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Add the fc keyword in regen/feature.pl
[perl5.git] / t / op / lc.t
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1#!./perl
2
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3BEGIN {
4 chdir 't';
5 @INC = '../lib';
6 require './test.pl';
983ffd37 7}
b0f2b690 8
aa4af542 9plan tests => 93;
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10
11is(lc(undef), "", "lc(undef) is ''");
12is(lcfirst(undef), "", "lcfirst(undef) is ''");
13is(uc(undef), "", "uc(undef) is ''");
14is(ucfirst(undef), "", "ucfirst(undef) is ''");
3a2263fe 15
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16$a = "HELLO.* world";
17$b = "hello.* WORLD";
18
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19is("\Q$a\E." , "HELLO\\.\\*\\ world.", '\Q\E HELLO.* world');
20is("\u$a" , "HELLO\.\* world", '\u');
21is("\l$a" , "hELLO\.\* world", '\l');
22is("\U$a" , "HELLO\.\* WORLD", '\U');
23is("\L$a" , "hello\.\* world", '\L');
24
25is(quotemeta($a) , "HELLO\\.\\*\\ world", 'quotemeta');
26is(ucfirst($a) , "HELLO\.\* world", 'ucfirst');
27is(lcfirst($a) , "hELLO\.\* world", 'lcfirst');
28is(uc($a) , "HELLO\.\* WORLD", 'uc');
29is(lc($a) , "hello\.\* world", 'lc');
30
31is("\Q$b\E." , "hello\\.\\*\\ WORLD.", '\Q\E hello.* WORLD');
32is("\u$b" , "Hello\.\* WORLD", '\u');
33is("\l$b" , "hello\.\* WORLD", '\l');
34is("\U$b" , "HELLO\.\* WORLD", '\U');
35is("\L$b" , "hello\.\* world", '\L');
36
37is(quotemeta($b) , "hello\\.\\*\\ WORLD", 'quotemeta');
38is(ucfirst($b) , "Hello\.\* WORLD", 'ucfirst');
39is(lcfirst($b) , "hello\.\* WORLD", 'lcfirst');
40is(uc($b) , "HELLO\.\* WORLD", 'uc');
41is(lc($b) , "hello\.\* world", 'lc');
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42
43# \x{100} is LATIN CAPITAL LETTER A WITH MACRON; its bijective lowercase is
7e965bc5 44# \x{101}, LATIN SMALL LETTER A WITH MACRON.
b0f2b690 45
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46$a = "\x{100}\x{101}Aa";
47$b = "\x{101}\x{100}aA";
b0f2b690 48
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49is("\Q$a\E." , "\x{100}\x{101}Aa.", '\Q\E \x{100}\x{101}Aa');
50is("\u$a" , "\x{100}\x{101}Aa", '\u');
51is("\l$a" , "\x{101}\x{101}Aa", '\l');
52is("\U$a" , "\x{100}\x{100}AA", '\U');
53is("\L$a" , "\x{101}\x{101}aa", '\L');
54
55is(quotemeta($a) , "\x{100}\x{101}Aa", 'quotemeta');
56is(ucfirst($a) , "\x{100}\x{101}Aa", 'ucfirst');
57is(lcfirst($a) , "\x{101}\x{101}Aa", 'lcfirst');
58is(uc($a) , "\x{100}\x{100}AA", 'uc');
59is(lc($a) , "\x{101}\x{101}aa", 'lc');
60
61is("\Q$b\E." , "\x{101}\x{100}aA.", '\Q\E \x{101}\x{100}aA');
62is("\u$b" , "\x{100}\x{100}aA", '\u');
63is("\l$b" , "\x{101}\x{100}aA", '\l');
64is("\U$b" , "\x{100}\x{100}AA", '\U');
65is("\L$b" , "\x{101}\x{101}aa", '\L');
66
67is(quotemeta($b) , "\x{101}\x{100}aA", 'quotemeta');
68is(ucfirst($b) , "\x{100}\x{100}aA", 'ucfirst');
69is(lcfirst($b) , "\x{101}\x{100}aA", 'lcfirst');
70is(uc($b) , "\x{100}\x{100}AA", 'uc');
71is(lc($b) , "\x{101}\x{101}aa", 'lc');
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72
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.
76
8a38a836 77is(latin1_to_native("\U\x{DF}aB\x{149}cD"), latin1_to_native("SSAB\x{2BC}NCD"),
c811e616 78 "multicharacter uppercase");
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79
80# The \x{DF} is its own lowercase, ditto for \x{149}.
81# There are no single character -> multiple characters lowercase mappings.
b0f2b690 82
8a38a836 83is(latin1_to_native("\L\x{DF}aB\x{149}cD"), latin1_to_native("\x{DF}ab\x{149}cd"),
c811e616 84 "multicharacter lowercase");
b0f2b690 85
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86# titlecase is used for \u / ucfirst.
87
88# \x{587} is ARMENIAN SMALL LIGATURE ECH YIWN and its titlecase is
89# \x{535}\x{582} ARMENIAN CAPITAL LETTER ECH + ARMENIAN SMALL LETTER YIWN
90# while its lowercase is
91# \x{587} itself
92# and its uppercase is
93# \x{535}\x{552} ARMENIAN CAPITAL LETTER ECH + ARMENIAN CAPITAL LETTER YIWN
94
95$a = "\x{587}";
96
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97is("\L\x{587}" , "\x{587}", "ligature lowercase");
98is("\u\x{587}" , "\x{535}\x{582}", "ligature titlecase");
99is("\U\x{587}" , "\x{535}\x{552}", "ligature uppercase");
44bc797b 100
2e3dedfe 101# mktables had problems where many-to-one case mappings didn't work right.
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102# The lib/uni/fold.t should give the fourth folding, "casefolding", a good
103# workout (one cannot directly get that from Perl).
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104# \x{01C4} is LATIN CAPITAL LETTER DZ WITH CARON
105# \x{01C5} is LATIN CAPITAL LETTER D WITH SMALL LETTER Z WITH CARON
106# \x{01C6} is LATIN SMALL LETTER DZ WITH CARON
107# \x{03A3} is GREEK CAPITAL LETTER SIGMA
108# \x{03C2} is GREEK SMALL LETTER FINAL SIGMA
109# \x{03C3} is GREEK SMALL LETTER SIGMA
2e3dedfe 110
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111is(lc("\x{1C4}") , "\x{1C6}", "U+01C4 lc is U+01C6");
112is(lc("\x{1C5}") , "\x{1C6}", "U+01C5 lc is U+01C6, too");
2e3dedfe 113
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114is(ucfirst("\x{3C2}") , "\x{3A3}", "U+03C2 ucfirst is U+03A3");
115is(ucfirst("\x{3C3}") , "\x{3A3}", "U+03C3 ucfirst is U+03A3, too");
2e3dedfe 116
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117is(uc("\x{1C5}") , "\x{1C4}", "U+01C5 uc is U+01C4");
118is(uc("\x{1C6}") , "\x{1C4}", "U+01C6 uc is U+01C4, too");
2e3dedfe 119
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120# #18107: A host of bugs involving [ul]c{,first}. AMS 20021106
121$a = "\x{3c3}foo.bar"; # \x{3c3} == GREEK SMALL LETTER SIGMA.
122$b = "\x{3a3}FOO.BAR"; # \x{3a3} == GREEK CAPITAL LETTER SIGMA.
123
124($c = $b) =~ s/(\w+)/lc($1)/ge;
3a2263fe 125is($c , $a, "Using s///e to change case.");
ada6e8a9 126
d1eb3177 127($c = $a) =~ s/(\p{IsWord}+)/uc($1)/ge;
3a2263fe 128is($c , $b, "Using s///e to change case.");
ada6e8a9 129
d1eb3177 130($c = $b) =~ s/(\p{IsWord}+)/lcfirst($1)/ge;
3a2263fe 131is($c , "\x{3c3}FOO.bAR", "Using s///e to change case.");
ada6e8a9 132
d1eb3177 133($c = $a) =~ s/(\p{IsWord}+)/ucfirst($1)/ge;
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134is($c , "\x{3a3}foo.Bar", "Using s///e to change case.");
135
136# #18931: perl5.8.0 bug in \U..\E processing
04d26ece 137# Test case from Nicholas Clark.
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138for my $a (0,1) {
139 $_ = 'abcdefgh';
140 $_ .= chr 256;
141 chop;
142 /(.*)/;
143 is(uc($1), "ABCDEFGH", "[perl #18931]");
144}
145
146{
147 foreach (0, 1) {
148 $a = v10.v257;
149 chop $a;
150 $a =~ s/^(\s*)(\w*)/$1\u$2/;
151 is($a, v10, "[perl #18857]");
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152 }
153}
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154
155
156# [perl #38619] Bug in lc and uc (interaction between UTF-8, substr, and lc/uc)
157
158for ("a\x{100}", "xyz\x{100}") {
159 is(substr(uc($_), 0), uc($_), "[perl #38619] uc");
160}
161for ("A\x{100}", "XYZ\x{100}") {
162 is(substr(lc($_), 0), lc($_), "[perl #38619] lc");
163}
164for ("a\x{100}", "ßyz\x{100}") { # ß to Ss (different length)
165 is(substr(ucfirst($_), 0), ucfirst($_), "[perl #38619] ucfirst");
166}
167
168# Related to [perl #38619]
169# the original report concerns PERL_MAGIC_utf8.
170# these cases concern PERL_MAGIC_regex_global.
171
172for (map { $_ } "a\x{100}", "abc\x{100}", "\x{100}") {
173 chop; # get ("a", "abc", "") in utf8
174 my $return = uc($_) =~ /\G(.?)/g;
175 my $result = $return ? $1 : "not";
176 my $expect = (uc($_) =~ /(.?)/g)[0];
177 is($return, 1, "[perl #38619]");
178 is($result, $expect, "[perl #38619]");
179}
180
181for (map { $_ } "A\x{100}", "ABC\x{100}", "\x{100}") {
182 chop; # get ("A", "ABC", "") in utf8
183 my $return = lc($_) =~ /\G(.?)/g;
184 my $result = $return ? $1 : "not";
185 my $expect = (lc($_) =~ /(.?)/g)[0];
186 is($return, 1, "[perl #38619]");
187 is($result, $expect, "[perl #38619]");
188}
189
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190for (1, 4, 9, 16, 25) {
191 is(uc "\x{03B0}" x $_, "\x{3a5}\x{308}\x{301}" x $_,
192 'uc U+03B0 grows threefold');
193
194 is(lc "\x{0130}" x $_, "i\x{307}" x $_, 'lc U+0130 grows');
195}
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196
197# bug #43207
198my $temp = "Hello";
199for ("$temp") {
200 lc $_;
201 is($_, "Hello");
202}
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203
204# new in Unicode 5.1.0
205is(lc("\x{1E9E}"), "\x{df}", "lc(LATIN CAPITAL LETTER SHARP S)");