Sorry for my late reply as I was out of town.
Thanks Dimitre for the "exslt:node-set()" solution and Jarkko for the
"xalan:nodeset()" solution.
Does it mean that there is no solution without using processor dependent
solution nor external library in XSLT 1.0?
Well, I am new to XSLT. I suspect that there are some limitations in node set
in XSLT. That was why the function was extended via using external library or
via enhancing a processor. Am I correct?
How about in XSLT 2.0? Should I drove in some XSLT tutorials to extend my
knowledge?
Highly appreciated if you can give me some recommendations.
----- Original Message -----
From: "Dimitre Novatchev" <dnovatchev(_at_)yahoo(_dot_)com>
Date: Tue, 11 Nov 2003 21:11:11 +0100
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: [xsl] Re: Can grouping and sorting be done in single transformation?
"Herman Kwok" <herman(_dot_)kwok(_at_)technologist(_dot_)com> wrote in message
news:20031110060052(_dot_)4077(_dot_)qmail(_at_)iname(_dot_)com(_dot_)(_dot_)(_dot_)
Hi all,
I am new to XSL. I am woundering if sorting and grouping can be done in
single transformation. If it is possible, would you please tell me how?
Yes, if you use the exslt:node-set() extension function.
This transformation:
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:ext="http://exslt.org/common";
exclude-result-prefixes="ext"
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:template match="result">
<xsl:copy>
<xsl:variable name="vrtfSorted">
<xsl:for-each select="item">
<xsl:sort select="@desc"/>
<xsl:copy-of select="."/>
</xsl:for-each>
</xsl:variable>
<xsl:variable name="vSorted"
select="ext:node-set($vrtfSorted)/*"/>
<xsl:for-each select="$vSorted">
<xsl:if test="position() mod 3 = 1">
<xsl:variable name="vPos" select="position()"/>
<group>
<xsl:copy-of select=". | $vSorted[position() > $vPos
and
position() < $vPos + 3
]"/>
</group>
</xsl:if>
</xsl:for-each>
</xsl:copy>
</xsl:template>
</xsl:stylesheet>
when applied on your source.xml:
<result>
<item desc="d"/>
<item desc="j"/>
<item desc="k"/>
<item desc="e"/>
<item desc="c"/>
<item desc="g"/>
<item desc="h"/>
<item desc="i"/>
<item desc="f"/>
<item desc="a"/>
<item desc="b"/>
</result>
produces the wanted result:
<result>
<group>
<item desc="a"/>
<item desc="b"/>
<item desc="c"/>
</group>
<group>
<item desc="d"/>
<item desc="e"/>
<item desc="f"/>
</group>
<group>
<item desc="g"/>
<item desc="h"/>
<item desc="i"/>
</group>
<group>
<item desc="j"/>
<item desc="k"/>
</group>
</result>
=====
Cheers,
Dimitre Novatchev.
http://fxsl.sourceforge.net/ -- the home of FXSL
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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