config_yacc.y revision 1.3 
1/* 	$NetBSD: config_yacc.y,v 1.3 2007/11/16 08:01:38 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 1.3 2007/11/16 08:01:38 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 DEVICE_PROP
60%token <string>	SENSOR STRING SENSOR_PROP DEVICE_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 props RBRACE
76				{ config_devblock_add($1, kdict); }
77	;
78
79props	:	sensor
80	|	props sensor
81	|	devprop
82	|	props devprop
83	;
84
85sensor	:	SENSOR LBRACE params RBRACE
86				{ config_dict_add_prop("index", $1);
87				  config_dict_mark(); }
88	;
89
90params	:	prop
91	|	params prop
92	;
93
94prop	:	SENSOR_PROP EQUAL STRING EOL
95     				{ config_dict_add_prop($1, $3); }
96	;
97
98devprop	:	DEVICE_PROP EQUAL STRING EOL
99				{ config_dict_adddev_prop($1, $3, yyline); }
100	;
101
102
103%%
104
105int
106yyerror(const char *fmt, ...)
107{
108	va_list ap;
109
110	va_start(ap, fmt);
111	fprintf(stderr, "%s: ", getprogname());
112	vfprintf(stderr, fmt, ap);
113	fprintf(stderr, " in line %d\n", yyline);
114	va_end(ap);
115
116	exit(EXIT_FAILURE);
117}
118
119void
120config_parse(FILE *f, prop_dictionary_t d)
121{
122	kdict = prop_dictionary_copy(d);
123	yyrestart(f);
124	yyline = 1;
125	yyparse();
126}
127