Copied Windows CE compatiblity date/time conversion functions from WebKit

into this separate location, so we don't need to patch WebKit anymore.

As discussed with Joerg

Reviewed-by: Trust me

2 files changed, 693 insertions, 0 deletions

diff --git a/src/3rdparty/ce-compat/ce_time.cpp b/src/3rdparty/ce-compat/ce_time.cpp
new file mode 100644
index 0000000..92efae0
--- /dev/null
+++ b/src/3rdparty/ce-compat/ce_time.cpp
@@ -0,0 +1,677 @@
+//
+// strftime.c
+//
+// Date to string conversion
+//
+// Copyright (C) 2002 Michael Ringgaard. All rights reserved.
+//
+// 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. Neither the name of the project 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+//
+
+/////////////////////////////////////////////////////////////////////////////////////////////
+//                                                                                         //
+//                                         time()                                          //
+//                                                                                         //
+/////////////////////////////////////////////////////////////////////////////////////////////
+
+
+#include <windows.h>
+#include <time.h>
+#include "ce_time.h"
+
+time_t
+time(time_t* timer)
+{
+	SYSTEMTIME systime;
+	struct tm tmtime;
+	time_t tt;
+
+	GetLocalTime(&systime);
+
+	tmtime.tm_year = systime.wYear-1900;
+	tmtime.tm_mon = systime.wMonth-1;
+	tmtime.tm_mday = systime.wDay;
+	tmtime.tm_wday = systime.wDayOfWeek;
+	tmtime.tm_hour = systime.wHour;
+	tmtime.tm_min = systime.wMinute;
+	tmtime.tm_sec = systime.wSecond;
+
+	tt = mktime(&tmtime);
+
+	if(timer)
+		*timer = tt;
+
+	return tt;
+}
+
+
+/////////////////////////////////////////////////////////////////////////////////////////////
+//                                                                                         //
+//                                        mktime()                                         //
+//                                                                                         //
+/////////////////////////////////////////////////////////////////////////////////////////////
+
+static int month_to_day[12] = {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334};
+
+time_t mktime(struct tm *t)
+{
+        short  month, year;
+        time_t result;
+
+        month = t->tm_mon;
+        year = t->tm_year + month / 12 + 1900;
+        month %= 12;
+        if (month < 0)
+        {
+                year -= 1;
+                month += 12;
+        }
+        result = (year - 1970) * 365 + (year - 1969) / 4 + month_to_day[month];
+        result = (year - 1970) * 365 + month_to_day[month];
+        if (month <= 1)
+                year -= 1;
+        result += (year - 1968) / 4;
+        result -= (year - 1900) / 100;
+        result += (year - 1600) / 400;
+        result += t->tm_mday;
+        result -= 1;
+        result *= 24;
+        result += t->tm_hour;
+        result *= 60;
+        result += t->tm_min;
+        result *= 60;
+        result += t->tm_sec;
+        return(result);
+}
+
+
+/////////////////////////////////////////////////////////////////////////////////////////////
+//                                                                                         //
+//                             strftime() - taken from OpenBSD                             //
+//                                                                                         //
+/////////////////////////////////////////////////////////////////////////////////////////////
+
+#define IN_NONE	0
+#define IN_SOME	1
+#define IN_THIS	2
+#define IN_ALL	3
+#define CHAR_BIT      8
+
+#define TYPE_BIT(type)	(sizeof (type) * CHAR_BIT)
+#define TYPE_SIGNED(type) (((type) -1) < 0)
+
+#define INT_STRLEN_MAXIMUM(type) \
+    ((TYPE_BIT(type) - TYPE_SIGNED(type)) * 302 / 1000 + 1 + TYPE_SIGNED(type))
+
+#define isleap(y) (((y) % 4) == 0 && (((y) % 100) != 0 || ((y) % 400) == 0))
+
+#define MONSPERYEAR	12
+#define DAYSPERWEEK	7
+#define TM_YEAR_BASE	1900
+#define HOURSPERDAY	24
+#define DAYSPERNYEAR	365
+#define DAYSPERLYEAR	366
+
+static char		wildabbr[] = "WILDABBR";
+
+static char *			tzname[2] = {
+	wildabbr,
+	wildabbr
+};
+
+
+#define Locale	(&C_time_locale)
+
+struct lc_time_T {
+	const char *	mon[MONSPERYEAR];
+	const char *	month[MONSPERYEAR];
+	const char *	wday[DAYSPERWEEK];
+	const char *	weekday[DAYSPERWEEK];
+	const char *	X_fmt;
+	const char *	x_fmt;
+	const char *	c_fmt;
+	const char *	am;
+	const char *	pm;
+	const char *	date_fmt;
+};
+
+static const struct lc_time_T	C_time_locale = {
+	{
+		"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+		"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
+	}, {
+		"January", "February", "March", "April", "May", "June",
+		"July", "August", "September", "October", "November", "December"
+	}, {
+		"Sun", "Mon", "Tue", "Wed",
+		"Thu", "Fri", "Sat"
+	}, {
+		"Sunday", "Monday", "Tuesday", "Wednesday",
+		"Thursday", "Friday", "Saturday"
+	},
+
+	/* X_fmt */
+	"%H:%M:%S",
+
+	/*
+	** x_fmt
+	** C99 requires this format.
+	** Using just numbers (as here) makes Quakers happier;
+	** it's also compatible with SVR4.
+	*/
+	"%m/%d/%y",
+
+	/*
+	** c_fmt
+	** C99 requires this format.
+	** Previously this code used "%D %X", but we now conform to C99.
+	** Note that
+	**      "%a %b %d %H:%M:%S %Y"
+	** is used by Solaris 2.3.
+	*/
+	"%a %b %e %T %Y",
+
+	/* am */
+	"AM",
+
+	/* pm */
+	"PM",
+
+	/* date_fmt */
+	"%a %b %e %H:%M:%S %Z %Y"
+};
+
+
+static char *
+_add(const char * str, char * pt, const char * const ptlim)
+{
+	while (pt < ptlim && (*pt = *str++) != '\0')
+		++pt;
+	return pt;
+}
+
+
+static char *
+_conv(const int n, const char * const format, char * const pt, const char * const ptlim)
+{
+	char	buf[INT_STRLEN_MAXIMUM(int) + 1];
+
+	(void) _snprintf(buf, sizeof buf, format, n);
+	return _add(buf, pt, ptlim);
+}
+
+
+static char *
+_fmt(const char * format, const struct tm * const t, char * pt, const char * const ptlim, int * warnp)
+{
+	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 = _conv((t->tm_year + TM_YEAR_BASE) / 100,
+					"%02d", pt, ptlim);
+				continue;
+			case 'c':
+				{
+				int warn2 = IN_SOME;
+
+				pt = _fmt(Locale->c_fmt, t, pt, ptlim, warnp);
+				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 's':
+				{
+					struct tm	tm;
+					char		buf[INT_STRLEN_MAXIMUM(
+								time_t) + 1];
+					time_t		mkt;
+
+					tm = *t;
+					mkt = mktime(&tm);
+					if (TYPE_SIGNED(time_t))
+						(void) _snprintf(buf, sizeof buf,
+						    "%ld", (long) mkt);
+					else	(void) _snprintf(buf, sizeof buf,
+						    "%lu", (unsigned long) mkt);
+					pt = _add(buf, 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) */
+				{
+					int	year;
+					int	yday;
+					int	wday;
+					int	w;
+
+					year = t->tm_year + TM_YEAR_BASE;
+					yday = t->tm_yday;
+					wday = t->tm_wday;
+					for ( ; ; ) {
+						int	len;
+						int	bot;
+						int	top;
+
+						len = isleap(year) ?
+							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) {
+							++year;
+							w = 1;
+							break;
+						}
+						if (yday >= bot) {
+							w = 1 + ((yday - bot) /
+								DAYSPERWEEK);
+							break;
+						}
+						--year;
+						yday += isleap(year) ?
+							DAYSPERLYEAR :
+							DAYSPERNYEAR;
+					}
+					if (*format == 'V')
+						pt = _conv(w, "%02d",
+							pt, ptlim);
+					else if (*format == 'g') {
+						*warnp = IN_ALL;
+						pt = _conv(year % 100, "%02d",
+							pt, ptlim);
+					} else	pt = _conv(year, "%04d",
+							pt, ptlim);
+				}
+				continue;
+			case 'v':
+				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 = _conv((t->tm_year + TM_YEAR_BASE) % 100,
+					"%02d", pt, ptlim);
+				continue;
+			case 'Y':
+				pt = _conv(t->tm_year + TM_YEAR_BASE, "%04d",
+					pt, ptlim);
+				continue;
+			case 'Z':
+				if (t->tm_isdst >= 0)
+					pt = _add(tzname[t->tm_isdst != 0],
+						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;
+				continue;
+				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 '%':
+			default:
+				break;
+			}
+		}
+		if (pt == ptlim)
+			break;
+		*pt++ = *format;
+	}
+	return pt;
+}
+
+
+size_t
+strftime(char * const s, const size_t maxsize, const char * const format, const struct tm * const t)
+{
+	char *	p;
+	int	warn;
+
+	//tzset();
+
+	warn = IN_NONE;
+	p = _fmt(((format == NULL) ? "%c" : format), t, s, s + maxsize, &warn);
+
+	if (p == s + maxsize) {
+		if (maxsize > 0)
+			s[maxsize - 1] = '\0';
+		return 0;
+	}
+	*p = '\0';
+	return p - s;
+}
+
+
+
+/////////////////////////////////////////////////////////////////////////////////////////////
+//                                                                                         //
+//                                      gmtime()                                           //
+//                                                                                         //
+/////////////////////////////////////////////////////////////////////////////////////////////
+
+
+
+static struct tm mytm;
+
+static int DMonth[13] = { 0,31,59,90,120,151,181,212,243,273,304,334,365 };
+static int monthCodes[12] = { 6, 2, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4 };
+
+
+static int
+calcDayOfWeek(const struct tm* nTM)
+{
+	int day;
+
+	day = (nTM->tm_year%100);
+	day += day/4;
+	day += monthCodes[nTM->tm_mon];
+	day += nTM->tm_mday;
+	while(day>=7)
+		day -= 7;
+
+	return day;
+}
+
+
+static struct tm *
+gmtime(const time_t *timer)
+{
+	unsigned long x = *timer;
+	int imin, ihrs, iday, iyrs;
+	int sec, min, hrs, day, mon, yrs;
+	int lday, qday, jday, mday;
+
+
+	imin = x / 60;							// whole minutes since 1/1/70
+	sec = x - (60 * imin);					// leftover seconds
+	ihrs = imin / 60;						// whole hours since 1/1/70
+	min = imin - 60 * ihrs;					// leftover minutes
+	iday = ihrs / 24;						// whole days since 1/1/70
+	hrs = ihrs - 24 * iday;					// leftover hours
+	iday = iday + 365 + 366; 				// whole days since 1/1/68
+	lday = iday / (( 4* 365) + 1);			// quadyr = 4 yr period = 1461 days
+	qday = iday % (( 4 * 365) + 1);			// days since current quadyr began
+	if(qday >= (31 + 29))					// if past feb 29 then
+		lday = lday + 1;					// add this quadyr’s leap day to the
+											// # of quadyrs (leap days) since 68
+	iyrs = (iday - lday) / 365;				// whole years since 1968
+	jday = iday - (iyrs * 365) - lday;		// days since 1 /1 of current year.
+	if(qday <= 365 && qday >= 60)			// if past 2/29 and a leap year then
+		jday = jday + 1;					// add a leap day to the # of whole
+											// days since 1/1 of current year
+	yrs = iyrs + 1968;						// compute year
+	mon = 13;								// estimate month ( +1)
+	mday = 366;								// max days since 1/1 is 365
+	while(jday < mday)						// mday = # of days passed from 1/1
+	{										// until first day of current month
+		mon = mon - 1;						// mon = month (estimated)
+		mday = DMonth[mon];					// # elapsed days at first of ”mon”
+		if((mon > 2) && (yrs % 4) == 0)		// if past 2/29 and leap year then
+			mday = mday + 1;				// add leap day
+											// compute month by decrementing
+	}										// month until found
+
+	day = jday - mday + 1;					// compute day of month
+
+	mytm.tm_sec = sec;
+	mytm.tm_min = min;
+	mytm.tm_hour = hrs;
+	mytm.tm_mday = day;
+	mytm.tm_mon = mon;
+	mytm.tm_year = yrs - 1900;
+
+	mytm.tm_wday = calcDayOfWeek(&mytm);
+	mytm.tm_yday = jday;
+	mytm.tm_isdst = 0;
+
+	return &mytm;
+}
+
+
+/////////////////////////////////////////////////////////////////////////////////////////////
+//                                                                                         //
+//                            localtime() - simply using gmtime()                          //
+//                                                                                         //
+/////////////////////////////////////////////////////////////////////////////////////////////
+
+
+struct tm *
+localtime(const time_t *timer)
+{
+	return gmtime(timer);
+}
diff --git a/src/3rdparty/ce-compat/ce_time.h b/src/3rdparty/ce-compat/ce_time.h
new file mode 100644
index 0000000..9d946e8
--- /dev/null
+++ b/src/3rdparty/ce-compat/ce_time.h
@@ -0,0 +1,16 @@
+#ifndef __CE_TIME_H__
+#define __CE_TIME_H__
+
+#if defined(_WIN32_WCE) && _WIN32_WCE >= 0x600
+// we need to prototype the time functions for Windows CE >= 6.0
+#include <crtdefs.h>
+
+struct tm;
+
+time_t time(time_t* timer);
+time_t mktime(struct tm *t);
+size_t strftime(char * const s, const size_t maxsize, const char * const format, const struct tm * const t);
+struct tm *localtime(const time_t *timer);
+#endif
+
+#endif