On 06/10/16 12:53, Pádraig Brady wrote: > On 06/10/16 11:11, john woods wrote: >> date +%YW%V gives week and year; it would be nice if date +%YQ%q could >> return, eg 2016Q3 as having a quarters code in date would save AWKwardness >> or shell arithmetic. >> >> Perhaps we could have >> %q 1,2,3,4 >> %Q 1st quarter; 2nd quarter; 3rd quarter; 4th quarter >> >> Regards ... > > This is one of those marginal calls. > > It's not that awkward to get the quarter number: $(( ($(date +%-m)-1)/3+1 )) > But I agree it would be useful to give the number directly. > > Note you may want to raise your proposal with the glibc team also in their > strftime(3) interface; coreutils is hesitant to add new % modifiers in > date(1) without prior practice from C libraries. > > Note ruby uses %Q to give the number of milliseconds since epoch. > So we might skip that? > BTW 1 -> 1st etc. functionality might be useful to add to numfmt(1). > > Note perl Date::Format uses %q to give the quarter number, starting with 1 > > I'd be 60:40 for adding it.
Propose patch attached, which we can add after the corresponding gnulib patch lands.
>From ff8c54eae9578f64b1bac70289087191bbad2382 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?P=C3=A1draig=20Brady?= <[email protected]> Date: Wed, 19 Oct 2016 14:57:57 -0700 Subject: [PATCH] date: add %q to output the quarter of the year * doc/coreutils.texi (date invocation): Document %q. * src/date.c (usage): Likewise. * tests/misc/date.pl: Add a test case. * NEWS: Mention the new feature. --- NEWS | 2 ++ doc/coreutils.texi | 2 ++ src/date.c | 1 + tests/misc/date.pl | 5 +++++ 4 files changed, 10 insertions(+) diff --git a/NEWS b/NEWS index 9548de8..8f5ce06 100644 --- a/NEWS +++ b/NEWS @@ -90,6 +90,8 @@ GNU coreutils NEWS -*- outline -*- date now accepts the --debug option, to annotate the parsed date string, display timezone information, and warn about potential misuse. + date now accepts the %q format to output the quarter of the year. + * Noteworthy changes in release 8.25 (2016-01-20) [stable] diff --git a/doc/coreutils.texi b/doc/coreutils.texi index 95419b4..f1019d9 100644 --- a/doc/coreutils.texi +++ b/doc/coreutils.texi @@ -15196,6 +15196,8 @@ same as @samp{%b} day of year (@samp{001}@dots{}@samp{366}) @item %m month (@samp{01}@dots{}@samp{12}) +@item %q +quarter of year (@samp{1}@dots{}@samp{4}) @item %u day of week (@samp{1}@dots{}@samp{7}) with @samp{1} corresponding to Monday @item %U diff --git a/src/date.c b/src/date.c index 9598fc6..ddb011e 100644 --- a/src/date.c +++ b/src/date.c @@ -214,6 +214,7 @@ FORMAT controls the output. Interpreted sequences are:\n\ %N nanoseconds (000000000..999999999)\n\ %p locale's equivalent of either AM or PM; blank if not known\n\ %P like %p, but lower case\n\ + %q quarter of year (1..4)\n\ %r locale's 12-hour clock time (e.g., 11:11:04 PM)\n\ %R 24-hour hour and minute; same as %H:%M\n\ %s seconds since 1970-01-01 00:00:00 UTC\n\ diff --git a/tests/misc/date.pl b/tests/misc/date.pl index 4449a48..b53ca81 100755 --- a/tests/misc/date.pl +++ b/tests/misc/date.pl @@ -86,6 +86,11 @@ my @Tests = ['W92-2', "--date '1992-1-5' +%W", {OUT=>"00"}], ['W92-3', "--date '1992-1-6' +%W", {OUT=>"01"}], + ['q-1', "--date '1000-1-1' +%q", {OUT=>"1"}], + ['q-2', "--date '1000-4-1' +%q", {OUT=>"2"}], + ['q-3', "--date '1000-7-1' +%q", {OUT=>"3"}], + ['q-4', "--date '1000-10-1' +%q", {OUT=>"4"}], + ['millen-1', "--date '1998-1-1 3 years' +%Y", {OUT=>"2001"}], ['rel-0', "-d '$d1 now' '+%Y-%m-%d %T'", {OUT=>"$d0 $t0"}], -- 2.5.5
