[Bug 5690] CVS: Static Typing: FunctX tests needs adjustment

http://www.w3.org/Bugs/Public/show_bug.cgi?id=5690





------- Comment #3 from nick@cbcl.co.uk  2008-05-16 16:03 -------
For most of the changes I'm seeking to make static-typing specific tests using
static=name="...", but for functx-functx-substring-before-match-* I'd like to
change the return type for the normal version, unless anyone objects. So
currently we have:

declare function functx:substring-before-match
  ( $arg as xs:string? ,
    $regex as xs:string )  as xs:string {

   tokenize($arg,$regex)[1]
 } ;


The current function will return an empty sequence if $arg is empty, so really
should be defined as xs:string?