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[XSL-LIST Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Is self() an attribute or element?
 I have a template that is called to do default processing for a particular node. I'd like to be able to tell if the node is an attribute or element node. Any ideas? This turns out to be not straightforward in the general case ... though the need to do such a test in the general case is not typical for formatting, so I'm not disappointed at the design of XSLT. When doing transformation for the purposes of formatting, I would posit there is very rarely a need to do this kind of test. When would formatting content require similar processing on *every* kind of node? See my prior post for a simple true/false of "am I an element?" which would handle most of the needs. Remember from the XSLT abstract: "XSLT is not intended as a completely general-purpose XML transformation language." So not supporting such a function is not to the detriment of the objective as stated. The one kind of function that can be executed on any node is the generate-id() function, so I would approach it as follows. Can anyone think of a more concise approach? ............... Ken T:\clark>type partlist.xml
<?xml version="1.0"?>
<!--start-->
<part-list><part-name part-nbr="A123">bolt</part-name>
<part-name part-nbr="B456">washer</part-name><warning type="ignore"/>
<!--end of parts--><?cursor blinking?>
</part-list>
T:\clark>type shownode.xsl
<?xml version="1.0"?>
<!DOCTYPE xsl:stylesheet [<!ENTITY nl "
">]>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0"><xsl:output method="text"/> <xsl:template match="text()|@*"/> <xsl:template match="/|*|@*|processing-instruction()|
comment()|text()">
<xsl:variable name="this-node" select="generate-id(.)"/>
<xsl:variable name="this-type">
<xsl:for-each select="../*">
<xsl:if test="generate-id(.)=$this-node">Element</xsl:if>
</xsl:for-each>
<xsl:for-each select="../@*">
<xsl:if test="generate-id(.)=$this-node">Attribute</xsl:if>
</xsl:for-each>
<xsl:for-each select="../processing-instruction()">
<xsl:if test="generate-id(.)=$this-node">PI</xsl:if>
</xsl:for-each>
<xsl:for-each select="../comment()">
<xsl:if test="generate-id(.)=$this-node">Comment</xsl:if>
</xsl:for-each>
<xsl:for-each select="../text()">
<xsl:if test="generate-id(.)=$this-node">Text</xsl:if>
</xsl:for-each>
<xsl:if test="not(..)">
<xsl:text>Root</xsl:text>
</xsl:if>
</xsl:variable>
<xsl:text>&nl;Node </xsl:text><xsl:value-of select="name(.)"/>
<xsl:text> is a node of type: </xsl:text>
<xsl:value-of select="$this-type"/>
<xsl:if test="string($this-type)='Attribute'">
<xsl:text> (BINGO!! Found an attribute)</xsl:text>
</xsl:if>
<xsl:apply-templates select="*|@*|processing-instruction()|
comment()|text()"/>
</xsl:template></xsl:stylesheet> T:\clark>xt partlist.xml shownode.xsl Node is a node of type: Root Node is a node of type: Comment Node part-list is a node of type: Element Node part-name is a node of type: Element Node part-nbr is a node of type: Attribute (BINGO!! Found an attribute) Node is a node of type: Text Node is a node of type: Text Node part-name is a node of type: Element Node part-nbr is a node of type: Attribute (BINGO!! Found an attribute) Node is a node of type: Text Node warning is a node of type: Element Node type is a node of type: Attribute (BINGO!! Found an attribute) Node is a node of type: Text Node is a node of type: Comment Node cursor is a node of type: PI Node is a node of type: Text T:\clark> -- G. Ken Holman mailto:gkholman@xxxxxxxxxxxxxxxxxxxx Crane Softwrights Ltd. http://www.CraneSoftwrights.com/s/ Box 266, Kars, Ontario CANADA K0A-2E0 +1(613)489-0999 (Fax:-0995) Web site: XSL/XML/DSSSL/SGML services, training, libraries, products. Practical Transformation Using XSLT and XPath ISBN 1-894049-02-0 Next instructor-led training: 1999-11-08, 1999-11-09, 1999-12-05/06, 1999-12-07, 2000-02-27/28, 2000-05-11/12 XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list 
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