/* $NetBSD: config_yacc.y,v 1.6 2020/04/22 23:51:34 joerg Exp $ */

/* $NetBSD: config_yacc.y,v 1.6 2020/04/22 23:51:34 joerg Exp $ */

/*-
* Copyright (c) 2007 Juan Romero Pardines.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

%{

#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: config_yacc.y,v 1.6 2020/04/22 23:51:34 joerg Exp $");
#endif /* not lint */

#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <err.h>
#include <errno.h>
#include <stdbool.h>
#include <stdlib.h>

#include <prop/proplib.h>

#include "envstat.h"

int yylex(void);
int yyparse(void);
int yyerror(const char *, ...) __printflike(1, 2);
void yyrestart(FILE *);

int yyline;
extern char *yytext;
static prop_dictionary_t kdict;

%}

%token EOL EQUAL LBRACE RBRACE
%token STRING NUMBER SENSOR
%token SENSOR_PROP DEVICE_PROP
%token <string> SENSOR STRING SENSOR_PROP DEVICE_PROP
%union {
char *string;
}

%%

main : devices
| { exit(EXIT_SUCCESS); }
;

devices : device
| devices device
;

device : STRING LBRACE props RBRACE
{ config_devblock_add($1, kdict); }
;

props : sensor
| props sensor
| devprop
| props devprop
;

sensor : SENSOR LBRACE params RBRACE
{ config_dict_add_prop("index", $1);
config_dict_mark(); }
;

params : prop
| params prop
;

prop : SENSOR_PROP EQUAL STRING EOL
{ config_dict_add_prop($1, $3); }
;

devprop : DEVICE_PROP EQUAL STRING EOL
{ config_dict_adddev_prop($1, $3, yyline); }
;

%%

int
yyerror(const char *fmt, ...)
{
va_list ap;

va_start(ap, fmt);
fprintf(stderr, "%s: ", getprogname());
vfprintf(stderr, fmt, ap);
fprintf(stderr, " in line %d\n", yyline);
va_end(ap);

exit(EXIT_FAILURE);
}

void
config_parse(FILE *f, prop_dictionary_t d)
{
kdict = prop_dictionary_copy(d);
yyrestart(f);
yyline = 1;
yyparse();
}