29761 2016-07-29 16:18:29 +0000 [FO31] width modifier (again) 2016-09-13 15:09:40 +0000 1 1 1 Unclassified XPath / XQuery / XSLT Functions and Operators 3.1 Candidate Recommendation PC Windows NT CLOSED WORKSFORME P2 normal --- 1 tim mike public-qt-comments oldest_to_newest 127087 0 tim 2016-07-29 16:18:29 +0000 The text says. "Whether or not a presentation modifier is included, a width modifier may be supplied. This indicates the number of characters to be included in the representation of the value." Just to clarify, do ALL characters contribute to the computation of width, or just numeric characters. e.g. does -123 have width 4 or 3. I'm particularly thinking of tests such as "format-date-045" format-date(xs:date('2016-01-01'), '[Y#.0,1-4]') which expects "2.0.1.6". That said, the text also says "If the decimal digit pattern includes a grouping separator, the output is implementation-defined" so this test and similar ones should probably go anyway. 127318 1 mike 2016-09-06 21:30:03 +0000 I think that the detailed rules are unambiguous, though the summary cited is imprecise. The rules say: (a) if there are grouping separators, all bets are off (b) otherwise, the width modifier causes the picture to be adjusted in a defined way and the rules of format-number then apply. For example Y99,4-4 is adjusted to Y9999. (c) minus signs don't come into it: none of the integer-valued components formatted by the date formatting functions is ever negative