Re: [xsl] XSLT2, select nodes inside a tokenize()'d variable

["Andrew Welch" <andrew.j.welch@xxxxxxxxx>]

On 12/20/06, James Cummings <cummings.james@xxxxxxxxx> wrote:
> Hiya,  I'm sure I'm just looking at this upside down, but here goes:
>
> I want to do something like this:
>
> <xsl:template name="makeSegLabel">
> <xsl:variable name="ana" select="tokenize(@ana, '(\s+)')"/>
> <xsl:for-each select="$ana">
>   <xsl:value-of select="."/><xsl:text>:</xsl:text>
>   <xsl:value-of select="//category[@id = .]/catDesc"/>
> </xsl:for-each>
> </xsl:template>
>
> Where I want to tokenize the ana attribute on the element which called
> this template, and then for each whitespace separated value, I want to
> put it out, and then go get a description of what that value means
> from elsewhere in the document.
>
> However, I'm rightly told that I cannot select a node here because the
> context is an atomic value.
>
> I'm sure I'm being stupid and there is a better way to do this.

No, this is the right way - you just need to maintain a pointer the
content node (or root) outside of the tokenize, for example:

<xsl:template name="makeSegLabel">
 <xsl:variable name="ana" select="tokenize(@ana, '(\s+)')"/>
 <xsl:variable name="this" select="."/>
 <xsl:for-each select="$ana">
   <xsl:value-of select="$this"/>

Also, you really ought to be using a key instead of:

<xsl:value-of select="//category[@id = .]/catDesc"/>

eg:

<xsl:key name="cat-by-id" match="category" use="@id"/>


Ultimately it could all be rewritten as:

<xsl:variable name="ana" select="tokenize(@ana, '(\s+)')"/>
<xsl:value-of select="for $x in $ana return string-join(concat($x,':',
key('cat-by-id', $x)/catDesc), ', ')"/>


cheers
andrew