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|
// System.Globalization.DateTimeFormatInfo
//
// Some useful functions are missing in the ECMA specs.
// They have been added following MS SDK Beta2
//
// Martin Weindel (martin.weindel@t-online.de)
//
// (C) Martin Weindel (martin.weindel@t-online.de)
//
// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Threading;
namespace System.Globalization
{
[Flags]
enum DateTimeFormatFlags {
Unused,
But,
Serialized,
By,
Microsoft
}
[Serializable]
[ComVisible (true)]
[StructLayout (LayoutKind.Sequential)]
public sealed class DateTimeFormatInfo : ICloneable, IFormatProvider {
private static readonly string MSG_READONLY = "This instance is read only";
private static readonly string MSG_ARRAYSIZE_MONTH = "An array with exactly 13 elements is needed";
private static readonly string MSG_ARRAYSIZE_DAY = "An array with exactly 7 elements is needed";
private static readonly string[] INVARIANT_ABBREVIATED_DAY_NAMES
= new string[7] { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
private static readonly string[] INVARIANT_DAY_NAMES
= new string[7] { "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
private static readonly string[] INVARIANT_ABBREVIATED_MONTH_NAMES
= new string[13] { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", ""};
private static readonly string[] INVARIANT_MONTH_NAMES
= new string[13] { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December", ""};
// private static readonly string[] INVARIANT_ERA_NAMES = {"A.D."};
static readonly string [] INVARIANT_SHORT_DAY_NAMES =
new string [7] {"Su", "Mo", "Tu", "We", "Th", "Fr", "Sa"};
private static DateTimeFormatInfo theInvariantDateTimeFormatInfo;
private const string _RoundtripPattern = "yyyy'-'MM'-'dd'T'HH':'mm':'ss.fffffffK";
#pragma warning disable 169
#region Sync with object-internals.h
private bool m_isReadOnly;
private string amDesignator;
private string pmDesignator;
private string dateSeparator;
private string timeSeparator;
private string shortDatePattern;
private string longDatePattern;
private string shortTimePattern;
private string longTimePattern;
private string monthDayPattern;
private string yearMonthPattern;
private string fullDateTimePattern;
private string _RFC1123Pattern;
private string _SortableDateTimePattern;
private string _UniversalSortableDateTimePattern;
private int firstDayOfWeek;
private Calendar calendar;
private int calendarWeekRule;
private string[] abbreviatedDayNames;
private string[] dayNames;
private string[] monthNames;
private string[] abbreviatedMonthNames;
// FIXME: not supported other than invariant
private string [] allShortDatePatterns;
private string [] allLongDatePatterns;
private string [] allShortTimePatterns;
private string [] allLongTimePatterns;
private string [] monthDayPatterns;
private string [] yearMonthPatterns;
private string [] shortDayNames;
#endregion
// MS Serialization needs this
private int nDataItem;
private bool m_useUserOverride;
private bool m_isDefaultCalendar;
private int CultureID;
private bool bUseCalendarInfo;
private string generalShortTimePattern;
private string generalLongTimePattern;
private string[] m_eraNames;
private string[] m_abbrevEraNames;
private string[] m_abbrevEnglishEraNames;
private string[] m_dateWords;
private int[] optionalCalendars;
private string[] m_superShortDayNames;
private string[] genitiveMonthNames;
private string[] m_genitiveAbbreviatedMonthNames;
private string[] leapYearMonthNames;
private DateTimeFormatFlags formatFlags;
private string m_name; // Unused, but MS.NET serializes this
#pragma warning restore 169
internal DateTimeFormatInfo(bool read_only)
{
m_isReadOnly = read_only;
amDesignator = "AM";
pmDesignator = "PM";
dateSeparator = "/";
timeSeparator = ":";
shortDatePattern = "MM/dd/yyyy";
longDatePattern = "dddd, dd MMMM yyyy";
shortTimePattern = "HH:mm";
longTimePattern = "HH:mm:ss";
monthDayPattern = "MMMM dd";
yearMonthPattern = "yyyy MMMM";
fullDateTimePattern = "dddd, dd MMMM yyyy HH:mm:ss";
// FIXME: for the following three pattern: "The
// default value of this property is derived
// from the calendar that is set for
// CultureInfo.CurrentCulture or the default
// calendar of CultureInfo.CurrentCulture."
// Actually, no predefined culture has different values
// than those default values.
_RFC1123Pattern = "ddd, dd MMM yyyy HH':'mm':'ss 'GMT'";
_SortableDateTimePattern = "yyyy'-'MM'-'dd'T'HH':'mm':'ss";
_UniversalSortableDateTimePattern = "yyyy'-'MM'-'dd HH':'mm':'ss'Z'";
firstDayOfWeek = (int)DayOfWeek.Sunday;
calendar = new GregorianCalendar();
calendarWeekRule = (int)CalendarWeekRule.FirstDay;
abbreviatedDayNames = INVARIANT_ABBREVIATED_DAY_NAMES;
dayNames = INVARIANT_DAY_NAMES;
abbreviatedMonthNames = INVARIANT_ABBREVIATED_MONTH_NAMES;
monthNames = INVARIANT_MONTH_NAMES;
m_genitiveAbbreviatedMonthNames = INVARIANT_ABBREVIATED_MONTH_NAMES;
genitiveMonthNames = INVARIANT_MONTH_NAMES;
shortDayNames = INVARIANT_SHORT_DAY_NAMES;
}
public DateTimeFormatInfo() : this (false)
{
}
public static DateTimeFormatInfo GetInstance(IFormatProvider provider)
{
if (provider != null) {
DateTimeFormatInfo dtfi;
dtfi = (DateTimeFormatInfo)provider.GetFormat(typeof(DateTimeFormatInfo));
if (dtfi != null)
return dtfi;
}
return CurrentInfo;
}
public bool IsReadOnly {
get {
return m_isReadOnly;
}
}
public static DateTimeFormatInfo ReadOnly(DateTimeFormatInfo dtfi)
{
DateTimeFormatInfo copy = (DateTimeFormatInfo)dtfi.Clone();
copy.m_isReadOnly = true;
return copy;
}
public object Clone ()
{
DateTimeFormatInfo clone = (DateTimeFormatInfo) MemberwiseClone();
// clone is not read only
clone.m_isReadOnly = false;
return clone;
}
public object GetFormat(Type formatType)
{
return (formatType == GetType()) ? this : null;
}
public string GetAbbreviatedEraName (int era)
{
if (era < 0 || era >= calendar.AbbreviatedEraNames.Length)
throw new ArgumentOutOfRangeException ("era", era.ToString ());
return calendar.AbbreviatedEraNames [era];
}
public string GetAbbreviatedMonthName(int month)
{
if (month < 1 || month > 13) throw new ArgumentOutOfRangeException();
return abbreviatedMonthNames[month-1];
}
public int GetEra (string eraName)
{
if (eraName == null)
throw new ArgumentNullException ();
string [] eras = calendar.EraNames;
for (int i = 0; i < eras.Length; i++)
if (CultureInfo.InvariantCulture.CompareInfo
.Compare (eraName, eras [i],
CompareOptions.IgnoreCase) == 0)
return calendar.Eras [i];
eras = calendar.AbbreviatedEraNames;
for (int i = 0; i < eras.Length; i++)
if (CultureInfo.InvariantCulture.CompareInfo
.Compare (eraName, eras [i],
CompareOptions.IgnoreCase) == 0)
return calendar.Eras [i];
return -1;
}
public string GetEraName (int era)
{
if (era < 0 || era > calendar.EraNames.Length)
throw new ArgumentOutOfRangeException ("era", era.ToString ());
return calendar.EraNames [era - 1];
}
public string GetMonthName(int month)
{
if (month < 1 || month > 13) throw new ArgumentOutOfRangeException();
return monthNames[month-1];
}
public string[] AbbreviatedDayNames
{
get { return (string[]) RawAbbreviatedDayNames.Clone (); }
set { RawAbbreviatedDayNames = value; }
}
internal string[] RawAbbreviatedDayNames
{
get
{
return abbreviatedDayNames;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
if (value.GetLength(0) != 7) throw new ArgumentException(MSG_ARRAYSIZE_DAY);
abbreviatedDayNames = (string[]) value.Clone();
}
}
public string[] AbbreviatedMonthNames
{
get { return (string[]) RawAbbreviatedMonthNames.Clone (); }
set { RawAbbreviatedMonthNames = value; }
}
internal string[] RawAbbreviatedMonthNames
{
get
{
return abbreviatedMonthNames;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
if (value.GetLength(0) != 13) throw new ArgumentException(MSG_ARRAYSIZE_MONTH);
abbreviatedMonthNames = (string[]) value.Clone();
}
}
public string[] DayNames
{
get { return (string[]) RawDayNames.Clone (); }
set { RawDayNames = value; }
}
internal string[] RawDayNames
{
get
{
return dayNames;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
if (value.GetLength(0) != 7) throw new ArgumentException(MSG_ARRAYSIZE_DAY);
dayNames = (string[]) value.Clone();
}
}
public string[] MonthNames
{
get { return (string[]) RawMonthNames.Clone (); }
set { RawMonthNames = value; }
}
internal string[] RawMonthNames
{
get
{
return monthNames;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
if (value.GetLength(0) != 13) throw new ArgumentException(MSG_ARRAYSIZE_MONTH);
monthNames = (string[]) value.Clone();
}
}
public string AMDesignator
{
get
{
return amDesignator;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
amDesignator = value;
}
}
public string PMDesignator
{
get
{
return pmDesignator;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
pmDesignator = value;
}
}
public string DateSeparator
{
get
{
return dateSeparator;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
dateSeparator = value;
}
}
public string TimeSeparator
{
get
{
return timeSeparator;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
timeSeparator = value;
}
}
public string LongDatePattern
{
get
{
return longDatePattern;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
longDatePattern = value;
}
}
public string ShortDatePattern
{
get
{
return shortDatePattern;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
shortDatePattern = value;
}
}
public string ShortTimePattern
{
get
{
return shortTimePattern;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
shortTimePattern = value;
}
}
public string LongTimePattern
{
get
{
return longTimePattern;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
longTimePattern = value;
}
}
public string MonthDayPattern
{
get
{
return monthDayPattern;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
monthDayPattern = value;
}
}
public string YearMonthPattern
{
get
{
return yearMonthPattern;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
yearMonthPattern = value;
}
}
public string FullDateTimePattern
{
get
{
if(fullDateTimePattern!=null) {
return fullDateTimePattern;
} else {
return(longDatePattern + " " + longTimePattern);
}
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
fullDateTimePattern = value;
}
}
public static DateTimeFormatInfo CurrentInfo
{
get
{
return Thread.CurrentThread.CurrentCulture.DateTimeFormat;
}
}
public static DateTimeFormatInfo InvariantInfo
{
get
{
if (theInvariantDateTimeFormatInfo == null) {
theInvariantDateTimeFormatInfo =
DateTimeFormatInfo.ReadOnly(new DateTimeFormatInfo());
theInvariantDateTimeFormatInfo.FillInvariantPatterns ();
}
return theInvariantDateTimeFormatInfo;
}
}
public DayOfWeek FirstDayOfWeek
{
get
{
return (DayOfWeek)firstDayOfWeek;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if ((int) value < 0 || (int) value > 6) throw new ArgumentOutOfRangeException();
firstDayOfWeek = (int)value;
}
}
public Calendar Calendar
{
get
{
return calendar;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
if (value == null) throw new ArgumentNullException();
calendar = value;
}
}
public CalendarWeekRule CalendarWeekRule
{
get
{
return (CalendarWeekRule)calendarWeekRule;
}
set
{
if (IsReadOnly) throw new InvalidOperationException(MSG_READONLY);
calendarWeekRule = (int)value;
}
}
public string RFC1123Pattern
{
get
{
return _RFC1123Pattern;
}
}
internal string RoundtripPattern
{
get
{
return _RoundtripPattern;
}
}
public string SortableDateTimePattern
{
get
{
return _SortableDateTimePattern;
}
}
public string UniversalSortableDateTimePattern
{
get
{
return _UniversalSortableDateTimePattern;
}
}
// FIXME: Not complete depending on GetAllDateTimePatterns(char)")]
public string[] GetAllDateTimePatterns ()
{
return (string[]) GetAllDateTimePatternsInternal ().Clone ();
}
// Same as above, but with no cloning, because we know that
// clients are friendly
internal string [] GetAllDateTimePatternsInternal ()
{
FillAllDateTimePatterns ();
return all_date_time_patterns;
}
// Prevent write reordering
volatile string [] all_date_time_patterns;
void FillAllDateTimePatterns (){
if (all_date_time_patterns != null)
return;
var al = new List<string> ();
al.AddRange (GetAllRawDateTimePatterns ('d'));
al.AddRange (GetAllRawDateTimePatterns ('D'));
al.AddRange (GetAllRawDateTimePatterns ('g'));
al.AddRange (GetAllRawDateTimePatterns ('G'));
al.AddRange (GetAllRawDateTimePatterns ('f'));
al.AddRange (GetAllRawDateTimePatterns ('F'));
// Yes, that is very meaningless, but that is what MS
// is doing (LAMESPEC: Since it is documented that
// 'M' and 'm' are equal, they should not cosider
// that there is a possibility that 'M' and 'm' are
// different.)
al.AddRange (GetAllRawDateTimePatterns ('m'));
al.AddRange (GetAllRawDateTimePatterns ('M'));
al.AddRange (GetAllRawDateTimePatterns ('r'));
al.AddRange (GetAllRawDateTimePatterns ('R'));
al.AddRange (GetAllRawDateTimePatterns ('s'));
al.AddRange (GetAllRawDateTimePatterns ('t'));
al.AddRange (GetAllRawDateTimePatterns ('T'));
al.AddRange (GetAllRawDateTimePatterns ('u'));
al.AddRange (GetAllRawDateTimePatterns ('U'));
al.AddRange (GetAllRawDateTimePatterns ('y'));
al.AddRange (GetAllRawDateTimePatterns ('Y'));
// all_date_time_patterns needs to be volatile to prevent
// reordering of writes here and still avoid any locking.
all_date_time_patterns = al.ToArray ();
}
//
// FIXME: We need more culture data in locale-builder
// Whoever put that comment, please expand.
//
public string[] GetAllDateTimePatterns (char format)
{
return (string[]) GetAllRawDateTimePatterns (format).Clone ();
}
internal string[] GetAllRawDateTimePatterns (char format)
{
string [] list;
switch (format) {
// Date
case 'D':
if (allLongDatePatterns != null && allLongDatePatterns.Length > 0)
return allLongDatePatterns;
return new string [] {LongDatePattern};
case 'd':
if (allShortDatePatterns != null && allShortDatePatterns.Length > 0)
return allShortDatePatterns;
return new string [] {ShortDatePattern};
// Time
case 'T':
if (allLongTimePatterns != null && allLongTimePatterns.Length > 0)
return allLongTimePatterns;
return new string [] {LongTimePattern};
case 't':
if (allShortTimePatterns != null && allShortTimePatterns.Length > 0)
return allShortTimePatterns;
return new string [] {ShortTimePattern};
// {Short|Long}Date + {Short|Long}Time
// FIXME: they should be the agglegation of the
// combination of the Date patterns and Time patterns.
case 'G':
list = PopulateCombinedList (allShortDatePatterns, allLongTimePatterns);
if (list != null && list.Length > 0)
return list;
return new string [] {ShortDatePattern + " " + LongTimePattern};
case 'g':
list = PopulateCombinedList (allShortDatePatterns, allShortTimePatterns);
if (list != null && list.Length > 0)
return list;
return new string [] {ShortDatePattern + " " + ShortTimePattern};
// The 'U' pattern strings are always the same as 'F'.
// (only differs in assuming UTC or not.)
case 'U':
case 'F':
list = PopulateCombinedList (allLongDatePatterns, allLongTimePatterns);
if (list != null && list.Length > 0)
return list;
return new string [] {LongDatePattern + " " + LongTimePattern};
case 'f':
list = PopulateCombinedList (allLongDatePatterns, allShortTimePatterns);
if (list != null && list.Length > 0)
return list;
return new string [] {LongDatePattern + " " + ShortTimePattern};
// MonthDay
case 'm':
case 'M':
if (monthDayPatterns != null && monthDayPatterns.Length > 0)
return monthDayPatterns;
return new string [] {MonthDayPattern};
// YearMonth
case 'Y':
case 'y':
if (yearMonthPatterns != null && yearMonthPatterns.Length > 0)
return yearMonthPatterns;
return new string [] {YearMonthPattern};
// RFC1123
case 'r':
case 'R':
return new string [] {RFC1123Pattern};
case 's':
return new string [] {SortableDateTimePattern};
case 'u':
return new string [] {UniversalSortableDateTimePattern};
}
throw new ArgumentException ("Format specifier was invalid.");
}
public string GetDayName(DayOfWeek dayofweek)
{
int index = (int) dayofweek;
if (index < 0 || index > 6) throw new ArgumentOutOfRangeException();
return dayNames[index];
}
public string GetAbbreviatedDayName(DayOfWeek dayofweek)
{
int index = (int) dayofweek;
if (index < 0 || index > 6) throw new ArgumentOutOfRangeException();
return abbreviatedDayNames[index];
}
private void FillInvariantPatterns ()
{
allShortDatePatterns = new string [] {"MM/dd/yyyy"};
allLongDatePatterns = new string [] {"dddd, dd MMMM yyyy"};
allLongTimePatterns = new string [] {"HH:mm:ss"};
allShortTimePatterns = new string [] {
"HH:mm",
"hh:mm tt",
"H:mm",
"h:mm tt"
};
monthDayPatterns = new string [] {"MMMM dd"};
yearMonthPatterns = new string [] {"yyyy MMMM"};
}
private string [] PopulateCombinedList (string [] dates, string [] times)
{
if (dates != null && times != null) {
string [] list = new string [dates.Length * times.Length];
int i = 0;
foreach (string d in dates)
foreach (string t in times)
list [i++] = d + " " + t;
return list;
}
return null;
}
[MonoLimitation ("Returns only the English month abbreviated names")]
[ComVisible (false)]
public string [] AbbreviatedMonthGenitiveNames {
get { return m_genitiveAbbreviatedMonthNames; }
set { m_genitiveAbbreviatedMonthNames = value; }
}
[MonoLimitation ("Returns only the English month names")]
[ComVisible (false)]
public string [] MonthGenitiveNames {
get { return genitiveMonthNames; }
set { genitiveMonthNames = value; }
}
[MonoLimitation ("Returns an empty string as if the calendar name wasn't available")]
[ComVisible (false)]
public string NativeCalendarName {
get { return String.Empty; }
}
[ComVisible (false)]
public string [] ShortestDayNames {
get {
return shortDayNames;
}
set {
if (value == null)
throw new ArgumentNullException ();
if (value.Length != 7)
throw new ArgumentException ("Array must have 7 entries");
for (int i = 0; i < 7; i++)
if (value [i] == null)
throw new ArgumentNullException (String.Format ("Element {0} is null", i));
shortDayNames = value;
}
}
[ComVisible (false)]
public string GetShortestDayName (DayOfWeek dayOfWeek)
{
int index = (int) dayOfWeek;
if (index < 0 || index > 6)
throw new ArgumentOutOfRangeException();
return shortDayNames [index];
}
[ComVisible (false)]
public void SetAllDateTimePatterns (string [] patterns, char format)
{
if (patterns == null)
throw new ArgumentNullException ("patterns");
if (patterns.Length == 0)
throw new ArgumentException ("patterns", "The argument patterns must not be of zero-length");
switch (format) {
// YearMonth
case 'Y':
case 'y':
yearMonthPatterns = patterns;
break;
// MonthDay
case 'm':
case 'M':
monthDayPatterns = patterns;
break;
// Date
case 'D':
allLongDatePatterns = patterns;
break;
case 'd':
allShortDatePatterns = patterns;
break;
// Time
case 'T':
allLongTimePatterns = patterns;
break;
case 't':
allShortTimePatterns = patterns;
break;
default:
// note that any other formats are invalid (such as 'r', 'g', 'U')
throw new ArgumentException ("format", "Format specifier is invalid");
}
}
}
}
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