Re: [xsl] first element of type x in a group

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

Ben,

At 03:54 PM 8/21/01, you wrote:


> I was wondering if anyone would know how to express the following...
>
> <page>
> <command></command>
> <info></info>
> <field>
>    <x></x>
>    <y></y>
> </field>
> <field>
>    <x></x>
>   <y></y>
> </field>
> </page>
>
>
> When I am in x i want to figure out if I am in the first <field>.

<xsl:if test="not(parent::field/preceding::field)">
...</xsl:if>

will test true if the parent is not a field or if the parent field has no 
field elements preceding it (meaning among the elements that open and close 
before it, which doesn't include its ancestors).

"not(../preceding-sibling::field)" is almost the same test, and is 
preferable from some points of view. In particular, you should use 
preceding-sibling if you know all your field elements will be at the same 
level.

Cheers,
Wendell


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Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
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