[DGD] one more about parse_string

[Felix A. Croes]

pete at ana.sk wrote:

> Just a question: if i understand it good, parse_string stores build 
> grammar automatons in object, one per object, or am in mistaking? 
> Now is the question if it could be good idea to make someting like 
> special parse object and clone new one for each grammar that 
> want to use more often, would it affect performance good enough to 
> make the code for it? I personaly hate to write string parsers, so im 
> using plenty or parse_string and grammars already ... and i have 
> only little piece of code done yet :)

Yes.  Re-using the same grammar makes things a lot faster, so it is
worthwhile to make objects that use and re-use a single grammar, only.
If the same object uses a different grammar, the parsing automaton has
to be rebuilt from the beginning.

Regards,
Dworkin
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