module.exports.init = function(worker) { var fs = require('fs'), path = require('path'); // Fetch up some of our wacky parser bits... //var basePath = '../modules/'; var basePath = path.join(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]; }) } // For now most modules only need this for $.extend and $.each :) global.$ = require('jquery'); // Local CommonJS-friendly libs global.PEG = _require('lib.pegjs.js'); // Our code... _import('ext.parserPlayground.serializer.js', ['MWTreeSerializer']); _import('ext.parserPlayground.pegParser.js', ['PegParser']); // Preload the grammar file... PegParser.src = fs.readFileSync(path.join(basePath, 'pegParser.pegjs.txt'), 'utf8'); var parser = new PegParser(), serializer = new MWTreeSerializer(); function sendResult(expected, received, msg) { worker.postMessage({ expected: expected, received: received, msg: msg }); } roundTripTest = function(text, msg) { parser.parseToTree(text, function(tree, err) { if (err) throw new Error(err); serializer.treeToSource(tree, function(newText, err) { if (err) throw new Error(err); sendResult(text, newText, msg); }) }) } worker.onmessage = function(msg) { var data = msg.data; if (data.action == 'roundTrip') { roundTripTest(data.text, data.msg); } else { throw new Error('unknown action ' + data.action); } } };