// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2003 - 2009, International Business Machines Corporation and *
* others. All Rights Reserved. *
*******************************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "cecal.h"
#include "gregoimp.h" //Math
#include "cstring.h"
U_NAMESPACE_BEGIN
static const int32_t LIMITS[UCAL_FIELD_COUNT][4] = {
// Minimum Greatest Least Maximum
// Minimum Maximum
{ 0, 0, 1, 1},
// ERA
{ 1, 1, 5000000, 5000000},
// YEAR
{ 0, 0, 12, 12},
// MONTH
{ 1, 1, 52, 53},
// WEEK_OF_YEAR
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // WEEK_OF_MONTH
{ 1, 1, 5, 30},
// DAY_OF_MONTH
{ 1, 1, 365, 366},
// DAY_OF_YEAR
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // DAY_OF_WEEK
{ -1, -1, 1, 5},
// DAY_OF_WEEK_IN_MONTH
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // AM_PM
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // HOUR
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // HOUR_OF_DAY
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // MINUTE
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // SECOND
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // MILLISECOND
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // ZONE_OFFSET
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // DST_OFFSET
{ -5000000, -5000000, 5000000, 5000000},
// YEAR_WOY
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // DOW_LOCAL
{ -5000000, -5000000, 5000000, 5000000},
// EXTENDED_YEAR
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // JULIAN_DAY
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // MILLISECONDS_IN_DAY
{
/*N/A*/-1,/*N/A*/-1,/*N/A*/-1,/*N/A*/-1}, // IS_LEAP_MONTH
{ 0, 0, 12, 12},
// ORDINAL_MONTH
};
//-------------------------------------------------------------------------
// Constructors...
//-------------------------------------------------------------------------
CECalendar::CECalendar(
const Locale& aLocale, UErrorCode& success)
: Calendar(TimeZone::forLocaleOrDefault(aLocale), aLocale, success)
{
setTimeInMillis(getNow(), success);
}
CECalendar::CECalendar (
const CECalendar& other)
: Calendar(other)
{
}
CECalendar::~CECalendar()
{
}
CECalendar&
CECalendar::
operator =(
const CECalendar& right)
{
Calendar::
operator =(right);
return *
this ;
}
//-------------------------------------------------------------------------
// Calendar framework
//-------------------------------------------------------------------------
int64_t
CECalendar::handleComputeMonthStart(int32_t eyear,int32_t emonth, UBool
/*useMonth*/, UErrorCode& /*status*/) const
{
int64_t year64 = eyear;
// handle month > 12, < 0 (e.g. from add/set)
if ( emonth >= 0 ) {
year64 += emonth/13;
emonth %= 13;
}
else {
++emonth;
year64 += emonth/13 - 1;
emonth = emonth%13 + 12;
}
return (
getJDEpochOffset()
// difference from Julian epoch to 1,1,1
+ 365LL * year64
// number of days from years
+ ClockMath::floorDivideInt64(year64, 4LL)
// extra day of leap year
+ 30 * emonth
// number of days from months (months are 0-based)
- 1
// number of days for present month (1 based)
);
}
int32_t
CECalendar::handleGetLimit(UCalendarDateFields field, ELimitType limitType)
const
{
return LIMITS[field][limitType];
}
//-------------------------------------------------------------------------
// Calendar system Conversion methods...
//-------------------------------------------------------------------------
void
CECalendar::jdToCE(int32_t julianDay, int32_t jdEpochOffset, int32_t& year, int32_
t& month, int32_t& day, UErrorCode& status)
{
int32_t c4; // number of 4 year cycle (1461 days)
int32_t r4; // remainder of 4 year cycle, always positive
if (uprv_add32_overflow(julianDay, -jdEpochOffset, &julianDay)) {
status = U_ILLEGAL_ARGUMENT_ERROR;
return ;
}
c4 = ClockMath::floorDivide(julianDay, 1461, &r4);
year = 4 * c4 + (r4/365 - r4/1460); // 4 * <number of 4year cycle> + <years within the last cycle>
int32_t doy = (r4 == 1460) ? 365 : (r4 % 365); // days in present year
month = doy / 30; // 30 -> Coptic/Ethiopic month length up to 12th month
day = (doy % 30) + 1; // 1-based days in a month
}
static const char * kMonthCode13 = "M13" ;
const char * CECalendar::getTemporalMonthCode(UErrorCode& status) const {
if (get(UCAL_MONTH, status) == 12) {
return kMonthCode13;
}
return Calendar::getTemporalMonthCode(status);
}
void
CECalendar::setTemporalMonthCode(const char * code, UErrorCode& status) {
if (U_FAILURE(status)) {
return ;
}
if (uprv_strcmp(code, kMonthCode13) == 0) {
set(UCAL_MONTH, 12);
set(UCAL_IS_LEAP_MONTH, 0);
return ;
}
Calendar::setTemporalMonthCode(code, status);
}
U_NAMESPACE_END
#endif /* #if !UCONFIG_NO_FORMATTING */
//eof
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