Header And Logo
|
#include "postgres.h"#include <fcntl.h>#include <locale.h>#include "private.h"#include "tzfile.h"
Go to the source code of this file.
Data Structures | |
| struct | lc_time_T |
Defines | |
| #define | Locale (&C_time_locale) |
| #define | IN_NONE 0 |
| #define | IN_SOME 1 |
| #define | IN_THIS 2 |
| #define | IN_ALL 3 |
| #define | DIVISOR 100 |
Functions | |
| static char * | _add (const char *, char *, const char *) |
| static char * | _conv (int, const char *, char *, const char *) |
| static char * | _fmt (const char *, const struct pg_tm *, char *, const char *, int *) |
| static char * | _yconv (const int, const int, const int, const int, char *, const char *const) |
| size_t | pg_strftime (char *s, size_t maxsize, const char *format, const struct pg_tm *t) |
Variables | |
| static struct lc_time_T | C_time_locale |
| #define DIVISOR 100 |
Referenced by _yconv().
| #define IN_ALL 3 |
Definition at line 101 of file strftime.c.
Referenced by _fmt().
| #define IN_NONE 0 |
Definition at line 98 of file strftime.c.
| #define IN_SOME 1 |
Definition at line 99 of file strftime.c.
| #define IN_THIS 2 |
Definition at line 100 of file strftime.c.
| #define Locale (&C_time_locale) |
Definition at line 44 of file strftime.c.
Referenced by _fmt().
| static char * _add | ( | const char * | str, | |
| char * | pt, | |||
| const char * | ptlim | |||
| ) | [static] |
Definition at line 481 of file strftime.c.
Referenced by _conv(), _fmt(), and _yconv().
{
while (pt < ptlim && (*pt = *str++) != '\0')
++pt;
return pt;
}
| static char * _conv | ( | int | n, | |
| const char * | format, | |||
| char * | pt, | |||
| const char * | ptlim | |||
| ) | [static] |
Definition at line 472 of file strftime.c.
References _add(), buf, and INT_STRLEN_MAXIMUM.
Referenced by _fmt(), and _yconv().
{
char buf[INT_STRLEN_MAXIMUM(int) +1];
(void) sprintf(buf, format, n);
return _add(buf, pt, ptlim);
}
| static char * _fmt | ( | const char * | format, | |
| const struct pg_tm * | t, | |||
| char * | pt, | |||
| const char * | ptlim, | |||
| int * | warnp | |||
| ) | [static] |
Definition at line 120 of file strftime.c.
References _add(), _conv(), _yconv(), DAYSPERLYEAR, DAYSPERWEEK, HOURSPERDAY, IN_ALL, isleap_sum, label, Locale, MONSPERYEAR, NULL, sign, pg_tm::tm_gmtoff, pg_tm::tm_hour, pg_tm::tm_isdst, pg_tm::tm_mday, pg_tm::tm_min, pg_tm::tm_mon, pg_tm::tm_sec, pg_tm::tm_wday, pg_tm::tm_yday, pg_tm::tm_year, TM_YEAR_BASE, pg_tm::tm_zone, and lc_time_T::wday.
Referenced by pg_strftime().
{
for (; *format; ++format)
{
if (*format == '%')
{
label:
switch (*++format)
{
case '\0':
--format;
break;
case 'A':
pt = _add((t->tm_wday < 0 ||
t->tm_wday >= DAYSPERWEEK) ?
"?" : Locale->weekday[t->tm_wday],
pt, ptlim);
continue;
case 'a':
pt = _add((t->tm_wday < 0 ||
t->tm_wday >= DAYSPERWEEK) ?
"?" : Locale->wday[t->tm_wday],
pt, ptlim);
continue;
case 'B':
pt = _add((t->tm_mon < 0 ||
t->tm_mon >= MONSPERYEAR) ?
"?" : Locale->month[t->tm_mon],
pt, ptlim);
continue;
case 'b':
case 'h':
pt = _add((t->tm_mon < 0 ||
t->tm_mon >= MONSPERYEAR) ?
"?" : Locale->mon[t->tm_mon],
pt, ptlim);
continue;
case 'C':
/*
* %C used to do a... _fmt("%a %b %e %X %Y", t);
* ...whereas now POSIX 1003.2 calls for something
* completely different. (ado, 1993-05-24)
*/
pt = _yconv(t->tm_year, TM_YEAR_BASE, 1, 0,
pt, ptlim);
continue;
case 'c':
{
int warn2 = IN_SOME;
pt = _fmt(Locale->c_fmt, t, pt, ptlim, &warn2);
if (warn2 == IN_ALL)
warn2 = IN_THIS;
if (warn2 > *warnp)
*warnp = warn2;
}
continue;
case 'D':
pt = _fmt("%m/%d/%y", t, pt, ptlim, warnp);
continue;
case 'd':
pt = _conv(t->tm_mday, "%02d", pt, ptlim);
continue;
case 'E':
case 'O':
/*
* C99 locale modifiers. The sequences %Ec %EC %Ex %EX
* %Ey %EY %Od %oe %OH %OI %Om %OM %OS %Ou %OU %OV %Ow
* %OW %Oy are supposed to provide alternate
* representations.
*/
goto label;
case 'e':
pt = _conv(t->tm_mday, "%2d", pt, ptlim);
continue;
case 'F':
pt = _fmt("%Y-%m-%d", t, pt, ptlim, warnp);
continue;
case 'H':
pt = _conv(t->tm_hour, "%02d", pt, ptlim);
continue;
case 'I':
pt = _conv((t->tm_hour % 12) ?
(t->tm_hour % 12) : 12,
"%02d", pt, ptlim);
continue;
case 'j':
pt = _conv(t->tm_yday + 1, "%03d", pt, ptlim);
continue;
case 'k':
/*
* This used to be... _conv(t->tm_hour % 12 ? t->tm_hour
* % 12 : 12, 2, ' '); ...and has been changed to the
* below to match SunOS 4.1.1 and Arnold Robbins' strftime
* version 3.0. That is, "%k" and "%l" have been swapped.
* (ado, 1993-05-24)
*/
pt = _conv(t->tm_hour, "%2d", pt, ptlim);
continue;
#ifdef KITCHEN_SINK
case 'K':
/*
* * After all this time, still unclaimed!
*/
pt = _add("kitchen sink", pt, ptlim);
continue;
#endif /* defined KITCHEN_SINK */
case 'l':
/*
* This used to be... _conv(t->tm_hour, 2, ' '); ...and
* has been changed to the below to match SunOS 4.1.1 and
* Arnold Robbin's strftime version 3.0. That is, "%k" and
* "%l" have been swapped. (ado, 1993-05-24)
*/
pt = _conv((t->tm_hour % 12) ?
(t->tm_hour % 12) : 12,
"%2d", pt, ptlim);
continue;
case 'M':
pt = _conv(t->tm_min, "%02d", pt, ptlim);
continue;
case 'm':
pt = _conv(t->tm_mon + 1, "%02d", pt, ptlim);
continue;
case 'n':
pt = _add("\n", pt, ptlim);
continue;
case 'p':
pt = _add((t->tm_hour >= (HOURSPERDAY / 2)) ?
Locale->pm :
Locale->am,
pt, ptlim);
continue;
case 'R':
pt = _fmt("%H:%M", t, pt, ptlim, warnp);
continue;
case 'r':
pt = _fmt("%I:%M:%S %p", t, pt, ptlim, warnp);
continue;
case 'S':
pt = _conv(t->tm_sec, "%02d", pt, ptlim);
continue;
case 'T':
pt = _fmt("%H:%M:%S", t, pt, ptlim, warnp);
continue;
case 't':
pt = _add("\t", pt, ptlim);
continue;
case 'U':
pt = _conv((t->tm_yday + DAYSPERWEEK -
t->tm_wday) / DAYSPERWEEK,
"%02d", pt, ptlim);
continue;
case 'u':
/*
* From Arnold Robbins' strftime version 3.0: "ISO 8601:
* Weekday as a decimal number [1 (Monday) - 7]" (ado,
* 1993-05-24)
*/
pt = _conv((t->tm_wday == 0) ?
DAYSPERWEEK : t->tm_wday,
"%d", pt, ptlim);
continue;
case 'V': /* ISO 8601 week number */
case 'G': /* ISO 8601 year (four digits) */
case 'g': /* ISO 8601 year (two digits) */
/*
* From Arnold Robbins' strftime version 3.0: "the week number of the
* year (the first Monday as the first day of week 1) as a decimal number
* (01-53)."
* (ado, 1993-05-24)
*
* From "http://www.ft.uni-erlangen.de/~mskuhn/iso-time.html" by Markus Kuhn:
* "Week 01 of a year is per definition the first week which has the
* Thursday in this year, which is equivalent to the week which contains
* the fourth day of January. In other words, the first week of a new year
* is the week which has the majority of its days in the new year. Week 01
* might also contain days from the previous year and the week before week
* 01 of a year is the last week (52 or 53) of the previous year even if
* it contains days from the new year. A week starts with Monday (day 1)
* and ends with Sunday (day 7). For example, the first week of the year
* 1997 lasts from 1996-12-30 to 1997-01-05..."
* (ado, 1996-01-02)
*/
{
int year;
int base;
int yday;
int wday;
int w;
year = t->tm_year;
base = TM_YEAR_BASE;
yday = t->tm_yday;
wday = t->tm_wday;
for (;;)
{
int len;
int bot;
int top;
len = isleap_sum(year, base) ?
DAYSPERLYEAR :
DAYSPERNYEAR;
/*
* What yday (-3 ... 3) does the ISO year begin
* on?
*/
bot = ((yday + 11 - wday) %
DAYSPERWEEK) - 3;
/*
* What yday does the NEXT ISO year begin on?
*/
top = bot -
(len % DAYSPERWEEK);
if (top < -3)
top += DAYSPERWEEK;
top += len;
if (yday >= top)
{
++base;
w = 1;
break;
}
if (yday >= bot)
{
w = 1 + ((yday - bot) /
DAYSPERWEEK);
break;
}
--base;
yday += isleap_sum(year, base) ?
DAYSPERLYEAR :
DAYSPERNYEAR;
}
if (*format == 'V')
pt = _conv(w, "%02d",
pt, ptlim);
else if (*format == 'g')
{
*warnp = IN_ALL;
pt = _yconv(year, base, 0, 1,
pt, ptlim);
}
else
pt = _yconv(year, base, 1, 1,
pt, ptlim);
}
continue;
case 'v':
/*
* From Arnold Robbins' strftime version 3.0: "date as
* dd-bbb-YYYY" (ado, 1993-05-24)
*/
pt = _fmt("%e-%b-%Y", t, pt, ptlim, warnp);
continue;
case 'W':
pt = _conv((t->tm_yday + DAYSPERWEEK -
(t->tm_wday ?
(t->tm_wday - 1) :
(DAYSPERWEEK - 1))) / DAYSPERWEEK,
"%02d", pt, ptlim);
continue;
case 'w':
pt = _conv(t->tm_wday, "%d", pt, ptlim);
continue;
case 'X':
pt = _fmt(Locale->X_fmt, t, pt, ptlim, warnp);
continue;
case 'x':
{
int warn2 = IN_SOME;
pt = _fmt(Locale->x_fmt, t, pt, ptlim, &warn2);
if (warn2 == IN_ALL)
warn2 = IN_THIS;
if (warn2 > *warnp)
*warnp = warn2;
}
continue;
case 'y':
*warnp = IN_ALL;
pt = _yconv(t->tm_year, TM_YEAR_BASE, 0, 1,
pt, ptlim);
continue;
case 'Y':
pt = _yconv(t->tm_year, TM_YEAR_BASE, 1, 1,
pt, ptlim);
continue;
case 'Z':
if (t->tm_zone != NULL)
pt = _add(t->tm_zone, pt, ptlim);
/*
* C99 says that %Z must be replaced by the empty string
* if the time zone is not determinable.
*/
continue;
case 'z':
{
int diff;
char const *sign;
if (t->tm_isdst < 0)
continue;
diff = t->tm_gmtoff;
if (diff < 0)
{
sign = "-";
diff = -diff;
}
else
sign = "+";
pt = _add(sign, pt, ptlim);
diff /= 60;
pt = _conv((diff / 60) * 100 + diff % 60,
"%04d", pt, ptlim);
}
continue;
case '+':
pt = _fmt(Locale->date_fmt, t, pt, ptlim,
warnp);
continue;
case '%':
/*
* X311J/88-090 (4.12.3.5): if conversion char is
* undefined, behavior is undefined. Print out the
* character itself as printf(3) also does.
*/
default:
break;
}
}
if (pt == ptlim)
break;
*pt++ = *format;
}
return pt;
}
| static char * _yconv | ( | const int | a, | |
| const int | b, | |||
| const int | convert_top, | |||
| const int | convert_yy, | |||
| char * | pt, | |||
| const char * const | ptlim | |||
| ) | [static] |
Definition at line 496 of file strftime.c.
References _add(), _conv(), and DIVISOR.
Referenced by _fmt().
{
int lead;
int trail;
#define DIVISOR 100
trail = a % DIVISOR + b % DIVISOR;
lead = a / DIVISOR + b / DIVISOR + trail / DIVISOR;
trail %= DIVISOR;
if (trail < 0 && lead > 0)
{
trail += DIVISOR;
--lead;
}
else if (lead < 0 && trail > 0)
{
trail -= DIVISOR;
++lead;
}
if (convert_top)
{
if (lead == 0 && trail < 0)
pt = _add("-0", pt, ptlim);
else
pt = _conv(lead, "%02d", pt, ptlim);
}
if (convert_yy)
pt = _conv(((trail < 0) ? -trail : trail), "%02d", pt, ptlim);
return pt;
}
| size_t pg_strftime | ( | char * | s, | |
| size_t | maxsize, | |||
| const char * | format, | |||
| const struct pg_tm * | t | |||
| ) |
Definition at line 105 of file strftime.c.
Referenced by do_pg_start_backup(), do_pg_stop_backup(), log_line_prefix(), logfile_getname(), setup_formatted_log_time(), setup_formatted_start_time(), str_time(), and timeofday().
struct lc_time_T C_time_locale [static] |
Definition at line 46 of file strftime.c.
1.7.1