//
// Check the word at the current index to see if it matches a day of week name.
// Return -1 if a match is not found. Otherwise, a value from 0 to 6 is returned.
//
private static int GetDayOfWeekNumber(__DTString str, DateTimeFormatInfo dtfi) {
//
// Check the month name specified in dtfi.
//
DayOfWeek i;
int maxLen = 0;
int result = -1;
//
// We have to match the day name with the longest length,
// since there are cultures which have more than one day of week names
// with the same prefix.
//
int endIndex = str.FindEndOfCurrentWord();
String dayName=null;
for (i = DayOfWeek.Sunday; i <= DayOfWeek.Saturday; i++) {
dayName = dtfi.GetDayName(i);
if (str.MatchSpecifiedWord(dayName, endIndex)) {
if (dayName.Length > maxLen) {
result = (int)i;
maxLen = dayName.Length;
}
}
}
if (result > -1) {
str.Index = endIndex;
return (result);
}
for (i = DayOfWeek.Sunday; i <= DayOfWeek.Saturday; i++)
{
if (MatchWord(str, dtfi.GetAbbreviatedDayName(i), false))
{
return ((int)i);
}
}
//
// Check the month name in the invariant culture.
//
for (i = DayOfWeek.Sunday; i <= DayOfWeek.Saturday; i++)
{
if (MatchWord(str, invariantInfo.GetDayName(i), false))
{
return ((int)i);
}
}
for (i = DayOfWeek.Sunday; i <= DayOfWeek.Saturday; i++)
{
if (MatchWord(str, invariantInfo.GetAbbreviatedDayName(i), false))
{
return ((int)i);
}
}
return (-1);
}