Re: [Gnu3dkit-dev] Strings and parameter lists

[Philippe C . D . Robert]

On Sunday, February 9, 2003, at 10:55  Uhr, Gerard Iglesias wrote:
> > The question here is do we want to be able to read, write or read and 
> > write RIB files. If we ie. only have to write RIBs then we could ie. 
> > provide a special action implementation which generates a RIB from 
> > the scene graph.
>
> About RIB, it would be very nice to have read and write RIB, obviously 
> the writing is the easiest. I am working on it now, not too fast but I 
> am working on it :) I didn't find nothing open source to read rib 
> files. I am hesitating to write my own parser or use lex and yacc 
> (well flex and bison). In fact this capacity would a big plus for our 
> 3DKit...

Is your plan to design/implement a "RIB loader" which creates a 3DKit 
scene graph from a RIB file or are you planning to come up with a 
"stream processor" which feeds the RIB to the renderer of choice 
directly?

> > So the main question here is probably whether we want to design a 
> > pure Objective-C API or mix it with a C interface. Again, I'd choose 
> > the Objective-C approach, but...
>
> I think that we have to make ObjC first, because if speed become a 
> real issue I think that it will be better to give a complete 
> equivalent C interface, a little bit as CoreFoundation/Foundation

Well, to me it is not a question of speed but more of design 
philosophy. It is a different style to use dictionaries for argument 
passing than C argument lists. But I agree that we should use 
dictionaries, and if we find out that the programming model becomes too 
cumbersome (or too slow) to use then we can still change it in the 
implementation phase.

-Phil
--
Philippe C.D. Robert
http://www.nice.ch/~phip