1a841e1ebSBaptiste Daroussin /* $OpenBSD: expr.c,v 1.18 2010/09/07 19:58:09 marco Exp $ */
29b50d902SRodney W. Grimes /*
3a841e1ebSBaptiste Daroussin * Copyright (c) 2004 Marc Espie <espie@cvs.openbsd.org>
49b50d902SRodney W. Grimes *
5a841e1ebSBaptiste Daroussin * Permission to use, copy, modify, and distribute this software for any
6a841e1ebSBaptiste Daroussin * purpose with or without fee is hereby granted, provided that the above
7a841e1ebSBaptiste Daroussin * copyright notice and this permission notice appear in all copies.
89b50d902SRodney W. Grimes *
9a841e1ebSBaptiste Daroussin * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10a841e1ebSBaptiste Daroussin * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11a841e1ebSBaptiste Daroussin * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12a841e1ebSBaptiste Daroussin * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13a841e1ebSBaptiste Daroussin * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14a841e1ebSBaptiste Daroussin * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15a841e1ebSBaptiste Daroussin * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
169b50d902SRodney W. Grimes */
179b50d902SRodney W. Grimes #include <sys/cdefs.h>
18a841e1ebSBaptiste Daroussin #include <stdint.h>
199b50d902SRodney W. Grimes #include <stdio.h>
20a841e1ebSBaptiste Daroussin #include <stddef.h>
21acc9d408SJuli Mallett #include "mdef.h"
22acc9d408SJuli Mallett #include "extern.h"
239b50d902SRodney W. Grimes
24a841e1ebSBaptiste Daroussin int32_t end_result;
25*eccad222SEd Schouten static const char *copy_toeval;
26a841e1ebSBaptiste Daroussin int yyerror(const char *msg);
279b50d902SRodney W. Grimes
28a841e1ebSBaptiste Daroussin extern void yy_scan_string(const char *);
29a841e1ebSBaptiste Daroussin extern int yyparse(void);
309b50d902SRodney W. Grimes
319b50d902SRodney W. Grimes int
yyerror(const char * msg)32a841e1ebSBaptiste Daroussin yyerror(const char *msg)
339b50d902SRodney W. Grimes {
34a841e1ebSBaptiste Daroussin fprintf(stderr, "m4: %s in expr %s\n", msg, copy_toeval);
35a841e1ebSBaptiste Daroussin return(0);
369b50d902SRodney W. Grimes }
379b50d902SRodney W. Grimes
38a841e1ebSBaptiste Daroussin int
expr(const char * toeval)39a841e1ebSBaptiste Daroussin expr(const char *toeval)
409b50d902SRodney W. Grimes {
41a841e1ebSBaptiste Daroussin copy_toeval = toeval;
42a841e1ebSBaptiste Daroussin yy_scan_string(toeval);
43a841e1ebSBaptiste Daroussin yyparse();
44a841e1ebSBaptiste Daroussin return end_result;
459b50d902SRodney W. Grimes }
46