mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-09-27 20:26:46 +00:00
106 lines
3.2 KiB
JavaScript
106 lines
3.2 KiB
JavaScript
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/**
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*
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* Simple parser class. Should have lots of options for observing parse stages (or, use events).
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*
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* @author Gabriel Wicke <gwicke@wikimedia.org>
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* @author Neil Kandalgaonkar <neilk@wikimedia.org>
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*/
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var fs = require('fs'),
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path = require('path'),
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PegTokenizer = require('./mediawiki.tokenizer.peg.js').PegTokenizer,
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TokenTransformDispatcher = require('./mediawiki.TokenTransformDispatcher.js').TokenTransformDispatcher,
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DOMPostProcessor = require('./mediawiki.DOMPostProcessor.js').DOMPostProcessor,
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DOMConverter = require('./mediawiki.DOMConverter.js').DOMConverter,
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QuoteTransformer = require('./ext.core.QuoteTransformer.js').QuoteTransformer,
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Cite = require('./ext.Cite.js').Cite,
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MWRefTagHook = require('./ext.cite.taghook.ref.js').MWRefTagHook,
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FauxHTML5 = require('./mediawiki.HTML5TreeBuilder.node.js').FauxHTML5;
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function ParseThingy( config ) {
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if ( !config ) {
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config = {};
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}
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if ( !config.peg ) {
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// n.b. __dirname is relative to the module.
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var pegSrcPath = path.join( __dirname, 'pegTokenizer.pegjs.txt' );
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config.peg = fs.readFileSync( pegSrcPath, 'utf8' );
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}
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// XXX parser environment? Will be needed for fetching templates, etc.
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this.wikiTokenizer = new PegTokenizer(config.parserEnv, config.peg);
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this.postProcessor = new DOMPostProcessor();
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this.DOMConverter = new DOMConverter();
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var pthingy = this;
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// Set up the TokenTransformDispatcher with a callback for the remaining
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// processing.
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this.tokenDispatcher = new TokenTransformDispatcher ( function ( tokens ) {
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//console.log("TOKENS: " + JSON.stringify(tokens, null, 2));
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// Create a new tree builder, which also creates a new document.
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var treeBuilder = new FauxHTML5.TreeBuilder();
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// Build a DOM tree from tokens using the HTML tree builder/parser.
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pthingy.buildTree( tokens, treeBuilder );
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// Perform post-processing on DOM.
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pthingy.postProcessor.doPostProcess(treeBuilder.document);
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// And serialize the result.
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// XXX fix this -- make it a method
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pthingy.out = treeBuilder.document.body.innerHTML;
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// XXX fix this -- make it a method
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pthingy.getWikiDom = function() {
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return JSON.stringify(
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pthingy.DOMConverter.HTMLtoWiki( treeBuilder.document.body ),
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null,
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2
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) + "\n";
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};
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// XXX pull HTML5 htmlparser fixups into this module? Or leave in tests?
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});
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// Add token transformations..
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var qt = new QuoteTransformer();
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qt.register(this.tokenDispatcher);
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var citeExtension = new Cite();
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citeExtension.register(this.tokenDispatcher);
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}
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ParseThingy.prototype = {
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buildTree: function ( tokens, treeBuilder ) {
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// push a body element, just to be sure to have one
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treeBuilder.processToken({type: 'TAG', name: 'body'});
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// Process all tokens
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for (var i = 0, length = tokens.length; i < length; i++) {
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treeBuilder.processToken(tokens[i]);
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}
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// FIXME HACK: For some reason the end token is not processed sometimes,
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// which normally fixes the body reference up.
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treeBuilder.document.body = treeBuilder.parser
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.document.getElementsByTagName('body')[0];
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}
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};
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if (typeof module == "object") {
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module.exports.ParseThingy = ParseThingy;
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}
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