/**
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.exoplatform.services.chars;


import java.util.ArrayList;
import java.util.List;

/**
 *  Author : Nhu Dinh Thuan
 *          Email:nhudinhthuan@yahoo.com
 * Aug 17, 2006
 */
public class StringTokenizer
{

   private char[] regexes, addRegexes;

   public StringTokenizer(char[] reg, char[] addReg)
   {
      this.regexes = reg;
      this.addRegexes = addReg;
   }

   public List<String> split(String text)
   {
      List<String> list = new ArrayList<String>();
      int start = 0;
      int idx = 0;
      TypeRegex check;
      char c;
      while (idx < text.length())
      {
         c = text.charAt(idx);
         check = isSplitChar(c);
         if (check == TypeRegex.ADD_REGEX)
         {
            if (start < idx)
               add(text.substring(start, idx), list);
            add(String.valueOf(c), list);
            start = idx + 1;
         }
         else if (check == TypeRegex.REGEX)
         {
            add(text.substring(start, idx), list);
            start = idx + 1;
         }
         idx++;
      }
      if (start < text.length())
      {
         add(text.substring(start, text.length()), list);
      }
      return list;
   }

   private void add(String value, List<String> list)
   {
      value = value.trim();
      if (value.length() < 1)
         return;
      list.add(value);
   }

   private TypeRegex isSplitChar(char c)
   {
      for (char e : regexes)
         if (e == c)
            return TypeRegex.ADD_REGEX;
      for (char e : addRegexes)
         if (e == c)
            return TypeRegex.REGEX;
      return TypeRegex.NOT_REGEX;
   }

   public enum TypeRegex {
      ADD_REGEX, NOT_REGEX, REGEX;
   }

   /*public static void main(String[] args) {
     SplitString split = new SplitString(
         new char[]{'\"', '\'', }, new char[]{' ','\t', '\b', '\f', '\r'});
     String text = " input name=\"hu  query\" size=15 maxlength=\"30\" style=\"width: 80px;\" type=\"text\' ";
     List<String> values = split.split(text);

     System.out.println("Mang la : ");

     if(values.size() > 0)  System.out.print("{ \"");
     for(int i = 0; i<values.size()-1 ; i++)
       System.out.print(values.get(i) +"\", \"");

     if(values.size() > 1) System.out.print(values.get(values.size()-1) +"\" }");
   }
   */

}
