The "self::" axis of an node always contains only one item, the context node itself. Nevertheless, this axis may be very useful when namespaces are involved. Study carefully the example. If the comparison was based on name() function then the processing would be difficult as namespace prefixes would cause severe problems.
XSLT <xsl:stylesheet xmlns:c="111" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="2.0"> <xsl:output method="xml" indent="yes" omit-xml-declaration="yes"/> <xsl:template match="/"> <xxx> <xsl:apply-templates select="/*"/> </xxx> <yyy> <xsl:apply-templates select="/*/*"/> </yyy> </xsl:template> <xsl:template match="*"> <zzz name="{name()}" position="{position()}"> <xsl:choose> <xsl:when test="self::c:aaa"> <MATCH/> </xsl:when> <xsl:otherwise> <NOTHING/> </xsl:otherwise> </xsl:choose> </zzz> </xsl:template> </xsl:stylesheet> |
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XML <aaa xmlns:a="111" xmlns:b="111"> <a:aaa/> <b:aaa/> <a:aaa xmlns:a="222"/> </aaa> | Output <xxx xmlns:c="111"> <zzz name="aaa" position="1"> <NOTHING/> </zzz> </xxx> <yyy xmlns:c="111"> <zzz name="a:aaa" position="1"> <MATCH/> </zzz> <zzz name="b:aaa" position="2"> <MATCH/> </zzz> <zzz name="a:aaa" position="3"> <NOTHING/> </zzz> </yyy> |
Previous chapter: | Sorting |
Next chapter: | Named-Templates |
Previous page: | Attribute axis |
Next page: | Descendant-or-self and ancestor-or-self axes |
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