Re: Changing case using translate()

Hi Andrew,

> The code
>
> TBD/business[contains(translate(*[local-name() = $param1],$lowercase,
> $uppercase),translate($param2, $lowercase, $uppercase)]
>
> works fine if there is only one child element of business, such as
> 'name'. However, each business node currently contains several
> <keyword> child nodes, that don't get picked up by the above. If I
> reduce the number of <keyword> nodes to one (for each business node)
> then it searches no problem.

Oh.

That's different then, but actually it's a problem to do with the
contains() rather than the translate() - the contains() forces the
first argument to be a string, so within contains():

   *[local-name() = $param1]

will only pick the value of the *first* of business's children called
$param1.

To get the effect you want, you actually want to look at all the
business elements, and select those for which there is any child
element called $param1 such that their value contains $param2 (case
insensitively).

Repeating that more slowly so that we can build an XPath:

all the business elements:

  TBD/business

for which there is any child element called $param1:

  TBD/business[*[local-name() = $param1]]

such that their value contains $param2:

  TBD/business[*[local-name() = $param1][contains(., $param2)]]

(case insensitively):

  TBD/business[*[local-name() = $param1]
                [contains(translate(., $lowercase, $uppercase),
                          translate($param2, $lowercase, $uppercase))]]

You could cut down on the size of this a bit (and improve its
efficiency) by getting a capitalised version of $param2 defined
separately:

<xsl:variable name="PARAM2"
              select="translate($param2, $lowercase, $uppercase)" />

and then:
                          
  TBD/business[*[local-name() = $param1]
                [contains(translate(., $lowercase, $uppercase),
                          $PARAM2)]]

I hope that helps,

Jeni

---
Jeni Tennison
http://www.jenitennison.com/



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