[exsl] Global variables in functions

Hi,

Jeni wrote:

"There are two solutions that I can see:

1. ban using global variables in functions altogether

2. ban using global variables in functions that are
called from the
   'match' attribute on xsl:template or the 'match' or
'use'
   attributes of xsl:key"

Or maybe: 

change:

"It is an error for the value of the match attribute
to contain a VariableReference."

to:

"VariableReferences can appear anywhere"

;)

Tobi

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