Do you know any ruby lexers I could use in an application?

Question

I would need lexers for as many programming languages I could get, and I would need them to be written in ruby. Do you know any?

Answer 1

Would RACC be useful to you?

Answer 2

This might not fit you, but can I suggest you to take a look at Pygments for Python? I understand it might fall outside the scope of your question but this tool has support for a ton of languages and it provides a command-line tool so you can call it from Ruby.

Albino is a small Ruby wrapper for using Pygments from Ruby: http://gist.github.com/82824