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RE: [xsl] Non Existent attribute, and other things.
Subject: RE: [xsl] Non Existent attribute, and other things. From: "Michael Kay" <mhkay@xxxxxxxxxxxx> Date: Mon, 12 Mar 2001 13:36:06 -0000 |
> So I end up doing... > > count(@value) = 0 or not(number(@value)) To test if the value is present and non-zero, do boolean(@value!=0) > could somebody explain what Jeni's suggestion meant when it > said... > > key('Ps', $name)[count(.|$Ps) = count($Ps)] > > ...as I really don't understand it. The predicate [count(.|$Ps) = count($Ps)] is true for any node that is a member of the node-set $Ps, and false for any one that isn't. Yes, this syntax really IS awkward! > > Finally I thought there was an equivalent to the C ?: notation > in XSL but I can't seem to find it. No, there isn't! It's on the requirements list for 2.0 On several occasions in my > code I end with the same fragment. > > <xsl:variable name="shorter"> > <xsl:choose> > <xsl:when test="@short"> > <xsl:value-of select="@short"/> > </xsl:when> > <xsl:otherwise> > <xsl:value-of select="@name"/> > </xsl:otherwise> > </xsl:choose> > </xsl:variable> > If you prefer brevity to readability you can write concat(@short, substring(@name, 1, not(@short)*100000)) I'll leave you to study the specs to work out why that works! Mike Kay Software AG XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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