Subject: Re: [xsl] Xslt transform & grouping, Using the Muenchian Method? From: "M. David Peterson" <m.david@xxxxxxxxxx> Date: Sun, 10 Oct 2004 11:27:20 -0700 |
<Document title="1" chapter="1" href="file1.xml" filter="food"> <Article title="1.1" info="sub" filter="food"/> <Article title="1.2" info="main" filter="food"/> </Document> <Document title="3" chapter="3" href="file2.xml" filter=""/>
Hi,
I would like to group following, by attribute Title, and then filter by attribute filter="food". Title-attribute exists in both Document and Article elements.
That is, groups should be created based on attribute Title in Document element, and filtered by attribute e.g. filter="food".
Currently I am using grouping and filtering in following stylesheet.
All other elements, where filter != "food" should be ignored. Filter is global parameter.
Thank you!
Some help on the way:
XSL:
<?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="by-info" match="Article" use="@info"/>
<xsl:param name="filter" select="'food'"/>
<xsl:template match="Documents"> <Documents> <xsl:for-each select="Document[@filter='' or @filter=$filter]/Article[generate-id()=generate-id(key('by-info',@info)[@filter=$filter])]"> <Document name="{@info}"> <xsl:copy-of select="key('by-info',@info)[@filter=$filter]"/> </Document> </xsl:for-each> </Documents> </xsl:template>
</xsl:stylesheet>
XML:
<Documents> <Document title="1" chapter="1" href="file1.xml" filter="food"> <Article title="1.1" info="sub" filter="food"/> <Article title="1.2" info="main" filter="food"/> </Document> <Document title="2" chapter="2" href="file2.xml" filter="drink"> <Article title="2.1" info="sub" filter="drink"/> <Article title="2.2" info="main" filter="food"/> </Document> <Document title="3" chapter="3" href="file2.xml" filter=""> <Article title="3.1" info="sub" filter="drink"/> <Article title="3.2" info="child" filter=""/> </Document> </Documents>
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