usr.sbin/ndiscvt/inf-parse.y

   1 %{
   2 /*
   3  * Copyright (c) 2003
   4  *      Bill Paul <wpaul@windriver.com>.  All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. All advertising materials mentioning features or use of this software
  15  *    must display the following acknowledgement:
  16  *      This product includes software developed by Bill Paul.
  17  * 4. Neither the name of the author nor the names of any co-contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
  25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
  31  * THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #include <sys/cdefs.h>
  35 __FBSDID("$FreeBSD$");
  36
  37 #include <stdio.h>
  38 #include <sys/types.h>
  39 #include <sys/queue.h>
  40
  41 #include "inf.h"
  42
  43 extern int yyparse (void);
  44 extern int yylex (void);
  45 extern void yyerror(const char *);
  46 %}
  47
  48 %token  EQUALS COMMA EOL
  49 %token  <str> SECTION
  50 %token  <str> STRING
  51 %token  <str> WORD
  52
  53 %union {
  54         char *str;
  55 }
  56
  57 %%
  58
  59 inf_file
  60         : inf_list
  61         |
  62         ;
  63
  64 inf_list
  65         : inf
  66         | inf_list inf
  67         ;
  68
  69 inf
  70         : SECTION EOL
  71                 { section_add($1); }
  72         | WORD EQUALS assign EOL
  73                 { assign_add($1); }
  74         | WORD COMMA regkey EOL
  75                 { regkey_add($1); }
  76         | WORD EOL
  77                 { define_add($1); }
  78         | EOL
  79         ;
  80
  81 assign
  82         : WORD
  83                 { push_word($1); }
  84         | STRING
  85                 { push_word($1); }
  86         | WORD COMMA assign
  87                 { push_word($1); }
  88         | STRING COMMA assign
  89                 { push_word($1); }
  90         | COMMA assign
  91                 { push_word(NULL); }
  92         | COMMA
  93                 { push_word(NULL); }
  94         |
  95         ;
  96
  97 regkey
  98         : WORD
  99                 { push_word($1); }
 100         | STRING
 101                 { push_word($1); }
 102         | WORD COMMA regkey
 103                 { push_word($1); }
 104         | STRING COMMA regkey
 105                 { push_word($1); }
 106         | COMMA regkey
 107                 { push_word(NULL); }
 108         | COMMA
 109                 { push_word(NULL); }
 110         ;
 111 %%