Re: [xsl] Xpath and Ranges

["Joe Fawcett" <joefawcett@xxxxxxxxxxx>]

You need to escape the << to &-l-t-; &-l-t-; (dashes added for clarity, 
remove in code).
You might want to escape >> to &-g-t-;  &-g-t-; as well.

--

Joe
----- Original Message ----- 
From: "David White" <davidw@xxxxxxxxxxx>
To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Friday, August 04, 2006 1:56 PM
Subject: RE: [xsl] Xpath and Ranges


Hello,

The below statement works fine when I run a XQUERY against my XML.  It 
returns the nodes that I need.

for $T1 in (//title)[1], $T2 in (//title)[2] return ($T1, //*[. >> $T1 and . 
<< $T2], $T2)


However, when I plug it into a XSLT template it complains about the >>,<< 
characters.  I have tried different versions of them but none validate.

<xsl:template match="for $T1 in (//title)[1], $T2 in (//title)[2] return 
($T1, //*[. >> $T1 and . << $T2], $T2)">

<xsl:element name="sect1">
<xsl:apply-templates/>
</xsl:element>
</xsl:template>

Any suggestions?

Thanks!

-----Original Message-----
From: Michael Kay [mailto:mike@xxxxxxxxxxxx]
Sent: Wednesday, August 02, 2006 12:20 PM
To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
Subject: RE: [xsl] Xpath and Ranges

> Is it possible to use Xpath to select a range of nodes.
>
> <chapter>
> <title>X</title>
> <para>
> <para>
> <title>Y</title>
> </chapter>
>
> I would like an Xpath statement that would select //title[1]
> THROUGH //title[2] and include all nodes between.  Is this possible?

I'm assuming that <para> represents <para>....</para>, i.e. a complete
element.

If you know that the nodes are siblings, and you are positioned on their
parent, then you can do

(title[1] , *[. >> title[1] and . << title[2]] , title[2])

If they aren't siblings and you are positioned on the root, then you can do

for $T1 in (//title)[1], $T2 in (//title)[2]
return ($T1, //*[. >> $T1 and . << $T2], $T2)

That's XPath 2.0; in 1.0 it's more tricky.

Michael Kay
http://www.saxonica.com/