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#! /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 $cd_int = Locale::Recode->new (from => 'EBCDIC-ES',
				  to => 'INTERNAL');
ok !$cd_int->getError;

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

my $cd_rev = Locale::Recode->new (from => 'INTERNAL',
				  to => 'EBCDIC-ES');
ok !$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 => 'EBCDIC-ES',
				)
&& $cd_rev->recode ($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	0x009c
0x05	0x0009
0x06	0x0086
0x07	0x007f
0x08	0x0097
0x09	0x008d
0x0a	0x008e
0x0b	0x000b
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0x0d	0x000d
0x0e	0x000e
0x0f	0x000f
0x10	0x0010
0x11	0x0011
0x12	0x0012
0x13	0x0013
0x14	0x009d
0x15	0x0085
0x16	0x0008
0x17	0x0087
0x18	0x0018
0x19	0x0019
0x1a	0x0092
0x1b	0x008f
0x1c	0x001c
0x1d	0x001d
0x1e	0x001e
0x1f	0x001f
0x20	0x0080
0x21	0x0081
0x22	0x0082
0x23	0x0083
0x24	0x0084
0x25	0x000a
0x26	0x0017
0x27	0x001b
0x28	0x0088
0x29	0x0089
0x2a	0x008a
0x2b	0x008b
0x2c	0x008c
0x2d	0x0005
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0x2f	0x0007
0x30	0x0090
0x31	0x0091
0x32	0x0016
0x33	0x0093
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0x37	0x0004
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0x39	0x0099
0x3a	0x009a
0x3b	0x009b
0x3c	0x0014
0x3d	0x0015
0x3e	0x009e
0x3f	0x001a
0x40	0x0020
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0x4a	0xfffd
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0x79	0x0060
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0x7b	0x00d1
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0x7d	0x0027
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0x7f	0x0022
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0x85	0x0065
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0x91	0x006a
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0xc3	0x0043
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0xc7	0x0047
0xc8	0x0048
0xc9	0x0049
0xd0	0xfffd
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0xd0	0xfffd
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0xd0	0x007d
0xd1	0x004a
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0xf0	0xfffd
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0xf3	0x0033
0xf4	0x0034
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0xf6	0x0036
0xf7	0x0037
0xf8	0x0038
0xf9	0x0039
0xff	0xfffd
0xff	0xfffd
0xff	0xfffd
0xff	0xfffd
0xff	0xfffd
0xff	0x009f