Re: [xsl] Looking Not Working for No Obvious Reason

["Eliot Kimber" <ekimber@xxxxxxxxxxxxxxxxxxx>]

David Carlisle wrote:
> > I must be doing something wrong but I can't figure out what it might 
> > be--the fact that some input values work and others don't is odd.
>
> usual cause of cause is user error, strings that look the same but
> aren't due to white space or whatever. Can you post an actual example
> that fails to match?

Input data is:

<title>Overview and Background</title>

The corresponding mapping entry is:

<item>
  <shorttitle>Background</shorttitle>
  <longtitle>Overview and Background</longtitle>
</item>

> > The real mapping is small enough I could rewrite the code to use 
> > choose/when for the mappings but this seemed like the most efficient way 
> > to do a two-way mapping in XSLT.
>
> Normaly I'd use a key for such lookups, which ought to be more efficient
> (or as efficient if   your optimizing xslt engine decided to make an
> internal key anyway)
>
> <xsl:key name="x" match="item" use="shorttitle"/>

Makes sense. I'll try that and see if the problem goes away.

> those two bits aren't needed (but perhaps documenting them is good form)
> as the default behaviour is to implictly make a document node (for xslt
> 1 compat, mainly) or maybe that's the cause of your lookup failures,
> perhaps sometimes you have got duplicated short titles?

Since I define the mapping, each value occurs exactly once. My failure 
condition is that my count check returns zero when it should return 1 
(as opposed to returning 2 when it should return 1).

Cheers,

Eliot

--
W. Eliot Kimber
Professional Services
Innodata Isogen
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(214) 954-5198

ekimber@xxxxxxxxxxxxxxxxxxx
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