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|
- (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.QRCode = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
- module.exports = function () {
- return typeof Promise === 'function' && Promise.prototype && Promise.prototype.then
- }
- },{}],2:[function(require,module,exports){
- var getSymbolSize = require('./utils').getSymbolSize
- exports.getRowColCoords = function getRowColCoords (version) {
- if (version === 1) return []
- var posCount = Math.floor(version / 7) + 2
- var size = getSymbolSize(version)
- var intervals = size === 145 ? 26 : Math.ceil((size - 13) / (2 * posCount - 2)) * 2
- var positions = [size - 7]
- for (var i = 1; i < posCount - 1; i++) {
- positions[i] = positions[i - 1] - intervals
- }
- positions.push(6)
- return positions.reverse()
- }
- exports.getPositions = function getPositions (version) {
- var coords = []
- var pos = exports.getRowColCoords(version)
- var posLength = pos.length
- for (var i = 0; i < posLength; i++) {
- for (var j = 0; j < posLength; j++) {
-
- if ((i === 0 && j === 0) ||
- (i === 0 && j === posLength - 1) ||
- (i === posLength - 1 && j === 0)) {
- continue
- }
- coords.push([pos[i], pos[j]])
- }
- }
- return coords
- }
- },{"./utils":21}],3:[function(require,module,exports){
- var Mode = require('./mode')
- var ALPHA_NUM_CHARS = [
- '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
- 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
- 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
- ' ', '$', '%', '*', '+', '-', '.', '/', ':'
- ]
- function AlphanumericData (data) {
- this.mode = Mode.ALPHANUMERIC
- this.data = data
- }
- AlphanumericData.getBitsLength = function getBitsLength (length) {
- return 11 * Math.floor(length / 2) + 6 * (length % 2)
- }
- AlphanumericData.prototype.getLength = function getLength () {
- return this.data.length
- }
- AlphanumericData.prototype.getBitsLength = function getBitsLength () {
- return AlphanumericData.getBitsLength(this.data.length)
- }
- AlphanumericData.prototype.write = function write (bitBuffer) {
- var i
-
-
- for (i = 0; i + 2 <= this.data.length; i += 2) {
-
- var value = ALPHA_NUM_CHARS.indexOf(this.data[i]) * 45
-
- value += ALPHA_NUM_CHARS.indexOf(this.data[i + 1])
-
- bitBuffer.put(value, 11)
- }
-
-
- if (this.data.length % 2) {
- bitBuffer.put(ALPHA_NUM_CHARS.indexOf(this.data[i]), 6)
- }
- }
- module.exports = AlphanumericData
- },{"./mode":14}],4:[function(require,module,exports){
- function BitBuffer () {
- this.buffer = []
- this.length = 0
- }
- BitBuffer.prototype = {
- get: function (index) {
- var bufIndex = Math.floor(index / 8)
- return ((this.buffer[bufIndex] >>> (7 - index % 8)) & 1) === 1
- },
- put: function (num, length) {
- for (var i = 0; i < length; i++) {
- this.putBit(((num >>> (length - i - 1)) & 1) === 1)
- }
- },
- getLengthInBits: function () {
- return this.length
- },
- putBit: function (bit) {
- var bufIndex = Math.floor(this.length / 8)
- if (this.buffer.length <= bufIndex) {
- this.buffer.push(0)
- }
- if (bit) {
- this.buffer[bufIndex] |= (0x80 >>> (this.length % 8))
- }
- this.length++
- }
- }
- module.exports = BitBuffer
- },{}],5:[function(require,module,exports){
- var BufferUtil = require('../utils/buffer')
- function BitMatrix (size) {
- if (!size || size < 1) {
- throw new Error('BitMatrix size must be defined and greater than 0')
- }
- this.size = size
- this.data = BufferUtil.alloc(size * size)
- this.reservedBit = BufferUtil.alloc(size * size)
- }
- BitMatrix.prototype.set = function (row, col, value, reserved) {
- var index = row * this.size + col
- this.data[index] = value
- if (reserved) this.reservedBit[index] = true
- }
- BitMatrix.prototype.get = function (row, col) {
- return this.data[row * this.size + col]
- }
- BitMatrix.prototype.xor = function (row, col, value) {
- this.data[row * this.size + col] ^= value
- }
- BitMatrix.prototype.isReserved = function (row, col) {
- return this.reservedBit[row * this.size + col]
- }
- module.exports = BitMatrix
- },{"../utils/buffer":28}],6:[function(require,module,exports){
- var BufferUtil = require('../utils/buffer')
- var Mode = require('./mode')
- function ByteData (data) {
- this.mode = Mode.BYTE
- this.data = BufferUtil.from(data)
- }
- ByteData.getBitsLength = function getBitsLength (length) {
- return length * 8
- }
- ByteData.prototype.getLength = function getLength () {
- return this.data.length
- }
- ByteData.prototype.getBitsLength = function getBitsLength () {
- return ByteData.getBitsLength(this.data.length)
- }
- ByteData.prototype.write = function (bitBuffer) {
- for (var i = 0, l = this.data.length; i < l; i++) {
- bitBuffer.put(this.data[i], 8)
- }
- }
- module.exports = ByteData
- },{"../utils/buffer":28,"./mode":14}],7:[function(require,module,exports){
- var ECLevel = require('./error-correction-level')
- var EC_BLOCKS_TABLE = [
- 1, 1, 1, 1,
- 1, 1, 1, 1,
- 1, 1, 2, 2,
- 1, 2, 2, 4,
- 1, 2, 4, 4,
- 2, 4, 4, 4,
- 2, 4, 6, 5,
- 2, 4, 6, 6,
- 2, 5, 8, 8,
- 4, 5, 8, 8,
- 4, 5, 8, 11,
- 4, 8, 10, 11,
- 4, 9, 12, 16,
- 4, 9, 16, 16,
- 6, 10, 12, 18,
- 6, 10, 17, 16,
- 6, 11, 16, 19,
- 6, 13, 18, 21,
- 7, 14, 21, 25,
- 8, 16, 20, 25,
- 8, 17, 23, 25,
- 9, 17, 23, 34,
- 9, 18, 25, 30,
- 10, 20, 27, 32,
- 12, 21, 29, 35,
- 12, 23, 34, 37,
- 12, 25, 34, 40,
- 13, 26, 35, 42,
- 14, 28, 38, 45,
- 15, 29, 40, 48,
- 16, 31, 43, 51,
- 17, 33, 45, 54,
- 18, 35, 48, 57,
- 19, 37, 51, 60,
- 19, 38, 53, 63,
- 20, 40, 56, 66,
- 21, 43, 59, 70,
- 22, 45, 62, 74,
- 24, 47, 65, 77,
- 25, 49, 68, 81
- ]
- var EC_CODEWORDS_TABLE = [
- 7, 10, 13, 17,
- 10, 16, 22, 28,
- 15, 26, 36, 44,
- 20, 36, 52, 64,
- 26, 48, 72, 88,
- 36, 64, 96, 112,
- 40, 72, 108, 130,
- 48, 88, 132, 156,
- 60, 110, 160, 192,
- 72, 130, 192, 224,
- 80, 150, 224, 264,
- 96, 176, 260, 308,
- 104, 198, 288, 352,
- 120, 216, 320, 384,
- 132, 240, 360, 432,
- 144, 280, 408, 480,
- 168, 308, 448, 532,
- 180, 338, 504, 588,
- 196, 364, 546, 650,
- 224, 416, 600, 700,
- 224, 442, 644, 750,
- 252, 476, 690, 816,
- 270, 504, 750, 900,
- 300, 560, 810, 960,
- 312, 588, 870, 1050,
- 336, 644, 952, 1110,
- 360, 700, 1020, 1200,
- 390, 728, 1050, 1260,
- 420, 784, 1140, 1350,
- 450, 812, 1200, 1440,
- 480, 868, 1290, 1530,
- 510, 924, 1350, 1620,
- 540, 980, 1440, 1710,
- 570, 1036, 1530, 1800,
- 570, 1064, 1590, 1890,
- 600, 1120, 1680, 1980,
- 630, 1204, 1770, 2100,
- 660, 1260, 1860, 2220,
- 720, 1316, 1950, 2310,
- 750, 1372, 2040, 2430
- ]
- exports.getBlocksCount = function getBlocksCount (version, errorCorrectionLevel) {
- switch (errorCorrectionLevel) {
- case ECLevel.L:
- return EC_BLOCKS_TABLE[(version - 1) * 4 + 0]
- case ECLevel.M:
- return EC_BLOCKS_TABLE[(version - 1) * 4 + 1]
- case ECLevel.Q:
- return EC_BLOCKS_TABLE[(version - 1) * 4 + 2]
- case ECLevel.H:
- return EC_BLOCKS_TABLE[(version - 1) * 4 + 3]
- default:
- return undefined
- }
- }
- exports.getTotalCodewordsCount = function getTotalCodewordsCount (version, errorCorrectionLevel) {
- switch (errorCorrectionLevel) {
- case ECLevel.L:
- return EC_CODEWORDS_TABLE[(version - 1) * 4 + 0]
- case ECLevel.M:
- return EC_CODEWORDS_TABLE[(version - 1) * 4 + 1]
- case ECLevel.Q:
- return EC_CODEWORDS_TABLE[(version - 1) * 4 + 2]
- case ECLevel.H:
- return EC_CODEWORDS_TABLE[(version - 1) * 4 + 3]
- default:
- return undefined
- }
- }
- },{"./error-correction-level":8}],8:[function(require,module,exports){
- exports.L = { bit: 1 }
- exports.M = { bit: 0 }
- exports.Q = { bit: 3 }
- exports.H = { bit: 2 }
- function fromString (string) {
- if (typeof string !== 'string') {
- throw new Error('Param is not a string')
- }
- var lcStr = string.toLowerCase()
- switch (lcStr) {
- case 'l':
- case 'low':
- return exports.L
- case 'm':
- case 'medium':
- return exports.M
- case 'q':
- case 'quartile':
- return exports.Q
- case 'h':
- case 'high':
- return exports.H
- default:
- throw new Error('Unknown EC Level: ' + string)
- }
- }
- exports.isValid = function isValid (level) {
- return level && typeof level.bit !== 'undefined' &&
- level.bit >= 0 && level.bit < 4
- }
- exports.from = function from (value, defaultValue) {
- if (exports.isValid(value)) {
- return value
- }
- try {
- return fromString(value)
- } catch (e) {
- return defaultValue
- }
- }
- },{}],9:[function(require,module,exports){
- var getSymbolSize = require('./utils').getSymbolSize
- var FINDER_PATTERN_SIZE = 7
- exports.getPositions = function getPositions (version) {
- var size = getSymbolSize(version)
- return [
-
- [0, 0],
-
- [size - FINDER_PATTERN_SIZE, 0],
-
- [0, size - FINDER_PATTERN_SIZE]
- ]
- }
- },{"./utils":21}],10:[function(require,module,exports){
- var Utils = require('./utils')
- var G15 = (1 << 10) | (1 << 8) | (1 << 5) | (1 << 4) | (1 << 2) | (1 << 1) | (1 << 0)
- var G15_MASK = (1 << 14) | (1 << 12) | (1 << 10) | (1 << 4) | (1 << 1)
- var G15_BCH = Utils.getBCHDigit(G15)
- exports.getEncodedBits = function getEncodedBits (errorCorrectionLevel, mask) {
- var data = ((errorCorrectionLevel.bit << 3) | mask)
- var d = data << 10
- while (Utils.getBCHDigit(d) - G15_BCH >= 0) {
- d ^= (G15 << (Utils.getBCHDigit(d) - G15_BCH))
- }
-
-
-
- return ((data << 10) | d) ^ G15_MASK
- }
- },{"./utils":21}],11:[function(require,module,exports){
- var BufferUtil = require('../utils/buffer')
- var EXP_TABLE = BufferUtil.alloc(512)
- var LOG_TABLE = BufferUtil.alloc(256)
- ;(function initTables () {
- var x = 1
- for (var i = 0; i < 255; i++) {
- EXP_TABLE[i] = x
- LOG_TABLE[x] = i
- x <<= 1
-
-
- if (x & 0x100) {
- x ^= 0x11D
- }
- }
-
-
-
-
- for (i = 255; i < 512; i++) {
- EXP_TABLE[i] = EXP_TABLE[i - 255]
- }
- }())
- exports.log = function log (n) {
- if (n < 1) throw new Error('log(' + n + ')')
- return LOG_TABLE[n]
- }
- exports.exp = function exp (n) {
- return EXP_TABLE[n]
- }
- exports.mul = function mul (x, y) {
- if (x === 0 || y === 0) return 0
-
-
- return EXP_TABLE[LOG_TABLE[x] + LOG_TABLE[y]]
- }
- },{"../utils/buffer":28}],12:[function(require,module,exports){
- var Mode = require('./mode')
- var Utils = require('./utils')
- function KanjiData (data) {
- this.mode = Mode.KANJI
- this.data = data
- }
- KanjiData.getBitsLength = function getBitsLength (length) {
- return length * 13
- }
- KanjiData.prototype.getLength = function getLength () {
- return this.data.length
- }
- KanjiData.prototype.getBitsLength = function getBitsLength () {
- return KanjiData.getBitsLength(this.data.length)
- }
- KanjiData.prototype.write = function (bitBuffer) {
- var i
-
-
-
- for (i = 0; i < this.data.length; i++) {
- var value = Utils.toSJIS(this.data[i])
-
- if (value >= 0x8140 && value <= 0x9FFC) {
-
- value -= 0x8140
-
- } else if (value >= 0xE040 && value <= 0xEBBF) {
-
- value -= 0xC140
- } else {
- throw new Error(
- 'Invalid SJIS character: ' + this.data[i] + '\n' +
- 'Make sure your charset is UTF-8')
- }
-
-
- value = (((value >>> 8) & 0xff) * 0xC0) + (value & 0xff)
-
- bitBuffer.put(value, 13)
- }
- }
- module.exports = KanjiData
- },{"./mode":14,"./utils":21}],13:[function(require,module,exports){
- exports.Patterns = {
- PATTERN000: 0,
- PATTERN001: 1,
- PATTERN010: 2,
- PATTERN011: 3,
- PATTERN100: 4,
- PATTERN101: 5,
- PATTERN110: 6,
- PATTERN111: 7
- }
- var PenaltyScores = {
- N1: 3,
- N2: 3,
- N3: 40,
- N4: 10
- }
- exports.isValid = function isValid (mask) {
- return mask != null && mask !== '' && !isNaN(mask) && mask >= 0 && mask <= 7
- }
- exports.from = function from (value) {
- return exports.isValid(value) ? parseInt(value, 10) : undefined
- }
- exports.getPenaltyN1 = function getPenaltyN1 (data) {
- var size = data.size
- var points = 0
- var sameCountCol = 0
- var sameCountRow = 0
- var lastCol = null
- var lastRow = null
- for (var row = 0; row < size; row++) {
- sameCountCol = sameCountRow = 0
- lastCol = lastRow = null
- for (var col = 0; col < size; col++) {
- var module = data.get(row, col)
- if (module === lastCol) {
- sameCountCol++
- } else {
- if (sameCountCol >= 5) points += PenaltyScores.N1 + (sameCountCol - 5)
- lastCol = module
- sameCountCol = 1
- }
- module = data.get(col, row)
- if (module === lastRow) {
- sameCountRow++
- } else {
- if (sameCountRow >= 5) points += PenaltyScores.N1 + (sameCountRow - 5)
- lastRow = module
- sameCountRow = 1
- }
- }
- if (sameCountCol >= 5) points += PenaltyScores.N1 + (sameCountCol - 5)
- if (sameCountRow >= 5) points += PenaltyScores.N1 + (sameCountRow - 5)
- }
- return points
- }
- exports.getPenaltyN2 = function getPenaltyN2 (data) {
- var size = data.size
- var points = 0
- for (var row = 0; row < size - 1; row++) {
- for (var col = 0; col < size - 1; col++) {
- var last = data.get(row, col) +
- data.get(row, col + 1) +
- data.get(row + 1, col) +
- data.get(row + 1, col + 1)
- if (last === 4 || last === 0) points++
- }
- }
- return points * PenaltyScores.N2
- }
- exports.getPenaltyN3 = function getPenaltyN3 (data) {
- var size = data.size
- var points = 0
- var bitsCol = 0
- var bitsRow = 0
- for (var row = 0; row < size; row++) {
- bitsCol = bitsRow = 0
- for (var col = 0; col < size; col++) {
- bitsCol = ((bitsCol << 1) & 0x7FF) | data.get(row, col)
- if (col >= 10 && (bitsCol === 0x5D0 || bitsCol === 0x05D)) points++
- bitsRow = ((bitsRow << 1) & 0x7FF) | data.get(col, row)
- if (col >= 10 && (bitsRow === 0x5D0 || bitsRow === 0x05D)) points++
- }
- }
- return points * PenaltyScores.N3
- }
- exports.getPenaltyN4 = function getPenaltyN4 (data) {
- var darkCount = 0
- var modulesCount = data.data.length
- for (var i = 0; i < modulesCount; i++) darkCount += data.data[i]
- var k = Math.abs(Math.ceil((darkCount * 100 / modulesCount) / 5) - 10)
- return k * PenaltyScores.N4
- }
- function getMaskAt (maskPattern, i, j) {
- switch (maskPattern) {
- case exports.Patterns.PATTERN000: return (i + j) % 2 === 0
- case exports.Patterns.PATTERN001: return i % 2 === 0
- case exports.Patterns.PATTERN010: return j % 3 === 0
- case exports.Patterns.PATTERN011: return (i + j) % 3 === 0
- case exports.Patterns.PATTERN100: return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 === 0
- case exports.Patterns.PATTERN101: return (i * j) % 2 + (i * j) % 3 === 0
- case exports.Patterns.PATTERN110: return ((i * j) % 2 + (i * j) % 3) % 2 === 0
- case exports.Patterns.PATTERN111: return ((i * j) % 3 + (i + j) % 2) % 2 === 0
- default: throw new Error('bad maskPattern:' + maskPattern)
- }
- }
- exports.applyMask = function applyMask (pattern, data) {
- var size = data.size
- for (var col = 0; col < size; col++) {
- for (var row = 0; row < size; row++) {
- if (data.isReserved(row, col)) continue
- data.xor(row, col, getMaskAt(pattern, row, col))
- }
- }
- }
- exports.getBestMask = function getBestMask (data, setupFormatFunc) {
- var numPatterns = Object.keys(exports.Patterns).length
- var bestPattern = 0
- var lowerPenalty = Infinity
- for (var p = 0; p < numPatterns; p++) {
- setupFormatFunc(p)
- exports.applyMask(p, data)
-
- var penalty =
- exports.getPenaltyN1(data) +
- exports.getPenaltyN2(data) +
- exports.getPenaltyN3(data) +
- exports.getPenaltyN4(data)
-
- exports.applyMask(p, data)
- if (penalty < lowerPenalty) {
- lowerPenalty = penalty
- bestPattern = p
- }
- }
- return bestPattern
- }
- },{}],14:[function(require,module,exports){
- var VersionCheck = require('./version-check')
- var Regex = require('./regex')
- exports.NUMERIC = {
- id: 'Numeric',
- bit: 1 << 0,
- ccBits: [10, 12, 14]
- }
- exports.ALPHANUMERIC = {
- id: 'Alphanumeric',
- bit: 1 << 1,
- ccBits: [9, 11, 13]
- }
- exports.BYTE = {
- id: 'Byte',
- bit: 1 << 2,
- ccBits: [8, 16, 16]
- }
- exports.KANJI = {
- id: 'Kanji',
- bit: 1 << 3,
- ccBits: [8, 10, 12]
- }
- exports.MIXED = {
- bit: -1
- }
- exports.getCharCountIndicator = function getCharCountIndicator (mode, version) {
- if (!mode.ccBits) throw new Error('Invalid mode: ' + mode)
- if (!VersionCheck.isValid(version)) {
- throw new Error('Invalid version: ' + version)
- }
- if (version >= 1 && version < 10) return mode.ccBits[0]
- else if (version < 27) return mode.ccBits[1]
- return mode.ccBits[2]
- }
- exports.getBestModeForData = function getBestModeForData (dataStr) {
- if (Regex.testNumeric(dataStr)) return exports.NUMERIC
- else if (Regex.testAlphanumeric(dataStr)) return exports.ALPHANUMERIC
- else if (Regex.testKanji(dataStr)) return exports.KANJI
- else return exports.BYTE
- }
- exports.toString = function toString (mode) {
- if (mode && mode.id) return mode.id
- throw new Error('Invalid mode')
- }
- exports.isValid = function isValid (mode) {
- return mode && mode.bit && mode.ccBits
- }
- function fromString (string) {
- if (typeof string !== 'string') {
- throw new Error('Param is not a string')
- }
- var lcStr = string.toLowerCase()
- switch (lcStr) {
- case 'numeric':
- return exports.NUMERIC
- case 'alphanumeric':
- return exports.ALPHANUMERIC
- case 'kanji':
- return exports.KANJI
- case 'byte':
- return exports.BYTE
- default:
- throw new Error('Unknown mode: ' + string)
- }
- }
- exports.from = function from (value, defaultValue) {
- if (exports.isValid(value)) {
- return value
- }
- try {
- return fromString(value)
- } catch (e) {
- return defaultValue
- }
- }
- },{"./regex":19,"./version-check":22}],15:[function(require,module,exports){
- var Mode = require('./mode')
- function NumericData (data) {
- this.mode = Mode.NUMERIC
- this.data = data.toString()
- }
- NumericData.getBitsLength = function getBitsLength (length) {
- return 10 * Math.floor(length / 3) + ((length % 3) ? ((length % 3) * 3 + 1) : 0)
- }
- NumericData.prototype.getLength = function getLength () {
- return this.data.length
- }
- NumericData.prototype.getBitsLength = function getBitsLength () {
- return NumericData.getBitsLength(this.data.length)
- }
- NumericData.prototype.write = function write (bitBuffer) {
- var i, group, value
-
-
- for (i = 0; i + 3 <= this.data.length; i += 3) {
- group = this.data.substr(i, 3)
- value = parseInt(group, 10)
- bitBuffer.put(value, 10)
- }
-
-
- var remainingNum = this.data.length - i
- if (remainingNum > 0) {
- group = this.data.substr(i)
- value = parseInt(group, 10)
- bitBuffer.put(value, remainingNum * 3 + 1)
- }
- }
- module.exports = NumericData
- },{"./mode":14}],16:[function(require,module,exports){
- var BufferUtil = require('../utils/buffer')
- var GF = require('./galois-field')
- exports.mul = function mul (p1, p2) {
- var coeff = BufferUtil.alloc(p1.length + p2.length - 1)
- for (var i = 0; i < p1.length; i++) {
- for (var j = 0; j < p2.length; j++) {
- coeff[i + j] ^= GF.mul(p1[i], p2[j])
- }
- }
- return coeff
- }
- exports.mod = function mod (divident, divisor) {
- var result = BufferUtil.from(divident)
- while ((result.length - divisor.length) >= 0) {
- var coeff = result[0]
- for (var i = 0; i < divisor.length; i++) {
- result[i] ^= GF.mul(divisor[i], coeff)
- }
-
- var offset = 0
- while (offset < result.length && result[offset] === 0) offset++
- result = result.slice(offset)
- }
- return result
- }
- exports.generateECPolynomial = function generateECPolynomial (degree) {
- var poly = BufferUtil.from([1])
- for (var i = 0; i < degree; i++) {
- poly = exports.mul(poly, [1, GF.exp(i)])
- }
- return poly
- }
- },{"../utils/buffer":28,"./galois-field":11}],17:[function(require,module,exports){
- var BufferUtil = require('../utils/buffer')
- var Utils = require('./utils')
- var ECLevel = require('./error-correction-level')
- var BitBuffer = require('./bit-buffer')
- var BitMatrix = require('./bit-matrix')
- var AlignmentPattern = require('./alignment-pattern')
- var FinderPattern = require('./finder-pattern')
- var MaskPattern = require('./mask-pattern')
- var ECCode = require('./error-correction-code')
- var ReedSolomonEncoder = require('./reed-solomon-encoder')
- var Version = require('./version')
- var FormatInfo = require('./format-info')
- var Mode = require('./mode')
- var Segments = require('./segments')
- var isArray = require('isarray')
- function setupFinderPattern (matrix, version) {
- var size = matrix.size
- var pos = FinderPattern.getPositions(version)
- for (var i = 0; i < pos.length; i++) {
- var row = pos[i][0]
- var col = pos[i][1]
- for (var r = -1; r <= 7; r++) {
- if (row + r <= -1 || size <= row + r) continue
- for (var c = -1; c <= 7; c++) {
- if (col + c <= -1 || size <= col + c) continue
- if ((r >= 0 && r <= 6 && (c === 0 || c === 6)) ||
- (c >= 0 && c <= 6 && (r === 0 || r === 6)) ||
- (r >= 2 && r <= 4 && c >= 2 && c <= 4)) {
- matrix.set(row + r, col + c, true, true)
- } else {
- matrix.set(row + r, col + c, false, true)
- }
- }
- }
- }
- }
- function setupTimingPattern (matrix) {
- var size = matrix.size
- for (var r = 8; r < size - 8; r++) {
- var value = r % 2 === 0
- matrix.set(r, 6, value, true)
- matrix.set(6, r, value, true)
- }
- }
- function setupAlignmentPattern (matrix, version) {
- var pos = AlignmentPattern.getPositions(version)
- for (var i = 0; i < pos.length; i++) {
- var row = pos[i][0]
- var col = pos[i][1]
- for (var r = -2; r <= 2; r++) {
- for (var c = -2; c <= 2; c++) {
- if (r === -2 || r === 2 || c === -2 || c === 2 ||
- (r === 0 && c === 0)) {
- matrix.set(row + r, col + c, true, true)
- } else {
- matrix.set(row + r, col + c, false, true)
- }
- }
- }
- }
- }
- function setupVersionInfo (matrix, version) {
- var size = matrix.size
- var bits = Version.getEncodedBits(version)
- var row, col, mod
- for (var i = 0; i < 18; i++) {
- row = Math.floor(i / 3)
- col = i % 3 + size - 8 - 3
- mod = ((bits >> i) & 1) === 1
- matrix.set(row, col, mod, true)
- matrix.set(col, row, mod, true)
- }
- }
- function setupFormatInfo (matrix, errorCorrectionLevel, maskPattern) {
- var size = matrix.size
- var bits = FormatInfo.getEncodedBits(errorCorrectionLevel, maskPattern)
- var i, mod
- for (i = 0; i < 15; i++) {
- mod = ((bits >> i) & 1) === 1
-
- if (i < 6) {
- matrix.set(i, 8, mod, true)
- } else if (i < 8) {
- matrix.set(i + 1, 8, mod, true)
- } else {
- matrix.set(size - 15 + i, 8, mod, true)
- }
-
- if (i < 8) {
- matrix.set(8, size - i - 1, mod, true)
- } else if (i < 9) {
- matrix.set(8, 15 - i - 1 + 1, mod, true)
- } else {
- matrix.set(8, 15 - i - 1, mod, true)
- }
- }
-
- matrix.set(size - 8, 8, 1, true)
- }
- function setupData (matrix, data) {
- var size = matrix.size
- var inc = -1
- var row = size - 1
- var bitIndex = 7
- var byteIndex = 0
- for (var col = size - 1; col > 0; col -= 2) {
- if (col === 6) col--
- while (true) {
- for (var c = 0; c < 2; c++) {
- if (!matrix.isReserved(row, col - c)) {
- var dark = false
- if (byteIndex < data.length) {
- dark = (((data[byteIndex] >>> bitIndex) & 1) === 1)
- }
- matrix.set(row, col - c, dark)
- bitIndex--
- if (bitIndex === -1) {
- byteIndex++
- bitIndex = 7
- }
- }
- }
- row += inc
- if (row < 0 || size <= row) {
- row -= inc
- inc = -inc
- break
- }
- }
- }
- }
- function createData (version, errorCorrectionLevel, segments) {
-
- var buffer = new BitBuffer()
- segments.forEach(function (data) {
-
- buffer.put(data.mode.bit, 4)
-
-
-
-
-
-
-
- buffer.put(data.getLength(), Mode.getCharCountIndicator(data.mode, version))
-
- data.write(buffer)
- })
-
- var totalCodewords = Utils.getSymbolTotalCodewords(version)
- var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel)
- var dataTotalCodewordsBits = (totalCodewords - ecTotalCodewords) * 8
-
-
-
-
-
- if (buffer.getLengthInBits() + 4 <= dataTotalCodewordsBits) {
- buffer.put(0, 4)
- }
-
-
-
-
- while (buffer.getLengthInBits() % 8 !== 0) {
- buffer.putBit(0)
- }
-
-
-
-
- var remainingByte = (dataTotalCodewordsBits - buffer.getLengthInBits()) / 8
- for (var i = 0; i < remainingByte; i++) {
- buffer.put(i % 2 ? 0x11 : 0xEC, 8)
- }
- return createCodewords(buffer, version, errorCorrectionLevel)
- }
- function createCodewords (bitBuffer, version, errorCorrectionLevel) {
-
- var totalCodewords = Utils.getSymbolTotalCodewords(version)
-
- var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel)
-
- var dataTotalCodewords = totalCodewords - ecTotalCodewords
-
- var ecTotalBlocks = ECCode.getBlocksCount(version, errorCorrectionLevel)
-
- var blocksInGroup2 = totalCodewords % ecTotalBlocks
- var blocksInGroup1 = ecTotalBlocks - blocksInGroup2
- var totalCodewordsInGroup1 = Math.floor(totalCodewords / ecTotalBlocks)
- var dataCodewordsInGroup1 = Math.floor(dataTotalCodewords / ecTotalBlocks)
- var dataCodewordsInGroup2 = dataCodewordsInGroup1 + 1
-
- var ecCount = totalCodewordsInGroup1 - dataCodewordsInGroup1
-
- var rs = new ReedSolomonEncoder(ecCount)
- var offset = 0
- var dcData = new Array(ecTotalBlocks)
- var ecData = new Array(ecTotalBlocks)
- var maxDataSize = 0
- var buffer = BufferUtil.from(bitBuffer.buffer)
-
- for (var b = 0; b < ecTotalBlocks; b++) {
- var dataSize = b < blocksInGroup1 ? dataCodewordsInGroup1 : dataCodewordsInGroup2
-
- dcData[b] = buffer.slice(offset, offset + dataSize)
-
- ecData[b] = rs.encode(dcData[b])
- offset += dataSize
- maxDataSize = Math.max(maxDataSize, dataSize)
- }
-
-
- var data = BufferUtil.alloc(totalCodewords)
- var index = 0
- var i, r
-
- for (i = 0; i < maxDataSize; i++) {
- for (r = 0; r < ecTotalBlocks; r++) {
- if (i < dcData[r].length) {
- data[index++] = dcData[r][i]
- }
- }
- }
-
- for (i = 0; i < ecCount; i++) {
- for (r = 0; r < ecTotalBlocks; r++) {
- data[index++] = ecData[r][i]
- }
- }
- return data
- }
- function createSymbol (data, version, errorCorrectionLevel, maskPattern) {
- var segments
- if (isArray(data)) {
- segments = Segments.fromArray(data)
- } else if (typeof data === 'string') {
- var estimatedVersion = version
- if (!estimatedVersion) {
- var rawSegments = Segments.rawSplit(data)
-
- estimatedVersion = Version.getBestVersionForData(rawSegments,
- errorCorrectionLevel)
- }
-
-
- segments = Segments.fromString(data, estimatedVersion || 40)
- } else {
- throw new Error('Invalid data')
- }
-
- var bestVersion = Version.getBestVersionForData(segments,
- errorCorrectionLevel)
-
- if (!bestVersion) {
- throw new Error('The amount of data is too big to be stored in a QR Code')
- }
-
- if (!version) {
- version = bestVersion
-
- } else if (version < bestVersion) {
- throw new Error('\n' +
- 'The chosen QR Code version cannot contain this amount of data.\n' +
- 'Minimum version required to store current data is: ' + bestVersion + '.\n'
- )
- }
- var dataBits = createData(version, errorCorrectionLevel, segments)
-
- var moduleCount = Utils.getSymbolSize(version)
- var modules = new BitMatrix(moduleCount)
-
- setupFinderPattern(modules, version)
- setupTimingPattern(modules)
- setupAlignmentPattern(modules, version)
-
-
-
-
- setupFormatInfo(modules, errorCorrectionLevel, 0)
- if (version >= 7) {
- setupVersionInfo(modules, version)
- }
-
- setupData(modules, dataBits)
- if (isNaN(maskPattern)) {
-
- maskPattern = MaskPattern.getBestMask(modules,
- setupFormatInfo.bind(null, modules, errorCorrectionLevel))
- }
-
- MaskPattern.applyMask(maskPattern, modules)
-
- setupFormatInfo(modules, errorCorrectionLevel, maskPattern)
- return {
- modules: modules,
- version: version,
- errorCorrectionLevel: errorCorrectionLevel,
- maskPattern: maskPattern,
- segments: segments
- }
- }
- exports.create = function create (data, options) {
- if (typeof data === 'undefined' || data === '') {
- throw new Error('No input text')
- }
- var errorCorrectionLevel = ECLevel.M
- var version
- var mask
- if (typeof options !== 'undefined') {
-
- errorCorrectionLevel = ECLevel.from(options.errorCorrectionLevel, ECLevel.M)
- version = Version.from(options.version)
- mask = MaskPattern.from(options.maskPattern)
- if (options.toSJISFunc) {
- Utils.setToSJISFunction(options.toSJISFunc)
- }
- }
- return createSymbol(data, version, errorCorrectionLevel, mask)
- }
- },{"../utils/buffer":28,"./alignment-pattern":2,"./bit-buffer":4,"./bit-matrix":5,"./error-correction-code":7,"./error-correction-level":8,"./finder-pattern":9,"./format-info":10,"./mask-pattern":13,"./mode":14,"./reed-solomon-encoder":18,"./segments":20,"./utils":21,"./version":23,"isarray":33}],18:[function(require,module,exports){
- var BufferUtil = require('../utils/buffer')
- var Polynomial = require('./polynomial')
- var Buffer = require('buffer').Buffer
- function ReedSolomonEncoder (degree) {
- this.genPoly = undefined
- this.degree = degree
- if (this.degree) this.initialize(this.degree)
- }
- ReedSolomonEncoder.prototype.initialize = function initialize (degree) {
-
- this.degree = degree
- this.genPoly = Polynomial.generateECPolynomial(this.degree)
- }
- ReedSolomonEncoder.prototype.encode = function encode (data) {
- if (!this.genPoly) {
- throw new Error('Encoder not initialized')
- }
-
-
- var pad = BufferUtil.alloc(this.degree)
- var paddedData = Buffer.concat([data, pad], data.length + this.degree)
-
-
- var remainder = Polynomial.mod(paddedData, this.genPoly)
-
-
-
- var start = this.degree - remainder.length
- if (start > 0) {
- var buff = BufferUtil.alloc(this.degree)
- remainder.copy(buff, start)
- return buff
- }
- return remainder
- }
- module.exports = ReedSolomonEncoder
- },{"../utils/buffer":28,"./polynomial":16,"buffer":30}],19:[function(require,module,exports){
- var numeric = '[0-9]+'
- var alphanumeric = '[A-Z $%*+\\-./:]+'
- var kanji = '(?:[u3000-u303F]|[u3040-u309F]|[u30A0-u30FF]|' +
- '[uFF00-uFFEF]|[u4E00-u9FAF]|[u2605-u2606]|[u2190-u2195]|u203B|' +
- '[u2010u2015u2018u2019u2025u2026u201Cu201Du2225u2260]|' +
- '[u0391-u0451]|[u00A7u00A8u00B1u00B4u00D7u00F7])+'
- kanji = kanji.replace(/u/g, '\\u')
- var byte = '(?:(?![A-Z0-9 $%*+\\-./:]|' + kanji + ')(?:.|[\r\n]))+'
- exports.KANJI = new RegExp(kanji, 'g')
- exports.BYTE_KANJI = new RegExp('[^A-Z0-9 $%*+\\-./:]+', 'g')
- exports.BYTE = new RegExp(byte, 'g')
- exports.NUMERIC = new RegExp(numeric, 'g')
- exports.ALPHANUMERIC = new RegExp(alphanumeric, 'g')
- var TEST_KANJI = new RegExp('^' + kanji + '$')
- var TEST_NUMERIC = new RegExp('^' + numeric + '$')
- var TEST_ALPHANUMERIC = new RegExp('^[A-Z0-9 $%*+\\-./:]+$')
- exports.testKanji = function testKanji (str) {
- return TEST_KANJI.test(str)
- }
- exports.testNumeric = function testNumeric (str) {
- return TEST_NUMERIC.test(str)
- }
- exports.testAlphanumeric = function testAlphanumeric (str) {
- return TEST_ALPHANUMERIC.test(str)
- }
- },{}],20:[function(require,module,exports){
- var Mode = require('./mode')
- var NumericData = require('./numeric-data')
- var AlphanumericData = require('./alphanumeric-data')
- var ByteData = require('./byte-data')
- var KanjiData = require('./kanji-data')
- var Regex = require('./regex')
- var Utils = require('./utils')
- var dijkstra = require('dijkstrajs')
- function getStringByteLength (str) {
- return unescape(encodeURIComponent(str)).length
- }
- function getSegments (regex, mode, str) {
- var segments = []
- var result
- while ((result = regex.exec(str)) !== null) {
- segments.push({
- data: result[0],
- index: result.index,
- mode: mode,
- length: result[0].length
- })
- }
- return segments
- }
- function getSegmentsFromString (dataStr) {
- var numSegs = getSegments(Regex.NUMERIC, Mode.NUMERIC, dataStr)
- var alphaNumSegs = getSegments(Regex.ALPHANUMERIC, Mode.ALPHANUMERIC, dataStr)
- var byteSegs
- var kanjiSegs
- if (Utils.isKanjiModeEnabled()) {
- byteSegs = getSegments(Regex.BYTE, Mode.BYTE, dataStr)
- kanjiSegs = getSegments(Regex.KANJI, Mode.KANJI, dataStr)
- } else {
- byteSegs = getSegments(Regex.BYTE_KANJI, Mode.BYTE, dataStr)
- kanjiSegs = []
- }
- var segs = numSegs.concat(alphaNumSegs, byteSegs, kanjiSegs)
- return segs
- .sort(function (s1, s2) {
- return s1.index - s2.index
- })
- .map(function (obj) {
- return {
- data: obj.data,
- mode: obj.mode,
- length: obj.length
- }
- })
- }
- function getSegmentBitsLength (length, mode) {
- switch (mode) {
- case Mode.NUMERIC:
- return NumericData.getBitsLength(length)
- case Mode.ALPHANUMERIC:
- return AlphanumericData.getBitsLength(length)
- case Mode.KANJI:
- return KanjiData.getBitsLength(length)
- case Mode.BYTE:
- return ByteData.getBitsLength(length)
- }
- }
- function mergeSegments (segs) {
- return segs.reduce(function (acc, curr) {
- var prevSeg = acc.length - 1 >= 0 ? acc[acc.length - 1] : null
- if (prevSeg && prevSeg.mode === curr.mode) {
- acc[acc.length - 1].data += curr.data
- return acc
- }
- acc.push(curr)
- return acc
- }, [])
- }
- function buildNodes (segs) {
- var nodes = []
- for (var i = 0; i < segs.length; i++) {
- var seg = segs[i]
- switch (seg.mode) {
- case Mode.NUMERIC:
- nodes.push([seg,
- { data: seg.data, mode: Mode.ALPHANUMERIC, length: seg.length },
- { data: seg.data, mode: Mode.BYTE, length: seg.length }
- ])
- break
- case Mode.ALPHANUMERIC:
- nodes.push([seg,
- { data: seg.data, mode: Mode.BYTE, length: seg.length }
- ])
- break
- case Mode.KANJI:
- nodes.push([seg,
- { data: seg.data, mode: Mode.BYTE, length: getStringByteLength(seg.data) }
- ])
- break
- case Mode.BYTE:
- nodes.push([
- { data: seg.data, mode: Mode.BYTE, length: getStringByteLength(seg.data) }
- ])
- }
- }
- return nodes
- }
- function buildGraph (nodes, version) {
- var table = {}
- var graph = {'start': {}}
- var prevNodeIds = ['start']
- for (var i = 0; i < nodes.length; i++) {
- var nodeGroup = nodes[i]
- var currentNodeIds = []
- for (var j = 0; j < nodeGroup.length; j++) {
- var node = nodeGroup[j]
- var key = '' + i + j
- currentNodeIds.push(key)
- table[key] = { node: node, lastCount: 0 }
- graph[key] = {}
- for (var n = 0; n < prevNodeIds.length; n++) {
- var prevNodeId = prevNodeIds[n]
- if (table[prevNodeId] && table[prevNodeId].node.mode === node.mode) {
- graph[prevNodeId][key] =
- getSegmentBitsLength(table[prevNodeId].lastCount + node.length, node.mode) -
- getSegmentBitsLength(table[prevNodeId].lastCount, node.mode)
- table[prevNodeId].lastCount += node.length
- } else {
- if (table[prevNodeId]) table[prevNodeId].lastCount = node.length
- graph[prevNodeId][key] = getSegmentBitsLength(node.length, node.mode) +
- 4 + Mode.getCharCountIndicator(node.mode, version)
- }
- }
- }
- prevNodeIds = currentNodeIds
- }
- for (n = 0; n < prevNodeIds.length; n++) {
- graph[prevNodeIds[n]]['end'] = 0
- }
- return { map: graph, table: table }
- }
- function buildSingleSegment (data, modesHint) {
- var mode
- var bestMode = Mode.getBestModeForData(data)
- mode = Mode.from(modesHint, bestMode)
-
- if (mode !== Mode.BYTE && mode.bit < bestMode.bit) {
- throw new Error('"' + data + '"' +
- ' cannot be encoded with mode ' + Mode.toString(mode) +
- '.\n Suggested mode is: ' + Mode.toString(bestMode))
- }
-
- if (mode === Mode.KANJI && !Utils.isKanjiModeEnabled()) {
- mode = Mode.BYTE
- }
- switch (mode) {
- case Mode.NUMERIC:
- return new NumericData(data)
- case Mode.ALPHANUMERIC:
- return new AlphanumericData(data)
- case Mode.KANJI:
- return new KanjiData(data)
- case Mode.BYTE:
- return new ByteData(data)
- }
- }
- exports.fromArray = function fromArray (array) {
- return array.reduce(function (acc, seg) {
- if (typeof seg === 'string') {
- acc.push(buildSingleSegment(seg, null))
- } else if (seg.data) {
- acc.push(buildSingleSegment(seg.data, seg.mode))
- }
- return acc
- }, [])
- }
- exports.fromString = function fromString (data, version) {
- var segs = getSegmentsFromString(data, Utils.isKanjiModeEnabled())
- var nodes = buildNodes(segs)
- var graph = buildGraph(nodes, version)
- var path = dijkstra.find_path(graph.map, 'start', 'end')
- var optimizedSegs = []
- for (var i = 1; i < path.length - 1; i++) {
- optimizedSegs.push(graph.table[path[i]].node)
- }
- return exports.fromArray(mergeSegments(optimizedSegs))
- }
- exports.rawSplit = function rawSplit (data) {
- return exports.fromArray(
- getSegmentsFromString(data, Utils.isKanjiModeEnabled())
- )
- }
- },{"./alphanumeric-data":3,"./byte-data":6,"./kanji-data":12,"./mode":14,"./numeric-data":15,"./regex":19,"./utils":21,"dijkstrajs":31}],21:[function(require,module,exports){
- var toSJISFunction
- var CODEWORDS_COUNT = [
- 0,
- 26, 44, 70, 100, 134, 172, 196, 242, 292, 346,
- 404, 466, 532, 581, 655, 733, 815, 901, 991, 1085,
- 1156, 1258, 1364, 1474, 1588, 1706, 1828, 1921, 2051, 2185,
- 2323, 2465, 2611, 2761, 2876, 3034, 3196, 3362, 3532, 3706
- ]
- exports.getSymbolSize = function getSymbolSize (version) {
- if (!version) throw new Error('"version" cannot be null or undefined')
- if (version < 1 || version > 40) throw new Error('"version" should be in range from 1 to 40')
- return version * 4 + 17
- }
- exports.getSymbolTotalCodewords = function getSymbolTotalCodewords (version) {
- return CODEWORDS_COUNT[version]
- }
- exports.getBCHDigit = function (data) {
- var digit = 0
- while (data !== 0) {
- digit++
- data >>>= 1
- }
- return digit
- }
- exports.setToSJISFunction = function setToSJISFunction (f) {
- if (typeof f !== 'function') {
- throw new Error('"toSJISFunc" is not a valid function.')
- }
- toSJISFunction = f
- }
- exports.isKanjiModeEnabled = function () {
- return typeof toSJISFunction !== 'undefined'
- }
- exports.toSJIS = function toSJIS (kanji) {
- return toSJISFunction(kanji)
- }
- },{}],22:[function(require,module,exports){
- exports.isValid = function isValid (version) {
- return !isNaN(version) && version >= 1 && version <= 40
- }
- },{}],23:[function(require,module,exports){
- var Utils = require('./utils')
- var ECCode = require('./error-correction-code')
- var ECLevel = require('./error-correction-level')
- var Mode = require('./mode')
- var VersionCheck = require('./version-check')
- var isArray = require('isarray')
- var G18 = (1 << 12) | (1 << 11) | (1 << 10) | (1 << 9) | (1 << 8) | (1 << 5) | (1 << 2) | (1 << 0)
- var G18_BCH = Utils.getBCHDigit(G18)
- function getBestVersionForDataLength (mode, length, errorCorrectionLevel) {
- for (var currentVersion = 1; currentVersion <= 40; currentVersion++) {
- if (length <= exports.getCapacity(currentVersion, errorCorrectionLevel, mode)) {
- return currentVersion
- }
- }
- return undefined
- }
- function getReservedBitsCount (mode, version) {
-
- return Mode.getCharCountIndicator(mode, version) + 4
- }
- function getTotalBitsFromDataArray (segments, version) {
- var totalBits = 0
- segments.forEach(function (data) {
- var reservedBits = getReservedBitsCount(data.mode, version)
- totalBits += reservedBits + data.getBitsLength()
- })
- return totalBits
- }
- function getBestVersionForMixedData (segments, errorCorrectionLevel) {
- for (var currentVersion = 1; currentVersion <= 40; currentVersion++) {
- var length = getTotalBitsFromDataArray(segments, currentVersion)
- if (length <= exports.getCapacity(currentVersion, errorCorrectionLevel, Mode.MIXED)) {
- return currentVersion
- }
- }
- return undefined
- }
- exports.from = function from (value, defaultValue) {
- if (VersionCheck.isValid(value)) {
- return parseInt(value, 10)
- }
- return defaultValue
- }
- exports.getCapacity = function getCapacity (version, errorCorrectionLevel, mode) {
- if (!VersionCheck.isValid(version)) {
- throw new Error('Invalid QR Code version')
- }
-
- if (typeof mode === 'undefined') mode = Mode.BYTE
-
- var totalCodewords = Utils.getSymbolTotalCodewords(version)
-
- var ecTotalCodewords = ECCode.getTotalCodewordsCount(version, errorCorrectionLevel)
-
- var dataTotalCodewordsBits = (totalCodewords - ecTotalCodewords) * 8
- if (mode === Mode.MIXED) return dataTotalCodewordsBits
- var usableBits = dataTotalCodewordsBits - getReservedBitsCount(mode, version)
-
- switch (mode) {
- case Mode.NUMERIC:
- return Math.floor((usableBits / 10) * 3)
- case Mode.ALPHANUMERIC:
- return Math.floor((usableBits / 11) * 2)
- case Mode.KANJI:
- return Math.floor(usableBits / 13)
- case Mode.BYTE:
- default:
- return Math.floor(usableBits / 8)
- }
- }
- exports.getBestVersionForData = function getBestVersionForData (data, errorCorrectionLevel) {
- var seg
- var ecl = ECLevel.from(errorCorrectionLevel, ECLevel.M)
- if (isArray(data)) {
- if (data.length > 1) {
- return getBestVersionForMixedData(data, ecl)
- }
- if (data.length === 0) {
- return 1
- }
- seg = data[0]
- } else {
- seg = data
- }
- return getBestVersionForDataLength(seg.mode, seg.getLength(), ecl)
- }
- exports.getEncodedBits = function getEncodedBits (version) {
- if (!VersionCheck.isValid(version) || version < 7) {
- throw new Error('Invalid QR Code version')
- }
- var d = version << 12
- while (Utils.getBCHDigit(d) - G18_BCH >= 0) {
- d ^= (G18 << (Utils.getBCHDigit(d) - G18_BCH))
- }
- return (version << 12) | d
- }
- },{"./error-correction-code":7,"./error-correction-level":8,"./mode":14,"./utils":21,"./version-check":22,"isarray":33}],24:[function(require,module,exports){
- var canPromise = require('./can-promise')
- var QRCode = require('./core/qrcode')
- var CanvasRenderer = require('./renderer/canvas')
- var SvgRenderer = require('./renderer/svg-tag.js')
- function renderCanvas (renderFunc, canvas, text, opts, cb) {
- var args = [].slice.call(arguments, 1)
- var argsNum = args.length
- var isLastArgCb = typeof args[argsNum - 1] === 'function'
- if (!isLastArgCb && !canPromise()) {
- throw new Error('Callback required as last argument')
- }
- if (isLastArgCb) {
- if (argsNum < 2) {
- throw new Error('Too few arguments provided')
- }
- if (argsNum === 2) {
- cb = text
- text = canvas
- canvas = opts = undefined
- } else if (argsNum === 3) {
- if (canvas.getContext && typeof cb === 'undefined') {
- cb = opts
- opts = undefined
- } else {
- cb = opts
- opts = text
- text = canvas
- canvas = undefined
- }
- }
- } else {
- if (argsNum < 1) {
- throw new Error('Too few arguments provided')
- }
- if (argsNum === 1) {
- text = canvas
- canvas = opts = undefined
- } else if (argsNum === 2 && !canvas.getContext) {
- opts = text
- text = canvas
- canvas = undefined
- }
- return new Promise(function (resolve, reject) {
- try {
- var data = QRCode.create(text, opts)
- resolve(renderFunc(data, canvas, opts))
- } catch (e) {
- reject(e)
- }
- })
- }
- try {
- var data = QRCode.create(text, opts)
- cb(null, renderFunc(data, canvas, opts))
- } catch (e) {
- cb(e)
- }
- }
- exports.create = QRCode.create
- exports.toCanvas = renderCanvas.bind(null, CanvasRenderer.render)
- exports.toDataURL = renderCanvas.bind(null, CanvasRenderer.renderToDataURL)
- exports.toString = renderCanvas.bind(null, function (data, _, opts) {
- return SvgRenderer.render(data, opts)
- })
- },{"./can-promise":1,"./core/qrcode":17,"./renderer/canvas":25,"./renderer/svg-tag.js":26}],25:[function(require,module,exports){
- var Utils = require('./utils')
- function clearCanvas (ctx, canvas, size) {
- ctx.clearRect(0, 0, canvas.width, canvas.height)
- if (!canvas.style) canvas.style = {}
- canvas.height = size
- canvas.width = size
- canvas.style.height = size + 'px'
- canvas.style.width = size + 'px'
- }
- function getCanvasElement () {
- try {
- return document.createElement('canvas')
- } catch (e) {
- throw new Error('You need to specify a canvas element')
- }
- }
- exports.render = function render (qrData, canvas, options) {
- var opts = options
- var canvasEl = canvas
- if (typeof opts === 'undefined' && (!canvas || !canvas.getContext)) {
- opts = canvas
- canvas = undefined
- }
- if (!canvas) {
- canvasEl = getCanvasElement()
- }
- opts = Utils.getOptions(opts)
- var size = Utils.getImageWidth(qrData.modules.size, opts)
- var ctx = canvasEl.getContext('2d')
- var image = ctx.createImageData(size, size)
- Utils.qrToImageData(image.data, qrData, opts)
- clearCanvas(ctx, canvasEl, size)
- ctx.putImageData(image, 0, 0)
- return canvasEl
- }
- exports.renderToDataURL = function renderToDataURL (qrData, canvas, options) {
- var opts = options
- if (typeof opts === 'undefined' && (!canvas || !canvas.getContext)) {
- opts = canvas
- canvas = undefined
- }
- if (!opts) opts = {}
- var canvasEl = exports.render(qrData, canvas, opts)
- var type = opts.type || 'image/png'
- var rendererOpts = opts.rendererOpts || {}
- return canvasEl.toDataURL(type, rendererOpts.quality)
- }
- },{"./utils":27}],26:[function(require,module,exports){
- var Utils = require('./utils')
- function getColorAttrib (color, attrib) {
- var alpha = color.a / 255
- var str = attrib + '="' + color.hex + '"'
- return alpha < 1
- ? str + ' ' + attrib + '-opacity="' + alpha.toFixed(2).slice(1) + '"'
- : str
- }
- function svgCmd (cmd, x, y) {
- var str = cmd + x
- if (typeof y !== 'undefined') str += ' ' + y
- return str
- }
- function qrToPath (data, size, margin) {
- var path = ''
- var moveBy = 0
- var newRow = false
- var lineLength = 0
- for (var i = 0; i < data.length; i++) {
- var col = Math.floor(i % size)
- var row = Math.floor(i / size)
- if (!col && !newRow) newRow = true
- if (data[i]) {
- lineLength++
- if (!(i > 0 && col > 0 && data[i - 1])) {
- path += newRow
- ? svgCmd('M', col + margin, 0.5 + row + margin)
- : svgCmd('m', moveBy, 0)
- moveBy = 0
- newRow = false
- }
- if (!(col + 1 < size && data[i + 1])) {
- path += svgCmd('h', lineLength)
- lineLength = 0
- }
- } else {
- moveBy++
- }
- }
- return path
- }
- exports.render = function render (qrData, options, cb) {
- var opts = Utils.getOptions(options)
- var size = qrData.modules.size
- var data = qrData.modules.data
- var qrcodesize = size + opts.margin * 2
- var bg = !opts.color.light.a
- ? ''
- : '<path ' + getColorAttrib(opts.color.light, 'fill') +
- ' d="M0 0h' + qrcodesize + 'v' + qrcodesize + 'H0z"/>'
- var path =
- '<path ' + getColorAttrib(opts.color.dark, 'stroke') +
- ' d="' + qrToPath(data, size, opts.margin) + '"/>'
- var viewBox = 'viewBox="' + '0 0 ' + qrcodesize + ' ' + qrcodesize + '"'
- var width = !opts.width ? '' : 'width="' + opts.width + '" height="' + opts.width + '" '
- var svgTag = '<svg xmlns="http://www.w3.org/2000/svg" ' + width + viewBox + ' shape-rendering="crispEdges">' + bg + path + '</svg>\n'
- if (typeof cb === 'function') {
- cb(null, svgTag)
- }
- return svgTag
- }
- },{"./utils":27}],27:[function(require,module,exports){
- function hex2rgba (hex) {
- if (typeof hex === 'number') {
- hex = hex.toString()
- }
- if (typeof hex !== 'string') {
- throw new Error('Color should be defined as hex string')
- }
- var hexCode = hex.slice().replace('#', '').split('')
- if (hexCode.length < 3 || hexCode.length === 5 || hexCode.length > 8) {
- throw new Error('Invalid hex color: ' + hex)
- }
-
- if (hexCode.length === 3 || hexCode.length === 4) {
- hexCode = Array.prototype.concat.apply([], hexCode.map(function (c) {
- return [c, c]
- }))
- }
-
- if (hexCode.length === 6) hexCode.push('F', 'F')
- var hexValue = parseInt(hexCode.join(''), 16)
- return {
- r: (hexValue >> 24) & 255,
- g: (hexValue >> 16) & 255,
- b: (hexValue >> 8) & 255,
- a: hexValue & 255,
- hex: '#' + hexCode.slice(0, 6).join('')
- }
- }
- exports.getOptions = function getOptions (options) {
- if (!options) options = {}
- if (!options.color) options.color = {}
- var margin = typeof options.margin === 'undefined' ||
- options.margin === null ||
- options.margin < 0 ? 4 : options.margin
- var width = options.width && options.width >= 21 ? options.width : undefined
- var scale = options.scale || 4
- return {
- width: width,
- scale: width ? 4 : scale,
- margin: margin,
- color: {
- dark: hex2rgba(options.color.dark || '#000000ff'),
- light: hex2rgba(options.color.light || '#ffffffff')
- },
- type: options.type,
- rendererOpts: options.rendererOpts || {}
- }
- }
- exports.getScale = function getScale (qrSize, opts) {
- return opts.width && opts.width >= qrSize + opts.margin * 2
- ? opts.width / (qrSize + opts.margin * 2)
- : opts.scale
- }
- exports.getImageWidth = function getImageWidth (qrSize, opts) {
- var scale = exports.getScale(qrSize, opts)
- return Math.floor((qrSize + opts.margin * 2) * scale)
- }
- exports.qrToImageData = function qrToImageData (imgData, qr, opts) {
- var size = qr.modules.size
- var data = qr.modules.data
- var scale = exports.getScale(size, opts)
- var symbolSize = Math.floor((size + opts.margin * 2) * scale)
- var scaledMargin = opts.margin * scale
- var palette = [opts.color.light, opts.color.dark]
- for (var i = 0; i < symbolSize; i++) {
- for (var j = 0; j < symbolSize; j++) {
- var posDst = (i * symbolSize + j) * 4
- var pxColor = opts.color.light
- if (i >= scaledMargin && j >= scaledMargin &&
- i < symbolSize - scaledMargin && j < symbolSize - scaledMargin) {
- var iSrc = Math.floor((i - scaledMargin) / scale)
- var jSrc = Math.floor((j - scaledMargin) / scale)
- pxColor = palette[data[iSrc * size + jSrc] ? 1 : 0]
- }
- imgData[posDst++] = pxColor.r
- imgData[posDst++] = pxColor.g
- imgData[posDst++] = pxColor.b
- imgData[posDst] = pxColor.a
- }
- }
- }
- },{}],28:[function(require,module,exports){
- 'use strict'
- var isArray = require('isarray')
- function typedArraySupport () {
-
- try {
- var arr = new Uint8Array(1)
- arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
- return arr.foo() === 42
- } catch (e) {
- return false
- }
- }
- Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
- var K_MAX_LENGTH = Buffer.TYPED_ARRAY_SUPPORT
- ? 0x7fffffff
- : 0x3fffffff
- function Buffer (arg, offset, length) {
- if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
- return new Buffer(arg, offset, length)
- }
- if (typeof arg === 'number') {
- return allocUnsafe(this, arg)
- }
- return from(this, arg, offset, length)
- }
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- Buffer.prototype.__proto__ = Uint8Array.prototype
- Buffer.__proto__ = Uint8Array
-
- if (typeof Symbol !== 'undefined' && Symbol.species &&
- Buffer[Symbol.species] === Buffer) {
- Object.defineProperty(Buffer, Symbol.species, {
- value: null,
- configurable: true,
- enumerable: false,
- writable: false
- })
- }
- }
- function checked (length) {
-
-
- 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 isnan (val) {
- return val !== val
- }
- function createBuffer (that, length) {
- var buf
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- buf = new Uint8Array(length)
- buf.__proto__ = Buffer.prototype
- } else {
-
- buf = that
- if (buf === null) {
- buf = new Buffer(length)
- }
- buf.length = length
- }
- return buf
- }
- function allocUnsafe (that, size) {
- var buf = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
- if (!Buffer.TYPED_ARRAY_SUPPORT) {
- for (var i = 0; i < size; ++i) {
- buf[i] = 0
- }
- }
- return buf
- }
- function fromString (that, string) {
- var length = byteLength(string) | 0
- var buf = createBuffer(that, length)
- var actual = buf.write(string)
- if (actual !== length) {
-
-
-
- buf = buf.slice(0, actual)
- }
- return buf
- }
- function fromArrayLike (that, array) {
- var length = array.length < 0 ? 0 : checked(array.length) | 0
- var buf = createBuffer(that, length)
- for (var i = 0; i < length; i += 1) {
- buf[i] = array[i] & 255
- }
- return buf
- }
- function fromArrayBuffer (that, array, byteOffset, length) {
- if (byteOffset < 0 || array.byteLength < byteOffset) {
- throw new RangeError('\'offset\' is out of bounds')
- }
- if (array.byteLength < byteOffset + (length || 0)) {
- throw new RangeError('\'length\' is out of 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)
- }
- if (Buffer.TYPED_ARRAY_SUPPORT) {
-
- buf.__proto__ = Buffer.prototype
- } else {
-
- buf = fromArrayLike(that, buf)
- }
- return buf
- }
- function fromObject (that, obj) {
- if (Buffer.isBuffer(obj)) {
- var len = checked(obj.length) | 0
- var buf = createBuffer(that, len)
- if (buf.length === 0) {
- return buf
- }
- obj.copy(buf, 0, 0, len)
- return buf
- }
- if (obj) {
- if ((typeof ArrayBuffer !== 'undefined' &&
- obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
- if (typeof obj.length !== 'number' || isnan(obj.length)) {
- return createBuffer(that, 0)
- }
- return fromArrayLike(that, obj)
- }
- if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
- return fromArrayLike(that, obj.data)
- }
- }
- throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
- }
- 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)
-
- if (codePoint > 0xD7FF && codePoint < 0xE000) {
-
- if (!leadSurrogate) {
-
- if (codePoint > 0xDBFF) {
-
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- continue
- } else if (i + 1 === length) {
-
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- continue
- }
-
- leadSurrogate = codePoint
- continue
- }
-
- if (codePoint < 0xDC00) {
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- leadSurrogate = codePoint
- continue
- }
-
- codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
- } else if (leadSurrogate) {
-
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- }
- leadSurrogate = null
-
- 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 byteLength (string) {
- if (Buffer.isBuffer(string)) {
- return string.length
- }
- if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
- (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
- return string.byteLength
- }
- if (typeof string !== 'string') {
- string = '' + string
- }
- var len = string.length
- if (len === 0) return 0
- return utf8ToBytes(string).length
- }
- 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
- }
- function utf8Write (buf, string, offset, length) {
- return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
- }
- function from (that, value, offset, length) {
- if (typeof value === 'number') {
- throw new TypeError('"value" argument must not be a number')
- }
- if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
- return fromArrayBuffer(that, value, offset, length)
- }
- if (typeof value === 'string') {
- return fromString(that, value, offset)
- }
- return fromObject(that, value)
- }
- Buffer.prototype.write = function write (string, offset, length) {
-
- if (offset === undefined) {
- length = this.length
- offset = 0
-
- } else if (length === undefined && typeof offset === 'string') {
- length = this.length
- offset = 0
-
- } else if (isFinite(offset)) {
- offset = offset | 0
- if (isFinite(length)) {
- length = length | 0
- } else {
- length = undefined
- }
- }
- 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')
- }
- return utf8Write(this, string, offset, length)
- }
- 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
- if (Buffer.TYPED_ARRAY_SUPPORT) {
- newBuf = this.subarray(start, end)
-
- newBuf.__proto__ = Buffer.prototype
- } else {
- var sliceLen = end - start
- newBuf = new Buffer(sliceLen, undefined)
- for (var i = 0; i < sliceLen; ++i) {
- newBuf[i] = this[i + start]
- }
- }
- return newBuf
- }
- Buffer.prototype.copy = function copy (target, targetStart, start, end) {
- 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
-
- if (end === start) return 0
- if (target.length === 0 || this.length === 0) return 0
-
- if (targetStart < 0) {
- throw new RangeError('targetStart out of bounds')
- }
- if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
- if (end < 0) throw new RangeError('sourceEnd out of bounds')
-
- if (end > this.length) end = this.length
- if (target.length - targetStart < end - start) {
- end = target.length - targetStart + start
- }
- var len = end - start
- var i
- if (this === target && start < targetStart && targetStart < end) {
-
- for (i = len - 1; i >= 0; --i) {
- target[i + targetStart] = this[i + start]
- }
- } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
-
- for (i = 0; i < len; ++i) {
- target[i + targetStart] = this[i + start]
- }
- } else {
- Uint8Array.prototype.set.call(
- target,
- this.subarray(start, start + len),
- targetStart
- )
- }
- return len
- }
- Buffer.prototype.fill = function fill (val, start, end) {
-
- if (typeof val === 'string') {
- if (typeof start === 'string') {
- start = 0
- end = this.length
- } else if (typeof end === 'string') {
- end = this.length
- }
- if (val.length === 1) {
- var code = val.charCodeAt(0)
- if (code < 256) {
- val = code
- }
- }
- } else if (typeof val === 'number') {
- val = val & 255
- }
-
- 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
- : new Buffer(val)
- var len = bytes.length
- for (i = 0; i < end - start; ++i) {
- this[i + start] = bytes[i % len]
- }
- }
- return this
- }
- Buffer.concat = function concat (list, length) {
- if (!isArray(list)) {
- throw new TypeError('"list" argument must be an Array of Buffers')
- }
- if (list.length === 0) {
- return createBuffer(null, 0)
- }
- var i
- if (length === undefined) {
- length = 0
- for (i = 0; i < list.length; ++i) {
- length += list[i].length
- }
- }
- var buffer = allocUnsafe(null, length)
- var pos = 0
- for (i = 0; i < list.length; ++i) {
- var buf = list[i]
- if (!Buffer.isBuffer(buf)) {
- throw new TypeError('"list" argument must be an Array of Buffers')
- }
- buf.copy(buffer, pos)
- pos += buf.length
- }
- return buffer
- }
- Buffer.byteLength = byteLength
- Buffer.prototype._isBuffer = true
- Buffer.isBuffer = function isBuffer (b) {
- return !!(b != null && b._isBuffer)
- }
- module.exports.alloc = function (size) {
- var buffer = new Buffer(size)
- buffer.fill(0)
- return buffer
- }
- module.exports.from = function (data) {
- return new Buffer(data)
- }
- },{"isarray":33}],29:[function(require,module,exports){
- 'use strict'
- exports.byteLength = byteLength
- exports.toByteArray = toByteArray
- exports.fromByteArray = fromByteArray
- var lookup = []
- var revLookup = []
- var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
- var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
- for (var i = 0, len = code.length; i < len; ++i) {
- lookup[i] = code[i]
- revLookup[code.charCodeAt(i)] = i
- }
- revLookup['-'.charCodeAt(0)] = 62
- revLookup['_'.charCodeAt(0)] = 63
- function getLens (b64) {
- var len = b64.length
- if (len % 4 > 0) {
- throw new Error('Invalid string. Length must be a multiple of 4')
- }
-
-
- var validLen = b64.indexOf('=')
- if (validLen === -1) validLen = len
- var placeHoldersLen = validLen === len
- ? 0
- : 4 - (validLen % 4)
- return [validLen, placeHoldersLen]
- }
- 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
-
- 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
- var parts = []
- var maxChunkLength = 16383
-
- for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
- parts.push(encodeChunk(
- uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)
- ))
- }
-
- 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('')
- }
- },{}],30:[function(require,module,exports){
- 'use strict'
- var base64 = require('base64-js')
- var ieee754 = require('ieee754')
- var customInspectSymbol =
- (typeof Symbol === 'function' && typeof Symbol.for === 'function')
- ? Symbol.for('nodejs.util.inspect.custom')
- : null
- exports.Buffer = Buffer
- exports.SlowBuffer = SlowBuffer
- exports.INSPECT_MAX_BYTES = 50
- var K_MAX_LENGTH = 0x7fffffff
- exports.kMaxLength = K_MAX_LENGTH
- 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 () {
-
- try {
- var arr = new Uint8Array(1)
- var proto = { foo: function () { return 42 } }
- Object.setPrototypeOf(proto, Uint8Array.prototype)
- Object.setPrototypeOf(arr, proto)
- 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"')
- }
-
- var buf = new Uint8Array(length)
- Object.setPrototypeOf(buf, Buffer.prototype)
- return buf
- }
- function Buffer (arg, encodingOrOffset, length) {
-
- 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)
- }
- 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
- function from (value, encodingOrOffset, length) {
- if (typeof value === 'string') {
- return fromString(value, encodingOrOffset)
- }
- if (ArrayBuffer.isView(value)) {
- return fromArrayLike(value)
- }
- if (value == null) {
- throw new 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)
- )
- }
- Buffer.from = function (value, encodingOrOffset, length) {
- return from(value, encodingOrOffset, length)
- }
- Object.setPrototypeOf(Buffer.prototype, Uint8Array.prototype)
- Object.setPrototypeOf(Buffer, 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) {
-
-
-
- return typeof encoding === 'string'
- ? createBuffer(size).fill(fill, encoding)
- : createBuffer(size).fill(fill)
- }
- return createBuffer(size)
- }
- Buffer.alloc = function (size, fill, encoding) {
- return alloc(size, fill, encoding)
- }
- function allocUnsafe (size) {
- assertSize(size)
- return createBuffer(size < 0 ? 0 : checked(size) | 0)
- }
- Buffer.allocUnsafe = function (size) {
- return allocUnsafe(size)
- }
- 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) {
-
-
-
- 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)
- }
-
- Object.setPrototypeOf(buf, 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) {
-
-
- 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) {
- length = 0
- }
- return Buffer.alloc(+length)
- }
- Buffer.isBuffer = function isBuffer (b) {
- return b != null && b._isBuffer === true &&
- b !== Buffer.prototype
- }
- 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
-
- 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
- }
- encoding = ('' + encoding).toLowerCase()
- loweredCase = true
- }
- }
- }
- Buffer.byteLength = byteLength
- function slowToString (encoding, start, end) {
- var loweredCase = false
-
-
-
-
-
-
- if (start === undefined || start < 0) {
- start = 0
- }
-
-
- if (start > this.length) {
- return ''
- }
- if (end === undefined || end > this.length) {
- end = this.length
- }
- if (end <= 0) {
- return ''
- }
-
- 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
- }
- }
- }
- Buffer.prototype._isBuffer = true
- function swap (b, n, m) {
- var i = b[n]
- b[n] = b[m]
- b[m] = i
- }
- Buffer.prototype.swap16 = function swap16 () {
- var len = this.length
- if (len % 2 !== 0) {
- throw new RangeError('Buffer size must be a multiple of 16-bits')
- }
- for (var i = 0; i < len; i += 2) {
- swap(this, i, i + 1)
- }
- return this
- }
- Buffer.prototype.swap32 = function swap32 () {
- var len = this.length
- if (len % 4 !== 0) {
- throw new RangeError('Buffer size must be a multiple of 32-bits')
- }
- for (var i = 0; i < len; i += 4) {
- swap(this, i, i + 3)
- swap(this, i + 1, i + 2)
- }
- return this
- }
- Buffer.prototype.swap64 = function swap64 () {
- var len = this.length
- if (len % 8 !== 0) {
- throw new RangeError('Buffer size must be a multiple of 64-bits')
- }
- for (var i = 0; i < len; i += 8) {
- swap(this, i, i + 7)
- swap(this, i + 1, i + 6)
- swap(this, i + 2, i + 5)
- swap(this, i + 3, i + 4)
- }
- return this
- }
- Buffer.prototype.toString = function toString () {
- var length = this.length
- if (length === 0) return ''
- if (arguments.length === 0) return utf8Slice(this, 0, length)
- return slowToString.apply(this, arguments)
- }
- Buffer.prototype.toLocaleString = Buffer.prototype.toString
- Buffer.prototype.equals = function equals (b) {
- if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
- if (this === b) return true
- return Buffer.compare(this, b) === 0
- }
- Buffer.prototype.inspect = function inspect () {
- var str = ''
- var max = exports.INSPECT_MAX_BYTES
- str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
- if (this.length > max) str += ' ... '
- return '<Buffer ' + str + '>'
- }
- if (customInspectSymbol) {
- Buffer.prototype[customInspectSymbol] = Buffer.prototype.inspect
- }
- 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
- }
- function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
-
- if (buffer.length === 0) return -1
-
- if (typeof byteOffset === 'string') {
- encoding = byteOffset
- byteOffset = 0
- } else if (byteOffset > 0x7fffffff) {
- byteOffset = 0x7fffffff
- } else if (byteOffset < -0x80000000) {
- byteOffset = -0x80000000
- }
- byteOffset = +byteOffset
- if (numberIsNaN(byteOffset)) {
-
- byteOffset = dir ? 0 : (buffer.length - 1)
- }
-
- 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
- }
-
- if (typeof val === 'string') {
- val = Buffer.from(val, encoding)
- }
-
- if (Buffer.isBuffer(val)) {
-
- if (val.length === 0) {
- return -1
- }
- return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
- } else if (typeof val === 'number') {
- val = val & 0xFF
- 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) {
-
- if (offset === undefined) {
- encoding = 'utf8'
- length = this.length
- offset = 0
-
- } else if (length === undefined && typeof offset === 'string') {
- encoding = offset
- length = this.length
- offset = 0
-
- } 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':
-
- 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) {
-
-
- codePoint = 0xFFFD
- bytesPerSequence = 1
- } else if (codePoint > 0xFFFF) {
-
- codePoint -= 0x10000
- res.push(codePoint >>> 10 & 0x3FF | 0xD800)
- codePoint = 0xDC00 | codePoint & 0x3FF
- }
- res.push(codePoint)
- i += bytesPerSequence
- }
- return decodeCodePointsArray(res)
- }
- var MAX_ARGUMENTS_LENGTH = 0x1000
- function decodeCodePointsArray (codePoints) {
- var len = codePoints.length
- if (len <= MAX_ARGUMENTS_LENGTH) {
- return String.fromCharCode.apply(String, codePoints)
- }
-
- 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 += hexSliceLookupTable[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)
-
- Object.setPrototypeOf(newBuf, Buffer.prototype)
- return newBuf
- }
- 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)
- }
- 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
-
- if (end === start) return 0
- if (target.length === 0 || this.length === 0) return 0
-
- 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')
-
- 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') {
-
- this.copyWithin(targetStart, start, end)
- } else if (this === target && start < targetStart && targetStart < 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
- }
- Buffer.prototype.fill = function fill (val, start, end, encoding) {
-
- 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') {
-
- val = code
- }
- }
- } else if (typeof val === 'number') {
- val = val & 255
- } else if (typeof val === 'boolean') {
- val = Number(val)
- }
-
- 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
- }
- var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
- function base64clean (str) {
-
- str = str.split('=')[0]
-
- str = str.trim().replace(INVALID_BASE64_RE, '')
-
- if (str.length < 2) return ''
-
- while (str.length % 4 !== 0) {
- str = str + '='
- }
- return str
- }
- 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)
-
- if (codePoint > 0xD7FF && codePoint < 0xE000) {
-
- if (!leadSurrogate) {
-
- if (codePoint > 0xDBFF) {
-
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- continue
- } else if (i + 1 === length) {
-
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- continue
- }
-
- leadSurrogate = codePoint
- continue
- }
-
- if (codePoint < 0xDC00) {
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- leadSurrogate = codePoint
- continue
- }
-
- codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
- } else if (leadSurrogate) {
-
- if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
- }
- leadSurrogate = null
-
- 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) {
-
- 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
- }
- 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) {
-
- return obj !== obj
- }
- var hexSliceLookupTable = (function () {
- var alphabet = '0123456789abcdef'
- var table = new Array(256)
- for (var i = 0; i < 16; ++i) {
- var i16 = i * 16
- for (var j = 0; j < 16; ++j) {
- table[i16 + j] = alphabet[i] + alphabet[j]
- }
- }
- return table
- })()
- },{"base64-js":29,"ieee754":32}],31:[function(require,module,exports){
- 'use strict';
- var dijkstra = {
- single_source_shortest_paths: function(graph, s, d) {
-
-
- var predecessors = {};
-
-
- var costs = {};
- costs[s] = 0;
-
-
-
-
- var open = dijkstra.PriorityQueue.make();
- open.push(s, 0);
- var closest,
- u, v,
- cost_of_s_to_u,
- adjacent_nodes,
- cost_of_e,
- cost_of_s_to_u_plus_cost_of_e,
- cost_of_s_to_v,
- first_visit;
- while (!open.empty()) {
-
-
- closest = open.pop();
- u = closest.value;
- cost_of_s_to_u = closest.cost;
-
- adjacent_nodes = graph[u] || {};
-
-
-
- for (v in adjacent_nodes) {
- if (adjacent_nodes.hasOwnProperty(v)) {
-
- cost_of_e = adjacent_nodes[v];
-
-
-
- cost_of_s_to_u_plus_cost_of_e = cost_of_s_to_u + cost_of_e;
-
-
-
-
- cost_of_s_to_v = costs[v];
- first_visit = (typeof costs[v] === 'undefined');
- if (first_visit || cost_of_s_to_v > cost_of_s_to_u_plus_cost_of_e) {
- costs[v] = cost_of_s_to_u_plus_cost_of_e;
- open.push(v, cost_of_s_to_u_plus_cost_of_e);
- predecessors[v] = u;
- }
- }
- }
- }
- if (typeof d !== 'undefined' && typeof costs[d] === 'undefined') {
- var msg = ['Could not find a path from ', s, ' to ', d, '.'].join('');
- throw new Error(msg);
- }
- return predecessors;
- },
- extract_shortest_path_from_predecessor_list: function(predecessors, d) {
- var nodes = [];
- var u = d;
- var predecessor;
- while (u) {
- nodes.push(u);
- predecessor = predecessors[u];
- u = predecessors[u];
- }
- nodes.reverse();
- return nodes;
- },
- find_path: function(graph, s, d) {
- var predecessors = dijkstra.single_source_shortest_paths(graph, s, d);
- return dijkstra.extract_shortest_path_from_predecessor_list(
- predecessors, d);
- },
-
- PriorityQueue: {
- make: function (opts) {
- var T = dijkstra.PriorityQueue,
- t = {},
- key;
- opts = opts || {};
- for (key in T) {
- if (T.hasOwnProperty(key)) {
- t[key] = T[key];
- }
- }
- t.queue = [];
- t.sorter = opts.sorter || T.default_sorter;
- return t;
- },
- default_sorter: function (a, b) {
- return a.cost - b.cost;
- },
-
- push: function (value, cost) {
- var item = {value: value, cost: cost};
- this.queue.push(item);
- this.queue.sort(this.sorter);
- },
-
- pop: function () {
- return this.queue.shift();
- },
- empty: function () {
- return this.queue.length === 0;
- }
- }
- };
- if (typeof module !== 'undefined') {
- module.exports = dijkstra;
- }
- },{}],32:[function(require,module,exports){
- 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
- }
- },{}],33:[function(require,module,exports){
- var toString = {}.toString;
- module.exports = Array.isArray || function (arr) {
- return toString.call(arr) == '[object Array]';
- };
- },{}]},{},[24])(24)
- });
|