get initial elements from seed or context
elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),
// Prefilter to get matcher input, preserving a map for seed-results synchronization
matcherIn = preFilter && ( seed || !selector ) ?
condense( elems, preMap, preFilter, context, xml ) :
elems,
matcherOut = matcher ?
// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
postFinder || ( seed ? preFilter : preexisting || postFilter ) ?
// ...intermediate processing is necessary
[] :
// ...otherwise use results directly
results :
matcherIn;
// Find primary matches
if ( matcher ) {
matcher( matcherIn, matcherOut, context, xml );
}
// Apply postFilter
if ( postFilter ) {
temp = condense( matcherOut, postMap );
postFilter( temp, [], context, xml );
// Un-match failing elements by moving them back to matcherIn
i = temp.length;
while ( i-- ) {
if ( (elem = temp[i]) ) {
matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
}
}
}
if ( seed ) {
if ( postFinder || preFilter ) {
if ( postFinder ) {
// Get the final matcherOut by condensing this intermediate into postFinder contexts
temp = [];
i = matcherOut.length;
while ( i-- ) {
if ( (elem = matcherOut[i]) ) {
// Restore matcherIn since elem is not yet a final match
temp.push( (matcherIn[i] = elem) );
}
}
postFinder( null, (matcherOut = []), temp, xml );
}
// Move matched elements from seed to results to keep them synchronized
i = matcherOut.length;
while ( i-- ) {
if ( (elem = matcherOut[i]) &&
(temp = postFinder ? indexOf.call( seed, elem ) : preMap[i]) > -1 ) {
seed[temp] = !(results[temp] = elem);
}
}
}
// Add elements to results, through postFinder if defined
} else {
matcherOut = condense(
matcherOut === results ?
matcherOut.splice( preexisting, matcherOut.length ) :
matcherOut
);
if ( postFinder ) {
postFinder( null, results, matcherOut, xml );
} else {
push.apply( results, matcherOut );
}
}
});
}
function matcherFromTokens( tokens ) {
var checkContext, matcher, j,
len = tokens.length,
leadingRelative = Expr.relative[ tokens[0].type ],
implicitRelative = leadingRelative || Expr.relative[" "],
i = leadingRelative ? 1 : 0,
// The foundational matcher ensures that elements are reachable from top-level context(s)
matchContext = addCombinator( function( elem ) {
return elem === checkContext;
}, implicitRelative, true ),
matchAnyContext = addCombinator( function( elem ) {
return indexOf.call( checkContext, elem ) > -1;
}, implicitRelative, true ),
matchers = [ function( elem, context, xml ) {
return ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
(checkContext = context).nodeType ?
matchContext( elem, context, xml ) :
matchAnyContext( elem, context, xml ) );
} ];
for ( ; i < len; i++ ) {
if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
} else {
matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );
// Return special upon seeing a positional matcher
if ( matcher[ expando ] ) {
// Find the next relative operator (if any) for proper handling
j = ++i;
for ( ; j < len; j++ ) {
if ( Expr.relative[ tokens[j].type ] ) {
break;
}
}
return setMatcher(
i > 1 && elementMatcher( matchers ),
i > 1 && toSelector(
// If the preceding token was a descendant combinator, insert an implicit any-element `*`
tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
).replace( rtrim, "$1" ),
matcher,
i < j && matcherFromTokens( tokens.slice( i, j ) ),
j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
j < len && toSelector( tokens )
);
}
matchers.push( matcher );
}
}
return elementMatcher( matchers );
}
function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
// A counter to specify which element is currently being matched
var matcherCachedRuns = 0,
bySet = setMatchers.length > 0,
byElement = elementMatchers.length > 0,
superMatcher = function( seed, context, xml, results, expandContext ) {
var elem, j, matcher,
setMatched = [],
matchedCount = 0,
i = "0",
unmatched = seed && [],
outermost = expandContext != null,
contextBackup = outermostContext,
// We must always have either seed elements or context
elems = seed || byElement && Expr.find["TAG"]( "*", expandContext && context.parentNode || context ),
// Use integer dirruns iff this is the outermost matcher
dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1);
if ( outermost ) {
outermostContext = context !== document && context;
cachedruns = matcherCachedRuns;
}
// Add elements passing elementMatchers directly to results
// Keep `i` a string if there are no elements so `matchedCount` will be "00" below
for ( ; (elem = elems[i]) != null; i++ ) {
if ( byElement && elem ) {
j = 0;
while ( (matcher = elementMatchers[j++]) ) {
if ( matcher( elem, context, xml ) ) {
results.push( elem );
break;
}
}
if ( outermost ) {
dirruns = dirrunsUnique;
cachedruns = ++matcherCachedRuns;
}
}
// Track unmatched elements for set filters
if ( bySet ) {
// They will have gone through all possible matchers
if ( (elem = !matcher && elem) ) {
matchedCount--;
}
// Lengthen the array for every element, matched or not
if ( seed ) {
unmatched.push( elem );
}
}
}
// Apply set filters to unmatched elements
matchedCount += i;
if ( bySet && i !== matchedCount ) {
j = 0;
while ( (matcher = setMatchers[j++]) ) {
matcher( unmatched, setMatched, context, xml );
}
if ( seed ) {
// Reintegrate element matches to eliminate the need for sorting
if ( matchedCount > 0 ) {
while ( i-- ) {
if ( !(unmatched[i] || setMatched[i]) ) {
setMatched[i] = pop.call( results );
}
}
}
// Discard index placeholder values to get only actual matches
setMatched = condense( setMatched );
}
// Add matches to results
push.apply( results, setMatched );
// Seedless set matches succeeding multiple successful matchers stipulate sorting
if ( outermost && !seed && setMatched.length > 0 &&
( matchedCount + setMatchers.length ) > 1 ) {
Sizzle.uniqueSort( results );
}
}
// Override manipulation of globals by nested matchers
if ( outermost ) {
dirruns = dirrunsUnique;
outermostContext = contextBackup;
}
return unmatched;
};
return bySet ?
markFunction( superMatcher ) :
superMatcher;
}
compile = Sizzle.compile = function( selector, group /* Internal Use Only */ ) {
var i,
setMatchers = [],
elementMatchers = [],
cached = compilerCache[ selector + " " ];
if ( !cached ) {
// Generate a function of recursive functions that can be used to check each element
if ( !group ) {
group = tokenize( selector );
}
i = group.length;
while ( i-- ) {
cached = matcherFromTokens( group[i] );
if ( cached[ expando ] ) {
setMatchers.push( cached );
} else {
elementMatchers.push( cached );
}
}
// Cache the compiled function
cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
}
return cached;
};
function multipleContexts( selector, contexts, results ) {
var i = 0,
len = contexts.length;
for ( ; i < len; i++ ) {
Sizzle( selector, contexts[i], results );
}
return results;
}
function select( selector, context, results, seed ) {
var i, tokens, token, type, find,
match = tokenize( selector );
if ( !seed ) {
// Try to minimize operations if there is only one group
if ( match.length === 1 ) {
// Take a shortcut and set the context if the root selector is an ID
tokens = match[0] = match[0].slice( 0 );
if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
support.getById && context.nodeType === 9 && documentIsHTML &&
Expr.relative[ tokens[1].type ] ) {
context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
if ( !context ) {
return results;
}
selector = selector.slice( tokens.shift().value.length );
}
// Fetch a seed set for right-to-left matching
i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
while ( i-- ) {
token = tokens[i];
// Abort if we hit a combinator
if ( Expr.relative[ (type = token.type) ] ) {
break;
}
if ( (find = Expr.find[ type ]) ) {
// Search, expanding context for leading sibling combinators
if ( (seed = find(
token.matches[0].replace( runescape, funescape ),
rsibling.test( tokens[0].type ) && context.parentNode || context
)) ) {
// If seed is empty or no tokens remain, we can return early
tokens.splice( i, 1 );
selector = seed.length && toSelector( tokens );
if ( !selector ) {
push.apply( results, seed );
return results;
}
break;
}
}
}
}
}
// Compile and execute a filtering function
// Provide `match` to avoid retokenization if we modified the selector above
compile( selector, match )(
seed,
context,
!documentIsHTML,
results,
rsibling.test( selector )
);
return results;
}
// One-time assignments
// Sort stability
support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
// Support: Chrome<14
// Always assume duplicates if they aren't passed to the comparison function
support.detectDuplicates = hasDuplicate;
// Initialize against the default document
setDocument();
// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
support.sortDetached = assert(function( div1 ) {
// Should return 1, but returns 4 (following)
return div1.compareDocumentPosition( document.createElement("div") ) & 1;
});
// Support: IE<8
// Prevent attribute/property "interpolation"
// http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert(function( div ) {
div.innerHTML = "";
return div.firstChild.getAttribute("href") === "#" ;
}) ) {
addHandle( "type|href|height|width", function( elem, name, isXML ) {
if ( !isXML ) {
return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
}
});
}
// Support: IE<9
// Use defaultValue in place of getAttribute("value")
if ( !support.attributes || !assert(function( div ) {
div.innerHTML = "";
div.firstChild.setAttribute( "value", "" );
return div.firstChild.getAttribute( "value" ) === "";
}) ) {
addHandle( "value", function( elem, name, isXML ) {
if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
return elem.defaultValue;
}
});
}
// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
if ( !assert(function( div ) {
return div.getAttribute("disabled") == null;
}) ) {
addHandle( booleans, function( elem, name, isXML ) {
var val;
if ( !isXML ) {
return (val = elem.getAttributeNode( name )) && val.specified ?
val.value :
elem[ name ] === true ? name.toLowerCase() : null;
}
});
}
jQuery.find = Sizzle;
jQuery.expr = Sizzle.selectors;
jQuery.expr[":"] = jQuery.expr.pseudos;
jQuery.unique = Sizzle.uniqueSort;
jQuery.text = Sizzle.getText;
jQuery.isXMLDoc = Sizzle.isXML;
jQuery.contains = Sizzle.contains;
})( window );
// String to Object options format cache
var optionsCache = {};
// Convert String-formatted options into Object-formatted ones and store in cache
function createOptions( options ) {
var object = optionsCache[ options ] = {};
jQuery.each( options.match( core_rnotwhite ) || [], function( _, flag ) {
object[ flag ] = true;
});
return object;
}
/*
* Create a callback list using the following parameters:
*
* options: an optional list of space-separated options that will change how
* the callback list behaves or a more traditional option object
*
* By default a callback list will act like an event callback list and can be
* "fired" multiple times.
*
* Possible options:
*
* once: will ensure the callback list can only be fired once (like a Deferred)
*
* memory: will keep track of previous values and will call any callback added
* after the list has been fired right away with the latest "memorized"
* values (like a Deferred)
*
* unique: will ensure a callback can only be added once (no duplicate in the list)
*
* stopOnFalse: interrupt callings when a callback returns false
*
*/
jQuery.Callbacks = function( options ) {
// Convert options from String-formatted to Object-formatted if needed
// (we check in cache first)
options = typeof options === "string" ?
( optionsCache[ options ] || createOptions( options ) ) :
jQuery.extend( {}, options );
var // Last fire value (for non-forgettable lists)
memory,
// Flag to know if list was already fired
fired,
// Flag to know if list is currently firing
firing,
// First callback to fire (used internally by add and fireWith)
firingStart,
// End of the loop when firing
firingLength,
// Index of currently firing callback (modified by remove if needed)
firingIndex,
// Actual callback list
list = [],
// Stack of fire calls for repeatable lists
stack = !options.once && [],
// Fire callbacks
fire = function( data ) {
memory = options.memory && data;
fired = true;
firingIndex = firingStart || 0;
firingStart = 0;
firingLength = list.length;
firing = true;
for ( ; list && firingIndex < firingLength; firingIndex++ ) {
if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
memory = false; // To prevent further calls using add
break;
}
}
firing = false;
if ( list ) {
if ( stack ) {
if ( stack.length ) {
fire( stack.shift() );
}
} else if ( memory ) {
list = [];
} else {
self.disable();
}
}
},
// Actual Callbacks object
self = {
// Add a callback or a collection of callbacks to the list
add: function() {
if ( list ) {
// First, we save the current length
var start = list.length;
(function add( args ) {
jQuery.each( args, function( _, arg ) {
var type = jQuery.type( arg );
if ( type === "function" ) {
if ( !options.unique || !self.has( arg ) ) {
list.push( arg );
}
} else if ( arg && arg.length && type !== "string" ) {
// Inspect recursively
add( arg );
}
});
})( arguments );
// Do we need to add the callbacks to the
// current firing batch?
if ( firing ) {
firingLength = list.length;
// With memory, if we're not firing then
// we should call right away
} else if ( memory ) {
firingStart = start;
fire( memory );
}
}
return this;
},
// Remove a callback from the list
remove: function() {
if ( list ) {
jQuery.each( arguments, function( _, arg ) {
var index;
while( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
list.splice( index, 1 );
// Handle firing indexes
if ( firing ) {
if ( index <= firingLength ) {
firingLength--;
}
if ( index <= firingIndex ) {
firingIndex--;
}
}
}
});
}
return this;
},
// Check if a given callback is in the list.
// If no argument is given, return whether or not list has callbacks attached.
has: function( fn ) {
return fn ? jQuery.inArray( fn, list ) > -1 : !!( list && list.length );
},
// Remove all callbacks from the list
empty: function() {
list = [];
firingLength = 0;
return this;
},
// Have the list do nothing anymore
disable: function() {
list = stack = memory = undefined;
return this;
},
// Is it disabled?
disabled: function() {
return !list;
},
// Lock the list in its current state
lock: function() {
stack = undefined;
if ( !memory ) {
self.disable();
}
return this;
},
// Is it locked?
locked: function() {
return !stack;
},
// Call all callbacks with the given context and arguments
fireWith: function( context, args ) {
if ( list && ( !fired || stack ) ) {
args = args || [];
args = [ context, args.slice ? args.slice() : args ];
if ( firing ) {
stack.push( args );
} else {
fire( args );
}
}
return this;
},
// Call all the callbacks with the given arguments
fire: function() {
self.fireWith( this, arguments );
return this;
},
// To know if the callbacks have already been called at least once
fired: function() {
return !!fired;
}
};
return self;
};
jQuery.extend({
Deferred: function( func ) {
var tuples = [
// action, add listener, listener list, final state
[ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
[ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
[ "notify", "progress", jQuery.Callbacks("memory") ]
],
state = "pending",
promise = {
state: function() {
return state;
},
always: function() {
deferred.done( arguments ).fail( arguments );
return this;
},
then: function( /* fnDone, fnFail, fnProgress */ ) {
var fns = arguments;
return jQuery.Deferred(function( newDefer ) {
jQuery.each( tuples, function( i, tuple ) {
var action = tuple[ 0 ],
fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
// deferred[ done | fail | progress ] for forwarding actions to newDefer
deferred[ tuple[1] ](function() {
var returned = fn && fn.apply( this, arguments );
if ( returned && jQuery.isFunction( returned.promise ) ) {
returned.promise()
.done( newDefer.resolve )
.fail( newDefer.reject )
.progress( newDefer.notify );
} else {
newDefer[ action + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );
}
});
});
fns = null;
}).promise();
},
// Get a promise for this deferred
// If obj is provided, the promise aspect is added to the object
promise: function( obj ) {
return obj != null ? jQuery.extend( obj, promise ) : promise;
}
},
deferred = {};
// Keep pipe for back-compat
promise.pipe = promise.then;
// Add list-specific methods
jQuery.each( tuples, function( i, tuple ) {
var list = tuple[ 2 ],
stateString = tuple[ 3 ];
// promise[ done | fail | progress ] = list.add
promise[ tuple[1] ] = list.add;
// Handle state
if ( stateString ) {
list.add(function() {
// state = [ resolved | rejected ]
state = stateString;
// [ reject_list | resolve_list ].disable; progress_list.lock
}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
}
// deferred[ resolve | reject | notify ]
deferred[ tuple[0] ] = function() {
deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
return this;
};
deferred[ tuple[0] + "With" ] = list.fireWith;
});
// Make the deferred a promise
promise.promise( deferred );
// Call given func if any
if ( func ) {
func.call( deferred, deferred );
}
// All done!
return deferred;
},
// Deferred helper
when: function( subordinate /* , ..., subordinateN */ ) {
var i = 0,
resolveValues = core_slice.call( arguments ),
length = resolveValues.length,
// the count of uncompleted subordinates
remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,
// the master Deferred. If resolveValues consist of only a single Deferred, just use that.
deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
// Update function for both resolve and progress values
updateFunc = function( i, contexts, values ) {
return function( value ) {
contexts[ i ] = this;
values[ i ] = arguments.length > 1 ? core_slice.call( arguments ) : value;
if( values === progressValues ) {
deferred.notifyWith( contexts, values );
} else if ( !( --remaining ) ) {
deferred.resolveWith( contexts, values );
}
};
},
progressValues, progressContexts, resolveContexts;
// add listeners to Deferred subordinates; treat others as resolved
if ( length > 1 ) {
progressValues = new Array( length );
progressContexts = new Array( length );
resolveContexts = new Array( length );
for ( ; i < length; i++ ) {
if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
resolveValues[ i ].promise()
.done( updateFunc( i, resolveContexts, resolveValues ) )
.fail( deferred.reject )
.progress( updateFunc( i, progressContexts, progressValues ) );
} else {
--remaining;
}
}
}
// if we're not waiting on anything, resolve the master
if ( !remaining ) {
deferred.resolveWith( resolveContexts, resolveValues );
}
return deferred.promise();
}
});
jQuery.support = (function( support ) {
var input = document.createElement("input"),
fragment = document.createDocumentFragment(),
div = document.createElement("div"),
select = document.createElement("select"),
opt = select.appendChild( document.createElement("option") );
// Finish early in limited environments
if ( !input.type ) {
return support;
}
input.type = "checkbox";
// Support: Safari 5.1, iOS 5.1, Android 4.x, Android 2.3
// Check the default checkbox/radio value ("" on old WebKit; "on" elsewhere)
support.checkOn = input.value !== "";
// Must access the parent to make an option select properly
// Support: IE9, IE10
support.optSelected = opt.selected;
// Will be defined later
support.reliableMarginRight = true;
support.boxSizingReliable = true;
support.pixelPosition = false;
// Make sure checked status is properly cloned
// Support: IE9, IE10
input.checked = true;
support.noCloneChecked = input.cloneNode( true ).checked;
// Make sure that the options inside disabled selects aren't marked as disabled
// (WebKit marks them as disabled)
select.disabled = true;
support.optDisabled = !opt.disabled;
// Check if an input maintains its value after becoming a radio
// Support: IE9, IE10
input = document.createElement("input");
input.value = "t";
input.type = "radio";
support.radioValue = input.value === "t";
// #11217 - WebKit loses check when the name is after the checked attribute
input.setAttribute( "checked", "t" );
input.setAttribute( "name", "t" );
fragment.appendChild( input );
// Support: Safari 5.1, Android 4.x, Android 2.3
// old WebKit doesn't clone checked state correctly in fragments
support.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;
// Support: Firefox, Chrome, Safari
// Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)
support.focusinBubbles = "onfocusin" in window;
div.style.backgroundClip = "content-box";
div.cloneNode( true ).style.backgroundClip = "";
support.clearCloneStyle = div.style.backgroundClip === "content-box";
// Run tests that need a body at doc ready
jQuery(function() {
var container, marginDiv,
// Support: Firefox, Android 2.3 (Prefixed box-sizing versions).
divReset = "padding:0;margin:0;border:0;display:block;-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box",
body = document.getElementsByTagName("body")[ 0 ];
if ( !body ) {
// Return for frameset docs that don't have a body
return;
}
container = document.createElement("div");
container.style.cssText = "border:0;width:0;height:0;position:absolute;top:0;left:-9999px;margin-top:1px";
// Check box-sizing and margin behavior.
body.appendChild( container ).appendChild( div );
div.innerHTML = "";
// Support: Firefox, Android 2.3 (Prefixed box-sizing versions).
div.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%";
// Workaround failing boxSizing test due to offsetWidth returning wrong value
// with some non-1 values of body zoom, ticket #13543
jQuery.swap( body, body.style.zoom != null ? { zoom: 1 } : {}, function() {
support.boxSizing = div.offsetWidth === 4;
});
// Use window.getComputedStyle because jsdom on node.js will break without it.
if ( window.getComputedStyle ) {
support.pixelPosition = ( window.getComputedStyle( div, null ) || {} ).top !== "1%";
support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";
// Support: Android 2.3
// Check if div with explicit width and no margin-right incorrectly
// gets computed margin-right based on width of container. (#3333)
// WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right
marginDiv = div.appendChild( document.createElement("div") );
marginDiv.style.cssText = div.style.cssText = divReset;
marginDiv.style.marginRight = marginDiv.style.width = "0";
div.style.width = "1px";
support.reliableMarginRight =
!parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );
}
body.removeChild( container );
});
return support;
})( {} );
/*
Implementation Summary
1. Enforce API surface and semantic compatibility with 1.9.x branch
2. Improve the module's maintainability by reducing the storage
paths to a single mechanism.
3. Use the same single mechanism to support "private" and "user" data.
4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
5. Avoid exposing implementation details on user objects (eg. expando properties)
6. Provide a clear path for implementation upgrade to WeakMap in 2014
*/
var data_user, data_priv,
rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/,
rmultiDash = /([A-Z])/g;
function Data() {
// Support: Android < 4,
// Old WebKit does not have Object.preventExtensions/freeze method,
// return new empty object instead with no [[set]] accessor
Object.defineProperty( this.cache = {}, 0, {
get: function() {
return {};
}
});
this.expando = jQuery.expando + Math.random();
}
Data.uid = 1;
Data.accepts = function( owner ) {
// Accepts only:
// - Node
// - Node.ELEMENT_NODE
// - Node.DOCUMENT_NODE
// - Object
// - Any
return owner.nodeType ?
owner.nodeType === 1 || owner.nodeType === 9 : true;
};
Data.prototype = {
key: function( owner ) {
// We can accept data for non-element nodes in modern browsers,
// but we should not, see #8335.
// Always return the key for a frozen object.
if ( !Data.accepts( owner ) ) {
return 0;
}
var descriptor = {},
// Check if the owner object already has a cache key
unlock = owner[ this.expando ];
// If not, create one
if ( !unlock ) {
unlock = Data.uid++;
// Secure it in a non-enumerable, non-writable property
try {
descriptor[ this.expando ] = { value: unlock };
Object.defineProperties( owner, descriptor );
// Support: Android < 4
// Fallback to a less secure definition
} catch ( e ) {
descriptor[ this.expando ] = unlock;
jQuery.extend( owner, descriptor );
}
}
// Ensure the cache object
if ( !this.cache[ unlock ] ) {
this.cache[ unlock ] = {};
}
return unlock;
},
set: function( owner, data, value ) {
var prop,
// There may be an unlock assigned to this node,
// if there is no entry for this "owner", create one inline
// and set the unlock as though an owner entry had always existed
unlock = this.key( owner ),
cache = this.cache[ unlock ];
// Handle: [ owner, key, value ] args
if ( typeof data === "string" ) {
cache[ data ] = value;
// Handle: [ owner, { properties } ] args
} else {
// Fresh assignments by object are shallow copied
if ( jQuery.isEmptyObject( cache ) ) {
jQuery.extend( this.cache[ unlock ], data );
// Otherwise, copy the properties one-by-one to the cache object
} else {
for ( prop in data ) {
cache[ prop ] = data[ prop ];
}
}
}
return cache;
},
get: function( owner, key ) {
// Either a valid cache is found, or will be created.
// New caches will be created and the unlock returned,
// allowing direct access to the newly created
// empty data object. A valid owner object must be provided.
var cache = this.cache[ this.key( owner ) ];
return key === undefined ?
cache : cache[ key ];
},
access: function( owner, key, value ) {
var stored;
// In cases where either:
//
// 1. No key was specified
// 2. A string key was specified, but no value provided
//
// Take the "read" path and allow the get method to determine
// which value to return, respectively either:
//
// 1. The entire cache object
// 2. The data stored at the key
//
if ( key === undefined ||
((key && typeof key === "string") && value === undefined) ) {
stored = this.get( owner, key );
return stored !== undefined ?
stored : this.get( owner, jQuery.camelCase(key) );
}
// [*]When the key is not a string, or both a key and value
// are specified, set or extend (existing objects) with either:
//
// 1. An object of properties
// 2. A key and value
//
this.set( owner, key, value );
// Since the "set" path can have two possible entry points
// return the expected data based on which path was taken[*]
return value !== undefined ? value : key;
},
remove: function( owner, key ) {
var i, name, camel,
unlock = this.key( owner ),
cache = this.cache[ unlock ];
if ( key === undefined ) {
this.cache[ unlock ] = {};
} else {
// Support array or space separated string of keys
if ( jQuery.isArray( key ) ) {
// If "name" is an array of keys...
// When data is initially created, via ("key", "val") signature,
// keys will be converted to camelCase.
// Since there is no way to tell _how_ a key was added, remove
// both plain key and camelCase key. #12786
// This will only penalize the array argument path.
name = key.concat( key.map( jQuery.camelCase ) );
} else {
camel = jQuery.camelCase( key );
// Try the string as a key before any manipulation
if ( key in cache ) {
name = [ key, camel ];
} else {
// If a key with the spaces exists, use it.
// Otherwise, create an array by matching non-whitespace
name = camel;
name = name in cache ?
[ name ] : ( name.match( core_rnotwhite ) || [] );
}
}
i = name.length;
while ( i-- ) {
delete cache[ name[ i ] ];
}
}
},
hasData: function( owner ) {
return !jQuery.isEmptyObject(
this.cache[ owner[ this.expando ] ] || {}
);
},
discard: function( owner ) {
if ( owner[ this.expando ] ) {
delete this.cache[ owner[ this.expando ] ];
}
}
};
// These may be used throughout the jQuery core codebase
data_user = new Data();
data_priv = new Data();
jQuery.extend({
acceptData: Data.accepts,
hasData: function( elem ) {
return data_user.hasData( elem ) || data_priv.hasData( elem );
},
data: function( elem, name, data ) {
return data_user.access( elem, name, data );
},
removeData: function( elem, name ) {
data_user.remove( elem, name );
},
// TODO: Now that all calls to _data and _removeData have been replaced
// with direct calls to data_priv methods, these can be deprecated.
_data: function( elem, name, data ) {
return data_priv.access( elem, name, data );
},
_removeData: function( elem, name ) {
data_priv.remove( elem, name );
}
});
jQuery.fn.extend({
data: function( key, value ) {
var attrs, name,
elem = this[ 0 ],
i = 0,
data = null;
// Gets all values
if ( key === undefined ) {
if ( this.length ) {
data = data_user.get( elem );
if ( elem.nodeType === 1 && !data_priv.get( elem, "hasDataAttrs" ) ) {
attrs = elem.attributes;
for ( ; i < attrs.length; i++ ) {
name = attrs[ i ].name;
if ( name.indexOf( "data-" ) === 0 ) {
name = jQuery.camelCase( name.slice(5) );
dataAttr( elem, name, data[ name ] );
}
}
data_priv.set( elem, "hasDataAttrs", true );
}
}
return data;
}
// Sets multiple values
if ( typeof key === "object" ) {
return this.each(function() {
data_user.set( this, key );
});
}
return jQuery.access( this, function( value ) {
var data,
camelKey = jQuery.camelCase( key );
// The calling jQuery object (element matches) is not empty
// (and therefore has an element appears at this[ 0 ]) and the
// `value` parameter was not undefined. An empty jQuery object
// will result in `undefined` for elem = this[ 0 ] which will
// throw an exception if an attempt to read a data cache is made.
if ( elem && value === undefined ) {
// Attempt to get data from the cache
// with the key as-is
data = data_user.get( elem, key );
if ( data !== undefined ) {
return data;
}
// Attempt to get data from the cache
// with the key camelized
data = data_user.get( elem, camelKey );
if ( data !== undefined ) {
return data;
}
// Attempt to "discover" the data in
// HTML5 custom data-* attrs
data = dataAttr( elem, camelKey, undefined );
if ( data !== undefined ) {
return data;
}
// We tried really hard, but the data doesn't exist.
return;
}
// Set the data...
this.each(function() {
// First, attempt to store a copy or reference of any
// data that might've been store with a camelCased key.
var data = data_user.get( this, camelKey );
// For HTML5 data-* attribute interop, we have to
// store property names with dashes in a camelCase form.
// This might not apply to all properties...*
data_user.set( this, camelKey, value );
// *... In the case of properties that might _actually_
// have dashes, we need to also store a copy of that
// unchanged property.
if ( key.indexOf("-") !== -1 && data !== undefined ) {
data_user.set( this, key, value );
}
});
}, null, value, arguments.length > 1, null, true );
},
removeData: function( key ) {
return this.each(function() {
data_user.remove( this, key );
});
}
});
function dataAttr( elem, key, data ) {
var name;
// If nothing was found internally, try to fetch any
// data from the HTML5 data-* attribute
if ( data === undefined && elem.nodeType === 1 ) {
name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase();
data = elem.getAttribute( name );
if ( typeof data === "string" ) {
try {
data = data === "true" ? true :
data === "false" ? false :
data === "null" ? null :
// Only convert to a number if it doesn't change the string
+data + "" === data ? +data :
rbrace.test( data ) ? JSON.parse( data ) :
data;
} catch( e ) {}
// Make sure we set the data so it isn't changed later
data_user.set( elem, key, data );
} else {
data = undefined;
}
}
return data;
}
jQuery.extend({
queue: function( elem, type, data ) {
var queue;
if ( elem ) {
type = ( type || "fx" ) + "queue";
queue = data_priv.get( elem, type );
// Speed up dequeue by getting out quickly if this is just a lookup
if ( data ) {
if ( !queue || jQuery.isArray( data ) ) {
queue = data_priv.access( elem, type, jQuery.makeArray(data) );
} else {
queue.push( data );
}
}
return queue || [];
}
},
dequeue: function( elem, type ) {
type = type || "fx";
var queue = jQuery.queue( elem, type ),
startLength = queue.length,
fn = queue.shift(),
hooks = jQuery._queueHooks( elem, type ),
next = function() {
jQuery.dequeue( elem, type );
};
// If the fx queue is dequeued, always remove the progress sentinel
if ( fn === "inprogress" ) {
fn = queue.shift();
startLength--;
}
if ( fn ) {
// Add a progress sentinel to prevent the fx queue from being
// automatically dequeued
if ( type === "fx" ) {
queue.unshift( "inprogress" );
}
// clear up the last queue stop function
delete hooks.stop;
fn.call( elem, next, hooks );
}
if ( !startLength && hooks ) {
hooks.empty.fire();
}
},
// not intended for public consumption - generates a queueHooks object, or returns the current one
_queueHooks: function( elem, type ) {
var key = type + "queueHooks";
return data_priv.get( elem, key ) || data_priv.access( elem, key, {
empty: jQuery.Callbacks("once memory").add(function() {
data_priv.remove( elem, [ type + "queue", key ] );
})
});
}
});
jQuery.fn.extend({
queue: function( type, data ) {
var setter = 2;
if ( typeof type !== "string" ) {
data = type;
type = "fx";
setter--;
}
if ( arguments.length < setter ) {
return jQuery.queue( this[0], type );
}
return data === undefined ?
this :
this.each(function() {
var queue = jQuery.queue( this, type, data );
// ensure a hooks for this queue
jQuery._queueHooks( this, type );
if ( type === "fx" && queue[0] !== "inprogress" ) {
jQuery.dequeue( this, type );
}
});
},
dequeue: function( type ) {
return this.each(function() {
jQuery.dequeue( this, type );
});
},
// Based off of the plugin by Clint Helfers, with permission.
// http://blindsignals.com/index.php/2009/07/jquery-delay/
delay: function( time, type ) {
time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
type = type || "fx";
return this.queue( type, function( next, hooks ) {
var timeout = setTimeout( next, time );
hooks.stop = function() {
clearTimeout( timeout );
};
});
},
clearQueue: function( type ) {
return this.queue( type || "fx", [] );
},
// Get a promise resolved when queues of a certain type
// are emptied (fx is the type by default)
promise: function( type, obj ) {
var tmp,
count = 1,
defer = jQuery.Deferred(),
elements = this,
i = this.length,
resolve = function() {
if ( !( --count ) ) {
defer.resolveWith( elements, [ elements ] );
}
};
if ( typeof type !== "string" ) {
obj = type;
type = undefined;
}
type = type || "fx";
while( i-- ) {
tmp = data_priv.get( elements[ i ], type + "queueHooks" );
if ( tmp && tmp.empty ) {
count++;
tmp.empty.add( resolve );
}
}
resolve();
return defer.promise( obj );
}
});
var nodeHook, boolHook,
rclass = /[\t\r\n\f]/g,
rreturn = /\r/g,
rfocusable = /^(?:input|select|textarea|button)$/i;
jQuery.fn.extend({
attr: function( name, value ) {
return jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );
},
removeAttr: function( name ) {
return this.each(function() {
jQuery.removeAttr( this, name );
});
},
prop: function( name, value ) {
return jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );
},
removeProp: function( name ) {
return this.each(function() {
delete this[ jQuery.propFix[ name ] || name ];
});
},
addClass: function( value ) {
var classes, elem, cur, clazz, j,
i = 0,
len = this.length,
proceed = typeof value === "string" && value;
if ( jQuery.isFunction( value ) ) {
return this.each(function( j ) {
jQuery( this ).addClass( value.call( this, j, this.className ) );
});
}
if ( proceed ) {
// The disjunction here is for better compressibility (see removeClass)
classes = ( value || "" ).match( core_rnotwhite ) || [];
for ( ; i < len; i++ ) {
elem = this[ i ];
cur = elem.nodeType === 1 && ( elem.className ?
( " " + elem.className + " " ).replace( rclass, " " ) :
" "
);
if ( cur ) {
j = 0;
while ( (clazz = classes[j++]) ) {
if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
cur += clazz + " ";
}
}
elem.className = jQuery.trim( cur );
}
}
}
return this;
},
removeClass: function( value ) {
var classes, elem, cur, clazz, j,
i = 0,
len = this.length,
proceed = arguments.length === 0 || typeof value === "string" && value;
if ( jQuery.isFunction( value ) ) {
return this.each(function( j ) {
jQuery( this ).removeClass( value.call( this, j, this.className ) );
});
}
if ( proceed ) {
classes = ( value || "" ).match( core_rnotwhite ) || [];
for ( ; i < len; i++ ) {
elem = this[ i ];
// This expression is here for better compressibility (see addClass)
cur = elem.nodeType === 1 && ( elem.className ?
( " " + elem.className + " " ).replace( rclass, " " ) :
""
);
if ( cur ) {
j = 0;
while ( (clazz = classes[j++]) ) {
// Remove *all* instances
while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
cur = cur.replace( " " + clazz + " ", " " );
}
}
elem.className = value ? jQuery.trim( cur ) : "";
}
}
}
return this;
},
toggleClass: function( value, stateVal ) {
var type = typeof value;
if ( typeof stateVal === "boolean" && type === "string" ) {
return stateVal ? this.addClass( value ) : this.removeClass( value );
}
if ( jQuery.isFunction( value ) ) {
return this.each(function( i ) {
jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
});
}
return this.each(function() {
if ( type === "string" ) {
// toggle individual class names
var className,
i = 0,
self = jQuery( this ),
classNames = value.match( core_rnotwhite ) || [];
while ( (className = classNames[ i++ ]) ) {
// check each className given, space separated list
if ( self.hasClass( className ) ) {
self.removeClass( className );
} else {
self.addClass( className );
}
}
// Toggle whole class name
} else if ( type === core_strundefined || type === "boolean" ) {
if ( this.className ) {
// store className if set
data_priv.set( this, "__className__", this.className );
}
// If the element has a class name or if we're passed "false",
// then remove the whole classname (if there was one, the above saved it).
// Otherwise bring back whatever was previously saved (if anything),
// falling back to the empty string if nothing was stored.
this.className = this.className || value === false ? "" : data_priv.get( this, "__className__" ) || "";
}
});
},
hasClass: function( selector ) {
var className = " " + selector + " ",
i = 0,
l = this.length;
for ( ; i < l; i++ ) {
if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
return true;
}
}
return false;
},
val: function( value ) {
var hooks, ret, isFunction,
elem = this[0];
if ( !arguments.length ) {
if ( elem ) {
hooks = jQuery.valHooks[ elem.type ] || jQuery.valHooks[ elem.nodeName.toLowerCase() ];
if ( hooks && "get" in hooks && (ret = hooks.get( elem, "value" )) !== undefined ) {
return ret;
}
ret = elem.value;
return typeof ret === "string" ?
// handle most common string cases
ret.replace(rreturn, "") :
// handle cases where value is null/undef or number
ret == null ? "" : ret;
}
return;
}
isFunction = jQuery.isFunction( value );
return this.each(function( i ) {
var val;
if ( this.nodeType !== 1 ) {
return;
}
if ( isFunction ) {
val = value.call( this, i, jQuery( this ).val() );
} else {
val = value;
}
// Treat null/undefined as ""; convert numbers to string
if ( val == null ) {
val = "";
} else if ( typeof val === "number" ) {
val += "";
} else if ( jQuery.isArray( val ) ) {
val = jQuery.map(val, function ( value ) {
return value == null ? "" : value + "";
});
}
hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];
// If set returns undefined, fall back to normal setting
if ( !hooks || !("set" in hooks) || hooks.set( this, val, "value" ) === undefined ) {
this.value = val;
}
});
}
});
jQuery.extend({
valHooks: {
option: {
get: function( elem ) {
// attributes.value is undefined in Blackberry 4.7 but
// uses .value. See #6932
var val = elem.attributes.value;
return !val || val.specified ? elem.value : elem.text;
}
},
select: {
get: function( elem ) {
var value, option,
options = elem.options,
index = elem.selectedIndex,
one = elem.type === "select-one" || index < 0,
values = one ? null : [],
max = one ? index + 1 : options.length,
i = index < 0 ?
max :
one ? index : 0;
// Loop through all the selected options
for ( ; i < max; i++ ) {
option = options[ i ];
// IE6-9 doesn't update selected after form reset (#2551)
if ( ( option.selected || i === index ) &&
// Don't return options that are disabled or in a disabled optgroup
( jQuery.support.optDisabled ? !option.disabled : option.getAttribute("disabled") === null ) &&
( !option.parentNode.disabled || !jQuery.nodeName( option.parentNode, "optgroup" ) ) ) {
// Get the specific value for the option
value = jQuery( option ).val();
// We don't need an array for one selects
if ( one ) {
return value;
}
// Multi-Selects return an array
values.push( value );
}
}
return values;
},
set: function( elem, value ) {
var optionSet, option,
options = elem.options,
values = jQuery.makeArray( value ),
i = options.length;
while ( i-- ) {
option = options[ i ];
if ( (option.selected = jQuery.inArray( jQuery(option).val(), values ) >= 0) ) {
optionSet = true;
}
}
// force browsers to behave consistently when non-matching value is set
if ( !optionSet ) {
elem.selectedIndex = -1;
}
return values;
}
}
},
attr: function( elem, name, value ) {
var hooks, ret,
nType = elem.nodeType;
// don't get/set attributes on text, comment and attribute nodes
if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
return;
}
// Fallback to prop when attributes are not supported
if ( typeof elem.getAttribute === core_strundefined ) {
return jQuery.prop( elem, name, value );
}
// All attributes are lowercase
// Grab necessary hook if one is defined
if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
name = name.toLowerCase();
hooks = jQuery.attrHooks[ name ] ||
( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );
}
if ( value !== undefined ) {
if ( value === null ) {
jQuery.removeAttr( elem, name );
} else if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
return ret;
} else {
elem.setAttribute( name, value + "" );
return value;
}
} else if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
return ret;
} else {
ret = jQuery.find.attr( elem, name );
// Non-existent attributes return null, we normalize to undefined
return ret == null ?
undefined :
ret;
}
},
removeAttr: function( elem, value ) {
var name, propName,
i = 0,
attrNames = value && value.match( core_rnotwhite );
if ( attrNames && elem.nodeType === 1 ) {
while ( (name = attrNames[i++]) ) {
propName = jQuery.propFix[ name ] || name;
// Boolean attributes get special treatment (#10870)
if ( jQuery.expr.match.bool.test( name ) ) {
// Set corresponding property to false
elem[ propName ] = false;
}
elem.removeAttribute( name );
}
}
},
attrHooks: {
type: {
set: function( elem, value ) {
if ( !jQuery.support.radioValue && value === "radio" && jQuery.nodeName(elem, "input") ) {
// Setting the type on a radio button after the value resets the value in IE6-9
// Reset value to default in case type is set after value during creation
var val = elem.value;
elem.setAttribute( "type", value );
if ( val ) {
elem.value = val;
}
return value;
}
}
}
},
propFix: {
"for": "htmlFor",
"class": "className"
},
prop: function( elem, name, value ) {
var ret, hooks, notxml,
nType = elem.nodeType;
// don't get/set properties on text, comment and attribute nodes
if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
return;
}
notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
if ( notxml ) {
// Fix name and attach hooks
name = jQuery.propFix[ name ] || name;
hooks = jQuery.propHooks[ name ];
}
if ( value !== undefined ) {
return hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ?
ret :
( elem[ name ] = value );
} else {
return hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ?
ret :
elem[ name ];
}
},
propHooks: {
tabIndex: {
get: function( elem ) {
return elem.hasAttribute( "tabindex" ) || rfocusable.test( elem.nodeName ) || elem.href ?
elem.tabIndex :
-1;
}
}
}
});
// Hooks for boolean attributes
boolHook = {
set: function( elem, value, name ) {
if ( value === false ) {
// Remove boolean attributes when set to false
jQuery.removeAttr( elem, name );
} else {
elem.setAttribute( name, name );
}
return name;
}
};
jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
var getter = jQuery.expr.attrHandle[ name ] || jQuery.find.attr;
jQuery.expr.attrHandle[ name ] = function( elem, name, isXML ) {
var fn = jQuery.expr.attrHandle[ name ],
ret = isXML ?
undefined :
/* jshint eqeqeq: false */
// Temporarily disable this handler to check existence
(jQuery.expr.attrHandle[ name ] = undefined) !=
getter( elem, name, isXML ) ?
name.toLowerCase() :
null;
// Restore handler
jQuery.expr.attrHandle[ name ] = fn;
return ret;
};
});
// Support: IE9+
// Selectedness for an option in an optgroup can be inaccurate
if ( !jQuery.support.optSelected ) {
jQuery.propHooks.selected = {
get: function( elem ) {
var parent = elem.parentNode;
if ( parent && parent.parentNode ) {
parent.parentNode.selectedIndex;
}
return null;
}
};
}
jQuery.each([
"tabIndex",
"readOnly",
"maxLength",
"cellSpacing",
"cellPadding",
"rowSpan",
"colSpan",
"useMap",
"frameBorder",
"contentEditable"
], function() {
jQuery.propFix[ this.toLowerCase() ] = this;
});
// Radios and checkboxes getter/setter
jQuery.each([ "radio", "checkbox" ], function() {
jQuery.valHooks[ this ] = {
set: function( elem, value ) {
if ( jQuery.isArray( value ) ) {
return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
}
}
};
if ( !jQuery.support.checkOn ) {
jQuery.valHooks[ this ].get = function( elem ) {
// Support: Webkit
// "" is returned instead of "on" if a value isn't specified
return elem.getAttribute("value") === null ? "on" : elem.value;
};
}
});
var rkeyEvent = /^key/,
rmouseEvent = /^(?:mouse|contextmenu)|click/,
rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;
function returnTrue() {
return true;
}
function returnFalse() {
return false;
}
function safeActiveElement() {
try {
return document.activeElement;
} catch ( err ) { }
}
/*
* Helper functions for managing events -- not part of the public interface.
* Props to Dean Edwards' addEvent library for many of the ideas.
*/
jQuery.event = {
global: {},
add: function( elem, types, handler, data, selector ) {
var handleObjIn, eventHandle, tmp,
events, t, handleObj,
special, handlers, type, namespaces, origType,
elemData = data_priv.get( elem );
// Don't attach events to noData or text/comment nodes (but allow plain objects)
if ( !elemData ) {
return;
}
// Caller can pass in an object of custom data in lieu of the handler
if ( handler.handler ) {
handleObjIn = handler;
handler = handleObjIn.handler;
selector = handleObjIn.selector;
}
// Make sure that the handler has a unique ID, used to find/remove it later
if ( !handler.guid ) {
handler.guid = jQuery.guid++;
}
// Init the element's event structure and main handler, if this is the first
if ( !(events = elemData.events) ) {
events = elemData.events = {};
}
if ( !(eventHandle = elemData.handle) ) {
eventHandle = elemData.handle = function( e ) {
// Discard the second event of a jQuery.event.trigger() and
// when an event is called after a page has unloaded
return typeof jQuery !== core_strundefined && (!e || jQuery.event.triggered !== e.type) ?
jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :
undefined;
};
// Add elem as a property of the handle fn to prevent a memory leak with IE non-native events
eventHandle.elem = elem;
}
// Handle multiple events separated by a space
types = ( types || "" ).match( core_rnotwhite ) || [""];
t = types.length;
while ( t-- ) {
tmp = rtypenamespace.exec( types[t] ) || [];
type = origType = tmp[1];
namespaces = ( tmp[2] || "" ).split( "." ).sort();
// There *must* be a type, no attaching namespace-only handlers
if ( !type ) {
continue;
}
// If event changes its type, use the special event handlers for the changed type
special = jQuery.event.special[ type ] || {};
// If selector defined, determine special event api type, otherwise given type
type = ( selector ? special.delegateType : special.bindType ) || type;
// Update special based on newly reset type
special = jQuery.event.special[ type ] || {};
// handleObj is passed to all event handlers
handleObj = jQuery.extend({
type: type,
origType: origType,
data: data,
handler: handler,
guid: handler.guid,
selector: selector,
needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
namespace: namespaces.join(".")
}, handleObjIn );
// Init the event handler queue if we're the first
if ( !(handlers = events[ type ]) ) {
handlers = events[ type ] = [];
handlers.delegateCount = 0;
// Only use addEventListener if the special events handler returns false
if ( !special.setup || special.setup.call( elem, data, namespaces, eventHandle ) === false ) {
if ( elem.addEventListener ) {
elem.addEventListener( type, eventHandle, false );
}
}
}
if ( special.add ) {
special.add.call( elem, handleObj );
if ( !handleObj.handler.guid ) {
handleObj.handler.guid = handler.guid;
}
}
// Add to the element's handler list, delegates in front
if ( selector ) {
handlers.splice( handlers.delegateCount++, 0, handleObj );
} else {
handlers.push( handleObj );
}
// Keep track of which events have ever been used, for event optimization
jQuery.event.global[ type ] = true;
}
// Nullify elem to prevent memory leaks in IE
elem = null;
},
// Detach an event or set of events from an element
remove: function( elem, types, handler, selector, mappedTypes ) {
var j, origCount, tmp,
events, t, handleObj,
special, handlers, type, namespaces, origType,
elemData = data_priv.hasData( elem ) && data_priv.get( elem );
if ( !elemData || !(events = elemData.events) ) {
return;
}
// Once for each type.namespace in types; type may be omitted
types = ( types || "" ).match( core_rnotwhite ) || [""];
t = types.length;
while ( t-- ) {
tmp = rtypenamespace.exec( types[t] ) || [];
type = origType = tmp[1];
namespaces = ( tmp[2] || "" ).split( "." ).sort();
// Unbind all events (on this namespace, if provided) for the element
if ( !type ) {
for ( type in events ) {
jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
}
continue;
}
special = jQuery.event.special[ type ] || {};
type = ( selector ? special.delegateType : special.bindType ) || type;
handlers = events[ type ] || [];
tmp = tmp[2] && new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" );
// Remove matching events
origCount = j = handlers.length;
while ( j-- ) {
handleObj = handlers[ j ];
if ( ( mappedTypes || origType === handleObj.origType ) &&
( !handler || handler.guid === handleObj.guid ) &&
( !tmp || tmp.test( handleObj.namespace ) ) &&
( !selector || selector === handleObj.selector || selector === "**" && handleObj.selector ) ) {
handlers.splice( j, 1 );
if ( handleObj.selector ) {
handlers.delegateCount--;
}
if ( special.remove ) {
special.remove.call( elem, handleObj );
}
}
}
// Remove generic event handler if we removed something and no more handlers exist
// (avoids potential for endless recursion during removal of special event handlers)
if ( origCount && !handlers.length ) {
if ( !special.teardown || special.teardown.call( elem, namespaces, elemData.handle ) === false ) {
jQuery.removeEvent( elem, type, elemData.handle );
}
delete events[ type ];
}
}
// Remove the expando if it's no longer used
if ( jQuery.isEmptyObject( events ) ) {
delete elemData.handle;
data_priv.remove( elem, "events" );
}
},
trigger: function( event, data, elem, onlyHandlers ) {
var i, cur, tmp, bubbleType, ontype, handle, special,
eventPath = [ elem || document ],
type = core_hasOwn.call( event, "type" ) ? event.type : event,
namespaces = core_hasOwn.call( event, "namespace" ) ? event.namespace.split(".") : [];
cur = tmp = elem = elem || document;
// Don't do events on text and comment nodes
if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
return;
}
// focus/blur morphs to focusin/out; ensure we're not firing them right now
if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
return;
}
if ( type.indexOf(".") >= 0 ) {
// Namespaced trigger; create a regexp to match event type in handle()
namespaces = type.split(".");
type = namespaces.shift();
namespaces.sort();
}
ontype = type.indexOf(":") < 0 && "on" + type;
// Caller can pass in a jQuery.Event object, Object, or just an event type string
event = event[ jQuery.expando ] ?
event :
new jQuery.Event( type, typeof event === "object" && event );
// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
event.isTrigger = onlyHandlers ? 2 : 3;
event.namespace = namespaces.join(".");
event.namespace_re = event.namespace ?
new RegExp( "(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)" ) :
null;
// Clean up the event in case it is being reused
event.result = undefined;
if ( !event.target ) {
event.target = elem;
}
// Clone any incoming data and prepend the event, creating the handler arg list
data = data == null ?
[ event ] :
jQuery.makeArray( data, [ event ] );
// Allow special events to draw outside the lines
special = jQuery.event.special[ type ] || {};
if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
return;
}
// Determine event propagation path in advance, per W3C events spec (#9951)
// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {
bubbleType = special.delegateType || type;
if ( !rfocusMorph.test( bubbleType + type ) ) {
cur = cur.parentNode;
}
for ( ; cur; cur = cur.parentNode ) {
eventPath.push( cur );
tmp = cur;
}
// Only add window if we got to document (e.g., not plain obj or detached DOM)
if ( tmp === (elem.ownerDocument || document) ) {
eventPath.push( tmp.defaultView || tmp.parentWindow || window );
}
}
// Fire handlers on the event path
i = 0;
while ( (cur = eventPath[i++]) && !event.isPropagationStopped() ) {
event.type = i > 1 ?
bubbleType :
special.bindType || type;
// jQuery handler
handle = ( data_priv.get( cur, "events" ) || {} )[ event.type ] && data_priv.get( cur, "handle" );
if ( handle ) {
handle.apply( cur, data );
}
// Native handler
handle = ontype && cur[ ontype ];
if ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === false ) {
event.preventDefault();
}
}
event.type = type;
// If nobody prevented the default action, do it now
if ( !onlyHandlers && !event.isDefaultPrevented() ) {
if ( (!special._default || special._default.apply( eventPath.pop(), data ) === false) &&
jQuery.acceptData( elem ) ) {
// Call a native DOM method on the target with the same name name as the event.
// Don't do default actions on window, that's where global variables be (#6170)
if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {
// Don't re-trigger an onFOO event when we call its FOO() method
tmp = elem[ ontype ];
if ( tmp ) {
elem[ ontype ] = null;
}
// Prevent re-triggering of the same event, since we already bubbled it above
jQuery.event.triggered = type;
elem[ type ]();
jQuery.event.triggered = undefined;
if ( tmp ) {
elem[ ontype ] = tmp;
}
}
}
}
return event.result;
},
dispatch: function( event ) {
// Make a writable jQuery.Event from the native event object
event = jQuery.event.fix( event );
var i, j, ret, matched, handleObj,
handlerQueue = [],
args = core_slice.call( arguments ),
handlers = ( data_priv.get( this, "events" ) || {} )[ event.type ] || [],
special = jQuery.event.special[ event.type ] || {};
// Use the fix-ed jQuery.Event rather than the (read-only) native event
args[0] = event;
event.delegateTarget = this;
// Call the preDispatch hook for the mapped type, and let it bail if desired
if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
return;
}
// Determine handlers
handlerQueue = jQuery.event.handlers.call( this, event, handlers );
// Run delegates first; they may want to stop propagation beneath us
i = 0;
while ( (matched = handlerQueue[ i++ ]) && !event.isPropagationStopped() ) {
event.currentTarget = matched.elem;
j = 0;
while ( (handleObj = matched.handlers[ j++ ]) && !event.isImmediatePropagationStopped() ) {
// Triggered event must either 1) have no namespace, or
// 2) have namespace(s) a subset or equal to those in the bound event (both can have no namespace).
if ( !event.namespace_re || event.namespace_re.test( handleObj.namespace ) ) {
event.handleObj = handleObj;
event.data = handleObj.data;
ret = ( (jQuery.event.special[ handleObj.origType ] || {}).handle || handleObj.handler )
.apply( matched.elem, args );
if ( ret !== undefined ) {
if ( (event.result = ret) === false ) {
event.preventDefault();
event.stopPropagation();
}
}
}
}
}
// Call the postDispatch hook for the mapped type
if ( special.postDispatch ) {
special.postDispatch.call( this, event );
}
return event.result;
},
handlers: function( event, handlers ) {
var i, matches, sel, handleObj,
handlerQueue = [],
delegateCount = handlers.delegateCount,
cur = event.target;
// Find delegate handlers
// Black-hole SVG