#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif

#include <ctype.h>
#include <stdlib.h>
#include "QF/cvar.h"
#include "QF/console.h"
#include "QF/qargs.h"
#include "QF/cmd.h"
#include "QF/zone.h"
#include "QF/quakefs.h"
#include "QF/gib.h"
#include "gib_instructions.h"
#include "gib_interpret.h"
#include "gib_modules.h"
#include "gib_parse.h"
#include "gib_vars.h"
#include "gib_error.h"
#include "gib_stack.h"

gib_instack_t *gib_instack = 0;
gib_substack_t *gib_substack = 0;

int         gib_insp = 0;
int         gib_subsp = 0;

void
GIB_InStack_Push (gib_inst_t * instruction, int argc, char **argv)
{
	int         i;

	gib_instack =
		realloc (gib_instack, sizeof (gib_instack_t) * (gib_insp + 1));
	gib_instack[gib_insp].argv = malloc ((argc + 1) * sizeof(char *));

	for (i = 0; i <= argc; i++) {
		gib_instack[gib_insp].argv[i] = malloc (strlen (argv[i]) + 1);
		strcpy (gib_instack[gib_insp].argv[i], argv[i]);
	}

	gib_instack[gib_insp].argc = argc;
	gib_instack[gib_insp].instruction = instruction;
	gib_insp++;
}

void
GIB_InStack_Pop (void)
{
	int         i;

	gib_insp--;

	for (i = 0; i <= gib_instack[gib_insp].argc; i++)
		free (gib_instack[gib_insp].argv[i]);

	free (gib_instack[gib_insp].argv);

	gib_instack = realloc (gib_instack, sizeof (gib_instack_t) * gib_insp);
}

void
GIB_SubStack_Push (gib_module_t * mod, gib_sub_t * sub, gib_var_t * local)
{
	gib_substack =
		realloc (gib_substack, sizeof (gib_substack_t) * (gib_subsp + 1));
	gib_substack[gib_subsp].mod = mod;
	gib_substack[gib_subsp].sub = sub;
	gib_substack[gib_subsp].local = local;
	gib_subsp++;
}

void
GIB_SubStack_Pop (void)
{
	gib_instack = realloc (gib_instack, sizeof (gib_instack_t) * (--gib_subsp));
}