diff options
Diffstat (limited to 'winsup/cygwin/libc/strptime.cc')
| -rw-r--r-- | winsup/cygwin/libc/strptime.cc | 428 |
1 files changed, 0 insertions, 428 deletions
diff --git a/winsup/cygwin/libc/strptime.cc b/winsup/cygwin/libc/strptime.cc deleted file mode 100644 index e2f710ae9..000000000 --- a/winsup/cygwin/libc/strptime.cc +++ /dev/null @@ -1,428 +0,0 @@ -/* $NetBSD: strptime.c,v 1.28 2008/04/28 20:23:01 martin Exp $ */ - -/*- - * Copyright (c) 1997, 1998, 2005, 2008 The NetBSD Foundation, Inc. - * All rights reserved. - * - * This code was contributed to The NetBSD Foundation by Klaus Klein. - * Heavily optimised by David Laight - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -#if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: strptime.c,v 1.28 2008/04/28 20:23:01 martin Exp $"); -#endif - -#ifdef __CYGWIN__ -#include "winsup.h" -#else -#include "namespace.h" -#include <sys/localedef.h> -#endif -#include <ctype.h> -#include <locale.h> -#include <string.h> -#include <time.h> -#include <tzfile.h> - -#ifdef __weak_alias -__weak_alias(strptime,_strptime) -#endif - -#ifdef __CYGWIN__ -typedef struct { - const char *abday[7]; - const char *day[7]; - const char *abmon[12]; - const char *mon[12]; - const char *am_pm[2]; - const char *d_t_fmt; - const char *d_fmt; - const char *t_fmt; - const char *t_fmt_ampm; -} _TimeLocale; - -_TimeLocale _DefaultTimeLocale = -{ - { - "Sun","Mon","Tue","Wed","Thu","Fri","Sat", - }, - { - "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", - "Friday", "Saturday" - }, - { - "Jan", "Feb", "Mar", "Apr", "May", "Jun", - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" - }, - { - "January", "February", "March", "April", "May", "June", "July", - "August", "September", "October", "November", "December" - }, - { - "AM", "PM" - }, - "%a %b %e %H:%M:%S %Y", - "%m/%d/%y", - "%H:%M:%S", - "%I:%M:%S %p" -}; - -_TimeLocale *_CurrentTimeLocale = &_DefaultTimeLocale; -#endif - -#define _ctloc(x) (_CurrentTimeLocale->x) - -/* - * We do not implement alternate representations. However, we always - * check whether a given modifier is allowed for a certain conversion. - */ -#define ALT_E 0x01 -#define ALT_O 0x02 -#define LEGAL_ALT(x) { if (alt_format & ~(x)) return NULL; } - -static const char gmt[4] = { "GMT" }; - -static const u_char *conv_num(const unsigned char *, int *, uint, uint); -static const u_char *find_string(const u_char *, int *, const char * const *, - const char * const *, int); - - -char * -strptime(const char *buf, const char *fmt, struct tm *tm) -{ - unsigned char c; - const unsigned char *bp; - int alt_format, i, split_year = 0; - const char *new_fmt; - - bp = (const u_char *)buf; - - while (bp != NULL && (c = *fmt++) != '\0') { - /* Clear `alternate' modifier prior to new conversion. */ - alt_format = 0; - i = 0; - - /* Eat up white-space. */ - if (isspace(c)) { - while (isspace(*bp)) - bp++; - continue; - } - - if (c != '%') - goto literal; - - -again: switch (c = *fmt++) { - case '%': /* "%%" is converted to "%". */ -literal: - if (c != *bp++) - return NULL; - LEGAL_ALT(0); - continue; - - /* - * "Alternative" modifiers. Just set the appropriate flag - * and start over again. - */ - case 'E': /* "%E?" alternative conversion modifier. */ - LEGAL_ALT(0); - alt_format |= ALT_E; - goto again; - - case 'O': /* "%O?" alternative conversion modifier. */ - LEGAL_ALT(0); - alt_format |= ALT_O; - goto again; - - /* - * "Complex" conversion rules, implemented through recursion. - */ - case 'c': /* Date and time, using the locale's format. */ - new_fmt = _ctloc(d_t_fmt); - goto recurse; - - case 'D': /* The date as "%m/%d/%y". */ - new_fmt = "%m/%d/%y"; - LEGAL_ALT(0); - goto recurse; - - case 'F': /* The date as "%Y-%m-%d". */ - new_fmt = "%Y-%m-%d"; - LEGAL_ALT(0); - goto recurse; - - case 'R': /* The time as "%H:%M". */ - new_fmt = "%H:%M"; - LEGAL_ALT(0); - goto recurse; - - case 'r': /* The time in 12-hour clock representation. */ - new_fmt =_ctloc(t_fmt_ampm); - LEGAL_ALT(0); - goto recurse; - - case 'T': /* The time as "%H:%M:%S". */ - new_fmt = "%H:%M:%S"; - LEGAL_ALT(0); - goto recurse; - - case 'X': /* The time, using the locale's format. */ - new_fmt =_ctloc(t_fmt); - goto recurse; - - case 'x': /* The date, using the locale's format. */ - new_fmt =_ctloc(d_fmt); - recurse: - bp = (const u_char *)strptime((const char *)bp, - new_fmt, tm); - LEGAL_ALT(ALT_E); - continue; - - /* - * "Elementary" conversion rules. - */ - case 'A': /* The day of week, using the locale's form. */ - case 'a': - bp = find_string(bp, &tm->tm_wday, _ctloc(day), - _ctloc(abday), 7); - LEGAL_ALT(0); - continue; - - case 'B': /* The month, using the locale's form. */ - case 'b': - case 'h': - bp = find_string(bp, &tm->tm_mon, _ctloc(mon), - _ctloc(abmon), 12); - LEGAL_ALT(0); - continue; - - case 'C': /* The century number. */ - i = 20; - bp = conv_num(bp, &i, 0, 99); - - i = i * 100 - TM_YEAR_BASE; - if (split_year) - i += tm->tm_year % 100; - split_year = 1; - tm->tm_year = i; - LEGAL_ALT(ALT_E); - continue; - - case 'd': /* The day of month. */ - case 'e': - bp = conv_num(bp, &tm->tm_mday, 1, 31); - LEGAL_ALT(ALT_O); - continue; - - case 'k': /* The hour (24-hour clock representation). */ - LEGAL_ALT(0); - /* FALLTHROUGH */ - case 'H': - bp = conv_num(bp, &tm->tm_hour, 0, 23); - LEGAL_ALT(ALT_O); - continue; - - case 'l': /* The hour (12-hour clock representation). */ - LEGAL_ALT(0); - /* FALLTHROUGH */ - case 'I': - bp = conv_num(bp, &tm->tm_hour, 1, 12); - if (tm->tm_hour == 12) - tm->tm_hour = 0; - LEGAL_ALT(ALT_O); - continue; - - case 'j': /* The day of year. */ - i = 1; - bp = conv_num(bp, &i, 1, 366); - tm->tm_yday = i - 1; - LEGAL_ALT(0); - continue; - - case 'M': /* The minute. */ - bp = conv_num(bp, &tm->tm_min, 0, 59); - LEGAL_ALT(ALT_O); - continue; - - case 'm': /* The month. */ - i = 1; - bp = conv_num(bp, &i, 1, 12); - tm->tm_mon = i - 1; - LEGAL_ALT(ALT_O); - continue; - - case 'p': /* The locale's equivalent of AM/PM. */ - bp = find_string(bp, &i, _ctloc(am_pm), NULL, 2); - if (tm->tm_hour > 11) - return NULL; - tm->tm_hour += i * 12; - LEGAL_ALT(0); - continue; - - case 'S': /* The seconds. */ - bp = conv_num(bp, &tm->tm_sec, 0, 61); - LEGAL_ALT(ALT_O); - continue; - - case 'U': /* The week of year, beginning on sunday. */ - case 'W': /* The week of year, beginning on monday. */ - /* - * XXX This is bogus, as we can not assume any valid - * information present in the tm structure at this - * point to calculate a real value, so just check the - * range for now. - */ - bp = conv_num(bp, &i, 0, 53); - LEGAL_ALT(ALT_O); - continue; - - case 'w': /* The day of week, beginning on sunday. */ - bp = conv_num(bp, &tm->tm_wday, 0, 6); - LEGAL_ALT(ALT_O); - continue; - - case 'Y': /* The year. */ - i = TM_YEAR_BASE; /* just for data sanity... */ - bp = conv_num(bp, &i, 0, 9999); - tm->tm_year = i - TM_YEAR_BASE; - LEGAL_ALT(ALT_E); - continue; - - case 'y': /* The year within 100 years of the epoch. */ - /* LEGAL_ALT(ALT_E | ALT_O); */ - bp = conv_num(bp, &i, 0, 99); - - if (split_year) - /* preserve century */ - i += (tm->tm_year / 100) * 100; - else { - split_year = 1; - if (i <= 68) - i = i + 2000 - TM_YEAR_BASE; - else - i = i + 1900 - TM_YEAR_BASE; - } - tm->tm_year = i; - continue; - - case 'Z': - tzset(); - if (strncmp((const char *)bp, gmt, 3) == 0) { - tm->tm_isdst = 0; -#ifdef TM_GMTOFF - tm->TM_GMTOFF = 0; -#endif -#ifdef TM_ZONE - tm->TM_ZONE = gmt; -#endif - bp += 3; - } else { - const unsigned char *ep; - - ep = find_string(bp, &i, - (const char * const *)tzname, - NULL, 2); - if (ep != NULL) { - tm->tm_isdst = i; -#ifdef TM_GMTOFF - tm->TM_GMTOFF = -(timezone); -#endif -#ifdef TM_ZONE - tm->TM_ZONE = tzname[i]; -#endif - } - bp = ep; - } - continue; - - /* - * Miscellaneous conversions. - */ - case 'n': /* Any kind of white-space. */ - case 't': - while (isspace(*bp)) - bp++; - LEGAL_ALT(0); - continue; - - - default: /* Unknown/unsupported conversion. */ - return NULL; - } - } - - return (char *) bp; -} - - -static const u_char * -conv_num(const unsigned char *buf, int *dest, uint llim, uint ulim) -{ - uint result = 0; - unsigned char ch; - - /* The limit also determines the number of valid digits. */ - uint rulim = ulim; - - ch = *buf; - if (ch < '0' || ch > '9') - return NULL; - - do { - result *= 10; - result += ch - '0'; - rulim /= 10; - ch = *++buf; - } while ((result * 10 <= ulim) && rulim && ch >= '0' && ch <= '9'); - - if (result < llim || result > ulim) - return NULL; - - *dest = result; - return buf; -} - -static const u_char * -find_string(const u_char *bp, int *tgt, const char * const *n1, - const char * const *n2, int c) -{ - int i; - unsigned int len; - - /* check full name - then abbreviated ones */ - for (; n1 != NULL; n1 = n2, n2 = NULL) { - for (i = 0; i < c; i++, n1++) { - len = strlen(*n1); - if (strncasecmp(*n1, (const char *)bp, len) == 0) { - *tgt = i; - return bp + len; - } - } - } - - /* Nothing matched */ - return NULL; -} |