Re: scheme night-mare...

[Boris Shingarov]

On 07/11/2010 07:22 PM, Arno Waschk wrote:
> Thanks again, that wokrs at least for some displaying, buit still i 
> need that handy conversion from this type of scheme list into 
> something i can deal with with c.
> Please!!!

No, no, the main question is, what are you going to do with that 
"something"?  Ok, the keys are probably Scheme strings, so you can 
transform them into UTF byte-arrays which you can then feed into 
functions like "printf".  But in Scheme, you frequently work with lists 
of things (lists themselves, or atoms) -- this is what a "data 
structure" looks like.  So when you say "something i can DEAL with with 
c", what exactly is this DEALing you want to do?  And with which 
objects?  some of them are Scheme wrappers around C structs.  For those, 
there is smob/unsmob.  But for true Scheme data structures, you really 
want to deal with them using Scheme code -- that is, using scm_call_X(), 
as Carl already suggested.

Boris