itextpdf.jar is a component in iText 5 Java library to provide core functionalities. iText Java library allows you to generate and manage PDF documents.

The Source Code files are provided at iText GitHub site.

You can compile it to generate your JAR file, using pom.xml as the build configuration file.

The source code of itextpdf-5.5.14.jar is provided below:

⏎ com/itextpdf/text/html/HtmlEncoder.java

/*
 *
 * This file is part of the iText (R) project.
    Copyright (c) 1998-2020 iText Group NV
 * Authors: Bruno Lowagie, Paulo Soares, et al.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License version 3
 * as published by the Free Software Foundation with the addition of the
 * following permission added to Section 15 as permitted in Section 7(a):
 * FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
 * ITEXT GROUP. ITEXT GROUP DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
 * OF THIRD PARTY RIGHTS
 *
 * 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 Affero General Public License for more details.
 * You should have received a copy of the GNU Affero General Public License
 * along with this program; if not, see http://www.gnu.org/licenses or write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA, 02110-1301 USA, or download the license from the following URL:
 * http://itextpdf.com/terms-of-use/
 *
 * The interactive user interfaces in modified source and object code versions
 * of this program must display Appropriate Legal Notices, as required under
 * Section 5 of the GNU Affero General Public License.
 *
 * In accordance with Section 7(b) of the GNU Affero General Public License,
 * a covered work must retain the producer line in every PDF that is created
 * or manipulated using iText.
 *
 * You can be released from the requirements of the license by purchasing
 * a commercial license. Buying such a license is mandatory as soon as you
 * develop commercial activities involving the iText software without
 * disclosing the source code of your own applications.
 * These activities include: offering paid services to customers as an ASP,
 * serving PDFs on the fly in a web application, shipping iText with a closed
 * source product.
 *
 * For more information, please contact iText Software Corp. at this
 * address: sales@itextpdf.com
 */
package com.itextpdf.text.html;

import java.util.HashSet;
import java.util.Set;

import com.itextpdf.text.Element;
import com.itextpdf.text.BaseColor;

/**
 * This class converts a <CODE>String</CODE> to the HTML-format of a String.
 * <P>
 * To convert the <CODE>String</CODE>, each character is examined:
 * <UL>
 * <LI>ASCII-characters from 000 till 031 are represented as &amp;#xxx;<BR>
 *     (with xxx = the value of the character)
 * <LI>ASCII-characters from 032 t/m 127 are represented by the character itself, except for:
 *     <UL>
 *     <LI>'\n'	becomes &lt;BR&gt;\n
 *     <LI>&quot; becomes &amp;quot;
 *     <LI>&amp; becomes &amp;amp;
 *     <LI>&lt; becomes &amp;lt;
 *     <LI>&gt; becomes &amp;gt;
 *     </UL>
 * <LI>ASCII-characters from 128 till 255 are represented as &amp;#xxx;<BR>
 *     (with xxx = the value of the character)
 * </UL>
 * <P>
 * Example:
 * <P><BLOCKQUOTE><PRE>
 *    String htmlPresentation = HtmlEncoder.encode("Marie-Th&#233;r&#232;se S&#248;rensen");
 * </PRE></BLOCKQUOTE><P>
 * for more info: see O'Reilly; "HTML: The Definitive Guide" (page 164)
 *
 * @deprecated since 5.5.2
 */
@Deprecated
public final class HtmlEncoder {
    
	/**
	 * This class will never be constructed.
	 */
	private HtmlEncoder() {
	}
	
    // membervariables
    /**
     * List with the HTML translation of all the characters.
     * @since 5.0.6 (renamed from htmlCode)
     */
    private static final String[] HTML_CODE = new String[256];
    
    static {
        for (int i = 0; i < 10; i++) {
            HTML_CODE[i] = "&#00" + i + ";";
        }
        
        for (int i = 10; i < 32; i++) {
            HTML_CODE[i] = "&#0" + i + ";";
        }
        
        for (int i = 32; i < 128; i++) {
            HTML_CODE[i] = String.valueOf((char)i);
        }
        
        // Special characters
        HTML_CODE['\t'] = "\t";
        HTML_CODE['\n'] = "<br />\n";
        HTML_CODE['\"'] = "&quot;"; // double quote
        HTML_CODE['&'] = "&amp;"; // ampersand
        HTML_CODE['<'] = "&lt;"; // lower than
        HTML_CODE['>'] = "&gt;"; // greater than
        
        for (int i = 128; i < 256; i++) {
            HTML_CODE[i] = "&#" + i + ";";
        }
    }
    
    // methods
    
    /**
     * Converts a <CODE>String</CODE> to the HTML-format of this <CODE>String</CODE>.
     *
     * @param	string	The <CODE>String</CODE> to convert
     * @return	a <CODE>String</CODE>
     */
    public static String encode(String string) {
        int n = string.length();
        char character;
        StringBuffer buffer = new StringBuffer();
        // loop over all the characters of the String.
        for (int i = 0; i < n; i++) {
            character = string.charAt(i);
            // the Htmlcode of these characters are added to a StringBuffer one by one
            if (character < 256) {
                buffer.append(HTML_CODE[character]);
            }
            else {
                // Improvement posted by Joachim Eyrich
                buffer.append("&#").append((int)character).append(';');
            }
        }
        return buffer.toString();
    }
    
    /**
     * Converts a <CODE>BaseColor</CODE> into a HTML representation of this <CODE>BaseColor</CODE>.
     *
     * @param	color	the <CODE>BaseColor</CODE> that has to be converted.
     * @return	the HTML representation of this <COLOR>BaseColor</COLOR>
     */
    public static String encode(BaseColor color) {
        StringBuffer buffer = new StringBuffer("#");
        if (color.getRed() < 16) {
            buffer.append('0');
        }
        buffer.append(Integer.toString(color.getRed(), 16));
        if (color.getGreen() < 16) {
            buffer.append('0');
        }
        buffer.append(Integer.toString(color.getGreen(), 16));
        if (color.getBlue() < 16) {
            buffer.append('0');
        }
        buffer.append(Integer.toString(color.getBlue(), 16));
        return buffer.toString();
    }

    /**
     * Translates the alignment value.
     *
     * @param   alignment   the alignment value
     * @return  the translated value
     */
    public static String getAlignment(int alignment) {
        switch(alignment) {
            case Element.ALIGN_LEFT:
                return HtmlTags.ALIGN_LEFT;
            case Element.ALIGN_CENTER:
                return HtmlTags.ALIGN_CENTER;
            case Element.ALIGN_RIGHT:
                return HtmlTags.ALIGN_RIGHT;
            case Element.ALIGN_JUSTIFIED:
            case Element.ALIGN_JUSTIFIED_ALL:
                return HtmlTags.ALIGN_JUSTIFY;
            case Element.ALIGN_TOP:
                return HtmlTags.ALIGN_TOP;
            case Element.ALIGN_MIDDLE:
                return HtmlTags.ALIGN_MIDDLE;
            case Element.ALIGN_BOTTOM:
                return HtmlTags.ALIGN_BOTTOM;
            case Element.ALIGN_BASELINE:
                return HtmlTags.ALIGN_BASELINE;
                default:
                    return "";
        }
    }
    
	/**
	 * Set containing tags that trigger a new line.
	 * @since iText 5.0.6
	 */
	private static final Set<String> NEWLINETAGS = new HashSet<String>();
	static {
		// Following list are the basic html tags that force new lines
		// List may be extended as we discover them
		NEWLINETAGS.add(HtmlTags.P);
		NEWLINETAGS.add(HtmlTags.BLOCKQUOTE);
		NEWLINETAGS.add(HtmlTags.BR);
	}	
	
	/**
	 * Returns true if the tag causes a new line like p, br etc.
	 * @since iText 5.0.6
	 */
	public static boolean isNewLineTag(String tag) {
		return NEWLINETAGS.contains(tag);
	}
}

⏎ com/itextpdf/text/html/HtmlEncoder.java

Or download all of them as a single archive file:

File name: itextpdf-5.5.14-fyi.zip
File size: 2163839 bytes
Release date: 2009-10-09
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