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i'm trying to use xpath to find nodes that don't match any other nodes
(of a different type). here's an example xml:

<a>
<b>
<c>one</c>
<c>three</c>

<d>
<e>one</e>
<e>three</e>
<e>five</e>
</d>
</a>

what i want to find are all the e nodes that don't have a matching c
node (five in this case). any pointers would be most appreciated!
~thanks

Tempore 17:52:11, die Thursday 27 January 2005 AD, hinc in foro {comp.text.xml} scripsit <>:

> <a>
> <b>
> <c>one</c>
> <c>three</c>
>
> <d>
> <e>one</e>
> <e>three</e>
> <e>five</e>
> </d>
> </a>
>
> what i want to find are all the e nodes that don't have a matching c
> node (five in this case). any pointers would be most appreciated!
Hi,

A short, but CPU unfriendly method is this:
<xsl:template match="a">
<xsl:apply-templates select=".//e[not(.=//c)]"/>
</xsl:template>

A key approach could be used for better performance:
<xsl:key name="node" match="c" use="."/>

<xsl:template match="a">
<xsl:apply-templates select=".//e[not(key('node',.))]"/>
</xsl:template>

regards,
--
Joris Gillis (http://www.ticalc.org/cgi-bin/acct-v...i?userid=38041)
Laudeo W3C et dona ferens

excellent, thanks Joris!