# node-xcode > parser/toolkit for xcodeproj project files Allows you to edit xcodeproject files and write them back out. ## Example // API is a bit wonky right now var xcode = require('xcode'), fs = require('fs'), projectPath = 'myproject.xcodeproj/project.pbxproj', myProj = xcode.project(projectPath); // parsing is async, in a different process myProj.parse(function (err) { myProj.addHeaderFile('foo.h'); myProj.addSourceFile('foo.m'); myProj.addFramework('FooKit.framework'); fs.writeFileSync(projectPath, myProj.writeSync()); console.log('new project written'); }); ## Working on the parser If there's a problem parsing, you will want to edit the grammar under `lib/parser/pbxproj.pegjs`. You can test it online with the PEGjs online thingy at http://pegjs.majda.cz/online - I have had some mixed results though. Tests under the `test/parser` directory will compile the parser from the grammar. Other tests will use the prebuilt parser (`lib/parser/pbxproj.js`). To rebuild the parser js file after editing the grammar, run: ./node_modules/.bin/pegjs lib/parser/pbxproj.pegjs (easier if `./node_modules/.bin` is in your path) ## License Apache V2