/** * Initial parser tests runner for experimental JS parser * * This pulls all the parserTests.txt items and runs them through the JS * parser and JS HTML renderer. Currently no comparison is done on output, * as a direct string comparison won't be very encouraging. :) * * Needs smarter compare, as well as search-y helpers. * * 2011-07-20 */ (function() { "use strict"; var fs = require('fs'), path = require('path'), jsDiff = require('diff'), HTML5 = require('html5').HTML5; // @fixme wrap more or this setup in a common module // Fetch up some of our wacky parser bits... var basePath = path.join(path.dirname(path.dirname(process.cwd())), 'modules'); function _require(filename) { return require(path.join(basePath, filename)); } function _import(filename, symbols) { var module = _require(filename); symbols.forEach(function(symbol) { global[symbol] = module[symbol]; }); } // needed for html5 parser adapter //var events = require('events'); // For now most modules only need this for $.extend and $.each :) global.$ = require('jquery'); // hack for renderer global.document = $('

')[0].ownerDocument; var pj = path.join; // Local CommonJS-friendly libs global.PEG = _require(pj('parser', 'lib.pegjs.js')); // Our code... _import(pj('parser', 'mediawiki.parser.peg.js'), ['PegParser']); _import(pj('parser', 'mediawiki.parser.environment.js'), ['MWParserEnvironment']); _import(pj('parser', 'ext.cite.taghook.ref.js'), ['MWRefTagHook']); _require(pj('parser', 'mediawiki.html5TokenEmitter.js')); // WikiDom and serializers _require(pj('es', 'es.js')); _require(pj('es', 'es.Html.js')); _require(pj('es', 'serializers', 'es.AnnotationSerializer.js')); _require(pj('es', 'serializers', 'es.HtmlSerializer.js')); _require(pj('es', 'serializers', 'es.WikitextSerializer.js')); _require(pj('es', 'serializers', 'es.JsonSerializer.js')); // Preload the grammar file... PegParser.src = fs.readFileSync(path.join(basePath, 'parser', 'pegParser.pegjs.txt'), 'utf8'); var parser = new PegParser(); var testFileName = '../../../../phase3/tests/parser/parserTests.txt'; // default if (process.argv.length > 2) { // hack :D testFileName = process.argv[2]; console.log(testFileName); } try { var testParser = PEG.buildParser(fs.readFileSync('parserTests.pegjs', 'utf8')); } catch (e) { console.log(e); } var testFile = fs.readFileSync(testFileName, 'utf8'); try { var cases = testParser.parse(testFile); } catch (e) { console.log(e); } var articles = {}; function normalizeTitle(name) { if (typeof name !== 'string') { throw new Error('nooooooooo not a string'); } name = name.replace(/[\s_]+/g, '_'); name = name.substr(0, 1).toUpperCase() + name.substr(1); if (name === '') { throw new Error('Invalid/empty title'); } return name; } function fetchArticle(name) { var norm = normalizeTitle(name); if (norm in articles) { return articles[norm]; } } function processArticle(item) { var norm = normalizeTitle(item.title); articles[norm] = item.text; } function nodeToHtml(node) { return $('

').append(node).html(); } // Normalize the expected parser output by parsing it using a HTML5 parser and // re-serializing it to HTML. Ideally, the parser would normalize inter-tag // whitespace for us. For now, we fake that by simply stripping all newlines. function normalizeHTML(source) { var parser = new HTML5.Parser(); // TODO: Do not strip newlines in pre and nowiki blocks! source = source.replace(/\n/g, ''); parser.parse('' + source + ''); return parser.document .getElementsByTagName('body')[0] .innerHTML; } // Specialized normalization of the parser output, mostly to ignore a few // known-ok differences. function normalizeOut ( out ) { // TODO: Do not strip newlines in pre and nowiki blocks! return out.replace(/\n| data-sourcePos="[^>]+"|\n?/g, ''); } function formatHTML ( source ) { // Quick hack to insert newlines before block level start tags! return source.replace(/(.)<((dd|dt|li|p|table|dl|ol|ul)[^>]*)>/g, '$1\n<$2>'); } function processTest(item) { var tokenizer = new FauxHTML5.Tokenizer(); // ordinary HTML5 parser for DOM comparison if (!('title' in item)) { console.log(item); throw new Error('Missing title from test case.'); } if (!('input' in item)) { console.log(item); throw new Error('Missing input from test case ' + item.title); } if (!('result' in item)) { console.log(item); throw new Error('Missing input from test case ' + item.title); } function printTitle() { console.log('====================================================='); console.log(item.title); console.log(item.comments.join('\n')); console.log("INPUT:"); console.log(item.input + "\n"); } parser.parseToTree(item.input + "\n", function(tree, err) { if (err) { printTitle(); console.log('PARSE FAIL', err); } else { var environment = new MWParserEnvironment({ tagHooks: { 'ref': MWRefTagHook, 'references': MWReferencesTagHook } }); //var res = es.HtmlSerializer.stringify(tree,environment); processTokens(tree, tokenizer); var out = tokenizer.parser.document .getElementsByTagName('body')[0] .innerHTML; if (normalizeOut(out) !== normalizeHTML( item.result ) || err ) { printTitle(); if (err) { console.log('RENDER FAIL', err); } else { console.log('RAW EXPECTED:'); console.log(item.result + "\n"); console.log('RAW RENDERED:'); console.log(formatHTML(out) + "\n"); var a = formatHTML(normalizeHTML( item.result )); console.log('NORMALIZED EXPECTED:'); console.log(a + "\n"); var b = formatHTML(normalizeOut( out )); console.log('NORMALIZED RENDERED:') console.log(formatHTML(normalizeOut(out)) + "\n"); var patch = jsDiff.createPatch('wikitext.txt', a, b, 'before', 'after'); console.log('DIFF:'); console.log(patch.replace(/^[^\n]*\n[^\n]*\n[^\n]*\n[^\n]*\n/, '')); } } } }); } function processTokens ( tokens, tokenizer ) { // push a body element, just to be sure to have one tokenizer.processToken({type: 'TAG', name: 'body'}); // Process all tokens for (var i = 0, length = tokens.length; i < length; i++) { tokenizer.processToken(tokens[i]); } // And signal the end tokenizer.processToken({type: 'END'}); } var comments = []; cases.forEach(function(item) { if (typeof item == 'object') { switch(item.type) { case 'article': //processArticle(item); break; case 'test': // Add comments to following test. item.comments = comments; comments = []; processTest(item); break; case 'comment': comments.push(item.comment); break; default: break; } } }); })();