conversationtext.java

网站即时通讯系统

/*
 Copyright (C) 2003 Adam Olsen

 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 1, or (at your option)
 any later version.

 This program 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 General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with this program; if not, write to the Free Software
 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

package com.valhalla.jbother;

/**
 * Replaces conversation text like URLS with links
 * 
 * @author Adam Olsen
 * @version 1.0
 */
public class ConversationText {
    /**
     * Replaces the text so it can better be displayed in the ConversationArea
     * 
     * @param text
     *            the text to replace
     * @param asHTML
     *            not used yet
     */
    public static String replaceText(String text, boolean asHTML,
            boolean emoticons) {
        text = " " + text + " ";

        if (!asHTML) {
            text = text.replaceAll("\\&", "&");
            text = text.replaceAll("\\<", "&lt;");
            text = text.replaceAll("\\>", "&gt;");
        }
        //else {*/
        // JEditorPane doesn't support XHTML so well, so get rid of end tags
        // that look like />
        //text = text.replaceAll( "\\/\\>", ">" );
        /* } */

        // replace _word_ with <u>_word_</u>
        text = text.replaceAll("(^| )(_[A-Za-z0-9]+_)(\\.|$| )",
                "$1<u>$2</u>$3");

        // replace /word/ with <i>/word/</i>
        text = text.replaceAll("(^| )(/[A-Za-z0-9]+/)(\\.|$| )",
                "$1<i>$2</i>$3");

        // replace *word* with <b>*word*</b>
        text = text.replaceAll("(^| )(\\*[A-Za-z0-9]+\\*)(\\.|$| )",
                "$1<b>$2</b>$3");

        // the below is done in ConversationArea directly (to provide emoticon
        // "portability", when, for example, JBother.jar file name changes)
        //// replace emoticon symbols
        //if (emoticons)
        //    text = Emoticons.getInstance().replaceIcons(text);

        // replace URLs and email addresses
        text = text
                .replaceAll(
                        "(\\s|^)((?!(ftp|http|https)://)[^\\s\"']+?@[^\\s\"']+?)(\\s|$)",
                        "$1<a href=\"mailto:$2\">$2</a>$4");
        text = text.replaceAll(
                "(^|\\s)((ftp|http|https)://[^\\s\"']+?)(\\s|$)",
                "$1<a href=\"$2\">$2</a>$4");

        text = text.replaceAll("  ", "&nbsp; ");
        text = text.replaceAll("\t", "&nbsp;&nbsp;&nbsp;&nbsp; ");

        return text;
    }

    public static String replaceText(String text, boolean asHTML) {
        return replaceText(text, asHTML, true);
    }
}