summaryrefslogtreecommitdiff
path: root/src/mscorlib/corefx/System/Globalization/JapaneseCalendar.Win32.cs
diff options
context:
space:
mode:
Diffstat (limited to 'src/mscorlib/corefx/System/Globalization/JapaneseCalendar.Win32.cs')
-rw-r--r--src/mscorlib/corefx/System/Globalization/JapaneseCalendar.Win32.cs209
1 files changed, 0 insertions, 209 deletions
diff --git a/src/mscorlib/corefx/System/Globalization/JapaneseCalendar.Win32.cs b/src/mscorlib/corefx/System/Globalization/JapaneseCalendar.Win32.cs
deleted file mode 100644
index a83c4fad9e..0000000000
--- a/src/mscorlib/corefx/System/Globalization/JapaneseCalendar.Win32.cs
+++ /dev/null
@@ -1,209 +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.
-
-using System.Diagnostics;
-
-using Microsoft.Win32;
-
-namespace System.Globalization
-{
- public partial class JapaneseCalendar : Calendar
- {
- private const string c_japaneseErasHive = @"System\CurrentControlSet\Control\Nls\Calendars\Japanese\Eras";
- private const string c_japaneseErasHivePermissionList = @"HKEY_LOCAL_MACHINE\" + c_japaneseErasHive;
-
- // 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[] GetJapaneseEras()
- {
- // Look in the registry key and see if we can find any ranges
- int iFoundEras = 0;
- EraInfo[] registryEraRanges = null;
-
- try
- {
- // Need to access registry
- RegistryKey key = RegistryKey.GetBaseKey(RegistryKey.HKEY_LOCAL_MACHINE).OpenSubKey(c_japaneseErasHive, 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;
- }
-
- //
- // 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 (!Int32.TryParse(value.Substring(0, 4), NumberStyles.None, NumberFormatInfo.InvariantInfo, out year) ||
- !Int32.TryParse(value.Substring(5, 2), NumberStyles.None, NumberFormatInfo.InvariantInfo, out month) ||
- !Int32.TryParse(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]);
- }
-
- // PAL Layer ends here
-
- private static string[] s_japaneseErasEnglishNames = new String[] { "M", "T", "S", "H" };
-
- private static string GetJapaneseEnglishEraName(int era)
- {
- Debug.Assert(era > 0);
- return era <= s_japaneseErasEnglishNames.Length ? s_japaneseErasEnglishNames[era - 1] : " ";
- }
- }
-}