(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.nifti = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){

// Top level file is just a mixin of submodules & constants

'use strict';

var assign    = require('./lib/utils/common').assign;

var deflate   = require('./lib/deflate');

var inflate   = require('./lib/inflate');

var constants = require('./lib/zlib/constants');

var pako = {};

assign(pako, deflate, inflate, constants);

module.exports = pako;

},{"./lib/deflate":2,"./lib/inflate":3,"./lib/utils/common":4,"./lib/zlib/constants":7}],2:[function(require,module,exports){

'use strict';

var zlib_deflate = require('./zlib/deflate.js');

var utils = require('./utils/common');

var strings = require('./utils/strings');

var msg = require('./zlib/messages');

var zstream = require('./zlib/zstream');

var toString = Object.prototype.toString;

/* Public constants ==========================================================*/

/* ===========================================================================*/

var Z_NO_FLUSH      = 0;

var Z_FINISH        = 4;

var Z_OK            = 0;

var Z_STREAM_END    = 1;

var Z_SYNC_FLUSH    = 2;

var Z_DEFAULT_COMPRESSION = -1;

var Z_DEFAULT_STRATEGY    = 0;

var Z_DEFLATED  = 8;

/* ===========================================================================*/

/**

 * class Deflate

 *

 * Generic JS-style wrapper for zlib calls. If you don't need

 * streaming behaviour - use more simple functions: [[deflate]],

 * [[deflateRaw]] and [[gzip]].

 **/

/* internal

 * Deflate.chunks -> Array

 *

 * Chunks of output data, if [[Deflate#onData]] not overriden.

 **/

/**

 * Deflate.result -> Uint8Array|Array

 *

 * Compressed result, generated by default [[Deflate#onData]]

 * and [[Deflate#onEnd]] handlers. Filled after you push last chunk

 * (call [[Deflate#push]] with `Z_FINISH` / `true` param)  or if you

 * push a chunk with explicit flush (call [[Deflate#push]] with

 * `Z_SYNC_FLUSH` param).

 **/

/**

 * Deflate.err -> Number

 *

 * Error code after deflate finished. 0 (Z_OK) on success.

 * You will not need it in real life, because deflate errors

 * are possible only on wrong options or bad `onData` / `onEnd`

 * custom handlers.

 **/

/**

 * Deflate.msg -> String

 *

 * Error message, if [[Deflate.err]] != 0

 **/

/**

 * new Deflate(options)

 * - options (Object): zlib deflate options.

 *

 * Creates new deflator instance with specified params. Throws exception

 * on bad params. Supported options:

 *

 * - `level`

 * - `windowBits`

 * - `memLevel`

 * - `strategy`

 *

 * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)

 * for more information on these.

 *

 * Additional options, for internal needs:

 *

 * - `chunkSize` - size of generated data chunks (16K by default)

 * - `raw` (Boolean) - do raw deflate

 * - `gzip` (Boolean) - create gzip wrapper

 * - `to` (String) - if equal to 'string', then result will be "binary string"

 *    (each char code [0..255])

 * - `header` (Object) - custom header for gzip

 *   - `text` (Boolean) - true if compressed data believed to be text

 *   - `time` (Number) - modification time, unix timestamp

 *   - `os` (Number) - operation system code

 *   - `extra` (Array) - array of bytes with extra data (max 65536)

 *   - `name` (String) - file name (binary string)

 *   - `comment` (String) - comment (binary string)

 *   - `hcrc` (Boolean) - true if header crc should be added

 *

 * ##### Example:

 *

 * ```javascript

 * var pako = require('pako')

 *   , chunk1 = Uint8Array([1,2,3,4,5,6,7,8,9])

 *   , chunk2 = Uint8Array([10,11,12,13,14,15,16,17,18,19]);

 *

 * var deflate = new pako.Deflate({ level: 3});

 *

 * deflate.push(chunk1, false);

 * deflate.push(chunk2, true);  // true -> last chunk

 *

 * if (deflate.err) { throw new Error(deflate.err); }

 *

 * console.log(deflate.result);

 * ```

 **/

var Deflate = function(options) {

  this.options = utils.assign({

    level: Z_DEFAULT_COMPRESSION,

    method: Z_DEFLATED,

    chunkSize: 16384,

    windowBits: 15,

    memLevel: 8,

    strategy: Z_DEFAULT_STRATEGY,

    to: ''

  }, options || {});

  var opt = this.options;

  if (opt.raw && (opt.windowBits > 0)) {

    opt.windowBits = -opt.windowBits;

  }

  else if (opt.gzip && (opt.windowBits > 0) && (opt.windowBits < 16)) {

    opt.windowBits += 16;

  }

  this.err    = 0;      // error code, if happens (0 = Z_OK)

  this.msg    = '';     // error message

  this.ended  = false;  // used to avoid multiple onEnd() calls

  this.chunks = [];     // chunks of compressed data

  this.strm = new zstream();

  this.strm.avail_out = 0;

  var status = zlib_deflate.deflateInit2(

    this.strm,

    opt.level,

    opt.method,

    opt.windowBits,

    opt.memLevel,

    opt.strategy

  );

  if (status !== Z_OK) {

    throw new Error(msg[status]);

  }

  if (opt.header) {

    zlib_deflate.deflateSetHeader(this.strm, opt.header);

  }

};

/**

 * Deflate#push(data[, mode]) -> Boolean

 * - data (Uint8Array|Array|ArrayBuffer|String): input data. Strings will be

 *   converted to utf8 byte sequence.

 * - mode (Number|Boolean): 0..6 for corresponding Z_NO_FLUSH..Z_TREE modes.

 *   See constants. Skipped or `false` means Z_NO_FLUSH, `true` meansh Z_FINISH.

 *

 * Sends input data to deflate pipe, generating [[Deflate#onData]] calls with

 * new compressed chunks. Returns `true` on success. The last data block must have

 * mode Z_FINISH (or `true`). That will flush internal pending buffers and call

 * [[Deflate#onEnd]]. For interim explicit flushes (without ending the stream) you

 * can use mode Z_SYNC_FLUSH, keeping the compression context.

 *

 * On fail call [[Deflate#onEnd]] with error code and return false.

 *

 * We strongly recommend to use `Uint8Array` on input for best speed (output

 * array format is detected automatically). Also, don't skip last param and always

 * use the same type in your code (boolean or number). That will improve JS speed.

 *

 * For regular `Array`-s make sure all elements are [0..255].

 *

 * ##### Example

 *

 * ```javascript

 * push(chunk, false); // push one of data chunks

 * ...

 * push(chunk, true);  // push last chunk

 * ```

 **/

Deflate.prototype.push = function(data, mode) {

  var strm = this.strm;

  var chunkSize = this.options.chunkSize;

  var status, _mode;

  if (this.ended) { return false; }

  _mode = (mode === ~~mode) ? mode : ((mode === true) ? Z_FINISH : Z_NO_FLUSH);

  // Convert data if needed

  if (typeof data === 'string') {

    // If we need to compress text, change encoding to utf8.

    strm.input = strings.string2buf(data);

  } else if (toString.call(data) === '[object ArrayBuffer]') {

    strm.input = new Uint8Array(data);

  } else {

    strm.input = data;

  }

  strm.next_in = 0;

  strm.avail_in = strm.input.length;

  do {

    if (strm.avail_out === 0) {

      strm.output = new utils.Buf8(chunkSize);

      strm.next_out = 0;

      strm.avail_out = chunkSize;

    }

    status = zlib_deflate.deflate(strm, _mode);    /* no bad return value */

    if (status !== Z_STREAM_END && status !== Z_OK) {

      this.onEnd(status);

      this.ended = true;

      return false;

    }

    if (strm.avail_out === 0 || (strm.avail_in === 0 && (_mode === Z_FINISH || _mode === Z_SYNC_FLUSH))) {

      if (this.options.to === 'string') {

        this.onData(strings.buf2binstring(utils.shrinkBuf(strm.output, strm.next_out)));

      } else {

        this.onData(utils.shrinkBuf(strm.output, strm.next_out));

      }

    }

  } while ((strm.avail_in > 0 || strm.avail_out === 0) && status !== Z_STREAM_END);

  // Finalize on the last chunk.

  if (_mode === Z_FINISH) {

    status = zlib_deflate.deflateEnd(this.strm);

    this.onEnd(status);

    this.ended = true;

    return status === Z_OK;

  }

  // callback interim results if Z_SYNC_FLUSH.

  if (_mode === Z_SYNC_FLUSH) {

    this.onEnd(Z_OK);

    strm.avail_out = 0;

    return true;

  }

  return true;

};

/**

 * Deflate#onData(chunk) -> Void

 * - chunk (Uint8Array|Array|String): ouput data. Type of array depends

 *   on js engine support. When string output requested, each chunk

 *   will be string.

 *

 * By default, stores data blocks in `chunks[]` property and glue

 * those in `onEnd`. Override this handler, if you need another behaviour.

 **/

Deflate.prototype.onData = function(chunk) {

  this.chunks.push(chunk);

};

/**

 * Deflate#onEnd(status) -> Void

 * - status (Number): deflate status. 0 (Z_OK) on success,

 *   other if not.

 *

 * Called once after you tell deflate that the input stream is

 * complete (Z_FINISH) or should be flushed (Z_SYNC_FLUSH)

 * or if an error happened. By default - join collected chunks,

 * free memory and fill `results` / `err` properties.

 **/

Deflate.prototype.onEnd = function(status) {

  // On success - join

  if (status === Z_OK) {

    if (this.options.to === 'string') {

      this.result = this.chunks.join('');

    } else {

      this.result = utils.flattenChunks(this.chunks);

    }

  }

  this.chunks = [];

  this.err = status;

  this.msg = this.strm.msg;

};

/**

 * deflate(data[, options]) -> Uint8Array|Array|String

 * - data (Uint8Array|Array|String): input data to compress.

 * - options (Object): zlib deflate options.

 *

 * Compress `data` with deflate alrorythm and `options`.

 *

 * Supported options are:

 *

 * - level

 * - windowBits

 * - memLevel

 * - strategy

 *

 * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)

 * for more information on these.

 *

 * Sugar (options):

 *

 * - `raw` (Boolean) - say that we work with raw stream, if you don't wish to specify

 *   negative windowBits implicitly.

 * - `to` (String) - if equal to 'string', then result will be "binary string"

 *    (each char code [0..255])

 *

 * ##### Example:

 *

 * ```javascript

 * var pako = require('pako')

 *   , data = Uint8Array([1,2,3,4,5,6,7,8,9]);

 *

 * console.log(pako.deflate(data));

 * ```

 **/

function deflate(input, options) {

  var deflator = new Deflate(options);

  deflator.push(input, true);

  // That will never happens, if you don't cheat with options :)

  if (deflator.err) { throw deflator.msg; }

  return deflator.result;

}

/**

 * deflateRaw(data[, options]) -> Uint8Array|Array|String

 * - data (Uint8Array|Array|String): input data to compress.

 * - options (Object): zlib deflate options.

 *

 * The same as [[deflate]], but creates raw data, without wrapper

 * (header and adler32 crc).

 **/

function deflateRaw(input, options) {

  options = options || {};

  options.raw = true;

  return deflate(input, options);

}

/**

 * gzip(data[, options]) -> Uint8Array|Array|String

 * - data (Uint8Array|Array|String): input data to compress.

 * - options (Object): zlib deflate options.

 *

 * The same as [[deflate]], but create gzip wrapper instead of

 * deflate one.

 **/

function gzip(input, options) {

  options = options || {};

  options.gzip = true;

  return deflate(input, options);

}

exports.Deflate = Deflate;

exports.deflate = deflate;

exports.deflateRaw = deflateRaw;

exports.gzip = gzip;

},{"./utils/common":4,"./utils/strings":5,"./zlib/deflate.js":9,"./zlib/messages":14,"./zlib/zstream":16}],3:[function(require,module,exports){

'use strict';

var zlib_inflate = require('./zlib/inflate.js');

var utils = require('./utils/common');

var strings = require('./utils/strings');

var c = require('./zlib/constants');

var msg = require('./zlib/messages');

var zstream = require('./zlib/zstream');

var gzheader = require('./zlib/gzheader');

var toString = Object.prototype.toString;

/**

 * class Inflate

 *

 * Generic JS-style wrapper for zlib calls. If you don't need

 * streaming behaviour - use more simple functions: [[inflate]]

 * and [[inflateRaw]].

 **/

/* internal

 * inflate.chunks -> Array

 *

 * Chunks of output data, if [[Inflate#onData]] not overriden.

 **/

/**

 * Inflate.result -> Uint8Array|Array|String

 *

 * Uncompressed result, generated by default [[Inflate#onData]]

 * and [[Inflate#onEnd]] handlers. Filled after you push last chunk

 * (call [[Inflate#push]] with `Z_FINISH` / `true` param) or if you

 * push a chunk with explicit flush (call [[Inflate#push]] with

 * `Z_SYNC_FLUSH` param).

 **/

/**

 * Inflate.err -> Number

 *

 * Error code after inflate finished. 0 (Z_OK) on success.

 * Should be checked if broken data possible.

 **/

/**

 * Inflate.msg -> String

 *

 * Error message, if [[Inflate.err]] != 0

 **/

/**

 * new Inflate(options)

 * - options (Object): zlib inflate options.

 *

 * Creates new inflator instance with specified params. Throws exception

 * on bad params. Supported options:

 *

 * - `windowBits`

 *

 * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)

 * for more information on these.

 *

 * Additional options, for internal needs:

 *

 * - `chunkSize` - size of generated data chunks (16K by default)

 * - `raw` (Boolean) - do raw inflate

 * - `to` (String) - if equal to 'string', then result will be converted

 *   from utf8 to utf16 (javascript) string. When string output requested,

 *   chunk length can differ from `chunkSize`, depending on content.

 *

 * By default, when no options set, autodetect deflate/gzip data format via

 * wrapper header.

 *

 * ##### Example:

 *

 * ```javascript

 * var pako = require('pako')

 *   , chunk1 = Uint8Array([1,2,3,4,5,6,7,8,9])

 *   , chunk2 = Uint8Array([10,11,12,13,14,15,16,17,18,19]);

 *

 * var inflate = new pako.Inflate({ level: 3});

 *

 * inflate.push(chunk1, false);

 * inflate.push(chunk2, true);  // true -> last chunk

 *

 * if (inflate.err) { throw new Error(inflate.err); }

 *

 * console.log(inflate.result);

 * ```

 **/

var Inflate = function(options) {

  this.options = utils.assign({

    chunkSize: 16384,

    windowBits: 0,

    to: ''

  }, options || {});

  var opt = this.options;

  // Force window size for `raw` data, if not set directly,

  // because we have no header for autodetect.

  if (opt.raw && (opt.windowBits >= 0) && (opt.windowBits < 16)) {

    opt.windowBits = -opt.windowBits;

    if (opt.windowBits === 0) { opt.windowBits = -15; }

  }

  // If `windowBits` not defined (and mode not raw) - set autodetect flag for gzip/deflate

  if ((opt.windowBits >= 0) && (opt.windowBits < 16) &&

      !(options && options.windowBits)) {

    opt.windowBits += 32;

  }

  // Gzip header has no info about windows size, we can do autodetect only

  // for deflate. So, if window size not set, force it to max when gzip possible

  if ((opt.windowBits > 15) && (opt.windowBits < 48)) {

    // bit 3 (16) -> gzipped data

    // bit 4 (32) -> autodetect gzip/deflate

    if ((opt.windowBits & 15) === 0) {

      opt.windowBits |= 15;

    }

  }

  this.err    = 0;      // error code, if happens (0 = Z_OK)

  this.msg    = '';     // error message

  this.ended  = false;  // used to avoid multiple onEnd() calls

  this.chunks = [];     // chunks of compressed data

  this.strm   = new zstream();

  this.strm.avail_out = 0;

  var status  = zlib_inflate.inflateInit2(

    this.strm,

    opt.windowBits

  );

  if (status !== c.Z_OK) {

    throw new Error(msg[status]);

  }

  this.header = new gzheader();

  zlib_inflate.inflateGetHeader(this.strm, this.header);

};

/**

 * Inflate#push(data[, mode]) -> Boolean

 * - data (Uint8Array|Array|ArrayBuffer|String): input data

 * - mode (Number|Boolean): 0..6 for corresponding Z_NO_FLUSH..Z_TREE modes.

 *   See constants. Skipped or `false` means Z_NO_FLUSH, `true` meansh Z_FINISH.

 *

 * Sends input data to inflate pipe, generating [[Inflate#onData]] calls with

 * new output chunks. Returns `true` on success. The last data block must have

 * mode Z_FINISH (or `true`). That will flush internal pending buffers and call

 * [[Inflate#onEnd]]. For interim explicit flushes (without ending the stream) you

 * can use mode Z_SYNC_FLUSH, keeping the decompression context.

 *

 * On fail call [[Inflate#onEnd]] with error code and return false.

 *

 * We strongly recommend to use `Uint8Array` on input for best speed (output

 * format is detected automatically). Also, don't skip last param and always

 * use the same type in your code (boolean or number). That will improve JS speed.

 *

 * For regular `Array`-s make sure all elements are [0..255].

 *

 * ##### Example

 *

 * ```javascript

 * push(chunk, false); // push one of data chunks

 * ...

 * push(chunk, true);  // push last chunk

 * ```

 **/

Inflate.prototype.push = function(data, mode) {

  var strm = this.strm;

  var chunkSize = this.options.chunkSize;

  var status, _mode;

  var next_out_utf8, tail, utf8str;

  // Flag to properly process Z_BUF_ERROR on testing inflate call

  // when we check that all output data was flushed.

  var allowBufError = false;

  if (this.ended) { return false; }

  _mode = (mode === ~~mode) ? mode : ((mode === true) ? c.Z_FINISH : c.Z_NO_FLUSH);

  // Convert data if needed

  if (typeof data === 'string') {

    // Only binary strings can be decompressed on practice

    strm.input = strings.binstring2buf(data);

  } else if (toString.call(data) === '[object ArrayBuffer]') {

    strm.input = new Uint8Array(data);

  } else {

    strm.input = data;

  }

  strm.next_in = 0;

  strm.avail_in = strm.input.length;

  do {

    if (strm.avail_out === 0) {

      strm.output = new utils.Buf8(chunkSize);

      strm.next_out = 0;

      strm.avail_out = chunkSize;

    }

    status = zlib_inflate.inflate(strm, c.Z_NO_FLUSH);    /* no bad return value */

    if (status === c.Z_BUF_ERROR && allowBufError === true) {

      status = c.Z_OK;

      allowBufError = false;

    }

    if (status !== c.Z_STREAM_END && status !== c.Z_OK) {

      this.onEnd(status);

      this.ended = true;

      return false;

    }

    if (strm.next_out) {

      if (strm.avail_out === 0 || status === c.Z_STREAM_END || (strm.avail_in === 0 && (_mode === c.Z_FINISH || _mode === c.Z_SYNC_FLUSH))) {

        if (this.options.to === 'string') {

          next_out_utf8 = strings.utf8border(strm.output, strm.next_out);

          tail = strm.next_out - next_out_utf8;

          utf8str = strings.buf2string(strm.output, next_out_utf8);

          // move tail

          strm.next_out = tail;

          strm.avail_out = chunkSize - tail;

          if (tail) { utils.arraySet(strm.output, strm.output, next_out_utf8, tail, 0); }

          this.onData(utf8str);

        } else {

          this.onData(utils.shrinkBuf(strm.output, strm.next_out));

        }

      }

    }

    // When no more input data, we should check that internal inflate buffers

    // are flushed. The only way to do it when avail_out = 0 - run one more

    // inflate pass. But if output data not exists, inflate return Z_BUF_ERROR.

    // Here we set flag to process this error properly.

    //

    // NOTE. Deflate does not return error in this case and does not needs such

    // logic.

    if (strm.avail_in === 0 && strm.avail_out === 0) {

      allowBufError = true;

    }

  } while ((strm.avail_in > 0 || strm.avail_out === 0) && status !== c.Z_STREAM_END);

  if (status === c.Z_STREAM_END) {

    _mode = c.Z_FINISH;

  }

  // Finalize on the last chunk.

  if (_mode === c.Z_FINISH) {

    status = zlib_inflate.inflateEnd(this.strm);

    this.onEnd(status);

    this.ended = true;

    return status === c.Z_OK;

  }

  // callback interim results if Z_SYNC_FLUSH.

  if (_mode === c.Z_SYNC_FLUSH) {

    this.onEnd(c.Z_OK);

    strm.avail_out = 0;

    return true;

  }

  return true;

};

/**

 * Inflate#onData(chunk) -> Void

 * - chunk (Uint8Array|Array|String): ouput data. Type of array depends

 *   on js engine support. When string output requested, each chunk

 *   will be string.

 *

 * By default, stores data blocks in `chunks[]` property and glue

 * those in `onEnd`. Override this handler, if you need another behaviour.

 **/

Inflate.prototype.onData = function(chunk) {

  this.chunks.push(chunk);

};

/**

 * Inflate#onEnd(status) -> Void

 * - status (Number): inflate status. 0 (Z_OK) on success,

 *   other if not.

 *

 * Called either after you tell inflate that the input stream is

 * complete (Z_FINISH) or should be flushed (Z_SYNC_FLUSH)

 * or if an error happened. By default - join collected chunks,

 * free memory and fill `results` / `err` properties.

 **/

Inflate.prototype.onEnd = function(status) {

  // On success - join

  if (status === c.Z_OK) {

    if (this.options.to === 'string') {

      // Glue & convert here, until we teach pako to send

      // utf8 alligned strings to onData

      this.result = this.chunks.join('');

    } else {

      this.result = utils.flattenChunks(this.chunks);

    }

  }

  this.chunks = [];

  this.err = status;

  this.msg = this.strm.msg;

};

/**

 * inflate(data[, options]) -> Uint8Array|Array|String

 * - data (Uint8Array|Array|String): input data to decompress.

 * - options (Object): zlib inflate options.

 *

 * Decompress `data` with inflate/ungzip and `options`. Autodetect

 * format via wrapper header by default. That's why we don't provide

 * separate `ungzip` method.

 *

 * Supported options are:

 *

 * - windowBits

 *

 * [http://zlib.net/manual.html#Advanced](http://zlib.net/manual.html#Advanced)

 * for more information.

 *

 * Sugar (options):

 *

 * - `raw` (Boolean) - say that we work with raw stream, if you don't wish to specify

 *   negative windowBits implicitly.

 * - `to` (String) - if equal to 'string', then result will be converted

 *   from utf8 to utf16 (javascript) string. When string output requested,

 *   chunk length can differ from `chunkSize`, depending on content.

 *

 *

 * ##### Example:

 *

 * ```javascript

 * var pako = require('pako')

 *   , input = pako.deflate([1,2,3,4,5,6,7,8,9])

 *   , output;

 *

 * try {

 *   output = pako.inflate(input);

 * } catch (err)

 *   console.log(err);

 * }

 * ```

 **/

function inflate(input, options) {

  var inflator = new Inflate(options);

  inflator.push(input, true);

  // That will never happens, if you don't cheat with options :)

  if (inflator.err) { throw inflator.msg; }

  return inflator.result;

}

/**

 * inflateRaw(data[, options]) -> Uint8Array|Array|String

 * - data (Uint8Array|Array|String): input data to decompress.

 * - options (Object): zlib inflate options.

 *

 * The same as [[inflate]], but creates raw data, without wrapper

 * (header and adler32 crc).

 **/

function inflateRaw(input, options) {

  options = options || {};

  options.raw = true;

  return inflate(input, options);

}

/**

 * ungzip(data[, options]) -> Uint8Array|Array|String

 * - data (Uint8Array|Array|String): input data to decompress.

 * - options (Object): zlib inflate options.

 *

 * Just shortcut to [[inflate]], because it autodetects format

 * by header.content. Done for convenience.

 **/

exports.Inflate = Inflate;

exports.inflate = inflate;

exports.inflateRaw = inflateRaw;

exports.ungzip  = inflate;

},{"./utils/common":4,"./utils/strings":5,"./zlib/constants":7,"./zlib/gzheader":10,"./zlib/inflate.js":12,"./zlib/messages":14,"./zlib/zstream":16}],4:[function(require,module,exports){

'use strict';

var TYPED_OK =  (typeof Uint8Array !== 'undefined') &&

                (typeof Uint16Array !== 'undefined') &&

                (typeof Int32Array !== 'undefined');

exports.assign = function (obj /*from1, from2, from3, ...*/) {

  var sources = Array.prototype.slice.call(arguments, 1);

  while (sources.length) {

    var source = sources.shift();

    if (!source) { continue; }

    if (typeof source !== 'object') {

      throw new TypeError(source + 'must be non-object');

    }

    for (var p in source) {

      if (source.hasOwnProperty(p)) {

        obj[p] = source[p];

      }

    }

  }

  return obj;

};

// reduce buffer size, avoiding mem copy

exports.shrinkBuf = function (buf, size) {

  if (buf.length === size) { return buf; }

  if (buf.subarray) { return buf.subarray(0, size); }

  buf.length = size;

  return buf;

};

var fnTyped = {

  arraySet: function (dest, src, src_offs, len, dest_offs) {

    if (src.subarray && dest.subarray) {

      dest.set(src.subarray(src_offs, src_offs+len), dest_offs);

      return;

    }

    // Fallback to ordinary array

    for (var i=0; i<len; i++) {

      dest[dest_offs + i] = src[src_offs + i];

    }

  },

  // Join array of chunks to single array.

  flattenChunks: function(chunks) {

    var i, l, len, pos, chunk, result;

    // calculate data length

    len = 0;

    for (i=0, l=chunks.length; i<l; i++) {

      len += chunks[i].length;

    }

    // join chunks

    result = new Uint8Array(len);

    pos = 0;

    for (i=0, l=chunks.length; i<l; i++) {

      chunk = chunks[i];

      result.set(chunk, pos);

      pos += chunk.length;

    }

    return result;

  }

};

var fnUntyped = {

  arraySet: function (dest, src, src_offs, len, dest_offs) {

    for (var i=0; i<len; i++) {

      dest[dest_offs + i] = src[src_offs + i];

    }

  },

  // Join array of chunks to single array.

  flattenChunks: function(chunks) {

    return [].concat.apply([], chunks);

  }

};

// Enable/Disable typed arrays use, for testing

//

exports.setTyped = function (on) {

  if (on) {

    exports.Buf8  = Uint8Array;

    exports.Buf16 = Uint16Array;

    exports.Buf32 = Int32Array;

    exports.assign(exports, fnTyped);

  } else {

    exports.Buf8  = Array;

    exports.Buf16 = Array;

    exports.Buf32 = Array;

    exports.assign(exports, fnUntyped);

  }

};

exports.setTyped(TYPED_OK);

},{}],5:[function(require,module,exports){

// String encode/decode helpers

'use strict';

var utils = require('./common');

// Quick check if we can use fast array to bin string conversion

//

// - apply(Array) can fail on Android 2.2

// - apply(Uint8Array) can fail on iOS 5.1 Safary

//

var STR_APPLY_OK = true;

var STR_APPLY_UIA_OK = true;

try { String.fromCharCode.apply(null, [0]); } catch(__) { STR_APPLY_OK = false; }

try { String.fromCharCode.apply(null, new Uint8Array(1)); } catch(__) { STR_APPLY_UIA_OK = false; }

// Table with utf8 lengths (calculated by first byte of sequence)

// Note, that 5 & 6-byte values and some 4-byte values can not be represented in JS,

// because max possible codepoint is 0x10ffff

var _utf8len = new utils.Buf8(256);

for (var q=0; q<256; q++) {

  _utf8len[q] = (q >= 252 ? 6 : q >= 248 ? 5 : q >= 240 ? 4 : q >= 224 ? 3 : q >= 192 ? 2 : 1);

}

_utf8len[254]=_utf8len[254]=1; // Invalid sequence start

// convert string to array (typed, when possible)

exports.string2buf = function (str) {

  var buf, c, c2, m_pos, i, str_len = str.length, buf_len = 0;

  // count binary size

  for (m_pos = 0; m_pos < str_len; m_pos++) {

    c = str.charCodeAt(m_pos);

    if ((c & 0xfc00) === 0xd800 && (m_pos+1 < str_len)) {

      c2 = str.charCodeAt(m_pos+1);

      if ((c2 & 0xfc00) === 0xdc00) {

        c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);

        m_pos++;

      }

    }

    buf_len += c < 0x80 ? 1 : c < 0x800 ? 2 : c < 0x10000 ? 3 : 4;

  }

  // allocate buffer

  buf = new utils.Buf8(buf_len);

  // convert

  for (i=0, m_pos = 0; i < buf_len; m_pos++) {

    c = str.charCodeAt(m_pos);

    if ((c & 0xfc00) === 0xd800 && (m_pos+1 < str_len)) {

      c2 = str.charCodeAt(m_pos+1);

      if ((c2 & 0xfc00) === 0xdc00) {

        c = 0x10000 + ((c - 0xd800) << 10) + (c2 - 0xdc00);

        m_pos++;

      }

    }

    if (c < 0x80) {

      /* one byte */

      buf[i++] = c;

    } else if (c < 0x800) {

      /* two bytes */

      buf[i++] = 0xC0 | (c >>> 6);

      buf[i++] = 0x80 | (c & 0x3f);

    } else if (c < 0x10000) {

      /* three bytes */

      buf[i++] = 0xE0 | (c >>> 12);

      buf[i++] = 0x80 | (c >>> 6 & 0x3f);

      buf[i++] = 0x80 | (c & 0x3f);

    } else {

      /* four bytes */

      buf[i++] = 0xf0 | (c >>> 18);

      buf[i++] = 0x80 | (c >>> 12 & 0x3f);

      buf[i++] = 0x80 | (c >>> 6 & 0x3f);

      buf[i++] = 0x80 | (c & 0x3f);

    }

  }

  return buf;

};

// Helper (used in 2 places)

function buf2binstring(buf, len) {

  // use fallback for big arrays to avoid stack overflow

  if (len < 65537) {

    if ((buf.subarray && STR_APPLY_UIA_OK) || (!buf.subarray && STR_APPLY_OK)) {

      return String.fromCharCode.apply(null, utils.shrinkBuf(buf, len));

    }

  }

  var result = '';

  for (var i=0; i < len; i++) {

    result += String.fromCharCode(buf[i]);

  }

  return result;

}

// Convert byte array to binary string

exports.buf2binstring = function(buf) {

  return buf2binstring(buf, buf.length);

};

// Convert binary string (typed, when possible)

exports.binstring2buf = function(str) {

  var buf = new utils.Buf8(str.length);

  for (var i=0, len=buf.length; i < len; i++) {

    buf[i] = str.charCodeAt(i);

  }

  return buf;

};

// convert array to string

exports.buf2string = function (buf, max) {

  var i, out, c, c_len;

  var len = max || buf.length;

  // Reserve max possible length (2 words per char)

  // NB: by unknown reasons, Array is significantly faster for

  //     String.fromCharCode.apply than Uint16Array.

  var utf16buf = new Array(len*2);

  for (out=0, i=0; i<len;) {

    c = buf[i++];

    // quick process ascii

    if (c < 0x80) { utf16buf[out++] = c; continue; }

    c_len = _utf8len[c];

    // skip 5 & 6 byte codes

    if (c_len > 4) { utf16buf[out++] = 0xfffd; i += c_len-1; continue; }

    // apply mask on first byte

    c &= c_len === 2 ? 0x1f : c_len === 3 ? 0x0f : 0x07;

    // join the rest

    while (c_len > 1 && i < len) {

      c = (c << 6) | (buf[i++] & 0x3f);

      c_len--;

    }

    // terminated by end of string?

    if (c_len > 1) { utf16buf[out++] = 0xfffd; continue; }

    if (c < 0x10000) {

      utf16buf[out++] = c;

    } else {

      c -= 0x10000;

      utf16buf[out++] = 0xd800 | ((c >> 10) & 0x3ff);

      utf16buf[out++] = 0xdc00 | (c & 0x3ff);

    }

  }

  return buf2binstring(utf16buf, out);

};

// Calculate max possible position in utf8 buffer,

// that will not break sequence. If that's not possible

// - (very small limits) return max size as is.

//

// buf[] - utf8 bytes array

// max   - length limit (mandatory);

exports.utf8border = function(buf, max) {

  var pos;

  max = max || buf.length;

  if (max > buf.length) { max = buf.length; }

  // go back from last position, until start of sequence found

  pos = max-1;

  while (pos >= 0 && (buf[pos] & 0xC0) === 0x80) { pos--; }

  // Fuckup - very small and broken sequence,

  // return max, because we should return something anyway.

  if (pos < 0) { return max; }

  // If we came to start of buffer - that means vuffer is too small,

  // return max too.

  if (pos === 0) { return max; }

  return (pos + _utf8len[buf[pos]] > max) ? pos : max;

};

},{"./common":4}],6:[function(require,module,exports){

'use strict';

// Note: adler32 takes 12% for level 0 and 2% for level 6.

// It doesn't worth to make additional optimizationa as in original.

// Small size is preferable.

function adler32(adler, buf, len, pos) {

  var s1 = (adler & 0xffff) |0,

      s2 = ((adler >>> 16) & 0xffff) |0,

      n = 0;

  while (len !== 0) {

    // Set limit ~ twice less than 5552, to keep

    // s2 in 31-bits, because we force signed ints.

    // in other case %= will fail.

    n = len > 2000 ? 2000 : len;

    len -= n;

    do {

      s1 = (s1 + buf[pos++]) |0;

      s2 = (s2 + s1) |0;

    } while (--n);

    s1 %= 65521;

    s2 %= 65521;

  }

  return (s1 | (s2 << 16)) |0;

}

module.exports = adler32;

},{}],7:[function(require,module,exports){

module.exports = {