>> Does this mean that theoretically one can create a "generator",
>> function returning different values per each call?
>
>  No, two calls with the same node are guaranteed to return the same
>value.

That's true but what Vladimir  meant was this:


<xsl:stylesheet  version="2.0" 
		 xmlns:f="data:,f"
		 xmlns:xs="http://www.w3.org/2001/XMLSchema"
		 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 

<xsl:template name="main">

: <xsl:sequence select="f:fun()"/>
: <xsl:sequence select="f:fun()"/>
: <xsl:sequence select="f:fun()"/>
: <xsl:sequence select="f:fun()"/>
: <xsl:sequence select="f:fun()"/>
: <xsl:sequence select="f:fun()"/>
: <xsl:sequence select="f:fun()"/>
</xsl:template>

<xsl:function name="f:fun" as="xs:string">
 <xsl:variable name="x">!</xsl:variable>
 <xsl:sequence select="generate-id($x)"/>
</xsl:function>

</xsl:stylesheet>




$ saxon9 -it main gen.xsl
<?xml version="1.0" encoding="UTF-8"?>

: tt1
: tt2
: tt3
: tt4
: tt5
: tt6
: tt7

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