content: package com.japisoft.editix.document.xslt;
  
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.InputStreamReader;
  import java.util.ArrayList;
  import java.util.HashMap;
  import java.util.List;
  import java.util.Map;
  
  import com.japisoft.framework.xml.parser.node.FPNode;
  import com.japisoft.xmlpad.editor.XMLPadDocument;
  import com.japisoft.xmlpad.helper.handler.AbstractHelperHandler;
  
  import com.japisoft.xmlpad.helper.model.AttDescriptor;
  import com.japisoft.xmlpad.helper.model.BasicDescriptor;
  import com.japisoft.xmlpad.helper.model.TagDescriptor;
  
  /**
  This program is available under two licenses : 
  
  1. For non commercial usage : 
  
  This program is free software: you can redistribute it and/or modify
  it under the terms of the GNU 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 Public License for more details.
  
  You should have received a copy of the GNU General Public License
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  
  2. For commercial usage :
  
  You need to get a commercial license for source usage at : 
  
  http://www.editix.com/buy.html
  
  Copyright (c) 2018 Alexandre Brillant - JAPISOFT SARL - http://www.japisoft.com
  
  @author Alexandre Brillant - abrillant@japisoft.com
  @author JAPISOFT SARL - http://www.japisoft.com
  
  */
  public class SaxonExtHandler extends AbstractHelperHandler {
  
  	static Map<String,List<String>> grammar = new HashMap<String,List<String>>();
  
  	static {		
  		InputStream input = SaxonExtHandler.class.getResourceAsStream( "saxon.grammar" );
  		InputStreamReader r = new InputStreamReader( input );
  		BufferedReader br = new BufferedReader( r );
  		try {
  			String l = null;
  			List<String> lst = null;
  			while ( ( l = br.readLine() ) != null ) {
  				if ( l.startsWith( "*" ) ) {
  					grammar.put( l.substring( 1 ), lst = new ArrayList<String>() );
  				} else
  					lst.add( l );
  			}
  		} catch( IOException exc ) {
  			
  		} finally {
  			try {
  				br.close();
  			} catch( Throwable th ) {
  			}
  		}
  	}
  
  	protected void installDescriptors( 
  			FPNode currentNode,
  			XMLPadDocument document, 
  			int offset,
  			String addedString ) {
  
  		boolean inTag = document.isInsideTag(offset);
  		
  		if ( "<".equals( addedString ) || ( addedString == null && !inTag ) ) {
  			// elements
  			List<String> lst = grammar.get( "elements" );
  			for ( String l : lst ) {
  				TagDescriptor td = new TagDescriptor( l, false );
  				td.setAddedPart( addedString );
  				addDescriptor( td );
  			}
  		} else {
  			
  			if ( document.isInsideAttributeValue( offset ) ) {
  				List<String> lst = grammar.get( "functions" );
  				for ( String l : lst ) {
  					addDescriptor( new BasicDescriptor( l ) );
  				}
  			} else
  				if ( inTag ) {
  					List<String> lst = grammar.get( "attributes" );
  					for ( String l : lst ) {
  						AttDescriptor ad = new AttDescriptor( l, null );
  						ad.setAddedPart( " " );
  						addDescriptor( ad );
  					}
  				}			
  		}
  		
  		
  		
  	}
  
  	protected String getActivatorSequence() {
  		return null;
  	}
  
  	private boolean isForSaxon( FPNode currentNode ) {
  		if ( "http://icl.com/saxon".equals( currentNode.getNameSpaceDeclarationURI( "saxon" ) ) )
  			return true;
  		if ( currentNode.getFPParent() != null ) {
  			return isForSaxon( currentNode.getFPParent() );
  		} else
  			return false;
  	}
  	
  	public boolean haveDescriptors(
  			FPNode currentNode,
  			XMLPadDocument document, 
  			boolean insertBefore, 
  			int offset,
  			String activatorString ) {
  
  		if ( currentNode == null )
  			return false;
  
  		return ( null == activatorString ) && isForSaxon( currentNode );
  	}
  
  	public String getTitle() {
  		return "Saxon extensions";
  	}
  
  	public int getPriority() {
  		return -1;
  	}
  
  }
  