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 #ifdef __FreeBSD__
  36 __FBSDID("$FreeBSD: src/usr.sbin/ndiscvt/inf-parse.y,v 1.2 2004/01/02 04:31:06 wpaul Exp $");
  37 #endif
  38 #ifdef __NetBSD__
  39 __RCSID("$NetBSD: inf-parse.y,v 1.4 2006/04/19 15:45:21 christos Exp $");
  40 #endif
  41
  42
  43 #include <stdio.h>
  44 #include <sys/types.h>
  45 #include <sys/queue.h>
  46
  47 #include "inf.h"
  48
  49 extern int yyparse(void);
  50 extern int yylex(void);
  51 extern void yyerror(const char *);
  52 %}
  53
  54 %token  EQUALS COMMA EOL
  55 %token  <str> SECTION
  56 %token  <str> STRING
  57 %token  <str> WORD
  58
  59 %union {
  60         char *str;
  61 }
  62
  63 %%
  64
  65 inf_file
  66         : inf_list
  67         |
  68         ;
  69
  70 inf_list
  71         : inf
  72         | inf_list inf
  73         ;
  74
  75 inf
  76         : SECTION EOL
  77                 { section_add($1); }
  78         | WORD EQUALS assign EOL
  79                 { assign_add($1); }
  80         | WORD COMMA regkey EOL
  81                 { regkey_add($1); }
  82         | WORD EOL
  83                 { define_add($1); }
  84         | EOL
  85         ;
  86
  87 assign
  88         : WORD
  89                 { push_word($1); }
  90         | STRING
  91                 { push_word($1); }
  92         | WORD COMMA assign
  93                 { push_word($1); }
  94         | STRING COMMA assign
  95                 { push_word($1); }
  96         | COMMA assign
  97                 { push_word(NULL); }
  98         |
  99         ;
 100
 101 regkey
 102         : WORD
 103                 { push_word($1); }
 104         | STRING
 105                 { push_word($1); }
 106         | WORD COMMA regkey
 107                 { push_word($1); }
 108         | STRING COMMA regkey
 109                 { push_word($1); }
 110         | COMMA regkey
 111                 { push_word(NULL); }
 112         | COMMA
 113                 { push_word(NULL); }
 114         ;
 115 %%