AW: [Caml-list] Two questions about lex/yacc and lablgtk/gl

[Gerd Stolpmann <info@gerd-stolpmann.de>]

Am 05.08.2012 14:06:41 schrieb(en) Nicolas FRANCOIS:
> Hi.
> 
> I'd like to create a 3D dynamic geometry application. I developped
> DrGeoCaml a few years ago, but it's now quite old, and my Caml  
> practice
> is a bit rusty. So a few questions to start on the right tracks :
> 
> 1) I'd like to create a parser, with the help of ocamllex/yacc, but
> I don't find the help pages very instructive. Is there a good
> tutorial like "Ocamllex for complete numbs" ?

I don't know of any such tutorial, but you can also watch out for a lex  
tutorial (i.e. for C), because the matching algorithm is exactly the  
same. The syntax is of course different, but I guess this is the easier  
part, and extractable from the manual (or sample code).

Regarding ocamlyacc, consider to use Menhir instead. It includes a mode  
where grammar conflicts are explained by example, and in my experience  
this is the difficult part of developing a grammar. And it has macros,  
and other convenience features.

Gerd

> 2) I'd like to use lablgtk for the graphic interface, and lablgl for
> the 3D visualization. It's mentionned in lablgtk documentation that
> this can be done, but once again, i didn't find much help. Any clue ?
> 
> Thanks for any tip.
> 
> \bye
> 
> --
> 
> Nicolas FRANCOIS                      |  /\
> http://nicolas.francois.free.fr       | |__|
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> 

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Gerd Stolpmann, Darmstadt, Germany    gerd@gerd-stolpmann.de
Creator of GODI and camlcity.org.
Contact details:        http://www.camlcity.org/contact.html
Company homepage:       http://www.gerd-stolpmann.de
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