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* src/app-utils/guile-util.c

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(gnc_depend): deleted.
(gnc_scm_lookup): new cross-guile function -- disabled until we
can test it.


git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@5599 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Rob Browning 2001-10-14 17:39:18 +00:00
parent 21f756864c
commit de5f036d0a
1 changed files with 52 additions and 19 deletions
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71
src/app-utils/guile-util.c
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@ -30,6 +30,7 @@
#include "messages.h"
#include <g-wrap-runtime-guile.h>
#include <libguile/version.h>
/* This static indicates the debugging module this .o belongs to. */
static short module = MOD_GUILE;
@ -292,34 +293,66 @@ gnc_guile_call1_to_vector(SCM func, SCM arg)
/********************************************************************\
* gnc_depend *
* ensure the given scm file has been loaded, or return FALSE *
* if it cannot be loaded for any reason. *
* *
* Args: scm_file - the file to load if it hasn't been already *
* Returns: true if the file has been loaded, false otherwise *
gnc_scm_lookup
returns the SCM binding associated with the given symbol function,
or SCM_UNDEFINED if it couldn't be retrieved.
Don't use this to get hold of symbols that are considered private
to a given module unless the C code you're writing is considered
part of that module.
Args:
module - where to lookup the symbol, something like "ice-9 debug"
symbol - what to look up.
Returns: value bound to the symbol, if any.
\********************************************************************/
gboolean
gnc_depend(const char *scm_file)
#if 0
************ NOT TESTED YET **************
SCM
gnc_scm_lookup(const char *module, const char *symbol)
{
static SCM depend_func = SCM_UNDEFINED;
SCM arg;
#if defined(SCM_GUILE_MAJOR_VERSION) && \
(SCM_GUILE_MAJOR_VERSION > 0) && (SCM_GUILE_MINOR_VERSION > 4)
SCM scm_module = scm_c_resolve_module(module);
SCM value = scm_c_module_lookup(scm_module, symbol);
return value;
#else
gchar *in_guard_str;
gchar *thunk_str;
SCM in_guard;
SCM thunk;
SCM out_guard;
SCM result;
if (scm_file == NULL)
return FALSE;
in_guard_str =
g_strdup_printf("(lambda () (set-current-module (resolve-module (%s))))",
module);
if (depend_func == SCM_UNDEFINED)
depend_func = gh_eval_str("gnc:depend");
thunk_str = g_strdup_printf("(lambda () (eval '%s))", symbol);
if (!gh_procedure_p(depend_func))
return FALSE;
in_guard = gh_eval_str(in_guard_str);
thunk = gh_eval_str(thunk_str);
out_guard = gh_eval_str("(let ((cm (current-module)))
(lambda () (set-current-module cm)))");
/* FIXME: when we drop support older guiles, drop the (char *) coercion. */
arg = gh_str02scm((char *) scm_file);
result = scm_dynamic_wind(in_guard, thunk, out_guard);
return gh_scm2bool(gh_call1(depend_func, arg));
g_free(in_guard_str);
g_free(thunk_str);
return result;
#endif
}
#endif
/********************************************************************\
* gnc_copy_split *