Gecko [ www.blackthorn-inc.com ]

Name	Size	Permission	Date
App	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Archive	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
Attribute	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
B	[ DIR ]	drwxr-xr-x	2016-10-10 17:38
CGI	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
CPAN	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
Carp	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
Class	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
Compress	[ DIR ]	drwxr-xr-x	2016-10-10 17:38
Config	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
DBM_Filter	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
Data	[ DIR ]	drwxr-xr-x	2016-10-10 17:38
Devel	[ DIR ]	drwxr-xr-x	2016-10-10 17:39
Digest	[ DIR ]	drwxr-xr-x	2016-10-10 17:39
Encode	[ DIR ]	drwxr-xr-x	2016-10-10 17:39
Exporter	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
ExtUtils	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
File	[ DIR ]	drwxr-xr-x	2016-10-10 17:39
Filter	[ DIR ]	drwxr-xr-x	2016-10-10 17:39
Getopt	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
HTTP	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
Hash	[ DIR ]	drwxr-xr-x	2016-10-10 17:39
I18N	[ DIR ]	drwxr-xr-x	2016-10-10 17:39
IO	[ DIR ]	drwxr-xr-x	2016-10-10 17:39
IPC	[ DIR ]	drwxr-xr-x	2016-10-10 17:39
JSON	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
List	[ DIR ]	drwxr-xr-x	2016-10-10 17:39
Locale	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
MIME	[ DIR ]	drwxr-xr-x	2016-10-10 17:40
Math	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Memoize	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Module	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Net	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Package	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Params	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Parse	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Perl	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
PerlIO	[ DIR ]	drwxr-xr-x	2016-10-10 17:40
Pod	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Scalar	[ DIR ]	drwxr-xr-x	2016-10-10 17:39
Search	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Sys	[ DIR ]	drwxr-xr-x	2016-10-10 17:40
TAP	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Term	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Test	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Text	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Thread	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
Tie	[ DIR ]	drwxr-xr-x	2016-10-10 17:40
Time	[ DIR ]	drwxr-xr-x	2016-10-10 17:40
Unicode	[ DIR ]	drwxr-xr-x	2016-10-10 17:40
User	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
XS	[ DIR ]	drwxr-xr-x	2016-10-10 17:41
auto	[ DIR ]	drwxr-xr-x	2016-10-10 18:16
autodie	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
encoding	[ DIR ]	drwxr-xr-x	2016-10-10 17:36
feature	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
inc	[ DIR ]	drwxr-xr-x	2016-10-10 17:37
overload	[ DIR ]	drwxr-xr-x	2016-10-10 18:13
perl5db	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
threads	[ DIR ]	drwxr-xr-x	2016-10-10 17:40
unicore	[ DIR ]	drwxr-xr-x	2016-10-10 18:53
version	[ DIR ]	drwxr-xr-x	2016-10-10 17:38
warnings	[ DIR ]	drwxr-xr-x	2015-02-14 16:56
.exists	0 B	-rw-r--r--	2016-10-10 18:16
AnyDBM_File.pm	2.56 KB	-r--r--r--	2014-12-27 11:48
AnyDBM_File.t	3.36 KB	-r--r--r--	2014-12-27 11:48
AutoLoader.pm	15.43 KB	-r--r--r--	2014-12-27 11:48
AutoSplit.pm	19.18 KB	-r--r--r--	2014-12-27 11:48
B.pm	28.07 KB	-r--r--r--	2014-12-27 11:49
Benchmark.pm	29.22 KB	-r--r--r--	2014-12-27 11:49
Benchmark.t	21.04 KB	-r--r--r--	2014-12-27 11:48
CGI.pm	255.23 KB	-r--r--r--	2014-12-27 11:49
CORE.pod	3.19 KB	-r--r--r--	2014-12-27 11:48
CPAN.pm	134.45 KB	-r--r--r--	2014-12-27 11:48
Carp.pm	27.8 KB	-r--r--r--	2014-12-27 11:49
Config.pm	3.18 KB	-rw-r--r--	2016-10-10 17:36
Config.pod	229.34 KB	-rw-r--r--	2016-10-10 17:36
Config.t	8.26 KB	-r--r--r--	2014-12-27 11:48
Config_git.pl	409 B	-rw-r--r--	2016-10-10 17:36
Config_heavy.pl	40.41 KB	-rw-r--r--	2016-10-10 17:36
Cwd.pm	21.95 KB	-r--r--r--	2015-01-10 12:06
DB.pm	18.5 KB	-r--r--r--	2014-12-27 11:48
DB.t	16.28 KB	-r--r--r--	2014-12-27 11:48
DBM_Filter.pm	14.05 KB	-r--r--r--	2014-12-27 11:48
DB_File.pm	62.24 KB	-r--r--r--	2016-10-10 17:38
Digest.pm	10.35 KB	-r--r--r--	2014-12-27 11:48
DirHandle.pm	1.52 KB	-r--r--r--	2014-12-27 11:48
DirHandle.t	930 B	-r--r--r--	2014-12-27 11:48
Dumpvalue.pm	16.5 KB	-r--r--r--	2014-12-27 11:48
DynaLoader.pm	24.99 KB	-r--r--r--	2016-10-10 17:38
Encode.pm	32.44 KB	-r--r--r--	2014-12-27 11:49
English.pm	4.64 KB	-r--r--r--	2014-12-27 11:48
English.t	4.11 KB	-r--r--r--	2014-12-27 11:48
Env.pm	5.39 KB	-r--r--r--	2014-12-27 11:48
Errno.pm	6.33 KB	-r--r--r--	2016-10-10 17:36
Exporter.pm	18.31 KB	-r--r--r--	2014-12-27 11:49
Fatal.pm	59.38 KB	-r--r--r--	2014-12-27 11:49
Fcntl.pm	3.83 KB	-r--r--r--	2014-12-27 11:49
FileCache.pm	5.44 KB	-r--r--r--	2014-12-27 11:48
FileHandle.pm	6.62 KB	-r--r--r--	2014-12-27 11:48
FileHandle.t	2.48 KB	-r--r--r--	2014-12-27 11:48
FindBin.pm	4.45 KB	-r--r--r--	2014-12-27 11:48
FindBin.t	338 B	-r--r--r--	2014-12-27 11:48
GDBM_File.pm	1.51 KB	-r--r--r--	2014-12-27 11:48
IO.pm	1.36 KB	-r--r--r--	2014-12-27 11:49
Internals.t	5.04 KB	-r--r--r--	2014-12-27 11:48
Memoize.pm	35.28 KB	-r--r--r--	2014-12-27 11:48
NDBM_File.pm	2.44 KB	-r--r--r--	2014-12-27 11:49
NEXT.pm	18.05 KB	-r--r--r--	2014-12-27 11:48
O.pm	4.11 KB	-r--r--r--	2014-12-27 11:48
Opcode.pm	15.33 KB	-r--r--r--	2014-12-27 11:49
POSIX.pm	16.44 KB	-r--r--r--	2014-12-27 11:49
POSIX.pod	65.45 KB	-r--r--r--	2014-12-27 11:49
PerlIO.pm	10.21 KB	-r--r--r--	2014-12-27 11:48
SDBM_File.pm	3.46 KB	-r--r--r--	2014-12-27 11:49
Safe.pm	24.27 KB	-r--r--r--	2014-12-27 11:49
SelectSaver.pm	1.05 KB	-r--r--r--	2014-12-27 11:48
SelectSaver.t	365 B	-r--r--r--	2014-12-27 11:48
SelfLoader.pm	16.94 KB	-r--r--r--	2014-12-27 11:49
Socket.pm	35.47 KB	-r--r--r--	2014-12-27 11:49
Storable.pm	42.13 KB	-r--r--r--	2015-01-15 22:12
Symbol.pm	4.68 KB	-r--r--r--	2014-12-27 11:48
Symbol.t	2.52 KB	-r--r--r--	2014-12-27 11:48
Test.pm	28.12 KB	-r--r--r--	2014-12-27 11:48
Thread.pm	8.09 KB	-r--r--r--	2014-12-27 11:48
Thread.t	1.59 KB	-r--r--r--	2014-12-27 11:48
UNIVERSAL.pm	6.97 KB	-r--r--r--	2014-12-27 11:49
XSLoader.pm	9.99 KB	-r--r--r--	2016-10-10 17:38
_charnames.pm	31.63 KB	-r--r--r--	2014-12-27 11:49
arybase.pm	2.75 KB	-r--r--r--	2014-12-27 11:49
attributes.pm	15.95 KB	-r--r--r--	2014-12-27 12:30
autodie.pm	11.9 KB	-r--r--r--	2014-12-27 11:49
autouse.pm	4.14 KB	-r--r--r--	2014-12-27 11:48
base.pm	7.21 KB	-r--r--r--	2014-12-27 11:48
bigint.pm	18.29 KB	-r--r--r--	2014-12-27 11:49
bignum.pm	17.7 KB	-r--r--r--	2014-12-27 11:49
bigrat.pm	13.58 KB	-r--r--r--	2014-12-27 11:49
blib.pm	2.04 KB	-r--r--r--	2014-12-27 11:48
blib.t	1.81 KB	-r--r--r--	2014-12-27 11:48
buildcustomize.pl	1.1 KB	-rw-r--r--	2016-10-10 17:36
bytes.pm	2.96 KB	-r--r--r--	2014-12-27 11:48
bytes.t	2.78 KB	-r--r--r--	2014-12-27 11:48
bytes_heavy.pl	758 B	-r--r--r--	2014-12-27 11:48
charnames.pm	20.39 KB	-r--r--r--	2014-12-27 11:49
charnames.t	372.58 KB	-r--r--r--	2014-12-27 11:49
constant.pm	13.99 KB	-r--r--r--	2014-12-27 11:49
dbm_filter_util.pl	1.83 KB	-r--r--r--	2014-12-27 11:48
deprecate.pm	3.01 KB	-r--r--r--	2014-12-27 11:48
diagnostics.pm	18.26 KB	-r--r--r--	2014-12-27 11:48
diagnostics.t	7.1 KB	-r--r--r--	2014-12-27 11:49
dumpvar.pl	15.24 KB	-r--r--r--	2014-12-27 11:48
dumpvar.t	5.81 KB	-r--r--r--	2014-12-27 11:48
encoding.pm	20.04 KB	-r--r--r--	2014-12-27 11:49
experimental.pm	3.88 KB	-r--r--r--	2014-12-27 11:49
feature.pm	13.46 KB	-rw-r--r--	2014-12-27 12:46
feature.t	78 B	-r--r--r--	2014-12-27 11:48
fields.pm	9.24 KB	-r--r--r--	2014-12-27 11:48
filetest.pm	3.91 KB	-r--r--r--	2014-12-27 11:48
filetest.t	3 KB	-r--r--r--	2014-12-27 11:48
h2ph.t	1.58 KB	-r--r--r--	2014-12-27 11:48
h2xs.t	7.64 KB	-r--r--r--	2014-12-27 11:48
if.pm	2.63 KB	-r--r--r--	2014-12-27 11:48
integer.pm	3.18 KB	-r--r--r--	2014-12-27 11:48
integer.t	1.32 KB	-r--r--r--	2014-12-27 11:48
less.pm	3.13 KB	-r--r--r--	2014-12-27 11:48
less.t	901 B	-r--r--r--	2014-12-27 11:48
lib.pm	5.87 KB	-r--r--r--	2016-10-10 17:37
locale.pm	2.13 KB	-r--r--r--	2014-12-27 11:49
locale.t	72.86 KB	-r--r--r--	2014-12-27 11:49
mro.pm	9.86 KB	-r--r--r--	2014-12-27 11:49
open.pm	7.83 KB	-r--r--r--	2014-12-27 11:48
open.t	6.4 KB	-r--r--r--	2014-12-27 11:48
ops.pm	997 B	-r--r--r--	2014-12-27 11:48
overload.pm	51.41 KB	-r--r--r--	2014-12-27 11:49
overload.t	71.98 KB	-r--r--r--	2014-12-27 11:49
overload64.t	8.33 KB	-r--r--r--	2014-12-27 11:48
overloading.pm	1.77 KB	-r--r--r--	2014-12-27 11:48
overloading.t	3.25 KB	-r--r--r--	2014-12-27 11:48
parent.pm	2.83 KB	-r--r--r--	2014-12-27 11:48
perl5db.pl	307.01 KB	-r--r--r--	2014-12-27 11:49
perl5db.t	56.06 KB	-r--r--r--	2014-12-27 11:49
perldoc.pod	8.69 KB	-r--r--r--	2014-12-27 11:48
perlfaq.pm	94 B	-r--r--r--	2014-12-27 11:49
perlfaq.pod	22.18 KB	-r--r--r--	2014-12-27 11:48
perlfaq1.pod	14.36 KB	-r--r--r--	2014-12-27 11:49
perlfaq2.pod	9.24 KB	-r--r--r--	2014-12-27 11:49
perlfaq3.pod	37.67 KB	-r--r--r--	2014-12-27 11:48
perlfaq4.pod	87.39 KB	-r--r--r--	2014-12-27 11:49
perlfaq5.pod	54.11 KB	-r--r--r--	2014-12-27 11:49
perlfaq6.pod	38.66 KB	-r--r--r--	2014-12-27 11:49
perlfaq7.pod	36.98 KB	-r--r--r--	2014-12-27 11:49
perlfaq8.pod	48.9 KB	-r--r--r--	2014-12-27 11:48
perlfaq9.pod	14.7 KB	-r--r--r--	2014-12-27 11:48
perlglossary.pod	133.98 KB	-r--r--r--	2014-12-27 11:48
perlxs.pod	76.6 KB	-r--r--r--	2014-12-27 11:49
perlxstut.pod	48.91 KB	-r--r--r--	2014-12-27 11:48
perlxstypemap.pod	23.02 KB	-r--r--r--	2014-12-27 11:49
re.pm	17.55 KB	-r--r--r--	2014-12-27 11:49
sigtrap.pm	7.44 KB	-r--r--r--	2014-12-27 11:48
sigtrap.t	2.65 KB	-r--r--r--	2014-12-27 11:48
sort.pm	5.94 KB	-r--r--r--	2014-12-27 11:48
sort.t	5.54 KB	-r--r--r--	2014-12-27 11:49
strict.pm	3.83 KB	-r--r--r--	2014-12-27 11:49
strict.t	439 B	-r--r--r--	2014-12-27 11:49
subs.pm	848 B	-r--r--r--	2014-12-27 11:48
subs.t	79 B	-r--r--r--	2014-12-27 11:48
threads.pm	34.93 KB	-r--r--r--	2014-12-27 11:49
utf8.pm	7.64 KB	-r--r--r--	2014-12-27 11:49
utf8.t	21.67 KB	-r--r--r--	2014-12-27 11:48
utf8_heavy.pl	31 KB	-r--r--r--	2014-12-27 11:49
vars.pm	2.36 KB	-r--r--r--	2014-12-27 11:48
vars.t	2.68 KB	-r--r--r--	2014-12-27 11:48
vars_carp.t	246 B	-r--r--r--	2014-12-27 11:48
version.pm	1.58 KB	-r--r--r--	2014-12-27 11:48
version.pod	9.62 KB	-r--r--r--	2014-12-27 11:48
vmsish.pm	4.21 KB	-r--r--r--	2014-12-27 11:48
vmsish.t	7.21 KB	-r--r--r--	2014-12-27 11:48
warnings.pm	38.5 KB	-rw-r--r--	2014-12-27 11:49
warnings.t	120 B	-r--r--r--	2014-12-27 11:48

Rename

#!./perl

BEGIN {
	chdir 't' if -d 't';
	@INC = '../lib';
	require Config; import Config;
	require './test.pl';
}

plan 23;

# open::import expects 'open' as its first argument, but it clashes with open()
sub import {
	open::import( 'open', @_ );
}

# can't use require_ok() here, with a name like 'open'
ok( require 'open.pm', 'requiring open' );

# this should fail
eval { import() };
like( $@, qr/needs explicit list of PerlIO layers/,
	'import should fail without args' );

# prevent it from loading I18N::Langinfo, so we can test encoding failures
my $warn;
local $SIG{__WARN__} = sub {
	$warn .= shift;
};

# and it shouldn't be able to find this layer
$warn = '';
eval q{ no warnings 'layer'; use open IN => ':macguffin' ; };
is( $warn, '',
	'should not warn about unknown layer with bad layer provided' );

$warn = '';
eval q{ use warnings 'layer'; use open IN => ':macguffin' ; };
like( $warn, qr/Unknown PerlIO layer/,
	'should warn about unknown layer with bad layer provided' );

# open :locale logic changed since open 1.04, new logic
# difficult to test portably.

# see if it sets the magic variables appropriately
import( 'IN', ':crlf' );
is( $^H{'open_IN'}, 'crlf', 'should have set crlf layer' );

# it should reset them appropriately, too
import( 'IN', ':raw' );
is( $^H{'open_IN'}, 'raw', 'should have reset to raw layer' );

# it dies if you don't set IN, OUT, or IO
eval { import( 'sideways', ':raw' ) };
like( $@, qr/Unknown PerlIO layer class/, 'should croak with unknown class' );

# but it handles them all so well together
import( 'IO', ':raw :crlf' );
is( ${^OPEN}, ":raw :crlf\0:raw :crlf",
	'should set multi types, multi layer' );
is( $^H{'open_IO'}, 'crlf', 'should record last layer set in %^H' );

SKIP: {
    skip("no perlio, no :utf8", 12) unless (find PerlIO::Layer 'perlio');

eval <<EOE;
    use open ':utf8';
    open(O, ">utf8");
    print O chr(0x100);
    close O;
    open(I, "<utf8");
    is(ord(<I>), 0x100, ":utf8 single wide character round-trip");
    close I;
EOE

open F, ">a";
    @a = map { chr(1 << ($_ << 2)) } 0..5; # 0x1, 0x10, .., 0x100000
    unshift @a, chr(0); # ... and a null byte in front just for fun
    print F @a;
    close F;

sub systell {
        use Fcntl 'SEEK_CUR';
        sysseek($_[0], 0, SEEK_CUR);
    }

require bytes; # not use

my $ok;

open F, "<:utf8", "a";
    $ok = $a = 0;
    for (@a) {
        unless (
		($c = sysread(F, $b, 1)) == 1  &&
		length($b)               == 1  &&
		ord($b)                  == ord($_) &&
		systell(F)               == ($a += bytes::length($b))
		) {
	    print '# ord($_)           == ', ord($_), "\n";
	    print '# ord($b)           == ', ord($b), "\n";
	    print '# length($b)        == ', length($b), "\n";
	    print '# bytes::length($b) == ', bytes::length($b), "\n";
	    print '# systell(F)        == ', systell(F), "\n";
	    print '# $a                == ', $a, "\n";
	    print '# $c                == ', $c, "\n";
	    last;
	}
	$ok++;
    }
    close F;
    ok($ok == @a,
       "on :utf8 streams sysread() should work on characters, not bytes");

sub diagnostics {
	print '# ord($_)           == ', ord($_), "\n";
	print '# bytes::length($_) == ', bytes::length($_), "\n";
	print '# systell(G)        == ', systell(G), "\n";
	print '# $a                == ', $a, "\n";
	print '# $c                == ', $c, "\n";
    }

my %actions = (
		   syswrite => sub { syswrite G, shift; },
		   'syswrite len' => sub { syswrite G, shift, 1; },
		   'syswrite len pad' => sub {
		       my $temp = shift() . "\243";
		       syswrite G, $temp, 1; },
		   'syswrite off' => sub { 
		       my $temp = "\351" . shift();
		       syswrite G, $temp, 1, 1; },
		   'syswrite off pad' => sub { 
		       my $temp = "\351" . shift() . "\243";
		       syswrite G, $temp, 1, 1; },
		  );

foreach my $key (sort keys %actions) {
	# syswrite() on should work on characters, not bytes
	open G, ">:utf8", "b";

print "# $key\n";
	$ok = $a = 0;
	for (@a) {
	    unless (
		    ($c = $actions{$key}($_)) == 1 &&
		    systell(G)                == ($a += bytes::length($_))
		   ) {
		diagnostics();
		last;
	    }
	    $ok++;
	}
	close G;
	ok($ok == @a,
	   "on :utf8 streams syswrite() should work on characters, not bytes");

open G, "<:utf8", "b";
	$ok = $a = 0;
	for (@a) {
	    unless (
		    ($c = sysread(G, $b, 1)) == 1 &&
		    length($b)               == 1 &&
		    ord($b)                  == ord($_) &&
		    systell(G)               == ($a += bytes::length($_))
		   ) {
		print '# ord($_)           == ', ord($_), "\n";
		print '# ord($b)           == ', ord($b), "\n";
		print '# length($b)        == ', length($b), "\n";
		print '# bytes::length($b) == ', bytes::length($b), "\n";
		print '# systell(G)        == ', systell(G), "\n";
		print '# $a                == ', $a, "\n";
		print '# $c                == ', $c, "\n";
		last;
	    }
	    $ok++;
	}
	close G;
	ok($ok == @a,
	   "checking syswrite() output on :utf8 streams by reading it back in");
    }
}
SKIP: {
    skip("no perlio", 2) unless (find PerlIO::Layer 'perlio');
    skip("no Encode", 2) unless $Config{extensions} =~ m{\bEncode\b};

eval q[use Encode::Alias;use open ":std", ":locale"];
    is($@, '', 'can use :std and :locale');
}

{
    local $ENV{PERL_UNICODE};
    delete $ENV{PERL_UNICODE};
    is runperl(
         progs => [
            'use open q\:encoding(UTF-8)\, q-:std-;',
            'use open q\:encoding(UTF-8)\;',
            'if(($_ = <STDIN>) eq qq-\x{100}\n-) { print qq-stdin ok\n- }',
            'else { print qq-got -, join(q q q, map ord, split//), "\n" }',
            'print STDOUT qq-\x{ff}\n-;',
            'print STDERR qq-\x{ff}\n-;',
         ],
         stdin => "\xc4\x80\n",
         stderr => 1,
       ),
       "stdin ok\n\xc3\xbf\n\xc3\xbf\n",
       "use open without :std does not affect standard handles",
    ;
}

END {
    1 while unlink "utf8";
    1 while unlink "a";
    1 while unlink "b";
}

# the test cases beyond __DATA__ need to be executed separately

__DATA__
$ENV{LC_ALL} = 'nonexistent.euc';
eval { open::_get_locale_encoding() };
like( $@, qr/too ambiguous/, 'should die with ambiguous locale encoding' );
%%%
# the special :locale layer
$ENV{LC_ALL} = $ENV{LANG} = 'ru_RU.KOI8-R';
# the :locale will probe the locale environment variables like LANG
use open OUT => ':locale';
open(O, ">koi8");
print O chr(0x430); # Unicode CYRILLIC SMALL LETTER A = KOI8-R 0xc1
close O;
open(I, "<koi8");
printf "%#x\n", ord(<I>), "\n"; # this should print 0xc1
close I;
%%%