private void ComputeConversion(Group group)
{
_conversion = group.Value[0];
if (!_isDateTime)
{
if (!ConversionAux.IsValid(_conversion))
throw new UnknownFormatConversionException(group.Value);
if (Char.IsUpper(_conversion))
_flags |= FormatFlags.UpperCase;
_conversion = Char.ToLower(_conversion);
if (ConversionAux.IsText(_conversion))
_index = FIXED_TEXT_INDEX;
}
}