jspaint/lib/anypalette-0.6.0.js

// This library is PATCHED to expose format objects for LoadingErrors.
// See "__PATCHED_LIB_TO_ADD_THIS__format" below.

/**
 * Modules in this bundle
 * @license
 *
 * anypalette:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   author: Isaiah Odhner <isaiahodhner@gmail.com>
 *   homepage: https://1j01.github.io/anypalette.js/
 *   version: 0.6.0
 *
 * base64-js:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   author: T. Jameson Little <t.jameson.little@gmail.com>
 *   homepage: https://github.com/beatgammit/base64-js
 *   version: 1.5.1
 *
 * browser-resolve:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   author: Roman Shtylman <shtylman@gmail.com>
 *   homepage: https://github.com/browserify/browser-resolve#readme
 *   version: 2.0.0
 *
 * buffer:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   author: Feross Aboukhadijeh <feross@feross.org>
 *   contributors: Romain Beauxis <toots@rastageeks.org>, James Halliday <mail@substack.net>
 *   homepage: https://github.com/feross/buffer
 *   version: 5.2.1
 *
 * css.escape:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   author: Mathias Bynens
 *   homepage: https://mths.be/cssescape
 *   version: 1.5.1
 *
 * events:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   author: Irakli Gozalishvili <rfobic@gmail.com>
 *   homepage: https://github.com/Gozala/events#readme
 *   version: 3.2.0
 *
 * ieee754:
 *   license: BSD-3-Clause (http://opensource.org/licenses/BSD-3-Clause)
 *   author: Feross Aboukhadijeh <feross@feross.org>
 *   contributors: Romain Beauxis <toots@rastageeks.org>
 *   homepage: https://github.com/feross/ieee754#readme
 *   version: 1.2.1
 *
 * inherits:
 *   license: ISC (http://opensource.org/licenses/ISC)
 *   homepage: https://github.com/isaacs/inherits#readme
 *   version: 2.0.4
 *
 * jdataview:
 *   licenses: WTFPL (http://www.wtfpl.net/about/)
 *   author: Vjeux <vjeuxx@gmail.com>
 *   contributors: Vjeux <vjeuxx@gmail.com>, RReverser <me@rreverser.com>
 *   homepage: http://jDataView.github.io/
 *   version: 2.5.0
 *
 * process:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   author: Roman Shtylman <shtylman@gmail.com>
 *   homepage: https://github.com/shtylman/node-process#readme
 *   version: 0.11.10
 *
 * readable-stream:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   homepage: https://github.com/nodejs/readable-stream#readme
 *   version: 3.6.0
 *
 * safe-buffer:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   author: Feross Aboukhadijeh <feross@feross.org>
 *   homepage: https://github.com/feross/safe-buffer
 *   version: 5.1.2
 *
 * sax:
 *   license: ISC (http://opensource.org/licenses/ISC)
 *   author: Isaac Z. Schlueter <i@izs.me>
 *   homepage: https://github.com/isaacs/sax-js#readme
 *   version: 1.2.4
 *
 * stream-browserify:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   author: James Halliday <mail@substack.net>
 *   homepage: https://github.com/browserify/stream-browserify
 *   version: 3.0.0
 *
 * string_decoder:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   homepage: https://github.com/nodejs/string_decoder
 *   version: 1.1.1
 *
 * util-deprecate:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   author: Nathan Rajlich <nathan@tootallnate.net>
 *   homepage: https://github.com/TooTallNate/util-deprecate
 *   version: 1.0.2
 *
 * xml-js:
 *   license: MIT (http://opensource.org/licenses/MIT)
 *   author: Yousuf Almarzooqi <ysf953@gmail.com>
 *   homepage: https://github.com/nashwaan/xml-js#readme
 *   version: 1.6.11
 *
 * This header is generated by licensify (https://github.com/twada/licensify)
 */
(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.AnyPalette = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
'use strict'

exports.byteLength = byteLength
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray

var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array

var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
  lookup[i] = code[i]
  revLookup[code.charCodeAt(i)] = i
}

// Support decoding URL-safe base64 strings, as Node.js does.
// See: https://en.wikipedia.org/wiki/Base64#URL_applications
revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63

function getLens (b64) {
  var len = b64.length

  if (len % 4 > 0) {
    throw new Error('Invalid string. Length must be a multiple of 4')
  }

  // Trim off extra bytes after placeholder bytes are found
  // See: https://github.com/beatgammit/base64-js/issues/42
  var validLen = b64.indexOf('=')
  if (validLen === -1) validLen = len

  var placeHoldersLen = validLen === len
    ? 0
    : 4 - (validLen % 4)

  return [validLen, placeHoldersLen]
}

// base64 is 4/3 + up to two characters of the original data
function byteLength (b64) {
  var lens = getLens(b64)
  var validLen = lens[0]
  var placeHoldersLen = lens[1]
  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}

function _byteLength (b64, validLen, placeHoldersLen) {
  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}

function toByteArray (b64) {
  var tmp
  var lens = getLens(b64)
  var validLen = lens[0]
  var placeHoldersLen = lens[1]

  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))

  var curByte = 0

  // if there are placeholders, only get up to the last complete 4 chars
  var len = placeHoldersLen > 0
    ? validLen - 4
    : validLen

  var i
  for (i = 0; i < len; i += 4) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 18) |
      (revLookup[b64.charCodeAt(i + 1)] << 12) |
      (revLookup[b64.charCodeAt(i + 2)] << 6) |
      revLookup[b64.charCodeAt(i + 3)]
    arr[curByte++] = (tmp >> 16) & 0xFF
    arr[curByte++] = (tmp >> 8) & 0xFF
    arr[curByte++] = tmp & 0xFF
  }

  if (placeHoldersLen === 2) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 2) |
      (revLookup[b64.charCodeAt(i + 1)] >> 4)
    arr[curByte++] = tmp & 0xFF
  }

  if (placeHoldersLen === 1) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 10) |
      (revLookup[b64.charCodeAt(i + 1)] << 4) |
      (revLookup[b64.charCodeAt(i + 2)] >> 2)
    arr[curByte++] = (tmp >> 8) & 0xFF
    arr[curByte++] = tmp & 0xFF
  }

  return arr
}

function tripletToBase64 (num) {
  return lookup[num >> 18 & 0x3F] +
    lookup[num >> 12 & 0x3F] +
    lookup[num >> 6 & 0x3F] +
    lookup[num & 0x3F]
}

function encodeChunk (uint8, start, end) {
  var tmp
  var output = []
  for (var i = start; i < end; i += 3) {
    tmp =
      ((uint8[i] << 16) & 0xFF0000) +
      ((uint8[i + 1] << 8) & 0xFF00) +
      (uint8[i + 2] & 0xFF)
    output.push(tripletToBase64(tmp))
  }
  return output.join('')
}

function fromByteArray (uint8) {
  var tmp
  var len = uint8.length
  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
  var parts = []
  var maxChunkLength = 16383 // must be multiple of 3

  // go through the array every three bytes, we'll deal with trailing stuff later
  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
  }

  // pad the end with zeros, but make sure to not forget the extra bytes
  if (extraBytes === 1) {
    tmp = uint8[len - 1]
    parts.push(
      lookup[tmp >> 2] +
      lookup[(tmp << 4) & 0x3F] +
      '=='
    )
  } else if (extraBytes === 2) {
    tmp = (uint8[len - 2] << 8) + uint8[len - 1]
    parts.push(
      lookup[tmp >> 10] +
      lookup[(tmp >> 4) & 0x3F] +
      lookup[(tmp << 2) & 0x3F] +
      '='
    )
  }

  return parts.join('')
}

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

},{}],3:[function(require,module,exports){
(function (Buffer){(function (){
/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <https://feross.org>
 * @license  MIT
 */
/* eslint-disable no-proto */

'use strict'

var base64 = require('base64-js')
var ieee754 = require('ieee754')

exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50

var K_MAX_LENGTH = 0x7fffffff
exports.kMaxLength = K_MAX_LENGTH

/**
 * If `Buffer.TYPED_ARRAY_SUPPORT`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Print warning and recommend using `buffer` v4.x which has an Object
 *               implementation (most compatible, even IE6)
 *
 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
 * Opera 11.6+, iOS 4.2+.
 *
 * We report that the browser does not support typed arrays if the are not subclassable
 * using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
 * (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
 * for __proto__ and has a buggy typed array implementation.
 */
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()

if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
    typeof console.error === 'function') {
  console.error(
    'This browser lacks typed array (Uint8Array) support which is required by ' +
    '`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
  )
}

function typedArraySupport () {
  // Can typed array instances can be augmented?
  try {
    var arr = new Uint8Array(1)
    arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } }
    return arr.foo() === 42
  } catch (e) {
    return false
  }
}

Object.defineProperty(Buffer.prototype, 'parent', {
  enumerable: true,
  get: function () {
    if (!Buffer.isBuffer(this)) return undefined
    return this.buffer
  }
})

Object.defineProperty(Buffer.prototype, 'offset', {
  enumerable: true,
  get: function () {
    if (!Buffer.isBuffer(this)) return undefined
    return this.byteOffset
  }
})

function createBuffer (length) {
  if (length > K_MAX_LENGTH) {
    throw new RangeError('The value "' + length + '" is invalid for option "size"')
  }
  // Return an augmented `Uint8Array` instance
  var buf = new Uint8Array(length)
  buf.__proto__ = Buffer.prototype
  return buf
}

/**
 * The Buffer constructor returns instances of `Uint8Array` that have their
 * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
 * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
 * and the `Uint8Array` methods. Square bracket notation works as expected -- it
 * returns a single octet.
 *
 * The `Uint8Array` prototype remains unmodified.
 */

function Buffer (arg, encodingOrOffset, length) {
  // Common case.
  if (typeof arg === 'number') {
    if (typeof encodingOrOffset === 'string') {
      throw new TypeError(
        'The "string" argument must be of type string. Received type number'
      )
    }
    return allocUnsafe(arg)
  }
  return from(arg, encodingOrOffset, length)
}

// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
if (typeof Symbol !== 'undefined' && Symbol.species != null &&
    Buffer[Symbol.species] === Buffer) {
  Object.defineProperty(Buffer, Symbol.species, {
    value: null,
    configurable: true,
    enumerable: false,
    writable: false
  })
}

Buffer.poolSize = 8192 // not used by this implementation

function from (value, encodingOrOffset, length) {
  if (typeof value === 'string') {
    return fromString(value, encodingOrOffset)
  }

  if (ArrayBuffer.isView(value)) {
    return fromArrayLike(value)
  }

  if (value == null) {
    throw TypeError(
      'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
      'or Array-like Object. Received type ' + (typeof value)
    )
  }

  if (isInstance(value, ArrayBuffer) ||
      (value && isInstance(value.buffer, ArrayBuffer))) {
    return fromArrayBuffer(value, encodingOrOffset, length)
  }

  if (typeof value === 'number') {
    throw new TypeError(
      'The "value" argument must not be of type number. Received type number'
    )
  }

  var valueOf = value.valueOf && value.valueOf()
  if (valueOf != null && valueOf !== value) {
    return Buffer.from(valueOf, encodingOrOffset, length)
  }

  var b = fromObject(value)
  if (b) return b

  if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
      typeof value[Symbol.toPrimitive] === 'function') {
    return Buffer.from(
      value[Symbol.toPrimitive]('string'), encodingOrOffset, length
    )
  }

  throw new TypeError(
    'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
    'or Array-like Object. Received type ' + (typeof value)
  )
}

/**
 * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
 * if value is a number.
 * Buffer.from(str[, encoding])
 * Buffer.from(array)
 * Buffer.from(buffer)
 * Buffer.from(arrayBuffer[, byteOffset[, length]])
 **/
Buffer.from = function (value, encodingOrOffset, length) {
  return from(value, encodingOrOffset, length)
}

// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
// https://github.com/feross/buffer/pull/148
Buffer.prototype.__proto__ = Uint8Array.prototype
Buffer.__proto__ = Uint8Array

function assertSize (size) {
  if (typeof size !== 'number') {
    throw new TypeError('"size" argument must be of type number')
  } else if (size < 0) {
    throw new RangeError('The value "' + size + '" is invalid for option "size"')
  }
}

function alloc (size, fill, encoding) {
  assertSize(size)
  if (size <= 0) {
    return createBuffer(size)
  }
  if (fill !== undefined) {
    // Only pay attention to encoding if it's a string. This
    // prevents accidentally sending in a number that would
    // be interpretted as a start offset.
    return typeof encoding === 'string'
      ? createBuffer(size).fill(fill, encoding)
      : createBuffer(size).fill(fill)
  }
  return createBuffer(size)
}

/**
 * Creates a new filled Buffer instance.
 * alloc(size[, fill[, encoding]])
 **/
Buffer.alloc = function (size, fill, encoding) {
  return alloc(size, fill, encoding)
}

function allocUnsafe (size) {
  assertSize(size)
  return createBuffer(size < 0 ? 0 : checked(size) | 0)
}

/**
 * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
 * */
Buffer.allocUnsafe = function (size) {
  return allocUnsafe(size)
}
/**
 * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
 */
Buffer.allocUnsafeSlow = function (size) {
  return allocUnsafe(size)
}

function fromString (string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') {
    encoding = 'utf8'
  }

  if (!Buffer.isEncoding(encoding)) {
    throw new TypeError('Unknown encoding: ' + encoding)
  }

  var length = byteLength(string, encoding) | 0
  var buf = createBuffer(length)

  var actual = buf.write(string, encoding)

  if (actual !== length) {
    // Writing a hex string, for example, that contains invalid characters will
    // cause everything after the first invalid character to be ignored. (e.g.
    // 'abxxcd' will be treated as 'ab')
    buf = buf.slice(0, actual)
  }

  return buf
}

function fromArrayLike (array) {
  var length = array.length < 0 ? 0 : checked(array.length) | 0
  var buf = createBuffer(length)
  for (var i = 0; i < length; i += 1) {
    buf[i] = array[i] & 255
  }
  return buf
}

function fromArrayBuffer (array, byteOffset, length) {
  if (byteOffset < 0 || array.byteLength < byteOffset) {
    throw new RangeError('"offset" is outside of buffer bounds')
  }

  if (array.byteLength < byteOffset + (length || 0)) {
    throw new RangeError('"length" is outside of buffer bounds')
  }

  var buf
  if (byteOffset === undefined && length === undefined) {
    buf = new Uint8Array(array)
  } else if (length === undefined) {
    buf = new Uint8Array(array, byteOffset)
  } else {
    buf = new Uint8Array(array, byteOffset, length)
  }

  // Return an augmented `Uint8Array` instance
  buf.__proto__ = Buffer.prototype
  return buf
}

function fromObject (obj) {
  if (Buffer.isBuffer(obj)) {
    var len = checked(obj.length) | 0
    var buf = createBuffer(len)

    if (buf.length === 0) {
      return buf
    }

    obj.copy(buf, 0, 0, len)
    return buf
  }

  if (obj.length !== undefined) {
    if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
      return createBuffer(0)
    }
    return fromArrayLike(obj)
  }

  if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
    return fromArrayLike(obj.data)
  }
}

function checked (length) {
  // Note: cannot use `length < K_MAX_LENGTH` here because that fails when
  // length is NaN (which is otherwise coerced to zero.)
  if (length >= K_MAX_LENGTH) {
    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
                         'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
  }
  return length | 0
}

function SlowBuffer (length) {
  if (+length != length) { // eslint-disable-line eqeqeq
    length = 0
  }
  return Buffer.alloc(+length)
}

Buffer.isBuffer = function isBuffer (b) {
  return b != null && b._isBuffer === true &&
    b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
}

Buffer.compare = function compare (a, b) {
  if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
  if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
    throw new TypeError(
      'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
    )
  }

  if (a === b) return 0

  var x = a.length
  var y = b.length

  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
    if (a[i] !== b[i]) {
      x = a[i]
      y = b[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

Buffer.isEncoding = function isEncoding (encoding) {
  switch (String(encoding).toLowerCase()) {
    case 'hex':
    case 'utf8':
    case 'utf-8':
    case 'ascii':
    case 'latin1':
    case 'binary':
    case 'base64':
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      return true
    default:
      return false
  }
}

Buffer.concat = function concat (list, length) {
  if (!Array.isArray(list)) {
    throw new TypeError('"list" argument must be an Array of Buffers')
  }

  if (list.length === 0) {
    return Buffer.alloc(0)
  }

  var i
  if (length === undefined) {
    length = 0
    for (i = 0; i < list.length; ++i) {
      length += list[i].length
    }
  }

  var buffer = Buffer.allocUnsafe(length)
  var pos = 0
  for (i = 0; i < list.length; ++i) {
    var buf = list[i]
    if (isInstance(buf, Uint8Array)) {
      buf = Buffer.from(buf)
    }
    if (!Buffer.isBuffer(buf)) {
      throw new TypeError('"list" argument must be an Array of Buffers')
    }
    buf.copy(buffer, pos)
    pos += buf.length
  }
  return buffer
}

function byteLength (string, encoding) {
  if (Buffer.isBuffer(string)) {
    return string.length
  }
  if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
    return string.byteLength
  }
  if (typeof string !== 'string') {
    throw new TypeError(
      'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
      'Received type ' + typeof string
    )
  }

  var len = string.length
  var mustMatch = (arguments.length > 2 && arguments[2] === true)
  if (!mustMatch && len === 0) return 0

  // Use a for loop to avoid recursion
  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'ascii':
      case 'latin1':
      case 'binary':
        return len
      case 'utf8':
      case 'utf-8':
        return utf8ToBytes(string).length
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return len * 2
      case 'hex':
        return len >>> 1
      case 'base64':
        return base64ToBytes(string).length
      default:
        if (loweredCase) {
          return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
        }
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}
Buffer.byteLength = byteLength

function slowToString (encoding, start, end) {
  var loweredCase = false

  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
  // property of a typed array.

  // This behaves neither like String nor Uint8Array in that we set start/end
  // to their upper/lower bounds if the value passed is out of range.
  // undefined is handled specially as per ECMA-262 6th Edition,
  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
  if (start === undefined || start < 0) {
    start = 0
  }
  // Return early if start > this.length. Done here to prevent potential uint32
  // coercion fail below.
  if (start > this.length) {
    return ''
  }

  if (end === undefined || end > this.length) {
    end = this.length
  }

  if (end <= 0) {
    return ''
  }

  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
  end >>>= 0
  start >>>= 0

  if (end <= start) {
    return ''
  }

  if (!encoding) encoding = 'utf8'

  while (true) {
    switch (encoding) {
      case 'hex':
        return hexSlice(this, start, end)

      case 'utf8':
      case 'utf-8':
        return utf8Slice(this, start, end)

      case 'ascii':
        return asciiSlice(this, start, end)

      case 'latin1':
      case 'binary':
        return latin1Slice(this, start, end)

      case 'base64':
        return base64Slice(this, start, end)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return utf16leSlice(this, start, end)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = (encoding + '').toLowerCase()
        loweredCase = true
    }
  }
}

// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
// reliably in a browserify context because there could be multiple different
// copies of the 'buffer' package in use. This method works even for Buffer
// instances that were created from another copy of the `buffer` package.
// See: https://github.com/feross/buffer/issues/154
Buffer.prototype._isBuffer = true

function swap (b, n, m) {
  var i = b[n]
  b[n] = b[m]
  b[m] = i
}

Buffer.prototype.swap16 = function swap16 () {
  var len = this.length
  if (len % 2 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 16-bits')
  }
  for (var i = 0; i < len; i += 2) {
    swap(this, i, i + 1)
  }
  return this
}

Buffer.prototype.swap32 = function swap32 () {
  var len = this.length
  if (len % 4 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 32-bits')
  }
  for (var i = 0; i < len; i += 4) {
    swap(this, i, i + 3)
    swap(this, i + 1, i + 2)
  }
  return this
}

Buffer.prototype.swap64 = function swap64 () {
  var len = this.length
  if (len % 8 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 64-bits')
  }
  for (var i = 0; i < len; i += 8) {
    swap(this, i, i + 7)
    swap(this, i + 1, i + 6)
    swap(this, i + 2, i + 5)
    swap(this, i + 3, i + 4)
  }
  return this
}

Buffer.prototype.toString = function toString () {
  var length = this.length
  if (length === 0) return ''
  if (arguments.length === 0) return utf8Slice(this, 0, length)
  return slowToString.apply(this, arguments)
}

Buffer.prototype.toLocaleString = Buffer.prototype.toString

Buffer.prototype.equals = function equals (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return true
  return Buffer.compare(this, b) === 0
}

Buffer.prototype.inspect = function inspect () {
  var str = ''
  var max = exports.INSPECT_MAX_BYTES
  str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
  if (this.length > max) str += ' ... '
  return '<Buffer ' + str + '>'
}

Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
  if (isInstance(target, Uint8Array)) {
    target = Buffer.from(target, target.offset, target.byteLength)
  }
  if (!Buffer.isBuffer(target)) {
    throw new TypeError(
      'The "target" argument must be one of type Buffer or Uint8Array. ' +
      'Received type ' + (typeof target)
    )
  }

  if (start === undefined) {
    start = 0
  }
  if (end === undefined) {
    end = target ? target.length : 0
  }
  if (thisStart === undefined) {
    thisStart = 0
  }
  if (thisEnd === undefined) {
    thisEnd = this.length
  }

  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
    throw new RangeError('out of range index')
  }

  if (thisStart >= thisEnd && start >= end) {
    return 0
  }
  if (thisStart >= thisEnd) {
    return -1
  }
  if (start >= end) {
    return 1
  }

  start >>>= 0
  end >>>= 0
  thisStart >>>= 0
  thisEnd >>>= 0

  if (this === target) return 0

  var x = thisEnd - thisStart
  var y = end - start
  var len = Math.min(x, y)

  var thisCopy = this.slice(thisStart, thisEnd)
  var targetCopy = target.slice(start, end)

  for (var i = 0; i < len; ++i) {
    if (thisCopy[i] !== targetCopy[i]) {
      x = thisCopy[i]
      y = targetCopy[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
  // Empty buffer means no match
  if (buffer.length === 0) return -1

  // Normalize byteOffset
  if (typeof byteOffset === 'string') {
    encoding = byteOffset
    byteOffset = 0
  } else if (byteOffset > 0x7fffffff) {
    byteOffset = 0x7fffffff
  } else if (byteOffset < -0x80000000) {
    byteOffset = -0x80000000
  }
  byteOffset = +byteOffset // Coerce to Number.
  if (numberIsNaN(byteOffset)) {
    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
    byteOffset = dir ? 0 : (buffer.length - 1)
  }

  // Normalize byteOffset: negative offsets start from the end of the buffer
  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
  if (byteOffset >= buffer.length) {
    if (dir) return -1
    else byteOffset = buffer.length - 1
  } else if (byteOffset < 0) {
    if (dir) byteOffset = 0
    else return -1
  }

  // Normalize val
  if (typeof val === 'string') {
    val = Buffer.from(val, encoding)
  }

  // Finally, search either indexOf (if dir is true) or lastIndexOf
  if (Buffer.isBuffer(val)) {
    // Special case: looking for empty string/buffer always fails
    if (val.length === 0) {
      return -1
    }
    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
  } else if (typeof val === 'number') {
    val = val & 0xFF // Search for a byte value [0-255]
    if (typeof Uint8Array.prototype.indexOf === 'function') {
      if (dir) {
        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
      } else {
        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
      }
    }
    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
  }

  throw new TypeError('val must be string, number or Buffer')
}

function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
  var indexSize = 1
  var arrLength = arr.length
  var valLength = val.length

  if (encoding !== undefined) {
    encoding = String(encoding).toLowerCase()
    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
        encoding === 'utf16le' || encoding === 'utf-16le') {
      if (arr.length < 2 || val.length < 2) {
        return -1
      }
      indexSize = 2
      arrLength /= 2
      valLength /= 2
      byteOffset /= 2
    }
  }

  function read (buf, i) {
    if (indexSize === 1) {
      return buf[i]
    } else {
      return buf.readUInt16BE(i * indexSize)
    }
  }

  var i
  if (dir) {
    var foundIndex = -1
    for (i = byteOffset; i < arrLength; i++) {
      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
        if (foundIndex === -1) foundIndex = i
        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
      } else {
        if (foundIndex !== -1) i -= i - foundIndex
        foundIndex = -1
      }
    }
  } else {
    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
    for (i = byteOffset; i >= 0; i--) {
      var found = true
      for (var j = 0; j < valLength; j++) {
        if (read(arr, i + j) !== read(val, j)) {
          found = false
          break
        }
      }
      if (found) return i
    }
  }

  return -1
}

Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
  return this.indexOf(val, byteOffset, encoding) !== -1
}

Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}

Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}

function hexWrite (buf, string, offset, length) {
  offset = Number(offset) || 0
  var remaining = buf.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }

  var strLen = string.length

  if (length > strLen / 2) {
    length = strLen / 2
  }
  for (var i = 0; i < length; ++i) {
    var parsed = parseInt(string.substr(i * 2, 2), 16)
    if (numberIsNaN(parsed)) return i
    buf[offset + i] = parsed
  }
  return i
}

function utf8Write (buf, string, offset, length) {
  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}

function asciiWrite (buf, string, offset, length) {
  return blitBuffer(asciiToBytes(string), buf, offset, length)
}

function latin1Write (buf, string, offset, length) {
  return asciiWrite(buf, string, offset, length)
}

function base64Write (buf, string, offset, length) {
  return blitBuffer(base64ToBytes(string), buf, offset, length)
}

function ucs2Write (buf, string, offset, length) {
  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}

Buffer.prototype.write = function write (string, offset, length, encoding) {
  // Buffer#write(string)
  if (offset === undefined) {
    encoding = 'utf8'
    length = this.length
    offset = 0
  // Buffer#write(string, encoding)
  } else if (length === undefined && typeof offset === 'string') {
    encoding = offset
    length = this.length
    offset = 0
  // Buffer#write(string, offset[, length][, encoding])
  } else if (isFinite(offset)) {
    offset = offset >>> 0
    if (isFinite(length)) {
      length = length >>> 0
      if (encoding === undefined) encoding = 'utf8'
    } else {
      encoding = length
      length = undefined
    }
  } else {
    throw new Error(
      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
    )
  }

  var remaining = this.length - offset
  if (length === undefined || length > remaining) length = remaining

  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
    throw new RangeError('Attempt to write outside buffer bounds')
  }

  if (!encoding) encoding = 'utf8'

  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'hex':
        return hexWrite(this, string, offset, length)

      case 'utf8':
      case 'utf-8':
        return utf8Write(this, string, offset, length)

      case 'ascii':
        return asciiWrite(this, string, offset, length)

      case 'latin1':
      case 'binary':
        return latin1Write(this, string, offset, length)

      case 'base64':
        // Warning: maxLength not taken into account in base64Write
        return base64Write(this, string, offset, length)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return ucs2Write(this, string, offset, length)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toJSON = function toJSON () {
  return {
    type: 'Buffer',
    data: Array.prototype.slice.call(this._arr || this, 0)
  }
}

function base64Slice (buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64.fromByteArray(buf)
  } else {
    return base64.fromByteArray(buf.slice(start, end))
  }
}

function utf8Slice (buf, start, end) {
  end = Math.min(buf.length, end)
  var res = []

  var i = start
  while (i < end) {
    var firstByte = buf[i]
    var codePoint = null
    var bytesPerSequence = (firstByte > 0xEF) ? 4
      : (firstByte > 0xDF) ? 3
        : (firstByte > 0xBF) ? 2
          : 1

    if (i + bytesPerSequence <= end) {
      var secondByte, thirdByte, fourthByte, tempCodePoint

      switch (bytesPerSequence) {
        case 1:
          if (firstByte < 0x80) {
            codePoint = firstByte
          }
          break
        case 2:
          secondByte = buf[i + 1]
          if ((secondByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
            if (tempCodePoint > 0x7F) {
              codePoint = tempCodePoint
            }
          }
          break
        case 3:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
              codePoint = tempCodePoint
            }
          }
          break
        case 4:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          fourthByte = buf[i + 3]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
              codePoint = tempCodePoint
            }
          }
      }
    }

    if (codePoint === null) {
      // we did not generate a valid codePoint so insert a
      // replacement char (U+FFFD) and advance only 1 byte
      codePoint = 0xFFFD
      bytesPerSequence = 1
    } else if (codePoint > 0xFFFF) {
      // encode to utf16 (surrogate pair dance)
      codePoint -= 0x10000
      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
      codePoint = 0xDC00 | codePoint & 0x3FF
    }

    res.push(codePoint)
    i += bytesPerSequence
  }

  return decodeCodePointsArray(res)
}

// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000

function decodeCodePointsArray (codePoints) {
  var len = codePoints.length
  if (len <= MAX_ARGUMENTS_LENGTH) {
    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
  }

  // Decode in chunks to avoid "call stack size exceeded".
  var res = ''
  var i = 0
  while (i < len) {
    res += String.fromCharCode.apply(
      String,
      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
    )
  }
  return res
}

function asciiSlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i] & 0x7F)
  }
  return ret
}

function latin1Slice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i])
  }
  return ret
}

function hexSlice (buf, start, end) {
  var len = buf.length

  if (!start || start < 0) start = 0
  if (!end || end < 0 || end > len) end = len

  var out = ''
  for (var i = start; i < end; ++i) {
    out += toHex(buf[i])
  }
  return out
}

function utf16leSlice (buf, start, end) {
  var bytes = buf.slice(start, end)
  var res = ''
  for (var i = 0; i < bytes.length; i += 2) {
    res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
  }
  return res
}

Buffer.prototype.slice = function slice (start, end) {
  var len = this.length
  start = ~~start
  end = end === undefined ? len : ~~end

  if (start < 0) {
    start += len
    if (start < 0) start = 0
  } else if (start > len) {
    start = len
  }

  if (end < 0) {
    end += len
    if (end < 0) end = 0
  } else if (end > len) {
    end = len
  }

  if (end < start) end = start

  var newBuf = this.subarray(start, end)
  // Return an augmented `Uint8Array` instance
  newBuf.__proto__ = Buffer.prototype
  return newBuf
}

/*
 * Need to make sure that buffer isn't trying to write out of bounds.
 */
function checkOffset (offset, ext, length) {
  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}

Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }

  return val
}

Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    checkOffset(offset, byteLength, this.length)
  }

  var val = this[offset + --byteLength]
  var mul = 1
  while (byteLength > 0 && (mul *= 0x100)) {
    val += this[offset + --byteLength] * mul
  }

  return val
}

Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 1, this.length)
  return this[offset]
}

Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  return this[offset] | (this[offset + 1] << 8)
}

Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  return (this[offset] << 8) | this[offset + 1]
}

Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return ((this[offset]) |
      (this[offset + 1] << 8) |
      (this[offset + 2] << 16)) +
      (this[offset + 3] * 0x1000000)
}

Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] * 0x1000000) +
    ((this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    this[offset + 3])
}

Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var i = byteLength
  var mul = 1
  var val = this[offset + --i]
  while (i > 0 && (mul *= 0x100)) {
    val += this[offset + --i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 1, this.length)
  if (!(this[offset] & 0x80)) return (this[offset])
  return ((0xff - this[offset] + 1) * -1)
}

Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset] | (this[offset + 1] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset + 1] | (this[offset] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset]) |
    (this[offset + 1] << 8) |
    (this[offset + 2] << 16) |
    (this[offset + 3] << 24)
}

Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] << 24) |
    (this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    (this[offset + 3])
}

Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, true, 23, 4)
}

Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, false, 23, 4)
}

Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, true, 52, 8)
}

Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
  offset = offset >>> 0
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, false, 52, 8)
}

function checkInt (buf, value, offset, ext, max, min) {
  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
}

Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var mul = 1
  var i = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  byteLength = byteLength >>> 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var i = byteLength - 1
  var mul = 1
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  return offset + 2
}

Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  this[offset] = (value >>> 8)
  this[offset + 1] = (value & 0xff)
  return offset + 2
}

Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  this[offset + 3] = (value >>> 24)
  this[offset + 2] = (value >>> 16)
  this[offset + 1] = (value >>> 8)
  this[offset] = (value & 0xff)
  return offset + 4
}

Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  this[offset] = (value >>> 24)
  this[offset + 1] = (value >>> 16)
  this[offset + 2] = (value >>> 8)
  this[offset + 3] = (value & 0xff)
  return offset + 4
}

Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    var limit = Math.pow(2, (8 * byteLength) - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = 0
  var mul = 1
  var sub = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    var limit = Math.pow(2, (8 * byteLength) - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = byteLength - 1
  var mul = 1
  var sub = 0
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
  if (value < 0) value = 0xff + value + 1
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  return offset + 2
}

Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  this[offset] = (value >>> 8)
  this[offset + 1] = (value & 0xff)
  return offset + 2
}

Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  this[offset] = (value & 0xff)
  this[offset + 1] = (value >>> 8)
  this[offset + 2] = (value >>> 16)
  this[offset + 3] = (value >>> 24)
  return offset + 4
}

Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (value < 0) value = 0xffffffff + value + 1
  this[offset] = (value >>> 24)
  this[offset + 1] = (value >>> 16)
  this[offset + 2] = (value >>> 8)
  this[offset + 3] = (value & 0xff)
  return offset + 4
}

function checkIEEE754 (buf, value, offset, ext, max, min) {
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
  if (offset < 0) throw new RangeError('Index out of range')
}

function writeFloat (buf, value, offset, littleEndian, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
  }
  ieee754.write(buf, value, offset, littleEndian, 23, 4)
  return offset + 4
}

Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
  return writeFloat(this, value, offset, true, noAssert)
}

Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
  return writeFloat(this, value, offset, false, noAssert)
}

function writeDouble (buf, value, offset, littleEndian, noAssert) {
  value = +value
  offset = offset >>> 0
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
  }
  ieee754.write(buf, value, offset, littleEndian, 52, 8)
  return offset + 8
}

Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
  return writeDouble(this, value, offset, true, noAssert)
}

Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
  return writeDouble(this, value, offset, false, noAssert)
}

// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
  if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
  if (!start) start = 0
  if (!end && end !== 0) end = this.length
  if (targetStart >= target.length) targetStart = target.length
  if (!targetStart) targetStart = 0
  if (end > 0 && end < start) end = start

  // Copy 0 bytes; we're done
  if (end === start) return 0
  if (target.length === 0 || this.length === 0) return 0

  // Fatal error conditions
  if (targetStart < 0) {
    throw new RangeError('targetStart out of bounds')
  }
  if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
  if (end < 0) throw new RangeError('sourceEnd out of bounds')

  // Are we oob?
  if (end > this.length) end = this.length
  if (target.length - targetStart < end - start) {
    end = target.length - targetStart + start
  }

  var len = end - start

  if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
    // Use built-in when available, missing from IE11
    this.copyWithin(targetStart, start, end)
  } else if (this === target && start < targetStart && targetStart < end) {
    // descending copy from end
    for (var i = len - 1; i >= 0; --i) {
      target[i + targetStart] = this[i + start]
    }
  } else {
    Uint8Array.prototype.set.call(
      target,
      this.subarray(start, end),
      targetStart
    )
  }

  return len
}

// Usage:
//    buffer.fill(number[, offset[, end]])
//    buffer.fill(buffer[, offset[, end]])
//    buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
  // Handle string cases:
  if (typeof val === 'string') {
    if (typeof start === 'string') {
      encoding = start
      start = 0
      end = this.length
    } else if (typeof end === 'string') {
      encoding = end
      end = this.length
    }
    if (encoding !== undefined && typeof encoding !== 'string') {
      throw new TypeError('encoding must be a string')
    }
    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
      throw new TypeError('Unknown encoding: ' + encoding)
    }
    if (val.length === 1) {
      var code = val.charCodeAt(0)
      if ((encoding === 'utf8' && code < 128) ||
          encoding === 'latin1') {
        // Fast path: If `val` fits into a single byte, use that numeric value.
        val = code
      }
    }
  } else if (typeof val === 'number') {
    val = val & 255
  }

  // Invalid ranges are not set to a default, so can range check early.
  if (start < 0 || this.length < start || this.length < end) {
    throw new RangeError('Out of range index')
  }

  if (end <= start) {
    return this
  }

  start = start >>> 0
  end = end === undefined ? this.length : end >>> 0

  if (!val) val = 0

  var i
  if (typeof val === 'number') {
    for (i = start; i < end; ++i) {
      this[i] = val
    }
  } else {
    var bytes = Buffer.isBuffer(val)
      ? val
      : Buffer.from(val, encoding)
    var len = bytes.length
    if (len === 0) {
      throw new TypeError('The value "' + val +
        '" is invalid for argument "value"')
    }
    for (i = 0; i < end - start; ++i) {
      this[i + start] = bytes[i % len]
    }
  }

  return this
}

// HELPER FUNCTIONS
// ================

var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g

function base64clean (str) {
  // Node takes equal signs as end of the Base64 encoding
  str = str.split('=')[0]
  // Node strips out invalid characters like \n and \t from the string, base64-js does not
  str = str.trim().replace(INVALID_BASE64_RE, '')
  // Node converts strings with length < 2 to ''
  if (str.length < 2) return ''
  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
  while (str.length % 4 !== 0) {
    str = str + '='
  }
  return str
}

function toHex (n) {
  if (n < 16) return '0' + n.toString(16)
  return n.toString(16)
}

function utf8ToBytes (string, units) {
  units = units || Infinity
  var codePoint
  var length = string.length
  var leadSurrogate = null
  var bytes = []

  for (var i = 0; i < length; ++i) {
    codePoint = string.charCodeAt(i)

    // is surrogate component
    if (codePoint > 0xD7FF && codePoint < 0xE000) {
      // last char was a lead
      if (!leadSurrogate) {
        // no lead yet
        if (codePoint > 0xDBFF) {
          // unexpected trail
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        } else if (i + 1 === length) {
          // unpaired lead
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        }

        // valid lead
        leadSurrogate = codePoint

        continue
      }

      // 2 leads in a row
      if (codePoint < 0xDC00) {
        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
        leadSurrogate = codePoint
        continue
      }

      // valid surrogate pair
      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
    } else if (leadSurrogate) {
      // valid bmp char, but last char was a lead
      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
    }

    leadSurrogate = null

    // encode utf8
    if (codePoint < 0x80) {
      if ((units -= 1) < 0) break
      bytes.push(codePoint)
    } else if (codePoint < 0x800) {
      if ((units -= 2) < 0) break
      bytes.push(
        codePoint >> 0x6 | 0xC0,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x10000) {
      if ((units -= 3) < 0) break
      bytes.push(
        codePoint >> 0xC | 0xE0,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x110000) {
      if ((units -= 4) < 0) break
      bytes.push(
        codePoint >> 0x12 | 0xF0,
        codePoint >> 0xC & 0x3F | 0x80,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else {
      throw new Error('Invalid code point')
    }
  }

  return bytes
}

function asciiToBytes (str) {
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    // Node's code seems to be doing this and not & 0x7F..
    byteArray.push(str.charCodeAt(i) & 0xFF)
  }
  return byteArray
}

function utf16leToBytes (str, units) {
  var c, hi, lo
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    if ((units -= 2) < 0) break

    c = str.charCodeAt(i)
    hi = c >> 8
    lo = c % 256
    byteArray.push(lo)
    byteArray.push(hi)
  }

  return byteArray
}

function base64ToBytes (str) {
  return base64.toByteArray(base64clean(str))
}

function blitBuffer (src, dst, offset, length) {
  for (var i = 0; i < length; ++i) {
    if ((i + offset >= dst.length) || (i >= src.length)) break
    dst[i + offset] = src[i]
  }
  return i
}

// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
// the `instanceof` check but they should be treated as of that type.
// See: https://github.com/feross/buffer/issues/166
function isInstance (obj, type) {
  return obj instanceof type ||
    (obj != null && obj.constructor != null && obj.constructor.name != null &&
      obj.constructor.name === type.name)
}
function numberIsNaN (obj) {
  // For IE11 support
  return obj !== obj // eslint-disable-line no-self-compare
}

}).call(this)}).call(this,require("buffer").Buffer)

},{"base64-js":1,"buffer":3,"ieee754":6}],4:[function(require,module,exports){
(function (global){(function (){
/*! https://mths.be/cssescape v1.5.1 by @mathias | MIT license */
;(function(root, factory) {
	// https://github.com/umdjs/umd/blob/master/returnExports.js
	if (typeof exports == 'object') {
		// For Node.js.
		module.exports = factory(root);
	} else if (typeof define == 'function' && define.amd) {
		// For AMD. Register as an anonymous module.
		define([], factory.bind(root, root));
	} else {
		// For browser globals (not exposing the function separately).
		factory(root);
	}
}(typeof global != 'undefined' ? global : this, function(root) {

	if (root.CSS && root.CSS.escape) {
		return root.CSS.escape;
	}

	// https://drafts.csswg.org/cssom/#serialize-an-identifier
	var cssEscape = function(value) {
		if (arguments.length == 0) {
			throw new TypeError('`CSS.escape` requires an argument.');
		}
		var string = String(value);
		var length = string.length;
		var index = -1;
		var codeUnit;
		var result = '';
		var firstCodeUnit = string.charCodeAt(0);
		while (++index < length) {
			codeUnit = string.charCodeAt(index);
			// Note: there’s no need to special-case astral symbols, surrogate
			// pairs, or lone surrogates.

			// If the character is NULL (U+0000), then the REPLACEMENT CHARACTER
			// (U+FFFD).
			if (codeUnit == 0x0000) {
				result += '\uFFFD';
				continue;
			}

			if (
				// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
				// U+007F, […]
				(codeUnit >= 0x0001 && codeUnit <= 0x001F) || codeUnit == 0x007F ||
				// If the character is the first character and is in the range [0-9]
				// (U+0030 to U+0039), […]
				(index == 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
				// If the character is the second character and is in the range [0-9]
				// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
				(
					index == 1 &&
					codeUnit >= 0x0030 && codeUnit <= 0x0039 &&
					firstCodeUnit == 0x002D
				)
			) {
				// https://drafts.csswg.org/cssom/#escape-a-character-as-code-point
				result += '\\' + codeUnit.toString(16) + ' ';
				continue;
			}

			if (
				// If the character is the first character and is a `-` (U+002D), and
				// there is no second character, […]
				index == 0 &&
				length == 1 &&
				codeUnit == 0x002D
			) {
				result += '\\' + string.charAt(index);
				continue;
			}

			// If the character is not handled by one of the above rules and is
			// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
			// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
			// U+005A), or [a-z] (U+0061 to U+007A), […]
			if (
				codeUnit >= 0x0080 ||
				codeUnit == 0x002D ||
				codeUnit == 0x005F ||
				codeUnit >= 0x0030 && codeUnit <= 0x0039 ||
				codeUnit >= 0x0041 && codeUnit <= 0x005A ||
				codeUnit >= 0x0061 && codeUnit <= 0x007A
			) {
				// the character itself
				result += string.charAt(index);
				continue;
			}

			// Otherwise, the escaped character.
			// https://drafts.csswg.org/cssom/#escape-a-character
			result += '\\' + string.charAt(index);

		}
		return result;
	};

	if (!root.CSS) {
		root.CSS = {};
	}

	root.CSS.escape = cssEscape;
	return cssEscape;

}));

}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{}],5:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// 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.

'use strict';

var R = typeof Reflect === 'object' ? Reflect : null
var ReflectApply = R && typeof R.apply === 'function'
  ? R.apply
  : function ReflectApply(target, receiver, args) {
    return Function.prototype.apply.call(target, receiver, args);
  }

var ReflectOwnKeys
if (R && typeof R.ownKeys === 'function') {
  ReflectOwnKeys = R.ownKeys
} else if (Object.getOwnPropertySymbols) {
  ReflectOwnKeys = function ReflectOwnKeys(target) {
    return Object.getOwnPropertyNames(target)
      .concat(Object.getOwnPropertySymbols(target));
  };
} else {
  ReflectOwnKeys = function ReflectOwnKeys(target) {
    return Object.getOwnPropertyNames(target);
  };
}

function ProcessEmitWarning(warning) {
  if (console && console.warn) console.warn(warning);
}

var NumberIsNaN = Number.isNaN || function NumberIsNaN(value) {
  return value !== value;
}

function EventEmitter() {
  EventEmitter.init.call(this);
}
module.exports = EventEmitter;
module.exports.once = once;

// Backwards-compat with node 0.10.x
EventEmitter.EventEmitter = EventEmitter;

EventEmitter.prototype._events = undefined;
EventEmitter.prototype._eventsCount = 0;
EventEmitter.prototype._maxListeners = undefined;

// By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.
var defaultMaxListeners = 10;

function checkListener(listener) {
  if (typeof listener !== 'function') {
    throw new TypeError('The "listener" argument must be of type Function. Received type ' + typeof listener);
  }
}

Object.defineProperty(EventEmitter, 'defaultMaxListeners', {
  enumerable: true,
  get: function() {
    return defaultMaxListeners;
  },
  set: function(arg) {
    if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) {
      throw new RangeError('The value of "defaultMaxListeners" is out of range. It must be a non-negative number. Received ' + arg + '.');
    }
    defaultMaxListeners = arg;
  }
});

EventEmitter.init = function() {

  if (this._events === undefined ||
      this._events === Object.getPrototypeOf(this)._events) {
    this._events = Object.create(null);
    this._eventsCount = 0;
  }

  this._maxListeners = this._maxListeners || undefined;
};

// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
EventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {
  if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) {
    throw new RangeError('The value of "n" is out of range. It must be a non-negative number. Received ' + n + '.');
  }
  this._maxListeners = n;
  return this;
};

function _getMaxListeners(that) {
  if (that._maxListeners === undefined)
    return EventEmitter.defaultMaxListeners;
  return that._maxListeners;
}

EventEmitter.prototype.getMaxListeners = function getMaxListeners() {
  return _getMaxListeners(this);
};

EventEmitter.prototype.emit = function emit(type) {
  var args = [];
  for (var i = 1; i < arguments.length; i++) args.push(arguments[i]);
  var doError = (type === 'error');

  var events = this._events;
  if (events !== undefined)
    doError = (doError && events.error === undefined);
  else if (!doError)
    return false;

  // If there is no 'error' event listener then throw.
  if (doError) {
    var er;
    if (args.length > 0)
      er = args[0];
    if (er instanceof Error) {
      // Note: The comments on the `throw` lines are intentional, they show
      // up in Node's output if this results in an unhandled exception.
      throw er; // Unhandled 'error' event
    }
    // At least give some kind of context to the user
    var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : ''));
    err.context = er;
    throw err; // Unhandled 'error' event
  }

  var handler = events[type];

  if (handler === undefined)
    return false;

  if (typeof handler === 'function') {
    ReflectApply(handler, this, args);
  } else {
    var len = handler.length;
    var listeners = arrayClone(handler, len);
    for (var i = 0; i < len; ++i)
      ReflectApply(listeners[i], this, args);
  }

  return true;
};

function _addListener(target, type, listener, prepend) {
  var m;
  var events;
  var existing;

  checkListener(listener);

  events = target._events;
  if (events === undefined) {
    events = target._events = Object.create(null);
    target._eventsCount = 0;
  } else {
    // To avoid recursion in the case that type === "newListener"! Before
    // adding it to the listeners, first emit "newListener".
    if (events.newListener !== undefined) {
      target.emit('newListener', type,
                  listener.listener ? listener.listener : listener);

      // Re-assign `events` because a newListener handler could have caused the
      // this._events to be assigned to a new object
      events = target._events;
    }
    existing = events[type];
  }

  if (existing === undefined) {
    // Optimize the case of one listener. Don't need the extra array object.
    existing = events[type] = listener;
    ++target._eventsCount;
  } else {
    if (typeof existing === 'function') {
      // Adding the second element, need to change to array.
      existing = events[type] =
        prepend ? [listener, existing] : [existing, listener];
      // If we've already got an array, just append.
    } else if (prepend) {
      existing.unshift(listener);
    } else {
      existing.push(listener);
    }

    // Check for listener leak
    m = _getMaxListeners(target);
    if (m > 0 && existing.length > m && !existing.warned) {
      existing.warned = true;
      // No error code for this since it is a Warning
      // eslint-disable-next-line no-restricted-syntax
      var w = new Error('Possible EventEmitter memory leak detected. ' +
                          existing.length + ' ' + String(type) + ' listeners ' +
                          'added. Use emitter.setMaxListeners() to ' +
                          'increase limit');
      w.name = 'MaxListenersExceededWarning';
      w.emitter = target;
      w.type = type;
      w.count = existing.length;
      ProcessEmitWarning(w);
    }
  }

  return target;
}

EventEmitter.prototype.addListener = function addListener(type, listener) {
  return _addListener(this, type, listener, false);
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.prependListener =
    function prependListener(type, listener) {
      return _addListener(this, type, listener, true);
    };

function onceWrapper() {
  if (!this.fired) {
    this.target.removeListener(this.type, this.wrapFn);
    this.fired = true;
    if (arguments.length === 0)
      return this.listener.call(this.target);
    return this.listener.apply(this.target, arguments);
  }
}

function _onceWrap(target, type, listener) {
  var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };
  var wrapped = onceWrapper.bind(state);
  wrapped.listener = listener;
  state.wrapFn = wrapped;
  return wrapped;
}

EventEmitter.prototype.once = function once(type, listener) {
  checkListener(listener);
  this.on(type, _onceWrap(this, type, listener));
  return this;
};

EventEmitter.prototype.prependOnceListener =
    function prependOnceListener(type, listener) {
      checkListener(listener);
      this.prependListener(type, _onceWrap(this, type, listener));
      return this;
    };

// Emits a 'removeListener' event if and only if the listener was removed.
EventEmitter.prototype.removeListener =
    function removeListener(type, listener) {
      var list, events, position, i, originalListener;

      checkListener(listener);

      events = this._events;
      if (events === undefined)
        return this;

      list = events[type];
      if (list === undefined)
        return this;

      if (list === listener || list.listener === listener) {
        if (--this._eventsCount === 0)
          this._events = Object.create(null);
        else {
          delete events[type];
          if (events.removeListener)
            this.emit('removeListener', type, list.listener || listener);
        }
      } else if (typeof list !== 'function') {
        position = -1;

        for (i = list.length - 1; i >= 0; i--) {
          if (list[i] === listener || list[i].listener === listener) {
            originalListener = list[i].listener;
            position = i;
            break;
          }
        }

        if (position < 0)
          return this;

        if (position === 0)
          list.shift();
        else {
          spliceOne(list, position);
        }

        if (list.length === 1)
          events[type] = list[0];

        if (events.removeListener !== undefined)
          this.emit('removeListener', type, originalListener || listener);
      }

      return this;
    };

EventEmitter.prototype.off = EventEmitter.prototype.removeListener;

EventEmitter.prototype.removeAllListeners =
    function removeAllListeners(type) {
      var listeners, events, i;

      events = this._events;
      if (events === undefined)
        return this;

      // not listening for removeListener, no need to emit
      if (events.removeListener === undefined) {
        if (arguments.length === 0) {
          this._events = Object.create(null);
          this._eventsCount = 0;
        } else if (events[type] !== undefined) {
          if (--this._eventsCount === 0)
            this._events = Object.create(null);
          else
            delete events[type];
        }
        return this;
      }

      // emit removeListener for all listeners on all events
      if (arguments.length === 0) {
        var keys = Object.keys(events);
        var key;
        for (i = 0; i < keys.length; ++i) {
          key = keys[i];
          if (key === 'removeListener') continue;
          this.removeAllListeners(key);
        }
        this.removeAllListeners('removeListener');
        this._events = Object.create(null);
        this._eventsCount = 0;
        return this;
      }

      listeners = events[type];

      if (typeof listeners === 'function') {
        this.removeListener(type, listeners);
      } else if (listeners !== undefined) {
        // LIFO order
        for (i = listeners.length - 1; i >= 0; i--) {
          this.removeListener(type, listeners[i]);
        }
      }

      return this;
    };

function _listeners(target, type, unwrap) {
  var events = target._events;

  if (events === undefined)
    return [];

  var evlistener = events[type];
  if (evlistener === undefined)
    return [];

  if (typeof evlistener === 'function')
    return unwrap ? [evlistener.listener || evlistener] : [evlistener];

  return unwrap ?
    unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);
}

EventEmitter.prototype.listeners = function listeners(type) {
  return _listeners(this, type, true);
};

EventEmitter.prototype.rawListeners = function rawListeners(type) {
  return _listeners(this, type, false);
};

EventEmitter.listenerCount = function(emitter, type) {
  if (typeof emitter.listenerCount === 'function') {
    return emitter.listenerCount(type);
  } else {
    return listenerCount.call(emitter, type);
  }
};

EventEmitter.prototype.listenerCount = listenerCount;
function listenerCount(type) {
  var events = this._events;

  if (events !== undefined) {
    var evlistener = events[type];

    if (typeof evlistener === 'function') {
      return 1;
    } else if (evlistener !== undefined) {
      return evlistener.length;
    }
  }

  return 0;
}

EventEmitter.prototype.eventNames = function eventNames() {
  return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : [];
};

function arrayClone(arr, n) {
  var copy = new Array(n);
  for (var i = 0; i < n; ++i)
    copy[i] = arr[i];
  return copy;
}

function spliceOne(list, index) {
  for (; index + 1 < list.length; index++)
    list[index] = list[index + 1];
  list.pop();
}

function unwrapListeners(arr) {
  var ret = new Array(arr.length);
  for (var i = 0; i < ret.length; ++i) {
    ret[i] = arr[i].listener || arr[i];
  }
  return ret;
}

function once(emitter, name) {
  return new Promise(function (resolve, reject) {
    function eventListener() {
      if (errorListener !== undefined) {
        emitter.removeListener('error', errorListener);
      }
      resolve([].slice.call(arguments));
    };
    var errorListener;

    // Adding an error listener is not optional because
    // if an error is thrown on an event emitter we cannot
    // guarantee that the actual event we are waiting will
    // be fired. The result could be a silent way to create
    // memory or file descriptor leaks, which is something
    // we should avoid.
    if (name !== 'error') {
      errorListener = function errorListener(err) {
        emitter.removeListener(name, eventListener);
        reject(err);
      };

      emitter.once('error', errorListener);
    }

    emitter.once(name, eventListener);
  });
}

},{}],6:[function(require,module,exports){
/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
  var e, m
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var nBits = -7
  var i = isLE ? (nBytes - 1) : 0
  var d = isLE ? -1 : 1
  var s = buffer[offset + i]

  i += d

  e = s & ((1 << (-nBits)) - 1)
  s >>= (-nBits)
  nBits += eLen
  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  m = e & ((1 << (-nBits)) - 1)
  e >>= (-nBits)
  nBits += mLen
  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  if (e === 0) {
    e = 1 - eBias
  } else if (e === eMax) {
    return m ? NaN : ((s ? -1 : 1) * Infinity)
  } else {
    m = m + Math.pow(2, mLen)
    e = e - eBias
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}

exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
  var i = isLE ? 0 : (nBytes - 1)
  var d = isLE ? 1 : -1
  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0

  value = Math.abs(value)

  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0
    e = eMax
  } else {
    e = Math.floor(Math.log(value) / Math.LN2)
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--
      c *= 2
    }
    if (e + eBias >= 1) {
      value += rt / c
    } else {
      value += rt * Math.pow(2, 1 - eBias)
    }
    if (value * c >= 2) {
      e++
      c /= 2
    }

    if (e + eBias >= eMax) {
      m = 0
      e = eMax
    } else if (e + eBias >= 1) {
      m = ((value * c) - 1) * Math.pow(2, mLen)
      e = e + eBias
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
      e = 0
    }
  }

  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

  e = (e << mLen) | m
  eLen += mLen
  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

  buffer[offset + i - d] |= s * 128
}

},{}],7:[function(require,module,exports){
(function (Buffer){(function (){
!function(factory) {
    var global = this;
    module.exports = factory(global);
}(function(global) {
    "use strict";
    function is(obj, Ctor) {
        return "object" != typeof obj || null === obj ? !1 : obj.constructor === Ctor || Object.prototype.toString.call(obj) === "[object " + Ctor.name + "]";
    }
    function arrayFrom(arrayLike, forceCopy) {
        return !forceCopy && is(arrayLike, Array) ? arrayLike : Array.prototype.slice.call(arrayLike);
    }
    function defined(value, defaultValue) {
        return void 0 !== value ? value : defaultValue;
    }
    function jDataView(buffer, byteOffset, byteLength, littleEndian) {
        if (jDataView.is(buffer)) {
            var result = buffer.slice(byteOffset, byteOffset + byteLength);
            return result._littleEndian = defined(littleEndian, result._littleEndian), result;
        }
        if (!jDataView.is(this)) return new jDataView(buffer, byteOffset, byteLength, littleEndian);
        if (this.buffer = buffer = jDataView.wrapBuffer(buffer), this._isArrayBuffer = compatibility.ArrayBuffer && is(buffer, ArrayBuffer), 
        this._isPixelData = !1, this._isDataView = compatibility.DataView && this._isArrayBuffer, 
        this._isNodeBuffer = !0 && compatibility.NodeBuffer && is(buffer, Buffer), !this._isNodeBuffer && !this._isArrayBuffer && !is(buffer, Array)) throw new TypeError("jDataView buffer has an incompatible type");
        this._littleEndian = !!littleEndian;
        var bufferLength = "byteLength" in buffer ? buffer.byteLength : buffer.length;
        this.byteOffset = byteOffset = defined(byteOffset, 0), this.byteLength = byteLength = defined(byteLength, bufferLength - byteOffset), 
        this._offset = this._bitOffset = 0, this._isDataView ? this._view = new DataView(buffer, byteOffset, byteLength) : this._checkBounds(byteOffset, byteLength, bufferLength), 
        this._engineAction = this._isDataView ? this._dataViewAction : this._isNodeBuffer ? this._nodeBufferAction : this._isArrayBuffer ? this._arrayBufferAction : this._arrayAction;
    }
    function getCharCodes(string) {
        if (compatibility.NodeBuffer) return new Buffer(string, "binary");
        for (var Type = compatibility.ArrayBuffer ? Uint8Array : Array, codes = new Type(string.length), i = 0, length = string.length; length > i; i++) codes[i] = 255 & string.charCodeAt(i);
        return codes;
    }
    function pow2(n) {
        return n >= 0 && 31 > n ? 1 << n : pow2[n] || (pow2[n] = Math.pow(2, n));
    }
    function Uint64(lo, hi) {
        this.lo = lo, this.hi = hi;
    }
    function Int64() {
        Uint64.apply(this, arguments);
    }
    var compatibility = {
        NodeBuffer: !0 && "Buffer" in global,
        DataView: "DataView" in global,
        ArrayBuffer: "ArrayBuffer" in global,
        PixelData: !1
    }, TextEncoder = global.TextEncoder, TextDecoder = global.TextDecoder;
    compatibility.NodeBuffer && !function(buffer) {
        try {
            buffer.writeFloatLE(1/0, 0);
        } catch (e) {
            compatibility.NodeBuffer = !1;
        }
    }(new Buffer(4));
    var dataTypes = {
        Int8: 1,
        Int16: 2,
        Int32: 4,
        Uint8: 1,
        Uint16: 2,
        Uint32: 4,
        Float32: 4,
        Float64: 8
    };
    jDataView.wrapBuffer = function(buffer) {
        switch (typeof buffer) {
          case "number":
            if (compatibility.NodeBuffer) buffer = new Buffer(buffer), buffer.fill(0); else if (compatibility.ArrayBuffer) buffer = new Uint8Array(buffer).buffer; else {
                buffer = new Array(buffer);
                for (var i = 0; i < buffer.length; i++) buffer[i] = 0;
            }
            return buffer;

          case "string":
            buffer = getCharCodes(buffer);

          default:
            return "length" in buffer && !(compatibility.NodeBuffer && is(buffer, Buffer) || compatibility.ArrayBuffer && is(buffer, ArrayBuffer)) && (compatibility.NodeBuffer ? buffer = new Buffer(buffer) : compatibility.ArrayBuffer ? is(buffer, ArrayBuffer) || (buffer = new Uint8Array(buffer).buffer, 
            is(buffer, ArrayBuffer) || (buffer = new Uint8Array(arrayFrom(buffer, !0)).buffer)) : buffer = arrayFrom(buffer)), 
            buffer;
        }
    }, jDataView.is = function(view) {
        return view && view.jDataView;
    }, jDataView.from = function() {
        return new jDataView(arguments);
    }, jDataView.Uint64 = Uint64, Uint64.prototype = {
        valueOf: function() {
            return this.lo + pow2(32) * this.hi;
        },
        toString: function() {
            return Number.prototype.toString.apply(this.valueOf(), arguments);
        }
    }, Uint64.fromNumber = function(number) {
        var hi = Math.floor(number / pow2(32)), lo = number - hi * pow2(32);
        return new Uint64(lo, hi);
    }, jDataView.Int64 = Int64, Int64.prototype = "create" in Object ? Object.create(Uint64.prototype) : new Uint64(), 
    Int64.prototype.valueOf = function() {
        return this.hi < pow2(31) ? Uint64.prototype.valueOf.apply(this, arguments) : -(pow2(32) - this.lo + pow2(32) * (pow2(32) - 1 - this.hi));
    }, Int64.fromNumber = function(number) {
        var lo, hi;
        if (number >= 0) {
            var unsigned = Uint64.fromNumber(number);
            lo = unsigned.lo, hi = unsigned.hi;
        } else hi = Math.floor(number / pow2(32)), lo = number - hi * pow2(32), hi += pow2(32);
        return new Int64(lo, hi);
    };
    var proto = jDataView.prototype = {
        compatibility: compatibility,
        jDataView: !0,
        _checkBounds: function(byteOffset, byteLength, maxLength) {
            if ("number" != typeof byteOffset) throw new TypeError("Offset is not a number.");
            if ("number" != typeof byteLength) throw new TypeError("Size is not a number.");
            if (0 > byteLength) throw new RangeError("Length is negative.");
            if (0 > byteOffset || byteOffset + byteLength > defined(maxLength, this.byteLength)) throw new RangeError("Offsets are out of bounds.");
        },
        _action: function(type, isReadAction, byteOffset, littleEndian, value) {
            return this._engineAction(type, isReadAction, defined(byteOffset, this._offset), defined(littleEndian, this._littleEndian), value);
        },
        _dataViewAction: function(type, isReadAction, byteOffset, littleEndian, value) {
            return this._offset = byteOffset + dataTypes[type], isReadAction ? this._view["get" + type](byteOffset, littleEndian) : this._view["set" + type](byteOffset, value, littleEndian);
        },
        _arrayBufferAction: function(type, isReadAction, byteOffset, littleEndian, value) {
            var typedArray, size = dataTypes[type], TypedArray = global[type + "Array"];
            if (littleEndian = defined(littleEndian, this._littleEndian), 1 === size || (this.byteOffset + byteOffset) % size === 0 && littleEndian) return typedArray = new TypedArray(this.buffer, this.byteOffset + byteOffset, 1), 
            this._offset = byteOffset + size, isReadAction ? typedArray[0] : typedArray[0] = value;
            var bytes = new Uint8Array(isReadAction ? this.getBytes(size, byteOffset, littleEndian, !0) : size);
            return typedArray = new TypedArray(bytes.buffer, 0, 1), isReadAction ? typedArray[0] : (typedArray[0] = value, 
            void this._setBytes(byteOffset, bytes, littleEndian));
        },
        _arrayAction: function(type, isReadAction, byteOffset, littleEndian, value) {
            return isReadAction ? this["_get" + type](byteOffset, littleEndian) : this["_set" + type](byteOffset, value, littleEndian);
        },
        _getBytes: function(length, byteOffset, littleEndian) {
            littleEndian = defined(littleEndian, this._littleEndian), byteOffset = defined(byteOffset, this._offset), 
            length = defined(length, this.byteLength - byteOffset), this._checkBounds(byteOffset, length), 
            byteOffset += this.byteOffset, this._offset = byteOffset - this.byteOffset + length;
            var result = this._isArrayBuffer ? new Uint8Array(this.buffer, byteOffset, length) : (this.buffer.slice || Array.prototype.slice).call(this.buffer, byteOffset, byteOffset + length);
            return littleEndian || 1 >= length ? result : arrayFrom(result).reverse();
        },
        getBytes: function(length, byteOffset, littleEndian, toArray) {
            var result = this._getBytes(length, byteOffset, defined(littleEndian, !0));
            return toArray ? arrayFrom(result) : result;
        },
        _setBytes: function(byteOffset, bytes, littleEndian) {
            var length = bytes.length;
            if (0 !== length) {
                if (littleEndian = defined(littleEndian, this._littleEndian), byteOffset = defined(byteOffset, this._offset), 
                this._checkBounds(byteOffset, length), !littleEndian && length > 1 && (bytes = arrayFrom(bytes, !0).reverse()), 
                byteOffset += this.byteOffset, this._isArrayBuffer) new Uint8Array(this.buffer, byteOffset, length).set(bytes); else if (this._isNodeBuffer) new Buffer(bytes).copy(this.buffer, byteOffset); else for (var i = 0; length > i; i++) this.buffer[byteOffset + i] = bytes[i];
                this._offset = byteOffset - this.byteOffset + length;
            }
        },
        setBytes: function(byteOffset, bytes, littleEndian) {
            this._setBytes(byteOffset, bytes, defined(littleEndian, !0));
        },
        getString: function(byteLength, byteOffset, encoding) {
            if (this._isNodeBuffer) return byteOffset = defined(byteOffset, this._offset), byteLength = defined(byteLength, this.byteLength - byteOffset), 
            this._checkBounds(byteOffset, byteLength), this._offset = byteOffset + byteLength, 
            this.buffer.toString(encoding || "binary", this.byteOffset + byteOffset, this.byteOffset + this._offset);
            var bytes = this._getBytes(byteLength, byteOffset, !0);
            if (encoding = "utf8" === encoding ? "utf-8" : encoding || "binary", TextDecoder && "binary" !== encoding) return new TextDecoder(encoding).decode(this._isArrayBuffer ? bytes : new Uint8Array(bytes));
            var string = "";
            byteLength = bytes.length;
            for (var i = 0; byteLength > i; i++) string += String.fromCharCode(bytes[i]);
            return "utf-8" === encoding && (string = decodeURIComponent(escape(string))), string;
        },
        setString: function(byteOffset, subString, encoding) {
            if (this._isNodeBuffer) return byteOffset = defined(byteOffset, this._offset), this._checkBounds(byteOffset, subString.length), 
            void (this._offset = byteOffset + this.buffer.write(subString, this.byteOffset + byteOffset, encoding || "binary"));
            encoding = "utf8" === encoding ? "utf-8" : encoding || "binary";
            var bytes;
            TextEncoder && "binary" !== encoding ? bytes = new TextEncoder(encoding).encode(subString) : ("utf-8" === encoding && (subString = unescape(encodeURIComponent(subString))), 
            bytes = getCharCodes(subString)), this._setBytes(byteOffset, bytes, !0);
        },
        getChar: function(byteOffset) {
            return this.getString(1, byteOffset);
        },
        setChar: function(byteOffset, character) {
            this.setString(byteOffset, character);
        },
        tell: function() {
            return this._offset;
        },
        seek: function(byteOffset) {
            return this._checkBounds(byteOffset, 0), this._offset = byteOffset;
        },
        skip: function(byteLength) {
            return this.seek(this._offset + byteLength);
        },
        slice: function(start, end, forceCopy) {
            function normalizeOffset(offset, byteLength) {
                return 0 > offset ? offset + byteLength : offset;
            }
            return start = normalizeOffset(start, this.byteLength), end = normalizeOffset(defined(end, this.byteLength), this.byteLength), 
            forceCopy ? new jDataView(this.getBytes(end - start, start, !0, !0), void 0, void 0, this._littleEndian) : new jDataView(this.buffer, this.byteOffset + start, end - start, this._littleEndian);
        },
        alignBy: function(byteCount) {
            return this._bitOffset = 0, 1 !== defined(byteCount, 1) ? this.skip(byteCount - (this._offset % byteCount || byteCount)) : this._offset;
        },
        _getFloat64: function(byteOffset, littleEndian) {
            var b = this._getBytes(8, byteOffset, littleEndian), sign = 1 - 2 * (b[7] >> 7), exponent = ((b[7] << 1 & 255) << 3 | b[6] >> 4) - 1023, mantissa = (15 & b[6]) * pow2(48) + b[5] * pow2(40) + b[4] * pow2(32) + b[3] * pow2(24) + b[2] * pow2(16) + b[1] * pow2(8) + b[0];
            return 1024 === exponent ? 0 !== mantissa ? 0/0 : 1/0 * sign : -1023 === exponent ? sign * mantissa * pow2(-1074) : sign * (1 + mantissa * pow2(-52)) * pow2(exponent);
        },
        _getFloat32: function(byteOffset, littleEndian) {
            var b = this._getBytes(4, byteOffset, littleEndian), sign = 1 - 2 * (b[3] >> 7), exponent = (b[3] << 1 & 255 | b[2] >> 7) - 127, mantissa = (127 & b[2]) << 16 | b[1] << 8 | b[0];
            return 128 === exponent ? 0 !== mantissa ? 0/0 : 1/0 * sign : -127 === exponent ? sign * mantissa * pow2(-149) : sign * (1 + mantissa * pow2(-23)) * pow2(exponent);
        },
        _get64: function(Type, byteOffset, littleEndian) {
            littleEndian = defined(littleEndian, this._littleEndian), byteOffset = defined(byteOffset, this._offset);
            for (var parts = littleEndian ? [ 0, 4 ] : [ 4, 0 ], i = 0; 2 > i; i++) parts[i] = this.getUint32(byteOffset + parts[i], littleEndian);
            return this._offset = byteOffset + 8, new Type(parts[0], parts[1]);
        },
        getInt64: function(byteOffset, littleEndian) {
            return this._get64(Int64, byteOffset, littleEndian);
        },
        getUint64: function(byteOffset, littleEndian) {
            return this._get64(Uint64, byteOffset, littleEndian);
        },
        _getInt32: function(byteOffset, littleEndian) {
            var b = this._getBytes(4, byteOffset, littleEndian);
            return b[3] << 24 | b[2] << 16 | b[1] << 8 | b[0];
        },
        _getUint32: function(byteOffset, littleEndian) {
            return this._getInt32(byteOffset, littleEndian) >>> 0;
        },
        _getInt16: function(byteOffset, littleEndian) {
            return this._getUint16(byteOffset, littleEndian) << 16 >> 16;
        },
        _getUint16: function(byteOffset, littleEndian) {
            var b = this._getBytes(2, byteOffset, littleEndian);
            return b[1] << 8 | b[0];
        },
        _getInt8: function(byteOffset) {
            return this._getUint8(byteOffset) << 24 >> 24;
        },
        _getUint8: function(byteOffset) {
            return this._getBytes(1, byteOffset)[0];
        },
        _getBitRangeData: function(bitLength, byteOffset) {
            var startBit = (defined(byteOffset, this._offset) << 3) + this._bitOffset, endBit = startBit + bitLength, start = startBit >>> 3, end = endBit + 7 >>> 3, b = this._getBytes(end - start, start, !0), wideValue = 0;
            (this._bitOffset = 7 & endBit) && (this._bitOffset -= 8);
            for (var i = 0, length = b.length; length > i; i++) wideValue = wideValue << 8 | b[i];
            return {
                start: start,
                bytes: b,
                wideValue: wideValue
            };
        },
        getSigned: function(bitLength, byteOffset) {
            var shift = 32 - bitLength;
            return this.getUnsigned(bitLength, byteOffset) << shift >> shift;
        },
        getUnsigned: function(bitLength, byteOffset) {
            var value = this._getBitRangeData(bitLength, byteOffset).wideValue >>> -this._bitOffset;
            return 32 > bitLength ? value & ~(-1 << bitLength) : value;
        },
        _setBinaryFloat: function(byteOffset, value, mantSize, expSize, littleEndian) {
            var exponent, mantissa, signBit = 0 > value ? 1 : 0, eMax = ~(-1 << expSize - 1), eMin = 1 - eMax;
            0 > value && (value = -value), 0 === value ? (exponent = 0, mantissa = 0) : isNaN(value) ? (exponent = 2 * eMax + 1, 
            mantissa = 1) : 1/0 === value ? (exponent = 2 * eMax + 1, mantissa = 0) : (exponent = Math.floor(Math.log(value) / Math.LN2), 
            exponent >= eMin && eMax >= exponent ? (mantissa = Math.floor((value * pow2(-exponent) - 1) * pow2(mantSize)), 
            exponent += eMax) : (mantissa = Math.floor(value / pow2(eMin - mantSize)), exponent = 0));
            for (var b = []; mantSize >= 8; ) b.push(mantissa % 256), mantissa = Math.floor(mantissa / 256), 
            mantSize -= 8;
            for (exponent = exponent << mantSize | mantissa, expSize += mantSize; expSize >= 8; ) b.push(255 & exponent), 
            exponent >>>= 8, expSize -= 8;
            b.push(signBit << expSize | exponent), this._setBytes(byteOffset, b, littleEndian);
        },
        _setFloat32: function(byteOffset, value, littleEndian) {
            this._setBinaryFloat(byteOffset, value, 23, 8, littleEndian);
        },
        _setFloat64: function(byteOffset, value, littleEndian) {
            this._setBinaryFloat(byteOffset, value, 52, 11, littleEndian);
        },
        _set64: function(Type, byteOffset, value, littleEndian) {
            "object" != typeof value && (value = Type.fromNumber(value)), littleEndian = defined(littleEndian, this._littleEndian), 
            byteOffset = defined(byteOffset, this._offset);
            var parts = littleEndian ? {
                lo: 0,
                hi: 4
            } : {
                lo: 4,
                hi: 0
            };
            for (var partName in parts) this.setUint32(byteOffset + parts[partName], value[partName], littleEndian);
            this._offset = byteOffset + 8;
        },
        setInt64: function(byteOffset, value, littleEndian) {
            this._set64(Int64, byteOffset, value, littleEndian);
        },
        setUint64: function(byteOffset, value, littleEndian) {
            this._set64(Uint64, byteOffset, value, littleEndian);
        },
        _setUint32: function(byteOffset, value, littleEndian) {
            this._setBytes(byteOffset, [ 255 & value, value >>> 8 & 255, value >>> 16 & 255, value >>> 24 ], littleEndian);
        },
        _setUint16: function(byteOffset, value, littleEndian) {
            this._setBytes(byteOffset, [ 255 & value, value >>> 8 & 255 ], littleEndian);
        },
        _setUint8: function(byteOffset, value) {
            this._setBytes(byteOffset, [ 255 & value ]);
        },
        setUnsigned: function(byteOffset, value, bitLength) {
            var data = this._getBitRangeData(bitLength, byteOffset), wideValue = data.wideValue, b = data.bytes;
            wideValue &= ~(~(-1 << bitLength) << -this._bitOffset), wideValue |= (32 > bitLength ? value & ~(-1 << bitLength) : value) << -this._bitOffset;
            for (var i = b.length - 1; i >= 0; i--) b[i] = 255 & wideValue, wideValue >>>= 8;
            this._setBytes(data.start, b, !0);
        }
    }, nodeNaming = {
        Int8: "Int8",
        Int16: "Int16",
        Int32: "Int32",
        Uint8: "UInt8",
        Uint16: "UInt16",
        Uint32: "UInt32",
        Float32: "Float",
        Float64: "Double"
    };
    proto._nodeBufferAction = function(type, isReadAction, byteOffset, littleEndian, value) {
        this._offset = byteOffset + dataTypes[type];
        var nodeName = nodeNaming[type] + ("Int8" === type || "Uint8" === type ? "" : littleEndian ? "LE" : "BE");
        return byteOffset += this.byteOffset, isReadAction ? this.buffer["read" + nodeName](byteOffset) : this.buffer["write" + nodeName](value, byteOffset);
    };
    for (var type in dataTypes) !function(type) {
        proto["get" + type] = function(byteOffset, littleEndian) {
            return this._action(type, !0, byteOffset, littleEndian);
        }, proto["set" + type] = function(byteOffset, value, littleEndian) {
            this._action(type, !1, byteOffset, littleEndian, value);
        };
    }(type);
    proto._setInt32 = proto._setUint32, proto._setInt16 = proto._setUint16, proto._setInt8 = proto._setUint8, 
    proto.setSigned = proto.setUnsigned;
    for (var method in proto) "set" === method.slice(0, 3) && !function(type) {
        proto["write" + type] = function() {
            Array.prototype.unshift.call(arguments, void 0), this["set" + type].apply(this, arguments);
        };
    }(method.slice(3));
    return jDataView;
});
}).call(this)}).call(this,require("buffer").Buffer)

},{"buffer":3}],8:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};

// cached from whatever global is present so that test runners that stub it
// don't break things.  But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals.  It's inside a
// function because try/catches deoptimize in certain engines.

var cachedSetTimeout;
var cachedClearTimeout;

function defaultSetTimout() {
    throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
    throw new Error('clearTimeout has not been defined');
}
(function () {
    try {
        if (typeof setTimeout === 'function') {
            cachedSetTimeout = setTimeout;
        } else {
            cachedSetTimeout = defaultSetTimout;
        }
    } catch (e) {
        cachedSetTimeout = defaultSetTimout;
    }
    try {
        if (typeof clearTimeout === 'function') {
            cachedClearTimeout = clearTimeout;
        } else {
            cachedClearTimeout = defaultClearTimeout;
        }
    } catch (e) {
        cachedClearTimeout = defaultClearTimeout;
    }
} ())
function runTimeout(fun) {
    if (cachedSetTimeout === setTimeout) {
        //normal enviroments in sane situations
        return setTimeout(fun, 0);
    }
    // if setTimeout wasn't available but was latter defined
    if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
        cachedSetTimeout = setTimeout;
        return setTimeout(fun, 0);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedSetTimeout(fun, 0);
    } catch(e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
            return cachedSetTimeout.call(null, fun, 0);
        } catch(e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
            return cachedSetTimeout.call(this, fun, 0);
        }
    }


}
function runClearTimeout(marker) {
    if (cachedClearTimeout === clearTimeout) {
        //normal enviroments in sane situations
        return clearTimeout(marker);
    }
    // if clearTimeout wasn't available but was latter defined
    if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
        cachedClearTimeout = clearTimeout;
        return clearTimeout(marker);
    }
    try {
        // when when somebody has screwed with setTimeout but no I.E. maddness
        return cachedClearTimeout(marker);
    } catch (e){
        try {
            // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
            return cachedClearTimeout.call(null, marker);
        } catch (e){
            // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
            // Some versions of I.E. have different rules for clearTimeout vs setTimeout
            return cachedClearTimeout.call(this, marker);
        }
    }



}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
    if (!draining || !currentQueue) {
        return;
    }
    draining = false;
    if (currentQueue.length) {
        queue = currentQueue.concat(queue);
    } else {
        queueIndex = -1;
    }
    if (queue.length) {
        drainQueue();
    }
}

function drainQueue() {
    if (draining) {
        return;
    }
    var timeout = runTimeout(cleanUpNextTick);
    draining = true;

    var len = queue.length;
    while(len) {
        currentQueue = queue;
        queue = [];
        while (++queueIndex < len) {
            if (currentQueue) {
                currentQueue[queueIndex].run();
            }
        }
        queueIndex = -1;
        len = queue.length;
    }
    currentQueue = null;
    draining = false;
    runClearTimeout(timeout);
}

process.nextTick = function (fun) {
    var args = new Array(arguments.length - 1);
    if (arguments.length > 1) {
        for (var i = 1; i < arguments.length; i++) {
            args[i - 1] = arguments[i];
        }
    }
    queue.push(new Item(fun, args));
    if (queue.length === 1 && !draining) {
        runTimeout(drainQueue);
    }
};

// v8 likes predictible objects
function Item(fun, array) {
    this.fun = fun;
    this.array = array;
}
Item.prototype.run = function () {
    this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;

process.listeners = function (name) { return [] }

process.binding = function (name) {
    throw new Error('process.binding is not supported');
};

process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };

},{}],9:[function(require,module,exports){
/* eslint-disable node/no-deprecated-api */
var buffer = require('buffer')
var Buffer = buffer.Buffer

// alternative to using Object.keys for old browsers
function copyProps (src, dst) {
  for (var key in src) {
    dst[key] = src[key]
  }
}
if (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {
  module.exports = buffer
} else {
  // Copy properties from require('buffer')
  copyProps(buffer, exports)
  exports.Buffer = SafeBuffer
}

function SafeBuffer (arg, encodingOrOffset, length) {
  return Buffer(arg, encodingOrOffset, length)
}

// Copy static methods from Buffer
copyProps(Buffer, SafeBuffer)

SafeBuffer.from = function (arg, encodingOrOffset, length) {
  if (typeof arg === 'number') {
    throw new TypeError('Argument must not be a number')
  }
  return Buffer(arg, encodingOrOffset, length)
}

SafeBuffer.alloc = function (size, fill, encoding) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  var buf = Buffer(size)
  if (fill !== undefined) {
    if (typeof encoding === 'string') {
      buf.fill(fill, encoding)
    } else {
      buf.fill(fill)
    }
  } else {
    buf.fill(0)
  }
  return buf
}

SafeBuffer.allocUnsafe = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return Buffer(size)
}

SafeBuffer.allocUnsafeSlow = function (size) {
  if (typeof size !== 'number') {
    throw new TypeError('Argument must be a number')
  }
  return buffer.SlowBuffer(size)
}

},{"buffer":3}],10:[function(require,module,exports){
(function (Buffer){(function (){
;(function (sax) { // wrapper for non-node envs
  sax.parser = function (strict, opt) { return new SAXParser(strict, opt) }
  sax.SAXParser = SAXParser
  sax.SAXStream = SAXStream
  sax.createStream = createStream

  // When we pass the MAX_BUFFER_LENGTH position, start checking for buffer overruns.
  // When we check, schedule the next check for MAX_BUFFER_LENGTH - (max(buffer lengths)),
  // since that's the earliest that a buffer overrun could occur.  This way, checks are
  // as rare as required, but as often as necessary to ensure never crossing this bound.
  // Furthermore, buffers are only tested at most once per write(), so passing a very
  // large string into write() might have undesirable effects, but this is manageable by
  // the caller, so it is assumed to be safe.  Thus, a call to write() may, in the extreme
  // edge case, result in creating at most one complete copy of the string passed in.
  // Set to Infinity to have unlimited buffers.
  sax.MAX_BUFFER_LENGTH = 64 * 1024

  var buffers = [
    'comment', 'sgmlDecl', 'textNode', 'tagName', 'doctype',
    'procInstName', 'procInstBody', 'entity', 'attribName',
    'attribValue', 'cdata', 'script'
  ]

  sax.EVENTS = [
    'text',
    'processinginstruction',
    'sgmldeclaration',
    'doctype',
    'comment',
    'opentagstart',
    'attribute',
    'opentag',
    'closetag',
    'opencdata',
    'cdata',
    'closecdata',
    'error',
    'end',
    'ready',
    'script',
    'opennamespace',
    'closenamespace'
  ]

  function SAXParser (strict, opt) {
    if (!(this instanceof SAXParser)) {
      return new SAXParser(strict, opt)
    }

    var parser = this
    clearBuffers(parser)
    parser.q = parser.c = ''
    parser.bufferCheckPosition = sax.MAX_BUFFER_LENGTH
    parser.opt = opt || {}
    parser.opt.lowercase = parser.opt.lowercase || parser.opt.lowercasetags
    parser.looseCase = parser.opt.lowercase ? 'toLowerCase' : 'toUpperCase'
    parser.tags = []
    parser.closed = parser.closedRoot = parser.sawRoot = false
    parser.tag = parser.error = null
    parser.strict = !!strict
    parser.noscript = !!(strict || parser.opt.noscript)
    parser.state = S.BEGIN
    parser.strictEntities = parser.opt.strictEntities
    parser.ENTITIES = parser.strictEntities ? Object.create(sax.XML_ENTITIES) : Object.create(sax.ENTITIES)
    parser.attribList = []

    // namespaces form a prototype chain.
    // it always points at the current tag,
    // which protos to its parent tag.
    if (parser.opt.xmlns) {
      parser.ns = Object.create(rootNS)
    }

    // mostly just for error reporting
    parser.trackPosition = parser.opt.position !== false
    if (parser.trackPosition) {
      parser.position = parser.line = parser.column = 0
    }
    emit(parser, 'onready')
  }

  if (!Object.create) {
    Object.create = function (o) {
      function F () {}
      F.prototype = o
      var newf = new F()
      return newf
    }
  }

  if (!Object.keys) {
    Object.keys = function (o) {
      var a = []
      for (var i in o) if (o.hasOwnProperty(i)) a.push(i)
      return a
    }
  }

  function checkBufferLength (parser) {
    var maxAllowed = Math.max(sax.MAX_BUFFER_LENGTH, 10)
    var maxActual = 0
    for (var i = 0, l = buffers.length; i < l; i++) {
      var len = parser[buffers[i]].length
      if (len > maxAllowed) {
        // Text/cdata nodes can get big, and since they're buffered,
        // we can get here under normal conditions.
        // Avoid issues by emitting the text node now,
        // so at least it won't get any bigger.
        switch (buffers[i]) {
          case 'textNode':
            closeText(parser)
            break

          case 'cdata':
            emitNode(parser, 'oncdata', parser.cdata)
            parser.cdata = ''
            break

          case 'script':
            emitNode(parser, 'onscript', parser.script)
            parser.script = ''
            break

          default:
            error(parser, 'Max buffer length exceeded: ' + buffers[i])
        }
      }
      maxActual = Math.max(maxActual, len)
    }
    // schedule the next check for the earliest possible buffer overrun.
    var m = sax.MAX_BUFFER_LENGTH - maxActual
    parser.bufferCheckPosition = m + parser.position
  }

  function clearBuffers (parser) {
    for (var i = 0, l = buffers.length; i < l; i++) {
      parser[buffers[i]] = ''
    }
  }

  function flushBuffers (parser) {
    closeText(parser)
    if (parser.cdata !== '') {
      emitNode(parser, 'oncdata', parser.cdata)
      parser.cdata = ''
    }
    if (parser.script !== '') {
      emitNode(parser, 'onscript', parser.script)
      parser.script = ''
    }
  }

  SAXParser.prototype = {
    end: function () { end(this) },
    write: write,
    resume: function () { this.error = null; return this },
    close: function () { return this.write(null) },
    flush: function () { flushBuffers(this) }
  }

  var Stream
  try {
    Stream = require('stream').Stream
  } catch (ex) {
    Stream = function () {}
  }

  var streamWraps = sax.EVENTS.filter(function (ev) {
    return ev !== 'error' && ev !== 'end'
  })

  function createStream (strict, opt) {
    return new SAXStream(strict, opt)
  }

  function SAXStream (strict, opt) {
    if (!(this instanceof SAXStream)) {
      return new SAXStream(strict, opt)
    }

    Stream.apply(this)

    this._parser = new SAXParser(strict, opt)
    this.writable = true
    this.readable = true

    var me = this

    this._parser.onend = function () {
      me.emit('end')
    }

    this._parser.onerror = function (er) {
      me.emit('error', er)

      // if didn't throw, then means error was handled.
      // go ahead and clear error, so we can write again.
      me._parser.error = null
    }

    this._decoder = null

    streamWraps.forEach(function (ev) {
      Object.defineProperty(me, 'on' + ev, {
        get: function () {
          return me._parser['on' + ev]
        },
        set: function (h) {
          if (!h) {
            me.removeAllListeners(ev)
            me._parser['on' + ev] = h
            return h
          }
          me.on(ev, h)
        },
        enumerable: true,
        configurable: false
      })
    })
  }

  SAXStream.prototype = Object.create(Stream.prototype, {
    constructor: {
      value: SAXStream
    }
  })

  SAXStream.prototype.write = function (data) {
    if (typeof Buffer === 'function' &&
      typeof Buffer.isBuffer === 'function' &&
      Buffer.isBuffer(data)) {
      if (!this._decoder) {
        var SD = require('string_decoder').StringDecoder
        this._decoder = new SD('utf8')
      }
      data = this._decoder.write(data)
    }

    this._parser.write(data.toString())
    this.emit('data', data)
    return true
  }

  SAXStream.prototype.end = function (chunk) {
    if (chunk && chunk.length) {
      this.write(chunk)
    }
    this._parser.end()
    return true
  }

  SAXStream.prototype.on = function (ev, handler) {
    var me = this
    if (!me._parser['on' + ev] && streamWraps.indexOf(ev) !== -1) {
      me._parser['on' + ev] = function () {
        var args = arguments.length === 1 ? [arguments[0]] : Array.apply(null, arguments)
        args.splice(0, 0, ev)
        me.emit.apply(me, args)
      }
    }

    return Stream.prototype.on.call(me, ev, handler)
  }

  // this really needs to be replaced with character classes.
  // XML allows all manner of ridiculous numbers and digits.
  var CDATA = '[CDATA['
  var DOCTYPE = 'DOCTYPE'
  var XML_NAMESPACE = 'http://www.w3.org/XML/1998/namespace'
  var XMLNS_NAMESPACE = 'http://www.w3.org/2000/xmlns/'
  var rootNS = { xml: XML_NAMESPACE, xmlns: XMLNS_NAMESPACE }

  // http://www.w3.org/TR/REC-xml/#NT-NameStartChar
  // This implementation works on strings, a single character at a time
  // as such, it cannot ever support astral-plane characters (10000-EFFFF)
  // without a significant breaking change to either this  parser, or the
  // JavaScript language.  Implementation of an emoji-capable xml parser
  // is left as an exercise for the reader.
  var nameStart = /[:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/

  var nameBody = /[:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\u00B7\u0300-\u036F\u203F-\u2040.\d-]/

  var entityStart = /[#:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/
  var entityBody = /[#:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\u00B7\u0300-\u036F\u203F-\u2040.\d-]/

  function isWhitespace (c) {
    return c === ' ' || c === '\n' || c === '\r' || c === '\t'
  }

  function isQuote (c) {
    return c === '"' || c === '\''
  }

  function isAttribEnd (c) {
    return c === '>' || isWhitespace(c)
  }

  function isMatch (regex, c) {
    return regex.test(c)
  }

  function notMatch (regex, c) {
    return !isMatch(regex, c)
  }

  var S = 0
  sax.STATE = {
    BEGIN: S++, // leading byte order mark or whitespace
    BEGIN_WHITESPACE: S++, // leading whitespace
    TEXT: S++, // general stuff
    TEXT_ENTITY: S++, // &amp and such.
    OPEN_WAKA: S++, // <
    SGML_DECL: S++, // <!BLARG
    SGML_DECL_QUOTED: S++, // <!BLARG foo "bar
    DOCTYPE: S++, // <!DOCTYPE
    DOCTYPE_QUOTED: S++, // <!DOCTYPE "//blah
    DOCTYPE_DTD: S++, // <!DOCTYPE "//blah" [ ...
    DOCTYPE_DTD_QUOTED: S++, // <!DOCTYPE "//blah" [ "foo
    COMMENT_STARTING: S++, // <!-
    COMMENT: S++, // <!--
    COMMENT_ENDING: S++, // <!-- blah -
    COMMENT_ENDED: S++, // <!-- blah --
    CDATA: S++, // <![CDATA[ something
    CDATA_ENDING: S++, // ]
    CDATA_ENDING_2: S++, // ]]
    PROC_INST: S++, // <?hi
    PROC_INST_BODY: S++, // <?hi there
    PROC_INST_ENDING: S++, // <?hi "there" ?
    OPEN_TAG: S++, // <strong
    OPEN_TAG_SLASH: S++, // <strong /
    ATTRIB: S++, // <a
    ATTRIB_NAME: S++, // <a foo
    ATTRIB_NAME_SAW_WHITE: S++, // <a foo _
    ATTRIB_VALUE: S++, // <a foo=
    ATTRIB_VALUE_QUOTED: S++, // <a foo="bar
    ATTRIB_VALUE_CLOSED: S++, // <a foo="bar"
    ATTRIB_VALUE_UNQUOTED: S++, // <a foo=bar
    ATTRIB_VALUE_ENTITY_Q: S++, // <foo bar="&quot;"
    ATTRIB_VALUE_ENTITY_U: S++, // <foo bar=&quot
    CLOSE_TAG: S++, // </a
    CLOSE_TAG_SAW_WHITE: S++, // </a   >
    SCRIPT: S++, // <script> ...
    SCRIPT_ENDING: S++ // <script> ... <
  }

  sax.XML_ENTITIES = {
    'amp': '&',
    'gt': '>',
    'lt': '<',
    'quot': '"',
    'apos': "'"
  }

  sax.ENTITIES = {
    'amp': '&',
    'gt': '>',
    'lt': '<',
    'quot': '"',
    'apos': "'",
    'AElig': 198,
    'Aacute': 193,
    'Acirc': 194,
    'Agrave': 192,
    'Aring': 197,
    'Atilde': 195,
    'Auml': 196,
    'Ccedil': 199,
    'ETH': 208,
    'Eacute': 201,
    'Ecirc': 202,
    'Egrave': 200,
    'Euml': 203,
    'Iacute': 205,
    'Icirc': 206,
    'Igrave': 204,
    'Iuml': 207,
    'Ntilde': 209,
    'Oacute': 211,
    'Ocirc': 212,
    'Ograve': 210,
    'Oslash': 216,
    'Otilde': 213,
    'Ouml': 214,
    'THORN': 222,
    'Uacute': 218,
    'Ucirc': 219,
    'Ugrave': 217,
    'Uuml': 220,
    'Yacute': 221,
    'aacute': 225,
    'acirc': 226,
    'aelig': 230,
    'agrave': 224,
    'aring': 229,
    'atilde': 227,
    'auml': 228,
    'ccedil': 231,
    'eacute': 233,
    'ecirc': 234,
    'egrave': 232,
    'eth': 240,
    'euml': 235,
    'iacute': 237,
    'icirc': 238,
    'igrave': 236,
    'iuml': 239,
    'ntilde': 241,
    'oacute': 243,
    'ocirc': 244,
    'ograve': 242,
    'oslash': 248,
    'otilde': 245,
    'ouml': 246,
    'szlig': 223,
    'thorn': 254,
    'uacute': 250,
    'ucirc': 251,
    'ugrave': 249,
    'uuml': 252,
    'yacute': 253,
    'yuml': 255,
    'copy': 169,
    'reg': 174,
    'nbsp': 160,
    'iexcl': 161,
    'cent': 162,
    'pound': 163,
    'curren': 164,
    'yen': 165,
    'brvbar': 166,
    'sect': 167,
    'uml': 168,
    'ordf': 170,
    'laquo': 171,
    'not': 172,
    'shy': 173,
    'macr': 175,
    'deg': 176,
    'plusmn': 177,
    'sup1': 185,
    'sup2': 178,
    'sup3': 179,
    'acute': 180,
    'micro': 181,
    'para': 182,
    'middot': 183,
    'cedil': 184,
    'ordm': 186,
    'raquo': 187,
    'frac14': 188,
    'frac12': 189,
    'frac34': 190,
    'iquest': 191,
    'times': 215,
    'divide': 247,
    'OElig': 338,
    'oelig': 339,
    'Scaron': 352,
    'scaron': 353,
    'Yuml': 376,
    'fnof': 402,
    'circ': 710,
    'tilde': 732,
    'Alpha': 913,
    'Beta': 914,
    'Gamma': 915,
    'Delta': 916,
    'Epsilon': 917,
    'Zeta': 918,
    'Eta': 919,
    'Theta': 920,
    'Iota': 921,
    'Kappa': 922,
    'Lambda': 923,
    'Mu': 924,
    'Nu': 925,
    'Xi': 926,
    'Omicron': 927,
    'Pi': 928,
    'Rho': 929,
    'Sigma': 931,
    'Tau': 932,
    'Upsilon': 933,
    'Phi': 934,
    'Chi': 935,
    'Psi': 936,
    'Omega': 937,
    'alpha': 945,
    'beta': 946,
    'gamma': 947,
    'delta': 948,
    'epsilon': 949,
    'zeta': 950,
    'eta': 951,
    'theta': 952,
    'iota': 953,
    'kappa': 954,
    'lambda': 955,
    'mu': 956,
    'nu': 957,
    'xi': 958,
    'omicron': 959,
    'pi': 960,
    'rho': 961,
    'sigmaf': 962,
    'sigma': 963,
    'tau': 964,
    'upsilon': 965,
    'phi': 966,
    'chi': 967,
    'psi': 968,
    'omega': 969,
    'thetasym': 977,
    'upsih': 978,
    'piv': 982,
    'ensp': 8194,
    'emsp': 8195,
    'thinsp': 8201,
    'zwnj': 8204,
    'zwj': 8205,
    'lrm': 8206,
    'rlm': 8207,
    'ndash': 8211,
    'mdash': 8212,
    'lsquo': 8216,
    'rsquo': 8217,
    'sbquo': 8218,
    'ldquo': 8220,
    'rdquo': 8221,
    'bdquo': 8222,
    'dagger': 8224,
    'Dagger': 8225,
    'bull': 8226,
    'hellip': 8230,
    'permil': 8240,
    'prime': 8242,
    'Prime': 8243,
    'lsaquo': 8249,
    'rsaquo': 8250,
    'oline': 8254,
    'frasl': 8260,
    'euro': 8364,
    'image': 8465,
    'weierp': 8472,
    'real': 8476,
    'trade': 8482,
    'alefsym': 8501,
    'larr': 8592,
    'uarr': 8593,
    'rarr': 8594,
    'darr': 8595,
    'harr': 8596,
    'crarr': 8629,
    'lArr': 8656,
    'uArr': 8657,
    'rArr': 8658,
    'dArr': 8659,
    'hArr': 8660,
    'forall': 8704,
    'part': 8706,
    'exist': 8707,
    'empty': 8709,
    'nabla': 8711,
    'isin': 8712,
    'notin': 8713,
    'ni': 8715,
    'prod': 8719,
    'sum': 8721,
    'minus': 8722,
    'lowast': 8727,
    'radic': 8730,
    'prop': 8733,
    'infin': 8734,
    'ang': 8736,
    'and': 8743,
    'or': 8744,
    'cap': 8745,
    'cup': 8746,
    'int': 8747,
    'there4': 8756,
    'sim': 8764,
    'cong': 8773,
    'asymp': 8776,
    'ne': 8800,
    'equiv': 8801,
    'le': 8804,
    'ge': 8805,
    'sub': 8834,
    'sup': 8835,
    'nsub': 8836,
    'sube': 8838,
    'supe': 8839,
    'oplus': 8853,
    'otimes': 8855,
    'perp': 8869,
    'sdot': 8901,
    'lceil': 8968,
    'rceil': 8969,
    'lfloor': 8970,
    'rfloor': 8971,
    'lang': 9001,
    'rang': 9002,
    'loz': 9674,
    'spades': 9824,
    'clubs': 9827,
    'hearts': 9829,
    'diams': 9830
  }

  Object.keys(sax.ENTITIES).forEach(function (key) {
    var e = sax.ENTITIES[key]
    var s = typeof e === 'number' ? String.fromCharCode(e) : e
    sax.ENTITIES[key] = s
  })

  for (var s in sax.STATE) {
    sax.STATE[sax.STATE[s]] = s
  }

  // shorthand
  S = sax.STATE

  function emit (parser, event, data) {
    parser[event] && parser[event](data)
  }

  function emitNode (parser, nodeType, data) {
    if (parser.textNode) closeText(parser)
    emit(parser, nodeType, data)
  }

  function closeText (parser) {
    parser.textNode = textopts(parser.opt, parser.textNode)
    if (parser.textNode) emit(parser, 'ontext', parser.textNode)
    parser.textNode = ''
  }

  function textopts (opt, text) {
    if (opt.trim) text = text.trim()
    if (opt.normalize) text = text.replace(/\s+/g, ' ')
    return text
  }

  function error (parser, er) {
    closeText(parser)
    if (parser.trackPosition) {
      er += '\nLine: ' + parser.line +
        '\nColumn: ' + parser.column +
        '\nChar: ' + parser.c
    }
    er = new Error(er)
    parser.error = er
    emit(parser, 'onerror', er)
    return parser
  }

  function end (parser) {
    if (parser.sawRoot && !parser.closedRoot) strictFail(parser, 'Unclosed root tag')
    if ((parser.state !== S.BEGIN) &&
      (parser.state !== S.BEGIN_WHITESPACE) &&
      (parser.state !== S.TEXT)) {
      error(parser, 'Unexpected end')
    }
    closeText(parser)
    parser.c = ''
    parser.closed = true
    emit(parser, 'onend')
    SAXParser.call(parser, parser.strict, parser.opt)
    return parser
  }

  function strictFail (parser, message) {
    if (typeof parser !== 'object' || !(parser instanceof SAXParser)) {
      throw new Error('bad call to strictFail')
    }
    if (parser.strict) {
      error(parser, message)
    }
  }

  function newTag (parser) {
    if (!parser.strict) parser.tagName = parser.tagName[parser.looseCase]()
    var parent = parser.tags[parser.tags.length - 1] || parser
    var tag = parser.tag = { name: parser.tagName, attributes: {} }

    // will be overridden if tag contails an xmlns="foo" or xmlns:foo="bar"
    if (parser.opt.xmlns) {
      tag.ns = parent.ns
    }
    parser.attribList.length = 0
    emitNode(parser, 'onopentagstart', tag)
  }

  function qname (name, attribute) {
    var i = name.indexOf(':')
    var qualName = i < 0 ? [ '', name ] : name.split(':')
    var prefix = qualName[0]
    var local = qualName[1]

    // <x "xmlns"="http://foo">
    if (attribute && name === 'xmlns') {
      prefix = 'xmlns'
      local = ''
    }

    return { prefix: prefix, local: local }
  }

  function attrib (parser) {
    if (!parser.strict) {
      parser.attribName = parser.attribName[parser.looseCase]()
    }

    if (parser.attribList.indexOf(parser.attribName) !== -1 ||
      parser.tag.attributes.hasOwnProperty(parser.attribName)) {
      parser.attribName = parser.attribValue = ''
      return
    }

    if (parser.opt.xmlns) {
      var qn = qname(parser.attribName, true)
      var prefix = qn.prefix
      var local = qn.local

      if (prefix === 'xmlns') {
        // namespace binding attribute. push the binding into scope
        if (local === 'xml' && parser.attribValue !== XML_NAMESPACE) {
          strictFail(parser,
            'xml: prefix must be bound to ' + XML_NAMESPACE + '\n' +
            'Actual: ' + parser.attribValue)
        } else if (local === 'xmlns' && parser.attribValue !== XMLNS_NAMESPACE) {
          strictFail(parser,
            'xmlns: prefix must be bound to ' + XMLNS_NAMESPACE + '\n' +
            'Actual: ' + parser.attribValue)
        } else {
          var tag = parser.tag
          var parent = parser.tags[parser.tags.length - 1] || parser
          if (tag.ns === parent.ns) {
            tag.ns = Object.create(parent.ns)
          }
          tag.ns[local] = parser.attribValue
        }
      }

      // defer onattribute events until all attributes have been seen
      // so any new bindings can take effect. preserve attribute order
      // so deferred events can be emitted in document order
      parser.attribList.push([parser.attribName, parser.attribValue])
    } else {
      // in non-xmlns mode, we can emit the event right away
      parser.tag.attributes[parser.attribName] = parser.attribValue
      emitNode(parser, 'onattribute', {
        name: parser.attribName,
        value: parser.attribValue
      })
    }

    parser.attribName = parser.attribValue = ''
  }

  function openTag (parser, selfClosing) {
    if (parser.opt.xmlns) {
      // emit namespace binding events
      var tag = parser.tag

      // add namespace info to tag
      var qn = qname(parser.tagName)
      tag.prefix = qn.prefix
      tag.local = qn.local
      tag.uri = tag.ns[qn.prefix] || ''

      if (tag.prefix && !tag.uri) {
        strictFail(parser, 'Unbound namespace prefix: ' +
          JSON.stringify(parser.tagName))
        tag.uri = qn.prefix
      }

      var parent = parser.tags[parser.tags.length - 1] || parser
      if (tag.ns && parent.ns !== tag.ns) {
        Object.keys(tag.ns).forEach(function (p) {
          emitNode(parser, 'onopennamespace', {
            prefix: p,
            uri: tag.ns[p]
          })
        })
      }

      // handle deferred onattribute events
      // Note: do not apply default ns to attributes:
      //   http://www.w3.org/TR/REC-xml-names/#defaulting
      for (var i = 0, l = parser.attribList.length; i < l; i++) {
        var nv = parser.attribList[i]
        var name = nv[0]
        var value = nv[1]
        var qualName = qname(name, true)
        var prefix = qualName.prefix
        var local = qualName.local
        var uri = prefix === '' ? '' : (tag.ns[prefix] || '')
        var a = {
          name: name,
          value: value,
          prefix: prefix,
          local: local,
          uri: uri
        }

        // if there's any attributes with an undefined namespace,
        // then fail on them now.
        if (prefix && prefix !== 'xmlns' && !uri) {
          strictFail(parser, 'Unbound namespace prefix: ' +
            JSON.stringify(prefix))
          a.uri = prefix
        }
        parser.tag.attributes[name] = a
        emitNode(parser, 'onattribute', a)
      }
      parser.attribList.length = 0
    }

    parser.tag.isSelfClosing = !!selfClosing

    // process the tag
    parser.sawRoot = true
    parser.tags.push(parser.tag)
    emitNode(parser, 'onopentag', parser.tag)
    if (!selfClosing) {
      // special case for <script> in non-strict mode.
      if (!parser.noscript && parser.tagName.toLowerCase() === 'script') {
        parser.state = S.SCRIPT
      } else {
        parser.state = S.TEXT
      }
      parser.tag = null
      parser.tagName = ''
    }
    parser.attribName = parser.attribValue = ''
    parser.attribList.length = 0
  }

  function closeTag (parser) {
    if (!parser.tagName) {
      strictFail(parser, 'Weird empty close tag.')
      parser.textNode += '</>'
      parser.state = S.TEXT
      return
    }

    if (parser.script) {
      if (parser.tagName !== 'script') {
        parser.script += '</' + parser.tagName + '>'
        parser.tagName = ''
        parser.state = S.SCRIPT
        return
      }
      emitNode(parser, 'onscript', parser.script)
      parser.script = ''
    }

    // first make sure that the closing tag actually exists.
    // <a><b></c></b></a> will close everything, otherwise.
    var t = parser.tags.length
    var tagName = parser.tagName
    if (!parser.strict) {
      tagName = tagName[parser.looseCase]()
    }
    var closeTo = tagName
    while (t--) {
      var close = parser.tags[t]
      if (close.name !== closeTo) {
        // fail the first time in strict mode
        strictFail(parser, 'Unexpected close tag')
      } else {
        break
      }
    }

    // didn't find it.  we already failed for strict, so just abort.
    if (t < 0) {
      strictFail(parser, 'Unmatched closing tag: ' + parser.tagName)
      parser.textNode += '</' + parser.tagName + '>'
      parser.state = S.TEXT
      return
    }
    parser.tagName = tagName
    var s = parser.tags.length
    while (s-- > t) {
      var tag = parser.tag = parser.tags.pop()
      parser.tagName = parser.tag.name
      emitNode(parser, 'onclosetag', parser.tagName)

      var x = {}
      for (var i in tag.ns) {
        x[i] = tag.ns[i]
      }

      var parent = parser.tags[parser.tags.length - 1] || parser
      if (parser.opt.xmlns && tag.ns !== parent.ns) {
        // remove namespace bindings introduced by tag
        Object.keys(tag.ns).forEach(function (p) {
          var n = tag.ns[p]
          emitNode(parser, 'onclosenamespace', { prefix: p, uri: n })
        })
      }
    }
    if (t === 0) parser.closedRoot = true
    parser.tagName = parser.attribValue = parser.attribName = ''
    parser.attribList.length = 0
    parser.state = S.TEXT
  }

  function parseEntity (parser) {
    var entity = parser.entity
    var entityLC = entity.toLowerCase()
    var num
    var numStr = ''

    if (parser.ENTITIES[entity]) {
      return parser.ENTITIES[entity]
    }
    if (parser.ENTITIES[entityLC]) {
      return parser.ENTITIES[entityLC]
    }
    entity = entityLC
    if (entity.charAt(0) === '#') {
      if (entity.charAt(1) === 'x') {
        entity = entity.slice(2)
        num = parseInt(entity, 16)
        numStr = num.toString(16)
      } else {
        entity = entity.slice(1)
        num = parseInt(entity, 10)
        numStr = num.toString(10)
      }
    }
    entity = entity.replace(/^0+/, '')
    if (isNaN(num) || numStr.toLowerCase() !== entity) {
      strictFail(parser, 'Invalid character entity')
      return '&' + parser.entity + ';'
    }

    return String.fromCodePoint(num)
  }

  function beginWhiteSpace (parser, c) {
    if (c === '<') {
      parser.state = S.OPEN_WAKA
      parser.startTagPosition = parser.position
    } else if (!isWhitespace(c)) {
      // have to process this as a text node.
      // weird, but happens.
      strictFail(parser, 'Non-whitespace before first tag.')
      parser.textNode = c
      parser.state = S.TEXT
    }
  }

  function charAt (chunk, i) {
    var result = ''
    if (i < chunk.length) {
      result = chunk.charAt(i)
    }
    return result
  }

  function write (chunk) {
    var parser = this
    if (this.error) {
      throw this.error
    }
    if (parser.closed) {
      return error(parser,
        'Cannot write after close. Assign an onready handler.')
    }
    if (chunk === null) {
      return end(parser)
    }
    if (typeof chunk === 'object') {
      chunk = chunk.toString()
    }
    var i = 0
    var c = ''
    while (true) {
      c = charAt(chunk, i++)
      parser.c = c

      if (!c) {
        break
      }

      if (parser.trackPosition) {
        parser.position++
        if (c === '\n') {
          parser.line++
          parser.column = 0
        } else {
          parser.column++
        }
      }

      switch (parser.state) {
        case S.BEGIN:
          parser.state = S.BEGIN_WHITESPACE
          if (c === '\uFEFF') {
            continue
          }
          beginWhiteSpace(parser, c)
          continue

        case S.BEGIN_WHITESPACE:
          beginWhiteSpace(parser, c)
          continue

        case S.TEXT:
          if (parser.sawRoot && !parser.closedRoot) {
            var starti = i - 1
            while (c && c !== '<' && c !== '&') {
              c = charAt(chunk, i++)
              if (c && parser.trackPosition) {
                parser.position++
                if (c === '\n') {
                  parser.line++
                  parser.column = 0
                } else {
                  parser.column++
                }
              }
            }
            parser.textNode += chunk.substring(starti, i - 1)
          }
          if (c === '<' && !(parser.sawRoot && parser.closedRoot && !parser.strict)) {
            parser.state = S.OPEN_WAKA
            parser.startTagPosition = parser.position
          } else {
            if (!isWhitespace(c) && (!parser.sawRoot || parser.closedRoot)) {
              strictFail(parser, 'Text data outside of root node.')
            }
            if (c === '&') {
              parser.state = S.TEXT_ENTITY
            } else {
              parser.textNode += c
            }
          }
          continue

        case S.SCRIPT:
          // only non-strict
          if (c === '<') {
            parser.state = S.SCRIPT_ENDING
          } else {
            parser.script += c
          }
          continue

        case S.SCRIPT_ENDING:
          if (c === '/') {
            parser.state = S.CLOSE_TAG
          } else {
            parser.script += '<' + c
            parser.state = S.SCRIPT
          }
          continue

        case S.OPEN_WAKA:
          // either a /, ?, !, or text is coming next.
          if (c === '!') {
            parser.state = S.SGML_DECL
            parser.sgmlDecl = ''
          } else if (isWhitespace(c)) {
            // wait for it...
          } else if (isMatch(nameStart, c)) {
            parser.state = S.OPEN_TAG
            parser.tagName = c
          } else if (c === '/') {
            parser.state = S.CLOSE_TAG
            parser.tagName = ''
          } else if (c === '?') {
            parser.state = S.PROC_INST
            parser.procInstName = parser.procInstBody = ''
          } else {
            strictFail(parser, 'Unencoded <')
            // if there was some whitespace, then add that in.
            if (parser.startTagPosition + 1 < parser.position) {
              var pad = parser.position - parser.startTagPosition
              c = new Array(pad).join(' ') + c
            }
            parser.textNode += '<' + c
            parser.state = S.TEXT
          }
          continue

        case S.SGML_DECL:
          if ((parser.sgmlDecl + c).toUpperCase() === CDATA) {
            emitNode(parser, 'onopencdata')
            parser.state = S.CDATA
            parser.sgmlDecl = ''
            parser.cdata = ''
          } else if (parser.sgmlDecl + c === '--') {
            parser.state = S.COMMENT
            parser.comment = ''
            parser.sgmlDecl = ''
          } else if ((parser.sgmlDecl + c).toUpperCase() === DOCTYPE) {
            parser.state = S.DOCTYPE
            if (parser.doctype || parser.sawRoot) {
              strictFail(parser,
                'Inappropriately located doctype declaration')
            }
            parser.doctype = ''
            parser.sgmlDecl = ''
          } else if (c === '>') {
            emitNode(parser, 'onsgmldeclaration', parser.sgmlDecl)
            parser.sgmlDecl = ''
            parser.state = S.TEXT
          } else if (isQuote(c)) {
            parser.state = S.SGML_DECL_QUOTED
            parser.sgmlDecl += c
          } else {
            parser.sgmlDecl += c
          }
          continue

        case S.SGML_DECL_QUOTED:
          if (c === parser.q) {
            parser.state = S.SGML_DECL
            parser.q = ''
          }
          parser.sgmlDecl += c
          continue

        case S.DOCTYPE:
          if (c === '>') {
            parser.state = S.TEXT
            emitNode(parser, 'ondoctype', parser.doctype)
            parser.doctype = true // just remember that we saw it.
          } else {
            parser.doctype += c
            if (c === '[') {
              parser.state = S.DOCTYPE_DTD
            } else if (isQuote(c)) {
              parser.state = S.DOCTYPE_QUOTED
              parser.q = c
            }
          }
          continue

        case S.DOCTYPE_QUOTED:
          parser.doctype += c
          if (c === parser.q) {
            parser.q = ''
            parser.state = S.DOCTYPE
          }
          continue

        case S.DOCTYPE_DTD:
          parser.doctype += c
          if (c === ']') {
            parser.state = S.DOCTYPE
          } else if (isQuote(c)) {
            parser.state = S.DOCTYPE_DTD_QUOTED
            parser.q = c
          }
          continue

        case S.DOCTYPE_DTD_QUOTED:
          parser.doctype += c
          if (c === parser.q) {
            parser.state = S.DOCTYPE_DTD
            parser.q = ''
          }
          continue

        case S.COMMENT:
          if (c === '-') {
            parser.state = S.COMMENT_ENDING
          } else {
            parser.comment += c
          }
          continue

        case S.COMMENT_ENDING:
          if (c === '-') {
            parser.state = S.COMMENT_ENDED
            parser.comment = textopts(parser.opt, parser.comment)
            if (parser.comment) {
              emitNode(parser, 'oncomment', parser.comment)
            }
            parser.comment = ''
          } else {
            parser.comment += '-' + c
            parser.state = S.COMMENT
          }
          continue

        case S.COMMENT_ENDED:
          if (c !== '>') {
            strictFail(parser, 'Malformed comment')
            // allow <!-- blah -- bloo --> in non-strict mode,
            // which is a comment of " blah -- bloo "
            parser.comment += '--' + c
            parser.state = S.COMMENT
          } else {
            parser.state = S.TEXT
          }
          continue

        case S.CDATA:
          if (c === ']') {
            parser.state = S.CDATA_ENDING
          } else {
            parser.cdata += c
          }
          continue

        case S.CDATA_ENDING:
          if (c === ']') {
            parser.state = S.CDATA_ENDING_2
          } else {
            parser.cdata += ']' + c
            parser.state = S.CDATA
          }
          continue

        case S.CDATA_ENDING_2:
          if (c === '>') {
            if (parser.cdata) {
              emitNode(parser, 'oncdata', parser.cdata)
            }
            emitNode(parser, 'onclosecdata')
            parser.cdata = ''
            parser.state = S.TEXT
          } else if (c === ']') {
            parser.cdata += ']'
          } else {
            parser.cdata += ']]' + c
            parser.state = S.CDATA
          }
          continue

        case S.PROC_INST:
          if (c === '?') {
            parser.state = S.PROC_INST_ENDING
          } else if (isWhitespace(c)) {
            parser.state = S.PROC_INST_BODY
          } else {
            parser.procInstName += c
          }
          continue

        case S.PROC_INST_BODY:
          if (!parser.procInstBody && isWhitespace(c)) {
            continue
          } else if (c === '?') {
            parser.state = S.PROC_INST_ENDING
          } else {
            parser.procInstBody += c
          }
          continue

        case S.PROC_INST_ENDING:
          if (c === '>') {
            emitNode(parser, 'onprocessinginstruction', {
              name: parser.procInstName,
              body: parser.procInstBody
            })
            parser.procInstName = parser.procInstBody = ''
            parser.state = S.TEXT
          } else {
            parser.procInstBody += '?' + c
            parser.state = S.PROC_INST_BODY
          }
          continue

        case S.OPEN_TAG:
          if (isMatch(nameBody, c)) {
            parser.tagName += c
          } else {
            newTag(parser)
            if (c === '>') {
              openTag(parser)
            } else if (c === '/') {
              parser.state = S.OPEN_TAG_SLASH
            } else {
              if (!isWhitespace(c)) {
                strictFail(parser, 'Invalid character in tag name')
              }
              parser.state = S.ATTRIB
            }
          }
          continue

        case S.OPEN_TAG_SLASH:
          if (c === '>') {
            openTag(parser, true)
            closeTag(parser)
          } else {
            strictFail(parser, 'Forward-slash in opening tag not followed by >')
            parser.state = S.ATTRIB
          }
          continue

        case S.ATTRIB:
          // haven't read the attribute name yet.
          if (isWhitespace(c)) {
            continue
          } else if (c === '>') {
            openTag(parser)
          } else if (c === '/') {
            parser.state = S.OPEN_TAG_SLASH
          } else if (isMatch(nameStart, c)) {
            parser.attribName = c
            parser.attribValue = ''
            parser.state = S.ATTRIB_NAME
          } else {
            strictFail(parser, 'Invalid attribute name')
          }
          continue

        case S.ATTRIB_NAME:
          if (c === '=') {
            parser.state = S.ATTRIB_VALUE
          } else if (c === '>') {
            strictFail(parser, 'Attribute without value')
            parser.attribValue = parser.attribName
            attrib(parser)
            openTag(parser)
          } else if (isWhitespace(c)) {
            parser.state = S.ATTRIB_NAME_SAW_WHITE
          } else if (isMatch(nameBody, c)) {
            parser.attribName += c
          } else {
            strictFail(parser, 'Invalid attribute name')
          }
          continue

        case S.ATTRIB_NAME_SAW_WHITE:
          if (c === '=') {
            parser.state = S.ATTRIB_VALUE
          } else if (isWhitespace(c)) {
            continue
          } else {
            strictFail(parser, 'Attribute without value')
            parser.tag.attributes[parser.attribName] = ''
            parser.attribValue = ''
            emitNode(parser, 'onattribute', {
              name: parser.attribName,
              value: ''
            })
            parser.attribName = ''
            if (c === '>') {
              openTag(parser)
            } else if (isMatch(nameStart, c)) {
              parser.attribName = c
              parser.state = S.ATTRIB_NAME
            } else {
              strictFail(parser, 'Invalid attribute name')
              parser.state = S.ATTRIB
            }
          }
          continue

        case S.ATTRIB_VALUE:
          if (isWhitespace(c)) {
            continue
          } else if (isQuote(c)) {
            parser.q = c
            parser.state = S.ATTRIB_VALUE_QUOTED
          } else {
            strictFail(parser, 'Unquoted attribute value')
            parser.state = S.ATTRIB_VALUE_UNQUOTED
            parser.attribValue = c
          }
          continue

        case S.ATTRIB_VALUE_QUOTED:
          if (c !== parser.q) {
            if (c === '&') {
              parser.state = S.ATTRIB_VALUE_ENTITY_Q
            } else {
              parser.attribValue += c
            }
            continue
          }
          attrib(parser)
          parser.q = ''
          parser.state = S.ATTRIB_VALUE_CLOSED
          continue

        case S.ATTRIB_VALUE_CLOSED:
          if (isWhitespace(c)) {
            parser.state = S.ATTRIB
          } else if (c === '>') {
            openTag(parser)
          } else if (c === '/') {
            parser.state = S.OPEN_TAG_SLASH
          } else if (isMatch(nameStart, c)) {
            strictFail(parser, 'No whitespace between attributes')
            parser.attribName = c
            parser.attribValue = ''
            parser.state = S.ATTRIB_NAME
          } else {
            strictFail(parser, 'Invalid attribute name')
          }
          continue

        case S.ATTRIB_VALUE_UNQUOTED:
          if (!isAttribEnd(c)) {
            if (c === '&') {
              parser.state = S.ATTRIB_VALUE_ENTITY_U
            } else {
              parser.attribValue += c
            }
            continue
          }
          attrib(parser)
          if (c === '>') {
            openTag(parser)
          } else {
            parser.state = S.ATTRIB
          }
          continue

        case S.CLOSE_TAG:
          if (!parser.tagName) {
            if (isWhitespace(c)) {
              continue
            } else if (notMatch(nameStart, c)) {
              if (parser.script) {
                parser.script += '</' + c
                parser.state = S.SCRIPT
              } else {
                strictFail(parser, 'Invalid tagname in closing tag.')
              }
            } else {
              parser.tagName = c
            }
          } else if (c === '>') {
            closeTag(parser)
          } else if (isMatch(nameBody, c)) {
            parser.tagName += c
          } else if (parser.script) {
            parser.script += '</' + parser.tagName
            parser.tagName = ''
            parser.state = S.SCRIPT
          } else {
            if (!isWhitespace(c)) {
              strictFail(parser, 'Invalid tagname in closing tag')
            }
            parser.state = S.CLOSE_TAG_SAW_WHITE
          }
          continue

        case S.CLOSE_TAG_SAW_WHITE:
          if (isWhitespace(c)) {
            continue
          }
          if (c === '>') {
            closeTag(parser)
          } else {
            strictFail(parser, 'Invalid characters in closing tag')
          }
          continue

        case S.TEXT_ENTITY:
        case S.ATTRIB_VALUE_ENTITY_Q:
        case S.ATTRIB_VALUE_ENTITY_U:
          var returnState
          var buffer
          switch (parser.state) {
            case S.TEXT_ENTITY:
              returnState = S.TEXT
              buffer = 'textNode'
              break

            case S.ATTRIB_VALUE_ENTITY_Q:
              returnState = S.ATTRIB_VALUE_QUOTED
              buffer = 'attribValue'
              break

            case S.ATTRIB_VALUE_ENTITY_U:
              returnState = S.ATTRIB_VALUE_UNQUOTED
              buffer = 'attribValue'
              break
          }

          if (c === ';') {
            parser[buffer] += parseEntity(parser)
            parser.entity = ''
            parser.state = returnState
          } else if (isMatch(parser.entity.length ? entityBody : entityStart, c)) {
            parser.entity += c
          } else {
            strictFail(parser, 'Invalid character in entity name')
            parser[buffer] += '&' + parser.entity + c
            parser.entity = ''
            parser.state = returnState
          }

          continue

        default:
          throw new Error(parser, 'Unknown state: ' + parser.state)
      }
    } // while

    if (parser.position >= parser.bufferCheckPosition) {
      checkBufferLength(parser)
    }
    return parser
  }

  /*! http://mths.be/fromcodepoint v0.1.0 by @mathias */
  /* istanbul ignore next */
  if (!String.fromCodePoint) {
    (function () {
      var stringFromCharCode = String.fromCharCode
      var floor = Math.floor
      var fromCodePoint = function () {
        var MAX_SIZE = 0x4000
        var codeUnits = []
        var highSurrogate
        var lowSurrogate
        var index = -1
        var length = arguments.length
        if (!length) {
          return ''
        }
        var result = ''
        while (++index < length) {
          var codePoint = Number(arguments[index])
          if (
            !isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity`
            codePoint < 0 || // not a valid Unicode code point
            codePoint > 0x10FFFF || // not a valid Unicode code point
            floor(codePoint) !== codePoint // not an integer
          ) {
            throw RangeError('Invalid code point: ' + codePoint)
          }
          if (codePoint <= 0xFFFF) { // BMP code point
            codeUnits.push(codePoint)
          } else { // Astral code point; split in surrogate halves
            // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
            codePoint -= 0x10000
            highSurrogate = (codePoint >> 10) + 0xD800
            lowSurrogate = (codePoint % 0x400) + 0xDC00
            codeUnits.push(highSurrogate, lowSurrogate)
          }
          if (index + 1 === length || codeUnits.length > MAX_SIZE) {
            result += stringFromCharCode.apply(null, codeUnits)
            codeUnits.length = 0
          }
        }
        return result
      }
      /* istanbul ignore next */
      if (Object.defineProperty) {
        Object.defineProperty(String, 'fromCodePoint', {
          value: fromCodePoint,
          configurable: true,
          writable: true
        })
      } else {
        String.fromCodePoint = fromCodePoint
      }
    }())
  }
})(typeof exports === 'undefined' ? this.sax = {} : exports)

}).call(this)}).call(this,require("buffer").Buffer)

},{"buffer":3,"stream":11,"string_decoder":27}],11:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// 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.

module.exports = Stream;

var EE = require('events').EventEmitter;
var inherits = require('inherits');

inherits(Stream, EE);
Stream.Readable = require('readable-stream/lib/_stream_readable.js');
Stream.Writable = require('readable-stream/lib/_stream_writable.js');
Stream.Duplex = require('readable-stream/lib/_stream_duplex.js');
Stream.Transform = require('readable-stream/lib/_stream_transform.js');
Stream.PassThrough = require('readable-stream/lib/_stream_passthrough.js');
Stream.finished = require('readable-stream/lib/internal/streams/end-of-stream.js')
Stream.pipeline = require('readable-stream/lib/internal/streams/pipeline.js')

// Backwards-compat with node 0.4.x
Stream.Stream = Stream;



// old-style streams.  Note that the pipe method (the only relevant
// part of this class) is overridden in the Readable class.

function Stream() {
  EE.call(this);
}

Stream.prototype.pipe = function(dest, options) {
  var source = this;

  function ondata(chunk) {
    if (dest.writable) {
      if (false === dest.write(chunk) && source.pause) {
        source.pause();
      }
    }
  }

  source.on('data', ondata);

  function ondrain() {
    if (source.readable && source.resume) {
      source.resume();
    }
  }

  dest.on('drain', ondrain);

  // If the 'end' option is not supplied, dest.end() will be called when
  // source gets the 'end' or 'close' events.  Only dest.end() once.
  if (!dest._isStdio && (!options || options.end !== false)) {
    source.on('end', onend);
    source.on('close', onclose);
  }

  var didOnEnd = false;
  function onend() {
    if (didOnEnd) return;
    didOnEnd = true;

    dest.end();
  }


  function onclose() {
    if (didOnEnd) return;
    didOnEnd = true;

    if (typeof dest.destroy === 'function') dest.destroy();
  }

  // don't leave dangling pipes when there are errors.
  function onerror(er) {
    cleanup();
    if (EE.listenerCount(this, 'error') === 0) {
      throw er; // Unhandled stream error in pipe.
    }
  }

  source.on('error', onerror);
  dest.on('error', onerror);

  // remove all the event listeners that were added.
  function cleanup() {
    source.removeListener('data', ondata);
    dest.removeListener('drain', ondrain);

    source.removeListener('end', onend);
    source.removeListener('close', onclose);

    source.removeListener('error', onerror);
    dest.removeListener('error', onerror);

    source.removeListener('end', cleanup);
    source.removeListener('close', cleanup);

    dest.removeListener('close', cleanup);
  }

  source.on('end', cleanup);
  source.on('close', cleanup);

  dest.on('close', cleanup);

  dest.emit('pipe', source);

  // Allow for unix-like usage: A.pipe(B).pipe(C)
  return dest;
};

},{"events":5,"inherits":12,"readable-stream/lib/_stream_duplex.js":14,"readable-stream/lib/_stream_passthrough.js":15,"readable-stream/lib/_stream_readable.js":16,"readable-stream/lib/_stream_transform.js":17,"readable-stream/lib/_stream_writable.js":18,"readable-stream/lib/internal/streams/end-of-stream.js":22,"readable-stream/lib/internal/streams/pipeline.js":24}],12:[function(require,module,exports){
if (typeof Object.create === 'function') {
  // implementation from standard node.js 'util' module
  module.exports = function inherits(ctor, superCtor) {
    if (superCtor) {
      ctor.super_ = superCtor
      ctor.prototype = Object.create(superCtor.prototype, {
        constructor: {
          value: ctor,
          enumerable: false,
          writable: true,
          configurable: true
        }
      })
    }
  };
} else {
  // old school shim for old browsers
  module.exports = function inherits(ctor, superCtor) {
    if (superCtor) {
      ctor.super_ = superCtor
      var TempCtor = function () {}
      TempCtor.prototype = superCtor.prototype
      ctor.prototype = new TempCtor()
      ctor.prototype.constructor = ctor
    }
  }
}

},{}],13:[function(require,module,exports){
'use strict';

function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }

var codes = {};

function createErrorType(code, message, Base) {
  if (!Base) {
    Base = Error;
  }

  function getMessage(arg1, arg2, arg3) {
    if (typeof message === 'string') {
      return message;
    } else {
      return message(arg1, arg2, arg3);
    }
  }

  var NodeError =
  /*#__PURE__*/
  function (_Base) {
    _inheritsLoose(NodeError, _Base);

    function NodeError(arg1, arg2, arg3) {
      return _Base.call(this, getMessage(arg1, arg2, arg3)) || this;
    }

    return NodeError;
  }(Base);

  NodeError.prototype.name = Base.name;
  NodeError.prototype.code = code;
  codes[code] = NodeError;
} // https://github.com/nodejs/node/blob/v10.8.0/lib/internal/errors.js


function oneOf(expected, thing) {
  if (Array.isArray(expected)) {
    var len = expected.length;
    expected = expected.map(function (i) {
      return String(i);
    });

    if (len > 2) {
      return "one of ".concat(thing, " ").concat(expected.slice(0, len - 1).join(', '), ", or ") + expected[len - 1];
    } else if (len === 2) {
      return "one of ".concat(thing, " ").concat(expected[0], " or ").concat(expected[1]);
    } else {
      return "of ".concat(thing, " ").concat(expected[0]);
    }
  } else {
    return "of ".concat(thing, " ").concat(String(expected));
  }
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/startsWith


function startsWith(str, search, pos) {
  return str.substr(!pos || pos < 0 ? 0 : +pos, search.length) === search;
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/endsWith


function endsWith(str, search, this_len) {
  if (this_len === undefined || this_len > str.length) {
    this_len = str.length;
  }

  return str.substring(this_len - search.length, this_len) === search;
} // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/includes


function includes(str, search, start) {
  if (typeof start !== 'number') {
    start = 0;
  }

  if (start + search.length > str.length) {
    return false;
  } else {
    return str.indexOf(search, start) !== -1;
  }
}

createErrorType('ERR_INVALID_OPT_VALUE', function (name, value) {
  return 'The value "' + value + '" is invalid for option "' + name + '"';
}, TypeError);
createErrorType('ERR_INVALID_ARG_TYPE', function (name, expected, actual) {
  // determiner: 'must be' or 'must not be'
  var determiner;

  if (typeof expected === 'string' && startsWith(expected, 'not ')) {
    determiner = 'must not be';
    expected = expected.replace(/^not /, '');
  } else {
    determiner = 'must be';
  }

  var msg;

  if (endsWith(name, ' argument')) {
    // For cases like 'first argument'
    msg = "The ".concat(name, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
  } else {
    var type = includes(name, '.') ? 'property' : 'argument';
    msg = "The \"".concat(name, "\" ").concat(type, " ").concat(determiner, " ").concat(oneOf(expected, 'type'));
  }

  msg += ". Received type ".concat(typeof actual);
  return msg;
}, TypeError);
createErrorType('ERR_STREAM_PUSH_AFTER_EOF', 'stream.push() after EOF');
createErrorType('ERR_METHOD_NOT_IMPLEMENTED', function (name) {
  return 'The ' + name + ' method is not implemented';
});
createErrorType('ERR_STREAM_PREMATURE_CLOSE', 'Premature close');
createErrorType('ERR_STREAM_DESTROYED', function (name) {
  return 'Cannot call ' + name + ' after a stream was destroyed';
});
createErrorType('ERR_MULTIPLE_CALLBACK', 'Callback called multiple times');
createErrorType('ERR_STREAM_CANNOT_PIPE', 'Cannot pipe, not readable');
createErrorType('ERR_STREAM_WRITE_AFTER_END', 'write after end');
createErrorType('ERR_STREAM_NULL_VALUES', 'May not write null values to stream', TypeError);
createErrorType('ERR_UNKNOWN_ENCODING', function (arg) {
  return 'Unknown encoding: ' + arg;
}, TypeError);
createErrorType('ERR_STREAM_UNSHIFT_AFTER_END_EVENT', 'stream.unshift() after end event');
module.exports.codes = codes;

},{}],14:[function(require,module,exports){
(function (process){(function (){
// Copyright Joyent, Inc. and other Node contributors.
//
// 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.
// a duplex stream is just a stream that is both readable and writable.
// Since JS doesn't have multiple prototypal inheritance, this class
// prototypally inherits from Readable, and then parasitically from
// Writable.
'use strict';
/*<replacement>*/

var objectKeys = Object.keys || function (obj) {
  var keys = [];

  for (var key in obj) {
    keys.push(key);
  }

  return keys;
};
/*</replacement>*/


module.exports = Duplex;

var Readable = require('./_stream_readable');

var Writable = require('./_stream_writable');

require('inherits')(Duplex, Readable);

{
  // Allow the keys array to be GC'ed.
  var keys = objectKeys(Writable.prototype);

  for (var v = 0; v < keys.length; v++) {
    var method = keys[v];
    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];
  }
}

function Duplex(options) {
  if (!(this instanceof Duplex)) return new Duplex(options);
  Readable.call(this, options);
  Writable.call(this, options);
  this.allowHalfOpen = true;

  if (options) {
    if (options.readable === false) this.readable = false;
    if (options.writable === false) this.writable = false;

    if (options.allowHalfOpen === false) {
      this.allowHalfOpen = false;
      this.once('end', onend);
    }
  }
}

Object.defineProperty(Duplex.prototype, 'writableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState.highWaterMark;
  }
});
Object.defineProperty(Duplex.prototype, 'writableBuffer', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState && this._writableState.getBuffer();
  }
});
Object.defineProperty(Duplex.prototype, 'writableLength', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState.length;
  }
}); // the no-half-open enforcer

function onend() {
  // If the writable side ended, then we're ok.
  if (this._writableState.ended) return; // no more data can be written.
  // But allow more writes to happen in this tick.

  process.nextTick(onEndNT, this);
}

function onEndNT(self) {
  self.end();
}

Object.defineProperty(Duplex.prototype, 'destroyed', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    if (this._readableState === undefined || this._writableState === undefined) {
      return false;
    }

    return this._readableState.destroyed && this._writableState.destroyed;
  },
  set: function set(value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (this._readableState === undefined || this._writableState === undefined) {
      return;
    } // backward compatibility, the user is explicitly
    // managing destroyed


    this._readableState.destroyed = value;
    this._writableState.destroyed = value;
  }
});
}).call(this)}).call(this,require('_process'))

},{"./_stream_readable":16,"./_stream_writable":18,"_process":8,"inherits":12}],15:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// 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.
// a passthrough stream.
// basically just the most minimal sort of Transform stream.
// Every written chunk gets output as-is.
'use strict';

module.exports = PassThrough;

var Transform = require('./_stream_transform');

require('inherits')(PassThrough, Transform);

function PassThrough(options) {
  if (!(this instanceof PassThrough)) return new PassThrough(options);
  Transform.call(this, options);
}

PassThrough.prototype._transform = function (chunk, encoding, cb) {
  cb(null, chunk);
};
},{"./_stream_transform":17,"inherits":12}],16:[function(require,module,exports){
(function (process,global){(function (){
// Copyright Joyent, Inc. and other Node contributors.
//
// 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.
'use strict';

module.exports = Readable;
/*<replacement>*/

var Duplex;
/*</replacement>*/

Readable.ReadableState = ReadableState;
/*<replacement>*/

var EE = require('events').EventEmitter;

var EElistenerCount = function EElistenerCount(emitter, type) {
  return emitter.listeners(type).length;
};
/*</replacement>*/

/*<replacement>*/


var Stream = require('./internal/streams/stream');
/*</replacement>*/


var Buffer = require('buffer').Buffer;

var OurUint8Array = global.Uint8Array || function () {};

function _uint8ArrayToBuffer(chunk) {
  return Buffer.from(chunk);
}

function _isUint8Array(obj) {
  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}
/*<replacement>*/


var debugUtil = require('util');

var debug;

if (debugUtil && debugUtil.debuglog) {
  debug = debugUtil.debuglog('stream');
} else {
  debug = function debug() {};
}
/*</replacement>*/


var BufferList = require('./internal/streams/buffer_list');

var destroyImpl = require('./internal/streams/destroy');

var _require = require('./internal/streams/state'),
    getHighWaterMark = _require.getHighWaterMark;

var _require$codes = require('../errors').codes,
    ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
    ERR_STREAM_PUSH_AFTER_EOF = _require$codes.ERR_STREAM_PUSH_AFTER_EOF,
    ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
    ERR_STREAM_UNSHIFT_AFTER_END_EVENT = _require$codes.ERR_STREAM_UNSHIFT_AFTER_END_EVENT; // Lazy loaded to improve the startup performance.


var StringDecoder;
var createReadableStreamAsyncIterator;
var from;

require('inherits')(Readable, Stream);

var errorOrDestroy = destroyImpl.errorOrDestroy;
var kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];

function prependListener(emitter, event, fn) {
  // Sadly this is not cacheable as some libraries bundle their own
  // event emitter implementation with them.
  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn); // This is a hack to make sure that our error handler is attached before any
  // userland ones.  NEVER DO THIS. This is here only because this code needs
  // to continue to work with older versions of Node.js that do not include
  // the prependListener() method. The goal is to eventually remove this hack.

  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (Array.isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];
}

function ReadableState(options, stream, isDuplex) {
  Duplex = Duplex || require('./_stream_duplex');
  options = options || {}; // Duplex streams are both readable and writable, but share
  // the same options object.
  // However, some cases require setting options to different
  // values for the readable and the writable sides of the duplex stream.
  // These options can be provided separately as readableXXX and writableXXX.

  if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; // object stream flag. Used to make read(n) ignore n and to
  // make all the buffer merging and length checks go away

  this.objectMode = !!options.objectMode;
  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode; // the point at which it stops calling _read() to fill the buffer
  // Note: 0 is a valid value, means "don't call _read preemptively ever"

  this.highWaterMark = getHighWaterMark(this, options, 'readableHighWaterMark', isDuplex); // A linked list is used to store data chunks instead of an array because the
  // linked list can remove elements from the beginning faster than
  // array.shift()

  this.buffer = new BufferList();
  this.length = 0;
  this.pipes = null;
  this.pipesCount = 0;
  this.flowing = null;
  this.ended = false;
  this.endEmitted = false;
  this.reading = false; // a flag to be able to tell if the event 'readable'/'data' is emitted
  // immediately, or on a later tick.  We set this to true at first, because
  // any actions that shouldn't happen until "later" should generally also
  // not happen before the first read call.

  this.sync = true; // whenever we return null, then we set a flag to say
  // that we're awaiting a 'readable' event emission.

  this.needReadable = false;
  this.emittedReadable = false;
  this.readableListening = false;
  this.resumeScheduled = false;
  this.paused = true; // Should close be emitted on destroy. Defaults to true.

  this.emitClose = options.emitClose !== false; // Should .destroy() be called after 'end' (and potentially 'finish')

  this.autoDestroy = !!options.autoDestroy; // has it been destroyed

  this.destroyed = false; // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.

  this.defaultEncoding = options.defaultEncoding || 'utf8'; // the number of writers that are awaiting a drain event in .pipe()s

  this.awaitDrain = 0; // if true, a maybeReadMore has been scheduled

  this.readingMore = false;
  this.decoder = null;
  this.encoding = null;

  if (options.encoding) {
    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
    this.decoder = new StringDecoder(options.encoding);
    this.encoding = options.encoding;
  }
}

function Readable(options) {
  Duplex = Duplex || require('./_stream_duplex');
  if (!(this instanceof Readable)) return new Readable(options); // Checking for a Stream.Duplex instance is faster here instead of inside
  // the ReadableState constructor, at least with V8 6.5

  var isDuplex = this instanceof Duplex;
  this._readableState = new ReadableState(options, this, isDuplex); // legacy

  this.readable = true;

  if (options) {
    if (typeof options.read === 'function') this._read = options.read;
    if (typeof options.destroy === 'function') this._destroy = options.destroy;
  }

  Stream.call(this);
}

Object.defineProperty(Readable.prototype, 'destroyed', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    if (this._readableState === undefined) {
      return false;
    }

    return this._readableState.destroyed;
  },
  set: function set(value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (!this._readableState) {
      return;
    } // backward compatibility, the user is explicitly
    // managing destroyed


    this._readableState.destroyed = value;
  }
});
Readable.prototype.destroy = destroyImpl.destroy;
Readable.prototype._undestroy = destroyImpl.undestroy;

Readable.prototype._destroy = function (err, cb) {
  cb(err);
}; // Manually shove something into the read() buffer.
// This returns true if the highWaterMark has not been hit yet,
// similar to how Writable.write() returns true if you should
// write() some more.


Readable.prototype.push = function (chunk, encoding) {
  var state = this._readableState;
  var skipChunkCheck;

  if (!state.objectMode) {
    if (typeof chunk === 'string') {
      encoding = encoding || state.defaultEncoding;

      if (encoding !== state.encoding) {
        chunk = Buffer.from(chunk, encoding);
        encoding = '';
      }

      skipChunkCheck = true;
    }
  } else {
    skipChunkCheck = true;
  }

  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);
}; // Unshift should *always* be something directly out of read()


Readable.prototype.unshift = function (chunk) {
  return readableAddChunk(this, chunk, null, true, false);
};

function readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {
  debug('readableAddChunk', chunk);
  var state = stream._readableState;

  if (chunk === null) {
    state.reading = false;
    onEofChunk(stream, state);
  } else {
    var er;
    if (!skipChunkCheck) er = chunkInvalid(state, chunk);

    if (er) {
      errorOrDestroy(stream, er);
    } else if (state.objectMode || chunk && chunk.length > 0) {
      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {
        chunk = _uint8ArrayToBuffer(chunk);
      }

      if (addToFront) {
        if (state.endEmitted) errorOrDestroy(stream, new ERR_STREAM_UNSHIFT_AFTER_END_EVENT());else addChunk(stream, state, chunk, true);
      } else if (state.ended) {
        errorOrDestroy(stream, new ERR_STREAM_PUSH_AFTER_EOF());
      } else if (state.destroyed) {
        return false;
      } else {
        state.reading = false;

        if (state.decoder && !encoding) {
          chunk = state.decoder.write(chunk);
          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);
        } else {
          addChunk(stream, state, chunk, false);
        }
      }
    } else if (!addToFront) {
      state.reading = false;
      maybeReadMore(stream, state);
    }
  } // We can push more data if we are below the highWaterMark.
  // Also, if we have no data yet, we can stand some more bytes.
  // This is to work around cases where hwm=0, such as the repl.


  return !state.ended && (state.length < state.highWaterMark || state.length === 0);
}

function addChunk(stream, state, chunk, addToFront) {
  if (state.flowing && state.length === 0 && !state.sync) {
    state.awaitDrain = 0;
    stream.emit('data', chunk);
  } else {
    // update the buffer info.
    state.length += state.objectMode ? 1 : chunk.length;
    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);
    if (state.needReadable) emitReadable(stream);
  }

  maybeReadMore(stream, state);
}

function chunkInvalid(state, chunk) {
  var er;

  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {
    er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer', 'Uint8Array'], chunk);
  }

  return er;
}

Readable.prototype.isPaused = function () {
  return this._readableState.flowing === false;
}; // backwards compatibility.


Readable.prototype.setEncoding = function (enc) {
  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;
  var decoder = new StringDecoder(enc);
  this._readableState.decoder = decoder; // If setEncoding(null), decoder.encoding equals utf8

  this._readableState.encoding = this._readableState.decoder.encoding; // Iterate over current buffer to convert already stored Buffers:

  var p = this._readableState.buffer.head;
  var content = '';

  while (p !== null) {
    content += decoder.write(p.data);
    p = p.next;
  }

  this._readableState.buffer.clear();

  if (content !== '') this._readableState.buffer.push(content);
  this._readableState.length = content.length;
  return this;
}; // Don't raise the hwm > 1GB


var MAX_HWM = 0x40000000;

function computeNewHighWaterMark(n) {
  if (n >= MAX_HWM) {
    // TODO(ronag): Throw ERR_VALUE_OUT_OF_RANGE.
    n = MAX_HWM;
  } else {
    // Get the next highest power of 2 to prevent increasing hwm excessively in
    // tiny amounts
    n--;
    n |= n >>> 1;
    n |= n >>> 2;
    n |= n >>> 4;
    n |= n >>> 8;
    n |= n >>> 16;
    n++;
  }

  return n;
} // This function is designed to be inlinable, so please take care when making
// changes to the function body.


function howMuchToRead(n, state) {
  if (n <= 0 || state.length === 0 && state.ended) return 0;
  if (state.objectMode) return 1;

  if (n !== n) {
    // Only flow one buffer at a time
    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;
  } // If we're asking for more than the current hwm, then raise the hwm.


  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);
  if (n <= state.length) return n; // Don't have enough

  if (!state.ended) {
    state.needReadable = true;
    return 0;
  }

  return state.length;
} // you can override either this method, or the async _read(n) below.


Readable.prototype.read = function (n) {
  debug('read', n);
  n = parseInt(n, 10);
  var state = this._readableState;
  var nOrig = n;
  if (n !== 0) state.emittedReadable = false; // if we're doing read(0) to trigger a readable event, but we
  // already have a bunch of data in the buffer, then just trigger
  // the 'readable' event and move on.

  if (n === 0 && state.needReadable && ((state.highWaterMark !== 0 ? state.length >= state.highWaterMark : state.length > 0) || state.ended)) {
    debug('read: emitReadable', state.length, state.ended);
    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);
    return null;
  }

  n = howMuchToRead(n, state); // if we've ended, and we're now clear, then finish it up.

  if (n === 0 && state.ended) {
    if (state.length === 0) endReadable(this);
    return null;
  } // All the actual chunk generation logic needs to be
  // *below* the call to _read.  The reason is that in certain
  // synthetic stream cases, such as passthrough streams, _read
  // may be a completely synchronous operation which may change
  // the state of the read buffer, providing enough data when
  // before there was *not* enough.
  //
  // So, the steps are:
  // 1. Figure out what the state of things will be after we do
  // a read from the buffer.
  //
  // 2. If that resulting state will trigger a _read, then call _read.
  // Note that this may be asynchronous, or synchronous.  Yes, it is
  // deeply ugly to write APIs this way, but that still doesn't mean
  // that the Readable class should behave improperly, as streams are
  // designed to be sync/async agnostic.
  // Take note if the _read call is sync or async (ie, if the read call
  // has returned yet), so that we know whether or not it's safe to emit
  // 'readable' etc.
  //
  // 3. Actually pull the requested chunks out of the buffer and return.
  // if we need a readable event, then we need to do some reading.


  var doRead = state.needReadable;
  debug('need readable', doRead); // if we currently have less than the highWaterMark, then also read some

  if (state.length === 0 || state.length - n < state.highWaterMark) {
    doRead = true;
    debug('length less than watermark', doRead);
  } // however, if we've ended, then there's no point, and if we're already
  // reading, then it's unnecessary.


  if (state.ended || state.reading) {
    doRead = false;
    debug('reading or ended', doRead);
  } else if (doRead) {
    debug('do read');
    state.reading = true;
    state.sync = true; // if the length is currently zero, then we *need* a readable event.

    if (state.length === 0) state.needReadable = true; // call internal read method

    this._read(state.highWaterMark);

    state.sync = false; // If _read pushed data synchronously, then `reading` will be false,
    // and we need to re-evaluate how much data we can return to the user.

    if (!state.reading) n = howMuchToRead(nOrig, state);
  }

  var ret;
  if (n > 0) ret = fromList(n, state);else ret = null;

  if (ret === null) {
    state.needReadable = state.length <= state.highWaterMark;
    n = 0;
  } else {
    state.length -= n;
    state.awaitDrain = 0;
  }

  if (state.length === 0) {
    // If we have nothing in the buffer, then we want to know
    // as soon as we *do* get something into the buffer.
    if (!state.ended) state.needReadable = true; // If we tried to read() past the EOF, then emit end on the next tick.

    if (nOrig !== n && state.ended) endReadable(this);
  }

  if (ret !== null) this.emit('data', ret);
  return ret;
};

function onEofChunk(stream, state) {
  debug('onEofChunk');
  if (state.ended) return;

  if (state.decoder) {
    var chunk = state.decoder.end();

    if (chunk && chunk.length) {
      state.buffer.push(chunk);
      state.length += state.objectMode ? 1 : chunk.length;
    }
  }

  state.ended = true;

  if (state.sync) {
    // if we are sync, wait until next tick to emit the data.
    // Otherwise we risk emitting data in the flow()
    // the readable code triggers during a read() call
    emitReadable(stream);
  } else {
    // emit 'readable' now to make sure it gets picked up.
    state.needReadable = false;

    if (!state.emittedReadable) {
      state.emittedReadable = true;
      emitReadable_(stream);
    }
  }
} // Don't emit readable right away in sync mode, because this can trigger
// another read() call => stack overflow.  This way, it might trigger
// a nextTick recursion warning, but that's not so bad.


function emitReadable(stream) {
  var state = stream._readableState;
  debug('emitReadable', state.needReadable, state.emittedReadable);
  state.needReadable = false;

  if (!state.emittedReadable) {
    debug('emitReadable', state.flowing);
    state.emittedReadable = true;
    process.nextTick(emitReadable_, stream);
  }
}

function emitReadable_(stream) {
  var state = stream._readableState;
  debug('emitReadable_', state.destroyed, state.length, state.ended);

  if (!state.destroyed && (state.length || state.ended)) {
    stream.emit('readable');
    state.emittedReadable = false;
  } // The stream needs another readable event if
  // 1. It is not flowing, as the flow mechanism will take
  //    care of it.
  // 2. It is not ended.
  // 3. It is below the highWaterMark, so we can schedule
  //    another readable later.


  state.needReadable = !state.flowing && !state.ended && state.length <= state.highWaterMark;
  flow(stream);
} // at this point, the user has presumably seen the 'readable' event,
// and called read() to consume some data.  that may have triggered
// in turn another _read(n) call, in which case reading = true if
// it's in progress.
// However, if we're not ended, or reading, and the length < hwm,
// then go ahead and try to read some more preemptively.


function maybeReadMore(stream, state) {
  if (!state.readingMore) {
    state.readingMore = true;
    process.nextTick(maybeReadMore_, stream, state);
  }
}

function maybeReadMore_(stream, state) {
  // Attempt to read more data if we should.
  //
  // The conditions for reading more data are (one of):
  // - Not enough data buffered (state.length < state.highWaterMark). The loop
  //   is responsible for filling the buffer with enough data if such data
  //   is available. If highWaterMark is 0 and we are not in the flowing mode
  //   we should _not_ attempt to buffer any extra data. We'll get more data
  //   when the stream consumer calls read() instead.
  // - No data in the buffer, and the stream is in flowing mode. In this mode
  //   the loop below is responsible for ensuring read() is called. Failing to
  //   call read here would abort the flow and there's no other mechanism for
  //   continuing the flow if the stream consumer has just subscribed to the
  //   'data' event.
  //
  // In addition to the above conditions to keep reading data, the following
  // conditions prevent the data from being read:
  // - The stream has ended (state.ended).
  // - There is already a pending 'read' operation (state.reading). This is a
  //   case where the the stream has called the implementation defined _read()
  //   method, but they are processing the call asynchronously and have _not_
  //   called push() with new data. In this case we skip performing more
  //   read()s. The execution ends in this method again after the _read() ends
  //   up calling push() with more data.
  while (!state.reading && !state.ended && (state.length < state.highWaterMark || state.flowing && state.length === 0)) {
    var len = state.length;
    debug('maybeReadMore read 0');
    stream.read(0);
    if (len === state.length) // didn't get any data, stop spinning.
      break;
  }

  state.readingMore = false;
} // abstract method.  to be overridden in specific implementation classes.
// call cb(er, data) where data is <= n in length.
// for virtual (non-string, non-buffer) streams, "length" is somewhat
// arbitrary, and perhaps not very meaningful.


Readable.prototype._read = function (n) {
  errorOrDestroy(this, new ERR_METHOD_NOT_IMPLEMENTED('_read()'));
};

Readable.prototype.pipe = function (dest, pipeOpts) {
  var src = this;
  var state = this._readableState;

  switch (state.pipesCount) {
    case 0:
      state.pipes = dest;
      break;

    case 1:
      state.pipes = [state.pipes, dest];
      break;

    default:
      state.pipes.push(dest);
      break;
  }

  state.pipesCount += 1;
  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);
  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;
  var endFn = doEnd ? onend : unpipe;
  if (state.endEmitted) process.nextTick(endFn);else src.once('end', endFn);
  dest.on('unpipe', onunpipe);

  function onunpipe(readable, unpipeInfo) {
    debug('onunpipe');

    if (readable === src) {
      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {
        unpipeInfo.hasUnpiped = true;
        cleanup();
      }
    }
  }

  function onend() {
    debug('onend');
    dest.end();
  } // when the dest drains, it reduces the awaitDrain counter
  // on the source.  This would be more elegant with a .once()
  // handler in flow(), but adding and removing repeatedly is
  // too slow.


  var ondrain = pipeOnDrain(src);
  dest.on('drain', ondrain);
  var cleanedUp = false;

  function cleanup() {
    debug('cleanup'); // cleanup event handlers once the pipe is broken

    dest.removeListener('close', onclose);
    dest.removeListener('finish', onfinish);
    dest.removeListener('drain', ondrain);
    dest.removeListener('error', onerror);
    dest.removeListener('unpipe', onunpipe);
    src.removeListener('end', onend);
    src.removeListener('end', unpipe);
    src.removeListener('data', ondata);
    cleanedUp = true; // if the reader is waiting for a drain event from this
    // specific writer, then it would cause it to never start
    // flowing again.
    // So, if this is awaiting a drain, then we just call it now.
    // If we don't know, then assume that we are waiting for one.

    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();
  }

  src.on('data', ondata);

  function ondata(chunk) {
    debug('ondata');
    var ret = dest.write(chunk);
    debug('dest.write', ret);

    if (ret === false) {
      // If the user unpiped during `dest.write()`, it is possible
      // to get stuck in a permanently paused state if that write
      // also returned false.
      // => Check whether `dest` is still a piping destination.
      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {
        debug('false write response, pause', state.awaitDrain);
        state.awaitDrain++;
      }

      src.pause();
    }
  } // if the dest has an error, then stop piping into it.
  // however, don't suppress the throwing behavior for this.


  function onerror(er) {
    debug('onerror', er);
    unpipe();
    dest.removeListener('error', onerror);
    if (EElistenerCount(dest, 'error') === 0) errorOrDestroy(dest, er);
  } // Make sure our error handler is attached before userland ones.


  prependListener(dest, 'error', onerror); // Both close and finish should trigger unpipe, but only once.

  function onclose() {
    dest.removeListener('finish', onfinish);
    unpipe();
  }

  dest.once('close', onclose);

  function onfinish() {
    debug('onfinish');
    dest.removeListener('close', onclose);
    unpipe();
  }

  dest.once('finish', onfinish);

  function unpipe() {
    debug('unpipe');
    src.unpipe(dest);
  } // tell the dest that it's being piped to


  dest.emit('pipe', src); // start the flow if it hasn't been started already.

  if (!state.flowing) {
    debug('pipe resume');
    src.resume();
  }

  return dest;
};

function pipeOnDrain(src) {
  return function pipeOnDrainFunctionResult() {
    var state = src._readableState;
    debug('pipeOnDrain', state.awaitDrain);
    if (state.awaitDrain) state.awaitDrain--;

    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {
      state.flowing = true;
      flow(src);
    }
  };
}

Readable.prototype.unpipe = function (dest) {
  var state = this._readableState;
  var unpipeInfo = {
    hasUnpiped: false
  }; // if we're not piping anywhere, then do nothing.

  if (state.pipesCount === 0) return this; // just one destination.  most common case.

  if (state.pipesCount === 1) {
    // passed in one, but it's not the right one.
    if (dest && dest !== state.pipes) return this;
    if (!dest) dest = state.pipes; // got a match.

    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;
    if (dest) dest.emit('unpipe', this, unpipeInfo);
    return this;
  } // slow case. multiple pipe destinations.


  if (!dest) {
    // remove all.
    var dests = state.pipes;
    var len = state.pipesCount;
    state.pipes = null;
    state.pipesCount = 0;
    state.flowing = false;

    for (var i = 0; i < len; i++) {
      dests[i].emit('unpipe', this, {
        hasUnpiped: false
      });
    }

    return this;
  } // try to find the right one.


  var index = indexOf(state.pipes, dest);
  if (index === -1) return this;
  state.pipes.splice(index, 1);
  state.pipesCount -= 1;
  if (state.pipesCount === 1) state.pipes = state.pipes[0];
  dest.emit('unpipe', this, unpipeInfo);
  return this;
}; // set up data events if they are asked for
// Ensure readable listeners eventually get something


Readable.prototype.on = function (ev, fn) {
  var res = Stream.prototype.on.call(this, ev, fn);
  var state = this._readableState;

  if (ev === 'data') {
    // update readableListening so that resume() may be a no-op
    // a few lines down. This is needed to support once('readable').
    state.readableListening = this.listenerCount('readable') > 0; // Try start flowing on next tick if stream isn't explicitly paused

    if (state.flowing !== false) this.resume();
  } else if (ev === 'readable') {
    if (!state.endEmitted && !state.readableListening) {
      state.readableListening = state.needReadable = true;
      state.flowing = false;
      state.emittedReadable = false;
      debug('on readable', state.length, state.reading);

      if (state.length) {
        emitReadable(this);
      } else if (!state.reading) {
        process.nextTick(nReadingNextTick, this);
      }
    }
  }

  return res;
};

Readable.prototype.addListener = Readable.prototype.on;

Readable.prototype.removeListener = function (ev, fn) {
  var res = Stream.prototype.removeListener.call(this, ev, fn);

  if (ev === 'readable') {
    // We need to check if there is someone still listening to
    // readable and reset the state. However this needs to happen
    // after readable has been emitted but before I/O (nextTick) to
    // support once('readable', fn) cycles. This means that calling
    // resume within the same tick will have no
    // effect.
    process.nextTick(updateReadableListening, this);
  }

  return res;
};

Readable.prototype.removeAllListeners = function (ev) {
  var res = Stream.prototype.removeAllListeners.apply(this, arguments);

  if (ev === 'readable' || ev === undefined) {
    // We need to check if there is someone still listening to
    // readable and reset the state. However this needs to happen
    // after readable has been emitted but before I/O (nextTick) to
    // support once('readable', fn) cycles. This means that calling
    // resume within the same tick will have no
    // effect.
    process.nextTick(updateReadableListening, this);
  }

  return res;
};

function updateReadableListening(self) {
  var state = self._readableState;
  state.readableListening = self.listenerCount('readable') > 0;

  if (state.resumeScheduled && !state.paused) {
    // flowing needs to be set to true now, otherwise
    // the upcoming resume will not flow.
    state.flowing = true; // crude way to check if we should resume
  } else if (self.listenerCount('data') > 0) {
    self.resume();
  }
}

function nReadingNextTick(self) {
  debug('readable nexttick read 0');
  self.read(0);
} // pause() and resume() are remnants of the legacy readable stream API
// If the user uses them, then switch into old mode.


Readable.prototype.resume = function () {
  var state = this._readableState;

  if (!state.flowing) {
    debug('resume'); // we flow only if there is no one listening
    // for readable, but we still have to call
    // resume()

    state.flowing = !state.readableListening;
    resume(this, state);
  }

  state.paused = false;
  return this;
};

function resume(stream, state) {
  if (!state.resumeScheduled) {
    state.resumeScheduled = true;
    process.nextTick(resume_, stream, state);
  }
}

function resume_(stream, state) {
  debug('resume', state.reading);

  if (!state.reading) {
    stream.read(0);
  }

  state.resumeScheduled = false;
  stream.emit('resume');
  flow(stream);
  if (state.flowing && !state.reading) stream.read(0);
}

Readable.prototype.pause = function () {
  debug('call pause flowing=%j', this._readableState.flowing);

  if (this._readableState.flowing !== false) {
    debug('pause');
    this._readableState.flowing = false;
    this.emit('pause');
  }

  this._readableState.paused = true;
  return this;
};

function flow(stream) {
  var state = stream._readableState;
  debug('flow', state.flowing);

  while (state.flowing && stream.read() !== null) {
    ;
  }
} // wrap an old-style stream as the async data source.
// This is *not* part of the readable stream interface.
// It is an ugly unfortunate mess of history.


Readable.prototype.wrap = function (stream) {
  var _this = this;

  var state = this._readableState;
  var paused = false;
  stream.on('end', function () {
    debug('wrapped end');

    if (state.decoder && !state.ended) {
      var chunk = state.decoder.end();
      if (chunk && chunk.length) _this.push(chunk);
    }

    _this.push(null);
  });
  stream.on('data', function (chunk) {
    debug('wrapped data');
    if (state.decoder) chunk = state.decoder.write(chunk); // don't skip over falsy values in objectMode

    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;

    var ret = _this.push(chunk);

    if (!ret) {
      paused = true;
      stream.pause();
    }
  }); // proxy all the other methods.
  // important when wrapping filters and duplexes.

  for (var i in stream) {
    if (this[i] === undefined && typeof stream[i] === 'function') {
      this[i] = function methodWrap(method) {
        return function methodWrapReturnFunction() {
          return stream[method].apply(stream, arguments);
        };
      }(i);
    }
  } // proxy certain important events.


  for (var n = 0; n < kProxyEvents.length; n++) {
    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));
  } // when we try to consume some more bytes, simply unpause the
  // underlying stream.


  this._read = function (n) {
    debug('wrapped _read', n);

    if (paused) {
      paused = false;
      stream.resume();
    }
  };

  return this;
};

if (typeof Symbol === 'function') {
  Readable.prototype[Symbol.asyncIterator] = function () {
    if (createReadableStreamAsyncIterator === undefined) {
      createReadableStreamAsyncIterator = require('./internal/streams/async_iterator');
    }

    return createReadableStreamAsyncIterator(this);
  };
}

Object.defineProperty(Readable.prototype, 'readableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._readableState.highWaterMark;
  }
});
Object.defineProperty(Readable.prototype, 'readableBuffer', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._readableState && this._readableState.buffer;
  }
});
Object.defineProperty(Readable.prototype, 'readableFlowing', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._readableState.flowing;
  },
  set: function set(state) {
    if (this._readableState) {
      this._readableState.flowing = state;
    }
  }
}); // exposed for testing purposes only.

Readable._fromList = fromList;
Object.defineProperty(Readable.prototype, 'readableLength', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._readableState.length;
  }
}); // Pluck off n bytes from an array of buffers.
// Length is the combined lengths of all the buffers in the list.
// This function is designed to be inlinable, so please take care when making
// changes to the function body.

function fromList(n, state) {
  // nothing buffered
  if (state.length === 0) return null;
  var ret;
  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {
    // read it all, truncate the list
    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.first();else ret = state.buffer.concat(state.length);
    state.buffer.clear();
  } else {
    // read part of list
    ret = state.buffer.consume(n, state.decoder);
  }
  return ret;
}

function endReadable(stream) {
  var state = stream._readableState;
  debug('endReadable', state.endEmitted);

  if (!state.endEmitted) {
    state.ended = true;
    process.nextTick(endReadableNT, state, stream);
  }
}

function endReadableNT(state, stream) {
  debug('endReadableNT', state.endEmitted, state.length); // Check that we didn't get one last unshift.

  if (!state.endEmitted && state.length === 0) {
    state.endEmitted = true;
    stream.readable = false;
    stream.emit('end');

    if (state.autoDestroy) {
      // In case of duplex streams we need a way to detect
      // if the writable side is ready for autoDestroy as well
      var wState = stream._writableState;

      if (!wState || wState.autoDestroy && wState.finished) {
        stream.destroy();
      }
    }
  }
}

if (typeof Symbol === 'function') {
  Readable.from = function (iterable, opts) {
    if (from === undefined) {
      from = require('./internal/streams/from');
    }

    return from(Readable, iterable, opts);
  };
}

function indexOf(xs, x) {
  for (var i = 0, l = xs.length; i < l; i++) {
    if (xs[i] === x) return i;
  }

  return -1;
}
}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{"../errors":13,"./_stream_duplex":14,"./internal/streams/async_iterator":19,"./internal/streams/buffer_list":20,"./internal/streams/destroy":21,"./internal/streams/from":23,"./internal/streams/state":25,"./internal/streams/stream":26,"_process":8,"buffer":3,"events":5,"inherits":12,"string_decoder/":27,"util":2}],17:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// 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.
// a transform stream is a readable/writable stream where you do
// something with the data.  Sometimes it's called a "filter",
// but that's not a great name for it, since that implies a thing where
// some bits pass through, and others are simply ignored.  (That would
// be a valid example of a transform, of course.)
//
// While the output is causally related to the input, it's not a
// necessarily symmetric or synchronous transformation.  For example,
// a zlib stream might take multiple plain-text writes(), and then
// emit a single compressed chunk some time in the future.
//
// Here's how this works:
//
// The Transform stream has all the aspects of the readable and writable
// stream classes.  When you write(chunk), that calls _write(chunk,cb)
// internally, and returns false if there's a lot of pending writes
// buffered up.  When you call read(), that calls _read(n) until
// there's enough pending readable data buffered up.
//
// In a transform stream, the written data is placed in a buffer.  When
// _read(n) is called, it transforms the queued up data, calling the
// buffered _write cb's as it consumes chunks.  If consuming a single
// written chunk would result in multiple output chunks, then the first
// outputted bit calls the readcb, and subsequent chunks just go into
// the read buffer, and will cause it to emit 'readable' if necessary.
//
// This way, back-pressure is actually determined by the reading side,
// since _read has to be called to start processing a new chunk.  However,
// a pathological inflate type of transform can cause excessive buffering
// here.  For example, imagine a stream where every byte of input is
// interpreted as an integer from 0-255, and then results in that many
// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in
// 1kb of data being output.  In this case, you could write a very small
// amount of input, and end up with a very large amount of output.  In
// such a pathological inflating mechanism, there'd be no way to tell
// the system to stop doing the transform.  A single 4MB write could
// cause the system to run out of memory.
//
// However, even in such a pathological case, only a single written chunk
// would be consumed, and then the rest would wait (un-transformed) until
// the results of the previous transformed chunk were consumed.
'use strict';

module.exports = Transform;

var _require$codes = require('../errors').codes,
    ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
    ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
    ERR_TRANSFORM_ALREADY_TRANSFORMING = _require$codes.ERR_TRANSFORM_ALREADY_TRANSFORMING,
    ERR_TRANSFORM_WITH_LENGTH_0 = _require$codes.ERR_TRANSFORM_WITH_LENGTH_0;

var Duplex = require('./_stream_duplex');

require('inherits')(Transform, Duplex);

function afterTransform(er, data) {
  var ts = this._transformState;
  ts.transforming = false;
  var cb = ts.writecb;

  if (cb === null) {
    return this.emit('error', new ERR_MULTIPLE_CALLBACK());
  }

  ts.writechunk = null;
  ts.writecb = null;
  if (data != null) // single equals check for both `null` and `undefined`
    this.push(data);
  cb(er);
  var rs = this._readableState;
  rs.reading = false;

  if (rs.needReadable || rs.length < rs.highWaterMark) {
    this._read(rs.highWaterMark);
  }
}

function Transform(options) {
  if (!(this instanceof Transform)) return new Transform(options);
  Duplex.call(this, options);
  this._transformState = {
    afterTransform: afterTransform.bind(this),
    needTransform: false,
    transforming: false,
    writecb: null,
    writechunk: null,
    writeencoding: null
  }; // start out asking for a readable event once data is transformed.

  this._readableState.needReadable = true; // we have implemented the _read method, and done the other things
  // that Readable wants before the first _read call, so unset the
  // sync guard flag.

  this._readableState.sync = false;

  if (options) {
    if (typeof options.transform === 'function') this._transform = options.transform;
    if (typeof options.flush === 'function') this._flush = options.flush;
  } // When the writable side finishes, then flush out anything remaining.


  this.on('prefinish', prefinish);
}

function prefinish() {
  var _this = this;

  if (typeof this._flush === 'function' && !this._readableState.destroyed) {
    this._flush(function (er, data) {
      done(_this, er, data);
    });
  } else {
    done(this, null, null);
  }
}

Transform.prototype.push = function (chunk, encoding) {
  this._transformState.needTransform = false;
  return Duplex.prototype.push.call(this, chunk, encoding);
}; // This is the part where you do stuff!
// override this function in implementation classes.
// 'chunk' is an input chunk.
//
// Call `push(newChunk)` to pass along transformed output
// to the readable side.  You may call 'push' zero or more times.
//
// Call `cb(err)` when you are done with this chunk.  If you pass
// an error, then that'll put the hurt on the whole operation.  If you
// never call cb(), then you'll never get another chunk.


Transform.prototype._transform = function (chunk, encoding, cb) {
  cb(new ERR_METHOD_NOT_IMPLEMENTED('_transform()'));
};

Transform.prototype._write = function (chunk, encoding, cb) {
  var ts = this._transformState;
  ts.writecb = cb;
  ts.writechunk = chunk;
  ts.writeencoding = encoding;

  if (!ts.transforming) {
    var rs = this._readableState;
    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);
  }
}; // Doesn't matter what the args are here.
// _transform does all the work.
// That we got here means that the readable side wants more data.


Transform.prototype._read = function (n) {
  var ts = this._transformState;

  if (ts.writechunk !== null && !ts.transforming) {
    ts.transforming = true;

    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);
  } else {
    // mark that we need a transform, so that any data that comes in
    // will get processed, now that we've asked for it.
    ts.needTransform = true;
  }
};

Transform.prototype._destroy = function (err, cb) {
  Duplex.prototype._destroy.call(this, err, function (err2) {
    cb(err2);
  });
};

function done(stream, er, data) {
  if (er) return stream.emit('error', er);
  if (data != null) // single equals check for both `null` and `undefined`
    stream.push(data); // TODO(BridgeAR): Write a test for these two error cases
  // if there's nothing in the write buffer, then that means
  // that nothing more will ever be provided

  if (stream._writableState.length) throw new ERR_TRANSFORM_WITH_LENGTH_0();
  if (stream._transformState.transforming) throw new ERR_TRANSFORM_ALREADY_TRANSFORMING();
  return stream.push(null);
}
},{"../errors":13,"./_stream_duplex":14,"inherits":12}],18:[function(require,module,exports){
(function (process,global){(function (){
// Copyright Joyent, Inc. and other Node contributors.
//
// 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.
// A bit simpler than readable streams.
// Implement an async ._write(chunk, encoding, cb), and it'll handle all
// the drain event emission and buffering.
'use strict';

module.exports = Writable;
/* <replacement> */

function WriteReq(chunk, encoding, cb) {
  this.chunk = chunk;
  this.encoding = encoding;
  this.callback = cb;
  this.next = null;
} // It seems a linked list but it is not
// there will be only 2 of these for each stream


function CorkedRequest(state) {
  var _this = this;

  this.next = null;
  this.entry = null;

  this.finish = function () {
    onCorkedFinish(_this, state);
  };
}
/* </replacement> */

/*<replacement>*/


var Duplex;
/*</replacement>*/

Writable.WritableState = WritableState;
/*<replacement>*/

var internalUtil = {
  deprecate: require('util-deprecate')
};
/*</replacement>*/

/*<replacement>*/

var Stream = require('./internal/streams/stream');
/*</replacement>*/


var Buffer = require('buffer').Buffer;

var OurUint8Array = global.Uint8Array || function () {};

function _uint8ArrayToBuffer(chunk) {
  return Buffer.from(chunk);
}

function _isUint8Array(obj) {
  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;
}

var destroyImpl = require('./internal/streams/destroy');

var _require = require('./internal/streams/state'),
    getHighWaterMark = _require.getHighWaterMark;

var _require$codes = require('../errors').codes,
    ERR_INVALID_ARG_TYPE = _require$codes.ERR_INVALID_ARG_TYPE,
    ERR_METHOD_NOT_IMPLEMENTED = _require$codes.ERR_METHOD_NOT_IMPLEMENTED,
    ERR_MULTIPLE_CALLBACK = _require$codes.ERR_MULTIPLE_CALLBACK,
    ERR_STREAM_CANNOT_PIPE = _require$codes.ERR_STREAM_CANNOT_PIPE,
    ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED,
    ERR_STREAM_NULL_VALUES = _require$codes.ERR_STREAM_NULL_VALUES,
    ERR_STREAM_WRITE_AFTER_END = _require$codes.ERR_STREAM_WRITE_AFTER_END,
    ERR_UNKNOWN_ENCODING = _require$codes.ERR_UNKNOWN_ENCODING;

var errorOrDestroy = destroyImpl.errorOrDestroy;

require('inherits')(Writable, Stream);

function nop() {}

function WritableState(options, stream, isDuplex) {
  Duplex = Duplex || require('./_stream_duplex');
  options = options || {}; // Duplex streams are both readable and writable, but share
  // the same options object.
  // However, some cases require setting options to different
  // values for the readable and the writable sides of the duplex stream,
  // e.g. options.readableObjectMode vs. options.writableObjectMode, etc.

  if (typeof isDuplex !== 'boolean') isDuplex = stream instanceof Duplex; // object stream flag to indicate whether or not this stream
  // contains buffers or objects.

  this.objectMode = !!options.objectMode;
  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode; // the point at which write() starts returning false
  // Note: 0 is a valid value, means that we always return false if
  // the entire buffer is not flushed immediately on write()

  this.highWaterMark = getHighWaterMark(this, options, 'writableHighWaterMark', isDuplex); // if _final has been called

  this.finalCalled = false; // drain event flag.

  this.needDrain = false; // at the start of calling end()

  this.ending = false; // when end() has been called, and returned

  this.ended = false; // when 'finish' is emitted

  this.finished = false; // has it been destroyed

  this.destroyed = false; // should we decode strings into buffers before passing to _write?
  // this is here so that some node-core streams can optimize string
  // handling at a lower level.

  var noDecode = options.decodeStrings === false;
  this.decodeStrings = !noDecode; // Crypto is kind of old and crusty.  Historically, its default string
  // encoding is 'binary' so we have to make this configurable.
  // Everything else in the universe uses 'utf8', though.

  this.defaultEncoding = options.defaultEncoding || 'utf8'; // not an actual buffer we keep track of, but a measurement
  // of how much we're waiting to get pushed to some underlying
  // socket or file.

  this.length = 0; // a flag to see when we're in the middle of a write.

  this.writing = false; // when true all writes will be buffered until .uncork() call

  this.corked = 0; // a flag to be able to tell if the onwrite cb is called immediately,
  // or on a later tick.  We set this to true at first, because any
  // actions that shouldn't happen until "later" should generally also
  // not happen before the first write call.

  this.sync = true; // a flag to know if we're processing previously buffered items, which
  // may call the _write() callback in the same tick, so that we don't
  // end up in an overlapped onwrite situation.

  this.bufferProcessing = false; // the callback that's passed to _write(chunk,cb)

  this.onwrite = function (er) {
    onwrite(stream, er);
  }; // the callback that the user supplies to write(chunk,encoding,cb)


  this.writecb = null; // the amount that is being written when _write is called.

  this.writelen = 0;
  this.bufferedRequest = null;
  this.lastBufferedRequest = null; // number of pending user-supplied write callbacks
  // this must be 0 before 'finish' can be emitted

  this.pendingcb = 0; // emit prefinish if the only thing we're waiting for is _write cbs
  // This is relevant for synchronous Transform streams

  this.prefinished = false; // True if the error was already emitted and should not be thrown again

  this.errorEmitted = false; // Should close be emitted on destroy. Defaults to true.

  this.emitClose = options.emitClose !== false; // Should .destroy() be called after 'finish' (and potentially 'end')

  this.autoDestroy = !!options.autoDestroy; // count buffered requests

  this.bufferedRequestCount = 0; // allocate the first CorkedRequest, there is always
  // one allocated and free to use, and we maintain at most two

  this.corkedRequestsFree = new CorkedRequest(this);
}

WritableState.prototype.getBuffer = function getBuffer() {
  var current = this.bufferedRequest;
  var out = [];

  while (current) {
    out.push(current);
    current = current.next;
  }

  return out;
};

(function () {
  try {
    Object.defineProperty(WritableState.prototype, 'buffer', {
      get: internalUtil.deprecate(function writableStateBufferGetter() {
        return this.getBuffer();
      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')
    });
  } catch (_) {}
})(); // Test _writableState for inheritance to account for Duplex streams,
// whose prototype chain only points to Readable.


var realHasInstance;

if (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {
  realHasInstance = Function.prototype[Symbol.hasInstance];
  Object.defineProperty(Writable, Symbol.hasInstance, {
    value: function value(object) {
      if (realHasInstance.call(this, object)) return true;
      if (this !== Writable) return false;
      return object && object._writableState instanceof WritableState;
    }
  });
} else {
  realHasInstance = function realHasInstance(object) {
    return object instanceof this;
  };
}

function Writable(options) {
  Duplex = Duplex || require('./_stream_duplex'); // Writable ctor is applied to Duplexes, too.
  // `realHasInstance` is necessary because using plain `instanceof`
  // would return false, as no `_writableState` property is attached.
  // Trying to use the custom `instanceof` for Writable here will also break the
  // Node.js LazyTransform implementation, which has a non-trivial getter for
  // `_writableState` that would lead to infinite recursion.
  // Checking for a Stream.Duplex instance is faster here instead of inside
  // the WritableState constructor, at least with V8 6.5

  var isDuplex = this instanceof Duplex;
  if (!isDuplex && !realHasInstance.call(Writable, this)) return new Writable(options);
  this._writableState = new WritableState(options, this, isDuplex); // legacy.

  this.writable = true;

  if (options) {
    if (typeof options.write === 'function') this._write = options.write;
    if (typeof options.writev === 'function') this._writev = options.writev;
    if (typeof options.destroy === 'function') this._destroy = options.destroy;
    if (typeof options.final === 'function') this._final = options.final;
  }

  Stream.call(this);
} // Otherwise people can pipe Writable streams, which is just wrong.


Writable.prototype.pipe = function () {
  errorOrDestroy(this, new ERR_STREAM_CANNOT_PIPE());
};

function writeAfterEnd(stream, cb) {
  var er = new ERR_STREAM_WRITE_AFTER_END(); // TODO: defer error events consistently everywhere, not just the cb

  errorOrDestroy(stream, er);
  process.nextTick(cb, er);
} // Checks that a user-supplied chunk is valid, especially for the particular
// mode the stream is in. Currently this means that `null` is never accepted
// and undefined/non-string values are only allowed in object mode.


function validChunk(stream, state, chunk, cb) {
  var er;

  if (chunk === null) {
    er = new ERR_STREAM_NULL_VALUES();
  } else if (typeof chunk !== 'string' && !state.objectMode) {
    er = new ERR_INVALID_ARG_TYPE('chunk', ['string', 'Buffer'], chunk);
  }

  if (er) {
    errorOrDestroy(stream, er);
    process.nextTick(cb, er);
    return false;
  }

  return true;
}

Writable.prototype.write = function (chunk, encoding, cb) {
  var state = this._writableState;
  var ret = false;

  var isBuf = !state.objectMode && _isUint8Array(chunk);

  if (isBuf && !Buffer.isBuffer(chunk)) {
    chunk = _uint8ArrayToBuffer(chunk);
  }

  if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;
  if (typeof cb !== 'function') cb = nop;
  if (state.ending) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {
    state.pendingcb++;
    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);
  }
  return ret;
};

Writable.prototype.cork = function () {
  this._writableState.corked++;
};

Writable.prototype.uncork = function () {
  var state = this._writableState;

  if (state.corked) {
    state.corked--;
    if (!state.writing && !state.corked && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);
  }
};

Writable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {
  // node::ParseEncoding() requires lower case.
  if (typeof encoding === 'string') encoding = encoding.toLowerCase();
  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new ERR_UNKNOWN_ENCODING(encoding);
  this._writableState.defaultEncoding = encoding;
  return this;
};

Object.defineProperty(Writable.prototype, 'writableBuffer', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState && this._writableState.getBuffer();
  }
});

function decodeChunk(state, chunk, encoding) {
  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {
    chunk = Buffer.from(chunk, encoding);
  }

  return chunk;
}

Object.defineProperty(Writable.prototype, 'writableHighWaterMark', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState.highWaterMark;
  }
}); // if we're already writing something, then just put this
// in the queue, and wait our turn.  Otherwise, call _write
// If we return false, then we need a drain event, so set that flag.

function writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {
  if (!isBuf) {
    var newChunk = decodeChunk(state, chunk, encoding);

    if (chunk !== newChunk) {
      isBuf = true;
      encoding = 'buffer';
      chunk = newChunk;
    }
  }

  var len = state.objectMode ? 1 : chunk.length;
  state.length += len;
  var ret = state.length < state.highWaterMark; // we must ensure that previous needDrain will not be reset to false.

  if (!ret) state.needDrain = true;

  if (state.writing || state.corked) {
    var last = state.lastBufferedRequest;
    state.lastBufferedRequest = {
      chunk: chunk,
      encoding: encoding,
      isBuf: isBuf,
      callback: cb,
      next: null
    };

    if (last) {
      last.next = state.lastBufferedRequest;
    } else {
      state.bufferedRequest = state.lastBufferedRequest;
    }

    state.bufferedRequestCount += 1;
  } else {
    doWrite(stream, state, false, len, chunk, encoding, cb);
  }

  return ret;
}

function doWrite(stream, state, writev, len, chunk, encoding, cb) {
  state.writelen = len;
  state.writecb = cb;
  state.writing = true;
  state.sync = true;
  if (state.destroyed) state.onwrite(new ERR_STREAM_DESTROYED('write'));else if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);
  state.sync = false;
}

function onwriteError(stream, state, sync, er, cb) {
  --state.pendingcb;

  if (sync) {
    // defer the callback if we are being called synchronously
    // to avoid piling up things on the stack
    process.nextTick(cb, er); // this can emit finish, and it will always happen
    // after error

    process.nextTick(finishMaybe, stream, state);
    stream._writableState.errorEmitted = true;
    errorOrDestroy(stream, er);
  } else {
    // the caller expect this to happen before if
    // it is async
    cb(er);
    stream._writableState.errorEmitted = true;
    errorOrDestroy(stream, er); // this can emit finish, but finish must
    // always follow error

    finishMaybe(stream, state);
  }
}

function onwriteStateUpdate(state) {
  state.writing = false;
  state.writecb = null;
  state.length -= state.writelen;
  state.writelen = 0;
}

function onwrite(stream, er) {
  var state = stream._writableState;
  var sync = state.sync;
  var cb = state.writecb;
  if (typeof cb !== 'function') throw new ERR_MULTIPLE_CALLBACK();
  onwriteStateUpdate(state);
  if (er) onwriteError(stream, state, sync, er, cb);else {
    // Check if we're actually ready to finish, but don't emit yet
    var finished = needFinish(state) || stream.destroyed;

    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {
      clearBuffer(stream, state);
    }

    if (sync) {
      process.nextTick(afterWrite, stream, state, finished, cb);
    } else {
      afterWrite(stream, state, finished, cb);
    }
  }
}

function afterWrite(stream, state, finished, cb) {
  if (!finished) onwriteDrain(stream, state);
  state.pendingcb--;
  cb();
  finishMaybe(stream, state);
} // Must force callback to be called on nextTick, so that we don't
// emit 'drain' before the write() consumer gets the 'false' return
// value, and has a chance to attach a 'drain' listener.


function onwriteDrain(stream, state) {
  if (state.length === 0 && state.needDrain) {
    state.needDrain = false;
    stream.emit('drain');
  }
} // if there's something in the buffer waiting, then process it


function clearBuffer(stream, state) {
  state.bufferProcessing = true;
  var entry = state.bufferedRequest;

  if (stream._writev && entry && entry.next) {
    // Fast case, write everything using _writev()
    var l = state.bufferedRequestCount;
    var buffer = new Array(l);
    var holder = state.corkedRequestsFree;
    holder.entry = entry;
    var count = 0;
    var allBuffers = true;

    while (entry) {
      buffer[count] = entry;
      if (!entry.isBuf) allBuffers = false;
      entry = entry.next;
      count += 1;
    }

    buffer.allBuffers = allBuffers;
    doWrite(stream, state, true, state.length, buffer, '', holder.finish); // doWrite is almost always async, defer these to save a bit of time
    // as the hot path ends with doWrite

    state.pendingcb++;
    state.lastBufferedRequest = null;

    if (holder.next) {
      state.corkedRequestsFree = holder.next;
      holder.next = null;
    } else {
      state.corkedRequestsFree = new CorkedRequest(state);
    }

    state.bufferedRequestCount = 0;
  } else {
    // Slow case, write chunks one-by-one
    while (entry) {
      var chunk = entry.chunk;
      var encoding = entry.encoding;
      var cb = entry.callback;
      var len = state.objectMode ? 1 : chunk.length;
      doWrite(stream, state, false, len, chunk, encoding, cb);
      entry = entry.next;
      state.bufferedRequestCount--; // if we didn't call the onwrite immediately, then
      // it means that we need to wait until it does.
      // also, that means that the chunk and cb are currently
      // being processed, so move the buffer counter past them.

      if (state.writing) {
        break;
      }
    }

    if (entry === null) state.lastBufferedRequest = null;
  }

  state.bufferedRequest = entry;
  state.bufferProcessing = false;
}

Writable.prototype._write = function (chunk, encoding, cb) {
  cb(new ERR_METHOD_NOT_IMPLEMENTED('_write()'));
};

Writable.prototype._writev = null;

Writable.prototype.end = function (chunk, encoding, cb) {
  var state = this._writableState;

  if (typeof chunk === 'function') {
    cb = chunk;
    chunk = null;
    encoding = null;
  } else if (typeof encoding === 'function') {
    cb = encoding;
    encoding = null;
  }

  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding); // .end() fully uncorks

  if (state.corked) {
    state.corked = 1;
    this.uncork();
  } // ignore unnecessary end() calls.


  if (!state.ending) endWritable(this, state, cb);
  return this;
};

Object.defineProperty(Writable.prototype, 'writableLength', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    return this._writableState.length;
  }
});

function needFinish(state) {
  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;
}

function callFinal(stream, state) {
  stream._final(function (err) {
    state.pendingcb--;

    if (err) {
      errorOrDestroy(stream, err);
    }

    state.prefinished = true;
    stream.emit('prefinish');
    finishMaybe(stream, state);
  });
}

function prefinish(stream, state) {
  if (!state.prefinished && !state.finalCalled) {
    if (typeof stream._final === 'function' && !state.destroyed) {
      state.pendingcb++;
      state.finalCalled = true;
      process.nextTick(callFinal, stream, state);
    } else {
      state.prefinished = true;
      stream.emit('prefinish');
    }
  }
}

function finishMaybe(stream, state) {
  var need = needFinish(state);

  if (need) {
    prefinish(stream, state);

    if (state.pendingcb === 0) {
      state.finished = true;
      stream.emit('finish');

      if (state.autoDestroy) {
        // In case of duplex streams we need a way to detect
        // if the readable side is ready for autoDestroy as well
        var rState = stream._readableState;

        if (!rState || rState.autoDestroy && rState.endEmitted) {
          stream.destroy();
        }
      }
    }
  }

  return need;
}

function endWritable(stream, state, cb) {
  state.ending = true;
  finishMaybe(stream, state);

  if (cb) {
    if (state.finished) process.nextTick(cb);else stream.once('finish', cb);
  }

  state.ended = true;
  stream.writable = false;
}

function onCorkedFinish(corkReq, state, err) {
  var entry = corkReq.entry;
  corkReq.entry = null;

  while (entry) {
    var cb = entry.callback;
    state.pendingcb--;
    cb(err);
    entry = entry.next;
  } // reuse the free corkReq.


  state.corkedRequestsFree.next = corkReq;
}

Object.defineProperty(Writable.prototype, 'destroyed', {
  // making it explicit this property is not enumerable
  // because otherwise some prototype manipulation in
  // userland will fail
  enumerable: false,
  get: function get() {
    if (this._writableState === undefined) {
      return false;
    }

    return this._writableState.destroyed;
  },
  set: function set(value) {
    // we ignore the value if the stream
    // has not been initialized yet
    if (!this._writableState) {
      return;
    } // backward compatibility, the user is explicitly
    // managing destroyed


    this._writableState.destroyed = value;
  }
});
Writable.prototype.destroy = destroyImpl.destroy;
Writable.prototype._undestroy = destroyImpl.undestroy;

Writable.prototype._destroy = function (err, cb) {
  cb(err);
};
}).call(this)}).call(this,require('_process'),typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{"../errors":13,"./_stream_duplex":14,"./internal/streams/destroy":21,"./internal/streams/state":25,"./internal/streams/stream":26,"_process":8,"buffer":3,"inherits":12,"util-deprecate":28}],19:[function(require,module,exports){
(function (process){(function (){
'use strict';

var _Object$setPrototypeO;

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

var finished = require('./end-of-stream');

var kLastResolve = Symbol('lastResolve');
var kLastReject = Symbol('lastReject');
var kError = Symbol('error');
var kEnded = Symbol('ended');
var kLastPromise = Symbol('lastPromise');
var kHandlePromise = Symbol('handlePromise');
var kStream = Symbol('stream');

function createIterResult(value, done) {
  return {
    value: value,
    done: done
  };
}

function readAndResolve(iter) {
  var resolve = iter[kLastResolve];

  if (resolve !== null) {
    var data = iter[kStream].read(); // we defer if data is null
    // we can be expecting either 'end' or
    // 'error'

    if (data !== null) {
      iter[kLastPromise] = null;
      iter[kLastResolve] = null;
      iter[kLastReject] = null;
      resolve(createIterResult(data, false));
    }
  }
}

function onReadable(iter) {
  // we wait for the next tick, because it might
  // emit an error with process.nextTick
  process.nextTick(readAndResolve, iter);
}

function wrapForNext(lastPromise, iter) {
  return function (resolve, reject) {
    lastPromise.then(function () {
      if (iter[kEnded]) {
        resolve(createIterResult(undefined, true));
        return;
      }

      iter[kHandlePromise](resolve, reject);
    }, reject);
  };
}

var AsyncIteratorPrototype = Object.getPrototypeOf(function () {});
var ReadableStreamAsyncIteratorPrototype = Object.setPrototypeOf((_Object$setPrototypeO = {
  get stream() {
    return this[kStream];
  },

  next: function next() {
    var _this = this;

    // if we have detected an error in the meanwhile
    // reject straight away
    var error = this[kError];

    if (error !== null) {
      return Promise.reject(error);
    }

    if (this[kEnded]) {
      return Promise.resolve(createIterResult(undefined, true));
    }

    if (this[kStream].destroyed) {
      // We need to defer via nextTick because if .destroy(err) is
      // called, the error will be emitted via nextTick, and
      // we cannot guarantee that there is no error lingering around
      // waiting to be emitted.
      return new Promise(function (resolve, reject) {
        process.nextTick(function () {
          if (_this[kError]) {
            reject(_this[kError]);
          } else {
            resolve(createIterResult(undefined, true));
          }
        });
      });
    } // if we have multiple next() calls
    // we will wait for the previous Promise to finish
    // this logic is optimized to support for await loops,
    // where next() is only called once at a time


    var lastPromise = this[kLastPromise];
    var promise;

    if (lastPromise) {
      promise = new Promise(wrapForNext(lastPromise, this));
    } else {
      // fast path needed to support multiple this.push()
      // without triggering the next() queue
      var data = this[kStream].read();

      if (data !== null) {
        return Promise.resolve(createIterResult(data, false));
      }

      promise = new Promise(this[kHandlePromise]);
    }

    this[kLastPromise] = promise;
    return promise;
  }
}, _defineProperty(_Object$setPrototypeO, Symbol.asyncIterator, function () {
  return this;
}), _defineProperty(_Object$setPrototypeO, "return", function _return() {
  var _this2 = this;

  // destroy(err, cb) is a private API
  // we can guarantee we have that here, because we control the
  // Readable class this is attached to
  return new Promise(function (resolve, reject) {
    _this2[kStream].destroy(null, function (err) {
      if (err) {
        reject(err);
        return;
      }

      resolve(createIterResult(undefined, true));
    });
  });
}), _Object$setPrototypeO), AsyncIteratorPrototype);

var createReadableStreamAsyncIterator = function createReadableStreamAsyncIterator(stream) {
  var _Object$create;

  var iterator = Object.create(ReadableStreamAsyncIteratorPrototype, (_Object$create = {}, _defineProperty(_Object$create, kStream, {
    value: stream,
    writable: true
  }), _defineProperty(_Object$create, kLastResolve, {
    value: null,
    writable: true
  }), _defineProperty(_Object$create, kLastReject, {
    value: null,
    writable: true
  }), _defineProperty(_Object$create, kError, {
    value: null,
    writable: true
  }), _defineProperty(_Object$create, kEnded, {
    value: stream._readableState.endEmitted,
    writable: true
  }), _defineProperty(_Object$create, kHandlePromise, {
    value: function value(resolve, reject) {
      var data = iterator[kStream].read();

      if (data) {
        iterator[kLastPromise] = null;
        iterator[kLastResolve] = null;
        iterator[kLastReject] = null;
        resolve(createIterResult(data, false));
      } else {
        iterator[kLastResolve] = resolve;
        iterator[kLastReject] = reject;
      }
    },
    writable: true
  }), _Object$create));
  iterator[kLastPromise] = null;
  finished(stream, function (err) {
    if (err && err.code !== 'ERR_STREAM_PREMATURE_CLOSE') {
      var reject = iterator[kLastReject]; // reject if we are waiting for data in the Promise
      // returned by next() and store the error

      if (reject !== null) {
        iterator[kLastPromise] = null;
        iterator[kLastResolve] = null;
        iterator[kLastReject] = null;
        reject(err);
      }

      iterator[kError] = err;
      return;
    }

    var resolve = iterator[kLastResolve];

    if (resolve !== null) {
      iterator[kLastPromise] = null;
      iterator[kLastResolve] = null;
      iterator[kLastReject] = null;
      resolve(createIterResult(undefined, true));
    }

    iterator[kEnded] = true;
  });
  stream.on('readable', onReadable.bind(null, iterator));
  return iterator;
};

module.exports = createReadableStreamAsyncIterator;
}).call(this)}).call(this,require('_process'))

},{"./end-of-stream":22,"_process":8}],20:[function(require,module,exports){
'use strict';

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var _require = require('buffer'),
    Buffer = _require.Buffer;

var _require2 = require('util'),
    inspect = _require2.inspect;

var custom = inspect && inspect.custom || 'inspect';

function copyBuffer(src, target, offset) {
  Buffer.prototype.copy.call(src, target, offset);
}

module.exports =
/*#__PURE__*/
function () {
  function BufferList() {
    _classCallCheck(this, BufferList);

    this.head = null;
    this.tail = null;
    this.length = 0;
  }

  _createClass(BufferList, [{
    key: "push",
    value: function push(v) {
      var entry = {
        data: v,
        next: null
      };
      if (this.length > 0) this.tail.next = entry;else this.head = entry;
      this.tail = entry;
      ++this.length;
    }
  }, {
    key: "unshift",
    value: function unshift(v) {
      var entry = {
        data: v,
        next: this.head
      };
      if (this.length === 0) this.tail = entry;
      this.head = entry;
      ++this.length;
    }
  }, {
    key: "shift",
    value: function shift() {
      if (this.length === 0) return;
      var ret = this.head.data;
      if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;
      --this.length;
      return ret;
    }
  }, {
    key: "clear",
    value: function clear() {
      this.head = this.tail = null;
      this.length = 0;
    }
  }, {
    key: "join",
    value: function join(s) {
      if (this.length === 0) return '';
      var p = this.head;
      var ret = '' + p.data;

      while (p = p.next) {
        ret += s + p.data;
      }

      return ret;
    }
  }, {
    key: "concat",
    value: function concat(n) {
      if (this.length === 0) return Buffer.alloc(0);
      var ret = Buffer.allocUnsafe(n >>> 0);
      var p = this.head;
      var i = 0;

      while (p) {
        copyBuffer(p.data, ret, i);
        i += p.data.length;
        p = p.next;
      }

      return ret;
    } // Consumes a specified amount of bytes or characters from the buffered data.

  }, {
    key: "consume",
    value: function consume(n, hasStrings) {
      var ret;

      if (n < this.head.data.length) {
        // `slice` is the same for buffers and strings.
        ret = this.head.data.slice(0, n);
        this.head.data = this.head.data.slice(n);
      } else if (n === this.head.data.length) {
        // First chunk is a perfect match.
        ret = this.shift();
      } else {
        // Result spans more than one buffer.
        ret = hasStrings ? this._getString(n) : this._getBuffer(n);
      }

      return ret;
    }
  }, {
    key: "first",
    value: function first() {
      return this.head.data;
    } // Consumes a specified amount of characters from the buffered data.

  }, {
    key: "_getString",
    value: function _getString(n) {
      var p = this.head;
      var c = 1;
      var ret = p.data;
      n -= ret.length;

      while (p = p.next) {
        var str = p.data;
        var nb = n > str.length ? str.length : n;
        if (nb === str.length) ret += str;else ret += str.slice(0, n);
        n -= nb;

        if (n === 0) {
          if (nb === str.length) {
            ++c;
            if (p.next) this.head = p.next;else this.head = this.tail = null;
          } else {
            this.head = p;
            p.data = str.slice(nb);
          }

          break;
        }

        ++c;
      }

      this.length -= c;
      return ret;
    } // Consumes a specified amount of bytes from the buffered data.

  }, {
    key: "_getBuffer",
    value: function _getBuffer(n) {
      var ret = Buffer.allocUnsafe(n);
      var p = this.head;
      var c = 1;
      p.data.copy(ret);
      n -= p.data.length;

      while (p = p.next) {
        var buf = p.data;
        var nb = n > buf.length ? buf.length : n;
        buf.copy(ret, ret.length - n, 0, nb);
        n -= nb;

        if (n === 0) {
          if (nb === buf.length) {
            ++c;
            if (p.next) this.head = p.next;else this.head = this.tail = null;
          } else {
            this.head = p;
            p.data = buf.slice(nb);
          }

          break;
        }

        ++c;
      }

      this.length -= c;
      return ret;
    } // Make sure the linked list only shows the minimal necessary information.

  }, {
    key: custom,
    value: function value(_, options) {
      return inspect(this, _objectSpread({}, options, {
        // Only inspect one level.
        depth: 0,
        // It should not recurse.
        customInspect: false
      }));
    }
  }]);

  return BufferList;
}();
},{"buffer":3,"util":2}],21:[function(require,module,exports){
(function (process){(function (){
'use strict'; // undocumented cb() API, needed for core, not for public API

function destroy(err, cb) {
  var _this = this;

  var readableDestroyed = this._readableState && this._readableState.destroyed;
  var writableDestroyed = this._writableState && this._writableState.destroyed;

  if (readableDestroyed || writableDestroyed) {
    if (cb) {
      cb(err);
    } else if (err) {
      if (!this._writableState) {
        process.nextTick(emitErrorNT, this, err);
      } else if (!this._writableState.errorEmitted) {
        this._writableState.errorEmitted = true;
        process.nextTick(emitErrorNT, this, err);
      }
    }

    return this;
  } // we set destroyed to true before firing error callbacks in order
  // to make it re-entrance safe in case destroy() is called within callbacks


  if (this._readableState) {
    this._readableState.destroyed = true;
  } // if this is a duplex stream mark the writable part as destroyed as well


  if (this._writableState) {
    this._writableState.destroyed = true;
  }

  this._destroy(err || null, function (err) {
    if (!cb && err) {
      if (!_this._writableState) {
        process.nextTick(emitErrorAndCloseNT, _this, err);
      } else if (!_this._writableState.errorEmitted) {
        _this._writableState.errorEmitted = true;
        process.nextTick(emitErrorAndCloseNT, _this, err);
      } else {
        process.nextTick(emitCloseNT, _this);
      }
    } else if (cb) {
      process.nextTick(emitCloseNT, _this);
      cb(err);
    } else {
      process.nextTick(emitCloseNT, _this);
    }
  });

  return this;
}

function emitErrorAndCloseNT(self, err) {
  emitErrorNT(self, err);
  emitCloseNT(self);
}

function emitCloseNT(self) {
  if (self._writableState && !self._writableState.emitClose) return;
  if (self._readableState && !self._readableState.emitClose) return;
  self.emit('close');
}

function undestroy() {
  if (this._readableState) {
    this._readableState.destroyed = false;
    this._readableState.reading = false;
    this._readableState.ended = false;
    this._readableState.endEmitted = false;
  }

  if (this._writableState) {
    this._writableState.destroyed = false;
    this._writableState.ended = false;
    this._writableState.ending = false;
    this._writableState.finalCalled = false;
    this._writableState.prefinished = false;
    this._writableState.finished = false;
    this._writableState.errorEmitted = false;
  }
}

function emitErrorNT(self, err) {
  self.emit('error', err);
}

function errorOrDestroy(stream, err) {
  // We have tests that rely on errors being emitted
  // in the same tick, so changing this is semver major.
  // For now when you opt-in to autoDestroy we allow
  // the error to be emitted nextTick. In a future
  // semver major update we should change the default to this.
  var rState = stream._readableState;
  var wState = stream._writableState;
  if (rState && rState.autoDestroy || wState && wState.autoDestroy) stream.destroy(err);else stream.emit('error', err);
}

module.exports = {
  destroy: destroy,
  undestroy: undestroy,
  errorOrDestroy: errorOrDestroy
};
}).call(this)}).call(this,require('_process'))

},{"_process":8}],22:[function(require,module,exports){
// Ported from https://github.com/mafintosh/end-of-stream with
// permission from the author, Mathias Buus (@mafintosh).
'use strict';

var ERR_STREAM_PREMATURE_CLOSE = require('../../../errors').codes.ERR_STREAM_PREMATURE_CLOSE;

function once(callback) {
  var called = false;
  return function () {
    if (called) return;
    called = true;

    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
      args[_key] = arguments[_key];
    }

    callback.apply(this, args);
  };
}

function noop() {}

function isRequest(stream) {
  return stream.setHeader && typeof stream.abort === 'function';
}

function eos(stream, opts, callback) {
  if (typeof opts === 'function') return eos(stream, null, opts);
  if (!opts) opts = {};
  callback = once(callback || noop);
  var readable = opts.readable || opts.readable !== false && stream.readable;
  var writable = opts.writable || opts.writable !== false && stream.writable;

  var onlegacyfinish = function onlegacyfinish() {
    if (!stream.writable) onfinish();
  };

  var writableEnded = stream._writableState && stream._writableState.finished;

  var onfinish = function onfinish() {
    writable = false;
    writableEnded = true;
    if (!readable) callback.call(stream);
  };

  var readableEnded = stream._readableState && stream._readableState.endEmitted;

  var onend = function onend() {
    readable = false;
    readableEnded = true;
    if (!writable) callback.call(stream);
  };

  var onerror = function onerror(err) {
    callback.call(stream, err);
  };

  var onclose = function onclose() {
    var err;

    if (readable && !readableEnded) {
      if (!stream._readableState || !stream._readableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
      return callback.call(stream, err);
    }

    if (writable && !writableEnded) {
      if (!stream._writableState || !stream._writableState.ended) err = new ERR_STREAM_PREMATURE_CLOSE();
      return callback.call(stream, err);
    }
  };

  var onrequest = function onrequest() {
    stream.req.on('finish', onfinish);
  };

  if (isRequest(stream)) {
    stream.on('complete', onfinish);
    stream.on('abort', onclose);
    if (stream.req) onrequest();else stream.on('request', onrequest);
  } else if (writable && !stream._writableState) {
    // legacy streams
    stream.on('end', onlegacyfinish);
    stream.on('close', onlegacyfinish);
  }

  stream.on('end', onend);
  stream.on('finish', onfinish);
  if (opts.error !== false) stream.on('error', onerror);
  stream.on('close', onclose);
  return function () {
    stream.removeListener('complete', onfinish);
    stream.removeListener('abort', onclose);
    stream.removeListener('request', onrequest);
    if (stream.req) stream.req.removeListener('finish', onfinish);
    stream.removeListener('end', onlegacyfinish);
    stream.removeListener('close', onlegacyfinish);
    stream.removeListener('finish', onfinish);
    stream.removeListener('end', onend);
    stream.removeListener('error', onerror);
    stream.removeListener('close', onclose);
  };
}

module.exports = eos;
},{"../../../errors":13}],23:[function(require,module,exports){
module.exports = function () {
  throw new Error('Readable.from is not available in the browser')
};

},{}],24:[function(require,module,exports){
// Ported from https://github.com/mafintosh/pump with
// permission from the author, Mathias Buus (@mafintosh).
'use strict';

var eos;

function once(callback) {
  var called = false;
  return function () {
    if (called) return;
    called = true;
    callback.apply(void 0, arguments);
  };
}

var _require$codes = require('../../../errors').codes,
    ERR_MISSING_ARGS = _require$codes.ERR_MISSING_ARGS,
    ERR_STREAM_DESTROYED = _require$codes.ERR_STREAM_DESTROYED;

function noop(err) {
  // Rethrow the error if it exists to avoid swallowing it
  if (err) throw err;
}

function isRequest(stream) {
  return stream.setHeader && typeof stream.abort === 'function';
}

function destroyer(stream, reading, writing, callback) {
  callback = once(callback);
  var closed = false;
  stream.on('close', function () {
    closed = true;
  });
  if (eos === undefined) eos = require('./end-of-stream');
  eos(stream, {
    readable: reading,
    writable: writing
  }, function (err) {
    if (err) return callback(err);
    closed = true;
    callback();
  });
  var destroyed = false;
  return function (err) {
    if (closed) return;
    if (destroyed) return;
    destroyed = true; // request.destroy just do .end - .abort is what we want

    if (isRequest(stream)) return stream.abort();
    if (typeof stream.destroy === 'function') return stream.destroy();
    callback(err || new ERR_STREAM_DESTROYED('pipe'));
  };
}

function call(fn) {
  fn();
}

function pipe(from, to) {
  return from.pipe(to);
}

function popCallback(streams) {
  if (!streams.length) return noop;
  if (typeof streams[streams.length - 1] !== 'function') return noop;
  return streams.pop();
}

function pipeline() {
  for (var _len = arguments.length, streams = new Array(_len), _key = 0; _key < _len; _key++) {
    streams[_key] = arguments[_key];
  }

  var callback = popCallback(streams);
  if (Array.isArray(streams[0])) streams = streams[0];

  if (streams.length < 2) {
    throw new ERR_MISSING_ARGS('streams');
  }

  var error;
  var destroys = streams.map(function (stream, i) {
    var reading = i < streams.length - 1;
    var writing = i > 0;
    return destroyer(stream, reading, writing, function (err) {
      if (!error) error = err;
      if (err) destroys.forEach(call);
      if (reading) return;
      destroys.forEach(call);
      callback(error);
    });
  });
  return streams.reduce(pipe);
}

module.exports = pipeline;
},{"../../../errors":13,"./end-of-stream":22}],25:[function(require,module,exports){
'use strict';

var ERR_INVALID_OPT_VALUE = require('../../../errors').codes.ERR_INVALID_OPT_VALUE;

function highWaterMarkFrom(options, isDuplex, duplexKey) {
  return options.highWaterMark != null ? options.highWaterMark : isDuplex ? options[duplexKey] : null;
}

function getHighWaterMark(state, options, duplexKey, isDuplex) {
  var hwm = highWaterMarkFrom(options, isDuplex, duplexKey);

  if (hwm != null) {
    if (!(isFinite(hwm) && Math.floor(hwm) === hwm) || hwm < 0) {
      var name = isDuplex ? duplexKey : 'highWaterMark';
      throw new ERR_INVALID_OPT_VALUE(name, hwm);
    }

    return Math.floor(hwm);
  } // Default value


  return state.objectMode ? 16 : 16 * 1024;
}

module.exports = {
  getHighWaterMark: getHighWaterMark
};
},{"../../../errors":13}],26:[function(require,module,exports){
module.exports = require('events').EventEmitter;

},{"events":5}],27:[function(require,module,exports){
// Copyright Joyent, Inc. and other Node contributors.
//
// 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.

'use strict';

/*<replacement>*/

var Buffer = require('safe-buffer').Buffer;
/*</replacement>*/

var isEncoding = Buffer.isEncoding || function (encoding) {
  encoding = '' + encoding;
  switch (encoding && encoding.toLowerCase()) {
    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':
      return true;
    default:
      return false;
  }
};

function _normalizeEncoding(enc) {
  if (!enc) return 'utf8';
  var retried;
  while (true) {
    switch (enc) {
      case 'utf8':
      case 'utf-8':
        return 'utf8';
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return 'utf16le';
      case 'latin1':
      case 'binary':
        return 'latin1';
      case 'base64':
      case 'ascii':
      case 'hex':
        return enc;
      default:
        if (retried) return; // undefined
        enc = ('' + enc).toLowerCase();
        retried = true;
    }
  }
};

// Do not cache `Buffer.isEncoding` when checking encoding names as some
// modules monkey-patch it to support additional encodings
function normalizeEncoding(enc) {
  var nenc = _normalizeEncoding(enc);
  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);
  return nenc || enc;
}

// StringDecoder provides an interface for efficiently splitting a series of
// buffers into a series of JS strings without breaking apart multi-byte
// characters.
exports.StringDecoder = StringDecoder;
function StringDecoder(encoding) {
  this.encoding = normalizeEncoding(encoding);
  var nb;
  switch (this.encoding) {
    case 'utf16le':
      this.text = utf16Text;
      this.end = utf16End;
      nb = 4;
      break;
    case 'utf8':
      this.fillLast = utf8FillLast;
      nb = 4;
      break;
    case 'base64':
      this.text = base64Text;
      this.end = base64End;
      nb = 3;
      break;
    default:
      this.write = simpleWrite;
      this.end = simpleEnd;
      return;
  }
  this.lastNeed = 0;
  this.lastTotal = 0;
  this.lastChar = Buffer.allocUnsafe(nb);
}

StringDecoder.prototype.write = function (buf) {
  if (buf.length === 0) return '';
  var r;
  var i;
  if (this.lastNeed) {
    r = this.fillLast(buf);
    if (r === undefined) return '';
    i = this.lastNeed;
    this.lastNeed = 0;
  } else {
    i = 0;
  }
  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);
  return r || '';
};

StringDecoder.prototype.end = utf8End;

// Returns only complete characters in a Buffer
StringDecoder.prototype.text = utf8Text;

// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer
StringDecoder.prototype.fillLast = function (buf) {
  if (this.lastNeed <= buf.length) {
    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);
    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
  }
  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);
  this.lastNeed -= buf.length;
};

// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a
// continuation byte. If an invalid byte is detected, -2 is returned.
function utf8CheckByte(byte) {
  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;
  return byte >> 6 === 0x02 ? -1 : -2;
}

// Checks at most 3 bytes at the end of a Buffer in order to detect an
// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)
// needed to complete the UTF-8 character (if applicable) are returned.
function utf8CheckIncomplete(self, buf, i) {
  var j = buf.length - 1;
  if (j < i) return 0;
  var nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) self.lastNeed = nb - 1;
    return nb;
  }
  if (--j < i || nb === -2) return 0;
  nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) self.lastNeed = nb - 2;
    return nb;
  }
  if (--j < i || nb === -2) return 0;
  nb = utf8CheckByte(buf[j]);
  if (nb >= 0) {
    if (nb > 0) {
      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;
    }
    return nb;
  }
  return 0;
}

// Validates as many continuation bytes for a multi-byte UTF-8 character as
// needed or are available. If we see a non-continuation byte where we expect
// one, we "replace" the validated continuation bytes we've seen so far with
// a single UTF-8 replacement character ('\ufffd'), to match v8's UTF-8 decoding
// behavior. The continuation byte check is included three times in the case
// where all of the continuation bytes for a character exist in the same buffer.
// It is also done this way as a slight performance increase instead of using a
// loop.
function utf8CheckExtraBytes(self, buf, p) {
  if ((buf[0] & 0xC0) !== 0x80) {
    self.lastNeed = 0;
    return '\ufffd';
  }
  if (self.lastNeed > 1 && buf.length > 1) {
    if ((buf[1] & 0xC0) !== 0x80) {
      self.lastNeed = 1;
      return '\ufffd';
    }
    if (self.lastNeed > 2 && buf.length > 2) {
      if ((buf[2] & 0xC0) !== 0x80) {
        self.lastNeed = 2;
        return '\ufffd';
      }
    }
  }
}

// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.
function utf8FillLast(buf) {
  var p = this.lastTotal - this.lastNeed;
  var r = utf8CheckExtraBytes(this, buf, p);
  if (r !== undefined) return r;
  if (this.lastNeed <= buf.length) {
    buf.copy(this.lastChar, p, 0, this.lastNeed);
    return this.lastChar.toString(this.encoding, 0, this.lastTotal);
  }
  buf.copy(this.lastChar, p, 0, buf.length);
  this.lastNeed -= buf.length;
}

// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a
// partial character, the character's bytes are buffered until the required
// number of bytes are available.
function utf8Text(buf, i) {
  var total = utf8CheckIncomplete(this, buf, i);
  if (!this.lastNeed) return buf.toString('utf8', i);
  this.lastTotal = total;
  var end = buf.length - (total - this.lastNeed);
  buf.copy(this.lastChar, 0, end);
  return buf.toString('utf8', i, end);
}

// For UTF-8, a replacement character is added when ending on a partial
// character.
function utf8End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) return r + '\ufffd';
  return r;
}

// UTF-16LE typically needs two bytes per character, but even if we have an even
// number of bytes available, we need to check if we end on a leading/high
// surrogate. In that case, we need to wait for the next two bytes in order to
// decode the last character properly.
function utf16Text(buf, i) {
  if ((buf.length - i) % 2 === 0) {
    var r = buf.toString('utf16le', i);
    if (r) {
      var c = r.charCodeAt(r.length - 1);
      if (c >= 0xD800 && c <= 0xDBFF) {
        this.lastNeed = 2;
        this.lastTotal = 4;
        this.lastChar[0] = buf[buf.length - 2];
        this.lastChar[1] = buf[buf.length - 1];
        return r.slice(0, -1);
      }
    }
    return r;
  }
  this.lastNeed = 1;
  this.lastTotal = 2;
  this.lastChar[0] = buf[buf.length - 1];
  return buf.toString('utf16le', i, buf.length - 1);
}

// For UTF-16LE we do not explicitly append special replacement characters if we
// end on a partial character, we simply let v8 handle that.
function utf16End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) {
    var end = this.lastTotal - this.lastNeed;
    return r + this.lastChar.toString('utf16le', 0, end);
  }
  return r;
}

function base64Text(buf, i) {
  var n = (buf.length - i) % 3;
  if (n === 0) return buf.toString('base64', i);
  this.lastNeed = 3 - n;
  this.lastTotal = 3;
  if (n === 1) {
    this.lastChar[0] = buf[buf.length - 1];
  } else {
    this.lastChar[0] = buf[buf.length - 2];
    this.lastChar[1] = buf[buf.length - 1];
  }
  return buf.toString('base64', i, buf.length - n);
}

function base64End(buf) {
  var r = buf && buf.length ? this.write(buf) : '';
  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);
  return r;
}

// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)
function simpleWrite(buf) {
  return buf.toString(this.encoding);
}

function simpleEnd(buf) {
  return buf && buf.length ? this.write(buf) : '';
}
},{"safe-buffer":9}],28:[function(require,module,exports){
(function (global){(function (){

/**
 * Module exports.
 */

module.exports = deprecate;

/**
 * Mark that a method should not be used.
 * Returns a modified function which warns once by default.
 *
 * If `localStorage.noDeprecation = true` is set, then it is a no-op.
 *
 * If `localStorage.throwDeprecation = true` is set, then deprecated functions
 * will throw an Error when invoked.
 *
 * If `localStorage.traceDeprecation = true` is set, then deprecated functions
 * will invoke `console.trace()` instead of `console.error()`.
 *
 * @param {Function} fn - the function to deprecate
 * @param {String} msg - the string to print to the console when `fn` is invoked
 * @returns {Function} a new "deprecated" version of `fn`
 * @api public
 */

function deprecate (fn, msg) {
  if (config('noDeprecation')) {
    return fn;
  }

  var warned = false;
  function deprecated() {
    if (!warned) {
      if (config('throwDeprecation')) {
        throw new Error(msg);
      } else if (config('traceDeprecation')) {
        console.trace(msg);
      } else {
        console.warn(msg);
      }
      warned = true;
    }
    return fn.apply(this, arguments);
  }

  return deprecated;
}

/**
 * Checks `localStorage` for boolean values for the given `name`.
 *
 * @param {String} name
 * @returns {Boolean}
 * @api private
 */

function config (name) {
  // accessing global.localStorage can trigger a DOMException in sandboxed iframes
  try {
    if (!global.localStorage) return false;
  } catch (_) {
    return false;
  }
  var val = global.localStorage[name];
  if (null == val) return false;
  return String(val).toLowerCase() === 'true';
}

}).call(this)}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})

},{}],29:[function(require,module,exports){
module.exports = {

  isArray: function(value) {
    if (Array.isArray) {
      return Array.isArray(value);
    }
    // fallback for older browsers like  IE 8
    return Object.prototype.toString.call( value ) === '[object Array]';
  }

};

},{}],30:[function(require,module,exports){
/*jslint node:true */

var xml2js = require('./xml2js');
var xml2json = require('./xml2json');
var js2xml = require('./js2xml');
var json2xml = require('./json2xml');

module.exports = {
  xml2js: xml2js,
  xml2json: xml2json,
  js2xml: js2xml,
  json2xml: json2xml
};

},{"./js2xml":31,"./json2xml":32,"./xml2js":34,"./xml2json":35}],31:[function(require,module,exports){
var helper = require('./options-helper');
var isArray = require('./array-helper').isArray;

var currentElement, currentElementName;

function validateOptions(userOptions) {
  var options = helper.copyOptions(userOptions);
  helper.ensureFlagExists('ignoreDeclaration', options);
  helper.ensureFlagExists('ignoreInstruction', options);
  helper.ensureFlagExists('ignoreAttributes', options);
  helper.ensureFlagExists('ignoreText', options);
  helper.ensureFlagExists('ignoreComment', options);
  helper.ensureFlagExists('ignoreCdata', options);
  helper.ensureFlagExists('ignoreDoctype', options);
  helper.ensureFlagExists('compact', options);
  helper.ensureFlagExists('indentText', options);
  helper.ensureFlagExists('indentCdata', options);
  helper.ensureFlagExists('indentAttributes', options);
  helper.ensureFlagExists('indentInstruction', options);
  helper.ensureFlagExists('fullTagEmptyElement', options);
  helper.ensureFlagExists('noQuotesForNativeAttributes', options);
  helper.ensureSpacesExists(options);
  if (typeof options.spaces === 'number') {
    options.spaces = Array(options.spaces + 1).join(' ');
  }
  helper.ensureKeyExists('declaration', options);
  helper.ensureKeyExists('instruction', options);
  helper.ensureKeyExists('attributes', options);
  helper.ensureKeyExists('text', options);
  helper.ensureKeyExists('comment', options);
  helper.ensureKeyExists('cdata', options);
  helper.ensureKeyExists('doctype', options);
  helper.ensureKeyExists('type', options);
  helper.ensureKeyExists('name', options);
  helper.ensureKeyExists('elements', options);
  helper.checkFnExists('doctype', options);
  helper.checkFnExists('instruction', options);
  helper.checkFnExists('cdata', options);
  helper.checkFnExists('comment', options);
  helper.checkFnExists('text', options);
  helper.checkFnExists('instructionName', options);
  helper.checkFnExists('elementName', options);
  helper.checkFnExists('attributeName', options);
  helper.checkFnExists('attributeValue', options);
  helper.checkFnExists('attributes', options);
  helper.checkFnExists('fullTagEmptyElement', options);
  return options;
}

function writeIndentation(options, depth, firstLine) {
  return (!firstLine && options.spaces ? '\n' : '') + Array(depth + 1).join(options.spaces);
}

function writeAttributes(attributes, options, depth) {
  if (options.ignoreAttributes) {
    return '';
  }
  if ('attributesFn' in options) {
    attributes = options.attributesFn(attributes, currentElementName, currentElement);
  }
  var key, attr, attrName, quote, result = [];
  for (key in attributes) {
    if (attributes.hasOwnProperty(key) && attributes[key] !== null && attributes[key] !== undefined) {
      quote = options.noQuotesForNativeAttributes && typeof attributes[key] !== 'string' ? '' : '"';
      attr = '' + attributes[key]; // ensure number and boolean are converted to String
      attr = attr.replace(/"/g, '&quot;');
      attrName = 'attributeNameFn' in options ? options.attributeNameFn(key, attr, currentElementName, currentElement) : key;
      result.push((options.spaces && options.indentAttributes? writeIndentation(options, depth+1, false) : ' '));
      result.push(attrName + '=' + quote + ('attributeValueFn' in options ? options.attributeValueFn(attr, key, currentElementName, currentElement) : attr) + quote);
    }
  }
  if (attributes && Object.keys(attributes).length && options.spaces && options.indentAttributes) {
    result.push(writeIndentation(options, depth, false));
  }
  return result.join('');
}

function writeDeclaration(declaration, options, depth) {
  currentElement = declaration;
  currentElementName = 'xml';
  return options.ignoreDeclaration ? '' :  '<?' + 'xml' + writeAttributes(declaration[options.attributesKey], options, depth) + '?>';
}

function writeInstruction(instruction, options, depth) {
  if (options.ignoreInstruction) {
    return '';
  }
  var key;
  for (key in instruction) {
    if (instruction.hasOwnProperty(key)) {
      break;
    }
  }
  var instructionName = 'instructionNameFn' in options ? options.instructionNameFn(key, instruction[key], currentElementName, currentElement) : key;
  if (typeof instruction[key] === 'object') {
    currentElement = instruction;
    currentElementName = instructionName;
    return '<?' + instructionName + writeAttributes(instruction[key][options.attributesKey], options, depth) + '?>';
  } else {
    var instructionValue = instruction[key] ? instruction[key] : '';
    if ('instructionFn' in options) instructionValue = options.instructionFn(instructionValue, key, currentElementName, currentElement);
    return '<?' + instructionName + (instructionValue ? ' ' + instructionValue : '') + '?>';
  }
}

function writeComment(comment, options) {
  return options.ignoreComment ? '' : '<!--' + ('commentFn' in options ? options.commentFn(comment, currentElementName, currentElement) : comment) + '-->';
}

function writeCdata(cdata, options) {
  return options.ignoreCdata ? '' : '<![CDATA[' + ('cdataFn' in options ? options.cdataFn(cdata, currentElementName, currentElement) : cdata.replace(']]>', ']]]]><![CDATA[>')) + ']]>';
}

function writeDoctype(doctype, options) {
  return options.ignoreDoctype ? '' : '<!DOCTYPE ' + ('doctypeFn' in options ? options.doctypeFn(doctype, currentElementName, currentElement) : doctype) + '>';
}

function writeText(text, options) {
  if (options.ignoreText) return '';
  text = '' + text; // ensure Number and Boolean are converted to String
  text = text.replace(/&amp;/g, '&'); // desanitize to avoid double sanitization
  text = text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
  return 'textFn' in options ? options.textFn(text, currentElementName, currentElement) : text;
}

function hasContent(element, options) {
  var i;
  if (element.elements && element.elements.length) {
    for (i = 0; i < element.elements.length; ++i) {
      switch (element.elements[i][options.typeKey]) {
      case 'text':
        if (options.indentText) {
          return true;
        }
        break; // skip to next key
      case 'cdata':
        if (options.indentCdata) {
          return true;
        }
        break; // skip to next key
      case 'instruction':
        if (options.indentInstruction) {
          return true;
        }
        break; // skip to next key
      case 'doctype':
      case 'comment':
      case 'element':
        return true;
      default:
        return true;
      }
    }
  }
  return false;
}

function writeElement(element, options, depth) {
  currentElement = element;
  currentElementName = element.name;
  var xml = [], elementName = 'elementNameFn' in options ? options.elementNameFn(element.name, element) : element.name;
  xml.push('<' + elementName);
  if (element[options.attributesKey]) {
    xml.push(writeAttributes(element[options.attributesKey], options, depth));
  }
  var withClosingTag = element[options.elementsKey] && element[options.elementsKey].length || element[options.attributesKey] && element[options.attributesKey]['xml:space'] === 'preserve';
  if (!withClosingTag) {
    if ('fullTagEmptyElementFn' in options) {
      withClosingTag = options.fullTagEmptyElementFn(element.name, element);
    } else {
      withClosingTag = options.fullTagEmptyElement;
    }
  }
  if (withClosingTag) {
    xml.push('>');
    if (element[options.elementsKey] && element[options.elementsKey].length) {
      xml.push(writeElements(element[options.elementsKey], options, depth + 1));
      currentElement = element;
      currentElementName = element.name;
    }
    xml.push(options.spaces && hasContent(element, options) ? '\n' + Array(depth + 1).join(options.spaces) : '');
    xml.push('</' + elementName + '>');
  } else {
    xml.push('/>');
  }
  return xml.join('');
}

function writeElements(elements, options, depth, firstLine) {
  return elements.reduce(function (xml, element) {
    var indent = writeIndentation(options, depth, firstLine && !xml);
    switch (element.type) {
    case 'element': return xml + indent + writeElement(element, options, depth);
    case 'comment': return xml + indent + writeComment(element[options.commentKey], options);
    case 'doctype': return xml + indent + writeDoctype(element[options.doctypeKey], options);
    case 'cdata': return xml + (options.indentCdata ? indent : '') + writeCdata(element[options.cdataKey], options);
    case 'text': return xml + (options.indentText ? indent : '') + writeText(element[options.textKey], options);
    case 'instruction':
      var instruction = {};
      instruction[element[options.nameKey]] = element[options.attributesKey] ? element : element[options.instructionKey];
      return xml + (options.indentInstruction ? indent : '') + writeInstruction(instruction, options, depth);
    }
  }, '');
}

function hasContentCompact(element, options, anyContent) {
  var key;
  for (key in element) {
    if (element.hasOwnProperty(key)) {
      switch (key) {
      case options.parentKey:
      case options.attributesKey:
        break; // skip to next key
      case options.textKey:
        if (options.indentText || anyContent) {
          return true;
        }
        break; // skip to next key
      case options.cdataKey:
        if (options.indentCdata || anyContent) {
          return true;
        }
        break; // skip to next key
      case options.instructionKey:
        if (options.indentInstruction || anyContent) {
          return true;
        }
        break; // skip to next key
      case options.doctypeKey:
      case options.commentKey:
        return true;
      default:
        return true;
      }
    }
  }
  return false;
}

function writeElementCompact(element, name, options, depth, indent) {
  currentElement = element;
  currentElementName = name;
  var elementName = 'elementNameFn' in options ? options.elementNameFn(name, element) : name;
  if (typeof element === 'undefined' || element === null || element === '') {
    return 'fullTagEmptyElementFn' in options && options.fullTagEmptyElementFn(name, element) || options.fullTagEmptyElement ? '<' + elementName + '></' + elementName + '>' : '<' + elementName + '/>';
  }
  var xml = [];
  if (name) {
    xml.push('<' + elementName);
    if (typeof element !== 'object') {
      xml.push('>' + writeText(element,options) + '</' + elementName + '>');
      return xml.join('');
    }
    if (element[options.attributesKey]) {
      xml.push(writeAttributes(element[options.attributesKey], options, depth));
    }
    var withClosingTag = hasContentCompact(element, options, true) || element[options.attributesKey] && element[options.attributesKey]['xml:space'] === 'preserve';
    if (!withClosingTag) {
      if ('fullTagEmptyElementFn' in options) {
        withClosingTag = options.fullTagEmptyElementFn(name, element);
      } else {
        withClosingTag = options.fullTagEmptyElement;
      }
    }
    if (withClosingTag) {
      xml.push('>');
    } else {
      xml.push('/>');
      return xml.join('');
    }
  }
  xml.push(writeElementsCompact(element, options, depth + 1, false));
  currentElement = element;
  currentElementName = name;
  if (name) {
    xml.push((indent ? writeIndentation(options, depth, false) : '') + '</' + elementName + '>');
  }
  return xml.join('');
}

function writeElementsCompact(element, options, depth, firstLine) {
  var i, key, nodes, xml = [];
  for (key in element) {
    if (element.hasOwnProperty(key)) {
      nodes = isArray(element[key]) ? element[key] : [element[key]];
      for (i = 0; i < nodes.length; ++i) {
        switch (key) {
        case options.declarationKey: xml.push(writeDeclaration(nodes[i], options, depth)); break;
        case options.instructionKey: xml.push((options.indentInstruction ? writeIndentation(options, depth, firstLine) : '') + writeInstruction(nodes[i], options, depth)); break;
        case options.attributesKey: case options.parentKey: break; // skip
        case options.textKey: xml.push((options.indentText ? writeIndentation(options, depth, firstLine) : '') + writeText(nodes[i], options)); break;
        case options.cdataKey: xml.push((options.indentCdata ? writeIndentation(options, depth, firstLine) : '') + writeCdata(nodes[i], options)); break;
        case options.doctypeKey: xml.push(writeIndentation(options, depth, firstLine) + writeDoctype(nodes[i], options)); break;
        case options.commentKey: xml.push(writeIndentation(options, depth, firstLine) + writeComment(nodes[i], options)); break;
        default: xml.push(writeIndentation(options, depth, firstLine) + writeElementCompact(nodes[i], key, options, depth, hasContentCompact(nodes[i], options)));
        }
        firstLine = firstLine && !xml.length;
      }
    }
  }
  return xml.join('');
}

module.exports = function (js, options) {
  options = validateOptions(options);
  var xml = [];
  currentElement = js;
  currentElementName = '_root_';
  if (options.compact) {
    xml.push(writeElementsCompact(js, options, 0, true));
  } else {
    if (js[options.declarationKey]) {
      xml.push(writeDeclaration(js[options.declarationKey], options, 0));
    }
    if (js[options.elementsKey] && js[options.elementsKey].length) {
      xml.push(writeElements(js[options.elementsKey], options, 0, !xml.length));
    }
  }
  return xml.join('');
};

},{"./array-helper":29,"./options-helper":33}],32:[function(require,module,exports){
(function (Buffer){(function (){
var js2xml = require('./js2xml.js');

module.exports = function (json, options) {
  if (json instanceof Buffer) {
    json = json.toString();
  }
  var js = null;
  if (typeof (json) === 'string') {
    try {
      js = JSON.parse(json);
    } catch (e) {
      throw new Error('The JSON structure is invalid');
    }
  } else {
    js = json;
  }
  return js2xml(js, options);
};

}).call(this)}).call(this,require("buffer").Buffer)

},{"./js2xml.js":31,"buffer":3}],33:[function(require,module,exports){
var isArray = require('./array-helper').isArray;

module.exports = {

  copyOptions: function (options) {
    var key, copy = {};
    for (key in options) {
      if (options.hasOwnProperty(key)) {
        copy[key] = options[key];
      }
    }
    return copy;
  },

  ensureFlagExists: function (item, options) {
    if (!(item in options) || typeof options[item] !== 'boolean') {
      options[item] = false;
    }
  },

  ensureSpacesExists: function (options) {
    if (!('spaces' in options) || (typeof options.spaces !== 'number' && typeof options.spaces !== 'string')) {
      options.spaces = 0;
    }
  },

  ensureAlwaysArrayExists: function (options) {
    if (!('alwaysArray' in options) || (typeof options.alwaysArray !== 'boolean' && !isArray(options.alwaysArray))) {
      options.alwaysArray = false;
    }
  },

  ensureKeyExists: function (key, options) {
    if (!(key + 'Key' in options) || typeof options[key + 'Key'] !== 'string') {
      options[key + 'Key'] = options.compact ? '_' + key : key;
    }
  },

  checkFnExists: function (key, options) {
    return key + 'Fn' in options;
  }

};

},{"./array-helper":29}],34:[function(require,module,exports){
var sax = require('sax');
var expat /*= require('node-expat');*/ = { on: function () { }, parse: function () { } };
var helper = require('./options-helper');
var isArray = require('./array-helper').isArray;

var options;
var pureJsParser = true;
var currentElement;

function validateOptions(userOptions) {
  options = helper.copyOptions(userOptions);
  helper.ensureFlagExists('ignoreDeclaration', options);
  helper.ensureFlagExists('ignoreInstruction', options);
  helper.ensureFlagExists('ignoreAttributes', options);
  helper.ensureFlagExists('ignoreText', options);
  helper.ensureFlagExists('ignoreComment', options);
  helper.ensureFlagExists('ignoreCdata', options);
  helper.ensureFlagExists('ignoreDoctype', options);
  helper.ensureFlagExists('compact', options);
  helper.ensureFlagExists('alwaysChildren', options);
  helper.ensureFlagExists('addParent', options);
  helper.ensureFlagExists('trim', options);
  helper.ensureFlagExists('nativeType', options);
  helper.ensureFlagExists('nativeTypeAttributes', options);
  helper.ensureFlagExists('sanitize', options);
  helper.ensureFlagExists('instructionHasAttributes', options);
  helper.ensureFlagExists('captureSpacesBetweenElements', options);
  helper.ensureAlwaysArrayExists(options);
  helper.ensureKeyExists('declaration', options);
  helper.ensureKeyExists('instruction', options);
  helper.ensureKeyExists('attributes', options);
  helper.ensureKeyExists('text', options);
  helper.ensureKeyExists('comment', options);
  helper.ensureKeyExists('cdata', options);
  helper.ensureKeyExists('doctype', options);
  helper.ensureKeyExists('type', options);
  helper.ensureKeyExists('name', options);
  helper.ensureKeyExists('elements', options);
  helper.ensureKeyExists('parent', options);
  helper.checkFnExists('doctype', options);
  helper.checkFnExists('instruction', options);
  helper.checkFnExists('cdata', options);
  helper.checkFnExists('comment', options);
  helper.checkFnExists('text', options);
  helper.checkFnExists('instructionName', options);
  helper.checkFnExists('elementName', options);
  helper.checkFnExists('attributeName', options);
  helper.checkFnExists('attributeValue', options);
  helper.checkFnExists('attributes', options);
  return options;
}

function nativeType(value) {
  var nValue = Number(value);
  if (!isNaN(nValue)) {
    return nValue;
  }
  var bValue = value.toLowerCase();
  if (bValue === 'true') {
    return true;
  } else if (bValue === 'false') {
    return false;
  }
  return value;
}

function addField(type, value) {
  var key;
  if (options.compact) {
    if (
      !currentElement[options[type + 'Key']] &&
      (isArray(options.alwaysArray) ? options.alwaysArray.indexOf(options[type + 'Key']) !== -1 : options.alwaysArray)
    ) {
      currentElement[options[type + 'Key']] = [];
    }
    if (currentElement[options[type + 'Key']] && !isArray(currentElement[options[type + 'Key']])) {
      currentElement[options[type + 'Key']] = [currentElement[options[type + 'Key']]];
    }
    if (type + 'Fn' in options && typeof value === 'string') {
      value = options[type + 'Fn'](value, currentElement);
    }
    if (type === 'instruction' && ('instructionFn' in options || 'instructionNameFn' in options)) {
      for (key in value) {
        if (value.hasOwnProperty(key)) {
          if ('instructionFn' in options) {
            value[key] = options.instructionFn(value[key], key, currentElement);
          } else {
            var temp = value[key];
            delete value[key];
            value[options.instructionNameFn(key, temp, currentElement)] = temp;
          }
        }
      }
    }
    if (isArray(currentElement[options[type + 'Key']])) {
      currentElement[options[type + 'Key']].push(value);
    } else {
      currentElement[options[type + 'Key']] = value;
    }
  } else {
    if (!currentElement[options.elementsKey]) {
      currentElement[options.elementsKey] = [];
    }
    var element = {};
    element[options.typeKey] = type;
    if (type === 'instruction') {
      for (key in value) {
        if (value.hasOwnProperty(key)) {
          break;
        }
      }
      element[options.nameKey] = 'instructionNameFn' in options ? options.instructionNameFn(key, value, currentElement) : key;
      if (options.instructionHasAttributes) {
        element[options.attributesKey] = value[key][options.attributesKey];
        if ('instructionFn' in options) {
          element[options.attributesKey] = options.instructionFn(element[options.attributesKey], key, currentElement);
        }
      } else {
        if ('instructionFn' in options) {
          value[key] = options.instructionFn(value[key], key, currentElement);
        }
        element[options.instructionKey] = value[key];
      }
    } else {
      if (type + 'Fn' in options) {
        value = options[type + 'Fn'](value, currentElement);
      }
      element[options[type + 'Key']] = value;
    }
    if (options.addParent) {
      element[options.parentKey] = currentElement;
    }
    currentElement[options.elementsKey].push(element);
  }
}

function manipulateAttributes(attributes) {
  if ('attributesFn' in options && attributes) {
    attributes = options.attributesFn(attributes, currentElement);
  }
  if ((options.trim || 'attributeValueFn' in options || 'attributeNameFn' in options || options.nativeTypeAttributes) && attributes) {
    var key;
    for (key in attributes) {
      if (attributes.hasOwnProperty(key)) {
        if (options.trim) attributes[key] = attributes[key].trim();
        if (options.nativeTypeAttributes) {
          attributes[key] = nativeType(attributes[key]);
        }
        if ('attributeValueFn' in options) attributes[key] = options.attributeValueFn(attributes[key], key, currentElement);
        if ('attributeNameFn' in options) {
          var temp = attributes[key];
          delete attributes[key];
          attributes[options.attributeNameFn(key, attributes[key], currentElement)] = temp;
        }
      }
    }
  }
  return attributes;
}

function onInstruction(instruction) {
  var attributes = {};
  if (instruction.body && (instruction.name.toLowerCase() === 'xml' || options.instructionHasAttributes)) {
    var attrsRegExp = /([\w:-]+)\s*=\s*(?:"([^"]*)"|'([^']*)'|(\w+))\s*/g;
    var match;
    while ((match = attrsRegExp.exec(instruction.body)) !== null) {
      attributes[match[1]] = match[2] || match[3] || match[4];
    }
    attributes = manipulateAttributes(attributes);
  }
  if (instruction.name.toLowerCase() === 'xml') {
    if (options.ignoreDeclaration) {
      return;
    }
    currentElement[options.declarationKey] = {};
    if (Object.keys(attributes).length) {
      currentElement[options.declarationKey][options.attributesKey] = attributes;
    }
    if (options.addParent) {
      currentElement[options.declarationKey][options.parentKey] = currentElement;
    }
  } else {
    if (options.ignoreInstruction) {
      return;
    }
    if (options.trim) {
      instruction.body = instruction.body.trim();
    }
    var value = {};
    if (options.instructionHasAttributes && Object.keys(attributes).length) {
      value[instruction.name] = {};
      value[instruction.name][options.attributesKey] = attributes;
    } else {
      value[instruction.name] = instruction.body;
    }
    addField('instruction', value);
  }
}

function onStartElement(name, attributes) {
  var element;
  if (typeof name === 'object') {
    attributes = name.attributes;
    name = name.name;
  }
  attributes = manipulateAttributes(attributes);
  if ('elementNameFn' in options) {
    name = options.elementNameFn(name, currentElement);
  }
  if (options.compact) {
    element = {};
    if (!options.ignoreAttributes && attributes && Object.keys(attributes).length) {
      element[options.attributesKey] = {};
      var key;
      for (key in attributes) {
        if (attributes.hasOwnProperty(key)) {
          element[options.attributesKey][key] = attributes[key];
        }
      }
    }
    if (
      !(name in currentElement) &&
      (isArray(options.alwaysArray) ? options.alwaysArray.indexOf(name) !== -1 : options.alwaysArray)
    ) {
      currentElement[name] = [];
    }
    if (currentElement[name] && !isArray(currentElement[name])) {
      currentElement[name] = [currentElement[name]];
    }
    if (isArray(currentElement[name])) {
      currentElement[name].push(element);
    } else {
      currentElement[name] = element;
    }
  } else {
    if (!currentElement[options.elementsKey]) {
      currentElement[options.elementsKey] = [];
    }
    element = {};
    element[options.typeKey] = 'element';
    element[options.nameKey] = name;
    if (!options.ignoreAttributes && attributes && Object.keys(attributes).length) {
      element[options.attributesKey] = attributes;
    }
    if (options.alwaysChildren) {
      element[options.elementsKey] = [];
    }
    currentElement[options.elementsKey].push(element);
  }
  element[options.parentKey] = currentElement; // will be deleted in onEndElement() if !options.addParent
  currentElement = element;
}

function onText(text) {
  if (options.ignoreText) {
    return;
  }
  if (!text.trim() && !options.captureSpacesBetweenElements) {
    return;
  }
  if (options.trim) {
    text = text.trim();
  }
  if (options.nativeType) {
    text = nativeType(text);
  }
  if (options.sanitize) {
    text = text.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
  }
  addField('text', text);
}

function onComment(comment) {
  if (options.ignoreComment) {
    return;
  }
  if (options.trim) {
    comment = comment.trim();
  }
  addField('comment', comment);
}

function onEndElement(name) {
  var parentElement = currentElement[options.parentKey];
  if (!options.addParent) {
    delete currentElement[options.parentKey];
  }
  currentElement = parentElement;
}

function onCdata(cdata) {
  if (options.ignoreCdata) {
    return;
  }
  if (options.trim) {
    cdata = cdata.trim();
  }
  addField('cdata', cdata);
}

function onDoctype(doctype) {
  if (options.ignoreDoctype) {
    return;
  }
  doctype = doctype.replace(/^ /, '');
  if (options.trim) {
    doctype = doctype.trim();
  }
  addField('doctype', doctype);
}

function onError(error) {
  error.note = error; //console.error(error);
}

module.exports = function (xml, userOptions) {

  var parser = pureJsParser ? sax.parser(true, {}) : parser = new expat.Parser('UTF-8');
  var result = {};
  currentElement = result;

  options = validateOptions(userOptions);

  if (pureJsParser) {
    parser.opt = {strictEntities: true};
    parser.onopentag = onStartElement;
    parser.ontext = onText;
    parser.oncomment = onComment;
    parser.onclosetag = onEndElement;
    parser.onerror = onError;
    parser.oncdata = onCdata;
    parser.ondoctype = onDoctype;
    parser.onprocessinginstruction = onInstruction;
  } else {
    parser.on('startElement', onStartElement);
    parser.on('text', onText);
    parser.on('comment', onComment);
    parser.on('endElement', onEndElement);
    parser.on('error', onError);
    //parser.on('startCdata', onStartCdata);
    //parser.on('endCdata', onEndCdata);
    //parser.on('entityDecl', onEntityDecl);
  }

  if (pureJsParser) {
    parser.write(xml).close();
  } else {
    if (!parser.parse(xml)) {
      throw new Error('XML parsing error: ' + parser.getError());
    }
  }

  if (result[options.elementsKey]) {
    var temp = result[options.elementsKey];
    delete result[options.elementsKey];
    result[options.elementsKey] = temp;
    delete result.text;
  }

  return result;

};

},{"./array-helper":29,"./options-helper":33,"sax":10}],35:[function(require,module,exports){
var helper = require('./options-helper');
var xml2js = require('./xml2js');

function validateOptions (userOptions) {
  var options = helper.copyOptions(userOptions);
  helper.ensureSpacesExists(options);
  return options;
}

module.exports = function(xml, userOptions) {
  var options, js, json, parentKey;
  options = validateOptions(userOptions);
  js = xml2js(xml, options);
  parentKey = 'compact' in options && options.compact ? '_parent' : 'parent';
  // parentKey = ptions.compact ? '_parent' : 'parent'; // consider this
  if ('addParent' in options && options.addParent) {
    json = JSON.stringify(js, function (k, v) { return k === parentKey? '_' : v; }, options.spaces);
  } else {
    json = JSON.stringify(js, null, options.spaces);
  }
  return json.replace(/\u2028/g, '\\u2028').replace(/\u2029/g, '\\u2029');
};

},{"./options-helper":33,"./xml2js":34}],36:[function(require,module,exports){
// color value ranges are all 0 to 1

// input: hue,saturation,lightness in [0,1] - output: red,green,blue in [0,1]
var Color, component_names, hsl2rgb;

hsl2rgb = function(hue, saturation, lightness) {
  var a, f;
  a = saturation * Math.min(lightness, 1 - lightness);
  f = function(n, k = (n + hue * 12) % 12) {
    return lightness - a * Math.max(Math.min(k - 3, 9 - k, 1), -1);
  };
  return [f(0), f(8), f(4)].map(function(component) {
    return component;
  });
};

component_names = ["red", "green", "blue", "hue", "saturation", "lightness", "value", "cyan", "magenta", "yellow", "key", "alpha", "x", "y", "z", "l", "a", "b"];

module.exports = Color = class Color {
  constructor(options) {
    var c, component_name, cyan, i, j, key, l, len, len1, len2, magenta, powed, ref, ref1, reject_args, rgb, white_D50, x, xyz, y, yellow, z;
    // @TODO: don't assign all of {@red, @green, @blue, @hue, @saturation, @value, @lightness} right away
    // only assign the properties that are used
    ({red: this.red, green: this.green, blue: this.blue, hue: this.hue, saturation: this.saturation, value: this.value, lightness: this.lightness, cyan, magenta, yellow, key, alpha: this.alpha, name: this.name} = options);
    for (i = 0, len = component_names.length; i < len; i++) {
      component_name = component_names[i];
      if (!(options[component_name] != null)) {
        continue;
      }
      if ((!isFinite(options[component_name])) || (typeof options[component_name] !== "number")) {
        throw new TypeError(`Color component option ${component_name} is not a finite number: ${JSON.stringify(options[component_name])}`);
      }
      if (options[component_name] < 0 || options[component_name] > 1) {
        throw new TypeError(`Color component option ${component_name} outside range of [0,1]: ${options[component_name]}`);
      }
    }
    reject_args = function() {
      throw new TypeError(`Color constructor must be called with {red,green,blue} or {hue,saturation,value} or {hue,saturation,lightness} or {cyan,magenta,yellow,key} or {x,y,z} or {l,a,b}, ${(function() {
        try {
          return `got ${JSON.stringify(options)}`;
        } catch (error) {
          return "got something that couldn't be displayed with JSON.stringify for this error message";
        }
      })()}`);
    };
    if ((this.red != null) && (this.green != null) && (this.blue != null)) {

    // Red Green Blue
    // (no conversions needed here)
    } else if ((this.hue != null) && (this.saturation != null)) {
      // Cylindrical Color Space
      if (this.value != null) {
        // Hue Saturation Value
        this.lightness = (2 - this.saturation) * this.value / 2;
        this.saturation = this.saturation * this.value / (this.lightness < 0.5 ? this.lightness * 2 : 2 - this.lightness * 2);
        if (isNaN(this.saturation)) {
          this.saturation = 0;
        }
      } else if (this.lightness != null) {

      // Hue Saturation Lightness
      // (no conversions needed here)
      } else if (options.brightness != null) {
        throw new TypeError("{hue, saturation, brightness} not supported. Use {hue, saturation, value} instead for an equivalent color space");
      } else {
        reject_args();
      }
      [this.red, this.green, this.blue] = hsl2rgb(this.hue, this.saturation, this.lightness);
    } else if ((cyan != null) && (magenta != null) && (yellow != null) && (key != null)) {
      // Cyan Magenta Yellow blacK
      throw new Error("CMYK color space is not currently supported");
      this.red = 1 - Math.min(1, cyan * (1 - key) + key);
      this.green = 1 - Math.min(1, magenta * (1 - key) + key);
      this.blue = 1 - Math.min(1, yellow * (1 - key) + key);
    } else {
      // TODO: rename l -> lightness?
      // a/b -> aChroma/bChroma? aChrominance/bChrominance??
      if ((options.l != null) && (options.a != null) && (options.b != null)) {
        throw new Error("L*a*b* color space is not currently supported");
        white_D50 = {
          x: 96.422,
          y: 100.000,
          z: 82.521
        };
        // white_D65 =
        // 	x: 95.047
        // 	y: 100.000
        // 	z: 108.883
        options.a -= 1 / 2;
        options.b -= 1 / 2;
        // TODO: Get this actually working, using Information and Math instead of Fiddling Around
        // It would be nice if I could find some XYZ palettes,
        // since the LAB handling depends on the XYZ handling.
        options.l = Math.pow(options.l, 2); // messing around
        options.l *= 15; // messing around
        options.a *= 80; // messing around
        options.b *= 80; // messing around
        xyz = {
          y: (options.l + 16) / 116
        };
        xyz.x = options.a / 500 + xyz.y;
        xyz.z = xyz.y - options.b / 200;
        ref = "xyz";
        for (j = 0, len1 = ref.length; j < len1; j++) {
          c = ref[j];
          powed = Math.pow(xyz[c], 3);
          if (powed > 0.008856) {
            xyz[c] = powed;
          } else {
            xyz[c] = (xyz[c] - 16 / 116) / 7.787;
          }
          // set {x, y, z} options for fallthrough
          options[c] = xyz[c] * white_D50[c];
        }
      }
      // fallthrough
      if ((options.x != null) && (options.y != null) && (options.z != null)) {
        throw new Error("XYZ color space is not currently supported");
        ({x, y, z} = options);
        rgb = {
          r: x * 3.2406 + y * -1.5372 + z * -0.4986,
          g: x * -0.9689 + y * 1.8758 + z * 0.0415,
          b: x * 0.0557 + y * -0.2040 + z * 1.0570
        };
        ref1 = "rgb";
        
        // r =  3.2404542*x - 1.5371385*y - 0.4985314*z
        // g = -0.9692660*x + 1.8760108*y + 0.0415560*z
        // b =  0.0556434*x - 0.2040259*y + 1.0572252*z
        for (l = 0, len2 = ref1.length; l < len2; l++) {
          c = ref1[l];
          if (rgb[c] < 0) {
            rgb[c] = 0;
          }
          if (rgb[c] > 0.0031308) {
            rgb[c] = 1.055 * Math.pow(rgb[c], 1 / 2.4) - 0.055;
          } else {
            rgb[c] *= 12.92;
          }
        }
        this.red = rgb.r;
        this.green = rgb.g;
        this.blue = rgb.b;
      } else {
        reject_args();
      }
    }
  }

  toString() {
    if (this.hue != null) {
      // Hue Saturation Lightness
      if (this.alpha != null) {
        return `hsla(${this.hue * 360}, ${this.saturation * 100}%, ${this.lightness * 100}%, ${this.alpha})`;
      } else {
        return `hsl(${this.hue * 360}, ${this.saturation * 100}%, ${this.lightness * 100}%)`;
      }
    } else if (this.red != null) {
      // Red Green Blue
      if (this.alpha != null) {
        return `rgba(${this.red * 255}, ${this.green * 255}, ${this.blue * 255}, ${this.alpha})`;
      } else {
        return `rgb(${this.red * 255}, ${this.green * 255}, ${this.blue * 255})`;
      }
    }
  }

  static is(colorA, colorB, epsilon = 0.0001) {
    var ref, ref1;
    return Math.abs(colorA.red - colorB.red) < epsilon && Math.abs(colorA.green - colorB.green) < epsilon && Math.abs(colorA.blue - colorB.blue) < epsilon && Math.abs(((ref = colorA.alpha) != null ? ref : 1) - ((ref1 = colorB.alpha) != null ? ref1 : 1)) < epsilon;
  }

};


},{}],37:[function(require,module,exports){
var Color, Palette, component_names;

Color = require("./Color");

component_names = ["r", "g", "b", "h", "s", "l", "v", "x", "y", "z", "a", "b", "c", "m", "y", "k", "red", "green", "blue", "hue", "saturation", "lightness", "value", "cyan", "magenta", "yellow", "key", "alpha"];

module.exports = Palette = class Palette extends Array {
  constructor(...args) {
    super(...args);
    this.name = void 0;
    this.description = void 0;
    this.numberOfColumns = void 0;
    this.geometrySpecifiedByFile = void 0;
  }

  add(o) {
    var component_name, i, len, new_color;
    for (i = 0, len = component_names.length; i < len; i++) {
      component_name = component_names[i];
      if (!(o[component_name] != null)) {
        continue;
      }
      if ((!isFinite(o[component_name])) || (typeof o[component_name] !== "number")) {
        throw new TypeError(`palette.add() component option ${component_name} is not a finite number: ${JSON.stringify(o[component_name])}`);
      }
      if (o[component_name] < 0 || o[component_name] > 1) {
        throw new TypeError(`palette.add() component option ${component_name} outside range of [0,1]: ${o[component_name]}`);
      }
    }
    new_color = o instanceof Color ? o : new Color(o);
    return this.push(new_color);
  }

};

/*
guess_dimensions: ->
 * TODO: get this working properly and enable

	len = @length
	candidate_dimensions = []
	for numberOfColumns in [0..len]
		n_rows = len / numberOfColumns
		if n_rows is Math.round n_rows
			candidate_dimensions.push [n_rows, numberOfColumns]

	squarest = [0, 3495093]
	for cd in candidate_dimensions
		if Math.abs(cd[0] - cd[1]) < Math.abs(squarest[0] - squarest[1])
			squarest = cd

	@numberOfColumns = squarest[1]
 */


},{"./Color":36}],38:[function(require,module,exports){
var MAX_UINT16, MAX_UINT32, Palette, PhotoshopColorSpace, get_utf_16_string, jDataView;

jDataView = require("jdataview");

Palette = require("../Palette");

MAX_UINT16 = 2 ** 16 - 1;

MAX_UINT32 = 2 ** 32 - 1;

PhotoshopColorSpace = Object.freeze({
  RGB: 0,
  HSB: 1, // also known as HSV
  CMYK: 2,
  PANTONE: 3, // brand name
  FOCOLTONE: 4, // brand name
  TRUMATCH: 5, // brand name
  TOYO: 6, // brand name
  LAB: 7, // CIELAB D50 
  GRAYSCALE: 8,
  WIDE_CMYK: 9,
  HKS: 10, // brand name
  DIC: 11, // brand name
  TOTAL_INK: 12, // brand name
  MONITOR_RGB: 13,
  DUOTONE: 14,
  OPACITY: 15,
  WEB: 16,
  GRAY_FLOAT: 17,
  RGB_FLOAT: 18,
  OPACITY_FLOAT: 19,
  0: "RGB",
  1: "HSB", // also known as HSV
  2: "CMYK",
  3: "PANTONE", // brand name
  4: "FOCOLTONE", // brand name
  5: "TRUMATCH", // brand name
  6: "TOYO", // brand name
  7: "LAB", // CIELAB D50 
  8: "GRAYSCALE",
  9: "WIDE_CMYK",
  10: "HKS", // brand name
  11: "DIC", // brand name
  12: "TOTAL_INK", // brand name
  13: "MONITOR_RGB",
  14: "DUOTONE",
  15: "OPACITY",
  16: "WEB",
  17: "GRAY_FLOAT",
  18: "RGB_FLOAT",
  19: "OPACITY_FLOAT"
});

get_utf_16_string = function(view, length, including_terminator) {
  var i, ref, string;
  if (including_terminator) {
    length -= 1;
  }
  string = "";
  for (i = 0, ref = length; (0 <= ref ? i < ref : i > ref); 0 <= ref ? i++ : i--) {
    string += String.fromCharCode(view.getUint16());
  }
  if (including_terminator) {
    view.getUint16(); // should be 0x0000
  }
  return string;
};

module.exports.read_adobe_color_swatch = function({data}) {
  var aco_v1_version, aco_v2_colors_offset, aco_v2_number_of_colors, aco_v2_offset, aco_v2_version, header_size, i, j, number_of_colors, palette, read_color, ref, ref1, view;
  // ACO (Adobe Color Swatch)
  palette = new Palette();
  view = new jDataView(data);
  read_color = function(aco_v2) {
    var color_space, length_including_terminator, name, w, x, y, z;
    color_space = view.getUint16();
    w = view.getUint16() / MAX_UINT16;
    x = view.getUint16() / MAX_UINT16;
    y = view.getUint16() / MAX_UINT16;
    z = view.getUint16() / MAX_UINT16;
    if (aco_v2) {
      view.getUint16(); // should be 0x0000
      length_including_terminator = view.getUint16();
      name = get_utf_16_string(view, length_including_terminator, true);
    } else {
      name = void 0;
    }
    switch (color_space) {
      case PhotoshopColorSpace.RGB:
        return palette.add({
          red: w,
          green: x,
          blue: y,
          name: name
        });
      case PhotoshopColorSpace.HSB:
        return palette.add({
          hue: w,
          saturation: x,
          value: y,
          name: name
        });
      case PhotoshopColorSpace.CMYK:
      case PhotoshopColorSpace.WIDE_CMYK:
        return palette.add({
          cyan: w,
          magenta: x,
          yellow: y,
          key: z,
          name: name
        });
      case PhotoshopColorSpace.LAB:
        return palette.add({
          l: w,
          a: x,
          b: y,
          name: name
        });
      case PhotoshopColorSpace.GRAYSCALE:
        return palette.add({
          red: w,
          green: w,
          blue: w,
          name: name
        });
    }
  };
  aco_v1_version = view.getUint16();
  number_of_colors = view.getUint16();
  if (aco_v1_version !== 1) {
    throw new Error("Not an Adobe Color Swatch file");
  }
  header_size = 4; // ACO v1 or v2 header, same size
  aco_v2_offset = header_size + number_of_colors * (5 * 2);
  aco_v2_colors_offset = aco_v2_offset + header_size;
  if (view.byteLength <= aco_v2_offset) {
// ACO v1 only file
    for (i = 0, ref = number_of_colors; (0 <= ref ? i < ref : i > ref); 0 <= ref ? i++ : i--) {
      read_color(false);
    }
    return palette;
  }
  view.seek(aco_v2_offset);
  aco_v2_version = view.getUint16();
  aco_v2_number_of_colors = view.getUint16();
  // view.seek(aco_v2_colors_offset)
  if (aco_v2_version !== 2) {
    throw new Error("Not an Adobe Color Swatch file v2");
  }
  if (aco_v2_number_of_colors !== number_of_colors) {
    throw new Error("Number of colors mismatch between ACO v1 and v2 sections");
  }
  for (j = 0, ref1 = number_of_colors; (0 <= ref1 ? j < ref1 : j > ref1); 0 <= ref1 ? j++ : j--) {
    read_color(true);
  }
  return palette;
};

module.exports.write_adobe_color_swatch = function(palette) {
  var aco_v1_colors, aco_v2_colors, array_buffer, color, file_size, file_view, i, j, len, len1, write_color;
  // ACO (Adobe Color Swatch)
  write_color = function(color, aco_v2) {
    var char, color_space, color_view, component, components, i, j, len, len1, name, ref, size;
    name = (ref = color.name) != null ? ref : color.toString();
    color_space = PhotoshopColorSpace.RGB;
    components = [
      color.red,
      color.green,
      color.blue,
      0 // always 4 long
    ];
    size = 2 + components.length * 2; // color space // components
    if (aco_v2) {
      size += 2 + 2 + (name.length + 1) * 2; // padding/reserved // name length // name + terminator
    }
    color_view = new jDataView(size);
    color_view.writeUint16(color_space);
    for (i = 0, len = components.length; i < len; i++) {
      component = components[i];
      color_view.writeUint16(component * MAX_UINT16);
    }
    if (aco_v2) {
      color_view.writeUint16(0); // padding/reserved
      color_view.writeUint16(name.length + 1);
      for (j = 0, len1 = name.length; j < len1; j++) {
        char = name[j];
        color_view.writeUint16(char.charCodeAt(0));
      }
      color_view.writeUint16(0); // terminator
    }
    return color_view.buffer;
  };
  aco_v1_colors = (function() {
    var i, len, results;
    results = [];
    for (i = 0, len = palette.length; i < len; i++) {
      color = palette[i];
      results.push(write_color(color, false));
    }
    return results;
  })();
  aco_v2_colors = (function() {
    var i, len, results;
    results = [];
    for (i = 0, len = palette.length; i < len; i++) {
      color = palette[i];
      results.push(write_color(color, true));
    }
    return results;
  })();
  // aco v1
  file_size = 2 + 2 + aco_v1_colors.reduce((function(size_sum, array_buffer) { // version number // number of colors
    return size_sum + array_buffer.byteLength;
  // # aco v2
  }), 0) + 2 + 2 + aco_v2_colors.reduce((function(size_sum, array_buffer) { // version number // number of colors
    return size_sum + array_buffer.byteLength;
  }), 0);
  file_view = new jDataView(file_size);
  // aco v1
  file_view.writeUint16(1); // version number for aco v1 section
  file_view.writeUint16(palette.length); // number of colors
  for (i = 0, len = aco_v1_colors.length; i < len; i++) {
    array_buffer = aco_v1_colors[i];
    file_view.writeBytes(new Uint8Array(array_buffer));
  }
  // aco v2
  file_view.writeUint16(2); // version number for aco v2 section
  file_view.writeUint16(palette.length); // number of colors
  for (j = 0, len1 = aco_v2_colors.length; j < len1; j++) {
    array_buffer = aco_v2_colors[j];
    file_view.writeBytes(new Uint8Array(array_buffer));
  }
  return file_view.buffer;
};

module.exports.read_adobe_swatch_exchange = function({data}) {
  var BLOCK_TYPE_COLOR, BLOCK_TYPE_GROUP_END, BLOCK_TYPE_GROUP_START, COLOR_MODE_GLOBAL, COLOR_MODE_NORMAL, COLOR_MODE_SPOT, COLOR_SPACE_CMYK, COLOR_SPACE_GRAYSCALE, COLOR_SPACE_RGB, block_end_pos, block_length, block_type, color_mode, color_space, gray, i, name, name_length_including_terminator, number_of_blocks, palette, ref, version, view, within_groups;
  // ASE (Adobe Swatch Exchange)
  palette = new Palette();
  view = new jDataView(data);
  if (view.getString(4) !== "ASEF") {
    throw new Error("Not an Adobe Swatch Exchange file");
  }
  version = view.getUint32();
  // if version isnt 1 
  // 	throw new Error "Unknown Adobe Swatch Exchange format version #{version}"
  number_of_blocks = view.getUint32();
  BLOCK_TYPE_GROUP_START = 0xc001;
  BLOCK_TYPE_GROUP_END = 0xc002;
  BLOCK_TYPE_COLOR = 0x0001;
  COLOR_SPACE_CMYK = "CMYK";
  COLOR_SPACE_RGB = "RGB ";
  COLOR_SPACE_GRAYSCALE = "GRAY";
  COLOR_MODE_GLOBAL = 0;
  COLOR_MODE_SPOT = 1;
  COLOR_MODE_NORMAL = 2;
  within_groups = [];
  for (i = 0, ref = number_of_blocks; (0 <= ref ? i < ref : i > ref); 0 <= ref ? i++ : i--) {
    block_type = view.getUint16();
    block_length = view.getUint32();
    block_end_pos = view.tell() + block_length;
    switch (block_type) {
      case BLOCK_TYPE_GROUP_START:
        name_length_including_terminator = view.getUint16();
        name = get_utf_16_string(view, name_length_including_terminator, true);
        within_groups.push({name});
        break;
      case BLOCK_TYPE_GROUP_END:
        within_groups.pop();
        break;
      case BLOCK_TYPE_COLOR:
        name_length_including_terminator = view.getUint16();
        name = get_utf_16_string(view, name_length_including_terminator, true);
        color_space = view.getString(4);
        switch (color_space) {
          case COLOR_SPACE_CMYK:
            palette.add({
              cyan: view.getFloat32(),
              magenta: view.getFloat32(),
              yellow: view.getFloat32(),
              key: view.getFloat32(),
              name: name
            });
            break;
          case COLOR_SPACE_RGB:
            palette.add({
              red: view.getFloat32(),
              green: view.getFloat32(),
              blue: view.getFloat32(),
              name: name
            });
            break;
          case COLOR_SPACE_GRAYSCALE:
            gray = view.getFloat32();
            palette.add({
              red: gray,
              green: gray,
              blue: gray,
              name: name
            });
        }
        color_mode = view.getUint16();
    }
    view.seek(block_end_pos);
  }
  return palette;
};

module.exports.write_adobe_swatch_exchange = function(palette) {
  var BLOCK_TYPE_COLOR, BLOCK_TYPE_GROUP_END, BLOCK_TYPE_GROUP_START, COLOR_MODE_GLOBAL, COLOR_MODE_NORMAL, COLOR_MODE_SPOT, COLOR_SPACE_CMYK, COLOR_SPACE_GRAYSCALE, COLOR_SPACE_RGB, block, block_size, block_type, block_view, blocks, body_size, char, color, file_size, i, j, k, len, len1, len2, name, ref, size_of_all_blocks, version, view;
  // ASE (Adobe Swatch Exchange)

  // TODO: DRY
  BLOCK_TYPE_GROUP_START = 0xc001;
  BLOCK_TYPE_GROUP_END = 0xc002;
  BLOCK_TYPE_COLOR = 0x0001;
  COLOR_SPACE_CMYK = "CMYK";
  COLOR_SPACE_RGB = "RGB ";
  COLOR_SPACE_GRAYSCALE = "GRAY";
  COLOR_MODE_GLOBAL = 0;
  COLOR_MODE_SPOT = 1;
  COLOR_MODE_NORMAL = 2;
  blocks = [];
  size_of_all_blocks = 0;
  for (i = 0, len = palette.length; i < len; i++) {
    color = palette[i];
    name = (ref = color.name) != null ? ref : color.toString();
    block_type = BLOCK_TYPE_COLOR;
    body_size = 2 + (name.length + 1) * 2 + 4 + (3 * 4) + 2; // name length +  +  +  // name (zero codepoint terminated and 2 bytes per codepoint) // color space ID // color components (3 float32 values) // color type
    block_size = 2 + 4 + body_size; // block type // body size // body
    block_view = jDataView(block_size);
    block_view.writeUint16(block_type);
    block_view.writeUint32(body_size);
    block_view.writeUint16(name.length + 1);
    for (j = 0, len1 = name.length; j < len1; j++) {
      char = name[j];
      block_view.writeUint16(char.charCodeAt(0));
    }
    block_view.writeUint16(0); // terminator
    block_view.writeString(COLOR_SPACE_RGB);
    block_view.writeFloat32(color.red);
    block_view.writeFloat32(color.green);
    block_view.writeFloat32(color.blue);
    block_view.writeUint16(COLOR_MODE_GLOBAL); // TODO: which to use?
    blocks.push(block_view.buffer);
    size_of_all_blocks += block_size;
  }
  file_size = 4 + 4 + 4 + size_of_all_blocks; // magic number ("ASEF") // version number // number of blocks
  view = new jDataView(file_size);
  view.writeString("ASEF");
  version = 1;
  view.writeUint32(version);
  view.writeUint32(blocks.length);
  for (k = 0, len2 = blocks.length; k < len2; k++) {
    block = blocks[k];
    view.writeBytes(new Uint8Array(block));
  }
  return view.buffer;
};

module.exports.read_adobe_color_book = function({data}) {
  var add, bad, book_description, book_id, book_title, color_code, color_count, color_name, color_name_prefix, color_name_suffix, color_space, extract_value, i, page_selector_offset, page_size, palette, pos, ref, sig, ver, view;
  // ACB (Adobe Color Book)

  // References:
  // https://magnetiq.ca/pages/acb-spec/
  // https://github.com/jacobbubu/acb/blob/177e3acc9549d6f7802f9d039410f218942b1610/decoder.coffee
  palette = new Palette();
  view = new jDataView(data);
  sig = view.getString(4);
  if (sig !== "8BCB") {
    throw new Error("Not an Adobe Color Book");
  }
  ver = view.getUint16();
  if (ver !== 1) {
    throw new Error(`Unknown Adobe Color Book version: ${ver}?`);
  }
  extract_value = function(str) {
    var value;
    // remove wrapper double quote
    value = str.replace(/^"(.*)"$/, '$1');
    // e.x: $$$/acb/Pantone/ProcessYellow=Process Yellow CP
    if (value.startsWith('$$$')) {
      value = value.split('=')[1];
    }
    value = value.replace('^R', '®');
    value = value.replace('^C', '©');
    return value;
  };
  book_id = view.getUint16();
  book_title = extract_value(get_utf_16_string(view, view.getUint32(), false));
  color_name_prefix = extract_value(get_utf_16_string(view, view.getUint32(), false));
  color_name_suffix = extract_value(get_utf_16_string(view, view.getUint32(), false));
  book_description = extract_value(get_utf_16_string(view, view.getUint32()));
  color_count = view.getUint16();
  page_size = view.getUint16();
  page_selector_offset = view.getUint16();
  color_space = view.getUint16();
  for (i = 0, ref = color_count; (0 <= ref ? i < ref : i > ref); 0 <= ref ? i++ : i--) {
    color_name = extract_value(get_utf_16_string(view, view.getUint32(), false));
    color_code = view.getString(6).trim();
    color_code = color_code.replace(/^0*(\d+)$/, '$1');
    color_code = color_code.replace('X', '-');
    
    // just in case? I've not seen an example of this
    if (color_code && !color_name) {
      pos = color_code.lastIndexOf(color_name_suffix.trim());
      color_name = pos >= 0 ? color_code.slice(0, pos) : color_code;
    }
    // console.log color_code, pos, color_name
    add = function(o) {
      if (!color_name.trim() && !color_code.trim()) {
        return;
      }
      // This is just a dummy record used for padding
      o.name = color_name_prefix + color_name + color_name_suffix;
      // o.code = color_code
      return palette.add(o);
    };
    bad = function() {
      throw new Error(`Color space #${color_space} (${PhotoshopColorSpace[color_space]}) not supported.`);
    };
    switch (color_space) {
      case 0: // RGB
        add({
          red: view.getUint8() / 255,
          green: view.getUint8() / 255,
          blue: view.getUint8() / 255
        });
        break;
      case 1: // HSB
        add({
          hue: view.getUint8() / 255,
          saturation: view.getUint8() / 255,
          value: view.getUint8() / 255
        });
        break;
      case 2: // CMYK
        add({
          cyan: 1 - (view.getUint8() / 255),
          magenta: 1 - (view.getUint8() / 255),
          yellow: 1 - (view.getUint8() / 255),
          key: 1 - (view.getUint8() / 255)
        });
        break;
      case 3: // Pantone
        bad();
        break;
      case 4: // Focoltone
        bad();
        break;
      case 5: // Trumatch
        bad();
        break;
      case 6: // Toyo
        bad();
        break;
      case 7: // Lab (CIELAB D50)
        add({
          l: view.getUint8() / 255,
          a: view.getUint8() / 255,
          b: view.getUint8() / 255
        });
        break;
      case 8: // Grayscale
        bad();
        break;
      case 9: // Wide CMYK
        bad();
        break;
      case 10: // HKS
        bad();
        break;
      default:
        bad();
    }
  }
  
  // There's an optional field defining whether the color book is for spot or process colors.
  // Would need to check for EOF to read this field.
  // isSpot = view.getString(8) is "spflspot"
  palette.name = book_title;
  palette.description = book_description;
  return palette;
};


},{"../Palette":37,"jdataview":7}],39:[function(require,module,exports){
// Read/write Adobe Color Table file (.act)
/*
"There is no version number written in the file.
The file is 768 or 772 bytes long and contains 256 RGB colors.
The first color in the table is index zero.
There are three bytes per color in the order red, green, blue.
If the file is 772 bytes long there are 4 additional bytes remaining.
	Two bytes for the number of colors to use.
	Two bytes for the color index with the transparency color to use."

https://www.adobe.com/devnet-apps/photoshop/fileformatashtml/#50577411_pgfId-1070626
*/
var Palette, jDataView, read_adobe_color_table, write_adobe_color_table;

jDataView = require("jdataview");

Palette = require("../Palette");

module.exports = read_adobe_color_table = function({data, fileExt}) {
  var j, palette, ref, view;
  palette = new Palette();
  view = new jDataView(data);
  if (!(((ref = view.byteLength) === 768 || ref === 772) || fileExt === "act")) { // because "Fireworks can read ACT files bigger than 768 bytes"
    throw new Error(`file size must be 768 or 772 bytes (saw ${view.byteLength}), OR file extension must be '.act' (saw '.${fileExt}')`);
  }
  for (var j = 0; j < 256; j++) {
    palette.add({
      red: view.getUint8() / 255,
      green: view.getUint8() / 255,
      blue: view.getUint8() / 255
    });
  }
  palette.numberOfColumns = 16; // configurable in Photoshop, but this is the default view, and for instance Visibone and the default swatches rely on this layout
  return palette;
};

module.exports.write = write_adobe_color_table = function(palette) {
  var i, j, view;
  view = new jDataView(256 * 3);
  for (i = j = 0; j < 256; i = ++j) {
    view.writeUint8(palette[i] ? Math.round(palette[i].red * 255) : 0);
    view.writeUint8(palette[i] ? Math.round(palette[i].green * 255) : 0);
    view.writeUint8(palette[i] ? Math.round(palette[i].blue * 255) : 0);
  }
  return view.buffer;
};


},{"../Palette":37,"jdataview":7}],40:[function(require,module,exports){
// Detect CSS colors (except named colors), and write .css/.less/.scss/.sass/.styl files
var Palette, css_escape;

css_escape = require("css.escape");

Palette = require("../Palette");

// TODO: detect names via structures like CSS variables, JSON object keys/values, comments
// TODO: use all colors regardless of format, within a detected structure, or maybe always
module.exports = function({fileContentString}) {
  var char, hex, i, j, len, len1, most_colors, n, n_control_characters, palette, palette_hex_long, palette_hex_short, palette_hsl, palette_hsla, palette_rgb, palette_rgba, palettes;
  n_control_characters = 0;
  for (i = 0, len = fileContentString.length; i < len; i++) {
    char = fileContentString[i];
    if (char === "\x00" || char === "\x01" || char === "\x02" || char === "\x03" || char === "\x04" || char === "\x05" || char === "\x06" || char === "\x07" || char === "\x08" || char === "\x0B" || char === "\x0C" || char === "\x0E" || char === "\x0F" || char === "\x10" || char === "\x11" || char === "\x12" || char === "\x13" || char === "\x14" || char === "\x15" || char === "\x16" || char === "\x17" || char === "\x18" || char === "\x19" || char === "\x1A" || char === "\x1B" || char === "\x1C" || char === "\x1D" || char === "\x1E" || char === "\x1F" || char === "\x7F") {
      n_control_characters++;
    }
  }
  if (n_control_characters > 5) {
    throw new Error("looks like a binary file");
  }
  palettes = [palette_hex_long = new Palette(), palette_hex_short = new Palette(), palette_rgb = new Palette(), palette_hsl = new Palette(), palette_hsla = new Palette(), palette_rgba = new Palette()];
  hex = function(x) {
    return parseInt(x, 16);
  };
  fileContentString.replace(/\#([0-9A-F]{3}|[0-9A-F]{6}|[0-9A-F]{4}|[0-9A-F]{8})(?![0-9A-F])/gim, function(m, $1) { // hashtag # #/
    // three hex-digits (#A0C)
    // six hex-digits (#AA00CC)
    // with alpha, four hex-digits (#A0CF)
    // with alpha, eight hex-digits (#AA00CCFF)
    // (and no more!)
    if ($1.length > 4) {
      return palette_hex_long.add({
        red: hex($1[0] + $1[1]) / 255,
        green: hex($1[2] + $1[3]) / 255,
        blue: hex($1[4] + $1[5]) / 255,
        alpha: $1.length === 8 ? hex($1[6] + $1[7]) / 255 : void 0
      });
    } else {
      return palette_hex_short.add({
        red: hex($1[0] + $1[0]) / 255,
        green: hex($1[1] + $1[1]) / 255,
        blue: hex($1[2] + $1[2]) / 255,
        alpha: $1.length === 4 ? hex($1[3] + $1[3]) / 255 : void 0
      });
    }
  });
  fileContentString.replace(/rgb\(\s*([0-9]*\.?[0-9]+)(%?)\s*(?:,|\s)\s*([0-9]*\.?[0-9]+)(%?)\s*(?:,|\s)\s*([0-9]*\.?[0-9]+)(%?)\s*\)/gim, function(_m, r_val, r_unit, g_val, g_unit, b_val, b_unit) { // red
    // green
    // blue
    return palette_rgb.add({
      red: Number(r_val) / (r_unit === "%" ? 100 : 255),
      green: Number(g_val) / (g_unit === "%" ? 100 : 255),
      blue: Number(b_val) / (b_unit === "%" ? 100 : 255)
    });
  });
  fileContentString.replace(/rgba?\(\s*([0-9]*\.?[0-9]+)(%?)\s*(?:,|\s)\s*([0-9]*\.?[0-9]+)(%?)\s*(?:,|\s)\s*([0-9]*\.?[0-9]+)(%?)\s*(?:,|\/)\s*([0-9]*\.?[0-9]+)(%?)\s*\)/gim, function(_m, r_val, r_unit, g_val, g_unit, b_val, b_unit, a_val, a_unit) { // red
    // green
    // blue
    // alpha
    return palette_rgba.add({
      red: Number(r_val) / (r_unit === "%" ? 100 : 255),
      green: Number(g_val) / (g_unit === "%" ? 100 : 255),
      blue: Number(b_val) / (b_unit === "%" ? 100 : 255),
      alpha: Number(a_val) / (a_unit === "%" ? 100 : 1)
    });
  });
  fileContentString.replace(/hsl\(\s*([0-9]*\.?[0-9]+)(deg|rad|turn|)\s*(?:,|\s)\s*([0-9]*\.?[0-9]+)(%?)\s*(?:,|\s)\s*([0-9]*\.?[0-9]+)(%?)\s*\)/gim, function(_m, h_val, h_unit, s_val, s_unit, l_val, l_unit) { // hue
    // saturation
    // value
    return palette_hsl.add({
      hue: Number(h_val) / (h_unit === "rad" ? 2 * Math.PI : h_unit === "turn" ? 1 : 360),
      saturation: Number(s_val) / (s_unit === "%" ? 100 : 1),
      lightness: Number(l_val) / (l_unit === "%" ? 100 : 1)
    });
  });
  fileContentString.replace(/hsla?\(\s*([0-9]*\.?[0-9]+)(deg|rad|turn|)\s*(?:,|\s)\s*([0-9]*\.?[0-9]+)(%?)\s*(?:,|\s)\s*([0-9]*\.?[0-9]+)(%?)\s*(?:,|\/)\s*([0-9]*\.?[0-9]+)(%?)\s*\)/gim, function(_m, h_val, h_unit, s_val, s_unit, l_val, l_unit, a_val, a_unit) { // hue
    // saturation
    // value
    // alpha
    return palette_hsla.add({
      hue: Number(h_val) / (h_unit === "rad" ? 2 * Math.PI : h_unit === "turn" ? 1 : 360),
      saturation: Number(s_val) / (s_unit === "%" ? 100 : 1),
      lightness: Number(l_val) / (l_unit === "%" ? 100 : 1),
      alpha: Number(a_val) / (a_unit === "%" ? 100 : 1)
    });
  });
  most_colors = [];
  for (j = 0, len1 = palettes.length; j < len1; j++) {
    palette = palettes[j];
    if (palette.length >= most_colors.length) {
      most_colors = palette;
    }
  }
  n = most_colors.length;
  if (n < 4) {
    throw new Error(["No colors found", "Only one color found", "Only a couple colors found", "Only a few colors found"][n] + ` (${n})`);
  }
  return most_colors;
};

module.exports.write_css = function(palette) {
  return `:root {
	${palette.map(function(color, index) {
    return `--${color.name ? css_escape(color.name.replace(/\s/g, "-")) : `color-${index + 1}`}: ${color};`;
  }).join("\n\t")}
}`;
};

module.exports.write_styl = function(palette) {
  return palette.map(function(color, index) {
    return `${color.name ? css_escape(color.name.replace(/\s/g, "-")) : `color-${index + 1}`} = ${color};`;
  }).join("\n");
};

module.exports.write_less = function(palette) {
  return palette.map(function(color, index) {
    return `@${color.name ? css_escape(color.name.replace(/\s/g, "-")) : `color-${index + 1}`}: ${color};`;
  }).join("\n");
};

module.exports.write_scss = function(palette) {
  return palette.map(function(color, index) {
    return `$${color.name ? css_escape(color.name.replace(/\s/g, "-")) : `color-${index + 1}`}: ${color};`;
  }).join("\n");
};

module.exports.write_sass = function(palette) {
  return palette.map(function(color, index) {
    return `$${color.name ? css_escape(color.name.replace(/\s/g, "-")) : `color-${index + 1}`}: ${color}`;
  }).join("\n");
};


},{"../Palette":37,"css.escape":4}],41:[function(require,module,exports){
// Load a ColorSchemer palette (.cs)
var Palette, jDataView;

jDataView = require("jdataview");

Palette = require("../Palette");

module.exports = function({data, fileExt}) {
  var color_count, i, j, littleEndian, palette, ref, version, view;
  if (fileExt !== "cs") {
    throw new Error(`ColorSchemer loader is only enabled when file extension is '.cs' (saw '.${fileExt}' instead)`);
  }
  palette = new Palette();
  littleEndian = true;
  view = new jDataView(data, 0, void 0, littleEndian);
  version = view.getUint16(); // or something
  color_count = view.getUint16();
  for (i = j = 0, ref = color_count; (0 <= ref ? j < ref : j > ref); i = 0 <= ref ? ++j : --j) {
    view.seek(8 + i * 26);
    palette.add({
      red: view.getUint8() / 255,
      green: view.getUint8() / 255,
      blue: view.getUint8() / 255
    });
  }
  return palette;
};


},{"../Palette":37,"jdataview":7}],42:[function(require,module,exports){
// Read/write GIMP palette (.gpl), also used by or supported by many programs, such as Inkscape, Krita,
var Palette, parse_gimp_or_kde_rgb_palette, write_gimp_or_kde_rgb_palette;

Palette = require("../Palette");

parse_gimp_or_kde_rgb_palette = function(fileContentString, format_name) {
  var line, line_index, lines, m, palette, r_g_b_name;
  lines = fileContentString.split(/\r?\n/);
  if (lines[0] !== format_name) {
    throw new Error(`Not a ${format_name}`);
  }
  palette = new Palette();
  line_index = 0;
  // on the first iteration, line_index = 1 because the increment happens at the start of the loop
  while ((line_index += 1) < lines.length) {
    line = lines[line_index];
    if (line[0] === "#" || line === "") {
      continue;
    }
    // TODO: handle non-start-of-line comments? where's the spec?
    m = line.match(/Name:\s*(.*)/);
    if (m) {
      palette.name = m[1];
      continue;
    }
    m = line.match(/Columns:\s*(.*)/);
    if (m) {
      palette.numberOfColumns = Number(m[1]);
      // TODO: handle 0 as not specified? where's the spec at, yo?
      palette.geometrySpecifiedByFile = true;
      continue;
    }
    
    // TODO: replace \s with [\ \t] (spaces or tabs)
    // it can't match \n because it's already split on that, but still
    // TODO: handle line with no name but space on the end
    r_g_b_name = line.match(/^\s*([0-9]+)\s+([0-9]+)\s+([0-9]+)(?:\s+(.*))?$/); // "at the beginning of the line,"
    // "give or take some spaces,"
    // match 3 groups of numbers separated by spaces
    // red
    // green
    // blue
    // optionally a name
    // "and that should be the end of the line"
    if (!r_g_b_name) {
      throw new Error(`Line ${line_index + 1} doesn't match pattern of red green blue name`);
    }
    palette.add({
      red: Number(r_g_b_name[1]) / 255,
      green: Number(r_g_b_name[2]) / 255,
      blue: Number(r_g_b_name[3]) / 255,
      name: r_g_b_name[4]
    });
  }
  return palette;
};

module.exports = function({fileContentString}) {
  return parse_gimp_or_kde_rgb_palette(fileContentString, "GIMP Palette");
};

write_gimp_or_kde_rgb_palette = function(palette, format_name) {
  return `${format_name || "GIMP Palette"}
Name: ${palette.name || "Saved Colors"}
Columns: ${palette.numberOfColumns || 8}
#
${palette.map((color) => {
    var blue, green, red;
    ({red, green, blue} = color);
    return `${[red, green, blue].map((component) => {
      return `${Math.round(component * 255)}`.padEnd(3, " ");
    }).join(" ")}   ${color.name || color}`;
  }).join("\n")}`;
};

module.exports.write = function(palette) {
  return write_gimp_or_kde_rgb_palette(palette, "GIMP Palette");
};

module.exports.extension = "gpl";

module.exports.write_gimp_or_kde_rgb_palette = write_gimp_or_kde_rgb_palette;

module.exports.parse_gimp_or_kde_rgb_palette = parse_gimp_or_kde_rgb_palette;


},{"../Palette":37}],43:[function(require,module,exports){
// Read/write Allaire Homesite / Macromedia ColdFusion palette (.hpl)
var Palette;

Palette = require("../Palette");

module.exports = function({fileContentString}) {
  var i, len, line, lines, match, palette;
  lines = fileContentString.split(/\r?\n/);
  if (lines[0] !== "Palette") {
    throw new Error("Not a Homesite palette");
  }
  if (!lines[1].match(/Version [34]\.0/)) {
    throw new Error("Unsupported Homesite palette version");
  }
  palette = new Palette();
  for (i = 0, len = lines.length; i < len; i++) {
    line = lines[i];
    match = line.match(/(\d+)\s+(\d+)\s+(\d+)/);
    if (match) {
      palette.add({
        red: Number(match[1]) / 255,
        green: Number(match[2]) / 255,
        blue: Number(match[3]) / 255
      });
    }
  }
  return palette;
};

module.exports.write = function(palette) {
  return `Palette
Version 4.0
-----------
${palette.map(function(color) {
    return `${Math.round(color.red * 255)} ${Math.round(color.green * 255)} ${Math.round(color.blue * 255)}`;
  }).join("\n")}`;
};


},{"../Palette":37}],44:[function(require,module,exports){
// Read/write KDE RGB Palette / KolourPaint / KOffice palette (.colors)
var parse_gimp_or_kde_rgb_palette, write_gimp_or_kde_rgb_palette;

({parse_gimp_or_kde_rgb_palette, write_gimp_or_kde_rgb_palette} = require("./GIMP"));

module.exports = function({fileContentString}) {
  return parse_gimp_or_kde_rgb_palette(fileContentString, "KDE RGB Palette");
};

module.exports.write = function(palette) {
  return write_gimp_or_kde_rgb_palette(palette, "KDE RGB Palette");
};

module.exports.extension = "colors";


},{"./GIMP":42}],45:[function(require,module,exports){
// Read/write Paint.NET palette format (.txt)
var Palette;

Palette = require("../Palette");

module.exports = function({fileContentString}) {
  var hex, i, len, line, m, palette, ref;
  palette = new Palette();
  hex = function(x) {
    return parseInt(x, 16);
  };
  ref = fileContentString.split(/\r?\n/);
  for (i = 0, len = ref.length; i < len; i++) {
    line = ref[i];
    m = line.match(/^([0-9A-F]{2})([0-9A-F]{2})([0-9A-F]{2})([0-9A-F]{2})$/i);
    if (m) {
      palette.add({
        alpha: hex(m[1]) / 255,
        red: hex(m[2]) / 255,
        green: hex(m[3]) / 255,
        blue: hex(m[4]) / 255
      });
    }
  }
  return palette;
};

module.exports.write = function(palette) {
  var comments, component_to_hex, stringify_color;
  component_to_hex = function(component) {
    var hex;
    hex = Math.round(component * 255).toString(16);
    if (hex.length === 1) {
      return `0${hex}`;
    } else {
      return hex;
    }
  };
  stringify_color = function(color) {
    var alpha, blue, green, red;
    ({alpha, red, green, blue} = color);
    if (alpha == null) {
      alpha = 1;
    }
    return [alpha, red, green, blue].map(component_to_hex).join("");
  };
  comments = `Paint.NET Palette File
Lines that start with a semicolon are comments
Colors are written as 8-digit hexadecimal numbers: aarrggbb
For example, this would specify green: FF00FF00
The alpha ('aa') value specifies how transparent a color is. FF is fully opaque, 00 is fully transparent.
A palette must consist of ninety six (96) colors. If there are less than this, the remaining color
slots will be set to white (FFFFFFFF). If there are more, then the remaining colors will be ignored.

`;
  if (palette.name) {
    comments += `Palette Name: ${palette.name}\n`;
  }
  if (palette.description) {
    comments += `Description: ${palette.description}\n`;
  }
  comments += `Colors: ${palette.length}\n`;
  if (palette.numberOfColumns) {
    comments += `Columns: ${palette.numberOfColumns}\n`;
  }
  comments = `; ${comments}`.replace(/\n/g, "\n; ").replace(/\s*\n/g, "\n");
  return `${comments}
${palette.map(stringify_color).join("\n")}`;
};


},{"../Palette":37}],46:[function(require,module,exports){
// Read/write JASC PAL file (Paint Shop Pro palette file) (.pal)
var Palette;

Palette = require("../Palette");

module.exports = function({fileContentString}) {
  var i, j, len, line, lines, palette, rgb;
  lines = fileContentString.split(/[\n\r]+/m);
  if (lines[0] !== "JASC-PAL") {
    throw new Error("Not a JASC-PAL");
  }
  if (lines[1] !== "0100") {
    throw new Error("Unknown JASC-PAL version");
  }
  // if lines[2] isnt "256"
  // 	"that's ok"
  palette = new Palette();
//n_colors = Number(lines[2])
  for (i = j = 0, len = lines.length; j < len; i = ++j) {
    line = lines[i];
    if (line !== "" && i > 2) {
      rgb = line.split(" ");
      palette.add({
        red: Number(rgb[0]) / 255,
        green: Number(rgb[1]) / 255,
        blue: Number(rgb[2]) / 255
      });
    }
  }
  return palette;
};

module.exports.write = function(palette) {
  return `JASC-PAL
0100
${palette.length}
${palette.map(function(color) {
    return `${Math.round(color.red * 255)} ${Math.round(color.green * 255)} ${Math.round(color.blue * 255)}`;
  }).join("\n")}`;
};


},{"../Palette":37}],47:[function(require,module,exports){
// Read/write Resource Interchange File Format (RIFF) palette file (.pal)

// ported from C# code at https://worms2d.info/Palette_file
var Palette, jDataView;

jDataView = require("jdataview");

Palette = require("../Palette");

module.exports = function({data}) {
  var chunkSize, chunkType, colorCount, dataSize, i, littleEndian, palVersion, palette, ref, riff, type, view;
  littleEndian = true;
  view = new jDataView(data, 0, void 0, littleEndian);
  
  // RIFF header
  riff = view.getString(4); // "RIFF"
  dataSize = view.getUint32();
  type = view.getString(4); // "PAL "
  if (riff !== "RIFF") {
    throw new Error("RIFF header not found; not a RIFF PAL file");
  }
  if (type !== "PAL ") {
    throw new Error(`RIFF header says this isn't a PAL file,
more of a sort of ${(type + "").trim()} file`);
  }
  
  // Data chunk
  chunkType = view.getString(4); // "data"
  chunkSize = view.getUint32();
  palVersion = view.getUint16(); // 0x0300
  colorCount = view.getUint16();
  if (chunkType !== "data") {
    throw new Error(`Data chunk not found (...'${chunkType}'?)`);
  }
  if (palVersion !== 0x0300) {
    throw new Error(`Unsupported PAL file format version: 0x${palVersion.toString(16)}`);
  }
  
  // Colors
  palette = new Palette();
  for (i = 0, ref = colorCount; (0 <= ref ? i < ref : i > ref); 0 <= ref ? i++ : i--) {
    palette.add({
      red: view.getUint8() / 255,
      green: view.getUint8() / 255,
      blue: view.getUint8() / 255
    });
    view.getUint8(); // "flags", always 0x00
  }
  return palette;
};

module.exports.write = function(palette) {
  var color, data_chunk_body_size, data_chunk_total_size, file_size, file_view, i, len, littleEndian;
  data_chunk_body_size = 2 + 2 + 4 * palette.length; // for the version number (Uint16) // for the color count (Uint16) // for the colors (4x Uint8)
  data_chunk_total_size = 4 + 4 + data_chunk_body_size; // for "data" // for the chunk size (Uint32) // for the data chunk body
  file_size = 4 + 4 + 4 + data_chunk_total_size; // for "RIFF" // for the document size (Uint32) // for "PAL " // for the data chunk
  littleEndian = true;
  file_view = new jDataView(file_size, 0, void 0, littleEndian);
  file_view.writeString("RIFF");
  file_view.writeUint32(data_chunk_total_size + 4);
  file_view.writeString("PAL ");
  file_view.writeString("data");
  file_view.writeUint32(data_chunk_body_size);
  file_view.writeUint16(0x0300); // version number
  file_view.writeUint16(palette.length); // number of colors
  for (i = 0, len = palette.length; i < len; i++) {
    color = palette[i];
    file_view.writeUint8(Math.round(color.red * 255));
    file_view.writeUint8(Math.round(color.green * 255));
    file_view.writeUint8(Math.round(color.blue * 255));
    file_view.writeUint8(0); // "flags"
  }
  return file_view.buffer;
};


},{"../Palette":37,"jdataview":7}],48:[function(require,module,exports){
// Read/write sK1 palettes (.skp)

// These files are actually sort of python source code,
// but let's just try to parse them as if it's a declarative language.

// Normally the format is handled line by line but compiling python code for each line:
// https://github.com/sk1project/uniconvertor/blob/751a4f559bac48ded59028d9b2cf6778d1267a8f/src/uc2/formats/skp/skp_filters.py#L43-L44
var Palette, parse_css_hex_color;

Palette = require("../Palette");

({parse_css_hex_color} = require("../helpers"));

module.exports = function({fileContentString}) {
  var _, args, args_str, fn, fn_name, fns, i, len, line, line_index, lines, match, n, palette, parse_args;
  lines = fileContentString.split(/[\n\r]+/m);
  palette = new Palette();
  fns = {
    set_name: function(name) {
      return palette.name = name;
    },
    // set_source: (source)-> palette.source = source
    add_comments: function(line) {
      if (palette.description == null) {
        palette.description = "";
      }
      if (palette.description.length > 0) {
        palette.description += "\n";
      }
      return palette.description += line;
    },
    set_columns: function(columns) {
      palette.numberOfColumns = columns;
      return palette.geometrySpecifiedByFile = true;
    },
    hexcolor: function(hexcolor, name) {
      var color;
      // TODO: find example palettes with hexcolor()
      // I think adding # is unnesessary
      color = parse_css_hex_color("#" + hexcolor);
      color.name = name;
      return palette.add(color);
    },
    rgbcolor: function(red, green, blue, name) {
      // TODO: find example palettes with rgbcolor()
      return palette.add({
        red: red / 255,
        green: green / 255,
        blue: blue / 255,
        name: name
      });
    },
    color: function([color_type, components, alpha, name]) {
      switch (color_type) {
        case "RGB":
          return palette.add({
            red: components[0],
            green: components[1],
            blue: components[2],
            alpha: alpha,
            name: name
          });
        case "Grayscale":
          return palette.add({
            red: components[0],
            green: components[0],
            blue: components[0],
            alpha: alpha,
            name: name
          });
        case "CMYK":
          return palette.add({
            cyan: components[0],
            magenta: components[1],
            yellow: components[2],
            key: components[3],
            alpha: alpha,
            name: name
          });
        case "HSL":
          return palette.add({
            hue: components[0],
            saturation: components[1],
            lightness: components[2],
            alpha: alpha,
            name: name
          });
      }
    }
  };
  parse_args = function(args_str, line_number) {
    var args, index, parse_array, parse_number, parse_string, ref, ref1;
    // JSON.parse("[#{args_str.replace(/\bu(['"])/g, "$1").replace(/"/g, '\\"').replace(/'/g, '"')}]")
    // TODO: proper parsing that handles u"You've got mail!" etc.
    args = [];
    index = 0;
    parse_string = function() {
      var quote_char, str;
      str = "";
      quote_char = args_str[index];
      if (quote_char !== "'" && quote_char !== '"') {
        throw new Error("Expected to start parsing string on a quote character");
      }
      index += 1;
      while (index < args_str.length) {
        if (args_str[index] === "\\") {
          index += 1;
          if (args_str[index] === "\\") {
            str += "\\";
          } else if (args_str[index] === "r") {
            str += "\r";
          } else if (args_str[index] === "n") {
            str += "\n";
          } else if (args_str[index] === "t") {
            str += "\t";
          } else if (args_str[index] === "v") {
            str += "\v";
          } else if (args_str[index] === "a") {
            str += "\a";
          } else if (args_str[index] === "b") {
            str += "\b";
          } else if (args_str[index] === "'") {
            str += "'";
          } else if (args_str[index] === '"') {
            str += '"';
          } else if (args_str[index].match(/\d/)) {

          // TODO: handle octal escape
          } else if (args_str[index] === "x") {

          // TODO: handle hex escape
          } else if (args_str[index] === "N") {

          // TODO: character by Unicode name
          } else if (args_str[index] === "u") {

          // TODO: character with 16-bit hex value (four hexadecimal digits).
          } else if (args_str[index] === "U") {

          } else {
            // TODO: character with 32-bit hex value (eight hexadecimal digits).
            console.log(`Warning: unecessary escape in python string: \\${args_str[index]}`);
            str += args_str[index];
          }
        } else if (args_str[index] === quote_char) {
          return str;
        } else {
          str += args_str[index];
        }
        index += 1;
      }
      throw new SyntaxError(`Expected end of string on line ${line_number}`);
    };
    parse_number = function() {
      var num_str;
      // not super robust - 127.0.0.1 is just a number, right?
      // could be done a lot simpler too with a single regexp match
      num_str = "";
      while (index < args_str.length) {
        if (args_str[index].match(/[\d\.]/)) {
          num_str += args_str[index];
        } else {
          break;
        }
        index += 1;
      }
      index -= 1;
      return parseFloat(num_str);
    };
    parse_array = function() {
      var ref, ref1, values;
      index += 1;
      values = [];
      while (index < args_str.length) {
        if (args_str[index] === "u") {
          index += 1;
          if ((ref = args_str[index]) === "'" || ref === '"') {
            values.push(parse_string());
          } else {
            throw new SyntaxError(`Unexpected 'u${args_str.slice(index)}' on line ${line_number}`);
          }
        } else if ((ref1 = args_str[index]) === "'" || ref1 === '"') {
          values.push(parse_string());
        } else if (args_str[index] === "[") {
          values.push(parse_array());
        } else if (args_str[index].match(/\d/)) {
          values.push(parse_number());
        } else if (args_str[index] === "]") {
          return values;
        } else if (args_str[index] === ",") {

        // not keeping track of commas, you could duplicate or omit them and we'd still parse
        } else if (args_str[index].match(/\S/)) {
          throw new SyntaxError(`Unexpected '${args_str.slice(index)}' on line ${line_number}`);
        }
        index += 1;
      }
      throw new SyntaxError(`Expected end of array on line ${line_number}`);
    };
    while (index < args_str.length) {
      if (args_str[index] === "u") {
        index += 1;
        if ((ref = args_str[index]) === "'" || ref === '"') {
          args.push(parse_string());
        } else {
          throw new SyntaxError(`Unexpected 'u${args_str.slice(index)}' on line ${line_number}`);
        }
      } else if ((ref1 = args_str[index]) === "'" || ref1 === '"') {
        args.push(parse_string());
      } else if (args_str[index] === "[") {
        args.push(parse_array());
      } else if (args_str[index].match(/\d/)) {
        args.push(parse_number());
      } else if (args_str[index] === ",") {

      // not keeping track of commas, you could duplicate or omit them and we'd still parse
      } else if (args_str[index].match(/\S/)) {
        throw new SyntaxError(`Unexpected '${args_str.slice(index)}' on line ${line_number}`);
      }
      index += 1;
    }
    return args;
  };
  for (line_index = i = 0, len = lines.length; i < len; line_index = ++i) {
    line = lines[line_index];
    match = line.match(/([\w_]+)\((.*)\)/);
    if (match) {
      [_, fn_name, args_str] = match;
      fn = fns[fn_name];
      if (fn) {
        args = parse_args(args_str, line_index + 1);
        fn(...args);
      }
    }
  }
  n = palette.length;
  if (n < 2) {
    throw new Error(["No colors found", "Only one color found"][n] + ` (${n})`);
  }
  return palette;
};

module.exports.write = function(palette) {
  var alpha, color, color_type, components, i, item, j, len, len1, name, ref, ref1, ref2, serialize_str, str;
  serialize_str = function(str) {
    return `'${str.replace(/[\r\n]+/g, " ").replace(/'/g, "\\'")}'`;
  };
  str = "##sK1 palette\n";
  str += "palette()\n";
  if (palette.name) {
    str += `set_name(${serialize_str(palette.name)})\n`;
  }
  if (palette.source) {
    str += `set_source(${serialize_str(palette.source)})\n`;
  }
  if (palette.description) {
    ref = palette.description.split(/\r?\n/g);
    for (i = 0, len = ref.length; i < len; i++) {
      item = ref[i];
      str += `add_comments(${serialize_str(item)})\n`;
    }
  }
  if (palette.numberOfColumns) {
    str += `set_columns(${palette.numberOfColumns})\n`;
  }
  for (j = 0, len1 = palette.length; j < len1; j++) {
    color = palette[j];
    if (color.hue != null) {
      color_type = "HSL";
      components = [color.hue, color.saturation, color.lightness];
    } else {
      color_type = "RGB";
      components = [color.red, color.green, color.blue];
    }
    alpha = (ref1 = color.alpha) != null ? ref1 : 1;
    name = (ref2 = color.name) != null ? ref2 : color.toString();
    str += `color([${serialize_str(color_type)}, [${components.join(", ")}], ${alpha}, ${serialize_str(name)}])\n`;
  }
  str += "palette_end()\n";
  return str;
};


},{"../Palette":37,"../helpers":56}],49:[function(require,module,exports){
// Read/write Skencil palette (.spl) ("Sketch RGBPalette")
// Skencil was formerly called Sketch, but this is not related to the .sketchpalette format.
var Palette;

Palette = require("../Palette");

module.exports = function({fileContentString}) {
  var i, len, line, line_index, lines, palette, r_g_b_name;
  lines = fileContentString.split(/[\n\r]+/m);
  if (lines[0] !== "##Sketch RGBPalette 0") {
    throw new Error("Not a Skencil palette");
  }
  palette = new Palette();
  for (line_index = i = 0, len = lines.length; i < len; line_index = ++i) {
    line = lines[line_index];
    if (line[0] === "#" || line === "") {
      continue;
    }
    // TODO: handle non-start-of-line comments? where's the spec?

    // TODO: replace \s with [\ \t] (spaces or tabs)
    // it can't match \n because it's already split on that, but still
    // TODO: handle line with no name but space on the end
    r_g_b_name = line.match(/^\s*([0-9]*\.?[0-9]+)\s+([0-9]*\.?[0-9]+)\s+([0-9]*\.?[0-9]+)(?:\s+(.*))?$/); // at the beginning of the line,
    // perhaps with some leading spaces
    // match 3 groups of numbers separated by spaces
    // red
    // green
    // blue
    // optionally a name
    // "and that should be the end of the line"
    if (!r_g_b_name) {
      throw new Error(`Line ${line_index + 1} doesn't match pattern of red green blue name`);
    }
    palette.add({
      red: Number(r_g_b_name[1]),
      green: Number(r_g_b_name[2]),
      blue: Number(r_g_b_name[3]),
      name: r_g_b_name[4]
    });
  }
  return palette;
};

module.exports.write = function(palette) {
  return `##Sketch RGBPalette 0
${palette.map(function(color) {
    var ref;
    return `${color.red.toFixed(6)} ${color.green.toFixed(6)} ${color.blue.toFixed(6)} ${(ref = color.name) != null ? ref : color}`;
  }).join("\n")}`;
};


},{"../Palette":37}],50:[function(require,module,exports){
// Read/write StarCraft raw palette (.pal)
var Palette, jDataView;

jDataView = require("jdataview");

Palette = require("../Palette");

module.exports = function({data}) {
  var j, palette, view;
  palette = new Palette();
  view = new jDataView(data);
  if (view.byteLength !== 768) {
    throw new Error(`Wrong file size, must be ${768} bytes long (not ${view.byteLength})`);
  }
  for (var j = 0; j < 256; j++) {
    palette.add({
      red: view.getUint8() / 255,
      green: view.getUint8() / 255,
      blue: view.getUint8() / 255
    });
  }
  // no padding

  //? palette.numberOfColumns = 16
  return palette;
};

module.exports.write = function(palette) {
  var i, j, view;
  view = new jDataView(256 * 3);
  for (i = j = 0; j < 256; i = ++j) {
    view.writeUint8(palette[i] ? Math.round(palette[i].red * 255) : 0);
    view.writeUint8(palette[i] ? Math.round(palette[i].green * 255) : 0);
    view.writeUint8(palette[i] ? Math.round(palette[i].blue * 255) : 0);
  }
  return view.buffer;
};


},{"../Palette":37,"jdataview":7}],51:[function(require,module,exports){
// Read/write StarCraft padded raw palette (.wpe)
var Palette, jDataView;

jDataView = require("jdataview");

Palette = require("../Palette");

module.exports = function({data}) {
  var j, palette, view;
  palette = new Palette();
  view = new jDataView(data);
  if (view.byteLength !== 1024) {
    throw new Error(`Wrong file size, must be ${1024} bytes long (not ${view.byteLength})`);
  }
  for (var j = 0; j < 256; j++) {
    palette.add({
      red: view.getUint8() / 255,
      green: view.getUint8() / 255,
      blue: view.getUint8() / 255
    });
    view.getUint8(); // padding
  }
  palette.numberOfColumns = 16;
  return palette;
};

module.exports.write = function(palette) {
  var i, j, view;
  view = new jDataView(256 * 4);
  for (i = j = 0; j < 256; i = ++j) {
    view.writeUint8(palette[i] ? Math.round(palette[i].red * 255) : 0);
    view.writeUint8(palette[i] ? Math.round(palette[i].green * 255) : 0);
    view.writeUint8(palette[i] ? Math.round(palette[i].blue * 255) : 0);
    view.writeUint8(0); // padding
  }
  return view.buffer;
};


},{"../Palette":37,"jdataview":7}],52:[function(require,module,exports){
// Read/write StarOffice / OpenOffice / LibreOffice palette (.soc)
var Palette, convert, parse_css_hex_color, write_soc;

convert = require("xml-js");

Palette = require("../Palette");

({parse_css_hex_color} = require("../helpers"));

module.exports.read_soc = function({fileContentString}) {
  var child, color_options, element, i, j, len, len1, palette, parsed, ref, ref1, ref2, ref3, ref4;
  if (!fileContentString.match(/^\s*<\?\s*xml/i)) { // I doubt space is actually allowed between <? and xml
    throw new Error("not a StarOffice palette (no <?xml...?> declaration)");
  }
  palette = new Palette();
  parsed = convert.xml2js(fileContentString, {
    compact: false
  });
  if (!((ref = parsed.elements) != null ? ref.length : void 0)) {
    throw new Error("No XML elements found");
  }
  ref1 = parsed.elements;
  for (i = 0, len = ref1.length; i < len; i++) {
    element = ref1[i];
    if (((ref2 = element.name) != null ? ref2.match(/:color-table$/) : void 0) && element.elements) {
      ref3 = element.elements;
      for (j = 0, len1 = ref3.length; j < len1; j++) {
        child = ref3[j];
        if (!(child.name === "draw:color" && ((ref4 = child.attributes["draw:color"]) != null ? ref4.match(/#/) : void 0))) {
          continue;
        }
        // TODO: probably can be any CSS color
        color_options = parse_css_hex_color(child.attributes["draw:color"]);
        color_options.name = child.attributes["draw:name"];
        palette.add(color_options);
      }
    }
  }
  return palette;
};

write_soc = function(palette, modern) {
  var color, component_to_hex, to_css_hex_color;
  component_to_hex = function(component) {
    var hex;
    hex = Math.round(component * 255).toString(16);
    if (hex.length === 1) {
      return `0${hex}`;
    } else {
      return hex;
    }
  };
  to_css_hex_color = function(color) {
    var blue, green, red;
    ({red, green, blue} = color);
    return "#" + [red, green, blue].map(component_to_hex).join("");
  };
  return convert.js2xml({
    declaration: {
      attributes: {
        version: "1.0",
        encoding: "UTF-8"
      }
    },
    elements: [
      {
        // {
        //  	type: "comment"
        //  	comment: ""
        // }
        type: "element",
        name: modern ? "ooo:color-table" : "office:color-table",
        attributes: modern ? {
          "xmlns:office": "urn:oasis:names:tc:opendocument:xmlns:office:1.0",
          "xmlns:draw": "urn:oasis:names:tc:opendocument:xmlns:drawing:1.0",
          "xmlns:xlink": "http://www.w3.org/1999/xlink",
          "xmlns:svg": "http://www.w3.org/2000/svg",
          "xmlns:ooo": "http://openoffice.org/2004/office"
        } : {
          "xmlns:form": "http://openoffice.org/2000/form",
          "xmlns:number": "http://openoffice.org/2000/datastyle",
          "xmlns:xlink": "http://www.w3.org/1999/xlink",
          "xmlns:office": "http://openoffice.org/2000/office",
          "xmlns:meta": "http://openoffice.org/2000/meta",
          "xmlns:math": "http://www.w3.org/1998/Math/MathML",
          "xmlns:svg": "http://www.w3.org/2000/svg",
          "xmlns:dr3d": "http://openoffice.org/2000/dr3d",
          "xmlns:text": "http://openoffice.org/2000/text",
          "xmlns:style": "http://openoffice.org/2000/style",
          "xmlns:script": "http://openoffice.org/2000/script",
          "xmlns:chart": "http://openoffice.org/2000/chart",
          "xmlns:draw": "http://openoffice.org/2000/drawing",
          "xmlns:table": "http://openoffice.org/2000/table",
          "xmlns:fo": "http://www.w3.org/1999/XSL/Format",
          "xmlns:config": "http://openoffice.org/2001/config",
          "xmlns:dc": "http://purl.org/dc/elements/1.1/"
        },
        elements: (function() {
          var i,
      len,
      results;
          results = [];
          for (i = 0, len = palette.length; i < len; i++) {
            color = palette[i];
            results.push({
              type: "element",
              name: "draw:color",
              attributes: {
                "draw:name": color.name || color.toString(),
                "draw:color": to_css_hex_color(color)
              }
            });
          }
          return results;
        })()
      }
    ]
  }, {
    spaces: "\t"
  });
};

module.exports.write_staroffice_soc = function(palette) {
  return write_soc(palette, false);
};

// I assume this is the format used by OpenOffice.org as well, given the ooo namespace
module.exports.write_libreoffice_soc = function(palette) {
  return write_soc(palette, true);
};


},{"../Palette":37,"../helpers":56,"xml-js":30}],53:[function(require,module,exports){
// Read/write Sketch App JSON palette (.sketchpalette)
// (not related to .spl Sketch RGB Palette format)

// based on https://github.com/andrewfiorillo/sketch-palettes/blob/5b6bfa6eb25cb3244a9e6a226df259e8fb31fc2c/Sketch%20Palettes.sketchplugin/Contents/Sketch/sketchPalettes.js
var Palette, parse_css_hex_color, version;

Palette = require("../Palette");

({parse_css_hex_color} = require("../helpers"));

version = 1.4;

module.exports = function({fileContentString}) {
  var colorAssets, colorDefinitions, color_definition, compatibleVersion, gradientAssets, hex_color, i, images, j, len, len1, palette, paletteContents, ref;
  if (!fileContentString.match(/^\s*{/)) {
    throw new Error("not sketchpalette JSON");
  }
  paletteContents = JSON.parse(fileContentString);
  compatibleVersion = paletteContents.compatibleVersion;
  // Check for presets in file, else set to empty array
  colorDefinitions = (ref = paletteContents.colors) != null ? ref : [];
  // gradientDefinitions = paletteContents.gradients ? []
  // imageDefinitions = paletteContents.images ? []
  colorAssets = [];
  gradientAssets = [];
  images = [];
  palette = new Palette();
  // Check if plugin is out of date and incompatible with a newer palette version
  if (compatibleVersion && compatibleVersion > version) {
    throw new Error(`Can't handle compatibleVersion of ${compatibleVersion}.`);
  }
  // Check for older hex code palette version
  if (!compatibleVersion || compatibleVersion < 1.4) {
// Convert hex colors
    for (i = 0, len = colorDefinitions.length; i < len; i++) {
      hex_color = colorDefinitions[i];
      palette.add(parse_css_hex_color(hex_color));
    }
  } else {
    // Color Fills: convert rgba colors
    if (colorDefinitions.length > 0) {
      for (j = 0, len1 = colorDefinitions.length; j < len1; j++) {
        color_definition = colorDefinitions[j];
        palette.add(color_definition);
      }
    }
  }
  // # Pattern Fills: convert base64 strings to MSImageData objects
  // if imageDefinitions.length > 0
  // 	for imageDefinition in imageDefinitions
  // 		nsdata = NSData.alloc().initWithBase64EncodedString_options(imageDefinition.data, 0)
  // 		nsimage = NSImage.alloc().initWithData(nsdata)
  // 		# msimage = MSImageData.alloc().initWithImageConvertingColorSpace(nsimage)
  // 		msimage = MSImageData.alloc().initWithImage(nsimage)
  // 		images.push(msimage)

  // # Gradient Fills: build MSGradientStop and MSGradient objects
  // if gradientDefinitions.length > 0
  // 	for gradient in gradientDefinitions
  // 		# Create gradient stops
  // 		stops = []
  // 		for stop in gradient.stops
  // 			color = MSColor.colorWithRed_green_blue_alpha(
  // 				stop.color.red,
  // 				stop.color.green,
  // 				stop.color.blue,
  // 				stop.color.alpha
  // 			)
  // 			stops.push(MSGradientStop.stopWithPosition_color_(stop.position, color))

  // 		# Create gradient object and set basic properties
  // 		msgradient = MSGradient.new()
  // 		msgradient.setGradientType(gradient.gradientType)
  // 		# msgradient.shouldSmoothenOpacity = gradient.shouldSmoothenOpacity
  // 		msgradient.elipseLength = gradient.elipseLength
  // 		msgradient.setStops(stops)

  // 		# Parse From and To values into arrays e.g.: from: "{0.1,-0.43}" => fromValue = [0.1, -0.43]
  // 		fromValue = gradient.from.slice(1,-1).split(",")
  // 		toValue = gradient.to.slice(1,-1).split(",")

  // 		# Set CGPoint objects as From and To values
  // 		msgradient.setFrom({ x: fromValue[0], y: fromValue[1] })
  // 		msgradient.setTo({ x: toValue[0], y: toValue[1] })

  // 		gradientName = gradient.name ? null
  // 		gradientAssets.push(MSGradientAsset.alloc().initWithAsset_name(msgradient, gradientName))
  return palette;
};

module.exports.write = function(palette) {
  return JSON.stringify({
    "compatibleVersion": "1.4",
    "pluginVersion": "1.4",
    "colors": palette.map(function(color) {
      var alpha, blue, green, red;
      ({red, green, blue, alpha} = color);
      if (alpha == null) {
        alpha = 1;
      }
      return {red, green, blue, alpha};
    })
  }, null, "\t");
};

module.exports.extension = "sketchpalette";


},{"../Palette":37,"../helpers":56}],54:[function(require,module,exports){
// Load tabular RGB values
var Palette;

Palette = require("../Palette");

module.exports = function({fileContentString}) {
  var csv_palette, i, j, len, len1, line, lines, most_colors, n, palette, palettes, ssv_palette, try_parse_line;
  lines = fileContentString.split(/[\n\r]+/m);
  palettes = [csv_palette = new Palette(), ssv_palette = new Palette()];
  try_parse_line = function(line, palette, regexp) {
    var match;
    match = line.match(regexp);
    if (match) {
      return palette.add({
        red: Number(match[1]) / 255,
        green: Number(match[2]) / 255,
        blue: Number(match[3]) / 255
      });
    }
  };
  for (i = 0, len = lines.length; i < len; i++) {
    line = lines[i];
    try_parse_line(line, csv_palette, /([0-9]*\.?[0-9]+),\s*([0-9]*\.?[0-9]+),\s*([0-9]*\.?[0-9]+)/);
    try_parse_line(line, ssv_palette, /([0-9]*\.?[0-9]+)\s+([0-9]*\.?[0-9]+)\s+([0-9]*\.?[0-9]+)/);
  }
  most_colors = [];
  for (j = 0, len1 = palettes.length; j < len1; j++) {
    palette = palettes[j];
    if (palette.length >= most_colors.length) {
      most_colors = palette;
    }
  }
  n = most_colors.length;
  if (n < 4) {
    throw new Error(["No colors found", "Only one color found", "Only a couple colors found", "Only a few colors found"][n] + ` (${n})`);
  }
  if (most_colors.every(function(color) {
    return color.red <= 1 / 255 && color.green <= 1 / 255 && color.blue <= 1 / 255;
  })) {
    most_colors.forEach(function(color) {
      color.red *= 255;
      color.green *= 255;
      return color.blue *= 255;
    });
  }
  return most_colors;
};


},{"../Palette":37}],55:[function(require,module,exports){
// Load Windows .theme and .themepack files
var Palette, parseINIString, parseThemeFileString;

Palette = require("../Palette");

parseINIString = function(fileContentString) {
  var lines, regex, section, value;
  regex = {
    section: /^\s*\[\s*([^\]]*)\s*\]\s*$/,
    param: /^\s*([^=]+?)\s*=\s*(.*?)\s*$/,
    comment: /^\s*;.*$/
  };
  value = {};
  lines = fileContentString.split(/[\r\n]+/);
  section = null;
  lines.forEach(function(line) {
    var match;
    if (regex.comment.test(line)) {
      return;
    } else if (regex.param.test(line)) {
      match = line.match(regex.param);
      if (section) {
        value[section][match[1]] = match[2];
      } else {
        value[match[1]] = match[2];
      }
    } else if (regex.section.test(line)) {
      match = line.match(regex.section);
      value[match[1]] = {};
      section = match[1];
    } else if (line.length === 0 && section) {
      section = null;
    }
  });
  return value;
};

parseThemeFileString = function(themeIni) {
  var colors, component, components, i, j, key, len, palette, ref, theme;
  // .theme is a renamed .ini text file
  // .themepack is a renamed .cab file, and parsing it as .ini seems to work well enough for the most part, as the .ini data appears in plain,
  // but it may not if compression is enabled for the .cab file
  theme = parseINIString(themeIni);
  colors = theme["Control Panel\\Colors"];
  if (!colors) {
    throw new Error("Invalid theme file, no [Control Panel\\Colors] section");
  }
  palette = new Palette();
  for (key in colors) {
    // for .themepack file support, just ignore bad keys that were parsed
    if (!key.match(/\W/)) {
      components = colors[key].split(" ");
      if (components.length === 3) {
        for (i = j = 0, len = components.length; j < len; i = ++j) {
          component = components[i];
          components[i] = parseInt(component, 10);
        }
        if (components.every(function(component) {
          return isFinite(component);
        })) {
          palette.add({
            red: components[0] / 255,
            green: components[1] / 255,
            blue: components[2] / 255,
            name: key
          });
        }
      }
    }
  }
  palette.name = (ref = theme["Theme"]) != null ? ref.DisplayName : void 0; // or theme["General"]?.Name for KDE .colors
  return palette;
};

module.exports = function({fileContentString}) {
  return parseThemeFileString(fileContentString);
};


},{"../Palette":37}],56:[function(require,module,exports){
// TODO: DRY with CSS.coffee
module.exports.parse_css_hex_color = function(hex_color) {
  var $0, $1, hex, match;
  hex = function(x) {
    return parseInt(x, 16);
  };
  match = hex_color.match(/\#([0-9A-F]{3}|[0-9A-F]{6}|[0-9A-F]{4}|[0-9A-F]{8})(?![0-9A-F])/im); // hashtag # #/
  // three hex-digits (#A0C)
  // six hex-digits (#AA00CC)
  // with alpha, four hex-digits (#A0CF)
  // with alpha, eight hex-digits (#AA00CCFF)
  // (and no more!)
  [$0, $1] = match;
  if ($1.length > 4) {
    return {
      red: hex($1[0] + $1[1]) / 255,
      green: hex($1[2] + $1[3]) / 255,
      blue: hex($1[4] + $1[5]) / 255,
      alpha: $1.length === 8 ? hex($1[6] + $1[7]) / 255 : void 0
    };
  } else {
    return {
      red: hex($1[0] + $1[0]) / 255,
      green: hex($1[1] + $1[1]) / 255,
      blue: hex($1[2] + $1[2]) / 255,
      alpha: $1.length === 4 ? hex($1[3] + $1[3]) / 255 : void 0
    };
  }
};


},{}],57:[function(require,module,exports){
var AnyPalette, Color, LoadingErrors, Palette, format, format_id, formats, k, len, normalize_options, read_palette, ref,
  splice = [].splice;

Palette = require("./Palette");

Color = require("./Color");

LoadingErrors = class LoadingErrors extends Error {
  constructor(errors1) {
    var error;
    super();
    this.errors = errors1;
    this.message = "Some errors were encountered when loading:" + (function() {
      var k, len, ref, results;
      ref = this.errors;
      results = [];
      for (k = 0, len = ref.length; k < len; k++) {
        error = ref[k];
        results.push("\n\t" + error.message);
      }
      return results;
    }).call(this);
  }

};

// Formats are sorted by file extension if available,
// but it's not always available, and some formats use the same extensions.
// More generic formats should go at the bottom.
formats = {
  PAINT_SHOP_PRO_PALETTE: {
    name: "Paint Shop Pro palette",
    fileExtensions: ["psppalette", "pal"],
    readFromText: require("./formats/PaintShopPro"),
    write: (require("./formats/PaintShopPro")).write
  },
  RIFF_PALETTE: {
    name: "RIFF PAL",
    fileExtensions: ["pal"],
    read: require("./formats/RIFF"),
    write: (require("./formats/RIFF")).write
  },
  COLORSCHEMER_PALETTE: {
    name: "ColorSchemer palette",
    fileExtensions: ["cs"],
    read: require("./formats/ColorSchemer")
  },
  PAINTDOTNET_PALETTE: {
    name: "Paint.NET palette",
    fileExtensions: ["txt"],
    readFromText: require("./formats/Paint.NET"),
    write: (require("./formats/Paint.NET")).write
  },
  GIMP_PALETTE: {
    name: "GIMP palette",
    fileExtensions: ["gpl", "gimp", "colors"],
    readFromText: require("./formats/GIMP"),
    write: (require("./formats/GIMP")).write
  },
  KDE_RGB_PALETTE: {
    name: "KolourPaint palette",
    fileExtensions: ["colors"],
    readFromText: require("./formats/KolourPaint"),
    write: (require("./formats/KolourPaint")).write
  },
  SKENCIL_PALETTE: {
    name: "Skencil palette",
    fileExtensions: ["spl"],
    readFromText: require("./formats/SPL"),
    write: (require("./formats/SPL")).write
  },
  SKETCH_JSON_PALETTE: {
    name: "Sketch palette",
    fileExtensions: ["sketchpalette"],
    readFromText: require("./formats/sketchpalette"),
    write: (require("./formats/sketchpalette")).write
  },
  SK1_PALETTE: {
    name: "sK1 palette",
    fileExtensions: ["skp"],
    readFromText: require("./formats/SKP"),
    write: (require("./formats/SKP")).write
  },
  WINDOWS_THEME_COLORS: {
    name: "Windows desktop theme",
    fileExtensions: ["theme", "themepack"],
    readFromText: require("./formats/theme")
  },
  ADOBE_SWATCH_EXCHANGE_PALETTE: {
    name: "Adobe Swatch Exchange",
    fileExtensions: ["ase"],
    read: (require("./formats/Adobe")).read_adobe_swatch_exchange,
    write: (require("./formats/Adobe")).write_adobe_swatch_exchange
  },
  ADOBE_COLOR_BOOK_PALETTE: {
    name: "Adobe Color Book",
    fileExtensions: ["acb"],
    read: (require("./formats/Adobe")).read_adobe_color_book
  },
  STAROFFICE_PALETTE: {
    name: "StarOffice Colors",
    fileExtensions: ["soc"],
    readFromText: (require("./formats/StarOffice")).read_soc,
    write: (require("./formats/StarOffice")).write_libreoffice_soc
  },
  // KDE_THEME_COLORS: {
  // 	name: "KDE desktop theme"
  // 	fileExtensions: ["colors"]
  // 	read: require "./formats/theme"
  // }
  CSS_VARIABLES: {
    name: "CSS variables",
    fileExtensions: ["css"],
    write: (require("./formats/CSS")).write_css
  },
  SCSS_VARIABLES: {
    name: "SCSS variables",
    fileExtensions: ["scss"],
    write: (require("./formats/CSS")).write_scss
  },
  SASS_VARIABLES: {
    name: "SASS variables",
    fileExtensions: ["sass"],
    write: (require("./formats/CSS")).write_sass
  },
  LESS_VARIABLES: {
    name: "LESS variables",
    fileExtensions: ["less"],
    write: (require("./formats/CSS")).write_less
  },
  STYLUS_VARIABLES: {
    name: "Stylus variables",
    fileExtensions: ["styl"],
    write: (require("./formats/CSS")).write_styl
  },
  CSS_COLORS: {
    name: "CSS colors",
    fileExtensions: ["css", "scss", "sass", "less", "styl", "html", "htm", "svg", "js", "ts", "xml", "txt"],
    readFromText: require("./formats/CSS")
  },
  HOMESITE_PALETTE: {
    name: "Homesite palette",
    fileExtensions: ["hpl"],
    readFromText: require("./formats/Homesite"),
    write: (require("./formats/Homesite")).write
  },
  ADOBE_COLOR_SWATCH_PALETTE: {
    name: "Adobe Color Swatch",
    fileExtensions: ["aco"],
    read: (require("./formats/Adobe")).read_adobe_color_swatch,
    write: (require("./formats/Adobe")).write_adobe_color_swatch
  },
  ADOBE_COLOR_TABLE_PALETTE: {
    name: "Adobe Color Table",
    fileExtensions: ["act"],
    read: require("./formats/AdobeColorTable"),
    write: (require("./formats/AdobeColorTable")).write
  },
  STARCRAFT_PALETTE: {
    name: "StarCraft palette",
    fileExtensions: ["pal"],
    read: require("./formats/StarCraft"),
    write: (require("./formats/StarCraft")).write
  },
  STARCRAFT_PADDED: {
    name: "StarCraft terrain palette",
    fileExtensions: ["wpe"],
    read: require("./formats/StarCraftPadded"),
    write: (require("./formats/StarCraftPadded")).write
  },
  // AUTOCAD_COLOR_BOOK_PALETTE: {
  // 	name: "AutoCAD Color Book"
  // 	fileExtensions: ["acb"]
  // 	readFromText?: require "./formats/AutoCADColorBook"
  // }

  // CORELDRAW_PALETTE: {
  // 	# (same as Paint Shop Pro palette?)
  // 	name: "CorelDRAW palette"
  // 	fileExtensions: ["pal", "cpl"]
  // 	readFromText?: require "./formats/CorelDRAW"
  // }
  TABULAR: {
    name: "tabular colors",
    fileExtensions: ["csv", "tsv", "txt"],
    readFromText: require("./formats/tabular")
  }
};

ref = Object.keys(formats);
for (k = 0, len = ref.length; k < len; k++) {
  format_id = ref[k];
  format = formats[format_id];
  format.fileExtensionsPretty = `.${format.fileExtensions.join(", .")}`;
}

read_palette = function(o, callback) {
  var e, err, errors, format_ids, l, len1, len2, m, matching_ext, msg, palette, ref1;
  o.fileContentString = typeof o.data === "string" ? o.data : new TextDecoder().decode(o.data);
  // find formats that use this file extension
  matching_ext = {};
  ref1 = Object.keys(formats);
  for (l = 0, len1 = ref1.length; l < len1; l++) {
    format_id = ref1[l];
    if (formats[format_id].fileExtensions.indexOf(o.fileExt) > -1) {
      matching_ext[format_id] = true;
    }
  }
  
  // sort formats to the beginning that use this file extension
  format_ids = Object.keys(formats);
  format_ids.sort(function(format_id_1, format_id_2) {
    return (matching_ext[format_id_2] != null) - (matching_ext[format_id_1] != null);
  });
  
  // try loading stuff
  errors = [];
  for (m = 0, len2 = format_ids.length; m < len2; m++) {
    format_id = format_ids[m];
    format = formats[format_id];
    if (!(format.read || format.readFromText)) {
      continue; // skip this format
    }
    try {
      if (format.readFromText) {
        palette = format.readFromText(o);
      } else {
        palette = format.read(o);
      }
      if (palette.length === 0) {
        palette = null;
        throw new Error("no colors returned");
      }
    } catch (error1) {
      e = error1;
      // TODO: should this be "failed to read"?
      msg = `failed to load ${o.fileName} as ${format.name}: ${e.message}`;
      // msg = "failed to load #{o.fileName} as #{format.name}: #{if format_id.match(/staroffice/i) then e.stack else e.message}"
      // if matching_ext[format_id]? #and not e.message.match(/not a/i) # meant to avoid "Not a <FORMAT> Palette", overly broad
      // 	console?.error? msg
      // else
      // 	console?.warn? msg

      // TODO: maybe this shouldn't be an Error object, just a {message, error} object
      // or {friendlyMessage, error}
      err = new Error(msg);
      err.error = e;
      err.__PATCHED_LIB_TO_ADD_THIS__format = format;
      errors.push(err);
    }
    if (palette) {
      // console?.info? "loaded #{o.fileName} as #{format.name}"
      palette.confidence = matching_ext[format_id] != null ? 0.9 : 0.01;
      callback(null, palette, format, matching_ext[format_id] != null, {
        __errors_before_success: errors
      });
      return;
    }
  }
  callback(new LoadingErrors(errors));
};

normalize_options = function(o = {}) {
  var ref1, ref2;
  if (typeof o === "string" || o instanceof String) {
    o = {
      filePath: o
    };
  }
  if ((typeof File !== "undefined" && File !== null) && o instanceof File) {
    o = {
      file: o
    };
  }
  
  // o.minColors ?= 2
  // o.maxColors ?= 256
  if (o.fileName == null) {
    o.fileName = (ref1 = (ref2 = o.file) != null ? ref2.name : void 0) != null ? ref1 : (o.filePath ? require("path").basename(o.filePath) : void 0);
  }
  if (o.fileExt == null) {
    o.fileExt = `${o.fileName}`.split(".").pop();
  }
  o.fileExt = `${o.fileExt}`.toLowerCase();
  return o;
};

// LoadingErrors
AnyPalette = {Color, Palette, formats};

// Get palette from a file
AnyPalette.loadPalette = function(o, callback) {
  var fr, fs;
  if (!o) {
    throw new TypeError("parameters required: AnyPalette.loadPalette(options, function callback(error, palette){})");
  }
  if (!callback) {
    throw new TypeError("callback required: AnyPalette.loadPalette(options, function callback(error, palette){})");
  }
  o = normalize_options(o);
  if (o.data) {
    return read_palette(o, callback);
  } else if (o.file) {
    if (!(o.file instanceof File)) {
      throw new TypeError("options.file was passed but it is not a File");
    }
    fr = new FileReader();
    fr.onerror = function() {
      return callback(fr.error);
    };
    fr.onload = function() {
      o.data = fr.result;
      return read_palette(o, callback);
    };
    return fr.readAsArrayBuffer(o.file);
  } else if (o.filePath != null) {
    fs = require("fs");
    return fs.readFile(o.filePath, function(error, data) {
      if (error) {
        return callback(error);
      } else {
        o.data = data;
        return read_palette(o, callback);
      }
    });
  } else {
    throw new TypeError("either options.data or options.file or options.filePath must be passed");
  }
};

AnyPalette.writePalette = function(palette, format) {
  if (format == null) {
    format = AnyPalette.formats.GIMP_PALETTE;
  }
  return format.write(palette);
};

// file = new File([palette_content_string], (palette.name ? "Saved Colors") + ".#{format.fileExtensions[0]}")
// return [file, format.fileExtensions[0]]
AnyPalette.uniqueColors = function(palette, epsilon) {
  var i, i_color, j, j_color, new_palette, ref1;
  new_palette = new Palette();
  new_palette.name = this.name;
  new_palette.description = this.description;
  // These aren't super meaningful if some colors are removed:
  // new_palette.numberOfColumns = palette.numberOfColumns
  // new_palette.geometrySpecifiedByFile = palette.geometrySpecifiedByFile
  splice.apply(new_palette, [0, 9e9].concat(ref1 = palette.slice(0))), ref1;
  // In-place uniquify
  // (Can't simply use `new_palette[..] = [...new Set(palette)]` because it's Color objects, not strings)
  i = 0;
  while (i < new_palette.length) {
    i_color = new_palette[i];
    j = i + 1;
    while (j < new_palette.length) {
      j_color = new_palette[j];
      if (Color.is(i_color, j_color, epsilon)) {
        new_palette.splice(j, 1);
        j -= 1;
      }
      j += 1;
    }
    i += 1;
  }
  return new_palette;
};

// Exports
module.exports = AnyPalette;


},{"./Color":36,"./Palette":37,"./formats/Adobe":38,"./formats/AdobeColorTable":39,"./formats/CSS":40,"./formats/ColorSchemer":41,"./formats/GIMP":42,"./formats/Homesite":43,"./formats/KolourPaint":44,"./formats/Paint.NET":45,"./formats/PaintShopPro":46,"./formats/RIFF":47,"./formats/SKP":48,"./formats/SPL":49,"./formats/StarCraft":50,"./formats/StarCraftPadded":51,"./formats/StarOffice":52,"./formats/sketchpalette":53,"./formats/tabular":54,"./formats/theme":55,"fs":"fs","path":"path"}]},{},[57])(57)
});