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Different behaviour for the first item in a for-each-

Subject: Different behaviour for the first item in a for-each-group
From: "Mark Wilson" <mark@xxxxxxxxxxxx>
Date: Sat, 31 Oct 2009 11:10:07 -0700
 Different behaviour for the first item in a  for-each-
Hi all,
I have a working template that I need to modify. At the moment, as it iterates through the for-each-group, every group (Title) is treated identically. I need to provide a different behavior The first group will be wrapped by a row/cell with the "keep "property, all others in a non-"keep" property row/cell. The current template is in Listing 1, my attempt to modify it in listing 2. Before I bollix everything up, would someone look it over and tell me if I have done it right or if there is a better way?


Listing 1.
<xsl:template name="format-article">
<xsl:for-each-group select="../Article" group-by="Title">
<xsl:sort select="Title"/>
<xsl:sort select="Year"/>
<xsl:sort select="IssueNumber" data-type="number"/>
<xsl:sort select="Page"/>
<fo:block xsl:use-attribute-sets="citation">
<!--for a given title, put the first group in one block-->
<fo:wrapper xsl:use-attribute-sets="title">
<xsl:apply-templates select="Title"/>
</fo:wrapper>
<xsl:apply-templates select="Person"/>
<!--and for each citation-->
<xsl:apply-templates select="current-group()" mode="format"/>
</fo:block>
</xsl:for-each-group>
</xsl:template>


Listing 2:
<xsl:template name="format-article">
<xsl:for-each-group select="../Article" group-by="Title">
<xsl:sort select="Title"/>
<xsl:sort select="Year"/>
<xsl:sort select="IssueNumber" data-type="number"/>
<xsl:sort select="Page"/>
<!-- Put the first citation in a keeping row-->
<xsl:for-each select="current-group()">
<xsl:choose>
<xsl:when test="current-group()[1]">
<fo:table-row keep-with-previous="always">
<fo:table-cell>
<fo:block xsl:use-attribute-sets="citation">
<fo:wrapper xsl:use-attribute-sets="title">
<xsl:apply-templates select="Title"/>
</fo:wrapper>
<xsl:apply-templates select="Person"/>
<!--and for each citation-->
<xsl:apply-templates select="current-group()" mode="format"/>
</fo:block>
</fo:table-cell>
</fo:table-row>
</xsl:when>
<xsl:otherwise>
<fo:table-row>
<fo:table-cell>
<!--and put all the other citations in one a non-keeping row-->
<fo:block xsl:use-attribute-sets="citation">
<fo:wrapper xsl:use-attribute-sets="title">
<xsl:apply-templates select="Title"/>
</fo:wrapper>
<xsl:apply-templates select="Person"/>
<xsl:apply-templates select="current-group()" mode="format"/>
</fo:block>
</fo:table-cell>
</fo:table-row>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each>
</xsl:for-each-group>
</xsl:template>


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