requeth@g... wrote:
> Allo,
> 
> I'm somewhat new to XSLT but I am doing fairly well. I just got stuck
> on one item. I have created a XSL stylesheet to pull information from
> an XML file and generate a report. I would like to add functionality
> for missing data, in which if the attribute contains nothing ("") then
> the field is red. I added in a choose function which flags it red, but
> only if the attribute itself was not populated into the source file. Is
> there a way to flag both if the attribute has not populated and if it
> is just a blank attribute (""). If you know the answer to this, is
> there a term for just "" that I could search more on?

There may be more than presence or absence at work here.

If the DTD or Schema defines a default value for the attribute,
then the processor will behave as though the attribute was
specified with that value, even if it's physically absent from
the document.

<xsl:if test="@foo=''"> will only be true if
(a) foo="" is actually in the document, or
(b) the null string is declared as the default value

<xsl:if test="@foo"> will only be true if
(a) foo="" or foo="something" is actually in the document, or
(b) foo is declared with a default value (of any kind)

///Peter
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XML FAQ: http://xml.silmaril.ie/