Complete LALR(1) parser generator and engine (like BISON or YACC) but it's all done in PHP, and the input grammar is easier and more maintainable. Write your actions in PHP. Generate PHP output code. Drive your parser with PHP. Wanna make a language?
15March2014 This version is bugged . ( php errors and warnings ) The corrected version is on github.com/rvanvelzen/lime
very good project, thanks!