RE: sorting by attribute + element vs attribute

["Pawson, David" <DPawson at rnib dot org dot uk>]

Steve Muench 

>How about:
>
><wrapper xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
>xsl:version="1.0">
>  <xsl:for-each select="sender/a">
>    <xsl:sort select="@clli"/>
>    <a><xsl:value-of select="@clli"/></a>
>    <b><xsl:value-of select="@b"/></b>
>  </xsl:for-each>
></wrapper>
>  
>This produces:
>
><wrapper><a>100</a><b>10</b><a>200</a><b>20</b></wrapper>

Thanks Steve.

I knew the current context changed within for-each,
I made the wrong assumption that is also changed
(to the attribute) within the sort, which I had not
written as an empty element.
===============
I keep tripping up over 'attribute vs element content'
problems. I.e. when to use the empty element, when
to have it contain something; hence my amazement
at Davids use of variable last week.

Am I right in thinking this is one of XSLT's more 
subtle aspects, left to the user to work out?

Regards, DaveP


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