1 | ;(function (sax) { // wrapper for non-node envs
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2 | sax.parser = function (strict, opt) { return new SAXParser(strict, opt) }
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3 | sax.SAXParser = SAXParser
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4 | sax.SAXStream = SAXStream
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5 | sax.createStream = createStream
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6 |
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7 | // When we pass the MAX_BUFFER_LENGTH position, start checking for buffer overruns.
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8 | // When we check, schedule the next check for MAX_BUFFER_LENGTH - (max(buffer lengths)),
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9 | // since that's the earliest that a buffer overrun could occur. This way, checks are
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10 | // as rare as required, but as often as necessary to ensure never crossing this bound.
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11 | // Furthermore, buffers are only tested at most once per write(), so passing a very
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12 | // large string into write() might have undesirable effects, but this is manageable by
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13 | // the caller, so it is assumed to be safe. Thus, a call to write() may, in the extreme
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14 | // edge case, result in creating at most one complete copy of the string passed in.
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15 | // Set to Infinity to have unlimited buffers.
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16 | sax.MAX_BUFFER_LENGTH = 64 * 1024
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17 |
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18 | var buffers = [
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19 | 'comment', 'sgmlDecl', 'textNode', 'tagName', 'doctype',
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20 | 'procInstName', 'procInstBody', 'entity', 'attribName',
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21 | 'attribValue', 'cdata', 'script'
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22 | ]
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23 |
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24 | sax.EVENTS = [
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25 | 'text',
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26 | 'processinginstruction',
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27 | 'sgmldeclaration',
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28 | 'doctype',
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29 | 'comment',
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30 | 'opentagstart',
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31 | 'attribute',
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32 | 'opentag',
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33 | 'closetag',
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34 | 'opencdata',
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35 | 'cdata',
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36 | 'closecdata',
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37 | 'error',
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38 | 'end',
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39 | 'ready',
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40 | 'script',
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41 | 'opennamespace',
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42 | 'closenamespace'
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43 | ]
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44 |
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45 | function SAXParser (strict, opt) {
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46 | if (!(this instanceof SAXParser)) {
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47 | return new SAXParser(strict, opt)
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48 | }
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49 |
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50 | var parser = this
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51 | clearBuffers(parser)
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52 | parser.q = parser.c = ''
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53 | parser.bufferCheckPosition = sax.MAX_BUFFER_LENGTH
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54 | parser.opt = opt || {}
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55 | parser.opt.lowercase = parser.opt.lowercase || parser.opt.lowercasetags
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56 | parser.looseCase = parser.opt.lowercase ? 'toLowerCase' : 'toUpperCase'
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57 | parser.tags = []
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58 | parser.closed = parser.closedRoot = parser.sawRoot = false
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59 | parser.tag = parser.error = null
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60 | parser.strict = !!strict
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61 | parser.noscript = !!(strict || parser.opt.noscript)
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62 | parser.state = S.BEGIN
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63 | parser.strictEntities = parser.opt.strictEntities
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64 | parser.ENTITIES = parser.strictEntities ? Object.create(sax.XML_ENTITIES) : Object.create(sax.ENTITIES)
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65 | parser.attribList = []
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66 |
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67 | // namespaces form a prototype chain.
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68 | // it always points at the current tag,
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69 | // which protos to its parent tag.
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70 | if (parser.opt.xmlns) {
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71 | parser.ns = Object.create(rootNS)
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72 | }
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73 |
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74 | // mostly just for error reporting
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75 | parser.trackPosition = parser.opt.position !== false
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76 | if (parser.trackPosition) {
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77 | parser.position = parser.line = parser.column = 0
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78 | }
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79 | emit(parser, 'onready')
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80 | }
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81 |
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82 | if (!Object.create) {
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83 | Object.create = function (o) {
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84 | function F () {}
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85 | F.prototype = o
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86 | var newf = new F()
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87 | return newf
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88 | }
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89 | }
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90 |
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91 | if (!Object.keys) {
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92 | Object.keys = function (o) {
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93 | var a = []
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94 | for (var i in o) if (o.hasOwnProperty(i)) a.push(i)
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95 | return a
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96 | }
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97 | }
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98 |
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99 | function checkBufferLength (parser) {
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100 | var maxAllowed = Math.max(sax.MAX_BUFFER_LENGTH, 10)
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101 | var maxActual = 0
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102 | for (var i = 0, l = buffers.length; i < l; i++) {
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103 | var len = parser[buffers[i]].length
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104 | if (len > maxAllowed) {
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105 | // Text/cdata nodes can get big, and since they're buffered,
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106 | // we can get here under normal conditions.
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107 | // Avoid issues by emitting the text node now,
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108 | // so at least it won't get any bigger.
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109 | switch (buffers[i]) {
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110 | case 'textNode':
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111 | closeText(parser)
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112 | break
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113 |
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114 | case 'cdata':
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115 | emitNode(parser, 'oncdata', parser.cdata)
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116 | parser.cdata = ''
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117 | break
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118 |
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119 | case 'script':
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120 | emitNode(parser, 'onscript', parser.script)
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121 | parser.script = ''
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122 | break
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123 |
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124 | default:
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125 | error(parser, 'Max buffer length exceeded: ' + buffers[i])
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126 | }
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127 | }
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128 | maxActual = Math.max(maxActual, len)
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129 | }
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130 | // schedule the next check for the earliest possible buffer overrun.
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131 | var m = sax.MAX_BUFFER_LENGTH - maxActual
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132 | parser.bufferCheckPosition = m + parser.position
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133 | }
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134 |
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135 | function clearBuffers (parser) {
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136 | for (var i = 0, l = buffers.length; i < l; i++) {
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137 | parser[buffers[i]] = ''
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138 | }
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139 | }
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140 |
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141 | function flushBuffers (parser) {
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142 | closeText(parser)
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143 | if (parser.cdata !== '') {
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144 | emitNode(parser, 'oncdata', parser.cdata)
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145 | parser.cdata = ''
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146 | }
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147 | if (parser.script !== '') {
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148 | emitNode(parser, 'onscript', parser.script)
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149 | parser.script = ''
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150 | }
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151 | }
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152 |
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153 | SAXParser.prototype = {
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154 | end: function () { end(this) },
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155 | write: write,
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156 | resume: function () { this.error = null; return this },
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157 | close: function () { return this.write(null) },
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158 | flush: function () { flushBuffers(this) }
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159 | }
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160 |
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161 | var Stream
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162 | try {
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163 | Stream = require('stream').Stream
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164 | } catch (ex) {
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165 | Stream = function () {}
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166 | }
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167 |
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168 | var streamWraps = sax.EVENTS.filter(function (ev) {
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169 | return ev !== 'error' && ev !== 'end'
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170 | })
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171 |
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172 | function createStream (strict, opt) {
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173 | return new SAXStream(strict, opt)
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174 | }
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175 |
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176 | function SAXStream (strict, opt) {
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177 | if (!(this instanceof SAXStream)) {
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178 | return new SAXStream(strict, opt)
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179 | }
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180 |
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181 | Stream.apply(this)
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182 |
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183 | this._parser = new SAXParser(strict, opt)
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184 | this.writable = true
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185 | this.readable = true
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186 |
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187 | var me = this
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188 |
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189 | this._parser.onend = function () {
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190 | me.emit('end')
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191 | }
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192 |
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193 | this._parser.onerror = function (er) {
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194 | me.emit('error', er)
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195 |
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196 | // if didn't throw, then means error was handled.
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197 | // go ahead and clear error, so we can write again.
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198 | me._parser.error = null
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199 | }
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200 |
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201 | this._decoder = null
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202 |
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203 | streamWraps.forEach(function (ev) {
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204 | Object.defineProperty(me, 'on' + ev, {
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205 | get: function () {
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206 | return me._parser['on' + ev]
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207 | },
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208 | set: function (h) {
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209 | if (!h) {
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210 | me.removeAllListeners(ev)
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211 | me._parser['on' + ev] = h
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212 | return h
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213 | }
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214 | me.on(ev, h)
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215 | },
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216 | enumerable: true,
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217 | configurable: false
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218 | })
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219 | })
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220 | }
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221 |
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222 | SAXStream.prototype = Object.create(Stream.prototype, {
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223 | constructor: {
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224 | value: SAXStream
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225 | }
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226 | })
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227 |
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228 | SAXStream.prototype.write = function (data) {
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229 | if (typeof Buffer === 'function' &&
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230 | typeof Buffer.isBuffer === 'function' &&
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231 | Buffer.isBuffer(data)) {
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232 | if (!this._decoder) {
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233 | var SD = require('string_decoder').StringDecoder
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234 | this._decoder = new SD('utf8')
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235 | }
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236 | data = this._decoder.write(data)
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237 | }
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238 |
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239 | this._parser.write(data.toString())
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240 | this.emit('data', data)
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241 | return true
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242 | }
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243 |
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244 | SAXStream.prototype.end = function (chunk) {
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245 | if (chunk && chunk.length) {
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246 | this.write(chunk)
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247 | }
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248 | this._parser.end()
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249 | return true
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250 | }
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251 |
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252 | SAXStream.prototype.on = function (ev, handler) {
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253 | var me = this
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254 | if (!me._parser['on' + ev] && streamWraps.indexOf(ev) !== -1) {
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255 | me._parser['on' + ev] = function () {
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256 | var args = arguments.length === 1 ? [arguments[0]] : Array.apply(null, arguments)
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257 | args.splice(0, 0, ev)
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258 | me.emit.apply(me, args)
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259 | }
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260 | }
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261 |
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262 | return Stream.prototype.on.call(me, ev, handler)
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263 | }
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264 |
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265 | // this really needs to be replaced with character classes.
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266 | // XML allows all manner of ridiculous numbers and digits.
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267 | var CDATA = '[CDATA['
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268 | var DOCTYPE = 'DOCTYPE'
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269 | var XML_NAMESPACE = 'http://www.w3.org/XML/1998/namespace'
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270 | var XMLNS_NAMESPACE = 'http://www.w3.org/2000/xmlns/'
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271 | var rootNS = { xml: XML_NAMESPACE, xmlns: XMLNS_NAMESPACE }
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272 |
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273 | // http://www.w3.org/TR/REC-xml/#NT-NameStartChar
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274 | // This implementation works on strings, a single character at a time
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275 | // as such, it cannot ever support astral-plane characters (10000-EFFFF)
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276 | // without a significant breaking change to either this parser, or the
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277 | // JavaScript language. Implementation of an emoji-capable xml parser
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278 | // is left as an exercise for the reader.
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279 | var nameStart = /[:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/
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280 |
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281 | var nameBody = /[:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\u00B7\u0300-\u036F\u203F-\u2040.\d-]/
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282 |
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283 | var entityStart = /[#:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD]/
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284 | var entityBody = /[#:_A-Za-z\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD\u00B7\u0300-\u036F\u203F-\u2040.\d-]/
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285 |
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286 | function isWhitespace (c) {
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287 | return c === ' ' || c === '\n' || c === '\r' || c === '\t'
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288 | }
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289 |
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290 | function isQuote (c) {
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291 | return c === '"' || c === '\''
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292 | }
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293 |
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294 | function isAttribEnd (c) {
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295 | return c === '>' || isWhitespace(c)
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296 | }
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297 |
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298 | function isMatch (regex, c) {
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299 | return regex.test(c)
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300 | }
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301 |
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302 | function notMatch (regex, c) {
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303 | return !isMatch(regex, c)
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304 | }
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305 |
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306 | var S = 0
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307 | sax.STATE = {
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308 | BEGIN: S++, // leading byte order mark or whitespace
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309 | BEGIN_WHITESPACE: S++, // leading whitespace
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310 | TEXT: S++, // general stuff
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311 | TEXT_ENTITY: S++, // & and such.
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312 | OPEN_WAKA: S++, // <
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313 | SGML_DECL: S++, // <!BLARG
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314 | SGML_DECL_QUOTED: S++, // <!BLARG foo "bar
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315 | DOCTYPE: S++, // <!DOCTYPE
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316 | DOCTYPE_QUOTED: S++, // <!DOCTYPE "//blah
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317 | DOCTYPE_DTD: S++, // <!DOCTYPE "//blah" [ ...
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318 | DOCTYPE_DTD_QUOTED: S++, // <!DOCTYPE "//blah" [ "foo
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319 | COMMENT_STARTING: S++, // <!-
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320 | COMMENT: S++, // <!--
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321 | COMMENT_ENDING: S++, // <!-- blah -
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322 | COMMENT_ENDED: S++, // <!-- blah --
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323 | CDATA: S++, // <![CDATA[ something
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324 | CDATA_ENDING: S++, // ]
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325 | CDATA_ENDING_2: S++, // ]]
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326 | PROC_INST: S++, // <?hi
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327 | PROC_INST_BODY: S++, // <?hi there
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328 | PROC_INST_ENDING: S++, // <?hi "there" ?
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329 | OPEN_TAG: S++, // <strong
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330 | OPEN_TAG_SLASH: S++, // <strong /
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331 | ATTRIB: S++, // <a
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332 | ATTRIB_NAME: S++, // <a foo
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333 | ATTRIB_NAME_SAW_WHITE: S++, // <a foo _
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334 | ATTRIB_VALUE: S++, // <a foo=
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335 | ATTRIB_VALUE_QUOTED: S++, // <a foo="bar
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336 | ATTRIB_VALUE_CLOSED: S++, // <a foo="bar"
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337 | ATTRIB_VALUE_UNQUOTED: S++, // <a foo=bar
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338 | ATTRIB_VALUE_ENTITY_Q: S++, // <foo bar="""
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339 | ATTRIB_VALUE_ENTITY_U: S++, // <foo bar="
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340 | CLOSE_TAG: S++, // </a
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341 | CLOSE_TAG_SAW_WHITE: S++, // </a >
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342 | SCRIPT: S++, // <script> ...
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343 | SCRIPT_ENDING: S++ // <script> ... <
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344 | }
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345 |
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346 | sax.XML_ENTITIES = {
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347 | 'amp': '&',
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348 | 'gt': '>',
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349 | 'lt': '<',
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350 | 'quot': '"',
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351 | 'apos': "'"
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352 | }
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353 |
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354 | sax.ENTITIES = {
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355 | 'amp': '&',
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356 | 'gt': '>',
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357 | 'lt': '<',
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358 | 'quot': '"',
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359 | 'apos': "'",
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360 | 'AElig': 198,
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361 | 'Aacute': 193,
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362 | 'Acirc': 194,
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363 | 'Agrave': 192,
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364 | 'Aring': 197,
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365 | 'Atilde': 195,
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366 | 'Auml': 196,
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367 | 'Ccedil': 199,
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368 | 'ETH': 208,
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369 | 'Eacute': 201,
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370 | 'Ecirc': 202,
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371 | 'Egrave': 200,
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372 | 'Euml': 203,
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373 | 'Iacute': 205,
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374 | 'Icirc': 206,
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375 | 'Igrave': 204,
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376 | 'Iuml': 207,
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377 | 'Ntilde': 209,
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378 | 'Oacute': 211,
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379 | 'Ocirc': 212,
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380 | 'Ograve': 210,
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381 | 'Oslash': 216,
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382 | 'Otilde': 213,
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383 | 'Ouml': 214,
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384 | 'THORN': 222,
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385 | 'Uacute': 218,
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386 | 'Ucirc': 219,
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387 | 'Ugrave': 217,
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388 | 'Uuml': 220,
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389 | 'Yacute': 221,
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390 | 'aacute': 225,
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391 | 'acirc': 226,
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392 | 'aelig': 230,
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393 | 'agrave': 224,
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394 | 'aring': 229,
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395 | 'atilde': 227,
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396 | 'auml': 228,
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397 | 'ccedil': 231,
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398 | 'eacute': 233,
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399 | 'ecirc': 234,
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400 | 'egrave': 232,
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401 | 'eth': 240,
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402 | 'euml': 235,
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403 | 'iacute': 237,
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404 | 'icirc': 238,
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405 | 'igrave': 236,
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406 | 'iuml': 239,
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407 | 'ntilde': 241,
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408 | 'oacute': 243,
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409 | 'ocirc': 244,
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410 | 'ograve': 242,
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411 | 'oslash': 248,
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412 | 'otilde': 245,
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413 | 'ouml': 246,
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414 | 'szlig': 223,
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415 | 'thorn': 254,
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416 | 'uacute': 250,
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417 | 'ucirc': 251,
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418 | 'ugrave': 249,
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419 | 'uuml': 252,
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420 | 'yacute': 253,
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421 | 'yuml': 255,
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422 | 'copy': 169,
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423 | 'reg': 174,
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424 | 'nbsp': 160,
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425 | 'iexcl': 161,
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426 | 'cent': 162,
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427 | 'pound': 163,
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428 | 'curren': 164,
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429 | 'yen': 165,
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430 | 'brvbar': 166,
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431 | 'sect': 167,
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432 | 'uml': 168,
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433 | 'ordf': 170,
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434 | 'laquo': 171,
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435 | 'not': 172,
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436 | 'shy': 173,
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437 | 'macr': 175,
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438 | 'deg': 176,
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439 | 'plusmn': 177,
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440 | 'sup1': 185,
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441 | 'sup2': 178,
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442 | 'sup3': 179,
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443 | 'acute': 180,
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444 | 'micro': 181,
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445 | 'para': 182,
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446 | 'middot': 183,
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447 | 'cedil': 184,
|
---|
448 | 'ordm': 186,
|
---|
449 | 'raquo': 187,
|
---|
450 | 'frac14': 188,
|
---|
451 | 'frac12': 189,
|
---|
452 | 'frac34': 190,
|
---|
453 | 'iquest': 191,
|
---|
454 | 'times': 215,
|
---|
455 | 'divide': 247,
|
---|
456 | 'OElig': 338,
|
---|
457 | 'oelig': 339,
|
---|
458 | 'Scaron': 352,
|
---|
459 | 'scaron': 353,
|
---|
460 | 'Yuml': 376,
|
---|
461 | 'fnof': 402,
|
---|
462 | 'circ': 710,
|
---|
463 | 'tilde': 732,
|
---|
464 | 'Alpha': 913,
|
---|
465 | 'Beta': 914,
|
---|
466 | 'Gamma': 915,
|
---|
467 | 'Delta': 916,
|
---|
468 | 'Epsilon': 917,
|
---|
469 | 'Zeta': 918,
|
---|
470 | 'Eta': 919,
|
---|
471 | 'Theta': 920,
|
---|
472 | 'Iota': 921,
|
---|
473 | 'Kappa': 922,
|
---|
474 | 'Lambda': 923,
|
---|
475 | 'Mu': 924,
|
---|
476 | 'Nu': 925,
|
---|
477 | 'Xi': 926,
|
---|
478 | 'Omicron': 927,
|
---|
479 | 'Pi': 928,
|
---|
480 | 'Rho': 929,
|
---|
481 | 'Sigma': 931,
|
---|
482 | 'Tau': 932,
|
---|
483 | 'Upsilon': 933,
|
---|
484 | 'Phi': 934,
|
---|
485 | 'Chi': 935,
|
---|
486 | 'Psi': 936,
|
---|
487 | 'Omega': 937,
|
---|
488 | 'alpha': 945,
|
---|
489 | 'beta': 946,
|
---|
490 | 'gamma': 947,
|
---|
491 | 'delta': 948,
|
---|
492 | 'epsilon': 949,
|
---|
493 | 'zeta': 950,
|
---|
494 | 'eta': 951,
|
---|
495 | 'theta': 952,
|
---|
496 | 'iota': 953,
|
---|
497 | 'kappa': 954,
|
---|
498 | 'lambda': 955,
|
---|
499 | 'mu': 956,
|
---|
500 | 'nu': 957,
|
---|
501 | 'xi': 958,
|
---|
502 | 'omicron': 959,
|
---|
503 | 'pi': 960,
|
---|
504 | 'rho': 961,
|
---|
505 | 'sigmaf': 962,
|
---|
506 | 'sigma': 963,
|
---|
507 | 'tau': 964,
|
---|
508 | 'upsilon': 965,
|
---|
509 | 'phi': 966,
|
---|
510 | 'chi': 967,
|
---|
511 | 'psi': 968,
|
---|
512 | 'omega': 969,
|
---|
513 | 'thetasym': 977,
|
---|
514 | 'upsih': 978,
|
---|
515 | 'piv': 982,
|
---|
516 | 'ensp': 8194,
|
---|
517 | 'emsp': 8195,
|
---|
518 | 'thinsp': 8201,
|
---|
519 | 'zwnj': 8204,
|
---|
520 | 'zwj': 8205,
|
---|
521 | 'lrm': 8206,
|
---|
522 | 'rlm': 8207,
|
---|
523 | 'ndash': 8211,
|
---|
524 | 'mdash': 8212,
|
---|
525 | 'lsquo': 8216,
|
---|
526 | 'rsquo': 8217,
|
---|
527 | 'sbquo': 8218,
|
---|
528 | 'ldquo': 8220,
|
---|
529 | 'rdquo': 8221,
|
---|
530 | 'bdquo': 8222,
|
---|
531 | 'dagger': 8224,
|
---|
532 | 'Dagger': 8225,
|
---|
533 | 'bull': 8226,
|
---|
534 | 'hellip': 8230,
|
---|
535 | 'permil': 8240,
|
---|
536 | 'prime': 8242,
|
---|
537 | 'Prime': 8243,
|
---|
538 | 'lsaquo': 8249,
|
---|
539 | 'rsaquo': 8250,
|
---|
540 | 'oline': 8254,
|
---|
541 | 'frasl': 8260,
|
---|
542 | 'euro': 8364,
|
---|
543 | 'image': 8465,
|
---|
544 | 'weierp': 8472,
|
---|
545 | 'real': 8476,
|
---|
546 | 'trade': 8482,
|
---|
547 | 'alefsym': 8501,
|
---|
548 | 'larr': 8592,
|
---|
549 | 'uarr': 8593,
|
---|
550 | 'rarr': 8594,
|
---|
551 | 'darr': 8595,
|
---|
552 | 'harr': 8596,
|
---|
553 | 'crarr': 8629,
|
---|
554 | 'lArr': 8656,
|
---|
555 | 'uArr': 8657,
|
---|
556 | 'rArr': 8658,
|
---|
557 | 'dArr': 8659,
|
---|
558 | 'hArr': 8660,
|
---|
559 | 'forall': 8704,
|
---|
560 | 'part': 8706,
|
---|
561 | 'exist': 8707,
|
---|
562 | 'empty': 8709,
|
---|
563 | 'nabla': 8711,
|
---|
564 | 'isin': 8712,
|
---|
565 | 'notin': 8713,
|
---|
566 | 'ni': 8715,
|
---|
567 | 'prod': 8719,
|
---|
568 | 'sum': 8721,
|
---|
569 | 'minus': 8722,
|
---|
570 | 'lowast': 8727,
|
---|
571 | 'radic': 8730,
|
---|
572 | 'prop': 8733,
|
---|
573 | 'infin': 8734,
|
---|
574 | 'ang': 8736,
|
---|
575 | 'and': 8743,
|
---|
576 | 'or': 8744,
|
---|
577 | 'cap': 8745,
|
---|
578 | 'cup': 8746,
|
---|
579 | 'int': 8747,
|
---|
580 | 'there4': 8756,
|
---|
581 | 'sim': 8764,
|
---|
582 | 'cong': 8773,
|
---|
583 | 'asymp': 8776,
|
---|
584 | 'ne': 8800,
|
---|
585 | 'equiv': 8801,
|
---|
586 | 'le': 8804,
|
---|
587 | 'ge': 8805,
|
---|
588 | 'sub': 8834,
|
---|
589 | 'sup': 8835,
|
---|
590 | 'nsub': 8836,
|
---|
591 | 'sube': 8838,
|
---|
592 | 'supe': 8839,
|
---|
593 | 'oplus': 8853,
|
---|
594 | 'otimes': 8855,
|
---|
595 | 'perp': 8869,
|
---|
596 | 'sdot': 8901,
|
---|
597 | 'lceil': 8968,
|
---|
598 | 'rceil': 8969,
|
---|
599 | 'lfloor': 8970,
|
---|
600 | 'rfloor': 8971,
|
---|
601 | 'lang': 9001,
|
---|
602 | 'rang': 9002,
|
---|
603 | 'loz': 9674,
|
---|
604 | 'spades': 9824,
|
---|
605 | 'clubs': 9827,
|
---|
606 | 'hearts': 9829,
|
---|
607 | 'diams': 9830
|
---|
608 | }
|
---|
609 |
|
---|
610 | Object.keys(sax.ENTITIES).forEach(function (key) {
|
---|
611 | var e = sax.ENTITIES[key]
|
---|
612 | var s = typeof e === 'number' ? String.fromCharCode(e) : e
|
---|
613 | sax.ENTITIES[key] = s
|
---|
614 | })
|
---|
615 |
|
---|
616 | for (var s in sax.STATE) {
|
---|
617 | sax.STATE[sax.STATE[s]] = s
|
---|
618 | }
|
---|
619 |
|
---|
620 | // shorthand
|
---|
621 | S = sax.STATE
|
---|
622 |
|
---|
623 | function emit (parser, event, data) {
|
---|
624 | parser[event] && parser[event](data)
|
---|
625 | }
|
---|
626 |
|
---|
627 | function emitNode (parser, nodeType, data) {
|
---|
628 | if (parser.textNode) closeText(parser)
|
---|
629 | emit(parser, nodeType, data)
|
---|
630 | }
|
---|
631 |
|
---|
632 | function closeText (parser) {
|
---|
633 | parser.textNode = textopts(parser.opt, parser.textNode)
|
---|
634 | if (parser.textNode) emit(parser, 'ontext', parser.textNode)
|
---|
635 | parser.textNode = ''
|
---|
636 | }
|
---|
637 |
|
---|
638 | function textopts (opt, text) {
|
---|
639 | if (opt.trim) text = text.trim()
|
---|
640 | if (opt.normalize) text = text.replace(/\s+/g, ' ')
|
---|
641 | return text
|
---|
642 | }
|
---|
643 |
|
---|
644 | function error (parser, er) {
|
---|
645 | closeText(parser)
|
---|
646 | if (parser.trackPosition) {
|
---|
647 | er += '\nLine: ' + parser.line +
|
---|
648 | '\nColumn: ' + parser.column +
|
---|
649 | '\nChar: ' + parser.c
|
---|
650 | }
|
---|
651 | er = new Error(er)
|
---|
652 | parser.error = er
|
---|
653 | emit(parser, 'onerror', er)
|
---|
654 | return parser
|
---|
655 | }
|
---|
656 |
|
---|
657 | function end (parser) {
|
---|
658 | if (parser.sawRoot && !parser.closedRoot) strictFail(parser, 'Unclosed root tag')
|
---|
659 | if ((parser.state !== S.BEGIN) &&
|
---|
660 | (parser.state !== S.BEGIN_WHITESPACE) &&
|
---|
661 | (parser.state !== S.TEXT)) {
|
---|
662 | error(parser, 'Unexpected end')
|
---|
663 | }
|
---|
664 | closeText(parser)
|
---|
665 | parser.c = ''
|
---|
666 | parser.closed = true
|
---|
667 | emit(parser, 'onend')
|
---|
668 | SAXParser.call(parser, parser.strict, parser.opt)
|
---|
669 | return parser
|
---|
670 | }
|
---|
671 |
|
---|
672 | function strictFail (parser, message) {
|
---|
673 | if (typeof parser !== 'object' || !(parser instanceof SAXParser)) {
|
---|
674 | throw new Error('bad call to strictFail')
|
---|
675 | }
|
---|
676 | if (parser.strict) {
|
---|
677 | error(parser, message)
|
---|
678 | }
|
---|
679 | }
|
---|
680 |
|
---|
681 | function newTag (parser) {
|
---|
682 | if (!parser.strict) parser.tagName = parser.tagName[parser.looseCase]()
|
---|
683 | var parent = parser.tags[parser.tags.length - 1] || parser
|
---|
684 | var tag = parser.tag = { name: parser.tagName, attributes: {} }
|
---|
685 |
|
---|
686 | // will be overridden if tag contails an xmlns="foo" or xmlns:foo="bar"
|
---|
687 | if (parser.opt.xmlns) {
|
---|
688 | tag.ns = parent.ns
|
---|
689 | }
|
---|
690 | parser.attribList.length = 0
|
---|
691 | emitNode(parser, 'onopentagstart', tag)
|
---|
692 | }
|
---|
693 |
|
---|
694 | function qname (name, attribute) {
|
---|
695 | var i = name.indexOf(':')
|
---|
696 | var qualName = i < 0 ? [ '', name ] : name.split(':')
|
---|
697 | var prefix = qualName[0]
|
---|
698 | var local = qualName[1]
|
---|
699 |
|
---|
700 | // <x "xmlns"="http://foo">
|
---|
701 | if (attribute && name === 'xmlns') {
|
---|
702 | prefix = 'xmlns'
|
---|
703 | local = ''
|
---|
704 | }
|
---|
705 |
|
---|
706 | return { prefix: prefix, local: local }
|
---|
707 | }
|
---|
708 |
|
---|
709 | function attrib (parser) {
|
---|
710 | if (!parser.strict) {
|
---|
711 | parser.attribName = parser.attribName[parser.looseCase]()
|
---|
712 | }
|
---|
713 |
|
---|
714 | if (parser.attribList.indexOf(parser.attribName) !== -1 ||
|
---|
715 | parser.tag.attributes.hasOwnProperty(parser.attribName)) {
|
---|
716 | parser.attribName = parser.attribValue = ''
|
---|
717 | return
|
---|
718 | }
|
---|
719 |
|
---|
720 | if (parser.opt.xmlns) {
|
---|
721 | var qn = qname(parser.attribName, true)
|
---|
722 | var prefix = qn.prefix
|
---|
723 | var local = qn.local
|
---|
724 |
|
---|
725 | if (prefix === 'xmlns') {
|
---|
726 | // namespace binding attribute. push the binding into scope
|
---|
727 | if (local === 'xml' && parser.attribValue !== XML_NAMESPACE) {
|
---|
728 | strictFail(parser,
|
---|
729 | 'xml: prefix must be bound to ' + XML_NAMESPACE + '\n' +
|
---|
730 | 'Actual: ' + parser.attribValue)
|
---|
731 | } else if (local === 'xmlns' && parser.attribValue !== XMLNS_NAMESPACE) {
|
---|
732 | strictFail(parser,
|
---|
733 | 'xmlns: prefix must be bound to ' + XMLNS_NAMESPACE + '\n' +
|
---|
734 | 'Actual: ' + parser.attribValue)
|
---|
735 | } else {
|
---|
736 | var tag = parser.tag
|
---|
737 | var parent = parser.tags[parser.tags.length - 1] || parser
|
---|
738 | if (tag.ns === parent.ns) {
|
---|
739 | tag.ns = Object.create(parent.ns)
|
---|
740 | }
|
---|
741 | tag.ns[local] = parser.attribValue
|
---|
742 | }
|
---|
743 | }
|
---|
744 |
|
---|
745 | // defer onattribute events until all attributes have been seen
|
---|
746 | // so any new bindings can take effect. preserve attribute order
|
---|
747 | // so deferred events can be emitted in document order
|
---|
748 | parser.attribList.push([parser.attribName, parser.attribValue])
|
---|
749 | } else {
|
---|
750 | // in non-xmlns mode, we can emit the event right away
|
---|
751 | parser.tag.attributes[parser.attribName] = parser.attribValue
|
---|
752 | emitNode(parser, 'onattribute', {
|
---|
753 | name: parser.attribName,
|
---|
754 | value: parser.attribValue
|
---|
755 | })
|
---|
756 | }
|
---|
757 |
|
---|
758 | parser.attribName = parser.attribValue = ''
|
---|
759 | }
|
---|
760 |
|
---|
761 | function openTag (parser, selfClosing) {
|
---|
762 | if (parser.opt.xmlns) {
|
---|
763 | // emit namespace binding events
|
---|
764 | var tag = parser.tag
|
---|
765 |
|
---|
766 | // add namespace info to tag
|
---|
767 | var qn = qname(parser.tagName)
|
---|
768 | tag.prefix = qn.prefix
|
---|
769 | tag.local = qn.local
|
---|
770 | tag.uri = tag.ns[qn.prefix] || ''
|
---|
771 |
|
---|
772 | if (tag.prefix && !tag.uri) {
|
---|
773 | strictFail(parser, 'Unbound namespace prefix: ' +
|
---|
774 | JSON.stringify(parser.tagName))
|
---|
775 | tag.uri = qn.prefix
|
---|
776 | }
|
---|
777 |
|
---|
778 | var parent = parser.tags[parser.tags.length - 1] || parser
|
---|
779 | if (tag.ns && parent.ns !== tag.ns) {
|
---|
780 | Object.keys(tag.ns).forEach(function (p) {
|
---|
781 | emitNode(parser, 'onopennamespace', {
|
---|
782 | prefix: p,
|
---|
783 | uri: tag.ns[p]
|
---|
784 | })
|
---|
785 | })
|
---|
786 | }
|
---|
787 |
|
---|
788 | // handle deferred onattribute events
|
---|
789 | // Note: do not apply default ns to attributes:
|
---|
790 | // http://www.w3.org/TR/REC-xml-names/#defaulting
|
---|
791 | for (var i = 0, l = parser.attribList.length; i < l; i++) {
|
---|
792 | var nv = parser.attribList[i]
|
---|
793 | var name = nv[0]
|
---|
794 | var value = nv[1]
|
---|
795 | var qualName = qname(name, true)
|
---|
796 | var prefix = qualName.prefix
|
---|
797 | var local = qualName.local
|
---|
798 | var uri = prefix === '' ? '' : (tag.ns[prefix] || '')
|
---|
799 | var a = {
|
---|
800 | name: name,
|
---|
801 | value: value,
|
---|
802 | prefix: prefix,
|
---|
803 | local: local,
|
---|
804 | uri: uri
|
---|
805 | }
|
---|
806 |
|
---|
807 | // if there's any attributes with an undefined namespace,
|
---|
808 | // then fail on them now.
|
---|
809 | if (prefix && prefix !== 'xmlns' && !uri) {
|
---|
810 | strictFail(parser, 'Unbound namespace prefix: ' +
|
---|
811 | JSON.stringify(prefix))
|
---|
812 | a.uri = prefix
|
---|
813 | }
|
---|
814 | parser.tag.attributes[name] = a
|
---|
815 | emitNode(parser, 'onattribute', a)
|
---|
816 | }
|
---|
817 | parser.attribList.length = 0
|
---|
818 | }
|
---|
819 |
|
---|
820 | parser.tag.isSelfClosing = !!selfClosing
|
---|
821 |
|
---|
822 | // process the tag
|
---|
823 | parser.sawRoot = true
|
---|
824 | parser.tags.push(parser.tag)
|
---|
825 | emitNode(parser, 'onopentag', parser.tag)
|
---|
826 | if (!selfClosing) {
|
---|
827 | // special case for <script> in non-strict mode.
|
---|
828 | if (!parser.noscript && parser.tagName.toLowerCase() === 'script') {
|
---|
829 | parser.state = S.SCRIPT
|
---|
830 | } else {
|
---|
831 | parser.state = S.TEXT
|
---|
832 | }
|
---|
833 | parser.tag = null
|
---|
834 | parser.tagName = ''
|
---|
835 | }
|
---|
836 | parser.attribName = parser.attribValue = ''
|
---|
837 | parser.attribList.length = 0
|
---|
838 | }
|
---|
839 |
|
---|
840 | function closeTag (parser) {
|
---|
841 | if (!parser.tagName) {
|
---|
842 | strictFail(parser, 'Weird empty close tag.')
|
---|
843 | parser.textNode += '</>'
|
---|
844 | parser.state = S.TEXT
|
---|
845 | return
|
---|
846 | }
|
---|
847 |
|
---|
848 | if (parser.script) {
|
---|
849 | if (parser.tagName !== 'script') {
|
---|
850 | parser.script += '</' + parser.tagName + '>'
|
---|
851 | parser.tagName = ''
|
---|
852 | parser.state = S.SCRIPT
|
---|
853 | return
|
---|
854 | }
|
---|
855 | emitNode(parser, 'onscript', parser.script)
|
---|
856 | parser.script = ''
|
---|
857 | }
|
---|
858 |
|
---|
859 | // first make sure that the closing tag actually exists.
|
---|
860 | // <a><b></c></b></a> will close everything, otherwise.
|
---|
861 | var t = parser.tags.length
|
---|
862 | var tagName = parser.tagName
|
---|
863 | if (!parser.strict) {
|
---|
864 | tagName = tagName[parser.looseCase]()
|
---|
865 | }
|
---|
866 | var closeTo = tagName
|
---|
867 | while (t--) {
|
---|
868 | var close = parser.tags[t]
|
---|
869 | if (close.name !== closeTo) {
|
---|
870 | // fail the first time in strict mode
|
---|
871 | strictFail(parser, 'Unexpected close tag')
|
---|
872 | } else {
|
---|
873 | break
|
---|
874 | }
|
---|
875 | }
|
---|
876 |
|
---|
877 | // didn't find it. we already failed for strict, so just abort.
|
---|
878 | if (t < 0) {
|
---|
879 | strictFail(parser, 'Unmatched closing tag: ' + parser.tagName)
|
---|
880 | parser.textNode += '</' + parser.tagName + '>'
|
---|
881 | parser.state = S.TEXT
|
---|
882 | return
|
---|
883 | }
|
---|
884 | parser.tagName = tagName
|
---|
885 | var s = parser.tags.length
|
---|
886 | while (s-- > t) {
|
---|
887 | var tag = parser.tag = parser.tags.pop()
|
---|
888 | parser.tagName = parser.tag.name
|
---|
889 | emitNode(parser, 'onclosetag', parser.tagName)
|
---|
890 |
|
---|
891 | var x = {}
|
---|
892 | for (var i in tag.ns) {
|
---|
893 | x[i] = tag.ns[i]
|
---|
894 | }
|
---|
895 |
|
---|
896 | var parent = parser.tags[parser.tags.length - 1] || parser
|
---|
897 | if (parser.opt.xmlns && tag.ns !== parent.ns) {
|
---|
898 | // remove namespace bindings introduced by tag
|
---|
899 | Object.keys(tag.ns).forEach(function (p) {
|
---|
900 | var n = tag.ns[p]
|
---|
901 | emitNode(parser, 'onclosenamespace', { prefix: p, uri: n })
|
---|
902 | })
|
---|
903 | }
|
---|
904 | }
|
---|
905 | if (t === 0) parser.closedRoot = true
|
---|
906 | parser.tagName = parser.attribValue = parser.attribName = ''
|
---|
907 | parser.attribList.length = 0
|
---|
908 | parser.state = S.TEXT
|
---|
909 | }
|
---|
910 |
|
---|
911 | function parseEntity (parser) {
|
---|
912 | var entity = parser.entity
|
---|
913 | var entityLC = entity.toLowerCase()
|
---|
914 | var num
|
---|
915 | var numStr = ''
|
---|
916 |
|
---|
917 | if (parser.ENTITIES[entity]) {
|
---|
918 | return parser.ENTITIES[entity]
|
---|
919 | }
|
---|
920 | if (parser.ENTITIES[entityLC]) {
|
---|
921 | return parser.ENTITIES[entityLC]
|
---|
922 | }
|
---|
923 | entity = entityLC
|
---|
924 | if (entity.charAt(0) === '#') {
|
---|
925 | if (entity.charAt(1) === 'x') {
|
---|
926 | entity = entity.slice(2)
|
---|
927 | num = parseInt(entity, 16)
|
---|
928 | numStr = num.toString(16)
|
---|
929 | } else {
|
---|
930 | entity = entity.slice(1)
|
---|
931 | num = parseInt(entity, 10)
|
---|
932 | numStr = num.toString(10)
|
---|
933 | }
|
---|
934 | }
|
---|
935 | entity = entity.replace(/^0+/, '')
|
---|
936 | if (isNaN(num) || numStr.toLowerCase() !== entity) {
|
---|
937 | strictFail(parser, 'Invalid character entity')
|
---|
938 | return '&' + parser.entity + ';'
|
---|
939 | }
|
---|
940 |
|
---|
941 | return String.fromCodePoint(num)
|
---|
942 | }
|
---|
943 |
|
---|
944 | function beginWhiteSpace (parser, c) {
|
---|
945 | if (c === '<') {
|
---|
946 | parser.state = S.OPEN_WAKA
|
---|
947 | parser.startTagPosition = parser.position
|
---|
948 | } else if (!isWhitespace(c)) {
|
---|
949 | // have to process this as a text node.
|
---|
950 | // weird, but happens.
|
---|
951 | strictFail(parser, 'Non-whitespace before first tag.')
|
---|
952 | parser.textNode = c
|
---|
953 | parser.state = S.TEXT
|
---|
954 | }
|
---|
955 | }
|
---|
956 |
|
---|
957 | function charAt (chunk, i) {
|
---|
958 | var result = ''
|
---|
959 | if (i < chunk.length) {
|
---|
960 | result = chunk.charAt(i)
|
---|
961 | }
|
---|
962 | return result
|
---|
963 | }
|
---|
964 |
|
---|
965 | function write (chunk) {
|
---|
966 | var parser = this
|
---|
967 | if (this.error) {
|
---|
968 | throw this.error
|
---|
969 | }
|
---|
970 | if (parser.closed) {
|
---|
971 | return error(parser,
|
---|
972 | 'Cannot write after close. Assign an onready handler.')
|
---|
973 | }
|
---|
974 | if (chunk === null) {
|
---|
975 | return end(parser)
|
---|
976 | }
|
---|
977 | if (typeof chunk === 'object') {
|
---|
978 | chunk = chunk.toString()
|
---|
979 | }
|
---|
980 | var i = 0
|
---|
981 | var c = ''
|
---|
982 | while (true) {
|
---|
983 | c = charAt(chunk, i++)
|
---|
984 | parser.c = c
|
---|
985 |
|
---|
986 | if (!c) {
|
---|
987 | break
|
---|
988 | }
|
---|
989 |
|
---|
990 | if (parser.trackPosition) {
|
---|
991 | parser.position++
|
---|
992 | if (c === '\n') {
|
---|
993 | parser.line++
|
---|
994 | parser.column = 0
|
---|
995 | } else {
|
---|
996 | parser.column++
|
---|
997 | }
|
---|
998 | }
|
---|
999 |
|
---|
1000 | switch (parser.state) {
|
---|
1001 | case S.BEGIN:
|
---|
1002 | parser.state = S.BEGIN_WHITESPACE
|
---|
1003 | if (c === '\uFEFF') {
|
---|
1004 | continue
|
---|
1005 | }
|
---|
1006 | beginWhiteSpace(parser, c)
|
---|
1007 | continue
|
---|
1008 |
|
---|
1009 | case S.BEGIN_WHITESPACE:
|
---|
1010 | beginWhiteSpace(parser, c)
|
---|
1011 | continue
|
---|
1012 |
|
---|
1013 | case S.TEXT:
|
---|
1014 | if (parser.sawRoot && !parser.closedRoot) {
|
---|
1015 | var starti = i - 1
|
---|
1016 | while (c && c !== '<' && c !== '&') {
|
---|
1017 | c = charAt(chunk, i++)
|
---|
1018 | if (c && parser.trackPosition) {
|
---|
1019 | parser.position++
|
---|
1020 | if (c === '\n') {
|
---|
1021 | parser.line++
|
---|
1022 | parser.column = 0
|
---|
1023 | } else {
|
---|
1024 | parser.column++
|
---|
1025 | }
|
---|
1026 | }
|
---|
1027 | }
|
---|
1028 | parser.textNode += chunk.substring(starti, i - 1)
|
---|
1029 | }
|
---|
1030 | if (c === '<' && !(parser.sawRoot && parser.closedRoot && !parser.strict)) {
|
---|
1031 | parser.state = S.OPEN_WAKA
|
---|
1032 | parser.startTagPosition = parser.position
|
---|
1033 | } else {
|
---|
1034 | if (!isWhitespace(c) && (!parser.sawRoot || parser.closedRoot)) {
|
---|
1035 | strictFail(parser, 'Text data outside of root node.')
|
---|
1036 | }
|
---|
1037 | if (c === '&') {
|
---|
1038 | parser.state = S.TEXT_ENTITY
|
---|
1039 | } else {
|
---|
1040 | parser.textNode += c
|
---|
1041 | }
|
---|
1042 | }
|
---|
1043 | continue
|
---|
1044 |
|
---|
1045 | case S.SCRIPT:
|
---|
1046 | // only non-strict
|
---|
1047 | if (c === '<') {
|
---|
1048 | parser.state = S.SCRIPT_ENDING
|
---|
1049 | } else {
|
---|
1050 | parser.script += c
|
---|
1051 | }
|
---|
1052 | continue
|
---|
1053 |
|
---|
1054 | case S.SCRIPT_ENDING:
|
---|
1055 | if (c === '/') {
|
---|
1056 | parser.state = S.CLOSE_TAG
|
---|
1057 | } else {
|
---|
1058 | parser.script += '<' + c
|
---|
1059 | parser.state = S.SCRIPT
|
---|
1060 | }
|
---|
1061 | continue
|
---|
1062 |
|
---|
1063 | case S.OPEN_WAKA:
|
---|
1064 | // either a /, ?, !, or text is coming next.
|
---|
1065 | if (c === '!') {
|
---|
1066 | parser.state = S.SGML_DECL
|
---|
1067 | parser.sgmlDecl = ''
|
---|
1068 | } else if (isWhitespace(c)) {
|
---|
1069 | // wait for it...
|
---|
1070 | } else if (isMatch(nameStart, c)) {
|
---|
1071 | parser.state = S.OPEN_TAG
|
---|
1072 | parser.tagName = c
|
---|
1073 | } else if (c === '/') {
|
---|
1074 | parser.state = S.CLOSE_TAG
|
---|
1075 | parser.tagName = ''
|
---|
1076 | } else if (c === '?') {
|
---|
1077 | parser.state = S.PROC_INST
|
---|
1078 | parser.procInstName = parser.procInstBody = ''
|
---|
1079 | } else {
|
---|
1080 | strictFail(parser, 'Unencoded <')
|
---|
1081 | // if there was some whitespace, then add that in.
|
---|
1082 | if (parser.startTagPosition + 1 < parser.position) {
|
---|
1083 | var pad = parser.position - parser.startTagPosition
|
---|
1084 | c = new Array(pad).join(' ') + c
|
---|
1085 | }
|
---|
1086 | parser.textNode += '<' + c
|
---|
1087 | parser.state = S.TEXT
|
---|
1088 | }
|
---|
1089 | continue
|
---|
1090 |
|
---|
1091 | case S.SGML_DECL:
|
---|
1092 | if ((parser.sgmlDecl + c).toUpperCase() === CDATA) {
|
---|
1093 | emitNode(parser, 'onopencdata')
|
---|
1094 | parser.state = S.CDATA
|
---|
1095 | parser.sgmlDecl = ''
|
---|
1096 | parser.cdata = ''
|
---|
1097 | } else if (parser.sgmlDecl + c === '--') {
|
---|
1098 | parser.state = S.COMMENT
|
---|
1099 | parser.comment = ''
|
---|
1100 | parser.sgmlDecl = ''
|
---|
1101 | } else if ((parser.sgmlDecl + c).toUpperCase() === DOCTYPE) {
|
---|
1102 | parser.state = S.DOCTYPE
|
---|
1103 | if (parser.doctype || parser.sawRoot) {
|
---|
1104 | strictFail(parser,
|
---|
1105 | 'Inappropriately located doctype declaration')
|
---|
1106 | }
|
---|
1107 | parser.doctype = ''
|
---|
1108 | parser.sgmlDecl = ''
|
---|
1109 | } else if (c === '>') {
|
---|
1110 | emitNode(parser, 'onsgmldeclaration', parser.sgmlDecl)
|
---|
1111 | parser.sgmlDecl = ''
|
---|
1112 | parser.state = S.TEXT
|
---|
1113 | } else if (isQuote(c)) {
|
---|
1114 | parser.state = S.SGML_DECL_QUOTED
|
---|
1115 | parser.sgmlDecl += c
|
---|
1116 | } else {
|
---|
1117 | parser.sgmlDecl += c
|
---|
1118 | }
|
---|
1119 | continue
|
---|
1120 |
|
---|
1121 | case S.SGML_DECL_QUOTED:
|
---|
1122 | if (c === parser.q) {
|
---|
1123 | parser.state = S.SGML_DECL
|
---|
1124 | parser.q = ''
|
---|
1125 | }
|
---|
1126 | parser.sgmlDecl += c
|
---|
1127 | continue
|
---|
1128 |
|
---|
1129 | case S.DOCTYPE:
|
---|
1130 | if (c === '>') {
|
---|
1131 | parser.state = S.TEXT
|
---|
1132 | emitNode(parser, 'ondoctype', parser.doctype)
|
---|
1133 | parser.doctype = true // just remember that we saw it.
|
---|
1134 | } else {
|
---|
1135 | parser.doctype += c
|
---|
1136 | if (c === '[') {
|
---|
1137 | parser.state = S.DOCTYPE_DTD
|
---|
1138 | } else if (isQuote(c)) {
|
---|
1139 | parser.state = S.DOCTYPE_QUOTED
|
---|
1140 | parser.q = c
|
---|
1141 | }
|
---|
1142 | }
|
---|
1143 | continue
|
---|
1144 |
|
---|
1145 | case S.DOCTYPE_QUOTED:
|
---|
1146 | parser.doctype += c
|
---|
1147 | if (c === parser.q) {
|
---|
1148 | parser.q = ''
|
---|
1149 | parser.state = S.DOCTYPE
|
---|
1150 | }
|
---|
1151 | continue
|
---|
1152 |
|
---|
1153 | case S.DOCTYPE_DTD:
|
---|
1154 | parser.doctype += c
|
---|
1155 | if (c === ']') {
|
---|
1156 | parser.state = S.DOCTYPE
|
---|
1157 | } else if (isQuote(c)) {
|
---|
1158 | parser.state = S.DOCTYPE_DTD_QUOTED
|
---|
1159 | parser.q = c
|
---|
1160 | }
|
---|
1161 | continue
|
---|
1162 |
|
---|
1163 | case S.DOCTYPE_DTD_QUOTED:
|
---|
1164 | parser.doctype += c
|
---|
1165 | if (c === parser.q) {
|
---|
1166 | parser.state = S.DOCTYPE_DTD
|
---|
1167 | parser.q = ''
|
---|
1168 | }
|
---|
1169 | continue
|
---|
1170 |
|
---|
1171 | case S.COMMENT:
|
---|
1172 | if (c === '-') {
|
---|
1173 | parser.state = S.COMMENT_ENDING
|
---|
1174 | } else {
|
---|
1175 | parser.comment += c
|
---|
1176 | }
|
---|
1177 | continue
|
---|
1178 |
|
---|
1179 | case S.COMMENT_ENDING:
|
---|
1180 | if (c === '-') {
|
---|
1181 | parser.state = S.COMMENT_ENDED
|
---|
1182 | parser.comment = textopts(parser.opt, parser.comment)
|
---|
1183 | if (parser.comment) {
|
---|
1184 | emitNode(parser, 'oncomment', parser.comment)
|
---|
1185 | }
|
---|
1186 | parser.comment = ''
|
---|
1187 | } else {
|
---|
1188 | parser.comment += '-' + c
|
---|
1189 | parser.state = S.COMMENT
|
---|
1190 | }
|
---|
1191 | continue
|
---|
1192 |
|
---|
1193 | case S.COMMENT_ENDED:
|
---|
1194 | if (c !== '>') {
|
---|
1195 | strictFail(parser, 'Malformed comment')
|
---|
1196 | // allow <!-- blah -- bloo --> in non-strict mode,
|
---|
1197 | // which is a comment of " blah -- bloo "
|
---|
1198 | parser.comment += '--' + c
|
---|
1199 | parser.state = S.COMMENT
|
---|
1200 | } else {
|
---|
1201 | parser.state = S.TEXT
|
---|
1202 | }
|
---|
1203 | continue
|
---|
1204 |
|
---|
1205 | case S.CDATA:
|
---|
1206 | if (c === ']') {
|
---|
1207 | parser.state = S.CDATA_ENDING
|
---|
1208 | } else {
|
---|
1209 | parser.cdata += c
|
---|
1210 | }
|
---|
1211 | continue
|
---|
1212 |
|
---|
1213 | case S.CDATA_ENDING:
|
---|
1214 | if (c === ']') {
|
---|
1215 | parser.state = S.CDATA_ENDING_2
|
---|
1216 | } else {
|
---|
1217 | parser.cdata += ']' + c
|
---|
1218 | parser.state = S.CDATA
|
---|
1219 | }
|
---|
1220 | continue
|
---|
1221 |
|
---|
1222 | case S.CDATA_ENDING_2:
|
---|
1223 | if (c === '>') {
|
---|
1224 | if (parser.cdata) {
|
---|
1225 | emitNode(parser, 'oncdata', parser.cdata)
|
---|
1226 | }
|
---|
1227 | emitNode(parser, 'onclosecdata')
|
---|
1228 | parser.cdata = ''
|
---|
1229 | parser.state = S.TEXT
|
---|
1230 | } else if (c === ']') {
|
---|
1231 | parser.cdata += ']'
|
---|
1232 | } else {
|
---|
1233 | parser.cdata += ']]' + c
|
---|
1234 | parser.state = S.CDATA
|
---|
1235 | }
|
---|
1236 | continue
|
---|
1237 |
|
---|
1238 | case S.PROC_INST:
|
---|
1239 | if (c === '?') {
|
---|
1240 | parser.state = S.PROC_INST_ENDING
|
---|
1241 | } else if (isWhitespace(c)) {
|
---|
1242 | parser.state = S.PROC_INST_BODY
|
---|
1243 | } else {
|
---|
1244 | parser.procInstName += c
|
---|
1245 | }
|
---|
1246 | continue
|
---|
1247 |
|
---|
1248 | case S.PROC_INST_BODY:
|
---|
1249 | if (!parser.procInstBody && isWhitespace(c)) {
|
---|
1250 | continue
|
---|
1251 | } else if (c === '?') {
|
---|
1252 | parser.state = S.PROC_INST_ENDING
|
---|
1253 | } else {
|
---|
1254 | parser.procInstBody += c
|
---|
1255 | }
|
---|
1256 | continue
|
---|
1257 |
|
---|
1258 | case S.PROC_INST_ENDING:
|
---|
1259 | if (c === '>') {
|
---|
1260 | emitNode(parser, 'onprocessinginstruction', {
|
---|
1261 | name: parser.procInstName,
|
---|
1262 | body: parser.procInstBody
|
---|
1263 | })
|
---|
1264 | parser.procInstName = parser.procInstBody = ''
|
---|
1265 | parser.state = S.TEXT
|
---|
1266 | } else {
|
---|
1267 | parser.procInstBody += '?' + c
|
---|
1268 | parser.state = S.PROC_INST_BODY
|
---|
1269 | }
|
---|
1270 | continue
|
---|
1271 |
|
---|
1272 | case S.OPEN_TAG:
|
---|
1273 | if (isMatch(nameBody, c)) {
|
---|
1274 | parser.tagName += c
|
---|
1275 | } else {
|
---|
1276 | newTag(parser)
|
---|
1277 | if (c === '>') {
|
---|
1278 | openTag(parser)
|
---|
1279 | } else if (c === '/') {
|
---|
1280 | parser.state = S.OPEN_TAG_SLASH
|
---|
1281 | } else {
|
---|
1282 | if (!isWhitespace(c)) {
|
---|
1283 | strictFail(parser, 'Invalid character in tag name')
|
---|
1284 | }
|
---|
1285 | parser.state = S.ATTRIB
|
---|
1286 | }
|
---|
1287 | }
|
---|
1288 | continue
|
---|
1289 |
|
---|
1290 | case S.OPEN_TAG_SLASH:
|
---|
1291 | if (c === '>') {
|
---|
1292 | openTag(parser, true)
|
---|
1293 | closeTag(parser)
|
---|
1294 | } else {
|
---|
1295 | strictFail(parser, 'Forward-slash in opening tag not followed by >')
|
---|
1296 | parser.state = S.ATTRIB
|
---|
1297 | }
|
---|
1298 | continue
|
---|
1299 |
|
---|
1300 | case S.ATTRIB:
|
---|
1301 | // haven't read the attribute name yet.
|
---|
1302 | if (isWhitespace(c)) {
|
---|
1303 | continue
|
---|
1304 | } else if (c === '>') {
|
---|
1305 | openTag(parser)
|
---|
1306 | } else if (c === '/') {
|
---|
1307 | parser.state = S.OPEN_TAG_SLASH
|
---|
1308 | } else if (isMatch(nameStart, c)) {
|
---|
1309 | parser.attribName = c
|
---|
1310 | parser.attribValue = ''
|
---|
1311 | parser.state = S.ATTRIB_NAME
|
---|
1312 | } else {
|
---|
1313 | strictFail(parser, 'Invalid attribute name')
|
---|
1314 | }
|
---|
1315 | continue
|
---|
1316 |
|
---|
1317 | case S.ATTRIB_NAME:
|
---|
1318 | if (c === '=') {
|
---|
1319 | parser.state = S.ATTRIB_VALUE
|
---|
1320 | } else if (c === '>') {
|
---|
1321 | strictFail(parser, 'Attribute without value')
|
---|
1322 | parser.attribValue = parser.attribName
|
---|
1323 | attrib(parser)
|
---|
1324 | openTag(parser)
|
---|
1325 | } else if (isWhitespace(c)) {
|
---|
1326 | parser.state = S.ATTRIB_NAME_SAW_WHITE
|
---|
1327 | } else if (isMatch(nameBody, c)) {
|
---|
1328 | parser.attribName += c
|
---|
1329 | } else {
|
---|
1330 | strictFail(parser, 'Invalid attribute name')
|
---|
1331 | }
|
---|
1332 | continue
|
---|
1333 |
|
---|
1334 | case S.ATTRIB_NAME_SAW_WHITE:
|
---|
1335 | if (c === '=') {
|
---|
1336 | parser.state = S.ATTRIB_VALUE
|
---|
1337 | } else if (isWhitespace(c)) {
|
---|
1338 | continue
|
---|
1339 | } else {
|
---|
1340 | strictFail(parser, 'Attribute without value')
|
---|
1341 | parser.tag.attributes[parser.attribName] = ''
|
---|
1342 | parser.attribValue = ''
|
---|
1343 | emitNode(parser, 'onattribute', {
|
---|
1344 | name: parser.attribName,
|
---|
1345 | value: ''
|
---|
1346 | })
|
---|
1347 | parser.attribName = ''
|
---|
1348 | if (c === '>') {
|
---|
1349 | openTag(parser)
|
---|
1350 | } else if (isMatch(nameStart, c)) {
|
---|
1351 | parser.attribName = c
|
---|
1352 | parser.state = S.ATTRIB_NAME
|
---|
1353 | } else {
|
---|
1354 | strictFail(parser, 'Invalid attribute name')
|
---|
1355 | parser.state = S.ATTRIB
|
---|
1356 | }
|
---|
1357 | }
|
---|
1358 | continue
|
---|
1359 |
|
---|
1360 | case S.ATTRIB_VALUE:
|
---|
1361 | if (isWhitespace(c)) {
|
---|
1362 | continue
|
---|
1363 | } else if (isQuote(c)) {
|
---|
1364 | parser.q = c
|
---|
1365 | parser.state = S.ATTRIB_VALUE_QUOTED
|
---|
1366 | } else {
|
---|
1367 | strictFail(parser, 'Unquoted attribute value')
|
---|
1368 | parser.state = S.ATTRIB_VALUE_UNQUOTED
|
---|
1369 | parser.attribValue = c
|
---|
1370 | }
|
---|
1371 | continue
|
---|
1372 |
|
---|
1373 | case S.ATTRIB_VALUE_QUOTED:
|
---|
1374 | if (c !== parser.q) {
|
---|
1375 | if (c === '&') {
|
---|
1376 | parser.state = S.ATTRIB_VALUE_ENTITY_Q
|
---|
1377 | } else {
|
---|
1378 | parser.attribValue += c
|
---|
1379 | }
|
---|
1380 | continue
|
---|
1381 | }
|
---|
1382 | attrib(parser)
|
---|
1383 | parser.q = ''
|
---|
1384 | parser.state = S.ATTRIB_VALUE_CLOSED
|
---|
1385 | continue
|
---|
1386 |
|
---|
1387 | case S.ATTRIB_VALUE_CLOSED:
|
---|
1388 | if (isWhitespace(c)) {
|
---|
1389 | parser.state = S.ATTRIB
|
---|
1390 | } else if (c === '>') {
|
---|
1391 | openTag(parser)
|
---|
1392 | } else if (c === '/') {
|
---|
1393 | parser.state = S.OPEN_TAG_SLASH
|
---|
1394 | } else if (isMatch(nameStart, c)) {
|
---|
1395 | strictFail(parser, 'No whitespace between attributes')
|
---|
1396 | parser.attribName = c
|
---|
1397 | parser.attribValue = ''
|
---|
1398 | parser.state = S.ATTRIB_NAME
|
---|
1399 | } else {
|
---|
1400 | strictFail(parser, 'Invalid attribute name')
|
---|
1401 | }
|
---|
1402 | continue
|
---|
1403 |
|
---|
1404 | case S.ATTRIB_VALUE_UNQUOTED:
|
---|
1405 | if (!isAttribEnd(c)) {
|
---|
1406 | if (c === '&') {
|
---|
1407 | parser.state = S.ATTRIB_VALUE_ENTITY_U
|
---|
1408 | } else {
|
---|
1409 | parser.attribValue += c
|
---|
1410 | }
|
---|
1411 | continue
|
---|
1412 | }
|
---|
1413 | attrib(parser)
|
---|
1414 | if (c === '>') {
|
---|
1415 | openTag(parser)
|
---|
1416 | } else {
|
---|
1417 | parser.state = S.ATTRIB
|
---|
1418 | }
|
---|
1419 | continue
|
---|
1420 |
|
---|
1421 | case S.CLOSE_TAG:
|
---|
1422 | if (!parser.tagName) {
|
---|
1423 | if (isWhitespace(c)) {
|
---|
1424 | continue
|
---|
1425 | } else if (notMatch(nameStart, c)) {
|
---|
1426 | if (parser.script) {
|
---|
1427 | parser.script += '</' + c
|
---|
1428 | parser.state = S.SCRIPT
|
---|
1429 | } else {
|
---|
1430 | strictFail(parser, 'Invalid tagname in closing tag.')
|
---|
1431 | }
|
---|
1432 | } else {
|
---|
1433 | parser.tagName = c
|
---|
1434 | }
|
---|
1435 | } else if (c === '>') {
|
---|
1436 | closeTag(parser)
|
---|
1437 | } else if (isMatch(nameBody, c)) {
|
---|
1438 | parser.tagName += c
|
---|
1439 | } else if (parser.script) {
|
---|
1440 | parser.script += '</' + parser.tagName
|
---|
1441 | parser.tagName = ''
|
---|
1442 | parser.state = S.SCRIPT
|
---|
1443 | } else {
|
---|
1444 | if (!isWhitespace(c)) {
|
---|
1445 | strictFail(parser, 'Invalid tagname in closing tag')
|
---|
1446 | }
|
---|
1447 | parser.state = S.CLOSE_TAG_SAW_WHITE
|
---|
1448 | }
|
---|
1449 | continue
|
---|
1450 |
|
---|
1451 | case S.CLOSE_TAG_SAW_WHITE:
|
---|
1452 | if (isWhitespace(c)) {
|
---|
1453 | continue
|
---|
1454 | }
|
---|
1455 | if (c === '>') {
|
---|
1456 | closeTag(parser)
|
---|
1457 | } else {
|
---|
1458 | strictFail(parser, 'Invalid characters in closing tag')
|
---|
1459 | }
|
---|
1460 | continue
|
---|
1461 |
|
---|
1462 | case S.TEXT_ENTITY:
|
---|
1463 | case S.ATTRIB_VALUE_ENTITY_Q:
|
---|
1464 | case S.ATTRIB_VALUE_ENTITY_U:
|
---|
1465 | var returnState
|
---|
1466 | var buffer
|
---|
1467 | switch (parser.state) {
|
---|
1468 | case S.TEXT_ENTITY:
|
---|
1469 | returnState = S.TEXT
|
---|
1470 | buffer = 'textNode'
|
---|
1471 | break
|
---|
1472 |
|
---|
1473 | case S.ATTRIB_VALUE_ENTITY_Q:
|
---|
1474 | returnState = S.ATTRIB_VALUE_QUOTED
|
---|
1475 | buffer = 'attribValue'
|
---|
1476 | break
|
---|
1477 |
|
---|
1478 | case S.ATTRIB_VALUE_ENTITY_U:
|
---|
1479 | returnState = S.ATTRIB_VALUE_UNQUOTED
|
---|
1480 | buffer = 'attribValue'
|
---|
1481 | break
|
---|
1482 | }
|
---|
1483 |
|
---|
1484 | if (c === ';') {
|
---|
1485 | parser[buffer] += parseEntity(parser)
|
---|
1486 | parser.entity = ''
|
---|
1487 | parser.state = returnState
|
---|
1488 | } else if (isMatch(parser.entity.length ? entityBody : entityStart, c)) {
|
---|
1489 | parser.entity += c
|
---|
1490 | } else {
|
---|
1491 | strictFail(parser, 'Invalid character in entity name')
|
---|
1492 | parser[buffer] += '&' + parser.entity + c
|
---|
1493 | parser.entity = ''
|
---|
1494 | parser.state = returnState
|
---|
1495 | }
|
---|
1496 |
|
---|
1497 | continue
|
---|
1498 |
|
---|
1499 | default:
|
---|
1500 | throw new Error(parser, 'Unknown state: ' + parser.state)
|
---|
1501 | }
|
---|
1502 | } // while
|
---|
1503 |
|
---|
1504 | if (parser.position >= parser.bufferCheckPosition) {
|
---|
1505 | checkBufferLength(parser)
|
---|
1506 | }
|
---|
1507 | return parser
|
---|
1508 | }
|
---|
1509 |
|
---|
1510 | /*! http://mths.be/fromcodepoint v0.1.0 by @mathias */
|
---|
1511 | /* istanbul ignore next */
|
---|
1512 | if (!String.fromCodePoint) {
|
---|
1513 | (function () {
|
---|
1514 | var stringFromCharCode = String.fromCharCode
|
---|
1515 | var floor = Math.floor
|
---|
1516 | var fromCodePoint = function () {
|
---|
1517 | var MAX_SIZE = 0x4000
|
---|
1518 | var codeUnits = []
|
---|
1519 | var highSurrogate
|
---|
1520 | var lowSurrogate
|
---|
1521 | var index = -1
|
---|
1522 | var length = arguments.length
|
---|
1523 | if (!length) {
|
---|
1524 | return ''
|
---|
1525 | }
|
---|
1526 | var result = ''
|
---|
1527 | while (++index < length) {
|
---|
1528 | var codePoint = Number(arguments[index])
|
---|
1529 | if (
|
---|
1530 | !isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity`
|
---|
1531 | codePoint < 0 || // not a valid Unicode code point
|
---|
1532 | codePoint > 0x10FFFF || // not a valid Unicode code point
|
---|
1533 | floor(codePoint) !== codePoint // not an integer
|
---|
1534 | ) {
|
---|
1535 | throw RangeError('Invalid code point: ' + codePoint)
|
---|
1536 | }
|
---|
1537 | if (codePoint <= 0xFFFF) { // BMP code point
|
---|
1538 | codeUnits.push(codePoint)
|
---|
1539 | } else { // Astral code point; split in surrogate halves
|
---|
1540 | // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
|
---|
1541 | codePoint -= 0x10000
|
---|
1542 | highSurrogate = (codePoint >> 10) + 0xD800
|
---|
1543 | lowSurrogate = (codePoint % 0x400) + 0xDC00
|
---|
1544 | codeUnits.push(highSurrogate, lowSurrogate)
|
---|
1545 | }
|
---|
1546 | if (index + 1 === length || codeUnits.length > MAX_SIZE) {
|
---|
1547 | result += stringFromCharCode.apply(null, codeUnits)
|
---|
1548 | codeUnits.length = 0
|
---|
1549 | }
|
---|
1550 | }
|
---|
1551 | return result
|
---|
1552 | }
|
---|
1553 | /* istanbul ignore next */
|
---|
1554 | if (Object.defineProperty) {
|
---|
1555 | Object.defineProperty(String, 'fromCodePoint', {
|
---|
1556 | value: fromCodePoint,
|
---|
1557 | configurable: true,
|
---|
1558 | writable: true
|
---|
1559 | })
|
---|
1560 | } else {
|
---|
1561 | String.fromCodePoint = fromCodePoint
|
---|
1562 | }
|
---|
1563 | }())
|
---|
1564 | }
|
---|
1565 | })(typeof exports === 'undefined' ? this.sax = {} : exports)
|
---|