private void AppendOptionsChars(RegexOptions options) { if ((options & RegexOptions.IgnoreCase) != 0) AppendDirect('i'); if ((options & RegexOptions.Multiline) != 0) AppendDirect('m'); if ((options & RegexOptions.ExplicitCapture) != 0) AppendDirect('n'); if ((options & RegexOptions.Singleline) != 0) AppendDirect('s'); if ((options & RegexOptions.IgnorePatternWhitespace) != 0) AppendDirect('x'); }