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/*
* gretl -- Gnu Regression, Econometrics and Time-series Library
* Copyright (C) 2001 Allin Cottrell and Riccardo "Jack" Lucchetti
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "gretl.h"
#include "gfn_arglists.h"
/* apparatus for remembering the list of arguments given to
packaged functions (gfn)
*/
struct arglist_ {
char pkgname[32];
int argc;
char **argv;
};
static arglist **arglists;
static int n_arglists;
static int arglist_push (arglist *a)
{
int n = n_arglists + 1;
arglist **A;
A = realloc(arglists, n * sizeof *A);
if (A == NULL) {
return E_ALLOC;
} else {
arglists = A;
arglists[n-1] = a;
n_arglists = n;
}
return 0;
}
static void arglist_destroy (arglist *a)
{
if (a != NULL) {
strings_array_free(a->argv, a->argc);
free(a);
}
}
void arglist_cleanup (void)
{
int i;
for (i=0; i<n_arglists; i++) {
arglist_destroy(arglists[i]);
}
free(arglists);
arglists = NULL;
n_arglists = 0;
}
arglist *arglist_new (const char *pkgname, int argc)
{
arglist *a = malloc(sizeof *a);
if (a != NULL) {
a->argv = strings_array_new(argc);
if (a->argv == NULL) {
free(a);
a = NULL;
} else {
int err;
*a->pkgname = '\0';
strncat(a->pkgname, pkgname, 31);
a->argc = argc;
err = arglist_push(a);
if (err) {
arglist_destroy(a);
a = NULL;
}
}
}
return a;
}
arglist *arglist_lookup (const char *pkgname)
{
int i;
for (i=0; i<n_arglists; i++) {
if (!strcmp(arglists[i]->pkgname, pkgname)) {
return arglists[i];
}
}
return NULL;
}
int arglist_record_arg (arglist *a, int i, const char *val)
{
if (a == NULL || i < 0 || i > a->argc) {
return E_DATA;
} else {
free(a->argv[i]);
a->argv[i] = gretl_strdup(val);
return 0;
}
}
const char *arglist_lookup_val (arglist *a, int i)
{
if (a == NULL || i < 0 || i > a->argc) {
return NULL;
} else {
return a->argv[i];
}
}
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