private static string EvaluateWord(string word, DateFormatPart part)
{
string text = null;
if (part == DateFormatPart.HoursFormat && (word == "h" || word == "H" || word == "hh" || word == "HH"))
{
text = word;
}
else if (part == DateFormatPart.DaysFormat && (word == "d" || word == "D" || word == "dd" || word == "DD"))
{
text = word;
}
if (text == null)
{
return(null);
}
if (text.Length == 1)
{
return("%" + text);
}
return(text);
}
internal static string GetPart(string dateFormat, DateFormatPart part)
{
if (dateFormat == null)
{
throw new ArgumentNullException("dateFormat");
}
DateFormatParser.State state = DateFormatParser.State.Scanning;
StringBuilder stringBuilder = new StringBuilder(dateFormat.Length);
int i = 0;
while (i < dateFormat.Length)
{
char c = dateFormat[i];
char c2 = c;
if (c2 <= 'D')
{
if (c2 != '\'')
{
if (c2 != 'D')
{
goto IL_11A;
}
goto IL_A9;
}
else
{
switch (state)
{
case DateFormatParser.State.Scanning:
state = DateFormatParser.State.InQuotedWord;
break;
case DateFormatParser.State.InQuotedWord:
state = DateFormatParser.State.Scanning;
break;
case DateFormatParser.State.InWord:
{
state = DateFormatParser.State.Scanning;
string text = DateFormatParser.EvaluateWord(stringBuilder.ToString(), part);
if (text != null)
{
return(text);
}
stringBuilder.Clear();
break;
}
}
}
}
else
{
if (c2 != 'H' && c2 != 'd' && c2 != 'h')
{
goto IL_11A;
}
goto IL_A9;
}
IL_14D:
i++;
continue;
IL_A9:
switch (state)
{
case DateFormatParser.State.Scanning:
case DateFormatParser.State.InWord:
{
if (stringBuilder.Length == 0 || (stringBuilder.Length > 0 && c == stringBuilder[stringBuilder.Length - 1]))
{
state = DateFormatParser.State.InWord;
stringBuilder.Append(c);
goto IL_14D;
}
state = DateFormatParser.State.Scanning;
string text = DateFormatParser.EvaluateWord(stringBuilder.ToString(), part);
if (text != null)
{
return(text);
}
stringBuilder.Clear();
stringBuilder.Append(c);
goto IL_14D;
}
case DateFormatParser.State.InQuotedWord:
goto IL_14D;
default:
goto IL_14D;
}
IL_11A:
switch (state)
{
case DateFormatParser.State.Scanning:
case DateFormatParser.State.InQuotedWord:
goto IL_14D;
case DateFormatParser.State.InWord:
{
state = DateFormatParser.State.Scanning;
string text = DateFormatParser.EvaluateWord(stringBuilder.ToString(), part);
if (text != null)
{
return(text);
}
stringBuilder.Clear();
goto IL_14D;
}
default:
goto IL_14D;
}
}
if (state == DateFormatParser.State.InWord)
{
string text = DateFormatParser.EvaluateWord(stringBuilder.ToString(), part);
if (text != null)
{
return(text);
}
}
return(null);
}