Commit | Line | Data |
---|---|---|
d3db65ff NIS |
1 | #!./perl -w |
2 | ||
3 | BEGIN { | |
4 | chdir 't' if -d 't'; | |
5 | @INC = qw(. ../lib); | |
e05e9c3d NC |
6 | require "test.pl"; |
7 | skip_all_without_perlio(); | |
d3db65ff NIS |
8 | } |
9 | ||
10 | use Config; | |
11 | ||
d3db65ff | 12 | |
62a28c97 | 13 | my $file = tempfile(); |
d3db65ff | 14 | |
f10c05c1 KW |
15 | my $ungetc_count = 8200; # Somewhat over the likely buffer size |
16 | ||
e05e9c3d | 17 | { |
f10c05c1 | 18 | plan(tests => 16 + 2 * $ungetc_count); |
14b1a0c4 RGS |
19 | ok(open(FOO,">:crlf",$file)); |
20 | ok(print FOO 'a'.((('a' x 14).qq{\n}) x 2000) || close(FOO)); | |
21 | ok(open(FOO,"<:crlf",$file)); | |
887ede57 | 22 | |
14b1a0c4 RGS |
23 | my $text; |
24 | { local $/; $text = <FOO> } | |
25 | is(count_chars($text, "\015\012"), 0); | |
26 | is(count_chars($text, "\n"), 2000); | |
887ede57 | 27 | |
14b1a0c4 RGS |
28 | binmode(FOO); |
29 | seek(FOO,0,0); | |
30 | { local $/; $text = <FOO> } | |
31 | is(count_chars($text, "\015\012"), 2000); | |
887ede57 | 32 | |
14b1a0c4 RGS |
33 | SKIP: |
34 | { | |
bd1869dc | 35 | skip_if_miniperl("miniperl can't rely on loading PerlIO::scalar"); |
14b1a0c4 RGS |
36 | skip("no PerlIO::scalar") unless $Config{extensions} =~ m!\bPerlIO/scalar\b!; |
37 | require PerlIO::scalar; | |
38 | my $fcontents = join "", map {"$_\015\012"} "a".."zzz"; | |
39 | open my $fh, "<:crlf", \$fcontents; | |
40 | local $/ = "xxx"; | |
41 | local $_ = <$fh>; | |
42 | my $pos = tell $fh; # pos must be behind "xxx", before "\nxxy\n" | |
43 | seek $fh, $pos, 0; | |
44 | $/ = "\n"; | |
45 | $s = <$fh>.<$fh>; | |
bd1869dc | 46 | is($s, "\nxxy\n"); |
f10c05c1 KW |
47 | |
48 | for my $i (0 .. $ungetc_count - 1) { | |
49 | my $j = $i % 256; | |
50 | is($fh->ungetc($j), $j, "ungetc of $j returns itself"); | |
51 | } | |
52 | ||
53 | for (my $i = $ungetc_count - 1; $i >= 0; $i--) { | |
54 | my $j = $i % 256; | |
55 | is(ord($fh->getc()), $j, "getc gets back $j"); | |
56 | } | |
14b1a0c4 | 57 | } |
e949e37c | 58 | |
14b1a0c4 | 59 | ok(close(FOO)); |
8229d19f | 60 | |
14b1a0c4 RGS |
61 | # binmode :crlf should not cumulate. |
62 | # Try it first once and then twice so that even UNIXy boxes | |
63 | # get to exercise this, for DOSish boxes even once is enough. | |
64 | # Try also pushing :utf8 first so that there are other layers | |
65 | # in between (this should not matter: CRLF layers still should | |
66 | # not accumulate). | |
67 | for my $utf8 ('', ':utf8') { | |
68 | for my $binmode (1..2) { | |
69 | open(FOO, ">$file"); | |
70 | # require PerlIO; print PerlIO::get_layers(FOO), "\n"; | |
71 | binmode(FOO, "$utf8:crlf") for 1..$binmode; | |
72 | # require PerlIO; print PerlIO::get_layers(FOO), "\n"; | |
73 | print FOO "Hello\n"; | |
74 | close FOO; | |
75 | open(FOO, "<$file"); | |
76 | binmode(FOO); | |
77 | my $foo = scalar <FOO>; | |
78 | close FOO; | |
79 | print join(" ", "#", map { sprintf("%02x", $_) } unpack("C*", $foo)), | |
80 | "\n"; | |
bd1869dc NC |
81 | like($foo, qr/\x0d\x0a$/); |
82 | unlike($foo, qr/\x0d\x0d/); | |
14b1a0c4 RGS |
83 | } |
84 | } | |
d3db65ff | 85 | } |
d3db65ff | 86 | |
887ede57 | 87 | sub count_chars { |
14b1a0c4 RGS |
88 | my($text, $chars) = @_; |
89 | my $seen = 0; | |
90 | $seen++ while $text =~ /$chars/g; | |
91 | return $seen; | |
887ede57 | 92 | } |