--- /dev/null
+// 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.Text;
+using System.Threading;
+using System.Globalization;
+using System.Collections.Generic;
+using System.Runtime.CompilerServices;
+using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
+using System.Security;
+using System.Diagnostics;
+using System.Diagnostics.Contracts;
+
+namespace System
+{
+ /*
+ Customized format patterns:
+ P.S. Format in the table below is the internal number format used to display the pattern.
+
+ Patterns Format Description Example
+ ========= ========== ===================================== ========
+ "h" "0" hour (12-hour clock)w/o leading zero 3
+ "hh" "00" hour (12-hour clock)with leading zero 03
+ "hh*" "00" hour (12-hour clock)with leading zero 03
+
+ "H" "0" hour (24-hour clock)w/o leading zero 8
+ "HH" "00" hour (24-hour clock)with leading zero 08
+ "HH*" "00" hour (24-hour clock) 08
+
+ "m" "0" minute w/o leading zero
+ "mm" "00" minute with leading zero
+ "mm*" "00" minute with leading zero
+
+ "s" "0" second w/o leading zero
+ "ss" "00" second with leading zero
+ "ss*" "00" second with leading zero
+
+ "f" "0" second fraction (1 digit)
+ "ff" "00" second fraction (2 digit)
+ "fff" "000" second fraction (3 digit)
+ "ffff" "0000" second fraction (4 digit)
+ "fffff" "00000" second fraction (5 digit)
+ "ffffff" "000000" second fraction (6 digit)
+ "fffffff" "0000000" second fraction (7 digit)
+
+ "F" "0" second fraction (up to 1 digit)
+ "FF" "00" second fraction (up to 2 digit)
+ "FFF" "000" second fraction (up to 3 digit)
+ "FFFF" "0000" second fraction (up to 4 digit)
+ "FFFFF" "00000" second fraction (up to 5 digit)
+ "FFFFFF" "000000" second fraction (up to 6 digit)
+ "FFFFFFF" "0000000" second fraction (up to 7 digit)
+
+ "t" first character of AM/PM designator A
+ "tt" AM/PM designator AM
+ "tt*" AM/PM designator PM
+
+ "d" "0" day w/o leading zero 1
+ "dd" "00" day with leading zero 01
+ "ddd" short weekday name (abbreviation) Mon
+ "dddd" full weekday name Monday
+ "dddd*" full weekday name Monday
+
+
+ "M" "0" month w/o leading zero 2
+ "MM" "00" month with leading zero 02
+ "MMM" short month name (abbreviation) Feb
+ "MMMM" full month name Febuary
+ "MMMM*" full month name Febuary
+
+ "y" "0" two digit year (year % 100) w/o leading zero 0
+ "yy" "00" two digit year (year % 100) with leading zero 00
+ "yyy" "D3" year 2000
+ "yyyy" "D4" year 2000
+ "yyyyy" "D5" year 2000
+ ...
+
+ "z" "+0;-0" timezone offset w/o leading zero -8
+ "zz" "+00;-00" timezone offset with leading zero -08
+ "zzz" "+00;-00" for hour offset, "00" for minute offset full timezone offset -07:30
+ "zzz*" "+00;-00" for hour offset, "00" for minute offset full timezone offset -08:00
+
+ "K" -Local "zzz", e.g. -08:00
+ -Utc "'Z'", representing UTC
+ -Unspecified ""
+ -DateTimeOffset "zzzzz" e.g -07:30:15
+
+ "g*" the current era name A.D.
+
+ ":" time separator : -- DEPRECATED - Insert separator directly into pattern (eg: "H.mm.ss")
+ "/" date separator /-- DEPRECATED - Insert separator directly into pattern (eg: "M-dd-yyyy")
+ "'" quoted string 'ABC' will insert ABC into the formatted string.
+ '"' quoted string "ABC" will insert ABC into the formatted string.
+ "%" used to quote a single pattern characters E.g.The format character "%y" is to print two digit year.
+ "\" escaped character E.g. '\d' insert the character 'd' into the format string.
+ other characters insert the character into the format string.
+
+ Pre-defined format characters:
+ (U) to indicate Universal time is used.
+ (G) to indicate Gregorian calendar is used.
+
+ Format Description Real format Example
+ ========= ================================= ====================== =======================
+ "d" short date culture-specific 10/31/1999
+ "D" long data culture-specific Sunday, October 31, 1999
+ "f" full date (long date + short time) culture-specific Sunday, October 31, 1999 2:00 AM
+ "F" full date (long date + long time) culture-specific Sunday, October 31, 1999 2:00:00 AM
+ "g" general date (short date + short time) culture-specific 10/31/1999 2:00 AM
+ "G" general date (short date + long time) culture-specific 10/31/1999 2:00:00 AM
+ "m"/"M" Month/Day date culture-specific October 31
+(G) "o"/"O" Round Trip XML "yyyy-MM-ddTHH:mm:ss.fffffffK" 1999-10-31 02:00:00.0000000Z
+(G) "r"/"R" RFC 1123 date, "ddd, dd MMM yyyy HH':'mm':'ss 'GMT'" Sun, 31 Oct 1999 10:00:00 GMT
+(G) "s" Sortable format, based on ISO 8601. "yyyy-MM-dd'T'HH:mm:ss" 1999-10-31T02:00:00
+ ('T' for local time)
+ "t" short time culture-specific 2:00 AM
+ "T" long time culture-specific 2:00:00 AM
+(G) "u" Universal time with sortable format, "yyyy'-'MM'-'dd HH':'mm':'ss'Z'" 1999-10-31 10:00:00Z
+ based on ISO 8601.
+(U) "U" Universal time with full culture-specific Sunday, October 31, 1999 10:00:00 AM
+ (long date + long time) format
+ "y"/"Y" Year/Month day culture-specific October, 1999
+
+ */
+
+ //This class contains only static members and does not require the serializable attribute.
+ internal static
+ class DateTimeFormat
+ {
+ internal const int MaxSecondsFractionDigits = 7;
+ internal static readonly TimeSpan NullOffset = TimeSpan.MinValue;
+
+ internal static char[] allStandardFormats =
+ {
+ 'd', 'D', 'f', 'F', 'g', 'G',
+ 'm', 'M', 'o', 'O', 'r', 'R',
+ 's', 't', 'T', 'u', 'U', 'y', 'Y',
+ };
+
+ internal const String RoundtripFormat = "yyyy'-'MM'-'dd'T'HH':'mm':'ss.fffffffK";
+ internal const String RoundtripDateTimeUnfixed = "yyyy'-'MM'-'ddTHH':'mm':'ss zzz";
+
+ private const int DEFAULT_ALL_DATETIMES_SIZE = 132;
+
+ internal static readonly DateTimeFormatInfo InvariantFormatInfo = CultureInfo.InvariantCulture.DateTimeFormat;
+ internal static readonly string[] InvariantAbbreviatedMonthNames = InvariantFormatInfo.AbbreviatedMonthNames;
+ internal static readonly string[] InvariantAbbreviatedDayNames = InvariantFormatInfo.AbbreviatedDayNames;
+ internal const string Gmt = "GMT";
+
+ internal static String[] fixedNumberFormats = new String[] {
+ "0",
+ "00",
+ "000",
+ "0000",
+ "00000",
+ "000000",
+ "0000000",
+ };
+
+ ////////////////////////////////////////////////////////////////////////////
+ //
+ // Format the positive integer value to a string and perfix with assigned
+ // length of leading zero.
+ //
+ // Parameters:
+ // value: The value to format
+ // len: The maximum length for leading zero.
+ // If the digits of the value is greater than len, no leading zero is added.
+ //
+ // Notes:
+ // The function can format to Int32.MaxValue.
+ //
+ ////////////////////////////////////////////////////////////////////////////
+ internal static void FormatDigits(StringBuilder outputBuffer, int value, int len)
+ {
+ Debug.Assert(value >= 0, "DateTimeFormat.FormatDigits(): value >= 0");
+ FormatDigits(outputBuffer, value, len, false);
+ }
+
+ internal unsafe static void FormatDigits(StringBuilder outputBuffer, int value, int len, bool overrideLengthLimit)
+ {
+ Debug.Assert(value >= 0, "DateTimeFormat.FormatDigits(): value >= 0");
+
+ // Limit the use of this function to be two-digits, so that we have the same behavior
+ // as RTM bits.
+ if (!overrideLengthLimit && len > 2)
+ {
+ len = 2;
+ }
+
+ char* buffer = stackalloc char[16];
+ char* p = buffer + 16;
+ int n = value;
+ do
+ {
+ *--p = (char)(n % 10 + '0');
+ n /= 10;
+ } while ((n != 0) && (p > buffer));
+
+ int digits = (int)(buffer + 16 - p);
+
+ //If the repeat count is greater than 0, we're trying
+ //to emulate the "00" format, so we have to prepend
+ //a zero if the string only has one character.
+ while ((digits < len) && (p > buffer))
+ {
+ *--p = '0';
+ digits++;
+ }
+ outputBuffer.Append(p, digits);
+ }
+
+ private static void HebrewFormatDigits(StringBuilder outputBuffer, int digits)
+ {
+ outputBuffer.Append(HebrewNumber.ToString(digits));
+ }
+
+ internal static int ParseRepeatPattern(String format, int pos, char patternChar)
+ {
+ int len = format.Length;
+ int index = pos + 1;
+ while ((index < len) && (format[index] == patternChar))
+ {
+ index++;
+ }
+ return (index - pos);
+ }
+
+ private static String FormatDayOfWeek(int dayOfWeek, int repeat, DateTimeFormatInfo dtfi)
+ {
+ Debug.Assert(dayOfWeek >= 0 && dayOfWeek <= 6, "dayOfWeek >= 0 && dayOfWeek <= 6");
+ if (repeat == 3)
+ {
+ return (dtfi.GetAbbreviatedDayName((DayOfWeek)dayOfWeek));
+ }
+ // Call dtfi.GetDayName() here, instead of accessing DayNames property, because we don't
+ // want a clone of DayNames, which will hurt perf.
+ return (dtfi.GetDayName((DayOfWeek)dayOfWeek));
+ }
+
+ private static String FormatMonth(int month, int repeatCount, DateTimeFormatInfo dtfi)
+ {
+ Debug.Assert(month >= 1 && month <= 12, "month >=1 && month <= 12");
+ if (repeatCount == 3)
+ {
+ return (dtfi.GetAbbreviatedMonthName(month));
+ }
+ // Call GetMonthName() here, instead of accessing MonthNames property, because we don't
+ // want a clone of MonthNames, which will hurt perf.
+ return (dtfi.GetMonthName(month));
+ }
+
+ //
+ // FormatHebrewMonthName
+ //
+ // Action: Return the Hebrew month name for the specified DateTime.
+ // Returns: The month name string for the specified DateTime.
+ // Arguments:
+ // time the time to format
+ // month The month is the value of HebrewCalendar.GetMonth(time).
+ // repeat Return abbreviated month name if repeat=3, or full month name if repeat=4
+ // dtfi The DateTimeFormatInfo which uses the Hebrew calendars as its calendar.
+ // Exceptions: None.
+ //
+
+ /* Note:
+ If DTFI is using Hebrew calendar, GetMonthName()/GetAbbreviatedMonthName() will return month names like this:
+ 1 Hebrew 1st Month
+ 2 Hebrew 2nd Month
+ .. ...
+ 6 Hebrew 6th Month
+ 7 Hebrew 6th Month II (used only in a leap year)
+ 8 Hebrew 7th Month
+ 9 Hebrew 8th Month
+ 10 Hebrew 9th Month
+ 11 Hebrew 10th Month
+ 12 Hebrew 11th Month
+ 13 Hebrew 12th Month
+
+ Therefore, if we are in a regular year, we have to increment the month name if moth is greater or eqaul to 7.
+ */
+ private static String FormatHebrewMonthName(DateTime time, int month, int repeatCount, DateTimeFormatInfo dtfi)
+ {
+ Debug.Assert(repeatCount != 3 || repeatCount != 4, "repeateCount should be 3 or 4");
+ if (dtfi.Calendar.IsLeapYear(dtfi.Calendar.GetYear(time)))
+ {
+ // This month is in a leap year
+ return (dtfi.internalGetMonthName(month, MonthNameStyles.LeapYear, (repeatCount == 3)));
+ }
+ // This is in a regular year.
+ if (month >= 7)
+ {
+ month++;
+ }
+ if (repeatCount == 3)
+ {
+ return (dtfi.GetAbbreviatedMonthName(month));
+ }
+ return (dtfi.GetMonthName(month));
+ }
+
+ //
+ // The pos should point to a quote character. This method will
+ // append to the result StringBuilder the string encloed by the quote character.
+ //
+ internal static int ParseQuoteString(String format, int pos, StringBuilder result)
+ {
+ //
+ // NOTE : pos will be the index of the quote character in the 'format' string.
+ //
+ int formatLen = format.Length;
+ int beginPos = pos;
+ char quoteChar = format[pos++]; // Get the character used to quote the following string.
+
+ bool foundQuote = false;
+ while (pos < formatLen)
+ {
+ char ch = format[pos++];
+ if (ch == quoteChar)
+ {
+ foundQuote = true;
+ break;
+ }
+ else if (ch == '\\')
+ {
+ // The following are used to support escaped character.
+ // Escaped character is also supported in the quoted string.
+ // Therefore, someone can use a format like "'minute:' mm\"" to display:
+ // minute: 45"
+ // because the second double quote is escaped.
+ if (pos < formatLen)
+ {
+ result.Append(format[pos++]);
+ }
+ else
+ {
+ //
+ // This means that '\' is at the end of the formatting string.
+ //
+ throw new FormatException(SR.Format_InvalidString);
+ }
+ }
+ else
+ {
+ result.Append(ch);
+ }
+ }
+
+ if (!foundQuote)
+ {
+ // Here we can't find the matching quote.
+ throw new FormatException(
+ String.Format(
+ CultureInfo.CurrentCulture,
+ SR.Format_BadQuote, quoteChar));
+ }
+
+ //
+ // Return the character count including the begin/end quote characters and enclosed string.
+ //
+ return (pos - beginPos);
+ }
+
+ //
+ // Get the next character at the index of 'pos' in the 'format' string.
+ // Return value of -1 means 'pos' is already at the end of the 'format' string.
+ // Otherwise, return value is the int value of the next character.
+ //
+ internal static int ParseNextChar(String format, int pos)
+ {
+ if (pos >= format.Length - 1)
+ {
+ return (-1);
+ }
+ return ((int)format[pos + 1]);
+ }
+
+ //
+ // IsUseGenitiveForm
+ //
+ // Actions: Check the format to see if we should use genitive month in the formatting.
+ // Starting at the position (index) in the (format) string, look back and look ahead to
+ // see if there is "d" or "dd". In the case like "d MMMM" or "MMMM dd", we can use
+ // genitive form. Genitive form is not used if there is more than two "d".
+ // Arguments:
+ // format The format string to be scanned.
+ // index Where we should start the scanning. This is generally where "M" starts.
+ // tokenLen The len of the current pattern character. This indicates how many "M" that we have.
+ // patternToMatch The pattern that we want to search. This generally uses "d"
+ //
+ private static bool IsUseGenitiveForm(String format, int index, int tokenLen, char patternToMatch)
+ {
+ int i;
+ int repeat = 0;
+ //
+ // Look back to see if we can find "d" or "ddd"
+ //
+
+ // Find first "d".
+ for (i = index - 1; i >= 0 && format[i] != patternToMatch; i--) { /*Do nothing here */ };
+
+ if (i >= 0)
+ {
+ // Find a "d", so look back to see how many "d" that we can find.
+ while (--i >= 0 && format[i] == patternToMatch)
+ {
+ repeat++;
+ }
+ //
+ // repeat == 0 means that we have one (patternToMatch)
+ // repeat == 1 means that we have two (patternToMatch)
+ //
+ if (repeat <= 1)
+ {
+ return (true);
+ }
+ // Note that we can't just stop here. We may find "ddd" while looking back, and we have to look
+ // ahead to see if there is "d" or "dd".
+ }
+
+ //
+ // If we can't find "d" or "dd" by looking back, try look ahead.
+ //
+
+ // Find first "d"
+ for (i = index + tokenLen; i < format.Length && format[i] != patternToMatch; i++) { /* Do nothing here */ };
+
+ if (i < format.Length)
+ {
+ repeat = 0;
+ // Find a "d", so contine the walk to see how may "d" that we can find.
+ while (++i < format.Length && format[i] == patternToMatch)
+ {
+ repeat++;
+ }
+ //
+ // repeat == 0 means that we have one (patternToMatch)
+ // repeat == 1 means that we have two (patternToMatch)
+ //
+ if (repeat <= 1)
+ {
+ return (true);
+ }
+ }
+ return (false);
+ }
+
+
+ //
+ // FormatCustomized
+ //
+ // Actions: Format the DateTime instance using the specified format.
+ //
+ private static String FormatCustomized(DateTime dateTime, String format, DateTimeFormatInfo dtfi, TimeSpan offset)
+ {
+ Calendar cal = dtfi.Calendar;
+ StringBuilder result = StringBuilderCache.Acquire();
+ // This is a flag to indicate if we are format the dates using Hebrew calendar.
+
+ bool isHebrewCalendar = (cal.ID == CalendarId.HEBREW);
+ // This is a flag to indicate if we are formating hour/minute/second only.
+ bool bTimeOnly = true;
+
+ int i = 0;
+ int tokenLen, hour12;
+
+ while (i < format.Length)
+ {
+ char ch = format[i];
+ int nextChar;
+ switch (ch)
+ {
+ case 'g':
+ tokenLen = ParseRepeatPattern(format, i, ch);
+ result.Append(dtfi.GetEraName(cal.GetEra(dateTime)));
+ break;
+ case 'h':
+ tokenLen = ParseRepeatPattern(format, i, ch);
+ hour12 = dateTime.Hour % 12;
+ if (hour12 == 0)
+ {
+ hour12 = 12;
+ }
+ FormatDigits(result, hour12, tokenLen);
+ break;
+ case 'H':
+ tokenLen = ParseRepeatPattern(format, i, ch);
+ FormatDigits(result, dateTime.Hour, tokenLen);
+ break;
+ case 'm':
+ tokenLen = ParseRepeatPattern(format, i, ch);
+ FormatDigits(result, dateTime.Minute, tokenLen);
+ break;
+ case 's':
+ tokenLen = ParseRepeatPattern(format, i, ch);
+ FormatDigits(result, dateTime.Second, tokenLen);
+ break;
+ case 'f':
+ case 'F':
+ tokenLen = ParseRepeatPattern(format, i, ch);
+ if (tokenLen <= MaxSecondsFractionDigits)
+ {
+ long fraction = (dateTime.Ticks % Calendar.TicksPerSecond);
+ fraction = fraction / (long)Math.Pow(10, 7 - tokenLen);
+ if (ch == 'f')
+ {
+ result.Append(((int)fraction).ToString(fixedNumberFormats[tokenLen - 1], CultureInfo.InvariantCulture));
+ }
+ else
+ {
+ int effectiveDigits = tokenLen;
+ while (effectiveDigits > 0)
+ {
+ if (fraction % 10 == 0)
+ {
+ fraction = fraction / 10;
+ effectiveDigits--;
+ }
+ else
+ {
+ break;
+ }
+ }
+ if (effectiveDigits > 0)
+ {
+ result.Append(((int)fraction).ToString(fixedNumberFormats[effectiveDigits - 1], CultureInfo.InvariantCulture));
+ }
+ else
+ {
+ // No fraction to emit, so see if we should remove decimal also.
+ if (result.Length > 0 && result[result.Length - 1] == '.')
+ {
+ result.Remove(result.Length - 1, 1);
+ }
+ }
+ }
+ }
+ else
+ {
+ throw new FormatException(SR.Format_InvalidString);
+ }
+ break;
+ case 't':
+ tokenLen = ParseRepeatPattern(format, i, ch);
+ if (tokenLen == 1)
+ {
+ if (dateTime.Hour < 12)
+ {
+ if (dtfi.AMDesignator.Length >= 1)
+ {
+ result.Append(dtfi.AMDesignator[0]);
+ }
+ }
+ else
+ {
+ if (dtfi.PMDesignator.Length >= 1)
+ {
+ result.Append(dtfi.PMDesignator[0]);
+ }
+ }
+ }
+ else
+ {
+ result.Append((dateTime.Hour < 12 ? dtfi.AMDesignator : dtfi.PMDesignator));
+ }
+ break;
+ case 'd':
+ //
+ // tokenLen == 1 : Day of month as digits with no leading zero.
+ // tokenLen == 2 : Day of month as digits with leading zero for single-digit months.
+ // tokenLen == 3 : Day of week as a three-leter abbreviation.
+ // tokenLen >= 4 : Day of week as its full name.
+ //
+ tokenLen = ParseRepeatPattern(format, i, ch);
+ if (tokenLen <= 2)
+ {
+ int day = cal.GetDayOfMonth(dateTime);
+ if (isHebrewCalendar)
+ {
+ // For Hebrew calendar, we need to convert numbers to Hebrew text for yyyy, MM, and dd values.
+ HebrewFormatDigits(result, day);
+ }
+ else
+ {
+ FormatDigits(result, day, tokenLen);
+ }
+ }
+ else
+ {
+ int dayOfWeek = (int)cal.GetDayOfWeek(dateTime);
+ result.Append(FormatDayOfWeek(dayOfWeek, tokenLen, dtfi));
+ }
+ bTimeOnly = false;
+ break;
+ case 'M':
+ //
+ // tokenLen == 1 : Month as digits with no leading zero.
+ // tokenLen == 2 : Month as digits with leading zero for single-digit months.
+ // tokenLen == 3 : Month as a three-letter abbreviation.
+ // tokenLen >= 4 : Month as its full name.
+ //
+ tokenLen = ParseRepeatPattern(format, i, ch);
+ int month = cal.GetMonth(dateTime);
+ if (tokenLen <= 2)
+ {
+ if (isHebrewCalendar)
+ {
+ // For Hebrew calendar, we need to convert numbers to Hebrew text for yyyy, MM, and dd values.
+ HebrewFormatDigits(result, month);
+ }
+ else
+ {
+ FormatDigits(result, month, tokenLen);
+ }
+ }
+ else
+ {
+ if (isHebrewCalendar)
+ {
+ result.Append(FormatHebrewMonthName(dateTime, month, tokenLen, dtfi));
+ }
+ else
+ {
+ if ((dtfi.FormatFlags & DateTimeFormatFlags.UseGenitiveMonth) != 0 && tokenLen >= 4)
+ {
+ result.Append(
+ dtfi.internalGetMonthName(
+ month,
+ IsUseGenitiveForm(format, i, tokenLen, 'd') ? MonthNameStyles.Genitive : MonthNameStyles.Regular,
+ false));
+ }
+ else
+ {
+ result.Append(FormatMonth(month, tokenLen, dtfi));
+ }
+ }
+ }
+ bTimeOnly = false;
+ break;
+ case 'y':
+ // Notes about OS behavior:
+ // y: Always print (year % 100). No leading zero.
+ // yy: Always print (year % 100) with leading zero.
+ // yyy/yyyy/yyyyy/... : Print year value. No leading zero.
+
+ int year = cal.GetYear(dateTime);
+ tokenLen = ParseRepeatPattern(format, i, ch);
+ if (dtfi.HasForceTwoDigitYears)
+ {
+ FormatDigits(result, year, tokenLen <= 2 ? tokenLen : 2);
+ }
+ else if (cal.ID == CalendarId.HEBREW)
+ {
+ HebrewFormatDigits(result, year);
+ }
+ else
+ {
+ if (tokenLen <= 2)
+ {
+ FormatDigits(result, year % 100, tokenLen);
+ }
+ else
+ {
+ String fmtPattern = "D" + tokenLen.ToString();
+ result.Append(year.ToString(fmtPattern, CultureInfo.InvariantCulture));
+ }
+ }
+ bTimeOnly = false;
+ break;
+ case 'z':
+ tokenLen = ParseRepeatPattern(format, i, ch);
+ FormatCustomizedTimeZone(dateTime, offset, format, tokenLen, bTimeOnly, result);
+ break;
+ case 'K':
+ tokenLen = 1;
+ FormatCustomizedRoundripTimeZone(dateTime, offset, result);
+ break;
+ case ':':
+ result.Append(dtfi.TimeSeparator);
+ tokenLen = 1;
+ break;
+ case '/':
+ result.Append(dtfi.DateSeparator);
+ tokenLen = 1;
+ break;
+ case '\'':
+ case '\"':
+ tokenLen = ParseQuoteString(format, i, result);
+ break;
+ case '%':
+ // Optional format character.
+ // For example, format string "%d" will print day of month
+ // without leading zero. Most of the cases, "%" can be ignored.
+ nextChar = ParseNextChar(format, i);
+ // nextChar will be -1 if we already reach the end of the format string.
+ // Besides, we will not allow "%%" appear in the pattern.
+ if (nextChar >= 0 && nextChar != (int)'%')
+ {
+ result.Append(FormatCustomized(dateTime, ((char)nextChar).ToString(), dtfi, offset));
+ tokenLen = 2;
+ }
+ else
+ {
+ //
+ // This means that '%' is at the end of the format string or
+ // "%%" appears in the format string.
+ //
+ throw new FormatException(SR.Format_InvalidString);
+ }
+ break;
+ case '\\':
+ // Escaped character. Can be used to insert character into the format string.
+ // For exmple, "\d" will insert the character 'd' into the string.
+ //
+ // NOTENOTE : we can remove this format character if we enforce the enforced quote
+ // character rule.
+ // That is, we ask everyone to use single quote or double quote to insert characters,
+ // then we can remove this character.
+ //
+ nextChar = ParseNextChar(format, i);
+ if (nextChar >= 0)
+ {
+ result.Append(((char)nextChar));
+ tokenLen = 2;
+ }
+ else
+ {
+ //
+ // This means that '\' is at the end of the formatting string.
+ //
+ throw new FormatException(SR.Format_InvalidString);
+ }
+ break;
+ default:
+ // NOTENOTE : we can remove this rule if we enforce the enforced quote
+ // character rule.
+ // That is, if we ask everyone to use single quote or double quote to insert characters,
+ // then we can remove this default block.
+ result.Append(ch);
+ tokenLen = 1;
+ break;
+ }
+ i += tokenLen;
+ }
+ return StringBuilderCache.GetStringAndRelease(result);
+ }
+
+
+ // output the 'z' famliy of formats, which output a the offset from UTC, e.g. "-07:30"
+ private static void FormatCustomizedTimeZone(DateTime dateTime, TimeSpan offset, String format, Int32 tokenLen, Boolean timeOnly, StringBuilder result)
+ {
+ // See if the instance already has an offset
+ Boolean dateTimeFormat = (offset == NullOffset);
+ if (dateTimeFormat)
+ {
+ // No offset. The instance is a DateTime and the output should be the local time zone
+
+ if (timeOnly && dateTime.Ticks < Calendar.TicksPerDay)
+ {
+ // For time only format and a time only input, the time offset on 0001/01/01 is less
+ // accurate than the system's current offset because of daylight saving time.
+ offset = TimeZoneInfo.GetLocalUtcOffset(DateTime.Now, TimeZoneInfoOptions.NoThrowOnInvalidTime);
+ }
+ else if (dateTime.Kind == DateTimeKind.Utc)
+ {
+ offset = TimeSpan.Zero;
+ }
+ else
+ {
+ offset = TimeZoneInfo.GetLocalUtcOffset(dateTime, TimeZoneInfoOptions.NoThrowOnInvalidTime);
+ }
+ }
+ if (offset >= TimeSpan.Zero)
+ {
+ result.Append('+');
+ }
+ else
+ {
+ result.Append('-');
+ // get a positive offset, so that you don't need a separate code path for the negative numbers.
+ offset = offset.Negate();
+ }
+
+ if (tokenLen <= 1)
+ {
+ // 'z' format e.g "-7"
+ result.AppendFormat(CultureInfo.InvariantCulture, "{0:0}", offset.Hours);
+ }
+ else
+ {
+ // 'zz' or longer format e.g "-07"
+ result.AppendFormat(CultureInfo.InvariantCulture, "{0:00}", offset.Hours);
+ if (tokenLen >= 3)
+ {
+ // 'zzz*' or longer format e.g "-07:30"
+ result.AppendFormat(CultureInfo.InvariantCulture, ":{0:00}", offset.Minutes);
+ }
+ }
+ }
+
+ // output the 'K' format, which is for round-tripping the data
+ private static void FormatCustomizedRoundripTimeZone(DateTime dateTime, TimeSpan offset, StringBuilder result)
+ {
+ // The objective of this format is to round trip the data in the type
+ // For DateTime it should round-trip the Kind value and preserve the time zone.
+ // DateTimeOffset instance, it should do so by using the internal time zone.
+
+ if (offset == NullOffset)
+ {
+ // source is a date time, so behavior depends on the kind.
+ switch (dateTime.Kind)
+ {
+ case DateTimeKind.Local:
+ // This should output the local offset, e.g. "-07:30"
+ offset = TimeZoneInfo.GetLocalUtcOffset(dateTime, TimeZoneInfoOptions.NoThrowOnInvalidTime);
+ // fall through to shared time zone output code
+ break;
+ case DateTimeKind.Utc:
+ // The 'Z' constant is a marker for a UTC date
+ result.Append("Z");
+ return;
+ default:
+ // If the kind is unspecified, we output nothing here
+ return;
+ }
+ }
+ if (offset >= TimeSpan.Zero)
+ {
+ result.Append('+');
+ }
+ else
+ {
+ result.Append('-');
+ // get a positive offset, so that you don't need a separate code path for the negative numbers.
+ offset = offset.Negate();
+ }
+
+ AppendNumber(result, offset.Hours, 2);
+ result.Append(':');
+ AppendNumber(result, offset.Minutes, 2);
+ }
+
+
+ internal static String GetRealFormat(String format, DateTimeFormatInfo dtfi)
+ {
+ String realFormat = null;
+
+ switch (format[0])
+ {
+ case 'd': // Short Date
+ realFormat = dtfi.ShortDatePattern;
+ break;
+ case 'D': // Long Date
+ realFormat = dtfi.LongDatePattern;
+ break;
+ case 'f': // Full (long date + short time)
+ realFormat = dtfi.LongDatePattern + " " + dtfi.ShortTimePattern;
+ break;
+ case 'F': // Full (long date + long time)
+ realFormat = dtfi.FullDateTimePattern;
+ break;
+ case 'g': // General (short date + short time)
+ realFormat = dtfi.GeneralShortTimePattern;
+ break;
+ case 'G': // General (short date + long time)
+ realFormat = dtfi.GeneralLongTimePattern;
+ break;
+ case 'm':
+ case 'M': // Month/Day Date
+ realFormat = dtfi.MonthDayPattern;
+ break;
+ case 'o':
+ case 'O':
+ realFormat = RoundtripFormat;
+ break;
+ case 'r':
+ case 'R': // RFC 1123 Standard
+ realFormat = dtfi.RFC1123Pattern;
+ break;
+ case 's': // Sortable without Time Zone Info
+ realFormat = dtfi.SortableDateTimePattern;
+ break;
+ case 't': // Short Time
+ realFormat = dtfi.ShortTimePattern;
+ break;
+ case 'T': // Long Time
+ realFormat = dtfi.LongTimePattern;
+ break;
+ case 'u': // Universal with Sortable format
+ realFormat = dtfi.UniversalSortableDateTimePattern;
+ break;
+ case 'U': // Universal with Full (long date + long time) format
+ realFormat = dtfi.FullDateTimePattern;
+ break;
+ case 'y':
+ case 'Y': // Year/Month Date
+ realFormat = dtfi.YearMonthPattern;
+ break;
+ default:
+ throw new FormatException(SR.Format_InvalidString);
+ }
+ return (realFormat);
+ }
+
+
+ // Expand a pre-defined format string (like "D" for long date) to the real format that
+ // we are going to use in the date time parsing.
+ // This method also convert the dateTime if necessary (e.g. when the format is in Universal time),
+ // and change dtfi if necessary (e.g. when the format should use invariant culture).
+ //
+ private static String ExpandPredefinedFormat(String format, ref DateTime dateTime, ref DateTimeFormatInfo dtfi, ref TimeSpan offset)
+ {
+ switch (format[0])
+ {
+ case 'o':
+ case 'O': // Round trip format
+ dtfi = DateTimeFormatInfo.InvariantInfo;
+ break;
+ case 'r':
+ case 'R': // RFC 1123 Standard
+ if (offset != NullOffset)
+ {
+ // Convert to UTC invariants mean this will be in range
+ dateTime = dateTime - offset;
+ }
+ else if (dateTime.Kind == DateTimeKind.Local)
+ {
+ InvalidFormatForLocal(format, dateTime);
+ }
+ dtfi = DateTimeFormatInfo.InvariantInfo;
+ break;
+ case 's': // Sortable without Time Zone Info
+ dtfi = DateTimeFormatInfo.InvariantInfo;
+ break;
+ case 'u': // Universal time in sortable format.
+ if (offset != NullOffset)
+ {
+ // Convert to UTC invariants mean this will be in range
+ dateTime = dateTime - offset;
+ }
+ else if (dateTime.Kind == DateTimeKind.Local)
+ {
+ InvalidFormatForLocal(format, dateTime);
+ }
+ dtfi = DateTimeFormatInfo.InvariantInfo;
+ break;
+ case 'U': // Universal time in culture dependent format.
+ if (offset != NullOffset)
+ {
+ // This format is not supported by DateTimeOffset
+ throw new FormatException(SR.Format_InvalidString);
+ }
+ // Universal time is always in Greogrian calendar.
+ //
+ // Change the Calendar to be Gregorian Calendar.
+ //
+ dtfi = (DateTimeFormatInfo)dtfi.Clone();
+ if (dtfi.Calendar.GetType() != typeof(GregorianCalendar))
+ {
+ dtfi.Calendar = GregorianCalendar.GetDefaultInstance();
+ }
+ dateTime = dateTime.ToUniversalTime();
+ break;
+ }
+ format = GetRealFormat(format, dtfi);
+ return (format);
+ }
+
+ internal static String Format(DateTime dateTime, String format, DateTimeFormatInfo dtfi)
+ {
+ return Format(dateTime, format, dtfi, NullOffset);
+ }
+
+
+ internal static String Format(DateTime dateTime, String format, DateTimeFormatInfo dtfi, TimeSpan offset)
+ {
+ Contract.Requires(dtfi != null);
+ if (format == null || format.Length == 0)
+ {
+ Boolean timeOnlySpecialCase = false;
+ if (dateTime.Ticks < Calendar.TicksPerDay)
+ {
+ // If the time is less than 1 day, consider it as time of day.
+ // Just print out the short time format.
+ //
+ // This is a workaround for VB, since they use ticks less then one day to be
+ // time of day. In cultures which use calendar other than Gregorian calendar, these
+ // alternative calendar may not support ticks less than a day.
+ // For example, Japanese calendar only supports date after 1868/9/8.
+ // This will pose a problem when people in VB get the time of day, and use it
+ // to call ToString(), which will use the general format (short date + long time).
+ // Since Japanese calendar does not support Gregorian year 0001, an exception will be
+ // thrown when we try to get the Japanese year for Gregorian year 0001.
+ // Therefore, the workaround allows them to call ToString() for time of day from a DateTime by
+ // formatting as ISO 8601 format.
+ switch (dtfi.Calendar.ID)
+ {
+ case CalendarId.JAPAN:
+ case CalendarId.TAIWAN:
+ case CalendarId.HIJRI:
+ case CalendarId.HEBREW:
+ case CalendarId.JULIAN:
+ case CalendarId.UMALQURA:
+ case CalendarId.PERSIAN:
+ timeOnlySpecialCase = true;
+ dtfi = DateTimeFormatInfo.InvariantInfo;
+ break;
+ }
+ }
+ if (offset == NullOffset)
+ {
+ // Default DateTime.ToString case.
+ if (timeOnlySpecialCase)
+ {
+ format = "s";
+ }
+ else
+ {
+ format = "G";
+ }
+ }
+ else
+ {
+ // Default DateTimeOffset.ToString case.
+ if (timeOnlySpecialCase)
+ {
+ format = RoundtripDateTimeUnfixed;
+ }
+ else
+ {
+ format = dtfi.DateTimeOffsetPattern;
+ }
+ }
+ }
+
+ if (format.Length == 1)
+ {
+ switch (format[0])
+ {
+ case 'O':
+ case 'o':
+ return FastFormatRoundtrip(dateTime, offset);
+ case 'R':
+ case 'r':
+ return FastFormatRfc1123(dateTime, offset, dtfi);
+ }
+
+ format = ExpandPredefinedFormat(format, ref dateTime, ref dtfi, ref offset);
+ }
+
+ return (FormatCustomized(dateTime, format, dtfi, offset));
+ }
+
+ internal static string FastFormatRfc1123(DateTime dateTime, TimeSpan offset, DateTimeFormatInfo dtfi)
+ {
+ // ddd, dd MMM yyyy HH:mm:ss GMT
+ const int Rfc1123FormatLength = 29;
+ StringBuilder result = StringBuilderCache.Acquire(Rfc1123FormatLength);
+
+ if (offset != NullOffset)
+ {
+ // Convert to UTC invariants
+ dateTime = dateTime - offset;
+ }
+
+ result.Append(InvariantAbbreviatedDayNames[(int)dateTime.DayOfWeek]);
+ result.Append(',');
+ result.Append(' ');
+ AppendNumber(result, dateTime.Day, 2);
+ result.Append(' ');
+ result.Append(InvariantAbbreviatedMonthNames[dateTime.Month - 1]);
+ result.Append(' ');
+ AppendNumber(result, dateTime.Year, 4);
+ result.Append(' ');
+ AppendHHmmssTimeOfDay(result, dateTime);
+ result.Append(' ');
+ result.Append(Gmt);
+
+ return StringBuilderCache.GetStringAndRelease(result);
+ }
+
+ internal static string FastFormatRoundtrip(DateTime dateTime, TimeSpan offset)
+ {
+ // yyyy-MM-ddTHH:mm:ss.fffffffK
+ const int roundTripFormatLength = 28;
+ StringBuilder result = StringBuilderCache.Acquire(roundTripFormatLength);
+
+ AppendNumber(result, dateTime.Year, 4);
+ result.Append('-');
+ AppendNumber(result, dateTime.Month, 2);
+ result.Append('-');
+ AppendNumber(result, dateTime.Day, 2);
+ result.Append('T');
+ AppendHHmmssTimeOfDay(result, dateTime);
+ result.Append('.');
+
+ long fraction = dateTime.Ticks % TimeSpan.TicksPerSecond;
+ AppendNumber(result, fraction, 7);
+
+ FormatCustomizedRoundripTimeZone(dateTime, offset, result);
+
+ return StringBuilderCache.GetStringAndRelease(result);
+ }
+
+ private static void AppendHHmmssTimeOfDay(StringBuilder result, DateTime dateTime)
+ {
+ // HH:mm:ss
+ AppendNumber(result, dateTime.Hour, 2);
+ result.Append(':');
+ AppendNumber(result, dateTime.Minute, 2);
+ result.Append(':');
+ AppendNumber(result, dateTime.Second, 2);
+ }
+
+ internal static void AppendNumber(StringBuilder builder, long val, int digits)
+ {
+ for (int i = 0; i < digits; i++)
+ {
+ builder.Append('0');
+ }
+
+ int index = 1;
+ while (val > 0 && index <= digits)
+ {
+ builder[builder.Length - index] = (char)('0' + (val % 10));
+ val = val / 10;
+ index++;
+ }
+
+ Debug.Assert(val == 0, "DateTimeFormat.AppendNumber(): digits less than size of val");
+ }
+
+ internal static String[] GetAllDateTimes(DateTime dateTime, char format, DateTimeFormatInfo dtfi)
+ {
+ Contract.Requires(dtfi != null);
+ String[] allFormats = null;
+ String[] results = null;
+
+ switch (format)
+ {
+ case 'd':
+ case 'D':
+ case 'f':
+ case 'F':
+ case 'g':
+ case 'G':
+ case 'm':
+ case 'M':
+ case 't':
+ case 'T':
+ case 'y':
+ case 'Y':
+ allFormats = dtfi.GetAllDateTimePatterns(format);
+ results = new String[allFormats.Length];
+ for (int i = 0; i < allFormats.Length; i++)
+ {
+ results[i] = Format(dateTime, allFormats[i], dtfi);
+ }
+ break;
+ case 'U':
+ DateTime universalTime = dateTime.ToUniversalTime();
+ allFormats = dtfi.GetAllDateTimePatterns(format);
+ results = new String[allFormats.Length];
+ for (int i = 0; i < allFormats.Length; i++)
+ {
+ results[i] = Format(universalTime, allFormats[i], dtfi);
+ }
+ break;
+ //
+ // The following ones are special cases because these patterns are read-only in
+ // DateTimeFormatInfo.
+ //
+ case 'r':
+ case 'R':
+ case 'o':
+ case 'O':
+ case 's':
+ case 'u':
+ results = new String[] { Format(dateTime, new String(format, 1), dtfi) };
+ break;
+ default:
+ throw new FormatException(SR.Format_InvalidString);
+ }
+ return (results);
+ }
+
+ internal static String[] GetAllDateTimes(DateTime dateTime, DateTimeFormatInfo dtfi)
+ {
+ List<String> results = new List<String>(DEFAULT_ALL_DATETIMES_SIZE);
+
+ for (int i = 0; i < allStandardFormats.Length; i++)
+ {
+ String[] strings = GetAllDateTimes(dateTime, allStandardFormats[i], dtfi);
+ for (int j = 0; j < strings.Length; j++)
+ {
+ results.Add(strings[j]);
+ }
+ }
+ String[] value = new String[results.Count];
+ results.CopyTo(0, value, 0, results.Count);
+ return (value);
+ }
+
+ // This is a placeholder for an MDA to detect when the user is using a
+ // local DateTime with a format that will be interpreted as UTC.
+ internal static void InvalidFormatForLocal(String format, DateTime dateTime)
+ {
+ }
+ }
+}
--- /dev/null
+// 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.Collections.Generic;
+using System.Diagnostics;
+using System.Diagnostics.Contracts;
+using System.Runtime.Serialization;
+
+namespace System.Globalization
+{
+ //
+ // Flags used to indicate different styles of month names.
+ // This is an internal flag used by internalGetMonthName().
+ // Use flag here in case that we need to provide a combination of these styles
+ // (such as month name of a leap year in genitive form. Not likely for now,
+ // but would like to keep the option open).
+ //
+
+ [Flags]
+ internal enum MonthNameStyles
+ {
+ Regular = 0x00000000,
+ Genitive = 0x00000001,
+ LeapYear = 0x00000002,
+ }
+
+ //
+ // Flags used to indicate special rule used in parsing/formatting
+ // for a specific DateTimeFormatInfo instance.
+ // This is an internal flag.
+ //
+ // This flag is different from MonthNameStyles because this flag
+ // can be expanded to accomodate parsing behaviors like CJK month names
+ // or alternative month names, etc.
+
+ [Flags]
+ internal enum DateTimeFormatFlags
+ {
+ None = 0x00000000,
+ UseGenitiveMonth = 0x00000001,
+ UseLeapYearMonth = 0x00000002,
+ UseSpacesInMonthNames = 0x00000004, // Has spaces or non-breaking space in the month names.
+ UseHebrewRule = 0x00000008, // Format/Parse using the Hebrew calendar rule.
+ UseSpacesInDayNames = 0x00000010, // Has spaces or non-breaking space in the day names.
+ UseDigitPrefixInTokens = 0x00000020, // Has token starting with numbers.
+
+ NotInitialized = -1,
+ }
+
+
+ [Serializable]
+ public sealed class DateTimeFormatInfo : IFormatProvider, ICloneable
+ {
+ // cache for the invariant culture.
+ // invariantInfo is constant irrespective of your current culture.
+ private static volatile DateTimeFormatInfo s_invariantInfo;
+
+ // an index which points to a record in Culture Data Table.
+ [NonSerialized]
+ private CultureData _cultureData;
+
+ // The culture name used to create this DTFI.
+
+ [OptionalField(VersionAdded = 2)]
+ private String _name = null;
+
+ // The language name of the culture used to create this DTFI.
+ [NonSerialized]
+ private String _langName = null;
+
+ // CompareInfo usually used by the parser.
+ [NonSerialized]
+ private CompareInfo _compareInfo = null;
+
+ // Culture matches current DTFI. mainly used for string comparisons during parsing.
+ [NonSerialized]
+ private CultureInfo _cultureInfo = null;
+
+ //
+ // Caches for various properties.
+ //
+
+ private String amDesignator = null;
+ private String pmDesignator = null;
+
+ private String dateSeparator = null; // derived from short date (whidbey expects, arrowhead doesn't)
+
+ private String generalShortTimePattern = null; // short date + short time (whidbey expects, arrowhead doesn't)
+
+ private String generalLongTimePattern = null; // short date + long time (whidbey expects, arrowhead doesn't)
+
+ private String timeSeparator = null; // derived from long time (whidbey expects, arrowhead doesn't)
+ private String monthDayPattern = null;
+ // added in .NET Framework Release {2.0SP1/3.0SP1/3.5RTM}
+ private String dateTimeOffsetPattern = null;
+
+ //
+ // The following are constant values.
+ //
+ private const String rfc1123Pattern = "ddd, dd MMM yyyy HH':'mm':'ss 'GMT'";
+
+ // The sortable pattern is based on ISO 8601.
+ private const String sortableDateTimePattern = "yyyy'-'MM'-'dd'T'HH':'mm':'ss";
+ private const String universalSortableDateTimePattern = "yyyy'-'MM'-'dd HH':'mm':'ss'Z'";
+
+ //
+ // The following are affected by calendar settings.
+ //
+ private Calendar calendar = null;
+
+ private int firstDayOfWeek = -1;
+ private int calendarWeekRule = -1;
+
+
+ private String fullDateTimePattern = null; // long date + long time (whidbey expects, arrowhead doesn't)
+
+ private String[] abbreviatedDayNames = null;
+
+
+ private String[] m_superShortDayNames = null;
+
+ private String[] dayNames = null;
+ private String[] abbreviatedMonthNames = null;
+ private String[] monthNames = null;
+ // Cache the genitive month names that we retrieve from the data table.
+
+ private String[] genitiveMonthNames = null;
+
+ // Cache the abbreviated genitive month names that we retrieve from the data table.
+
+ private String[] m_genitiveAbbreviatedMonthNames = null;
+
+ // Cache the month names of a leap year that we retrieve from the data table.
+
+ private String[] leapYearMonthNames = null;
+
+ // For our "patterns" arrays we have 2 variables, a string and a string[]
+ //
+ // The string[] contains the list of patterns, EXCEPT the default may not be included.
+ // The string contains the default pattern.
+ // When we initially construct our string[], we set the string to string[0]
+
+ // The "default" Date/time patterns
+ private String longDatePattern = null;
+ private String shortDatePattern = null;
+ private String yearMonthPattern = null;
+ private String longTimePattern = null;
+ private String shortTimePattern = null;
+
+ [OptionalField(VersionAdded = 3)]
+ private String[] allYearMonthPatterns = null;
+
+ private String[] allShortDatePatterns = null;
+ private String[] allLongDatePatterns = null;
+ private String[] allShortTimePatterns = null;
+ private String[] allLongTimePatterns = null;
+
+ // Cache the era names for this DateTimeFormatInfo instance.
+ private String[] m_eraNames = null;
+ private String[] m_abbrevEraNames = null;
+ private String[] m_abbrevEnglishEraNames = null;
+
+ private CalendarId[] optionalCalendars = null;
+
+ private const int DEFAULT_ALL_DATETIMES_SIZE = 132;
+
+ // CultureInfo updates this
+ internal bool _isReadOnly = false;
+
+ // This flag gives hints about if formatting/parsing should perform special code path for things like
+ // genitive form or leap year month names.
+
+ private DateTimeFormatFlags formatFlags = DateTimeFormatFlags.NotInitialized;
+
+ private String CultureName
+ {
+ get
+ {
+ if (_name == null)
+ {
+ _name = _cultureData.CultureName;
+ }
+ return (_name);
+ }
+ }
+
+ private CultureInfo Culture
+ {
+ get
+ {
+ if (_cultureInfo == null)
+ {
+ _cultureInfo = CultureInfo.GetCultureInfo(this.CultureName);
+ }
+ return _cultureInfo;
+ }
+ }
+
+ // TODO: This ignores other cultures that might want to do something similar
+ private String LanguageName
+ {
+ get
+ {
+ if (_langName == null)
+ {
+ _langName = _cultureData.SISO639LANGNAME;
+ }
+ return (_langName);
+ }
+ }
+
+ ////////////////////////////////////////////////////////////////////////////
+ //
+ // Create an array of string which contains the abbreviated day names.
+ //
+ ////////////////////////////////////////////////////////////////////////////
+
+ private String[] internalGetAbbreviatedDayOfWeekNames()
+ {
+ if (this.abbreviatedDayNames == null)
+ {
+ // Get the abbreviated day names for our current calendar
+ this.abbreviatedDayNames = _cultureData.AbbreviatedDayNames(Calendar.ID);
+ Debug.Assert(this.abbreviatedDayNames.Length == 7, "[DateTimeFormatInfo.GetAbbreviatedDayOfWeekNames] Expected 7 day names in a week");
+ }
+ return (this.abbreviatedDayNames);
+ }
+
+
+ ////////////////////////////////////////////////////////////////////////
+ //
+ // Action: Returns the string array of the one-letter day of week names.
+ // Returns:
+ // an array of one-letter day of week names
+ // Arguments:
+ // None
+ // Exceptions:
+ // None
+ //
+ ////////////////////////////////////////////////////////////////////////
+
+ private String[] internalGetSuperShortDayNames()
+ {
+ if (this.m_superShortDayNames == null)
+ {
+ // Get the super short day names for our current calendar
+ this.m_superShortDayNames = _cultureData.SuperShortDayNames(Calendar.ID);
+ Debug.Assert(this.m_superShortDayNames.Length == 7, "[DateTimeFormatInfo.internalGetSuperShortDayNames] Expected 7 day names in a week");
+ }
+ return (this.m_superShortDayNames);
+ }
+
+ ////////////////////////////////////////////////////////////////////////////
+ //
+ // Create an array of string which contains the day names.
+ //
+ ////////////////////////////////////////////////////////////////////////////
+
+ private String[] internalGetDayOfWeekNames()
+ {
+ if (this.dayNames == null)
+ {
+ // Get the day names for our current calendar
+ this.dayNames = _cultureData.DayNames(Calendar.ID);
+ Debug.Assert(this.dayNames.Length == 7, "[DateTimeFormatInfo.GetDayOfWeekNames] Expected 7 day names in a week");
+ }
+ return (this.dayNames);
+ }
+
+ ////////////////////////////////////////////////////////////////////////////
+ //
+ // Create an array of string which contains the abbreviated month names.
+ //
+ ////////////////////////////////////////////////////////////////////////////
+
+ private String[] internalGetAbbreviatedMonthNames()
+ {
+ if (this.abbreviatedMonthNames == null)
+ {
+ // Get the month names for our current calendar
+ this.abbreviatedMonthNames = _cultureData.AbbreviatedMonthNames(Calendar.ID);
+ Debug.Assert(this.abbreviatedMonthNames.Length == 12 || this.abbreviatedMonthNames.Length == 13,
+ "[DateTimeFormatInfo.GetAbbreviatedMonthNames] Expected 12 or 13 month names in a year");
+ }
+ return (this.abbreviatedMonthNames);
+ }
+
+
+ ////////////////////////////////////////////////////////////////////////////
+ //
+ // Create an array of string which contains the month names.
+ //
+ ////////////////////////////////////////////////////////////////////////////
+
+ private String[] internalGetMonthNames()
+ {
+ if (this.monthNames == null)
+ {
+ // Get the month names for our current calendar
+ this.monthNames = _cultureData.MonthNames(Calendar.ID);
+ Debug.Assert(this.monthNames.Length == 12 || this.monthNames.Length == 13,
+ "[DateTimeFormatInfo.GetMonthNames] Expected 12 or 13 month names in a year");
+ }
+
+ return (this.monthNames);
+ }
+
+
+ //
+ // Invariant DateTimeFormatInfo doesn't have user-overriden values
+ // Default calendar is gregorian
+ public DateTimeFormatInfo()
+ : this(CultureInfo.InvariantCulture.m_cultureData, GregorianCalendar.GetDefaultInstance())
+ {
+ }
+
+ internal DateTimeFormatInfo(CultureData cultureData, Calendar cal)
+ {
+ Debug.Assert(cultureData != null);
+ Debug.Assert(cal != null);
+
+ // Remember our culture
+ _cultureData = cultureData;
+
+ this.Calendar = cal;
+ }
+
+ private void InitializeOverridableProperties(CultureData cultureData, CalendarId calendarId)
+ {
+ Debug.Assert(cultureData != null);
+ Debug.Assert(calendarId != CalendarId.UNINITIALIZED_VALUE, "[DateTimeFormatInfo.Populate] Expected initalized calendarId");
+
+ if (this.firstDayOfWeek == -1) { this.firstDayOfWeek = cultureData.IFIRSTDAYOFWEEK; }
+ if (this.calendarWeekRule == -1) { this.calendarWeekRule = cultureData.IFIRSTWEEKOFYEAR; }
+
+ if (this.amDesignator == null) { this.amDesignator = cultureData.SAM1159; }
+ if (this.pmDesignator == null) { this.pmDesignator = cultureData.SPM2359; }
+ if (this.timeSeparator == null) { this.timeSeparator = cultureData.TimeSeparator; }
+ if (this.dateSeparator == null) { this.dateSeparator = cultureData.DateSeparator(calendarId); }
+
+ this.allLongTimePatterns = _cultureData.LongTimes;
+ Debug.Assert(this.allLongTimePatterns.Length > 0, "[DateTimeFormatInfo.Populate] Expected some long time patterns");
+
+ this.allShortTimePatterns = _cultureData.ShortTimes;
+ Debug.Assert(this.allShortTimePatterns.Length > 0, "[DateTimeFormatInfo.Populate] Expected some short time patterns");
+
+ this.allLongDatePatterns = cultureData.LongDates(calendarId);
+ Debug.Assert(this.allLongDatePatterns.Length > 0, "[DateTimeFormatInfo.Populate] Expected some long date patterns");
+
+ this.allShortDatePatterns = cultureData.ShortDates(calendarId);
+ Debug.Assert(this.allShortDatePatterns.Length > 0, "[DateTimeFormatInfo.Populate] Expected some short date patterns");
+
+ this.allYearMonthPatterns = cultureData.YearMonths(calendarId);
+ Debug.Assert(this.allYearMonthPatterns.Length > 0, "[DateTimeFormatInfo.Populate] Expected some year month patterns");
+ }
+
+ [OptionalField(VersionAdded = 1)]
+ private bool _useUserOverride;
+
+ // This was synthesized by Whidbey so we knew what words might appear in the middle of a date string
+ // Now we always synthesize so its not helpful
+
+ internal String[] m_dateWords = null;
+
+ [OnSerializing]
+ private void OnSerializing(StreamingContext ctx)
+ {
+ _name = this.CultureName; // make sure the _name is initialized.
+ _useUserOverride = _cultureData.UseUserOverride;
+
+ // Important to initialize these fields otherwise we may run into exception when deserializing on Whidbey
+ // because Whidbey try to initialize some of these fields using calendar data which could be null values
+ // and then we get exceptions. So we call the accessors to force the caches to get loaded.
+ Object o;
+ o = this.LongTimePattern;
+ o = this.LongDatePattern;
+ o = this.ShortTimePattern;
+ o = this.ShortDatePattern;
+ o = this.YearMonthPattern;
+ o = this.AllLongTimePatterns;
+ o = this.AllLongDatePatterns;
+ o = this.AllShortTimePatterns;
+ o = this.AllShortDatePatterns;
+ o = this.AllYearMonthPatterns;
+ }
+
+ [OnDeserialized]
+ private void OnDeserialized(StreamingContext ctx)
+ {
+ if (_name != null)
+ {
+ _cultureData = CultureData.GetCultureData(_name, _useUserOverride);
+ if (_cultureData == null)
+ {
+ throw new CultureNotFoundException("_name", _name, SR.Argument_CultureNotSupported);
+ }
+ }
+
+ if (calendar == null)
+ {
+ calendar = (Calendar)GregorianCalendar.GetDefaultInstance().Clone();
+ calendar.SetReadOnlyState(_isReadOnly);
+ }
+
+ InitializeOverridableProperties(_cultureData, calendar.ID);
+
+ //
+ // turn off read only state till we finish initializing all fields and then store read only state after we are done.
+ //
+ bool isReadOnly = _isReadOnly;
+ _isReadOnly = false;
+
+ // If we deserialized defaults ala Whidbey, make sure they're still defaults
+ // Whidbey's arrays could get a bit mixed up.
+ if (longDatePattern != null) this.LongDatePattern = longDatePattern;
+ if (shortDatePattern != null) this.ShortDatePattern = shortDatePattern;
+ if (yearMonthPattern != null) this.YearMonthPattern = yearMonthPattern;
+ if (longTimePattern != null) this.LongTimePattern = longTimePattern;
+ if (shortTimePattern != null) this.ShortTimePattern = shortTimePattern;
+
+ _isReadOnly = isReadOnly;
+ }
+
+ // Returns a default DateTimeFormatInfo that will be universally
+ // supported and constant irrespective of the current culture.
+ // Used by FromString methods.
+ //
+
+ public static DateTimeFormatInfo InvariantInfo
+ {
+ get
+ {
+ Contract.Ensures(Contract.Result<DateTimeFormatInfo>() != null);
+ if (s_invariantInfo == null)
+ {
+ DateTimeFormatInfo info = new DateTimeFormatInfo();
+ info.Calendar.SetReadOnlyState(true);
+ info._isReadOnly = true;
+ s_invariantInfo = info;
+ }
+ return (s_invariantInfo);
+ }
+ }
+
+ // Returns the current culture's DateTimeFormatInfo. Used by Parse methods.
+ //
+
+ public static DateTimeFormatInfo CurrentInfo
+ {
+ get
+ {
+ Contract.Ensures(Contract.Result<DateTimeFormatInfo>() != null);
+ System.Globalization.CultureInfo culture = System.Globalization.CultureInfo.CurrentCulture;
+ if (!culture.m_isInherited)
+ {
+ DateTimeFormatInfo info = culture.dateTimeInfo;
+ if (info != null)
+ {
+ return info;
+ }
+ }
+ return (DateTimeFormatInfo)culture.GetFormat(typeof(DateTimeFormatInfo));
+ }
+ }
+
+
+ public static DateTimeFormatInfo GetInstance(IFormatProvider provider)
+ {
+ // Fast case for a regular CultureInfo
+ DateTimeFormatInfo info;
+ CultureInfo cultureProvider = provider as CultureInfo;
+ if (cultureProvider != null && !cultureProvider.m_isInherited)
+ {
+ return cultureProvider.DateTimeFormat;
+ }
+ // Fast case for a DTFI;
+ info = provider as DateTimeFormatInfo;
+ if (info != null)
+ {
+ return info;
+ }
+ // Wasn't cultureInfo or DTFI, do it the slower way
+ if (provider != null)
+ {
+ info = provider.GetFormat(typeof(DateTimeFormatInfo)) as DateTimeFormatInfo;
+ if (info != null)
+ {
+ return info;
+ }
+ }
+ // Couldn't get anything, just use currentInfo as fallback
+ return CurrentInfo;
+ }
+
+
+ public Object GetFormat(Type formatType)
+ {
+ return (formatType == typeof(DateTimeFormatInfo) ? this : null);
+ }
+
+
+ public Object Clone()
+ {
+ DateTimeFormatInfo n = (DateTimeFormatInfo)MemberwiseClone();
+ // We can use the data member calendar in the setter, instead of the property Calendar,
+ // since the cloned copy should have the same state as the original copy.
+ n.calendar = (Calendar)this.Calendar.Clone();
+ n._isReadOnly = false;
+ return n;
+ }
+
+
+ public String AMDesignator
+ {
+ get
+ {
+ if (this.amDesignator == null)
+ {
+ this.amDesignator = _cultureData.SAM1159;
+ }
+ Debug.Assert(this.amDesignator != null, "DateTimeFormatInfo.AMDesignator, amDesignator != null");
+ return (this.amDesignator);
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_String);
+ }
+ Contract.EndContractBlock();
+ ClearTokenHashTable();
+ amDesignator = value;
+ }
+ }
+
+
+ public Calendar Calendar
+ {
+ get
+ {
+ Contract.Ensures(Contract.Result<Calendar>() != null);
+
+ Debug.Assert(this.calendar != null, "DateTimeFormatInfo.Calendar: calendar != null");
+ return (this.calendar);
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value), SR.ArgumentNull_Obj);
+ }
+ Contract.EndContractBlock();
+ if (value == calendar)
+ {
+ return;
+ }
+
+ for (int i = 0; i < this.OptionalCalendars.Length; i++)
+ {
+ if (this.OptionalCalendars[i] == value.ID)
+ {
+ // We can use this one, so do so.
+
+ // Clean related properties if we already had a calendar set
+ if (calendar != null)
+ {
+ // clean related properties which are affected by the calendar setting,
+ // so that they will be refreshed when they are accessed next time.
+ //
+
+ // These properites are in the order as appearing in calendar.xml.
+ m_eraNames = null;
+ m_abbrevEraNames = null;
+ m_abbrevEnglishEraNames = null;
+
+ monthDayPattern = null;
+
+ dayNames = null;
+ abbreviatedDayNames = null;
+ m_superShortDayNames = null;
+ monthNames = null;
+ abbreviatedMonthNames = null;
+ genitiveMonthNames = null;
+ m_genitiveAbbreviatedMonthNames = null;
+ leapYearMonthNames = null;
+ formatFlags = DateTimeFormatFlags.NotInitialized;
+
+ allShortDatePatterns = null;
+ allLongDatePatterns = null;
+ allYearMonthPatterns = null;
+ dateTimeOffsetPattern = null;
+
+ // The defaults need reset as well:
+ longDatePattern = null;
+ shortDatePattern = null;
+ yearMonthPattern = null;
+
+ // These properies are not in the OS data, but they are dependent on the values like shortDatePattern.
+ fullDateTimePattern = null; // Long date + long time
+ generalShortTimePattern = null; // short date + short time
+ generalLongTimePattern = null; // short date + long time
+
+ // Derived item that changes
+ dateSeparator = null;
+
+ // We don't need to do these because they are not changed by changing calendar
+ // amDesignator
+ // pmDesignator
+ // timeSeparator
+ // longTimePattern
+ // firstDayOfWeek
+ // calendarWeekRule
+
+ // remember to reload tokens
+ ClearTokenHashTable();
+ }
+
+ // Remember the new calendar
+ calendar = value;
+ InitializeOverridableProperties(_cultureData, calendar.ID);
+
+ // We succeeded, return
+ return;
+ }
+ }
+
+ // The assigned calendar is not a valid calendar for this culture, throw
+ throw new ArgumentOutOfRangeException(nameof(value), SR.Argument_InvalidCalendar);
+ }
+ }
+
+ private CalendarId[] OptionalCalendars
+ {
+ get
+ {
+ if (this.optionalCalendars == null)
+ {
+ this.optionalCalendars = _cultureData.CalendarIds;
+ }
+ return (this.optionalCalendars);
+ }
+ }
+
+ /*=================================GetEra==========================
+ **Action: Get the era value by parsing the name of the era.
+ **Returns: The era value for the specified era name.
+ ** -1 if the name of the era is not valid or not supported.
+ **Arguments: eraName the name of the era.
+ **Exceptions: None.
+ ============================================================================*/
+
+
+ public int GetEra(String eraName)
+ {
+ if (eraName == null)
+ {
+ throw new ArgumentNullException(nameof(eraName),
+ SR.ArgumentNull_String);
+ }
+ Contract.EndContractBlock();
+
+ // The Era Name and Abbreviated Era Name
+ // for Taiwan Calendar on non-Taiwan SKU returns empty string (which
+ // would be matched below) but we don't want the empty string to give
+ // us an Era number
+ // confer 85900 DTFI.GetEra("") should fail on all cultures
+ if (eraName.Length == 0)
+ {
+ return (-1);
+ }
+
+ // The following is based on the assumption that the era value is starting from 1, and has a
+ // serial values.
+ // If that ever changes, the code has to be changed.
+
+ // The calls to String.Compare should use the current culture for the string comparisons, but the
+ // invariant culture when comparing against the english names.
+ for (int i = 0; i < EraNames.Length; i++)
+ {
+ // Compare the era name in a case-insensitive way for the appropriate culture.
+ if (m_eraNames[i].Length > 0)
+ {
+ if (this.Culture.CompareInfo.Compare(eraName, m_eraNames[i], CompareOptions.IgnoreCase) == 0)
+ {
+ return (i + 1);
+ }
+ }
+ }
+ for (int i = 0; i < AbbreviatedEraNames.Length; i++)
+ {
+ // Compare the abbreviated era name in a case-insensitive way for the appropriate culture.
+ if (this.Culture.CompareInfo.Compare(eraName, m_abbrevEraNames[i], CompareOptions.IgnoreCase) == 0)
+ {
+ return (i + 1);
+ }
+ }
+ for (int i = 0; i < AbbreviatedEnglishEraNames.Length; i++)
+ {
+ // this comparison should use the InvariantCulture. The English name could have linguistically
+ // interesting characters.
+ if (CultureInfo.InvariantCulture.CompareInfo.Compare(eraName, m_abbrevEnglishEraNames[i], CompareOptions.IgnoreCase) == 0)
+ {
+ return (i + 1);
+ }
+ }
+ return (-1);
+ }
+
+
+ internal String[] EraNames
+ {
+ get
+ {
+ if (this.m_eraNames == null)
+ {
+ this.m_eraNames = _cultureData.EraNames(Calendar.ID); ;
+ }
+ return (this.m_eraNames);
+ }
+ }
+
+ /*=================================GetEraName==========================
+ **Action: Get the name of the era for the specified era value.
+ **Returns: The name of the specified era.
+ **Arguments:
+ ** era the era value.
+ **Exceptions:
+ ** ArguementException if the era valie is invalid.
+ ============================================================================*/
+
+ // Era names are 1 indexed
+ public String GetEraName(int era)
+ {
+ if (era == Calendar.CurrentEra)
+ {
+ era = Calendar.CurrentEraValue;
+ }
+
+ // The following is based on the assumption that the era value is starting from 1, and has a
+ // serial values.
+ // If that ever changes, the code has to be changed.
+ if ((--era) < EraNames.Length && (era >= 0))
+ {
+ return (m_eraNames[era]);
+ }
+ throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue);
+ }
+
+ internal String[] AbbreviatedEraNames
+ {
+ get
+ {
+ if (this.m_abbrevEraNames == null)
+ {
+ this.m_abbrevEraNames = _cultureData.AbbrevEraNames(Calendar.ID);
+ }
+ return (this.m_abbrevEraNames);
+ }
+ }
+
+ // Era names are 1 indexed
+ public String GetAbbreviatedEraName(int era)
+ {
+ if (AbbreviatedEraNames.Length == 0)
+ {
+ // If abbreviation era name is not used in this culture,
+ // return the full era name.
+ return (GetEraName(era));
+ }
+ if (era == Calendar.CurrentEra)
+ {
+ era = Calendar.CurrentEraValue;
+ }
+ if ((--era) < m_abbrevEraNames.Length && (era >= 0))
+ {
+ return (m_abbrevEraNames[era]);
+ }
+ throw new ArgumentOutOfRangeException(nameof(era), SR.ArgumentOutOfRange_InvalidEraValue);
+ }
+
+ internal String[] AbbreviatedEnglishEraNames
+ {
+ get
+ {
+ if (this.m_abbrevEnglishEraNames == null)
+ {
+ Debug.Assert(Calendar.ID > 0, "[DateTimeFormatInfo.AbbreviatedEnglishEraNames] Expected Calendar.ID > 0");
+ this.m_abbrevEnglishEraNames = _cultureData.AbbreviatedEnglishEraNames(Calendar.ID);
+ }
+ return (this.m_abbrevEnglishEraNames);
+ }
+ }
+
+ // Note that cultureData derives this from the short date format (unless someone's set this previously)
+ // Note that this property is quite undesirable.
+ public string DateSeparator
+ {
+ get
+ {
+ if (dateSeparator == null)
+ {
+ dateSeparator = _cultureData.DateSeparator(Calendar.ID);
+ }
+ Debug.Assert(this.dateSeparator != null, "DateTimeFormatInfo.DateSeparator, dateSeparator != null");
+ return dateSeparator;
+ }
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value), SR.ArgumentNull_String);
+ }
+ Contract.EndContractBlock();
+ ClearTokenHashTable();
+ dateSeparator = value;
+ }
+ }
+
+ public DayOfWeek FirstDayOfWeek
+ {
+ get
+ {
+ if (this.firstDayOfWeek == -1)
+ {
+ this.firstDayOfWeek = _cultureData.IFIRSTDAYOFWEEK;
+ }
+ Debug.Assert(this.firstDayOfWeek != -1, "DateTimeFormatInfo.FirstDayOfWeek, firstDayOfWeek != -1");
+
+ return ((DayOfWeek)this.firstDayOfWeek);
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value >= DayOfWeek.Sunday && value <= DayOfWeek.Saturday)
+ {
+ firstDayOfWeek = (int)value;
+ }
+ else
+ {
+ throw new ArgumentOutOfRangeException(
+ nameof(value), SR.Format(SR.ArgumentOutOfRange_Range,
+ DayOfWeek.Sunday, DayOfWeek.Saturday));
+ }
+ }
+ }
+
+ public CalendarWeekRule CalendarWeekRule
+ {
+ get
+ {
+ if (this.calendarWeekRule == -1)
+ {
+ this.calendarWeekRule = _cultureData.IFIRSTWEEKOFYEAR;
+ }
+ Debug.Assert(this.calendarWeekRule != -1, "DateTimeFormatInfo.CalendarWeekRule, calendarWeekRule != -1");
+ return ((CalendarWeekRule)this.calendarWeekRule);
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value >= CalendarWeekRule.FirstDay && value <= CalendarWeekRule.FirstFourDayWeek)
+ {
+ calendarWeekRule = (int)value;
+ }
+ else
+ {
+ throw new ArgumentOutOfRangeException(
+ nameof(value), SR.Format(SR.ArgumentOutOfRange_Range,
+ CalendarWeekRule.FirstDay, CalendarWeekRule.FirstFourDayWeek));
+ }
+ }
+ }
+
+ public String FullDateTimePattern
+ {
+ get
+ {
+ if (fullDateTimePattern == null)
+ {
+ fullDateTimePattern = LongDatePattern + " " + LongTimePattern;
+ }
+ return (fullDateTimePattern);
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_String);
+ }
+ Contract.EndContractBlock();
+ fullDateTimePattern = value;
+ }
+ }
+
+
+ // For our "patterns" arrays we have 2 variables, a string and a string[]
+ //
+ // The string[] contains the list of patterns, EXCEPT the default may not be included.
+ // The string contains the default pattern.
+ // When we initially construct our string[], we set the string to string[0]
+ public String LongDatePattern
+ {
+ get
+ {
+ // Initialize our long date pattern from the 1st array value if not set
+ if (this.longDatePattern == null)
+ {
+ // Initialize our data
+ this.longDatePattern = this.UnclonedLongDatePatterns[0];
+ }
+
+ return this.longDatePattern;
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_String);
+ }
+ Contract.EndContractBlock();
+
+ // Remember the new string
+ this.longDatePattern = value;
+
+ // Clear the token hash table
+ ClearTokenHashTable();
+
+ // Clean up cached values that will be affected by this property.
+ this.fullDateTimePattern = null;
+ }
+ }
+
+ // For our "patterns" arrays we have 2 variables, a string and a string[]
+ //
+ // The string[] contains the list of patterns, EXCEPT the default may not be included.
+ // The string contains the default pattern.
+ // When we initially construct our string[], we set the string to string[0]
+ public String LongTimePattern
+ {
+ get
+ {
+ // Initialize our long time pattern from the 1st array value if not set
+ if (this.longTimePattern == null)
+ {
+ // Initialize our data
+ this.longTimePattern = this.UnclonedLongTimePatterns[0];
+ }
+
+ return this.longTimePattern;
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_String);
+ }
+ Contract.EndContractBlock();
+
+ // Remember the new string
+ this.longTimePattern = value;
+
+ // Clear the token hash table
+ ClearTokenHashTable();
+
+ // Clean up cached values that will be affected by this property.
+ this.fullDateTimePattern = null; // Full date = long date + long Time
+ this.generalLongTimePattern = null; // General long date = short date + long Time
+ this.dateTimeOffsetPattern = null;
+ }
+ }
+
+
+ // Note: just to be confusing there's only 1 month day pattern, not a whole list
+ public String MonthDayPattern
+ {
+ get
+ {
+ if (this.monthDayPattern == null)
+ {
+ Debug.Assert(Calendar.ID > 0, "[DateTimeFormatInfo.MonthDayPattern] Expected calID > 0");
+ this.monthDayPattern = _cultureData.MonthDay(Calendar.ID);
+ }
+ Debug.Assert(this.monthDayPattern != null, "DateTimeFormatInfo.MonthDayPattern, monthDayPattern != null");
+ return (this.monthDayPattern);
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_String);
+ }
+ Contract.EndContractBlock();
+
+ this.monthDayPattern = value;
+ }
+ }
+
+
+ public String PMDesignator
+ {
+ get
+ {
+ if (this.pmDesignator == null)
+ {
+ this.pmDesignator = _cultureData.SPM2359;
+ }
+ Debug.Assert(this.pmDesignator != null, "DateTimeFormatInfo.PMDesignator, pmDesignator != null");
+ return (this.pmDesignator);
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_String);
+ }
+ Contract.EndContractBlock();
+ ClearTokenHashTable();
+
+ pmDesignator = value;
+ }
+ }
+
+
+ public String RFC1123Pattern
+ {
+ get
+ {
+ return (rfc1123Pattern);
+ }
+ }
+
+ // For our "patterns" arrays we have 2 variables, a string and a string[]
+ //
+ // The string[] contains the list of patterns, EXCEPT the default may not be included.
+ // The string contains the default pattern.
+ // When we initially construct our string[], we set the string to string[0]
+ public String ShortDatePattern
+ {
+ get
+ {
+ // Initialize our short date pattern from the 1st array value if not set
+ if (this.shortDatePattern == null)
+ {
+ // Initialize our data
+ this.shortDatePattern = this.UnclonedShortDatePatterns[0];
+ }
+
+ return this.shortDatePattern;
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_String);
+ Contract.EndContractBlock();
+
+ // Remember the new string
+ this.shortDatePattern = value;
+
+ // Clear the token hash table, note that even short dates could require this
+ ClearTokenHashTable();
+
+ // Clean up cached values that will be affected by this property.
+ generalLongTimePattern = null; // General long time = short date + long time
+ generalShortTimePattern = null; // General short time = short date + short Time
+ dateTimeOffsetPattern = null;
+ }
+ }
+
+
+ // For our "patterns" arrays we have 2 variables, a string and a string[]
+ //
+ // The string[] contains the list of patterns, EXCEPT the default may not be included.
+ // The string contains the default pattern.
+ // When we initially construct our string[], we set the string to string[0]
+ public String ShortTimePattern
+ {
+ get
+ {
+ // Initialize our short time pattern from the 1st array value if not set
+ if (this.shortTimePattern == null)
+ {
+ // Initialize our data
+ this.shortTimePattern = this.UnclonedShortTimePatterns[0];
+ }
+ return this.shortTimePattern;
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_String);
+ }
+ Contract.EndContractBlock();
+
+ // Remember the new string
+ this.shortTimePattern = value;
+
+ // Clear the token hash table, note that even short times could require this
+ ClearTokenHashTable();
+
+ // Clean up cached values that will be affected by this property.
+ generalShortTimePattern = null; // General short date = short date + short time.
+ }
+ }
+
+
+ public String SortableDateTimePattern
+ {
+ get
+ {
+ return (sortableDateTimePattern);
+ }
+ }
+
+ /*=================================GeneralShortTimePattern=====================
+ **Property: Return the pattern for 'g' general format: shortDate + short time
+ **Note: This is used by DateTimeFormat.cs to get the pattern for 'g'
+ ** We put this internal property here so that we can avoid doing the
+ ** concatation every time somebody asks for the general format.
+ ==============================================================================*/
+
+ internal String GeneralShortTimePattern
+ {
+ get
+ {
+ if (generalShortTimePattern == null)
+ {
+ generalShortTimePattern = ShortDatePattern + " " + ShortTimePattern;
+ }
+ return (generalShortTimePattern);
+ }
+ }
+
+ /*=================================GeneralLongTimePattern=====================
+ **Property: Return the pattern for 'g' general format: shortDate + Long time
+ **Note: This is used by DateTimeFormat.cs to get the pattern for 'g'
+ ** We put this internal property here so that we can avoid doing the
+ ** concatation every time somebody asks for the general format.
+ ==============================================================================*/
+
+ internal String GeneralLongTimePattern
+ {
+ get
+ {
+ if (generalLongTimePattern == null)
+ {
+ generalLongTimePattern = ShortDatePattern + " " + LongTimePattern;
+ }
+ return (generalLongTimePattern);
+ }
+ }
+
+ /*=================================DateTimeOffsetPattern==========================
+ **Property: Return the default pattern DateTimeOffset : shortDate + long time + time zone offset
+ **Note: This is used by DateTimeFormat.cs to get the pattern for short Date + long time + time zone offset
+ ** We put this internal property here so that we can avoid doing the
+ ** concatation every time somebody uses this form
+ ==============================================================================*/
+
+ /*=================================DateTimeOffsetPattern==========================
+ **Property: Return the default pattern DateTimeOffset : shortDate + long time + time zone offset
+ **Note: This is used by DateTimeFormat.cs to get the pattern for short Date + long time + time zone offset
+ ** We put this internal property here so that we can avoid doing the
+ ** concatation every time somebody uses this form
+ ==============================================================================*/
+
+ internal String DateTimeOffsetPattern
+ {
+ get
+ {
+ if (dateTimeOffsetPattern == null)
+ {
+ string dateTimePattern = ShortDatePattern + " " + LongTimePattern;
+
+ /* LongTimePattern might contain a "z" as part of the format string in which case we don't want to append a time zone offset */
+
+ bool foundZ = false;
+ bool inQuote = false;
+ char quote = '\'';
+ for (int i = 0; !foundZ && i < LongTimePattern.Length; i++)
+ {
+ switch (LongTimePattern[i])
+ {
+ case 'z':
+ /* if we aren't in a quote, we've found a z */
+ foundZ = !inQuote;
+ /* we'll fall out of the loop now because the test includes !foundZ */
+ break;
+ case '\'':
+ case '\"':
+ if (inQuote && (quote == LongTimePattern[i]))
+ {
+ /* we were in a quote and found a matching exit quote, so we are outside a quote now */
+ inQuote = false;
+ }
+ else if (!inQuote)
+ {
+ quote = LongTimePattern[i];
+ inQuote = true;
+ }
+ else
+ {
+ /* we were in a quote and saw the other type of quote character, so we are still in a quote */
+ }
+ break;
+ case '%':
+ case '\\':
+ i++; /* skip next character that is escaped by this backslash */
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (!foundZ)
+ {
+ dateTimePattern = dateTimePattern + " zzz";
+ }
+
+ dateTimeOffsetPattern = dateTimePattern;
+ }
+ return (dateTimeOffsetPattern);
+ }
+ }
+
+ // Note that cultureData derives this from the long time format (unless someone's set this previously)
+ // Note that this property is quite undesirable.
+ public string TimeSeparator
+ {
+ get
+ {
+ if (timeSeparator == null)
+ {
+ timeSeparator = _cultureData.TimeSeparator;
+ }
+ Debug.Assert(this.timeSeparator != null, "DateTimeFormatInfo.TimeSeparator, timeSeparator != null");
+ return (timeSeparator);
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value), SR.ArgumentNull_String);
+ }
+
+ Contract.EndContractBlock();
+ ClearTokenHashTable();
+
+ timeSeparator = value;
+ }
+ }
+
+ public String UniversalSortableDateTimePattern
+ {
+ get
+ {
+ return (universalSortableDateTimePattern);
+ }
+ }
+
+ // For our "patterns" arrays we have 2 variables, a string and a string[]
+ //
+ // The string[] contains the list of patterns, EXCEPT the default may not be included.
+ // The string contains the default pattern.
+ // When we initially construct our string[], we set the string to string[0]
+ public String YearMonthPattern
+ {
+ get
+ {
+ // Initialize our year/month pattern from the 1st array value if not set
+ if (this.yearMonthPattern == null)
+ {
+ // Initialize our data
+ this.yearMonthPattern = this.UnclonedYearMonthPatterns[0];
+ }
+ return this.yearMonthPattern;
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_String);
+ }
+ Contract.EndContractBlock();
+
+ // Remember the new string
+ this.yearMonthPattern = value;
+
+ // Clear the token hash table, note that even short times could require this
+ ClearTokenHashTable();
+ }
+ }
+
+ //
+ // Check if a string array contains a null value, and throw ArgumentNullException with parameter name "value"
+ //
+ private static void CheckNullValue(String[] values, int length)
+ {
+ Debug.Assert(values != null, "value != null");
+ Debug.Assert(values.Length >= length);
+ for (int i = 0; i < length; i++)
+ {
+ if (values[i] == null)
+ {
+ throw new ArgumentNullException("value",
+ SR.ArgumentNull_ArrayValue);
+ }
+ }
+ }
+
+
+ public String[] AbbreviatedDayNames
+ {
+ get
+ {
+ return ((String[])internalGetAbbreviatedDayOfWeekNames().Clone());
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_Array);
+ }
+ if (value.Length != 7)
+ {
+ throw new ArgumentException(SR.Format(SR.Argument_InvalidArrayLength, 7), nameof(value));
+ }
+ Contract.EndContractBlock();
+ CheckNullValue(value, value.Length);
+ ClearTokenHashTable();
+
+ abbreviatedDayNames = value;
+ }
+ }
+
+ // Returns the string array of the one-letter day of week names.
+ public String[] ShortestDayNames
+ {
+ get
+ {
+ return ((String[])internalGetSuperShortDayNames().Clone());
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_Array);
+ }
+ if (value.Length != 7)
+ {
+ throw new ArgumentException(SR.Format(SR.Argument_InvalidArrayLength, 7), nameof(value));
+ }
+ Contract.EndContractBlock();
+ CheckNullValue(value, value.Length);
+ this.m_superShortDayNames = value;
+ }
+ }
+
+
+ public String[] DayNames
+ {
+ get
+ {
+ return ((String[])internalGetDayOfWeekNames().Clone());
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_Array);
+ }
+ if (value.Length != 7)
+ {
+ throw new ArgumentException(SR.Format(SR.Argument_InvalidArrayLength, 7), nameof(value));
+ }
+ Contract.EndContractBlock();
+ CheckNullValue(value, value.Length);
+ ClearTokenHashTable();
+
+ dayNames = value;
+ }
+ }
+
+
+ public String[] AbbreviatedMonthNames
+ {
+ get
+ {
+ return ((String[])internalGetAbbreviatedMonthNames().Clone());
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_Array);
+ }
+ if (value.Length != 13)
+ {
+ throw new ArgumentException(SR.Format(SR.Argument_InvalidArrayLength, 13), nameof(value));
+ }
+ Contract.EndContractBlock();
+ CheckNullValue(value, value.Length - 1);
+ ClearTokenHashTable();
+ abbreviatedMonthNames = value;
+ }
+ }
+
+
+ public String[] MonthNames
+ {
+ get
+ {
+ return ((String[])internalGetMonthNames().Clone());
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_Array);
+ }
+ if (value.Length != 13)
+ {
+ throw new ArgumentException(SR.Format(SR.Argument_InvalidArrayLength, 13), nameof(value));
+ }
+ Contract.EndContractBlock();
+ CheckNullValue(value, value.Length - 1);
+ monthNames = value;
+ ClearTokenHashTable();
+ }
+ }
+
+ // Whitespaces that we allow in the month names.
+ // U+00a0 is non-breaking space.
+ private static readonly char[] s_monthSpaces = { ' ', '\u00a0' };
+
+ internal bool HasSpacesInMonthNames
+ {
+ get
+ {
+ return (FormatFlags & DateTimeFormatFlags.UseSpacesInMonthNames) != 0;
+ }
+ }
+
+ internal bool HasSpacesInDayNames
+ {
+ get
+ {
+ return (FormatFlags & DateTimeFormatFlags.UseSpacesInDayNames) != 0;
+ }
+ }
+
+
+ //
+ // internalGetMonthName
+ //
+ // Actions: Return the month name using the specified MonthNameStyles in either abbreviated form
+ // or full form.
+ // Arguments:
+ // month
+ // style To indicate a form like regular/genitive/month name in a leap year.
+ // abbreviated When true, return abbreviated form. Otherwise, return a full form.
+ // Exceptions:
+ // ArgumentOutOfRangeException When month name is invalid.
+ //
+ internal String internalGetMonthName(int month, MonthNameStyles style, bool abbreviated)
+ {
+ //
+ // Right now, style is mutual exclusive, but I make the style to be flag so that
+ // maybe we can combine flag if there is such a need.
+ //
+ String[] monthNamesArray = null;
+ switch (style)
+ {
+ case MonthNameStyles.Genitive:
+ monthNamesArray = internalGetGenitiveMonthNames(abbreviated);
+ break;
+ case MonthNameStyles.LeapYear:
+ monthNamesArray = internalGetLeapYearMonthNames(/*abbreviated*/);
+ break;
+ default:
+ monthNamesArray = (abbreviated ? internalGetAbbreviatedMonthNames() : internalGetMonthNames());
+ break;
+ }
+ // The month range is from 1 ~ this.m_monthNames.Length
+ // (actually is 13 right now for all cases)
+ if ((month < 1) || (month > monthNamesArray.Length))
+ {
+ throw new ArgumentOutOfRangeException(
+ nameof(month), SR.Format(SR.ArgumentOutOfRange_Range,
+ 1, monthNamesArray.Length));
+ }
+ return (monthNamesArray[month - 1]);
+ }
+
+ //
+ // internalGetGenitiveMonthNames
+ //
+ // Action: Retrieve the array which contains the month names in genitive form.
+ // If this culture does not use the gentive form, the normal month name is returned.
+ // Arguments:
+ // abbreviated When true, return abbreviated form. Otherwise, return a full form.
+ //
+ private String[] internalGetGenitiveMonthNames(bool abbreviated)
+ {
+ if (abbreviated)
+ {
+ if (this.m_genitiveAbbreviatedMonthNames == null)
+ {
+ this.m_genitiveAbbreviatedMonthNames = _cultureData.AbbreviatedGenitiveMonthNames(this.Calendar.ID);
+ Debug.Assert(this.m_genitiveAbbreviatedMonthNames.Length == 13,
+ "[DateTimeFormatInfo.GetGenitiveMonthNames] Expected 13 abbreviated genitive month names in a year");
+ }
+ return (this.m_genitiveAbbreviatedMonthNames);
+ }
+
+ if (this.genitiveMonthNames == null)
+ {
+ this.genitiveMonthNames = _cultureData.GenitiveMonthNames(this.Calendar.ID);
+ Debug.Assert(this.genitiveMonthNames.Length == 13,
+ "[DateTimeFormatInfo.GetGenitiveMonthNames] Expected 13 genitive month names in a year");
+ }
+ return (this.genitiveMonthNames);
+ }
+
+ //
+ // internalGetLeapYearMonthNames
+ //
+ // Actions: Retrieve the month names used in a leap year.
+ // If this culture does not have different month names in a leap year, the normal month name is returned.
+ // Agruments: None. (can use abbreviated later if needed)
+ //
+ internal String[] internalGetLeapYearMonthNames(/*bool abbreviated*/)
+ {
+ if (this.leapYearMonthNames == null)
+ {
+ Debug.Assert(Calendar.ID > 0, "[DateTimeFormatInfo.internalGetLeapYearMonthNames] Expected Calendar.ID > 0");
+ this.leapYearMonthNames = _cultureData.LeapYearMonthNames(Calendar.ID);
+ Debug.Assert(this.leapYearMonthNames.Length == 13,
+ "[DateTimeFormatInfo.internalGetLeapYearMonthNames] Expepcted 13 leap year month names");
+ }
+ return (leapYearMonthNames);
+ }
+
+
+ public String GetAbbreviatedDayName(DayOfWeek dayofweek)
+ {
+ if ((int)dayofweek < 0 || (int)dayofweek > 6)
+ {
+ throw new ArgumentOutOfRangeException(
+ nameof(dayofweek), SR.Format(SR.ArgumentOutOfRange_Range,
+ DayOfWeek.Sunday, DayOfWeek.Saturday));
+ }
+ Contract.EndContractBlock();
+ //
+ // Don't call the public property AbbreviatedDayNames here since a clone is needed in that
+ // property, so it will be slower. Instead, use GetAbbreviatedDayOfWeekNames() directly.
+ //
+ return (internalGetAbbreviatedDayOfWeekNames()[(int)dayofweek]);
+ }
+
+ // Returns the super short day of week names for the specified day of week.
+ public string GetShortestDayName(DayOfWeek dayOfWeek)
+ {
+ if ((int)dayOfWeek < 0 || (int)dayOfWeek > 6)
+ {
+ throw new ArgumentOutOfRangeException(
+ nameof(dayOfWeek), SR.Format(SR.ArgumentOutOfRange_Range,
+ DayOfWeek.Sunday, DayOfWeek.Saturday));
+ }
+ Contract.EndContractBlock();
+ //
+ // Don't call the public property SuperShortDayNames here since a clone is needed in that
+ // property, so it will be slower. Instead, use internalGetSuperShortDayNames() directly.
+ //
+ return (internalGetSuperShortDayNames()[(int)dayOfWeek]);
+ }
+
+ // Get all possible combination of inputs
+ private static String[] GetCombinedPatterns(String[] patterns1, String[] patterns2, String connectString)
+ {
+ Debug.Assert(patterns1 != null);
+ Debug.Assert(patterns2 != null);
+
+ // Get array size
+ String[] result = new String[patterns1.Length * patterns2.Length];
+
+ // Counter of actual results
+ int k = 0;
+ for (int i = 0; i < patterns1.Length; i++)
+ {
+ for (int j = 0; j < patterns2.Length; j++)
+ {
+ // Can't combine if null or empty
+ result[k++] = patterns1[i] + connectString + patterns2[j];
+ }
+ }
+
+ // Return the combinations
+ return (result);
+ }
+
+ public string[] GetAllDateTimePatterns()
+ {
+ List<String> results = new List<String>(DEFAULT_ALL_DATETIMES_SIZE);
+
+ for (int i = 0; i < DateTimeFormat.allStandardFormats.Length; i++)
+ {
+ String[] strings = GetAllDateTimePatterns(DateTimeFormat.allStandardFormats[i]);
+ for (int j = 0; j < strings.Length; j++)
+ {
+ results.Add(strings[j]);
+ }
+ }
+ return results.ToArray();
+ }
+
+ public string[] GetAllDateTimePatterns(char format)
+ {
+ Contract.Ensures(Contract.Result<String[]>() != null);
+ String[] result = null;
+
+ switch (format)
+ {
+ case 'd':
+ result = this.AllShortDatePatterns;
+ break;
+ case 'D':
+ result = this.AllLongDatePatterns;
+ break;
+ case 'f':
+ result = GetCombinedPatterns(AllLongDatePatterns, AllShortTimePatterns, " ");
+ break;
+ case 'F':
+ case 'U':
+ result = GetCombinedPatterns(AllLongDatePatterns, AllLongTimePatterns, " ");
+ break;
+ case 'g':
+ result = GetCombinedPatterns(AllShortDatePatterns, AllShortTimePatterns, " ");
+ break;
+ case 'G':
+ result = GetCombinedPatterns(AllShortDatePatterns, AllLongTimePatterns, " ");
+ break;
+ case 'm':
+ case 'M':
+ result = new String[] { MonthDayPattern };
+ break;
+ case 'o':
+ case 'O':
+ result = new String[] { RoundtripFormat };
+ break;
+ case 'r':
+ case 'R':
+ result = new String[] { rfc1123Pattern };
+ break;
+ case 's':
+ result = new String[] { sortableDateTimePattern };
+ break;
+ case 't':
+ result = this.AllShortTimePatterns;
+ break;
+ case 'T':
+ result = this.AllLongTimePatterns;
+ break;
+ case 'u':
+ result = new String[] { UniversalSortableDateTimePattern };
+ break;
+ case 'y':
+ case 'Y':
+ result = this.AllYearMonthPatterns;
+ break;
+ default:
+ throw new ArgumentException(SR.Format_BadFormatSpecifier, nameof(format));
+ }
+ return (result);
+ }
+
+
+ public String GetDayName(DayOfWeek dayofweek)
+ {
+ if ((int)dayofweek < 0 || (int)dayofweek > 6)
+ {
+ throw new ArgumentOutOfRangeException(
+ nameof(dayofweek), SR.Format(SR.ArgumentOutOfRange_Range,
+ DayOfWeek.Sunday, DayOfWeek.Saturday));
+ }
+ Contract.EndContractBlock();
+
+ // Use the internal one so that we don't clone the array unnecessarily
+ return (internalGetDayOfWeekNames()[(int)dayofweek]);
+ }
+
+
+
+ public String GetAbbreviatedMonthName(int month)
+ {
+ if (month < 1 || month > 13)
+ {
+ throw new ArgumentOutOfRangeException(
+ nameof(month), SR.Format(SR.ArgumentOutOfRange_Range,
+ 1, 13));
+ }
+ Contract.EndContractBlock();
+ // Use the internal one so we don't clone the array unnecessarily
+ return (internalGetAbbreviatedMonthNames()[month - 1]);
+ }
+
+
+ public String GetMonthName(int month)
+ {
+ if (month < 1 || month > 13)
+ {
+ throw new ArgumentOutOfRangeException(
+ nameof(month), SR.Format(SR.ArgumentOutOfRange_Range,
+ 1, 13));
+ }
+ Contract.EndContractBlock();
+ // Use the internal one so we don't clone the array unnecessarily
+ return (internalGetMonthNames()[month - 1]);
+ }
+
+ // For our "patterns" arrays we have 2 variables, a string and a string[]
+ //
+ // The string[] contains the list of patterns, EXCEPT the default may not be included.
+ // The string contains the default pattern.
+ // When we initially construct our string[], we set the string to string[0]
+ //
+ // The resulting [] can get returned to the calling app, so clone it.
+ private static string[] GetMergedPatterns(string[] patterns, string defaultPattern)
+ {
+ Debug.Assert(patterns != null && patterns.Length > 0,
+ "[DateTimeFormatInfo.GetMergedPatterns]Expected array of at least one pattern");
+ Debug.Assert(defaultPattern != null,
+ "[DateTimeFormatInfo.GetMergedPatterns]Expected non null default string");
+
+ // If the default happens to be the first in the list just return (a cloned) copy
+ if (defaultPattern == patterns[0])
+ {
+ return (string[])patterns.Clone();
+ }
+
+ // We either need a bigger list, or the pattern from the list.
+ int i;
+ for (i = 0; i < patterns.Length; i++)
+ {
+ // Stop if we found it
+ if (defaultPattern == patterns[i])
+ break;
+ }
+
+ // Either way we're going to need a new array
+ string[] newPatterns;
+
+ // Did we find it
+ if (i < patterns.Length)
+ {
+ // Found it, output will be same size
+ newPatterns = (string[])patterns.Clone();
+
+ // Have to move [0] item to [i] so we can re-write default at [0]
+ // (remember defaultPattern == [i] so this is OK)
+ newPatterns[i] = newPatterns[0];
+ }
+ else
+ {
+ // Not found, make room for it
+ newPatterns = new String[patterns.Length + 1];
+
+ // Copy existing array
+ Array.Copy(patterns, 0, newPatterns, 1, patterns.Length);
+ }
+
+ // Remember the default
+ newPatterns[0] = defaultPattern;
+
+ // Return the reconstructed list
+ return newPatterns;
+ }
+
+ // Needed by DateTimeFormatInfo and DateTimeFormat
+ internal const String RoundtripFormat = "yyyy'-'MM'-'dd'T'HH':'mm':'ss.fffffffK";
+ internal const String RoundtripDateTimeUnfixed = "yyyy'-'MM'-'ddTHH':'mm':'ss zzz";
+
+ // Default string isn't necessarily in our string array, so get the
+ // merged patterns of both
+ private String[] AllYearMonthPatterns
+ {
+ get
+ {
+ return GetMergedPatterns(this.UnclonedYearMonthPatterns, this.YearMonthPattern);
+ }
+ }
+
+ private String[] AllShortDatePatterns
+ {
+ get
+ {
+ return GetMergedPatterns(this.UnclonedShortDatePatterns, this.ShortDatePattern);
+ }
+ }
+
+ private String[] AllShortTimePatterns
+ {
+ get
+ {
+ return GetMergedPatterns(this.UnclonedShortTimePatterns, this.ShortTimePattern);
+ }
+ }
+
+ private String[] AllLongDatePatterns
+ {
+ get
+ {
+ return GetMergedPatterns(this.UnclonedLongDatePatterns, this.LongDatePattern);
+ }
+ }
+
+ private String[] AllLongTimePatterns
+ {
+ get
+ {
+ return GetMergedPatterns(this.UnclonedLongTimePatterns, this.LongTimePattern);
+ }
+ }
+
+ // NOTE: Clone this string array if you want to return it to user. Otherwise, you are returning a writable cache copy.
+ // This won't include default, call AllYearMonthPatterns
+ private String[] UnclonedYearMonthPatterns
+ {
+ get
+ {
+ if (allYearMonthPatterns == null)
+ {
+ Debug.Assert(Calendar.ID > 0, "[DateTimeFormatInfo.UnclonedYearMonthPatterns] Expected Calendar.ID > 0");
+ this.allYearMonthPatterns = _cultureData.YearMonths(this.Calendar.ID);
+ Debug.Assert(this.allYearMonthPatterns.Length > 0,
+ "[DateTimeFormatInfo.UnclonedYearMonthPatterns] Expected some year month patterns");
+ }
+
+ return allYearMonthPatterns;
+ }
+ }
+
+
+ // NOTE: Clone this string array if you want to return it to user. Otherwise, you are returning a writable cache copy.
+ // This won't include default, call AllShortDatePatterns
+ private String[] UnclonedShortDatePatterns
+ {
+ get
+ {
+ if (allShortDatePatterns == null)
+ {
+ Debug.Assert(Calendar.ID > 0, "[DateTimeFormatInfo.UnclonedShortDatePatterns] Expected Calendar.ID > 0");
+ this.allShortDatePatterns = _cultureData.ShortDates(this.Calendar.ID);
+ Debug.Assert(this.allShortDatePatterns.Length > 0,
+ "[DateTimeFormatInfo.UnclonedShortDatePatterns] Expected some short date patterns");
+ }
+
+ return this.allShortDatePatterns;
+ }
+ }
+
+ // NOTE: Clone this string array if you want to return it to user. Otherwise, you are returning a writable cache copy.
+ // This won't include default, call AllLongDatePatterns
+ private String[] UnclonedLongDatePatterns
+ {
+ get
+ {
+ if (allLongDatePatterns == null)
+ {
+ Debug.Assert(Calendar.ID > 0, "[DateTimeFormatInfo.UnclonedLongDatePatterns] Expected Calendar.ID > 0");
+ this.allLongDatePatterns = _cultureData.LongDates(this.Calendar.ID);
+ Debug.Assert(this.allLongDatePatterns.Length > 0,
+ "[DateTimeFormatInfo.UnclonedLongDatePatterns] Expected some long date patterns");
+ }
+
+ return this.allLongDatePatterns;
+ }
+ }
+
+ // NOTE: Clone this string array if you want to return it to user. Otherwise, you are returning a writable cache copy.
+ // This won't include default, call AllShortTimePatterns
+ private String[] UnclonedShortTimePatterns
+ {
+ get
+ {
+ if (this.allShortTimePatterns == null)
+ {
+ this.allShortTimePatterns = _cultureData.ShortTimes;
+ Debug.Assert(this.allShortTimePatterns.Length > 0,
+ "[DateTimeFormatInfo.UnclonedShortTimePatterns] Expected some short time patterns");
+ }
+
+ return this.allShortTimePatterns;
+ }
+ }
+
+ // NOTE: Clone this string array if you want to return it to user. Otherwise, you are returning a writable cache copy.
+ // This won't include default, call AllLongTimePatterns
+ private String[] UnclonedLongTimePatterns
+ {
+ get
+ {
+ if (this.allLongTimePatterns == null)
+ {
+ this.allLongTimePatterns = _cultureData.LongTimes;
+ Debug.Assert(this.allLongTimePatterns.Length > 0,
+ "[DateTimeFormatInfo.UnclonedLongTimePatterns] Expected some long time patterns");
+ }
+
+ return this.allLongTimePatterns;
+ }
+ }
+
+ public static DateTimeFormatInfo ReadOnly(DateTimeFormatInfo dtfi)
+ {
+ if (dtfi == null)
+ {
+ throw new ArgumentNullException(nameof(dtfi),
+ SR.ArgumentNull_Obj);
+ }
+ Contract.EndContractBlock();
+ if (dtfi.IsReadOnly)
+ {
+ return (dtfi);
+ }
+ DateTimeFormatInfo newInfo = (DateTimeFormatInfo)(dtfi.MemberwiseClone());
+ // We can use the data member calendar in the setter, instead of the property Calendar,
+ // since the cloned copy should have the same state as the original copy.
+ newInfo.calendar = Calendar.ReadOnly(dtfi.Calendar);
+ newInfo._isReadOnly = true;
+ return (newInfo);
+ }
+
+ public bool IsReadOnly
+ {
+ get
+ {
+ return (_isReadOnly);
+ }
+ }
+
+ // Return the native name for the calendar in DTFI.Calendar. The native name is referred to
+ // the culture used to create the DTFI. E.g. in the following example, the native language is Japanese.
+ // DateTimeFormatInfo dtfi = new CultureInfo("ja-JP", false).DateTimeFormat.Calendar = new JapaneseCalendar();
+ // String nativeName = dtfi.NativeCalendarName; // Get the Japanese name for the Japanese calendar.
+ // DateTimeFormatInfo dtfi = new CultureInfo("ja-JP", false).DateTimeFormat.Calendar = new GregorianCalendar(GregorianCalendarTypes.Localized);
+ // String nativeName = dtfi.NativeCalendarName; // Get the Japanese name for the Gregorian calendar.
+ public string NativeCalendarName
+ {
+ get
+ {
+ return _cultureData.CalendarName(Calendar.ID);
+ }
+ }
+
+ //
+ // Used by custom cultures and others to set the list of available formats. Note that none of them are
+ // explicitly used unless someone calls GetAllDateTimePatterns and subsequently uses one of the items
+ // from the list.
+ //
+ // Most of the format characters that can be used in GetAllDateTimePatterns are
+ // not really needed since they are one of the following:
+ //
+ // r/R/s/u locale-independent constants -- cannot be changed!
+ // m/M/y/Y fields with a single string in them -- that can be set through props directly
+ // f/F/g/G/U derived fields based on combinations of various of the below formats
+ //
+ // NOTE: No special validation is done here beyond what is done when the actual respective fields
+ // are used (what would be the point of disallowing here what we allow in the appropriate property?)
+ //
+ // WARNING: If more validation is ever done in one place, it should be done in the other.
+ //
+ public void SetAllDateTimePatterns(String[] patterns, char format)
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+
+ if (patterns == null)
+ {
+ throw new ArgumentNullException(nameof(patterns), SR.ArgumentNull_Array);
+ }
+
+ if (patterns.Length == 0)
+ {
+ throw new ArgumentException(SR.Arg_ArrayZeroError, nameof(patterns));
+ }
+
+ Contract.EndContractBlock();
+
+ for (int i = 0; i < patterns.Length; i++)
+ {
+ if (patterns[i] == null)
+ {
+ throw new ArgumentNullException("patterns[" + i + "]", SR.ArgumentNull_ArrayValue);
+ }
+ }
+
+ // Remember the patterns, and use the 1st as default
+ switch (format)
+ {
+ case 'd':
+ allShortDatePatterns = patterns;
+ shortDatePattern = allShortDatePatterns[0];
+ break;
+
+ case 'D':
+ allLongDatePatterns = patterns;
+ longDatePattern = allLongDatePatterns[0];
+ break;
+
+ case 't':
+ allShortTimePatterns = patterns;
+ shortTimePattern = allShortTimePatterns[0];
+ break;
+
+ case 'T':
+ allLongTimePatterns = patterns;
+ longTimePattern = allLongTimePatterns[0];
+ break;
+
+ case 'y':
+ case 'Y':
+ allYearMonthPatterns = patterns;
+ yearMonthPattern = allYearMonthPatterns[0];
+ break;
+
+ default:
+ throw new ArgumentException(SR.Format_BadFormatSpecifier, nameof(format));
+ }
+
+ // Clear the token hash table, note that even short dates could require this
+ ClearTokenHashTable();
+ }
+
+ public String[] AbbreviatedMonthGenitiveNames
+ {
+ get
+ {
+ return ((String[])internalGetGenitiveMonthNames(true).Clone());
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_Array);
+ }
+ if (value.Length != 13)
+ {
+ throw new ArgumentException(SR.Format(SR.Argument_InvalidArrayLength, 13), nameof(value));
+ }
+ Contract.EndContractBlock();
+ CheckNullValue(value, value.Length - 1);
+ ClearTokenHashTable();
+ this.m_genitiveAbbreviatedMonthNames = value;
+ }
+ }
+
+ public String[] MonthGenitiveNames
+ {
+ get
+ {
+ return ((String[])internalGetGenitiveMonthNames(false).Clone());
+ }
+
+ set
+ {
+ if (IsReadOnly)
+ throw new InvalidOperationException(SR.InvalidOperation_ReadOnly);
+ if (value == null)
+ {
+ throw new ArgumentNullException(nameof(value),
+ SR.ArgumentNull_Array);
+ }
+ if (value.Length != 13)
+ {
+ throw new ArgumentException(SR.Format(SR.Argument_InvalidArrayLength, 13), nameof(value));
+ }
+ Contract.EndContractBlock();
+ CheckNullValue(value, value.Length - 1);
+ genitiveMonthNames = value;
+ ClearTokenHashTable();
+ }
+ }
+
+ //
+ // Positive TimeSpan Pattern
+ //
+ [NonSerialized]
+ private string _fullTimeSpanPositivePattern;
+ internal String FullTimeSpanPositivePattern
+ {
+ get
+ {
+ if (_fullTimeSpanPositivePattern == null)
+ {
+ CultureData cultureDataWithoutUserOverrides;
+ if (_cultureData.UseUserOverride)
+ cultureDataWithoutUserOverrides = CultureData.GetCultureData(_cultureData.CultureName, false);
+ else
+ cultureDataWithoutUserOverrides = _cultureData;
+ String decimalSeparator = new NumberFormatInfo(cultureDataWithoutUserOverrides).NumberDecimalSeparator;
+
+ _fullTimeSpanPositivePattern = "d':'h':'mm':'ss'" + decimalSeparator + "'FFFFFFF";
+ }
+ return _fullTimeSpanPositivePattern;
+ }
+ }
+
+ //
+ // Negative TimeSpan Pattern
+ //
+ [NonSerialized]
+ private string _fullTimeSpanNegativePattern;
+ internal String FullTimeSpanNegativePattern
+ {
+ get
+ {
+ if (_fullTimeSpanNegativePattern == null)
+ _fullTimeSpanNegativePattern = "'-'" + FullTimeSpanPositivePattern;
+ return _fullTimeSpanNegativePattern;
+ }
+ }
+
+ //
+ // Get suitable CompareInfo from current DTFI object.
+ //
+ internal CompareInfo CompareInfo
+ {
+ get
+ {
+ if (_compareInfo == null)
+ {
+ // We use the regular GetCompareInfo here to make sure the created CompareInfo object is stored in the
+ // CompareInfo cache. otherwise we would just create CompareInfo using _cultureData.
+ _compareInfo = CompareInfo.GetCompareInfo(_cultureData.SCOMPAREINFO);
+ }
+
+ return _compareInfo;
+ }
+ }
+
+
+ internal const DateTimeStyles InvalidDateTimeStyles = ~(DateTimeStyles.AllowLeadingWhite | DateTimeStyles.AllowTrailingWhite
+ | DateTimeStyles.AllowInnerWhite | DateTimeStyles.NoCurrentDateDefault
+ | DateTimeStyles.AdjustToUniversal | DateTimeStyles.AssumeLocal
+ | DateTimeStyles.AssumeUniversal | DateTimeStyles.RoundtripKind);
+
+ internal static void ValidateStyles(DateTimeStyles style, String parameterName)
+ {
+ if ((style & InvalidDateTimeStyles) != 0)
+ {
+ throw new ArgumentException(SR.Argument_InvalidDateTimeStyles, parameterName);
+ }
+ if (((style & (DateTimeStyles.AssumeLocal)) != 0) && ((style & (DateTimeStyles.AssumeUniversal)) != 0))
+ {
+ throw new ArgumentException(SR.Argument_ConflictingDateTimeStyles, parameterName);
+ }
+ Contract.EndContractBlock();
+ if (((style & DateTimeStyles.RoundtripKind) != 0)
+ && ((style & (DateTimeStyles.AssumeLocal | DateTimeStyles.AssumeUniversal | DateTimeStyles.AdjustToUniversal)) != 0))
+ {
+ throw new ArgumentException(SR.Argument_ConflictingDateTimeRoundtripStyles, parameterName);
+ }
+ }
+
+ //
+ // Actions: Return the internal flag used in formatting and parsing.
+ // The flag can be used to indicate things like if genitive forms is used in this DTFi, or if leap year gets different month names.
+ //
+ internal DateTimeFormatFlags FormatFlags
+ {
+ get
+ {
+ if (formatFlags == DateTimeFormatFlags.NotInitialized)
+ {
+ // Build the format flags from the data in this DTFI
+ formatFlags = DateTimeFormatFlags.None;
+ formatFlags |= (DateTimeFormatFlags)DateTimeFormatInfoScanner.GetFormatFlagGenitiveMonth(
+ MonthNames, internalGetGenitiveMonthNames(false), AbbreviatedMonthNames, internalGetGenitiveMonthNames(true));
+ formatFlags |= (DateTimeFormatFlags)DateTimeFormatInfoScanner.GetFormatFlagUseSpaceInMonthNames(
+ MonthNames, internalGetGenitiveMonthNames(false), AbbreviatedMonthNames, internalGetGenitiveMonthNames(true));
+ formatFlags |= (DateTimeFormatFlags)DateTimeFormatInfoScanner.GetFormatFlagUseSpaceInDayNames(DayNames, AbbreviatedDayNames);
+ formatFlags |= (DateTimeFormatFlags)DateTimeFormatInfoScanner.GetFormatFlagUseHebrewCalendar((int)Calendar.ID);
+ }
+ return (formatFlags);
+ }
+ }
+
+ internal Boolean HasForceTwoDigitYears
+ {
+ get
+ {
+ switch (calendar.ID)
+ {
+ // Handle Japanese and Taiwan cases.
+ // If is y/yy, do not get (year % 100). "y" will print
+ // year without leading zero. "yy" will print year with two-digit in leading zero.
+ // If pattern is yyy/yyyy/..., print year value with two-digit in leading zero.
+ // So year 5 is "05", and year 125 is "125".
+ // The reason for not doing (year % 100) is for Taiwan calendar.
+ // If year 125, then output 125 and not 25.
+ // Note: OS uses "yyyy" for Taiwan calendar by default.
+ case (CalendarId.JAPAN):
+ case (CalendarId.TAIWAN):
+ return true;
+ }
+ return false;
+ }
+ }
+
+ // Returns whether the YearMonthAdjustment function has any fix-up work to do for this culture/calendar.
+ internal Boolean HasYearMonthAdjustment
+ {
+ get
+ {
+ return ((FormatFlags & DateTimeFormatFlags.UseHebrewRule) != 0);
+ }
+ }
+
+ // This is a callback that the parser can make back into the DTFI to let it fiddle with special
+ // cases associated with that culture or calendar. Currently this only has special cases for
+ // the Hebrew calendar, but this could be extended to other cultures.
+ //
+ // The return value is whether the year and month are actually valid for this calendar.
+ internal Boolean YearMonthAdjustment(ref int year, ref int month, Boolean parsedMonthName)
+ {
+ if ((FormatFlags & DateTimeFormatFlags.UseHebrewRule) != 0)
+ {
+ // Special rules to fix up the Hebrew year/month
+
+ // When formatting, we only format up to the hundred digit of the Hebrew year, although Hebrew year is now over 5000.
+ // E.g. if the year is 5763, we only format as 763.
+ if (year < 1000)
+ {
+ year += 5000;
+ }
+
+ // Because we need to calculate leap year, we should fall out now for an invalid year.
+ if (year < Calendar.GetYear(Calendar.MinSupportedDateTime) || year > Calendar.GetYear(Calendar.MaxSupportedDateTime))
+ {
+ return false;
+ }
+
+ // To handle leap months, the set of month names in the symbol table does not always correspond to the numbers.
+ // For non-leap years, month 7 (Adar Bet) is not present, so we need to make using this month invalid and
+ // shuffle the other months down.
+ if (parsedMonthName)
+ {
+ if (!Calendar.IsLeapYear(year))
+ {
+ if (month >= 8)
+ {
+ month--;
+ }
+ else if (month == 7)
+ {
+ return false;
+ }
+ }
+ }
+ }
+ return true;
+ }
+
+ //
+ // DateTimeFormatInfo tokenizer. This is used by DateTime.Parse() to break input string into tokens.
+ //
+ [NonSerialized]
+ private TokenHashValue[] _dtfiTokenHash;
+
+ private const int TOKEN_HASH_SIZE = 199;
+ private const int SECOND_PRIME = 197;
+ private const String dateSeparatorOrTimeZoneOffset = "-";
+ private const String invariantDateSeparator = "/";
+ private const String invariantTimeSeparator = ":";
+
+ //
+ // Common Ignorable Symbols
+ //
+ internal const String IgnorablePeriod = ".";
+ internal const String IgnorableComma = ",";
+
+ //
+ // Year/Month/Day suffixes
+ //
+ internal const String CJKYearSuff = "\u5e74";
+ internal const String CJKMonthSuff = "\u6708";
+ internal const String CJKDaySuff = "\u65e5";
+
+ internal const String KoreanYearSuff = "\ub144";
+ internal const String KoreanMonthSuff = "\uc6d4";
+ internal const String KoreanDaySuff = "\uc77c";
+
+ internal const String KoreanHourSuff = "\uc2dc";
+ internal const String KoreanMinuteSuff = "\ubd84";
+ internal const String KoreanSecondSuff = "\ucd08";
+
+ internal const String CJKHourSuff = "\u6642";
+ internal const String ChineseHourSuff = "\u65f6";
+
+ internal const String CJKMinuteSuff = "\u5206";
+ internal const String CJKSecondSuff = "\u79d2";
+
+ internal const String LocalTimeMark = "T";
+
+ internal const String GMTName = "GMT";
+ internal const String ZuluName = "Z";
+
+ internal const String KoreanLangName = "ko";
+ internal const String JapaneseLangName = "ja";
+ internal const String EnglishLangName = "en";
+
+ private static volatile DateTimeFormatInfo s_jajpDTFI;
+ private static volatile DateTimeFormatInfo s_zhtwDTFI;
+
+ //
+ // Create a Japanese DTFI which uses JapaneseCalendar. This is used to parse
+ // date string with Japanese era name correctly even when the supplied DTFI
+ // does not use Japanese calendar.
+ // The created instance is stored in global s_jajpDTFI.
+ //
+ internal static DateTimeFormatInfo GetJapaneseCalendarDTFI()
+ {
+ DateTimeFormatInfo temp = s_jajpDTFI;
+ if (temp == null)
+ {
+ temp = new CultureInfo("ja-JP", false).DateTimeFormat;
+ temp.Calendar = JapaneseCalendar.GetDefaultInstance();
+ s_jajpDTFI = temp;
+ }
+ return (temp);
+ }
+
+ // Create a Taiwan DTFI which uses TaiwanCalendar. This is used to parse
+ // date string with era name correctly even when the supplied DTFI
+ // does not use Taiwan calendar.
+ // The created instance is stored in global s_zhtwDTFI.
+ internal static DateTimeFormatInfo GetTaiwanCalendarDTFI()
+ {
+ DateTimeFormatInfo temp = s_zhtwDTFI;
+ if (temp == null)
+ {
+ temp = new CultureInfo("zh-TW", false).DateTimeFormat;
+ temp.Calendar = TaiwanCalendar.GetDefaultInstance();
+ s_zhtwDTFI = temp;
+ }
+ return (temp);
+ }
+
+
+ // DTFI properties should call this when the setter are called.
+ private void ClearTokenHashTable()
+ {
+ _dtfiTokenHash = null;
+ formatFlags = DateTimeFormatFlags.NotInitialized;
+ }
+
+ internal TokenHashValue[] CreateTokenHashTable()
+ {
+ TokenHashValue[] temp = _dtfiTokenHash;
+ if (temp == null)
+ {
+ temp = new TokenHashValue[TOKEN_HASH_SIZE];
+
+ bool koreanLanguage = LanguageName.Equals(KoreanLangName);
+
+ string sep = this.TimeSeparator.Trim();
+ if (IgnorableComma != sep) InsertHash(temp, IgnorableComma, TokenType.IgnorableSymbol, 0);
+ if (IgnorablePeriod != sep) InsertHash(temp, IgnorablePeriod, TokenType.IgnorableSymbol, 0);
+
+ if (KoreanHourSuff != sep && CJKHourSuff != sep && ChineseHourSuff != sep)
+ {
+ //
+ // On the Macintosh, the default TimeSeparator is identical to the KoreanHourSuff, CJKHourSuff, or ChineseHourSuff for some cultures like
+ // ja-JP and ko-KR. In these cases having the same symbol inserted into the hash table with multiple TokenTypes causes undesirable
+ // DateTime.Parse behavior. For instance, the DateTimeFormatInfo.Tokenize() method might return SEP_DateOrOffset for KoreanHourSuff
+ // instead of SEP_HourSuff.
+ //
+ InsertHash(temp, this.TimeSeparator, TokenType.SEP_Time, 0);
+ }
+
+ InsertHash(temp, this.AMDesignator, TokenType.SEP_Am | TokenType.Am, 0);
+ InsertHash(temp, this.PMDesignator, TokenType.SEP_Pm | TokenType.Pm, 1);
+
+ // TODO: This ignores similar custom cultures
+ if (LanguageName.Equals("sq"))
+ {
+ // Albanian allows time formats like "12:00.PD"
+ InsertHash(temp, IgnorablePeriod + this.AMDesignator, TokenType.SEP_Am | TokenType.Am, 0);
+ InsertHash(temp, IgnorablePeriod + this.PMDesignator, TokenType.SEP_Pm | TokenType.Pm, 1);
+ }
+
+ // CJK suffix
+ InsertHash(temp, CJKYearSuff, TokenType.SEP_YearSuff, 0);
+ InsertHash(temp, KoreanYearSuff, TokenType.SEP_YearSuff, 0);
+ InsertHash(temp, CJKMonthSuff, TokenType.SEP_MonthSuff, 0);
+ InsertHash(temp, KoreanMonthSuff, TokenType.SEP_MonthSuff, 0);
+ InsertHash(temp, CJKDaySuff, TokenType.SEP_DaySuff, 0);
+ InsertHash(temp, KoreanDaySuff, TokenType.SEP_DaySuff, 0);
+
+ InsertHash(temp, CJKHourSuff, TokenType.SEP_HourSuff, 0);
+ InsertHash(temp, ChineseHourSuff, TokenType.SEP_HourSuff, 0);
+ InsertHash(temp, CJKMinuteSuff, TokenType.SEP_MinuteSuff, 0);
+ InsertHash(temp, CJKSecondSuff, TokenType.SEP_SecondSuff, 0);
+
+ // TODO: This ignores other custom cultures that might want to do something similar
+ if (koreanLanguage)
+ {
+ // Korean suffix
+ InsertHash(temp, KoreanHourSuff, TokenType.SEP_HourSuff, 0);
+ InsertHash(temp, KoreanMinuteSuff, TokenType.SEP_MinuteSuff, 0);
+ InsertHash(temp, KoreanSecondSuff, TokenType.SEP_SecondSuff, 0);
+ }
+
+ if (LanguageName.Equals("ky"))
+ {
+ // For some cultures, the date separator works more like a comma, being allowed before or after any date part
+ InsertHash(temp, dateSeparatorOrTimeZoneOffset, TokenType.IgnorableSymbol, 0);
+ }
+ else
+ {
+ InsertHash(temp, dateSeparatorOrTimeZoneOffset, TokenType.SEP_DateOrOffset, 0);
+ }
+
+ String[] dateWords = null;
+ DateTimeFormatInfoScanner scanner = null;
+
+ // We need to rescan the date words since we're always synthetic
+ scanner = new DateTimeFormatInfoScanner();
+ m_dateWords = dateWords = scanner.GetDateWordsOfDTFI(this);
+ // Ensure the formatflags is initialized.
+ DateTimeFormatFlags flag = FormatFlags;
+
+ // For some cultures, the date separator works more like a comma, being allowed before or after any date part.
+ // In these cultures, we do not use normal date separator since we disallow date separator after a date terminal state.
+ // This is determined in DateTimeFormatInfoScanner. Use this flag to determine if we should treat date separator as ignorable symbol.
+ bool useDateSepAsIgnorableSymbol = false;
+
+ String monthPostfix = null;
+ if (dateWords != null)
+ {
+ // There are DateWords. It could be a real date word (such as "de"), or a monthPostfix.
+ // The monthPostfix starts with '\xfffe' (MonthPostfixChar), followed by the real monthPostfix.
+ for (int i = 0; i < dateWords.Length; i++)
+ {
+ switch (dateWords[i][0])
+ {
+ // This is a month postfix
+ case DateTimeFormatInfoScanner.MonthPostfixChar:
+ // Get the real month postfix.
+ monthPostfix = dateWords[i].Substring(1);
+ // Add the month name + postfix into the token.
+ AddMonthNames(temp, monthPostfix);
+ break;
+ case DateTimeFormatInfoScanner.IgnorableSymbolChar:
+ String symbol = dateWords[i].Substring(1);
+ InsertHash(temp, symbol, TokenType.IgnorableSymbol, 0);
+ if (this.DateSeparator.Trim(null).Equals(symbol))
+ {
+ // The date separator is the same as the ignorable symbol.
+ useDateSepAsIgnorableSymbol = true;
+ }
+ break;
+ default:
+ InsertHash(temp, dateWords[i], TokenType.DateWordToken, 0);
+ // TODO: This ignores similar custom cultures
+ if (LanguageName.Equals("eu"))
+ {
+ // Basque has date words with leading dots
+ InsertHash(temp, IgnorablePeriod + dateWords[i], TokenType.DateWordToken, 0);
+ }
+ break;
+ }
+ }
+ }
+
+ if (!useDateSepAsIgnorableSymbol)
+ {
+ // Use the normal date separator.
+ InsertHash(temp, this.DateSeparator, TokenType.SEP_Date, 0);
+ }
+ // Add the regular month names.
+ AddMonthNames(temp, null);
+
+ // Add the abbreviated month names.
+ for (int i = 1; i <= 13; i++)
+ {
+ InsertHash(temp, GetAbbreviatedMonthName(i), TokenType.MonthToken, i);
+ }
+
+
+ if ((FormatFlags & DateTimeFormatFlags.UseGenitiveMonth) != 0)
+ {
+ for (int i = 1; i <= 13; i++)
+ {
+ String str;
+ str = internalGetMonthName(i, MonthNameStyles.Genitive, false);
+ InsertHash(temp, str, TokenType.MonthToken, i);
+ }
+ }
+
+ if ((FormatFlags & DateTimeFormatFlags.UseLeapYearMonth) != 0)
+ {
+ for (int i = 1; i <= 13; i++)
+ {
+ String str;
+ str = internalGetMonthName(i, MonthNameStyles.LeapYear, false);
+ InsertHash(temp, str, TokenType.MonthToken, i);
+ }
+ }
+
+ for (int i = 0; i < 7; i++)
+ {
+ //String str = GetDayOfWeekNames()[i];
+ // We have to call public methods here to work with inherited DTFI.
+ String str = GetDayName((DayOfWeek)i);
+ InsertHash(temp, str, TokenType.DayOfWeekToken, i);
+
+ str = GetAbbreviatedDayName((DayOfWeek)i);
+ InsertHash(temp, str, TokenType.DayOfWeekToken, i);
+ }
+
+ int[] eras = calendar.Eras;
+ for (int i = 1; i <= eras.Length; i++)
+ {
+ InsertHash(temp, GetEraName(i), TokenType.EraToken, i);
+ InsertHash(temp, GetAbbreviatedEraName(i), TokenType.EraToken, i);
+ }
+
+ // TODO: This ignores other cultures that might want to do something similar
+ if (LanguageName.Equals(JapaneseLangName))
+ {
+ // Japanese allows day of week forms like: "(Tue)"
+ for (int i = 0; i < 7; i++)
+ {
+ String specialDayOfWeek = "(" + GetAbbreviatedDayName((DayOfWeek)i) + ")";
+ InsertHash(temp, specialDayOfWeek, TokenType.DayOfWeekToken, i);
+ }
+ if (this.Calendar.GetType() != typeof(JapaneseCalendar))
+ {
+ // Special case for Japanese. If this is a Japanese DTFI, and the calendar is not Japanese calendar,
+ // we will check Japanese Era name as well when the calendar is Gregorian.
+ DateTimeFormatInfo jaDtfi = GetJapaneseCalendarDTFI();
+ for (int i = 1; i <= jaDtfi.Calendar.Eras.Length; i++)
+ {
+ InsertHash(temp, jaDtfi.GetEraName(i), TokenType.JapaneseEraToken, i);
+ InsertHash(temp, jaDtfi.GetAbbreviatedEraName(i), TokenType.JapaneseEraToken, i);
+ // m_abbrevEnglishEraNames[0] contains the name for era 1, so the token value is i+1.
+ InsertHash(temp, jaDtfi.AbbreviatedEnglishEraNames[i - 1], TokenType.JapaneseEraToken, i);
+ }
+ }
+ }
+ // TODO: This prohibits similar custom cultures, but we hard coded the name
+ else if (CultureName.Equals("zh-TW"))
+ {
+ DateTimeFormatInfo twDtfi = GetTaiwanCalendarDTFI();
+ for (int i = 1; i <= twDtfi.Calendar.Eras.Length; i++)
+ {
+ if (twDtfi.GetEraName(i).Length > 0)
+ {
+ InsertHash(temp, twDtfi.GetEraName(i), TokenType.TEraToken, i);
+ }
+ }
+ }
+
+ InsertHash(temp, InvariantInfo.AMDesignator, TokenType.SEP_Am | TokenType.Am, 0);
+ InsertHash(temp, InvariantInfo.PMDesignator, TokenType.SEP_Pm | TokenType.Pm, 1);
+
+ // Add invariant month names and day names.
+ for (int i = 1; i <= 12; i++)
+ {
+ String str;
+ // We have to call public methods here to work with inherited DTFI.
+ // Insert the month name first, so that they are at the front of abbrevaited
+ // month names.
+ str = InvariantInfo.GetMonthName(i);
+ InsertHash(temp, str, TokenType.MonthToken, i);
+ str = InvariantInfo.GetAbbreviatedMonthName(i);
+ InsertHash(temp, str, TokenType.MonthToken, i);
+ }
+
+ for (int i = 0; i < 7; i++)
+ {
+ // We have to call public methods here to work with inherited DTFI.
+ String str = InvariantInfo.GetDayName((DayOfWeek)i);
+ InsertHash(temp, str, TokenType.DayOfWeekToken, i);
+
+ str = InvariantInfo.GetAbbreviatedDayName((DayOfWeek)i);
+ InsertHash(temp, str, TokenType.DayOfWeekToken, i);
+ }
+
+ for (int i = 0; i < AbbreviatedEnglishEraNames.Length; i++)
+ {
+ // m_abbrevEnglishEraNames[0] contains the name for era 1, so the token value is i+1.
+ InsertHash(temp, AbbreviatedEnglishEraNames[i], TokenType.EraToken, i + 1);
+ }
+
+ InsertHash(temp, LocalTimeMark, TokenType.SEP_LocalTimeMark, 0);
+ InsertHash(temp, GMTName, TokenType.TimeZoneToken, 0);
+ InsertHash(temp, ZuluName, TokenType.TimeZoneToken, 0);
+
+ InsertHash(temp, invariantDateSeparator, TokenType.SEP_Date, 0);
+ InsertHash(temp, invariantTimeSeparator, TokenType.SEP_Time, 0);
+
+ _dtfiTokenHash = temp;
+ }
+ return (temp);
+ }
+
+ private void AddMonthNames(TokenHashValue[] temp, String monthPostfix)
+ {
+ for (int i = 1; i <= 13; i++)
+ {
+ String str;
+ //str = internalGetMonthName(i, MonthNameStyles.Regular, false);
+ // We have to call public methods here to work with inherited DTFI.
+ // Insert the month name first, so that they are at the front of abbrevaited
+ // month names.
+ str = GetMonthName(i);
+ if (str.Length > 0)
+ {
+ if (monthPostfix != null)
+ {
+ // Insert the month name with the postfix first, so it can be matched first.
+ InsertHash(temp, str + monthPostfix, TokenType.MonthToken, i);
+ }
+ else
+ {
+ InsertHash(temp, str, TokenType.MonthToken, i);
+ }
+ }
+ str = GetAbbreviatedMonthName(i);
+ InsertHash(temp, str, TokenType.MonthToken, i);
+ }
+ }
+
+ ////////////////////////////////////////////////////////////////////////
+ //
+ // Actions:
+ // Try to parse the current word to see if it is a Hebrew number.
+ // Tokens will be updated accordingly.
+ // This is called by the Lexer of DateTime.Parse().
+ //
+ // Unlike most of the functions in this class, the return value indicates
+ // whether or not it started to parse. The badFormat parameter indicates
+ // if parsing began, but the format was bad.
+ //
+ ////////////////////////////////////////////////////////////////////////
+
+ private static bool TryParseHebrewNumber(
+ ref __DTString str,
+ out Boolean badFormat,
+ out int number)
+ {
+ number = -1;
+ badFormat = false;
+
+ int i = str.Index;
+ if (!HebrewNumber.IsDigit(str.Value[i]))
+ {
+ // If the current character is not a Hebrew digit, just return false.
+ // There is no chance that we can parse a valid Hebrew number from here.
+ return (false);
+ }
+ // The current character is a Hebrew digit. Try to parse this word as a Hebrew number.
+ HebrewNumberParsingContext context = new HebrewNumberParsingContext(0);
+ HebrewNumberParsingState state;
+
+ do
+ {
+ state = HebrewNumber.ParseByChar(str.Value[i++], ref context);
+ switch (state)
+ {
+ case HebrewNumberParsingState.InvalidHebrewNumber: // Not a valid Hebrew number.
+ case HebrewNumberParsingState.NotHebrewDigit: // The current character is not a Hebrew digit character.
+ // Break out so that we don't continue to try parse this as a Hebrew number.
+ return (false);
+ }
+ } while (i < str.Value.Length && (state != HebrewNumberParsingState.FoundEndOfHebrewNumber));
+
+ // When we are here, we are either at the end of the string, or we find a valid Hebrew number.
+ Debug.Assert(state == HebrewNumberParsingState.ContinueParsing || state == HebrewNumberParsingState.FoundEndOfHebrewNumber,
+ "Invalid returned state from HebrewNumber.ParseByChar()");
+
+ if (state != HebrewNumberParsingState.FoundEndOfHebrewNumber)
+ {
+ // We reach end of the string but we can't find a terminal state in parsing Hebrew number.
+ return (false);
+ }
+
+ // We have found a valid Hebrew number. Update the index.
+ str.Advance(i - str.Index);
+
+ // Get the final Hebrew number value from the HebrewNumberParsingContext.
+ number = context.result;
+
+ return (true);
+ }
+
+ private static bool IsHebrewChar(char ch)
+ {
+ return (ch >= '\x0590' && ch <= '\x05ff');
+ }
+
+ internal bool Tokenize(TokenType TokenMask, out TokenType tokenType, out int tokenValue,
+ ref __DTString str)
+ {
+ tokenType = TokenType.UnknownToken;
+ tokenValue = 0;
+
+ TokenHashValue value;
+ Debug.Assert(str.Index < str.Value.Length, "DateTimeFormatInfo.Tokenize(): start < value.Length");
+
+ char ch = str.m_current;
+ bool isLetter = Char.IsLetter(ch);
+ if (isLetter)
+ {
+ ch = this.Culture.TextInfo.ToLower(ch);
+ if (IsHebrewChar(ch) && TokenMask == TokenType.RegularTokenMask)
+ {
+ bool badFormat;
+ if (TryParseHebrewNumber(ref str, out badFormat, out tokenValue))
+ {
+ if (badFormat)
+ {
+ tokenType = TokenType.UnknownToken;
+ return (false);
+ }
+ // This is a Hebrew number.
+ // Do nothing here. TryParseHebrewNumber() will update token accordingly.
+ tokenType = TokenType.HebrewNumber;
+ return (true);
+ }
+ }
+ }
+
+
+ int hashcode = ch % TOKEN_HASH_SIZE;
+ int hashProbe = 1 + ch % SECOND_PRIME;
+ int remaining = str.len - str.Index;
+ int i = 0;
+
+ TokenHashValue[] hashTable = _dtfiTokenHash;
+ if (hashTable == null)
+ {
+ hashTable = CreateTokenHashTable();
+ }
+ do
+ {
+ value = hashTable[hashcode];
+ if (value == null)
+ {
+ // Not found.
+ break;
+ }
+ // Check this value has the right category (regular token or separator token) that we are looking for.
+ if (((int)value.tokenType & (int)TokenMask) > 0 && value.tokenString.Length <= remaining)
+ {
+ bool compareStrings = true;
+ if (isLetter)
+ {
+ // If this token starts with a letter, make sure that we won't allow partial match. So you can't tokenize "MarchWed" separately.
+ // Also an optimization to avoid string comparison
+ int nextCharIndex = str.Index + value.tokenString.Length;
+ if (nextCharIndex > str.len)
+ {
+ compareStrings = false;
+ }
+ else if (nextCharIndex < str.len)
+ {
+ // Check word boundary. The next character should NOT be a letter.
+ char nextCh = str.Value[nextCharIndex];
+ compareStrings = !(Char.IsLetter(nextCh));
+ }
+ }
+ if (compareStrings && CompareStringIgnoreCaseOptimized(str.Value, str.Index, value.tokenString.Length, value.tokenString, 0, value.tokenString.Length))
+ {
+ tokenType = value.tokenType & TokenMask;
+ tokenValue = value.tokenValue;
+ str.Advance(value.tokenString.Length);
+ return (true);
+ }
+ else if ((value.tokenType == TokenType.MonthToken && HasSpacesInMonthNames) ||
+ (value.tokenType == TokenType.DayOfWeekToken && HasSpacesInDayNames))
+ {
+ // For month or day token, we will match the names which have spaces.
+ int matchStrLen = 0;
+ if (str.MatchSpecifiedWords(value.tokenString, true, ref matchStrLen))
+ {
+ tokenType = value.tokenType & TokenMask;
+ tokenValue = value.tokenValue;
+ str.Advance(matchStrLen);
+ return (true);
+ }
+ }
+ }
+ i++;
+ hashcode += hashProbe;
+ if (hashcode >= TOKEN_HASH_SIZE) hashcode -= TOKEN_HASH_SIZE;
+ } while (i < TOKEN_HASH_SIZE);
+
+ return (false);
+ }
+
+ private void InsertAtCurrentHashNode(TokenHashValue[] hashTable, String str, char ch, TokenType tokenType, int tokenValue, int pos, int hashcode, int hashProbe)
+ {
+ // Remember the current slot.
+ TokenHashValue previousNode = hashTable[hashcode];
+
+ //// Console.WriteLine(" Insert Key: {0} in {1}", str, slotToInsert);
+ // Insert the new node into the current slot.
+ hashTable[hashcode] = new TokenHashValue(str, tokenType, tokenValue); ;
+
+ while (++pos < TOKEN_HASH_SIZE)
+ {
+ hashcode += hashProbe;
+ if (hashcode >= TOKEN_HASH_SIZE) hashcode -= TOKEN_HASH_SIZE;
+ // Remember this slot
+ TokenHashValue temp = hashTable[hashcode];
+
+ if (temp != null && this.Culture.TextInfo.ToLower(temp.tokenString[0]) != ch)
+ {
+ continue;
+ }
+ // Put the previous slot into this slot.
+ hashTable[hashcode] = previousNode;
+ //// Console.WriteLine(" Move {0} to slot {1}", previousNode.tokenString, hashcode);
+ if (temp == null)
+ {
+ // Done
+ return;
+ }
+ previousNode = temp;
+ };
+ Debug.Assert(false, "The hashtable is full. This should not happen.");
+ }
+
+ private void InsertHash(TokenHashValue[] hashTable, String str, TokenType tokenType, int tokenValue)
+ {
+ // The month of the 13th month is allowed to be null, so make sure that we ignore null value here.
+ if (str == null || str.Length == 0)
+ {
+ return;
+ }
+ TokenHashValue value;
+ int i = 0;
+ // If there is whitespace characters in the beginning and end of the string, trim them since whitespaces are skipped by
+ // DateTime.Parse().
+ if (Char.IsWhiteSpace(str[0]) || Char.IsWhiteSpace(str[str.Length - 1]))
+ {
+ str = str.Trim(null); // Trim white space characters.
+ // Could have space for separators
+ if (str.Length == 0)
+ return;
+ }
+ char ch = this.Culture.TextInfo.ToLower(str[0]);
+ int hashcode = ch % TOKEN_HASH_SIZE;
+ int hashProbe = 1 + ch % SECOND_PRIME;
+ do
+ {
+ value = hashTable[hashcode];
+ if (value == null)
+ {
+ //// Console.WriteLine(" Put Key: {0} in {1}", str, hashcode);
+ hashTable[hashcode] = new TokenHashValue(str, tokenType, tokenValue);
+ return;
+ }
+ else
+ {
+ // Collision happens. Find another slot.
+ if (str.Length >= value.tokenString.Length)
+ {
+ // If there are two tokens with the same prefix, we have to make sure that the longer token should be at the front of
+ // the shorter ones.
+ if (this.CompareStringIgnoreCaseOptimized(str, 0, value.tokenString.Length, value.tokenString, 0, value.tokenString.Length))
+ {
+ if (str.Length > value.tokenString.Length)
+ {
+ // The str to be inserted has the same prefix as the current token, and str is longer.
+ // Insert str into this node, and shift every node behind it.
+ InsertAtCurrentHashNode(hashTable, str, ch, tokenType, tokenValue, i, hashcode, hashProbe);
+ return;
+ }
+ else
+ {
+ // Same token. If they have different types (regular token vs separator token). Add them.
+ // If we have the same regular token or separator token in the hash already, do NOT update the hash.
+ // Therefore, the order of inserting token is significant here regarding what tokenType will be kept in the hash.
+
+
+ //
+ // Check the current value of RegularToken (stored in the lower 8-bit of tokenType) , and insert the tokenType into the hash ONLY when we don't have a RegularToken yet.
+ // Also check the current value of SeparatorToken (stored in the upper 8-bit of token), and insert the tokenType into the hash ONLY when we don't have the SeparatorToken yet.
+ //
+
+ int nTokenType = (int)tokenType;
+ int nCurrentTokenTypeInHash = (int)value.tokenType;
+
+ //
+ // The folowing is the fix for the issue of throwing FormatException when "mar" is passed in string of the short date format dd/MMM/yyyy for es-MX
+ //
+
+ if (((nCurrentTokenTypeInHash & (int)TokenType.RegularTokenMask) == 0) && ((nTokenType & (int)TokenType.RegularTokenMask) != 0) ||
+ ((nCurrentTokenTypeInHash & (int)TokenType.SeparatorTokenMask) == 0) && ((nTokenType & (int)TokenType.SeparatorTokenMask) != 0))
+ {
+ value.tokenType |= tokenType;
+ if (tokenValue != 0)
+ {
+ value.tokenValue = tokenValue;
+ }
+ }
+ // The token to be inserted is already in the table. Skip it.
+ return;
+ }
+ }
+ }
+ }
+ //// Console.WriteLine(" COLLISION. Old Key: {0}, New Key: {1}", hashTable[hashcode].tokenString, str);
+ i++;
+ hashcode += hashProbe;
+ if (hashcode >= TOKEN_HASH_SIZE) hashcode -= TOKEN_HASH_SIZE;
+ } while (i < TOKEN_HASH_SIZE);
+ Debug.Assert(false, "The hashtable is full. This should not happen.");
+ }
+
+ private bool CompareStringIgnoreCaseOptimized(string string1, int offset1, int length1, string string2, int offset2, int length2)
+ {
+ // Optimize for one character cases which are common due to date and time separators (/ and :)
+ if (length1 == 1 && length2 == 1 && string1[offset1] == string2[offset2])
+ {
+ return true;
+ }
+
+ return (this.Culture.CompareInfo.Compare(string1, offset1, length1, string2, offset2, length2, CompareOptions.IgnoreCase) == 0);
+ }
+
+ // class DateTimeFormatInfo
+
+ internal class TokenHashValue
+ {
+ internal String tokenString;
+ internal TokenType tokenType;
+ internal int tokenValue;
+
+ internal TokenHashValue(String tokenString, TokenType tokenType, int tokenValue)
+ {
+ this.tokenString = tokenString;
+ this.tokenType = tokenType;
+ this.tokenValue = tokenValue;
+ }
+ }
+ }
+}
--- /dev/null
+// 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.
+
+////////////////////////////////////////////////////////////////////////////
+//
+//
+// Purpose: This class is called by DateTime to parse a date/time string.
+//
+////////////////////////////////////////////////////////////////////////////
+
+namespace System
+{
+ using System;
+ using System.Text;
+ using System.Globalization;
+ using System.Threading;
+ using System.Collections;
+ using System.Runtime.CompilerServices;
+ using System.Runtime.InteropServices;
+ using System.Runtime.Versioning;
+ using System.Security;
+ using System.Diagnostics;
+ using System.Diagnostics.Contracts;
+
+ ////////////////////////////////////////////////////////////////////////
+
+ //This class contains only static members
+
+ internal static
+ class DateTimeParse
+ {
+ internal const Int32 MaxDateTimeNumberDigits = 8;
+
+ internal delegate bool MatchNumberDelegate(ref __DTString str, int digitLen, out int result);
+
+ internal static MatchNumberDelegate m_hebrewNumberParser = new MatchNumberDelegate(DateTimeParse.MatchHebrewDigits);
+
+ internal static DateTime ParseExact(String s, String format, DateTimeFormatInfo dtfi, DateTimeStyles style)
+ {
+ DateTimeResult result = new DateTimeResult(); // The buffer to store the parsing result.
+ result.Init();
+ if (TryParseExact(s, format, dtfi, style, ref result))
+ {
+ return result.parsedDate;
+ }
+ else
+ {
+ throw GetDateTimeParseException(ref result);
+ }
+ }
+
+ internal static DateTime ParseExact(String s, String format, DateTimeFormatInfo dtfi, DateTimeStyles style, out TimeSpan offset)
+ {
+ DateTimeResult result = new DateTimeResult(); // The buffer to store the parsing result.
+ offset = TimeSpan.Zero;
+ result.Init();
+ result.flags |= ParseFlags.CaptureOffset;
+ if (TryParseExact(s, format, dtfi, style, ref result))
+ {
+ offset = result.timeZoneOffset;
+ return result.parsedDate;
+ }
+ else
+ {
+ throw GetDateTimeParseException(ref result);
+ }
+ }
+
+ internal static bool TryParseExact(String s, String format, DateTimeFormatInfo dtfi, DateTimeStyles style, out DateTime result)
+ {
+ result = DateTime.MinValue;
+ DateTimeResult resultData = new DateTimeResult(); // The buffer to store the parsing result.
+ resultData.Init();
+ if (TryParseExact(s, format, dtfi, style, ref resultData))
+ {
+ result = resultData.parsedDate;
+ return true;
+ }
+ return false;
+ }
+
+ internal static bool TryParseExact(String s, String format, DateTimeFormatInfo dtfi, DateTimeStyles style, out DateTime result, out TimeSpan offset)
+ {
+ result = DateTime.MinValue;
+ offset = TimeSpan.Zero;
+ DateTimeResult resultData = new DateTimeResult(); // The buffer to store the parsing result.
+ resultData.Init();
+ resultData.flags |= ParseFlags.CaptureOffset;
+ if (TryParseExact(s, format, dtfi, style, ref resultData))
+ {
+ result = resultData.parsedDate;
+ offset = resultData.timeZoneOffset;
+ return true;
+ }
+ return false;
+ }
+
+ internal static bool TryParseExact(String s, String format, DateTimeFormatInfo dtfi, DateTimeStyles style, ref DateTimeResult result)
+ {
+ if (s == null)
+ {
+ result.SetFailure(ParseFailureKind.ArgumentNull, "ArgumentNull_String", null, nameof(s));
+ return false;
+ }
+ if (format == null)
+ {
+ result.SetFailure(ParseFailureKind.ArgumentNull, "ArgumentNull_String", null, nameof(format));
+ return false;
+ }
+ if (s.Length == 0)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ if (format.Length == 0)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadFormatSpecifier", null);
+ return false;
+ }
+
+ Debug.Assert(dtfi != null, "dtfi == null");
+
+ return DoStrictParse(s, format, style, dtfi, ref result);
+ }
+
+ internal static DateTime ParseExactMultiple(String s, String[] formats,
+ DateTimeFormatInfo dtfi, DateTimeStyles style)
+ {
+ DateTimeResult result = new DateTimeResult(); // The buffer to store the parsing result.
+ result.Init();
+ if (TryParseExactMultiple(s, formats, dtfi, style, ref result))
+ {
+ return result.parsedDate;
+ }
+ else
+ {
+ throw GetDateTimeParseException(ref result);
+ }
+ }
+
+
+ internal static DateTime ParseExactMultiple(String s, String[] formats,
+ DateTimeFormatInfo dtfi, DateTimeStyles style, out TimeSpan offset)
+ {
+ DateTimeResult result = new DateTimeResult(); // The buffer to store the parsing result.
+ offset = TimeSpan.Zero;
+ result.Init();
+ result.flags |= ParseFlags.CaptureOffset;
+ if (TryParseExactMultiple(s, formats, dtfi, style, ref result))
+ {
+ offset = result.timeZoneOffset;
+ return result.parsedDate;
+ }
+ else
+ {
+ throw GetDateTimeParseException(ref result);
+ }
+ }
+
+ internal static bool TryParseExactMultiple(String s, String[] formats,
+ DateTimeFormatInfo dtfi, DateTimeStyles style, out DateTime result, out TimeSpan offset)
+ {
+ result = DateTime.MinValue;
+ offset = TimeSpan.Zero;
+ DateTimeResult resultData = new DateTimeResult(); // The buffer to store the parsing result.
+ resultData.Init();
+ resultData.flags |= ParseFlags.CaptureOffset;
+ if (TryParseExactMultiple(s, formats, dtfi, style, ref resultData))
+ {
+ result = resultData.parsedDate;
+ offset = resultData.timeZoneOffset;
+ return true;
+ }
+ return false;
+ }
+
+
+ internal static bool TryParseExactMultiple(String s, String[] formats,
+ DateTimeFormatInfo dtfi, DateTimeStyles style, out DateTime result)
+ {
+ result = DateTime.MinValue;
+ DateTimeResult resultData = new DateTimeResult(); // The buffer to store the parsing result.
+ resultData.Init();
+ if (TryParseExactMultiple(s, formats, dtfi, style, ref resultData))
+ {
+ result = resultData.parsedDate;
+ return true;
+ }
+ return false;
+ }
+
+ internal static bool TryParseExactMultiple(String s, String[] formats,
+ DateTimeFormatInfo dtfi, DateTimeStyles style, ref DateTimeResult result)
+ {
+ if (s == null)
+ {
+ result.SetFailure(ParseFailureKind.ArgumentNull, "ArgumentNull_String", null, nameof(s));
+ return false;
+ }
+ if (formats == null)
+ {
+ result.SetFailure(ParseFailureKind.ArgumentNull, "ArgumentNull_String", null, nameof(formats));
+ return false;
+ }
+
+ if (s.Length == 0)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ if (formats.Length == 0)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadFormatSpecifier", null);
+ return false;
+ }
+
+ Debug.Assert(dtfi != null, "dtfi == null");
+
+ //
+ // Do a loop through the provided formats and see if we can parse succesfully in
+ // one of the formats.
+ //
+ for (int i = 0; i < formats.Length; i++)
+ {
+ if (formats[i] == null || formats[i].Length == 0)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadFormatSpecifier", null);
+ return false;
+ }
+ // Create a new result each time to ensure the runs are independent. Carry through
+ // flags from the caller and return the result.
+ DateTimeResult innerResult = new DateTimeResult(); // The buffer to store the parsing result.
+ innerResult.Init();
+ innerResult.flags = result.flags;
+ if (TryParseExact(s, formats[i], dtfi, style, ref innerResult))
+ {
+ result.parsedDate = innerResult.parsedDate;
+ result.timeZoneOffset = innerResult.timeZoneOffset;
+ return (true);
+ }
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+
+ ////////////////////////////////////////////////////////////////////////////
+ // Date Token Types
+ //
+ // Following is the set of tokens that can be generated from a date
+ // string. Notice that the legal set of trailing separators have been
+ // folded in with the date number, and month name tokens. This set
+ // of tokens is chosen to reduce the number of date parse states.
+ //
+ ////////////////////////////////////////////////////////////////////////////
+
+ internal enum DTT : int
+ {
+ End = 0, // '\0'
+ NumEnd = 1, // Num[ ]*[\0]
+ NumAmpm = 2, // Num[ ]+AmPm
+ NumSpace = 3, // Num[ ]+^[Dsep|Tsep|'0\']
+ NumDatesep = 4, // Num[ ]*Dsep
+ NumTimesep = 5, // Num[ ]*Tsep
+ MonthEnd = 6, // Month[ ]*'\0'
+ MonthSpace = 7, // Month[ ]+^[Dsep|Tsep|'\0']
+ MonthDatesep = 8, // Month[ ]*Dsep
+ NumDatesuff = 9, // Month[ ]*DSuff
+ NumTimesuff = 10, // Month[ ]*TSuff
+ DayOfWeek = 11, // Day of week name
+ YearSpace = 12, // Year+^[Dsep|Tsep|'0\']
+ YearDateSep = 13, // Year+Dsep
+ YearEnd = 14, // Year+['\0']
+ TimeZone = 15, // timezone name
+ Era = 16, // era name
+ NumUTCTimeMark = 17, // Num + 'Z'
+ // When you add a new token which will be in the
+ // state table, add it after NumLocalTimeMark.
+ Unk = 18, // unknown
+ NumLocalTimeMark = 19, // Num + 'T'
+ Max = 20, // marker
+ }
+
+ internal enum TM
+ {
+ NotSet = -1,
+ AM = 0,
+ PM = 1,
+ }
+
+
+ ////////////////////////////////////////////////////////////////////////////
+ //
+ // DateTime parsing state enumeration (DS.*)
+ //
+ ////////////////////////////////////////////////////////////////////////////
+
+ internal enum DS
+ {
+ BEGIN = 0,
+ N = 1, // have one number
+ NN = 2, // have two numbers
+
+ // The following are known to be part of a date
+
+ D_Nd = 3, // date string: have number followed by date separator
+ D_NN = 4, // date string: have two numbers
+ D_NNd = 5, // date string: have two numbers followed by date separator
+
+ D_M = 6, // date string: have a month
+ D_MN = 7, // date string: have a month and a number
+ D_NM = 8, // date string: have a number and a month
+ D_MNd = 9, // date string: have a month and number followed by date separator
+ D_NDS = 10, // date string: have one number followed a date suffix.
+
+ D_Y = 11, // date string: have a year.
+ D_YN = 12, // date string: have a year and a number
+ D_YNd = 13, // date string: have a year and a number and a date separator
+ D_YM = 14, // date string: have a year and a month
+ D_YMd = 15, // date string: have a year and a month and a date separator
+ D_S = 16, // have numbers followed by a date suffix.
+ T_S = 17, // have numbers followed by a time suffix.
+
+ // The following are known to be part of a time
+
+ T_Nt = 18, // have num followed by time separator
+ T_NNt = 19, // have two numbers followed by time separator
+
+
+ ERROR = 20,
+
+ // The following are terminal states. These all have an action
+ // associated with them; and transition back to BEGIN.
+
+ DX_NN = 21, // day from two numbers
+ DX_NNN = 22, // day from three numbers
+ DX_MN = 23, // day from month and one number
+ DX_NM = 24, // day from month and one number
+ DX_MNN = 25, // day from month and two numbers
+ DX_DS = 26, // a set of date suffixed numbers.
+ DX_DSN = 27, // day from date suffixes and one number.
+ DX_NDS = 28, // day from one number and date suffixes .
+ DX_NNDS = 29, // day from one number and date suffixes .
+
+ DX_YNN = 30, // date string: have a year and two number
+ DX_YMN = 31, // date string: have a year, a month, and a number.
+ DX_YN = 32, // date string: have a year and one number
+ DX_YM = 33, // date string: have a year, a month.
+ TX_N = 34, // time from one number (must have ampm)
+ TX_NN = 35, // time from two numbers
+ TX_NNN = 36, // time from three numbers
+ TX_TS = 37, // a set of time suffixed numbers.
+ DX_NNY = 38,
+ }
+
+ ////////////////////////////////////////////////////////////////////////////
+ //
+ // NOTE: The following state machine table is dependent on the order of the
+ // DS and DTT enumerations.
+ //
+ // For each non terminal state, the following table defines the next state
+ // for each given date token type.
+ //
+ ////////////////////////////////////////////////////////////////////////////
+
+ // End NumEnd NumAmPm NumSpace NumDaySep NumTimesep MonthEnd MonthSpace MonthDSep NumDateSuff NumTimeSuff DayOfWeek YearSpace YearDateSep YearEnd TimeZone Era UTCTimeMark
+ private static DS[][] dateParsingStates = {
+// DS.BEGIN // DS.BEGIN
+new DS[] { DS.BEGIN, DS.ERROR, DS.TX_N, DS.N, DS.D_Nd, DS.T_Nt, DS.ERROR, DS.D_M, DS.D_M, DS.D_S, DS.T_S, DS.BEGIN, DS.D_Y, DS.D_Y, DS.ERROR, DS.BEGIN, DS.BEGIN, DS.ERROR},
+
+// DS.N // DS.N
+new DS[] { DS.ERROR, DS.DX_NN, DS.ERROR, DS.NN, DS.D_NNd, DS.ERROR, DS.DX_NM, DS.D_NM, DS.D_MNd, DS.D_NDS, DS.ERROR, DS.N, DS.D_YN, DS.D_YNd, DS.DX_YN, DS.N, DS.N, DS.ERROR},
+
+// DS.NN // DS.NN
+new DS[] { DS.DX_NN, DS.DX_NNN, DS.TX_N, DS.DX_NNN, DS.ERROR, DS.T_Nt, DS.DX_MNN, DS.DX_MNN, DS.ERROR, DS.ERROR, DS.T_S, DS.NN, DS.DX_NNY, DS.ERROR, DS.DX_NNY, DS.NN, DS.NN, DS.ERROR},
+
+// DS.D_Nd // DS.D_Nd
+new DS[] { DS.ERROR, DS.DX_NN, DS.ERROR, DS.D_NN, DS.D_NNd, DS.ERROR, DS.DX_NM, DS.D_MN, DS.D_MNd, DS.ERROR, DS.ERROR, DS.D_Nd, DS.D_YN, DS.D_YNd, DS.DX_YN, DS.ERROR, DS.D_Nd, DS.ERROR},
+
+// DS.D_NN // DS.D_NN
+new DS[] { DS.DX_NN, DS.DX_NNN, DS.TX_N, DS.DX_NNN, DS.ERROR, DS.T_Nt, DS.DX_MNN, DS.DX_MNN, DS.ERROR, DS.DX_DS, DS.T_S, DS.D_NN, DS.DX_NNY, DS.ERROR, DS.DX_NNY, DS.ERROR, DS.D_NN, DS.ERROR},
+
+// DS.D_NNd // DS.D_NNd
+new DS[] { DS.ERROR, DS.DX_NNN, DS.DX_NNN, DS.DX_NNN, DS.ERROR, DS.ERROR, DS.DX_MNN, DS.DX_MNN, DS.ERROR, DS.DX_DS, DS.ERROR, DS.D_NNd, DS.DX_NNY, DS.ERROR, DS.DX_NNY, DS.ERROR, DS.D_NNd, DS.ERROR},
+
+// DS.D_M // DS.D_M
+new DS[] { DS.ERROR, DS.DX_MN, DS.ERROR, DS.D_MN, DS.D_MNd, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_M, DS.D_YM, DS.D_YMd, DS.DX_YM, DS.ERROR, DS.D_M, DS.ERROR},
+
+// DS.D_MN // DS.D_MN
+new DS[] { DS.DX_MN, DS.DX_MNN, DS.DX_MNN, DS.DX_MNN, DS.ERROR, DS.T_Nt, DS.ERROR, DS.ERROR, DS.ERROR, DS.DX_DS, DS.T_S, DS.D_MN, DS.DX_YMN, DS.ERROR, DS.DX_YMN, DS.ERROR, DS.D_MN, DS.ERROR},
+
+// DS.D_NM // DS.D_NM
+new DS[] { DS.DX_NM, DS.DX_MNN, DS.DX_MNN, DS.DX_MNN, DS.ERROR, DS.T_Nt, DS.ERROR, DS.ERROR, DS.ERROR, DS.DX_DS, DS.T_S, DS.D_NM, DS.DX_YMN, DS.ERROR, DS.DX_YMN, DS.ERROR, DS.D_NM, DS.ERROR},
+
+// DS.D_MNd // DS.D_MNd
+new DS[] { DS.ERROR, DS.DX_MNN, DS.ERROR, DS.DX_MNN, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_MNd, DS.DX_YMN, DS.ERROR, DS.DX_YMN, DS.ERROR, DS.D_MNd, DS.ERROR},
+
+// DS.D_NDS, // DS.D_NDS,
+new DS[] { DS.DX_NDS,DS.DX_NNDS, DS.DX_NNDS, DS.DX_NNDS, DS.ERROR, DS.T_Nt, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_NDS, DS.T_S, DS.D_NDS, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_NDS, DS.ERROR},
+
+// DS.D_Y // DS.D_Y
+new DS[] { DS.ERROR, DS.DX_YN, DS.ERROR, DS.D_YN, DS.D_YNd, DS.ERROR, DS.DX_YM, DS.D_YM, DS.D_YMd, DS.D_YM, DS.ERROR, DS.D_Y, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_Y, DS.ERROR},
+
+// DS.D_YN // DS.D_YN
+new DS[] { DS.DX_YN, DS.DX_YNN, DS.DX_YNN, DS.DX_YNN, DS.ERROR, DS.ERROR, DS.DX_YMN, DS.DX_YMN, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_YN, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_YN, DS.ERROR},
+
+// DS.D_YNd // DS.D_YNd
+new DS[] { DS.ERROR, DS.DX_YNN, DS.DX_YNN, DS.DX_YNN, DS.ERROR, DS.ERROR, DS.DX_YMN, DS.DX_YMN, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_YN, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_YN, DS.ERROR},
+
+// DS.D_YM // DS.D_YM
+new DS[] { DS.DX_YM, DS.DX_YMN, DS.DX_YMN, DS.DX_YMN, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_YM, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_YM, DS.ERROR},
+
+// DS.D_YMd // DS.D_YMd
+new DS[] { DS.ERROR, DS.DX_YMN, DS.DX_YMN, DS.DX_YMN, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_YM, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_YM, DS.ERROR},
+
+// DS.D_S // DS.D_S
+new DS[] { DS.DX_DS, DS.DX_DSN, DS.TX_N, DS.T_Nt, DS.ERROR, DS.T_Nt, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_S, DS.T_S, DS.D_S, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_S, DS.ERROR},
+
+// DS.T_S // DS.T_S
+new DS[] { DS.TX_TS, DS.TX_TS, DS.TX_TS, DS.T_Nt, DS.D_Nd, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.D_S, DS.T_S, DS.T_S, DS.ERROR, DS.ERROR, DS.ERROR, DS.T_S, DS.T_S, DS.ERROR},
+
+// DS.T_Nt // DS.T_Nt
+new DS[] { DS.ERROR, DS.TX_NN, DS.TX_NN, DS.TX_NN, DS.ERROR, DS.T_NNt, DS.DX_NM, DS.D_NM, DS.ERROR, DS.ERROR, DS.T_S, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.T_Nt, DS.T_Nt, DS.TX_NN},
+
+// DS.T_NNt // DS.T_NNt
+new DS[] { DS.ERROR, DS.TX_NNN, DS.TX_NNN, DS.TX_NNN, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.ERROR, DS.T_S, DS.T_NNt, DS.ERROR, DS.ERROR, DS.ERROR, DS.T_NNt, DS.T_NNt, DS.TX_NNN},
+};
+ // End NumEnd NumAmPm NumSpace NumDaySep NumTimesep MonthEnd MonthSpace MonthDSep NumDateSuff NumTimeSuff DayOfWeek YearSpace YearDateSep YearEnd TimeZone Era UTCMark
+
+ internal const String GMTName = "GMT";
+ internal const String ZuluName = "Z";
+
+ //
+ // Search from the index of str at str.Index to see if the target string exists in the str.
+ //
+ private static bool MatchWord(ref __DTString str, String target)
+ {
+ int length = target.Length;
+ if (length > (str.Value.Length - str.Index))
+ {
+ return false;
+ }
+
+ if (str.CompareInfo.Compare(str.Value, str.Index, length,
+ target, 0, length, CompareOptions.IgnoreCase) != 0)
+ {
+ return (false);
+ }
+
+ int nextCharIndex = str.Index + target.Length;
+
+ if (nextCharIndex < str.Value.Length)
+ {
+ char nextCh = str.Value[nextCharIndex];
+ if (Char.IsLetter(nextCh))
+ {
+ return (false);
+ }
+ }
+ str.Index = nextCharIndex;
+ if (str.Index < str.len)
+ {
+ str.m_current = str.Value[str.Index];
+ }
+
+ return (true);
+ }
+
+
+ //
+ // Check the word at the current index to see if it matches GMT name or Zulu name.
+ //
+ private static bool GetTimeZoneName(ref __DTString str)
+ {
+ if (MatchWord(ref str, GMTName))
+ {
+ return (true);
+ }
+
+ if (MatchWord(ref str, ZuluName))
+ {
+ return (true);
+ }
+
+ return (false);
+ }
+
+ internal static bool IsDigit(char ch)
+ {
+ return (ch >= '0' && ch <= '9');
+ }
+
+
+ /*=================================ParseFraction==========================
+ **Action: Starting at the str.Index, which should be a decimal symbol.
+ ** if the current character is a digit, parse the remaining
+ ** numbers as fraction. For example, if the sub-string starting at str.Index is "123", then
+ ** the method will return 0.123
+ **Returns: The fraction number.
+ **Arguments:
+ ** str the parsing string
+ **Exceptions:
+ ============================================================================*/
+
+ private static bool ParseFraction(ref __DTString str, out double result)
+ {
+ result = 0;
+ double decimalBase = 0.1;
+ int digits = 0;
+ char ch;
+ while (str.GetNext()
+ && IsDigit(ch = str.m_current))
+ {
+ result += (ch - '0') * decimalBase;
+ decimalBase *= 0.1;
+ digits++;
+ }
+ return (digits > 0);
+ }
+
+ /*=================================ParseTimeZone==========================
+ **Action: Parse the timezone offset in the following format:
+ ** "+8", "+08", "+0800", "+0800"
+ ** This method is used by DateTime.Parse().
+ **Returns: The TimeZone offset.
+ **Arguments:
+ ** str the parsing string
+ **Exceptions:
+ ** FormatException if invalid timezone format is found.
+ ============================================================================*/
+
+ private static bool ParseTimeZone(ref __DTString str, ref TimeSpan result)
+ {
+ // The hour/minute offset for timezone.
+ int hourOffset = 0;
+ int minuteOffset = 0;
+ DTSubString sub;
+
+ // Consume the +/- character that has already been read
+ sub = str.GetSubString();
+ if (sub.length != 1)
+ {
+ return false;
+ }
+ char offsetChar = sub[0];
+ if (offsetChar != '+' && offsetChar != '-')
+ {
+ return false;
+ }
+ str.ConsumeSubString(sub);
+
+ sub = str.GetSubString();
+ if (sub.type != DTSubStringType.Number)
+ {
+ return false;
+ }
+ int value = sub.value;
+ int length = sub.length;
+ if (length == 1 || length == 2)
+ {
+ // Parsing "+8" or "+08"
+ hourOffset = value;
+ str.ConsumeSubString(sub);
+ // See if we have minutes
+ sub = str.GetSubString();
+ if (sub.length == 1 && sub[0] == ':')
+ {
+ // Parsing "+8:00" or "+08:00"
+ str.ConsumeSubString(sub);
+ sub = str.GetSubString();
+ if (sub.type != DTSubStringType.Number || sub.length < 1 || sub.length > 2)
+ {
+ return false;
+ }
+ minuteOffset = sub.value;
+ str.ConsumeSubString(sub);
+ }
+ }
+ else if (length == 3 || length == 4)
+ {
+ // Parsing "+800" or "+0800"
+ hourOffset = value / 100;
+ minuteOffset = value % 100;
+ str.ConsumeSubString(sub);
+ }
+ else
+ {
+ // Wrong number of digits
+ return false;
+ }
+ Debug.Assert(hourOffset >= 0 && hourOffset <= 99, "hourOffset >= 0 && hourOffset <= 99");
+ Debug.Assert(minuteOffset >= 0 && minuteOffset <= 99, "minuteOffset >= 0 && minuteOffset <= 99");
+ if (minuteOffset < 0 || minuteOffset >= 60)
+ {
+ return false;
+ }
+
+ result = new TimeSpan(hourOffset, minuteOffset, 0);
+ if (offsetChar == '-')
+ {
+ result = result.Negate();
+ }
+ return true;
+ }
+
+ // This is the helper function to handle timezone in string in the format like +/-0800
+ private static bool HandleTimeZone(ref __DTString str, ref DateTimeResult result)
+ {
+ if ((str.Index < str.len - 1))
+ {
+ char nextCh = str.Value[str.Index];
+ // Skip whitespace, but don't update the index unless we find a time zone marker
+ int whitespaceCount = 0;
+ while (Char.IsWhiteSpace(nextCh) && str.Index + whitespaceCount < str.len - 1)
+ {
+ whitespaceCount++;
+ nextCh = str.Value[str.Index + whitespaceCount];
+ }
+ if (nextCh == '+' || nextCh == '-')
+ {
+ str.Index += whitespaceCount;
+ if ((result.flags & ParseFlags.TimeZoneUsed) != 0)
+ {
+ // Should not have two timezone offsets.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ result.flags |= ParseFlags.TimeZoneUsed;
+ if (!ParseTimeZone(ref str, ref result.timeZoneOffset))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ }
+ }
+ return true;
+ }
+
+ //
+ // This is the lexer. Check the character at the current index, and put the found token in dtok and
+ // some raw date/time information in raw.
+ //
+ private static Boolean Lex(DS dps, ref __DTString str, ref DateTimeToken dtok, ref DateTimeRawInfo raw, ref DateTimeResult result, ref DateTimeFormatInfo dtfi, DateTimeStyles styles)
+ {
+ TokenType tokenType;
+ int tokenValue;
+ int indexBeforeSeparator;
+ char charBeforeSeparator;
+
+ TokenType sep;
+ dtok.dtt = DTT.Unk; // Assume the token is unkown.
+
+ str.GetRegularToken(out tokenType, out tokenValue, dtfi);
+
+#if _LOGGING
+ // Builds with _LOGGING defined (x86dbg, amd64chk, etc) support tracing
+ // Set the following internal-only/unsupported environment variables to enable DateTime tracing to the console:
+ //
+ // COMPlus_LogEnable=1
+ // COMPlus_LogToConsole=1
+ // COMPlus_LogLevel=9
+ // COMPlus_ManagedLogFacility=0x00001000
+ if (_tracingEnabled)
+ {
+ BCLDebug.Trace("DATETIME", "[DATETIME] Lex({0})\tpos:{1}({2}), {3}, DS.{4}", Hex(str.Value),
+ str.Index, Hex(str.m_current), tokenType, dps);
+ }
+#endif // _LOGGING
+
+ // Look at the regular token.
+ switch (tokenType)
+ {
+ case TokenType.NumberToken:
+ case TokenType.YearNumberToken:
+ if (raw.numCount == 3 || tokenValue == -1)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0010", dps);
+ return false;
+ }
+ //
+ // This is a digit.
+ //
+ // If the previous parsing state is DS.T_NNt (like 12:01), and we got another number,
+ // so we will have a terminal state DS.TX_NNN (like 12:01:02).
+ // If the previous parsing state is DS.T_Nt (like 12:), and we got another number,
+ // so we will have a terminal state DS.TX_NN (like 12:01).
+ //
+ // Look ahead to see if the following character is a decimal point or timezone offset.
+ // This enables us to parse time in the forms of:
+ // "11:22:33.1234" or "11:22:33-08".
+ if (dps == DS.T_NNt)
+ {
+ if ((str.Index < str.len - 1))
+ {
+ char nextCh = str.Value[str.Index];
+ if (nextCh == '.')
+ {
+ // While ParseFraction can fail, it just means that there were no digits after
+ // the dot. In this case ParseFraction just removes the dot. This is actually
+ // valid for cultures like Albanian, that join the time marker to the time with
+ // with a dot: e.g. "9:03.MD"
+ ParseFraction(ref str, out raw.fraction);
+ }
+ }
+ }
+ if (dps == DS.T_NNt || dps == DS.T_Nt)
+ {
+ if ((str.Index < str.len - 1))
+ {
+ if (false == HandleTimeZone(ref str, ref result))
+ {
+ LexTraceExit("0020 (value like \"12:01\" or \"12:\" followed by a non-TZ number", dps);
+ return false;
+ }
+ }
+ }
+
+ dtok.num = tokenValue;
+ if (tokenType == TokenType.YearNumberToken)
+ {
+ if (raw.year == -1)
+ {
+ raw.year = tokenValue;
+ //
+ // If we have number which has 3 or more digits (like "001" or "0001"),
+ // we assume this number is a year. Save the currnet raw.numCount in
+ // raw.year.
+ //
+ switch (sep = str.GetSeparatorToken(dtfi, out indexBeforeSeparator, out charBeforeSeparator))
+ {
+ case TokenType.SEP_End:
+ dtok.dtt = DTT.YearEnd;
+ break;
+ case TokenType.SEP_Am:
+ case TokenType.SEP_Pm:
+ if (raw.timeMark == TM.NotSet)
+ {
+ raw.timeMark = (sep == TokenType.SEP_Am ? TM.AM : TM.PM);
+ dtok.dtt = DTT.YearSpace;
+ }
+ else
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0030 (TM.AM/TM.PM Happened more than 1x)", dps);
+ }
+ break;
+ case TokenType.SEP_Space:
+ dtok.dtt = DTT.YearSpace;
+ break;
+ case TokenType.SEP_Date:
+ dtok.dtt = DTT.YearDateSep;
+ break;
+ case TokenType.SEP_Time:
+ if (!raw.hasSameDateAndTimeSeparators)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0040 (Invalid separator after number)", dps);
+ return false;
+ }
+
+ // we have the date and time separators are same and getting a year number, then change the token to YearDateSep as
+ // we are sure we are not parsing time.
+ dtok.dtt = DTT.YearDateSep;
+ break;
+ case TokenType.SEP_DateOrOffset:
+ // The separator is either a date separator or the start of a time zone offset. If the token will complete the date then
+ // process just the number and roll back the index so that the outer loop can attempt to parse the time zone offset.
+ if ((dateParsingStates[(int)dps][(int)DTT.YearDateSep] == DS.ERROR)
+ && (dateParsingStates[(int)dps][(int)DTT.YearSpace] > DS.ERROR))
+ {
+ str.Index = indexBeforeSeparator;
+ str.m_current = charBeforeSeparator;
+ dtok.dtt = DTT.YearSpace;
+ }
+ else
+ {
+ dtok.dtt = DTT.YearDateSep;
+ }
+ break;
+ case TokenType.SEP_YearSuff:
+ case TokenType.SEP_MonthSuff:
+ case TokenType.SEP_DaySuff:
+ dtok.dtt = DTT.NumDatesuff;
+ dtok.suffix = sep;
+ break;
+ case TokenType.SEP_HourSuff:
+ case TokenType.SEP_MinuteSuff:
+ case TokenType.SEP_SecondSuff:
+ dtok.dtt = DTT.NumTimesuff;
+ dtok.suffix = sep;
+ break;
+ default:
+ // Invalid separator after number number.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0040 (Invalid separator after number)", dps);
+ return false;
+ }
+ //
+ // Found the token already. Return now.
+ //
+ LexTraceExit("0050 (success)", dps);
+ return true;
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0060", dps);
+ return false;
+ }
+ switch (sep = str.GetSeparatorToken(dtfi, out indexBeforeSeparator, out charBeforeSeparator))
+ {
+ //
+ // Note here we check if the numCount is less than three.
+ // When we have more than three numbers, it will be caught as error in the state machine.
+ //
+ case TokenType.SEP_End:
+ dtok.dtt = DTT.NumEnd;
+ raw.AddNumber(dtok.num);
+ break;
+ case TokenType.SEP_Am:
+ case TokenType.SEP_Pm:
+ if (raw.timeMark == TM.NotSet)
+ {
+ raw.timeMark = (sep == TokenType.SEP_Am ? TM.AM : TM.PM);
+ dtok.dtt = DTT.NumAmpm;
+ // Fix AM/PM parsing case, e.g. "1/10 5 AM"
+ if (dps == DS.D_NN)
+ {
+ if (!ProcessTerminaltState(DS.DX_NN, ref result, ref styles, ref raw, dtfi))
+ {
+ return false;
+ }
+ }
+
+ raw.AddNumber(dtok.num);
+ }
+ else
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ break;
+ }
+ if (dps == DS.T_NNt || dps == DS.T_Nt)
+ {
+ if (false == HandleTimeZone(ref str, ref result))
+ {
+ LexTraceExit("0070 (HandleTimeZone returned false)", dps);
+ return false;
+ }
+ }
+ break;
+ case TokenType.SEP_Space:
+ dtok.dtt = DTT.NumSpace;
+ raw.AddNumber(dtok.num);
+ break;
+ case TokenType.SEP_Date:
+ dtok.dtt = DTT.NumDatesep;
+ raw.AddNumber(dtok.num);
+ break;
+ case TokenType.SEP_DateOrOffset:
+ // The separator is either a date separator or the start of a time zone offset. If the token will complete the date then
+ // process just the number and roll back the index so that the outer loop can attempt to parse the time zone offset.
+ if ((dateParsingStates[(int)dps][(int)DTT.NumDatesep] == DS.ERROR)
+ && (dateParsingStates[(int)dps][(int)DTT.NumSpace] > DS.ERROR))
+ {
+ str.Index = indexBeforeSeparator;
+ str.m_current = charBeforeSeparator;
+ dtok.dtt = DTT.NumSpace;
+ }
+ else
+ {
+ dtok.dtt = DTT.NumDatesep;
+ }
+ raw.AddNumber(dtok.num);
+ break;
+ case TokenType.SEP_Time:
+ if (raw.hasSameDateAndTimeSeparators &&
+ (dps == DS.D_Y || dps == DS.D_YN || dps == DS.D_YNd || dps == DS.D_YM || dps == DS.D_YMd))
+ {
+ // we are parsing a date and we have the time separator same as date separator, so we mark the token as date separator
+ dtok.dtt = DTT.NumDatesep;
+ raw.AddNumber(dtok.num);
+ break;
+ }
+ dtok.dtt = DTT.NumTimesep;
+ raw.AddNumber(dtok.num);
+ break;
+ case TokenType.SEP_YearSuff:
+ try
+ {
+ dtok.num = dtfi.Calendar.ToFourDigitYear(tokenValue);
+ }
+ catch (ArgumentOutOfRangeException e)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", e);
+ LexTraceExit("0075 (Calendar.ToFourDigitYear failed)", dps);
+ return false;
+ }
+ dtok.dtt = DTT.NumDatesuff;
+ dtok.suffix = sep;
+ break;
+ case TokenType.SEP_MonthSuff:
+ case TokenType.SEP_DaySuff:
+ dtok.dtt = DTT.NumDatesuff;
+ dtok.suffix = sep;
+ break;
+ case TokenType.SEP_HourSuff:
+ case TokenType.SEP_MinuteSuff:
+ case TokenType.SEP_SecondSuff:
+ dtok.dtt = DTT.NumTimesuff;
+ dtok.suffix = sep;
+ break;
+ case TokenType.SEP_LocalTimeMark:
+ dtok.dtt = DTT.NumLocalTimeMark;
+ raw.AddNumber(dtok.num);
+ break;
+ default:
+ // Invalid separator after number number.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0080", dps);
+ return false;
+ }
+ break;
+ case TokenType.HebrewNumber:
+ if (tokenValue >= 100)
+ {
+ // This is a year number
+ if (raw.year == -1)
+ {
+ raw.year = tokenValue;
+ //
+ // If we have number which has 3 or more digits (like "001" or "0001"),
+ // we assume this number is a year. Save the currnet raw.numCount in
+ // raw.year.
+ //
+ switch (sep = str.GetSeparatorToken(dtfi, out indexBeforeSeparator, out charBeforeSeparator))
+ {
+ case TokenType.SEP_End:
+ dtok.dtt = DTT.YearEnd;
+ break;
+ case TokenType.SEP_Space:
+ dtok.dtt = DTT.YearSpace;
+ break;
+ case TokenType.SEP_DateOrOffset:
+ // The separator is either a date separator or the start of a time zone offset. If the token will complete the date then
+ // process just the number and roll back the index so that the outer loop can attempt to parse the time zone offset.
+ if (dateParsingStates[(int)dps][(int)DTT.YearSpace] > DS.ERROR)
+ {
+ str.Index = indexBeforeSeparator;
+ str.m_current = charBeforeSeparator;
+ dtok.dtt = DTT.YearSpace;
+ break;
+ }
+ goto default;
+ default:
+ // Invalid separator after number number.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0090", dps);
+ return false;
+ }
+ }
+ else
+ {
+ // Invalid separator after number number.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0100", dps);
+ return false;
+ }
+ }
+ else
+ {
+ // This is a day number
+ dtok.num = tokenValue;
+ raw.AddNumber(dtok.num);
+
+ switch (sep = str.GetSeparatorToken(dtfi, out indexBeforeSeparator, out charBeforeSeparator))
+ {
+ //
+ // Note here we check if the numCount is less than three.
+ // When we have more than three numbers, it will be caught as error in the state machine.
+ //
+ case TokenType.SEP_End:
+ dtok.dtt = DTT.NumEnd;
+ break;
+ case TokenType.SEP_Space:
+ case TokenType.SEP_Date:
+ dtok.dtt = DTT.NumDatesep;
+ break;
+ case TokenType.SEP_DateOrOffset:
+ // The separator is either a date separator or the start of a time zone offset. If the token will complete the date then
+ // process just the number and roll back the index so that the outer loop can attempt to parse the time zone offset.
+ if ((dateParsingStates[(int)dps][(int)DTT.NumDatesep] == DS.ERROR)
+ && (dateParsingStates[(int)dps][(int)DTT.NumSpace] > DS.ERROR))
+ {
+ str.Index = indexBeforeSeparator;
+ str.m_current = charBeforeSeparator;
+ dtok.dtt = DTT.NumSpace;
+ }
+ else
+ {
+ dtok.dtt = DTT.NumDatesep;
+ }
+ break;
+ default:
+ // Invalid separator after number number.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0110", dps);
+ return false;
+ }
+ }
+ break;
+ case TokenType.DayOfWeekToken:
+ if (raw.dayOfWeek == -1)
+ {
+ //
+ // This is a day of week name.
+ //
+ raw.dayOfWeek = tokenValue;
+ dtok.dtt = DTT.DayOfWeek;
+ }
+ else
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0120 (DayOfWeek seen more than 1x)", dps);
+ return false;
+ }
+ break;
+ case TokenType.MonthToken:
+ if (raw.month == -1)
+ {
+ //
+ // This is a month name
+ //
+ switch (sep = str.GetSeparatorToken(dtfi, out indexBeforeSeparator, out charBeforeSeparator))
+ {
+ case TokenType.SEP_End:
+ dtok.dtt = DTT.MonthEnd;
+ break;
+ case TokenType.SEP_Space:
+ dtok.dtt = DTT.MonthSpace;
+ break;
+ case TokenType.SEP_Date:
+ dtok.dtt = DTT.MonthDatesep;
+ break;
+ case TokenType.SEP_Time:
+ if (!raw.hasSameDateAndTimeSeparators)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0130 (Invalid separator after month name)", dps);
+ return false;
+ }
+
+ // we have the date and time separators are same and getting a Month name, then change the token to MonthDatesep as
+ // we are sure we are not parsing time.
+ dtok.dtt = DTT.MonthDatesep;
+ break;
+ case TokenType.SEP_DateOrOffset:
+ // The separator is either a date separator or the start of a time zone offset. If the token will complete the date then
+ // process just the number and roll back the index so that the outer loop can attempt to parse the time zone offset.
+ if ((dateParsingStates[(int)dps][(int)DTT.MonthDatesep] == DS.ERROR)
+ && (dateParsingStates[(int)dps][(int)DTT.MonthSpace] > DS.ERROR))
+ {
+ str.Index = indexBeforeSeparator;
+ str.m_current = charBeforeSeparator;
+ dtok.dtt = DTT.MonthSpace;
+ }
+ else
+ {
+ dtok.dtt = DTT.MonthDatesep;
+ }
+ break;
+ default:
+ //Invalid separator after month name
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0130 (Invalid separator after month name)", dps);
+ return false;
+ }
+ raw.month = tokenValue;
+ }
+ else
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0140 (MonthToken seen more than 1x)", dps);
+ return false;
+ }
+ break;
+ case TokenType.EraToken:
+ if (result.era != -1)
+ {
+ result.era = tokenValue;
+ dtok.dtt = DTT.Era;
+ }
+ else
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0150 (EraToken seen when result.era already set)", dps);
+ return false;
+ }
+ break;
+ case TokenType.JapaneseEraToken:
+ // Special case for Japanese. We allow Japanese era name to be used even if the calendar is not Japanese Calendar.
+ result.calendar = JapaneseCalendar.GetDefaultInstance();
+ dtfi = DateTimeFormatInfo.GetJapaneseCalendarDTFI();
+ if (result.era != -1)
+ {
+ result.era = tokenValue;
+ dtok.dtt = DTT.Era;
+ }
+ else
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0160 (JapaneseEraToken seen when result.era already set)", dps);
+ return false;
+ }
+ break;
+ case TokenType.TEraToken:
+ result.calendar = TaiwanCalendar.GetDefaultInstance();
+ dtfi = DateTimeFormatInfo.GetTaiwanCalendarDTFI();
+ if (result.era != -1)
+ {
+ result.era = tokenValue;
+ dtok.dtt = DTT.Era;
+ }
+ else
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0170 (TEraToken seen when result.era already set)", dps);
+ return false;
+ }
+ break;
+ case TokenType.TimeZoneToken:
+ //
+ // This is a timezone designator
+ //
+ // NOTENOTE : for now, we only support "GMT" and "Z" (for Zulu time).
+ //
+ if ((result.flags & ParseFlags.TimeZoneUsed) != 0)
+ {
+ // Should not have two timezone offsets.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0180 (seen GMT or Z more than 1x)", dps);
+ return false;
+ }
+ dtok.dtt = DTT.TimeZone;
+ result.flags |= ParseFlags.TimeZoneUsed;
+ result.timeZoneOffset = new TimeSpan(0);
+ result.flags |= ParseFlags.TimeZoneUtc;
+ break;
+ case TokenType.EndOfString:
+ dtok.dtt = DTT.End;
+ break;
+ case TokenType.DateWordToken:
+ case TokenType.IgnorableSymbol:
+ // Date words and ignorable symbols can just be skipped over
+ break;
+ case TokenType.Am:
+ case TokenType.Pm:
+ if (raw.timeMark == TM.NotSet)
+ {
+ raw.timeMark = (TM)tokenValue;
+ }
+ else
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0190 (AM/PM timeMark already set)", dps);
+ return false;
+ }
+ break;
+ case TokenType.UnknownToken:
+ if (Char.IsLetter(str.m_current))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_UnknowDateTimeWord", str.Index);
+ LexTraceExit("0200", dps);
+ return (false);
+ }
+
+ if ((str.m_current == '-' || str.m_current == '+') && ((result.flags & ParseFlags.TimeZoneUsed) == 0))
+ {
+ Int32 originalIndex = str.Index;
+ if (ParseTimeZone(ref str, ref result.timeZoneOffset))
+ {
+ result.flags |= ParseFlags.TimeZoneUsed;
+ LexTraceExit("0220 (success)", dps);
+ return true;
+ }
+ else
+ {
+ // Time zone parse attempt failed. Fall through to punctuation handling.
+ str.Index = originalIndex;
+ }
+ }
+
+ // Visual Basic implements string to date conversions on top of DateTime.Parse:
+ // CDate("#10/10/95#")
+ //
+ if (VerifyValidPunctuation(ref str))
+ {
+ LexTraceExit("0230 (success)", dps);
+ return true;
+ }
+
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ LexTraceExit("0240", dps);
+ return false;
+ }
+
+ LexTraceExit("0250 (success)", dps);
+ return true;
+ }
+
+ private static Boolean VerifyValidPunctuation(ref __DTString str)
+ {
+ // Compatability Behavior. Allow trailing nulls and surrounding hashes
+ Char ch = str.Value[str.Index];
+ if (ch == '#')
+ {
+ bool foundStart = false;
+ bool foundEnd = false;
+ for (int i = 0; i < str.len; i++)
+ {
+ ch = str.Value[i];
+ if (ch == '#')
+ {
+ if (foundStart)
+ {
+ if (foundEnd)
+ {
+ // Having more than two hashes is invalid
+ return false;
+ }
+ else
+ {
+ foundEnd = true;
+ }
+ }
+ else
+ {
+ foundStart = true;
+ }
+ }
+ else if (ch == '\0')
+ {
+ // Allow nulls only at the end
+ if (!foundEnd)
+ {
+ return false;
+ }
+ }
+ else if ((!Char.IsWhiteSpace(ch)))
+ {
+ // Anthyhing other than whitespace outside hashes is invalid
+ if (!foundStart || foundEnd)
+ {
+ return false;
+ }
+ }
+ }
+ if (!foundEnd)
+ {
+ // The has was un-paired
+ return false;
+ }
+ // Valid Hash usage: eat the hash and continue.
+ str.GetNext();
+ return true;
+ }
+ else if (ch == '\0')
+ {
+ for (int i = str.Index; i < str.len; i++)
+ {
+ if (str.Value[i] != '\0')
+ {
+ // Nulls are only valid if they are the only trailing character
+ return false;
+ }
+ }
+ // Move to the end of the string
+ str.Index = str.len;
+ return true;
+ }
+ return false;
+ }
+
+ private const int ORDER_YMD = 0; // The order of date is Year/Month/Day.
+ private const int ORDER_MDY = 1; // The order of date is Month/Day/Year.
+ private const int ORDER_DMY = 2; // The order of date is Day/Month/Year.
+ private const int ORDER_YDM = 3; // The order of date is Year/Day/Month
+ private const int ORDER_YM = 4; // Year/Month order.
+ private const int ORDER_MY = 5; // Month/Year order.
+ private const int ORDER_MD = 6; // Month/Day order.
+ private const int ORDER_DM = 7; // Day/Month order.
+
+ //
+ // Decide the year/month/day order from the datePattern.
+ //
+ // Return 0 for YMD, 1 for MDY, 2 for DMY, otherwise -1.
+ //
+ private static Boolean GetYearMonthDayOrder(String datePattern, DateTimeFormatInfo dtfi, out int order)
+ {
+ int yearOrder = -1;
+ int monthOrder = -1;
+ int dayOrder = -1;
+ int orderCount = 0;
+
+ bool inQuote = false;
+
+ for (int i = 0; i < datePattern.Length && orderCount < 3; i++)
+ {
+ char ch = datePattern[i];
+ if (ch == '\\' || ch == '%')
+ {
+ i++;
+ continue; // Skip next character that is escaped by this backslash
+ }
+
+ if (ch == '\'' || ch == '"')
+ {
+ inQuote = !inQuote;
+ }
+
+ if (!inQuote)
+ {
+ if (ch == 'y')
+ {
+ yearOrder = orderCount++;
+
+ //
+ // Skip all year pattern charaters.
+ //
+ for (; i + 1 < datePattern.Length && datePattern[i + 1] == 'y'; i++)
+ {
+ // Do nothing here.
+ }
+ }
+ else if (ch == 'M')
+ {
+ monthOrder = orderCount++;
+ //
+ // Skip all month pattern characters.
+ //
+ for (; i + 1 < datePattern.Length && datePattern[i + 1] == 'M'; i++)
+ {
+ // Do nothing here.
+ }
+ }
+ else if (ch == 'd')
+ {
+ int patternCount = 1;
+ //
+ // Skip all day pattern characters.
+ //
+ for (; i + 1 < datePattern.Length && datePattern[i + 1] == 'd'; i++)
+ {
+ patternCount++;
+ }
+ //
+ // Make sure this is not "ddd" or "dddd", which means day of week.
+ //
+ if (patternCount <= 2)
+ {
+ dayOrder = orderCount++;
+ }
+ }
+ }
+ }
+
+ if (yearOrder == 0 && monthOrder == 1 && dayOrder == 2)
+ {
+ order = ORDER_YMD;
+ return true;
+ }
+ if (monthOrder == 0 && dayOrder == 1 && yearOrder == 2)
+ {
+ order = ORDER_MDY;
+ return true;
+ }
+ if (dayOrder == 0 && monthOrder == 1 && yearOrder == 2)
+ {
+ order = ORDER_DMY;
+ return true;
+ }
+ if (yearOrder == 0 && dayOrder == 1 && monthOrder == 2)
+ {
+ order = ORDER_YDM;
+ return true;
+ }
+ order = -1;
+ return false;
+ }
+
+ //
+ // Decide the year/month order from the pattern.
+ //
+ // Return 0 for YM, 1 for MY, otherwise -1.
+ //
+ private static Boolean GetYearMonthOrder(String pattern, DateTimeFormatInfo dtfi, out int order)
+ {
+ int yearOrder = -1;
+ int monthOrder = -1;
+ int orderCount = 0;
+
+ bool inQuote = false;
+ for (int i = 0; i < pattern.Length && orderCount < 2; i++)
+ {
+ char ch = pattern[i];
+ if (ch == '\\' || ch == '%')
+ {
+ i++;
+ continue; // Skip next character that is escaped by this backslash
+ }
+
+ if (ch == '\'' || ch == '"')
+ {
+ inQuote = !inQuote;
+ }
+
+ if (!inQuote)
+ {
+ if (ch == 'y')
+ {
+ yearOrder = orderCount++;
+
+ //
+ // Skip all year pattern charaters.
+ //
+ for (; i + 1 < pattern.Length && pattern[i + 1] == 'y'; i++)
+ {
+ }
+ }
+ else if (ch == 'M')
+ {
+ monthOrder = orderCount++;
+ //
+ // Skip all month pattern characters.
+ //
+ for (; i + 1 < pattern.Length && pattern[i + 1] == 'M'; i++)
+ {
+ }
+ }
+ }
+ }
+
+ if (yearOrder == 0 && monthOrder == 1)
+ {
+ order = ORDER_YM;
+ return true;
+ }
+ if (monthOrder == 0 && yearOrder == 1)
+ {
+ order = ORDER_MY;
+ return true;
+ }
+ order = -1;
+ return false;
+ }
+
+ //
+ // Decide the month/day order from the pattern.
+ //
+ // Return 0 for MD, 1 for DM, otherwise -1.
+ //
+ private static Boolean GetMonthDayOrder(String pattern, DateTimeFormatInfo dtfi, out int order)
+ {
+ int monthOrder = -1;
+ int dayOrder = -1;
+ int orderCount = 0;
+
+ bool inQuote = false;
+ for (int i = 0; i < pattern.Length && orderCount < 2; i++)
+ {
+ char ch = pattern[i];
+ if (ch == '\\' || ch == '%')
+ {
+ i++;
+ continue; // Skip next character that is escaped by this backslash
+ }
+
+ if (ch == '\'' || ch == '"')
+ {
+ inQuote = !inQuote;
+ }
+
+ if (!inQuote)
+ {
+ if (ch == 'd')
+ {
+ int patternCount = 1;
+ //
+ // Skip all day pattern charaters.
+ //
+ for (; i + 1 < pattern.Length && pattern[i + 1] == 'd'; i++)
+ {
+ patternCount++;
+ }
+
+ //
+ // Make sure this is not "ddd" or "dddd", which means day of week.
+ //
+ if (patternCount <= 2)
+ {
+ dayOrder = orderCount++;
+ }
+ }
+ else if (ch == 'M')
+ {
+ monthOrder = orderCount++;
+ //
+ // Skip all month pattern characters.
+ //
+ for (; i + 1 < pattern.Length && pattern[i + 1] == 'M'; i++)
+ {
+ }
+ }
+ }
+ }
+
+ if (monthOrder == 0 && dayOrder == 1)
+ {
+ order = ORDER_MD;
+ return true;
+ }
+ if (dayOrder == 0 && monthOrder == 1)
+ {
+ order = ORDER_DM;
+ return true;
+ }
+ order = -1;
+ return false;
+ }
+
+ //
+ // Adjust the two-digit year if necessary.
+ //
+ private static bool TryAdjustYear(ref DateTimeResult result, int year, out int adjustedYear)
+ {
+ if (year < 100)
+ {
+ try
+ {
+ // the Calendar classes need some real work. Many of the calendars that throw
+ // don't implement a fast/non-allocating (and non-throwing) IsValid{Year|Day|Month} method.
+ // we are making a targeted try/catch fix in the in-place release but will revisit this code
+ // in the next side-by-side release.
+ year = result.calendar.ToFourDigitYear(year);
+ }
+ catch (ArgumentOutOfRangeException)
+ {
+ adjustedYear = -1;
+ return false;
+ }
+ }
+ adjustedYear = year;
+ return true;
+ }
+
+ private static bool SetDateYMD(ref DateTimeResult result, int year, int month, int day)
+ {
+ // Note, longer term these checks should be done at the end of the parse. This current
+ // way of checking creates order dependence with parsing the era name.
+ if (result.calendar.IsValidDay(year, month, day, result.era))
+ {
+ result.SetDate(year, month, day); // YMD
+ return (true);
+ }
+ return (false);
+ }
+
+ private static bool SetDateMDY(ref DateTimeResult result, int month, int day, int year)
+ {
+ return (SetDateYMD(ref result, year, month, day));
+ }
+
+ private static bool SetDateDMY(ref DateTimeResult result, int day, int month, int year)
+ {
+ return (SetDateYMD(ref result, year, month, day));
+ }
+
+ private static bool SetDateYDM(ref DateTimeResult result, int year, int day, int month)
+ {
+ return (SetDateYMD(ref result, year, month, day));
+ }
+
+ private static void GetDefaultYear(ref DateTimeResult result, ref DateTimeStyles styles)
+ {
+ result.Year = result.calendar.GetYear(GetDateTimeNow(ref result, ref styles));
+ result.flags |= ParseFlags.YearDefault;
+ }
+
+ // Processing teriminal case: DS.DX_NN
+ private static Boolean GetDayOfNN(ref DateTimeResult result, ref DateTimeStyles styles, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ if ((result.flags & ParseFlags.HaveDate) != 0)
+ {
+ // Multiple dates in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ int n1 = raw.GetNumber(0);
+ int n2 = raw.GetNumber(1);
+
+ GetDefaultYear(ref result, ref styles);
+
+ int order;
+ if (!GetMonthDayOrder(dtfi.MonthDayPattern, dtfi, out order))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadDatePattern", dtfi.MonthDayPattern);
+ return false;
+ }
+
+ if (order == ORDER_MD)
+ {
+ if (SetDateYMD(ref result, result.Year, n1, n2)) // MD
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ }
+ else
+ {
+ // ORDER_DM
+ if (SetDateYMD(ref result, result.Year, n2, n1)) // DM
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ // Processing teriminal case: DS.DX_NNN
+ private static Boolean GetDayOfNNN(ref DateTimeResult result, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ if ((result.flags & ParseFlags.HaveDate) != 0)
+ {
+ // Multiple dates in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ int n1 = raw.GetNumber(0);
+ int n2 = raw.GetNumber(1); ;
+ int n3 = raw.GetNumber(2);
+
+ int order;
+ if (!GetYearMonthDayOrder(dtfi.ShortDatePattern, dtfi, out order))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadDatePattern", dtfi.ShortDatePattern);
+ return false;
+ }
+ int year;
+
+ if (order == ORDER_YMD)
+ {
+ if (TryAdjustYear(ref result, n1, out year) && SetDateYMD(ref result, year, n2, n3)) // YMD
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ }
+ else if (order == ORDER_MDY)
+ {
+ if (TryAdjustYear(ref result, n3, out year) && SetDateMDY(ref result, n1, n2, year)) // MDY
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ }
+ else if (order == ORDER_DMY)
+ {
+ if (TryAdjustYear(ref result, n3, out year) && SetDateDMY(ref result, n1, n2, year)) // DMY
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ }
+ else if (order == ORDER_YDM)
+ {
+ if (TryAdjustYear(ref result, n1, out year) && SetDateYDM(ref result, year, n2, n3)) // YDM
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ private static Boolean GetDayOfMN(ref DateTimeResult result, ref DateTimeStyles styles, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ if ((result.flags & ParseFlags.HaveDate) != 0)
+ {
+ // Multiple dates in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ // The interpretation is based on the MonthDayPattern and YearMonthPattern
+ //
+ // MonthDayPattern YearMonthPattern Interpretation
+ // --------------- ---------------- ---------------
+ // MMMM dd MMMM yyyy Day
+ // MMMM dd yyyy MMMM Day
+ // dd MMMM MMMM yyyy Year
+ // dd MMMM yyyy MMMM Day
+ //
+ // In the first and last cases, it could be either or neither, but a day is a better default interpretation
+ // than a 2 digit year.
+
+ int monthDayOrder;
+ if (!GetMonthDayOrder(dtfi.MonthDayPattern, dtfi, out monthDayOrder))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadDatePattern", dtfi.MonthDayPattern);
+ return false;
+ }
+ if (monthDayOrder == ORDER_DM)
+ {
+ int yearMonthOrder;
+ if (!GetYearMonthOrder(dtfi.YearMonthPattern, dtfi, out yearMonthOrder))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadDatePattern", dtfi.YearMonthPattern);
+ return false;
+ }
+ if (yearMonthOrder == ORDER_MY)
+ {
+ int year;
+ if (!TryAdjustYear(ref result, raw.GetNumber(0), out year) || !SetDateYMD(ref result, year, raw.month, 1))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ return true;
+ }
+ }
+
+ GetDefaultYear(ref result, ref styles);
+ if (!SetDateYMD(ref result, result.Year, raw.month, raw.GetNumber(0)))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ return true;
+ }
+
+ ////////////////////////////////////////////////////////////////////////
+ // Actions:
+ // Deal with the terminal state for Hebrew Month/Day pattern
+ //
+ ////////////////////////////////////////////////////////////////////////
+
+ private static Boolean GetHebrewDayOfNM(ref DateTimeResult result, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ int monthDayOrder;
+ if (!GetMonthDayOrder(dtfi.MonthDayPattern, dtfi, out monthDayOrder))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadDatePattern", dtfi.MonthDayPattern);
+ return false;
+ }
+ result.Month = raw.month;
+ if (monthDayOrder == ORDER_DM || monthDayOrder == ORDER_MD)
+ {
+ if (result.calendar.IsValidDay(result.Year, result.Month, raw.GetNumber(0), result.era))
+ {
+ result.Day = raw.GetNumber(0);
+ return true;
+ }
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ private static Boolean GetDayOfNM(ref DateTimeResult result, ref DateTimeStyles styles, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ if ((result.flags & ParseFlags.HaveDate) != 0)
+ {
+ // Multiple dates in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ // The interpretation is based on the MonthDayPattern and YearMonthPattern
+ //
+ // MonthDayPattern YearMonthPattern Interpretation
+ // --------------- ---------------- ---------------
+ // MMMM dd MMMM yyyy Day
+ // MMMM dd yyyy MMMM Year
+ // dd MMMM MMMM yyyy Day
+ // dd MMMM yyyy MMMM Day
+ //
+ // In the first and last cases, it could be either or neither, but a day is a better default interpretation
+ // than a 2 digit year.
+
+ int monthDayOrder;
+ if (!GetMonthDayOrder(dtfi.MonthDayPattern, dtfi, out monthDayOrder))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadDatePattern", dtfi.MonthDayPattern);
+ return false;
+ }
+ if (monthDayOrder == ORDER_MD)
+ {
+ int yearMonthOrder;
+ if (!GetYearMonthOrder(dtfi.YearMonthPattern, dtfi, out yearMonthOrder))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadDatePattern", dtfi.YearMonthPattern);
+ return false;
+ }
+ if (yearMonthOrder == ORDER_YM)
+ {
+ int year;
+ if (!TryAdjustYear(ref result, raw.GetNumber(0), out year) || !SetDateYMD(ref result, year, raw.month, 1))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ return true;
+ }
+ }
+
+ GetDefaultYear(ref result, ref styles);
+ if (!SetDateYMD(ref result, result.Year, raw.month, raw.GetNumber(0)))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ return true;
+ }
+
+ private static Boolean GetDayOfMNN(ref DateTimeResult result, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ if ((result.flags & ParseFlags.HaveDate) != 0)
+ {
+ // Multiple dates in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ int n1 = raw.GetNumber(0);
+ int n2 = raw.GetNumber(1);
+
+ int order;
+ if (!GetYearMonthDayOrder(dtfi.ShortDatePattern, dtfi, out order))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadDatePattern", dtfi.ShortDatePattern);
+ return false;
+ }
+ int year;
+
+ if (order == ORDER_MDY)
+ {
+ if (TryAdjustYear(ref result, n2, out year) && result.calendar.IsValidDay(year, raw.month, n1, result.era))
+ {
+ result.SetDate(year, raw.month, n1); // MDY
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ else if (TryAdjustYear(ref result, n1, out year) && result.calendar.IsValidDay(year, raw.month, n2, result.era))
+ {
+ result.SetDate(year, raw.month, n2); // YMD
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ }
+ else if (order == ORDER_YMD)
+ {
+ if (TryAdjustYear(ref result, n1, out year) && result.calendar.IsValidDay(year, raw.month, n2, result.era))
+ {
+ result.SetDate(year, raw.month, n2); // YMD
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ else if (TryAdjustYear(ref result, n2, out year) && result.calendar.IsValidDay(year, raw.month, n1, result.era))
+ {
+ result.SetDate(year, raw.month, n1); // DMY
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ }
+ else if (order == ORDER_DMY)
+ {
+ if (TryAdjustYear(ref result, n2, out year) && result.calendar.IsValidDay(year, raw.month, n1, result.era))
+ {
+ result.SetDate(year, raw.month, n1); // DMY
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ else if (TryAdjustYear(ref result, n1, out year) && result.calendar.IsValidDay(year, raw.month, n2, result.era))
+ {
+ result.SetDate(year, raw.month, n2); // YMD
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ }
+
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ private static Boolean GetDayOfYNN(ref DateTimeResult result, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ if ((result.flags & ParseFlags.HaveDate) != 0)
+ {
+ // Multiple dates in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ int n1 = raw.GetNumber(0);
+ int n2 = raw.GetNumber(1);
+ String pattern = dtfi.ShortDatePattern;
+
+ // For compatibility, don't throw if we can't determine the order, but default to YMD instead
+ int order;
+ if (GetYearMonthDayOrder(pattern, dtfi, out order) && order == ORDER_YDM)
+ {
+ if (SetDateYMD(ref result, raw.year, n2, n1))
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true; // Year + DM
+ }
+ }
+ else
+ {
+ if (SetDateYMD(ref result, raw.year, n1, n2))
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true; // Year + MD
+ }
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ private static Boolean GetDayOfNNY(ref DateTimeResult result, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ if ((result.flags & ParseFlags.HaveDate) != 0)
+ {
+ // Multiple dates in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ int n1 = raw.GetNumber(0);
+ int n2 = raw.GetNumber(1);
+
+ int order;
+ if (!GetYearMonthDayOrder(dtfi.ShortDatePattern, dtfi, out order))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadDatePattern", dtfi.ShortDatePattern);
+ return false;
+ }
+
+ if (order == ORDER_MDY || order == ORDER_YMD)
+ {
+ if (SetDateYMD(ref result, raw.year, n1, n2))
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true; // MD + Year
+ }
+ }
+ else
+ {
+ if (SetDateYMD(ref result, raw.year, n2, n1))
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true; // DM + Year
+ }
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+
+ private static Boolean GetDayOfYMN(ref DateTimeResult result, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ if ((result.flags & ParseFlags.HaveDate) != 0)
+ {
+ // Multiple dates in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ if (SetDateYMD(ref result, raw.year, raw.month, raw.GetNumber(0)))
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ private static Boolean GetDayOfYN(ref DateTimeResult result, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ if ((result.flags & ParseFlags.HaveDate) != 0)
+ {
+ // Multiple dates in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ if (SetDateYMD(ref result, raw.year, raw.GetNumber(0), 1))
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ private static Boolean GetDayOfYM(ref DateTimeResult result, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ if ((result.flags & ParseFlags.HaveDate) != 0)
+ {
+ // Multiple dates in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ if (SetDateYMD(ref result, raw.year, raw.month, 1))
+ {
+ result.flags |= ParseFlags.HaveDate;
+ return true;
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ private static void AdjustTimeMark(DateTimeFormatInfo dtfi, ref DateTimeRawInfo raw)
+ {
+ // Specail case for culture which uses AM as empty string.
+ // E.g. af-ZA (0x0436)
+ // S1159 \x0000
+ // S2359 nm
+ // In this case, if we are parsing a string like "2005/09/14 12:23", we will assume this is in AM.
+
+ if (raw.timeMark == TM.NotSet)
+ {
+ if (dtfi.AMDesignator != null && dtfi.PMDesignator != null)
+ {
+ if (dtfi.AMDesignator.Length == 0 && dtfi.PMDesignator.Length != 0)
+ {
+ raw.timeMark = TM.AM;
+ }
+ if (dtfi.PMDesignator.Length == 0 && dtfi.AMDesignator.Length != 0)
+ {
+ raw.timeMark = TM.PM;
+ }
+ }
+ }
+ }
+
+ //
+ // Adjust hour according to the time mark.
+ //
+ private static Boolean AdjustHour(ref int hour, TM timeMark)
+ {
+ if (timeMark != TM.NotSet)
+ {
+ if (timeMark == TM.AM)
+ {
+ if (hour < 0 || hour > 12)
+ {
+ return false;
+ }
+ hour = (hour == 12) ? 0 : hour;
+ }
+ else
+ {
+ if (hour < 0 || hour > 23)
+ {
+ return false;
+ }
+ if (hour < 12)
+ {
+ hour += 12;
+ }
+ }
+ }
+ return true;
+ }
+
+ private static Boolean GetTimeOfN(DateTimeFormatInfo dtfi, ref DateTimeResult result, ref DateTimeRawInfo raw)
+ {
+ if ((result.flags & ParseFlags.HaveTime) != 0)
+ {
+ // Multiple times in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ //
+ // In this case, we need a time mark. Check if so.
+ //
+ if (raw.timeMark == TM.NotSet)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ result.Hour = raw.GetNumber(0);
+ result.flags |= ParseFlags.HaveTime;
+ return true;
+ }
+
+ private static Boolean GetTimeOfNN(DateTimeFormatInfo dtfi, ref DateTimeResult result, ref DateTimeRawInfo raw)
+ {
+ Debug.Assert(raw.numCount >= 2, "raw.numCount >= 2");
+ if ((result.flags & ParseFlags.HaveTime) != 0)
+ {
+ // Multiple times in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ result.Hour = raw.GetNumber(0);
+ result.Minute = raw.GetNumber(1);
+ result.flags |= ParseFlags.HaveTime;
+ return true;
+ }
+
+ private static Boolean GetTimeOfNNN(DateTimeFormatInfo dtfi, ref DateTimeResult result, ref DateTimeRawInfo raw)
+ {
+ if ((result.flags & ParseFlags.HaveTime) != 0)
+ {
+ // Multiple times in the input string
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ Debug.Assert(raw.numCount >= 3, "raw.numCount >= 3");
+ result.Hour = raw.GetNumber(0);
+ result.Minute = raw.GetNumber(1);
+ result.Second = raw.GetNumber(2);
+ result.flags |= ParseFlags.HaveTime;
+ return true;
+ }
+
+ //
+ // Processing terminal state: A Date suffix followed by one number.
+ //
+ private static Boolean GetDateOfDSN(ref DateTimeResult result, ref DateTimeRawInfo raw)
+ {
+ if (raw.numCount != 1 || result.Day != -1)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ result.Day = raw.GetNumber(0);
+ return true;
+ }
+
+ private static Boolean GetDateOfNDS(ref DateTimeResult result, ref DateTimeRawInfo raw)
+ {
+ if (result.Month == -1)
+ {
+ //Should have a month suffix
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ if (result.Year != -1)
+ {
+ // Aleady has a year suffix
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ if (!TryAdjustYear(ref result, raw.GetNumber(0), out result.Year))
+ {
+ // the year value is out of range
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ result.Day = 1;
+ return true;
+ }
+
+ private static Boolean GetDateOfNNDS(ref DateTimeResult result, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ // For partial CJK Dates, the only valid formats are with a specified year, followed by two numbers, which
+ // will be the Month and Day, and with a specified Month, when the numbers are either the year and day or
+ // day and year, depending on the short date pattern.
+
+ if ((result.flags & ParseFlags.HaveYear) != 0)
+ {
+ if (((result.flags & ParseFlags.HaveMonth) == 0) && ((result.flags & ParseFlags.HaveDay) == 0))
+ {
+ if (TryAdjustYear(ref result, raw.year, out result.Year) && SetDateYMD(ref result, result.Year, raw.GetNumber(0), raw.GetNumber(1)))
+ {
+ return true;
+ }
+ }
+ }
+ else if ((result.flags & ParseFlags.HaveMonth) != 0)
+ {
+ if (((result.flags & ParseFlags.HaveYear) == 0) && ((result.flags & ParseFlags.HaveDay) == 0))
+ {
+ int order;
+ if (!GetYearMonthDayOrder(dtfi.ShortDatePattern, dtfi, out order))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadDatePattern", dtfi.ShortDatePattern);
+ return false;
+ }
+ int year;
+ if (order == ORDER_YMD)
+ {
+ if (TryAdjustYear(ref result, raw.GetNumber(0), out year) && SetDateYMD(ref result, year, result.Month, raw.GetNumber(1)))
+ {
+ return true;
+ }
+ }
+ else
+ {
+ if (TryAdjustYear(ref result, raw.GetNumber(1), out year) && SetDateYMD(ref result, year, result.Month, raw.GetNumber(0)))
+ {
+ return true;
+ }
+ }
+ }
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ //
+ // A date suffix is found, use this method to put the number into the result.
+ //
+ private static bool ProcessDateTimeSuffix(ref DateTimeResult result, ref DateTimeRawInfo raw, ref DateTimeToken dtok)
+ {
+ switch (dtok.suffix)
+ {
+ case TokenType.SEP_YearSuff:
+ if ((result.flags & ParseFlags.HaveYear) != 0)
+ {
+ return false;
+ }
+ result.flags |= ParseFlags.HaveYear;
+ result.Year = raw.year = dtok.num;
+ break;
+ case TokenType.SEP_MonthSuff:
+ if ((result.flags & ParseFlags.HaveMonth) != 0)
+ {
+ return false;
+ }
+ result.flags |= ParseFlags.HaveMonth;
+ result.Month = raw.month = dtok.num;
+ break;
+ case TokenType.SEP_DaySuff:
+ if ((result.flags & ParseFlags.HaveDay) != 0)
+ {
+ return false;
+ }
+ result.flags |= ParseFlags.HaveDay;
+ result.Day = dtok.num;
+ break;
+ case TokenType.SEP_HourSuff:
+ if ((result.flags & ParseFlags.HaveHour) != 0)
+ {
+ return false;
+ }
+ result.flags |= ParseFlags.HaveHour;
+ result.Hour = dtok.num;
+ break;
+ case TokenType.SEP_MinuteSuff:
+ if ((result.flags & ParseFlags.HaveMinute) != 0)
+ {
+ return false;
+ }
+ result.flags |= ParseFlags.HaveMinute;
+ result.Minute = dtok.num;
+ break;
+ case TokenType.SEP_SecondSuff:
+ if ((result.flags & ParseFlags.HaveSecond) != 0)
+ {
+ return false;
+ }
+ result.flags |= ParseFlags.HaveSecond;
+ result.Second = dtok.num;
+ break;
+ }
+ return true;
+ }
+
+ ////////////////////////////////////////////////////////////////////////
+ //
+ // Actions:
+ // This is used by DateTime.Parse().
+ // Process the terminal state for the Hebrew calendar parsing.
+ //
+ ////////////////////////////////////////////////////////////////////////
+
+ internal static Boolean ProcessHebrewTerminalState(DS dps, ref DateTimeResult result, ref DateTimeStyles styles, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ // The following are accepted terminal state for Hebrew date.
+ switch (dps)
+ {
+ case DS.DX_MNN:
+ // Deal with the default long/short date format when the year number is ambigous (i.e. year < 100).
+ raw.year = raw.GetNumber(1);
+ if (!dtfi.YearMonthAdjustment(ref raw.year, ref raw.month, true))
+ {
+ result.SetFailure(ParseFailureKind.FormatBadDateTimeCalendar, "Format_BadDateTimeCalendar", null);
+ return false;
+ }
+ if (!GetDayOfMNN(ref result, ref raw, dtfi))
+ {
+ return false;
+ }
+ break;
+ case DS.DX_YMN:
+ // Deal with the default long/short date format when the year number is NOT ambigous (i.e. year >= 100).
+ if (!dtfi.YearMonthAdjustment(ref raw.year, ref raw.month, true))
+ {
+ result.SetFailure(ParseFailureKind.FormatBadDateTimeCalendar, "Format_BadDateTimeCalendar", null);
+ return false;
+ }
+ if (!GetDayOfYMN(ref result, ref raw, dtfi))
+ {
+ return false;
+ }
+ break;
+ case DS.DX_NM:
+ case DS.DX_MN:
+ // Deal with Month/Day pattern.
+ GetDefaultYear(ref result, ref styles);
+ if (!dtfi.YearMonthAdjustment(ref result.Year, ref raw.month, true))
+ {
+ result.SetFailure(ParseFailureKind.FormatBadDateTimeCalendar, "Format_BadDateTimeCalendar", null);
+ return false;
+ }
+ if (!GetHebrewDayOfNM(ref result, ref raw, dtfi))
+ {
+ return false;
+ }
+ break;
+ case DS.DX_YM:
+ // Deal with Year/Month pattern.
+ if (!dtfi.YearMonthAdjustment(ref raw.year, ref raw.month, true))
+ {
+ result.SetFailure(ParseFailureKind.FormatBadDateTimeCalendar, "Format_BadDateTimeCalendar", null);
+ return false;
+ }
+ if (!GetDayOfYM(ref result, ref raw, dtfi))
+ {
+ return false;
+ }
+ break;
+ case DS.TX_N:
+ // Deal hour + AM/PM
+ if (!GetTimeOfN(dtfi, ref result, ref raw))
+ {
+ return false;
+ }
+ break;
+ case DS.TX_NN:
+ if (!GetTimeOfNN(dtfi, ref result, ref raw))
+ {
+ return false;
+ }
+ break;
+ case DS.TX_NNN:
+ if (!GetTimeOfNNN(dtfi, ref result, ref raw))
+ {
+ return false;
+ }
+ break;
+ default:
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ if (dps > DS.ERROR)
+ {
+ //
+ // We have reached a terminal state. Reset the raw num count.
+ //
+ raw.numCount = 0;
+ }
+ return true;
+ }
+
+ //
+ // A terminal state has been reached, call the appropriate function to fill in the parsing result.
+ // Return true if the state is a terminal state.
+ //
+ internal static Boolean ProcessTerminaltState(DS dps, ref DateTimeResult result, ref DateTimeStyles styles, ref DateTimeRawInfo raw, DateTimeFormatInfo dtfi)
+ {
+ bool passed = true;
+ switch (dps)
+ {
+ case DS.DX_NN:
+ passed = GetDayOfNN(ref result, ref styles, ref raw, dtfi);
+ break;
+ case DS.DX_NNN:
+ passed = GetDayOfNNN(ref result, ref raw, dtfi);
+ break;
+ case DS.DX_MN:
+ passed = GetDayOfMN(ref result, ref styles, ref raw, dtfi);
+ break;
+ case DS.DX_NM:
+ passed = GetDayOfNM(ref result, ref styles, ref raw, dtfi);
+ break;
+ case DS.DX_MNN:
+ passed = GetDayOfMNN(ref result, ref raw, dtfi);
+ break;
+ case DS.DX_DS:
+ // The result has got the correct value. No need to process.
+ passed = true;
+ break;
+ case DS.DX_YNN:
+ passed = GetDayOfYNN(ref result, ref raw, dtfi);
+ break;
+ case DS.DX_NNY:
+ passed = GetDayOfNNY(ref result, ref raw, dtfi);
+ break;
+ case DS.DX_YMN:
+ passed = GetDayOfYMN(ref result, ref raw, dtfi);
+ break;
+ case DS.DX_YN:
+ passed = GetDayOfYN(ref result, ref raw, dtfi);
+ break;
+ case DS.DX_YM:
+ passed = GetDayOfYM(ref result, ref raw, dtfi);
+ break;
+ case DS.TX_N:
+ passed = GetTimeOfN(dtfi, ref result, ref raw);
+ break;
+ case DS.TX_NN:
+ passed = GetTimeOfNN(dtfi, ref result, ref raw);
+ break;
+ case DS.TX_NNN:
+ passed = GetTimeOfNNN(dtfi, ref result, ref raw);
+ break;
+ case DS.TX_TS:
+ // The result has got the correct value. Nothing to do.
+ passed = true;
+ break;
+ case DS.DX_DSN:
+ passed = GetDateOfDSN(ref result, ref raw);
+ break;
+ case DS.DX_NDS:
+ passed = GetDateOfNDS(ref result, ref raw);
+ break;
+ case DS.DX_NNDS:
+ passed = GetDateOfNNDS(ref result, ref raw, dtfi);
+ break;
+ }
+
+ PTSTraceExit(dps, passed);
+ if (!passed)
+ {
+ return false;
+ }
+
+ if (dps > DS.ERROR)
+ {
+ //
+ // We have reached a terminal state. Reset the raw num count.
+ //
+ raw.numCount = 0;
+ }
+ return true;
+ }
+
+ internal static DateTime Parse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles)
+ {
+ DateTimeResult result = new DateTimeResult(); // The buffer to store the parsing result.
+ result.Init();
+ if (TryParse(s, dtfi, styles, ref result))
+ {
+ return result.parsedDate;
+ }
+ else
+ {
+ throw GetDateTimeParseException(ref result);
+ }
+ }
+
+ internal static DateTime Parse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles, out TimeSpan offset)
+ {
+ DateTimeResult result = new DateTimeResult(); // The buffer to store the parsing result.
+ result.Init();
+ result.flags |= ParseFlags.CaptureOffset;
+ if (TryParse(s, dtfi, styles, ref result))
+ {
+ offset = result.timeZoneOffset;
+ return result.parsedDate;
+ }
+ else
+ {
+ throw GetDateTimeParseException(ref result);
+ }
+ }
+
+
+ internal static bool TryParse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles, out DateTime result)
+ {
+ result = DateTime.MinValue;
+ DateTimeResult resultData = new DateTimeResult(); // The buffer to store the parsing result.
+ resultData.Init();
+ if (TryParse(s, dtfi, styles, ref resultData))
+ {
+ result = resultData.parsedDate;
+ return true;
+ }
+ return false;
+ }
+
+ internal static bool TryParse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles, out DateTime result, out TimeSpan offset)
+ {
+ result = DateTime.MinValue;
+ offset = TimeSpan.Zero;
+ DateTimeResult parseResult = new DateTimeResult(); // The buffer to store the parsing result.
+ parseResult.Init();
+ parseResult.flags |= ParseFlags.CaptureOffset;
+ if (TryParse(s, dtfi, styles, ref parseResult))
+ {
+ result = parseResult.parsedDate;
+ offset = parseResult.timeZoneOffset;
+ return true;
+ }
+ return false;
+ }
+
+
+ //
+ // This is the real method to do the parsing work.
+ //
+ internal static bool TryParse(String s, DateTimeFormatInfo dtfi, DateTimeStyles styles, ref DateTimeResult result)
+ {
+ if (s == null)
+ {
+ result.SetFailure(ParseFailureKind.ArgumentNull, "ArgumentNull_String", null, nameof(s));
+ return false;
+ }
+ if (s.Length == 0)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ Debug.Assert(dtfi != null, "dtfi == null");
+
+#if _LOGGING
+ DTFITrace(dtfi);
+#endif
+
+ DateTime time;
+ //
+ // First try the predefined format.
+ //
+
+ DS dps = DS.BEGIN; // Date Parsing State.
+ bool reachTerminalState = false;
+
+ DateTimeToken dtok = new DateTimeToken(); // The buffer to store the parsing token.
+ dtok.suffix = TokenType.SEP_Unk;
+ DateTimeRawInfo raw = new DateTimeRawInfo(); // The buffer to store temporary parsing information.
+ unsafe
+ {
+ Int32* numberPointer = stackalloc Int32[3];
+ raw.Init(numberPointer);
+ }
+ raw.hasSameDateAndTimeSeparators = dtfi.DateSeparator.Equals(dtfi.TimeSeparator, StringComparison.Ordinal);
+
+ result.calendar = dtfi.Calendar;
+ result.era = Calendar.CurrentEra;
+
+ //
+ // The string to be parsed. Use a __DTString wrapper so that we can trace the index which
+ // indicates the begining of next token.
+ //
+ __DTString str = new __DTString(s, dtfi);
+
+ str.GetNext();
+
+ //
+ // The following loop will break out when we reach the end of the str.
+ //
+ do
+ {
+ //
+ // Call the lexer to get the next token.
+ //
+ // If we find a era in Lex(), the era value will be in raw.era.
+ if (!Lex(dps, ref str, ref dtok, ref raw, ref result, ref dtfi, styles))
+ {
+ TPTraceExit("0000", dps);
+ return false;
+ }
+
+ //
+ // If the token is not unknown, process it.
+ // Otherwise, just discard it.
+ //
+ if (dtok.dtt != DTT.Unk)
+ {
+ //
+ // Check if we got any CJK Date/Time suffix.
+ // Since the Date/Time suffix tells us the number belongs to year/month/day/hour/minute/second,
+ // store the number in the appropriate field in the result.
+ //
+ if (dtok.suffix != TokenType.SEP_Unk)
+ {
+ if (!ProcessDateTimeSuffix(ref result, ref raw, ref dtok))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ TPTraceExit("0010", dps);
+ return false;
+ }
+
+ dtok.suffix = TokenType.SEP_Unk; // Reset suffix to SEP_Unk;
+ }
+
+ if (dtok.dtt == DTT.NumLocalTimeMark)
+ {
+ if (dps == DS.D_YNd || dps == DS.D_YN)
+ {
+ // Consider this as ISO 8601 format:
+ // "yyyy-MM-dd'T'HH:mm:ss" 1999-10-31T02:00:00
+ TPTraceExit("0020", dps);
+ return (ParseISO8601(ref raw, ref str, styles, ref result));
+ }
+ else
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ TPTraceExit("0030", dps);
+ return false;
+ }
+ }
+
+ if (raw.hasSameDateAndTimeSeparators)
+ {
+ if (dtok.dtt == DTT.YearEnd || dtok.dtt == DTT.YearSpace || dtok.dtt == DTT.YearDateSep)
+ {
+ // When time and date separators are same and we are hitting a year number while the first parsed part of the string was recognized
+ // as part of time (and not a date) DS.T_Nt, DS.T_NNt then change the state to be a date so we try to parse it as a date instead
+ if (dps == DS.T_Nt)
+ {
+ dps = DS.D_Nd;
+ }
+ if (dps == DS.T_NNt)
+ {
+ dps = DS.D_NNd;
+ }
+ }
+
+ bool atEnd = str.AtEnd();
+ if (dateParsingStates[(int)dps][(int)dtok.dtt] == DS.ERROR || atEnd)
+ {
+ switch (dtok.dtt)
+ {
+ // we have the case of Serbia have dates in forms 'd.M.yyyy.' so we can expect '.' after the date parts.
+ // changing the token to end with space instead of Date Separator will avoid failing the parsing.
+
+ case DTT.YearDateSep: dtok.dtt = atEnd ? DTT.YearEnd : DTT.YearSpace; break;
+ case DTT.NumDatesep: dtok.dtt = atEnd ? DTT.NumEnd : DTT.NumSpace; break;
+ case DTT.NumTimesep: dtok.dtt = atEnd ? DTT.NumEnd : DTT.NumSpace; break;
+ case DTT.MonthDatesep: dtok.dtt = atEnd ? DTT.MonthEnd : DTT.MonthSpace; break;
+ }
+ }
+ }
+
+ //
+ // Advance to the next state, and continue
+ //
+ dps = dateParsingStates[(int)dps][(int)dtok.dtt];
+
+ if (dps == DS.ERROR)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ TPTraceExit("0040 (invalid state transition)", dps);
+ return false;
+ }
+ else if (dps > DS.ERROR)
+ {
+ if ((dtfi.FormatFlags & DateTimeFormatFlags.UseHebrewRule) != 0)
+ {
+ if (!ProcessHebrewTerminalState(dps, ref result, ref styles, ref raw, dtfi))
+ {
+ TPTraceExit("0050 (ProcessHebrewTerminalState)", dps);
+ return false;
+ }
+ }
+ else
+ {
+ if (!ProcessTerminaltState(dps, ref result, ref styles, ref raw, dtfi))
+ {
+ TPTraceExit("0060 (ProcessTerminaltState)", dps);
+ return false;
+ }
+ }
+ reachTerminalState = true;
+
+ //
+ // If we have reached a terminal state, start over from DS.BEGIN again.
+ // For example, when we parsed "1999-12-23 13:30", we will reach a terminal state at "1999-12-23",
+ // and we start over so we can continue to parse "12:30".
+ //
+ dps = DS.BEGIN;
+ }
+ }
+ } while (dtok.dtt != DTT.End && dtok.dtt != DTT.NumEnd && dtok.dtt != DTT.MonthEnd);
+
+ if (!reachTerminalState)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ TPTraceExit("0070 (did not reach terminal state)", dps);
+ return false;
+ }
+
+ AdjustTimeMark(dtfi, ref raw);
+ if (!AdjustHour(ref result.Hour, raw.timeMark))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ TPTraceExit("0080 (AdjustHour)", dps);
+ return false;
+ }
+
+ // Check if the parased string only contains hour/minute/second values.
+ bool bTimeOnly = (result.Year == -1 && result.Month == -1 && result.Day == -1);
+
+ //
+ // Check if any year/month/day is missing in the parsing string.
+ // If yes, get the default value from today's date.
+ //
+ if (!CheckDefaultDateTime(ref result, ref result.calendar, styles))
+ {
+ TPTraceExit("0090 (failed to fill in missing year/month/day defaults)", dps);
+ return false;
+ }
+
+ if (!result.calendar.TryToDateTime(result.Year, result.Month, result.Day,
+ result.Hour, result.Minute, result.Second, 0, result.era, out time))
+ {
+ result.SetFailure(ParseFailureKind.FormatBadDateTimeCalendar, "Format_BadDateTimeCalendar", null);
+ TPTraceExit("0100 (result.calendar.TryToDateTime)", dps);
+ return false;
+ }
+ if (raw.fraction > 0)
+ {
+ time = time.AddTicks((long)Math.Round(raw.fraction * Calendar.TicksPerSecond));
+ }
+
+ //
+ // We have to check day of week before we adjust to the time zone.
+ // Otherwise, the value of day of week may change after adjustting to the time zone.
+ //
+ if (raw.dayOfWeek != -1)
+ {
+ //
+ // Check if day of week is correct.
+ //
+ if (raw.dayOfWeek != (int)result.calendar.GetDayOfWeek(time))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDayOfWeek", null);
+ TPTraceExit("0110 (dayOfWeek check)", dps);
+ return false;
+ }
+ }
+
+ result.parsedDate = time;
+
+ if (!DetermineTimeZoneAdjustments(ref result, styles, bTimeOnly))
+ {
+ TPTraceExit("0120 (DetermineTimeZoneAdjustments)", dps);
+ return false;
+ }
+ TPTraceExit("0130 (success)", dps);
+ return true;
+ }
+
+
+ // Handles time zone adjustments and sets DateTimeKind values as required by the styles
+ private static Boolean DetermineTimeZoneAdjustments(ref DateTimeResult result, DateTimeStyles styles, Boolean bTimeOnly)
+ {
+ if ((result.flags & ParseFlags.CaptureOffset) != 0)
+ {
+ // This is a DateTimeOffset parse, so the offset will actually be captured directly, and
+ // no adjustment is required in most cases
+ return DateTimeOffsetTimeZonePostProcessing(ref result, styles);
+ }
+ else
+ {
+ Int64 offsetTicks = result.timeZoneOffset.Ticks;
+
+ // the DateTime offset must be within +- 14:00 hours.
+ if (offsetTicks < DateTimeOffset.MinOffset || offsetTicks > DateTimeOffset.MaxOffset)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_OffsetOutOfRange", null);
+ return false;
+ }
+ }
+
+ // The flags AssumeUniveral and AssumeLocal only apply when the input does not have a time zone
+ if ((result.flags & ParseFlags.TimeZoneUsed) == 0)
+ {
+ // If AssumeLocal or AssumeLocal is used, there will always be a kind specified. As in the
+ // case when a time zone is present, it will default to being local unless AdjustToUniversal
+ // is present. These comparisons determine whether setting the kind is sufficient, or if a
+ // time zone adjustment is required. For consistentcy with the rest of parsing, it is desirable
+ // to fall through to the Adjust methods below, so that there is consist handling of boundary
+ // cases like wrapping around on time-only dates and temporarily allowing an adjusted date
+ // to exceed DateTime.MaxValue
+ if ((styles & DateTimeStyles.AssumeLocal) != 0)
+ {
+ if ((styles & DateTimeStyles.AdjustToUniversal) != 0)
+ {
+ result.flags |= ParseFlags.TimeZoneUsed;
+ result.timeZoneOffset = TimeZoneInfo.GetLocalUtcOffset(result.parsedDate, TimeZoneInfoOptions.NoThrowOnInvalidTime);
+ }
+ else
+ {
+ result.parsedDate = DateTime.SpecifyKind(result.parsedDate, DateTimeKind.Local);
+ return true;
+ }
+ }
+ else if ((styles & DateTimeStyles.AssumeUniversal) != 0)
+ {
+ if ((styles & DateTimeStyles.AdjustToUniversal) != 0)
+ {
+ result.parsedDate = DateTime.SpecifyKind(result.parsedDate, DateTimeKind.Utc);
+ return true;
+ }
+ else
+ {
+ result.flags |= ParseFlags.TimeZoneUsed;
+ result.timeZoneOffset = TimeSpan.Zero;
+ }
+ }
+ else
+ {
+ // No time zone and no Assume flags, so DateTimeKind.Unspecified is fine
+ Debug.Assert(result.parsedDate.Kind == DateTimeKind.Unspecified, "result.parsedDate.Kind == DateTimeKind.Unspecified");
+ return true;
+ }
+ }
+
+ if (((styles & DateTimeStyles.RoundtripKind) != 0) && ((result.flags & ParseFlags.TimeZoneUtc) != 0))
+ {
+ result.parsedDate = DateTime.SpecifyKind(result.parsedDate, DateTimeKind.Utc);
+ return true;
+ }
+
+ if ((styles & DateTimeStyles.AdjustToUniversal) != 0)
+ {
+ return (AdjustTimeZoneToUniversal(ref result));
+ }
+ return (AdjustTimeZoneToLocal(ref result, bTimeOnly));
+ }
+
+ // Apply validation and adjustments specific to DateTimeOffset
+ private static Boolean DateTimeOffsetTimeZonePostProcessing(ref DateTimeResult result, DateTimeStyles styles)
+ {
+ // For DateTimeOffset, default to the Utc or Local offset when an offset was not specified by
+ // the input string.
+ if ((result.flags & ParseFlags.TimeZoneUsed) == 0)
+ {
+ if ((styles & DateTimeStyles.AssumeUniversal) != 0)
+ {
+ // AssumeUniversal causes the offset to default to zero (0)
+ result.timeZoneOffset = TimeSpan.Zero;
+ }
+ else
+ {
+ // AssumeLocal causes the offset to default to Local. This flag is on by default for DateTimeOffset.
+ result.timeZoneOffset = TimeZoneInfo.GetLocalUtcOffset(result.parsedDate, TimeZoneInfoOptions.NoThrowOnInvalidTime);
+ }
+ }
+
+ Int64 offsetTicks = result.timeZoneOffset.Ticks;
+
+ // there should be no overflow, because the offset can be no more than -+100 hours and the date already
+ // fits within a DateTime.
+ Int64 utcTicks = result.parsedDate.Ticks - offsetTicks;
+
+ // For DateTimeOffset, both the parsed time and the corresponding UTC value must be within the boundaries
+ // of a DateTime instance.
+ if (utcTicks < DateTime.MinTicks || utcTicks > DateTime.MaxTicks)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_UTCOutOfRange", null);
+ return false;
+ }
+
+ // the offset must be within +- 14:00 hours.
+ if (offsetTicks < DateTimeOffset.MinOffset || offsetTicks > DateTimeOffset.MaxOffset)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_OffsetOutOfRange", null);
+ return false;
+ }
+
+ // DateTimeOffset should still honor the AdjustToUniversal flag for consistency with DateTime. It means you
+ // want to return an adjusted UTC value, so store the utcTicks in the DateTime and set the offset to zero
+ if ((styles & DateTimeStyles.AdjustToUniversal) != 0)
+ {
+ if (((result.flags & ParseFlags.TimeZoneUsed) == 0) && ((styles & DateTimeStyles.AssumeUniversal) == 0))
+ {
+ // Handle the special case where the timeZoneOffset was defaulted to Local
+ Boolean toUtcResult = AdjustTimeZoneToUniversal(ref result);
+ result.timeZoneOffset = TimeSpan.Zero;
+ return toUtcResult;
+ }
+
+ // The constructor should always succeed because of the range check earlier in the function
+ // Althought it is UTC, internally DateTimeOffset does not use this flag
+ result.parsedDate = new DateTime(utcTicks, DateTimeKind.Utc);
+ result.timeZoneOffset = TimeSpan.Zero;
+ }
+
+ return true;
+ }
+
+
+ //
+ // Adjust the specified time to universal time based on the supplied timezone.
+ // E.g. when parsing "2001/06/08 14:00-07:00",
+ // the time is 2001/06/08 14:00, and timeZoneOffset = -07:00.
+ // The result will be "2001/06/08 21:00"
+ //
+ private static Boolean AdjustTimeZoneToUniversal(ref DateTimeResult result)
+ {
+ long resultTicks = result.parsedDate.Ticks;
+ resultTicks -= result.timeZoneOffset.Ticks;
+ if (resultTicks < 0)
+ {
+ resultTicks += Calendar.TicksPerDay;
+ }
+
+ if (resultTicks < DateTime.MinTicks || resultTicks > DateTime.MaxTicks)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_DateOutOfRange", null);
+ return false;
+ }
+ result.parsedDate = new DateTime(resultTicks, DateTimeKind.Utc);
+ return true;
+ }
+
+ //
+ // Adjust the specified time to universal time based on the supplied timezone,
+ // and then convert to local time.
+ // E.g. when parsing "2001/06/08 14:00-04:00", and local timezone is GMT-7.
+ // the time is 2001/06/08 14:00, and timeZoneOffset = -05:00.
+ // The result will be "2001/06/08 11:00"
+ //
+ private static Boolean AdjustTimeZoneToLocal(ref DateTimeResult result, bool bTimeOnly)
+ {
+ long resultTicks = result.parsedDate.Ticks;
+ // Convert to local ticks
+ TimeZoneInfo tz = TimeZoneInfo.Local;
+ Boolean isAmbiguousLocalDst = false;
+ if (resultTicks < Calendar.TicksPerDay)
+ {
+ //
+ // This is time of day.
+ //
+
+ // Adjust timezone.
+ resultTicks -= result.timeZoneOffset.Ticks;
+ // If the time is time of day, use the current timezone offset.
+ resultTicks += tz.GetUtcOffset(bTimeOnly ? DateTime.Now : result.parsedDate, TimeZoneInfoOptions.NoThrowOnInvalidTime).Ticks;
+
+ if (resultTicks < 0)
+ {
+ resultTicks += Calendar.TicksPerDay;
+ }
+ }
+ else
+ {
+ // Adjust timezone to GMT.
+ resultTicks -= result.timeZoneOffset.Ticks;
+ if (resultTicks < DateTime.MinTicks || resultTicks > DateTime.MaxTicks)
+ {
+ // If the result ticks is greater than DateTime.MaxValue, we can not create a DateTime from this ticks.
+ // In this case, keep using the old code.
+ resultTicks += tz.GetUtcOffset(result.parsedDate, TimeZoneInfoOptions.NoThrowOnInvalidTime).Ticks;
+ }
+ else
+ {
+ // Convert the GMT time to local time.
+ DateTime utcDt = new DateTime(resultTicks, DateTimeKind.Utc);
+ Boolean isDaylightSavings = false;
+ resultTicks += TimeZoneInfo.GetUtcOffsetFromUtc(utcDt, TimeZoneInfo.Local, out isDaylightSavings, out isAmbiguousLocalDst).Ticks;
+ }
+ }
+ if (resultTicks < DateTime.MinTicks || resultTicks > DateTime.MaxTicks)
+ {
+ result.parsedDate = DateTime.MinValue;
+ result.SetFailure(ParseFailureKind.Format, "Format_DateOutOfRange", null);
+ return false;
+ }
+ result.parsedDate = new DateTime(resultTicks, DateTimeKind.Local, isAmbiguousLocalDst);
+ return true;
+ }
+
+ //
+ // Parse the ISO8601 format string found during Parse();
+ //
+ //
+ private static bool ParseISO8601(ref DateTimeRawInfo raw, ref __DTString str, DateTimeStyles styles, ref DateTimeResult result)
+ {
+ if (raw.year < 0 || raw.GetNumber(0) < 0 || raw.GetNumber(1) < 0)
+ {
+ }
+ str.Index--;
+ int hour, minute;
+ int second = 0;
+ double partSecond = 0;
+
+ str.SkipWhiteSpaces();
+ if (!ParseDigits(ref str, 2, out hour))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ str.SkipWhiteSpaces();
+ if (!str.Match(':'))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ str.SkipWhiteSpaces();
+ if (!ParseDigits(ref str, 2, out minute))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ str.SkipWhiteSpaces();
+ if (str.Match(':'))
+ {
+ str.SkipWhiteSpaces();
+ if (!ParseDigits(ref str, 2, out second))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ if (str.Match('.'))
+ {
+ if (!ParseFraction(ref str, out partSecond))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ str.Index--;
+ }
+ str.SkipWhiteSpaces();
+ }
+ if (str.GetNext())
+ {
+ char ch = str.GetChar();
+ if (ch == '+' || ch == '-')
+ {
+ result.flags |= ParseFlags.TimeZoneUsed;
+ if (!ParseTimeZone(ref str, ref result.timeZoneOffset))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ }
+ else if (ch == 'Z' || ch == 'z')
+ {
+ result.flags |= ParseFlags.TimeZoneUsed;
+ result.timeZoneOffset = TimeSpan.Zero;
+ result.flags |= ParseFlags.TimeZoneUtc;
+ }
+ else
+ {
+ str.Index--;
+ }
+ str.SkipWhiteSpaces();
+ if (str.Match('#'))
+ {
+ if (!VerifyValidPunctuation(ref str))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ str.SkipWhiteSpaces();
+ }
+ if (str.Match('\0'))
+ {
+ if (!VerifyValidPunctuation(ref str))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ }
+ if (str.GetNext())
+ {
+ // If this is true, there were non-white space characters remaining in the DateTime
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ }
+
+ DateTime time;
+ Calendar calendar = GregorianCalendar.GetDefaultInstance();
+ if (!calendar.TryToDateTime(raw.year, raw.GetNumber(0), raw.GetNumber(1),
+ hour, minute, second, 0, result.era, out time))
+ {
+ result.SetFailure(ParseFailureKind.FormatBadDateTimeCalendar, "Format_BadDateTimeCalendar", null);
+ return false;
+ }
+
+ time = time.AddTicks((long)Math.Round(partSecond * Calendar.TicksPerSecond));
+ result.parsedDate = time;
+ if (!DetermineTimeZoneAdjustments(ref result, styles, false))
+ {
+ return false;
+ }
+ return true;
+ }
+
+
+ ////////////////////////////////////////////////////////////////////////
+ //
+ // Actions:
+ // Parse the current word as a Hebrew number.
+ // This is used by DateTime.ParseExact().
+ //
+ ////////////////////////////////////////////////////////////////////////
+
+ internal static bool MatchHebrewDigits(ref __DTString str, int digitLen, out int number)
+ {
+ number = 0;
+
+ // Create a context object so that we can parse the Hebrew number text character by character.
+ HebrewNumberParsingContext context = new HebrewNumberParsingContext(0);
+
+ // Set this to ContinueParsing so that we will run the following while loop in the first time.
+ HebrewNumberParsingState state = HebrewNumberParsingState.ContinueParsing;
+
+ while (state == HebrewNumberParsingState.ContinueParsing && str.GetNext())
+ {
+ state = HebrewNumber.ParseByChar(str.GetChar(), ref context);
+ }
+
+ if (state == HebrewNumberParsingState.FoundEndOfHebrewNumber)
+ {
+ // If we have reached a terminal state, update the result and returns.
+ number = context.result;
+ return (true);
+ }
+
+ // If we run out of the character before reaching FoundEndOfHebrewNumber, or
+ // the state is InvalidHebrewNumber or ContinueParsing, we fail to match a Hebrew number.
+ // Return an error.
+ return false;
+ }
+
+ /*=================================ParseDigits==================================
+ **Action: Parse the number string in __DTString that are formatted using
+ ** the following patterns:
+ ** "0", "00", and "000..0"
+ **Returns: the integer value
+ **Arguments: str: a __DTString. The parsing will start from the
+ ** next character after str.Index.
+ **Exceptions: FormatException if error in parsing number.
+ ==============================================================================*/
+
+ internal static bool ParseDigits(ref __DTString str, int digitLen, out int result)
+ {
+ if (digitLen == 1)
+ {
+ // 1 really means 1 or 2 for this call
+ return ParseDigits(ref str, 1, 2, out result);
+ }
+ else
+ {
+ return ParseDigits(ref str, digitLen, digitLen, out result);
+ }
+ }
+
+ internal static bool ParseDigits(ref __DTString str, int minDigitLen, int maxDigitLen, out int result)
+ {
+ Debug.Assert(minDigitLen > 0, "minDigitLen > 0");
+ Debug.Assert(maxDigitLen < 9, "maxDigitLen < 9");
+ Debug.Assert(minDigitLen <= maxDigitLen, "minDigitLen <= maxDigitLen");
+ result = 0;
+ int startingIndex = str.Index;
+ int tokenLength = 0;
+ while (tokenLength < maxDigitLen)
+ {
+ if (!str.GetNextDigit())
+ {
+ str.Index--;
+ break;
+ }
+ result = result * 10 + str.GetDigit();
+ tokenLength++;
+ }
+ if (tokenLength < minDigitLen)
+ {
+ str.Index = startingIndex;
+ return false;
+ }
+ return true;
+ }
+
+ /*=================================ParseFractionExact==================================
+ **Action: Parse the number string in __DTString that are formatted using
+ ** the following patterns:
+ ** "0", "00", and "000..0"
+ **Returns: the fraction value
+ **Arguments: str: a __DTString. The parsing will start from the
+ ** next character after str.Index.
+ **Exceptions: FormatException if error in parsing number.
+ ==============================================================================*/
+
+ private static bool ParseFractionExact(ref __DTString str, int maxDigitLen, ref double result)
+ {
+ if (!str.GetNextDigit())
+ {
+ str.Index--;
+ return false;
+ }
+ result = str.GetDigit();
+
+ int digitLen = 1;
+ for (; digitLen < maxDigitLen; digitLen++)
+ {
+ if (!str.GetNextDigit())
+ {
+ str.Index--;
+ break;
+ }
+ result = result * 10 + str.GetDigit();
+ }
+
+ result = ((double)result / Math.Pow(10, digitLen));
+ return (digitLen == maxDigitLen);
+ }
+
+ /*=================================ParseSign==================================
+ **Action: Parse a positive or a negative sign.
+ **Returns: true if postive sign. flase if negative sign.
+ **Arguments: str: a __DTString. The parsing will start from the
+ ** next character after str.Index.
+ **Exceptions: FormatException if end of string is encountered or a sign
+ ** symbol is not found.
+ ==============================================================================*/
+
+ private static bool ParseSign(ref __DTString str, ref bool result)
+ {
+ if (!str.GetNext())
+ {
+ // A sign symbol ('+' or '-') is expected. However, end of string is encountered.
+ return false;
+ }
+ char ch = str.GetChar();
+ if (ch == '+')
+ {
+ result = true;
+ return (true);
+ }
+ else if (ch == '-')
+ {
+ result = false;
+ return (true);
+ }
+ // A sign symbol ('+' or '-') is expected.
+ return false;
+ }
+
+ /*=================================ParseTimeZoneOffset==================================
+ **Action: Parse the string formatted using "z", "zz", "zzz" in DateTime.Format().
+ **Returns: the TimeSpan for the parsed timezone offset.
+ **Arguments: str: a __DTString. The parsing will start from the
+ ** next character after str.Index.
+ ** len: the repeated number of the "z"
+ **Exceptions: FormatException if errors in parsing.
+ ==============================================================================*/
+
+ private static bool ParseTimeZoneOffset(ref __DTString str, int len, ref TimeSpan result)
+ {
+ bool isPositive = true;
+ int hourOffset;
+ int minuteOffset = 0;
+
+ switch (len)
+ {
+ case 1:
+ case 2:
+ if (!ParseSign(ref str, ref isPositive))
+ {
+ return (false);
+ }
+ if (!ParseDigits(ref str, len, out hourOffset))
+ {
+ return (false);
+ }
+ break;
+ default:
+ if (!ParseSign(ref str, ref isPositive))
+ {
+ return (false);
+ }
+
+ // Parsing 1 digit will actually parse 1 or 2.
+ if (!ParseDigits(ref str, 1, out hourOffset))
+ {
+ return (false);
+ }
+ // ':' is optional.
+ if (str.Match(":"))
+ {
+ // Found ':'
+ if (!ParseDigits(ref str, 2, out minuteOffset))
+ {
+ return (false);
+ }
+ }
+ else
+ {
+ // Since we can not match ':', put the char back.
+ str.Index--;
+ if (!ParseDigits(ref str, 2, out minuteOffset))
+ {
+ return (false);
+ }
+ }
+ break;
+ }
+ if (minuteOffset < 0 || minuteOffset >= 60)
+ {
+ return false;
+ }
+
+ result = (new TimeSpan(hourOffset, minuteOffset, 0));
+ if (!isPositive)
+ {
+ result = result.Negate();
+ }
+ return (true);
+ }
+
+ /*=================================MatchAbbreviatedMonthName==================================
+ **Action: Parse the abbreviated month name from string starting at str.Index.
+ **Returns: A value from 1 to 12 for the first month to the twelveth month.
+ **Arguments: str: a __DTString. The parsing will start from the
+ ** next character after str.Index.
+ **Exceptions: FormatException if an abbreviated month name can not be found.
+ ==============================================================================*/
+
+ private static bool MatchAbbreviatedMonthName(ref __DTString str, DateTimeFormatInfo dtfi, ref int result)
+ {
+ int maxMatchStrLen = 0;
+ result = -1;
+ if (str.GetNext())
+ {
+ //
+ // Scan the month names (note that some calendars has 13 months) and find
+ // the matching month name which has the max string length.
+ // We need to do this because some cultures (e.g. "cs-CZ") which have
+ // abbreviated month names with the same prefix.
+ //
+ int monthsInYear = (dtfi.GetMonthName(13).Length == 0 ? 12 : 13);
+ for (int i = 1; i <= monthsInYear; i++)
+ {
+ String searchStr = dtfi.GetAbbreviatedMonthName(i);
+ int matchStrLen = searchStr.Length;
+ if (dtfi.HasSpacesInMonthNames
+ ? str.MatchSpecifiedWords(searchStr, false, ref matchStrLen)
+ : str.MatchSpecifiedWord(searchStr))
+ {
+ if (matchStrLen > maxMatchStrLen)
+ {
+ maxMatchStrLen = matchStrLen;
+ result = i;
+ }
+ }
+ }
+
+ // Search leap year form.
+ if ((dtfi.FormatFlags & DateTimeFormatFlags.UseLeapYearMonth) != 0)
+ {
+ int tempResult = str.MatchLongestWords(dtfi.internalGetLeapYearMonthNames(), ref maxMatchStrLen);
+ // We found a longer match in the leap year month name. Use this as the result.
+ // The result from MatchLongestWords is 0 ~ length of word array.
+ // So we increment the result by one to become the month value.
+ if (tempResult >= 0)
+ {
+ result = tempResult + 1;
+ }
+ }
+ }
+ if (result > 0)
+ {
+ str.Index += (maxMatchStrLen - 1);
+ return (true);
+ }
+ return false;
+ }
+
+ /*=================================MatchMonthName==================================
+ **Action: Parse the month name from string starting at str.Index.
+ **Returns: A value from 1 to 12 indicating the first month to the twelveth month.
+ **Arguments: str: a __DTString. The parsing will start from the
+ ** next character after str.Index.
+ **Exceptions: FormatException if a month name can not be found.
+ ==============================================================================*/
+
+ private static bool MatchMonthName(ref __DTString str, DateTimeFormatInfo dtfi, ref int result)
+ {
+ int maxMatchStrLen = 0;
+ result = -1;
+ if (str.GetNext())
+ {
+ //
+ // Scan the month names (note that some calendars has 13 months) and find
+ // the matching month name which has the max string length.
+ // We need to do this because some cultures (e.g. "vi-VN") which have
+ // month names with the same prefix.
+ //
+ int monthsInYear = (dtfi.GetMonthName(13).Length == 0 ? 12 : 13);
+ for (int i = 1; i <= monthsInYear; i++)
+ {
+ String searchStr = dtfi.GetMonthName(i);
+ int matchStrLen = searchStr.Length;
+ if (dtfi.HasSpacesInMonthNames
+ ? str.MatchSpecifiedWords(searchStr, false, ref matchStrLen)
+ : str.MatchSpecifiedWord(searchStr))
+ {
+ if (matchStrLen > maxMatchStrLen)
+ {
+ maxMatchStrLen = matchStrLen;
+ result = i;
+ }
+ }
+ }
+
+ // Search genitive form.
+ if ((dtfi.FormatFlags & DateTimeFormatFlags.UseGenitiveMonth) != 0)
+ {
+ int tempResult = str.MatchLongestWords(dtfi.MonthGenitiveNames, ref maxMatchStrLen);
+ // We found a longer match in the genitive month name. Use this as the result.
+ // The result from MatchLongestWords is 0 ~ length of word array.
+ // So we increment the result by one to become the month value.
+ if (tempResult >= 0)
+ {
+ result = tempResult + 1;
+ }
+ }
+
+ // Search leap year form.
+ if ((dtfi.FormatFlags & DateTimeFormatFlags.UseLeapYearMonth) != 0)
+ {
+ int tempResult = str.MatchLongestWords(dtfi.internalGetLeapYearMonthNames(), ref maxMatchStrLen);
+ // We found a longer match in the leap year month name. Use this as the result.
+ // The result from MatchLongestWords is 0 ~ length of word array.
+ // So we increment the result by one to become the month value.
+ if (tempResult >= 0)
+ {
+ result = tempResult + 1;
+ }
+ }
+ }
+
+ if (result > 0)
+ {
+ str.Index += (maxMatchStrLen - 1);
+ return (true);
+ }
+ return false;
+ }
+
+ /*=================================MatchAbbreviatedDayName==================================
+ **Action: Parse the abbreviated day of week name from string starting at str.Index.
+ **Returns: A value from 0 to 6 indicating Sunday to Saturday.
+ **Arguments: str: a __DTString. The parsing will start from the
+ ** next character after str.Index.
+ **Exceptions: FormatException if a abbreviated day of week name can not be found.
+ ==============================================================================*/
+
+ private static bool MatchAbbreviatedDayName(ref __DTString str, DateTimeFormatInfo dtfi, ref int result)
+ {
+ int maxMatchStrLen = 0;
+ result = -1;
+ if (str.GetNext())
+ {
+ for (DayOfWeek i = DayOfWeek.Sunday; i <= DayOfWeek.Saturday; i++)
+ {
+ String searchStr = dtfi.GetAbbreviatedDayName(i);
+ int matchStrLen = searchStr.Length;
+ if (dtfi.HasSpacesInDayNames
+ ? str.MatchSpecifiedWords(searchStr, false, ref matchStrLen)
+ : str.MatchSpecifiedWord(searchStr))
+ {
+ if (matchStrLen > maxMatchStrLen)
+ {
+ maxMatchStrLen = matchStrLen;
+ result = (int)i;
+ }
+ }
+ }
+ }
+ if (result >= 0)
+ {
+ str.Index += maxMatchStrLen - 1;
+ return (true);
+ }
+ return false;
+ }
+
+ /*=================================MatchDayName==================================
+ **Action: Parse the day of week name from string starting at str.Index.
+ **Returns: A value from 0 to 6 indicating Sunday to Saturday.
+ **Arguments: str: a __DTString. The parsing will start from the
+ ** next character after str.Index.
+ **Exceptions: FormatException if a day of week name can not be found.
+ ==============================================================================*/
+
+ private static bool MatchDayName(ref __DTString str, DateTimeFormatInfo dtfi, ref int result)
+ {
+ // Turkish (tr-TR) got day names with the same prefix.
+ int maxMatchStrLen = 0;
+ result = -1;
+ if (str.GetNext())
+ {
+ for (DayOfWeek i = DayOfWeek.Sunday; i <= DayOfWeek.Saturday; i++)
+ {
+ String searchStr = dtfi.GetDayName(i);
+ int matchStrLen = searchStr.Length;
+ if (dtfi.HasSpacesInDayNames
+ ? str.MatchSpecifiedWords(searchStr, false, ref matchStrLen)
+ : str.MatchSpecifiedWord(searchStr))
+ {
+ if (matchStrLen > maxMatchStrLen)
+ {
+ maxMatchStrLen = matchStrLen;
+ result = (int)i;
+ }
+ }
+ }
+ }
+ if (result >= 0)
+ {
+ str.Index += maxMatchStrLen - 1;
+ return (true);
+ }
+ return false;
+ }
+
+ /*=================================MatchEraName==================================
+ **Action: Parse era name from string starting at str.Index.
+ **Returns: An era value.
+ **Arguments: str: a __DTString. The parsing will start from the
+ ** next character after str.Index.
+ **Exceptions: FormatException if an era name can not be found.
+ ==============================================================================*/
+
+ private static bool MatchEraName(ref __DTString str, DateTimeFormatInfo dtfi, ref int result)
+ {
+ if (str.GetNext())
+ {
+ int[] eras = dtfi.Calendar.Eras;
+
+ if (eras != null)
+ {
+ for (int i = 0; i < eras.Length; i++)
+ {
+ String searchStr = dtfi.GetEraName(eras[i]);
+ if (str.MatchSpecifiedWord(searchStr))
+ {
+ str.Index += (searchStr.Length - 1);
+ result = eras[i];
+ return (true);
+ }
+ searchStr = dtfi.GetAbbreviatedEraName(eras[i]);
+ if (str.MatchSpecifiedWord(searchStr))
+ {
+ str.Index += (searchStr.Length - 1);
+ result = eras[i];
+ return (true);
+ }
+ }
+ }
+ }
+ return false;
+ }
+
+ /*=================================MatchTimeMark==================================
+ **Action: Parse the time mark (AM/PM) from string starting at str.Index.
+ **Returns: TM_AM or TM_PM.
+ **Arguments: str: a __DTString. The parsing will start from the
+ ** next character after str.Index.
+ **Exceptions: FormatException if a time mark can not be found.
+ ==============================================================================*/
+
+ private static bool MatchTimeMark(ref __DTString str, DateTimeFormatInfo dtfi, ref TM result)
+ {
+ result = TM.NotSet;
+ // In some cultures have empty strings in AM/PM mark. E.g. af-ZA (0x0436), the AM mark is "", and PM mark is "nm".
+ if (dtfi.AMDesignator.Length == 0)
+ {
+ result = TM.AM;
+ }
+ if (dtfi.PMDesignator.Length == 0)
+ {
+ result = TM.PM;
+ }
+
+ if (str.GetNext())
+ {
+ String searchStr = dtfi.AMDesignator;
+ if (searchStr.Length > 0)
+ {
+ if (str.MatchSpecifiedWord(searchStr))
+ {
+ // Found an AM timemark with length > 0.
+ str.Index += (searchStr.Length - 1);
+ result = TM.AM;
+ return (true);
+ }
+ }
+ searchStr = dtfi.PMDesignator;
+ if (searchStr.Length > 0)
+ {
+ if (str.MatchSpecifiedWord(searchStr))
+ {
+ // Found a PM timemark with length > 0.
+ str.Index += (searchStr.Length - 1);
+ result = TM.PM;
+ return (true);
+ }
+ }
+ str.Index--; // Undo the GetNext call.
+ }
+ if (result != TM.NotSet)
+ {
+ // If one of the AM/PM marks is empty string, return the result.
+ return (true);
+ }
+ return false;
+ }
+
+ /*=================================MatchAbbreviatedTimeMark==================================
+ **Action: Parse the abbreviated time mark (AM/PM) from string starting at str.Index.
+ **Returns: TM_AM or TM_PM.
+ **Arguments: str: a __DTString. The parsing will start from the
+ ** next character after str.Index.
+ **Exceptions: FormatException if a abbreviated time mark can not be found.
+ ==============================================================================*/
+
+ private static bool MatchAbbreviatedTimeMark(ref __DTString str, DateTimeFormatInfo dtfi, ref TM result)
+ {
+ // NOTENOTE : the assumption here is that abbreviated time mark is the first
+ // character of the AM/PM designator. If this invariant changes, we have to
+ // change the code below.
+ if (str.GetNext())
+ {
+ if (str.GetChar() == dtfi.AMDesignator[0])
+ {
+ result = TM.AM;
+ return (true);
+ }
+ if (str.GetChar() == dtfi.PMDesignator[0])
+ {
+ result = TM.PM;
+ return (true);
+ }
+ }
+ return false;
+ }
+
+ /*=================================CheckNewValue==================================
+ **Action: Check if currentValue is initialized. If not, return the newValue.
+ ** If yes, check if the current value is equal to newValue. Return false
+ ** if they are not equal. This is used to check the case like "d" and "dd" are both
+ ** used to format a string.
+ **Returns: the correct value for currentValue.
+ **Arguments:
+ **Exceptions:
+ ==============================================================================*/
+
+ private static bool CheckNewValue(ref int currentValue, int newValue, char patternChar, ref DateTimeResult result)
+ {
+ if (currentValue == -1)
+ {
+ currentValue = newValue;
+ return (true);
+ }
+ else
+ {
+ if (newValue != currentValue)
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_RepeatDateTimePattern", patternChar);
+ return (false);
+ }
+ }
+ return (true);
+ }
+
+ private static DateTime GetDateTimeNow(ref DateTimeResult result, ref DateTimeStyles styles)
+ {
+ if ((result.flags & ParseFlags.CaptureOffset) != 0)
+ {
+ if ((result.flags & ParseFlags.TimeZoneUsed) != 0)
+ {
+ // use the supplied offset to calculate 'Now'
+ return new DateTime(DateTime.UtcNow.Ticks + result.timeZoneOffset.Ticks, DateTimeKind.Unspecified);
+ }
+ else if ((styles & DateTimeStyles.AssumeUniversal) != 0)
+ {
+ // assume the offset is Utc
+ return DateTime.UtcNow;
+ }
+ }
+
+ // assume the offset is Local
+ return DateTime.Now;
+ }
+
+ private static bool CheckDefaultDateTime(ref DateTimeResult result, ref Calendar cal, DateTimeStyles styles)
+ {
+ if ((result.flags & ParseFlags.CaptureOffset) != 0)
+ {
+ // DateTimeOffset.Parse should allow dates without a year, but only if there is also no time zone marker;
+ // e.g. "May 1 5pm" is OK, but "May 1 5pm -08:30" is not. This is somewhat pragmatic, since we would
+ // have to rearchitect parsing completely to allow this one case to correctly handle things like leap
+ // years and leap months. Is is an extremely corner case, and DateTime is basically incorrect in that
+ // case today.
+ //
+ // values like "11:00Z" or "11:00 -3:00" are also acceptable
+ //
+ // if ((month or day is set) and (year is not set and time zone is set))
+ //
+ if (((result.Month != -1) || (result.Day != -1))
+ && ((result.Year == -1 || ((result.flags & ParseFlags.YearDefault) != 0)) && (result.flags & ParseFlags.TimeZoneUsed) != 0))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_MissingIncompleteDate", null);
+ return false;
+ }
+ }
+
+
+ if ((result.Year == -1) || (result.Month == -1) || (result.Day == -1))
+ {
+ /*
+ The following table describes the behaviors of getting the default value
+ when a certain year/month/day values are missing.
+
+ An "X" means that the value exists. And "--" means that value is missing.
+
+ Year Month Day => ResultYear ResultMonth ResultDay Note
+
+ X X X Parsed year Parsed month Parsed day
+ X X -- Parsed Year Parsed month First day If we have year and month, assume the first day of that month.
+ X -- X Parsed year First month Parsed day If the month is missing, assume first month of that year.
+ X -- -- Parsed year First month First day If we have only the year, assume the first day of that year.
+
+ -- X X CurrentYear Parsed month Parsed day If the year is missing, assume the current year.
+ -- X -- CurrentYear Parsed month First day If we have only a month value, assume the current year and current day.
+ -- -- X CurrentYear First month Parsed day If we have only a day value, assume current year and first month.
+ -- -- -- CurrentYear Current month Current day So this means that if the date string only contains time, you will get current date.
+
+ */
+
+ DateTime now = GetDateTimeNow(ref result, ref styles);
+ if (result.Month == -1 && result.Day == -1)
+ {
+ if (result.Year == -1)
+ {
+ if ((styles & DateTimeStyles.NoCurrentDateDefault) != 0)
+ {
+ // If there is no year/month/day values, and NoCurrentDateDefault flag is used,
+ // set the year/month/day value to the beginning year/month/day of DateTime().
+ // Note we should be using Gregorian for the year/month/day.
+ cal = GregorianCalendar.GetDefaultInstance();
+ result.Year = result.Month = result.Day = 1;
+ }
+ else
+ {
+ // Year/Month/Day are all missing.
+ result.Year = cal.GetYear(now);
+ result.Month = cal.GetMonth(now);
+ result.Day = cal.GetDayOfMonth(now);
+ }
+ }
+ else
+ {
+ // Month/Day are both missing.
+ result.Month = 1;
+ result.Day = 1;
+ }
+ }
+ else
+ {
+ if (result.Year == -1)
+ {
+ result.Year = cal.GetYear(now);
+ }
+ if (result.Month == -1)
+ {
+ result.Month = 1;
+ }
+ if (result.Day == -1)
+ {
+ result.Day = 1;
+ }
+ }
+ }
+ // Set Hour/Minute/Second to zero if these value are not in str.
+ if (result.Hour == -1) result.Hour = 0;
+ if (result.Minute == -1) result.Minute = 0;
+ if (result.Second == -1) result.Second = 0;
+ if (result.era == -1) result.era = Calendar.CurrentEra;
+ return true;
+ }
+
+ // Expand a pre-defined format string (like "D" for long date) to the real format that
+ // we are going to use in the date time parsing.
+ // This method also set the dtfi according/parseInfo to some special pre-defined
+ // formats.
+ //
+ private static String ExpandPredefinedFormat(String format, ref DateTimeFormatInfo dtfi, ref ParsingInfo parseInfo, ref DateTimeResult result)
+ {
+ //
+ // Check the format to see if we need to override the dtfi to be InvariantInfo,
+ // and see if we need to set up the userUniversalTime flag.
+ //
+ switch (format[0])
+ {
+ case 'o':
+ case 'O': // Round Trip Format
+ parseInfo.calendar = GregorianCalendar.GetDefaultInstance();
+ dtfi = DateTimeFormatInfo.InvariantInfo;
+ break;
+ case 'r':
+ case 'R': // RFC 1123 Standard. (in Universal time)
+ parseInfo.calendar = GregorianCalendar.GetDefaultInstance();
+ dtfi = DateTimeFormatInfo.InvariantInfo;
+
+ if ((result.flags & ParseFlags.CaptureOffset) != 0)
+ {
+ result.flags |= ParseFlags.Rfc1123Pattern;
+ }
+ break;
+ case 's': // Sortable format (in local time)
+ dtfi = DateTimeFormatInfo.InvariantInfo;
+ parseInfo.calendar = GregorianCalendar.GetDefaultInstance();
+ break;
+ case 'u': // Universal time format in sortable format.
+ parseInfo.calendar = GregorianCalendar.GetDefaultInstance();
+ dtfi = DateTimeFormatInfo.InvariantInfo;
+
+ if ((result.flags & ParseFlags.CaptureOffset) != 0)
+ {
+ result.flags |= ParseFlags.UtcSortPattern;
+ }
+ break;
+ case 'U': // Universal time format with culture-dependent format.
+ parseInfo.calendar = GregorianCalendar.GetDefaultInstance();
+ result.flags |= ParseFlags.TimeZoneUsed;
+ result.timeZoneOffset = new TimeSpan(0);
+ result.flags |= ParseFlags.TimeZoneUtc;
+ if (dtfi.Calendar.GetType() != typeof(GregorianCalendar))
+ {
+ dtfi = (DateTimeFormatInfo)dtfi.Clone();
+ dtfi.Calendar = GregorianCalendar.GetDefaultInstance();
+ }
+ break;
+ }
+
+ //
+ // Expand the pre-defined format character to the real format from DateTimeFormatInfo.
+ //
+ return (DateTimeFormat.GetRealFormat(format, dtfi));
+ }
+
+
+
+
+
+ // Given a specified format character, parse and update the parsing result.
+ //
+ private static bool ParseByFormat(
+ ref __DTString str,
+ ref __DTString format,
+ ref ParsingInfo parseInfo,
+ DateTimeFormatInfo dtfi,
+ ref DateTimeResult result)
+ {
+ int tokenLen = 0;
+ int tempYear = 0, tempMonth = 0, tempDay = 0, tempDayOfWeek = 0, tempHour = 0, tempMinute = 0, tempSecond = 0;
+ double tempFraction = 0;
+ TM tempTimeMark = 0;
+
+ char ch = format.GetChar();
+
+ switch (ch)
+ {
+ case 'y':
+ tokenLen = format.GetRepeatCount();
+ bool parseResult;
+ if (dtfi.HasForceTwoDigitYears)
+ {
+ parseResult = ParseDigits(ref str, 1, 4, out tempYear);
+ }
+ else
+ {
+ if (tokenLen <= 2)
+ {
+ parseInfo.fUseTwoDigitYear = true;
+ }
+ parseResult = ParseDigits(ref str, tokenLen, out tempYear);
+ }
+ if (!parseResult && parseInfo.fCustomNumberParser)
+ {
+ parseResult = parseInfo.parseNumberDelegate(ref str, tokenLen, out tempYear);
+ }
+ if (!parseResult)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ if (!CheckNewValue(ref result.Year, tempYear, ch, ref result))
+ {
+ return (false);
+ }
+ break;
+ case 'M':
+ tokenLen = format.GetRepeatCount();
+ if (tokenLen <= 2)
+ {
+ if (!ParseDigits(ref str, tokenLen, out tempMonth))
+ {
+ if (!parseInfo.fCustomNumberParser ||
+ !parseInfo.parseNumberDelegate(ref str, tokenLen, out tempMonth))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ }
+ }
+ else
+ {
+ if (tokenLen == 3)
+ {
+ if (!MatchAbbreviatedMonthName(ref str, dtfi, ref tempMonth))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ }
+ else
+ {
+ if (!MatchMonthName(ref str, dtfi, ref tempMonth))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ }
+ result.flags |= ParseFlags.ParsedMonthName;
+ }
+ if (!CheckNewValue(ref result.Month, tempMonth, ch, ref result))
+ {
+ return (false);
+ }
+ break;
+ case 'd':
+ // Day & Day of week
+ tokenLen = format.GetRepeatCount();
+ if (tokenLen <= 2)
+ {
+ // "d" & "dd"
+
+ if (!ParseDigits(ref str, tokenLen, out tempDay))
+ {
+ if (!parseInfo.fCustomNumberParser ||
+ !parseInfo.parseNumberDelegate(ref str, tokenLen, out tempDay))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ }
+ if (!CheckNewValue(ref result.Day, tempDay, ch, ref result))
+ {
+ return (false);
+ }
+ }
+ else
+ {
+ if (tokenLen == 3)
+ {
+ // "ddd"
+ if (!MatchAbbreviatedDayName(ref str, dtfi, ref tempDayOfWeek))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ }
+ else
+ {
+ // "dddd*"
+ if (!MatchDayName(ref str, dtfi, ref tempDayOfWeek))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ }
+ if (!CheckNewValue(ref parseInfo.dayOfWeek, tempDayOfWeek, ch, ref result))
+ {
+ return (false);
+ }
+ }
+ break;
+ case 'g':
+ tokenLen = format.GetRepeatCount();
+ // Put the era value in result.era.
+ if (!MatchEraName(ref str, dtfi, ref result.era))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ break;
+ case 'h':
+ parseInfo.fUseHour12 = true;
+ tokenLen = format.GetRepeatCount();
+ if (!ParseDigits(ref str, (tokenLen < 2 ? 1 : 2), out tempHour))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ if (!CheckNewValue(ref result.Hour, tempHour, ch, ref result))
+ {
+ return (false);
+ }
+ break;
+ case 'H':
+ tokenLen = format.GetRepeatCount();
+ if (!ParseDigits(ref str, (tokenLen < 2 ? 1 : 2), out tempHour))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ if (!CheckNewValue(ref result.Hour, tempHour, ch, ref result))
+ {
+ return (false);
+ }
+ break;
+ case 'm':
+ tokenLen = format.GetRepeatCount();
+ if (!ParseDigits(ref str, (tokenLen < 2 ? 1 : 2), out tempMinute))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ if (!CheckNewValue(ref result.Minute, tempMinute, ch, ref result))
+ {
+ return (false);
+ }
+ break;
+ case 's':
+ tokenLen = format.GetRepeatCount();
+ if (!ParseDigits(ref str, (tokenLen < 2 ? 1 : 2), out tempSecond))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ if (!CheckNewValue(ref result.Second, tempSecond, ch, ref result))
+ {
+ return (false);
+ }
+ break;
+ case 'f':
+ case 'F':
+ tokenLen = format.GetRepeatCount();
+ if (tokenLen <= DateTimeFormat.MaxSecondsFractionDigits)
+ {
+ if (!ParseFractionExact(ref str, tokenLen, ref tempFraction))
+ {
+ if (ch == 'f')
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ }
+ if (result.fraction < 0)
+ {
+ result.fraction = tempFraction;
+ }
+ else
+ {
+ if (tempFraction != result.fraction)
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_RepeatDateTimePattern", ch);
+ return (false);
+ }
+ }
+ }
+ else
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ break;
+ case 't':
+ // AM/PM designator
+ tokenLen = format.GetRepeatCount();
+ if (tokenLen == 1)
+ {
+ if (!MatchAbbreviatedTimeMark(ref str, dtfi, ref tempTimeMark))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ }
+ else
+ {
+ if (!MatchTimeMark(ref str, dtfi, ref tempTimeMark))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ }
+
+ if (parseInfo.timeMark == TM.NotSet)
+ {
+ parseInfo.timeMark = tempTimeMark;
+ }
+ else
+ {
+ if (parseInfo.timeMark != tempTimeMark)
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_RepeatDateTimePattern", ch);
+ return (false);
+ }
+ }
+ break;
+ case 'z':
+ // timezone offset
+ tokenLen = format.GetRepeatCount();
+ {
+ TimeSpan tempTimeZoneOffset = new TimeSpan(0);
+ if (!ParseTimeZoneOffset(ref str, tokenLen, ref tempTimeZoneOffset))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ if ((result.flags & ParseFlags.TimeZoneUsed) != 0 && tempTimeZoneOffset != result.timeZoneOffset)
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_RepeatDateTimePattern", 'z');
+ return (false);
+ }
+ result.timeZoneOffset = tempTimeZoneOffset;
+ result.flags |= ParseFlags.TimeZoneUsed;
+ }
+ break;
+ case 'Z':
+ if ((result.flags & ParseFlags.TimeZoneUsed) != 0 && result.timeZoneOffset != TimeSpan.Zero)
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_RepeatDateTimePattern", 'Z');
+ return (false);
+ }
+
+ result.flags |= ParseFlags.TimeZoneUsed;
+ result.timeZoneOffset = new TimeSpan(0);
+ result.flags |= ParseFlags.TimeZoneUtc;
+
+ // The updating of the indexes is to reflect that ParseExact MatchXXX methods assume that
+ // they need to increment the index and Parse GetXXX do not. Since we are calling a Parse
+ // method from inside ParseExact we need to adjust this. Long term, we should try to
+ // eliminate this discrepancy.
+ str.Index++;
+ if (!GetTimeZoneName(ref str))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ str.Index--;
+ break;
+ case 'K':
+ // This should parse either as a blank, the 'Z' character or a local offset like "-07:00"
+ if (str.Match('Z'))
+ {
+ if ((result.flags & ParseFlags.TimeZoneUsed) != 0 && result.timeZoneOffset != TimeSpan.Zero)
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_RepeatDateTimePattern", 'K');
+ return (false);
+ }
+
+ result.flags |= ParseFlags.TimeZoneUsed;
+ result.timeZoneOffset = new TimeSpan(0);
+ result.flags |= ParseFlags.TimeZoneUtc;
+ }
+ else if (str.Match('+') || str.Match('-'))
+ {
+ str.Index--; // Put the character back for the parser
+ TimeSpan tempTimeZoneOffset = new TimeSpan(0);
+ if (!ParseTimeZoneOffset(ref str, 3, ref tempTimeZoneOffset))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return (false);
+ }
+ if ((result.flags & ParseFlags.TimeZoneUsed) != 0 && tempTimeZoneOffset != result.timeZoneOffset)
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_RepeatDateTimePattern", 'K');
+ return (false);
+ }
+ result.timeZoneOffset = tempTimeZoneOffset;
+ result.flags |= ParseFlags.TimeZoneUsed;
+ }
+ // Otherwise it is unspecified and we consume no characters
+ break;
+ case ':':
+ // We match the separator in time pattern with the character in the time string if both equal to ':' or the date separator is matching the characters in the date string
+ // We have to exclude the case when the time separator is more than one character and starts with ':' something like "::" for instance.
+ if (((dtfi.TimeSeparator.Length > 1 && dtfi.TimeSeparator[0] == ':') || !str.Match(':')) &&
+ !str.Match(dtfi.TimeSeparator))
+ {
+ // A time separator is expected.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ break;
+ case '/':
+ // We match the separator in date pattern with the character in the date string if both equal to '/' or the date separator is matching the characters in the date string
+ // We have to exclude the case when the date separator is more than one character and starts with '/' something like "//" for instance.
+ if (((dtfi.DateSeparator.Length > 1 && dtfi.DateSeparator[0] == '/') || !str.Match('/')) &&
+ !str.Match(dtfi.DateSeparator))
+ {
+ // A date separator is expected.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ break;
+ case '\"':
+ case '\'':
+ StringBuilder enquotedString = new StringBuilder();
+ // Use ParseQuoteString so that we can handle escape characters within the quoted string.
+ if (!TryParseQuoteString(format.Value, format.Index, enquotedString, out tokenLen))
+ {
+ result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_BadQuote", ch);
+ return (false);
+ }
+ format.Index += tokenLen - 1;
+
+ // Some cultures uses space in the quoted string. E.g. Spanish has long date format as:
+ // "dddd, dd' de 'MMMM' de 'yyyy". When inner spaces flag is set, we should skip whitespaces if there is space
+ // in the quoted string.
+ String quotedStr = enquotedString.ToString();
+
+ for (int i = 0; i < quotedStr.Length; i++)
+ {
+ if (quotedStr[i] == ' ' && parseInfo.fAllowInnerWhite)
+ {
+ str.SkipWhiteSpaces();
+ }
+ else if (!str.Match(quotedStr[i]))
+ {
+ // Can not find the matching quoted string.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ }
+
+ // The "r" and "u" formats incorrectly quoted 'GMT' and 'Z', respectively. We cannot
+ // correct this mistake for DateTime.ParseExact for compatibility reasons, but we can
+ // fix it for DateTimeOffset.ParseExact as DateTimeOffset has not been publically released
+ // with this issue.
+ if ((result.flags & ParseFlags.CaptureOffset) != 0)
+ {
+ if ((result.flags & ParseFlags.Rfc1123Pattern) != 0 && quotedStr == GMTName)
+ {
+ result.flags |= ParseFlags.TimeZoneUsed;
+ result.timeZoneOffset = TimeSpan.Zero;
+ }
+ else if ((result.flags & ParseFlags.UtcSortPattern) != 0 && quotedStr == ZuluName)
+ {
+ result.flags |= ParseFlags.TimeZoneUsed;
+ result.timeZoneOffset = TimeSpan.Zero;
+ }
+ }
+
+ break;
+ case '%':
+ // Skip this so we can get to the next pattern character.
+ // Used in case like "%d", "%y"
+
+ // Make sure the next character is not a '%' again.
+ if (format.Index >= format.Value.Length - 1 || format.Value[format.Index + 1] == '%')
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadFormatSpecifier", null);
+ return false;
+ }
+ break;
+ case '\\':
+ // Escape character. For example, "\d".
+ // Get the next character in format, and see if we can
+ // find a match in str.
+ if (format.GetNext())
+ {
+ if (!str.Match(format.GetChar()))
+ {
+ // Can not find a match for the escaped character.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ }
+ else
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadFormatSpecifier", null);
+ return false;
+ }
+ break;
+ case '.':
+ if (!str.Match(ch))
+ {
+ if (format.GetNext())
+ {
+ // If we encounter the pattern ".F", and the dot is not present, it is an optional
+ // second fraction and we can skip this format.
+ if (format.Match('F'))
+ {
+ format.GetRepeatCount();
+ break;
+ }
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ break;
+ default:
+ if (ch == ' ')
+ {
+ if (parseInfo.fAllowInnerWhite)
+ {
+ // Skip whitespaces if AllowInnerWhite.
+ // Do nothing here.
+ }
+ else
+ {
+ if (!str.Match(ch))
+ {
+ // If the space does not match, and trailing space is allowed, we do
+ // one more step to see if the next format character can lead to
+ // successful parsing.
+ // This is used to deal with special case that a empty string can match
+ // a specific pattern.
+ // The example here is af-ZA, which has a time format like "hh:mm:ss tt". However,
+ // its AM symbol is "" (empty string). If fAllowTrailingWhite is used, and time is in
+ // the AM, we will trim the whitespaces at the end, which will lead to a failure
+ // when we are trying to match the space before "tt".
+ if (parseInfo.fAllowTrailingWhite)
+ {
+ if (format.GetNext())
+ {
+ if (ParseByFormat(ref str, ref format, ref parseInfo, dtfi, ref result))
+ {
+ return (true);
+ }
+ }
+ }
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ // Found a macth.
+ }
+ }
+ else
+ {
+ if (format.MatchSpecifiedWord(GMTName))
+ {
+ format.Index += (GMTName.Length - 1);
+ // Found GMT string in format. This means the DateTime string
+ // is in GMT timezone.
+ result.flags |= ParseFlags.TimeZoneUsed;
+ result.timeZoneOffset = TimeSpan.Zero;
+ if (!str.Match(GMTName))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ }
+ else if (!str.Match(ch))
+ {
+ // ch is expected.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ }
+ break;
+ } // switch
+ return (true);
+ }
+
+ //
+ // The pos should point to a quote character. This method will
+ // get the string enclosed by the quote character.
+ //
+ internal static bool TryParseQuoteString(String format, int pos, StringBuilder result, out int returnValue)
+ {
+ //
+ // NOTE : pos will be the index of the quote character in the 'format' string.
+ //
+ returnValue = 0;
+ int formatLen = format.Length;
+ int beginPos = pos;
+ char quoteChar = format[pos++]; // Get the character used to quote the following string.
+
+ bool foundQuote = false;
+ while (pos < formatLen)
+ {
+ char ch = format[pos++];
+ if (ch == quoteChar)
+ {
+ foundQuote = true;
+ break;
+ }
+ else if (ch == '\\')
+ {
+ // The following are used to support escaped character.
+ // Escaped character is also supported in the quoted string.
+ // Therefore, someone can use a format like "'minute:' mm\"" to display:
+ // minute: 45"
+ // because the second double quote is escaped.
+ if (pos < formatLen)
+ {
+ result.Append(format[pos++]);
+ }
+ else
+ {
+ //
+ // This means that '\' is at the end of the formatting string.
+ //
+ return false;
+ }
+ }
+ else
+ {
+ result.Append(ch);
+ }
+ }
+
+ if (!foundQuote)
+ {
+ // Here we can't find the matching quote.
+ return false;
+ }
+
+ //
+ // Return the character count including the begin/end quote characters and enclosed string.
+ //
+ returnValue = (pos - beginPos);
+ return true;
+ }
+
+
+
+
+ /*=================================DoStrictParse==================================
+ **Action: Do DateTime parsing using the format in formatParam.
+ **Returns: The parsed DateTime.
+ **Arguments:
+ **Exceptions:
+ **
+ **Notes:
+ ** When the following general formats are used, InvariantInfo is used in dtfi:
+ ** 'r', 'R', 's'.
+ ** When the following general formats are used, the time is assumed to be in Universal time.
+ **
+ **Limitations:
+ ** Only GregarianCalendar is supported for now.
+ ** Only support GMT timezone.
+ ==============================================================================*/
+
+ private static bool DoStrictParse(
+ String s,
+ String formatParam,
+ DateTimeStyles styles,
+ DateTimeFormatInfo dtfi,
+ ref DateTimeResult result)
+ {
+ ParsingInfo parseInfo = new ParsingInfo();
+ parseInfo.Init();
+
+ parseInfo.calendar = dtfi.Calendar;
+ parseInfo.fAllowInnerWhite = ((styles & DateTimeStyles.AllowInnerWhite) != 0);
+ parseInfo.fAllowTrailingWhite = ((styles & DateTimeStyles.AllowTrailingWhite) != 0);
+
+ // We need the original values of the following two below.
+ String originalFormat = formatParam;
+
+ if (formatParam.Length == 1)
+ {
+ if (((result.flags & ParseFlags.CaptureOffset) != 0) && formatParam[0] == 'U')
+ {
+ // The 'U' format is not allowed for DateTimeOffset
+ result.SetFailure(ParseFailureKind.Format, "Format_BadFormatSpecifier", null);
+ return false;
+ }
+ formatParam = ExpandPredefinedFormat(formatParam, ref dtfi, ref parseInfo, ref result);
+ }
+
+ bool bTimeOnly = false;
+ result.calendar = parseInfo.calendar;
+
+ if (parseInfo.calendar.ID == CalendarId.HEBREW)
+ {
+ parseInfo.parseNumberDelegate = m_hebrewNumberParser;
+ parseInfo.fCustomNumberParser = true;
+ }
+
+ // Reset these values to negative one so that we could throw exception
+ // if we have parsed every item twice.
+ result.Hour = result.Minute = result.Second = -1;
+
+ __DTString format = new __DTString(formatParam, dtfi, false);
+ __DTString str = new __DTString(s, dtfi, false);
+
+ if (parseInfo.fAllowTrailingWhite)
+ {
+ // Trim trailing spaces if AllowTrailingWhite.
+ format.TrimTail();
+ format.RemoveTrailingInQuoteSpaces();
+ str.TrimTail();
+ }
+
+ if ((styles & DateTimeStyles.AllowLeadingWhite) != 0)
+ {
+ format.SkipWhiteSpaces();
+ format.RemoveLeadingInQuoteSpaces();
+ str.SkipWhiteSpaces();
+ }
+
+ //
+ // Scan every character in format and match the pattern in str.
+ //
+ while (format.GetNext())
+ {
+ // We trim inner spaces here, so that we will not eat trailing spaces when
+ // AllowTrailingWhite is not used.
+ if (parseInfo.fAllowInnerWhite)
+ {
+ str.SkipWhiteSpaces();
+ }
+ if (!ParseByFormat(ref str, ref format, ref parseInfo, dtfi, ref result))
+ {
+ return (false);
+ }
+ }
+
+ if (str.Index < str.Value.Length - 1)
+ {
+ // There are still remaining character in str.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+
+ if (parseInfo.fUseTwoDigitYear && ((dtfi.FormatFlags & DateTimeFormatFlags.UseHebrewRule) == 0))
+ {
+ // A two digit year value is expected. Check if the parsed year value is valid.
+ if (result.Year >= 100)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ try
+ {
+ result.Year = parseInfo.calendar.ToFourDigitYear(result.Year);
+ }
+ catch (ArgumentOutOfRangeException e)
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", e);
+ return false;
+ }
+ }
+
+ if (parseInfo.fUseHour12)
+ {
+ if (parseInfo.timeMark == TM.NotSet)
+ {
+ // hh is used, but no AM/PM designator is specified.
+ // Assume the time is AM.
+ // Don't throw exceptions in here becasue it is very confusing for the caller.
+ // I always got confused myself when I use "hh:mm:ss" to parse a time string,
+ // and ParseExact() throws on me (because I didn't use the 24-hour clock 'HH').
+ parseInfo.timeMark = TM.AM;
+ }
+ if (result.Hour > 12)
+ {
+ // AM/PM is used, but the value for HH is too big.
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ if (parseInfo.timeMark == TM.AM)
+ {
+ if (result.Hour == 12)
+ {
+ result.Hour = 0;
+ }
+ }
+ else
+ {
+ result.Hour = (result.Hour == 12) ? 12 : result.Hour + 12;
+ }
+ }
+ else
+ {
+ // Military (24-hour time) mode
+ //
+ // AM cannot be set with a 24-hour time like 17:15.
+ // PM cannot be set with a 24-hour time like 03:15.
+ if ((parseInfo.timeMark == TM.AM && result.Hour >= 12)
+ || (parseInfo.timeMark == TM.PM && result.Hour < 12))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
+ return false;
+ }
+ }
+
+
+ // Check if the parased string only contains hour/minute/second values.
+ bTimeOnly = (result.Year == -1 && result.Month == -1 && result.Day == -1);
+ if (!CheckDefaultDateTime(ref result, ref parseInfo.calendar, styles))
+ {
+ return false;
+ }
+
+ if (!bTimeOnly && dtfi.HasYearMonthAdjustment)
+ {
+ if (!dtfi.YearMonthAdjustment(ref result.Year, ref result.Month, ((result.flags & ParseFlags.ParsedMonthName) != 0)))
+ {
+ result.SetFailure(ParseFailureKind.FormatBadDateTimeCalendar, "Format_BadDateTimeCalendar", null);
+ return false;
+ }
+ }
+ if (!parseInfo.calendar.TryToDateTime(result.Year, result.Month, result.Day,
+ result.Hour, result.Minute, result.Second, 0, result.era, out result.parsedDate))
+ {
+ result.SetFailure(ParseFailureKind.FormatBadDateTimeCalendar, "Format_BadDateTimeCalendar", null);
+ return false;
+ }
+ if (result.fraction > 0)
+ {
+ result.parsedDate = result.parsedDate.AddTicks((long)Math.Round(result.fraction * Calendar.TicksPerSecond));
+ }
+
+ //
+ // We have to check day of week before we adjust to the time zone.
+ // It is because the value of day of week may change after adjusting
+ // to the time zone.
+ //
+ if (parseInfo.dayOfWeek != -1)
+ {
+ //
+ // Check if day of week is correct.
+ //
+ if (parseInfo.dayOfWeek != (int)parseInfo.calendar.GetDayOfWeek(result.parsedDate))
+ {
+ result.SetFailure(ParseFailureKind.Format, "Format_BadDayOfWeek", null);
+ return false;
+ }
+ }
+
+
+ if (!DetermineTimeZoneAdjustments(ref result, styles, bTimeOnly))
+ {
+ return false;
+ }
+ return true;
+ }
+
+ private static Exception GetDateTimeParseException(ref DateTimeResult result)
+ {
+ switch (result.failure)
+ {
+ case ParseFailureKind.ArgumentNull:
+ return new ArgumentNullException(result.failureArgumentName, SR.GetResourceString(result.failureMessageID));
+ case ParseFailureKind.Format:
+ return new FormatException(SR.GetResourceString(result.failureMessageID));
+ case ParseFailureKind.FormatWithParameter:
+ return new FormatException(SR.Format(SR.GetResourceString(result.failureMessageID), result.failureMessageFormatArgument));
+ case ParseFailureKind.FormatBadDateTimeCalendar:
+ return new FormatException(SR.Format(SR.GetResourceString(result.failureMessageID), result.calendar));
+ default:
+ Debug.Assert(false, "Unkown DateTimeParseFailure: " + result);
+ return null;
+ }
+ }
+
+ // Builds with _LOGGING defined (x86dbg, amd64chk, etc) support tracing
+ // Set the following internal-only/unsupported environment variables to enable DateTime tracing to the console:
+ //
+ // COMPlus_LogEnable=1
+ // COMPlus_LogToConsole=1
+ // COMPlus_LogLevel=9
+ // COMPlus_ManagedLogFacility=0x00001000
+ [Pure]
+ [Conditional("_LOGGING")]
+ internal static void LexTraceExit(string message, DS dps)
+ {
+#if _LOGGING
+ if (!_tracingEnabled)
+ return;
+ BCLDebug.Trace("DATETIME", "[DATETIME] Lex return {0}, DS.{1}", message, dps);
+#endif // _LOGGING
+ }
+ [Pure]
+ [Conditional("_LOGGING")]
+ internal static void PTSTraceExit(DS dps, bool passed)
+ {
+#if _LOGGING
+ if (!_tracingEnabled)
+ return;
+ BCLDebug.Trace("DATETIME", "[DATETIME] ProcessTerminalState {0} @ DS.{1}", passed ? "passed" : "failed", dps);
+#endif // _LOGGING
+ }
+ [Pure]
+ [Conditional("_LOGGING")]
+ internal static void TPTraceExit(string message, DS dps)
+ {
+#if _LOGGING
+ if (!_tracingEnabled)
+ return;
+ BCLDebug.Trace("DATETIME", "[DATETIME] TryParse return {0}, DS.{1}", message, dps);
+#endif // _LOGGING
+ }
+ [Pure]
+ [Conditional("_LOGGING")]
+ internal static void DTFITrace(DateTimeFormatInfo dtfi)
+ {
+#if _LOGGING
+ if (!_tracingEnabled)
+ return;
+
+ BCLDebug.Trace("DATETIME", "[DATETIME] DateTimeFormatInfo Properties");
+#if !FEATURE_COREFX_GLOBALIZATION
+ BCLDebug.Trace("DATETIME", " NativeCalendarName {0}", Hex(dtfi.NativeCalendarName));
+#endif
+ BCLDebug.Trace("DATETIME", " AMDesignator {0}", Hex(dtfi.AMDesignator));
+ BCLDebug.Trace("DATETIME", " PMDesignator {0}", Hex(dtfi.PMDesignator));
+ BCLDebug.Trace("DATETIME", " TimeSeparator {0}", Hex(dtfi.TimeSeparator));
+ BCLDebug.Trace("DATETIME", " AbbrvDayNames {0}", Hex(dtfi.AbbreviatedDayNames));
+ BCLDebug.Trace("DATETIME", " ShortestDayNames {0}", Hex(dtfi.ShortestDayNames));
+ BCLDebug.Trace("DATETIME", " DayNames {0}", Hex(dtfi.DayNames));
+ BCLDebug.Trace("DATETIME", " AbbrvMonthNames {0}", Hex(dtfi.AbbreviatedMonthNames));
+ BCLDebug.Trace("DATETIME", " MonthNames {0}", Hex(dtfi.MonthNames));
+ BCLDebug.Trace("DATETIME", " AbbrvMonthGenNames {0}", Hex(dtfi.AbbreviatedMonthGenitiveNames));
+ BCLDebug.Trace("DATETIME", " MonthGenNames {0}", Hex(dtfi.MonthGenitiveNames));
+#endif // _LOGGING
+ }
+#if _LOGGING
+ [Pure]
+ // return a string in the form: "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
+ internal static string Hex(string[] strs)
+ {
+ if (strs == null || strs.Length == 0)
+ return String.Empty;
+ if (strs.Length == 1)
+ return Hex(strs[0]);
+
+ int curLineLength = 0;
+ int maxLineLength = 55;
+ int newLinePadding = 20;
+
+
+ //invariant: strs.Length >= 2
+ StringBuilder buffer = new StringBuilder();
+ buffer.Append(Hex(strs[0]));
+ curLineLength = buffer.Length;
+ String s;
+
+ for (int i = 1; i < strs.Length - 1; i++)
+ {
+ s = Hex(strs[i]);
+
+ if (s.Length > maxLineLength || (curLineLength + s.Length + 2) > maxLineLength)
+ {
+ buffer.Append(',');
+ buffer.Append(Environment.NewLine);
+ buffer.Append(' ', newLinePadding);
+ curLineLength = 0;
+ }
+ else
+ {
+ buffer.Append(", ");
+ curLineLength += 2;
+ }
+ buffer.Append(s);
+ curLineLength += s.Length;
+ }
+
+ buffer.Append(',');
+ s = Hex(strs[strs.Length - 1]);
+ if (s.Length > maxLineLength || (curLineLength + s.Length + 6) > maxLineLength)
+ {
+ buffer.Append(Environment.NewLine);
+ buffer.Append(' ', newLinePadding);
+ }
+ else
+ {
+ buffer.Append(' ');
+ }
+ buffer.Append(s);
+ return buffer.ToString();
+ }
+ [Pure]
+ // return a string in the form: "Sun"
+ internal static string Hex(string str)
+ {
+ StringBuilder buffer = new StringBuilder();
+ buffer.Append("\"");
+ for (int i = 0; i < str.Length; i++)
+ {
+ if (str[i] <= '\x007f')
+ buffer.Append(str[i]);
+ else
+ buffer.Append("\\u" + ((int)str[i]).ToString("x4", CultureInfo.InvariantCulture));
+ }
+ buffer.Append("\"");
+ return buffer.ToString();
+ }
+ [Pure]
+ // return an unicode escaped string form of char c
+ internal static String Hex(char c)
+ {
+ if (c <= '\x007f')
+ return c.ToString(CultureInfo.InvariantCulture);
+ else
+ return "\\u" + ((int)c).ToString("x4", CultureInfo.InvariantCulture);
+ }
+
+ internal static bool _tracingEnabled = BCLDebug.CheckEnabled("DATETIME");
+#endif // _LOGGING
+ }
+
+
+ //
+ // This is a string parsing helper which wraps a String object.
+ // It has a Index property which tracks
+ // the current parsing pointer of the string.
+ //
+ internal
+ struct __DTString
+ {
+ //
+ // Value propery: stores the real string to be parsed.
+ //
+ internal String Value;
+
+ //
+ // Index property: points to the character that we are currently parsing.
+ //
+ internal int Index;
+
+ // The length of Value string.
+ internal int len;
+
+ // The current chracter to be looked at.
+ internal char m_current;
+
+ private CompareInfo m_info;
+ // Flag to indicate if we encouter an digit, we should check for token or not.
+ // In some cultures, such as mn-MN, it uses "\x0031\x00a0\x0434\x04af\x0433\x044d\x044d\x0440\x00a0\x0441\x0430\x0440" in month names.
+ private bool m_checkDigitToken;
+
+ internal __DTString(String str, DateTimeFormatInfo dtfi, bool checkDigitToken) : this(str, dtfi)
+ {
+ m_checkDigitToken = checkDigitToken;
+ }
+
+ internal __DTString(String str, DateTimeFormatInfo dtfi)
+ {
+ Index = -1;
+ Value = str;
+ len = Value.Length;
+
+ m_current = '\0';
+ if (dtfi != null)
+ {
+ m_info = dtfi.CompareInfo;
+ m_checkDigitToken = ((dtfi.FormatFlags & DateTimeFormatFlags.UseDigitPrefixInTokens) != 0);
+ }
+ else
+ {
+ m_info = CultureInfo.CurrentCulture.CompareInfo;
+ m_checkDigitToken = false;
+ }
+ }
+
+ internal CompareInfo CompareInfo
+ {
+ get { return m_info; }
+ }
+
+ //
+ // Advance the Index.
+ // Return true if Index is NOT at the end of the string.
+ //
+ // Typical usage:
+ // while (str.GetNext())
+ // {
+ // char ch = str.GetChar()
+ // }
+ internal bool GetNext()
+ {
+ Index++;
+ if (Index < len)
+ {
+ m_current = Value[Index];
+ return (true);
+ }
+ return (false);
+ }
+
+ internal bool AtEnd()
+ {
+ return Index < len ? false : true;
+ }
+
+ internal bool Advance(int count)
+ {
+ Debug.Assert(Index + count <= len, "__DTString::Advance: Index + count <= len");
+ Index += count;
+ if (Index < len)
+ {
+ m_current = Value[Index];
+ return (true);
+ }
+ return (false);
+ }
+
+
+ // Used by DateTime.Parse() to get the next token.
+ internal void GetRegularToken(out TokenType tokenType, out int tokenValue, DateTimeFormatInfo dtfi)
+ {
+ tokenValue = 0;
+ if (Index >= len)
+ {
+ tokenType = TokenType.EndOfString;
+ return;
+ }
+
+ tokenType = TokenType.UnknownToken;
+
+ Start:
+ if (DateTimeParse.IsDigit(m_current))
+ {
+ // This is a digit.
+ tokenValue = m_current - '0';
+ int value;
+ int start = Index;
+
+ //
+ // Collect other digits.
+ //
+ while (++Index < len)
+ {
+ m_current = Value[Index];
+ value = m_current - '0';
+ if (value >= 0 && value <= 9)
+ {
+ tokenValue = tokenValue * 10 + value;
+ }
+ else
+ {
+ break;
+ }
+ }
+ if (Index - start > DateTimeParse.MaxDateTimeNumberDigits)
+ {
+ tokenType = TokenType.NumberToken;
+ tokenValue = -1;
+ }
+ else if (Index - start < 3)
+ {
+ tokenType = TokenType.NumberToken;
+ }
+ else
+ {
+ // If there are more than 3 digits, assume that it's a year value.
+ tokenType = TokenType.YearNumberToken;
+ }
+ if (m_checkDigitToken)
+ {
+ int save = Index;
+ char saveCh = m_current;
+ // Re-scan using the staring Index to see if this is a token.
+ Index = start; // To include the first digit.
+ m_current = Value[Index];
+ TokenType tempType;
+ int tempValue;
+ // This DTFI has tokens starting with digits.
+ // E.g. mn-MN has month name like "\x0031\x00a0\x0434\x04af\x0433\x044d\x044d\x0440\x00a0\x0441\x0430\x0440"
+ if (dtfi.Tokenize(TokenType.RegularTokenMask, out tempType, out tempValue, ref this))
+ {
+ tokenType = tempType;
+ tokenValue = tempValue;
+ // This is a token, so the Index has been advanced propertly in DTFI.Tokenizer().
+ }
+ else
+ {
+ // Use the number token value.
+ // Restore the index.
+ Index = save;
+ m_current = saveCh;
+ }
+ }
+ }
+ else if (Char.IsWhiteSpace(m_current))
+ {
+ // Just skip to the next character.
+ while (++Index < len)
+ {
+ m_current = Value[Index];
+ if (!(Char.IsWhiteSpace(m_current)))
+ {
+ goto Start;
+ }
+ }
+ // We have reached the end of string.
+ tokenType = TokenType.EndOfString;
+ }
+ else
+ {
+ dtfi.Tokenize(TokenType.RegularTokenMask, out tokenType, out tokenValue, ref this);
+ }
+ }
+
+ internal TokenType GetSeparatorToken(DateTimeFormatInfo dtfi, out int indexBeforeSeparator, out char charBeforeSeparator)
+ {
+ indexBeforeSeparator = Index;
+ charBeforeSeparator = m_current;
+ TokenType tokenType;
+ if (!SkipWhiteSpaceCurrent())
+ {
+ // Reach the end of the string.
+ return (TokenType.SEP_End);
+ }
+ if (!DateTimeParse.IsDigit(m_current))
+ {
+ // Not a digit. Tokenize it.
+ int tokenValue;
+ bool found = dtfi.Tokenize(TokenType.SeparatorTokenMask, out tokenType, out tokenValue, ref this);
+ if (!found)
+ {
+ tokenType = TokenType.SEP_Space;
+ }
+ }
+ else
+ {
+ // Do nothing here. If we see a number, it will not be a separator. There is no need wasting time trying to find the
+ // separator token.
+ tokenType = TokenType.SEP_Space;
+ }
+ return (tokenType);
+ }
+
+ internal bool MatchSpecifiedWord(String target)
+ {
+ return MatchSpecifiedWord(target, target.Length + Index);
+ }
+
+ internal bool MatchSpecifiedWord(String target, int endIndex)
+ {
+ int count = endIndex - Index;
+
+ if (count != target.Length)
+ {
+ return false;
+ }
+
+ if (Index + count > len)
+ {
+ return false;
+ }
+
+ return (m_info.Compare(Value, Index, count, target, 0, count, CompareOptions.IgnoreCase) == 0);
+ }
+
+ private static Char[] WhiteSpaceChecks = new Char[] { ' ', '\u00A0' };
+
+ internal bool MatchSpecifiedWords(String target, bool checkWordBoundary, ref int matchLength)
+ {
+ int valueRemaining = Value.Length - Index;
+ matchLength = target.Length;
+
+ if (matchLength > valueRemaining || m_info.Compare(Value, Index, matchLength, target, 0, matchLength, CompareOptions.IgnoreCase) != 0)
+ {
+ // Check word by word
+ int targetPosition = 0; // Where we are in the target string
+ int thisPosition = Index; // Where we are in this string
+ int wsIndex = target.IndexOfAny(WhiteSpaceChecks, targetPosition);
+ if (wsIndex == -1)
+ {
+ return false;
+ }
+ do
+ {
+ int segmentLength = wsIndex - targetPosition;
+ if (thisPosition >= Value.Length - segmentLength)
+ { // Subtraction to prevent overflow.
+ return false;
+ }
+ if (segmentLength == 0)
+ {
+ // If segmentLength == 0, it means that we have leading space in the target string.
+ // In that case, skip the leading spaces in the target and this string.
+ matchLength--;
+ }
+ else
+ {
+ // Make sure we also have whitespace in the input string
+ if (!Char.IsWhiteSpace(Value[thisPosition + segmentLength]))
+ {
+ return false;
+ }
+ if (m_info.Compare(Value, thisPosition, segmentLength, target, targetPosition, segmentLength, CompareOptions.IgnoreCase) != 0)
+ {
+ return false;
+ }
+ // Advance the input string
+ thisPosition = thisPosition + segmentLength + 1;
+ }
+ // Advance our target string
+ targetPosition = wsIndex + 1;
+
+
+ // Skip past multiple whitespace
+ while (thisPosition < Value.Length && Char.IsWhiteSpace(Value[thisPosition]))
+ {
+ thisPosition++;
+ matchLength++;
+ }
+ } while ((wsIndex = target.IndexOfAny(WhiteSpaceChecks, targetPosition)) >= 0);
+ // now check the last segment;
+ if (targetPosition < target.Length)
+ {
+ int segmentLength = target.Length - targetPosition;
+ if (thisPosition > Value.Length - segmentLength)
+ {
+ return false;
+ }
+ if (m_info.Compare(Value, thisPosition, segmentLength, target, targetPosition, segmentLength, CompareOptions.IgnoreCase) != 0)
+ {
+ return false;
+ }
+ }
+ }
+
+ if (checkWordBoundary)
+ {
+ int nextCharIndex = Index + matchLength;
+ if (nextCharIndex < Value.Length)
+ {
+ if (Char.IsLetter(Value[nextCharIndex]))
+ {
+ return (false);
+ }
+ }
+ }
+ return (true);
+ }
+
+ //
+ // Check to see if the string starting from Index is a prefix of
+ // str.
+ // If a match is found, true value is returned and Index is updated to the next character to be parsed.
+ // Otherwise, Index is unchanged.
+ //
+ internal bool Match(String str)
+ {
+ if (++Index >= len)
+ {
+ return (false);
+ }
+
+ if (str.Length > (Value.Length - Index))
+ {
+ return false;
+ }
+
+ if (m_info.Compare(Value, Index, str.Length, str, 0, str.Length, CompareOptions.Ordinal) == 0)
+ {
+ // Update the Index to the end of the matching string.
+ // So the following GetNext()/Match() opeartion will get
+ // the next character to be parsed.
+ Index += (str.Length - 1);
+ return (true);
+ }
+ return (false);
+ }
+
+ internal bool Match(char ch)
+ {
+ if (++Index >= len)
+ {
+ return (false);
+ }
+ if (Value[Index] == ch)
+ {
+ m_current = ch;
+ return (true);
+ }
+ Index--;
+ return (false);
+ }
+
+ //
+ // Actions: From the current position, try matching the longest word in the specified string array.
+ // E.g. words[] = {"AB", "ABC", "ABCD"}, if the current position points to a substring like "ABC DEF",
+ // MatchLongestWords(words, ref MaxMatchStrLen) will return 1 (the index), and maxMatchLen will be 3.
+ // Returns:
+ // The index that contains the longest word to match
+ // Arguments:
+ // words The string array that contains words to search.
+ // maxMatchStrLen [in/out] the initailized maximum length. This parameter can be used to
+ // find the longest match in two string arrays.
+ //
+ internal int MatchLongestWords(String[] words, ref int maxMatchStrLen)
+ {
+ int result = -1;
+ for (int i = 0; i < words.Length; i++)
+ {
+ String word = words[i];
+ int matchLength = word.Length;
+ if (MatchSpecifiedWords(word, false, ref matchLength))
+ {
+ if (matchLength > maxMatchStrLen)
+ {
+ maxMatchStrLen = matchLength;
+ result = i;
+ }
+ }
+ }
+
+ return (result);
+ }
+
+ //
+ // Get the number of repeat character after the current character.
+ // For a string "hh:mm:ss" at Index of 3. GetRepeatCount() = 2, and Index
+ // will point to the second ':'.
+ //
+ internal int GetRepeatCount()
+ {
+ char repeatChar = Value[Index];
+ int pos = Index + 1;
+ while ((pos < len) && (Value[pos] == repeatChar))
+ {
+ pos++;
+ }
+ int repeatCount = (pos - Index);
+ // Update the Index to the end of the repeated characters.
+ // So the following GetNext() opeartion will get
+ // the next character to be parsed.
+ Index = pos - 1;
+ return (repeatCount);
+ }
+
+ // Return false when end of string is encountered or a non-digit character is found.
+ internal bool GetNextDigit()
+ {
+ if (++Index >= len)
+ {
+ return (false);
+ }
+ return (DateTimeParse.IsDigit(Value[Index]));
+ }
+
+ //
+ // Get the current character.
+ //
+ internal char GetChar()
+ {
+ Debug.Assert(Index >= 0 && Index < len, "Index >= 0 && Index < len");
+ return (Value[Index]);
+ }
+
+ //
+ // Convert the current character to a digit, and return it.
+ //
+ internal int GetDigit()
+ {
+ Debug.Assert(Index >= 0 && Index < len, "Index >= 0 && Index < len");
+ Debug.Assert(DateTimeParse.IsDigit(Value[Index]), "IsDigit(Value[Index])");
+ return (Value[Index] - '0');
+ }
+
+ //
+ // Eat White Space ahead of the current position
+ //
+ // Return false if end of string is encountered.
+ //
+ internal void SkipWhiteSpaces()
+ {
+ // Look ahead to see if the next character
+ // is a whitespace.
+ while (Index + 1 < len)
+ {
+ char ch = Value[Index + 1];
+ if (!Char.IsWhiteSpace(ch))
+ {
+ return;
+ }
+ Index++;
+ }
+ return;
+ }
+
+ //
+ // Skip white spaces from the current position
+ //
+ // Return false if end of string is encountered.
+ //
+ internal bool SkipWhiteSpaceCurrent()
+ {
+ if (Index >= len)
+ {
+ return (false);
+ }
+
+ if (!Char.IsWhiteSpace(m_current))
+ {
+ return (true);
+ }
+
+ while (++Index < len)
+ {
+ m_current = Value[Index];
+ if (!Char.IsWhiteSpace(m_current))
+ {
+ return (true);
+ }
+ // Nothing here.
+ }
+ return (false);
+ }
+
+ internal void TrimTail()
+ {
+ int i = len - 1;
+ while (i >= 0 && Char.IsWhiteSpace(Value[i]))
+ {
+ i--;
+ }
+ Value = Value.Substring(0, i + 1);
+ len = Value.Length;
+ }
+
+ // Trim the trailing spaces within a quoted string.
+ // Call this after TrimTail() is done.
+ internal void RemoveTrailingInQuoteSpaces()
+ {
+ int i = len - 1;
+ if (i <= 1)
+ {
+ return;
+ }
+ char ch = Value[i];
+ // Check if the last character is a quote.
+ if (ch == '\'' || ch == '\"')
+ {
+ if (Char.IsWhiteSpace(Value[i - 1]))
+ {
+ i--;
+ while (i >= 1 && Char.IsWhiteSpace(Value[i - 1]))
+ {
+ i--;
+ }
+ Value = Value.Remove(i, Value.Length - 1 - i);
+ len = Value.Length;
+ }
+ }
+ }
+
+ // Trim the leading spaces within a quoted string.
+ // Call this after the leading spaces before quoted string are trimmed.
+ internal void RemoveLeadingInQuoteSpaces()
+ {
+ if (len <= 2)
+ {
+ return;
+ }
+ int i = 0;
+ char ch = Value[i];
+ // Check if the last character is a quote.
+ if (ch == '\'' || ch == '\"')
+ {
+ while ((i + 1) < len && Char.IsWhiteSpace(Value[i + 1]))
+ {
+ i++;
+ }
+ if (i != 0)
+ {
+ Value = Value.Remove(1, i);
+ len = Value.Length;
+ }
+ }
+ }
+
+ internal DTSubString GetSubString()
+ {
+ DTSubString sub = new DTSubString();
+ sub.index = Index;
+ sub.s = Value;
+ while (Index + sub.length < len)
+ {
+ DTSubStringType currentType;
+ Char ch = Value[Index + sub.length];
+ if (ch >= '0' && ch <= '9')
+ {
+ currentType = DTSubStringType.Number;
+ }
+ else
+ {
+ currentType = DTSubStringType.Other;
+ }
+
+ if (sub.length == 0)
+ {
+ sub.type = currentType;
+ }
+ else
+ {
+ if (sub.type != currentType)
+ {
+ break;
+ }
+ }
+ sub.length++;
+ if (currentType == DTSubStringType.Number)
+ {
+ // Incorporate the number into the value
+ // Limit the digits to prevent overflow
+ if (sub.length > DateTimeParse.MaxDateTimeNumberDigits)
+ {
+ sub.type = DTSubStringType.Invalid;
+ return sub;
+ }
+ int number = ch - '0';
+ Debug.Assert(number >= 0 && number <= 9, "number >= 0 && number <= 9");
+ sub.value = sub.value * 10 + number;
+ }
+ else
+ {
+ // For non numbers, just return this length 1 token. This should be expanded
+ // to more types of thing if this parsing approach is used for things other
+ // than numbers and single characters
+ break;
+ }
+ }
+ if (sub.length == 0)
+ {
+ sub.type = DTSubStringType.End;
+ return sub;
+ }
+
+ return sub;
+ }
+
+ internal void ConsumeSubString(DTSubString sub)
+ {
+ Debug.Assert(sub.index == Index, "sub.index == Index");
+ Debug.Assert(sub.index + sub.length <= len, "sub.index + sub.length <= len");
+ Index = sub.index + sub.length;
+ if (Index < len)
+ {
+ m_current = Value[Index];
+ }
+ }
+ }
+
+ internal enum DTSubStringType
+ {
+ Unknown = 0,
+ Invalid = 1,
+ Number = 2,
+ End = 3,
+ Other = 4,
+ }
+
+ internal struct DTSubString
+ {
+ internal String s;
+ internal Int32 index;
+ internal Int32 length;
+ internal DTSubStringType type;
+ internal Int32 value;
+
+ internal Char this[Int32 relativeIndex]
+ {
+ get
+ {
+ return s[index + relativeIndex];
+ }
+ }
+ }
+
+ //
+ // The buffer to store the parsing token.
+ //
+ internal
+ struct DateTimeToken
+ {
+ internal DateTimeParse.DTT dtt; // Store the token
+ internal TokenType suffix; // Store the CJK Year/Month/Day suffix (if any)
+ internal int num; // Store the number that we are parsing (if any)
+ }
+
+ //
+ // The buffer to store temporary parsing information.
+ //
+ internal
+ unsafe struct DateTimeRawInfo
+ {
+ private int* num;
+ internal int numCount;
+ internal int month;
+ internal int year;
+ internal int dayOfWeek;
+ internal int era;
+ internal DateTimeParse.TM timeMark;
+ internal double fraction;
+ internal bool hasSameDateAndTimeSeparators;
+
+ internal void Init(int* numberBuffer)
+ {
+ month = -1;
+ year = -1;
+ dayOfWeek = -1;
+ era = -1;
+ timeMark = DateTimeParse.TM.NotSet;
+ fraction = -1;
+ num = numberBuffer;
+ }
+ internal unsafe void AddNumber(int value)
+ {
+ num[numCount++] = value;
+ }
+ internal unsafe int GetNumber(int index)
+ {
+ return num[index];
+ }
+ }
+
+ internal enum ParseFailureKind
+ {
+ None = 0,
+ ArgumentNull = 1,
+ Format = 2,
+ FormatWithParameter = 3,
+ FormatBadDateTimeCalendar = 4, // FormatException when ArgumentOutOfRange is thrown by a Calendar.TryToDateTime().
+ };
+
+ [Flags]
+ internal enum ParseFlags
+ {
+ HaveYear = 0x00000001,
+ HaveMonth = 0x00000002,
+ HaveDay = 0x00000004,
+ HaveHour = 0x00000008,
+ HaveMinute = 0x00000010,
+ HaveSecond = 0x00000020,
+ HaveTime = 0x00000040,
+ HaveDate = 0x00000080,
+ TimeZoneUsed = 0x00000100,
+ TimeZoneUtc = 0x00000200,
+ ParsedMonthName = 0x00000400,
+ CaptureOffset = 0x00000800,
+ YearDefault = 0x00001000,
+ Rfc1123Pattern = 0x00002000,
+ UtcSortPattern = 0x00004000,
+ }
+
+ //
+ // This will store the result of the parsing. And it will be eventually
+ // used to construct a DateTime instance.
+ //
+ internal
+ struct DateTimeResult
+ {
+ internal int Year;
+ internal int Month;
+ internal int Day;
+ //
+ // Set time defualt to 00:00:00.
+ //
+ internal int Hour;
+ internal int Minute;
+ internal int Second;
+ internal double fraction;
+
+ internal int era;
+
+ internal ParseFlags flags;
+
+ internal TimeSpan timeZoneOffset;
+
+ internal Calendar calendar;
+
+ internal DateTime parsedDate;
+
+ internal ParseFailureKind failure;
+ internal string failureMessageID;
+ internal object failureMessageFormatArgument;
+ internal string failureArgumentName;
+
+ internal void Init()
+ {
+ Year = -1;
+ Month = -1;
+ Day = -1;
+ fraction = -1;
+ era = -1;
+ }
+
+ internal void SetDate(int year, int month, int day)
+ {
+ Year = year;
+ Month = month;
+ Day = day;
+ }
+ internal void SetFailure(ParseFailureKind failure, string failureMessageID, object failureMessageFormatArgument)
+ {
+ this.failure = failure;
+ this.failureMessageID = failureMessageID;
+ this.failureMessageFormatArgument = failureMessageFormatArgument;
+ }
+
+ internal void SetFailure(ParseFailureKind failure, string failureMessageID, object failureMessageFormatArgument, string failureArgumentName)
+ {
+ this.failure = failure;
+ this.failureMessageID = failureMessageID;
+ this.failureMessageFormatArgument = failureMessageFormatArgument;
+ this.failureArgumentName = failureArgumentName;
+ }
+ }
+
+ // This is the helper data structure used in ParseExact().
+ internal struct ParsingInfo
+ {
+ internal Calendar calendar;
+ internal int dayOfWeek;
+ internal DateTimeParse.TM timeMark;
+
+ internal bool fUseHour12;
+ internal bool fUseTwoDigitYear;
+ internal bool fAllowInnerWhite;
+ internal bool fAllowTrailingWhite;
+ internal bool fCustomNumberParser;
+ internal DateTimeParse.MatchNumberDelegate parseNumberDelegate;
+
+ internal void Init()
+ {
+ dayOfWeek = -1;
+ timeMark = DateTimeParse.TM.NotSet;
+ }
+ }
+
+ //
+ // The type of token that will be returned by DateTimeFormatInfo.Tokenize().
+ //
+ internal enum TokenType
+ {
+ // The valid token should start from 1.
+
+ // Regular tokens. The range is from 0x00 ~ 0xff.
+ NumberToken = 1, // The number. E.g. "12"
+ YearNumberToken = 2, // The number which is considered as year number, which has 3 or more digits. E.g. "2003"
+ Am = 3, // AM timemark. E.g. "AM"
+ Pm = 4, // PM timemark. E.g. "PM"
+ MonthToken = 5, // A word (or words) that represents a month name. E.g. "March"
+ EndOfString = 6, // End of string
+ DayOfWeekToken = 7, // A word (or words) that represents a day of week name. E.g. "Monday" or "Mon"
+ TimeZoneToken = 8, // A word that represents a timezone name. E.g. "GMT"
+ EraToken = 9, // A word that represents a era name. E.g. "A.D."
+ DateWordToken = 10, // A word that can appear in a DateTime string, but serves no parsing semantics. E.g. "de" in Spanish culture.
+ UnknownToken = 11, // An unknown word, which signals an error in parsing.
+ HebrewNumber = 12, // A number that is composed of Hebrew text. Hebrew calendar uses Hebrew digits for year values, month values, and day values.
+ JapaneseEraToken = 13, // Era name for JapaneseCalendar
+ TEraToken = 14, // Era name for TaiwanCalendar
+ IgnorableSymbol = 15, // A separator like "," that is equivalent to whitespace
+
+
+ // Separator tokens.
+ SEP_Unk = 0x100, // Unknown separator.
+ SEP_End = 0x200, // The end of the parsing string.
+ SEP_Space = 0x300, // Whitespace (including comma).
+ SEP_Am = 0x400, // AM timemark. E.g. "AM"
+ SEP_Pm = 0x500, // PM timemark. E.g. "PM"
+ SEP_Date = 0x600, // date separator. E.g. "/"
+ SEP_Time = 0x700, // time separator. E.g. ":"
+ SEP_YearSuff = 0x800, // Chinese/Japanese/Korean year suffix.
+ SEP_MonthSuff = 0x900, // Chinese/Japanese/Korean month suffix.
+ SEP_DaySuff = 0xa00, // Chinese/Japanese/Korean day suffix.
+ SEP_HourSuff = 0xb00, // Chinese/Japanese/Korean hour suffix.
+ SEP_MinuteSuff = 0xc00, // Chinese/Japanese/Korean minute suffix.
+ SEP_SecondSuff = 0xd00, // Chinese/Japanese/Korean second suffix.
+ SEP_LocalTimeMark = 0xe00, // 'T', used in ISO 8601 format.
+ SEP_DateOrOffset = 0xf00, // '-' which could be a date separator or start of a time zone offset
+
+ RegularTokenMask = 0x00ff,
+ SeparatorTokenMask = 0xff00,
+ }
+}
projects / platform / upstream / dotnet / runtime.git / commitdiff