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#!./perl -w
BEGIN {
chdir 't' if -d 't';
@INC = qw(. ../lib);
}
use Config;
require "test.pl";
my $file = tempfile();
if (find PerlIO::Layer 'perlio') {
plan(tests => 16);
ok(open(FOO,">:crlf",$file));
ok(print FOO 'a'.((('a' x 14).qq{\n}) x 2000) || close(FOO));
ok(open(FOO,"<:crlf",$file));
my $text;
{ local $/; $text = <FOO> }
is(count_chars($text, "\015\012"), 0);
is(count_chars($text, "\n"), 2000);
binmode(FOO);
seek(FOO,0,0);
{ local $/; $text = <FOO> }
is(count_chars($text, "\015\012"), 2000);
SKIP:
{
skip("miniperl can't rely on loading PerlIO::scalar")
if $ENV{PERL_CORE_MINITEST};
skip("no PerlIO::scalar") unless $Config{extensions} =~ m!\bPerlIO/scalar\b!;
require PerlIO::scalar;
my $fcontents = join "", map {"$_\015\012"} "a".."zzz";
open my $fh, "<:crlf", \$fcontents;
local $/ = "xxx";
local $_ = <$fh>;
my $pos = tell $fh; # pos must be behind "xxx", before "\nxxy\n"
seek $fh, $pos, 0;
$/ = "\n";
$s = <$fh>.<$fh>;
ok($s eq "\nxxy\n");
}
ok(close(FOO));
# binmode :crlf should not cumulate.
# Try it first once and then twice so that even UNIXy boxes
# get to exercise this, for DOSish boxes even once is enough.
# Try also pushing :utf8 first so that there are other layers
# in between (this should not matter: CRLF layers still should
# not accumulate).
for my $utf8 ('', ':utf8') {
for my $binmode (1..2) {
open(FOO, ">$file");
# require PerlIO; print PerlIO::get_layers(FOO), "\n";
binmode(FOO, "$utf8:crlf") for 1..$binmode;
# require PerlIO; print PerlIO::get_layers(FOO), "\n";
print FOO "Hello\n";
close FOO;
open(FOO, "<$file");
binmode(FOO);
my $foo = scalar <FOO>;
close FOO;
print join(" ", "#", map { sprintf("%02x", $_) } unpack("C*", $foo)),
"\n";
ok($foo =~ /\x0d\x0a$/);
ok($foo !~ /\x0d\x0d/);
}
}
}
else {
skip_all("No perlio, so no :crlf");
}
sub count_chars {
my($text, $chars) = @_;
my $seen = 0;
$seen++ while $text =~ /$chars/g;
return $seen;
}
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