#!./perl

BEGIN {
    require './test.pl';
}

plan( tests => 49 );

require bytes;

run_tests() unless caller;

sub run_tests {

my $foo = 'Now is the time for all good men to come to the aid of their country.';

my $first = substr($foo,0,index($foo,'the'));
is($first, "Now is ");

my $last = substr($foo,rindex($foo,'the'),100);
is($last, "their country.");

$last = substr($foo,index($foo,'Now'),2);
is($last, "No");

$last = substr($foo,rindex($foo,'Now'),2);
is($last, "No");

$last = substr($foo,index($foo,'.'),100);
is($last, ".");

$last = substr($foo,rindex($foo,'.'),100);
is($last, ".");

is(index("ababa","a",-1), 0);
is(index("ababa","a",0), 0);
is(index("ababa","a",1), 2);
is(index("ababa","a",2), 2);
is(index("ababa","a",3), 4);
is(index("ababa","a",4), 4);
is(index("ababa","a",5), -1);

is(rindex("ababa","a",-1), -1);
is(rindex("ababa","a",0), 0);
is(rindex("ababa","a",1), 0);
is(rindex("ababa","a",2), 2);
is(rindex("ababa","a",3), 2);
is(rindex("ababa","a",4), 4);
is(rindex("ababa","a",5), 4);

# tests for empty search string
is(index("abc", "", -1), 0);
is(index("abc", "", 0), 0);
is(index("abc", "", 1), 1);
is(index("abc", "", 2), 2);
is(index("abc", "", 3), 3);
is(index("abc", "", 4), 3);
is(rindex("abc", "", -1), 0);
is(rindex("abc", "", 0), 0);
is(rindex("abc", "", 1), 1);
is(rindex("abc", "", 2), 2);
is(rindex("abc", "", 3), 3);
is(rindex("abc", "", 4), 3);

do {
    # utf8
    use utf8;
    $a = "foo \x{1234}bar";
    
    is(index($a, "\x{1234}"), 4);
    is(index($a, "bar",    ), 5);

    is(rindex($a, "\x{1234}"), 4);
    is(rindex($a, "foo",    ), 0);
    is(rindex($a, "bar",    ), 5);

    is(bytes::index($a, "\x{1234}"), 4);
    is(bytes::index($a, "bar",    ), 7);

    is(bytes::rindex($a, "\x{1234}"), 4);
    is(bytes::rindex($a, "foo",    ), 0);
    is(bytes::rindex($a, "bar",    ), 7);
};

do {
    use utf8;
    my $needle = "\x{1230}\x{1270}";
    my @needles = @("\x{1230}", "\x{1270}");
    my $haystack = "\x{1228}\x{1228}\x{1230}\x{1270}";
    foreach (  @needles ) {
	my $a = index ( "\x{1228}\x{1228}\x{1230}\x{1270}", $_ );
	my $b = index ( $haystack, $_ );
	is($a, $b, q{[perl #22375] 'split'/'index' problem for utf8});
    }
    $needle = "\x{1270}\x{1230}"; # Transpose them.
    @needles = @("\x{1270}", "\x{1230}");
    foreach (  @needles ) {
	my $a = index ( "\x{1228}\x{1228}\x{1230}\x{1270}", $_ );
	my $b = index ( $haystack, $_ );
	is($a, $b, q{[perl #22375] 'split'/'index' problem for utf8});
    }
};

do {
    use utf8;

    my $a = "\x{80000000}";
    my $s = $a.'defxyz';
    is(index($s, 'def'), 1, "0x80000000 is a single character");

    my $b = "\x{fffffffd}";
    my $t = $b.'pqrxyz';
    is(index($t, 'pqr'), 1, "0xfffffffd is a single character");

    local $^UTF8CACHE = -1;
    is(index($t, 'xyz'), 4, "0xfffffffd and utf8cache");
};

}