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[minix.git] / external / bsd / flex / dist / tests / test-bison-nr / parser.y
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1 /*
2 * This file is part of flex.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
20 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
21 * PURPOSE.
24 /*
25 How to compile:
26 bison --defines --output-file="parser.c" --name-prefix="test" parser.y
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <string.h>
32 #include "config.h"
34 #define YYERROR_VERBOSE 1
35 /* #define YYPARSE_PARAM scanner */
36 /* #define YYLEX_PARAM scanner */
38 int yyerror(char* msg);
39 extern int testget_lineno(void);
42 /* A dummy function. A check against seg-faults in yylval->str. */
43 int process_text(char* s) {
44 int total =0;
45 while(*s) {
46 total += (int) *s;
47 ++s;
49 return total;
55 %pure_parser
57 %union {
58 int lineno;
59 char * str;
61 %token <str> IDENT
62 %token <lineno> LINENO
63 %token EQUAL "="
64 %token COLON ":"
65 %token SPACE " "
68 file:
69 line
70 | file line
73 line:
74 LINENO COLON SPACE IDENT EQUAL IDENT
76 process_text($4);
77 process_text($6);
78 /* Check lineno. */
79 if( $1 != @1.first_line || $1 != testget_lineno())
81 yyerror("Parse failed: Line numbers do not match.");
82 YYABORT;
85 /* Recreate the line to stdout. */
86 printf ( "%04d: %s=%s\n", @1.first_line, $4, $6);
92 int yyerror(char* msg) {
93 fprintf(stderr,"%s\n",msg);
94 return 0;