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Re: [xsl] node() function

2014-06-23 22:06:43
On Mon, Jun 23, 2014 at 5:01 PM, Abel Braaksma (Exselt)
abel(_at_)exselt(_dot_)net 
<xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com> wrote:
Mailing Lists Mail daktapaal(_at_)gmail(_dot_)com
<mailto:xsl-list-service(_at_)lists(_dot_)mulberrytech(_dot_)com>
maandag 23 juni 2014 22:17


<xsl:template match="node()|@*">
<xsl:apply-templates/>
</xsl:template>

The expression "node()" is not a function, it is a node-test, similar to
"foo" (tests for an element with the name 'foo') or "comment()" (tests for
comment nodes). The template is matched when _any_ node is found. Since
inside the body of the template you only have an xsl:apply-templates and the
only template in existence is that very template, the stylesheet as a whole
will not output anything: a so-called "delete-template".

To explain this:

All nodes are matched and processed by the same template above.
Whenever a text node is matched, the <xsl:apply-templates/>
instruction selects 0 (zero) nodes, because by definition a text-node
doesn't have any children.

This is where the processing cannot continue and when all text nodes
are matched, the transformation ends.

A shorter "delete-all" template is, of course this:

  <xsl:template match="node()"/>

or even shorter:

  <xsl:template match="/"/>




-- 
Cheers,
Dimitre Novatchev
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Truly great madness cannot be achieved without significant intelligence.
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To invent, you need a good imagination and a pile of junk
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Never fight an inanimate object
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To avoid situations in which you might make mistakes may be the
biggest mistake of all
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Quality means doing it right when no one is looking.
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You've achieved success in your field when you don't know whether what
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I finally figured out the only reason to be alive is to enjoy it.
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