mDNSShared/dnsextd_lexer.l

   1 /* -*- Mode: C; tab-width: 4 -*-
   2  *
   3  * Copyright (c) 2006 Apple Computer, Inc. All rights reserved.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *     http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 %{
  19 #include <string.h>
  20 #include <stdio.h>
  21 #include "dnsextd_parser.h"
  22
  23
  24 extern YYSTYPE yylval;
  25
  26 /* Mac OS X 10.4 has flex version 2.5.4, which doesn't define yylineno for us */
  27 /* Mac OS X 10.5 has flex version 2.5.33, which does define yylineno          */
  28 #if YY_FLEX_MAJOR_VERSION <= 2 && YY_FLEX_MINOR_VERSION <= 5 && YY_FLEX_SUBMINOR_VERSION <= 4
  29 int yylineno = 1;
  30 #endif
  31
  32 int  yylex(void);
  33
  34 static char*
  35 StripQuotes
  36         (
  37         const char * string
  38         )
  39 {
  40         char * dup;
  41
  42         dup = strdup( string + 1);
  43
  44         dup[ strlen( dup ) - 1 ] = '\0';
  45
  46         return dup;
  47 }
  48
  49
  50 %}
  51
  52 %option nounput
  53 %%
  54
  55 options                                                         return OPTIONS;
  56 listen-on                                                       return LISTEN_ON;
  57 nameserver                                                      return NAMESERVER;
  58 port                                                            return PORT;
  59 address                                                         return ADDRESS;
  60 llq                                                                     return LLQ;
  61 public                                                          return PUBLIC;
  62 private                                                         return PRIVATE;
  63 key                                                                     return KEY;
  64 allow-update                                            return ALLOWUPDATE;
  65 allow-query                                                     return ALLOWQUERY;
  66 algorithm                                                       return ALGORITHM;
  67 secret                                                          return SECRET;
  68 zone                                            return ZONE;
  69 type                                            return TYPE;
  70 allow                                                           return ALLOW;
  71 \{                                              return OBRACE;
  72 \}                                              return EBRACE;
  73 ;                                               return SEMICOLON;
  74 IN                                                                      return IN;
  75 \*                                                                      yylval.string = strdup(yytext); return WILDCARD;
  76 [0-9]+\.[0-9]+\.[0-9]+\.[0-9]+          yylval.string = strdup(yytext); return DOTTED_DECIMAL_ADDRESS;
  77 [0123456789]+                                           yylval.number = atoi(yytext);   return NUMBER;
  78 [a-zA-Z0-9]+(\.[a-zA-Z0-9]+)*           yylval.string = strdup(yytext); return HOSTNAME;
  79 [a-zA-Z0-9\.]+([a-zA-Z0-9\.]+)*         yylval.string = strdup(yytext); return DOMAINNAME;
  80 \"([^"\\\r\n]*(\\.[^"\\\r\n]*)*)\"      yylval.string = StripQuotes(yytext);    return QUOTEDSTRING;
  81 [\/][\/].*                                                      /* ignore C++ style comments */;
  82 \n                                              yylineno++; /* ignore EOL */;
  83 [ \t]+                                          /* ignore whitespace */;
  84 %%