Sets the special locale array. Tries to use
POSIX setlocale based on the value of itself, then
tries to accept a custom setting with the proper definitions of mon_decimal_point, thousands_sep, and frac_digits, which are the the only international settings required. Default if not
set is to use US-English settings.
Example of the custom setting:
Locale custom mon_decimal_point , mon_thousands_sep . frac_digits 0
Example of POSIX setlocale for France, if properly aliased:
Locale fr
See setlocale(3) for more information. If embedded Perl code
is used to sort search returns, then the setlocale() will
carry through to string collation.
See Internationalization.