rainlance/amiga-tz
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first batch of changes from eggert@twinsun.com (Paul Eggert)

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SCCS-file: strftime.c
SCCS-SID: 7.5
This commit is contained in:
Arthur David Olson
1993-05-29 19:37:32 -04:00
committed by Paul Eggert
parent 527206ff02
commit 4a95d6f516
1 changed files with 47 additions and 53 deletions
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100
strftime.c
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@ -26,39 +26,40 @@ static char elsieid[] = "%W%";
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)strftime.c 5.4 (Berkeley) 3/14/89";
static const char sccsid[] = "@(#)strftime.c 5.4 (Berkeley) 3/14/89";
#endif /* LIBC_SCCS and not lint */
#include "sys/types.h"
#include "time.h"
#include "private.h"
#include "tzfile.h"
static char *afmt[] = {
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
static const char * const afmt[] = {
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
};
static char *Afmt[] = {
static const char * const Afmt[] = {
"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday",
"Saturday",
"Saturday"
};
static char *bfmt[] = {
static const char * const bfmt[] = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep",
"Oct", "Nov", "Dec",
"Oct", "Nov", "Dec"
};
static char *Bfmt[] = {
static const char * const Bfmt[] = {
"January", "February", "March", "April", "May", "June", "July",
"August", "September", "October", "November", "December",
"August", "September", "October", "November", "December"
};
static char *_add();
static char *_conv();
static char *_fmt();
static char *_add P((const char *, size_t *, char *));
static char *_conv P((int, const char *, size_t *, char *));
static char *_fmt P((const char *, const struct tm *, size_t *, char *));
size_t strftime P((char *, size_t, const char *, const struct tm *));
size_t
strftime(s, maxsize, format, t)
char *s;
size_t maxsize;
char *format;
struct tm *t;
const char *format;
const struct tm *t;
{
size_t gsize;
@ -72,8 +73,8 @@ strftime(s, maxsize, format, t)
static char *
_fmt(format, t, gsizep, pt)
char *format;
struct tm *t;
const char *format;
const struct tm *t;
size_t *gsizep;
char *pt;
{
@ -113,7 +114,7 @@ label:
** (ado, 5/24/93)
*/
pt = _conv((t->tm_year + TM_YEAR_BASE) / 100,
2, '0', gsizep, pt);
"%02d", gsizep, pt);
continue;
case 'D':
case 'x':
@ -126,12 +127,12 @@ label:
** standard calls for "date, using locale's
** date format," anything goes. Using just
** numbers (as here) makes Quakers happier.
** (ado, 5/24/93)
** This is the ISO standard date format.
*/
pt = _fmt("%m/%d/%y", t, gsizep, pt);
pt = _fmt("%Y-%m-%d", t, gsizep, pt);
continue;
case 'd':
pt = _conv(t->tm_mday, 2, '0', gsizep, pt);
pt = _conv(t->tm_mday, "%02d", gsizep, pt);
continue;
case 'E':
case 'O':
@ -148,18 +149,18 @@ label:
*/
goto label;
case 'e':
pt = _conv(t->tm_mday, 2, ' ', gsizep, pt);
pt = _conv(t->tm_mday, "%2d", gsizep, pt);
continue;
case 'H':
pt = _conv(t->tm_hour, 2, '0', gsizep, pt);
pt = _conv(t->tm_hour, "%02d", gsizep, pt);
continue;
case 'I':
pt = _conv((t->tm_hour % 12) ?
(t->tm_hour % 12) : 12,
2, '0', gsizep, pt);
"%02d", gsizep, pt);
continue;
case 'j':
pt = _conv(t->tm_yday + 1, 3, '0', gsizep, pt);
pt = _conv(t->tm_yday + 1, "%03d", gsizep, pt);
continue;
case 'k':
/*
@ -172,7 +173,7 @@ label:
** "%l" have been swapped.
** (ado, 5/24/93)
*/
pt = _conv(t->tm_hour, 2, ' ', gsizep, pt);
pt = _conv(t->tm_hour, "%2d", gsizep, pt);
continue;
#ifdef KITCHEN_SINK
case 'K':
@ -194,13 +195,13 @@ label:
*/
pt = _conv((t->tm_hour % 12) ?
(t->tm_hour % 12) : 12,
2, ' ', gsizep, pt);
"%2d", gsizep, pt);
continue;
case 'M':
pt = _conv(t->tm_min, 2, '0', gsizep, pt);
pt = _conv(t->tm_min, "%02d", gsizep, pt);
continue;
case 'm':
pt = _conv(t->tm_mon + 1, 2, '0', gsizep, pt);
pt = _conv(t->tm_mon + 1, "%02d", gsizep, pt);
continue;
case 'n':
pt = _add("\n", gsizep, pt);
@ -216,7 +217,7 @@ label:
pt = _fmt("%I:%M:%S %p", t, gsizep, pt);
continue;
case 'S':
pt = _conv(t->tm_sec, 2, '0', gsizep, pt);
pt = _conv(t->tm_sec, "%02d", gsizep, pt);
continue;
case 'T':
case 'X':
@ -227,7 +228,7 @@ label:
continue;
case 'U':
pt = _conv((t->tm_yday + 7 - t->tm_wday) / 7,
2, '0', gsizep, pt);
"%02d", gsizep, pt);
continue;
case 'u':
/*
@ -237,7 +238,7 @@ label:
** (ado, 5/24/93)
*/
pt = _conv((t->tm_wday == 0) ? 7 : t->tm_wday,
1, '0', gsizep, pt);
"%d", gsizep, pt);
continue;
case 'V':
/*
@ -260,7 +261,7 @@ label:
** 1 falls on a Thursday, are December 29-31
** of the PREVIOUS year part of week 1???
** (ado 5/24/93)
/*
**
** You are understood not to expect this.
*/
{
@ -269,7 +270,7 @@ label:
i = (t->tm_yday + 10 - (t->tm_wday ?
(t->tm_wday - 1) : 6)) / 7;
pt = _conv((i == 0) ? 53 : i,
2, '0', gsizep, pt);
"%02d", gsizep, pt);
}
continue;
case 'v':
@ -284,17 +285,17 @@ label:
pt = _conv((t->tm_yday + 7 -
(t->tm_wday ?
(t->tm_wday - 1) : 6)) / 7,
2, '0', gsizep, pt);
"%02d", gsizep, pt);
continue;
case 'w':
pt = _conv(t->tm_wday, 1, '0', gsizep, pt);
pt = _conv(t->tm_wday, "%d", gsizep, pt);
continue;
case 'y':
pt = _conv((t->tm_year + TM_YEAR_BASE) % 100,
2, '0', gsizep, pt);
"%02d", gsizep, pt);
continue;
case 'Y':
pt = _conv(t->tm_year + TM_YEAR_BASE, 4, '0',
pt = _conv(t->tm_year + TM_YEAR_BASE, "%04d",
gsizep, pt);
continue;
case 'Z':
@ -329,28 +330,21 @@ label:
}
static char *
_conv(n, width, fill, gsizep, pt)
int n, width, fill;
_conv(n, format, gsizep, pt)
int n;
const char *format;
size_t *gsizep;
char *pt;
{
char *p, *q, buf[12];
static char digits[] = "0123456789";
char buf[21]; /* Room for - 2**63 ("-9223372036854775808") + null. */
p = buf + sizeof buf;
q = (width >= sizeof buf) ? buf : (p - width - 1);
*--p = '\0';
*--p = digits[n % 10];
while (p > buf && (n /= 10) != 0)
*--p = digits[n % 10];
while (p > q)
*--p = fill;
return _add(p, gsizep, pt);
(void) sprintf(buf, format, n);
return _add(buf, gsizep, pt);
}
static char *
_add(str, gsizep, pt)
char *str;
const char *str;
size_t *gsizep;
char *pt;
{