Subject: RE: [xsl] Error trapping in xsl From: "Michael Kay" <mhkay@xxxxxxxxxxxx> Date: Thu, 12 Jul 2001 09:27:07 +0100 |
> I'm trying to error trap for empty elements in the xml document > using xsl:choose & I can't work out the syntax. First thing is to decide what you mean by "empty" (e.g. is an element empty if it contains only a comment? Only whitespace text?) A typical meaning is "has no child nodes", and you can test for that as <xsl:when test="not(child::node())">. > Is there a way of error trapping for empty elements globally > using xsl? Yes, write a high-priority template rule for them: <xsl:template match="*[not(child::node())]" priority="10"> <xsl:message terminate="yes">Element is empty</xsl:message> </xsl:template> Of course this will only match an element if it is processed using <xsl:apply-templates/> Mike Kay Software AG XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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