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/*
* Interface to Gnumeric internal functions.
*/
#ifdef __cplusplus
extern "C" {
#endif
#include "EXTERN.h"
#include "perl.h"
#undef _
#undef dirty
#include "XSUB.h"
#ifdef __cplusplus
}
#endif
#ifdef PerlIO
typedef int SysRet;
typedef PerlIO * InputStream;
typedef PerlIO * OutputStream;
#else
typedef int SysRet;
typedef FILE * InputStream;
typedef FILE * OutputStream;
#endif
#include <gnumeric.h>
#include <glib/gi18n.h>
#include <expr.h>
#include <func.h>
#include <value.h>
#include <str.h>
static SV *
value2perl(GnmValue *v)
{
SV *sv;
switch (v->type) {
case VALUE_BOOLEAN:
sv = newSViv(v->v_bool.val);
break;
case VALUE_INTEGER:
sv = newSViv(v->v_int.val);
break;
case VALUE_FLOAT:
sv = newSVnv(v->v_float.val);
break;
case VALUE_STRING:
sv = newSVpv(v->v_str.val->str, strlen(v->v_str.val->str));
break;
default:
sv = NULL;
break;
}
return sv;
}
static GnmValue *
perl2value(SV *sv)
{
GnmValue *v = NULL;
if (SvIOK(sv))
v = value_new_int (SvIV(sv));
else if (SvNOK(sv))
v = value_new_float ((gnm_float) SvNV(sv));
else if (SvPOK(sv)) {
STRLEN size;
gchar *s,*tmp;
tmp = SvPV(sv, size);
s = g_malloc (size + 1);
strncpy(s, tmp, size);
s[size] = '\0';
v = value_new_string (s);
g_free (s);
}
return v;
}
static GnmValue *
marshal_func (FunctionEvalInfo *ei, GnmValue *argv[])
{
dSP;
GnmFunc const *func =
gnm_expr_get_func_def ((GnmExpr const *)ei->func_call);
GList *l;
I32 r;
int i, min, max;
SV * result;
GnmValue *v;
/* Read the perlcall man page for more information. */
ENTER;
SAVETMPS;
PUSHMARK(sp);
function_def_count_args (func, &min, &max);
for (i = 0; i < max && argv[i] != NULL; i++) {
XPUSHs(sv_2mortal(value2perl(argv[i])));
}
PUTBACK;
r = perl_call_sv (gnm_func_get_user_data (func), G_SCALAR);
SPAGAIN;
if (r != 1)
croak("uh oh, beter get maco");
result = POPs;
v = perl2value(result);
PUTBACK;
FREETMPS;
LEAVE;
return v;
}
MODULE = Gnumeric PACKAGE = Gnumeric
PROTOTYPES: ENABLE
void
register_function(name, arg_spec, arg_names, help, subref)
char *name
char *arg_spec
char *arg_names
char *help
SV *subref
PREINIT:
GnmFuncGroup *fncat;
GnmFuncDescriptor desc;
GnmFunc *func;
CODE:
fncat = gnm_func_group_fetch (_("Perl plugin"));
desc.name = name;
desc.arg_spec = arg_spec;
desc.arg_names = arg_names;
desc.help = (char const **)&help;
desc.fn_args = &marshal_func;
desc.fn_nodes = NULL;
desc.linker = NULL;
desc.unlinker = NULL;
desc.flags = 0;
desc.impl_status = GNM_FUNC_IMPL_STATUS_UNIQUE_TO_GNUMERIC;
desc.test_status = GNM_FUNC_TEST_STATUS_UNKNOWN;
func = gnm_func_add (fncat, &desc);
gnm_func_set_user_data (func, newSVsv (subref));
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