Subject: Re: [xsl] Comparing possibly empty string sequences From: Martin Honnen <Martin.Honnen@xxxxxx> Date: Tue, 23 Mar 2010 15:54:06 +0100 |
Hey list,
a question somewhat related to my previous one. Say I have $classes, a sequence of classnames (strings), possibly empty.
Now I want to select elements which @class attribute contains any of the classnames from $class: h:*[@class/tokenize(., '\s+') = $break-classes)]
In other words, select elements where tokenized @class intersects with $class.
It works fine unless $classes is an empty sequence, in which case I get an error: "XTTE0570: An empty sequence is not allowed as the value of variable $classes"
I think zou get that error message when you use <xsl:variable name="classes" as="xsd:string+" select="..."/> and the select expression evaluates to an empty sequence. You could use as="xsd:string*" instead to allow for an empty sequence.
Martin Honnen http://msmvps.com/blogs/martin_honnen/
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