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- /*
- * internals.c
- *
- * MathMap
- *
- * Copyright (C) 1997-2000 Mark Probst
- *
- * 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 2
- * 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, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- #include <stdlib.h>
- #include <string.h>
-
- #include "tags.h"
- #include "internals.h"
-
- static internal_t *first = 0;
-
- internal_t*
- register_internal (const char *name, int number, int length)
- {
- internal_t *internal = (internal_t*)malloc(sizeof(internal_t));
-
- strncpy(internal->name, name, MAX_INTERNAL_LENGTH);
- internal->name[MAX_INTERNAL_LENGTH] = '\0';
- internal->value.number = number;
- internal->value.length = length;
- internal->next = first;
- first = internal;
-
- return internal;
- }
-
- internal_t*
- lookup_internal (const char *name, tuple_info_t *type)
- {
- internal_t *internal;
-
- for (internal = first; internal != 0; internal = internal->next)
- if (strcmp(internal->name, name) == 0)
- {
- *type = make_tuple_info(internal->value.number, internal->value.length);
- internal->is_used = 1;
- return internal;
- }
-
- return 0;
- }
-
- void
- internals_clear_used (void)
- {
- internal_t *internal;
-
- for (internal = first; internal != 0; internal = internal->next)
- internal->is_used = 0;
- }
-