Books On Parsing

[NoXzema]

Any tips on books to find on parsing? In particular, I'm aware of the Dragon Book and the Practical Guide to Parsing but both are upward of a $100.

EDIT: Or are they all just inherently expensive?

[z05DSL3A]

Would the Practical guide be Parsing Techniques: A Practical Guide by Dick Grune, Ceriel J.H. Jacobs?

It's a good book...but it nearly triple the price now compared to when I got it...that is ridiculous...

[Thomas1965]

Did you have a look at http://freecomputerbooks.com ?