File Coverage

blib/lib/String/Multibyte/EUC_JP.pm

Criterion	Covered	Total	%
statement	6	6	100.0
branch			n/a
condition			n/a
subroutine	2	2	100.0
pod			n/a
total	8	8	100.0

package String::Multibyte::EUC_JP;

use vars qw($VERSION);
$VERSION = '1.02';

+{
    charset  => 'EUC-JP',

    regexp   => '(?:[\x00-\x7F]|[\x8E\xA1-\xFE][\xA1-\xFE]|' .
	'\x8F[\xA1-\xFE][\xA1-\xFE])',

    cmpchar => sub {
	length($_[0]) <=> length($_[1]) || $_[0] cmp $_[1];
    },

    nextchar => sub {
	my $ch = shift;
	my $len = length $ch;
	if ($len < 1 || 3 < $len) {
	    return;
	}
	elsif ($len == 1) {
	    return $ch eq "\x7F"
		? "\x8E\xA1"
		: chr(ord($ch)+1);
	}
	elsif ($len == 2) {
	    my($c,$d) = unpack('CC', $ch);
	    return $ch eq "\x8E\xFE"
		? "\xA1\xA1"
		: $ch eq "\xFE\xFE"
		    ? "\x8F\xA1\xA1"
		    : $d == 0xFE
			? chr($c+1)."\xA1"
			: pack('CC', $c, $d+1);
	}
	else {
	    return if 0x8F != ord $ch;
	    my($b,$c,$d) = unpack('CCC',$ch);
	    return $ch eq "\x8F\xFE\xFE"
		? undef
		: $d == 0xFE
		    ? pack('CCC', 0x8F, $c+1, 0xA1)
		    : pack('CCC', 0x8F, $c, $d+1);
	}
    },
};

__END__