[DUG] Expression Parser/Evaluator

[David Brennan]

Hi Dennis,

Interesting suggestion. From a quick look it appears a Python DLL is
required?

While that is possible it is a definite negative against using Python. We
really want to avoid more external DLL's if we can.

Thanks,
David.
 

-----Original Message-----
From: delphi-bounces at delphi.org.nz [mailto:delphi-bounces at delphi.org.nz] On
Behalf Of Dennis Chuah
Sent: Wednesday, 24 October 2007 8:51 p.m.
To: NZ Borland Developers Group - Delphi List
Subject: Re: [DUG] Expression Parser/Evaluator


Try Python for Delphi.  It can do all that you want below, plus a lot more. 
And besides, the price is right!

----- Original Message ----- 
From: "David Brennan" <dugdavid at dbsolutions.co.nz>
To: "DUG" <delphi at delphi.org.nz>
Sent: Wednesday, October 24, 2007 4:18 PM
Subject: [DUG] Expression Parser/Evaluator


> Hi,
>
>
>
> Another question in the popular family of "what is the best component 
> suite
> for X?".
>
>
>
> Can anyone recommend a good expression parser/evaluator? Ideally a bit 
> more
> than just mathematical expressions, we would like it to handle logical
> evaluation (ie Booleans), IF statements and ideally strings (primarily for
> comparison within boolean IF conditions but if the parser/evaluator could
> handle strings as results then all the better). We don't need any loop
> constructs or more advanced program control constructs. We would probably
> like to be able to define our own expression functions but the user 
> probably
> doesn't need to be able to.
>
>
>
> Quality (ie reliability), functionality and availability of source code 
> are
> our main criteria here. Price isn't going to be so much of an issue unless
> they are hideously expensive or there are multiple good options to choose
> between.
>
>
>
> Any recommendations? Warnings on what to avoid?
>
>
>
> Thanks,
>
> David.
>
>
>
>
>
>
>
>
>
>
>
>
>
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>


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