config_yacc.y revision 1.1 
1/* 	$NetBSD: config_yacc.y,v 1.1 2007/10/07 04:16:48 xtraeme Exp $	*/
2
3/*-
4 * Copyright (c) 2007 Juan Romero Pardines.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28%{
29
30#include <sys/cdefs.h>
31#ifndef lint
32__RCSID("$NetBSD: config_yacc.y,v 1.1 2007/10/07 04:16:48 xtraeme Exp $");
33#endif /* not lint */
34
35#include <stdio.h>
36#include <string.h>
37#include <stdarg.h>
38#include <err.h>
39#include <errno.h>
40#include <stdbool.h>
41
42#include <prop/proplib.h>
43
44#include "envstat.h"
45
46int yylex(void);
47int yyparse(void);
48int yyerror(const char *, ...);
49void yyrestart(FILE *);
50
51int yyline;
52char *yytext;
53static prop_dictionary_t kdict;
54
55%}
56
57%token EOL EQUAL LBRACE RBRACE
58%token STRING NUMBER SENSOR
59%token SENSOR_PROP
60%token <string>	SENSOR STRING SENSOR_PROP
61%union {
62	char *string;
63}
64
65%%
66
67main	:			{ exit(EXIT_SUCCESS); }
68     	|	device
69	|	main device
70	;
71
72device	:	STRING LBRACE sensors RBRACE
73				{ config_devblock_add($1, kdict); }
74	;
75
76sensors	:	sensor
77	|	sensors sensor
78	;
79
80sensor	:	SENSOR LBRACE params RBRACE
81				{ config_dict_add_prop("index", $1);
82				  config_dict_mark($1); }
83	;
84
85params	:	prop
86	|	params prop
87	;
88
89prop	:	SENSOR_PROP EQUAL STRING EOL
90     				{ config_dict_add_prop($1, $3); }
91	;
92
93%%
94
95int
96yyerror(const char *fmt, ...)
97{
98	va_list ap;
99
100	va_start(ap, fmt);
101	fprintf(stderr, "%s: ", getprogname());
102	vfprintf(stderr, fmt, ap);
103	fprintf(stderr, " in line %d\n", yyline);
104	va_end(ap);
105
106	exit(EXIT_FAILURE);
107}
108
109void
110config_parse(FILE *f, prop_dictionary_t d)
111{
112	kdict = prop_dictionary_copy(d);
113	yyrestart(f);
114	yyline = 0;
115	yyparse();
116}
117