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Re: [xsl] Patterns and scoped variables (or rather lack thereof)

Subject: Re: [xsl] Patterns and scoped variables (or rather lack thereof)
From: Wendell Piez <wapiez@xxxxxxxxxxxxxxx>
Date: Mon, 17 Feb 2014 12:15:39 -0500


I will sometimes resort to stylesheet functions to provide
encapsulation of logic like this.

So (designed to return nothing when the input doesn't show two values
when tokenized on the colon):

<xsl:function name="ihe:colon-delimited-label" as="xs:string()?">
  <xsl:param name="field" as="node()"/>
  <xsl:variable name="split-on-colon" select="tokenize($field,'\s*:\s*')"/>
  <xsl:if test="count($split-on-colon) eq 2">
    <xsl:sequence select="$split-on-colon[1]"/>


<xsl:template match="text()[count(tokenize(ihe:colon-delimited-label(.)),'\s*')
le 3]">

I hope that helps,

On Sat, Feb 15, 2014 at 3:42 PM, Ihe Onwuka <ihe.onwuka@xxxxxxxxx> wrote:
> Transforming this sort of markup
> <div class="fr small subtle">Transaction date: Sep 26, 2013</div>
> into a key value pair.
> <Transactiondate>Sep 26, 2013</Transactiondate>
> However if there are too many words before the colon separator (the
> key part) then it probably isn't suitable for the key value treatment
> (the code below uses 3 words as the cutoff point).
> Talking of the code below and the thread title, the issue is how many
> times I've had to (or think I've had to ) tokenize the string on colon
> because I cannot (or think I cannot) introduce a let scoped variable
> into the pattern.
>  <xsl:template match="text()[count(tokenize(.,':')) eq 2 and
> count(tokenize(tokenize(.,':')[1],'\s+')) lt 4]">
>     <xsl:variable name="keyValue" select="tokenize(.,':')"/>
>     <xsl:element name="{replace($keyValue[1],'\s+','')}"> .....key.....
>       <xsl:value-of select="$keyValue[2]"/>
> ......value.....
>     </xsl:element>
>   </xsl:template>
> How else do I think I could do this.
> <xsl:template match="text()">
>   <xsl:call-template name="dealWithText"
> </xsl:template>
> <xsl:template name="dealWithText">
>   <xsl:variable name="keyValue" select=tokenize ...etc>
>   <xsl:choose>
>     <xsl:when etc
> which of course camouflages the matchng rule inside the call template.
> Is this the best that can be done  or have I missed something.

Wendell Piez | http://www.wendellpiez.com
XML | XSLT | electronic publishing
Eat Your Vegetables

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