Re: [xsl] Identifying two tags that share some attribute names and values

[Zack Brown <zbrown at tumblerings dot org>]

On Sat, May 04, 2002 at 09:18:45PM +0200, Joerg Heinicke wrote:
> Hello Zack,
> 
> I have a solution, but I don't know whether it's the optimum.

That was fast!

> I didn't 
> get it with one expression and need the step with $test:
> 
> <xsl:variable name="file1" select="/"/>
> <xsl:variable name="file2" select="document('2.xml')/outsidedata"/>
> 
> <xsl:template match="/">
>     <xsl:apply-templates select="$file2/b"/>

That's a problem, because 2.xml may contain thousands of entries, and I
don't want to process each one. I just want to process the <a> from 1.xml
and find any corresponding <b> in 2.xml.

> </xsl:template>
> 
> <xsl:template match="b">
>     <xsl:variable name="test">
>         <xsl:for-each select="@*">
>             <xsl:if test="$file1/a/@*[name()=name(current())][. != 
> current()] or not($file1/a/@*[name()=name(current())])">
>                 <xsl:text>false</xsl:text>
>             </xsl:if>
>         </xsl:for-each>
>     </xsl:variable>

Nice hack! Even aside from the cool middle part, I like the idea of looping
within a variable creation, in order to include a specific result that can
be tested for later.

>     <xsl:if test="not(contains($test, 'false'))">
>         <xsl:text>[</xsl:text>
>         <xsl:value-of select="."/>
>         <xsl:text>]</xsl:text>
>     </xsl:if>
> </xsl:template>
> 
> I test on every attribute whether it is in <a> and has a different value 
> or it does completely not exist. If it is so I add a false to the 
> test-string. If no 'false' is contained in $test, the value of b will be 
> copied to the output.
> 
> Regards,
> 
> Joerg
> 

-- 
Zack Brown

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