/*
*
* This file is part of the iText (R) project.
Copyright (c) 1998-2017 iText Group NV
* Authors: Balder Van Camp, Emiel Ackermann, 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.tool.xml.parser.state;
import com.itextpdf.tool.xml.parser.State;
import com.itextpdf.tool.xml.parser.XMLParser;
/**
* @author redlab_b
*
*/
public class TagEncounteredState implements State {
private final XMLParser parser;
/**
* @param parser the XMLParser
*/
public TagEncounteredState(final XMLParser parser) {
this.parser = parser;
}
/*
* (non-Javadoc)
*
* @see com.itextpdf.tool.xml.parser.State#process(int)
*/
public void process(final char character) {
String tag = this.parser.bufferToString();
if (Character.isWhitespace(character) || character == '>' || character == '/' || character == ':' || character == '?' || tag.equals("!--") || tag.equals("![CDATA") && character == '[') {
// cope with <? xml and <! DOCTYPE
if (tag.length() > 0) {
if (tag.equals("!--")) {
this.parser.flush();
this.parser.memory().comment().setLength(0);
parser.selectState().comment();
// if else structure added to check for the presence of an empty comment without a space <!---->
// if this check isn't included it would add the third dash to the stringbuilder of XmlParser and
// not to memory().comment() which caused CloseCommentState to keep adding the rest of the document
// as a comment because it checked the closing tag on the length, which would be 1 in this case
// (the fourth dash)
if ( character != '-' ) {
this.parser.append(character);
} else {
this.parser.memory().comment().append(character);
}
} else if (tag.equals("![CDATA") && character == '[') {
this.parser.flush();
parser.selectState().cdata();
} else if (tag.equals("!DOCTYPE")) {
this.parser.flush();
parser.selectState().doctype();
this.parser.append(character);
} else if (Character.isWhitespace(character)) {
this.parser.memory().currentTag(this.parser.bufferToString());
this.parser.flush();
this.parser.selectState().tagAttributes();
} else if (character == '>') {
this.parser.memory().currentTag(tag);
this.parser.flush();
this.parser.startElement();
this.parser.selectState().inTag();
} else if (character == '/') {
this.parser.memory().currentTag(tag);
this.parser.flush();
this.parser.selectState().selfClosing();
} else if (character == ':') {
this.parser.memory().namespace(tag);
this.parser.flush();
}
} else {
if (character == '/') {
this.parser.selectState().closingTag();
} else if (character == '?') {
this.parser.append(character);
this.parser.selectState().processingInstructions();
}
}
} else {
this.parser.append(character);
}
}
}