001/* ======================================================================== 002 * JCommon : a free general purpose class library for the Java(tm) platform 003 * ======================================================================== 004 * 005 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors. 006 * 007 * Project Info: http://www.jfree.org/jcommon/index.html 008 * 009 * This library is free software; you can redistribute it and/or modify it 010 * under the terms of the GNU Lesser General Public License as published by 011 * the Free Software Foundation; either version 2.1 of the License, or 012 * (at your option) any later version. 013 * 014 * This library is distributed in the hope that it will be useful, but 015 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 016 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 017 * License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this library; if not, write to the Free Software 021 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 022 * USA. 023 * 024 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 025 * in the United States and other countries.] 026 * 027 * ---------------- 028 * StringUtils.java 029 * ---------------- 030 * (C)opyright 2003, 2004, by Thomas Morgner and Contributors. 031 * 032 * Original Author: Thomas Morgner; 033 * Contributor(s): David Gilbert (for Object Refinery Limited); 034 * 035 * $Id: StringUtils.java,v 1.5 2005/10/18 13:24:19 mungady Exp $ 036 * 037 * Changes 038 * ------------------------- 039 * 21.06.2003 : Initial version 040 * 041 */ 042 043package org.jfree.util; 044 045/** 046 * String utilities. 047 * 048 * @author Thomas Morgner. 049 */ 050public class StringUtils { 051 052 /** 053 * Private constructor prevents object creation. 054 */ 055 private StringUtils() { 056 } 057 058 /** 059 * Helper functions to query a strings start portion. The comparison is case insensitive. 060 * 061 * @param base the base string. 062 * @param start the starting text. 063 * 064 * @return true, if the string starts with the given starting text. 065 */ 066 public static boolean startsWithIgnoreCase(final String base, final String start) { 067 if (base.length() < start.length()) { 068 return false; 069 } 070 return base.regionMatches(true, 0, start, 0, start.length()); 071 } 072 073 /** 074 * Helper functions to query a strings end portion. The comparison is case insensitive. 075 * 076 * @param base the base string. 077 * @param end the ending text. 078 * 079 * @return true, if the string ends with the given ending text. 080 */ 081 public static boolean endsWithIgnoreCase(final String base, final String end) { 082 if (base.length() < end.length()) { 083 return false; 084 } 085 return base.regionMatches(true, base.length() - end.length(), end, 0, end.length()); 086 } 087 088 /** 089 * Queries the system properties for the line separator. If access 090 * to the System properties is forbidden, the UNIX default is returned. 091 * 092 * @return the line separator. 093 */ 094 public static String getLineSeparator() { 095 try { 096 return System.getProperty("line.separator", "\n"); 097 } 098 catch (Exception e) { 099 return "\n"; 100 } 101 } 102 103 104}