io.ultreia.java4all.jaxx.widgets.HtmlHighlighter Maven / Gradle / Ivy

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package io.ultreia.java4all.jaxx.widgets;

/*-
 * #%L
 * JAXX :: Widgets
 * %%
 * Copyright (C) 2008 - 2024 Code Lutin, Ultreia.io
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, 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 Lesser Public License for more details.
 *
 * You should have received a copy of the GNU General Lesser Public
 * License along with this program.  If not, see
 * .
 * #L%
 */

import java.util.regex.Pattern;

public class HtmlHighlighter {
    private static final String HighLightTemplate = "$1";

    public static String highlightText(String text, String textToHighlight, String suffixText) {
        if (textToHighlight == null) {
            return null;
        }
        if (textToHighlight.length() == 0) {
            return text + (suffixText == null ? "" : suffixText);
        }

        try {
            text = text.replaceAll("(?i)(" + Pattern.quote(textToHighlight) + ")", HighLightTemplate);
        } catch (Exception e) {
            return text;
        }
        if (suffixText != null) {
            text += suffixText;
        }
        return "" + text + "";
    }
}