lex / yacc for Python

[Mike Fletcher]

Normally I point new users not to mcf.pars (which I haven't touched in ages
(though I still use it daily at work)) and point them to simpleparse, which
generates tuples for use with the mxTextTools engine.

Neither system is a lexx/yacc style system.  They use very similar general
pattern matching machinery which does not use lexxing machinery at all (i.e.
no tokenisation pass).  Both systems are targeted at (moderately) fast
parsing of a very limited class of grammars.

http://members.home.com/mcfletch/programming/simpleparse/simpleparse.html

As noted on your page, mcf.pars is still available as part of mcf.vrml, but
the version of mcf.vrml on starship.python.net is actually an old version of
that package.  I would have to check to see if the mcf.pars package changed
between that version and later versions of mcf.vrml.

Cheers,
Mike

-----Original Message-----
From: python-list-request at cwi.nl [mailto:python-list-request at cwi.nl]On
Behalf Of Andrew M. Kuchling
Sent: August 31, 1999 5:50 PM
To: python-list at cwi.nl
Subject: Re: lex / yacc for Python


"Jacques Oosthuizen" <jacques at integra.co.za> writes:
> Any one know if there is such a beast

Quite a few, actually; many Python users seem to be language geeks.
A list of parsing systems is at:

http://starship.python.net/crew/amk/python/string.html#parsing

I've never used any of them, and don't know which ones are still
maintained, which are toys, and which are the most powerful.  Good luck!

--
A.M. Kuchling			http://starship.python.net/crew/amk/
This isn't life in the fast lane, it's life in the oncoming traffic.
    -- Terry Pratchett, in alt.fan.pratchett