xsl-list
[Top] [All Lists]

Re: [xsl] Comparing possibly empty string sequences

2010-03-23 09:54:31
Martynas Jusevicius wrote:
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:*[(_at_)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/

--~------------------------------------------------------------------
XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
To unsubscribe, go to: http://lists.mulberrytech.com/xsl-list/
or e-mail: <mailto:xsl-list-unsubscribe(_at_)lists(_dot_)mulberrytech(_dot_)com>
--~--

<Prev in Thread] Current Thread [Next in Thread>