#! /usr/local/bin/perl -w

# vim: tabstop=4
# vim: syntax=perl

use strict;

use Test;

BEGIN {
	plan tests => 7;
}

use Locale::Recode;

sub int2utf8;

my $local2ucs = {};
my $ucs2local = {};

while (<DATA>) {
	my ($code, $ucs, undef) = map { oct $_ } split /\s+/, $_;
	$local2ucs->{$code} = $ucs;
	$ucs2local->{$ucs} = $code unless $ucs == 0xfffd;
}

my $cd_int = Locale::Recode->new (from => 'ISO_5428',
				  to => 'INTERNAL');
ok !$cd_int->getError;

my $cd_utf8 = Locale::Recode->new (from => 'ISO_5428',
				   to => 'UTF-8');
ok !$cd_utf8->getError;

my $cd_rev = Locale::Recode->new (from => 'INTERNAL',
				  to => 'ISO_5428');
ok !$cd_rev->getError;

# Convert into internal representation.
my $result_int = 1;
while (my ($code, $ucs) = each %$local2ucs) {
    my $outbuf = chr $code;
    my $result = $cd_int->recode ($outbuf);
    unless ($result && $outbuf->[0] == $ucs) {
	$result_int = 0;
	last;
    }
}
ok $result_int;

# Convert to UTF-8.
my $result_utf8 = 1;
while (my ($code, $ucs) = each %$local2ucs) {
    my $outbuf = chr $code;
    my $result = $cd_utf8->recode ($outbuf);
    unless ($result && $outbuf eq int2utf8 $ucs) {
        $result_utf8 = 0;
        last;
    }
}
ok $result_utf8;

# Convert from internal representation.
my $result_rev = 1;
while (my ($ucs, $code) = each %$ucs2local) {
    my $outbuf = [ $ucs ];
    my $result = $cd_rev->recode ($outbuf);
    unless ($result && $code == ord $outbuf) {
        $result_int = 0;
        last;
    }
}
ok $result_int;

# Check handling of unknown characters.
my $test_string1 = [ unpack 'c*', ' Supergirl ' ];
$test_string1->[0] = 0xad0be;
$test_string1->[-1] = 0xad0be;
my $test_string2 = [ unpack 'c*', 'Supergirl' ];

my $unknown = "\x3f"; # Unknown character!

$cd_rev = Locale::Recode->new (from => 'INTERNAL',
		               to => 'ISO_5428',
				)
&& $cd_rev->recode ($test_string1)
&& $cd_rev->recode ($test_string2)
&& ($test_string2 = $unknown . $test_string2 . $unknown);

ok $test_string1 eq $test_string2;

sub int2utf8
{
    my $ucs4 = shift;
    
    if ($ucs4 <= 0x7f) {
	return chr $ucs4;
    } elsif ($ucs4 <= 0x7ff) {
	return pack ("C2", 
		     (0xc0 | (($ucs4 >> 6) & 0x1f)),
		     (0x80 | ($ucs4 & 0x3f)));
    } elsif ($ucs4 <= 0xffff) {
	return pack ("C3", 
		     (0xe0 | (($ucs4 >> 12) & 0xf)),
		     (0x80 | (($ucs4 >> 6) & 0x3f)),
		     (0x80 | ($ucs4 & 0x3f)));
    } elsif ($ucs4 <= 0x1fffff) {
	return pack ("C4", 
		     (0xf0 | (($ucs4 >> 18) & 0x7)),
		     (0x80 | (($ucs4 >> 12) & 0x3f)),
		     (0x80 | (($ucs4 >> 6) & 0x3f)),
		     (0x80 | ($ucs4 & 0x3f)));
    } elsif ($ucs4 <= 0x3ffffff) {
	return pack ("C5", 
		     (0xf0 | (($ucs4 >> 24) & 0x3)),
		     (0x80 | (($ucs4 >> 18) & 0x3f)),
		     (0x80 | (($ucs4 >> 12) & 0x3f)),
		     (0x80 | (($ucs4 >> 6) & 0x3f)),
		     (0x80 | ($ucs4 & 0x3f)));
    } else {
	return pack ("C6", 
		     (0xf0 | (($ucs4 >> 30) & 0x3)),
		     (0x80 | (($ucs4 >> 24) & 0x1)),
		     (0x80 | (($ucs4 >> 18) & 0x3f)),
		     (0x80 | (($ucs4 >> 12) & 0x3f)),
		     (0x80 | (($ucs4 >> 6) & 0x3f)),
		     (0x80 | ($ucs4 & 0x3f)));
    }
}

#Local Variables:
#mode: perl
#perl-indent-level: 4
#perl-continued-statement-offset: 4
#perl-continued-brace-offset: 0
#perl-brace-offset: -4
#perl-brace-imaginary-offset: 0
#perl-label-offset: -4
#tab-width: 4
#End:


__DATA__
0x00	0x0000
0x01	0x0001
0x02	0x0002
0x03	0x0003
0x04	0x0004
0x05	0x0005
0x06	0x0006
0x07	0x0007
0x08	0x0008
0x09	0x0009
0x0a	0x000a
0x0b	0x000b
0x0c	0x000c
0x0d	0x000d
0x0e	0x000e
0x0f	0x000f
0x10	0x0010
0x11	0x0011
0x12	0x0012
0x13	0x0013
0x14	0x0014
0x15	0x0015
0x16	0x0016
0x17	0x0017
0x18	0x0018
0x19	0x0019
0x1a	0x001a
0x1b	0x001b
0x1c	0x001c
0x1d	0x001d
0x1e	0x001e
0x1f	0x001f
0x20	0x0020
0x21	0xe002
0x22	0xe003
0x23	0xe009
0x24	0xe005
0x25	0xe012
0x26	0xe013
0x27	0xe014
0x30	0xfffd
0x30	0xfffd
0x30	0xfffd
0x30	0xfffd
0x30	0xfffd
0x30	0xfffd
0x30	0xfffd
0x30	0xfffd
0x30	0x00ab
0x31	0x00bb
0x32	0x201d
0x33	0x201c
0x34	0x0374
0x35	0x0375
0x3b	0xfffd
0x3b	0xfffd
0x3b	0xfffd
0x3b	0xfffd
0x3b	0xfffd
0x3b	0x00b7
0x3f	0xfffd
0x3f	0xfffd
0x3f	0xfffd
0x3f	0x003b
0x41	0xfffd
0x41	0x0391
0x42	0x0392
0x44	0xfffd
0x44	0x0393
0x45	0x0394
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0x47	0x03da
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0x58	0xfffd
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0x5c	0x03a8
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0x5e	0x03e0
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0x63	0x03d0
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0xf6	0xfffd
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0xf8	0xfffd
0xf9	0xfffd
0xfa	0xfffd
0xfb	0xfffd
0xfc	0xfffd
0xfd	0xfffd
0xfe	0xfffd
0xff	0xfffd
