[xsl] possible value-of return values

Subject: [xsl] possible value-of return values
From: "alex reuter" <areuter@xxxxxxxxxxxxxxxx>
Date: Mon, 30 Jul 2001 14:38:52 -0400

Given the following XML document:
<user name="Alex" password="Elephant" color=""/>
<user name="Reuter" password="Rhino"/>
I was wondering if anyone knew the distinction in return values between:
<xsl:value-of select="/root/user[@name='Alex']/@color"/>
<xsl:value-of select="/root/user[@name='Reuter']/@color"/>

My guess is they would both be null, but I need to execute logic which
hinges on whether the attribute exists and has a null value OR whether it
exists at all.

Anything you got would be great.



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