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RE: XSLT stylistics query

• To: "'Simon Kissane'" <skissane@g...>,<xml-dev@l...>
• Subject: RE: XSLT stylistics query
• From: "Michael Kay" <mike@s...>
• Date: Tue, 8 Feb 2005 09:05:11 -0000
• In-reply-to: <82fa66380502072245669df26e@m...>
• Thread-index: AcUNqilkZVfT0IipS/mwQmehc/+E6QAElPUQ

You can use the XSLT current() function if you prefer this to using
variables. (Some people prefer variables). You can also make do with a
single variable:

 <xsl:for-each select="document($cfgschema)/ConfigSchema/RootSection">
   <xsl:variable name="x" select="." />
   <xsl:variable name="SectTypeDef"
 
select="document($cfgschema)/ConfigSchema/SectionType[@Name=$x/@Type]"/>

or 

<xsl:for-each select="document($cfgschema)/ConfigSchema/RootSection">
   <xsl:variable name="SectTypeDef"
 
select="document($cfgschema)/ConfigSchema/SectionType[@Name=current()/@Type]
"/>

I would actually tend to write this as:

<xsl:for-each select="document($cfgschema)/ConfigSchema/RootSection">
   <xsl:variable name="SectTypeDef"
          select="../SectionType[@Name=current()/@Type]"/>

unless there are many SectionTypes, in which case I would use a key.

XSLT coding questions are probably better discussed over on xsl-list at
mulberrytech.com

Michael Kay
http://www.saxonica.com/

> -----Original Message-----
> From: Simon Kissane [mailto:skissane@g...] 
> Sent: 08 February 2005 06:46
> To: xml-dev@l...
> Subject:  XSLT stylistics query
> 
> Hi,
> 
> When I write XSL stylesheets, I often find myself writing code like
> the following sample:
> 
> <xsl:template name="check-root-sections">
> <xsl:for-each select="document($cfgschema)/ConfigSchema/RootSection">
> <xsl:variable name="SectName" select="@Name" />
> <xsl:variable name="SectType" select="@Type" />
> <xsl:variable name="SectTypeDef"
> select="document($cfgschema)/ConfigSchema/SectionType[@Name=$S
ectType]"
> />
> <xsl:variable name="SectInstance"
> select="document($srcdoc)/Config/Section[@Name=$SectName]" />
> ....
> 
> Notice that I declare these two variables, $SectName and $SectType. My
> purpose in doing
> so is because inside the [ ... ] operator, according to my
> understanding, the context node changes to the node before the
> operator. So, if I want to find something in my original context node,
> before the [ ], I need to assign it to a variable first. (In fact, in
> the above example, the two context nodes belong to entirely different
> documents...)
> 
> Is there a cleaner way of doing this? Some XPath syntax to enable me
> to say "the context node previous to the current top of stack..."? If
> there was such a syntax, my code would be a lot cleaner, since I
> wouldn't need so many variable declarations.
> 
> Cheers
> Simon Kissane
> 
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• References:
  • XSLT stylistics query
    • From: Simon Kissane <skissane@g...>

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