src/main/java/irc/style/URLRecognizer.java

   1 /*****************************************************/\r
   2 /*          This java file is a part of the          */\r
   3 /*                                                   */\r
   4 /*           -  Plouf's Java IRC Client  -           */\r
   5 /*                                                   */\r
   6 /*   Copyright (C)  2002 - 2004 Philippe Detournay   */\r
   7 /*                                                   */\r
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   9 /*                                                   */\r
  10 /*  PJIRC is free software; you can redistribute     */\r
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  12 /*  General Public License as published by the       */\r
  13 /*  Free Software Foundation; version 2 or later of  */\r
  14 /*  the License.                                     */\r
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  19 /*  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU   */\r
  20 /*  General Public License for more details.         */\r
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  27 /*                                                   */\r
  28 /*****************************************************/\r
  29 \r
  30 package irc.style;\r
  31 \r
  32 /**\r
  33  * The URLRecognizer.\r
  34  */\r
  35 public class URLRecognizer implements WordRecognizer {\r
  36         private boolean isAlpha(String s) {\r
  37                 s = s.toLowerCase(java.util.Locale.ENGLISH);\r
  38                 for (int i = 0; i < s.length(); i++)\r
  39                         if ((s.charAt(i) < 'a') || (s.charAt(i) > 'z'))\r
  40                                 return false;\r
  41                 return true;\r
  42         }\r
  43 \r
  44         @Override\r
  45         public boolean recognize(String word) {\r
  46                 if (word.startsWith("http://"))\r
  47                         return true;\r
  48                 if (word.startsWith("ftp://"))\r
  49                         return true;\r
  50                 if (word.startsWith("www."))\r
  51                         return true;\r
  52                 if (word.startsWith("ftp."))\r
  53                         return true;\r
  54                 int a = word.indexOf('.');\r
  55                 if (a == -1)\r
  56                         return false;\r
  57                 int b = word.lastIndexOf('.');\r
  58                 if (a == b)\r
  59                         return false;\r
  60                 String ext = word.substring(b + 1);\r
  61                 if (!isAlpha(ext))\r
  62                         return false;\r
  63                 if ((ext.length() == 2) || (ext.length() == 3))\r
  64                         return true;\r
  65                 return false;\r
  66         }\r
  67 \r
  68         @Override\r
  69         public String getType() {\r
  70                 return "url";\r
  71         }\r
  72 \r
  73 }\r