Re: [xsl] namespace aware template matching

[David Carlisle <davidc@xxxxxxxxx>]

> if so, is one any better/faster than the other?, or are they completely 
> different somehow?

they are different.

ancestor::ns:article[1] finds the nearest ancestor ns:article
ancestor::ns:*[1][self::article] finds the nearest ancestor ns:*
            element if it is an article, and nothing otherwise.

so if you have

<ns:article>
  <sadjfg>
     <ns:wibble>
       <lkjgh>
          <ns:id>

the ns:id element matches

ns:id[ancestor::ns:article[1]]

but not

ns:id[ancestor::ns:*[1][self::article]]

I understood from your description that you wanted the form that I gave,
but if you actually wanted the form that you gave, then use that
instead:-)

If that is the form you wanted, then possibly you may also be happy
with the much simpler form

match="ns:root//ns:article//ns:id"

which in some edge cases left as an excercise to the reader isn't
equivalent to either of the forms above, but may well address your real
use case.


David

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