[xsl] Effective boolean value is not defined for a sequence of two or mo

hello,

just began to play with functions, but got error (see subject) at this
simple function


    <xsl:function name="local:path" as="node()">
        <xsl:param name="uri"/>
        <node><xsl:value-of select="string-join((tokenize($uri,'/')[1
to (last()-1)]), '/')"/></node>
    </xsl:function>

look like "last()-1" not acceptable here
any suggestions?

with best wishes,
Slav

--~------------------------------------------------------------------
XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
To unsubscribe, go to: http://lists.mulberrytech.com/xsl-list/
or e-mail: <mailto:xsl-list-unsubscribe(_at_)lists(_dot_)mulberrytech(_dot_)com>
--~--