[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] RE: Preceding: can't filter my nodes?
> I'm trying to get a unique set of nodes. I can't seem to tie > the preceding > axis to a filter on a given ID. I have tried filtering that > node set into a > variable and then getting a unique list from that, but I am > still operating > on the whole node set.(abbreviated XML below) > > <xsl:variable name="ats" select="/ROWSET/ROW[R_ID='14144']"/> > <xsl:for-each select="$ats/AT_ID[not(.=preceding::AT_ID)]"> > <at_id><xsl:value-of select="."/></at_id> > </xsl:for-each> "preceding", like all the other axes, means "preceding in the source document", not "preceding in the node-set". I'm tempted to suggest the saxon:distinct() function, but I know that's cheating! select="saxon:distinct($ats/AT_ID)" Perhaps you want select="$ats/AT_ID[not(.=preceding::AT_ID[ancestor::ROW[R_ID='14144']]]"> but it looks horribly inefficient. If you want a solution that's both portable and efficient, it will probably use keys. Mike Kay XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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