Re: lex/yacc vs parser combinators

Sylvain Schmitz <schmitz@i3s.unice.fr>
8 Nov 2005 23:34:05 -0500

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Related articles
lex/yacc vs parser combinators nospam@mega-nerd.com (Erik de Castro Lopo) (2005-11-04)
Re: lex/yacc vs parser combinators schmitz@i3s.unice.fr (Sylvain Schmitz) (2005-11-08)
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From: Sylvain Schmitz <schmitz@i3s.unice.fr>
Newsgroups: comp.compilers
Date: 8 Nov 2005 23:34:05 -0500
Organization: Compilers Central
References: 05-11-036
Keywords: parse, tools
Posted-Date: 08 Nov 2005 23:34:05 EST

Erik de Castro Lopo wrote:
> I have used and feel quite comfortable with lex/yacc (both
> the GNU versions and ocamllex/ocamlyacc) but find that
> once you have a grammar defined it still takes quite a bit
> of iterative tweaking to then create an AST from within the
> grammar's productions.

You might then find interest in programs assisting you during the
creation of the AST. Two come to my mind, and I'm sure there are many more:
* TreeCC <http://www.southern-storm.com.au/treecc.html>, and
* BNF Converter <http://www.cs.chalmers.se/~markus/BNFC/>.

--
Hope that helps,

      Sylvain

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