    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
    043    package org.jfree.util;
    044
    045    /**
    046     * String utilities.
    047     *
    048     * @author Thomas Morgner.
    049     */
    050    public 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    }