public static TimeSpan ParseUtcOffset(string s, ComplianceTracker tracker)
{
int num = 0;
int num2 = 0;
int num3 = 0;
int length = s.Length;
if (length != 5 && length != 7)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidUtcOffsetLength);
return(TimeSpan.Zero);
}
char c = s[0];
bool flag;
if (c == '+')
{
flag = false;
}
else
{
if (c != '-')
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.ExpectedPlusMinus);
return(TimeSpan.Zero);
}
flag = true;
}
for (int i = 1; i < length; i++)
{
c = s[i];
if ((int)c >= ContentLineParser.Dictionary.Length)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
if ((byte)(ContentLineParser.Tokens.Digit & ContentLineParser.Dictionary[(int)c]) == 0)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidToken);
return(TimeSpan.Zero);
}
}
if (!int.TryParse(s.Substring(1, 2), out num) || num < 0 || num > 23)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
}
if (!int.TryParse(s.Substring(3, 2), out num2) || num2 < 0 || num2 > 59)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
}
if (length == 7 && (!int.TryParse(s.Substring(5, 2), out num3) || num3 < 0 || num3 > 59))
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
}
if (num == 0 && num2 == 0 && num3 == 0 && flag)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
}
return(CalendarCommon.CreateTimeSpan(tracker, 0, num, num2, num3, flag));
}
public static TimeSpan ParseDuration(string s, ComplianceTracker tracker)
{
int num = 0;
int length = s.Length;
CalendarCommon.DurationParseStates durationParseStates = CalendarCommon.DurationParseStates.Start;
StringBuilder stringBuilder = null;
int num2 = 0;
int num3 = 0;
int hours = 0;
int minutes = 0;
int seconds = 0;
bool negative = false;
while (num < length && durationParseStates != CalendarCommon.DurationParseStates.End)
{
char c = s[num];
if ((int)c >= ContentLineParser.Dictionary.Length)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
switch (durationParseStates)
{
case CalendarCommon.DurationParseStates.Start:
if (c == 'P')
{
durationParseStates = CalendarCommon.DurationParseStates.S1;
}
else if (c == '+')
{
durationParseStates = CalendarCommon.DurationParseStates.Sign;
}
else
{
if (c != '-')
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
negative = true;
durationParseStates = CalendarCommon.DurationParseStates.Sign;
}
break;
case CalendarCommon.DurationParseStates.Sign:
if (c != 'P')
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.ExpectedP);
return(TimeSpan.Zero);
}
durationParseStates = CalendarCommon.DurationParseStates.S1;
break;
case CalendarCommon.DurationParseStates.S1:
if ((byte)(ContentLineParser.Tokens.Digit & ContentLineParser.Dictionary[(int)c]) != 0)
{
stringBuilder = new StringBuilder();
stringBuilder.Append(c);
durationParseStates = CalendarCommon.DurationParseStates.S2;
}
else
{
if (c != 'T')
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
durationParseStates = CalendarCommon.DurationParseStates.T1;
}
break;
case CalendarCommon.DurationParseStates.S2:
while ((byte)(ContentLineParser.Tokens.Digit & ContentLineParser.Dictionary[(int)c]) != 0)
{
stringBuilder.Append(c);
if (++num == length)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.ExpectedWOrD);
return(TimeSpan.Zero);
}
c = s[num];
if ((int)c >= ContentLineParser.Dictionary.Length)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
}
if (c == 'W')
{
if (!int.TryParse(stringBuilder.ToString(), out num3))
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
}
durationParseStates = CalendarCommon.DurationParseStates.End;
}
else
{
if (c != 'D')
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
if (!int.TryParse(stringBuilder.ToString(), out num2))
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
}
durationParseStates = CalendarCommon.DurationParseStates.D1;
}
break;
case CalendarCommon.DurationParseStates.D1:
if (c != 'T')
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.ExpectedT);
return(TimeSpan.Zero);
}
durationParseStates = CalendarCommon.DurationParseStates.T1;
break;
case CalendarCommon.DurationParseStates.T1:
if ((byte)(ContentLineParser.Tokens.Digit & ContentLineParser.Dictionary[(int)c]) == 0)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
stringBuilder = new StringBuilder();
stringBuilder.Append(c);
durationParseStates = CalendarCommon.DurationParseStates.T2;
break;
case CalendarCommon.DurationParseStates.T2:
while ((byte)(ContentLineParser.Tokens.Digit & ContentLineParser.Dictionary[(int)c]) != 0)
{
stringBuilder.Append(c);
if (++num == length)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.ExpectedHMS);
return(TimeSpan.Zero);
}
c = s[num];
if ((int)c >= ContentLineParser.Dictionary.Length)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
}
if (c == 'H')
{
if (!int.TryParse(stringBuilder.ToString(), out hours))
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
}
durationParseStates = CalendarCommon.DurationParseStates.H1;
}
else if (c == 'M')
{
if (!int.TryParse(stringBuilder.ToString(), out minutes))
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
}
durationParseStates = CalendarCommon.DurationParseStates.M1;
}
else
{
if (c != 'S')
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
if (!int.TryParse(stringBuilder.ToString(), out seconds))
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
}
durationParseStates = CalendarCommon.DurationParseStates.End;
}
break;
case CalendarCommon.DurationParseStates.H1:
if ((byte)(ContentLineParser.Tokens.Digit & ContentLineParser.Dictionary[(int)c]) == 0)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
stringBuilder = new StringBuilder();
stringBuilder.Append(c);
durationParseStates = CalendarCommon.DurationParseStates.H2;
break;
case CalendarCommon.DurationParseStates.H2:
while ((byte)(ContentLineParser.Tokens.Digit & ContentLineParser.Dictionary[(int)c]) != 0)
{
stringBuilder.Append(c);
if (++num == length)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.ExpectedM);
return(TimeSpan.Zero);
}
c = s[num];
if ((int)c >= ContentLineParser.Dictionary.Length)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
}
if (c != 'M')
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
if (!int.TryParse(stringBuilder.ToString(), out minutes))
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
}
durationParseStates = CalendarCommon.DurationParseStates.M1;
break;
case CalendarCommon.DurationParseStates.M1:
if ((byte)(ContentLineParser.Tokens.Digit & ContentLineParser.Dictionary[(int)c]) == 0)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
stringBuilder = new StringBuilder();
stringBuilder.Append(c);
durationParseStates = CalendarCommon.DurationParseStates.M2;
break;
case CalendarCommon.DurationParseStates.M2:
while ((byte)(ContentLineParser.Tokens.Digit & ContentLineParser.Dictionary[(int)c]) != 0)
{
stringBuilder.Append(c);
if (++num == length)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.ExpectedS);
return(TimeSpan.Zero);
}
c = s[num];
if ((int)c >= ContentLineParser.Dictionary.Length)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
}
if (c != 'S')
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidCharacter);
return(TimeSpan.Zero);
}
if (!int.TryParse(stringBuilder.ToString(), out seconds))
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
}
durationParseStates = CalendarCommon.DurationParseStates.End;
break;
default:
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.InvalidValueFormat);
return(TimeSpan.Zero);
}
num++;
}
if (num != length)
{
tracker.SetComplianceStatus(ComplianceStatus.InvalidValueFormat, CalendarStrings.DurationDataNotEndedProperly);
return(TimeSpan.Zero);
}
if (num3 != 0)
{
num2 += num3 * 7;
}
return(CalendarCommon.CreateTimeSpan(tracker, num2, hours, minutes, seconds, negative));
}
