WHY? external XHTML DOCTYPE included in transformed/serialized document

Ijonas Kisselbach 16 Jul 2004 09:50:10 -0000

Hi,

I’ve got an xhtml document with a DOCTYPE and valid namespace defined:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<head>

<title>PRUEBA Home Page</title>

…

….

</html>

When I parse this document into a w3c DOM and then immediately transform/serialize the document back to String representation I get the following output:

<?xml version="1.0" encoding="UTF-8"?>

<!--

Extensible HTML version 1.0 Transitional DTD

This is the same as HTML 4 Transitional except for

changes due to the differences between XML and SGML.

Namespace = http://www.w3.org/1999/xhtml

For further information, see: http://www.w3.org/TR/xhtml1

This DTD module is identified by the PUBLIC and SYSTEM identifiers:

PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"

SYSTEM "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"

$Revision: 1.2 $

$Date: 2002/08/01 18:37:55 $

--><!-- Portions (C) International Organization for Standardization 1986

…..

between groups of table rows.

-->

<head>

….

</html>

It seems Xalan 2.6.0 is downloading the external DTD and rendering it in-place during the transformation/serialization. Is there anyway to turn this feature off ? I’ve tried setting the DocumentBuilderFactory to “non-validating” but that had no effect. I’ve tried Java 1.4.2.03 and Java 1.4.2.05 and both behave identical.

Here are the code fragments used:

// to read original document from ByteArrayInputStream

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

dbf.setExpandEntityReferences(false);

dbf.setValidating(false);

DocumentBuilder db = dbf.newDocumentBuilder();

Document doc = db.parse(tbais);

// to transform to String which includes in-place DTD

StringWriter sw = new StringWriter();

DOMSource domSource = new DOMSource(doc);

TransformerFactory transformerFactory = getFactory();

Transformer transformer = transformerFactory.newTransformer();

transformer.transform(domSource, new StreamResult(sw));

Thanks in advance for any help or advice,

Ijonas Kisselbach.

WHY? external XHTML DOCTYPE included in transformed/serialized document

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