Lexical Analyzer/Parser

Question

I need to create a lexical analyzer for a class that I am in.  It needs to read in a program and see if it matches a simple grammer.  Is there some easy way to do this with regular expressions, or does someone have some code to help me get started.  I'm kinda stumped right now as I have never done anything like this before.

Thanks

Answer 1

The following link has a lot of informationon lexical analyzers and Regular expressions

http://www.cybercom.net/~zbrad/DotNet/Lex/Lex.htm

Answer 2

My open-source C# expression parser LazyParser.NET uses a tokenizer based on regular expression. It's a great example on how to use regular expression for parsing simple grammer.

Source code can be downloaded on CodePlex: http://www.codeplex.com/LazyParser