5 @INC = qw(. ../lib); # ../lib needed for test.deparse
11 # Note that t/op/ord.t already tests for chr() <-> ord() rountripping.
15 is(chr(ord("A")), "A");
22 is(chr(-0.1), "\x{FFFD}"); # The U+FFFD Unicode replacement character.
23 is(chr(-1 ), "\x{FFFD}");
24 is(chr(-2 ), "\x{FFFD}");
25 is(chr(-3.0), "\x{FFFD}");
27 use bytes; # Backward compatibility.
28 is(chr(-0.1), "\x00");
31 is(chr(-3.0), "\xFD");
34 # Make sure -1 is treated the same way when coming from a tied variable
35 sub TIESCALAR {bless[]}
36 sub STORE { $_[0][0] = $_[1] }
37 sub FETCH { $_[0][0] }
39 $t = -1; is chr $t, chr -1, 'chr $tied when $tied is -1';
40 $t = -2; is chr $t, chr -2, 'chr $tied when $tied is -2';
41 $t = -1.1; is chr $t, chr -1.1, 'chr $tied when $tied is -1.1';
42 $t = -2.2; is chr $t, chr -2.2, 'chr $tied when $tied is -2.2';
44 # And that stringy scalars are treated likewise
45 is chr "-1", chr -1, 'chr "-1" eq chr -1';
46 is chr "-2", chr -2, 'chr "-2" eq chr -2';
47 is chr "-1.1", chr -1.1, 'chr "-1.1" eq chr -1.1';
48 is chr "-2.2", chr -2.2, 'chr "-2.2" eq chr -2.2';
50 # Check UTF-8 (not UTF-EBCDIC).
52 skip "UTF-8 ASCII centric tests", 21 if $::IS_EBCDIC;
53 # Too hard to convert these tests generically to EBCDIC code pages without
54 # using chr(), which is what we're testing.
57 no warnings 'utf8'; # avoid surrogate and beyond Unicode warnings
58 join(" ",unpack "U0 (H2)*", chr $_[0]);
61 # The following code points are some interesting steps in UTF-8.
62 is(hexes( 0x100), "c4 80");
63 is(hexes( 0x7FF), "df bf");
64 is(hexes( 0x800), "e0 a0 80");
65 is(hexes( 0xFFF), "e0 bf bf");
66 is(hexes( 0x1000), "e1 80 80");
67 is(hexes( 0xCFFF), "ec bf bf");
68 is(hexes( 0xD000), "ed 80 80");
69 is(hexes( 0xD7FF), "ed 9f bf");
70 is(hexes( 0xD800), "ed a0 80"); # not strict utf-8 (surrogate area begin)
71 is(hexes( 0xDFFF), "ed bf bf"); # not strict utf-8 (surrogate area end)
72 is(hexes( 0xE000), "ee 80 80");
73 is(hexes( 0xFFFF), "ef bf bf");
74 is(hexes( 0x10000), "f0 90 80 80");
75 is(hexes( 0x3FFFF), "f0 bf bf bf");
76 is(hexes( 0x40000), "f1 80 80 80");
77 is(hexes( 0xFFFFF), "f3 bf bf bf");
78 is(hexes(0x100000), "f4 80 80 80");
79 is(hexes(0x10FFFF), "f4 8f bf bf"); # Unicode (4.1) last code point
80 is(hexes(0x110000), "f4 90 80 80");
81 is(hexes(0x1FFFFF), "f7 bf bf bf"); # last four byte encoding
82 is(hexes(0x200000), "f8 88 80 80 80");
87 '""' => sub { ++$o::str; "42" },
88 '0+' => sub { ++$o::num; 42 };
90 is chr(bless [], "o"), chr(42), 'overloading called';
91 is $o::str, undef, 'chr does not call string overloading';
92 is $o::num, 1, 'chr does call num overloading';