Objective-C 2.0 grammar with preprocessor support.

• Preprocessor Lexing (ObjectiveCPreprocessorLexer.g4).
• Preprocessor Parsing (ObjectiveCPreprocessorLexer.g4).
• Removing directives from code (ObjectiveCPreprocessor.java).
• Lexing (ObjectiveCLexer.g4).
• Parsing (ObjectiveCParser.g4).

ObjectiveCPreprocessor calculates preprocessor directive values and replaces not compilied code with spaces. These spaces are using for proper error line and column detection during the ordinary Objective-C code parsing.

More than 95% correctly parsed *.m files from these projects:

1. AFNetworking: 2a53b2c3f49275352677dfd46a35b0287ae01458
2. realm-cocoa: 1b3da1a23a17973c5c3030b293e9d9eea2e8a306
3. iOS-Source-Code-Analyze: 89816b258b5b80824694f4041e04c4402dc1d6ac
4. SDWebImage: c012fc9bb2e5b1775a8a4a847938352187496a05
5. MJRefresh: 62cb56c97432e5c5bc1f0b5de0f2b2f1c5c929dd
6. SmarterStreaming 87c6ceb31bf0fb6b4c31187017c6007dfcdad83c
7. ReactiveCocoa: c3487f9427f0c7bbf332b4f8501eb5185119cb00
8. GSKStretchyHeaderView: d24efa77b327ef7c25b6975fe705da99e12131da
9. JSQMessagesViewController: f3ae3b290071ac0be7221c1b6550b2db93288b9d
10. SocketRocket: 5ce5f5d1d8c828e66f0d892146a291fbf3d34199
11. MBProgressHUD: 3de6e1398f0ab7e5a4375549f946870c844cdba2
12. DZNEmptyDataSet: 441a84146f8c615eabede3801c920d774f9289d6
13. AsyncDisplayKit: f72f39b4453883632ba33d2d3fd922ddb21d9dd9
14. UITableView-FDTemplateLayoutCell: e3ee86ce419d18d3ff735056f1474f2863e43003
15. SDAutoLayout: df61d42c9be5fa6b5edd9086de2b8d64e668d003
16. Chameleon: 3f87b407bb84ad5e23a0ee8a2ef4023ebb62b00a
17. TomatoRead: 4389af9767ac5169e151f7fec4bdfc015e098b9f
18. iCarousel: 7739680a08028d29250c540b91b896dac23a92cd
19. SVProgressHUD: 6ca5946638ed5bbf8ae36e3c3191901f76bf173b
20. fmdb: 345b1936c553be01f749eebb14bf4b42c5e4158f

ObjectiveC grammars are licensed under MIT.