Re: gEDA-user: Schematic Level DRC DIscussion

[Steve Meier <smeier@xxxxxxxxxxxxxxxxxxx>]

Prolog yep once upon a time. From my view point there is already a
sizable investment in scheme by the geda users and it seems good enough.
I havn't time to do more then I already am and so I plan to finsh what i
started. Others are of course more then free to rewrite or add a prolog
layer or anything else they like.

Steve meier


Dave N6NZ wrote:
> Chris Albertson wrote:
>   
>> Have you looked at Prolog?  
>>     
> Yes, indeed.  Quite fluent at one time in the past.
>
> For DRC, I envision a language specific to the problem domain of 
> specifying DRC rules.  It might compile into Prolog, or guile, or 
> whatever, but the typical user is not going to want to learn Prolog 
> simply to add a couple of in-house or technology-specific design rules 
> to a rule database.
>
> Guile and Prolog serve the same purpose as assembly language.
>
> -dave
>
>
>   
>> People have written very complex programs in Prolog, several so called
>> "expert systems" 
>>     
> People including me.  But a toy one, not a real one.  However, I did 
> once have the dubious honor of managing a development project heavily 
> invested in a major production application coded in Prolog.  We moved 
> off the platform in the end for reasons of code maintainability, and 
> secondarily performance.
>
>   
>> and it would be a good way to implement features like
>> autoplacement and autorouting.
>>     
> Perhaps, as long as your PC board was under 3 square inches and two 
> layers, and you don't mind radically suboptimal results.  I'll pass.
>
>
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>   



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