You use :raw:encoding($enc):crlf:utf8 for writing.
You use :encoding($enc) for reading.
This lack in symmetry in your IO layers accounts for your lack of symmetry in CRLF handling.
Use :raw:encoding($enc):crlf:utf8 for reading too.
use Data::Dumper qw( Dumper );
sub hexdump {
(my $dump = uc unpack 'H*', $_[0]) =~ s/(..)/$1 /g;
return $dump;
}
sub txtdump {
local $Data::Dumper::Useqq = 1;
local $Data::Dumper::Terse = 1;
local $Data::Dumper::Indent = 0;
return Dumper($_[0]);
}
{
open(my $fh, '>:raw:encoding(UTF-16le):crlf:utf8', 'test') or die;
my $data = "foo\nbar\n";
print("Orig: ", txtdump($data), "\n");
print $fh $data;
}
{
open(my $fh, '<:raw', 'test') or die;
local $/;
my $data = <$fh>;
print("File: ", hexdump($data), "\n");
}
{
open(my $fh, '<:raw:encoding(UTF-16le):crlf:utf8', 'test') or die;
local $/;
my $data = <$fh>;
print("Read: ", txtdump($data), "\n");
}
Orig: "foo\nbar\n"
File: 66 00 6F 00 6F 00 0D 00 0A 00 62 00 61 00 72 00 0D 00 0A 00
Read: "foo\nbar\n"
Update: Added code.