28678 2015-05-22 20:32:30 +0000 fn:nilled first signature needs to be able to return empty sequence 2016-12-16 19:55:17 +0000 1 1 1 Unclassified XPath / XQuery / XSLT Functions and Operators 3.1 Working drafts PC Windows NT CLOSED FIXED P2 minor --- 1 pwalmsley mike public-qt-comments oldest_to_newest 120420 0 pwalmsley 2015-05-22 20:32:30 +0000 The first signature of fn:nilled (with no parameters) doesn't allow it to return the empty sequence, but it seems it should allow it. If $arg is omitted, and the context item is a node but not an element node, it should return the empty sequence according to the rules described. e.g. $mydoc/foo/@bar/nilled() 120457 1 mike 2015-05-23 19:00:35 +0000 I agree. 120595 2 mike 2015-05-29 09:10:38 +0000 Thanks, Priscilla. I have fixed this, and I decided to deem it editorial, as the specification of the function makes it pretty clear that a return type of "xs:boolean?" is necessary. 120596 3 mike 2015-05-29 09:12:06 +0000 By the way, I checked that there are test cases where nilled() with no arguments returns an empty sequence, and there are several.