config_yacc.y revision 1.2 
1/* 	$NetBSD: config_yacc.y,v 1.2 2007/10/07 13:46:22 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 1.2 2007/10/07 13:46:22 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	:	devices
68     	|			{ exit(EXIT_SUCCESS); }
69     	;
70
71devices	:	device
72	|	devices device
73	;
74
75device	:	STRING LBRACE sensors RBRACE
76				{ config_devblock_add($1, kdict); }
77	;
78
79sensors	:	sensor
80	|	sensors sensor
81	;
82
83sensor	:	SENSOR LBRACE params RBRACE
84				{ config_dict_add_prop("index", $1);
85				  config_dict_mark($1); }
86	;
87
88params	:	prop
89	|	params prop
90	;
91
92prop	:	SENSOR_PROP EQUAL STRING EOL
93     				{ config_dict_add_prop($1, $3); }
94	;
95
96%%
97
98int
99yyerror(const char *fmt, ...)
100{
101	va_list ap;
102
103	va_start(ap, fmt);
104	fprintf(stderr, "%s: ", getprogname());
105	vfprintf(stderr, fmt, ap);
106	fprintf(stderr, " in line %d\n", yyline);
107	va_end(ap);
108
109	exit(EXIT_FAILURE);
110}
111
112void
113config_parse(FILE *f, prop_dictionary_t d)
114{
115	kdict = prop_dictionary_copy(d);
116	yyrestart(f);
117	yyline = 0;
118	yyparse();
119}
120