summaryrefslogtreecommitdiff
path: root/libc/misc/time/strptime.c
diff options
context:
space:
mode:
Diffstat (limited to 'libc/misc/time/strptime.c')
-rw-r--r--libc/misc/time/strptime.c983
1 files changed, 0 insertions, 983 deletions
diff --git a/libc/misc/time/strptime.c b/libc/misc/time/strptime.c
deleted file mode 100644
index 749eb797d..000000000
--- a/libc/misc/time/strptime.c
+++ /dev/null
@@ -1,983 +0,0 @@
-/* Convert a string representation of time to a time value.
- Copyright (C) 1996-2000, 2001 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
-/* XXX This version of the implementation is not really complete.
- Some of the fields cannot add information alone. But if seeing
- some of them in the same format (such as year, week and weekday)
- this is enough information for determining the date. */
-
-#include <features.h>
-#include <ctype.h>
-#include <langinfo.h>
-#include <limits.h>
-#include <string.h>
-#include <time.h>
-
-#undef ENABLE_ERA_JUNK
-
-
-#define match_char(ch1, ch2) if (ch1 != ch2) return NULL
-#if defined __GNUC__ && __GNUC__ >= 2
-# define match_string(cs1, s2) \
- ({ size_t len = strlen (cs1); \
- int result = strncasecmp ((cs1), (s2), len) == 0; \
- if (result) (s2) += len; \
- result; })
-#else
-/* Oh come on. Get a reasonable compiler. */
-# define match_string(cs1, s2) \
- (strncasecmp ((cs1), (s2), strlen (cs1)) ? 0 : ((s2) += strlen (cs1), 1))
-#endif
-/* We intentionally do not use isdigit() for testing because this will
- lead to problems with the wide character version. */
-#define get_number(from, to, n) \
- do { \
- int __n = n; \
- val = 0; \
- while (*rp == ' ') \
- ++rp; \
- if (*rp < '0' || *rp > '9') \
- return NULL; \
- do { \
- val *= 10; \
- val += *rp++ - '0'; \
- } while (--__n > 0 && val * 10 <= to && *rp >= '0' && *rp <= '9'); \
- if (val < from || val > to) \
- return NULL; \
- } while (0)
-#ifdef __UCLIBC_HAS_LOCALE__
-# define get_alt_number(from, to, n) \
- ({ \
- __label__ do_normal; \
- \
- if (*decided != raw) \
- { \
- val = _nl_parse_alt_digit (&rp); \
- if (val == -1 && *decided != loc) \
- { \
- *decided = loc; \
- goto do_normal; \
- } \
- if (val < from || val > to) \
- return NULL; \
- } \
- else \
- { \
- do_normal: \
- get_number (from, to, n); \
- } \
- 0; \
- })
-#else
-# define get_alt_number(from, to, n) \
- /* We don't have the alternate representation. */ \
- get_number(from, to, n)
-#endif
-#define recursive(new_fmt) \
- (*(new_fmt) != '\0' \
- && (rp = __strptime_internal (rp, (new_fmt), tm, decided, era_cnt)) != NULL)
-
-
-#ifdef __UCLIBC_HAS_LOCALE__
-/* This is defined in locale/C-time.c in the GNU libc. */
-extern const struct locale_data _nl_C_LC_TIME;
-extern const unsigned short int __mon_yday[2][13];
-
-# define __weekday_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (DAY_1)].string)
-# define __ab_weekday_name \
- (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABDAY_1)].string)
-# define __month_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (MON_1)].string)
-# define __ab_month_name (&_nl_C_LC_TIME.values[_NL_ITEM_INDEX (ABMON_1)].string)
-# define HERE_D_T_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (D_T_FMT)].string)
-# define HERE_D_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (D_FMT)].string)
-# define HERE_AM_STR (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (AM_STR)].string)
-# define HERE_PM_STR (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (PM_STR)].string)
-# define HERE_T_FMT_AMPM \
- (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (T_FMT_AMPM)].string)
-# define HERE_T_FMT (_nl_C_LC_TIME.values[_NL_ITEM_INDEX (T_FMT)].string)
-
-# define strncasecmp(s1, s2, n) __strncasecmp (s1, s2, n)
-#else
-extern char const __weekday_name[][10];
-extern char const __ab_weekday_name[][4];
-extern char const __month_name[][10];
-extern char const __ab_month_name[][4];
-extern const unsigned short int __mon_yday[2][13];
-# define HERE_D_T_FMT "%a %b %e %H:%M:%S %Y"
-# define HERE_D_FMT "%m/%d/%y"
-# define HERE_AM_STR "AM"
-# define HERE_PM_STR "PM"
-# define HERE_T_FMT_AMPM "%I:%M:%S %p"
-# define HERE_T_FMT "%H:%M:%S"
-#endif
-
-/* Status of lookup: do we use the locale data or the raw data? */
-enum locale_status { not, loc, raw };
-
-
-#ifndef __isleap
-/* Nonzero if YEAR is a leap year (every 4 years,
- except every 100th isn't, and every 400th is). */
-# define __isleap(year) \
- ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
-#endif
-
-/* Compute the day of the week. */
-static void
-day_of_the_week (struct tm *tm)
-{
- /* We know that January 1st 1970 was a Thursday (= 4). Compute the
- the difference between this data in the one on TM and so determine
- the weekday. */
- int corr_year = 1900 + tm->tm_year - (tm->tm_mon < 2);
- int wday = (-473
- + (365 * (tm->tm_year - 70))
- + (corr_year / 4)
- - ((corr_year / 4) / 25) + ((corr_year / 4) % 25 < 0)
- + (((corr_year / 4) / 25) / 4)
- + __mon_yday[0][tm->tm_mon]
- + tm->tm_mday - 1);
- tm->tm_wday = ((wday % 7) + 7) % 7;
-}
-
-/* Compute the day of the year. */
-static void
-day_of_the_year (struct tm *tm)
-{
- tm->tm_yday = (__mon_yday[__isleap (1900 + tm->tm_year)][tm->tm_mon]
- + (tm->tm_mday - 1));
-}
-
-
-static char * __strptime_internal (rp, fmt, tm, decided, era_cnt)
- const char *rp;
- const char *fmt;
- struct tm *tm;
- enum locale_status *decided;
- int era_cnt;
-{
- const char *rp_backup;
- int cnt;
- size_t val;
- int have_I, is_pm;
- int century, want_century;
- int want_era;
- int have_wday, want_xday;
- int have_yday;
- int have_mon, have_mday;
- int have_uweek, have_wweek;
- int week_no;
-#ifdef ENABLE_ERA_JUNK
- size_t num_eras;
- struct era_entry *era;
-
- era = NULL;
-#endif
- have_I = is_pm = 0;
- century = -1;
- want_century = 0;
- want_era = 0;
- week_no = 0;
-
- have_wday = want_xday = have_yday = have_mon = have_mday = have_uweek = 0;
- have_wweek = 0;
-
- while (*fmt != '\0')
- {
- /* A white space in the format string matches 0 more or white
- space in the input string. */
- if (isspace (*fmt))
- {
- while (isspace (*rp))
- ++rp;
- ++fmt;
- continue;
- }
-
- /* Any character but `%' must be matched by the same character
- in the iput string. */
- if (*fmt != '%')
- {
- match_char (*fmt++, *rp++);
- continue;
- }
-
- ++fmt;
-#ifndef __UCLIBC_HAS_LOCALE__
- /* We need this for handling the `E' modifier. */
-start_over:
-#endif
-
- /* Make back up of current processing pointer. */
- rp_backup = rp;
-
- switch (*fmt++)
- {
- case '%':
- /* Match the `%' character itself. */
- match_char ('%', *rp++);
- break;
- case 'a':
- case 'A':
- /* Match day of week. */
- for (cnt = 0; cnt < 7; ++cnt)
- {
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided !=raw)
- {
- if (match_string (_NL_CURRENT (LC_TIME, DAY_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, DAY_1 + cnt),
- __weekday_name[cnt]))
- *decided = loc;
- break;
- }
- if (match_string (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, ABDAY_1 + cnt),
- __ab_weekday_name[cnt]))
- *decided = loc;
- break;
- }
- }
-#endif
- if (*decided != loc
- && (match_string (__weekday_name[cnt], rp)
- || match_string (__ab_weekday_name[cnt], rp)))
- {
- *decided = raw;
- break;
- }
- }
- if (cnt == 7)
- /* Does not match a weekday name. */
- return NULL;
- tm->tm_wday = cnt;
- have_wday = 1;
- break;
- case 'b':
- case 'B':
- case 'h':
- /* Match month name. */
- for (cnt = 0; cnt < 12; ++cnt)
- {
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided !=raw)
- {
- if (match_string (_NL_CURRENT (LC_TIME, MON_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, MON_1 + cnt),
- __month_name[cnt]))
- *decided = loc;
- break;
- }
- if (match_string (_NL_CURRENT (LC_TIME, ABMON_1 + cnt), rp))
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, ABMON_1 + cnt),
- __ab_month_name[cnt]))
- *decided = loc;
- break;
- }
- }
-#endif
- if (match_string (__month_name[cnt], rp)
- || match_string (__ab_month_name[cnt], rp))
- {
- *decided = raw;
- break;
- }
- }
- if (cnt == 12)
- /* Does not match a month name. */
- return NULL;
- tm->tm_mon = cnt;
- want_xday = 1;
- break;
- case 'c':
- /* Match locale's date and time format. */
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, D_T_FMT)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (*decided == not &&
- strcmp (_NL_CURRENT (LC_TIME, D_T_FMT), HERE_D_T_FMT))
- *decided = loc;
- want_xday = 1;
- break;
- }
- *decided = raw;
- }
-#endif
- if (!recursive (HERE_D_T_FMT))
- return NULL;
- want_xday = 1;
- break;
- case 'C':
- /* Match century number. */
-#ifdef __UCLIBC_HAS_LOCALE__
-match_century:
-#endif
- get_number (0, 99, 2);
- century = val;
- want_xday = 1;
- break;
- case 'd':
- case 'e':
- /* Match day of month. */
- get_number (1, 31, 2);
- tm->tm_mday = val;
- have_mday = 1;
- want_xday = 1;
- break;
- case 'F':
- if (!recursive ("%Y-%m-%d"))
- return NULL;
- want_xday = 1;
- break;
- case 'x':
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, D_FMT)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (*decided == not
- && strcmp (_NL_CURRENT (LC_TIME, D_FMT), HERE_D_FMT))
- *decided = loc;
- want_xday = 1;
- break;
- }
- *decided = raw;
- }
-#endif
- /* Fall through. */
- case 'D':
- /* Match standard day format. */
- if (!recursive (HERE_D_FMT))
- return NULL;
- want_xday = 1;
- break;
- case 'k':
- case 'H':
- /* Match hour in 24-hour clock. */
- get_number (0, 23, 2);
- tm->tm_hour = val;
- have_I = 0;
- break;
- case 'l':
- /* Match hour in 12-hour clock. GNU extension. */
- case 'I':
- /* Match hour in 12-hour clock. */
- get_number (1, 12, 2);
- tm->tm_hour = val % 12;
- have_I = 1;
- break;
- case 'j':
- /* Match day number of year. */
- get_number (1, 366, 3);
- tm->tm_yday = val - 1;
- have_yday = 1;
- break;
- case 'm':
- /* Match number of month. */
- get_number (1, 12, 2);
- tm->tm_mon = val - 1;
- have_mon = 1;
- want_xday = 1;
- break;
- case 'M':
- /* Match minute. */
- get_number (0, 59, 2);
- tm->tm_min = val;
- break;
- case 'n':
- case 't':
- /* Match any white space. */
- while (isspace (*rp))
- ++rp;
- break;
- case 'p':
- /* Match locale's equivalent of AM/PM. */
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided != raw)
- {
- if (match_string (_NL_CURRENT (LC_TIME, AM_STR), rp))
- {
- if (strcmp (_NL_CURRENT (LC_TIME, AM_STR), HERE_AM_STR))
- *decided = loc;
- break;
- }
- if (match_string (_NL_CURRENT (LC_TIME, PM_STR), rp))
- {
- if (strcmp (_NL_CURRENT (LC_TIME, PM_STR), HERE_PM_STR))
- *decided = loc;
- is_pm = 1;
- break;
- }
- *decided = raw;
- }
-#endif
- if (!match_string (HERE_AM_STR, rp))
- if (match_string (HERE_PM_STR, rp))
- is_pm = 1;
- else
- return NULL;
- break;
- case 'r':
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, T_FMT_AMPM)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (*decided == not &&
- strcmp (_NL_CURRENT (LC_TIME, T_FMT_AMPM),
- HERE_T_FMT_AMPM))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
-#endif
- if (!recursive (HERE_T_FMT_AMPM))
- return NULL;
- break;
- case 'R':
- if (!recursive ("%H:%M"))
- return NULL;
- break;
- case 's':
- {
- /* The number of seconds may be very high so we cannot use
- the `get_number' macro. Instead read the number
- character for character and construct the result while
- doing this. */
- time_t secs = 0;
- if (*rp < '0' || *rp > '9')
- /* We need at least one digit. */
- return NULL;
-
- do
- {
- secs *= 10;
- secs += *rp++ - '0';
- }
- while (*rp >= '0' && *rp <= '9');
-
- if (localtime_r (&secs, tm) == NULL)
- /* Error in function. */
- return NULL;
- }
- break;
- case 'S':
- get_number (0, 61, 2);
- tm->tm_sec = val;
- break;
- case 'X':
-#ifdef __UCLIBC_HAS_LOCALE__
- if (*decided != raw)
- {
- if (!recursive (_NL_CURRENT (LC_TIME, T_FMT)))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (_NL_CURRENT (LC_TIME, T_FMT), HERE_T_FMT))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
-#endif
- /* Fall through. */
- case 'T':
- if (!recursive (HERE_T_FMT))
- return NULL;
- break;
- case 'u':
- get_number (1, 7, 1);
- tm->tm_wday = val % 7;
- have_wday = 1;
- break;
- case 'g':
- get_number (0, 99, 2);
- /* XXX This cannot determine any field in TM. */
- break;
- case 'G':
- if (*rp < '0' || *rp > '9')
- return NULL;
- /* XXX Ignore the number since we would need some more
- information to compute a real date. */
- do
- ++rp;
- while (*rp >= '0' && *rp <= '9');
- break;
- case 'U':
- get_number (0, 53, 2);
- week_no = val;
- have_uweek = 1;
- break;
- case 'W':
- get_number (0, 53, 2);
- week_no = val;
- have_wweek = 1;
- break;
- case 'V':
- get_number (0, 53, 2);
- /* XXX This cannot determine any field in TM without some
- information. */
- break;
- case 'w':
- /* Match number of weekday. */
- get_number (0, 6, 1);
- tm->tm_wday = val;
- have_wday = 1;
- break;
- case 'y':
-#ifdef __UCLIBC_HAS_LOCALE__
-match_year_in_century:
-#endif
- /* Match year within century. */
- get_number (0, 99, 2);
- /* The "Year 2000: The Millennium Rollover" paper suggests that
- values in the range 69-99 refer to the twentieth century. */
- tm->tm_year = val >= 69 ? val : val + 100;
- /* Indicate that we want to use the century, if specified. */
- want_century = 1;
- want_xday = 1;
- break;
- case 'Y':
- /* Match year including century number. */
- get_number (0, 9999, 4);
- tm->tm_year = val - 1900;
- want_century = 0;
- want_xday = 1;
- break;
- case 'Z':
- /* XXX How to handle this? */
- break;
- case 'E':
-#ifdef __UCLIBC_HAS_LOCALE__
- switch (*fmt++)
- {
- case 'c':
- /* Match locale's alternate date and time format. */
- if (*decided != raw)
- {
- const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_T_FMT);
-
- if (*fmt == '\0')
- fmt = _NL_CURRENT (LC_TIME, D_T_FMT);
-
- if (!recursive (fmt))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (fmt, HERE_D_T_FMT))
- *decided = loc;
- want_xday = 1;
- break;
- }
- *decided = raw;
- }
- /* The C locale has no era information, so use the
- normal representation. */
- if (!recursive (HERE_D_T_FMT))
- return NULL;
- want_xday = 1;
- break;
- case 'C':
-#ifdef ENABLE_ERA_JUNK
- if (*decided != raw)
- {
- if (era_cnt >= 0)
- {
- era = _nl_select_era_entry (era_cnt);
- if (match_string (era->era_name, rp))
- {
- *decided = loc;
- break;
- }
- else
- return NULL;
- }
- else
- {
- num_eras = _NL_CURRENT_WORD (LC_TIME,
- _NL_TIME_ERA_NUM_ENTRIES);
- for (era_cnt = 0; era_cnt < (int) num_eras;
- ++era_cnt, rp = rp_backup)
- {
- era = _nl_select_era_entry (era_cnt);
- if (match_string (era->era_name, rp))
- {
- *decided = loc;
- break;
- }
- }
- if (era_cnt == (int) num_eras)
- {
- era_cnt = -1;
- if (*decided == loc)
- return NULL;
- }
- else
- break;
- }
-
- *decided = raw;
- }
-#endif
- /* The C locale has no era information, so use the
- normal representation. */
- goto match_century;
- case 'y':
- if (*decided == raw)
- goto match_year_in_century;
-
- get_number(0, 9999, 4);
- tm->tm_year = val;
- want_era = 1;
- want_xday = 1;
- want_century = 1;
- break;
- case 'Y':
-#ifdef ENABLE_ERA_JUNK
- if (*decided != raw)
- {
- num_eras = _NL_CURRENT_WORD (LC_TIME,
- _NL_TIME_ERA_NUM_ENTRIES);
- for (era_cnt = 0; era_cnt < (int) num_eras;
- ++era_cnt, rp = rp_backup)
- {
- era = _nl_select_era_entry (era_cnt);
- if (recursive (era->era_format))
- break;
- }
- if (era_cnt == (int) num_eras)
- {
- era_cnt = -1;
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- *decided = loc;
- era_cnt = -1;
- break;
- }
-
- *decided = raw;
- }
-#endif
- get_number (0, 9999, 4);
- tm->tm_year = val - 1900;
- want_century = 0;
- want_xday = 1;
- break;
- case 'x':
- if (*decided != raw)
- {
- const char *fmt = _NL_CURRENT (LC_TIME, ERA_D_FMT);
-
- if (*fmt == '\0')
- fmt = _NL_CURRENT (LC_TIME, D_FMT);
-
- if (!recursive (fmt))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (fmt, HERE_D_FMT))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
- if (!recursive (HERE_D_FMT))
- return NULL;
- break;
- case 'X':
- if (*decided != raw)
- {
- const char *fmt = _NL_CURRENT (LC_TIME, ERA_T_FMT);
-
- if (*fmt == '\0')
- fmt = _NL_CURRENT (LC_TIME, T_FMT);
-
- if (!recursive (fmt))
- {
- if (*decided == loc)
- return NULL;
- else
- rp = rp_backup;
- }
- else
- {
- if (strcmp (fmt, HERE_T_FMT))
- *decided = loc;
- break;
- }
- *decided = raw;
- }
- if (!recursive (HERE_T_FMT))
- return NULL;
- break;
- default:
- return NULL;
- }
- break;
-#else
- /* We have no information about the era format. Just use
- the normal format. */
- if (*fmt != 'c' && *fmt != 'C' && *fmt != 'y' && *fmt != 'Y'
- && *fmt != 'x' && *fmt != 'X')
- /* This is an illegal format. */
- return NULL;
-
- goto start_over;
-#endif
- case 'O':
- switch (*fmt++)
- {
- case 'd':
- case 'e':
- /* Match day of month using alternate numeric symbols. */
- get_alt_number (1, 31, 2);
- tm->tm_mday = val;
- have_mday = 1;
- want_xday = 1;
- break;
- case 'H':
- /* Match hour in 24-hour clock using alternate numeric
- symbols. */
- get_alt_number (0, 23, 2);
- tm->tm_hour = val;
- have_I = 0;
- break;
- case 'I':
- /* Match hour in 12-hour clock using alternate numeric
- symbols. */
- get_alt_number (1, 12, 2);
- tm->tm_hour = val % 12;
- have_I = 1;
- break;
- case 'm':
- /* Match month using alternate numeric symbols. */
- get_alt_number (1, 12, 2);
- tm->tm_mon = val - 1;
- have_mon = 1;
- want_xday = 1;
- break;
- case 'M':
- /* Match minutes using alternate numeric symbols. */
- get_alt_number (0, 59, 2);
- tm->tm_min = val;
- break;
- case 'S':
- /* Match seconds using alternate numeric symbols. */
- get_alt_number (0, 61, 2);
- tm->tm_sec = val;
- break;
- case 'U':
- get_alt_number (0, 53, 2);
- week_no = val;
- have_uweek = 1;
- break;
- case 'W':
- get_alt_number (0, 53, 2);
- week_no = val;
- have_wweek = 1;
- break;
- case 'V':
- get_alt_number (0, 53, 2);
- /* XXX This cannot determine any field in TM without
- further information. */
- break;
- case 'w':
- /* Match number of weekday using alternate numeric symbols. */
- get_alt_number (0, 6, 1);
- tm->tm_wday = val;
- have_wday = 1;
- break;
- case 'y':
- /* Match year within century using alternate numeric symbols. */
- get_alt_number (0, 99, 2);
- tm->tm_year = val >= 69 ? val : val + 100;
- want_xday = 1;
- break;
- default:
- return NULL;
- }
- break;
- default:
- return NULL;
- }
- }
-
- if (have_I && is_pm)
- tm->tm_hour += 12;
-
- if (century != -1)
- {
- if (want_century)
- tm->tm_year = tm->tm_year % 100 + (century - 19) * 100;
- else
- /* Only the century, but not the year. Strange, but so be it. */
- tm->tm_year = (century - 19) * 100;
- }
-
-#ifdef ENABLE_ERA_JUNK
- if (era_cnt != -1)
- {
- era = _nl_select_era_entry (era_cnt);
- if (want_era)
- tm->tm_year = (era->start_date[0]
- + ((tm->tm_year - era->offset)
- * era->absolute_direction));
- else
- /* Era start year assumed. */
- tm->tm_year = era->start_date[0];
- }
- else
-#endif
- if (want_era)
- {
- /* No era found but we have seen an E modifier. Rectify some
- values. */
- if (want_century && century == -1 && tm->tm_year < 69)
- tm->tm_year += 100;
- }
-
- if (want_xday && !have_wday)
- {
- if ( !(have_mon && have_mday) && have_yday)
- {
- /* We don't have tm_mon and/or tm_mday, compute them. */
- int t_mon = 0;
- while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon] <= tm->tm_yday)
- t_mon++;
- if (!have_mon)
- tm->tm_mon = t_mon - 1;
- if (!have_mday)
- tm->tm_mday =
- (tm->tm_yday
- - __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1);
- }
- day_of_the_week (tm);
- }
-
- if (want_xday && !have_yday)
- day_of_the_year (tm);
-
- if ((have_uweek || have_wweek) && have_wday)
- {
- int save_wday = tm->tm_wday;
- int save_mday = tm->tm_mday;
- int save_mon = tm->tm_mon;
- int w_offset = have_uweek ? 0 : 1;
-
- tm->tm_mday = 1;
- tm->tm_mon = 0;
- day_of_the_week (tm);
- if (have_mday)
- tm->tm_mday = save_mday;
- if (have_mon)
- tm->tm_mon = save_mon;
-
- if (!have_yday)
- tm->tm_yday = ((7 - (tm->tm_wday - w_offset)) % 7
- + (week_no - 1) *7
- + save_wday - w_offset);
-
- if (!have_mday || !have_mon)
- {
- int t_mon = 0;
- while (__mon_yday[__isleap(1900 + tm->tm_year)][t_mon]
- <= tm->tm_yday)
- t_mon++;
- if (!have_mon)
- tm->tm_mon = t_mon - 1;
- if (!have_mday)
- tm->tm_mday =
- (tm->tm_yday
- - __mon_yday[__isleap(1900 + tm->tm_year)][t_mon - 1] + 1);
- }
-
- tm->tm_wday = save_wday;
- }
-
- return (char *) rp;
-}
-
-
-char * strptime (buf, format, tm)
- const char *buf;
- const char *format;
- struct tm *tm;
-{
- enum locale_status decided;
-
-#ifdef __UCLIBC_HAS_LOCALE__
- decided = not;
-#else
- decided = raw;
-#endif
- return __strptime_internal (buf, format, tm, &decided, -1);
-}