newbie question on Bison/Yacc

golova@my-deja.com
31 Dec 2000 03:04:16 -0500

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newbie question on Bison/Yacc golova@my-deja.com (2000-12-31)
Re: newbie question on Bison/Yacc loewis@informatik.hu-berlin.de (Martin von Loewis) (2001-01-04)
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From: golova@my-deja.com
Newsgroups: comp.compilers
Date: 31 Dec 2000 03:04:16 -0500
Organization: Deja.com
Keywords: yacc, question, comment
Posted-Date: 31 Dec 2000 03:04:16 EST

Dear All,


I am totally new to yacc/bison and wondering if you could help me with
the following question: I need to parse an algebraic expression and
calculate its value at a bunch of different points; what are the ways
(the fastest way?) to reset the "independent vars" and recalculate the
expression again? In other words, how to re-set variables from a
different function and get some answers back (without extra
re-parsing)?


Thank you so much for any insights!


Best regards,
    Dmitry
[Translate it into in internal form such as a tree or RPN and reinterpret
that. -John]

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