osStrptime.c

/*	$Id$	*/
/*	$NetBSD: strptime.c,v 1.18 1999/04/29 02:58:30 tv Exp $	*/

/*-
* Copyright (c) 1997, 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code was contributed to The NetBSD Foundation by Klaus Klein.
*
* 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.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*        This product includes software developed by the NetBSD
*        Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
*    contributors may be used to endorse or promote products derived
*    from this software without specific prior written permission.
*
* 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 "lukemftp.h"

// #ifdef WINDOWS

// #include <time.h>  
// #include <stdlib.h>  
// #include <string.h>
// #include <winsock2.h>
// //#define TM_YEAR_BASE 1970 //origin
// #define TM_YEAR_BASE 1900 //slguan
// /*
// * 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 (0); }


// static int conv_num(const char **buf, int *dest, int llim, int ulim)
// {
//     int result = 0;

//     /* The limit also determines the number of valid digits. */
//     int rulim = ulim;

//     if (**buf < '0' || **buf > '9')
//         return (0);

//     do {
//         result *= 10;
//         result += *(*buf)++ - '0';
//         rulim /= 10;
//     } while ((result * 10 <= ulim) && rulim && **buf >= '0' && **buf <= '9');

//     if (result < llim || result > ulim)
//         return (0);

//     *dest = result;
//     return (1);
// }

// static const char *day[7] = {
//     "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday",
//     "Friday", "Saturday"
// };
// static const char *abday[7] = {
//     "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
// };
// static const char *mon[12] = {
//     "January", "February", "March", "April", "May", "June", "July",
//     "August", "September", "October", "November", "December"
// };
// static const char *abmon[12] = {
//     "Jan", "Feb", "Mar", "Apr", "May", "Jun",
//     "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
// };
// static const char *am_pm[2] = {
//     "AM", "PM"
// };

// #endif

// char *taosStrpTime(const char *buf, const char *fmt, struct tm *tm) {
// #ifdef WINDOWS
//     char c;
//     const char *bp;
//     size_t len = 0;
//     int alt_format, i, split_year = 0;

//     bp = buf;

//     while ((c = *fmt) != '\0') {
//         /* Clear `alternate' modifier prior to new conversion. */
//         alt_format = 0;

//         /* Eat up white-space. */
//         if (isspace(c)) {
//             while (isspace(*bp))
//                 bp++;

//             fmt++;
//             continue;
//         }

//         if ((c = *fmt++) != '%')
//             goto literal;


//     again:		switch (c = *fmt++) {
//     case '%':	/* "%%" is converted to "%". */
//         literal :
//             if (c != *bp++)
//                 return (0);
//         break;

//         /*
//         * "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. */
//         LEGAL_ALT(ALT_E);
//         if (!(bp = taosStrpTime(bp, "%x %X", tm)))
//             return (0);
//         break;

//     case 'D':	/* The date as "%m/%d/%y". */
//         LEGAL_ALT(0);
//         if (!(bp = taosStrpTime(bp, "%m/%d/%y", tm)))
//             return (0);
//         break;

//     case 'R':	/* The time as "%H:%M". */
//         LEGAL_ALT(0);
//         if (!(bp = taosStrpTime(bp, "%H:%M", tm)))
//             return (0);
//         break;

//     case 'r':	/* The time in 12-hour clock representation. */
//         LEGAL_ALT(0);
//         if (!(bp = taosStrpTime(bp, "%I:%M:%S %p", tm)))
//             return (0);
//         break;

//     case 'T':	/* The time as "%H:%M:%S". */
//         LEGAL_ALT(0);
//         if (!(bp = taosStrpTime(bp, "%H:%M:%S", tm)))
//             return (0);
//         break;

//     case 'X':	/* The time, using the locale's format. */
//         LEGAL_ALT(ALT_E);
//         if (!(bp = taosStrpTime(bp, "%H:%M:%S", tm)))
//             return (0);
//         break;

//     case 'x':	/* The date, using the locale's format. */
//         LEGAL_ALT(ALT_E);
//         if (!(bp = taosStrpTime(bp, "%m/%d/%y", tm)))
//             return (0);
//         break;

//         /*
//         * "Elementary" conversion rules.
//         */
//     case 'A':	/* The day of week, using the locale's form. */
//     case 'a':
//         LEGAL_ALT(0);
//         for (i = 0; i < 7; i++) {
//             /* Full name. */
//             len = strlen(day[i]);
//             if (strncmp(day[i], bp, len) == 0)
//                 break;

//             /* Abbreviated name. */
//             len = strlen(abday[i]);
//             if (strncmp(abday[i], bp, len) == 0)
//                 break;
//         }

//         /* Nothing matched. */
//         if (i == 7)
//             return (0);

//         tm->tm_wday = i;
//         bp += len;
//         break;

//     case 'B':	/* The month, using the locale's form. */
//     case 'b':
//     case 'h':
//         LEGAL_ALT(0);
//         for (i = 0; i < 12; i++) {
//             /* Full name. */
//             len = strlen(mon[i]);
//             if (strncmp(mon[i], bp, len) == 0)
//                 break;

//             /* Abbreviated name. */
//             len = strlen(abmon[i]);
//             if (strncmp(abmon[i], bp, len) == 0)
//                 break;
//         }

//         /* Nothing matched. */
//         if (i == 12)
//             return (0);

//         tm->tm_mon = i;
//         bp += len;
//         break;

//     case 'C':	/* The century number. */
//         LEGAL_ALT(ALT_E);
//         if (!(conv_num(&bp, &i, 0, 99)))
//             return (0);

//         if (split_year) {
//             tm->tm_year = (tm->tm_year % 100) + (i * 100);
//         }
//         else {
//             tm->tm_year = i * 100;
//             split_year = 1;
//         }
//         break;

//     case 'd':	/* The day of month. */
//     case 'e':
//         LEGAL_ALT(ALT_O);
//         if (!(conv_num(&bp, &tm->tm_mday, 1, 31)))
//             return (0);
//         break;

//     case 'k':	/* The hour (24-hour clock representation). */
//         LEGAL_ALT(0);
//         /* FALLTHROUGH */
//     case 'H':
//         LEGAL_ALT(ALT_O);
//         if (!(conv_num(&bp, &tm->tm_hour, 0, 23)))
//             return (0);
//         break;

//     case 'l':	/* The hour (12-hour clock representation). */
//         LEGAL_ALT(0);
//         /* FALLTHROUGH */
//     case 'I':
//         LEGAL_ALT(ALT_O);
//         if (!(conv_num(&bp, &tm->tm_hour, 1, 12)))
//             return (0);
//         if (tm->tm_hour == 12)
//             tm->tm_hour = 0;
//         break;

//     case 'j':	/* The day of year. */
//         LEGAL_ALT(0);
//         if (!(conv_num(&bp, &i, 1, 366)))
//             return (0);
//         tm->tm_yday = i - 1;
//         break;

//     case 'M':	/* The minute. */
//         LEGAL_ALT(ALT_O);
//         if (!(conv_num(&bp, &tm->tm_min, 0, 59)))
//             return (0);
//         break;

//     case 'm':	/* The month. */
//         LEGAL_ALT(ALT_O);
//         if (!(conv_num(&bp, &i, 1, 12)))
//             return (0);
//         tm->tm_mon = i - 1;
//         break;

//     case 'p':	/* The locale's equivalent of AM/PM. */
//         LEGAL_ALT(0);
//         /* AM? */
//         if (strcmp(am_pm[0], bp) == 0) {
//             if (tm->tm_hour > 11)
//                 return (0);

//             bp += strlen(am_pm[0]);
//             break;
//         }
//         /* PM? */
//         else if (strcmp(am_pm[1], bp) == 0) {
//             if (tm->tm_hour > 11)
//                 return (0);

//             tm->tm_hour += 12;
//             bp += strlen(am_pm[1]);
//             break;
//         }

//         /* Nothing matched. */
//         return (0);

//     case 'S':	/* The seconds. */
//         LEGAL_ALT(ALT_O);
//         if (!(conv_num(&bp, &tm->tm_sec, 0, 61)))
//             return (0);
//         break;

//     case 'U':	/* The week of year, beginning on sunday. */
//     case 'W':	/* The week of year, beginning on monday. */
//         LEGAL_ALT(ALT_O);
//         /*
//         * 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.
//         */
//         if (!(conv_num(&bp, &i, 0, 53)))
//             return (0);
//         break;

//     case 'w':	/* The day of week, beginning on sunday. */
//         LEGAL_ALT(ALT_O);
//         if (!(conv_num(&bp, &tm->tm_wday, 0, 6)))
//             return (0);
//         break;

//     case 'Y':	/* The year. */
//         LEGAL_ALT(ALT_E);
//         if (!(conv_num(&bp, &i, 0, 9999)))
//             return (0);

//         tm->tm_year = i - TM_YEAR_BASE;
//         break;

//     case 'y':	/* The year within 100 years of the epoch. */
//         LEGAL_ALT(ALT_E | ALT_O);
//         if (!(conv_num(&bp, &i, 0, 99)))
//             return (0);

//         if (split_year) {
//             tm->tm_year = ((tm->tm_year / 100) * 100) + i;
//             break;
//         }
//         split_year = 1;
//         if (i <= 68)
//             tm->tm_year = i + 2000 - TM_YEAR_BASE;
//         else
//             tm->tm_year = i + 1900 - TM_YEAR_BASE;
//         break;

//         /*
//         * Miscellaneous conversions.
//         */
//     case 'n':	/* Any kind of white-space. */
//     case 't':
//         LEGAL_ALT(0);
//         while (isspace(*bp))
//             bp++;
//         break;


//     default:	/* Unknown/unsupported conversion. */
//         return (0);
//     }


//     }

//     /* LINTED functional specification */
//     return ((char *)bp);
// #elif defined(_TD_DARWIN_64)
//     return strptime(buf, fmt, tm);
// #else
//     return strptime(buf, fmt, tm);
// #endif
// }