Thanks a lot Geert Josten. I have spent a lot time on
this problem, but couldn't get it works, the match
expression never close to what you have. Thank you
very much for letting me to learn from your solution.
I'm not quite understand the match expression of
"item[(_at_)title !=
''][following-sibling::item[itemmetadata/qtimetadata/qtimetadatafield[fieldlabel
= 'item_type_code'][fieldentry ='OE']]]"
I thought it will only return two item that is OE
item?? but it works. Would you please explain it more
for me?
Thanks again and you have a great day!
Fanyin
--- Geert Josten <Geert(_dot_)Josten(_at_)daidalos(_dot_)nl> wrote:
Hi Fanyin Wang,
I'm not sure it is really a grouping problem, though
it is related. But I can tell you where your
script fails. I suspect you use the following line
to determine the distinctness of some item/@id,
but it obviously fails:
<xsl:if
test="not(preceding-sibling::item/@id = $pass_id)">
At least one problem is that the preceding-sibling
does not go up the section element an down a
preceding section. Use the preceding axis for this.
But I tried and this also doesn't seem to work
and I haven't figured out why exactly.
But I did come up with a solution (see below) that
builds an index on what you are searching and
uses that index to determine whether an item with a
specific @id value is the first in document
order or not. The xsl:key defines the index, which
contains a rather complex match expression, but
this expression merely combines your own if and
foreach in the item template. The tricky part comes
in passage2 template, where I use generate-id to
determine whether the first of all OE-items with
the same id is actually the current item. Only the
first in document order is printed.
Grtz,
Geert
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
xml:space="default">
<xsl:key name="OE-related-items-by-id"
match="item[(_at_)title !=
''][following-sibling::item[itemmetadata/qtimetadata/qtimetadatafield[fieldlabel
=
'item_type_code'][fieldentry ='OE']]]" use="@id" />
<!--xsl:template match="/">
<xsl:apply-templates select="//item"
mode="passage"/>
</xsl:template-->
<xsl:template match="/">
<xsl:apply-templates select="//item"
mode="passage2"/>
</xsl:template>
<xsl:template match="item" mode="passage">
<xsl:if
test="descendant::qtimetadatafield/fieldentry[preceding-sibling::node()[text()='item_type_code']]/text()='OE'">
<xsl:for-each
select="preceding-sibling::item[(_at_)title !='']">
<xsl:variable name="pass_id" select="@id"/>
<xsl:if
test="not(preceding-sibling::item/@id = $pass_id)">
pa_id= <xsl:value-of
select="@id"/><br></br>
</xsl:if>
</xsl:for-each>
</xsl:if>
</xsl:template>
<xsl:template match="item" mode="passage2">
<xsl:if test="generate-id(.) =
generate-id(key('OE-related-items-by-id', @id)[1])">
pa_id= <xsl:value-of select="@id"/><br></br>
</xsl:if>
</xsl:template>
</xsl:stylesheet>
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