external/bsd/flex/dist/tests/TEMPLATE/parser.y

   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.
  13  *
  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.
  17  *
  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.
  22  */
  23
  24 /* A dummy template parser to build "parser.c" and "parser.h".
  25    How to compile:
  26    bison --defines --output-file="parser.c" --name-prefix="test" parser.y
  27  */
  28 %{
  29 #include <stdio.h>
  30 #include <stdlib.h>
  31 #include "config.h"
  32
  33 #define YYERROR_VERBOSE 1       /* For debugging.   */
  34 /* #define YYPARSE_PARAM scanner  */ /* For pure bison parser. */
  35 /* #define YYLEX_PARAM   scanner  */ /* For reentrant flex. */
  36
  37
  38 int yyerror(char* msg);
  39 extern int testlex();
  40
  41 %}
  42
  43 %%
  44
  45 rule:  ;
  46
  47 %%
  48
  49 int yyerror(char* msg) {
  50     fprintf(stderr,"%s\n",msg);
  51     return 0;
  52 }
  53
  54 /*
  55 int
  56 main ( int argc, char** argv )
  57 {
  58     yyparse ();
  59     return 0;
  60 }
  61 */