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[src/trunk]: src/lib/libc/time - Padding support from FreeBSD (GNU extensions)
details: https://anonhg.NetBSD.org/src/rev/36bc41e361e6
branches: trunk
changeset: 455538:36bc41e361e6
user: christos <christos%NetBSD.org@localhost>
date: Fri Apr 05 21:27:44 2019 +0000
description:
- Padding support from FreeBSD (GNU extensions)
- add '+' for the c-locale only.
diffstat:
lib/libc/time/strftime.3 | 20 ++++-
lib/libc/time/strftime.c | 187 ++++++++++++++++++++++++++++++++++------------
2 files changed, 156 insertions(+), 51 deletions(-)
diffs (truncated from 453 to 300 lines):
diff -r 40d53377e9db -r 36bc41e361e6 lib/libc/time/strftime.3
--- a/lib/libc/time/strftime.3 Fri Apr 05 20:44:09 2019 +0000
+++ b/lib/libc/time/strftime.3 Fri Apr 05 21:27:44 2019 +0000
@@ -30,9 +30,9 @@
.\" SUCH DAMAGE.
.\"
.\" from: @(#)strftime.3 5.12 (Berkeley) 6/29/91
-.\" $NetBSD: strftime.3,v 1.34 2018/10/19 23:05:35 christos Exp $
+.\" $NetBSD: strftime.3,v 1.35 2019/04/05 21:27:44 christos Exp $
.\"
-.Dd October 19, 2018
+.Dd April 5, 2019
.Dt STRFTIME 3
.Os
.Sh NAME
@@ -201,6 +201,22 @@
locations while uninhabited, and corresponds to a zero offset when the
time zone abbreviation begins with
.Dq Li [-] .
+.It Cm %+
+is replaced by national representation of the date and time
+(the format is similar to that produced by
+.Xr date 1 ) .
+On
+.Nx
+currently this only works for the C locale.
+.It Cm %-*
+GNU libc extension.
+Do not do any padding when performing numerical outputs.
+.It Cm %_*
+GNU libc extension.
+Explicitly specify space for padding.
+.It Cm %0*
+GNU libc extension.
+Explicitly specify zero for padding.
.It Cm %%
is replaced by
.Ql % .
diff -r 40d53377e9db -r 36bc41e361e6 lib/libc/time/strftime.c
--- a/lib/libc/time/strftime.c Fri Apr 05 20:44:09 2019 +0000
+++ b/lib/libc/time/strftime.c Fri Apr 05 21:27:44 2019 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: strftime.c,v 1.43 2019/04/04 19:27:28 christos Exp $ */
+/* $NetBSD: strftime.c,v 1.44 2019/04/05 21:27:44 christos Exp $ */
/* Convert a broken-down timestamp to a string. */
@@ -35,7 +35,7 @@
static char elsieid[] = "@(#)strftime.c 7.64";
static char elsieid[] = "@(#)strftime.c 8.3";
#else
-__RCSID("$NetBSD: strftime.c,v 1.43 2019/04/04 19:27:28 christos Exp $");
+__RCSID("$NetBSD: strftime.c,v 1.44 2019/04/05 21:27:44 christos Exp $");
#endif
#endif /* LIBC_SCCS and not lint */
@@ -87,15 +87,44 @@
enum warn { IN_NONE, IN_SOME, IN_THIS, IN_ALL };
static char * _add(const char *, char *, const char *);
-static char * _conv(int, const char *, char *, const char *);
+static char * _conv(int, const char *, char *, const char *, locale_t);
static char * _fmt(const timezone_t, const char *, const struct tm *, char *,
const char *, enum warn *, locale_t);
-static char * _yconv(int, int, bool, bool, char *, const char *);
+static char * _yconv(int, int, bool, bool, char *, const char *, locale_t);
#ifndef YEAR_2000_NAME
#define YEAR_2000_NAME "CHECK_STRFTIME_FORMATS_FOR_TWO_DIGIT_YEARS"
#endif /* !defined YEAR_2000_NAME */
+#define IN_NONE 0
+#define IN_SOME 1
+#define IN_THIS 2
+#define IN_ALL 3
+
+#define PAD_DEFAULT 0
+#define PAD_LESS 1
+#define PAD_SPACE 2
+#define PAD_ZERO 3
+
+static const char fmt_padding[][4][5] = {
+ /* DEFAULT, LESS, SPACE, ZERO */
+#define PAD_FMT_MONTHDAY 0
+#define PAD_FMT_HMS 0
+#define PAD_FMT_CENTURY 0
+#define PAD_FMT_SHORTYEAR 0
+#define PAD_FMT_MONTH 0
+#define PAD_FMT_WEEKOFYEAR 0
+#define PAD_FMT_DAYOFMONTH 0
+ { "%02d", "%d", "%2d", "%02d" },
+#define PAD_FMT_SDAYOFMONTH 1
+#define PAD_FMT_SHMS 1
+ { "%2d", "%d", "%2d", "%02d" },
+#define PAD_FMT_DAYOFYEAR 2
+ { "%03d", "%d", "%3d", "%03d" },
+#define PAD_FMT_YEAR 3
+ { "%04d", "%d", "%4d", "%04d" }
+};
+
size_t
strftime_z(const timezone_t sp, char * __restrict s, size_t maxsize,
const char * __restrict format, const struct tm * __restrict t)
@@ -143,8 +172,14 @@
_fmt(const timezone_t sp, const char *format, const struct tm *t, char *pt,
const char *ptlim, enum warn *warnp, locale_t loc)
{
+ int Ealternative, Oalternative, PadIndex;
+ _TimeLocale *tptr = _TIME_LOCALE(loc);
+
for ( ; *format; ++format) {
if (*format == '%') {
+ Ealternative = 0;
+ Oalternative = 0;
+ PadIndex = PAD_DEFAULT;
label:
switch (*++format) {
case '\0':
@@ -153,26 +188,29 @@
case 'A':
pt = _add((t->tm_wday < 0 ||
t->tm_wday >= DAYSPERWEEK) ?
- "?" : _TIME_LOCALE(loc)->day[t->tm_wday],
+ "?" : tptr->day[t->tm_wday],
pt, ptlim);
continue;
case 'a':
pt = _add((t->tm_wday < 0 ||
t->tm_wday >= DAYSPERWEEK) ?
- "?" : _TIME_LOCALE(loc)->abday[t->tm_wday],
+ "?" : tptr->abday[t->tm_wday],
pt, ptlim);
continue;
case 'B':
pt = _add((t->tm_mon < 0 ||
t->tm_mon >= MONSPERYEAR) ?
- "?" : _TIME_LOCALE(loc)->mon[t->tm_mon],
+ "?" :
+ /* no alt_month in _TimeLocale */
+ (Oalternative ? tptr->mon/*alt_month*/:
+ tptr->mon)[t->tm_mon],
pt, ptlim);
continue;
case 'b':
case 'h':
pt = _add((t->tm_mon < 0 ||
t->tm_mon >= MONSPERYEAR) ?
- "?" : _TIME_LOCALE(loc)->abmon[t->tm_mon],
+ "?" : tptr->abmon[t->tm_mon],
pt, ptlim);
continue;
case 'C':
@@ -184,13 +222,13 @@
** (ado, 1993-05-24)
*/
pt = _yconv(t->tm_year, TM_YEAR_BASE,
- true, false, pt, ptlim);
+ true, false, pt, ptlim, loc);
continue;
case 'c':
{
enum warn warn2 = IN_SOME;
- pt = _fmt(sp, _TIME_LOCALE(loc)->c_fmt, t, pt,
+ pt = _fmt(sp, tptr->c_fmt, t, pt,
ptlim, &warn2, loc);
if (warn2 == IN_ALL)
warn2 = IN_THIS;
@@ -203,9 +241,15 @@
loc);
continue;
case 'd':
- pt = _conv(t->tm_mday, "%02d", pt, ptlim);
+ pt = _conv(t->tm_mday,
+ fmt_padding[PAD_FMT_DAYOFMONTH][PadIndex],
+ pt, ptlim, loc);
continue;
case 'E':
+ if (Ealternative || Oalternative)
+ break;
+ Ealternative++;
+ goto label;
case 'O':
/*
** Locale modifiers of C99 and later.
@@ -216,24 +260,34 @@
** are supposed to provide alternative
** representations.
*/
+ if (Ealternative || Oalternative)
+ break;
+ Oalternative++;
goto label;
case 'e':
- pt = _conv(t->tm_mday, "%2d", pt, ptlim);
+ pt = _conv(t->tm_mday,
+ fmt_padding[PAD_FMT_SDAYOFMONTH][PadIndex],
+ pt, ptlim, loc);
continue;
case 'F':
pt = _fmt(sp, "%Y-%m-%d", t, pt, ptlim, warnp,
loc);
continue;
case 'H':
- pt = _conv(t->tm_hour, "%02d", pt, ptlim);
+ pt = _conv(t->tm_hour,
+ fmt_padding[PAD_FMT_HMS][PadIndex],
+ pt, ptlim, loc);
continue;
case 'I':
pt = _conv((t->tm_hour % 12) ?
- (t->tm_hour % 12) : 12,
- "%02d", pt, ptlim);
+ (t->tm_hour % 12) : 12,
+ fmt_padding[PAD_FMT_HMS][PadIndex],
+ pt, ptlim, loc);
continue;
case 'j':
- pt = _conv(t->tm_yday + 1, "%03d", pt, ptlim);
+ pt = _conv(t->tm_yday + 1,
+ fmt_padding[PAD_FMT_DAYOFYEAR][PadIndex],
+ pt, ptlim, loc);
continue;
case 'k':
/*
@@ -246,7 +300,9 @@
** "%l" have been swapped.
** (ado, 1993-05-24)
*/
- pt = _conv(t->tm_hour, "%2d", pt, ptlim);
+ pt = _conv(t->tm_hour,
+ fmt_padding[PAD_FMT_SHMS][PadIndex],
+ pt, ptlim, loc);
continue;
#ifdef KITCHEN_SINK
case 'K':
@@ -268,21 +324,26 @@
*/
pt = _conv((t->tm_hour % 12) ?
(t->tm_hour % 12) : 12,
- "%2d", pt, ptlim);
+ fmt_padding[PAD_FMT_SHMS][PadIndex],
+ pt, ptlim, loc);
continue;
case 'M':
- pt = _conv(t->tm_min, "%02d", pt, ptlim);
+ pt = _conv(t->tm_min,
+ fmt_padding[PAD_FMT_HMS][PadIndex],
+ pt, ptlim, loc);
continue;
case 'm':
- pt = _conv(t->tm_mon + 1, "%02d", pt, ptlim);
+ pt = _conv(t->tm_mon + 1,
+ fmt_padding[PAD_FMT_MONTH][PadIndex],
+ pt, ptlim, loc);
continue;
case 'n':
pt = _add("\n", pt, ptlim);
continue;
case 'p':
pt = _add((t->tm_hour >= (HOURSPERDAY / 2)) ?
- _TIME_LOCALE(loc)->am_pm[1] :
- _TIME_LOCALE(loc)->am_pm[0],
+ tptr->am_pm[1] :
+ tptr->am_pm[0],
pt, ptlim);
continue;
case 'R':
@@ -290,11 +351,13 @@
loc);
continue;
case 'r':
- pt = _fmt(sp, _TIME_LOCALE(loc)->t_fmt_ampm, t,
+ pt = _fmt(sp, tptr->t_fmt_ampm, t,
pt, ptlim, warnp, loc);
continue;
case 'S':
- pt = _conv(t->tm_sec, "%02d", pt, ptlim);
+ pt = _conv(t->tm_sec,
+ fmt_padding[PAD_FMT_HMS][PadIndex],
+ pt, ptlim, loc);
continue;
case 's':
{
@@ -323,8 +386,9 @@
continue;
case 'U':
pt = _conv((t->tm_yday + DAYSPERWEEK -
- t->tm_wday) / DAYSPERWEEK,
- "%02d", pt, ptlim);
+ t->tm_wday) / DAYSPERWEEK,
+ fmt_padding[PAD_FMT_WEEKOFYEAR][PadIndex],
+ pt, ptlim, loc);
continue;
case 'u':
/*
@@ -335,7 +399,7 @@
*/
pt = _conv((t->tm_wday == 0) ?
DAYSPERWEEK : t->tm_wday,
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