appears, white space is permitted in the format,
appears at the end, in which case no white space is permitted.
indicates that at least one space is required at that position.
appears, the sequence of characters returned by
is permitted, and can be required.
appears, the first (if any) of the sequence of characters returned by
(respectively as the monetary value is non-negative or negative) is required.
Any remaining characters of the sign sequence are required after all
other format components.
appears, the absolute numeric monetary value is required.