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 47 extern char *yytext; 48 extern int ayylineno; 49 extern int yylex(void); 50 51 static int yyerror(const char *s); 52 static int retval; 53 static 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 { 70 char *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 /****************************************************************************/ 83 file : { yydebug = PARSE_DEBUG; } newlines map_sections 84 | { yydebug = PARSE_DEBUG; } map_sections 85 ; 86 87 newlines : NEWLINE 88 | NEWLINE newlines 89 ; 90 91 map_sections : map_section 92 | map_section map_sections 93 ; 94 95 map_section : sec_header kv_pairs 96 ; 97 98 sec_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 ; 105 106 kv_pairs : kv_pair 107 | kv_pair kv_pairs 108 ; 109 110 kv_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 %% 145 146 static int 147 yyerror(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