Where
none or
space appears,
whitespace is permitted in the format,
except where
none appears at the end,
in which case no whitespace is permitted
. The value
space indicates that
at least one space is required at that position
. Where
symbol appears,
the sequence of characters returned by
curr_symbol() is permitted, and
can be required
. Where
sign appears,
the first (if any) of the sequence of characters returned by
positive_sign() or
negative_sign()
(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
. Where
value appears, the absolute numeric monetary value is required
.