src/main/java/irc/StringParser.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
   8 /*         All contacts : theplouf@yahoo.com         */\r
   9 /*                                                   */\r
  10 /*  PJIRC is free software; you can redistribute     */\r
  11 /*  it and/or modify it under the terms of the GNU   */\r
  12 /*  General Public License as published by the       */\r
  13 /*  Free Software Foundation; version 2 or later of  */\r
  14 /*  the License.                                     */\r
  15 /*                                                   */\r
  16 /*  PJIRC is distributed in the hope that it will    */\r
  17 /*  be useful, but WITHOUT ANY WARRANTY; without     */\r
  18 /*  even the implied warranty of MERCHANTABILITY or  */\r
  19 /*  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU   */\r
  20 /*  General Public License for more details.         */\r
  21 /*                                                   */\r
  22 /*  You should have received a copy of the GNU       */\r
  23 /*  General Public License along with PJIRC; if      */\r
  24 /*  not, write to the Free Software Foundation,      */\r
  25 /*  Inc., 59 Temple Place, Suite 330, Boston,        */\r
  26 /*  MA  02111-1307  USA                              */\r
  27 /*                                                   */\r
  28 /*****************************************************/\r
  29 \r
  30 package irc;\r
  31 \r
  32 import java.util.Vector;\r
  33 \r
  34 /**\r
  35  * String parser.\r
  36  */\r
  37 public class StringParser {\r
  38         /**\r
  39          * Trim the given string, without removing non-printable characters.\r
  40          * \r
  41          * @param t\r
  42          *          string to trim.\r
  43          * @return trimmed string.\r
  44          */\r
  45         public static String trim(String t) {\r
  46                 int a = 0;\r
  47                 while ((a < t.length()) && (t.charAt(a) == ' '))\r
  48                         a++;\r
  49                 if (a == t.length())\r
  50                         return "";\r
  51                 int b = t.length() - 1;\r
  52                 while ((b >= 0) && (t.charAt(b) == ' '))\r
  53                         b--;\r
  54                 if (b < 0)\r
  55                         return "";\r
  56                 return t.substring(a, b + 1);\r
  57         }\r
  58 \r
  59         private int indexOf(String s, char toFind) {\r
  60                 int deep = 0;\r
  61                 for (int i = 0; i < s.length(); i++) {\r
  62                         char c = s.charAt(i);\r
  63                         if ((deep == 0) && (c == toFind))\r
  64                                 return i;\r
  65                         if (c == '"')\r
  66                                 deep = 1 - deep;\r
  67                         if (c == '\'')\r
  68                                 deep = 1 - deep;\r
  69                 }\r
  70                 return -1;\r
  71         }\r
  72 \r
  73         /**\r
  74          * Parse the string.\r
  75          * \r
  76          * @param line\r
  77          *          string to parse.\r
  78          * @return arrays of strings.\r
  79          */\r
  80         public String[] parseString(String line) {\r
  81                 Vector res = new Vector();\r
  82                 while (line.length() != 0) {\r
  83                         int pos = indexOf(line, ' ');\r
  84                         if (pos == -1) {\r
  85                                 res.insertElementAt(line, res.size());\r
  86                                 line = "";\r
  87                         } else {\r
  88                                 String part = trim(line.substring(0, pos));\r
  89                                 line = trim(line.substring(pos));\r
  90                                 res.insertElementAt(part, res.size());\r
  91                         }\r
  92                 }\r
  93 \r
  94                 String[] param = new String[res.size()];\r
  95                 for (int i = 0; i < res.size(); i++)\r
  96                         param[i] = (String) res.elementAt(i);\r
  97                 return param;\r
  98 \r
  99         }\r
 100 \r
 101 }\r