11 is(lc(undef), "", "lc(undef) is ''");
12 is(lcfirst(undef), "", "lcfirst(undef) is ''");
13 is(uc(undef), "", "uc(undef) is ''");
14 is(ucfirst(undef), "", "ucfirst(undef) is ''");
19 is("\Q$a\E." , "HELLO\\.\\*\\ world.", '\Q\E HELLO.* world');
20 is("\u$a" , "HELLO\.\* world", '\u');
21 is("\l$a" , "hELLO\.\* world", '\l');
22 is("\U$a" , "HELLO\.\* WORLD", '\U');
23 is("\L$a" , "hello\.\* world", '\L');
25 is(quotemeta($a) , "HELLO\\.\\*\\ world", 'quotemeta');
26 is(ucfirst($a) , "HELLO\.\* world", 'ucfirst');
27 is(lcfirst($a) , "hELLO\.\* world", 'lcfirst');
28 is(uc($a) , "HELLO\.\* WORLD", 'uc');
29 is(lc($a) , "hello\.\* world", 'lc');
31 is("\Q$b\E." , "hello\\.\\*\\ WORLD.", '\Q\E hello.* WORLD');
32 is("\u$b" , "Hello\.\* WORLD", '\u');
33 is("\l$b" , "hello\.\* WORLD", '\l');
34 is("\U$b" , "HELLO\.\* WORLD", '\U');
35 is("\L$b" , "hello\.\* world", '\L');
37 is(quotemeta($b) , "hello\\.\\*\\ WORLD", 'quotemeta');
38 is(ucfirst($b) , "Hello\.\* WORLD", 'ucfirst');
39 is(lcfirst($b) , "hello\.\* WORLD", 'lcfirst');
40 is(uc($b) , "HELLO\.\* WORLD", 'uc');
41 is(lc($b) , "hello\.\* world", 'lc');
43 # \x{100} is LATIN CAPITAL LETTER A WITH MACRON; its bijective lowercase is
44 # \x{101}, LATIN SMALL LETTER A WITH MACRON.
46 $a = "\x{100}\x{101}Aa";
47 $b = "\x{101}\x{100}aA";
49 is("\Q$a\E." , "\x{100}\x{101}Aa.", '\Q\E \x{100}\x{101}Aa');
50 is("\u$a" , "\x{100}\x{101}Aa", '\u');
51 is("\l$a" , "\x{101}\x{101}Aa", '\l');
52 is("\U$a" , "\x{100}\x{100}AA", '\U');
53 is("\L$a" , "\x{101}\x{101}aa", '\L');
55 is(quotemeta($a) , "\x{100}\x{101}Aa", 'quotemeta');
56 is(ucfirst($a) , "\x{100}\x{101}Aa", 'ucfirst');
57 is(lcfirst($a) , "\x{101}\x{101}Aa", 'lcfirst');
58 is(uc($a) , "\x{100}\x{100}AA", 'uc');
59 is(lc($a) , "\x{101}\x{101}aa", 'lc');
61 is("\Q$b\E." , "\x{101}\x{100}aA.", '\Q\E \x{101}\x{100}aA');
62 is("\u$b" , "\x{100}\x{100}aA", '\u');
63 is("\l$b" , "\x{101}\x{100}aA", '\l');
64 is("\U$b" , "\x{100}\x{100}AA", '\U');
65 is("\L$b" , "\x{101}\x{101}aa", '\L');
67 is(quotemeta($b) , "\x{101}\x{100}aA", 'quotemeta');
68 is(ucfirst($b) , "\x{100}\x{100}aA", 'ucfirst');
69 is(lcfirst($b) , "\x{101}\x{100}aA", 'lcfirst');
70 is(uc($b) , "\x{100}\x{100}AA", 'uc');
71 is(lc($b) , "\x{101}\x{101}aa", 'lc');
73 # \x{DF} is LATIN SMALL LETTER SHARP S, its uppercase is SS or \x{53}\x{53};
74 # \x{149} is LATIN SMALL LETTER N PRECEDED BY APOSTROPHE, its uppercase is
75 # \x{2BC}\x{E4} or MODIFIER LETTER APOSTROPHE and N.
77 # In EBCDIC \x{DF} is LATIN SMALL LETTER Y WITH DIAERESIS,
78 # and it's uppercase is \x{178}, LATIN CAPITAL LETTER Y WITH DIAERESIS.
80 if (ord("A") == 193) { # EBCDIC
81 is("\U\x{DF}aB\x{149}cD" , "\x{178}AB\x{2BC}NCD",
82 "multicharacter uppercase");
83 } elsif (ord("A") == 65) {
84 is("\U\x{DF}aB\x{149}cD" , "SSAB\x{2BC}NCD",
85 "multicharacter uppercase");
87 fail("what is your encoding?");
90 # The \x{DF} is its own lowercase, ditto for \x{149}.
91 # There are no single character -> multiple characters lowercase mappings.
93 if (ord("A") == 193) { # EBCDIC
94 is("\LaB\x{149}cD" , "ab\x{149}cd",
95 "multicharacter lowercase");
96 } elsif (ord("A") == 65) {
97 is("\L\x{DF}aB\x{149}cD" , "\x{DF}ab\x{149}cd",
98 "multicharacter lowercase");
100 fail("what is your encoding?");
103 # titlecase is used for \u / ucfirst.
105 # \x{587} is ARMENIAN SMALL LIGATURE ECH YIWN and its titlecase is
106 # \x{535}\x{582} ARMENIAN CAPITAL LETTER ECH + ARMENIAN SMALL LETTER YIWN
107 # while its lowercase is
109 # and its uppercase is
110 # \x{535}\x{552} ARMENIAN CAPITAL LETTER ECH + ARMENIAN CAPITAL LETTER YIWN
114 is("\L\x{587}" , "\x{587}", "ligature lowercase");
115 is("\u\x{587}" , "\x{535}\x{582}", "ligature titlecase");
116 is("\U\x{587}" , "\x{535}\x{552}", "ligature uppercase");
118 # mktables had problems where many-to-one case mappings didn't work right.
119 # The lib/uni/fold.t should give the fourth folding, "casefolding", a good
120 # workout (one cannot directly get that from Perl).
121 # \x{01C4} is LATIN CAPITAL LETTER DZ WITH CARON
122 # \x{01C5} is LATIN CAPITAL LETTER D WITH SMALL LETTER Z WITH CARON
123 # \x{01C6} is LATIN SMALL LETTER DZ WITH CARON
124 # \x{03A3} is GREEK CAPITAL LETTER SIGMA
125 # \x{03C2} is GREEK SMALL LETTER FINAL SIGMA
126 # \x{03C3} is GREEK SMALL LETTER SIGMA
128 is(lc("\x{1C4}") , "\x{1C6}", "U+01C4 lc is U+01C6");
129 is(lc("\x{1C5}") , "\x{1C6}", "U+01C5 lc is U+01C6, too");
131 is(ucfirst("\x{3C2}") , "\x{3A3}", "U+03C2 ucfirst is U+03A3");
132 is(ucfirst("\x{3C3}") , "\x{3A3}", "U+03C3 ucfirst is U+03A3, too");
134 is(uc("\x{1C5}") , "\x{1C4}", "U+01C5 uc is U+01C4");
135 is(uc("\x{1C6}") , "\x{1C4}", "U+01C6 uc is U+01C4, too");
137 # #18107: A host of bugs involving [ul]c{,first}. AMS 20021106
138 $a = "\x{3c3}foo.bar"; # \x{3c3} == GREEK SMALL LETTER SIGMA.
139 $b = "\x{3a3}FOO.BAR"; # \x{3a3} == GREEK CAPITAL LETTER SIGMA.
141 ($c = $b) =~ s/(\w+)/lc($1)/ge;
142 is($c , $a, "Using s///e to change case.");
144 ($c = $a) =~ s/(\w+)/uc($1)/ge;
145 is($c , $b, "Using s///e to change case.");
147 ($c = $b) =~ s/(\w+)/lcfirst($1)/ge;
148 is($c , "\x{3c3}FOO.bAR", "Using s///e to change case.");
150 ($c = $a) =~ s/(\w+)/ucfirst($1)/ge;
151 is($c , "\x{3a3}foo.Bar", "Using s///e to change case.");
153 # #18931: perl5.8.0 bug in \U..\E processing
154 # Test case from Nicholas Clark.
160 is(uc($1), "ABCDEFGH", "[perl #18931]");
167 $a =~ s/^(\s*)(\w*)/$1\u$2/;
168 is($a, v10, "[perl #18857]");
173 # [perl #38619] Bug in lc and uc (interaction between UTF-8, substr, and lc/uc)
175 for ("a\x{100}", "xyz\x{100}") {
176 is(substr(uc($_), 0), uc($_), "[perl #38619] uc");
178 for ("A\x{100}", "XYZ\x{100}") {
179 is(substr(lc($_), 0), lc($_), "[perl #38619] lc");
181 for ("a\x{100}", "ßyz\x{100}") { # ß to Ss (different length)
182 is(substr(ucfirst($_), 0), ucfirst($_), "[perl #38619] ucfirst");
185 # Related to [perl #38619]
186 # the original report concerns PERL_MAGIC_utf8.
187 # these cases concern PERL_MAGIC_regex_global.
189 for (map { $_ } "a\x{100}", "abc\x{100}", "\x{100}") {
190 chop; # get ("a", "abc", "") in utf8
191 my $return = uc($_) =~ /\G(.?)/g;
192 my $result = $return ? $1 : "not";
193 my $expect = (uc($_) =~ /(.?)/g)[0];
194 is($return, 1, "[perl #38619]");
195 is($result, $expect, "[perl #38619]");
198 for (map { $_ } "A\x{100}", "ABC\x{100}", "\x{100}") {
199 chop; # get ("A", "ABC", "") in utf8
200 my $return = lc($_) =~ /\G(.?)/g;
201 my $result = $return ? $1 : "not";
202 my $expect = (lc($_) =~ /(.?)/g)[0];
203 is($return, 1, "[perl #38619]");
204 is($result, $expect, "[perl #38619]");
207 for (1, 4, 9, 16, 25) {
208 is(uc "\x{03B0}" x $_, "\x{3a5}\x{308}\x{301}" x $_,
209 'uc U+03B0 grows threefold');
211 is(lc "\x{0130}" x $_, "i\x{307}" x $_, 'lc U+0130 grows');
221 # new in Unicode 5.1.0
222 is(lc("\x{1E9E}"), "\x{df}", "lc(LATIN CAPITAL LETTER SHARP S)");