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node_modules/iconv-lite/README.md
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node_modules/iconv-lite/README.md
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## Pure JS character encoding conversion [](https://travis-ci.org/ashtuchkin/iconv-lite)
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## iconv-lite: Pure JS character encoding conversion
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* Doesn't need native code compilation. Works on Windows and in sandboxed environments like [Cloud9](http://c9.io).
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* No need for native code compilation. Quick to install, works on Windows and in sandboxed environments like [Cloud9](http://c9.io).
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* Used in popular projects like [Express.js (body_parser)](https://github.com/expressjs/body-parser),
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[Grunt](http://gruntjs.com/), [Nodemailer](http://www.nodemailer.com/), [Yeoman](http://yeoman.io/) and others.
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* Faster than [node-iconv](https://github.com/bnoordhuis/node-iconv) (see below for performance comparison).
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* Intuitive encode/decode API
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* Streaming support for Node v0.10+
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* [Deprecated] Can extend Node.js primitives (buffers, streams) to support all iconv-lite encodings.
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* In-browser usage via [Browserify](https://github.com/substack/node-browserify) (~180k gzip compressed with Buffer shim included).
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* Intuitive encode/decode API, including Streaming support.
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* In-browser usage via [browserify](https://github.com/substack/node-browserify) or [webpack](https://webpack.js.org/) (~180kb gzip compressed with Buffer shim included).
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* Typescript [type definition file](https://github.com/ashtuchkin/iconv-lite/blob/master/lib/index.d.ts) included.
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* React Native is supported (need to explicitly `npm install` two more modules: `buffer` and `stream`).
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* React Native is supported (need to install `stream` module to enable Streaming API).
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* License: MIT.
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[](https://npmjs.org/packages/iconv-lite/)
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[](https://npmjs.org/package/iconv-lite/)
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[](https://travis-ci.org/ashtuchkin/iconv-lite)
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[](https://npmjs.org/package/iconv-lite/)
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[](https://npmjs.org/package/iconv-lite/)
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[](https://npmjs.org/package/iconv-lite/)
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## Usage
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### Basic API
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```javascript
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var iconv = require('iconv-lite');
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// Convert from an encoded buffer to js string.
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// Convert from an encoded buffer to a js string.
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str = iconv.decode(Buffer.from([0x68, 0x65, 0x6c, 0x6c, 0x6f]), 'win1251');
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// Convert from js string to an encoded buffer.
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// Convert from a js string to an encoded buffer.
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buf = iconv.encode("Sample input string", 'win1251');
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// Check if encoding is supported
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iconv.encodingExists("us-ascii")
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```
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### Streaming API (Node v0.10+)
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### Streaming API
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```javascript
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// Decode stream (from binary stream to js strings)
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// Decode stream (from binary data stream to js strings)
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http.createServer(function(req, res) {
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var converterStream = iconv.decodeStream('win1251');
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req.pipe(converterStream);
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@@ -57,44 +59,10 @@ http.createServer(function(req, res) {
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});
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```
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### [Deprecated] Extend Node.js own encodings
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> NOTE: This doesn't work on latest Node versions. See [details](https://github.com/ashtuchkin/iconv-lite/wiki/Node-v4-compatibility).
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```javascript
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// After this call all Node basic primitives will understand iconv-lite encodings.
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iconv.extendNodeEncodings();
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// Examples:
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buf = new Buffer(str, 'win1251');
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buf.write(str, 'gbk');
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str = buf.toString('latin1');
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assert(Buffer.isEncoding('iso-8859-15'));
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Buffer.byteLength(str, 'us-ascii');
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http.createServer(function(req, res) {
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req.setEncoding('big5');
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req.collect(function(err, body) {
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console.log(body);
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});
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});
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fs.createReadStream("file.txt", "shift_jis");
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// External modules are also supported (if they use Node primitives, which they probably do).
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request = require('request');
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request({
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url: "http://github.com/",
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encoding: "cp932"
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});
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// To remove extensions
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iconv.undoExtendNodeEncodings();
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```
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## Supported encodings
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* All node.js native encodings: utf8, ucs2 / utf16-le, ascii, binary, base64, hex.
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* Additional unicode encodings: utf16, utf16-be, utf-7, utf-7-imap.
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* Additional unicode encodings: utf16, utf16-be, utf-7, utf-7-imap, utf32, utf32-le, and utf32-be.
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* All widespread singlebyte encodings: Windows 125x family, ISO-8859 family,
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IBM/DOS codepages, Macintosh family, KOI8 family, all others supported by iconv library.
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Aliases like 'latin1', 'us-ascii' also supported.
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@@ -133,6 +101,12 @@ smart about endianness in the following ways:
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overridden with `defaultEncoding: 'utf-16be'` option. Strips BOM unless `stripBOM: false`.
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* Encoding: uses UTF-16LE and writes BOM by default. Use `addBOM: false` to override.
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## UTF-32 Encodings
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This library supports UTF-32LE, UTF-32BE and UTF-32 encodings. Like the UTF-16 encoding above, UTF-32 defaults to UTF-32LE, but uses BOM and 'spaces heuristics' to determine input endianness.
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* The default of UTF-32LE can be overridden with the `defaultEncoding: 'utf-32be'` option. Strips BOM unless `stripBOM: false`.
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* Encoding: uses UTF-32LE and writes BOM by default. Use `addBOM: false` to override. (`defaultEncoding: 'utf-32be'` can also be used here to change encoding.)
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## Other notes
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When decoding, be sure to supply a Buffer to decode() method, otherwise [bad things usually happen](https://github.com/ashtuchkin/iconv-lite/wiki/Use-Buffers-when-decoding).
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