| 1 | %{
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| 2 | /*
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| 3 | * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
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| 4 | * (Royal Institute of Technology, Stockholm, Sweden).
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| 5 | * All rights reserved.
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| 6 | *
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| 7 | * Redistribution and use in source and binary forms, with or without
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| 8 | * modification, are permitted provided that the following conditions
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| 9 | * are met:
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| 10 | *
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| 11 | * 1. Redistributions of source code must retain the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer.
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| 13 | *
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| 14 | * 2. Redistributions in binary form must reproduce the above copyright
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| 15 | * notice, this list of conditions and the following disclaimer in the
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| 16 | * documentation and/or other materials provided with the distribution.
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| 17 | *
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| 18 | * 3. Neither the name of the Institute nor the names of its contributors
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| 19 | * may be used to endorse or promote products derived from this software
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| 20 | * without specific prior written permission.
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| 21 | *
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| 22 | * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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| 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 32 | * SUCH DAMAGE.
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| 33 | */
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| 34 |
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| 35 | /* $Id$ */
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| 36 |
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| 37 | #ifdef HAVE_CONFIG_H
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| 38 | #include <config.h>
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| 39 | #endif
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| 40 | #include <stdio.h>
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| 41 | #include <stdarg.h>
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| 42 | #include <stdlib.h>
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| 43 | #include <string.h>
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| 44 | #ifdef HAVE_UNISTD_H
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| 45 | #include <unistd.h>
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| 46 | #endif
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| 47 | #undef ECHO
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| 48 | #include "symbol.h"
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| 49 | #include "asn1parse.h"
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| 50 | #include "lex.h"
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| 51 | #include "gen_locl.h"
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| 52 |
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| 53 | static unsigned lineno = 1;
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| 54 |
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| 55 | #undef ECHO
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| 56 |
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| 57 | static void unterminated(const char *, unsigned);
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| 58 |
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| 59 | %}
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| 60 |
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| 61 | /* This is for broken old lexes (solaris 10 and hpux) */
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| 62 | %e 2000
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| 63 | %p 5000
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| 64 | %a 5000
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| 65 | %n 1000
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| 66 | %o 10000
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| 67 |
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| 68 | %%
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| 69 | ABSENT { return kw_ABSENT; }
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| 70 | ABSTRACT-SYNTAX { return kw_ABSTRACT_SYNTAX; }
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| 71 | ALL { return kw_ALL; }
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| 72 | APPLICATION { return kw_APPLICATION; }
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| 73 | AUTOMATIC { return kw_AUTOMATIC; }
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| 74 | BEGIN { return kw_BEGIN; }
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| 75 | BIT { return kw_BIT; }
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| 76 | BMPString { return kw_BMPString; }
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| 77 | BOOLEAN { return kw_BOOLEAN; }
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| 78 | BY { return kw_BY; }
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| 79 | CHARACTER { return kw_CHARACTER; }
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| 80 | CHOICE { return kw_CHOICE; }
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| 81 | CLASS { return kw_CLASS; }
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| 82 | COMPONENT { return kw_COMPONENT; }
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| 83 | COMPONENTS { return kw_COMPONENTS; }
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| 84 | CONSTRAINED { return kw_CONSTRAINED; }
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| 85 | CONTAINING { return kw_CONTAINING; }
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| 86 | DEFAULT { return kw_DEFAULT; }
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| 87 | DEFINITIONS { return kw_DEFINITIONS; }
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| 88 | EMBEDDED { return kw_EMBEDDED; }
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| 89 | ENCODED { return kw_ENCODED; }
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| 90 | END { return kw_END; }
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| 91 | ENUMERATED { return kw_ENUMERATED; }
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| 92 | EXCEPT { return kw_EXCEPT; }
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| 93 | EXPLICIT { return kw_EXPLICIT; }
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| 94 | EXPORTS { return kw_EXPORTS; }
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| 95 | EXTENSIBILITY { return kw_EXTENSIBILITY; }
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| 96 | EXTERNAL { return kw_EXTERNAL; }
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| 97 | FALSE { return kw_FALSE; }
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| 98 | FROM { return kw_FROM; }
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| 99 | GeneralString { return kw_GeneralString; }
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| 100 | GeneralizedTime { return kw_GeneralizedTime; }
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| 101 | GraphicString { return kw_GraphicString; }
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| 102 | IA5String { return kw_IA5String; }
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| 103 | IDENTIFIER { return kw_IDENTIFIER; }
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| 104 | IMPLICIT { return kw_IMPLICIT; }
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| 105 | IMPLIED { return kw_IMPLIED; }
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| 106 | IMPORTS { return kw_IMPORTS; }
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| 107 | INCLUDES { return kw_INCLUDES; }
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| 108 | INSTANCE { return kw_INSTANCE; }
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| 109 | INTEGER { return kw_INTEGER; }
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| 110 | INTERSECTION { return kw_INTERSECTION; }
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| 111 | ISO646String { return kw_ISO646String; }
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| 112 | MAX { return kw_MAX; }
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| 113 | MIN { return kw_MIN; }
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| 114 | MINUS-INFINITY { return kw_MINUS_INFINITY; }
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| 115 | NULL { return kw_NULL; }
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| 116 | NumericString { return kw_NumericString; }
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| 117 | OBJECT { return kw_OBJECT; }
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| 118 | OCTET { return kw_OCTET; }
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| 119 | OF { return kw_OF; }
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| 120 | OPTIONAL { return kw_OPTIONAL; }
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| 121 | ObjectDescriptor { return kw_ObjectDescriptor; }
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| 122 | PATTERN { return kw_PATTERN; }
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| 123 | PDV { return kw_PDV; }
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| 124 | PLUS-INFINITY { return kw_PLUS_INFINITY; }
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| 125 | PRESENT { return kw_PRESENT; }
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| 126 | PRIVATE { return kw_PRIVATE; }
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| 127 | PrintableString { return kw_PrintableString; }
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| 128 | REAL { return kw_REAL; }
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| 129 | RELATIVE_OID { return kw_RELATIVE_OID; }
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| 130 | SEQUENCE { return kw_SEQUENCE; }
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| 131 | SET { return kw_SET; }
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| 132 | SIZE { return kw_SIZE; }
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| 133 | STRING { return kw_STRING; }
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| 134 | SYNTAX { return kw_SYNTAX; }
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| 135 | T61String { return kw_T61String; }
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| 136 | TAGS { return kw_TAGS; }
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| 137 | TRUE { return kw_TRUE; }
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| 138 | TYPE-IDENTIFIER { return kw_TYPE_IDENTIFIER; }
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| 139 | TeletexString { return kw_TeletexString; }
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| 140 | UNION { return kw_UNION; }
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| 141 | UNIQUE { return kw_UNIQUE; }
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| 142 | UNIVERSAL { return kw_UNIVERSAL; }
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| 143 | UTCTime { return kw_UTCTime; }
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| 144 | UTF8String { return kw_UTF8String; }
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| 145 | UniversalString { return kw_UniversalString; }
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| 146 | VideotexString { return kw_VideotexString; }
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| 147 | VisibleString { return kw_VisibleString; }
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| 148 | WITH { return kw_WITH; }
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| 149 | [-,;{}()|] { return *yytext; }
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| 150 | "[" { return *yytext; }
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| 151 | "]" { return *yytext; }
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| 152 | ::= { return EEQUAL; }
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| 153 | -- {
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| 154 | int c, start_lineno = lineno;
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| 155 | int f = 0;
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| 156 | while((c = input()) != EOF) {
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| 157 | if(f && c == '-')
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| 158 | break;
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| 159 | if(c == '-') {
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| 160 | f = 1;
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| 161 | continue;
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| 162 | }
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| 163 | if(c == '\n') {
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| 164 | lineno++;
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| 165 | break;
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| 166 | }
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| 167 | f = 0;
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| 168 | }
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| 169 | if(c == EOF)
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| 170 | unterminated("comment", start_lineno);
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| 171 | }
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| 172 | \/\* {
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| 173 | int c, start_lineno = lineno;
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| 174 | int level = 1;
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| 175 | int seen_star = 0;
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| 176 | int seen_slash = 0;
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| 177 | while((c = input()) != EOF) {
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| 178 | if(c == '/') {
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| 179 | if(seen_star) {
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| 180 | if(--level == 0)
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| 181 | break;
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| 182 | seen_star = 0;
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| 183 | continue;
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| 184 | }
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| 185 | seen_slash = 1;
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| 186 | continue;
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| 187 | }
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| 188 | if(seen_star && c == '/') {
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| 189 | if(--level == 0)
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| 190 | break;
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| 191 | seen_star = 0;
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| 192 | continue;
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| 193 | }
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| 194 | if(c == '*') {
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| 195 | if(seen_slash) {
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| 196 | level++;
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| 197 | seen_star = seen_slash = 0;
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| 198 | continue;
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| 199 | }
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| 200 | seen_star = 1;
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| 201 | continue;
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| 202 | }
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| 203 | seen_star = seen_slash = 0;
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| 204 | if(c == '\n') {
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| 205 | lineno++;
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| 206 | continue;
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| 207 | }
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| 208 | }
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| 209 | if(c == EOF)
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| 210 | unterminated("comment", start_lineno);
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| 211 | }
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| 212 | "\"" {
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| 213 | int start_lineno = lineno;
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| 214 | int c;
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| 215 | char buf[1024];
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| 216 | char *p = buf;
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| 217 | int f = 0;
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| 218 | int skip_ws = 0;
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| 219 |
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| 220 | while((c = input()) != EOF) {
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| 221 | if(isspace(c) && skip_ws) {
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| 222 | if(c == '\n')
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| 223 | lineno++;
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| 224 | continue;
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| 225 | }
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| 226 | skip_ws = 0;
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| 227 |
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| 228 | if(c == '"') {
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| 229 | if(f) {
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| 230 | *p++ = '"';
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| 231 | f = 0;
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| 232 | } else
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| 233 | f = 1;
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| 234 | continue;
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| 235 | }
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| 236 | if(f == 1) {
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| 237 | unput(c);
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| 238 | break;
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| 239 | }
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| 240 | if(c == '\n') {
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| 241 | lineno++;
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| 242 | while(p > buf && isspace((unsigned char)p[-1]))
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| 243 | p--;
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| 244 | skip_ws = 1;
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| 245 | continue;
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| 246 | }
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| 247 | *p++ = c;
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| 248 | }
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| 249 | if(c == EOF)
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| 250 | unterminated("string", start_lineno);
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| 251 | *p++ = '\0';
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| 252 | fprintf(stderr, "string -- %s\n", buf);
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| 253 | yylval.name = estrdup(buf);
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| 254 | return STRING;
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| 255 | }
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| 256 |
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| 257 | -?0x[0-9A-Fa-f]+|-?[0-9]+ { char *e, *y = yytext;
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| 258 | yylval.constant = strtol((const char *)yytext,
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| 259 | &e, 0);
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| 260 | if(e == y)
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| 261 | lex_error_message("malformed constant (%s)", yytext);
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| 262 | else
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| 263 | return NUMBER;
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| 264 | }
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| 265 | [A-Za-z][-A-Za-z0-9_]* {
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| 266 | yylval.name = estrdup ((const char *)yytext);
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| 267 | return IDENTIFIER;
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| 268 | }
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| 269 | [ \t] ;
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| 270 | \n { ++lineno; }
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| 271 | \.\.\. { return ELLIPSIS; }
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| 272 | \.\. { return RANGE; }
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| 273 | . { lex_error_message("Ignoring char(%c)\n", *yytext); }
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| 274 | %%
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| 275 |
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| 276 | #ifndef yywrap /* XXX */
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| 277 | int
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| 278 | yywrap ()
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| 279 | {
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| 280 | return 1;
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| 281 | }
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| 282 | #endif
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| 283 |
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| 284 | void
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| 285 | lex_error_message (const char *format, ...)
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| 286 | {
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| 287 | va_list args;
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| 288 |
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| 289 | va_start (args, format);
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| 290 | fprintf (stderr, "%s:%d: ", get_filename(), lineno);
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| 291 | vfprintf (stderr, format, args);
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| 292 | va_end (args);
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| 293 | error_flag++;
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| 294 | }
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| 295 |
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| 296 | static void
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| 297 | unterminated(const char *type, unsigned start_lineno)
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| 298 | {
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| 299 | lex_error_message("unterminated %s, possibly started on line %d\n", type, start_lineno);
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| 300 | }
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