what are you passing as the input to this function?
your parameter is called docnode, but you can not be passing teh
document node as it is typed as element()* and document nodes are
necessarily not elements.
If $docnode is empty, you return nothing, and if it is non empty
you pass it to xsl:analyze-string whic as it's name implies expects a
string as its select expression not a sequence of elements.
So if you have nore than one element in $docnode you will get an error
and if there is just one element in $docnode you will analyze teh string
value of that element (ie just take all the character data, ignoring any
elements).
Note that XSLT has _no_ access to the tags in an input document, they
are all resolved by an XML parser before XSLT starts.
I suspect you want to start with an identity transform then add a
template
<xsl:template match="text()">
<xsl:analyze-string select="." regex="\n">
<xsl:matching-substring><br /></xsl:matching-substring>
<xsl:non-matching-substring>
<xsl:value-of select="normalize-space(.)"/>
</xsl:non-matching-substring>
</xsl:analyze-string>
</xsl:template>
David
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