115 lines
2.3 KiB
JavaScript
115 lines
2.3 KiB
JavaScript
'use strict'
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const util = require('util')
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const expat = require('bindings')('node_expat')
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const Stream = require('stream').Stream
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const Parser = function (encoding) {
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this.encoding = encoding
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this._getNewParser()
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this.parser.emit = this.emit.bind(this)
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// Stream API
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this.writable = true
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this.readable = true
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}
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util.inherits(Parser, Stream)
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Parser.prototype._getNewParser = function () {
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this.parser = new expat.Parser(this.encoding)
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}
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Parser.prototype.parse = function (buf, isFinal) {
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return this.parser.parse(buf, isFinal)
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}
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Parser.prototype.setEncoding = function (encoding) {
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this.encoding = encoding
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return this.parser.setEncoding(this.encoding)
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}
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Parser.prototype.setUnknownEncoding = function (map, convert) {
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return this.parser.setUnknownEncoding(map, convert)
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}
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Parser.prototype.getError = function () {
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return this.parser.getError()
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}
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Parser.prototype.stop = function () {
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return this.parser.stop()
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}
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Parser.prototype.pause = function () {
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return this.stop()
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}
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Parser.prototype.resume = function () {
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return this.parser.resume()
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}
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Parser.prototype.destroy = function () {
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this.parser.stop()
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this.end()
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}
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Parser.prototype.destroySoon = function () {
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this.destroy()
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}
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Parser.prototype.write = function (data) {
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let error, result
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try {
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result = this.parse(data)
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if (!result) {
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error = this.getError()
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}
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} catch (e) {
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error = e
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}
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if (error) {
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this.emit('error', error)
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this.emit('close')
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}
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return result
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}
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Parser.prototype.end = function (data) {
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let error, result
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try {
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result = this.parse(data || '', true)
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if (!result) {
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error = this.getError()
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}
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} catch (e) {
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error = e
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}
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if (!error) {
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this.emit('end')
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} else {
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this.emit('error', error)
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}
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this.emit('close')
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}
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Parser.prototype.reset = function () {
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return this.parser.reset()
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}
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Parser.prototype.getCurrentLineNumber = function () {
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return this.parser.getCurrentLineNumber()
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}
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Parser.prototype.getCurrentColumnNumber = function () {
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return this.parser.getCurrentColumnNumber()
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}
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Parser.prototype.getCurrentByteIndex = function () {
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return this.parser.getCurrentByteIndex()
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}
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exports.Parser = Parser
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exports.createParser = function (cb) {
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const parser = new Parser()
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if (cb) {
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parser.on('startElement', cb)
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}
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return parser
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}
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