12 my $foo = 'Now is the time for all good men to come to the aid of their country.';
14 my $first = substr($foo,0,index($foo,'the'));
15 is($first, "Now is ");
17 my $last = substr($foo,rindex($foo,'the'),100);
18 is($last, "their country.");
20 $last = substr($foo,index($foo,'Now'),2);
23 $last = substr($foo,rindex($foo,'Now'),2);
26 $last = substr($foo,index($foo,'.'),100);
29 $last = substr($foo,rindex($foo,'.'),100);
32 is(index("ababa","a",-1), 0);
33 is(index("ababa","a",0), 0);
34 is(index("ababa","a",1), 2);
35 is(index("ababa","a",2), 2);
36 is(index("ababa","a",3), 4);
37 is(index("ababa","a",4), 4);
38 is(index("ababa","a",5), -1);
40 is(rindex("ababa","a",-1), -1);
41 is(rindex("ababa","a",0), 0);
42 is(rindex("ababa","a",1), 0);
43 is(rindex("ababa","a",2), 2);
44 is(rindex("ababa","a",3), 2);
45 is(rindex("ababa","a",4), 4);
46 is(rindex("ababa","a",5), 4);
48 # tests for empty search string
49 is(index("abc", "", -1), 0);
50 is(index("abc", "", 0), 0);
51 is(index("abc", "", 1), 1);
52 is(index("abc", "", 2), 2);
53 is(index("abc", "", 3), 3);
54 is(index("abc", "", 4), 3);
55 is(rindex("abc", "", -1), 0);
56 is(rindex("abc", "", 0), 0);
57 is(rindex("abc", "", 1), 1);
58 is(rindex("abc", "", 2), 2);
59 is(rindex("abc", "", 3), 3);
60 is(rindex("abc", "", 4), 3);
62 $a = "foo \x{1234}bar";
64 is(index($a, "\x{1234}"), 4);
65 is(index($a, "bar", ), 5);
67 is(rindex($a, "\x{1234}"), 4);
68 is(rindex($a, "foo", ), 0);
71 my $needle = "\x{1230}\x{1270}";
72 my @needles = split ( //, $needle );
73 my $haystack = "\x{1228}\x{1228}\x{1230}\x{1270}";
74 foreach ( @needles ) {
75 my $a = index ( "\x{1228}\x{1228}\x{1230}\x{1270}", $_ );
76 my $b = index ( $haystack, $_ );
77 is($a, $b, q{[perl #22375] 'split'/'index' problem for utf8});
79 $needle = "\x{1270}\x{1230}"; # Transpose them.
80 @needles = split ( //, $needle );
81 foreach ( @needles ) {
82 my $a = index ( "\x{1228}\x{1228}\x{1230}\x{1270}", $_ );
83 my $b = index ( $haystack, $_ );
84 is($a, $b, q{[perl #22375] 'split'/'index' problem for utf8});
89 my $search = "foo \xc9 bar";
90 my $text = "a\xa3\xa3a $search $search quux";
92 my $text_utf8 = $text;
93 utf8::upgrade($text_utf8);
94 my $search_utf8 = $search;
95 utf8::upgrade($search_utf8);
97 is (index($text, $search), 5);
98 is (rindex($text, $search), 18);
99 is (index($text, $search_utf8), 5);
100 is (rindex($text, $search_utf8), 18);
101 is (index($text_utf8, $search), 5);
102 is (rindex($text_utf8, $search), 18);
103 is (index($text_utf8, $search_utf8), 5);
104 is (rindex($text_utf8, $search_utf8), 18);
106 my $text_octets = $text_utf8;
107 utf8::encode ($text_octets);
108 my $search_octets = $search_utf8;
109 utf8::encode ($search_octets);
111 is (index($text_octets, $search_octets), 7, "index octets, octets")
112 or _diag ($text_octets, $search_octets);
113 is (rindex($text_octets, $search_octets), 21, "rindex octets, octets");
114 is (index($text_octets, $search_utf8), -1);
115 is (rindex($text_octets, $search_utf8), -1);
116 is (index($text_utf8, $search_octets), -1);
117 is (rindex($text_utf8, $search_octets), -1);
119 is (index($text_octets, $search), -1);
120 is (rindex($text_octets, $search), -1);
121 is (index($text, $search_octets), -1);
122 is (rindex($text, $search_octets), -1);