RE: Variables in XPath expressions

["Pawson, David" <DPawson at rnib dot org dot uk>]

Kay Michael wrote:

>
>> <xsl:variable name="i">
>>   <xsl:value-of select="el1/aPosition"/>
>> </xsl:variable>
>> 
>> <xsl:value-of select="el1/*[position()={$i}]"/>
>> 
>
>Write <xsl:value-of select="el1/*[position()=$i]"/>
>or <xsl:value-of select="el1/*[number($i)]"/>
>
>You should never have curly brackets inside an XPath expression.

The magic of AVT's ?


Am I right in summarising that an Attribute Value Template is:
(in very simple English)

An expression inside curly brackets {}
It can only be used when adding an attribute to an element
which is to go into the output tree?
And nowhere else?

E.g. 

<xsl:tempalte match ="x">
  <elem attrib="{some-value}">
etc.
some-value can be an xpath expression such as path/to/sought/element
or a variable.

As Mike says, we can't use it in <xsl:template match=" ..... ">
we can't use it in   <xsl:value-of select=" ....">
we can't use it in   <xsl:variable select=".....">


Am I nearly there?

Regards, DaveP






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