I've used this approach myself to help determine when a new element 
has been added or someone starts using an element I've not seen used.

In this case I was in a when clause and I was trying to capture 
various combinations of markup errors.

<xsl:when 
test="ancestor::ipb/figure/subfig/graphic[@boardno=$sht_num]/@boardno">

So I was trying to understand what value this particular test would 
return so I could trap it.

In this case it was originally used like this and the function was 
indicating an empty or null value was being returned, so I was trying 
to match on that empty value.

unparsed-entity-uri(ancestor::ipb/figure/subfig/graphic[@boardno=$sht_num]/@boardno)

In this case I probably should have rearranged the when and otherwise 
tests and matched the good value and let the otherwise handled 
everything else. ultimately I also realized there was no value in 
doing this elaborate matching as the result is the same as the $sht_num.

thanks everyone

..dan

At 01:13 PM 10/4/2009, you wrote:
>At 2009-10-04 09:09 -0400, Dan Vint wrote:
>>One other thought on this. The reason it is important to know if I 
>>don't have a match is that there should always be a match and it is 
>>important to report this state.
>
>Wouldn't this be satisfied with the following using priority?
>
>   <xsl:template match="node()|@*" priority="-1">
>     <xsl:message>Not handled: .....
>
>... or even better using importance:
>
>   <xsl:import href="debug.xsl"/>
>
>   debug.xsl:
>   <xsl:template match="node()|@*">
>     <xsl:message>Not handled: .....
>
>I have this in most of my stylesheets ... I put this lowest 
>importance imported template into my import tree so as not to 
>interfere with my other template rules and to tell me what isn't 
>being handled by my code.
>
>Such a template rule overrides the built-in template rules and is 
>less important than all of my own template rules, so it catches what 
>I don't catch in my other template rules.
>
>I hope this helps.
>
>. . . . . . . . . . Ken
>
>
>--
>Upcoming: hands-on code list, UBL, XSLT, XQuery and XSL-FO classes
>in Copenhagen Denmark and Washington DC USA, October/November 2009
>Interested in other classes?  http://www.CraneSoftwrights.com/s/i/
>Crane Softwrights Ltd.          http://www.CraneSoftwrights.com/s/
>Training tools: Comprehensive interactive XSLT/XPath 1.0/2.0 video
>Video lesson:    http://www.youtube.com/watch?v=PrNjJCh7Ppg&fmt=18
>Video overview:  http://www.youtube.com/watch?v=VTiodiij6gE&fmt=18
>G. Ken Holman                 mailto:gkholman@C...
>Male Cancer Awareness Nov'07  http://www.CraneSoftwrights.com/s/bc
>Legal business disclaimers:  http://www.CraneSoftwrights.com/legal
>
>
>--~------------------------------------------------------------------
>XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
>To unsubscribe, go to: http://lists.mulberrytech.com/xsl-list/
>or e-mail: <mailto:xsl-list-unsubscribe@l...>
>--~--
>

---------------------------------------------------------------------------
Danny Vint

Panoramic Photography
http://www.dvint.com

voice: 502-749-6179
     


--~------------------------------------------------------------------
XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
To unsubscribe, go to: http://lists.mulberrytech.com/xsl-list/
or e-mail: <mailto:xsl-list-unsubscribe@l...>
--~--