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Re: null stylesheet?

Subject: Re: null stylesheet?
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxx>
Date: Thu, 1 May 2014 14:40:03 -0000
Re:  null stylesheet?
Hi Jack,

Yes, what you are describing is a "literal result element as
stylesheet". It is effectively shorthand for an XSLT stylesheet with a
single template rule, matching the root node.


<html xmlns:xsl="http://www.w3.org/1999/XSL/Transform"   xsl:version="2.0">
... do your thing ...

to an XSLT processor, when provided as a stylesheet, is the same as

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

  <xsl:template match="/">
    <html> ... do your thing ... </html>


This was (one imagines) meant to be a convenience, but it's not used
much TMK. (I may have used it ... once?) This is probably because,
with only one template, such a stylesheet can never execute more than
a simple "pull"; as soon as you need another template you have to
build it out. It may also be at least as confusing to the newcomer as
it is useful. (Namespaces anyone?)

Cheers, Wendell

On Wed, Apr 30, 2014 at 11:10 PM, Kulas, Jack <Jkulas@xxxxxxxxxx> wrote:
> A most timely thread for me.  I just encountered the "simplified
stylesheet."  I ran into it in the first design-pattern example of Chapter 17,
"Stylesheet Design Patterns," in Michael's "XSLT2.0 and XP2ath 2.0, 4th ed."
(BTW, when can we expect the XSLT 3.0 book?]
> The stylesheet there starts with
>         <html xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
> and has no xsl:stylsheet element.  It was strange to see instances of XSLT
elements xsl:for-each  and xsl: value-of in that stylesheet without the
xs:stylesheet element as the outermost element.  I since learned that as long
as the XSLT namespace is declared and there is an xsl:version attribute in its
outermost element, which can't be in the XSLT namespace, it's an XSLT
> Thus the following also counts as an XSLT stylesheet:
>         <html xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
> --Jack Kulas
> LSI, Inc
> Jacksonvlle, FL
> -----Original Message-----
> From: Michael Kay [mailto:mike@xxxxxxxxxxxx]
>> and that works perfectly well. But then I tried the slightly simpler
>>  <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>> version="1.0"/>
> Yes, that's a legal stylesheet.
>> But Saxon-HE run from the commandline complains that "The
>> supplied file does not appear to be a stylesheet"
>> (this is an error, not a warning; # XTSE0150).
> I suspect you got the command line arguments wrong. This message from Saxon
means that the file supplied as the stylesheet document did not have
xsl:stylesheet or xsl:transform as its root. In fact more specifically I think
it means the local name of the root element was not "stylesheet" or
"transform" - you get a different message if only the namespace is wrong.
> Michael Kay
> Saxonica
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Wendell Piez | http://www.wendellpiez.com
XML | XSLT | electronic publishing
Eat Your Vegetables

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