Hi Jim,
It seems to me _a grouping problem_, which can be
solved by Muenchian method..
The XSL for this would be --
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
<xsl:output method="xml" version="1.0"
encoding="UTF-8" indent="yes"/>
<xsl:key name="group-by-id" match="chapter" use="@id"
/>
<xsl:template match ="/A">
<xsl:for-each select="chapter">
<xsl:if test="(generate-id(.) = generate-id(
key('group-by-id', @id)[1])) and not(@value = '0')">
<xsl:copy-of select="." />
</xsl:if>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>
If the above XSL is applied to the XML --
<?xml version="1.0" encoding="UTF-8"?>
<A>
<chapter id="BCV-MRK-0" value="0" />
<chapter id="BCV-MRK-0" value="0" />
<chapter id="BCV-MRK-1" value="1" />
<chapter id="BCV-MRK-1" value="1" />
<chapter id="BCV-MRK-1" value="1" />
<chapter id="BCV-MRK-2" value="2" />
<chapter id="BCV-MRK-2" value="2" />
<chapter id="BCV-MRK-2" value="2" />
<chapter id="BCV-MRK-2" value="2" />
<chapter id="BCV-MRK-3" value="3" />
<chapter id="BCV-MRK-3" value="3" />
<chapter id="BCV-MRK-3" value="3" />
<chapter id="BCV-MRK-3" value="3" />
</A>
(I have introduced a <A> tag to make the XML
well-formed, and have removed keep tags)
It produces output --
<chapter id="BCV-MRK-1" value="1"/>
<chapter id="BCV-MRK-2" value="2"/>
<chapter id="BCV-MRK-3" value="3"/>
I hope, this solution _was_ required.. I am not sure,
whether Michael Kay's solution solved the problem.. I
observed that the XPath expression Michael Kay wrote,
produced a different ouput.
Regards,
Mukul
--- Jim_Albright(_at_)wycliffe(_dot_)org wrote:
reducing the problem to bare bones I want to keep
only some of the
"chapter" elements and toss the rest:
<chapter id="BCV-MRK-0" value="0"
keep="no"/>
<chapter id="BCV-MRK-0" value="0"
keep="no"/>
<chapter id="BCV-MRK-1" value="1"
keep="yes"/>
<chapter id="BCV-MRK-1" value="1"
keep="no"/>
<chapter id="BCV-MRK-1" value="1"
keep="no"/>
<chapter id="BCV-MRK-2" value="2"
keep="no"/>
<chapter id="BCV-MRK-2" value="2"
keep="yes"/>
<chapter id="BCV-MRK-2" value="2"
keep="no"/>
<chapter id="BCV-MRK-2" value="2"
keep="no"/>
<chapter id="BCV-MRK-3" value="3"
keep="no"/>
<chapter id="BCV-MRK-3" value="3"
keep="yes"/>
<chapter id="BCV-MRK-3" value="3"
keep="no"/>
<chapter id="BCV-MRK-3" value="3"
keep="no"/>
I have added the keep attribute by hand to show
which "chapter"s to keep
so I should end with
<chapter id="BCV-MRK-1" value="1"
keep="yes"/>
<chapter id="BCV-MRK-2" value="2"
keep="yes"/>
<chapter id="BCV-MRK-3" value="3"
keep="yes"/>
<xsl:template match="chapter" >
<xsl:choose>
<!--...... if chapter is zero then toss
.....-->
<xsl:when test="@value='0'">
<!--...... remove chapter 0
.....-->
</xsl:when>
<!--...... if very first chapter 1 in book
then keep .....-->
<xsl:when test="@value='1' and
preceding::chapter[not(@value='1')]">
<xsl:call-template
name="copy-current-node"/>
</xsl:when>
<!--...... if second occurrence of same
value and value is not 1
then keep it .....-->
<xsl:when test=""><!-- not working
yet-->
<xsl:call-template
name="copy-current-node"/>
</xsl:when>
<xsl:otherwise>
<!--...... remove duplicate
chapter .....-->
</xsl:otherwise>
</xsl:choose>
</xsl:template>
Jim Albright
704 843-0582
Wycliffe Bible Translators
XSL-List info and archive:
http://www.mulberrytech.com/xsl/xsl-list
__________________________________
Do you Yahoo!?
The New Yahoo! Shopping - with improved product search
http://shopping.yahoo.com
XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list