Update README.md

README.md

@@ -1,4 +1,44 @@
 CppNet
 ======
 
-Quick and dirty port of jcpp to .NET, with features to support Clang preprocessing
+Quick and dirty port of JCPP (https://github.com/shevek/jcpp) to C#, with features to support Clang preprocessing.
+
+Features added from jcpp:
+* __has_include, __has_include_next, __has_feature
+* variadic macros
+* #import
+
+
+```C#
+var pp = new Preprocessor();
+pp.addFeature(Feature.DIGRAPHS);
+pp.addFeature(Feature.TRIGRAPHS);
+pp.addFeature(Feature.OBJCSYNTAX);
+pp.addWarning(Warning.IMPORT);
+pp.addFeature(Feature.INCLUDENEXT);
+pp.setListener(new PreprocessorListener());
+
+pp.getSystemIncludePath().Add(@"C:\XcodeDefault.xctoolchain\usr\include");
+pp.getSystemIncludePath().Add(@"C:\XcodeDefault.xctoolchain\usr\lib\clang\6.0\include");
+pp.getFrameworksPath().Add(@"C:\iPhoneOS8.0.sdk\System\Library\Frameworks");
+pp.getSystemIncludePath().Add(@"C:\iPhoneOS8.0.sdk\usr\include");
+
+pp.addMacro("__AARCH64_SIMD__");
+pp.addMacro("__ARM64_ARCH_8__");
+pp.addMacro("__ARM_NEON__");
+pp.addMacro("__LITTLE_ENDIAN__");
+pp.addMacro("__REGISTER_PREFIX__", "");
+pp.addMacro("__arm64", "1");
+pp.addMacro("__arm64__", "1");
+pp.addMacro("__APPLE_CC__", "6000");
+pp.addMacro("__APPLE__");
+pp.addMacro("__GNUC__", "4");
+pp.addMacro("OBJC_NEW_PROPERTIES");
+pp.addMacro("__STDC_HOSTED__", "1");
+pp.addMacro("__MACH__");
+Version version = new Version("8.0.0.0");
+pp.addMacro("__ENVIRONMENT_IPHONE_OS_VERSION_MIN_REQUIRED__", string.Format("{0:0}{1:00}{2:00}", version.Major, version.Minor, version.Revision));
+pp.addMacro("__STATIC__");
+
+pp.addInput(new FileLexerSource("test.m"));
+```