From b22eed371086b297adf9c1509850649de883d77b Mon Sep 17 00:00:00 2001 From: TAMUKI Shoichi Date: Thu, 24 Jan 2019 23:00:53 +0900 Subject: strftime: Set the default width of "%Ey" to 2 [BZ #23758] In Japanese locales, strftime's alternative year format (%Ey) produces a year numbered within a time period called an _era_. A new era typically begins when a new emperor is enthroned. The result of "%Ey" is therefore usually a one- or two-digit number. Many programs that display Japanese era dates assume that the era year is two digits wide. To improve how these programs display dates during the first nine years of a new era, change "%Ey" to pad one- digit numbers on the left with a zero. This change applies to all locales. It is expected to be harmless for other locales that use the alternative year format (e.g. lo_LA and th_TH, in which "%Ey" produces the year of the Buddhist calendar) as those calendars' year numbers are already more than two digits wide, and this is not expected to change. This change needs to be in place before 2019-05-01 CE, as a new era is scheduled to begin on that date. Reviewed-by: Zack Weinberg Reviewed-by: Rafal Luzynski ChangeLog: [BZ #23758] * manual/time.texi (strftime): Document "%Ey". * time/strftime_l.c (__strftime_internal): Set the default width padding with zero of "%Ey" to 2. --- NEWS | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'NEWS') diff --git a/NEWS b/NEWS index d863d80..aec1836 100644 --- a/NEWS +++ b/NEWS @@ -52,6 +52,14 @@ Major new features: - C-SKY ABIV2 soft-float little-endian - C-SKY ABIV2 hard-float little-endian +* strftime's default formatting of a locale's alternative year (%Ey) + has been changed to zero-pad the year to a minimum of two digits, + like "%y". This improves the display of Japanese era years during + the first nine years of a new era, and is expected to be harmless + for all other locales (only Japanese locales regularly have + alternative year numbers less than 10). Zero-padding can be + overridden with the '_' or '-' flags (which are GNU extensions). + Deprecated and removed features, and other changes affecting compatibility: * The glibc.tune tunable namespace has been renamed to glibc.cpu and the -- cgit v1.1