Re: [xsl] key with restricting the scope of use attribute

[David Carlisle <davidc@xxxxxxxxx>]

I know I've said this before but your key isn't doing anything at all.

 <xsl:for-each select="key('MyKey1',concat(generate-id(),':','1:1'))">
  MyKey1:@id=<xsl:value-of select="@id"/><br/>
 </xsl:for-each>

is just

 <xsl:if test="@x=1 and @y=1">
  MyKey1:@id=<xsl:value-of select="@id"/><br/>
 </xsl:if>

There is no for-each involved really as you are never making any use of
the key. The point of a key is to hash all elements with @x and @y
being 1 so you can find them quickly.
You do that but then don't use it and search the document again the slow
way by going

<xsl:apply-templates select="/root/a[1]/b[1]"/>

Then you use a key lookup that can only ever succeeed on the current
node, so you know whether it will succeed before you do it.

David

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