|
private GetRegularToken ( TokenType &tokenType, int &tokenValue, |
||
| tokenType | TokenType | |
| tokenValue | int | |
| dtfi | ||
| return | void | |
private static bool Lex(DateTimeParse.DS dps, ref __DTString str, ref DateTimeToken dtok, ref DateTimeRawInfo raw, ref DateTimeResult result, ref DateTimeFormatInfo dtfi)
{
dtok.dtt = DateTimeParse.DTT.Unk;
TokenType tokenType;
int num;
str.GetRegularToken(out tokenType, out num, dtfi);
switch (tokenType)
{
case TokenType.NumberToken:
case TokenType.YearNumberToken:
{
if (raw.numCount == 3 || num == -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
if (dps == DateTimeParse.DS.T_NNt && str.Index < str.len - 1)
{
char c = str.Value[str.Index];
if (c == '.')
{
DateTimeParse.ParseFraction(ref str, out raw.fraction);
}
}
if ((dps == DateTimeParse.DS.T_NNt || dps == DateTimeParse.DS.T_Nt) && str.Index < str.len - 1 && !DateTimeParse.HandleTimeZone(ref str, ref result))
{
return false;
}
dtok.num = num;
if (tokenType != TokenType.YearNumberToken)
{
int index;
char current;
TokenType separatorToken;
TokenType tokenType2 = separatorToken = str.GetSeparatorToken(dtfi, out index, out current);
if (separatorToken > TokenType.SEP_YearSuff)
{
if (separatorToken <= TokenType.SEP_HourSuff)
{
if (separatorToken == TokenType.SEP_MonthSuff || separatorToken == TokenType.SEP_DaySuff)
{
dtok.dtt = DateTimeParse.DTT.NumDatesuff;
dtok.suffix = tokenType2;
break;
}
if (separatorToken != TokenType.SEP_HourSuff)
{
goto IL_52A;
}
}
else
{
if (separatorToken <= TokenType.SEP_SecondSuff)
{
if (separatorToken != TokenType.SEP_MinuteSuff && separatorToken != TokenType.SEP_SecondSuff)
{
goto IL_52A;
}
}
else
{
if (separatorToken == TokenType.SEP_LocalTimeMark)
{
dtok.dtt = DateTimeParse.DTT.NumLocalTimeMark;
raw.AddNumber(dtok.num);
break;
}
if (separatorToken != TokenType.SEP_DateOrOffset)
{
goto IL_52A;
}
if (DateTimeParse.dateParsingStates[(int)dps][4] == DateTimeParse.DS.ERROR && DateTimeParse.dateParsingStates[(int)dps][3] > DateTimeParse.DS.ERROR)
{
str.Index = index;
str.m_current = current;
dtok.dtt = DateTimeParse.DTT.NumSpace;
}
else
{
dtok.dtt = DateTimeParse.DTT.NumDatesep;
}
raw.AddNumber(dtok.num);
break;
}
}
dtok.dtt = DateTimeParse.DTT.NumTimesuff;
dtok.suffix = tokenType2;
break;
}
if (separatorToken <= TokenType.SEP_Am)
{
if (separatorToken == TokenType.SEP_End)
{
dtok.dtt = DateTimeParse.DTT.NumEnd;
raw.AddNumber(dtok.num);
break;
}
if (separatorToken == TokenType.SEP_Space)
{
dtok.dtt = DateTimeParse.DTT.NumSpace;
raw.AddNumber(dtok.num);
break;
}
if (separatorToken != TokenType.SEP_Am)
{
goto IL_52A;
}
}
else
{
if (separatorToken <= TokenType.SEP_Date)
{
if (separatorToken != TokenType.SEP_Pm)
{
if (separatorToken != TokenType.SEP_Date)
{
goto IL_52A;
}
dtok.dtt = DateTimeParse.DTT.NumDatesep;
raw.AddNumber(dtok.num);
break;
}
}
else
{
if (separatorToken == TokenType.SEP_Time)
{
dtok.dtt = DateTimeParse.DTT.NumTimesep;
raw.AddNumber(dtok.num);
break;
}
if (separatorToken != TokenType.SEP_YearSuff)
{
goto IL_52A;
}
dtok.num = dtfi.Calendar.ToFourDigitYear(num);
dtok.dtt = DateTimeParse.DTT.NumDatesuff;
dtok.suffix = tokenType2;
break;
}
}
if (raw.timeMark != DateTimeParse.TM.NotSet)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
break;
}
raw.timeMark = ((tokenType2 == TokenType.SEP_Am) ? DateTimeParse.TM.AM : DateTimeParse.TM.PM);
dtok.dtt = DateTimeParse.DTT.NumAmpm;
raw.AddNumber(dtok.num);
if ((dps == DateTimeParse.DS.T_NNt || dps == DateTimeParse.DS.T_Nt) && !DateTimeParse.HandleTimeZone(ref str, ref result))
{
return false;
}
break;
IL_52A:
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
if (raw.year == -1)
{
raw.year = num;
int index;
char current;
TokenType separatorToken2;
TokenType tokenType2 = separatorToken2 = str.GetSeparatorToken(dtfi, out index, out current);
if (separatorToken2 > TokenType.SEP_YearSuff)
{
if (separatorToken2 <= TokenType.SEP_HourSuff)
{
if (separatorToken2 == TokenType.SEP_MonthSuff || separatorToken2 == TokenType.SEP_DaySuff)
{
goto IL_26A;
}
if (separatorToken2 != TokenType.SEP_HourSuff)
{
goto IL_28E;
}
}
else
{
if (separatorToken2 != TokenType.SEP_MinuteSuff && separatorToken2 != TokenType.SEP_SecondSuff)
{
if (separatorToken2 != TokenType.SEP_DateOrOffset)
{
goto IL_28E;
}
if (DateTimeParse.dateParsingStates[(int)dps][13] == DateTimeParse.DS.ERROR && DateTimeParse.dateParsingStates[(int)dps][12] > DateTimeParse.DS.ERROR)
{
str.Index = index;
str.m_current = current;
dtok.dtt = DateTimeParse.DTT.YearSpace;
return true;
}
dtok.dtt = DateTimeParse.DTT.YearDateSep;
return true;
}
}
dtok.dtt = DateTimeParse.DTT.NumTimesuff;
dtok.suffix = tokenType2;
return true;
}
if (separatorToken2 <= TokenType.SEP_Am)
{
if (separatorToken2 == TokenType.SEP_End)
{
dtok.dtt = DateTimeParse.DTT.YearEnd;
return true;
}
if (separatorToken2 == TokenType.SEP_Space)
{
dtok.dtt = DateTimeParse.DTT.YearSpace;
return true;
}
if (separatorToken2 != TokenType.SEP_Am)
{
goto IL_28E;
}
}
else
{
if (separatorToken2 != TokenType.SEP_Pm)
{
if (separatorToken2 == TokenType.SEP_Date)
{
dtok.dtt = DateTimeParse.DTT.YearDateSep;
return true;
}
if (separatorToken2 != TokenType.SEP_YearSuff)
{
goto IL_28E;
}
goto IL_26A;
}
}
if (raw.timeMark == DateTimeParse.TM.NotSet)
{
raw.timeMark = ((tokenType2 == TokenType.SEP_Am) ? DateTimeParse.TM.AM : DateTimeParse.TM.PM);
dtok.dtt = DateTimeParse.DTT.YearSpace;
return true;
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return true;
IL_26A:
dtok.dtt = DateTimeParse.DTT.NumDatesuff;
dtok.suffix = tokenType2;
return true;
IL_28E:
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
case TokenType.Am:
case TokenType.Pm:
{
if (raw.timeMark != DateTimeParse.TM.NotSet)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
raw.timeMark = (DateTimeParse.TM)num;
break;
}
case TokenType.MonthToken:
{
if (raw.month != -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
int index;
char current;
TokenType separatorToken3 = str.GetSeparatorToken(dtfi, out index, out current);
if (separatorToken3 <= TokenType.SEP_Space)
{
if (separatorToken3 == TokenType.SEP_End)
{
dtok.dtt = DateTimeParse.DTT.MonthEnd;
goto IL_786;
}
if (separatorToken3 == TokenType.SEP_Space)
{
dtok.dtt = DateTimeParse.DTT.MonthSpace;
goto IL_786;
}
}
else
{
if (separatorToken3 == TokenType.SEP_Date)
{
dtok.dtt = DateTimeParse.DTT.MonthDatesep;
goto IL_786;
}
if (separatorToken3 == TokenType.SEP_DateOrOffset)
{
if (DateTimeParse.dateParsingStates[(int)dps][8] == DateTimeParse.DS.ERROR && DateTimeParse.dateParsingStates[(int)dps][7] > DateTimeParse.DS.ERROR)
{
str.Index = index;
str.m_current = current;
dtok.dtt = DateTimeParse.DTT.MonthSpace;
goto IL_786;
}
dtok.dtt = DateTimeParse.DTT.MonthDatesep;
goto IL_786;
}
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
IL_786:
raw.month = num;
break;
}
case TokenType.EndOfString:
{
dtok.dtt = DateTimeParse.DTT.End;
break;
}
case TokenType.DayOfWeekToken:
{
if (raw.dayOfWeek != -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
raw.dayOfWeek = num;
dtok.dtt = DateTimeParse.DTT.DayOfWeek;
break;
}
case TokenType.TimeZoneToken:
{
if ((result.flags & ParseFlags.TimeZoneUsed) != (ParseFlags)0)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
dtok.dtt = DateTimeParse.DTT.TimeZone;
result.flags |= ParseFlags.TimeZoneUsed;
result.timeZoneOffset = new TimeSpan(0L);
result.flags |= ParseFlags.TimeZoneUtc;
break;
}
case TokenType.EraToken:
{
if (result.era == -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
result.era = num;
dtok.dtt = DateTimeParse.DTT.Era;
break;
}
case TokenType.UnknownToken:
{
if (char.IsLetter(str.m_current))
{
result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_UnknowDateTimeWord", str.Index);
return false;
}
if (Environment.GetCompatibilityFlag(CompatibilityFlag.DateTimeParseIgnorePunctuation) && (result.flags & ParseFlags.CaptureOffset) == (ParseFlags)0)
{
str.GetNext();
return true;
}
if ((str.m_current == '-' || str.m_current == '+') && (result.flags & ParseFlags.TimeZoneUsed) == (ParseFlags)0)
{
int index2 = str.Index;
if (DateTimeParse.ParseTimeZone(ref str, ref result.timeZoneOffset))
{
result.flags |= ParseFlags.TimeZoneUsed;
return true;
}
str.Index = index2;
}
if (DateTimeParse.VerifyValidPunctuation(ref str))
{
return true;
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
case TokenType.HebrewNumber:
{
int index;
char current;
if (num < 100)
{
dtok.num = num;
raw.AddNumber(dtok.num);
TokenType separatorToken4 = str.GetSeparatorToken(dtfi, out index, out current);
if (separatorToken4 <= TokenType.SEP_Space)
{
if (separatorToken4 == TokenType.SEP_End)
{
dtok.dtt = DateTimeParse.DTT.NumEnd;
break;
}
if (separatorToken4 != TokenType.SEP_Space)
{
goto IL_695;
}
}
else
{
if (separatorToken4 != TokenType.SEP_Date)
{
if (separatorToken4 != TokenType.SEP_DateOrOffset)
{
goto IL_695;
}
if (DateTimeParse.dateParsingStates[(int)dps][4] == DateTimeParse.DS.ERROR && DateTimeParse.dateParsingStates[(int)dps][3] > DateTimeParse.DS.ERROR)
{
str.Index = index;
str.m_current = current;
dtok.dtt = DateTimeParse.DTT.NumSpace;
break;
}
dtok.dtt = DateTimeParse.DTT.NumDatesep;
break;
}
}
dtok.dtt = DateTimeParse.DTT.NumDatesep;
break;
IL_695:
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
if (raw.year != -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
raw.year = num;
TokenType separatorToken5 = str.GetSeparatorToken(dtfi, out index, out current);
if (separatorToken5 != TokenType.SEP_End)
{
if (separatorToken5 != TokenType.SEP_Space)
{
if (separatorToken5 == TokenType.SEP_DateOrOffset)
{
if (DateTimeParse.dateParsingStates[(int)dps][12] > DateTimeParse.DS.ERROR)
{
str.Index = index;
str.m_current = current;
dtok.dtt = DateTimeParse.DTT.YearSpace;
break;
}
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
dtok.dtt = DateTimeParse.DTT.YearSpace;
}
else
{
dtok.dtt = DateTimeParse.DTT.YearEnd;
}
break;
}
case TokenType.JapaneseEraToken:
{
result.calendar = JapaneseCalendar.GetDefaultInstance();
dtfi = DateTimeFormatInfo.GetJapaneseCalendarDTFI();
if (result.era == -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
result.era = num;
dtok.dtt = DateTimeParse.DTT.Era;
break;
}
case TokenType.TEraToken:
{
result.calendar = TaiwanCalendar.GetDefaultInstance();
dtfi = DateTimeFormatInfo.GetTaiwanCalendarDTFI();
if (result.era == -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
result.era = num;
dtok.dtt = DateTimeParse.DTT.Era;
break;
}
}
return true;
}
[System.Security.SecuritySafeCritical] // auto-generated
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 !FEATURE_CORECLR
&& enableAmPmParseAdjustment
#endif
)
{
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 !FEATURE_CORECLR
// If DateTimeParseIgnorePunctuation is defined, we want to have the V1.1 behavior of just
// ignoring any unrecognized punctuation and moving on to the next character
if (Environment.GetCompatibilityFlag(CompatibilityFlag.DateTimeParseIgnorePunctuation) && ((result.flags & ParseFlags.CaptureOffset) == 0)) {
str.GetNext();
LexTraceExit("0210 (success)", dps);
return true;
}
#endif // FEATURE_CORECLR
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 bool Lex(DS dps, ref __DTString str, ref DateTimeToken dtok, ref DateTimeRawInfo raw, ref DateTimeResult result, ref DateTimeFormatInfo dtfi)
{
TokenType type;
int num;
int num2;
char ch;
TokenType type2;
dtok.dtt = DTT.Unk;
str.GetRegularToken(out type, out num, dtfi);
switch (type)
{
case TokenType.NumberToken:
case TokenType.YearNumberToken:
if ((raw.numCount != 3) && (num != -1))
{
if ((dps == DS.T_NNt) && (str.Index < (str.len - 1)))
{
char ch2 = str.Value[str.Index];
if (ch2 == '.')
{
ParseFraction(ref str, out raw.fraction);
}
}
if (((dps == DS.T_NNt) || (dps == DS.T_Nt)) && (str.Index < (str.len - 1)))
{
char c = str.Value[str.Index];
int num3 = 0;
while (char.IsWhiteSpace(c) && ((str.Index + num3) < (str.len - 1)))
{
num3++;
c = str.Value[str.Index + num3];
}
switch (c)
{
case '+':
case '-':
str.Index += num3;
if ((result.flags & ParseFlags.TimeZoneUsed) != 0)
{
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;
}
break;
}
}
dtok.num = num;
if (type != TokenType.YearNumberToken)
{
switch ((type2 = str.GetSeparatorToken(dtfi, out num2, out ch)))
{
case TokenType.SEP_End:
dtok.dtt = DTT.NumEnd;
raw.AddNumber(dtok.num);
goto Label_0A1E;
case TokenType.SEP_Space:
dtok.dtt = DTT.NumSpace;
raw.AddNumber(dtok.num);
goto Label_0A1E;
case TokenType.SEP_Am:
case TokenType.SEP_Pm:
if (raw.timeMark == TM.NotSet)
{
raw.timeMark = (type2 == TokenType.SEP_Am) ? TM.AM : TM.PM;
dtok.dtt = DTT.NumAmpm;
raw.AddNumber(dtok.num);
}
else
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
}
goto Label_0A1E;
case TokenType.SEP_Time:
dtok.dtt = DTT.NumTimesep;
raw.AddNumber(dtok.num);
goto Label_0A1E;
case TokenType.SEP_YearSuff:
dtok.num = dtfi.Calendar.ToFourDigitYear(num);
dtok.dtt = DTT.NumDatesuff;
dtok.suffix = type2;
goto Label_0A1E;
case TokenType.SEP_Date:
dtok.dtt = DTT.NumDatesep;
raw.AddNumber(dtok.num);
goto Label_0A1E;
case TokenType.SEP_MonthSuff:
case TokenType.SEP_DaySuff:
dtok.dtt = DTT.NumDatesuff;
dtok.suffix = type2;
goto Label_0A1E;
case TokenType.SEP_HourSuff:
case TokenType.SEP_MinuteSuff:
case TokenType.SEP_SecondSuff:
dtok.dtt = DTT.NumTimesuff;
dtok.suffix = type2;
goto Label_0A1E;
case TokenType.SEP_LocalTimeMark:
dtok.dtt = DTT.NumLocalTimeMark;
raw.AddNumber(dtok.num);
goto Label_0A1E;
case TokenType.SEP_DateOrOffset:
if ((dateParsingStates[(int) dps][4] == DS.ERROR) && (dateParsingStates[(int) dps][3] > DS.ERROR))
{
str.Index = num2;
str.m_current = ch;
dtok.dtt = DTT.NumSpace;
}
else
{
dtok.dtt = DTT.NumDatesep;
}
raw.AddNumber(dtok.num);
goto Label_0A1E;
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
if (raw.year != -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
raw.year = num;
switch ((type2 = str.GetSeparatorToken(dtfi, out num2, out ch)))
{
case TokenType.SEP_Pm:
case TokenType.SEP_Am:
if (raw.timeMark == TM.NotSet)
{
raw.timeMark = (type2 == TokenType.SEP_Am) ? TM.AM : TM.PM;
dtok.dtt = DTT.YearSpace;
}
else
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
}
goto Label_0354;
case TokenType.SEP_Date:
dtok.dtt = DTT.YearDateSep;
goto Label_0354;
case TokenType.SEP_YearSuff:
case TokenType.SEP_MonthSuff:
case TokenType.SEP_DaySuff:
dtok.dtt = DTT.NumDatesuff;
dtok.suffix = type2;
goto Label_0354;
case TokenType.SEP_End:
dtok.dtt = DTT.YearEnd;
goto Label_0354;
case TokenType.SEP_Space:
dtok.dtt = DTT.YearSpace;
goto Label_0354;
case TokenType.SEP_HourSuff:
case TokenType.SEP_MinuteSuff:
case TokenType.SEP_SecondSuff:
dtok.dtt = DTT.NumTimesuff;
dtok.suffix = type2;
goto Label_0354;
case TokenType.SEP_DateOrOffset:
if ((dateParsingStates[(int) dps][13] == DS.ERROR) && (dateParsingStates[(int) dps][12] > DS.ERROR))
{
str.Index = num2;
str.m_current = ch;
dtok.dtt = DTT.YearSpace;
}
else
{
dtok.dtt = DTT.YearDateSep;
}
goto Label_0354;
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
case TokenType.Am:
case TokenType.Pm:
if (raw.timeMark != TM.NotSet)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
raw.timeMark = (TM) num;
break;
case TokenType.MonthToken:
{
if (raw.month != -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
TokenType type8 = type2 = str.GetSeparatorToken(dtfi, out num2, out ch);
if (type8 > TokenType.SEP_Space)
{
switch (type8)
{
case TokenType.SEP_Date:
dtok.dtt = DTT.MonthDatesep;
goto Label_0823;
case TokenType.SEP_DateOrOffset:
if ((dateParsingStates[(int) dps][8] == DS.ERROR) && (dateParsingStates[(int) dps][7] > DS.ERROR))
{
str.Index = num2;
str.m_current = ch;
dtok.dtt = DTT.MonthSpace;
}
else
{
dtok.dtt = DTT.MonthDatesep;
}
goto Label_0823;
}
}
else
{
switch (type8)
{
case TokenType.SEP_End:
dtok.dtt = DTT.MonthEnd;
goto Label_0823;
case TokenType.SEP_Space:
dtok.dtt = DTT.MonthSpace;
goto Label_0823;
}
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
case TokenType.EndOfString:
dtok.dtt = DTT.End;
break;
case TokenType.DayOfWeekToken:
if (raw.dayOfWeek != -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
raw.dayOfWeek = num;
dtok.dtt = DTT.DayOfWeek;
break;
case TokenType.TimeZoneToken:
dtok.dtt = DTT.TimeZone;
result.flags |= ParseFlags.TimeZoneUsed;
result.timeZoneOffset = new TimeSpan(0L);
result.flags |= ParseFlags.TimeZoneUtc;
break;
case TokenType.EraToken:
if (result.era == -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
result.era = num;
dtok.dtt = DTT.Era;
break;
case TokenType.UnknownToken:
if (!char.IsLetter(str.m_current))
{
if (Environment.GetCompatibilityFlag(CompatibilityFlag.DateTimeParseIgnorePunctuation) && ((result.flags & ParseFlags.CaptureOffset) == 0))
{
str.GetNext();
return true;
}
if (((str.m_current == '-') || (str.m_current == '+')) && ((result.flags & ParseFlags.TimeZoneUsed) == 0))
{
int index = str.Index;
if (ParseTimeZone(ref str, ref result.timeZoneOffset))
{
result.flags |= ParseFlags.TimeZoneUsed;
return true;
}
str.Index = index;
}
if (VerifyValidPunctuation(ref str))
{
return true;
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_UnknowDateTimeWord", str.Index);
return false;
case TokenType.HebrewNumber:
if (num < 100)
{
dtok.num = num;
raw.AddNumber(dtok.num);
switch ((type2 = str.GetSeparatorToken(dtfi, out num2, out ch)))
{
case TokenType.SEP_Date:
case TokenType.SEP_Space:
dtok.dtt = DTT.NumDatesep;
goto Label_0A1E;
case TokenType.SEP_DateOrOffset:
if ((dateParsingStates[(int) dps][4] == DS.ERROR) && (dateParsingStates[(int) dps][3] > DS.ERROR))
{
str.Index = num2;
str.m_current = ch;
dtok.dtt = DTT.NumSpace;
}
else
{
dtok.dtt = DTT.NumDatesep;
}
goto Label_0A1E;
case TokenType.SEP_End:
dtok.dtt = DTT.NumEnd;
goto Label_0A1E;
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
if (raw.year != -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
raw.year = num;
switch ((type2 = str.GetSeparatorToken(dtfi, out num2, out ch)))
{
case TokenType.SEP_End:
dtok.dtt = DTT.YearEnd;
goto Label_0A1E;
case TokenType.SEP_Space:
dtok.dtt = DTT.YearSpace;
goto Label_0A1E;
case TokenType.SEP_DateOrOffset:
if (dateParsingStates[(int) dps][12] > DS.ERROR)
{
str.Index = num2;
str.m_current = ch;
dtok.dtt = DTT.YearSpace;
goto Label_0A1E;
}
break;
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
case TokenType.JapaneseEraToken:
result.calendar = JapaneseCalendar.GetDefaultInstance();
dtfi = DateTimeFormatInfo.GetJapaneseCalendarDTFI();
if (result.era == -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
result.era = num;
dtok.dtt = DTT.Era;
break;
case TokenType.TEraToken:
result.calendar = TaiwanCalendar.GetDefaultInstance();
dtfi = DateTimeFormatInfo.GetTaiwanCalendarDTFI();
if (result.era == -1)
{
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
result.era = num;
dtok.dtt = DTT.Era;
break;
}
goto Label_0A1E;
Label_0354:
return true;
Label_0823:
raw.month = num;
Label_0A1E:
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);
// Look at the regular token.
switch (tokenType)
{
case TokenType.NumberToken:
case TokenType.YearNumberToken:
if (raw.numCount == 3 || tokenValue == -1)
{
result.SetFailure(ParseFailureKind.Format, SR.Format_BadDateTime, null);
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))
{
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, SR.Format_BadDateTime, null);
}
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, SR.Format_BadDateTime, null);
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(dps, DTT.YearDateSep) == DS.ERROR)
&& (DateParsingStates(dps, 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, SR.Format_BadDateTime, null);
return false;
}
return true;
}
result.SetFailure(ParseFailureKind.Format, SR.Format_BadDateTime, null);
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, SR.Format_BadDateTime, null);
break;
}
if (dps == DS.T_NNt || dps == DS.T_Nt)
{
if (false == HandleTimeZone(ref str, ref result))
{
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(dps, DTT.NumDatesep) == DS.ERROR)
&& (DateParsingStates(dps, 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:
dtok.num = dtfi.Calendar.ToFourDigitYear(tokenValue);
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, SR.Format_BadDateTime, null);
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(dps, 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, SR.Format_BadDateTime, null);
return false;
}
}
else
{
// Invalid separator after number number.
result.SetFailure(ParseFailureKind.Format, SR.Format_BadDateTime, null);
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(dps, DTT.NumDatesep) == DS.ERROR)
&& (DateParsingStates(dps, 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, SR.Format_BadDateTime, null);
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, SR.Format_BadDateTime, null);
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, SR.Format_BadDateTime, null);
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(dps, DTT.MonthDatesep) == DS.ERROR)
&& (DateParsingStates(dps, 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, SR.Format_BadDateTime, null);
return false;
}
raw.month = tokenValue;
}
else
{
result.SetFailure(ParseFailureKind.Format, SR.Format_BadDateTime, null);
return false;
}
break;
case TokenType.EraToken:
if (result.era != -1)
{
result.era = tokenValue;
dtok.dtt = DTT.Era;
}
else
{
result.SetFailure(ParseFailureKind.Format, SR.Format_BadDateTime, null);
return false;
}
break;
case TokenType.JapaneseEraToken:
throw new NotSupportedException();
case TokenType.TEraToken:
throw new NotSupportedException();
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, SR.Format_BadDateTime, null);
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, SR.Format_BadDateTime, null);
return false;
}
break;
case TokenType.UnknownToken:
if (Char.IsLetter(str.m_current))
{
result.SetFailure(ParseFailureKind.FormatWithParameter, SR.Format_UnknowDateTimeWord, str.Index);
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;
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))
{
return true;
}
result.SetFailure(ParseFailureKind.Format, SR.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) {
TokenType tokenType;
int tokenValue;
TokenType sep;
dtok.dtt = DTT.Unk; // Assume the token is unkown.
str.GetRegularToken(out tokenType, out tokenValue, dtfi);
// 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);
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 swallows 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)) {
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;
}
}
}
}
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)) {
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);
}
break;
case TokenType.SEP_Space:
dtok.dtt = DTT.YearSpace;
break;
case TokenType.SEP_Date:
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);
return false;
}
//
// Found the token already. Return now.
//
return true;
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
switch (sep = str.GetSeparatorToken(dtfi))
{
//
// 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;
raw.AddNumber(dtok.num);
} else {
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
}
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_Time:
if ((result.flags & ParseFlags.TimeZoneUsed) == 0) {
dtok.dtt = DTT.NumTimesep;
raw.AddNumber(dtok.num);
} else {
// If we already got timezone, there should be no
// time separator again.
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
break;
case TokenType.SEP_YearSuff:
dtok.num = dtfi.Calendar.ToFourDigitYear(tokenValue);
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);
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)) {
case TokenType.SEP_End:
dtok.dtt = DTT.YearEnd;
break;
case TokenType.SEP_Space:
dtok.dtt = DTT.YearSpace;
break;
default:
// Invalid separator after number number.
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
} else {
// Invalid separator after number number.
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
} else {
// This is a day number
dtok.num = tokenValue;
raw.AddNumber(dtok.num);
switch (sep = str.GetSeparatorToken(dtfi)) {
//
// 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;
default:
// Invalid separator after number number.
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
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);
return false;
}
break;
case TokenType.MonthToken:
if (raw.month == -1)
{
//
// This is a month name
//
switch(sep=str.GetSeparatorToken(dtfi))
{
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;
default:
//Invalid separator after month name
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
raw.month = tokenValue;
} else {
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
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);
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);
return false;
}
break;
case TokenType.TEraToken:
// Special case for Taiwan.
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);
return false;
}
break;
case TokenType.TimeZoneToken:
//
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);
return false;
}
break;
case TokenType.UnknownToken:
if (Char.IsLetter(str.m_current)) {
result.SetFailure(ParseFailureKind.FormatWithParameter, "Format_UnknowDateTimeWord", str.Index);
return (false);
}
else {
// If DateTimeParseIgnorePunctuation is defined, we want to have the V1.1 behavior of just
// ignoring any unrecognized punctuation and moving on to the next character
if (Environment.GetCompatibilityFlag(CompatibilityFlag.DateTimeParseIgnorePunctuation)) {
str.GetNext();
return true;
}
else {
if (VerifyValidPunctuation(ref str)) {
return true;
}
}
result.SetFailure(ParseFailureKind.Format, "Format_BadDateTime", null);
return false;
}
}
return true;
}