internal int AddDateWords(String pattern, int index, String formatPostfix)
{
// Skip any whitespaces so we will start from a letter.
int newIndex = SkipWhiteSpacesAndNonLetter(pattern, index);
if (newIndex != index && formatPostfix != null)
{
// There are whitespaces. This will not be a postfix.
formatPostfix = null;
}
index = newIndex;
// This is the first char added into dateWord.
// Skip all non-letter character. We will add the first letter into DateWord.
StringBuilder dateWord = new StringBuilder();
// We assume that date words should start with a letter.
// Skip anything until we see a letter.
while (index < pattern.Length)
{
char ch = pattern[index];
if (ch == '\'')
{
// We have seen the end of quote. Add the word if we do not see it before,
// and break the while loop.
AddDateWordOrPostfix(formatPostfix, dateWord.ToString());
index++;
break;
} else if (ch == '\\')
{
//
// Escaped character. Look ahead one character
//
// Skip escaped backslash.
index++;
if (index < pattern.Length)
{
dateWord.Append(pattern[index]);
index++;
}
} else if (Char.IsWhiteSpace(ch))
{
// Found a whitespace. We have to add the current date word/postfix.
AddDateWordOrPostfix(formatPostfix, dateWord.ToString());
if (formatPostfix != null)
{
// Done with postfix. The rest will be regular date word.
formatPostfix = null;
}
// Reset the dateWord.
dateWord.Length = 0;
index++;
} else
{
dateWord.Append(ch);
index++;
}
}
return (index);
}
