Building a lexer in C

Question

I want to build a lexer in C and I am following the dragon book, I can understand the state transitions but how to implement them?

Is there a better book?

The fact that I have to parse a string through a number of states so that I can tell whether the string is acceptable or not!

Answer 1

G'day,

Assuming you mean The Dragon book on compiler design, I'd recommend having a look around this page on compiler tools.

The page itself is quite small but has links through to various excellent resources on lexical analysers.

HTH

cheers,