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Annotation of src/usr.bin/m4/expr.c, Revision 1.18

1.18    ! marco       1: /* $OpenBSD: expr.c,v 1.17 2006/01/20 23:10:19 espie Exp $ */
1.1       deraadt     2: /*
1.16      espie       3:  * Copyright (c) 2004 Marc Espie <espie@cvs.openbsd.org>
1.1       deraadt     4:  *
1.16      espie       5:  * Permission to use, copy, modify, and distribute this software for any
                      6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
                      8:  *
                      9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       deraadt    16:  */
1.17      espie      17: #include <stdint.h>
1.16      espie      18: #include <stdio.h>
1.10      espie      19: #include <stddef.h>
1.5       espie      20: #include "mdef.h"
1.10      espie      21: #include "extern.h"
1.1       deraadt    22:
1.16      espie      23: int32_t end_result;
                     24: const char *copy_toeval;
1.1       deraadt    25:
1.16      espie      26: extern void yy_scan_string(const char *);
                     27: extern int yyparse(void);
1.1       deraadt    28:
                     29: int
1.16      espie      30: yyerror(const char *msg)
1.1       deraadt    31: {
1.16      espie      32:        fprintf(stderr, "m4: %s in expr %s\n", msg, copy_toeval);
                     33:        return(0);
1.1       deraadt    34: }
                     35:
1.18    ! marco      36: int
1.16      espie      37: expr(const char *toeval)
1.1       deraadt    38: {
1.16      espie      39:        copy_toeval = toeval;
                     40:        yy_scan_string(toeval);
                     41:        yyparse();
                     42:        return end_result;
1.1       deraadt    43: }