package locale; our $VERSION = '1.02'; use Config; $Carp::Internal{ (__PACKAGE__) } = 1; # A separate bit is used for each of the two forms of the pragma, as they are # mostly independent, and interact with each other and the unicode_strings # feature. This allows for fast determination of which one(s) of the three # are to be used at any given point, and no code has to be written to deal # with coming in and out of scopes--it falls automatically out from the hint # handling $locale::hint_bits = 0x4; $locale::not_chars_hint_bits = 0x10; sub import { shift; # should be 'locale'; not checked if(!$Config{d_setlocale}) { ## No locale support found on this Perl, giving up: die('Your vendor does not support locales, you cannot use the locale module.'); } my $found_not_chars = 0; while (defined (my $arg = shift)) { if ($arg eq ":not_characters") { $^H |= $locale::not_chars_hint_bits; # This form of the pragma overrides the other $^H &= ~$locale::hint_bits; $found_not_chars = 1; } else { require Carp; Carp::croak("Unknown parameter '$arg' to 'use locale'"); } } # Use the plain form if not doing the :not_characters one. $^H |= $locale::hint_bits unless $found_not_chars; } sub unimport { $^H &= ~($locale::hint_bits|$locale::not_chars_hint_bits); } 1;