scm_* API extension? [was] scm_* API question

[rm@fabula.de]

On Tue, Jul 30, 2002 at 08:09:29PM -0500, Christopher Cramer wrote:
> >      ...
> >      my_module = scm_resolve_module(my_list);
> > 
> >    the right way?
> 
> Yes. Well, I think it might fail if the module isn't already loaded.

It _seems_ to work and load the requested module. 

> 
> Well, scm_c_use_module just calls process-use-modules, so you could
> do that directly.

hmm, 'process-use-modules' is an the _scheme_ level, i'm loking at
the C level -- there seems to be no scm_* level function for this.
Libguile uses a call to the function pointed by 'process_use_modules_var',
but that variable is declared static in modules.c. So, if i understand
right i have to duplicate the code from modules.c (i.e. lookup the
'process-use-modules' function and apply it to my list of symbols).

Would it be usefull to provide a scm_* function for it?

/* file: modules.c */
/* 

 @code{scm_use_module}(@val{list})

 @code{scm_use_module} imports bindings exported from the
 module defined by the list of symbols given as the parameter
 @var{list}. This function is the equivalent of the guile level
 call @code{(use-modules list)}.
*/
 
void
scm_use_module(SCM list)
{
    scm_call_1(SCM_VARIABLE_REF(process_use_module_var), list);
}

> >    Oh, btw, whad _does_ scm_c_read_string return if string isn't
> >    a valid S-expression?
> 
> It shouldn't return, but throw an exception with the misc-error key
> and a helpful message.
> 

Ok, thank's a lot for this information.

  Ralf Mattes

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