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print "1..19\n";
use encoding "latin1"; # ignored (overwritten by the next line)
use encoding "greek"; # iso 8859-7 (no "latin" alias, surprise...)
# "greek" is "ISO 8859-7", and \xDF in ISO 8859-7 is
# \x{3AF} in Unicode (GREEK SMALL LETTER IOTA WITH TONOS),
# instead of \xDF in Unicode (LATIN SMALL LETTER SHARP S)
$a = "\xDF";
$b = "\x{100}";
print "not " unless ord($a) == 0x3af;
print "ok 1\n";
print "not " unless ord($b) == 0x100;
print "ok 2\n";
my $c;
$c = $a . $b;
print "not " unless ord($c) == 0x3af;
print "ok 3\n";
print "not " unless length($c) == 2;
print "ok 4\n";
print "not " unless ord(substr($c, 1, 1)) == 0x100;
print "ok 5\n";
print "not " unless ord(chr(0xdf)) == 0x3af; # spooky
print "ok 6\n";
print "not " unless ord(pack("C", 0xdf)) == 0x3af;
print "ok 7\n";
# we didn't break pack/unpack, I hope
print "not " unless unpack("C", pack("C", 0xdf)) == 0xdf;
print "ok 8\n";
# the first octet of UTF-8 encoded 0x3af
print "not " unless unpack("C", chr(0xdf)) == 0xce;
print "ok 9\n";
print "not " unless unpack("U", pack("U", 0xdf)) == 0xdf;
print "ok 10\n";
print "not " unless unpack("U", chr(0xdf)) == 0x3af;
print "ok 11\n";
# charnames must still work
use charnames ':full';
print "not " unless ord("\N{LATIN SMALL LETTER SHARP S}") == 0xdf;
print "ok 12\n";
# combine
$c = "\xDF\N{LATIN SMALL LETTER SHARP S}" . chr(0xdf);
print "not " unless ord($c) == 0x3af;
print "ok 13\n";
print "not " unless ord(substr($c, 1, 1)) == 0xdf;
print "ok 14\n";
print "not " unless ord(substr($c, 2, 1)) == 0x3af;
print "ok 15\n";
# regex literals
print "not " unless "\xDF" =~ /\x{3AF}/;
print "ok 16\n";
print "not " unless "\x{3AF}" =~ /\xDF/;
print "ok 17\n";
print "not " unless "\xDF" =~ /\xDF/;
print "ok 18\n";
print "not " unless "\x{3AF}" =~ /\x{3AF}/;
print "ok 19\n";
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