Is there a good way to parse C # 3.0 code?

Question

I was looking for a free (as in "free beer") library that can parse C # 3.0 code (in fact, C # 2.0 with lambdas would do that) and return some kind of AST / code DOM code for a personal project, however most the alternatives I've seen so far are inadequate:

• Microsoft.CSharp.CSharpCodeProvider.Parse throws a NotImpementedException ;
• Visual Studio "exposed" code parser sucks ;
• The methods of the Mono C # compiler are impervious (and not documented);
• The Parser C # project in CodePlex parses only C # 2.0 code, and so we forget lambdas;
• Another project at SourceForge claims to parse C # on CodeDOM , but it's 2,000 days old , so I think it's not C # 3.0;
• ... and it continues for several pages of Google results.

So ... is there a free, working C # 3.0 analyzer that can be connected to another project?

Answer 1

I got lucky with NRefactory written in C # and used for the SharpDevelop development environment written for Mono:

http://wiki.sharpdevelop.net/NRefactory.ashx

Answer 2

Take a look at http://antlrcsharp.codeplex.com/ This is the C # 4 grammar for the Antlr parser generator.