| 'use strict'; |
| |
| var ParsingUnit = module.exports = function (parser) { |
| this.parser = parser; |
| this.suspended = false; |
| this.parsingLoopLock = false; |
| this.callback = null; |
| }; |
| |
| ParsingUnit.prototype._stateGuard = function (suspend) { |
| if (this.suspended && suspend) |
| throw new Error('parse5: Parser was already suspended. Please, check your control flow logic.'); |
| |
| else if (!this.suspended && !suspend) |
| throw new Error('parse5: Parser was already resumed. Please, check your control flow logic.'); |
| |
| return suspend; |
| }; |
| |
| ParsingUnit.prototype.suspend = function () { |
| this.suspended = this._stateGuard(true); |
| |
| return this; |
| }; |
| |
| ParsingUnit.prototype.resume = function () { |
| this.suspended = this._stateGuard(false); |
| |
| //NOTE: don't enter parsing loop if it is locked. Without this lock _runParsingLoop() may be called |
| //while parsing loop is still running. E.g. when suspend() and resume() called synchronously. |
| if (!this.parsingLoopLock) |
| this.parser._runParsingLoop(); |
| |
| return this; |
| }; |
| |
| ParsingUnit.prototype.documentWrite = function (html) { |
| this.parser.tokenizer.preprocessor.write(html); |
| |
| return this; |
| }; |
| |
| ParsingUnit.prototype.handleScripts = function (scriptHandler) { |
| this.parser.scriptHandler = scriptHandler; |
| |
| return this; |
| }; |
| |
| ParsingUnit.prototype.done = function (callback) { |
| this.callback = callback; |
| |
| return this; |
| }; |