easier alternative to bison/flex/yacc?

Is there an easier-to-use alternative to bison/flex/yacc/etc for writing parsers?

It's not that I don't understand computer grammar theory.  It's that the documentation and syntax for these programs suck ass.  Richard Stallman fails at documenting his faggotry, not sorting things neatly and omitting needed details.  And examples that work in the info files result in error messages when used with these programs.

I thought Flex and Bison were a piece of cake. I ignored the documentation, and made use of a few good examples to start experimenting.

There's also this: http://www.cs.queensu.ca/~thurston/ragel/