Re: [xsl] [XSLT 1.0] Q: recursively eliminate empty nodes

["G. Ken Holman" <gkholman@xxxxxxxxxxxxxxxxxxxx>]

At 2010-11-08 20:15 +0100, Hermann Stamm-Wilbrandt wrote:
> on the input file x.xml I posted your solutions produce the same output.
>
> As Ken asked for more inputs I tried adding a comment and then
> the output of your solutions and the recursive solution differ:

Of course they would differ ... you haven't described the 
requirements and we volunteers are just guessing.

> $ cat d.xml
> <a><b>c<c/></b><b><c/><!--test--></b></a>
> $
> $ xsltproc d1.xsl d.xml
> <?xml version="1.0" encoding="UTF-8"?>
> <a><b>c</b></a>
> $
> $ xsltproc d2.xsl d.xml
> <?xml version="1.0" encoding="UTF-8"?>
> <a><b>c</b></a>
> $
> $ xsltproc y.xsl d.xml
> <?xml version="1.0"?>
> <a><b>c</b><b><!--test--></b></a>
> $
>
> I have to ask the originator of the problem for the exact requirements.

Good ... it will stop the guessing.

For now the XSLT 1.0 solution below will check for empty elements 
with your new stipulation.

I hope this helps.

. . . . . . Ken

~/t/ftemp $ cat hermann2.xml
<a><b>c<c/></b><b><c/><!--test--></b></a>
~/t/ftemp $ xslt hermann2.xml hermann.xsl
<?xml version="1.0" 
encoding="utf-8"?><a><b>c</b><b><!--test--></b></a>~/t/ftemp $ cat hermann.xsl
<?xml version="1.0" encoding="US-ASCII"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
                version="1.0">

<xsl:template match="*[not(.//text() | .//comment() |
                           .//processing-instruction())]"/>

<xsl:template match="@*|node()"><!--identity for all other nodes-->
  <xsl:copy>
    <xsl:apply-templates select="@*|node()"/>
  </xsl:copy>
</xsl:template>

</xsl:stylesheet>
~/t/ftemp $


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