However, Micheal Kay's solution isn't working, Saxon reports
that you cannot start with self:: in a group-starting-with
attribute. (Axis in pattern must be child or attribute).
Yes, sorry, replace match="self::a[....]" with match="a[.....]".
Michael Kay
http://www.saxonica.com/
The solution of Andrew Welch seemed to work better, until I
discovered that when I have a node containing a childnode and
some text, only the childnode remains in the resulting document.
I've tried to modify the stylesheet, but no such luck.
--
Fredrik Geers
-----Original Message-----
Date: Wed, 20 Dec 2006 15:11:12 -0000
To: <xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com>
From: "Michael Kay" <mike(_at_)saxonica(_dot_)com>
Subject: RE: [xsl] Positional grouping with exceptions
Message-ID: <01c701c72449$161cb0a0$6401a8c0(_at_)turtle>
Try
<xsl:template match="book">
<book>
<xsl:for-each-group select="*"
group-starting-with="self::a[not(child::text())] |
self::a[not(preceding-sibling::*[1][self::a])] |
*[not(self::a)]">
<xsl:choose>
<xsl:when test="self::a[not(child::text())]">
<a1><xsl:copy-of select="remove(current-group(),1)"/></a1>
</xsl:when>
<xsl:when test="self::a">
<a1><xsl:copy-of select="current-group()"/></a1>
</xsl:when>
<xsl:otherwise>
<xsl:copy-of select="current-group()"/>
Not tested.
Michael Kay
http://www.saxonica.com/
-----Original Message-----
Date: Wed, 20 Dec 2006 15:28:15 +0000
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
From: "Andrew Welch" <andrew(_dot_)j(_dot_)welch(_at_)gmail(_dot_)com>
Subject: Re: [xsl] Positional grouping with exceptions
Message-ID:
<74a894af0612200728o791232f5t915f97e8b0faf43(_at_)mail(_dot_)gmail(_dot_)com>
I think you need a modified identity transform for this one. The
following stylesheet walks the tree along the
following-sibling axis,
allowing you to group <a>'s with text as you come across them:
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="node()">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates select="node()[1]"/>
</xsl:copy>
<xsl:apply-templates select="following-sibling::*[1]"/>
</xsl:template>
<xsl:template match="a[text()]">
<al>
<xsl:apply-templates select="." mode="fill"/>
</al>
<xsl:apply-templates
select="following-sibling::*[not(self::a[text()])][1]"/>
</xsl:template>
<xsl:template match="a[text()]" mode="fill">
<xsl:copy-of select="."/>
<xsl:apply-templates
select="following-sibling::*[1][self::a[text()]]" mode="fill"/>
</xsl:template>
</xsl:stylesheet>
The output generated is:
<book>
<header>title</header>
<al>
<a>text</a>
<a>text</a>
</al>
<otherelement>title</otherelement>
<al>
<a>text</a>
<a>text</a>
</al>
<a/>
<al>
<a>text</a>
</al>
</book>
Notice the <a/> which wasnt present in your example - easy
to suppress
if that really is the case.
By the way, Saxon 8.8 is available now.
cheers
andrew
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