1/*
2 * Copyright (c) 1997-2014 Erez Zadok
3 * Copyright (c) 1989 Jan-Simon Pendry
4 * Copyright (c) 1989 Imperial College of Science, Technology & Medicine
5 * Copyright (c) 1989 The Regents of the University of California.
6 * All rights reserved.
7 *
8 * This code is derived from software contributed to Berkeley by
9 * Jan-Simon Pendry at Imperial College, London.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 *
36 * File: am-utils/amd/conf_parse.y
37 *
38 */
39
40%{
41#ifdef HAVE_CONFIG_H
42# include <config.h>
43#endif /* HAVE_CONFIG_H */
44#include <am_defs.h>
45#include <amd.h>
46
47extern char *yytext;
48extern int ayylineno;
49extern int yylex(void);
50
51static int yyerror(const char *s);
52static int retval;
53static char *header_section = NULL; /* start with no header section */
54
55#define YYDEBUG 1
56
57#define PARSE_DEBUG 0
58
59#if PARSE_DEBUG
60# define dprintf(f,s) fprintf(stderr, (f), ayylineno, (s))
61# define amu_return(v)
62#else /* not PARSE_DEBUG */
63# define dprintf(f,s)
64# define amu_return(v) return((v))
65#endif /* not PARSE_DEBUG */
66
67%}
68
69%union {
70char *strtype;
71}
72
73%token LEFT_BRACKET RIGHT_BRACKET EQUAL
74%token NEWLINE
75%token <strtype> NONWS_STRING
76%token <strtype> NONWSEQ_STRING
77%token <strtype> QUOTED_NONWSEQ_STRING
78
79%start file
80%%
81
82/****************************************************************************/
83file		: { yydebug = PARSE_DEBUG; } newlines map_sections
84		| { yydebug = PARSE_DEBUG; } map_sections
85		;
86
87newlines	: NEWLINE
88		| NEWLINE newlines
89		;
90
91map_sections	: map_section
92		| map_section map_sections
93		;
94
95map_section	: sec_header kv_pairs
96		;
97
98sec_header	: LEFT_BRACKET NONWS_STRING RIGHT_BRACKET NEWLINE
99		{
100		  if (yydebug)
101		    fprintf(stderr, "sec_header1 = \"%s\"\n", $2);
102		  header_section = $2;
103		}
104		;
105
106kv_pairs	: kv_pair
107		| kv_pair kv_pairs
108		;
109
110kv_pair		: NONWS_STRING EQUAL NONWS_STRING NEWLINE
111		{
112		  if (yydebug)
113		    fprintf(stderr,"parse1: key=\"%s\", val=\"%s\"\n", $1, $3);
114		  retval = set_conf_kv(header_section, $1, $3);
115		  if (retval != 0) {
116		    yyerror("syntax error");
117		    YYABORT;
118		  }
119		}
120		| NONWS_STRING EQUAL NONWSEQ_STRING NEWLINE
121		{
122		  if (yydebug)
123		    fprintf(stderr,"parse2: key=\"%s\", val=\"%s\"\n", $1, $3);
124		  retval = set_conf_kv(header_section, $1, $3);
125		  if (retval != 0) {
126		    yyerror("syntax error");
127		    YYABORT;
128		  }
129		}
130		| NONWS_STRING EQUAL QUOTED_NONWSEQ_STRING NEWLINE
131		{
132		  if (yydebug)
133		    fprintf(stderr,"parse3: key=\"%s\", val=\"%s\"\n", $1, $3);
134		  retval = set_conf_kv(header_section, $1, $3);
135		  if (retval != 0) {
136		    yyerror("syntax error");
137		    YYABORT;
138		  }
139		}
140		| NEWLINE
141		;
142
143/****************************************************************************/
144%%
145
146static int
147yyerror(const char *s)
148{
149  fprintf(stderr, "AMDCONF: %s on line %d (section %s)\n",
150	  s, ayylineno,
151	  (header_section ? header_section : "null"));
152  exit(1);
153  return 1;	/* to full compilers that insist on a return statement */
154}
155