Source for org.jfree.util.StringUtils

   1: /* ========================================================================
   2:  * JCommon : a free general purpose class library for the Java(tm) platform
   3:  * ========================================================================
   4:  *
   5:  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
   6:  * 
   7:  * Project Info:  http://www.jfree.org/jcommon/index.html
   8:  *
   9:  * This library is free software; you can redistribute it and/or modify it 
  10:  * under the terms of the GNU Lesser General Public License as published by 
  11:  * the Free Software Foundation; either version 2.1 of the License, or 
  12:  * (at your option) any later version.
  13:  *
  14:  * This library is distributed in the hope that it will be useful, but 
  15:  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
  16:  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 
  17:  * License for more details.
  18:  *
  19:  * You should have received a copy of the GNU Lesser General Public
  20:  * License along with this library; if not, write to the Free Software
  21:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
  22:  * USA.  
  23:  *
  24:  * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
  25:  * in the United States and other countries.]
  26:  * 
  27:  * ----------------
  28:  * StringUtils.java
  29:  * ----------------
  30:  * (C)opyright 2003, 2004, by Thomas Morgner and Contributors.
  31:  *
  32:  * Original Author:  Thomas Morgner;
  33:  * Contributor(s):   David Gilbert (for Object Refinery Limited);
  34:  *
  35:  * $Id: StringUtils.java,v 1.5 2005/10/18 13:24:19 mungady Exp $
  36:  *
  37:  * Changes
  38:  * -------------------------
  39:  * 21.06.2003 : Initial version
  40:  *
  41:  */
  42: 
  43: package org.jfree.util;
  44: 
  45: /**
  46:  * String utilities.
  47:  * 
  48:  * @author Thomas Morgner.
  49:  */
  50: public class StringUtils {
  51: 
  52:     /**
  53:      * Private constructor prevents object creation. 
  54:      */
  55:     private StringUtils() {
  56:     }
  57: 
  58:     /**
  59:      * Helper functions to query a strings start portion. The comparison is case insensitive.
  60:      *
  61:      * @param base  the base string.
  62:      * @param start  the starting text.
  63:      *
  64:      * @return true, if the string starts with the given starting text.
  65:      */
  66:     public static boolean startsWithIgnoreCase(final String base, final String start) {
  67:         if (base.length() < start.length()) {
  68:             return false;
  69:         }
  70:         return base.regionMatches(true, 0, start, 0, start.length());
  71:     }
  72: 
  73:     /**
  74:      * Helper functions to query a strings end portion. The comparison is case insensitive.
  75:      *
  76:      * @param base  the base string.
  77:      * @param end  the ending text.
  78:      *
  79:      * @return true, if the string ends with the given ending text.
  80:      */
  81:     public static boolean endsWithIgnoreCase(final String base, final String end) {
  82:         if (base.length() < end.length()) {
  83:             return false;
  84:         }
  85:         return base.regionMatches(true, base.length() - end.length(), end, 0, end.length());
  86:     }
  87: 
  88:     /**
  89:      * Queries the system properties for the line separator. If access
  90:      * to the System properties is forbidden, the UNIX default is returned.
  91:      *
  92:      * @return the line separator.
  93:      */
  94:     public static String getLineSeparator() {
  95:         try {
  96:             return System.getProperty("line.separator", "\n");
  97:         }
  98:         catch (Exception e) {
  99:             return "\n";
 100:         }
 101:     }
 102: 
 103: 
 104: }