mDNSShared/dnsextd_lexer.l

   1 /* -*- Mode: C; tab-width: 4 -*-
   2  *
   3  * Copyright (c) 2006-2011 Apple 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 #define YY_NO_INPUT 1
  27 int  yylex(void);
  28
  29 static char*
  30 StripQuotes
  31         (
  32         const char * string
  33         )
  34 {
  35         char * dup;
  36
  37         dup = strdup( string + 1);
  38
  39         dup[ strlen( dup ) - 1 ] = '\0';
  40
  41         return dup;
  42 }
  43
  44
  45 %}
  46
  47 %option nounput
  48 %%
  49
  50 options                                                         return OPTIONS;
  51 listen-on                                                       return LISTEN_ON;
  52 nameserver                                                      return NAMESERVER;
  53 port                                                            return PORT;
  54 address                                                         return ADDRESS;
  55 llq                                                                     return LLQ;
  56 public                                                          return PUBLIC;
  57 private                                                         return PRIVATE;
  58 key                                                                     return KEY;
  59 allow-update                                            return ALLOWUPDATE;
  60 allow-query                                                     return ALLOWQUERY;
  61 algorithm                                                       return ALGORITHM;
  62 secret                                                          return SECRET;
  63 zone                                            return ZONE;
  64 type                                            return TYPE;
  65 allow                                                           return ALLOW;
  66 \{                                              return OBRACE;
  67 \}                                              return EBRACE;
  68 ;                                               return SEMICOLON;
  69 IN                                                                      return IN;
  70 \*                                                                      yylval.string = strdup(yytext); return WILDCARD;
  71 [0-9]+\.[0-9]+\.[0-9]+\.[0-9]+          yylval.string = strdup(yytext); return DOTTED_DECIMAL_ADDRESS;
  72 [0123456789]+                                           yylval.number = atoi(yytext);   return NUMBER;
  73 [a-zA-Z0-9]+(\.[a-zA-Z0-9]+)*           yylval.string = strdup(yytext); return HOSTNAME;
  74 [a-zA-Z0-9\.]+([a-zA-Z0-9\.]+)*         yylval.string = strdup(yytext); return DOMAINNAME;
  75 \"([^"\\\r\n]*(\\.[^"\\\r\n]*)*)\"      yylval.string = StripQuotes(yytext);    return QUOTEDSTRING;
  76 [\/][\/].*                                                      /* ignore C++ style comments */;
  77 \n                                              yylineno++; /* ignore EOL */;
  78 [ \t]+                                          /* ignore whitespace */;
  79 %%