// 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 * homepage: https://1j01.github.io/anypalette.js/ * version: 0.6.0 * * base64-js: * license: MIT (http://opensource.org/licenses/MIT) * author: T. Jameson Little * homepage: https://github.com/beatgammit/base64-js * version: 1.5.1 * * browser-resolve: * license: MIT (http://opensource.org/licenses/MIT) * author: Roman Shtylman * homepage: https://github.com/browserify/browser-resolve#readme * version: 2.0.0 * * buffer: * license: MIT (http://opensource.org/licenses/MIT) * author: Feross Aboukhadijeh * contributors: Romain Beauxis , James Halliday * 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 * 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 * contributors: Romain Beauxis * 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 * contributors: Vjeux , RReverser * homepage: http://jDataView.github.io/ * version: 2.5.0 * * process: * license: MIT (http://opensource.org/licenses/MIT) * author: Roman Shtylman * 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 * homepage: https://github.com/feross/safe-buffer * version: 5.1.2 * * sax: * license: ISC (http://opensource.org/licenses/ISC) * author: Isaac Z. Schlueter * homepage: https://github.com/isaacs/sax-js#readme * version: 1.2.4 * * stream-browserify: * license: MIT (http://opensource.org/licenses/MIT) * author: James Halliday * 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 * homepage: https://github.com/TooTallNate/util-deprecate * version: 1.0.2 * * xml-js: * license: MIT (http://opensource.org/licenses/MIT) * author: Yousuf Almarzooqi * 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 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 * @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.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 */ 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++, // & and such. OPEN_WAKA: S++, // < SGML_DECL: S++, // SCRIPT: S++, //