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});
91 if (ord('A') == 193) {
92 $search = "foo \x71 bar";
93 $text = "a\xb1\xb1a $search $search quux";
95 $search = "foo \xc9 bar";
96 $text = "a\xa3\xa3a $search $search quux";
99 my $text_utf8 = $text;
100 utf8::upgrade($text_utf8);
101 my $search_utf8 = $search;
102 utf8::upgrade($search_utf8);
104 is (index($text, $search), 5);
105 is (rindex($text, $search), 18);
106 is (index($text, $search_utf8), 5);
107 is (rindex($text, $search_utf8), 18);
108 is (index($text_utf8, $search), 5);
109 is (rindex($text_utf8, $search), 18);
110 is (index($text_utf8, $search_utf8), 5);
111 is (rindex($text_utf8, $search_utf8), 18);
113 my $text_octets = $text_utf8;
114 utf8::encode ($text_octets);
115 my $search_octets = $search_utf8;
116 utf8::encode ($search_octets);
118 is (index($text_octets, $search_octets), 7, "index octets, octets")
119 or _diag ($text_octets, $search_octets);
120 is (rindex($text_octets, $search_octets), 21, "rindex octets, octets");
121 is (index($text_octets, $search_utf8), -1);
122 is (rindex($text_octets, $search_utf8), -1);
123 is (index($text_utf8, $search_octets), -1);
124 is (rindex($text_utf8, $search_octets), -1);
126 is (index($text_octets, $search), -1);
127 is (rindex($text_octets, $search), -1);
128 is (index($text, $search_octets), -1);
129 is (rindex($text, $search_octets), -1);
132 foreach my $utf8 ('', ', utf-8') {
133 foreach my $arraybase (0, 1, -1, -2) {
134 my $expect_pos = 2 + $arraybase;
136 my $prog = "\$[ = $arraybase; \$big = \"N\\xabN\\xab\"; ";
137 $prog .= '$big .= chr 256; chop $big; ' if $utf8;
138 $prog .= 'print rindex $big, "N", 2 + $[';
140 fresh_perl_is($prog, $expect_pos, {}, "\$[ = $arraybase$utf8");
145 skip "UTF-EBCDIC is limited to 0x7fffffff", 3 if ord("A") == 193;
147 my $a = "\x{80000000}";
149 is(index($s, 'def'), 1, "0x80000000 is a single character");
151 my $b = "\x{fffffffd}";
153 is(index($t, 'pqr'), 1, "0xfffffffd is a single character");
155 local ${^UTF8CACHE} = -1;
156 is(index($t, 'xyz'), 4, "0xfffffffd and utf8cache");