148 lines
2.8 KiB
C
148 lines
2.8 KiB
C
/*
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grab.c
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frame macro grabbing
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Copyright (C) 2011 Bill Currie <bill@taniwha.org>
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Author: Bill Currie <bill@taniwha.org>
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Date: 2011/01/06
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <ctype.h>
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#include "QF/hash.h"
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#include "diagnostic.h"
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#include "expr.h"
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#include "grab.h"
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#include "options.h"
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#include "qfcc.h"
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#include "strpool.h"
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int grab_frame;
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int grab_other;
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static hashtab_t *frame_tab;
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static hashtab_t *grab_tab;
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typedef struct frame_s {
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struct frame_s *next;
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const char *name;
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int num;
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} frame_t;
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static frame_t *free_frames;
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static frame_t grab_list[] = {
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{0, "cd", 0},
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{0, "origin", 0},
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{0, "base", 0},
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{0, "flags", 0},
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{0, "scale", 0},
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{0, "skin", 0},
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};
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static const char *
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frame_get_key (const void *f, void *unused)
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{
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return ((frame_t*)f)->name;
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}
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static void
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frame_free (void *_f, void *unused)
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{
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frame_t *f = (frame_t *)_f;
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FREE (frames, f);
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}
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int
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do_grab (char *token)
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{
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static int initialized;
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frame_t *frame;
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if (!initialized) {
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size_t i;
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initialized = 1;
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frame_tab = Hash_NewTable (1021, frame_get_key, frame_free, 0);
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grab_tab = Hash_NewTable (1021, frame_get_key, 0, 0);
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for (i = 0; i < sizeof (grab_list) / sizeof (grab_list[0]); i++)
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Hash_Add (grab_tab, &grab_list[i]);
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}
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while (isspace ((unsigned char)*++token))
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// advance over $ and leading space
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;
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if (!strcmp (token, "frame"))
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return -grab_frame;
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if (!strcmp (token, "frame_reset")) {
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clear_frame_macros ();
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return -grab_other;
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}
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if (Hash_Find (grab_tab, token))
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return -grab_other;
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frame = Hash_Find (frame_tab, token);
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if (frame)
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return frame->num;
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return 0;
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}
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static int frame_number;
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void
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add_frame_macro (char *token)
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{
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frame_t *frame;
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if (Hash_Find (frame_tab, token)) {
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warning (0, "duplicate frame macro `%s'", token);
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if (options.traditional)
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frame_number++;
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return;
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}
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ALLOC (1024, frame_t, frames, frame);
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frame->name = save_string (token);
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frame->num = frame_number++;
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Hash_Add (frame_tab, frame);
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}
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void
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clear_frame_macros (void)
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{
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frame_number = 0;
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if (frame_tab)
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Hash_FlushTable (frame_tab);
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}
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