RE: [xsl] Xref numbering test

[Wendell Piez <wapiez@xxxxxxxxxxxxxxxx>]

At 08:27 AM 12/16/2003, Andrew wrote:
> First build a nodeset of all the <stepX>'s with their id's and how you
> want to number them:
>
> <xsl:variable name="steps">
>   <xsl:for-each select="//step1|//step2|....|//step9">
>     <step id="{@id}">
>       <xsl:attribute name="number">
>         <xsl:number count="step1|step2....|
>
> And so on.
>
> This will give you a variable holding something like:
>
> <step id="1234" number="1."/>
> <step id="1abc2" number="1.1."/>
>
> Then in your step processing template, query the variable for the
> correct number using the id of the step you are processing:
>
> <xsl:template match="step1|step2...">
>   <xsl:variable name="currentId" select="@id"/>
>   <xsl:for-each select="$steps">
>     <xsl:value-of select="step[@id = $currentId]/@number"/>

1. This will only work when using XSLT 2.0, or a node-set extension 
function, since ordinarily (in XSLT 1.0) you cannot iterate over, or query 
into, a result-tree-fragment this way.

2. Even so, how is it better than simply calculating the number of each 
step using the same <xsl:number count="step1|step2|..." ... /> instruction, 
where you need it?

<xsl:template match="step1|step2...">
  <xsl:variable name="currentId" select="@id"/>
  <xsl:for-each select="$steps">
    <xsl:value-of select="step[@id = $currentId]/@number"/>
    ...

could as easily be

<xsl:template match="step1|step2...">
  <xsl:number count="step1|step2....| " .../>

(Look ma, no variable.)

Cheers,
Wendell


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Wendell Piez                            mailto:wapiez@xxxxxxxxxxxxxxxx
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