#!./perl -w

BEGIN {
    chdir 't' if -d 't';
    $^INCLUDE_PATH = qw(../lib .);
    require "test.pl";
}

plan tests => 52;

use utf8;

$a = "B\x{fc}f";
$b = "G\x{100}r";
my $c = 0x200;

do {
    my $s = sprintf "\%s", $a;
    is($s, $a, "\%s a");
};

do {
    my $s = sprintf "\%s", $b;
    is($s, $b, "\%s b");
};

do {
    my $s = sprintf "\%s\%s", $a, $b;
    is($s, $a.$b, "\%s\%s a b");
};

do {
    my $s = sprintf "\%s\%s", $b, $a;
    is($s, $b.$a, "\%s\%s b a");
};

do {
    my $s = sprintf "\%s\%s", $b, $b;
    is($s, $b.$b, "\%s\%s b b");
};

do {
    my $s = sprintf "\%s$b", $a;
    is($s, $a.$b, "\%sb a");
};

do {
    my $s = sprintf "$b\%s", $a;
    is($s, $b.$a, "b\%s a");
};

do {
    my $s = sprintf "\%s$a", $b;
    is($s, $b.$a, "\%sa b");
};

do {
    my $s = sprintf "$a\%s", $b;
    is($s, $a.$b, "a\%s b");
};

do {
    my $s = sprintf "$a\%s", $a;
    is($s, $a.$a, "a\%s a");
};

do {
    my $s = sprintf "$b\%s", $b;
    is($s, $b.$b, "a\%s b");
};

do {
    my $s = sprintf "\%c", $c;
    is($s, chr($c), "\%c c");
};

do {
    my $s = sprintf "\%s\%c", $a, $c;
    is($s, $a.chr($c), "\%s\%c a c");
};

do {
    my $s = sprintf "\%c\%s", $c, $a;
    is($s, chr($c).$a, "\%c\%s c a");
};

do {
    my $s = sprintf "\%c$b", $c;
    is($s, chr($c).$b, "\%cb c");
};

do {
    my $s = sprintf "\%s\%c$b", $a, $c;
    is($s, $a.chr($c).$b, "\%s\%cb a c");
};

do {
    my $s = sprintf "\%c\%s$b", $c, $a;
    is($s, chr($c).$a.$b, "\%c\%sb c a");
};

do {
    my $s = sprintf "$b\%c", $c;
    is($s, $b.chr($c), "b\%c c");
};

do {
    my $s = sprintf "$b\%s\%c", $a, $c;
    is($s, $b.$a.chr($c), "b\%s\%c a c");
};

do {
    my $s = sprintf "$b\%c\%s", $c, $a;
    is($s, $b.chr($c).$a, "b\%c\%s c a");
};

do {
    # 20010407.008 sprintf removes utf8-ness
    $a = sprintf "\x{1234}";
    is((sprintf "\%x \%d", unpack("U*", $a), length($a)),    "1234 1",
       '\x{1234}');
    $a = sprintf "\%s", "\x{5678}";
    is((sprintf "\%x \%d", unpack("U*", $a), length($a)),    "5678 1",
       '%s \x{5678}');
    $a = sprintf "\x{1234}\%s", "\x{5678}";
    is((sprintf "\%x \%x \%d", unpack("U*", $a), length($a)), "1234 5678 2",
       '\x{1234}%s \x{5678}');
};

do {
    # check that utf8ness doesn't "accumulate"

    my $w = "w\x{fc}";
    my $sprintf;

    $sprintf = sprintf "\%s\%s", $w, "$w\x{100}";
    is(substr($sprintf,0,2), $w, "utf8 echo");

    $sprintf = sprintf "\%s\%s", $w, "$w\x{100}";    
    is(substr($sprintf,0,2), $w, "utf8 echo echo");
};

my @values =@(chr 110, chr 255, chr 256);

foreach my $prefix ( @values) {
    foreach my $vector ( map {$_ . $_}, @values) {

	my $format = "$prefix\%*vd";

	foreach my $dot ( @values) {
	    my $result = sprintf $format, $dot, $vector;
	    is (length $result, 8)
		or print $^STDOUT, "# ", join (',', map {ord $_}, @( $prefix, $dot, $vector)),
		  "\n";
	}
    }
}