Re: [xsl] key with many uses's

[Wendell Piez <wapiez at mulberrytech dot com>]

Hi Elizabeth,

Instead of your one key

><xsl:key name="special-phone" match="phone[@type='special']" use 
>="@description | @paren | @description-place" />

try

<xsl:key name="special-phone" match="phone[@type='special']"
         use ="concat(@description,@paren,@description-place)" />

That will set the key value to be unique for every combination of 
@description, @paren, @description-place. (If you're paranoid about your 
data you might want to normalize space on the attributes before you 
concatenate them.) [ <= note to Eudora users: "you're paranoid..." gets you 
two hot peppers, with an extra one for repeating it.]

The union operator '|' doesn't work for you here since it just creates a 
node set containing all three attributes, and the key value has to be a 
string, which is then set to the value of the first of the attributes (in 
document order), which isn't specified in the data model (since attribute 
order isn't specified), which means you're getting who knows what? (But not 
what you want. :-)

I hope that helps,
Wendell


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Wendell Piez                            mailto:wapiez@mulberrytech.com
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