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HtmlOutputter |
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/* ** Luxor - XML User Interface Language (XUL) Toolkit ** Copyright (c) 2001, 2002 by Gerald Bauer ** ** This program is free software. ** ** You may redistribute it and/or modify it under the terms of the GNU ** General Public License as published by the Free Software Foundation. ** Version 2 of the license should be included with this distribution in ** the file LICENSE, as well as License.html. If the license is not ** included with this distribution, you may find a copy at the FSF web ** site at 'www.gnu.org' or 'www.fsf.org', or you may write to the ** Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139 USA. ** ** THIS SOFTWARE IS PROVIDED AS-IS WITHOUT WARRANTY OF ANY KIND, ** NOT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY. THE AUTHOR ** OF THIS SOFTWARE, ASSUMES _NO_ RESPONSIBILITY FOR ANY ** CONSEQUENCE RESULTING FROM THE USE, MODIFICATION, OR ** REDISTRIBUTION OF THIS SOFTWARE. ** */ package luxor.util; import java.io.*; import java.util.*; import org.jdom.*; import luxor.core.*; public class HtmlOutputter { /** * convenience method for outputContent; returns String directly */ public static String getContent( List content ) { try { StringWriter buf = new StringWriter(); outputContent( content, buf ); return buf.toString(); } catch( IOException ioex ) { Xul.error( "failed to get element's content: " + ioex.toString() ); return ""; } } /** * print out an element's content only, not including its tag and * attributes. */ public static void outputContent( List content, Writer out ) throws IOException { // Loop over content/children Iterator it = content.iterator(); while( it.hasNext() ) { Object obj = it.next(); // See if text, an element, a PI or a comment if( obj instanceof Comment ) continue; // ignore comments else if( obj instanceof String ) out.write( ( String ) obj ); else if( obj instanceof Element ) outputElement( ( Element ) obj, out ); else if( obj instanceof EntityRef ) continue; // not supported yet else if( obj instanceof ProcessingInstruction ) continue; // not supported yet else if( obj instanceof CDATA ) continue; // not supported yet } // Unsupported types are *not* printed, nor should they exist } private static void outputAttributes( List attributes, Writer out ) throws IOException { Iterator it = attributes.iterator(); while( it.hasNext() ) { Attribute attribute = ( Attribute ) it.next(); out.write( " " ); out.write( attribute.getName() ); out.write( "=" ); // fix: add support for entities (aka escapce sequences) out.write( "\"" ); out.write( attribute.getValue() ); out.write( "\"" ); } } private static void outputElement( Element element, Writer out ) throws IOException { String name = element.getName(); out.write( "<" + name ); outputAttributes( element.getAttributes(), out ); out.write( ">" ); outputContent( element.getContent(), out ); // convert xhtml to html // - we don't want a closing tag for hr, br, etc. if( name.equals( "hr" ) || name.equals( "br" ) ) return; out.write( "</" + name + ">" ); } }
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HtmlOutputter |
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