// Licensed to the .NET Foundation under one or more agreements. // The .NET Foundation licenses this file to you under the MIT license. // See the LICENSE file in the project root for more information. using System.Diagnostics; using System.Diagnostics.Contracts; namespace System.Globalization { //////////////////////////////////////////////////////////////////////////// // // Notes about UmAlQuraCalendar // //////////////////////////////////////////////////////////////////////////// /* ** Calendar support range: ** Calendar Minimum Maximum ** ========== ========== ========== ** Gregorian 1900/04/30 2077/05/13 ** UmAlQura 1318/01/01 1500/12/30 */ [Serializable] public partial class UmAlQuraCalendar : Calendar { internal const int MinCalendarYear = 1318; internal const int MaxCalendarYear = 1500; internal struct DateMapping { internal DateMapping(int MonthsLengthFlags, int GYear, int GMonth, int GDay) { HijriMonthsLengthFlags = MonthsLengthFlags; GregorianDate = new DateTime(GYear, GMonth, GDay); } internal int HijriMonthsLengthFlags; internal DateTime GregorianDate; } private static readonly DateMapping[] s_hijriYearInfo = InitDateMapping(); private static DateMapping[] InitDateMapping() { short[] rawData = new short[] { //These data is taken from Tables/Excel/UmAlQura.xls please make sure that the two places are in sync /* DaysPerM GY GM GD D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 1318*/0x02EA, 1900, 4, 30,/* 0 1 0 1 0 1 1 1 0 1 0 0 4/30/1900 1319*/0x06E9, 1901, 4, 19,/* 1 0 0 1 0 1 1 1 0 1 1 0 4/19/1901 1320*/0x0ED2, 1902, 4, 9,/* 0 1 0 0 1 0 1 1 0 1 1 1 4/9/1902 1321*/0x0EA4, 1903, 3, 30,/* 0 0 1 0 0 1 0 1 0 1 1 1 3/30/1903 1322*/0x0D4A, 1904, 3, 18,/* 0 1 0 1 0 0 1 0 1 0 1 1 3/18/1904 1323*/0x0A96, 1905, 3, 7,/* 0 1 1 0 1 0 0 1 0 1 0 1 3/7/1905 1324*/0x0536, 1906, 2, 24,/* 0 1 1 0 1 1 0 0 1 0 1 0 2/24/1906 1325*/0x0AB5, 1907, 2, 13,/* 1 0 1 0 1 1 0 1 0 1 0 1 2/13/1907 1326*/0x0DAA, 1908, 2, 3,/* 0 1 0 1 0 1 0 1 1 0 1 1 2/3/1908 1327*/0x0BA4, 1909, 1, 23,/* 0 0 1 0 0 1 0 1 1 1 0 1 1/23/1909 1328*/0x0B49, 1910, 1, 12,/* 1 0 0 1 0 0 1 0 1 1 0 1 1/12/1910 1329*/0x0A93, 1911, 1, 1,/* 1 1 0 0 1 0 0 1 0 1 0 1 1/1/1911 1330*/0x052B, 1911, 12, 21,/* 1 1 0 1 0 1 0 0 1 0 1 0 12/21/1911 1331*/0x0A57, 1912, 12, 9,/* 1 1 1 0 1 0 1 0 0 1 0 1 12/9/1912 1332*/0x04B6, 1913, 11, 29,/* 0 1 1 0 1 1 0 1 0 0 1 0 11/29/1913 1333*/0x0AB5, 1914, 11, 18,/* 1 0 1 0 1 1 0 1 0 1 0 1 11/18/1914 1334*/0x05AA, 1915, 11, 8,/* 0 1 0 1 0 1 0 1 1 0 1 0 11/8/1915 1335*/0x0D55, 1916, 10, 27,/* 1 0 1 0 1 0 1 0 1 0 1 1 10/27/1916 1336*/0x0D2A, 1917, 10, 17,/* 0 1 0 1 0 1 0 0 1 0 1 1 10/17/1917 1337*/0x0A56, 1918, 10, 6,/* 0 1 1 0 1 0 1 0 0 1 0 1 10/6/1918 1338*/0x04AE, 1919, 9, 25,/* 0 1 1 1 0 1 0 1 0 0 1 0 9/25/1919 1339*/0x095D, 1920, 9, 13,/* 1 0 1 1 1 0 1 0 1 0 0 1 9/13/1920 1340*/0x02EC, 1921, 9, 3,/* 0 0 1 1 0 1 1 1 0 1 0 0 9/3/1921 1341*/0x06D5, 1922, 8, 23,/* 1 0 1 0 1 0 1 1 0 1 1 0 8/23/1922 1342*/0x06AA, 1923, 8, 13,/* 0 1 0 1 0 1 0 1 0 1 1 0 8/13/1923 1343*/0x0555, 1924, 8, 1,/* 1 0 1 0 1 0 1 0 1 0 1 0 8/1/1924 1344*/0x04AB, 1925, 7, 21,/* 1 1 0 1 0 1 0 1 0 0 1 0 7/21/1925 1345*/0x095B, 1926, 7, 10,/* 1 1 0 1 1 0 1 0 1 0 0 1 7/10/1926 1346*/0x02BA, 1927, 6, 30,/* 0 1 0 1 1 1 0 1 0 1 0 0 6/30/1927 1347*/0x0575, 1928, 6, 18,/* 1 0 1 0 1 1 1 0 1 0 1 0 6/18/1928 1348*/0x0BB2, 1929, 6, 8,/* 0 1 0 0 1 1 0 1 1 1 0 1 6/8/1929 1349*/0x0764, 1930, 5, 29,/* 0 0 1 0 0 1 1 0 1 1 1 0 5/29/1930 1350*/0x0749, 1931, 5, 18,/* 1 0 0 1 0 0 1 0 1 1 1 0 5/18/1931 1351*/0x0655, 1932, 5, 6,/* 1 0 1 0 1 0 1 0 0 1 1 0 5/6/1932 1352*/0x02AB, 1933, 4, 25,/* 1 1 0 1 0 1 0 1 0 1 0 0 4/25/1933 1353*/0x055B, 1934, 4, 14,/* 1 1 0 1 1 0 1 0 1 0 1 0 4/14/1934 1354*/0x0ADA, 1935, 4, 4,/* 0 1 0 1 1 0 1 1 0 1 0 1 4/4/1935 1355*/0x06D4, 1936, 3, 24,/* 0 0 1 0 1 0 1 1 0 1 1 0 3/24/1936 1356*/0x0EC9, 1937, 3, 13,/* 1 0 0 1 0 0 1 1 0 1 1 1 3/13/1937 1357*/0x0D92, 1938, 3, 3,/* 0 1 0 0 1 0 0 1 1 0 1 1 3/3/1938 1358*/0x0D25, 1939, 2, 20,/* 1 0 1 0 0 1 0 0 1 0 1 1 2/20/1939 1359*/0x0A4D, 1940, 2, 9,/* 1 0 1 1 0 0 1 0 0 1 0 1 2/9/1940 1360*/0x02AD, 1941, 1, 28,/* 1 0 1 1 0 1 0 1 0 1 0 0 1/28/1941 1361*/0x056D, 1942, 1, 17,/* 1 0 1 1 0 1 1 0 1 0 1 0 1/17/1942 1362*/0x0B6A, 1943, 1, 7,/* 0 1 0 1 0 1 1 0 1 1 0 1 1/7/1943 1363*/0x0B52, 1943, 12, 28,/* 0 1 0 0 1 0 1 0 1 1 0 1 12/28/1943 1364*/0x0AA5, 1944, 12, 16,/* 1 0 1 0 0 1 0 1 0 1 0 1 12/16/1944 1365*/0x0A4B, 1945, 12, 5,/* 1 1 0 1 0 0 1 0 0 1 0 1 12/5/1945 1366*/0x0497, 1946, 11, 24,/* 1 1 1 0 1 0 0 1 0 0 1 0 11/24/1946 1367*/0x0937, 1947, 11, 13,/* 1 1 1 0 1 1 0 0 1 0 0 1 11/13/1947 1368*/0x02B6, 1948, 11, 2,/* 0 1 1 0 1 1 0 1 0 1 0 0 11/2/1948 1369*/0x0575, 1949, 10, 22,/* 1 0 1 0 1 1 1 0 1 0 1 0 10/22/1949 1370*/0x0D6A, 1950, 10, 12,/* 0 1 0 1 0 1 1 0 1 0 1 1 10/12/1950 1371*/0x0D52, 1951, 10, 2,/* 0 1 0 0 1 0 1 0 1 0 1 1 10/2/1951 1372*/0x0A96, 1952, 9, 20,/* 0 1 1 0 1 0 0 1 0 1 0 1 9/20/1952 1373*/0x092D, 1953, 9, 9,/* 1 0 1 1 0 1 0 0 1 0 0 1 9/9/1953 1374*/0x025D, 1954, 8, 29,/* 1 0 1 1 1 0 1 0 0 1 0 0 8/29/1954 1375*/0x04DD, 1955, 8, 18,/* 1 0 1 1 1 0 1 1 0 0 1 0 8/18/1955 1376*/0x0ADA, 1956, 8, 7,/* 0 1 0 1 1 0 1 1 0 1 0 1 8/7/1956 1377*/0x05D4, 1957, 7, 28,/* 0 0 1 0 1 0 1 1 1 0 1 0 7/28/1957 1378*/0x0DA9, 1958, 7, 17,/* 1 0 0 1 0 1 0 1 1 0 1 1 7/17/1958 1379*/0x0D52, 1959, 7, 7,/* 0 1 0 0 1 0 1 0 1 0 1 1 7/7/1959 1380*/0x0AAA, 1960, 6, 25,/* 0 1 0 1 0 1 0 1 0 1 0 1 6/25/1960 1381*/0x04D6, 1961, 6, 14,/* 0 1 1 0 1 0 1 1 0 0 1 0 6/14/1961 1382*/0x09B6, 1962, 6, 3,/* 0 1 1 0 1 1 0 1 1 0 0 1 6/3/1962 1383*/0x0374, 1963, 5, 24,/* 0 0 1 0 1 1 1 0 1 1 0 0 5/24/1963 1384*/0x0769, 1964, 5, 12,/* 1 0 0 1 0 1 1 0 1 1 1 0 5/12/1964 1385*/0x0752, 1965, 5, 2,/* 0 1 0 0 1 0 1 0 1 1 1 0 5/2/1965 1386*/0x06A5, 1966, 4, 21,/* 1 0 1 0 0 1 0 1 0 1 1 0 4/21/1966 1387*/0x054B, 1967, 4, 10,/* 1 1 0 1 0 0 1 0 1 0 1 0 4/10/1967 1388*/0x0AAB, 1968, 3, 29,/* 1 1 0 1 0 1 0 1 0 1 0 1 3/29/1968 1389*/0x055A, 1969, 3, 19,/* 0 1 0 1 1 0 1 0 1 0 1 0 3/19/1969 1390*/0x0AD5, 1970, 3, 8,/* 1 0 1 0 1 0 1 1 0 1 0 1 3/8/1970 1391*/0x0DD2, 1971, 2, 26,/* 0 1 0 0 1 0 1 1 1 0 1 1 2/26/1971 1392*/0x0DA4, 1972, 2, 16,/* 0 0 1 0 0 1 0 1 1 0 1 1 2/16/1972 1393*/0x0D49, 1973, 2, 4,/* 1 0 0 1 0 0 1 0 1 0 1 1 2/4/1973 1394*/0x0A95, 1974, 1, 24,/* 1 0 1 0 1 0 0 1 0 1 0 1 1/24/1974 1395*/0x052D, 1975, 1, 13,/* 1 0 1 1 0 1 0 0 1 0 1 0 1/13/1975 1396*/0x0A5D, 1976, 1, 2,/* 1 0 1 1 1 0 1 0 0 1 0 1 1/2/1976 1397*/0x055A, 1976, 12, 22,/* 0 1 0 1 1 0 1 0 1 0 1 0 12/22/1976 1398*/0x0AD5, 1977, 12, 11,/* 1 0 1 0 1 0 1 1 0 1 0 1 12/11/1977 1399*/0x06AA, 1978, 12, 1,/* 0 1 0 1 0 1 0 1 0 1 1 0 12/1/1978 1400*/0x0695, 1979, 11, 20,/* 1 0 1 0 1 0 0 1 0 1 1 0 11/20/1979 1401*/0x052B, 1980, 11, 8,/* 1 1 0 1 0 1 0 0 1 0 1 0 11/8/1980 1402*/0x0A57, 1981, 10, 28,/* 1 1 1 0 1 0 1 0 0 1 0 1 10/28/1981 1403*/0x04AE, 1982, 10, 18,/* 0 1 1 1 0 1 0 1 0 0 1 0 10/18/1982 1404*/0x0976, 1983, 10, 7,/* 0 1 1 0 1 1 1 0 1 0 0 1 10/7/1983 1405*/0x056C, 1984, 9, 26,/* 0 0 1 1 0 1 1 0 1 0 1 0 9/26/1984 1406*/0x0B55, 1985, 9, 15,/* 1 0 1 0 1 0 1 0 1 1 0 1 9/15/1985 1407*/0x0AAA, 1986, 9, 5,/* 0 1 0 1 0 1 0 1 0 1 0 1 9/5/1986 1408*/0x0A55, 1987, 8, 25,/* 1 0 1 0 1 0 1 0 0 1 0 1 8/25/1987 1409*/0x04AD, 1988, 8, 13,/* 1 0 1 1 0 1 0 1 0 0 1 0 8/13/1988 1410*/0x095D, 1989, 8, 2,/* 1 0 1 1 1 0 1 0 1 0 0 1 8/2/1989 1411*/0x02DA, 1990, 7, 23,/* 0 1 0 1 1 0 1 1 0 1 0 0 7/23/1990 1412*/0x05D9, 1991, 7, 12,/* 1 0 0 1 1 0 1 1 1 0 1 0 7/12/1991 1413*/0x0DB2, 1992, 7, 1,/* 0 1 0 0 1 1 0 1 1 0 1 1 7/1/1992 1414*/0x0BA4, 1993, 6, 21,/* 0 0 1 0 0 1 0 1 1 1 0 1 6/21/1993 1415*/0x0B4A, 1994, 6, 10,/* 0 1 0 1 0 0 1 0 1 1 0 1 6/10/1994 1416*/0x0A55, 1995, 5, 30,/* 1 0 1 0 1 0 1 0 0 1 0 1 5/30/1995 1417*/0x02B5, 1996, 5, 18,/* 1 0 1 0 1 1 0 1 0 1 0 0 5/18/1996 1418*/0x0575, 1997, 5, 7,/* 1 0 1 0 1 1 1 0 1 0 1 0 5/7/1997 1419*/0x0B6A, 1998, 4, 27,/* 0 1 0 1 0 1 1 0 1 1 0 1 4/27/1998 1420*/0x0BD2, 1999, 4, 17,/* 0 1 0 0 1 0 1 1 1 1 0 1 4/17/1999 1421*/0x0BC4, 2000, 4, 6,/* 0 0 1 0 0 0 1 1 1 1 0 1 4/6/2000 1422*/0x0B89, 2001, 3, 26,/* 1 0 0 1 0 0 0 1 1 1 0 1 3/26/2001 1423*/0x0A95, 2002, 3, 15,/* 1 0 1 0 1 0 0 1 0 1 0 1 3/15/2002 1424*/0x052D, 2003, 3, 4,/* 1 0 1 1 0 1 0 0 1 0 1 0 3/4/2003 1425*/0x05AD, 2004, 2, 21,/* 1 0 1 1 0 1 0 1 1 0 1 0 2/21/2004 1426*/0x0B6A, 2005, 2, 10,/* 0 1 0 1 0 1 1 0 1 1 0 1 2/10/2005 1427*/0x06D4, 2006, 1, 31,/* 0 0 1 0 1 0 1 1 0 1 1 0 1/31/2006 1428*/0x0DC9, 2007, 1, 20,/* 1 0 0 1 0 0 1 1 1 0 1 1 1/20/2007 1429*/0x0D92, 2008, 1, 10,/* 0 1 0 0 1 0 0 1 1 0 1 1 1/10/2008 1430*/0x0AA6, 2008, 12, 29,/* 0 1 1 0 0 1 0 1 0 1 0 1 12/29/2008 1431*/0x0956, 2009, 12, 18,/* 0 1 1 0 1 0 1 0 1 0 0 1 12/18/2009 1432*/0x02AE, 2010, 12, 7,/* 0 1 1 1 0 1 0 1 0 1 0 0 12/7/2010 1433*/0x056D, 2011, 11, 26,/* 1 0 1 1 0 1 1 0 1 0 1 0 11/26/2011 1434*/0x036A, 2012, 11, 15,/* 0 1 0 1 0 1 1 0 1 1 0 0 11/15/2012 1435*/0x0B55, 2013, 11, 4,/* 1 0 1 0 1 0 1 0 1 1 0 1 11/4/2013 1436*/0x0AAA, 2014, 10, 25,/* 0 1 0 1 0 1 0 1 0 1 0 1 10/25/2014 1437*/0x094D, 2015, 10, 14,/* 1 0 1 1 0 0 1 0 1 0 0 1 10/14/2015 1438*/0x049D, 2016, 10, 2,/* 1 0 1 1 1 0 0 1 0 0 1 0 10/2/2016 1439*/0x095D, 2017, 9, 21,/* 1 0 1 1 1 0 1 0 1 0 0 1 9/21/2017 1440*/0x02BA, 2018, 9, 11,/* 0 1 0 1 1 1 0 1 0 1 0 0 9/11/2018 1441*/0x05B5, 2019, 8, 31,/* 1 0 1 0 1 1 0 1 1 0 1 0 8/31/2019 1442*/0x05AA, 2020, 8, 20,/* 0 1 0 1 0 1 0 1 1 0 1 0 8/20/2020 1443*/0x0D55, 2021, 8, 9,/* 1 0 1 0 1 0 1 0 1 0 1 1 8/9/2021 1444*/0x0A9A, 2022, 7, 30,/* 0 1 0 1 1 0 0 1 0 1 0 1 7/30/2022 1445*/0x092E, 2023, 7, 19,/* 0 1 1 1 0 1 0 0 1 0 0 1 7/19/2023 1446*/0x026E, 2024, 7, 7,/* 0 1 1 1 0 1 1 0 0 1 0 0 7/7/2024 1447*/0x055D, 2025, 6, 26,/* 1 0 1 1 1 0 1 0 1 0 1 0 6/26/2025 1448*/0x0ADA, 2026, 6, 16,/* 0 1 0 1 1 0 1 1 0 1 0 1 6/16/2026 1449*/0x06D4, 2027, 6, 6,/* 0 0 1 0 1 0 1 1 0 1 1 0 6/6/2027 1450*/0x06A5, 2028, 5, 25,/* 1 0 1 0 0 1 0 1 0 1 1 0 5/25/2028 1451*/0x054B, 2029, 5, 14,/* 1 1 0 1 0 0 1 0 1 0 1 0 5/14/2029 1452*/0x0A97, 2030, 5, 3,/* 1 1 1 0 1 0 0 1 0 1 0 1 5/3/2030 1453*/0x054E, 2031, 4, 23,/* 0 1 1 1 0 0 1 0 1 0 1 0 4/23/2031 1454*/0x0AAE, 2032, 4, 11,/* 0 1 1 1 0 1 0 1 0 1 0 1 4/11/2032 1455*/0x05AC, 2033, 4, 1,/* 0 0 1 1 0 1 0 1 1 0 1 0 4/1/2033 1456*/0x0BA9, 2034, 3, 21,/* 1 0 0 1 0 1 0 1 1 1 0 1 3/21/2034 1457*/0x0D92, 2035, 3, 11,/* 0 1 0 0 1 0 0 1 1 0 1 1 3/11/2035 1458*/0x0B25, 2036, 2, 28,/* 1 0 1 0 0 1 0 0 1 1 0 1 2/28/2036 1459*/0x064B, 2037, 2, 16,/* 1 1 0 1 0 0 1 0 0 1 1 0 2/16/2037 1460*/0x0CAB, 2038, 2, 5,/* 1 1 0 1 0 1 0 1 0 0 1 1 2/5/2038 1461*/0x055A, 2039, 1, 26,/* 0 1 0 1 1 0 1 0 1 0 1 0 1/26/2039 1462*/0x0B55, 2040, 1, 15,/* 1 0 1 0 1 0 1 0 1 1 0 1 1/15/2040 1463*/0x06D2, 2041, 1, 4,/* 0 1 0 0 1 0 1 1 0 1 1 0 1/4/2041 1464*/0x0EA5, 2041, 12, 24,/* 1 0 1 0 0 1 0 1 0 1 1 1 12/24/2041 1465*/0x0E4A, 2042, 12, 14,/* 0 1 0 1 0 0 1 0 0 1 1 1 12/14/2042 1466*/0x0A95, 2043, 12, 3,/* 1 0 1 0 1 0 0 1 0 1 0 1 12/3/2043 1467*/0x052D, 2044, 11, 21,/* 1 0 1 1 0 1 0 0 1 0 1 0 11/21/2044 1468*/0x0AAD, 2045, 11, 10,/* 1 0 1 1 0 1 0 1 0 1 0 1 11/10/2045 1469*/0x036C, 2046, 10, 31,/* 0 0 1 1 0 1 1 0 1 1 0 0 10/31/2046 1470*/0x0759, 2047, 10, 20,/* 1 0 0 1 1 0 1 0 1 1 1 0 10/20/2047 1471*/0x06D2, 2048, 10, 9,/* 0 1 0 0 1 0 1 1 0 1 1 0 10/9/2048 1472*/0x0695, 2049, 9, 28,/* 1 0 1 0 1 0 0 1 0 1 1 0 9/28/2049 1473*/0x052D, 2050, 9, 17,/* 1 0 1 1 0 1 0 0 1 0 1 0 9/17/2050 1474*/0x0A5B, 2051, 9, 6,/* 1 1 0 1 1 0 1 0 0 1 0 1 9/6/2051 1475*/0x04BA, 2052, 8, 26,/* 0 1 0 1 1 1 0 1 0 0 1 0 8/26/2052 1476*/0x09BA, 2053, 8, 15,/* 0 1 0 1 1 1 0 1 1 0 0 1 8/15/2053 1477*/0x03B4, 2054, 8, 5,/* 0 0 1 0 1 1 0 1 1 1 0 0 8/5/2054 1478*/0x0B69, 2055, 7, 25,/* 1 0 0 1 0 1 1 0 1 1 0 1 7/25/2055 1479*/0x0B52, 2056, 7, 14,/* 0 1 0 0 1 0 1 0 1 1 0 1 7/14/2056 1480*/0x0AA6, 2057, 7, 3,/* 0 1 1 0 0 1 0 1 0 1 0 1 7/3/2057 1481*/0x04B6, 2058, 6, 22,/* 0 1 1 0 1 1 0 1 0 0 1 0 6/22/2058 1482*/0x096D, 2059, 6, 11,/* 1 0 1 1 0 1 1 0 1 0 0 1 6/11/2059 1483*/0x02EC, 2060, 5, 31,/* 0 0 1 1 0 1 1 1 0 1 0 0 5/31/2060 1484*/0x06D9, 2061, 5, 20,/* 1 0 0 1 1 0 1 1 0 1 1 0 5/20/2061 1485*/0x0EB2, 2062, 5, 10,/* 0 1 0 0 1 1 0 1 0 1 1 1 5/10/2062 1486*/0x0D54, 2063, 4, 30,/* 0 0 1 0 1 0 1 0 1 0 1 1 4/30/2063 1487*/0x0D2A, 2064, 4, 18,/* 0 1 0 1 0 1 0 0 1 0 1 1 4/18/2064 1488*/0x0A56, 2065, 4, 7,/* 0 1 1 0 1 0 1 0 0 1 0 1 4/7/2065 1489*/0x04AE, 2066, 3, 27,/* 0 1 1 1 0 1 0 1 0 0 1 0 3/27/2066 1490*/0x096D, 2067, 3, 16,/* 1 0 1 1 0 1 1 0 1 0 0 1 3/16/2067 1491*/0x0D6A, 2068, 3, 5,/* 0 1 0 1 0 1 1 0 1 0 1 1 3/5/2068 1492*/0x0B54, 2069, 2, 23,/* 0 0 1 0 1 0 1 0 1 1 0 1 2/23/2069 1493*/0x0B29, 2070, 2, 12,/* 1 0 0 1 0 1 0 0 1 1 0 1 2/12/2070 1494*/0x0A93, 2071, 2, 1,/* 1 1 0 0 1 0 0 1 0 1 0 1 2/1/2071 1495*/0x052B, 2072, 1, 21,/* 1 1 0 1 0 1 0 0 1 0 1 0 1/21/2072 1496*/0x0A57, 2073, 1, 9,/* 1 1 1 0 1 0 1 0 0 1 0 1 1/9/2073 1497*/0x0536, 2073, 12, 30,/* 0 1 1 0 1 1 0 0 1 0 1 0 12/30/2073 1498*/0x0AB5, 2074, 12, 19,/* 1 0 1 0 1 1 0 1 0 1 0 1 12/19/2074 1499*/0x06AA, 2075, 12, 9,/* 0 1 0 1 0 1 0 1 0 1 1 0 12/9/2075 1500*/0x0E93, 2076, 11, 27,/* 1 1 0 0 1 0 0 1 0 1 1 1 11/27/2076 1501*/ 0, 2077, 11, 17,/* 0 0 0 0 0 0 0 0 0 0 0 0 11/17/2077 */ }; // Direct inline initialization of DateMapping array would produce a lot of code bloat. // We take advantage of C# compiler compiles inline initialization of primitive type array into very compact code. // So we start with raw data stored in primitive type array, and initialize the DateMapping out of it DateMapping[] mapping = new DateMapping[rawData.Length / 4]; for (int i = 0; i < mapping.Length; i++) mapping[i] = new DateMapping(rawData[i * 4], rawData[i * 4 + 1], rawData[i * 4 + 2], rawData[i * 4 + 3]); return mapping; } public const int UmAlQuraEra = 1; internal const int DateCycle = 30; internal const int DatePartYear = 0; internal const int DatePartDayOfYear = 1; internal const int DatePartMonth = 2; internal const int DatePartDay = 3; // This is the minimal Gregorian date that we support in the UmAlQuraCalendar. internal static DateTime minDate = new DateTime(1900, 4, 30); internal static DateTime maxDate = new DateTime((new DateTime(2077, 11, 16, 23, 59, 59, 999)).Ticks + 9999); public override DateTime MinSupportedDateTime { get { return (minDate); } } public override DateTime MaxSupportedDateTime { get { return (maxDate); } } public override CalendarAlgorithmType AlgorithmType { get { return CalendarAlgorithmType.LunarCalendar; } } public UmAlQuraCalendar() { } internal override CalendarId BaseCalendarID { get { return (CalendarId.HIJRI); } } internal override CalendarId ID { get { return (CalendarId.UMALQURA); } } protected override int DaysInYearBeforeMinSupportedYear { get { // HijriCalendar has same number of days as UmAlQuraCalendar for any given year // HijriCalendar says year 1317 has 355 days. return 355; } } /*==========================ConvertHijriToGregorian========================== ** Purpose: convert Hdate(year,month,day) to Gdate(year,month,day) ** Arguments: ** Input/Ouput: Hijrah date: year:yh, month:mh, day:dh ** Output: Gregorian date: year:yg, month:mg, day:dg , day of week:dayweek ** and returns flag found:1 not found:0 =========================ConvertHijriToGregorian============================*/ private static void ConvertHijriToGregorian(int HijriYear, int HijriMonth, int HijriDay, ref int yg, ref int mg, ref int dg) { Debug.Assert((HijriYear >= MinCalendarYear) && (HijriYear <= MaxCalendarYear), "Hijri year is out of range."); Debug.Assert(HijriMonth >= 1, "Hijri month is out of range."); Debug.Assert(HijriDay >= 1, "Hijri day is out of range."); int index, b, nDays = HijriDay - 1; DateTime dt; index = HijriYear - MinCalendarYear; dt = s_hijriYearInfo[index].GregorianDate; b = s_hijriYearInfo[index].HijriMonthsLengthFlags; for (int m = 1; m < HijriMonth; m++) { nDays = nDays + 29 + (b & 1); /* Add the months lengths before mh */ b = b >> 1; } dt = dt.AddDays(nDays); yg = dt.Year; mg = dt.Month; dg = dt.Day; } /*=================================GetAbsoluteDateUmAlQura========================== **Action: Gets the Absolute date for the given UmAlQura date. The absolute date means ** the number of days from January 1st, 1 A.D. **Returns: **Arguments: **Exceptions: ============================================================================*/ private static long GetAbsoluteDateUmAlQura(int year, int month, int day) { //Caller should check the validaty of year, month and day. int yg = 0, mg = 0, dg = 0; ConvertHijriToGregorian(year, month, day, ref yg, ref mg, ref dg); return GregorianCalendar.GetAbsoluteDate(yg, mg, dg); } internal static void CheckTicksRange(long ticks) { if (ticks < minDate.Ticks || ticks > maxDate.Ticks) { throw new ArgumentOutOfRangeException( "time", String.Format( CultureInfo.InvariantCulture, SR.ArgumentOutOfRange_CalendarRange, minDate, maxDate)); } } internal static void CheckEraRange(int era) { if (era != CurrentEra && era != UmAlQuraEra) { throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue); } } internal static void CheckYearRange(int year, int era) { CheckEraRange(era); if (year < MinCalendarYear || year > MaxCalendarYear) { throw new ArgumentOutOfRangeException( nameof(year), String.Format( CultureInfo.CurrentCulture, SR.ArgumentOutOfRange_Range, MinCalendarYear, MaxCalendarYear)); } } internal static void CheckYearMonthRange(int year, int month, int era) { CheckYearRange(year, era); if (month < 1 || month > 12) { throw new ArgumentOutOfRangeException(nameof(month), SR.ArgumentOutOfRange_Month); } } /*========================ConvertGregorianToHijri============================ ** Purpose: convert DateTime to Hdate(year,month,day) ** Arguments: ** Input: DateTime ** Output: Hijrah date: year:yh, month:mh, day:dh ============================================================================*/ private static void ConvertGregorianToHijri(DateTime time, ref int HijriYear, ref int HijriMonth, ref int HijriDay) { int index, b, DaysPerThisMonth; double nDays; TimeSpan ts; int yh1 = 0, mh1 = 0, dh1 = 0; Debug.Assert((time.Ticks >= minDate.Ticks) && (time.Ticks <= maxDate.Ticks), "Gregorian date is out of range."); // Find the index where we should start our search by quessing the Hijri year that we will be in HijriYearInfo. // A Hijri year is 354 or 355 days. Use 355 days so that we will search from a lower index. index = (int)((time.Ticks - minDate.Ticks) / Calendar.TicksPerDay) / 355; do { } while (time.CompareTo(s_hijriYearInfo[++index].GregorianDate) > 0); //while greater if (time.CompareTo(s_hijriYearInfo[index].GregorianDate) != 0) { index--; } ts = time.Subtract(s_hijriYearInfo[index].GregorianDate); yh1 = index + MinCalendarYear; mh1 = 1; dh1 = 1; nDays = ts.TotalDays; b = s_hijriYearInfo[index].HijriMonthsLengthFlags; DaysPerThisMonth = 29 + (b & 1); while (nDays >= DaysPerThisMonth) { nDays -= DaysPerThisMonth; b = b >> 1; DaysPerThisMonth = 29 + (b & 1); mh1++; } dh1 += (int)nDays; HijriDay = dh1; HijriMonth = mh1; HijriYear = yh1; } /*=================================GetDatePart========================== **Action: Returns a given date part of this DateTime. This method is used ** to compute the year, day-of-year, month, or day part. **Returns: **Arguments: **Exceptions: ArgumentException if part is incorrect. **Notes: ** First, we get the absolute date (the number of days from January 1st, 1 A.C) for the given ticks. ** Use the formula (((AbsoluteDate - 226894) * 33) / (33 * 365 + 8)) + 1, we can a rough value for the UmAlQura year. ** In order to get the exact UmAlQura year, we compare the exact absolute date for UmAlQuraYear and (UmAlQuraYear + 1). ** From here, we can get the correct UmAlQura year. ============================================================================*/ internal virtual int GetDatePart(DateTime time, int part) { int UmAlQuraYear = 0; // UmAlQura year int UmAlQuraMonth = 0; // UmAlQura month int UmAlQuraDay = 0; // UmAlQura day long ticks = time.Ticks; CheckTicksRange(ticks); ConvertGregorianToHijri(time, ref UmAlQuraYear, ref UmAlQuraMonth, ref UmAlQuraDay); if (part == DatePartYear) return (UmAlQuraYear); if (part == DatePartMonth) return (UmAlQuraMonth); if (part == DatePartDay) return (UmAlQuraDay); if (part == DatePartDayOfYear) return (int)(GetAbsoluteDateUmAlQura(UmAlQuraYear, UmAlQuraMonth, UmAlQuraDay) - GetAbsoluteDateUmAlQura(UmAlQuraYear, 1, 1) + 1); // Incorrect part value. throw new InvalidOperationException(SR.InvalidOperation_DateTimeParsing); } // Returns the DateTime resulting from adding the given number of // months to the specified DateTime. The result is computed by incrementing // (or decrementing) the year and month parts of the specified DateTime by // value months, and, if required, adjusting the day part of the // resulting date downwards to the last day of the resulting month in the // resulting year. The time-of-day part of the result is the same as the // time-of-day part of the specified DateTime. // // In more precise terms, considering the specified DateTime to be of the // form y / m / d + t, where y is the // year, m is the month, d is the day, and t is the // time-of-day, the result is y1 / m1 / d1 + t, // where y1 and m1 are computed by adding value months // to y and m, and d1 is the largest value less than // or equal to d that denotes a valid day in month m1 of year // y1. // public override DateTime AddMonths(DateTime time, int months) { if (months < -120000 || months > 120000) { throw new ArgumentOutOfRangeException( nameof(months), String.Format( CultureInfo.CurrentCulture, SR.ArgumentOutOfRange_Range, -120000, 120000)); } Contract.EndContractBlock(); // Get the date in UmAlQura calendar. int y = GetDatePart(time, DatePartYear); int m = GetDatePart(time, DatePartMonth); int d = GetDatePart(time, DatePartDay); int i = m - 1 + months; if (i >= 0) { m = i % 12 + 1; y = y + i / 12; } else { m = 12 + (i + 1) % 12; y = y + (i - 11) / 12; } if (d > 29) { int days = GetDaysInMonth(y, m); if (d > days) { d = days; } } CheckYearRange(y, UmAlQuraEra); DateTime dt = new DateTime(GetAbsoluteDateUmAlQura(y, m, d) * TicksPerDay + time.Ticks % TicksPerDay); Calendar.CheckAddResult(dt.Ticks, MinSupportedDateTime, MaxSupportedDateTime); return (dt); } // Returns the DateTime resulting from adding the given number of // years to the specified DateTime. The result is computed by incrementing // (or decrementing) the year part of the specified DateTime by value // years. If the month and day of the specified DateTime is 2/29, and if the // resulting year is not a leap year, the month and day of the resulting // DateTime becomes 2/28. Otherwise, the month, day, and time-of-day // parts of the result are the same as those of the specified DateTime. // public override DateTime AddYears(DateTime time, int years) { return (AddMonths(time, years * 12)); } // Returns the day-of-month part of the specified DateTime. The returned // value is an integer between 1 and 31. // public override int GetDayOfMonth(DateTime time) { return (GetDatePart(time, DatePartDay)); } // Returns the day-of-week part of the specified DateTime. The returned value // is an integer between 0 and 6, where 0 indicates Sunday, 1 indicates // Monday, 2 indicates Tuesday, 3 indicates Wednesday, 4 indicates // Thursday, 5 indicates Friday, and 6 indicates Saturday. // public override DayOfWeek GetDayOfWeek(DateTime time) { return ((DayOfWeek)((int)(time.Ticks / TicksPerDay + 1) % 7)); } // Returns the day-of-year part of the specified DateTime. The returned value // is an integer between 1 and 354 or 355. // public override int GetDayOfYear(DateTime time) { return (GetDatePart(time, DatePartDayOfYear)); } /* internal bool CouldBeLeapYear(int year) { return ((((year * 11) + 14) % 30) < 11); } */ // Returns the number of days in the month given by the year and // month arguments. // public override int GetDaysInMonth(int year, int month, int era) { CheckYearMonthRange(year, month, era); if ((s_hijriYearInfo[year - MinCalendarYear].HijriMonthsLengthFlags & (1 << month - 1)) == 0) return 29; else return 30; } internal static int RealGetDaysInYear(int year) { int days = 0, b; Debug.Assert((year >= MinCalendarYear) && (year <= MaxCalendarYear), "Hijri year is out of range."); b = s_hijriYearInfo[year - MinCalendarYear].HijriMonthsLengthFlags; for (int m = 1; m <= 12; m++) { days = days + 29 + (b & 1); /* Add the months lengths before mh */ b = b >> 1; } Debug.Assert((days == 354) || (days == 355), "Hijri year has to be 354 or 355 days."); return days; } // Returns the number of days in the year given by the year argument for the current era. // public override int GetDaysInYear(int year, int era) { CheckYearRange(year, era); return (RealGetDaysInYear(year)); } // Returns the era for the specified DateTime value. public override int GetEra(DateTime time) { CheckTicksRange(time.Ticks); return (UmAlQuraEra); } public override int[] Eras { get { return (new int[] { UmAlQuraEra }); } } // Returns the month part of the specified DateTime. The returned value is an // integer between 1 and 12. // public override int GetMonth(DateTime time) { return (GetDatePart(time, DatePartMonth)); } // Returns the number of months in the specified year and era. public override int GetMonthsInYear(int year, int era) { CheckYearRange(year, era); return (12); } // Returns the year part of the specified DateTime. The returned value is an // integer between MinCalendarYear and MaxCalendarYear. // public override int GetYear(DateTime time) { return (GetDatePart(time, DatePartYear)); } // Checks whether a given day in the specified era is a leap day. This method returns true if // the date is a leap day, or false if not. // public override bool IsLeapDay(int year, int month, int day, int era) { if (day >= 1 && day <= 29) { CheckYearMonthRange(year, month, era); return (false); } // The year/month/era value checking is done in GetDaysInMonth(). int daysInMonth = GetDaysInMonth(year, month, era); if (day < 1 || day > daysInMonth) { throw new ArgumentOutOfRangeException( nameof(day), String.Format( CultureInfo.CurrentCulture, SR.ArgumentOutOfRange_Day, daysInMonth, month)); } return (false); } // Returns the leap month in a calendar year of the specified era. This method returns 0 // if this calendar does not have leap month, or this year is not a leap year. // public override int GetLeapMonth(int year, int era) { CheckYearRange(year, era); return (0); } // Checks whether a given month in the specified era is a leap month. This method returns true if // month is a leap month, or false if not. // public override bool IsLeapMonth(int year, int month, int era) { CheckYearMonthRange(year, month, era); return (false); } // Checks whether a given year in the specified era is a leap year. This method returns true if // year is a leap year, or false if not. // public override bool IsLeapYear(int year, int era) { CheckYearRange(year, era); if (RealGetDaysInYear(year) == 355) return true; else return false; } // Returns the date and time converted to a DateTime value. Throws an exception if the n-tuple is invalid. // public override DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era) { if (day >= 1 && day <= 29) { CheckYearMonthRange(year, month, era); goto DayInRang; } // The year/month/era value checking is done in GetDaysInMonth(). int daysInMonth = GetDaysInMonth(year, month, era); if (day < 1 || day > daysInMonth) { throw new ArgumentOutOfRangeException( nameof(day), String.Format( CultureInfo.CurrentCulture, SR.ArgumentOutOfRange_Day, daysInMonth, month)); } DayInRang: long lDate = GetAbsoluteDateUmAlQura(year, month, day); if (lDate >= 0) { return (new DateTime(lDate * GregorianCalendar.TicksPerDay + TimeToTicks(hour, minute, second, millisecond))); } else { throw new ArgumentOutOfRangeException(null, SR.ArgumentOutOfRange_BadYearMonthDay); } } private const int DEFAULT_TWO_DIGIT_YEAR_MAX = 1451; public override int TwoDigitYearMax { get { if (twoDigitYearMax == -1) { twoDigitYearMax = GetSystemTwoDigitYearSetting(ID, DEFAULT_TWO_DIGIT_YEAR_MAX); } return (twoDigitYearMax); } set { if (value != 99 && (value < MinCalendarYear || value > MaxCalendarYear)) { throw new ArgumentOutOfRangeException( nameof(value), String.Format( CultureInfo.CurrentCulture, SR.ArgumentOutOfRange_Range, MinCalendarYear, MaxCalendarYear)); } Contract.EndContractBlock(); VerifyWritable(); // We allow year 99 to be set so that one can make ToFourDigitYearMax a no-op by setting TwoDigitYearMax to 99. twoDigitYearMax = value; } } public override int ToFourDigitYear(int year) { if (year < 0) { throw new ArgumentOutOfRangeException(nameof(year), SR.ArgumentOutOfRange_NeedNonNegNum); } Contract.EndContractBlock(); if (year < 100) { return (base.ToFourDigitYear(year)); } if ((year < MinCalendarYear) || (year > MaxCalendarYear)) { throw new ArgumentOutOfRangeException( nameof(year), String.Format( CultureInfo.CurrentCulture, SR.ArgumentOutOfRange_Range, MinCalendarYear, MaxCalendarYear)); } return (year); } } }