Differential D25866 Diff 71247 src/parsers/qcalendarsystem.cpp

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src/parsers/qcalendarsystem.cpp

Show First 20 Lines • Show All 392 Lines • ▼ Show 20 Line(s)390{
393 switch (calendarSystem()) { 393​ switch (calendarSystem()) {
394 394​
395 case QCalendarSystem::GregorianCalendar: 395​ case QCalendarSystem::GregorianCalendar:
396 case QCalendarSystem::ISO8601Calendar: 396​ case QCalendarSystem::ISO8601Calendar:
397 case QCalendarSystem::JapaneseCalendar: 397​ case QCalendarSystem::JapaneseCalendar:
398 case QCalendarSystem::ROCCalendar: 398​ case QCalendarSystem::ROCCalendar:
399 case QCalendarSystem::ThaiCalendar: { 399​ case QCalendarSystem::ThaiCalendar: {
400 // Formula from The Calendar FAQ by Claus Tondering 400​ // Formula from The Calendar FAQ by Claus Tondering
401 // http://www.tondering.dk/claus/cal/node3.html#SECTION003161000000000000000 401​ // https://www.tondering.dk/claus/calendar.html
402 qint64 a = jd + 32044; 402​ qint64 a = jd + 32044;
403 qint64 b = ((4 * a) + 3) / 146097; 403​ qint64 b = ((4 * a) + 3) / 146097;
404 qint64 c = a - ((146097 * b) / 4); 404​ qint64 c = a - ((146097 * b) / 4);
405 qint64 d = ((4 * c) + 3) / 1461; 405​ qint64 d = ((4 * c) + 3) / 1461;
406 qint64 e = c - ((1461 * d) / 4); 406​ qint64 e = c - ((1461 * d) / 4);
407 qint64 m = ((5 * e) + 2) / 153; 407​ qint64 m = ((5 * e) + 2) / 153;
408 dd = e - (((153 * m) + 2) / 5) + 1; 408​ dd = e - (((153 * m) + 2) / 5) + 1;
409 mm = m + 3 - (12 * (m / 10)); 409​ mm = m + 3 - (12 * (m / 10));
▲ Show 20 Lines • Show All 43 Lines • ▼ Show 20 Line(s)444 case QCalendarSystem::IslamicCivilCalendar: {
453 yy = (30 * n) + j - 30; 453​ yy = (30 * n) + j - 30;
454 mm = (24 * l) / 709; 454​ mm = (24 * l) / 709;
455 dd = l - ((709 * mm) / 24); 455​ dd = l - ((709 * mm) / 24);
456 break; 456​ break;
457 } 457​ }
458 458​
459 case QCalendarSystem::JulianCalendar: { 459​ case QCalendarSystem::JulianCalendar: {
460 // Formula from The Calendar FAQ by Claus Tondering 460​ // Formula from The Calendar FAQ by Claus Tondering
461 // http://www.tondering.dk/claus/cal/node3.html#SECTION003161000000000000000 461​ // https://www.tondering.dk/claus/calendar.html
462 qint64 b = 0; 462​ qint64 b = 0;
463 qint64 c = jd + 32082; 463​ qint64 c = jd + 32082;
464 qint64 d = ((4 * c) + 3) / 1461; 464​ qint64 d = ((4 * c) + 3) / 1461;
465 qint64 e = c - ((1461 * d) / 4); 465​ qint64 e = c - ((1461 * d) / 4);
466 qint64 m = ((5 * e) + 2) / 153; 466​ qint64 m = ((5 * e) + 2) / 153;
467 dd = e - (((153 * m) + 2) / 5) + 1; 467​ dd = e - (((153 * m) + 2) / 5) + 1;
468 mm = m + 3 - (12 * (m / 10)); 468​ mm = m + 3 - (12 * (m / 10));
469 yy = (100 * b) + d - 4800 + (m / 10); 469​ yy = (100 * b) + d - 4800 + (m / 10);
Show All 34 Lines495{
504 switch (calendarSystem()) { 504​ switch (calendarSystem()) {
505 505​
506 case QCalendarSystem::GregorianCalendar: 506​ case QCalendarSystem::GregorianCalendar:
507 case QCalendarSystem::ISO8601Calendar: 507​ case QCalendarSystem::ISO8601Calendar:
508 case QCalendarSystem::JapaneseCalendar: 508​ case QCalendarSystem::JapaneseCalendar:
509 case QCalendarSystem::ROCCalendar: 509​ case QCalendarSystem::ROCCalendar:
510 case QCalendarSystem::ThaiCalendar: { 510​ case QCalendarSystem::ThaiCalendar: {
511 // Formula from The Calendar FAQ by Claus Tondering 511​ // Formula from The Calendar FAQ by Claus Tondering
512 // http://www.tondering.dk/claus/cal/node3.html#SECTION003161000000000000000 512​ // https://www.tondering.dk/claus/calendar.html
513 int a = (14 - month) / 12; 513​ int a = (14 - month) / 12;
514 year = year + 4800 - a; 514​ year = year + 4800 - a;
515 int m = month + (12 * a) - 3; 515​ int m = month + (12 * a) - 3;
516 jd = day + 516​ jd = day +
517 (((153 * m) + 2) / 5) + 517​ (((153 * m) + 2) / 5) +
518 (365 * year) + 518​ (365 * year) +
519 (year / 4) - 519​ (year / 4) -
520 (year / 100) + 520​ (year / 100) +
Show All 40 Lines557 jd = (3 + (11 * year)) / 30 +
561 day + 561​ day +
562 epoch() - 562​ epoch() -
563 385; 563​ 385;
564 break; 564​ break;
565 } 565​ }
566 566​
567 case QCalendarSystem::JulianCalendar: { 567​ case QCalendarSystem::JulianCalendar: {
568 // Formula from The Calendar FAQ by Claus Tondering 568​ // Formula from The Calendar FAQ by Claus Tondering
569 // http://www.tondering.dk/claus/cal/node3.html#SECTION003161000000000000000 569​ // https://www.tondering.dk/claus/calendar.html
570 int a = (14 - month) / 12; 570​ int a = (14 - month) / 12;
571 year = year + 4800 - a; 571​ year = year + 4800 - a;
572 int m = month + (12 * a) - 3; 572​ int m = month + (12 * a) - 3;
573 jd = day + 573​ jd = day +
574 (((153 * m) + 2) / 5) + 574​ (((153 * m) + 2) / 5) +
575 (365 * year) + 575​ (365 * year) +
576 (year / 4) - 576​ (year / 4) -
577 32083; 577​ 32083;
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