documentSeparatorFor function
The decimal separator a new plan takes in strings' language (N1):
DecimalSeparator.comma when the language's panels print ,
(FloorPlanStrings.decimalSeparator), DecimalSeparator.point
otherwise. Only a new plan reads it: nothing converts a plan that exists
(N2).
Implementation
DecimalSeparator documentSeparatorFor(FloorPlanStrings strings) =>
strings.decimalSeparator == ','
? DecimalSeparator.comma
: DecimalSeparator.point;