/*
*
* 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;
import com.itextpdf.tool.xml.parser.state.*;
/**
* Switches the current state in the {@link XMLParser}.
* @author redlab_b
*
*/
public class StateController {
private final State unknown;
private final State tagEncountered;
private final State tagAttributes;
private final State inTag;
private final State attrValue;
private final State singleQuoted;
private final State doubleQuoted;
private final State selfClosing;
private final State specialChar;
private final State closingTag;
private final State comment;
private final State closeComment;
private final State cdata;
private final State xml;
private final State doctype;
private final State unquoted;
private final State processingInstruction;
private final XMLParser parser;
private State currentState;
private State previousState;
private State starComment;
private State closeStarComment;
/**
* Constructs a StateController with the given parser.
* @param parser the Parser
* @param isHTML true if this parser is going to parse HTML, this results in different whitespace handling.
*/
public StateController(final XMLParser parser, boolean isHTML) {
this.parser = parser;
unknown = new UnknownState(parser);
tagEncountered = new TagEncounteredState(parser);
tagAttributes = new TagAttributeState(parser);
inTag = (isHTML)?new InsideTagHTMLState(parser):new InsideTagState(parser);
attrValue = new AttributeValueState(parser);
singleQuoted = new SingleQuotedAttrValueState(parser);
doubleQuoted = new DoubleQuotedAttrValueState(parser);
selfClosing = new SelfClosingTagState(parser);
specialChar = new SpecialCharState(parser);
closingTag = new ClosingTagState(parser);
comment = new CommentState(parser);
closeComment = new CloseCommentState(parser);
cdata = new CdataState(parser);
xml = new XmlState(parser);
doctype = new DocTypeState(parser);
unquoted = new UnquotedAttrState(parser);
processingInstruction = new ProcessingInstructionEncounteredState(parser);
previousState = null;
currentState = null;
starComment = new StarCommentState(parser);
closeStarComment = new CloseStarCommentState(parser);
}
/**
* Changes the state.
* @param state the state to set as current state.
* @return the Parser
*/
public XMLParser setState(final State state) {
previousState = currentState;
currentState = state;
parser.setState(state);
return parser;
}
/**
* Changes the state to the previous one.
* @return Parser
*/
public XMLParser previousState() {
parser.setState(previousState);
State temp = currentState;
currentState = previousState;
previousState = temp;
return parser;
}
/**
* set Parser state to {@link UnknownState}.
* @return Parser
*/
public XMLParser unknown() {
return setState(unknown);
}
/**
* set Parser state to {@link TagEncounteredState}.
* @return Parser
*/
public XMLParser tagEncountered() {
return setState(tagEncountered);
}
/**
* set Parser state to {@link TagAttributeState}.
* @return Parser
*/
public XMLParser tagAttributes() {
return setState(tagAttributes);
}
/**
* set Parser state to {@link InsideTagState}.
* @return Parser
*/
public XMLParser inTag() {
return setState(inTag);
}
/**
* set Parser state to {@link AttributeValueState}.
* @return Parser
*/
public XMLParser attributeValue() {
return setState(attrValue);
}
/**
* set Parser state to {@link SingleQuotedAttrValueState}.
* @return Parser
*/
public XMLParser singleQuotedAttr() {
return setState(singleQuoted);
}
/**
* set Parser state to {@link DoubleQuotedAttrValueState}.
* @return Parser
*/
public XMLParser doubleQuotedAttr() {
return setState(doubleQuoted);
}
/**
* set Parser state to {@link ProcessingInstructionEncounteredState}.
* @return Parser
*/
public XMLParser processingInstructions() {
return setState(processingInstruction);
}
/**
* set Parser state to {@link SelfClosingTagState}.
* @return Parser
*/
public XMLParser selfClosing() {
return setState(selfClosing);
}
/**
*set Parser state to {@link SpecialCharState}.
* @return Parser
*/
public XMLParser specialChar() {
return setState(this.specialChar);
}
/**
* set Parser state to {@link ClosingTagState}.
* @return Parser
*/
public XMLParser closingTag() {
return setState(this.closingTag);
}
/**
* set Parser state to {@link CommentState}.
* @return Parser
*/
public XMLParser comment() {
return setState(this.comment);
}
/**
* set Parser state to {@link CloseCommentState}.
* @return Parser
*/
public XMLParser closeComment() {
return setState(closeComment);
}
/**
* set Parser state to {@link CdataState}.
* @return Parser
*/
public XMLParser cdata() {
return setState(cdata);
}
/**
* set Parser state to {@link DocTypeState}.
* @return Parser
*/
public XMLParser doctype() {
return setState(doctype);
}
/**
* set Parser state to {@link UnquotedAttrState}.
* @return Parser
*
*/
public XMLParser unquotedAttr() {
return setState(unquoted);
}
/**
* set Parser state to {@link StarCommentState}.
* @return Parser
*/
public XMLParser starComment() {
return setState(this.starComment);
}
/**
* set Parser state to {@link CloseStarCommentState}.
* @return Parser
*/
public XMLParser closeStarComment() {
return setState(this.closeStarComment);
}
}