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1566 lines
42 KiB
1566 lines
42 KiB
3 years ago
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;(function (sax) { // wrapper for non-node envs
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sax.parser = function (strict, opt) { return new SAXParser(strict, opt) }
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sax.SAXParser = SAXParser
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sax.SAXStream = SAXStream
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sax.createStream = createStream
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// When we pass the MAX_BUFFER_LENGTH position, start checking for buffer overruns.
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// When we check, schedule the next check for MAX_BUFFER_LENGTH - (max(buffer lengths)),
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// since that's the earliest that a buffer overrun could occur. This way, checks are
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// as rare as required, but as often as necessary to ensure never crossing this bound.
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// Furthermore, buffers are only tested at most once per write(), so passing a very
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// large string into write() might have undesirable effects, but this is manageable by
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// the caller, so it is assumed to be safe. Thus, a call to write() may, in the extreme
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// edge case, result in creating at most one complete copy of the string passed in.
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// Set to Infinity to have unlimited buffers.
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sax.MAX_BUFFER_LENGTH = 64 * 1024
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var buffers = [
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'comment', 'sgmlDecl', 'textNode', 'tagName', 'doctype',
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'procInstName', 'procInstBody', 'entity', 'attribName',
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'attribValue', 'cdata', 'script'
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]
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sax.EVENTS = [
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'text',
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'processinginstruction',
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'sgmldeclaration',
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'doctype',
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'comment',
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'opentagstart',
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'attribute',
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'opentag',
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'closetag',
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'opencdata',
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'cdata',
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'closecdata',
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'error',
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'end',
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'ready',
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'script',
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'opennamespace',
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'closenamespace'
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]
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function SAXParser (strict, opt) {
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if (!(this instanceof SAXParser)) {
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return new SAXParser(strict, opt)
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}
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var parser = this
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clearBuffers(parser)
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parser.q = parser.c = ''
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parser.bufferCheckPosition = sax.MAX_BUFFER_LENGTH
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parser.opt = opt || {}
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parser.opt.lowercase = parser.opt.lowercase || parser.opt.lowercasetags
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parser.looseCase = parser.opt.lowercase ? 'toLowerCase' : 'toUpperCase'
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parser.tags = []
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parser.closed = parser.closedRoot = parser.sawRoot = false
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parser.tag = parser.error = null
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parser.strict = !!strict
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parser.noscript = !!(strict || parser.opt.noscript)
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parser.state = S.BEGIN
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parser.strictEntities = parser.opt.strictEntities
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parser.ENTITIES = parser.strictEntities ? Object.create(sax.XML_ENTITIES) : Object.create(sax.ENTITIES)
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parser.attribList = []
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// namespaces form a prototype chain.
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// it always points at the current tag,
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// which protos to its parent tag.
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if (parser.opt.xmlns) {
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parser.ns = Object.create(rootNS)
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}
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// mostly just for error reporting
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parser.trackPosition = parser.opt.position !== false
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if (parser.trackPosition) {
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parser.position = parser.line = parser.column = 0
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}
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emit(parser, 'onready')
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}
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if (!Object.create) {
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Object.create = function (o) {
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function F () {}
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F.prototype = o
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var newf = new F()
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return newf
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}
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}
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if (!Object.keys) {
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Object.keys = function (o) {
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var a = []
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for (var i in o) if (o.hasOwnProperty(i)) a.push(i)
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return a
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}
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}
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function checkBufferLength (parser) {
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var maxAllowed = Math.max(sax.MAX_BUFFER_LENGTH, 10)
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var maxActual = 0
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for (var i = 0, l = buffers.length; i < l; i++) {
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var len = parser[buffers[i]].length
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if (len > maxAllowed) {
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// Text/cdata nodes can get big, and since they're buffered,
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// we can get here under normal conditions.
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// Avoid issues by emitting the text node now,
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// so at least it won't get any bigger.
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switch (buffers[i]) {
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case 'textNode':
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closeText(parser)
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break
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case 'cdata':
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emitNode(parser, 'oncdata', parser.cdata)
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parser.cdata = ''
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break
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case 'script':
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emitNode(parser, 'onscript', parser.script)
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parser.script = ''
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break
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default:
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error(parser, 'Max buffer length exceeded: ' + buffers[i])
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}
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}
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maxActual = Math.max(maxActual, len)
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}
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// schedule the next check for the earliest possible buffer overrun.
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var m = sax.MAX_BUFFER_LENGTH - maxActual
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parser.bufferCheckPosition = m + parser.position
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}
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function clearBuffers (parser) {
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for (var i = 0, l = buffers.length; i < l; i++) {
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parser[buffers[i]] = ''
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}
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}
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function flushBuffers (parser) {
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closeText(parser)
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if (parser.cdata !== '') {
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emitNode(parser, 'oncdata', parser.cdata)
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parser.cdata = ''
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}
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if (parser.script !== '') {
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emitNode(parser, 'onscript', parser.script)
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parser.script = ''
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}
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}
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SAXParser.prototype = {
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end: function () { end(this) },
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write: write,
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resume: function () { this.error = null; return this },
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close: function () { return this.write(null) },
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flush: function () { flushBuffers(this) }
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}
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var Stream
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try {
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Stream = require('stream').Stream
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} catch (ex) {
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Stream = function () {}
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}
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var streamWraps = sax.EVENTS.filter(function (ev) {
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return ev !== 'error' && ev !== 'end'
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})
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function createStream (strict, opt) {
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return new SAXStream(strict, opt)
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}
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function SAXStream (strict, opt) {
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if (!(this instanceof SAXStream)) {
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return new SAXStream(strict, opt)
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}
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Stream.apply(this)
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this._parser = new SAXParser(strict, opt)
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this.writable = true
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this.readable = true
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var me = this
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this._parser.onend = function () {
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me.emit('end')
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}
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this._parser.onerror = function (er) {
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me.emit('error', er)
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// if didn't throw, then means error was handled.
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// go ahead and clear error, so we can write again.
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me._parser.error = null
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}
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this._decoder = null
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streamWraps.forEach(function (ev) {
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Object.defineProperty(me, 'on' + ev, {
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get: function () {
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return me._parser['on' + ev]
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},
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set: function (h) {
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if (!h) {
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me.removeAllListeners(ev)
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me._parser['on' + ev] = h
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return h
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}
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me.on(ev, h)
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},
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enumerable: true,
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configurable: false
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})
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})
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}
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SAXStream.prototype = Object.create(Stream.prototype, {
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constructor: {
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value: SAXStream
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}
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})
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SAXStream.prototype.write = function (data) {
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if (typeof Buffer === 'function' &&
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typeof Buffer.isBuffer === 'function' &&
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Buffer.isBuffer(data)) {
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if (!this._decoder) {
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var SD = require('string_decoder').StringDecoder
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this._decoder = new SD('utf8')
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}
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data = this._decoder.write(data)
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}
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this._parser.write(data.toString())
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this.emit('data', data)
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return true
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}
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SAXStream.prototype.end = function (chunk) {
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if (chunk && chunk.length) {
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this.write(chunk)
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}
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this._parser.end()
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return true
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}
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SAXStream.prototype.on = function (ev, handler) {
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var me = this
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if (!me._parser['on' + ev] && streamWraps.indexOf(ev) !== -1) {
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me._parser['on' + ev] = function () {
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var args = arguments.length === 1 ? [arguments[0]] : Array.apply(null, arguments)
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args.splice(0, 0, ev)
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me.emit.apply(me, args)
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}
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}
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return Stream.prototype.on.call(me, ev, handler)
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}
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// this really needs to be replaced with character classes.
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// XML allows all manner of ridiculous numbers and digits.
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var CDATA = '[CDATA['
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var DOCTYPE = 'DOCTYPE'
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var XML_NAMESPACE = 'http://www.w3.org/XML/1998/namespace'
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var XMLNS_NAMESPACE = 'http://www.w3.org/2000/xmlns/'
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var rootNS = { xml: XML_NAMESPACE, xmlns: XMLNS_NAMESPACE }
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// http://www.w3.org/TR/REC-xml/#NT-NameStartChar
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// This implementation works on strings, a single character at a time
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// as such, it cannot ever support astral-plane characters (10000-EFFFF)
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// without a significant breaking change to either this parser, or the
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// JavaScript language. Implementation of an emoji-capable xml parser
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// is left as an exercise for the reader.
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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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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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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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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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function isWhitespace (c) {
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return c === ' ' || c === '\n' || c === '\r' || c === '\t'
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}
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function isQuote (c) {
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return c === '"' || c === '\''
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}
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function isAttribEnd (c) {
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return c === '>' || isWhitespace(c)
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}
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function isMatch (regex, c) {
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return regex.test(c)
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}
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function notMatch (regex, c) {
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||
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return !isMatch(regex, c)
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||
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}
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var S = 0
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sax.STATE = {
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||
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BEGIN: S++, // leading byte order mark or whitespace
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BEGIN_WHITESPACE: S++, // leading whitespace
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||
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TEXT: S++, // general stuff
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||
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TEXT_ENTITY: S++, // & and such.
|
||
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OPEN_WAKA: S++, // <
|
||
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SGML_DECL: S++, // <!BLARG
|
||
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SGML_DECL_QUOTED: S++, // <!BLARG foo "bar
|
||
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DOCTYPE: S++, // <!DOCTYPE
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||
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DOCTYPE_QUOTED: S++, // <!DOCTYPE "//blah
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||
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DOCTYPE_DTD: S++, // <!DOCTYPE "//blah" [ ...
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||
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DOCTYPE_DTD_QUOTED: S++, // <!DOCTYPE "//blah" [ "foo
|
||
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COMMENT_STARTING: S++, // <!-
|
||
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COMMENT: S++, // <!--
|
||
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COMMENT_ENDING: S++, // <!-- blah -
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||
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COMMENT_ENDED: S++, // <!-- blah --
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||
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CDATA: S++, // <![CDATA[ something
|
||
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CDATA_ENDING: S++, // ]
|
||
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CDATA_ENDING_2: S++, // ]]
|
||
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PROC_INST: S++, // <?hi
|
||
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PROC_INST_BODY: S++, // <?hi there
|
||
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PROC_INST_ENDING: S++, // <?hi "there" ?
|
||
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OPEN_TAG: S++, // <strong
|
||
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OPEN_TAG_SLASH: S++, // <strong /
|
||
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ATTRIB: S++, // <a
|
||
|
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ATTRIB_NAME: S++, // <a foo
|
||
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ATTRIB_NAME_SAW_WHITE: S++, // <a foo _
|
||
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ATTRIB_VALUE: S++, // <a foo=
|
||
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ATTRIB_VALUE_QUOTED: S++, // <a foo="bar
|
||
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ATTRIB_VALUE_CLOSED: S++, // <a foo="bar"
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||
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ATTRIB_VALUE_UNQUOTED: S++, // <a foo=bar
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||
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ATTRIB_VALUE_ENTITY_Q: S++, // <foo bar="""
|
||
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ATTRIB_VALUE_ENTITY_U: S++, // <foo bar="
|
||
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CLOSE_TAG: S++, // </a
|
||
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CLOSE_TAG_SAW_WHITE: S++, // </a >
|
||
|
|
SCRIPT: S++, // <script> ...
|
||
|
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SCRIPT_ENDING: S++ // <script> ... <
|
||
|
|
}
|
||
|
|
|
||
|
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sax.XML_ENTITIES = {
|
||
|
|
'amp': '&',
|
||
|
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'gt': '>',
|
||
|
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'lt': '<',
|
||
|
|
'quot': '"',
|
||
|
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'apos': "'"
|
||
|
|
}
|
||
|
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|
||
|
|
sax.ENTITIES = {
|
||
|
|
'amp': '&',
|
||
|
|
'gt': '>',
|
||
|
|
'lt': '<',
|
||
|
|
'quot': '"',
|
||
|
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'apos': "'",
|
||
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'AElig': 198,
|
||
|
|
'Aacute': 193,
|
||
|
|
'Acirc': 194,
|
||
|
|
'Agrave': 192,
|
||
|
|
'Aring': 197,
|
||
|
|
'Atilde': 195,
|
||
|
|
'Auml': 196,
|
||
|
|
'Ccedil': 199,
|
||
|
|
'ETH': 208,
|
||
|
|
'Eacute': 201,
|
||
|
|
'Ecirc': 202,
|
||
|
|
'Egrave': 200,
|
||
|
|
'Euml': 203,
|
||
|
|
'Iacute': 205,
|
||
|
|
'Icirc': 206,
|
||
|
|
'Igrave': 204,
|
||
|
|
'Iuml': 207,
|
||
|
|
'Ntilde': 209,
|
||
|
|
'Oacute': 211,
|
||
|
|
'Ocirc': 212,
|
||
|
|
'Ograve': 210,
|
||
|
|
'Oslash': 216,
|
||
|
|
'Otilde': 213,
|
||
|
|
'Ouml': 214,
|
||
|
|
'THORN': 222,
|
||
|
|
'Uacute': 218,
|
||
|
|
'Ucirc': 219,
|
||
|
|
'Ugrave': 217,
|
||
|
|
'Uuml': 220,
|
||
|
|
'Yacute': 221,
|
||
|
|
'aacute': 225,
|
||
|
|
'acirc': 226,
|
||
|
|
'aelig': 230,
|
||
|
|
'agrave': 224,
|
||
|
|
'aring': 229,
|
||
|
|
'atilde': 227,
|
||
|
|
'auml': 228,
|
||
|
|
'ccedil': 231,
|
||
|
|
'eacute': 233,
|
||
|
|
'ecirc': 234,
|
||
|
|
'egrave': 232,
|
||
|
|
'eth': 240,
|
||
|
|
'euml': 235,
|
||
|
|
'iacute': 237,
|
||
|
|
'icirc': 238,
|
||
|
|
'igrave': 236,
|
||
|
|
'iuml': 239,
|
||
|
|
'ntilde': 241,
|
||
|
|
'oacute': 243,
|
||
|
|
'ocirc': 244,
|
||
|
|
'ograve': 242,
|
||
|
|
'oslash': 248,
|
||
|
|
'otilde': 245,
|
||
|
|
'ouml': 246,
|
||
|
|
'szlig': 223,
|
||
|
|
'thorn': 254,
|
||
|
|
'uacute': 250,
|
||
|
|
'ucirc': 251,
|
||
|
|
'ugrave': 249,
|
||
|
|
'uuml': 252,
|
||
|
|
'yacute': 253,
|
||
|
|
'yuml': 255,
|
||
|
|
'copy': 169,
|
||
|
|
'reg': 174,
|
||
|
|
'nbsp': 160,
|
||
|
|
'iexcl': 161,
|
||
|
|
'cent': 162,
|
||
|
|
'pound': 163,
|
||
|
|
'curren': 164,
|
||
|
|
'yen': 165,
|
||
|
|
'brvbar': 166,
|
||
|
|
'sect': 167,
|
||
|
|
'uml': 168,
|
||
|
|
'ordf': 170,
|
||
|
|
'laquo': 171,
|
||
|
|
'not': 172,
|
||
|
|
'shy': 173,
|
||
|
|
'macr': 175,
|
||
|
|
'deg': 176,
|
||
|
|
'plusmn': 177,
|
||
|
|
'sup1': 185,
|
||
|
|
'sup2': 178,
|
||
|
|
'sup3': 179,
|
||
|
|
'acute': 180,
|
||
|
|
'micro': 181,
|
||
|
|
'para': 182,
|
||
|
|
'middot': 183,
|
||
|
|
'cedil': 184,
|
||
|
|
'ordm': 186,
|
||
|
|
'raquo': 187,
|
||
|
|
'frac14': 188,
|
||
|
|
'frac12': 189,
|
||
|
|
'frac34': 190,
|
||
|
|
'iquest': 191,
|
||
|
|
'times': 215,
|
||
|
|
'divide': 247,
|
||
|
|
'OElig': 338,
|
||
|
|
'oelig': 339,
|
||
|
|
'Scaron': 352,
|
||
|
|
'scaron': 353,
|
||
|
|
'Yuml': 376,
|
||
|
|
'fnof': 402,
|
||
|
|
'circ': 710,
|
||
|
|
'tilde': 732,
|
||
|
|
'Alpha': 913,
|
||
|
|
'Beta': 914,
|
||
|
|
'Gamma': 915,
|
||
|
|
'Delta': 916,
|
||
|
|
'Epsilon': 917,
|
||
|
|
'Zeta': 918,
|
||
|
|
'Eta': 919,
|
||
|
|
'Theta': 920,
|
||
|
|
'Iota': 921,
|
||
|
|
'Kappa': 922,
|
||
|
|
'Lambda': 923,
|
||
|
|
'Mu': 924,
|
||
|
|
'Nu': 925,
|
||
|
|
'Xi': 926,
|
||
|
|
'Omicron': 927,
|
||
|
|
'Pi': 928,
|
||
|
|
'Rho': 929,
|
||
|
|
'Sigma': 931,
|
||
|
|
'Tau': 932,
|
||
|
|
'Upsilon': 933,
|
||
|
|
'Phi': 934,
|
||
|
|
'Chi': 935,
|
||
|
|
'Psi': 936,
|
||
|
|
'Omega': 937,
|
||
|
|
'alpha': 945,
|
||
|
|
'beta': 946,
|
||
|
|
'gamma': 947,
|
||
|
|
'delta': 948,
|
||
|
|
'epsilon': 949,
|
||
|
|
'zeta': 950,
|
||
|
|
'eta': 951,
|
||
|
|
'theta': 952,
|
||
|
|
'iota': 953,
|
||
|
|
'kappa': 954,
|
||
|
|
'lambda': 955,
|
||
|
|
'mu': 956,
|
||
|
|
'nu': 957,
|
||
|
|
'xi': 958,
|
||
|
|
'omicron': 959,
|
||
|
|
'pi': 960,
|
||
|
|
'rho': 961,
|
||
|
|
'sigmaf': 962,
|
||
|
|
'sigma': 963,
|
||
|
|
'tau': 964,
|
||
|
|
'upsilon': 965,
|
||
|
|
'phi': 966,
|
||
|
|
'chi': 967,
|
||
|
|
'psi': 968,
|
||
|
|
'omega': 969,
|
||
|
|
'thetasym': 977,
|
||
|
|
'upsih': 978,
|
||
|
|
'piv': 982,
|
||
|
|
'ensp': 8194,
|
||
|
|
'emsp': 8195,
|
||
|
|
'thinsp': 8201,
|
||
|
|
'zwnj': 8204,
|
||
|
|
'zwj': 8205,
|
||
|
|
'lrm': 8206,
|
||
|
|
'rlm': 8207,
|
||
|
|
'ndash': 8211,
|
||
|
|
'mdash': 8212,
|
||
|
|
'lsquo': 8216,
|
||
|
|
'rsquo': 8217,
|
||
|
|
'sbquo': 8218,
|
||
|
|
'ldquo': 8220,
|
||
|
|
'rdquo': 8221,
|
||
|
|
'bdquo': 8222,
|
||
|
|
'dagger': 8224,
|
||
|
|
'Dagger': 8225,
|
||
|
|
'bull': 8226,
|
||
|
|
'hellip': 8230,
|
||
|
|
'permil': 8240,
|
||
|
|
'prime': 8242,
|
||
|
|
'Prime': 8243,
|
||
|
|
'lsaquo': 8249,
|
||
|
|
'rsaquo': 8250,
|
||
|
|
'oline': 8254,
|
||
|
|
'frasl': 8260,
|
||
|
|
'euro': 8364,
|
||
|
|
'image': 8465,
|
||
|
|
'weierp': 8472,
|
||
|
|
'real': 8476,
|
||
|
|
'trade': 8482,
|
||
|
|
'alefsym': 8501,
|
||
|
|
'larr': 8592,
|
||
|
|
'uarr': 8593,
|
||
|
|
'rarr': 8594,
|
||
|
|
'darr': 8595,
|
||
|
|
'harr': 8596,
|
||
|
|
'crarr': 8629,
|
||
|
|
'lArr': 8656,
|
||
|
|
'uArr': 8657,
|
||
|
|
'rArr': 8658,
|
||
|
|
'dArr': 8659,
|
||
|
|
'hArr': 8660,
|
||
|
|
'forall': 8704,
|
||
|
|
'part': 8706,
|
||
|
|
'exist': 8707,
|
||
|
|
'empty': 8709,
|
||
|
|
'nabla': 8711,
|
||
|
|
'isin': 8712,
|
||
|
|
'notin': 8713,
|
||
|
|
'ni': 8715,
|
||
|
|
'prod': 8719,
|
||
|
|
'sum': 8721,
|
||
|
|
'minus': 8722,
|
||
|
|
'lowast': 8727,
|
||
|
|
'radic': 8730,
|
||
|
|
'prop': 8733,
|
||
|
|
'infin': 8734,
|
||
|
|
'ang': 8736,
|
||
|
|
'and': 8743,
|
||
|
|
'or': 8744,
|
||
|
|
'cap': 8745,
|
||
|
|
'cup': 8746,
|
||
|
|
'int': 8747,
|
||
|
|
'there4': 8756,
|
||
|
|
'sim': 8764,
|
||
|
|
'cong': 8773,
|
||
|
|
'asymp': 8776,
|
||
|
|
'ne': 8800,
|
||
|
|
'equiv': 8801,
|
||
|
|
'le': 8804,
|
||
|
|
'ge': 8805,
|
||
|
|
'sub': 8834,
|
||
|
|
'sup': 8835,
|
||
|
|
'nsub': 8836,
|
||
|
|
'sube': 8838,
|
||
|
|
'supe': 8839,
|
||
|
|
'oplus': 8853,
|
||
|
|
'otimes': 8855,
|
||
|
|
'perp': 8869,
|
||
|
|
'sdot': 8901,
|
||
|
|
'lceil': 8968,
|
||
|
|
'rceil': 8969,
|
||
|
|
'lfloor': 8970,
|
||
|
|
'rfloor': 8971,
|
||
|
|
'lang': 9001,
|
||
|
|
'rang': 9002,
|
||
|
|
'loz': 9674,
|
||
|
|
'spades': 9824,
|
||
|
|
'clubs': 9827,
|
||
|
|
'hearts': 9829,
|
||
|
|
'diams': 9830
|
||
|
|
}
|
||
|
|
|
||
|
|
Object.keys(sax.ENTITIES).forEach(function (key) {
|
||
|
|
var e = sax.ENTITIES[key]
|
||
|
|
var s = typeof e === 'number' ? String.fromCharCode(e) : e
|
||
|
|
sax.ENTITIES[key] = s
|
||
|
|
})
|
||
|
|
|
||
|
|
for (var s in sax.STATE) {
|
||
|
|
sax.STATE[sax.STATE[s]] = s
|
||
|
|
}
|
||
|
|
|
||
|
|
// shorthand
|
||
|
|
S = sax.STATE
|
||
|
|
|
||
|
|
function emit (parser, event, data) {
|
||
|
|
parser[event] && parser[event](data)
|
||
|
|
}
|
||
|
|
|
||
|
|
function emitNode (parser, nodeType, data) {
|
||
|
|
if (parser.textNode) closeText(parser)
|
||
|
|
emit(parser, nodeType, data)
|
||
|
|
}
|
||
|
|
|
||
|
|
function closeText (parser) {
|
||
|
|
parser.textNode = textopts(parser.opt, parser.textNode)
|
||
|
|
if (parser.textNode) emit(parser, 'ontext', parser.textNode)
|
||
|
|
parser.textNode = ''
|
||
|
|
}
|
||
|
|
|
||
|
|
function textopts (opt, text) {
|
||
|
|
if (opt.trim) text = text.trim()
|
||
|
|
if (opt.normalize) text = text.replace(/\s+/g, ' ')
|
||
|
|
return text
|
||
|
|
}
|
||
|
|
|
||
|
|
function error (parser, er) {
|
||
|
|
closeText(parser)
|
||
|
|
if (parser.trackPosition) {
|
||
|
|
er += '\nLine: ' + parser.line +
|
||
|
|
'\nColumn: ' + parser.column +
|
||
|
|
'\nChar: ' + parser.c
|
||
|
|
}
|
||
|
|
er = new Error(er)
|
||
|
|
parser.error = er
|
||
|
|
emit(parser, 'onerror', er)
|
||
|
|
return parser
|
||
|
|
}
|
||
|
|
|
||
|
|
function end (parser) {
|
||
|
|
if (parser.sawRoot && !parser.closedRoot) strictFail(parser, 'Unclosed root tag')
|
||
|
|
if ((parser.state !== S.BEGIN) &&
|
||
|
|
(parser.state !== S.BEGIN_WHITESPACE) &&
|
||
|
|
(parser.state !== S.TEXT)) {
|
||
|
|
error(parser, 'Unexpected end')
|
||
|
|
}
|
||
|
|
closeText(parser)
|
||
|
|
parser.c = ''
|
||
|
|
parser.closed = true
|
||
|
|
emit(parser, 'onend')
|
||
|
|
SAXParser.call(parser, parser.strict, parser.opt)
|
||
|
|
return parser
|
||
|
|
}
|
||
|
|
|
||
|
|
function strictFail (parser, message) {
|
||
|
|
if (typeof parser !== 'object' || !(parser instanceof SAXParser)) {
|
||
|
|
throw new Error('bad call to strictFail')
|
||
|
|
}
|
||
|
|
if (parser.strict) {
|
||
|
|
error(parser, message)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function newTag (parser) {
|
||
|
|
if (!parser.strict) parser.tagName = parser.tagName[parser.looseCase]()
|
||
|
|
var parent = parser.tags[parser.tags.length - 1] || parser
|
||
|
|
var tag = parser.tag = { name: parser.tagName, attributes: {} }
|
||
|
|
|
||
|
|
// will be overridden if tag contails an xmlns="foo" or xmlns:foo="bar"
|
||
|
|
if (parser.opt.xmlns) {
|
||
|
|
tag.ns = parent.ns
|
||
|
|
}
|
||
|
|
parser.attribList.length = 0
|
||
|
|
emitNode(parser, 'onopentagstart', tag)
|
||
|
|
}
|
||
|
|
|
||
|
|
function qname (name, attribute) {
|
||
|
|
var i = name.indexOf(':')
|
||
|
|
var qualName = i < 0 ? [ '', name ] : name.split(':')
|
||
|
|
var prefix = qualName[0]
|
||
|
|
var local = qualName[1]
|
||
|
|
|
||
|
|
// <x "xmlns"="http://foo">
|
||
|
|
if (attribute && name === 'xmlns') {
|
||
|
|
prefix = 'xmlns'
|
||
|
|
local = ''
|
||
|
|
}
|
||
|
|
|
||
|
|
return { prefix: prefix, local: local }
|
||
|
|
}
|
||
|
|
|
||
|
|
function attrib (parser) {
|
||
|
|
if (!parser.strict) {
|
||
|
|
parser.attribName = parser.attribName[parser.looseCase]()
|
||
|
|
}
|
||
|
|
|
||
|
|
if (parser.attribList.indexOf(parser.attribName) !== -1 ||
|
||
|
|
parser.tag.attributes.hasOwnProperty(parser.attribName)) {
|
||
|
|
parser.attribName = parser.attribValue = ''
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
if (parser.opt.xmlns) {
|
||
|
|
var qn = qname(parser.attribName, true)
|
||
|
|
var prefix = qn.prefix
|
||
|
|
var local = qn.local
|
||
|
|
|
||
|
|
if (prefix === 'xmlns') {
|
||
|
|
// namespace binding attribute. push the binding into scope
|
||
|
|
if (local === 'xml' && parser.attribValue !== XML_NAMESPACE) {
|
||
|
|
strictFail(parser,
|
||
|
|
'xml: prefix must be bound to ' + XML_NAMESPACE + '\n' +
|
||
|
|
'Actual: ' + parser.attribValue)
|
||
|
|
} else if (local === 'xmlns' && parser.attribValue !== XMLNS_NAMESPACE) {
|
||
|
|
strictFail(parser,
|
||
|
|
'xmlns: prefix must be bound to ' + XMLNS_NAMESPACE + '\n' +
|
||
|
|
'Actual: ' + parser.attribValue)
|
||
|
|
} else {
|
||
|
|
var tag = parser.tag
|
||
|
|
var parent = parser.tags[parser.tags.length - 1] || parser
|
||
|
|
if (tag.ns === parent.ns) {
|
||
|
|
tag.ns = Object.create(parent.ns)
|
||
|
|
}
|
||
|
|
tag.ns[local] = parser.attribValue
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// defer onattribute events until all attributes have been seen
|
||
|
|
// so any new bindings can take effect. preserve attribute order
|
||
|
|
// so deferred events can be emitted in document order
|
||
|
|
parser.attribList.push([parser.attribName, parser.attribValue])
|
||
|
|
} else {
|
||
|
|
// in non-xmlns mode, we can emit the event right away
|
||
|
|
parser.tag.attributes[parser.attribName] = parser.attribValue
|
||
|
|
emitNode(parser, 'onattribute', {
|
||
|
|
name: parser.attribName,
|
||
|
|
value: parser.attribValue
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
parser.attribName = parser.attribValue = ''
|
||
|
|
}
|
||
|
|
|
||
|
|
function openTag (parser, selfClosing) {
|
||
|
|
if (parser.opt.xmlns) {
|
||
|
|
// emit namespace binding events
|
||
|
|
var tag = parser.tag
|
||
|
|
|
||
|
|
// add namespace info to tag
|
||
|
|
var qn = qname(parser.tagName)
|
||
|
|
tag.prefix = qn.prefix
|
||
|
|
tag.local = qn.local
|
||
|
|
tag.uri = tag.ns[qn.prefix] || ''
|
||
|
|
|
||
|
|
if (tag.prefix && !tag.uri) {
|
||
|
|
strictFail(parser, 'Unbound namespace prefix: ' +
|
||
|
|
JSON.stringify(parser.tagName))
|
||
|
|
tag.uri = qn.prefix
|
||
|
|
}
|
||
|
|
|
||
|
|
var parent = parser.tags[parser.tags.length - 1] || parser
|
||
|
|
if (tag.ns && parent.ns !== tag.ns) {
|
||
|
|
Object.keys(tag.ns).forEach(function (p) {
|
||
|
|
emitNode(parser, 'onopennamespace', {
|
||
|
|
prefix: p,
|
||
|
|
uri: tag.ns[p]
|
||
|
|
})
|
||
|
|
})
|
||
|
|
}
|
||
|
|
|
||
|
|
// handle deferred onattribute events
|
||
|
|
// Note: do not apply default ns to attributes:
|
||
|
|
// http://www.w3.org/TR/REC-xml-names/#defaulting
|
||
|
|
for (var i = 0, l = parser.attribList.length; i < l; i++) {
|
||
|
|
var nv = parser.attribList[i]
|
||
|
|
var name = nv[0]
|
||
|
|
var value = nv[1]
|
||
|
|
var qualName = qname(name, true)
|
||
|
|
var prefix = qualName.prefix
|
||
|
|
var local = qualName.local
|
||
|
|
var uri = prefix === '' ? '' : (tag.ns[prefix] || '')
|
||
|
|
var a = {
|
||
|
|
name: name,
|
||
|
|
value: value,
|
||
|
|
prefix: prefix,
|
||
|
|
local: local,
|
||
|
|
uri: uri
|
||
|
|
}
|
||
|
|
|
||
|
|
// if there's any attributes with an undefined namespace,
|
||
|
|
// then fail on them now.
|
||
|
|
if (prefix && prefix !== 'xmlns' && !uri) {
|
||
|
|
strictFail(parser, 'Unbound namespace prefix: ' +
|
||
|
|
JSON.stringify(prefix))
|
||
|
|
a.uri = prefix
|
||
|
|
}
|
||
|
|
parser.tag.attributes[name] = a
|
||
|
|
emitNode(parser, 'onattribute', a)
|
||
|
|
}
|
||
|
|
parser.attribList.length = 0
|
||
|
|
}
|
||
|
|
|
||
|
|
parser.tag.isSelfClosing = !!selfClosing
|
||
|
|
|
||
|
|
// process the tag
|
||
|
|
parser.sawRoot = true
|
||
|
|
parser.tags.push(parser.tag)
|
||
|
|
emitNode(parser, 'onopentag', parser.tag)
|
||
|
|
if (!selfClosing) {
|
||
|
|
// special case for <script> in non-strict mode.
|
||
|
|
if (!parser.noscript && parser.tagName.toLowerCase() === 'script') {
|
||
|
|
parser.state = S.SCRIPT
|
||
|
|
} else {
|
||
|
|
parser.state = S.TEXT
|
||
|
|
}
|
||
|
|
parser.tag = null
|
||
|
|
parser.tagName = ''
|
||
|
|
}
|
||
|
|
parser.attribName = parser.attribValue = ''
|
||
|
|
parser.attribList.length = 0
|
||
|
|
}
|
||
|
|
|
||
|
|
function closeTag (parser) {
|
||
|
|
if (!parser.tagName) {
|
||
|
|
strictFail(parser, 'Weird empty close tag.')
|
||
|
|
parser.textNode += '</>'
|
||
|
|
parser.state = S.TEXT
|
||
|
|
return
|
||
|
|
}
|
||
|
|
|
||
|
|
if (parser.script) {
|
||
|
|
if (parser.tagName !== 'script') {
|
||
|
|
parser.script += '</' + parser.tagName + '>'
|
||
|
|
parser.tagName = ''
|
||
|
|
parser.state = S.SCRIPT
|
||
|
|
return
|
||
|
|
}
|
||
|
|
emitNode(parser, 'onscript', parser.script)
|
||
|
|
parser.script = ''
|
||
|
|
}
|
||
|
|
|
||
|
|
// first make sure that the closing tag actually exists.
|
||
|
|
// <a><b></c></b></a> will close everything, otherwise.
|
||
|
|
var t = parser.tags.length
|
||
|
|
var tagName = parser.tagName
|
||
|
|
if (!parser.strict) {
|
||
|
|
tagName = tagName[parser.looseCase]()
|
||
|
|
}
|
||
|
|
var closeTo = tagName
|
||
|
|
while (t--) {
|
||
|
|
var close = parser.tags[t]
|
||
|
|
if (close.name !== closeTo) {
|
||
|
|
// fail the first time in strict mode
|
||
|
|
strictFail(parser, 'Unexpected close tag')
|
||
|
|
} else {
|
||
|
|
break
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// didn't find it. we already failed for strict, so just abort.
|
||
|
|
if (t < 0) {
|
||
|
|
strictFail(parser, 'Unmatched closing tag: ' + parser.tagName)
|
||
|
|
parser.textNode += '</' + parser.tagName + '>'
|
||
|
|
parser.state = S.TEXT
|
||
|
|
return
|
||
|
|
}
|
||
|
|
parser.tagName = tagName
|
||
|
|
var s = parser.tags.length
|
||
|
|
while (s-- > t) {
|
||
|
|
var tag = parser.tag = parser.tags.pop()
|
||
|
|
parser.tagName = parser.tag.name
|
||
|
|
emitNode(parser, 'onclosetag', parser.tagName)
|
||
|
|
|
||
|
|
var x = {}
|
||
|
|
for (var i in tag.ns) {
|
||
|
|
x[i] = tag.ns[i]
|
||
|
|
}
|
||
|
|
|
||
|
|
var parent = parser.tags[parser.tags.length - 1] || parser
|
||
|
|
if (parser.opt.xmlns && tag.ns !== parent.ns) {
|
||
|
|
// remove namespace bindings introduced by tag
|
||
|
|
Object.keys(tag.ns).forEach(function (p) {
|
||
|
|
var n = tag.ns[p]
|
||
|
|
emitNode(parser, 'onclosenamespace', { prefix: p, uri: n })
|
||
|
|
})
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (t === 0) parser.closedRoot = true
|
||
|
|
parser.tagName = parser.attribValue = parser.attribName = ''
|
||
|
|
parser.attribList.length = 0
|
||
|
|
parser.state = S.TEXT
|
||
|
|
}
|
||
|
|
|
||
|
|
function parseEntity (parser) {
|
||
|
|
var entity = parser.entity
|
||
|
|
var entityLC = entity.toLowerCase()
|
||
|
|
var num
|
||
|
|
var numStr = ''
|
||
|
|
|
||
|
|
if (parser.ENTITIES[entity]) {
|
||
|
|
return parser.ENTITIES[entity]
|
||
|
|
}
|
||
|
|
if (parser.ENTITIES[entityLC]) {
|
||
|
|
return parser.ENTITIES[entityLC]
|
||
|
|
}
|
||
|
|
entity = entityLC
|
||
|
|
if (entity.charAt(0) === '#') {
|
||
|
|
if (entity.charAt(1) === 'x') {
|
||
|
|
entity = entity.slice(2)
|
||
|
|
num = parseInt(entity, 16)
|
||
|
|
numStr = num.toString(16)
|
||
|
|
} else {
|
||
|
|
entity = entity.slice(1)
|
||
|
|
num = parseInt(entity, 10)
|
||
|
|
numStr = num.toString(10)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
entity = entity.replace(/^0+/, '')
|
||
|
|
if (isNaN(num) || numStr.toLowerCase() !== entity) {
|
||
|
|
strictFail(parser, 'Invalid character entity')
|
||
|
|
return '&' + parser.entity + ';'
|
||
|
|
}
|
||
|
|
|
||
|
|
return String.fromCodePoint(num)
|
||
|
|
}
|
||
|
|
|
||
|
|
function beginWhiteSpace (parser, c) {
|
||
|
|
if (c === '<') {
|
||
|
|
parser.state = S.OPEN_WAKA
|
||
|
|
parser.startTagPosition = parser.position
|
||
|
|
} else if (!isWhitespace(c)) {
|
||
|
|
// have to process this as a text node.
|
||
|
|
// weird, but happens.
|
||
|
|
strictFail(parser, 'Non-whitespace before first tag.')
|
||
|
|
parser.textNode = c
|
||
|
|
parser.state = S.TEXT
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function charAt (chunk, i) {
|
||
|
|
var result = ''
|
||
|
|
if (i < chunk.length) {
|
||
|
|
result = chunk.charAt(i)
|
||
|
|
}
|
||
|
|
return result
|
||
|
|
}
|
||
|
|
|
||
|
|
function write (chunk) {
|
||
|
|
var parser = this
|
||
|
|
if (this.error) {
|
||
|
|
throw this.error
|
||
|
|
}
|
||
|
|
if (parser.closed) {
|
||
|
|
return error(parser,
|
||
|
|
'Cannot write after close. Assign an onready handler.')
|
||
|
|
}
|
||
|
|
if (chunk === null) {
|
||
|
|
return end(parser)
|
||
|
|
}
|
||
|
|
if (typeof chunk === 'object') {
|
||
|
|
chunk = chunk.toString()
|
||
|
|
}
|
||
|
|
var i = 0
|
||
|
|
var c = ''
|
||
|
|
while (true) {
|
||
|
|
c = charAt(chunk, i++)
|
||
|
|
parser.c = c
|
||
|
|
|
||
|
|
if (!c) {
|
||
|
|
break
|
||
|
|
}
|
||
|
|
|
||
|
|
if (parser.trackPosition) {
|
||
|
|
parser.position++
|
||
|
|
if (c === '\n') {
|
||
|
|
parser.line++
|
||
|
|
parser.column = 0
|
||
|
|
} else {
|
||
|
|
parser.column++
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (parser.state) {
|
||
|
|
case S.BEGIN:
|
||
|
|
parser.state = S.BEGIN_WHITESPACE
|
||
|
|
if (c === '\uFEFF') {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
beginWhiteSpace(parser, c)
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.BEGIN_WHITESPACE:
|
||
|
|
beginWhiteSpace(parser, c)
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.TEXT:
|
||
|
|
if (parser.sawRoot && !parser.closedRoot) {
|
||
|
|
var starti = i - 1
|
||
|
|
while (c && c !== '<' && c !== '&') {
|
||
|
|
c = charAt(chunk, i++)
|
||
|
|
if (c && parser.trackPosition) {
|
||
|
|
parser.position++
|
||
|
|
if (c === '\n') {
|
||
|
|
parser.line++
|
||
|
|
parser.column = 0
|
||
|
|
} else {
|
||
|
|
parser.column++
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
parser.textNode += chunk.substring(starti, i - 1)
|
||
|
|
}
|
||
|
|
if (c === '<' && !(parser.sawRoot && parser.closedRoot && !parser.strict)) {
|
||
|
|
parser.state = S.OPEN_WAKA
|
||
|
|
parser.startTagPosition = parser.position
|
||
|
|
} else {
|
||
|
|
if (!isWhitespace(c) && (!parser.sawRoot || parser.closedRoot)) {
|
||
|
|
strictFail(parser, 'Text data outside of root node.')
|
||
|
|
}
|
||
|
|
if (c === '&') {
|
||
|
|
parser.state = S.TEXT_ENTITY
|
||
|
|
} else {
|
||
|
|
parser.textNode += c
|
||
|
|
}
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.SCRIPT:
|
||
|
|
// only non-strict
|
||
|
|
if (c === '<') {
|
||
|
|
parser.state = S.SCRIPT_ENDING
|
||
|
|
} else {
|
||
|
|
parser.script += c
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.SCRIPT_ENDING:
|
||
|
|
if (c === '/') {
|
||
|
|
parser.state = S.CLOSE_TAG
|
||
|
|
} else {
|
||
|
|
parser.script += '<' + c
|
||
|
|
parser.state = S.SCRIPT
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.OPEN_WAKA:
|
||
|
|
// either a /, ?, !, or text is coming next.
|
||
|
|
if (c === '!') {
|
||
|
|
parser.state = S.SGML_DECL
|
||
|
|
parser.sgmlDecl = ''
|
||
|
|
} else if (isWhitespace(c)) {
|
||
|
|
// wait for it...
|
||
|
|
} else if (isMatch(nameStart, c)) {
|
||
|
|
parser.state = S.OPEN_TAG
|
||
|
|
parser.tagName = c
|
||
|
|
} else if (c === '/') {
|
||
|
|
parser.state = S.CLOSE_TAG
|
||
|
|
parser.tagName = ''
|
||
|
|
} else if (c === '?') {
|
||
|
|
parser.state = S.PROC_INST
|
||
|
|
parser.procInstName = parser.procInstBody = ''
|
||
|
|
} else {
|
||
|
|
strictFail(parser, 'Unencoded <')
|
||
|
|
// if there was some whitespace, then add that in.
|
||
|
|
if (parser.startTagPosition + 1 < parser.position) {
|
||
|
|
var pad = parser.position - parser.startTagPosition
|
||
|
|
c = new Array(pad).join(' ') + c
|
||
|
|
}
|
||
|
|
parser.textNode += '<' + c
|
||
|
|
parser.state = S.TEXT
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.SGML_DECL:
|
||
|
|
if ((parser.sgmlDecl + c).toUpperCase() === CDATA) {
|
||
|
|
emitNode(parser, 'onopencdata')
|
||
|
|
parser.state = S.CDATA
|
||
|
|
parser.sgmlDecl = ''
|
||
|
|
parser.cdata = ''
|
||
|
|
} else if (parser.sgmlDecl + c === '--') {
|
||
|
|
parser.state = S.COMMENT
|
||
|
|
parser.comment = ''
|
||
|
|
parser.sgmlDecl = ''
|
||
|
|
} else if ((parser.sgmlDecl + c).toUpperCase() === DOCTYPE) {
|
||
|
|
parser.state = S.DOCTYPE
|
||
|
|
if (parser.doctype || parser.sawRoot) {
|
||
|
|
strictFail(parser,
|
||
|
|
'Inappropriately located doctype declaration')
|
||
|
|
}
|
||
|
|
parser.doctype = ''
|
||
|
|
parser.sgmlDecl = ''
|
||
|
|
} else if (c === '>') {
|
||
|
|
emitNode(parser, 'onsgmldeclaration', parser.sgmlDecl)
|
||
|
|
parser.sgmlDecl = ''
|
||
|
|
parser.state = S.TEXT
|
||
|
|
} else if (isQuote(c)) {
|
||
|
|
parser.state = S.SGML_DECL_QUOTED
|
||
|
|
parser.sgmlDecl += c
|
||
|
|
} else {
|
||
|
|
parser.sgmlDecl += c
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.SGML_DECL_QUOTED:
|
||
|
|
if (c === parser.q) {
|
||
|
|
parser.state = S.SGML_DECL
|
||
|
|
parser.q = ''
|
||
|
|
}
|
||
|
|
parser.sgmlDecl += c
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.DOCTYPE:
|
||
|
|
if (c === '>') {
|
||
|
|
parser.state = S.TEXT
|
||
|
|
emitNode(parser, 'ondoctype', parser.doctype)
|
||
|
|
parser.doctype = true // just remember that we saw it.
|
||
|
|
} else {
|
||
|
|
parser.doctype += c
|
||
|
|
if (c === '[') {
|
||
|
|
parser.state = S.DOCTYPE_DTD
|
||
|
|
} else if (isQuote(c)) {
|
||
|
|
parser.state = S.DOCTYPE_QUOTED
|
||
|
|
parser.q = c
|
||
|
|
}
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.DOCTYPE_QUOTED:
|
||
|
|
parser.doctype += c
|
||
|
|
if (c === parser.q) {
|
||
|
|
parser.q = ''
|
||
|
|
parser.state = S.DOCTYPE
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.DOCTYPE_DTD:
|
||
|
|
parser.doctype += c
|
||
|
|
if (c === ']') {
|
||
|
|
parser.state = S.DOCTYPE
|
||
|
|
} else if (isQuote(c)) {
|
||
|
|
parser.state = S.DOCTYPE_DTD_QUOTED
|
||
|
|
parser.q = c
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.DOCTYPE_DTD_QUOTED:
|
||
|
|
parser.doctype += c
|
||
|
|
if (c === parser.q) {
|
||
|
|
parser.state = S.DOCTYPE_DTD
|
||
|
|
parser.q = ''
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.COMMENT:
|
||
|
|
if (c === '-') {
|
||
|
|
parser.state = S.COMMENT_ENDING
|
||
|
|
} else {
|
||
|
|
parser.comment += c
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.COMMENT_ENDING:
|
||
|
|
if (c === '-') {
|
||
|
|
parser.state = S.COMMENT_ENDED
|
||
|
|
parser.comment = textopts(parser.opt, parser.comment)
|
||
|
|
if (parser.comment) {
|
||
|
|
emitNode(parser, 'oncomment', parser.comment)
|
||
|
|
}
|
||
|
|
parser.comment = ''
|
||
|
|
} else {
|
||
|
|
parser.comment += '-' + c
|
||
|
|
parser.state = S.COMMENT
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.COMMENT_ENDED:
|
||
|
|
if (c !== '>') {
|
||
|
|
strictFail(parser, 'Malformed comment')
|
||
|
|
// allow <!-- blah -- bloo --> in non-strict mode,
|
||
|
|
// which is a comment of " blah -- bloo "
|
||
|
|
parser.comment += '--' + c
|
||
|
|
parser.state = S.COMMENT
|
||
|
|
} else {
|
||
|
|
parser.state = S.TEXT
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.CDATA:
|
||
|
|
if (c === ']') {
|
||
|
|
parser.state = S.CDATA_ENDING
|
||
|
|
} else {
|
||
|
|
parser.cdata += c
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.CDATA_ENDING:
|
||
|
|
if (c === ']') {
|
||
|
|
parser.state = S.CDATA_ENDING_2
|
||
|
|
} else {
|
||
|
|
parser.cdata += ']' + c
|
||
|
|
parser.state = S.CDATA
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.CDATA_ENDING_2:
|
||
|
|
if (c === '>') {
|
||
|
|
if (parser.cdata) {
|
||
|
|
emitNode(parser, 'oncdata', parser.cdata)
|
||
|
|
}
|
||
|
|
emitNode(parser, 'onclosecdata')
|
||
|
|
parser.cdata = ''
|
||
|
|
parser.state = S.TEXT
|
||
|
|
} else if (c === ']') {
|
||
|
|
parser.cdata += ']'
|
||
|
|
} else {
|
||
|
|
parser.cdata += ']]' + c
|
||
|
|
parser.state = S.CDATA
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.PROC_INST:
|
||
|
|
if (c === '?') {
|
||
|
|
parser.state = S.PROC_INST_ENDING
|
||
|
|
} else if (isWhitespace(c)) {
|
||
|
|
parser.state = S.PROC_INST_BODY
|
||
|
|
} else {
|
||
|
|
parser.procInstName += c
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.PROC_INST_BODY:
|
||
|
|
if (!parser.procInstBody && isWhitespace(c)) {
|
||
|
|
continue
|
||
|
|
} else if (c === '?') {
|
||
|
|
parser.state = S.PROC_INST_ENDING
|
||
|
|
} else {
|
||
|
|
parser.procInstBody += c
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.PROC_INST_ENDING:
|
||
|
|
if (c === '>') {
|
||
|
|
emitNode(parser, 'onprocessinginstruction', {
|
||
|
|
name: parser.procInstName,
|
||
|
|
body: parser.procInstBody
|
||
|
|
})
|
||
|
|
parser.procInstName = parser.procInstBody = ''
|
||
|
|
parser.state = S.TEXT
|
||
|
|
} else {
|
||
|
|
parser.procInstBody += '?' + c
|
||
|
|
parser.state = S.PROC_INST_BODY
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.OPEN_TAG:
|
||
|
|
if (isMatch(nameBody, c)) {
|
||
|
|
parser.tagName += c
|
||
|
|
} else {
|
||
|
|
newTag(parser)
|
||
|
|
if (c === '>') {
|
||
|
|
openTag(parser)
|
||
|
|
} else if (c === '/') {
|
||
|
|
parser.state = S.OPEN_TAG_SLASH
|
||
|
|
} else {
|
||
|
|
if (!isWhitespace(c)) {
|
||
|
|
strictFail(parser, 'Invalid character in tag name')
|
||
|
|
}
|
||
|
|
parser.state = S.ATTRIB
|
||
|
|
}
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.OPEN_TAG_SLASH:
|
||
|
|
if (c === '>') {
|
||
|
|
openTag(parser, true)
|
||
|
|
closeTag(parser)
|
||
|
|
} else {
|
||
|
|
strictFail(parser, 'Forward-slash in opening tag not followed by >')
|
||
|
|
parser.state = S.ATTRIB
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.ATTRIB:
|
||
|
|
// haven't read the attribute name yet.
|
||
|
|
if (isWhitespace(c)) {
|
||
|
|
continue
|
||
|
|
} else if (c === '>') {
|
||
|
|
openTag(parser)
|
||
|
|
} else if (c === '/') {
|
||
|
|
parser.state = S.OPEN_TAG_SLASH
|
||
|
|
} else if (isMatch(nameStart, c)) {
|
||
|
|
parser.attribName = c
|
||
|
|
parser.attribValue = ''
|
||
|
|
parser.state = S.ATTRIB_NAME
|
||
|
|
} else {
|
||
|
|
strictFail(parser, 'Invalid attribute name')
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.ATTRIB_NAME:
|
||
|
|
if (c === '=') {
|
||
|
|
parser.state = S.ATTRIB_VALUE
|
||
|
|
} else if (c === '>') {
|
||
|
|
strictFail(parser, 'Attribute without value')
|
||
|
|
parser.attribValue = parser.attribName
|
||
|
|
attrib(parser)
|
||
|
|
openTag(parser)
|
||
|
|
} else if (isWhitespace(c)) {
|
||
|
|
parser.state = S.ATTRIB_NAME_SAW_WHITE
|
||
|
|
} else if (isMatch(nameBody, c)) {
|
||
|
|
parser.attribName += c
|
||
|
|
} else {
|
||
|
|
strictFail(parser, 'Invalid attribute name')
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.ATTRIB_NAME_SAW_WHITE:
|
||
|
|
if (c === '=') {
|
||
|
|
parser.state = S.ATTRIB_VALUE
|
||
|
|
} else if (isWhitespace(c)) {
|
||
|
|
continue
|
||
|
|
} else {
|
||
|
|
strictFail(parser, 'Attribute without value')
|
||
|
|
parser.tag.attributes[parser.attribName] = ''
|
||
|
|
parser.attribValue = ''
|
||
|
|
emitNode(parser, 'onattribute', {
|
||
|
|
name: parser.attribName,
|
||
|
|
value: ''
|
||
|
|
})
|
||
|
|
parser.attribName = ''
|
||
|
|
if (c === '>') {
|
||
|
|
openTag(parser)
|
||
|
|
} else if (isMatch(nameStart, c)) {
|
||
|
|
parser.attribName = c
|
||
|
|
parser.state = S.ATTRIB_NAME
|
||
|
|
} else {
|
||
|
|
strictFail(parser, 'Invalid attribute name')
|
||
|
|
parser.state = S.ATTRIB
|
||
|
|
}
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.ATTRIB_VALUE:
|
||
|
|
if (isWhitespace(c)) {
|
||
|
|
continue
|
||
|
|
} else if (isQuote(c)) {
|
||
|
|
parser.q = c
|
||
|
|
parser.state = S.ATTRIB_VALUE_QUOTED
|
||
|
|
} else {
|
||
|
|
strictFail(parser, 'Unquoted attribute value')
|
||
|
|
parser.state = S.ATTRIB_VALUE_UNQUOTED
|
||
|
|
parser.attribValue = c
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.ATTRIB_VALUE_QUOTED:
|
||
|
|
if (c !== parser.q) {
|
||
|
|
if (c === '&') {
|
||
|
|
parser.state = S.ATTRIB_VALUE_ENTITY_Q
|
||
|
|
} else {
|
||
|
|
parser.attribValue += c
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
attrib(parser)
|
||
|
|
parser.q = ''
|
||
|
|
parser.state = S.ATTRIB_VALUE_CLOSED
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.ATTRIB_VALUE_CLOSED:
|
||
|
|
if (isWhitespace(c)) {
|
||
|
|
parser.state = S.ATTRIB
|
||
|
|
} else if (c === '>') {
|
||
|
|
openTag(parser)
|
||
|
|
} else if (c === '/') {
|
||
|
|
parser.state = S.OPEN_TAG_SLASH
|
||
|
|
} else if (isMatch(nameStart, c)) {
|
||
|
|
strictFail(parser, 'No whitespace between attributes')
|
||
|
|
parser.attribName = c
|
||
|
|
parser.attribValue = ''
|
||
|
|
parser.state = S.ATTRIB_NAME
|
||
|
|
} else {
|
||
|
|
strictFail(parser, 'Invalid attribute name')
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.ATTRIB_VALUE_UNQUOTED:
|
||
|
|
if (!isAttribEnd(c)) {
|
||
|
|
if (c === '&') {
|
||
|
|
parser.state = S.ATTRIB_VALUE_ENTITY_U
|
||
|
|
} else {
|
||
|
|
parser.attribValue += c
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
attrib(parser)
|
||
|
|
if (c === '>') {
|
||
|
|
openTag(parser)
|
||
|
|
} else {
|
||
|
|
parser.state = S.ATTRIB
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.CLOSE_TAG:
|
||
|
|
if (!parser.tagName) {
|
||
|
|
if (isWhitespace(c)) {
|
||
|
|
continue
|
||
|
|
} else if (notMatch(nameStart, c)) {
|
||
|
|
if (parser.script) {
|
||
|
|
parser.script += '</' + c
|
||
|
|
parser.state = S.SCRIPT
|
||
|
|
} else {
|
||
|
|
strictFail(parser, 'Invalid tagname in closing tag.')
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
parser.tagName = c
|
||
|
|
}
|
||
|
|
} else if (c === '>') {
|
||
|
|
closeTag(parser)
|
||
|
|
} else if (isMatch(nameBody, c)) {
|
||
|
|
parser.tagName += c
|
||
|
|
} else if (parser.script) {
|
||
|
|
parser.script += '</' + parser.tagName
|
||
|
|
parser.tagName = ''
|
||
|
|
parser.state = S.SCRIPT
|
||
|
|
} else {
|
||
|
|
if (!isWhitespace(c)) {
|
||
|
|
strictFail(parser, 'Invalid tagname in closing tag')
|
||
|
|
}
|
||
|
|
parser.state = S.CLOSE_TAG_SAW_WHITE
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.CLOSE_TAG_SAW_WHITE:
|
||
|
|
if (isWhitespace(c)) {
|
||
|
|
continue
|
||
|
|
}
|
||
|
|
if (c === '>') {
|
||
|
|
closeTag(parser)
|
||
|
|
} else {
|
||
|
|
strictFail(parser, 'Invalid characters in closing tag')
|
||
|
|
}
|
||
|
|
continue
|
||
|
|
|
||
|
|
case S.TEXT_ENTITY:
|
||
|
|
case S.ATTRIB_VALUE_ENTITY_Q:
|
||
|
|
case S.ATTRIB_VALUE_ENTITY_U:
|
||
|
|
var returnState
|
||
|
|
var buffer
|
||
|
|
switch (parser.state) {
|
||
|
|
case S.TEXT_ENTITY:
|
||
|
|
returnState = S.TEXT
|
||
|
|
buffer = 'textNode'
|
||
|
|
break
|
||
|
|
|
||
|
|
case S.ATTRIB_VALUE_ENTITY_Q:
|
||
|
|
returnState = S.ATTRIB_VALUE_QUOTED
|
||
|
|
buffer = 'attribValue'
|
||
|
|
break
|
||
|
|
|
||
|
|
case S.ATTRIB_VALUE_ENTITY_U:
|
||
|
|
returnState = S.ATTRIB_VALUE_UNQUOTED
|
||
|
|
buffer = 'attribValue'
|
||
|
|
break
|
||
|
|
}
|
||
|
|
|
||
|
|
if (c === ';') {
|
||
|
|
parser[buffer] += parseEntity(parser)
|
||
|
|
parser.entity = ''
|
||
|
|
parser.state = returnState
|
||
|
|
} else if (isMatch(parser.entity.length ? entityBody : entityStart, c)) {
|
||
|
|
parser.entity += c
|
||
|
|
} else {
|
||
|
|
strictFail(parser, 'Invalid character in entity name')
|
||
|
|
parser[buffer] += '&' + parser.entity + c
|
||
|
|
parser.entity = ''
|
||
|
|
parser.state = returnState
|
||
|
|
}
|
||
|
|
|
||
|
|
continue
|
||
|
|
|
||
|
|
default:
|
||
|
|
throw new Error(parser, 'Unknown state: ' + parser.state)
|
||
|
|
}
|
||
|
|
} // while
|
||
|
|
|
||
|
|
if (parser.position >= parser.bufferCheckPosition) {
|
||
|
|
checkBufferLength(parser)
|
||
|
|
}
|
||
|
|
return parser
|
||
|
|
}
|
||
|
|
|
||
|
|
/*! http://mths.be/fromcodepoint v0.1.0 by @mathias */
|
||
|
|
/* istanbul ignore next */
|
||
|
|
if (!String.fromCodePoint) {
|
||
|
|
(function () {
|
||
|
|
var stringFromCharCode = String.fromCharCode
|
||
|
|
var floor = Math.floor
|
||
|
|
var fromCodePoint = function () {
|
||
|
|
var MAX_SIZE = 0x4000
|
||
|
|
var codeUnits = []
|
||
|
|
var highSurrogate
|
||
|
|
var lowSurrogate
|
||
|
|
var index = -1
|
||
|
|
var length = arguments.length
|
||
|
|
if (!length) {
|
||
|
|
return ''
|
||
|
|
}
|
||
|
|
var result = ''
|
||
|
|
while (++index < length) {
|
||
|
|
var codePoint = Number(arguments[index])
|
||
|
|
if (
|
||
|
|
!isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity`
|
||
|
|
codePoint < 0 || // not a valid Unicode code point
|
||
|
|
codePoint > 0x10FFFF || // not a valid Unicode code point
|
||
|
|
floor(codePoint) !== codePoint // not an integer
|
||
|
|
) {
|
||
|
|
throw RangeError('Invalid code point: ' + codePoint)
|
||
|
|
}
|
||
|
|
if (codePoint <= 0xFFFF) { // BMP code point
|
||
|
|
codeUnits.push(codePoint)
|
||
|
|
} else { // Astral code point; split in surrogate halves
|
||
|
|
// http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae
|
||
|
|
codePoint -= 0x10000
|
||
|
|
highSurrogate = (codePoint >> 10) + 0xD800
|
||
|
|
lowSurrogate = (codePoint % 0x400) + 0xDC00
|
||
|
|
codeUnits.push(highSurrogate, lowSurrogate)
|
||
|
|
}
|
||
|
|
if (index + 1 === length || codeUnits.length > MAX_SIZE) {
|
||
|
|
result += stringFromCharCode.apply(null, codeUnits)
|
||
|
|
codeUnits.length = 0
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return result
|
||
|
|
}
|
||
|
|
/* istanbul ignore next */
|
||
|
|
if (Object.defineProperty) {
|
||
|
|
Object.defineProperty(String, 'fromCodePoint', {
|
||
|
|
value: fromCodePoint,
|
||
|
|
configurable: true,
|
||
|
|
writable: true
|
||
|
|
})
|
||
|
|
} else {
|
||
|
|
String.fromCodePoint = fromCodePoint
|
||
|
|
}
|
||
|
|
}())
|
||
|
|
}
|
||
|
|
})(typeof exports === 'undefined' ? this.sax = {} : exports)
|