hi eduard, On Mon, Nov 12, 2012 at 10:25:28PM +0200, Eduard Bondarenko wrote: > How to implement recursive rules like: > > if <condition> then > if <condition2> then > end > end
the short answer is: you dont. ragel is a parser for regular languages, and your example is not regular due to the recursion you are after. you could however use ragel as your lexer and use something else as your parser. if the number of such recursion cases is limited then you can get away with just using ragel, byt essentially pushing the current state onto a state, see fcall/fret in the ragel manual. regards robert -- Robert Lemmen http://www.semistable.com
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