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  * $FreeBSD: src/usr.sbin/ndiscvt/inf-parse.y,v 1.2 2004/01/02 04:31:06 wpaul Exp $
  34  */
  35
  36 #include <stdio.h>
  37 #include <sys/types.h>
  38 #include <sys/queue.h>
  39
  40 #include "inf.h"
  41
  42 extern int yyparse (void);
  43 extern int yylex (void);
  44 extern void yyerror(const char *);
  45 %}
  46
  47 %token  EQUALS COMMA EOL
  48 %token  <str> SECTION
  49 %token  <str> STRING
  50 %token  <str> WORD
  51
  52 %union {
  53         char *str;
  54 }
  55
  56 %%
  57
  58 inf_file
  59         : inf_list
  60         |
  61         ;
  62
  63 inf_list
  64         : inf
  65         | inf_list inf
  66         ;
  67
  68 inf
  69         : SECTION EOL
  70                 { section_add($1); }
  71         | WORD EQUALS assign EOL
  72                 { assign_add($1); }
  73         | WORD COMMA regkey EOL
  74                 { regkey_add($1); }
  75         | WORD EOL
  76                 { define_add($1); }
  77         | EOL
  78         ;
  79
  80 assign
  81         : WORD
  82                 { push_word($1); }
  83         | STRING
  84                 { push_word($1); }
  85         | WORD COMMA assign
  86                 { push_word($1); }
  87         | STRING COMMA assign
  88                 { push_word($1); }
  89         | COMMA assign
  90                 { push_word(NULL); }
  91         | COMMA
  92                 { push_word(NULL); }
  93         |
  94         ;
  95
  96 regkey
  97         : WORD
  98                 { push_word($1); }
  99         | STRING
 100                 { push_word($1); }
 101         | WORD COMMA regkey
 102                 { push_word($1); }
 103         | STRING COMMA regkey
 104                 { push_word($1); }
 105         | COMMA regkey
 106                 { push_word(NULL); }
 107         | COMMA
 108                 { push_word(NULL); }
 109         ;
 110 %%