BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
+ require './test.pl'; require './charset_tools.pl';
}
-require './test.pl';
-plan( tests => 28 );
+use strict;
+plan( tests => 121 );
-$foo = 'Now is the time for all good men to come to the aid of their country.';
+run_tests() unless caller;
-$first = substr($foo,0,index($foo,'the'));
+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 ");
-$last = substr($foo,rindex($foo,'the'),100);
+my $last = substr($foo,rindex($foo,'the'),100);
is($last, "their country.");
$last = substr($foo,index($foo,'Now'),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);
+
$a = "foo \x{1234}bar";
is(index($a, "\x{1234}"), 4);
is($a, $b, q{[perl #22375] 'split'/'index' problem for utf8});
}
}
+
+{
+ my $search;
+ my $text;
+ $search = latin1_to_native("foo \xc9 bar");
+ $text = latin1_to_native("a\xa3\xa3a $search $search quux");
+
+ my $text_utf8 = $text;
+ utf8::upgrade($text_utf8);
+ my $search_utf8 = $search;
+ utf8::upgrade($search_utf8);
+
+ is (index($text, $search), 5);
+ is (rindex($text, $search), 18);
+ is (index($text, $search_utf8), 5);
+ is (rindex($text, $search_utf8), 18);
+ is (index($text_utf8, $search), 5);
+ is (rindex($text_utf8, $search), 18);
+ is (index($text_utf8, $search_utf8), 5);
+ is (rindex($text_utf8, $search_utf8), 18);
+
+ my $text_octets = $text_utf8;
+ utf8::encode ($text_octets);
+ my $search_octets = $search_utf8;
+ utf8::encode ($search_octets);
+
+ is (index($text_octets, $search_octets), 7, "index octets, octets")
+ or _diag ($text_octets, $search_octets);
+ is (rindex($text_octets, $search_octets), 21, "rindex octets, octets");
+ is (index($text_octets, $search_utf8), -1);
+ is (rindex($text_octets, $search_utf8), -1);
+ is (index($text_utf8, $search_octets), -1);
+ is (rindex($text_utf8, $search_octets), -1);
+
+ is (index($text_octets, $search), -1);
+ is (rindex($text_octets, $search), -1);
+ is (index($text, $search_octets), -1);
+ is (rindex($text, $search_octets), -1);
+}
+
+SKIP: {
+ skip "UTF-EBCDIC is limited to 0x7fffffff", 3 if ord("A") == 193;
+
+ 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");
+}
+
+
+# Tests for NUL characters.
+{
+ my @tests = (
+ ["", -1, -1, -1],
+ ["foo", -1, -1, -1],
+ ["\0", 0, -1, -1],
+ ["\0\0", 0, 0, -1],
+ ["\0\0\0", 0, 0, 0],
+ ["foo\0", 3, -1, -1],
+ ["foo\0foo\0\0", 3, 7, -1],
+ );
+ foreach my $l (1 .. 3) {
+ my $q = "\0" x $l;
+ my $i = 0;
+ foreach my $test (@tests) {
+ $i ++;
+ my $str = $$test [0];
+ my $res = $$test [$l];
+
+ {
+ is (index ($str, $q), $res, "Find NUL character(s)");
+ }
+
+ #
+ # Bug #53746 shows a difference between variables and literals,
+ # so test literals as well.
+ #
+ my $test_str = qq {is (index ("$str", "$q"), $res, } .
+ qq {"Find NUL character(s)")};
+ $test_str =~ s/\0/\\0/g;
+
+ eval $test_str;
+ die $@ if $@;
+ }
+ }
+}
+
+{
+ # RT#75898
+ is(eval { utf8::upgrade($_ = " "); index $_, " ", 72 }, -1,
+ 'UTF-8 cache handles offset beyond the end of the string');
+ $_ = "\x{100}BC";
+ is(index($_, "C", 4), -1,
+ 'UTF-8 cache handles offset beyond the end of the string');
+}
+
+# RT #89218
+use constant {PVBM => 'galumphing', PVBM2 => 'bang'};
+
+sub index_it {
+ is(index('galumphing', PVBM), 0,
+ "index isn't confused by format compilation");
+}
+
+index_it();
+is($^A, '', '$^A is empty');
+formline PVBM;
+is($^A, 'galumphing', "formline isn't confused by index compilation");
+index_it();
+
+$^A = '';
+# must not do index here before formline.
+is($^A, '', '$^A is empty');
+formline PVBM2;
+is($^A, 'bang', "formline isn't confused by index compilation");
+is(index('bang', PVBM2), 0, "index isn't confused by format compilation");
+
+{
+ use constant perl => "rules";
+ is(index("perl rules", perl), 5, 'first index of a constant works');
+ is(index("rules 1 & 2", perl), 0, 'second index of the same constant works');
+}
+
+# PVBM compilation should not flatten ref constants
+use constant riffraff => \our $referent;
+index "foo", riffraff;
+is ref riffraff, 'SCALAR', 'index does not flatten ref constants';
+
+package o { use overload '""' => sub { "foo" } }
+bless \our $referent, o::;
+is index("foo", riffraff), 0,
+ 'index respects changes in ref stringification';
+
+use constant quire => ${qr/(?{})/}; # A REGEXP, not a reference to one
+index "foo", quire;
+eval ' "" =~ quire ';
+is $@, "", 'regexp constants containing code blocks are not flattened';
+
+use constant bang => $! = 8;
+index "foo", bang;
+cmp_ok bang, '==', 8, 'dualvar constants are not flattened';
+
+use constant u => undef;
+{
+ my $w;
+ local $SIG{__WARN__} = sub { $w .= shift };
+ eval '
+ use warnings;
+ sub { () = index "foo", u; }
+ ';
+ is $w, undef, 'no warnings from compiling index($foo, undef_constant)';
+}
+is u, undef, 'undef constant is still undef';
+
+is index('the main road', __PACKAGE__), 4,
+ '[perl #119169] __PACKAGE__ as 2nd argument';
+
+} # end of sub run_tests
https://perl5.git.perl.org / perl5.git / blobdiff