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Variance between XSLT engines when outputting HTML with a namespace
- To: xsl-list at lists dot mulberrytech dot com
- Subject: [xsl] Variance between XSLT engines when outputting HTML with a namespace
- From: Jarno dot Elovirta at nokia dot com
- Date: Thu, 6 Sep 2001 07:15:25 +0300
- Reply-To: xsl-list at lists dot mulberrytech dot com
Hip hei!
Say we have
<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns="http://www.w3.org/TR/REC-html40";>
<xsl:output method="html"
indent="yes"
encoding="ISO-8859-1" />
<xsl:template match="/">
<html>
<head>
<title/>
</head>
<body>
<p>
<br/>
</p>
</body>
</html>
</xsl:template>
</xsl:stylesheet>
The "HTML 4.01 namespace" shouldn't be there as there are no namespaces in
SGML, but J. Clark used it in "Namespaces in XML" [1] and I've seen people
use it. Anyhow, the XSLT 1.0/1.1 says
"The html output method should not output an element differently from the
xml output method unless the expanded-name of the element has a null
namespace URI; an element whose expanded-name has a non-null namespace URI
should be output as XML. If the expanded-name of the element has a null
namespace URI, but the local part of the expanded-name is not recognized as
the name of an HTML element, the element should output in the same way as a
non-empty, inline element such as span.
The html output method should not output an end-tag for empty elements. For
HTML 4.0, the empty elements are area, base, basefont, br, col, frame, hr,
img, input, isindex, link, meta and param. For example, an element written
as <br/> or <br></br> in the stylesheet should be output as <br>." [2]
Here's what the XSLT processors on my computer did:
output NS omit end-tag
jd.xslt 1.1 no yes
XT 19991105 yes yes
Xalan-J 2.2.D10 yes no
MSXML 3 yes no
SAXON 6.4.3 yes yes
Oracle-J 9.0.2.0.0A Beta yes yes
If I've interpreted the spec correctly, Xalan and MSXML are right. Right?
Jarno
[1] http://www.w3.org/TR/REC-xml-names/
[2] http://www.w3.org/TR/xslt#section-HTML-Output-Method
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