[
{
"path": ".gitignore",
"content": "*~\nnode_modules\ncoverage\n.nyc_output\nbuild\n"
},
{
"path": ".travis.yml",
"content": "language: node_js\ndist: bionic\nnode_js:\n - '10.13.0'\n - '10'\n - '12'\n - 'node'\n"
},
{
"path": "CHANGELOG.md",
"content": "## [1.3.3](https://github.com/soldair/node-qrcode/compare/v1.3.2...v1.3.3) (2019-01-16)\n\nfixing security vulnerabillities reported by users of snyk and `npm audit` major\nversions of deps were bumped and should only impact development of qrcode.\n\n\n## [1.3.2](https://github.com/soldair/node-qrcode/compare/v1.3.0...v1.3.2) (2019-01-16)\n\n\n### Bug Fixes\n\n* forgot can-promise replacement ([2514445](https://github.com/soldair/node-qrcode/commit/2514445))\n* replacing can-promise ([8197d78](https://github.com/soldair/node-qrcode/commit/8197d78))\n* security vulnerabillities and a ref to new Buffer ([a40c757](https://github.com/soldair/node-qrcode/commit/a40c757))\n\n\n\n# [1.3.0](https://github.com/soldair/node-qrcode/compare/v1.2.1...v1.3.0) (2018-10-01)\n\n\n\n## [1.2.1](https://github.com/soldair/node-qrcode/compare/v1.2.0...v1.2.1) (2018-06-06)\n\n\n\n# [1.2.0](https://github.com/soldair/node-qrcode/compare/v1.1.0...v1.2.0) (2017-12-28)\n\n\n\n# [1.1.0](https://github.com/soldair/node-qrcode/compare/v1.0.1...v1.1.0) (2017-12-28)\n\n\n\n## [1.0.1](https://github.com/soldair/node-qrcode/compare/v1.0.0...v1.0.1) (2017-12-27)\n\n\n\n# [1.0.0](https://github.com/soldair/node-qrcode/compare/v0.9.0...v1.0.0) (2017-11-08)\n\nno breaking changes. promoting to a stable semver\n\n# [0.9.0](https://github.com/soldair/node-qrcode/compare/v0.8.2...v0.9.0) (2017-07-22)\n\n\n\n## [0.8.2](https://github.com/soldair/node-qrcode/compare/v0.8.0...v0.8.2) (2017-05-23)\n\n\n\n# [0.8.0](https://github.com/soldair/node-qrcode/compare/v0.7.1...v0.8.0) (2017-03-30)\n\n\n\n## [0.7.1](https://github.com/soldair/node-qrcode/compare/v0.7.0...v0.7.1) (2017-03-17)\n\n\n\n# [0.7.0](https://github.com/soldair/node-qrcode/compare/v0.6.0...v0.7.0) (2017-02-27)\n\n\n\n# [0.6.0](https://github.com/soldair/node-qrcode/compare/v0.5.0...v0.6.0) (2017-02-24)\n\n\n\n# [0.5.0](https://github.com/soldair/node-qrcode/compare/v0.4.4...v0.5.0) (2016-09-19)\n\n\n\n## [0.4.4](https://github.com/soldair/node-qrcode/compare/v0.4.3...v0.4.4) (2016-08-25)\n\n\n\n## [0.4.3](https://github.com/soldair/node-qrcode/compare/v0.4.0...v0.4.3) (2016-08-16)\n\n\n\n# [0.4.0](https://github.com/soldair/node-qrcode/compare/0.2.10...v0.4.0) (2015-09-17)\n\n\n\n## [0.1.1](https://github.com/soldair/node-qrcode/compare/v0.1.0...v0.1.1) (2011-04-17)\n\n\n\n# [0.1.0](https://github.com/soldair/node-qrcode/compare/0.0.3...v0.1.0) (2011-04-17)\n\n\n\n## [0.0.3](https://github.com/soldair/node-qrcode/compare/0.0.2...0.0.3) (2011-02-27)\n\n\n\n## 0.0.2 (2010-12-27)\n\n\n\n"
},
{
"path": "CODE_OF_CONDUCT.md",
"content": "# Contributor Covenant Code of Conduct\n\n## Our Pledge\n\nIn the interest of fostering an open and welcoming environment, we as\ncontributors and maintainers pledge to making participation in our project and\nour community a harassment-free experience for everyone, regardless of age, body\nsize, disability, ethnicity, sex characteristics, gender identity and expression,\nlevel of experience, education, socio-economic status, nationality, personal\nappearance, race, religion, or sexual identity and orientation.\n\n## Our Standards\n\nExamples of behavior that contributes to creating a positive environment\ninclude:\n\n* Using welcoming and inclusive language\n* Being respectful of differing viewpoints and experiences\n* Gracefully accepting constructive criticism\n* Focusing on what is best for the community\n* Showing empathy towards other community members\n\nExamples of unacceptable behavior by participants include:\n\n* The use of sexualized language or imagery and unwelcome sexual attention or\n advances\n* Trolling, insulting/derogatory comments, and personal or political attacks\n* Public or private harassment\n* Publishing others' private information, such as a physical or electronic\n address, without explicit permission\n* Other conduct which could reasonably be considered inappropriate in a\n professional setting\n\n## Our Responsibilities\n\nProject maintainers are responsible for clarifying the standards of acceptable\nbehavior and are expected to take appropriate and fair corrective action in\nresponse to any instances of unacceptable behavior.\n\nProject maintainers have the right and responsibility to remove, edit, or\nreject comments, commits, code, wiki edits, issues, and other contributions\nthat are not aligned to this Code of Conduct, or to ban temporarily or\npermanently any contributor for other behaviors that they deem inappropriate,\nthreatening, offensive, or harmful.\n\n## Scope\n\nThis Code of Conduct applies both within project spaces and in public spaces\nwhen an individual is representing the project or its community. Examples of\nrepresenting a project or community include using an official project e-mail\naddress, posting via an official social media account, or acting as an appointed\nrepresentative at an online or offline event. Representation of a project may be\nfurther defined and clarified by project maintainers.\n\n## Enforcement\n\nInstances of abusive, harassing, or otherwise unacceptable behavior may be\nreported by contacting the project team at soldair+qrcode@gmail.com. All\ncomplaints will be reviewed and investigated and will result in a response that\nis deemed necessary and appropriate to the circumstances. The project team is\nobligated to maintain confidentiality with regard to the reporter of an incident.\nFurther details of specific enforcement policies may be posted separately.\n\nProject maintainers who do not follow or enforce the Code of Conduct in good\nfaith may face temporary or permanent repercussions as determined by other\nmembers of the project's leadership.\n\n## Attribution\n\nThis Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,\navailable at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html\n\n[homepage]: https://www.contributor-covenant.org\n\nFor answers to common questions about this code of conduct, see\nhttps://www.contributor-covenant.org/faq\n"
},
{
"path": "CONTRIBUTING.md",
"content": "# qrcode Contributing Guidelines\n\n- Always search for a related issue before starting a new issue.\n- Always choose a concise, helpful issue name.\n- Always stay on-topic. If you've got a new bug report or feature request, put it in its own issue.\n- Always be polite to other people.\n- Never post private information, such as torrent or tracker names, IP addresses, etc.\n\nIssues that break the rules may be deleted and locked without warning.\n\n## qrcode is an OPEN Open Source Project\n\nIndividuals making significant and valuable contributions are given commit-access to the project to contribute as they see fit. This project is more like an open wiki than a standard guarded open source project.\n\n## Rules\n\nThere are a few basic ground-rules for contributors:\n\n1. **No `--force` pushes** or modifying the Git history in any way.\n1. **External API changes and significant modifications** should be subject to a **pull request** to solicit feedback from other contributors.\n1. Pull requests to solicit feedback are *encouraged* for any other non-trivial contribution but left to the discretion of the contributor.\n1. Use a non-`master` branch for ongoing work.\n1. Contributors should attempt to adhere to the prevailing code style.\n1. Run `npm test` locally before submitting your PR to catch easy-to-miss style & testing issues\n\n## Releases\n\nDeclaring formal releases remains the prerogative of the project maintainer.\n\n## Changes to this arrangement\n\n*Thanks to [Rod Vagg](https://github.com/rvagg) and the [LevelUP](https://github.com/rvagg/node-levelup) project for coming up with this model of open source contribution.*\n"
},
{
"path": "README.md",
"content": "# node-qrcode\n> QR code/2d barcode generator.\n\n[](http://travis-ci.org/soldair/node-qrcode)\n[](https://www.npmjs.com/package/qrcode)\n[](https://www.npmjs.com/package/qrcode)\n[](https://github.com/soldair/node-qrcode/blob/master/license)\n\n- [Highlights](#highlights)\n- [Installation](#installation)\n- [Usage](#usage)\n- [Error correction level](#error-correction-level)\n- [QR Code capacity](#qr-code-capacity)\n- [Encoding Modes](#encoding-modes)\n- [Binary data](#binary-data)\n- [Multibyte characters](#multibyte-characters)\n- [API](#api)\n- [GS1 QR Codes](#gs1-qr-codes)\n- [Credits](#credits)\n- [License](#license)\n\n## Highlights\n- Works on server and client (and react native with svg)\n- CLI utility\n- Save QR code as image\n- Support for Numeric, Alphanumeric, Kanji and Byte mode\n- Support for mixed modes\n- Support for chinese, cyrillic, greek and japanese characters\n- Support for multibyte characters (like emojis :smile:)\n- Auto generates optimized segments for best data compression and smallest QR Code size\n- App agnostic readability, QR Codes by definition are app agnostic\n\n## Installation\nInside your project folder do:\n\n```shell\nnpm install --save qrcode\n```\n\nor, install it globally to use `qrcode` from the command line to save qrcode images or generate ones you can view in your terminal.\n\n```shell\nnpm install -g qrcode\n```\n\n## Usage\n### CLI\n\n```\nUsage: qrcode [options] \n\nQR Code options:\n -v, --qversion QR Code symbol version (1 - 40) [number]\n -e, --error Error correction level [choices: \"L\", \"M\", \"Q\", \"H\"]\n -m, --mask Mask pattern (0 - 7) [number]\n\nRenderer options:\n -t, --type Output type [choices: \"png\", \"svg\", \"utf8\"]\n -w, --width Image width (px) [number]\n -s, --scale Scale factor [number]\n -q, --qzone Quiet zone size [number]\n -l, --lightcolor Light RGBA hex color\n -d, --darkcolor Dark RGBA hex color\n --small Output smaller QR code to terminal [boolean]\n\nOptions:\n -o, --output Output file\n -h, --help Show help [boolean]\n --version Show version number [boolean]\n\nExamples:\n qrcode \"some text\" Draw in terminal window\n qrcode -o out.png \"some text\" Save as png image\n qrcode -d F00 -o out.png \"some text\" Use red as foreground color\n```\nIf not specified, output type is guessed from file extension. \nRecognized extensions are `png`, `svg` and `txt`.\n\n### Browser\n`node-qrcode` can be used in browser through module bundlers like [Browserify](https://github.com/substack/node-browserify) and [Webpack](https://github.com/webpack/webpack) or by including the precompiled bundle present in `build/` folder.\n\n#### Module bundlers\n```html\n\n\n \n \n \n \n\n```\n\n```javascript\n// index.js -> bundle.js\nvar QRCode = require('qrcode')\nvar canvas = document.getElementById('canvas')\n\nQRCode.toCanvas(canvas, 'sample text', function (error) {\n if (error) console.error(error)\n console.log('success!');\n})\n```\n\n#### Precompiled bundle\n```html\n\n\n\n\n```\n\nIf you install through `npm`, precompiled files will be available in `node_modules/qrcode/build/` folder.\n\nThe precompiled bundle have support for [Internet Explorer 10+, Safari 5.1+, and all evergreen browsers](https://browserl.ist/?q=defaults%2C+IE+%3E%3D+10%2C+Safari+%3E%3D+5.1).\n\n### NodeJS\nRequire the module `qrcode`\n\n```javascript\nvar QRCode = require('qrcode')\n\nQRCode.toDataURL('I am a pony!', function (err, url) {\n console.log(url)\n})\n```\n\nrender a qrcode for the terminal\n```js\nvar QRCode = require('qrcode')\n\nQRCode.toString('I am a pony!',{type:'terminal'}, function (err, url) {\n console.log(url)\n})\n```\n\n### ES6/ES7\nPromises and Async/Await can be used in place of callback function.\n\n```javascript\nimport QRCode from 'qrcode'\n\n// With promises\nQRCode.toDataURL('I am a pony!')\n .then(url => {\n console.log(url)\n })\n .catch(err => {\n console.error(err)\n })\n\n// With async/await\nconst generateQR = async text => {\n try {\n console.log(await QRCode.toDataURL(text))\n } catch (err) {\n console.error(err)\n }\n}\n```\n\n## Error correction level\nError correction capability allows to successfully scan a QR Code even if the symbol is dirty or damaged.\nFour levels are available to choose according to the operating environment.\n\nHigher levels offer a better error resistance but reduce the symbol's capacity. \nIf the chances that the QR Code symbol may be corrupted are low (for example if it is showed through a monitor)\nis possible to safely use a low error level such as `Low` or `Medium`.\n\nPossible levels are shown below:\n\n| Level | Error resistance |\n|------------------|:----------------:|\n| **L** (Low) | **~7%** |\n| **M** (Medium) | **~15%** |\n| **Q** (Quartile) | **~25%** |\n| **H** (High) | **~30%** |\n\nThe percentage indicates the maximum amount of damaged surface after which the symbol becomes unreadable.\n\nError level can be set through `options.errorCorrectionLevel` property. \nIf not specified, the default value is `M`.\n\n```javascript\nQRCode.toDataURL('some text', { errorCorrectionLevel: 'H' }, function (err, url) {\n console.log(url)\n})\n```\n\n## QR Code capacity\nCapacity depends on symbol version and error correction level. Also encoding modes may influence the amount of storable data.\n\nThe QR Code versions range from version **1** to version **40**. \nEach version has a different number of modules (black and white dots), which define the symbol's size.\nFor version 1 they are `21x21`, for version 2 `25x25` e so on.\nHigher is the version, more are the storable data, and of course bigger will be the QR Code symbol.\n\nThe table below shows the maximum number of storable characters in each encoding mode and for each error correction level.\n\n| Mode | L | M | Q | H |\n|--------------|------|------|------|------|\n| Numeric | 7089 | 5596 | 3993 | 3057 |\n| Alphanumeric | 4296 | 3391 | 2420 | 1852 |\n| Byte | 2953 | 2331 | 1663 | 1273 |\n| Kanji | 1817 | 1435 | 1024 | 784 |\n\n**Note:** Maximum characters number can be different when using [Mixed modes](#mixed-modes).\n\nQR Code version can be set through `options.version` property. \nIf no version is specified, the more suitable value will be used. Unless a specific version is required, this option is not needed.\n\n```javascript\nQRCode.toDataURL('some text', { version: 2 }, function (err, url) {\n console.log(url)\n})\n```\n\n## Encoding modes\nModes can be used to encode a string in a more efficient way. \nA mode may be more suitable than others depending on the string content.\nA list of supported modes are shown in the table below:\n\n| Mode | Characters | Compression |\n|--------------|-----------------------------------------------------------|-------------------------------------------|\n| Numeric | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 | 3 characters are represented by 10 bits |\n| Alphanumeric | 0–9, A–Z (upper-case only), space, $, %, *, +, -, ., /, : | 2 characters are represented by 11 bits |\n| Kanji | Characters from the Shift JIS system based on JIS X 0208 | 2 kanji are represented by 13 bits |\n| Byte | Characters from the ISO/IEC 8859-1 character set | Each characters are represented by 8 bits |\n\nChoose the right mode may be tricky if the input text is unknown. \nIn these cases **Byte** mode is the best choice since all characters can be encoded with it. (See [Multibyte characters](#multibyte-characters)) \nHowever, if the QR Code reader supports mixed modes, using [Auto mode](#auto-mode) may produce better results.\n\n### Mixed modes\nMixed modes are also possible. A QR code can be generated from a series of segments having different encoding modes to optimize the data compression. \nHowever, switching from a mode to another has a cost which may lead to a worst result if it's not taken into account.\nSee [Manual mode](#manual-mode) for an example of how to specify segments with different encoding modes.\n\n### Auto mode\nBy **default**, automatic mode selection is used. \nThe input string is automatically splitted in various segments optimized to produce the shortest possible bitstream using mixed modes. \nThis is the preferred way to generate the QR Code.\n\nFor example, the string **ABCDE12345678?A1A** will be splitted in 3 segments with the following modes:\n\n| Segment | Mode |\n|----------|--------------|\n| ABCDE | Alphanumeric |\n| 12345678 | Numeric |\n| ?A1A | Byte |\n\nAny other combinations of segments and modes will result in a longer bitstream. \nIf you need to keep the QR Code size small, this mode will produce the best results.\n\n### Manual mode\nIf auto mode doesn't work for you or you have specific needs, is also possible to manually specify each segment with the relative mode.\nIn this way no segment optimizations will be applied under the hood. \nSegments list can be passed as an array of object:\n\n```javascript\n var QRCode = require('qrcode')\n\n var segs = [\n { data: 'ABCDEFG', mode: 'alphanumeric' },\n { data: '0123456', mode: 'numeric' }\n ]\n\n QRCode.toDataURL(segs, function (err, url) {\n console.log(url)\n })\n```\n\n### Kanji mode\nWith kanji mode is possible to encode characters from the Shift JIS system in an optimized way. \nUnfortunately, there isn't a way to calculate a Shifted JIS values from, for example, a character encoded in UTF-8, for this reason a conversion table from the input characters to the SJIS values is needed. \nThis table is not included by default in the bundle to keep the size as small as possible.\n\nIf your application requires kanji support, you will need to pass a function that will take care of converting the input characters to appropriate values.\n\nAn helper method is provided by the lib through an optional file that you can include as shown in the example below.\n\n**Note:** Support for Kanji mode is only needed if you want to benefit of the data compression, otherwise is still possible to encode kanji using Byte mode (See [Multibyte characters](#multibyte-characters)).\n\n```javascript\n var QRCode = require('qrcode')\n var toSJIS = require('qrcode/helper/to-sjis')\n\n QRCode.toDataURL(kanjiString, { toSJISFunc: toSJIS }, function (err, url) {\n console.log(url)\n })\n```\n\nWith precompiled bundle:\n\n```html\n\n\n\n\n\n```\n\n## Binary data\nQR Codes can hold arbitrary byte-based binary data. If you attempt to create a binary QR Code by first converting the data to a JavaScript string, it will fail to encode propery because string encoding adds additional bytes. Instead, you must pass a [`Uint8ClampedArray`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8ClampedArray) or compatible array, or a Node [Buffer](https://nodejs.org/api/buffer.html), as follows:\n\n```javascript\n// Regular array example\n// WARNING: Element values will be clamped to 0-255 even if your data contains higher values.\nconst QRCode = require('qrcode')\nQRCode.toFile(\n 'foo.png',\n [{ data: [253,254,255], mode: 'byte' }],\n ...options...,\n ...callback...\n)\n```\n\n```javascript\n// Uint8ClampedArray example\nconst QRCode = require('qrcode')\n\nQRCode.toFile(\n 'foo.png',\n [{ data: new Uint8ClampedArray([253,254,255]), mode: 'byte' }],\n ...options...,\n ...callback...\n)\n```\n\n```javascript\n// Node Buffer example\n// WARNING: Element values will be clamped to 0-255 even if your data contains higher values.\nconst QRCode = require('qrcode')\n\nQRCode.toFile(\n 'foo.png',\n [{ data: Buffer.from([253,254,255]), mode: 'byte' }],\n ...options...,\n ...callback...\n)\n```\n\nTypeScript users: if you are using [@types/qrcode](https://www.npmjs.com/package/@types/qrcode), you will need to add a `// @ts-ignore` above the data segment because it expects `data: string`.\n\n## Multibyte characters\nSupport for multibyte characters isn't present in the initial QR Code standard, but is possible to encode UTF-8 characters in Byte mode.\n\nQR Codes provide a way to specify a different type of character set through ECI (Extended Channel Interpretation), but it's not fully implemented in this lib yet.\n\nMost QR Code readers, however, are able to recognize multibyte characters even without ECI.\n\nNote that a single Kanji/Kana or Emoji can take up to 4 bytes.\n\n## API\nBrowser:\n- [create()](#createtext-options)\n- [toCanvas()](#tocanvascanvaselement-text-options-cberror)\n- [toDataURL()](#todataurltext-options-cberror-url)\n- [toString()](#tostringtext-options-cberror-string)\n\nServer:\n- [create()](#createtext-options)\n- [toCanvas()](#tocanvascanvas-text-options-cberror)\n- [toDataURL()](#todataurltext-options-cberror-url-1)\n- [toString()](#tostringtext-options-cberror-string-1)\n- [toFile()](#tofilepath-text-options-cberror)\n- [toFileStream()](#tofilestreamstream-text-options)\n\n### Browser API\n#### `create(text, [options])`\nCreates QR Code symbol and returns a qrcode object.\n\n##### `text`\nType: `String|Array`\n\nText to encode or a list of objects describing segments.\n\n##### `options`\nSee [QR Code options](#qr-code-options).\n\n##### `returns`\nType: `Object`\n\n```javascript\n// QRCode object\n{\n modules, // Bitmatrix class with modules data\n version, // Calculated QR Code version\n errorCorrectionLevel, // Error Correction Level\n maskPattern, // Calculated Mask pattern\n segments // Generated segments\n}\n```\n\n \n\n#### `toCanvas(canvasElement, text, [options], [cb(error)])`\n#### `toCanvas(text, [options], [cb(error, canvas)])`\nDraws qr code symbol to canvas. \nIf `canvasElement` is omitted a new canvas is returned.\n\n##### `canvasElement`\nType: `DOMElement`\n\nCanvas where to draw QR Code.\n\n##### `text`\nType: `String|Array`\n\nText to encode or a list of objects describing segments.\n\n##### `options`\nSee [Options](#options).\n\n##### `cb`\nType: `Function`\n\nCallback function called on finish.\n\n##### Example\n```javascript\nQRCode.toCanvas('text', { errorCorrectionLevel: 'H' }, function (err, canvas) {\n if (err) throw err\n\n var container = document.getElementById('container')\n container.appendChild(canvas)\n})\n```\n\n \n\n#### `toDataURL(text, [options], [cb(error, url)])`\n#### `toDataURL(canvasElement, text, [options], [cb(error, url)])`\nReturns a Data URI containing a representation of the QR Code image. \nIf provided, `canvasElement` will be used as canvas to generate the data URI.\n\n##### `canvasElement`\nType: `DOMElement`\n\nCanvas where to draw QR Code.\n\n##### `text`\nType: `String|Array`\n\nText to encode or a list of objects describing segments.\n\n##### `options`\n- ###### `type`\n Type: `String` \n Default: `image/png`\n\n Data URI format. \n Possible values are: `image/png`, `image/jpeg`, `image/webp`. \n\n- ###### `rendererOpts.quality`\n Type: `Number` \n Default: `0.92`\n\n A Number between `0` and `1` indicating image quality if the requested type is `image/jpeg` or `image/webp`.\n\nSee [Options](#options) for other settings.\n\n##### `cb`\nType: `Function`\n\nCallback function called on finish.\n\n##### Example\n```javascript\nvar opts = {\n errorCorrectionLevel: 'H',\n type: 'image/jpeg',\n quality: 0.3,\n margin: 1,\n color: {\n dark:\"#010599FF\",\n light:\"#FFBF60FF\"\n }\n}\n\nQRCode.toDataURL('text', opts, function (err, url) {\n if (err) throw err\n\n var img = document.getElementById('image')\n img.src = url\n})\n```\n \n\n#### `toString(text, [options], [cb(error, string)])`\n\nReturns a string representation of the QR Code. \n\n\n##### `text`\nType: `String|Array`\n\nText to encode or a list of objects describing segments.\n\n##### `options`\n- ###### `type`\n Type: `String` \n Default: `utf8`\n\n Output format. \n Possible values are: `terminal`,`utf8`, and `svg`.\n\nSee [Options](#options) for other settings.\n\n##### `cb`\nType: `Function`\n\nCallback function called on finish.\n\n##### Example\n```javascript\nQRCode.toString('http://www.google.com', function (err, string) {\n if (err) throw err\n console.log(string)\n})\n```\n\n \n\n\n### Server API\n#### `create(text, [options])`\nSee [create](#createtext-options).\n\n \n\n#### `toCanvas(canvas, text, [options], [cb(error)])`\nDraws qr code symbol to [node canvas](https://github.com/Automattic/node-canvas).\n\n##### `text`\nType: `String|Array`\n\nText to encode or a list of objects describing segments.\n\n##### `options`\nSee [Options](#options).\n\n##### `cb`\nType: `Function`\n\nCallback function called on finish.\n\n \n\n#### `toDataURL(text, [options], [cb(error, url)])`\nReturns a Data URI containing a representation of the QR Code image. \nOnly works with `image/png` type for now.\n\n##### `text`\nType: `String|Array`\n\nText to encode or a list of objects describing segments.\n\n##### `options`\nSee [Options](#options) for other settings.\n\n##### `cb`\nType: `Function`\n\nCallback function called on finish.\n\n \n\n#### `toString(text, [options], [cb(error, string)])`\nReturns a string representation of the QR Code. \nIf choosen output format is `svg` it will returns a string containing xml code.\n\n##### `text`\nType: `String|Array`\n\nText to encode or a list of objects describing segments.\n\n##### `options`\n- ###### `type`\n Type: `String` \n Default: `utf8`\n\n Output format. \n Possible values are: `utf8`, `svg`, `terminal`.\n\nSee [Options](#options) for other settings.\n\n##### `cb`\nType: `Function`\n\nCallback function called on finish.\n\n##### Example\n```javascript\nQRCode.toString('http://www.google.com', function (err, string) {\n if (err) throw err\n console.log(string)\n})\n```\n\n \n\n#### `toFile(path, text, [options], [cb(error)])`\nSaves QR Code to image file. \nIf `options.type` is not specified, the format will be guessed from file extension. \nRecognized extensions are `png`, `svg`, `txt`.\n\n##### `path`\nType: `String`\n\nPath where to save the file.\n\n##### `text`\nType: `String|Array`\n\nText to encode or a list of objects describing segments.\n\n##### `options`\n- ###### `type`\n Type: `String` \n Default: `png`\n\n Output format. \n Possible values are: `png`, `svg`, `utf8`.\n\n- ###### `rendererOpts.deflateLevel` **(png only)**\n Type: `Number` \n Default: `9`\n\n Compression level for deflate.\n\n- ###### `rendererOpts.deflateStrategy` **(png only)**\n Type: `Number` \n Default: `3`\n\n Compression strategy for deflate.\n\nSee [Options](#options) for other settings.\n\n##### `cb`\nType: `Function`\n\nCallback function called on finish.\n\n##### Example\n```javascript\nQRCode.toFile('path/to/filename.png', 'Some text', {\n color: {\n dark: '#00F', // Blue dots\n light: '#0000' // Transparent background\n }\n}, function (err) {\n if (err) throw err\n console.log('done')\n})\n```\n\n \n\n#### `toFileStream(stream, text, [options])`\nWrites QR Code image to stream. Only works with `png` format for now.\n\n##### `stream`\nType: `stream.Writable`\n\nNode stream.\n\n##### `text`\nType: `String|Array`\n\nText to encode or a list of objects describing segments.\n\n##### `options`\nSee [Options](#options).\n\n \n\n### Options\n\n#### QR Code options\n##### `version`\n Type: `Number` \n\n QR Code version. If not specified the more suitable value will be calculated.\n\n##### `errorCorrectionLevel`\n Type: `String` \n Default: `M`\n\n Error correction level. \n Possible values are `low, medium, quartile, high` or `L, M, Q, H`.\n\n##### `maskPattern`\n Type: `Number` \n\n Mask pattern used to mask the symbol. \n Possible values are `0`, `1`, `2`, `3`, `4`, `5`, `6`, `7`. \n If not specified the more suitable value will be calculated.\n\n##### `toSJISFunc`\n Type: `Function` \n\n Helper function used internally to convert a kanji to its Shift JIS value. \n Provide this function if you need support for Kanji mode.\n\n#### Renderers options\n##### `margin`\n Type: `Number` \n Default: `4`\n\n Define how much wide the quiet zone should be.\n\n##### `scale`\n Type: `Number` \n Default: `4`\n\n Scale factor. A value of `1` means 1px per modules (black dots).\n\n##### `small`\n Type: `Boolean` \n Default: `false`\n\n Relevant only for terminal renderer. Outputs smaller QR code.\n\n##### `width`\n Type: `Number` \n\n Forces a specific width for the output image. \n If width is too small to contain the qr symbol, this option will be ignored. \n Takes precedence over `scale`.\n\n##### `color.dark`\nType: `String` \nDefault: `#000000ff`\n\nColor of dark module. Value must be in hex format (RGBA). \nNote: dark color should always be darker than `color.light`.\n\n##### `color.light`\nType: `String` \nDefault: `#ffffffff`\n\nColor of light module. Value must be in hex format (RGBA). \n\n \n\n## GS1 QR Codes\nThere was a real good discussion here about them. but in short any qrcode generator will make gs1 compatible qrcodes, but what defines a gs1 qrcode is a header with metadata that describes your gs1 information.\n\nhttps://github.com/soldair/node-qrcode/issues/45\n\n\n## Credits\nThis lib is based on \"QRCode for JavaScript\" which Kazuhiko Arase thankfully MIT licensed.\n\n## License\n[MIT](https://github.com/soldair/node-qrcode/blob/master/license)\n\nThe word \"QR Code\" is registered trademark of: \nDENSO WAVE INCORPORATED\n"
},
{
"path": "bin/qrcode",
"content": "#!/usr/bin/env node\nvar yargs = require('yargs')\nvar qr = require('../lib')\n\nfunction save (file, text, options) {\n qr.toFile(file, text, options, function (err, data) {\n if (err) {\n console.error('Error:', err.message)\n process.exit(1)\n }\n\n console.log('saved qrcode to: ' + file + '\\n')\n })\n}\n\nfunction print (text, options) {\n options.type = 'terminal'\n qr.toString(text, options, function (err, text) {\n if (err) {\n console.error('Error:', err.message)\n process.exit(1)\n }\n\n console.log(text)\n })\n}\n\nfunction parseOptions (args) {\n return {\n version: args.qversion,\n errorCorrectionLevel: args.error,\n type: args.type,\n small: !!args.small,\n inverse: !!args.inverse,\n maskPattern: args.mask,\n margin: args.qzone,\n width: args.width,\n scale: args.scale,\n color: {\n light: args.lightcolor,\n dark: args.darkcolor\n }\n }\n}\n\nfunction processInputs (text, opts) {\n if (!text.length) {\n yargs.showHelp()\n process.exit(1)\n }\n\n if (opts.output) {\n save(opts.output, text, parseOptions(opts))\n } else {\n print(text, parseOptions(opts))\n }\n}\n\nvar argv = yargs\n .detectLocale(false)\n .usage('Usage: $0 [options] ')\n .option('v', {\n alias: 'qversion',\n description: 'QR Code symbol version (1 - 40)',\n group: 'QR Code options:',\n type: 'number'\n })\n .option('e', {\n alias: 'error',\n description: 'Error correction level',\n choices: ['L', 'M', 'Q', 'H'],\n group: 'QR Code options:'\n })\n .option('m', {\n alias: 'mask',\n description: 'Mask pattern (0 - 7)',\n group: 'QR Code options:',\n type: 'number'\n })\n .option('t', {\n alias: 'type',\n description: 'Output type',\n choices: ['png', 'svg', 'utf8'],\n implies: 'output',\n group: 'Renderer options:'\n })\n .option('i', {\n alias: 'inverse',\n type: 'boolean',\n description: 'Invert colors',\n group: 'Renderer options:'\n })\n .option('w', {\n alias: 'width',\n description: 'Image width (px)',\n conflicts: 'scale',\n group: 'Renderer options:',\n type: 'number'\n })\n .option('s', {\n alias: 'scale',\n description: 'Scale factor',\n conflicts: 'width',\n group: 'Renderer options:',\n type: 'number'\n })\n .option('q', {\n alias: 'qzone',\n description: 'Quiet zone size',\n group: 'Renderer options:',\n type: 'number'\n })\n .option('l', {\n alias: 'lightcolor',\n description: 'Light RGBA hex color',\n group: 'Renderer options:'\n })\n .option('d', {\n alias: 'darkcolor',\n description: 'Dark RGBA hex color',\n group: 'Renderer options:'\n })\n .option('small', {\n type: 'boolean',\n description: 'Output smaller QR code to terminal',\n conflicts: 'type',\n group: 'Renderer options:'\n })\n .option('o', {\n alias: 'output',\n description: 'Output file'\n })\n .help('h')\n .alias('h', 'help')\n .version()\n .example('$0 \"some text\"', 'Draw in terminal window')\n .example('$0 -o out.png \"some text\"', 'Save as png image')\n .example('$0 -d F00 -o out.png \"some text\"', 'Use red as foreground color')\n .parserConfiguration({'parse-numbers': false})\n .argv\n\nif (process.stdin.isTTY) {\n processInputs(argv._.join(' '), argv)\n} else {\n var text = ''\n process.stdin.setEncoding('utf8')\n process.stdin.on('readable', function () {\n var chunk = process.stdin.read()\n if (chunk !== null) {\n text += chunk\n }\n })\n\n process.stdin.on('end', function () {\n // this process can be run as a command outside of a tty so if there was no\n // data on stdin read from argv\n processInputs(text.length?text:argv._.join(' '), argv)\n })\n}\n"
},
{
"path": "examples/cli.js",
"content": "const QRCode = require('../lib')\n\nQRCode.toString('yo yo yo', function (error, data) {\n if (error) {\n throw new Error(error)\n }\n\n console.log(data)\n})\n"
},
{
"path": "examples/clientside.html",
"content": "\n\n\n\n \n \n client side test for node-qrcode\n \n \n \n \n\n\n\n
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},
{
"path": "examples/clientsideserver.js",
"content": "const express = require('express')\nconst app = express()// .createServer()\nconst http = require('http')\nconst fs = require('fs')\nconst QRCode = require('../lib')\nconst canvasutil = require('canvasutil')\nconst { createCanvas, loadImage } = require('canvas')\n\nconst path = require('path')\n\n// app.use(express.methodOverride())\n// app.use(express.bodyParser())\n// app.use(app.router)\n// app.use(express.static(path.resolve(__dirname, '..')))\n\napp.get('/qrcode.js', (req, res) => {\n res.set('content-type', 'text/javascript')\n fs.createReadStream(path.join(__dirname, '..', 'build', 'qrcode.js')).pipe(res)\n})\n\napp.get('/qrcode.tosjis.js', (req, res) => {\n res.set('content-type', 'text/javascript')\n fs.createReadStream(path.join(__dirname, '..', 'build', 'qrcode.tosjis.js')).pipe(res)\n})\n\napp.get('/', function (req, res) {\n fs.readFile(path.join(__dirname, 'clientside.html'), function (err, data) {\n res.send(data ? data.toString() : err)\n })\n})\n\nconst effectHandlers = {}\n\napp.get('/generate', function (req, res) {\n const q = req.query || {}\n\n let effect = q.effect || 'plain'\n if (!effectHandlers[effect]) {\n effect = 'plain'\n }\n\n effectHandlers[effect](q, function (error, canvas) {\n if (!error) {\n canvas.toBuffer(function (err, buf) {\n if (!err) {\n res.header('Content-Type', 'image/png')\n res.send(buf)\n }\n })\n } else {\n const msg = error.message + '\\n' + error.stack\n res.header('Content-Type', 'text/plain')\n res.send(msg)\n console.error(msg)\n }\n })\n})\n\neffectHandlers.node = function (args, cb) {\n args.src = path.join(__dirname, 'images', 'node_logo.png')\n this.image(path.join(args, cb))\n}\n\neffectHandlers.npm = function (args, cb) {\n args.src = path.join(__dirname, 'images', 'npm_logo.png')\n this.image(args, cb)\n}\n\neffectHandlers.bacon = function (args, cb) {\n args.src = path.join(__dirname, 'images', 'bacon-love.png')\n this.image(args, cb)\n}\n\neffectHandlers.rounded = function (args, cb) {\n const canvas = createCanvas(200, 200)\n QRCode.toCanvas(canvas, args.text || '', function (err) {\n if (err) {\n cb(err, canvas)\n return\n }\n\n const tpx = new canvasutil.PixelCore()\n const luma709Only = canvasutil.conversionLib.luma709Only\n const up = []\n const down = []\n const left = []\n const right = []\n let upPx\n let downPx\n let leftPx\n let rightPx\n let r\n let t\n let l\n let d\n let corner = 0\n\n tpx.threshold = 100\n\n tpx.iterate(canvas, function (px, i, len, pixels, w, h, pixelCore) {\n corner = 0\n\n // is dark\n if (luma709Only(px.r, px.g, px.b) < pixelCore.threshold) {\n if (i - w > 0) {\n upPx = (i - w) * 4\n up[0] = pixels[upPx + 0]\n up[1] = pixels[upPx + 1]\n up[2] = pixels[upPx + 2]\n // console.log('up',up);\n }\n\n if (i + w <= len) {\n downPx = (i + w) * 4\n down[0] = pixels[downPx + 0]\n down[1] = pixels[downPx + 1]\n down[2] = pixels[downPx + 2]\n // console.log('down',down);\n }\n\n // have left pixel but no wrapping\n if (i % w !== 0) {\n leftPx = (i - 1) * 4\n left[0] = pixels[leftPx + 0]\n left[1] = pixels[leftPx + 1]\n left[2] = pixels[leftPx + 2]\n // console.log('left',left);\n }\n\n if (i % w !== w - 1) {\n rightPx = (i + 1) * 4\n right[0] = pixels[rightPx + 0]\n right[1] = pixels[rightPx + 1]\n right[2] = pixels[rightPx + 2]\n // console.log('right',right);\n }\n\n r = rightPx ? luma709Only(right[0], right[1], right[2]) : 0\n t = upPx ? luma709Only(up[0], up[1], up[2]) : 0\n l = leftPx ? luma709Only(left[0], left[1], left[2]) : 0\n d = downPx ? luma709Only(down[0], down[1], down[2]) : 0\n\n if (l > pixelCore.threshold) { // if left is light and i am dark\n if (t > pixelCore.threshold) { // if top is light and i am dark\n corner = 1\n pixels[rightPx + 4] = 100\n } else if (d > pixelCore.threshold) { // if bottom is light and i am dark\n pixels[rightPx + 4] = 100\n corner = 1\n }\n } else if (r > pixelCore.threshold) {\n if (t > pixelCore.threshold) { // if top is light and i am dark\n corner = 1\n } else if (d > pixelCore.threshold) { // if bottom is light and i am dark\n corner = 1\n }\n }\n\n if (corner) {\n px.a = 50\n }\n }\n })\n cb(null, canvas)\n })\n}\n\neffectHandlers.remoteImage = function (args, cb) {\n let src = args.src\n let domain\n let uri\n\n if (!src) {\n cb(new Error('src required'), null)\n } else {\n if (src.indexof('://') !== -1) {\n src = src.split('://').unshift()\n const parts = src.split('/')\n\n domain = parts.shift()\n uri = parts.join('/')\n }\n }\n\n if (!domain || !uri) {\n cb(new Error('missing domain or uri ' + args.src))\n return\n }\n\n const options = {\n host: domain,\n port: 80,\n path: uri,\n method: 'GET'\n }\n\n const req = http.request(options, function (res) {\n if (res.statusCode < 200 || res.statusCode > 299) {\n cb(new Error('http ' + res.statusCode + ' response code'), null)\n return\n }\n\n res.setEncoding('utf8')\n\n let data = ''\n res.on('data', function (chunk) {\n data += chunk\n console.log('BODY: ' + chunk)\n })\n\n res.on('complete', function () {\n cb(null, data)\n })\n\n res.on('error', function (error) {\n cb(error, null)\n cb = function () {}\n })\n })\n\n req.end()\n}\n\neffectHandlers.image = function (args, cb) {\n loadImage(args.src || '').then((img) => {\n const convert = canvasutil.conversionLib\n const canvas = createCanvas(200, 200)\n QRCode.toCanvas(canvas, args.text || '', function (err) {\n if (err) {\n cb(err, false)\n return\n }\n\n const codeCtx = canvas.getContext('2d')\n const frame = codeCtx.getImageData(0, 0, canvas.width, canvas.width)\n const tpx = new canvasutil.PixelCore()\n const baconCanvas = createCanvas(canvas.width, canvas.width)\n const ctx = baconCanvas.getContext('2d')\n const topThreshold = args.darkThreshold || 25\n const bottomThreshold = args.lightThreshold || 75\n\n tpx.threshold = 50\n\n // scale image\n let w = canvas.width\n let h = canvas.height\n\n if (img.width > img.height) {\n w = w * (canvas.height / h)\n h = canvas.height\n } else {\n h = h * (canvas.height / w)\n w = canvas.width\n }\n ctx.drawImage(img, 0, 0, w, h)\n\n try {\n tpx.iterate(baconCanvas, function (px, i, l, pixels, w, h, pixelCore) {\n const luma = (0.2125 * px.r + 0.7154 * px.g + 0.0721 * px.b)\n const codeLuma = convert.luma709Only(frame.data[i * 4], frame.data[i * 4 + 1], frame.data[i * 4 + 2])\n let yuv\n let rgb\n\n if (codeLuma > pixelCore.threshold) {\n if (luma < bottomThreshold) {\n yuv = convert.rgbToYuv(px.r, px.g, px.b)\n\n rgb = convert.yuvToRgb(bottomThreshold, yuv[1], yuv[2])\n\n px.r = rgb[0]\n px.g = rgb[1]\n px.b = rgb[2]\n px.a = 255\n }\n } else {\n if (luma > topThreshold) {\n yuv = convert.rgbToYuv(px.r, px.g, px.b)\n\n rgb = convert.yuvToRgb(topThreshold, yuv[1], yuv[2])\n\n px.r = rgb[0]\n px.g = rgb[1]\n px.b = rgb[2]\n }\n }\n })\n } catch (e) {\n cb(err, false)\n }\n\n cb(null, baconCanvas)\n })\n }, (error) => {\n cb(error, null)\n })\n}\n\neffectHandlers.plain = function (args, cb) {\n const canvas = createCanvas(200, 200)\n const text = args.text || ''\n QRCode.toCanvas(canvas, text || '', function (err) {\n cb(err, canvas)\n })\n}\n\napp.listen(3031)\nconsole.log('listening on 3031')\n"
},
{
"path": "examples/save.js",
"content": "const QRCode = require('../lib')\n\nconst path = './tmp.png'\nQRCode.toFile(path, 'life of the party bros', {\n color: {\n dark: '#00F', // Blue modules\n light: '#0000' // Transparent background\n }\n}, function (err) {\n if (err) throw err\n console.log('saved.')\n})\n"
},
{
"path": "examples/server.js",
"content": "const QRCode = require('../lib')\nconst http = require('http')\n\nfunction testQRCode (req, res) {\n res.writeHead(200, { 'Content-Type': 'text/html' })\n\n const jungleBook = \"The moonlight was blocked out of the mouth of the cave, for Shere Khan's\\n\" +\n 'great square head and shoulders were thrust into the entrance. Tabaqui,\\n' +\n 'behind him, was squeaking: \"My lord, my lord, it went in here!\"\\n' +\n '\\n' +\n '\"Shere Khan does us great honor,\" said Father Wolf, but his eyes were\\n' +\n 'very angry. \"What does Shere Khan need?\"\\n' +\n '\\n' +\n \"\\\"My quarry. A man's cub went this way,\\\" said Shere Khan. \\\"Its parents\\n\" +\n 'have run off. Give it to me.\"\\n' +\n '\\n' +\n \"Shere Khan had jumped at a woodcutter's campfire, as Father Wolf had\\n\" +\n 'said, and was furious from the pain of his burned feet. But Father Wolf\\n' +\n 'knew that the mouth of the cave was too narrow for a tiger to come in\\n' +\n \"by. Even where he was, Shere Khan's shoulders and forepaws were cramped\\n\" +\n \"for want of room, as a man's would be if he tried to fight in a barrel.\\n\" +\n '\\n' +\n '\"The Wolves are a free people,\" said Father Wolf. \"They take orders from\\n' +\n \"the Head of the Pack, and not from any striped cattle-killer. The man's\\n\" +\n 'cub is ours--to kill if we choose.\"'\n\n // QRCode.QRCodeDraw.color.dark = '#d4d4d4';\n QRCode.toDataURL(jungleBook, function (err, url) {\n if (err) console.log('error: ' + err)\n res.end(\"node-qrcode\")\n })\n}\n\nhttp.createServer(testQRCode).listen(3030)\nconsole.log('test server started on port 3030')\n"
},
{
"path": "examples/vendors/excanvas/README",
"content": "ExplorerCanvas\r\nCopyright 2006 Google Inc.\r\n\r\n-------------------------------------------------------------------------------\r\nDESCRIPTION\r\n\r\nFirefox, Safari and Opera 9 support the canvas tag to allow 2D command-based \r\ndrawing operations. ExplorerCanvas brings the same functionality to Internet \r\nExplorer; web developers only need to include a single script tag in their \r\nexisting canvas webpages to enable this support.\r\n\r\n\r\n-------------------------------------------------------------------------------\r\nINSTALLATION\r\n\r\nInclude the ExplorerCanvas tag in the same directory as your HTML files, and \r\nadd the following code to your page, preferably in the tag.\r\n\r\n\r\n\r\nIf you run into trouble, please look at the included example code to see how\r\nto best implement this"
},
{
"path": "examples/vendors/excanvas/excanvas.compiled.js",
"content": "// Copyright 2006 Google Inc.\n//\n// Licensed under the Apache License, Version 2.0 (the \"License\");\n// you may not use this file except in compliance with the License.\n// You may obtain a copy of the License at\n//\n// http://www.apache.org/licenses/LICENSE-2.0\n//\n// Unless required by applicable law or agreed to in writing, software\n// distributed under the License is distributed on an \"AS IS\" BASIS,\n// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n// See the License for the specific language governing permissions and\n// limitations under the License.\ndocument.createElement(\"canvas\").getContext||(function(){var s=Math,j=s.round,F=s.sin,G=s.cos,V=s.abs,W=s.sqrt,k=10,v=k/2;function X(){return this.context_||(this.context_=new H(this))}var L=Array.prototype.slice;function Y(b,a){var c=L.call(arguments,2);return function(){return b.apply(a,c.concat(L.call(arguments)))}}var M={init:function(b){if(/MSIE/.test(navigator.userAgent)&&!window.opera){var a=b||document;a.createElement(\"canvas\");a.attachEvent(\"onreadystatechange\",Y(this.init_,this,a))}},init_:function(b){b.namespaces.g_vml_||\nb.namespaces.add(\"g_vml_\",\"urn:schemas-microsoft-com:vml\",\"#default#VML\");b.namespaces.g_o_||b.namespaces.add(\"g_o_\",\"urn:schemas-microsoft-com:office:office\",\"#default#VML\");if(!b.styleSheets.ex_canvas_){var a=b.createStyleSheet();a.owningElement.id=\"ex_canvas_\";a.cssText=\"canvas{display:inline-block;overflow:hidden;text-align:left;width:300px;height:150px}g_vml_\\\\:*{behavior:url(#default#VML)}g_o_\\\\:*{behavior:url(#default#VML)}\"}var c=b.getElementsByTagName(\"canvas\"),d=0;for(;d','\",\"\");this.element_.insertAdjacentHTML(\"BeforeEnd\",t.join(\"\"))};i.stroke=function(b){var a=[],c=P(b?this.fillStyle:this.strokeStyle),d=c.color,f=c.alpha*this.globalAlpha;a.push(\"g.x)g.x=e.x;if(h.y==null||e.yg.y)g.y=e.y}}a.push(' \">');if(b)if(typeof this.fillStyle==\"object\"){var m=this.fillStyle,r=0,n={x:0,y:0},o=0,q=1;if(m.type_==\"gradient\"){var t=m.x1_/this.arcScaleX_,E=m.y1_/this.arcScaleY_,p=this.getCoords_(m.x0_/this.arcScaleX_,m.y0_/this.arcScaleY_),\nz=this.getCoords_(t,E);r=Math.atan2(z.x-p.x,z.y-p.y)*180/Math.PI;if(r<0)r+=360;if(r<1.0E-6)r=0}else{var p=this.getCoords_(m.x0_,m.y0_),w=g.x-h.x,x=g.y-h.y;n={x:(p.x-h.x)/w,y:(p.y-h.y)/x};w/=this.arcScaleX_*k;x/=this.arcScaleY_*k;var R=s.max(w,x);o=2*m.r0_/R;q=2*m.r1_/R-o}var u=m.colors_;u.sort(function(ba,ca){return ba.offset-ca.offset});var J=u.length,da=u[0].color,ea=u[J-1].color,fa=u[0].alpha*this.globalAlpha,ga=u[J-1].alpha*this.globalAlpha,S=[],l=0;for(;l')}else a.push('');else{var K=this.lineScale_*this.lineWidth;if(K<1)f*=K;a.push(\"')}a.push(\"\");this.element_.insertAdjacentHTML(\"beforeEnd\",a.join(\"\"))};i.fill=function(){this.stroke(true)};i.closePath=function(){this.currentPath_.push({type:\"close\"})};i.getCoords_=function(b,a){var c=this.m_;return{x:k*(b*c[0][0]+a*c[1][0]+c[2][0])-v,y:k*(b*c[0][1]+a*c[1][1]+c[2][1])-v}};i.save=function(){var b={};O(this,b);this.aStack_.push(b);this.mStack_.push(this.m_);this.m_=y(I(),this.m_)};i.restore=function(){O(this.aStack_.pop(),\nthis);this.m_=this.mStack_.pop()};function ha(b){var a=0;for(;a<3;a++){var c=0;for(;c<2;c++)if(!isFinite(b[a][c])||isNaN(b[a][c]))return false}return true}function A(b,a,c){if(!!ha(a)){b.m_=a;if(c)b.lineScale_=W(V(a[0][0]*a[1][1]-a[0][1]*a[1][0]))}}i.translate=function(b,a){A(this,y([[1,0,0],[0,1,0],[b,a,1]],this.m_),false)};i.rotate=function(b){var a=G(b),c=F(b);A(this,y([[a,c,0],[-c,a,0],[0,0,1]],this.m_),false)};i.scale=function(b,a){this.arcScaleX_*=b;this.arcScaleY_*=a;A(this,y([[b,0,0],[0,a,\n0],[0,0,1]],this.m_),true)};i.transform=function(b,a,c,d,f,h){A(this,y([[b,a,0],[c,d,0],[f,h,1]],this.m_),true)};i.setTransform=function(b,a,c,d,f,h){A(this,[[b,a,0],[c,d,0],[f,h,1]],true)};i.clip=function(){};i.arcTo=function(){};i.createPattern=function(){return new U};function D(b){this.type_=b;this.r1_=this.y1_=this.x1_=this.r0_=this.y0_=this.x0_=0;this.colors_=[]}D.prototype.addColorStop=function(b,a){a=P(a);this.colors_.push({offset:b,color:a.color,alpha:a.alpha})};function U(){}G_vmlCanvasManager=\nM;CanvasRenderingContext2D=H;CanvasGradient=D;CanvasPattern=U})();\n"
},
{
"path": "examples/vendors/excanvas/excanvas.js",
"content": "// Copyright 2006 Google Inc.\n//\n// Licensed under the Apache License, Version 2.0 (the \"License\");\n// you may not use this file except in compliance with the License.\n// You may obtain a copy of the License at\n//\n// http://www.apache.org/licenses/LICENSE-2.0\n//\n// Unless required by applicable law or agreed to in writing, software\n// distributed under the License is distributed on an \"AS IS\" BASIS,\n// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n// See the License for the specific language governing permissions and\n// limitations under the License.\n\n\n// Known Issues:\n//\n// * Patterns are not implemented.\n// * Radial gradient are not implemented. The VML version of these look very\n// different from the canvas one.\n// * Clipping paths are not implemented.\n// * Coordsize. The width and height attribute have higher priority than the\n// width and height style values which isn't correct.\n// * Painting mode isn't implemented.\n// * Canvas width/height should is using content-box by default. IE in\n// Quirks mode will draw the canvas using border-box. Either change your\n// doctype to HTML5\n// (http://www.whatwg.org/specs/web-apps/current-work/#the-doctype)\n// or use Box Sizing Behavior from WebFX\n// (http://webfx.eae.net/dhtml/boxsizing/boxsizing.html)\n// * Non uniform scaling does not correctly scale strokes.\n// * Optimize. There is always room for speed improvements.\n\n// Only add this code if we do not already have a canvas implementation\nif (!document.createElement('canvas').getContext) {\n\n(function() {\n\n // alias some functions to make (compiled) code shorter\n var m = Math;\n var mr = m.round;\n var ms = m.sin;\n var mc = m.cos;\n var abs = m.abs;\n var sqrt = m.sqrt;\n\n // this is used for sub pixel precision\n var Z = 10;\n var Z2 = Z / 2;\n\n /**\n * This funtion is assigned to the