001/* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-present, by David Gilbert and Contributors.
006 *
007 * Project Info:  http://www.jfree.org/jfreechart/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 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
025 * Other names may be trademarks of their respective owners.]
026 *
027 * ----------------
028 * StringUtils.java
029 * ----------------
030 * (C) Copyright 2000-present, by David Gilbert and Contributors.
031 *
032 * Original Author:  David Gilbert;
033 * Contributors:     -;
034 */
035
036package org.jfree.chart.util;
037
038/**
039 * String utilities.
040 */
041public class StringUtils {
042
043    /**
044     * Private constructor prevents object creation. 
045     */
046    private StringUtils() {
047    }
048
049    /**
050     * Helper functions to query a strings start portion. The comparison is case insensitive.
051     *
052     * @param base  the base string.
053     * @param start  the starting text.
054     *
055     * @return true, if the string starts with the given starting text.
056     */
057    public static boolean startsWithIgnoreCase(String base, String start) {
058        if (base.length() < start.length()) {
059            return false;
060        }
061        return base.regionMatches(true, 0, start, 0, start.length());
062    }
063
064    /**
065     * Helper functions to query a strings end portion. The comparison is case insensitive.
066     *
067     * @param base  the base string.
068     * @param end  the ending text.
069     *
070     * @return true, if the string ends with the given ending text.
071     */
072    public static boolean endsWithIgnoreCase(String base, String end) {
073        if (base.length() < end.length()) {
074            return false;
075        }
076        return base.regionMatches(true, base.length() - end.length(), end, 0, end.length());
077    }
078
079    /**
080     * Queries the system properties for the line separator. If access
081     * to the System properties is forbidden, the UNIX default is returned.
082     *
083     * @return the line separator.
084     */
085    public static String getLineSeparator() {
086        try {
087            return System.getProperty("line.separator", "\n");
088        }
089        catch (Exception e) {
090            return "\n";
091        }
092    }
093
094
095}