When you do <xsl:for-each-group select="*">, you are selecting <role>
elements. No role element will ever match the pattern
"verse[(_at_)part='beginning']". I'm not sure, but I suspect you want to change
the select to select="role/verse".
Regards,
Michael Kay
http://www.saxonica.com/
http://twitter.com/michaelhkay
-----Original Message-----
From: J L [mailto:jinlii(_at_)hotmail(_dot_)com]
Sent: 06 January 2010 01:51
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: RE: [xsl] Number of elements with a given attribute
I'm new to XSLT 2.0. I tried this example in Altova and
couldn't get the output below. I'm not sure if the input is
wrong or my xsl is incorrect. Thanks for your time!
<verse>
<part role=3D"a">...</part>
<part role=3D"a">...</part>
<part role=3D"b">...</part>
</verse>
<verse>
input xml:
<verses>
<role name="a">
<verse>...</verse>
<verse part="beginning">1</verse>
</role>
<role name="a">
<verse part="continuation">continuation 2</verse>
</role>
<role name="b">
<verse part="continuation">continuation 3</verse>
</role>
<role name="b">
<verse part="end">end</verse>
<verse>...</verse>
</role>
<role name="a">
<verse>...</verse>
<verse part="beginning">1</verse>
</role>
<role name="a">
<verse part="continuation">continuation 2</verse>
</role>
<role name="b">
<verse part="continuation">continuation 3</verse>
</role>
<role name="b">
<verse part="end">end</verse>
<verse>...</verse>
</role>
</verses>
xsl:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xmlns:fo="http://www.w3.org/1999/XSL/Format";
xmlns:xs="http://www.w3.org/2001/XMLSchema";
xmlns:fn="http://www.w3.org/2005/xpath-functions";>
<xsl:template match="verses">
<xsl:for-each-group select="*"
group-starting-with="role/verse[empty(@part)] |
verse[(_at_)part='beginning']">
<xsl:variable name="verse-number" select="position()"/>
<verse>
<xsl:for-each select="current-group()">
<part role="parent::role/@name">
<xsl:copy-of select="node()"/>
</part>
</xsl:for-each>
</verse>
</xsl:for-each-group>
</xsl:template>
</xsl:stylesheet>
From: mike(_at_)saxonica(_dot_)com
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Date: Fri, 18 Dec 2009 09:45:18 +0000
Subject: RE: [xsl] Number of elements with a given attribute
In a piece of theater, I have some verses that are split between
different roles.
The other are tagged on the following model:
<role name='...'>
...
<verse>...</verse>
<verse part="beginning">...</verse> </role> <role name='...'>
<verse part="continuation">...</verse> </role> <role name='...'>
<verse part="continuation">...</verse> </role> <role name='...'>
<verse part="end">...</verse>
<verse>...</verse>
...
</role>
I wish to have the count of preceding parts of verse from the last
beginning part.
Regards,
A classic case of two overlapping hierarchies running over
the same data.
One of these hierarchies is represented directly in the XML tree
structure, the other is represented indirectly. You want to
perform an
operation on the "hidden" hierarchy, so it's best to invert the
structure so the verse hierarchy becomes the primary one.
That is, you want:
<verse>
<part role="a">...</part>
<part role="a">...</part>
<part role="b">...</part>
</verse>
<verse>
...
which can be done like this:
<xsl:for-each-group select="$verses"
group-starting-with="verse[empty(@part)] |
verse[(_at_)part='beginning']">
<xsl:variable name="verse-number" select="position()"/>
<verse>
<xsl:for-each select="current-group()">
<part role="parent::role/@name">
<xsl:copy-of select="node()"/>
</part>
</xsl:for-each>
</verse>
</xsl:for-each-group>
You now have each verse represented by a complete element,
broken into
parts to show who speaks each part of the verse, and this makes it
easy for example to number the parts of a verse as you have
asked for.
Regards,
Michael Kay
http://www.saxonica.com/
http://twitter.com/michaelhkay
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