package org.apache.maven.doxia.module.xhtml;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
import javax.swing.text.html.HTML.Attribute;
import org.apache.maven.doxia.macro.MacroExecutionException;
import org.apache.maven.doxia.parser.Parser;
import org.apache.maven.doxia.parser.XhtmlBaseParser;
import org.apache.maven.doxia.sink.Sink;
import org.apache.maven.doxia.sink.SinkEventAttributeSet;
import org.codehaus.plexus.component.annotations.Component;
import org.codehaus.plexus.util.xml.pull.XmlPullParser;
import org.codehaus.plexus.util.xml.pull.XmlPullParserException;
/**
* Parse an xhtml model and emit events into a Doxia Sink.
*
* @author <a href="mailto:jason@maven.org">Jason van Zyl</a>
* @version $Id: XhtmlParser.java 1572532 2014-02-27 12:21:40Z stephenc $
* @since 1.0
*/
@Component( role = Parser.class, hint = "xhtml" )
public class XhtmlParser
extends XhtmlBaseParser
implements XhtmlMarkup
{
/** For boxed verbatim. */
private boolean boxed;
/** Empty elements don't write a closing tag. */
private boolean isEmptyElement;
/** {@inheritDoc} */
protected void handleStartTag( XmlPullParser parser, Sink sink )
throws XmlPullParserException, MacroExecutionException
{
isEmptyElement = parser.isEmptyElementTag();
SinkEventAttributeSet attribs = getAttributesFromParser( parser );
if ( parser.getName().equals( HTML.toString() ) )
{
//Do nothing
return;
}
else if ( parser.getName().equals( HEAD.toString() ) )
{
sink.head( attribs );
}
else if ( parser.getName().equals( TITLE.toString() ) )
{
sink.title( attribs );
}
else if ( parser.getName().equals( META.toString() ) )
{
String name = parser.getAttributeValue( null, Attribute.NAME.toString() );
String content = parser.getAttributeValue( null, Attribute.CONTENT.toString() );
if ( "author".equals( name ) )
{
sink.author( null );
sink.text( content );
sink.author_();
}
else if ( "date".equals( name ) )
{
sink.date( null );
sink.text( content );
sink.date_();
}
else
{
sink.unknown( "meta", new Object[] { Integer.valueOf( TAG_TYPE_SIMPLE ) }, attribs );
}
}
/*
* The ADDRESS element may be used by authors to supply contact information
* for a model or a major part of a model such as a form. This element
* often appears at the beginning or end of a model.
*/
else if ( parser.getName().equals( ADDRESS.toString() ) )
{
sink.author( attribs );
}
else if ( parser.getName().equals( BODY.toString() ) )
{
sink.body( attribs );
}
else if ( parser.getName().equals( DIV.toString() ) )
{
String divclass = parser.getAttributeValue( null, Attribute.CLASS.toString() );
if ( "source".equals( divclass ) )
{
this.boxed = true;
}
baseStartTag( parser, sink ); // pick up other divs
}
/*
* The PRE element tells visual user agents that the enclosed text is
* "preformatted". When handling preformatted text, visual user agents:
* - May leave white space intact.
* - May render text with a fixed-pitch font.
* - May disable automatic word wrap.
* - Must not disable bidirectional processing.
* Non-visual user agents are not required to respect extra white space
* in the content of a PRE element.
*/
else if ( parser.getName().equals( PRE.toString() ) )
{
if ( boxed )
{
attribs.addAttributes( SinkEventAttributeSet.BOXED );
}
verbatim();
sink.verbatim( attribs );
}
else if ( !baseStartTag( parser, sink ) )
{
if ( isEmptyElement )
{
handleUnknown( parser, sink, TAG_TYPE_SIMPLE );
}
else
{
handleUnknown( parser, sink, TAG_TYPE_START );
}
if ( getLog().isDebugEnabled() )
{
String position = "[" + parser.getLineNumber() + ":"
+ parser.getColumnNumber() + "]";
String tag = "<" + parser.getName() + ">";
getLog().debug( "Unrecognized xhtml tag: " + tag + " at " + position );
}
}
}
/** {@inheritDoc} */
protected void handleEndTag( XmlPullParser parser, Sink sink )
throws XmlPullParserException, MacroExecutionException
{
if ( parser.getName().equals( HTML.toString() ) )
{
//Do nothing
return;
}
else if ( parser.getName().equals( HEAD.toString() ) )
{
sink.head_();
}
else if ( parser.getName().equals( TITLE.toString() ) )
{
sink.title_();
}
else if ( parser.getName().equals( BODY.toString() ) )
{
consecutiveSections( 0, sink );
sink.body_();
}
else if ( parser.getName().equals( ADDRESS.toString() ) )
{
sink.author_();
}
else if ( parser.getName().equals( DIV.toString() ) )
{
this.boxed = false;
baseEndTag( parser, sink );
}
else if ( !baseEndTag( parser, sink ) )
{
if ( !isEmptyElement )
{
handleUnknown( parser, sink, TAG_TYPE_END );
}
}
isEmptyElement = false;
}
/** {@inheritDoc} */
protected void init()
{
super.init();
this.boxed = false;
this.isEmptyElement = false;
}
}