AW: Fwd: Re: speed-up parsing

[Olav Groehn]

Hi Christian,

If you store the parsed tree in a structure (linked tree for example) you
can do so.

More information can be found in "A Compact Guide to Lex & Yacc" that can be
found here:
http://www.epaperpress.com/lexandyacc/index.html

Have a look on the Example Interpreter and the way, ther parse tree is
stored in structures (page 23 ff)

Regards

Olav

-----Ursprüngliche Nachricht-----
Von: address@hidden [mailto:address@hidden
Auftrag von Christian Kristukat
Gesendet: Mittwoch, 19. Juni 2002 18:26
An: Hans Aberg
Cc: bison
Betreff: Re: Fwd: Re: speed-up parsing


On Wednesday 19 June 2002 11:20, you wrote:
> [...]
> We do not have much input on how you want to use your stuff. Why, in your
> least-squares implementation, do you need to your parser several times?
>
Well, let's forget the least-squares thing... I may have a basic
understanding
problem. So my question is: is it possible to evaluate an already parsed
expression once again without having to call yparse() and if yes, how do I
do
it. E.g. you have a parse string "sin(x)" and you want to evaluate it at
many
different x.

Christian Kristukat


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