Lex/Yacc for C#?

Question

Actually, maybe not full-blown Lex/Yacc. I\'m implementing a command-interpreter front-end to administer a webapp. I\'m looking for something that\'ll take a grammar definit

Answer 1

I would suggest csflex - C# port of flex - most famous unix scanner generator.

Answer 2

Also look at Antlr, which has C# support.

Answer 3

Just for the record, implementation of lexer and LALR parser in C# for C#:

http://code.google.com/p/naive-language-tools/

It should be similar in use to Lex/Yacc, however those tools (NLT) are not generators! Thus, forget about speed.

Answer 4

I believe that lex/yacc are in one of the SDKs already (i.e. RTM). Either Windows or .NET Framework SDK.

Answer 5

Gardens Point Parser Generator here provides Yacc/Bison functionality for C#. It can be donwloaded here. A usefull example using GPPG is provided here

Answer 6

I've done a couple of small projects with GPLEX/GPPG, which are pretty straightforward reimplementations of LEX/YACC in C#. I've not used any of the other tools above, so I can't really compare them, but these worked fine.

GPPG can be found here and GPLEX here.

That being said, I agree, a full LEX/YACC solution probably is overkill for your problem. I would suggest generating a set of bindings using IronPython: it interfaces easily with .NET code, non-programmers seem to find the basic syntax fairly usable, and it gives you a lot of flexibility/power if you choose to use it.