Bulat Ziganshin writes:
afaik Spirit is modeled after ParseC (parsing combinators) haskell library and Phoenix was needed for this library because parser combinators require lazy functional language to work :)
Just a minor nit: the Phoenix library has nothing to do with parsing. It's basically a collection of expression templates which save you a lot of time when it comes to writing glue code. Binding arguments of arbitrary function objects is something Phoenix can do, for example. Spirit works well with that library because both were written by the same author, but they aren't really related. You are right, though, that Spirit was influenced by Haskell quite a bit. As a matter of fact, it was Spirit's author -- Joel de Guzman -- who made me aware of Haskell when he posted some example source code on the mailing list back then; I think it was the usual implementation of Quicksort. I distinctly remember that I couldn't believe my eyes when I saw that. ;-) Peter