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Diffstat (limited to 'src/mscorlib/src/System/Globalization/JapaneseCalendar.cs')
| -rw-r--r-- | src/mscorlib/src/System/Globalization/JapaneseCalendar.cs | 581 |
1 files changed, 0 insertions, 581 deletions
diff --git a/src/mscorlib/src/System/Globalization/JapaneseCalendar.cs b/src/mscorlib/src/System/Globalization/JapaneseCalendar.cs deleted file mode 100644 index 72331f8346..0000000000 --- a/src/mscorlib/src/System/Globalization/JapaneseCalendar.cs +++ /dev/null @@ -1,581 +0,0 @@ -// 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. - -namespace System.Globalization { - - using System; - using System.Diagnostics.CodeAnalysis; - using System.Diagnostics.Contracts; - using Microsoft.Win32; - - /*=================================JapaneseCalendar========================== - ** - ** JapaneseCalendar is based on Gregorian calendar. The month and day values are the same as - ** Gregorian calendar. However, the year value is an offset to the Gregorian - ** year based on the era. - ** - ** This system is adopted by Emperor Meiji in 1868. The year value is counted based on the reign of an emperor, - ** and the era begins on the day an emperor ascends the throne and continues until his death. - ** The era changes at 12:00AM. - ** - ** For example, the current era is Heisei. It started on 1989/1/8 A.D. Therefore, Gregorian year 1989 is also Heisei 1st. - ** 1989/1/8 A.D. is also Heisei 1st 1/8. - ** - ** Any date in the year during which era is changed can be reckoned in either era. For example, - ** 1989/1/1 can be 1/1 Heisei 1st year or 1/1 Showa 64th year. - ** - ** Note: - ** The DateTime can be represented by the JapaneseCalendar are limited to two factors: - ** 1. The min value and max value of DateTime class. - ** 2. The available era information. - ** - ** Calendar support range: - ** Calendar Minimum Maximum - ** ========== ========== ========== - ** Gregorian 1868/09/08 9999/12/31 - ** Japanese Meiji 01/01 Heisei 8011/12/31 - ============================================================================*/ - - - [Serializable] - public class JapaneseCalendar : Calendar - { - internal static readonly DateTime calendarMinValue = new DateTime(1868, 9, 8); - - - public override DateTime MinSupportedDateTime - { - get - { - return (calendarMinValue); - } - } - - public override DateTime MaxSupportedDateTime - { - get - { - return (DateTime.MaxValue); - } - } - - // Return the type of the Japanese calendar. - // - - public override CalendarAlgorithmType AlgorithmType - { - get - { - return CalendarAlgorithmType.SolarCalendar; - } - } - - // - // Using a field initializer rather than a static constructor so that the whole class can be lazy - // init. - static internal volatile EraInfo[] japaneseEraInfo; - - // - // Read our era info - // - // m_EraInfo must be listed in reverse chronological order. The most recent era - // should be the first element. - // That is, m_EraInfo[0] contains the most recent era. - // - // We know about 4 built-in eras, however users may add additional era(s) from the - // registry, by adding values to HKLM\SYSTEM\CurrentControlSet\Control\Nls\Calendars\Japanese\Eras - // - // Registry values look like: - // yyyy.mm.dd=era_abbrev_english_englishabbrev - // - // Where yyyy.mm.dd is the registry value name, and also the date of the era start. - // yyyy, mm, and dd are the year, month & day the era begins (4, 2 & 2 digits long) - // era is the Japanese Era name - // abbrev is the Abbreviated Japanese Era Name - // english is the English name for the Era (unused) - // englishabbrev is the Abbreviated English name for the era. - // . is a delimiter, but the value of . doesn't matter. - // '_' marks the space between the japanese era name, japanese abbreviated era name - // english name, and abbreviated english names. - // - internal static EraInfo[] GetEraInfo() - { - // See if we need to build it - if (japaneseEraInfo == null) - { - // See if we have any eras from the registry - japaneseEraInfo = GetErasFromRegistry(); - - // See if we have to use the built-in eras - if (japaneseEraInfo == null) - { - // We know about some built-in ranges - EraInfo[] defaultEraRanges = new EraInfo[4]; - defaultEraRanges[0] = new EraInfo( 4, 1989, 1, 8, 1988, 1, GregorianCalendar.MaxYear - 1988, - "\x5e73\x6210", "\x5e73", "H"); // era #4 start year/month/day, yearOffset, minEraYear - defaultEraRanges[1] = new EraInfo( 3, 1926, 12, 25, 1925, 1, 1989-1925, - "\x662d\x548c", "\x662d", "S"); // era #3,start year/month/day, yearOffset, minEraYear - defaultEraRanges[2] = new EraInfo( 2, 1912, 7, 30, 1911, 1, 1926-1911, - "\x5927\x6b63", "\x5927", "T"); // era #2,start year/month/day, yearOffset, minEraYear - defaultEraRanges[3] = new EraInfo( 1, 1868, 1, 1, 1867, 1, 1912-1867, - "\x660e\x6cbb", "\x660e", "M"); // era #1,start year/month/day, yearOffset, minEraYear - - // Remember the ranges we built - japaneseEraInfo = defaultEraRanges; - } - } - - // return the era we found/made - return japaneseEraInfo; - } - - -#if FEATURE_WIN32_REGISTRY - private const string c_japaneseErasHive = @"System\CurrentControlSet\Control\Nls\Calendars\Japanese\Eras"; - private const string c_japaneseErasHivePermissionList = @"HKEY_LOCAL_MACHINE\" + c_japaneseErasHive; - - // - // GetErasFromRegistry() - // - // We know about 4 built-in eras, however users may add additional era(s) from the - // registry, by adding values to HKLM\SYSTEM\CurrentControlSet\Control\Nls\Calendars\Japanese\Eras - // - // Registry values look like: - // yyyy.mm.dd=era_abbrev_english_englishabbrev - // - // Where yyyy.mm.dd is the registry value name, and also the date of the era start. - // yyyy, mm, and dd are the year, month & day the era begins (4, 2 & 2 digits long) - // era is the Japanese Era name - // abbrev is the Abbreviated Japanese Era Name - // english is the English name for the Era (unused) - // englishabbrev is the Abbreviated English name for the era. - // . is a delimiter, but the value of . doesn't matter. - // '_' marks the space between the japanese era name, japanese abbreviated era name - // english name, and abbreviated english names. - private static EraInfo[] GetErasFromRegistry() - { - // Look in the registry key and see if we can find any ranges - int iFoundEras = 0; - EraInfo[] registryEraRanges = null; - - try - { - RegistryKey key = Registry.LocalMachine.OpenSubKey(c_japaneseErasHive, writable: false); - - // Abort if we didn't find anything - if (key == null) return null; - - // Look up the values in our reg key - String[] valueNames = key.GetValueNames(); - if (valueNames != null && valueNames.Length > 0) - { - registryEraRanges = new EraInfo[valueNames.Length]; - - // Loop through the registry and read in all the values - for (int i = 0; i < valueNames.Length; i++) - { - // See if the era is a valid date - EraInfo era = GetEraFromValue(valueNames[i], key.GetValue(valueNames[i]).ToString()); - - // continue if not valid - if (era == null) continue; - - // Remember we found one. - registryEraRanges[iFoundEras] = era; - iFoundEras++; - } - } - } - catch (System.Security.SecurityException) - { - // If we weren't allowed to read, then just ignore the error - return null; - } - catch (System.IO.IOException) - { - // If key is being deleted just ignore the error - return null; - } - catch (System.UnauthorizedAccessException) - { - // Registry access rights permissions, just ignore the error - return null; - } - - // - // If we didn't have valid eras, then fail - // should have at least 4 eras - // - if (iFoundEras < 4) return null; - - // - // Now we have eras, clean them up. - // - // Clean up array length - Array.Resize(ref registryEraRanges, iFoundEras); - - // Sort them - Array.Sort(registryEraRanges, CompareEraRanges); - - // Clean up era information - for (int i = 0; i < registryEraRanges.Length; i++) - { - // eras count backwards from length to 1 (and are 1 based indexes into string arrays) - registryEraRanges[i].era = registryEraRanges.Length - i; - - // update max era year - if (i == 0) - { - // First range is 'til the end of the calendar - registryEraRanges[0].maxEraYear = GregorianCalendar.MaxYear - registryEraRanges[0].yearOffset; - } - else - { - // Rest are until the next era (remember most recent era is first in array) - registryEraRanges[i].maxEraYear = registryEraRanges[i-1].yearOffset + 1 - registryEraRanges[i].yearOffset; - } - } - - // Return our ranges - return registryEraRanges; - } -#else - private static EraInfo[] GetErasFromRegistry() - { - return null; - } -#endif - - // - // Compare two era ranges, eg just the ticks - // Remember the era array is supposed to be in reverse chronological order - // - private static int CompareEraRanges(EraInfo a, EraInfo b) - { - return b.ticks.CompareTo(a.ticks); - } - - // - // GetEraFromValue - // - // Parse the registry value name/data pair into an era - // - // Registry values look like: - // yyyy.mm.dd=era_abbrev_english_englishabbrev - // - // Where yyyy.mm.dd is the registry value name, and also the date of the era start. - // yyyy, mm, and dd are the year, month & day the era begins (4, 2 & 2 digits long) - // era is the Japanese Era name - // abbrev is the Abbreviated Japanese Era Name - // english is the English name for the Era (unused) - // englishabbrev is the Abbreviated English name for the era. - // . is a delimiter, but the value of . doesn't matter. - // '_' marks the space between the japanese era name, japanese abbreviated era name - // english name, and abbreviated english names. - private static EraInfo GetEraFromValue(String value, String data) - { - // Need inputs - if (value == null || data == null) return null; - - // - // Get Date - // - // Need exactly 10 characters in name for date - // yyyy.mm.dd although the . can be any character - if (value.Length != 10) return null; - - int year; - int month; - int day; - - if (!Number.TryParseInt32(value.Substring(0,4), NumberStyles.None, NumberFormatInfo.InvariantInfo, out year) || - !Number.TryParseInt32(value.Substring(5,2), NumberStyles.None, NumberFormatInfo.InvariantInfo, out month) || - !Number.TryParseInt32(value.Substring(8,2), NumberStyles.None, NumberFormatInfo.InvariantInfo, out day)) - { - // Couldn't convert integer, fail - return null; - } - - // - // Get Strings - // - // Needs to be a certain length e_a_E_A at least (7 chars, exactly 4 groups) - String[] names = data.Split('_'); - - // Should have exactly 4 parts - // 0 - Era Name - // 1 - Abbreviated Era Name - // 2 - English Era Name - // 3 - Abbreviated English Era Name - if (names.Length != 4) return null; - - // Each part should have data in it - if (names[0].Length == 0 || - names[1].Length == 0 || - names[2].Length == 0 || - names[3].Length == 0) - return null; - - // - // Now we have an era we can build - // Note that the era # and max era year need cleaned up after sorting - // Don't use the full English Era Name (names[2]) - // - return new EraInfo( 0, year, month, day, year - 1, 1, 0, - names[0], names[1], names[3]); - } - - internal static volatile Calendar s_defaultInstance; - internal GregorianCalendarHelper helper; - - /*=================================GetDefaultInstance========================== - **Action: Internal method to provide a default intance of JapaneseCalendar. Used by NLS+ implementation - ** and other calendars. - **Returns: - **Arguments: - **Exceptions: - ============================================================================*/ - - internal static Calendar GetDefaultInstance() { - if (s_defaultInstance == null) { - s_defaultInstance = new JapaneseCalendar(); - } - return (s_defaultInstance); - } - - - public JapaneseCalendar() { - try { - new CultureInfo("ja-JP"); - } catch (ArgumentException e) { - throw new TypeInitializationException(this.GetType().FullName, e); - } - helper = new GregorianCalendarHelper(this, GetEraInfo()); - } - - internal override int ID { - get { - return (CAL_JAPAN); - } - } - - - public override DateTime AddMonths(DateTime time, int months) { - return (helper.AddMonths(time, months)); - } - - - public override DateTime AddYears(DateTime time, int years) { - return (helper.AddYears(time, years)); - } - - /*=================================GetDaysInMonth========================== - **Action: Returns the number of days in the month given by the year and month arguments. - **Returns: The number of days in the given month. - **Arguments: - ** year The year in Japanese calendar. - ** month The month - ** era The Japanese era value. - **Exceptions - ** ArgumentException If month is less than 1 or greater * than 12. - ============================================================================*/ - - - public override int GetDaysInMonth(int year, int month, int era) { - return (helper.GetDaysInMonth(year, month, era)); - } - - - public override int GetDaysInYear(int year, int era) { - return (helper.GetDaysInYear(year, era)); - } - - - public override int GetDayOfMonth(DateTime time) { - return (helper.GetDayOfMonth(time)); - } - - - public override DayOfWeek GetDayOfWeek(DateTime time) { - return (helper.GetDayOfWeek(time)); - } - - - public override int GetDayOfYear(DateTime time) - { - return (helper.GetDayOfYear(time)); - } - - - public override int GetMonthsInYear(int year, int era) - { - return (helper.GetMonthsInYear(year, era)); - } - - - [SuppressMessage("Microsoft.Contracts", "CC1055")] // Skip extra error checking to avoid *potential* AppCompat problems. - public override int GetWeekOfYear(DateTime time, CalendarWeekRule rule, DayOfWeek firstDayOfWeek) - { - return (helper.GetWeekOfYear(time, rule, firstDayOfWeek)); - } - - /*=================================GetEra========================== - **Action: Get the era value of the specified time. - **Returns: The era value for the specified time. - **Arguments: - ** time the specified date time. - **Exceptions: ArgumentOutOfRangeException if time is out of the valid era ranges. - ============================================================================*/ - - - public override int GetEra(DateTime time) { - return (helper.GetEra(time)); - } - - - public override int GetMonth(DateTime time) { - return (helper.GetMonth(time)); - } - - - public override int GetYear(DateTime time) { - return (helper.GetYear(time)); - } - - - public override bool IsLeapDay(int year, int month, int day, int era) - { - return (helper.IsLeapDay(year, month, day, era)); - } - - - public override bool IsLeapYear(int year, int era) { - return (helper.IsLeapYear(year, era)); - } - - // 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) - { - return (helper.GetLeapMonth(year, era)); - } - - - public override bool IsLeapMonth(int year, int month, int era) { - return (helper.IsLeapMonth(year, month, era)); - } - - - public override DateTime ToDateTime(int year, int month, int day, int hour, int minute, int second, int millisecond, int era) { - return (helper.ToDateTime(year, month, day, hour, minute, second, millisecond, era)); - } - - // For Japanese calendar, four digit year is not used. Few emperors will live for more than one hundred years. - // Therefore, for any two digit number, we just return the original number. - - public override int ToFourDigitYear(int year) { - if (year <= 0) { - throw new ArgumentOutOfRangeException(nameof(year), - Environment.GetResourceString("ArgumentOutOfRange_NeedPosNum")); - } - Contract.EndContractBlock(); - - if (year > helper.MaxYear) { - throw new ArgumentOutOfRangeException( - nameof(year), - String.Format( - CultureInfo.CurrentCulture, - Environment.GetResourceString("ArgumentOutOfRange_Range"), - 1, - helper.MaxYear)); - } - return (year); - } - - - public override int[] Eras { - get { - return (helper.Eras); - } - } - - // - // Return the various era strings - // Note: The arrays are backwards of the eras - // - internal static String[] EraNames() - { - EraInfo[] eras = GetEraInfo(); - String[] eraNames = new String[eras.Length]; - - for (int i = 0; i < eras.Length; i++) - { - // Strings are in chronological order, eras are backwards order. - eraNames[i] = eras[eras.Length - i - 1].eraName; - } - - return eraNames; - } - - internal static String[] AbbrevEraNames() - { - EraInfo[] eras = GetEraInfo(); - String[] erasAbbrev = new String[eras.Length]; - - for (int i = 0; i < eras.Length; i++) - { - // Strings are in chronological order, eras are backwards order. - erasAbbrev[i] = eras[eras.Length - i - 1].abbrevEraName; - } - - return erasAbbrev; - } - - internal static String[] EnglishEraNames() - { - EraInfo[] eras = GetEraInfo(); - String[] erasEnglish = new String[eras.Length]; - - for (int i = 0; i < eras.Length; i++) - { - // Strings are in chronological order, eras are backwards order. - erasEnglish[i] = eras[eras.Length - i - 1].englishEraName; - } - - return erasEnglish; - } - - private const int DEFAULT_TWO_DIGIT_YEAR_MAX = 99; - - internal override bool IsValidYear(int year, int era) { - return helper.IsValidYear(year, era); - } - - public override int TwoDigitYearMax { - get { - if (twoDigitYearMax == -1) { - twoDigitYearMax = GetSystemTwoDigitYearSetting(ID, DEFAULT_TWO_DIGIT_YEAR_MAX); - } - return (twoDigitYearMax); - } - - set { - VerifyWritable(); - if (value < 99 || value > helper.MaxYear) - { - throw new ArgumentOutOfRangeException( - "year", - String.Format( - CultureInfo.CurrentCulture, - Environment.GetResourceString("ArgumentOutOfRange_Range"), - 99, - helper.MaxYear)); - } - twoDigitYearMax = value; - } - } - } -} |