[XSLT] How to generate /*<![CDATA[*/ for XHTML style element?

Vincent Lefevre

I'd like to generate something like that:

<style type="text/css">/*<![CDATA[*/
body { }
*/]]></style>

I thought the following would work, but it doesn't (I tried with
xsltproc).

<?xml version="1.0"?>

<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns="http://www.w3.org/1999/xhtml">

<xsl:output method="xml"
encoding="iso-8859-1"
doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"
indent="yes"/>

<xsl:template match="/">
<html>
<head>
<title>.</title>
<style type="text/css">
<xsl:text disable-output-escaping="yes">/*<![CDATA[*/
body { }
/*]]>*/</xsl:text>
</style>
</head>
<body><p>.</p></body>
</html>
</xsl:template>

</xsl:stylesheet>

Any idea?

--
Vincent Lefèvre <vi*****@vinc17.org> - Web: <http://www.vinc17.org/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / SPACES project at LORIA

Jun 16 '06 #1

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Bjoern Hoehrmann

* Vincent Lefevre wrote in comp.text.xml:

I'd like to generate something like that:

<style type="text/css">/*<![CDATA[*/
body { }
*/]]></style>

This construct is useful only if the stylesheet contains "]]>", "&", or
"<" and you want both HTML tag soup and XML processors to successfully
process the document; if that is ever the case you should use external
style sheets instead, or, if possible, escape the characters using
\hhhhhh escapes instead.
--
Björn Höhrmann · mailto:bj****@hoehrmann.de · http://bjoern.hoehrmann.de
Weinh. Str. 22 · Telefon: +49(0)621/4309674 · http://www.bjoernsworld.de
68309 Mannheim · PGP Pub. KeyID: 0xA4357E78 · http://www.websitedev.de/

Jun 17 '06 #2

Vincent Lefevre

In article <hf********************************@hive.bjoern.ho ehrmann.de>,
Bjoern Hoehrmann <bj****@hoehrmann.de> wrote:

* Vincent Lefevre wrote in comp.text.xml:
I'd like to generate something like that:

<style type="text/css">/*<![CDATA[*/
body { }
*/]]></style>
This construct is useful only if the stylesheet contains "]]>", "&", or
"<" and you want both HTML tag soup and XML processors to successfully
process the document;
Or for better maintainability, e.g. if the styles are incomplete and
one wants to make sure not to forget to add this construct when the
styles get "&" or "<" characters in future modifications.
if that is ever the case you should use external style sheets
instead,
This is the best solution when the page is on a web server, but in
other cases, e.g. when one wants to distribute a HTML file by e-mail,
internal styles may be an easier solution.
or, if possible, escape the characters using \hhhhhh escapes
instead.

But this is less readable and also more prone to bugs when generating
styles from a programming language where \ is the escape character.

--
Vincent Lefèvre <vi*****@vinc17.org> - Web: <http://www.vinc17.org/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / SPACES project at LORIA

Jun 17 '06 #3

Joe Kesselman

You can tell XSLT that the text children of certain elements should be
escaped as CDATA Sections, via the cdata-section-elements attribute of
the xsl:output directive.

I agree that this is generally something you should avoid, but if the
customer/boss insists on it...

--
() ASCII Ribbon Campaign | Joe Kesselman
/\ Stamp out HTML e-mail! | System architexture and kinetic poetry

Jun 21 '06 #4

Bjoern Hoehrmann

* Joe Kesselman wrote in comp.text.xml:

You can tell XSLT that the text children of certain elements should be
escaped as CDATA Sections, via the cdata-section-elements attribute of
the xsl:output directive.

That would not work here as the CDATA section delimiters have to be
surrounded by /* ... */ comment delimiters.
--
Björn Höhrmann · mailto:bj****@hoehrmann.de · http://bjoern.hoehrmann.de
Weinh. Str. 22 · Telefon: +49(0)621/4309674 · http://www.bjoernsworld.de
68309 Mannheim · PGP Pub. KeyID: 0xA4357E78 · http://www.websitedev.de/

Jun 21 '06 #5

Andy Dingley

Bjoern Hoehrmann wrote:

That would not work here as the CDATA section delimiters have to be
surrounded by /* ... */ comment delimiters.

Why does <style> have to be a CDATA section anyway? (ignoring the
bogosity of the /* <![CDATA[ ... ]]> */ construction)

<script> has some arguments for it, in some particular circumstances,
but <style> doesn't.

Jun 21 '06 #6

Joe Kesselman

Bjoern Hoehrmann wrote:

That would not work here as the CDATA section delimiters have to be
surrounded by /* ... */ comment delimiters.

In that case, assembling it out of characters -- and outputting through
a path which suppresses normal XML escaping -- may indeed be the best
you can do. Or you can perform non-XML-based postprocessing to replace
the <![CDATA[]]> delimiters with their Javascript-commented-out equivalents.

The better answer remains: Don't Do That. The whole point of XHTML is
that it is XML-based, and that *should* mean you don't have to kluge
using <![CDATA[]]> and comments to make it accept scripts. If that isn't
true, beat up the browser authors until they fix their code.

--
() ASCII Ribbon Campaign | Joe Kesselman
/\ Stamp out HTML e-mail! | System architexture and kinetic poetry

Jun 22 '06 #7

Andy Dingley

Joe Kesselman wrote:

The better answer remains: Don't Do That. The whole point of XHTML is
that it is XML-based, and that *should* mean you don't have to kluge
using <![CDATA[]]> and comments to make it accept scripts.

It's no an XHTML problem, it's a problem for appendix C XHTML which is
being fed to SGML parsers and expected to work transparently as
_either_ XML or SGML, from the same document. The addition of the
comment markers is a particularly obsessive case. Hixie is obsessed
with this, no-one else really cares.

Jun 22 '06 #8

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[XSLT] How to generate /<![CDATA[/ for XHTML style element?

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