grouping/position problem

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Subject: grouping/position problem
From: Bruce D'Arcus <bdarcus@xxxxxxxxx>
Date: Fri, 22 Apr 2005 08:16:19 -0400

I'm having some problems with grouping and position().

For illustration, you could imagine an input source like:

<list>
  <item author="five" year="2001"/>
  <item author="three" year="2003"/>
  <item author="four" year="2002"/>
  <item author="two" year="1998"/>
  <item author="one" year="2005"/>
  <item author="two" year="2000"/>
  <item author="four" year="1999"/>
</list>

I need to group and sort by author, then by year, and then pass some parameters that are based on the item's position within -- in this case -- the author group.

I have this template:

<xsl:template match="mods:modsCollection" mode="sort_author-year"> <xsl:variable name="bibref" select="mods:mods" /> <xsl:for-each-group select="$bibref" group-by="bib:grouping-key(.)"> <xsl:sort select="current-grouping-key()"/> <xsl:variable name="author-position" select="position()"/> <xsl:variable name="shorten-author" as="xs:boolean" select="$author-position > 1" /> <xsl:for-each-group select="current-group()" group-by="bib:year(.)"> <xsl:sort select="current-grouping-key()" /> <xsl:variable name="year"> <xsl:value-of select="current-grouping-key()"/> <xsl:if test="last() > 1"> <xsl:number value="position()" format="a"/> </xsl:if> </xsl:variable> <xsl:for-each select="current-group()"> <xsl:apply-templates select="mods:titleInfo"> <xsl:with-param name="year" select="$year"/> <xsl:with-param name="shorten-author" select="$shorten-author"/> </xsl:apply-templates> </xsl:for-each> </xsl:for-each-group> </xsl:for-each-group> </xsl:template>

The bib:grouping-key function constructs an author names string to sort.

The problem is the author-position variable.

What I want is for it to measure position within an author group. But I'm getting these sorts of results:

    AUTHOR POSITION: 1
    SHORTEN: false
    AUTHOR POSITION: 2
    SHORTEN: true
    AUTHOR POSITION: 2
    SHORTEN: true
    AUTHOR POSITION: 3
    SHORTEN: true
    AUTHOR POSITION: 4
    SHORTEN: true
    AUTHOR POSITION: 4
    SHORTEN: true
    AUTHOR POSITION: 5
    SHORTEN: true
    AUTHOR POSITION: 6

... which tells me it's measuring the position of the group itself.

What I'm wanting is:

    AUTHOR POSITION: 1
    SHORTEN: false
    AUTHOR POSITION: 1
    SHORTEN: false
    AUTHOR POSITION: 2
    SHORTEN: true
    AUTHOR POSITION: 1
    SHORTEN: false
    AUTHOR POSITION: 1
    SHORTEN: false
    AUTHOR POSITION: 2
    SHORTEN: true
    AUTHOR POSITION: 1
    SHORTEN: false
    AUTHOR POSITION: 1
    SHORTEN: false

How do I fix this?

Bruce

Current Thread
grouping/position problem Bruce D'Arcus - 22 Apr 2005 12:16:51 -0000 <= M. David Peterson - 22 Apr 2005 12:41:37 -0000 M. David Peterson - 22 Apr 2005 14:11:34 -0000 M. David Peterson - 22 Apr 2005 14:13:05 -0000 M. David Peterson - 22 Apr 2005 14:28:32 -0000

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