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t/re/pat_advanced.t: Remove a 'use encoding'
[perl5.git] / t / re / pat_advanced.t
CommitLineData
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1#!./perl
2#
c5de0829 3# This is a home for regular expression tests that do not fit into
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4# the format supported by re/regexp.t. If you want to add a test
5# that does fit that format, add it to re/re_tests, not here.
6
7use strict;
8use warnings;
9use 5.010;
10
11
12sub run_tests;
13
14$| = 1;
15
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16
17BEGIN {
18 chdir 't' if -d 't';
9d45b377 19 @INC = ('../lib','.');
173ee337 20 require './test.pl'; require './charset_tools.pl';
2fcf74c4 21 skip_all_if_miniperl("miniperl can't load Tie::Hash::NamedCapture, need for %+ and %-");
e425a60b 22}
e425a60b 23
9d45b377 24run_tests() unless caller;
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25
26#
27# Tests start here.
28#
29sub run_tests {
30
e425a60b 31 {
de946258 32 my $message = '\C matches octet';
e425a60b 33 $_ = "a\x{100}b";
de946258
NC
34 ok(/(.)(\C)(\C)(.)/, $message);
35 is($1, "a", $message);
ef237063 36 if ($::IS_ASCII) { # ASCII (or equivalent), should be UTF-8
de946258
NC
37 is($2, "\xC4", $message);
38 is($3, "\x80", $message);
e425a60b 39 }
ef237063 40 elsif ($::IS_EBCDIC) { # EBCDIC (or equivalent), should be UTF-EBCDIC
de946258
NC
41 is($2, "\x8C", $message);
42 is($3, "\x41", $message);
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43 }
44 else {
45 SKIP: {
c1741bad 46 ok 0, "Unexpected platform", "ord ('A') =" . ord 'A';
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47 skip "Unexpected platform";
48 }
49 }
de946258 50 is($4, "b", $message);
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51 }
52
e425a60b 53 {
de946258 54 my $message = '\C matches octet';
e425a60b 55 $_ = "\x{100}";
de946258 56 ok(/(\C)/g, $message);
ef237063 57 if ($::IS_ASCII) {
de946258 58 is($1, "\xC4", $message);
e425a60b 59 }
ef237063 60 elsif ($::IS_EBCDIC) {
de946258 61 is($1, "\x8C", $message);
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62 }
63 else {
c1741bad 64 ok 0, "Unexpected platform", "ord ('A') = " . ord 'A';
e425a60b 65 }
de946258 66 ok(/(\C)/g, $message);
ef237063 67 if ($::IS_ASCII) {
de946258 68 is($1, "\x80", $message);
e425a60b 69 }
ef237063 70 elsif ($::IS_EBCDIC) {
de946258 71 is($1, "\x41", $message);
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72 }
73 else {
c1741bad 74 ok 0, "Unexpected platform", "ord ('A') = " . ord 'A';
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75 }
76 }
77
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78 {
79 # Japhy -- added 03/03/2001
80 () = (my $str = "abc") =~ /(...)/;
81 $str = "def";
de26e0cc 82 is($1, "abc", 'Changing subject does not modify $1');
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83 }
84
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85 SKIP:
86 {
87 # The trick is that in EBCDIC the explicit numeric range should
88 # match (as also in non-EBCDIC) but the explicit alphabetic range
89 # should not match.
90 ok "\x8e" =~ /[\x89-\x91]/, '"\x8e" =~ /[\x89-\x91]/';
91 ok "\xce" =~ /[\xc9-\xd1]/, '"\xce" =~ /[\xc9-\xd1]/';
2ca8589c 92 ok "\xd0" =~ /[\xc9-\xd1]/, '"\xd0" =~ /[\xc9-\xd1]/';
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93
94 skip "Not an EBCDIC platform", 2 unless ord ('i') == 0x89 &&
95 ord ('J') == 0xd1;
96
97 # In most places these tests would succeed since \x8e does not
98 # in most character sets match 'i' or 'j' nor would \xce match
99 # 'I' or 'J', but strictly speaking these tests are here for
100 # the good of EBCDIC, so let's test these only there.
b33825c4
NC
101 unlike("\x8e", qr/[i-j]/, '"\x8e" !~ /[i-j]/');
102 unlike("\xce", qr/[I-J]/, '"\xce" !~ /[I-J]/');
2ca8589c 103 unlike("\xd0", qr/[I-J]/, '"\xd0" !~ /[I-J]/');
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104 }
105
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106 {
107 ok "\x{ab}" =~ /\x{ab}/, '"\x{ab}" =~ /\x{ab}/ ';
108 ok "\x{abcd}" =~ /\x{abcd}/, '"\x{abcd}" =~ /\x{abcd}/';
109 }
110
e425a60b 111 {
de946258 112 my $message = 'bug id 20001008.001';
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113
114 my @x = ("stra\337e 138", "stra\337e 138");
115 for (@x) {
de946258
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116 ok(s/(\d+)\s*([\w\-]+)/$1 . uc $2/e, $message);
117 ok(my ($latin) = /^(.+)(?:\s+\d)/, $message);
118 is($latin, "stra\337e", $message);
119 ok($latin =~ s/stra\337e/straße/, $message);
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120 #
121 # Previous code follows, but outcommented - there were no tests.
122 #
123 # $latin =~ s/stra\337e/straße/; # \303\237 after the 2nd a
124 # use utf8; # needed for the raw UTF-8
125 # $latin =~ s!(s)tr(?:aß|s+e)!$1tr.!; # \303\237 after the a
126 }
127 }
128
e425a60b 129 {
de946258
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130 my $message = 'Test \x escapes';
131 ok("ba\xd4c" =~ /([a\xd4]+)/ && $1 eq "a\xd4", $message);
132 ok("ba\xd4c" =~ /([a\xd4]+)/ && $1 eq "a\x{d4}", $message);
133 ok("ba\x{d4}c" =~ /([a\xd4]+)/ && $1 eq "a\x{d4}", $message);
134 ok("ba\x{d4}c" =~ /([a\xd4]+)/ && $1 eq "a\xd4", $message);
135 ok("ba\xd4c" =~ /([a\x{d4}]+)/ && $1 eq "a\xd4", $message);
136 ok("ba\xd4c" =~ /([a\x{d4}]+)/ && $1 eq "a\x{d4}", $message);
137 ok("ba\x{d4}c" =~ /([a\x{d4}]+)/ && $1 eq "a\x{d4}", $message);
138 ok("ba\x{d4}c" =~ /([a\x{d4}]+)/ && $1 eq "a\xd4", $message);
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139 }
140
e425a60b 141 {
de946258 142 my $message = 'Match code points > 255';
e425a60b 143 $_ = "abc\x{100}\x{200}\x{300}\x{380}\x{400}defg";
de946258
NC
144 ok(/(.\x{300})./, $message);
145 ok($` eq "abc\x{100}" && length ($`) == 4, $message);
146 ok($& eq "\x{200}\x{300}\x{380}" && length ($&) == 3, $message);
147 ok($' eq "\x{400}defg" && length ($') == 5, $message);
148 ok($1 eq "\x{200}\x{300}" && length ($1) == 2, $message);
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149 }
150
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151 {
152 my $x = "\x{10FFFD}";
153 $x =~ s/(.)/$1/g;
154 ok ord($x) == 0x10FFFD && length($x) == 1, "From Robin Houston";
155 }
156
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157 {
158 my %d = (
159 "7f" => [0, 0, 0],
160 "80" => [1, 1, 0],
161 "ff" => [1, 1, 0],
162 "100" => [0, 1, 1],
163 );
a2d248f9 164
e425a60b 165 while (my ($code, $match) = each %d) {
de946258 166 my $message = "Properties of \\x$code";
e425a60b 167 my $char = eval qq ["\\x{$code}"];
a2d248f9 168
de946258
NC
169 is(0 + ($char =~ /[\x80-\xff]/), $$match[0], $message);
170 is(0 + ($char =~ /[\x80-\x{100}]/), $$match[1], $message);
171 is(0 + ($char =~ /[\x{100}]/), $$match[2], $message);
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172 }
173 }
174
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175 {
176 # From Japhy
e4e5d8ba 177 foreach (qw(c g o)) {
4d18b353
NC
178 warning_like(sub {'' =~ "(?$_)"}, qr/^Useless \(\?$_\)/);
179 warning_like(sub {'' =~ "(?-$_)"}, qr/^Useless \(\?-$_\)/);
e4e5d8ba 180 }
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181
182 # Now test multi-error regexes
f4554ed5
NC
183 foreach (['(?g-o)', qr/^Useless \(\?g\)/, qr/^Useless \(\?-o\)/],
184 ['(?g-c)', qr/^Useless \(\?g\)/, qr/^Useless \(\?-c\)/],
185 # (?c) means (?g) error won't be thrown
186 ['(?o-cg)', qr/^Useless \(\?o\)/, qr/^Useless \(\?-c\)/],
187 ['(?ogc)', qr/^Useless \(\?o\)/, qr/^Useless \(\?g\)/,
188 qr/^Useless \(\?c\)/],
189 ) {
190 my ($re, @warnings) = @$_;
191 warnings_like(sub {eval "qr/$re/"}, \@warnings, "qr/$re/ warns");
192 }
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193 }
194
e425a60b 195 {
de946258 196 my $message = "/x tests";
e425a60b 197 $_ = "foo";
14358a41 198 foreach my $pat (<<" --", <<" --") {
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199 /f
200 o\r
201 o
202 \$
203 /x
204 --
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205 /f
206 o
207 o
208 \$\r
209 /x
210 --
14358a41
NC
211 is(eval $pat, 1, $message);
212 is($@, '', $message);
213 }
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214 }
215
e425a60b 216 {
de946258 217 my $message = "/o feature";
e425a60b 218 sub test_o {$_ [0] =~ /$_[1]/o; return $1}
de946258
NC
219 is(test_o ('abc', '(.)..'), 'a', $message);
220 is(test_o ('abc', '..(.)'), 'a', $message);
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221 }
222
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223 {
224 # Test basic $^N usage outside of a regex
de946258 225 my $message = '$^N usage outside of a regex';
e425a60b 226 my $x = "abcdef";
de946258
NC
227 ok(($x =~ /cde/ and !defined $^N), $message);
228 ok(($x =~ /(cde)/ and $^N eq "cde"), $message);
229 ok(($x =~ /(c)(d)(e)/ and $^N eq "e"), $message);
230 ok(($x =~ /(c(d)e)/ and $^N eq "cde"), $message);
231 ok(($x =~ /(foo)|(c(d)e)/ and $^N eq "cde"), $message);
232 ok(($x =~ /(c(d)e)|(foo)/ and $^N eq "cde"), $message);
233 ok(($x =~ /(c(d)e)|(abc)/ and $^N eq "abc"), $message);
234 ok(($x =~ /(c(d)e)|(abc)x/ and $^N eq "cde"), $message);
235 ok(($x =~ /(c(d)e)(abc)?/ and $^N eq "cde"), $message);
236 ok(($x =~ /(?:c(d)e)/ and $^N eq "d"), $message);
237 ok(($x =~ /(?:c(d)e)(?:f)/ and $^N eq "d"), $message);
238 ok(($x =~ /(?:([abc])|([def]))*/ and $^N eq "f"), $message);
239 ok(($x =~ /(?:([ace])|([bdf]))*/ and $^N eq "f"), $message);
240 ok(($x =~ /(([ace])|([bd]))*/ and $^N eq "e"), $message);
241 {ok(($x =~ /(([ace])|([bdf]))*/ and $^N eq "f"), $message);}
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242 ## Test to see if $^N is automatically localized -- it should now
243 ## have the value set in the previous test.
de26e0cc 244 is($^N, "e", '$^N is automatically localized');
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245
246 # Now test inside (?{ ... })
de946258 247 $message = '$^N usage inside (?{ ... })';
e425a60b 248 our ($y, $z);
de946258
NC
249 ok(($x =~ /a([abc])(?{$y=$^N})c/ and $y eq "b"), $message);
250 ok(($x =~ /a([abc]+)(?{$y=$^N})d/ and $y eq "bc"), $message);
251 ok(($x =~ /a([abcdefg]+)(?{$y=$^N})d/ and $y eq "bc"), $message);
252 ok(($x =~ /(a([abcdefg]+)(?{$y=$^N})d)(?{$z=$^N})e/ and $y eq "bc"
253 and $z eq "abcd"), $message);
254 ok(($x =~ /(a([abcdefg]+)(?{$y=$^N})de)(?{$z=$^N})/ and $y eq "bc"
255 and $z eq "abcde"), $message);
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256
257 }
258
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259 SKIP:
260 {
261 ## Should probably put in tests for all the POSIX stuff,
262 ## but not sure how to guarantee a specific locale......
263
ef237063 264 skip "Not an ASCII platform", 2 unless $::IS_ASCII;
de946258 265 my $message = 'Test [[:cntrl:]]';
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266 my $AllBytes = join "" => map {chr} 0 .. 255;
267 (my $x = $AllBytes) =~ s/[[:cntrl:]]//g;
de946258 268 is($x, join("", map {chr} 0x20 .. 0x7E, 0x80 .. 0xFF), $message);
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269
270 ($x = $AllBytes) =~ s/[^[:cntrl:]]//g;
de946258 271 is($x, (join "", map {chr} 0x00 .. 0x1F, 0x7F), $message);
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272 }
273
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274 {
275 # With /s modifier UTF8 chars were interpreted as bytes
de946258 276 my $message = "UTF-8 chars aren't bytes";
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277 my $a = "Hello \x{263A} World";
278 my @a = ($a =~ /./gs);
de946258 279 is($#a, 12, $message);
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280 }
281
e425a60b 282 {
de946258 283 my $message = '. matches \n with /s';
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284 my $str1 = "foo\nbar";
285 my $str2 = "foo\n\x{100}bar";
ef237063 286 my ($a, $b) = map {chr} $::IS_ASCII ? (0xc4, 0x80) : (0x8c, 0x41);
e425a60b 287 my @a;
de946258
NC
288 @a = $str1 =~ /./g; is(@a, 6, $message); is("@a", "f o o b a r", $message);
289 @a = $str1 =~ /./gs; is(@a, 7, $message); is("@a", "f o o \n b a r", $message);
290 @a = $str1 =~ /\C/g; is(@a, 7, $message); is("@a", "f o o \n b a r", $message);
291 @a = $str1 =~ /\C/gs; is(@a, 7, $message); is("@a", "f o o \n b a r", $message);
292 @a = $str2 =~ /./g; is(@a, 7, $message); is("@a", "f o o \x{100} b a r", $message);
293 @a = $str2 =~ /./gs; is(@a, 8, $message); is("@a", "f o o \n \x{100} b a r", $message);
294 @a = $str2 =~ /\C/g; is(@a, 9, $message); is("@a", "f o o \n $a $b b a r", $message);
295 @a = $str2 =~ /\C/gs; is(@a, 9, $message); is("@a", "f o o \n $a $b b a r", $message);
e425a60b
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296 }
297
e425a60b 298 {
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299 no warnings 'digit';
300 # Check that \x## works. 5.6.1 and 5.005_03 fail some of these.
301 my $x;
302 $x = "\x4e" . "E";
303 ok ($x =~ /^\x4EE$/, "Check only 2 bytes of hex are matched.");
304
305 $x = "\x4e" . "i";
306 ok ($x =~ /^\x4Ei$/, "Check that invalid hex digit stops it (2)");
307
308 $x = "\x4" . "j";
309 ok ($x =~ /^\x4j$/, "Check that invalid hex digit stops it (1)");
310
311 $x = "\x0" . "k";
312 ok ($x =~ /^\xk$/, "Check that invalid hex digit stops it (0)");
313
314 $x = "\x0" . "x";
315 ok ($x =~ /^\xx$/, "\\xx isn't to be treated as \\0");
316
317 $x = "\x0" . "xa";
318 ok ($x =~ /^\xxa$/, "\\xxa isn't to be treated as \\xa");
319
320 $x = "\x9" . "_b";
321 ok ($x =~ /^\x9_b$/, "\\x9_b isn't to be treated as \\x9b");
322
323 # and now again in [] ranges
324
325 $x = "\x4e" . "E";
326 ok ($x =~ /^[\x4EE]{2}$/, "Check only 2 bytes of hex are matched.");
327
328 $x = "\x4e" . "i";
329 ok ($x =~ /^[\x4Ei]{2}$/, "Check that invalid hex digit stops it (2)");
330
331 $x = "\x4" . "j";
332 ok ($x =~ /^[\x4j]{2}$/, "Check that invalid hex digit stops it (1)");
333
334 $x = "\x0" . "k";
335 ok ($x =~ /^[\xk]{2}$/, "Check that invalid hex digit stops it (0)");
336
337 $x = "\x0" . "x";
338 ok ($x =~ /^[\xx]{2}$/, "\\xx isn't to be treated as \\0");
339
340 $x = "\x0" . "xa";
341 ok ($x =~ /^[\xxa]{3}$/, "\\xxa isn't to be treated as \\xa");
342
343 $x = "\x9" . "_b";
344 ok ($x =~ /^[\x9_b]{3}$/, "\\x9_b isn't to be treated as \\x9b");
345
346 # Check that \x{##} works. 5.6.1 fails quite a few of these.
347
348 $x = "\x9b";
349 ok ($x =~ /^\x{9_b}$/, "\\x{9_b} is to be treated as \\x9b");
350
351 $x = "\x9b" . "y";
352 ok ($x =~ /^\x{9_b}y$/, "\\x{9_b} is to be treated as \\x9b (again)");
353
354 $x = "\x9b" . "y";
355 ok ($x =~ /^\x{9b_}y$/, "\\x{9b_} is to be treated as \\x9b");
356
357 $x = "\x9b" . "y";
358 ok ($x =~ /^\x{9_bq}y$/, "\\x{9_bc} is to be treated as \\x9b");
359
360 $x = "\x0" . "y";
361 ok ($x =~ /^\x{x9b}y$/, "\\x{x9b} is to be treated as \\x0");
362
363 $x = "\x0" . "y";
364 ok ($x =~ /^\x{0x9b}y$/, "\\x{0x9b} is to be treated as \\x0");
365
366 $x = "\x9b" . "y";
367 ok ($x =~ /^\x{09b}y$/, "\\x{09b} is to be treated as \\x9b");
368
369 $x = "\x9b";
370 ok ($x =~ /^[\x{9_b}]$/, "\\x{9_b} is to be treated as \\x9b");
371
372 $x = "\x9b" . "y";
373 ok ($x =~ /^[\x{9_b}y]{2}$/,
374 "\\x{9_b} is to be treated as \\x9b (again)");
375
376 $x = "\x9b" . "y";
377 ok ($x =~ /^[\x{9b_}y]{2}$/, "\\x{9b_} is to be treated as \\x9b");
378
379 $x = "\x9b" . "y";
380 ok ($x =~ /^[\x{9_bq}y]{2}$/, "\\x{9_bc} is to be treated as \\x9b");
381
382 $x = "\x0" . "y";
383 ok ($x =~ /^[\x{x9b}y]{2}$/, "\\x{x9b} is to be treated as \\x0");
384
385 $x = "\x0" . "y";
386 ok ($x =~ /^[\x{0x9b}y]{2}$/, "\\x{0x9b} is to be treated as \\x0");
387
388 $x = "\x9b" . "y";
389 ok ($x =~ /^[\x{09b}y]{2}$/, "\\x{09b} is to be treated as \\x9b");
390
391 }
392
e425a60b
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393 {
394 # High bit bug -- japhy
395 my $x = "ab\200d";
396 ok $x =~ /.*?\200/, "High bit fine";
397 }
398
e425a60b
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399 {
400 # The basic character classes and Unicode
401 ok "\x{0100}" =~ /\w/, 'LATIN CAPITAL LETTER A WITH MACRON in /\w/';
402 ok "\x{0660}" =~ /\d/, 'ARABIC-INDIC DIGIT ZERO in /\d/';
403 ok "\x{1680}" =~ /\s/, 'OGHAM SPACE MARK in /\s/';
404 }
405
e425a60b 406 {
de946258
NC
407 my $message = "Folding matches and Unicode";
408 like("a\x{100}", qr/A/i, $message);
409 like("A\x{100}", qr/a/i, $message);
410 like("a\x{100}", qr/a/i, $message);
411 like("A\x{100}", qr/A/i, $message);
412 like("\x{101}a", qr/\x{100}/i, $message);
413 like("\x{100}a", qr/\x{100}/i, $message);
414 like("\x{101}a", qr/\x{101}/i, $message);
415 like("\x{100}a", qr/\x{101}/i, $message);
416 like("a\x{100}", qr/A\x{100}/i, $message);
417 like("A\x{100}", qr/a\x{100}/i, $message);
418 like("a\x{100}", qr/a\x{100}/i, $message);
419 like("A\x{100}", qr/A\x{100}/i, $message);
420 like("a\x{100}", qr/[A]/i, $message);
421 like("A\x{100}", qr/[a]/i, $message);
422 like("a\x{100}", qr/[a]/i, $message);
423 like("A\x{100}", qr/[A]/i, $message);
424 like("\x{101}a", qr/[\x{100}]/i, $message);
425 like("\x{100}a", qr/[\x{100}]/i, $message);
426 like("\x{101}a", qr/[\x{101}]/i, $message);
427 like("\x{100}a", qr/[\x{101}]/i, $message);
e425a60b
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428 }
429
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430 {
431 use charnames ':full';
de946258 432 my $message = "Folding 'LATIN LETTER A WITH GRAVE'";
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433
434 my $lower = "\N{LATIN SMALL LETTER A WITH GRAVE}";
435 my $UPPER = "\N{LATIN CAPITAL LETTER A WITH GRAVE}";
0f289c68 436
de946258
NC
437 like($lower, qr/$UPPER/i, $message);
438 like($UPPER, qr/$lower/i, $message);
439 like($lower, qr/[$UPPER]/i, $message);
440 like($UPPER, qr/[$lower]/i, $message);
e425a60b 441
de946258 442 $message = "Folding 'GREEK LETTER ALPHA WITH VRACHY'";
e425a60b
YO
443
444 $lower = "\N{GREEK CAPITAL LETTER ALPHA WITH VRACHY}";
445 $UPPER = "\N{GREEK SMALL LETTER ALPHA WITH VRACHY}";
446
de946258
NC
447 like($lower, qr/$UPPER/i, $message);
448 like($UPPER, qr/$lower/i, $message);
449 like($lower, qr/[$UPPER]/i, $message);
450 like($UPPER, qr/[$lower]/i, $message);
e425a60b 451
de946258 452 $message = "Folding 'LATIN LETTER Y WITH DIAERESIS'";
e425a60b
YO
453
454 $lower = "\N{LATIN SMALL LETTER Y WITH DIAERESIS}";
455 $UPPER = "\N{LATIN CAPITAL LETTER Y WITH DIAERESIS}";
456
de946258
NC
457 like($lower, qr/$UPPER/i, $message);
458 like($UPPER, qr/$lower/i, $message);
459 like($lower, qr/[$UPPER]/i, $message);
460 like($UPPER, qr/[$lower]/i, $message);
e425a60b
YO
461 }
462
e425a60b
YO
463 {
464 use charnames ':full';
de946258 465 my $message = "GREEK CAPITAL LETTER SIGMA vs " .
e425a60b
YO
466 "COMBINING GREEK PERISPOMENI";
467
468 my $SIGMA = "\N{GREEK CAPITAL LETTER SIGMA}";
469 my $char = "\N{COMBINING GREEK PERISPOMENI}";
470
c11a8df3
NC
471 warning_is(sub {unlike("_:$char:_", qr/_:$SIGMA:_/i, $message)}, undef,
472 'Did not warn [change a5961de5f4215b5c]');
e425a60b
YO
473 }
474
e425a60b 475 {
de946258 476 my $message = '\X';
e425a60b
YO
477 use charnames ':full';
478
de946258
NC
479 ok("a!" =~ /^(\X)!/ && $1 eq "a", $message);
480 ok("\xDF!" =~ /^(\X)!/ && $1 eq "\xDF", $message);
481 ok("\x{100}!" =~ /^(\X)!/ && $1 eq "\x{100}", $message);
482 ok("\x{100}\x{300}!" =~ /^(\X)!/ && $1 eq "\x{100}\x{300}", $message);
483 ok("\N{LATIN CAPITAL LETTER E}!" =~ /^(\X)!/ &&
484 $1 eq "\N{LATIN CAPITAL LETTER E}", $message);
485 ok("\N{LATIN CAPITAL LETTER E}\N{COMBINING GRAVE ACCENT}!"
e425a60b 486 =~ /^(\X)!/ &&
de946258 487 $1 eq "\N{LATIN CAPITAL LETTER E}\N{COMBINING GRAVE ACCENT}", $message);
e425a60b 488
de946258
NC
489 $message = '\C and \X';
490 like("!abc!", qr/a\Cc/, $message);
491 like("!abc!", qr/a\Xc/, $message);
e425a60b
YO
492 }
493
e425a60b 494 {
de946258 495 my $message = "Final Sigma";
e425a60b
YO
496
497 my $SIGMA = "\x{03A3}"; # CAPITAL
498 my $Sigma = "\x{03C2}"; # SMALL FINAL
499 my $sigma = "\x{03C3}"; # SMALL
500
de946258
NC
501 like($SIGMA, qr/$SIGMA/i, $message);
502 like($SIGMA, qr/$Sigma/i, $message);
503 like($SIGMA, qr/$sigma/i, $message);
e425a60b 504
de946258
NC
505 like($Sigma, qr/$SIGMA/i, $message);
506 like($Sigma, qr/$Sigma/i, $message);
507 like($Sigma, qr/$sigma/i, $message);
e425a60b 508
de946258
NC
509 like($sigma, qr/$SIGMA/i, $message);
510 like($sigma, qr/$Sigma/i, $message);
511 like($sigma, qr/$sigma/i, $message);
0f289c68 512
de946258
NC
513 like($SIGMA, qr/[$SIGMA]/i, $message);
514 like($SIGMA, qr/[$Sigma]/i, $message);
515 like($SIGMA, qr/[$sigma]/i, $message);
e425a60b 516
de946258
NC
517 like($Sigma, qr/[$SIGMA]/i, $message);
518 like($Sigma, qr/[$Sigma]/i, $message);
519 like($Sigma, qr/[$sigma]/i, $message);
e425a60b 520
de946258
NC
521 like($sigma, qr/[$SIGMA]/i, $message);
522 like($sigma, qr/[$Sigma]/i, $message);
523 like($sigma, qr/[$sigma]/i, $message);
e425a60b 524
de946258 525 $message = "More final Sigma";
e425a60b
YO
526
527 my $S3 = "$SIGMA$Sigma$sigma";
528
de946258
NC
529 ok(":$S3:" =~ /:(($SIGMA)+):/i && $1 eq $S3 && $2 eq $sigma, $message);
530 ok(":$S3:" =~ /:(($Sigma)+):/i && $1 eq $S3 && $2 eq $sigma, $message);
531 ok(":$S3:" =~ /:(($sigma)+):/i && $1 eq $S3 && $2 eq $sigma, $message);
e425a60b 532
de946258
NC
533 ok(":$S3:" =~ /:(([$SIGMA])+):/i && $1 eq $S3 && $2 eq $sigma, $message);
534 ok(":$S3:" =~ /:(([$Sigma])+):/i && $1 eq $S3 && $2 eq $sigma, $message);
535 ok(":$S3:" =~ /:(([$sigma])+):/i && $1 eq $S3 && $2 eq $sigma, $message);
e425a60b
YO
536 }
537
e425a60b
YO
538 {
539 use charnames ':full';
de946258 540 my $message = "Parlez-Vous " .
e425a60b
YO
541 "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais?";
542
de946258
NC
543 ok("Fran\N{LATIN SMALL LETTER C}ais" =~ /Fran.ais/ &&
544 $& eq "Francais", $message);
545 ok("Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~ /Fran.ais/ &&
546 $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais", $message);
547 ok("Fran\N{LATIN SMALL LETTER C}ais" =~ /Fran\Cais/ &&
548 $& eq "Francais", $message);
e425a60b 549 # COMBINING CEDILLA is two bytes when encoded
de946258
NC
550 like("Franc\N{COMBINING CEDILLA}ais", qr/Franc\C\Cais/, $message);
551 ok("Fran\N{LATIN SMALL LETTER C}ais" =~ /Fran\Xais/ &&
552 $& eq "Francais", $message);
553 ok("Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~ /Fran\Xais/ &&
554 $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais", $message);
555 ok("Franc\N{COMBINING CEDILLA}ais" =~ /Fran\Xais/ &&
556 $& eq "Franc\N{COMBINING CEDILLA}ais", $message);
557 ok("Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~
e425a60b 558 /Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais/ &&
de946258
NC
559 $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais", $message);
560 ok("Franc\N{COMBINING CEDILLA}ais" =~ /Franc\N{COMBINING CEDILLA}ais/ &&
561 $& eq "Franc\N{COMBINING CEDILLA}ais", $message);
e425a60b
YO
562
563 my @f = (
564 ["Fran\N{LATIN SMALL LETTER C}ais", "Francais"],
565 ["Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais",
566 "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais"],
567 ["Franc\N{COMBINING CEDILLA}ais", "Franc\N{COMBINING CEDILLA}ais"],
568 );
569 foreach my $entry (@f) {
570 my ($subject, $match) = @$entry;
de946258 571 ok($subject =~ /Fran(?:c\N{COMBINING CEDILLA}?|
e425a60b 572 \N{LATIN SMALL LETTER C WITH CEDILLA})ais/x &&
de946258 573 $& eq $match, $message);
e425a60b
YO
574 }
575 }
576
e425a60b 577 {
de946258 578 my $message = "Lingering (and useless) UTF8 flag doesn't mess up /i";
e425a60b
YO
579 my $pat = "ABcde";
580 my $str = "abcDE\x{100}";
581 chop $str;
de946258 582 like($str, qr/$pat/i, $message);
e425a60b
YO
583
584 $pat = "ABcde\x{100}";
585 $str = "abcDE";
586 chop $pat;
de946258 587 like($str, qr/$pat/i, $message);
e425a60b
YO
588
589 $pat = "ABcde\x{100}";
590 $str = "abcDE\x{100}";
591 chop $pat;
592 chop $str;
de946258 593 like($str, qr/$pat/i, $message);
e425a60b
YO
594 }
595
e425a60b
YO
596 {
597 use charnames ':full';
de946258 598 my $message = "LATIN SMALL LETTER SHARP S " .
e425a60b
YO
599 "(\N{LATIN SMALL LETTER SHARP S})";
600
de946258
NC
601 like("\N{LATIN SMALL LETTER SHARP S}",
602 qr/\N{LATIN SMALL LETTER SHARP S}/, $message);
603 like("\N{LATIN SMALL LETTER SHARP S}",
604 qr/\N{LATIN SMALL LETTER SHARP S}/i, $message);
605 like("\N{LATIN SMALL LETTER SHARP S}",
606 qr/[\N{LATIN SMALL LETTER SHARP S}]/, $message);
607 like("\N{LATIN SMALL LETTER SHARP S}",
608 qr/[\N{LATIN SMALL LETTER SHARP S}]/i, $message);
e425a60b 609
de946258
NC
610 like("ss", qr /\N{LATIN SMALL LETTER SHARP S}/i, $message);
611 like("SS", qr /\N{LATIN SMALL LETTER SHARP S}/i, $message);
612 like("ss", qr/[\N{LATIN SMALL LETTER SHARP S}]/i, $message);
613 like("SS", qr/[\N{LATIN SMALL LETTER SHARP S}]/i, $message);
e425a60b 614
de946258
NC
615 like("\N{LATIN SMALL LETTER SHARP S}", qr/ss/i, $message);
616 like("\N{LATIN SMALL LETTER SHARP S}", qr/SS/i, $message);
0f289c68 617
de946258
NC
618 $message = "Unoptimized named sequence in class";
619 like("ss", qr/[\N{LATIN SMALL LETTER SHARP S}x]/i, $message);
620 like("SS", qr/[\N{LATIN SMALL LETTER SHARP S}x]/i, $message);
621 like("\N{LATIN SMALL LETTER SHARP S}",
622 qr/[\N{LATIN SMALL LETTER SHARP S}x]/, $message);
623 like("\N{LATIN SMALL LETTER SHARP S}",
624 qr/[\N{LATIN SMALL LETTER SHARP S}x]/i, $message);
e425a60b
YO
625 }
626
e425a60b
YO
627 {
628 # More whitespace: U+0085, U+2028, U+2029\n";
629
630 # U+0085, U+00A0 need to be forced to be Unicode, the \x{100} does that.
631 SKIP: {
ef237063 632 skip "EBCDIC platform", 4 if $::IS_EBCDIC;
e425a60b
YO
633 # Do \x{0015} and \x{0041} match \s in EBCDIC?
634 ok "<\x{100}\x{0085}>" =~ /<\x{100}\s>/, '\x{0085} in \s';
635 ok "<\x{0085}>" =~ /<\v>/, '\x{0085} in \v';
636 ok "<\x{100}\x{00A0}>" =~ /<\x{100}\s>/, '\x{00A0} in \s';
637 ok "<\x{00A0}>" =~ /<\h>/, '\x{00A0} in \h';
638 }
a9c9e371 639 my @h = map {sprintf "%05x" => $_} 0x01680, 0x02000 .. 0x0200A,
e425a60b
YO
640 0x0202F, 0x0205F, 0x03000;
641 my @v = map {sprintf "%05x" => $_} 0x02028, 0x02029;
642
643 my @H = map {sprintf "%05x" => $_} 0x01361, 0x0200B, 0x02408, 0x02420,
a9c9e371 644 0x0303F, 0xE0020, 0x180E;
e425a60b 645 my @V = map {sprintf "%05x" => $_} 0x0008A .. 0x0008D, 0x00348, 0x10100,
a9c9e371 646 0xE005F, 0xE007C, 0x180E;
e425a60b
YO
647
648 for my $hex (@h) {
649 my $str = eval qq ["<\\x{$hex}>"];
650 ok $str =~ /<\s>/, "\\x{$hex} in \\s";
651 ok $str =~ /<\h>/, "\\x{$hex} in \\h";
652 ok $str !~ /<\v>/, "\\x{$hex} not in \\v";
653 }
654
655 for my $hex (@v) {
656 my $str = eval qq ["<\\x{$hex}>"];
657 ok $str =~ /<\s>/, "\\x{$hex} in \\s";
658 ok $str =~ /<\v>/, "\\x{$hex} in \\v";
659 ok $str !~ /<\h>/, "\\x{$hex} not in \\h";
660 }
661
662 for my $hex (@H) {
663 my $str = eval qq ["<\\x{$hex}>"];
664 ok $str =~ /<\S>/, "\\x{$hex} in \\S";
665 ok $str =~ /<\H>/, "\\x{$hex} in \\H";
666 }
667
668 for my $hex (@V) {
669 my $str = eval qq ["<\\x{$hex}>"];
670 ok $str =~ /<\S>/, "\\x{$hex} in \\S";
671 ok $str =~ /<\V>/, "\\x{$hex} in \\V";
672 }
673 }
674
e425a60b
YO
675 {
676 # . with /s should work on characters, as opposed to bytes
de946258 677 my $message = ". with /s works on characters, not bytes";
e425a60b
YO
678
679 my $s = "\x{e4}\x{100}";
680 # This is not expected to match: the point is that
681 # neither should we get "Malformed UTF-8" warnings.
c11a8df3
NC
682 warning_is(sub {$s =~ /\G(.+?)\n/gcs}, undef,
683 "No 'Malformed UTF-8' warning");
e425a60b
YO
684
685 my @c;
686 push @c => $1 while $s =~ /\G(.)/gs;
687
688 local $" = "";
de946258 689 is("@c", $s, $message);
e425a60b
YO
690
691 # Test only chars < 256
692 my $t1 = "Q003\n\n\x{e4}\x{f6}\n\nQ004\n\n\x{e7}";
693 my $r1 = "";
694 while ($t1 =~ / \G ( .+? ) \n\s+ ( .+? ) ( $ | \n\s+ ) /xgcs) {
0f289c68 695 $r1 .= $1 . $2;
e425a60b
YO
696 }
697
698 my $t2 = $t1 . "\x{100}"; # Repeat with a larger char
699 my $r2 = "";
700 while ($t2 =~ / \G ( .+? ) \n\s+ ( .+? ) ( $ | \n\s+ ) /xgcs) {
0f289c68 701 $r2 .= $1 . $2;
e425a60b
YO
702 }
703 $r2 =~ s/\x{100}//;
704
de946258 705 is($r1, $r2, $message);
e425a60b
YO
706 }
707
e425a60b 708 {
de946258
NC
709 my $message = "Unicode lookbehind";
710 like("A\x{100}B" , qr/(?<=A.)B/, $message);
711 like("A\x{200}\x{300}B", qr/(?<=A..)B/, $message);
712 like("\x{400}AB" , qr/(?<=\x{400}.)B/, $message);
713 like("\x{500}\x{600}B" , qr/(?<=\x{500}.)B/, $message);
e425a60b
YO
714
715 # Original code also contained:
716 # ok "\x{500\x{600}}B" =~ /(?<=\x{500}.)B/;
717 # but that looks like a typo.
718 }
719
e425a60b 720 {
de946258 721 my $message = 'UTF-8 hash keys and /$/';
e425a60b
YO
722 # http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters
723 # /2002-01/msg01327.html
724
725 my $u = "a\x{100}";
726 my $v = substr ($u, 0, 1);
727 my $w = substr ($u, 1, 1);
728 my %u = ($u => $u, $v => $v, $w => $w);
729 for (keys %u) {
730 my $m1 = /^\w*$/ ? 1 : 0;
731 my $m2 = $u {$_} =~ /^\w*$/ ? 1 : 0;
de946258 732 is($m1, $m2, $message);
e425a60b
YO
733 }
734 }
735
e425a60b 736 {
de946258 737 my $message = "No SEGV in s/// and UTF-8";
e425a60b 738 my $s = "s#\x{100}" x 4;
de946258 739 ok($s =~ s/[^\w]/ /g, $message);
2e84be61 740 if ( 1 or $ENV{PERL_TEST_LEGACY_POSIX_CC} ) {
de946258 741 is($s, "s \x{100}" x 4, $message);
e425a60b
YO
742 }
743 else {
de946258 744 is($s, "s " x 4, $message);
e425a60b
YO
745 }
746 }
747
e425a60b 748 {
de946258 749 my $message = "UTF-8 bug (maybe already known?)";
e425a60b
YO
750 my $u = "foo";
751 $u =~ s/./\x{100}/g;
de946258 752 is($u, "\x{100}\x{100}\x{100}", $message);
e425a60b
YO
753
754 $u = "foobar";
755 $u =~ s/[ao]/\x{100}/g;
de946258 756 is($u, "f\x{100}\x{100}b\x{100}r", $message);
e425a60b
YO
757
758 $u =~ s/\x{100}/e/g;
de946258 759 is($u, "feeber", $message);
e425a60b
YO
760 }
761
e425a60b 762 {
de946258 763 my $message = "UTF-8 bug with s///";
e425a60b
YO
764 # check utf8/non-utf8 mixtures
765 # try to force all float/anchored check combinations
766
767 my $c = "\x{100}";
768 my $subst;
769 for my $re ("xx.*$c", "x.*$c$c", "$c.*xx", "$c$c.*x",
770 "xx.*(?=$c)", "(?=$c).*xx",) {
de946258
NC
771 unlike("xxx", qr/$re/, $message);
772 ok(+($subst = "xxx") !~ s/$re//, $message);
e425a60b
YO
773 }
774 for my $re ("xx.*$c*", "$c*.*xx") {
de946258
NC
775 like("xxx", qr/$re/, $message);
776 ok(+($subst = "xxx") =~ s/$re//, $message);
777 is($subst, "", $message);
e425a60b
YO
778 }
779 for my $re ("xxy*", "y*xx") {
de946258
NC
780 like("xx$c", qr/$re/, $message);
781 ok(+($subst = "xx$c") =~ s/$re//, $message);
782 is($subst, $c, $message);
783 unlike("xy$c", qr/$re/, $message);
784 ok(+($subst = "xy$c") !~ s/$re//, $message);
e425a60b
YO
785 }
786 for my $re ("xy$c*z", "x$c*yz") {
de946258
NC
787 like("xyz", qr/$re/, $message);
788 ok(+($subst = "xyz") =~ s/$re//, $message);
789 is($subst, "", $message);
e425a60b
YO
790 }
791 }
792
e425a60b 793 {
c72077c4
AC
794 # The second half of RT #114808
795 warning_is(sub {'aa' =~ /.+\x{100}/}, undef,
796 'utf8-only floating substr, non-utf8 target, no warning');
797 }
798
799 {
de946258 800 my $message = "qr /.../x";
e425a60b 801 my $R = qr / A B C # D E/x;
de946258
NC
802 ok("ABCDE" =~ $R && $& eq "ABC", $message);
803 ok("ABCDE" =~ /$R/ && $& eq "ABC", $message);
804 ok("ABCDE" =~ m/$R/ && $& eq "ABC", $message);
805 ok("ABCDE" =~ /($R)/ && $1 eq "ABC", $message);
806 ok("ABCDE" =~ m/($R)/ && $1 eq "ABC", $message);
e425a60b
YO
807 }
808
e425a60b
YO
809 {
810 local $\;
811 $_ = 'aaaaaaaaaa';
812 utf8::upgrade($_); chop $_; $\="\n";
813 ok /[^\s]+/, 'm/[^\s]/ utf8';
814 ok /[^\d]+/, 'm/[^\d]/ utf8';
815 ok +($a = $_, $_ =~ s/[^\s]+/./g), 's/[^\s]/ utf8';
816 ok +($a = $_, $a =~ s/[^\d]+/./g), 's/[^\s]/ utf8';
817 }
818
e425a60b
YO
819 {
820 # Subject: Odd regexp behavior
821 # From: Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>
822 # Date: Wed, 26 Feb 2003 16:53:12 +0000
823 # Message-Id: <E18o4nw-0008Ly-00@wisbech.cl.cam.ac.uk>
824 # To: perl-unicode@perl.org
825
de946258 826 my $message = 'Markus Kuhn 2003-02-26';
0f289c68 827
e425a60b 828 my $x = "\x{2019}\nk";
de946258
NC
829 ok($x =~ s/(\S)\n(\S)/$1 $2/sg, $message);
830 is($x, "\x{2019} k", $message);
e425a60b
YO
831
832 $x = "b\nk";
de946258
NC
833 ok($x =~ s/(\S)\n(\S)/$1 $2/sg, $message);
834 is($x, "b k", $message);
e425a60b 835
de946258 836 like("\x{2019}", qr/\S/, $message);
e425a60b
YO
837 }
838
e425a60b 839 {
e425a60b
YO
840 ok "\x{100}\n" =~ /\x{100}\n$/, "UTF-8 length cache and fbm_compile";
841 }
842
e425a60b
YO
843 {
844 package Str;
845 use overload q /""/ => sub {${$_ [0]};};
846 sub new {my ($c, $v) = @_; bless \$v, $c;}
847
848 package main;
849 $_ = Str -> new ("a\x{100}/\x{100}b");
850 ok join (":", /\b(.)\x{100}/g) eq "a:/", "re_intuit_start and PL_bostr";
851 }
852
e425a60b
YO
853 {
854 my $re = qq /^([^X]*)X/;
855 utf8::upgrade ($re);
856 ok "\x{100}X" =~ /$re/, "S_cl_and ANYOF_UNICODE & ANYOF_INVERTED";
0ab1ff8e
KW
857 my $loc_re = qq /(?l:^([^X]*)X)/;
858 utf8::upgrade ($loc_re);
859 ok "\x{100}X" =~ /$loc_re/, "locale, S_cl_and ANYOF_UNICODE & ANYOF_INVERTED";
e425a60b
YO
860 }
861
e425a60b
YO
862 {
863 ok "123\x{100}" =~ /^.*1.*23\x{100}$/,
864 'UTF-8 + multiple floating substr';
865 }
866
e425a60b 867 {
de946258 868 my $message = '<20030808193656.5109.1@llama.ni-s.u-net.com>';
e425a60b
YO
869
870 # LATIN SMALL/CAPITAL LETTER A WITH MACRON
de946258 871 like(" \x{101}", qr/\x{100}/i, $message);
e425a60b
YO
872
873 # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW
de946258 874 like(" \x{1E01}", qr/\x{1E00}/i, $message);
e425a60b
YO
875
876 # DESERET SMALL/CAPITAL LETTER LONG I
de946258 877 like(" \x{10428}", qr/\x{10400}/i, $message);
e425a60b
YO
878
879 # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'
de946258 880 like(" \x{1E01}x", qr/\x{1E00}X/i, $message);
e425a60b
YO
881 }
882
e425a60b 883 {
26faadbd 884 for (120 .. 130, 240 .. 260) {
e425a60b 885 my $head = 'x' x $_;
de946258 886 my $message = q [Don't misparse \x{...} in regexp ] .
26faadbd 887 q [near EXACT char count limit];
e425a60b 888 for my $tail ('\x{0061}', '\x{1234}', '\x61') {
14358a41
NC
889 eval qq{like("$head$tail", qr/$head$tail/, \$message)};
890 is($@, '', $message);
e425a60b 891 }
de946258 892 $message = q [Don't misparse \N{...} in regexp ] .
26faadbd 893 q [near EXACT char count limit];
e425a60b 894 for my $tail ('\N{SNOWFLAKE}') {
14358a41
NC
895 eval qq {use charnames ':full';
896 like("$head$tail", qr/$head$tail/, \$message)};
897 is($@, '', $message);
e425a60b
YO
898 }
899 }
900 }
901
e425a60b
YO
902 { # TRIE related
903 our @got = ();
904 "words" =~ /(word|word|word)(?{push @got, $1})s$/;
de26e0cc 905 is(@got, 1, "TRIE optimisation");
e425a60b
YO
906
907 @got = ();
908 "words" =~ /(word|word|word)(?{push @got,$1})s$/i;
de26e0cc 909 is(@got, 1,"TRIEF optimisation");
e425a60b
YO
910
911 my @nums = map {int rand 1000} 1 .. 100;
912 my $re = "(" . (join "|", @nums) . ")";
913 $re = qr/\b$re\b/;
914
915 foreach (@nums) {
916 ok $_ =~ /$re/, "Trie nums";
917 }
918
919 $_ = join " ", @nums;
920 @got = ();
921 push @got, $1 while /$re/g;
922
923 my %count;
924 $count {$_} ++ for @got;
925 my $ok = 1;
926 for (@nums) {
927 $ok = 0 if --$count {$_} < 0;
928 }
929 ok $ok, "Trie min count matches";
930 }
931
e425a60b
YO
932 {
933 # TRIE related
934 # LATIN SMALL/CAPITAL LETTER A WITH MACRON
935 ok "foba \x{101}foo" =~ qr/(foo|\x{100}foo|bar)/i &&
936 $1 eq "\x{101}foo",
937 "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH MACRON";
938
939 # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW
940 ok "foba \x{1E01}foo" =~ qr/(foo|\x{1E00}foo|bar)/i &&
941 $1 eq "\x{1E01}foo",
942 "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH RING BELOW";
943
944 # DESERET SMALL/CAPITAL LETTER LONG I
945 ok "foba \x{10428}foo" =~ qr/(foo|\x{10400}foo|bar)/i &&
946 $1 eq "\x{10428}foo",
947 "TRIEF + DESERET SMALL/CAPITAL LETTER LONG I";
948
949 # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'
950 ok "foba \x{1E01}xfoo" =~ qr/(foo|\x{1E00}Xfoo|bar)/i &&
951 $1 eq "\x{1E01}xfoo",
952 "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'";
953
954 use charnames ':full';
955
956 my $s = "\N{LATIN SMALL LETTER SHARP S}";
957 ok "foba ba$s" =~ qr/(foo|Ba$s|bar)/i && $1 eq "ba$s",
958 "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
959 ok "foba ba$s" =~ qr/(Ba$s|foo|bar)/i && $1 eq "ba$s",
960 "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
961 ok "foba ba$s" =~ qr/(foo|bar|Ba$s)/i && $1 eq "ba$s",
962 "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
963
964 ok "foba ba$s" =~ qr/(foo|Bass|bar)/i && $1 eq "ba$s",
965 "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
966
967 ok "foba ba$s" =~ qr/(foo|BaSS|bar)/i && $1 eq "ba$s",
968 "TRIEF + LATIN SMALL LETTER SHARP S =~ SS";
969
970 ok "foba ba${s}pxySS$s$s" =~ qr/(b(?:a${s}t|a${s}f|a${s}p)[xy]+$s*)/i
971 && $1 eq "ba${s}pxySS$s$s",
972 "COMMON PREFIX TRIEF + LATIN SMALL LETTER SHARP S";
973 }
974
e425a60b 975 {
0f289c68
YO
976 BEGIN {
977 unshift @INC, 'lib';
978 }
e425a60b 979 use Cname;
0f289c68 980
e425a60b 981 ok 'fooB' =~ /\N{foo}[\N{B}\N{b}]/, "Passthrough charname";
94ca1619
KW
982 my $name = "foo\xDF";
983 my $result = eval "'A${name}B' =~ /^A\\N{$name}B\$/";
984 ok !$@ && $result, "Passthrough charname of non-ASCII, Latin1";
e425a60b
YO
985 #
986 # Why doesn't must_warn work here?
987 #
988 my $w;
989 local $SIG {__WARN__} = sub {$w .= "@_"};
990 eval 'q(xxWxx) =~ /[\N{WARN}]/';
2a53d331 991 ok $w && $w =~ /Using just the first character returned by \\N\{} in character class/,
ff3f963a 992 "single character in [\\N{}] warning";
e425a60b
YO
993
994 undef $w;
995 eval q [ok "\0" !~ /[\N{EMPTY-STR}XY]/,
5895685f 996 "Zerolength charname in charclass doesn't match \\\\0"];
ff3f963a
KW
997 ok $w && $w =~ /Ignoring zero length/,
998 'Ignoring zero length \N{} in character class warning';
67048c1b
KW
999 undef $w;
1000 eval q [ok 'xy' =~ /x[\N{EMPTY-STR} y]/x,
1001 'Empty string charname in [] is ignored; finds a following character'];
1002 ok $w && $w =~ /Ignoring zero length/,
1003 'Ignoring zero length \N{} in character class warning';
1004 undef $w;
1005 eval q [ok 'x ' =~ /x[\N{EMPTY-STR} y]/,
1006 'Empty string charname in [] is ignored; finds a following blank under /x'];
1007 ok $w && $w =~ /Ignoring zero length/,
1008 'Ignoring zero length \N{} in character class warning';
e425a60b
YO
1009
1010 ok 'AB' =~ /(\N{EVIL})/ && $1 eq 'A', 'Charname caching $1';
1011 ok 'ABC' =~ /(\N{EVIL})/, 'Charname caching $1';
1012 ok 'xy' =~ /x\N{EMPTY-STR}y/,
1013 'Empty string charname produces NOTHING node';
1014 ok '' =~ /\N{EMPTY-STR}/,
1015 'Empty string charname produces NOTHING node';
ff3f963a
KW
1016 ok "\N{LONG-STR}" =~ /^\N{LONG-STR}$/, 'Verify that long string works';
1017 ok "\N{LONG-STR}" =~ /^\N{LONG-STR}$/i, 'Verify under folding that long string works';
1018
902994e4
KW
1019 eval '/(?[[\N{EMPTY-STR}]])/';
1020 ok $@ && $@ =~ /Zero length \\N\{}/;
1021
bd299e29 1022 undef $w;
bd299e29 1023 {
3036c853 1024 () = eval q ["\N{TOO MANY SPACES}"];
2d8eb851 1025 like ($@, qr/charnames alias definitions may not contain a sequence of multiple spaces/, "Multiple spaces in a row in a charnames alias is fatal");
3036c853 1026 eval q [use utf8; () = "\N{TOO MANY SPACES}"];
2d8eb851 1027 like ($@, qr/charnames alias definitions may not contain a sequence of multiple spaces/, "... same under utf8");
94ec3a20 1028 }
bd299e29
KW
1029
1030 undef $w;
bd299e29 1031 {
94ec3a20 1032 () = eval q ["\N{TRAILING SPACE }"];
2d8eb851 1033 like ($@, qr/charnames alias definitions may not contain trailing white-space/, "Trailing white-space in a charnames alias is fatal");
94ec3a20 1034 eval q [use utf8; () = "\N{TRAILING SPACE }"];
2d8eb851 1035 like ($@, qr/charnames alias definitions may not contain trailing white-space/, "... same under utf8");
94ec3a20 1036 }
bd299e29 1037
2d8eb851 1038 undef $w;
7fc82458
KW
1039 my $Cedilla_Latin1 = "GAR"
1040 . latin1_to_native("\xC7")
1041 . "ON";
1042 my $Cedilla_utf8 = $Cedilla_Latin1;
1043 utf8::upgrade($Cedilla_utf8);
1044 eval qq[is("\\N{$Cedilla_Latin1}", "$Cedilla_Latin1", "A cedilla in character name works")];
1045 undef $w;
1046 {
1047 use feature 'unicode_eval';
1048 eval qq[use utf8; is("\\N{$Cedilla_utf8}", "$Cedilla_utf8", "... same under 'use utf8': they work")];
1049 }
1050
1051 undef $w;
df758df2
KW
1052 my $NBSP_Latin1 = "NBSP"
1053 . latin1_to_native("\xA0")
1054 . "SEPARATED"
1055 . latin1_to_native("\xA0")
1056 . "SPACE";
1057 my $NBSP_utf8 = $NBSP_Latin1;
1058 utf8::upgrade($NBSP_utf8);
1059 eval qq[is("\\N{$NBSP_Latin1}", "$NBSP_Latin1", "An NBSP in character name works")];
1060 like ($w, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "... but returns a deprecation warning");
1061 undef $w;
1062 {
1063 use feature 'unicode_eval';
1064 eval qq[use utf8; is("\\N{$NBSP_utf8}", "$NBSP_utf8", "Same under 'use utf8': they work")];
1065 like ($w, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "... but return a deprecation warning");
1066 }
1067 {
1068 # disable lexical warnings
1069 BEGIN { ${^WARNING_BITS} = undef; $^W = 0 }
1070 undef $w;
1071 () = eval qq["\\N{$NBSP_Latin1}"];
1072 like ($w, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "And returns a deprecation warning outside of lexical warnings");
1073 undef $w;
1074 use feature 'unicode_eval';
1075 eval qq[use utf8; () = "\\N{$NBSP_utf8}"];
1076 like ($w, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "... same under utf8");
1077 }
1078 {
1079 no warnings 'deprecated';
1080 undef $w;
1081 eval qq["\\N{$NBSP_Latin1}"];
1082 ok (! defined $w, "... and no warning if warnings are off");
1083 use feature 'unicode_eval';
1084 eval qq[use utf8; "\\N{$NBSP_utf8}"];
1085 ok (! defined $w, "... same under 'use utf8'");
1086 }
1087 {
1088 use warnings FATAL=>'deprecated';
1089 () = eval qq["\\N{$NBSP_Latin1}"];
1090 like ($@, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "... the warning can be fatal");
1091 use feature 'unicode_eval';
1092 eval qq[use utf8; () = "\\N{$NBSP_utf8}"];
1093 like ($@, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "... same under utf8");
1094 }
1095
6a642c21
FC
1096 {
1097 BEGIN { no strict; *CnameTest:: = *{"_charnames\0A::" } }
1098 package CnameTest { sub translator { pop } }
1099 BEGIN { $^H{charnames} = \&CnameTest::translator }
1100 undef $w;
1101 () = eval q ["\N{TOO MANY SPACES}"];
2d8eb851 1102 like ($@, qr/charnames alias definitions may not contain a sequence of multiple spaces/,
6a642c21
FC
1103 'translators in _charnames\0* packages get validated');
1104 }
1105
ff3f963a
KW
1106 # If remove the limitation in regcomp code these should work
1107 # differently
1108 undef $w;
e2a7e165 1109 eval q [ok "\N{TOO-LONG-STR}" =~ /^\N{TOO-LONG-STR}$/, 'Verify that what once was too long a string works'];
ff3f963a
KW
1110 eval 'q(syntax error) =~ /\N{MALFORMED}/';
1111 ok $@ && $@ =~ /Malformed/, 'Verify that malformed utf8 gives an error';
cb233ae3 1112 eval 'q() =~ /\N{4F}/';
4d7cd482 1113 ok $@ && $@ =~ /Invalid character/, 'Verify that leading digit in name gives error';
cb233ae3 1114 eval 'q() =~ /\N{COM,MA}/';
4d7cd482 1115 ok $@ && $@ =~ /Invalid character/, 'Verify that comma in name gives error';
94ca1619 1116 $name = "A\x{D7}O";
cb233ae3 1117 eval "q(W) =~ /\\N{$name}/";
4d7cd482 1118 ok $@ && $@ =~ /Invalid character/, 'Verify that latin1 symbol in name gives error';
bde9e88d
KW
1119 my $utf8_name = "7 CITIES OF GOLD";
1120 utf8::upgrade($utf8_name);
1121 eval "use utf8; q(W) =~ /\\N{$utf8_name}/";
1122 ok $@ && $@ =~ /Invalid character/, 'Verify that leading digit in utf8 name gives error';
1123 $utf8_name = "SHARP #";
1124 utf8::upgrade($utf8_name);
1125 eval "use utf8; q(W) =~ /\\N{$utf8_name}/";
1126 ok $@ && $@ =~ /Invalid character/, 'Verify that ASCII symbol in utf8 name gives error';
1127 $utf8_name = "A HOUSE \xF7 AGAINST ITSELF";
1128 utf8::upgrade($utf8_name);
1129 eval "use utf8; q(W) =~ /\\N{$utf8_name}/";
1130 ok $@ && $@ =~ /Invalid character/, 'Verify that latin1 symbol in utf8 name gives error';
1131 $utf8_name = "\x{664} HORSEMEN}";
1132 eval "use utf8; q(W) =~ /\\N{$utf8_name}/";
1133 ok $@ && $@ =~ /Invalid character/, 'Verify that leading above Latin1 digit in utf8 name gives error';
1134 $utf8_name = "A \x{1F4A9} WOULD SMELL AS SWEET}";
1135 eval "use utf8; q(W) =~ /\\N{$utf8_name}/";
1136 ok $@ && $@ =~ /Invalid character/, 'Verify that above Latin1 symbol in utf8 name gives error';
1137
cb233ae3
KW
1138 undef $w;
1139 $name = "A\x{D1}O";
1140 eval "q(W) =~ /\\N{$name}/";
1141 ok ! $w, 'Verify that latin1 letter in name doesnt give warning';
0f289c68 1142
ba7b73c5
NC
1143 # This tests the code path that restarts the parse when the recursive
1144 # call to S_reg() from within S_grok_bslash_N() discovers that the
1145 # pattern needs to be recalculated as UTF-8. use eval to avoid
1146 # needing literal Unicode in this source file:
1147 my $r = eval "qr/\\N{\x{100}\x{100}}/";
1148 isnt $r, undef, "Generated regex for multi-char UTF-8 charname"
1149 or diag($@);
1150 ok "\x{100}\x{100}" =~ $r, "which matches";
e425a60b
YO
1151 }
1152
e425a60b
YO
1153 {
1154 use charnames ':full';
1155
1156 ok 'aabc' !~ /a\N{PLUS SIGN}b/, '/a\N{PLUS SIGN}b/ against aabc';
1157 ok 'a+bc' =~ /a\N{PLUS SIGN}b/, '/a\N{PLUS SIGN}b/ against a+bc';
1158
1159 ok ' A B' =~ /\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}/,
1160 'Intermixed named and unicode escapes';
1161 ok "\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}" =~
1162 /\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}/,
1163 'Intermixed named and unicode escapes';
1164 ok "\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}" =~
1165 /[\N{SPACE}\N{U+0041}][\N{SPACE}\N{U+0042}]/,
0f289c68 1166 'Intermixed named and unicode escapes';
ff3f963a 1167 ok "\0" =~ /^\N{NULL}$/, 'Verify that \N{NULL} works; is not confused with an error';
e425a60b
YO
1168 }
1169
e425a60b
YO
1170 {
1171 our $brackets;
1172 $brackets = qr{
1173 { (?> [^{}]+ | (??{ $brackets }) )* }
1174 }x;
1175
1176 ok "{b{c}d" !~ m/^((??{ $brackets }))/, "Bracket mismatch";
1177
1178 SKIP: {
1179 our @stack = ();
1180 my @expect = qw(
1181 stuff1
1182 stuff2
1183 <stuff1>and<stuff2>
1184 right
1185 <right>
1186 <<right>>
1187 <<<right>>>
1188 <<stuff1>and<stuff2>><<<<right>>>>
1189 );
1190
1191 local $_ = '<<<stuff1>and<stuff2>><<<<right>>>>>';
1192 ok /^(<((?:(?>[^<>]+)|(?1))*)>(?{push @stack, $2 }))$/,
1193 "Recursion matches";
de26e0cc 1194 is(@stack, @expect, "Right amount of matches")
e425a60b
YO
1195 or skip "Won't test individual results as count isn't equal",
1196 0 + @expect;
1197 my $idx = 0;
1198 foreach my $expect (@expect) {
de26e0cc
NC
1199 is($stack [$idx], $expect,
1200 "Expecting '$expect' at stack pos #$idx");
e425a60b
YO
1201 $idx ++;
1202 }
1203 }
1204 }
1205
e425a60b
YO
1206 {
1207 my $s = '123453456';
1208 $s =~ s/(?<digits>\d+)\k<digits>/$+{digits}/;
1209 ok $s eq '123456', 'Named capture (angle brackets) s///';
1210 $s = '123453456';
1211 $s =~ s/(?'digits'\d+)\k'digits'/$+{digits}/;
0f289c68 1212 ok $s eq '123456', 'Named capture (single quotes) s///';
e425a60b
YO
1213 }
1214
e425a60b
YO
1215 {
1216 my @ary = (
1217 pack('U', 0x00F1), # n-tilde
1218 '_'.pack('U', 0x00F1), # _ + n-tilde
1219 'c'.pack('U', 0x0327), # c + cedilla
1220 pack('U*', 0x00F1, 0x0327), # n-tilde + cedilla
e425a60b
YO
1221 pack('U', 0x0391), # ALPHA
1222 pack('U', 0x0391).'2', # ALPHA + 2
1223 pack('U', 0x0391).'_', # ALPHA + _
1224 );
1225
1226 for my $uni (@ary) {
1227 my ($r1, $c1, $r2, $c2) = eval qq {
1228 use utf8;
1229 scalar ("..foo foo.." =~ /(?'${uni}'foo) \\k'${uni}'/),
1230 \$+{${uni}},
1231 scalar ("..bar bar.." =~ /(?<${uni}>bar) \\k<${uni}>/),
1232 \$+{${uni}};
1233 };
1234 ok $r1, "Named capture UTF (?'')";
1235 ok defined $c1 && $c1 eq 'foo', "Named capture UTF \%+";
1236 ok $r2, "Named capture UTF (?<>)";
1237 ok defined $c2 && $c2 eq 'bar', "Named capture UTF \%+";
1238 }
1239 }
1240
e425a60b
YO
1241 {
1242 my $s = 'foo bar baz';
1243 my @res;
1244 if ('1234' =~ /(?<A>1)(?<B>2)(?<A>3)(?<B>4)/) {
1245 foreach my $name (sort keys(%-)) {
1246 my $ary = $- {$name};
1247 foreach my $idx (0 .. $#$ary) {
1248 push @res, "$name:$idx:$ary->[$idx]";
1249 }
1250 }
1251 }
1252 my @expect = qw (A:0:1 A:1:3 B:0:2 B:1:4);
de26e0cc 1253 is("@res", "@expect", "Check %-");
e425a60b
YO
1254 eval'
1255 no warnings "uninitialized";
1256 print for $- {this_key_doesnt_exist};
1257 ';
1258 ok !$@,'lvalue $- {...} should not throw an exception';
1259 }
1260
e425a60b
YO
1261 {
1262 # \, breaks {3,4}
412f55bb 1263 no warnings qw{deprecated regexp};
e425a60b
YO
1264 ok "xaaay" !~ /xa{3\,4}y/, '\, in a pattern';
1265 ok "xa{3,4}y" =~ /xa{3\,4}y/, '\, in a pattern';
1266
1267 # \c\ followed by _
1268 ok "x\c_y" !~ /x\c\_y/, '\_ in a pattern';
1269 ok "x\c\_y" =~ /x\c\_y/, '\_ in a pattern';
1270
1271 # \c\ followed by other characters
1272 for my $c ("z", "\0", "!", chr(254), chr(256)) {
1273 my $targ = "a\034$c";
1274 my $reg = "a\\c\\$c";
1275 ok eval ("qq/$targ/ =~ /$reg/"), "\\c\\ in pattern";
1276 }
1277 }
1278
e425a60b
YO
1279 { # Test the (*PRUNE) pattern
1280 our $count = 0;
1281 'aaab' =~ /a+b?(?{$count++})(*FAIL)/;
de26e0cc 1282 is($count, 9, "Expect 9 for no (*PRUNE)");
e425a60b
YO
1283 $count = 0;
1284 'aaab' =~ /a+b?(*PRUNE)(?{$count++})(*FAIL)/;
de26e0cc 1285 is($count, 3, "Expect 3 with (*PRUNE)");
e425a60b
YO
1286 local $_ = 'aaab';
1287 $count = 0;
1288 1 while /.(*PRUNE)(?{$count++})(*FAIL)/g;
de26e0cc 1289 is($count, 4, "/.(*PRUNE)/");
e425a60b
YO
1290 $count = 0;
1291 'aaab' =~ /a+b?(??{'(*PRUNE)'})(?{$count++})(*FAIL)/;
de26e0cc 1292 is($count, 3, "Expect 3 with (*PRUNE)");
e425a60b
YO
1293 local $_ = 'aaab';
1294 $count = 0;
1295 1 while /.(??{'(*PRUNE)'})(?{$count++})(*FAIL)/g;
de26e0cc 1296 is($count, 4, "/.(*PRUNE)/");
e425a60b
YO
1297 }
1298
e425a60b
YO
1299 { # Test the (*SKIP) pattern
1300 our $count = 0;
1301 'aaab' =~ /a+b?(*SKIP)(?{$count++})(*FAIL)/;
de26e0cc 1302 is($count, 1, "Expect 1 with (*SKIP)");
e425a60b
YO
1303 local $_ = 'aaab';
1304 $count = 0;
1305 1 while /.(*SKIP)(?{$count++})(*FAIL)/g;
de26e0cc 1306 is($count, 4, "/.(*SKIP)/");
e425a60b
YO
1307 $_ = 'aaabaaab';
1308 $count = 0;
1309 our @res = ();
1310 1 while /(a+b?)(*SKIP)(?{$count++; push @res,$1})(*FAIL)/g;
de26e0cc
NC
1311 is($count, 2, "Expect 2 with (*SKIP)");
1312 is("@res", "aaab aaab", "Adjacent (*SKIP) works as expected");
e425a60b
YO
1313 }
1314
e425a60b
YO
1315 { # Test the (*SKIP) pattern
1316 our $count = 0;
1317 'aaab' =~ /a+b?(*MARK:foo)(*SKIP)(?{$count++})(*FAIL)/;
de26e0cc 1318 is($count, 1, "Expect 1 with (*SKIP)");
e425a60b
YO
1319 local $_ = 'aaab';
1320 $count = 0;
1321 1 while /.(*MARK:foo)(*SKIP)(?{$count++})(*FAIL)/g;
de26e0cc 1322 is($count, 4, "/.(*SKIP)/");
e425a60b
YO
1323 $_ = 'aaabaaab';
1324 $count = 0;
1325 our @res = ();
1326 1 while /(a+b?)(*MARK:foo)(*SKIP)(?{$count++; push @res,$1})(*FAIL)/g;
de26e0cc
NC
1327 is($count, 2, "Expect 2 with (*SKIP)");
1328 is("@res", "aaab aaab", "Adjacent (*SKIP) works as expected");
e425a60b
YO
1329 }
1330
e425a60b
YO
1331 { # Test the (*SKIP) pattern
1332 our $count = 0;
1333 'aaab' =~ /a*(*MARK:a)b?(*MARK:b)(*SKIP:a)(?{$count++})(*FAIL)/;
de26e0cc 1334 is($count, 3, "Expect 3 with *MARK:a)b?(*MARK:b)(*SKIP:a)");
e425a60b
YO
1335 local $_ = 'aaabaaab';
1336 $count = 0;
1337 our @res = ();
1338 1 while
1339 /(a*(*MARK:a)b?)(*MARK:x)(*SKIP:a)(?{$count++; push @res,$1})(*FAIL)/g;
de26e0cc
NC
1340 is($count, 5, "Expect 5 with (*MARK:a)b?)(*MARK:x)(*SKIP:a)");
1341 is("@res", "aaab b aaab b ",
1342 "Adjacent (*MARK:a)b?)(*MARK:x)(*SKIP:a) works as expected");
e425a60b
YO
1343 }
1344
e425a60b
YO
1345 { # Test the (*COMMIT) pattern
1346 our $count = 0;
1347 'aaabaaab' =~ /a+b?(*COMMIT)(?{$count++})(*FAIL)/;
de26e0cc 1348 is($count, 1, "Expect 1 with (*COMMIT)");
e425a60b
YO
1349 local $_ = 'aaab';
1350 $count = 0;
1351 1 while /.(*COMMIT)(?{$count++})(*FAIL)/g;
de26e0cc 1352 is($count, 1, "/.(*COMMIT)/");
e425a60b
YO
1353 $_ = 'aaabaaab';
1354 $count = 0;
1355 our @res = ();
1356 1 while /(a+b?)(*COMMIT)(?{$count++; push @res,$1})(*FAIL)/g;
de26e0cc
NC
1357 is($count, 1, "Expect 1 with (*COMMIT)");
1358 is("@res", "aaab", "Adjacent (*COMMIT) works as expected");
3542935d
DM
1359
1360 ok("1\n2a\n" !~ /^\d+(*COMMIT)\w+/m, "COMMIT and anchors");
e425a60b
YO
1361 }
1362
e425a60b
YO
1363 {
1364 # Test named commits and the $REGERROR var
1365 our $REGERROR;
1366 for my $name ('', ':foo') {
1367 for my $pat ("(*PRUNE$name)",
1368 ($name ? "(*MARK$name)" : "") . "(*SKIP$name)",
0f289c68 1369 "(*COMMIT$name)") {
e425a60b
YO
1370 for my $suffix ('(*FAIL)', '') {
1371 'aaaab' =~ /a+b$pat$suffix/;
de26e0cc 1372 is($REGERROR,
e425a60b 1373 ($suffix ? ($name ? 'foo' : "1") : ""),
de26e0cc 1374 "Test $pat and \$REGERROR $suffix");
e425a60b
YO
1375 }
1376 }
1377 }
1378 }
1379
e425a60b
YO
1380 {
1381 # Test named commits and the $REGERROR var
1382 package Fnorble;
1383 our $REGERROR;
1384 for my $name ('', ':foo') {
1385 for my $pat ("(*PRUNE$name)",
1386 ($name ? "(*MARK$name)" : "") . "(*SKIP$name)",
0f289c68 1387 "(*COMMIT$name)") {
e425a60b
YO
1388 for my $suffix ('(*FAIL)','') {
1389 'aaaab' =~ /a+b$pat$suffix/;
de26e0cc 1390 ::is($REGERROR,
e425a60b 1391 ($suffix ? ($name ? 'foo' : "1") : ""),
de26e0cc 1392 "Test $pat and \$REGERROR $suffix");
e425a60b
YO
1393 }
1394 }
0f289c68
YO
1395 }
1396 }
e425a60b 1397
e425a60b
YO
1398 {
1399 # Test named commits and the $REGERROR var
de946258 1400 my $message = '$REGERROR';
e425a60b
YO
1401 our $REGERROR;
1402 for my $word (qw (bar baz bop)) {
1403 $REGERROR = "";
1404 "aaaaa$word" =~
1405 /a+(?:bar(*COMMIT:bar)|baz(*COMMIT:baz)|bop(*COMMIT:bop))(*FAIL)/;
de946258 1406 is($REGERROR, $word, $message);
0f289c68 1407 }
e425a60b
YO
1408 }
1409
e425a60b
YO
1410 {
1411 #Mindnumbingly simple test of (*THEN)
1412 for ("ABC","BAX") {
1413 ok /A (*THEN) X | B (*THEN) C/x, "Simple (*THEN) test";
1414 }
1415 }
1416
e425a60b 1417 {
de946258 1418 my $message = "Relative Recursion";
e425a60b
YO
1419 my $parens = qr/(\((?:[^()]++|(?-1))*+\))/;
1420 local $_ = 'foo((2*3)+4-3) + bar(2*(3+4)-1*(2-3))';
1421 my ($all, $one, $two) = ('', '', '');
de946258
NC
1422 ok(m/foo $parens \s* \+ \s* bar $parens/x, $message);
1423 is($1, '((2*3)+4-3)', $message);
1424 is($2, '(2*(3+4)-1*(2-3))', $message);
1425 is($&, 'foo((2*3)+4-3) + bar(2*(3+4)-1*(2-3))', $message);
1426 is($&, $_, $message);
e425a60b
YO
1427 }
1428
1429 {
1430 my $spaces=" ";
1431 local $_ = join 'bar', $spaces, $spaces;
1432 our $count = 0;
1433 s/(?>\s+bar)(?{$count++})//g;
de26e0cc
NC
1434 is($_, $spaces, "SUSPEND final string");
1435 is($count, 1, "Optimiser should have prevented more than one match");
e425a60b
YO
1436 }
1437
e425a60b
YO
1438 {
1439 # From Message-ID: <877ixs6oa6.fsf@k75.linux.bogus>
1440 my $dow_name = "nada";
1441 my $parser = "(\$dow_name) = \$time_string =~ /(D\x{e9}\\ " .
1442 "C\x{e9}adaoin|D\x{e9}\\ Sathairn|\\w+|\x{100})/";
1443 my $time_string = "D\x{e9} C\x{e9}adaoin";
1444 eval $parser;
1445 ok !$@, "Test Eval worked";
de26e0cc 1446 is($dow_name, $time_string, "UTF-8 trie common prefix extraction");
e425a60b
YO
1447 }
1448
e425a60b
YO
1449 {
1450 my $v;
1451 ($v = 'bar') =~ /(\w+)/g;
1452 $v = 'foo';
de26e0cc
NC
1453 is("$1", 'bar',
1454 '$1 is safe after /g - may fail due to specialized config in pp_hot.c');
e425a60b
YO
1455 }
1456
e425a60b 1457 {
de946258 1458 my $message = "http://nntp.perl.org/group/perl.perl5.porters/118663";
e425a60b 1459 my $qr_barR1 = qr/(bar)\g-1/;
de946258
NC
1460 like("foobarbarxyz", $qr_barR1, $message);
1461 like("foobarbarxyz", qr/foo${qr_barR1}xyz/, $message);
1462 like("foobarbarxyz", qr/(foo)${qr_barR1}xyz/, $message);
1463 like("foobarbarxyz", qr/(foo)(bar)\g{-1}xyz/, $message);
1464 like("foobarbarxyz", qr/(foo${qr_barR1})xyz/, $message);
1465 like("foobarbarxyz", qr/(foo(bar)\g{-1})xyz/, $message);
0f289c68 1466 }
e425a60b 1467
e425a60b 1468 {
de946258 1469 my $message = '$REGMARK';
e425a60b
YO
1470 our @r = ();
1471 our ($REGMARK, $REGERROR);
de946258
NC
1472 like('foofoo', qr/foo (*MARK:foo) (?{push @r,$REGMARK}) /x, $message);
1473 is("@r","foo", $message);
1474 is($REGMARK, "foo", $message);
1475 unlike('foofoo', qr/foo (*MARK:foo) (*FAIL) /x, $message);
1476 is($REGMARK, '', $message);
1477 is($REGERROR, 'foo', $message);
e425a60b
YO
1478 }
1479
e425a60b 1480 {
de946258 1481 my $message = '\K test';
e425a60b
YO
1482 my $x;
1483 $x = "abc.def.ghi.jkl";
1484 $x =~ s/.*\K\..*//;
de946258 1485 is($x, "abc.def.ghi", $message);
0f289c68 1486
e425a60b
YO
1487 $x = "one two three four";
1488 $x =~ s/o+ \Kthree//g;
de946258 1489 is($x, "one two four", $message);
0f289c68 1490
e425a60b
YO
1491 $x = "abcde";
1492 $x =~ s/(.)\K/$1/g;
de946258 1493 is($x, "aabbccddee", $message);
e425a60b
YO
1494 }
1495
e425a60b
YO
1496 {
1497 sub kt {
1498 return '4' if $_[0] eq '09028623';
1499 }
1500 # Nested EVAL using PL_curpm (via $1 or friends)
1501 my $re;
1502 our $grabit = qr/ ([0-6][0-9]{7}) (??{ kt $1 }) [890] /x;
1503 $re = qr/^ ( (??{ $grabit }) ) $ /x;
1504 my @res = '0902862349' =~ $re;
de26e0cc
NC
1505 is(join ("-", @res), "0902862349",
1506 'PL_curpm is set properly on nested eval');
e425a60b
YO
1507
1508 our $qr = qr/ (o) (??{ $1 }) /x;
1509 ok 'boob'=~/( b (??{ $qr }) b )/x && 1, "PL_curpm, nested eval";
1510 }
1511
e425a60b
YO
1512 {
1513 use charnames ":full";
1514 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Alphabetic}/, "I =~ Alphabetic";
1515 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Uppercase}/, "I =~ Uppercase";
1516 ok "\N{ROMAN NUMERAL ONE}" !~ /\p{Lowercase}/, "I !~ Lowercase";
1517 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{IDStart}/, "I =~ ID_Start";
1518 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{IDContinue}/, "I =~ ID_Continue";
1519 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Alphabetic}/, "i =~ Alphabetic";
1520 ok "\N{SMALL ROMAN NUMERAL ONE}" !~ /\p{Uppercase}/, "i !~ Uppercase";
0ab1ff8e
KW
1521 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Uppercase}/i, "i =~ Uppercase under /i";
1522 ok "\N{SMALL ROMAN NUMERAL ONE}" !~ /\p{Titlecase}/, "i !~ Titlecase";
1523 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Titlecase}/i, "i =~ Titlecase under /i";
5895685f
NC
1524 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Lowercase}/i, "I =~ Lowercase under /i";
1525
e425a60b
YO
1526 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Lowercase}/, "i =~ Lowercase";
1527 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{IDStart}/, "i =~ ID_Start";
1528 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{IDContinue}/, "i =~ ID_Continue"
1529 }
1530
0ab1ff8e
KW
1531 { # More checking that /i works on the few properties that it makes a
1532 # difference. Uppercase, Lowercase, and Titlecase were done in the
1533 # block above
1534 ok "A" =~ /\p{PosixUpper}/, "A =~ PosixUpper";
1535 ok "A" =~ /\p{PosixUpper}/i, "A =~ PosixUpper under /i";
1536 ok "A" !~ /\p{PosixLower}/, "A !~ PosixLower";
1537 ok "A" =~ /\p{PosixLower}/i, "A =~ PosixLower under /i";
1538 ok "a" !~ /\p{PosixUpper}/, "a !~ PosixUpper";
1539 ok "a" =~ /\p{PosixUpper}/i, "a =~ PosixUpper under /i";
1540 ok "a" =~ /\p{PosixLower}/, "a =~ PosixLower";
1541 ok "a" =~ /\p{PosixLower}/i, "a =~ PosixLower under /i";
1542
1543 ok "\xC0" =~ /\p{XPosixUpper}/, "\\xC0 =~ XPosixUpper";
1544 ok "\xC0" =~ /\p{XPosixUpper}/i, "\\xC0 =~ XPosixUpper under /i";
1545 ok "\xC0" !~ /\p{XPosixLower}/, "\\xC0 !~ XPosixLower";
1546 ok "\xC0" =~ /\p{XPosixLower}/i, "\\xC0 =~ XPosixLower under /i";
1547 ok "\xE0" !~ /\p{XPosixUpper}/, "\\xE0 !~ XPosixUpper";
1548 ok "\xE0" =~ /\p{XPosixUpper}/i, "\\xE0 =~ XPosixUpper under /i";
1549 ok "\xE0" =~ /\p{XPosixLower}/, "\\xE0 =~ XPosixLower";
1550 ok "\xE0" =~ /\p{XPosixLower}/i, "\\xE0 =~ XPosixLower under /i";
1551
1552 ok "\xC0" =~ /\p{UppercaseLetter}/, "\\xC0 =~ UppercaseLetter";
1553 ok "\xC0" =~ /\p{UppercaseLetter}/i, "\\xC0 =~ UppercaseLetter under /i";
1554 ok "\xC0" !~ /\p{LowercaseLetter}/, "\\xC0 !~ LowercaseLetter";
1555 ok "\xC0" =~ /\p{LowercaseLetter}/i, "\\xC0 =~ LowercaseLetter under /i";
1556 ok "\xC0" !~ /\p{TitlecaseLetter}/, "\\xC0 !~ TitlecaseLetter";
1557 ok "\xC0" =~ /\p{TitlecaseLetter}/i, "\\xC0 =~ TitlecaseLetter under /i";
1558 ok "\xE0" !~ /\p{UppercaseLetter}/, "\\xE0 !~ UppercaseLetter";
1559 ok "\xE0" =~ /\p{UppercaseLetter}/i, "\\xE0 =~ UppercaseLetter under /i";
1560 ok "\xE0" =~ /\p{LowercaseLetter}/, "\\xE0 =~ LowercaseLetter";
1561 ok "\xE0" =~ /\p{LowercaseLetter}/i, "\\xE0 =~ LowercaseLetter under /i";
1562 ok "\xE0" !~ /\p{TitlecaseLetter}/, "\\xE0 !~ TitlecaseLetter";
1563 ok "\xE0" =~ /\p{TitlecaseLetter}/i, "\\xE0 =~ TitlecaseLetter under /i";
1564 ok "\x{1C5}" !~ /\p{UppercaseLetter}/, "\\x{1C5} !~ UppercaseLetter";
1565 ok "\x{1C5}" =~ /\p{UppercaseLetter}/i, "\\x{1C5} =~ UppercaseLetter under /i";
1566 ok "\x{1C5}" !~ /\p{LowercaseLetter}/, "\\x{1C5} !~ LowercaseLetter";
1567 ok "\x{1C5}" =~ /\p{LowercaseLetter}/i, "\\x{1C5} =~ LowercaseLetter under /i";
1568 ok "\x{1C5}" =~ /\p{TitlecaseLetter}/, "\\x{1C5} =~ TitlecaseLetter";
1569 ok "\x{1C5}" =~ /\p{TitlecaseLetter}/i, "\\x{1C5} =~ TitlecaseLetter under /i";
1570 }
1571
e425a60b
YO
1572 {
1573 # requirement of Unicode Technical Standard #18, 1.7 Code Points
1574 # cf. http://www.unicode.org/reports/tr18/#Supplementary_Characters
1575 for my $u (0x7FF, 0x800, 0xFFFF, 0x10000) {
1576 no warnings 'utf8'; # oops
1577 my $c = chr $u;
1578 my $x = sprintf '%04X', $u;
1579 ok "A${c}B" =~ /A[\0-\x{10000}]B/, "Unicode range - $x";
1580 }
1581 }
1582
e425a60b
YO
1583 {
1584 my $res="";
1585
1586 if ('1' =~ /(?|(?<digit>1)|(?<digit>2))/) {
1587 $res = "@{$- {digit}}";
1588 }
de26e0cc
NC
1589 is($res, "1",
1590 "Check that (?|...) doesnt cause dupe entries in the names array");
0f289c68 1591
e425a60b
YO
1592 $res = "";
1593 if ('11' =~ /(?|(?<digit>1)|(?<digit>2))(?&digit)/) {
1594 $res = "@{$- {digit}}";
1595 }
de26e0cc
NC
1596 is($res, "1",
1597 "Check that (?&..) to a buffer inside a (?|...) goes to the leftmost");
e425a60b
YO
1598 }
1599
e425a60b
YO
1600 {
1601 use warnings;
de946258 1602 my $message = "ASCII pattern that really is UTF-8";
e425a60b
YO
1603 my @w;
1604 local $SIG {__WARN__} = sub {push @w, "@_"};
0f289c68 1605 my $c = qq (\x{DF});
de946258
NC
1606 like($c, qr/${c}|\x{100}/, $message);
1607 is("@w", '', $message);
0f289c68 1608 }
e425a60b 1609
e425a60b 1610 {
de946258 1611 my $message = "Corruption of match results of qr// across scopes";
e425a60b
YO
1612 my $qr = qr/(fo+)(ba+r)/;
1613 'foobar' =~ /$qr/;
de946258 1614 is("$1$2", "foobar", $message);
e425a60b
YO
1615 {
1616 'foooooobaaaaar' =~ /$qr/;
de946258 1617 is("$1$2", 'foooooobaaaaar', $message);
e425a60b 1618 }
de946258 1619 is("$1$2", "foobar", $message);
e425a60b
YO
1620 }
1621
e425a60b 1622 {
de946258 1623 my $message = "HORIZWS";
e425a60b
YO
1624 local $_ = "\t \r\n \n \t".chr(11)."\n";
1625 s/\H/H/g;
1626 s/\h/h/g;
de946258 1627 is($_, "hhHHhHhhHH", $message);
e425a60b
YO
1628 $_ = "\t \r\n \n \t" . chr (11) . "\n";
1629 utf8::upgrade ($_);
1630 s/\H/H/g;
1631 s/\h/h/g;
de946258 1632 is($_, "hhHHhHhhHH", $message);
0f289c68 1633 }
e425a60b 1634
e425a60b 1635 {
de946258 1636 # Various whitespace special patterns
a9c9e371 1637 my @h = map {chr $_} 0x09, 0x20, 0xa0, 0x1680, 0x2000,
e425a60b
YO
1638 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006,
1639 0x2007, 0x2008, 0x2009, 0x200a, 0x202f, 0x205f,
1640 0x3000;
1641 my @v = map {chr $_} 0x0a, 0x0b, 0x0c, 0x0d, 0x85, 0x2028,
1642 0x2029;
1643 my @lb = ("\x0D\x0A", map {chr $_} 0x0A .. 0x0D, 0x85, 0x2028, 0x2029);
1644 foreach my $t ([\@h, qr/\h/, qr/\h+/],
1645 [\@v, qr/\v/, qr/\v+/],
1646 [\@lb, qr/\R/, qr/\R+/],) {
1647 my $ary = shift @$t;
1648 foreach my $pat (@$t) {
1649 foreach my $str (@$ary) {
df6841b6
KW
1650 my $temp_str = $str;
1651 $temp_str = display($temp_str);
1652 ok $str =~ /($pat)/, $temp_str . " =~ /($pat)";
1653 my $temp_1 = $1;
1654 is($1, $str, "\$1='" . display($temp_1) . "' eq '" . $temp_str . "' after ($pat)");
e425a60b 1655 utf8::upgrade ($str);
df6841b6
KW
1656 ok $str =~ /($pat)/, "Upgraded " . $temp_str . " =~ /($pat)/";
1657 is($1, $str, "\$1='" . display($temp_1) . "' eq '" . $temp_str . "'(upgraded) after ($pat)");
e425a60b
YO
1658 }
1659 }
1660 }
1661 }
1662
e425a60b 1663 {
de946258 1664 # Check that \\xDF match properly in its various forms
e425a60b
YO
1665 # Test that \xDF matches properly. this is pretty hacky stuff,
1666 # but its actually needed. The malarky with '-' is to prevent
1667 # compilation caching from playing any role in the test.
1668 my @df = (chr (0xDF), '-', chr (0xDF));
1669 utf8::upgrade ($df [2]);
1670 my @strs = ('ss', 'sS', 'Ss', 'SS', chr (0xDF));
1671 my @ss = map {("$_", "$_")} @strs;
1672 utf8::upgrade ($ss [$_ * 2 + 1]) for 0 .. $#strs;
1673
1674 for my $ssi (0 .. $#ss) {
1675 for my $dfi (0 .. $#df) {
1676 my $pat = $df [$dfi];
1677 my $str = $ss [$ssi];
1678 my $utf_df = ($dfi > 1) ? 'utf8' : '';
1679 my $utf_ss = ($ssi % 2) ? 'utf8' : '';
1680 (my $sstr = $str) =~ s/\xDF/\\xDF/;
1681
1682 if ($utf_df || $utf_ss || length ($ss [$ssi]) == 1) {
1683 my $ret = $str =~ /$pat/i;
1684 next if $pat eq '-';
1685 ok $ret, "\"$sstr\" =~ /\\xDF/i " .
1686 "(str is @{[$utf_ss||'latin']}, pat is " .
1687 "@{[$utf_df||'latin']})";
1688 }
1689 else {
1690 my $ret = $str !~ /$pat/i;
1691 next if $pat eq '-';
1692 ok $ret, "\"$sstr\" !~ /\\xDF/i " .
1693 "(str is @{[$utf_ss||'latin']}, pat is " .
1694 "@{[$utf_df||'latin']})";
1695 }
1696 }
1697 }
1698 }
1699
e425a60b 1700 {
de946258 1701 my $message = "BBC(Bleadperl Breaks CPAN) Today: String::Multibyte";
e425a60b
YO
1702 my $re = qr/(?:[\x00-\xFF]{4})/;
1703 my $hyp = "\0\0\0-";
1704 my $esc = "\0\0\0\\";
1705
1706 my $str = "$esc$hyp$hyp$esc$esc";
1707 my @a = ($str =~ /\G(?:\Q$esc$esc\E|\Q$esc$hyp\E|$re)/g);
1708
de946258 1709 is(@a,3, $message);
e425a60b 1710 local $" = "=";
de946258 1711 is("@a","$esc$hyp=$hyp=$esc$esc", $message);
e425a60b
YO
1712 }
1713
e425a60b
YO
1714 {
1715 # Test for keys in %+ and %-
de946258 1716 my $message = 'Test keys in %+ and %-';
dcd695b6 1717 no warnings 'uninitialized', 'deprecated', 'experimental::lexical_topic';
e425a60b
YO
1718 my $_ = "abcdef";
1719 /(?<foo>a)|(?<foo>b)/;
de946258
NC
1720 is((join ",", sort keys %+), "foo", $message);
1721 is((join ",", sort keys %-), "foo", $message);
1722 is((join ",", sort values %+), "a", $message);
1723 is((join ",", sort map "@$_", values %-), "a ", $message);
e425a60b 1724 /(?<bar>a)(?<bar>b)(?<quux>.)/;
de946258
NC
1725 is((join ",", sort keys %+), "bar,quux", $message);
1726 is((join ",", sort keys %-), "bar,quux", $message);
1727 is((join ",", sort values %+), "a,c", $message); # leftmost
1728 is((join ",", sort map "@$_", values %-), "a b,c", $message);
e425a60b 1729 /(?<un>a)(?<deux>c)?/; # second buffer won't capture
de946258
NC
1730 is((join ",", sort keys %+), "un", $message);
1731 is((join ",", sort keys %-), "deux,un", $message);
1732 is((join ",", sort values %+), "a", $message);
1733 is((join ",", sort map "@$_", values %-), ",a", $message);
e425a60b
YO
1734 }
1735
e425a60b
YO
1736 {
1737 # length() on captures, the numbered ones end up in Perl_magic_len
dcd695b6 1738 no warnings 'deprecated', 'experimental::lexical_topic';
e425a60b
YO
1739 my $_ = "aoeu \xe6var ook";
1740 /^ \w+ \s (?<eek>\S+)/x;
1741
de26e0cc
NC
1742 is(length $`, 0, q[length $`]);
1743 is(length $', 4, q[length $']);
1744 is(length $&, 9, q[length $&]);
1745 is(length $1, 4, q[length $1]);
1746 is(length $+{eek}, 4, q[length $+{eek} == length $1]);
e425a60b
YO
1747 }
1748
e425a60b
YO
1749 {
1750 my $ok = -1;
1751
1752 $ok = exists ($-{x}) ? 1 : 0 if 'bar' =~ /(?<x>foo)|bar/;
de26e0cc
NC
1753 is($ok, 1, '$-{x} exists after "bar"=~/(?<x>foo)|bar/');
1754 is(scalar (%+), 0, 'scalar %+ == 0 after "bar"=~/(?<x>foo)|bar/');
1755 is(scalar (%-), 1, 'scalar %- == 1 after "bar"=~/(?<x>foo)|bar/');
e425a60b
YO
1756
1757 $ok = -1;
1758 $ok = exists ($+{x}) ? 1 : 0 if 'bar' =~ /(?<x>foo)|bar/;
de26e0cc
NC
1759 is($ok, 0, '$+{x} not exists after "bar"=~/(?<x>foo)|bar/');
1760 is(scalar (%+), 0, 'scalar %+ == 0 after "bar"=~/(?<x>foo)|bar/');
1761 is(scalar (%-), 1, 'scalar %- == 1 after "bar"=~/(?<x>foo)|bar/');
e425a60b
YO
1762
1763 $ok = -1;
1764 $ok = exists ($-{x}) ? 1 : 0 if 'foo' =~ /(?<x>foo)|bar/;
de26e0cc
NC
1765 is($ok, 1, '$-{x} exists after "foo"=~/(?<x>foo)|bar/');
1766 is(scalar (%+), 1, 'scalar %+ == 1 after "foo"=~/(?<x>foo)|bar/');
1767 is(scalar (%-), 1, 'scalar %- == 1 after "foo"=~/(?<x>foo)|bar/');
e425a60b
YO
1768
1769 $ok = -1;
1770 $ok = exists ($+{x}) ? 1 : 0 if 'foo'=~/(?<x>foo)|bar/;
de26e0cc 1771 is($ok, 1, '$+{x} exists after "foo"=~/(?<x>foo)|bar/');
e425a60b
YO
1772 }
1773
e425a60b
YO
1774 {
1775 local $_;
1776 ($_ = 'abc') =~ /(abc)/g;
0f289c68 1777 $_ = '123';
de26e0cc 1778 is("$1", 'abc', "/g leads to unsafe match vars: $1");
1b474ee3
NC
1779
1780 fresh_perl_is(<<'EOP', ">abc<\n", {}, 'mention $&');
1781$&;
1782my $x;
1783($x='abc')=~/(abc)/g;
1784$x='123';
1785print ">$1<\n";
1786EOP
1787
1b474ee3
NC
1788 fresh_perl_is(<<'EOP', ">abc<\n", {}, 'no mention of $&');
1789my $x;
1790($x='abc')=~/(abc)/g;
1791$x='123';
1792print ">$1<\n";
1793EOP
e425a60b
YO
1794 }
1795
e425a60b 1796 {
de946258 1797 # Message-ID: <20070818091501.7eff4831@r2d2>
e425a60b
YO
1798 my $str = "";
1799 for (0 .. 5) {
1800 my @x;
1801 $str .= "@x"; # this should ALWAYS be the empty string
1802 'a' =~ /(a|)/;
1803 push @x, 1;
1804 }
de26e0cc 1805 is(length $str, 0, "Trie scope error, string should be empty");
e425a60b
YO
1806 $str = "";
1807 my @foo = ('a') x 5;
1808 for (@foo) {
1809 my @bar;
1810 $str .= "@bar";
1811 s/a|/push @bar, 1/e;
1812 }
de26e0cc 1813 is(length $str, 0, "Trie scope error, string should be empty");
e425a60b
YO
1814 }
1815
e425a60b 1816 {
e425a60b 1817# more TRIE/AHOCORASICK problems with mixed utf8 / latin-1 and case folding
0f289c68
YO
1818 for my $chr (160 .. 255) {
1819 my $chr_byte = chr($chr);
1820 my $chr_utf8 = chr($chr); utf8::upgrade($chr_utf8);
1821 my $rx = qr{$chr_byte|X}i;
1822 ok($chr_utf8 =~ $rx, "utf8/latin, codepoint $chr");
1823 }
e425a60b
YO
1824 }
1825
1826 {
e425a60b
YO
1827 our $a = 3; "" =~ /(??{ $a })/;
1828 our $b = $a;
de26e0cc 1829 is($b, $a, "Copy of scalar used for postponed subexpression");
e425a60b
YO
1830 }
1831
e425a60b 1832 {
e425a60b
YO
1833 our @ctl_n = ();
1834 our @plus = ();
1835 our $nested_tags;
1836 $nested_tags = qr{
1837 <
1838 (\w+)
1839 (?{
1840 push @ctl_n,$^N;
1841 push @plus,$+;
1842 })
1843 >
1844 (??{$nested_tags})*
1845 </\s* \w+ \s*>
1846 }x;
1847
1848 my $match = '<bla><blubb></blubb></bla>' =~ m/^$nested_tags$/;
1849 ok $match, 'nested construct matches';
de26e0cc
NC
1850 is("@ctl_n", "bla blubb", '$^N inside of (?{}) works as expected');
1851 is("@plus", "bla blubb", '$+ inside of (?{}) works as expected');
e425a60b
YO
1852 }
1853
e425a60b
YO
1854 SKIP: {
1855 # XXX: This set of tests is essentially broken, POSIX character classes
0f289c68 1856 # should not have differing definitions under Unicode.
e425a60b 1857 # There are property names for that.
ef237063 1858 skip "Tests assume ASCII", 4 unless $::IS_ASCII;
e425a60b
YO
1859
1860 my @notIsPunct = grep {/[[:punct:]]/ and not /\p{IsPunct}/}
1861 map {chr} 0x20 .. 0x7f;
1a3f15c1 1862 is(join ('', @notIsPunct), '$+<=>^`|~',
de26e0cc 1863 '[:punct:] disagrees with IsPunct on Symbols');
e425a60b
YO
1864
1865 my @isPrint = grep {not /[[:print:]]/ and /\p{IsPrint}/}
1866 map {chr} 0 .. 0x1f, 0x7f .. 0x9f;
de26e0cc
NC
1867 is(join ('', @isPrint), "",
1868 'IsPrint agrees with [:print:] on control characters');
e425a60b
YO
1869
1870 my @isPunct = grep {/[[:punct:]]/ != /\p{IsPunct}/}
1871 map {chr} 0x80 .. 0xff;
7620cb10 1872 is(join ('', @isPunct), "\xa1\xa7\xab\xb6\xb7\xbb\xbf", # ¡ « · » ¿
de26e0cc 1873 'IsPunct disagrees with [:punct:] outside ASCII');
e425a60b
YO
1874
1875 my @isPunctLatin1 = eval q {
3fc5553b 1876 grep {/[[:punct:]]/u != /\p{IsPunct}/} map {chr} 0x80 .. 0xff;
e425a60b
YO
1877 };
1878 skip "Eval failed ($@)", 1 if $@;
1879 skip "PERL_LEGACY_UNICODE_CHARCLASS_MAPPINGS set to 0", 1
1880 if !$ENV{PERL_TEST_LEGACY_POSIX_CC};
de26e0cc
NC
1881 is(join ('', @isPunctLatin1), '',
1882 'IsPunct agrees with [:punct:] with explicit Latin1');
0f289c68 1883 }
d1c771f5 1884
d1c771f5
B
1885 {
1886 # Tests for [#perl 71942]
1887 our $count_a;
1888 our $count_b;
1889
1890 my $c = 0;
1891 for my $re (
1892# [
1893# should match?,
1894# input string,
1895# re 1,
1896# re 2,
1897# expected values of count_a and count_b,
1898# ]
1899 [
1900 0,
1901 "xababz",
1902 qr/a+(?{$count_a++})b?(*COMMIT)(*FAIL)/,
1903 qr/a+(?{$count_b++})b?(*COMMIT)z/,
1904 1,
1905 ],
1906 [
1907 0,
1908 "xababz",
1909 qr/a+(?{$count_a++})b?(*COMMIT)\s*(*FAIL)/,
1910 qr/a+(?{$count_b++})b?(*COMMIT)\s*z/,
1911 1,
1912 ],
1913 [
1914 0,
1915 "xababz",
1916 qr/a+(?{$count_a++})(?:b|)?(*COMMIT)(*FAIL)/,
1917 qr/a+(?{$count_b++})(?:b|)?(*COMMIT)z/,
1918 1,
1919 ],
1920 [
1921 0,
1922 "xababz",
1923 qr/a+(?{$count_a++})b{0,6}(*COMMIT)(*FAIL)/,
1924 qr/a+(?{$count_b++})b{0,6}(*COMMIT)z/,
1925 1,
1926 ],
1927 [
1928 0,
1929 "xabcabcz",
1930 qr/a+(?{$count_a++})(bc){0,6}(*COMMIT)(*FAIL)/,
1931 qr/a+(?{$count_b++})(bc){0,6}(*COMMIT)z/,
1932 1,
1933 ],
1934 [
1935 0,
1936 "xabcabcz",
1937 qr/a+(?{$count_a++})(bc*){0,6}(*COMMIT)(*FAIL)/,
1938 qr/a+(?{$count_b++})(bc*){0,6}(*COMMIT)z/,
1939 1,
1940 ],
1941
1942
1943 [
1944 0,
1945 "aaaabtz",
1946 qr/a+(?{$count_a++})b?(*PRUNE)(*FAIL)/,
1947 qr/a+(?{$count_b++})b?(*PRUNE)z/,
1948 4,
1949 ],
1950 [
1951 0,
1952 "aaaabtz",
1953 qr/a+(?{$count_a++})b?(*PRUNE)\s*(*FAIL)/,
1954 qr/a+(?{$count_b++})b?(*PRUNE)\s*z/,
1955 4,
1956 ],
1957 [
1958 0,
1959 "aaaabtz",
1960 qr/a+(?{$count_a++})(?:b|)(*PRUNE)(*FAIL)/,
1961 qr/a+(?{$count_b++})(?:b|)(*PRUNE)z/,
1962 4,
1963 ],
1964 [
1965 0,
1966 "aaaabtz",
1967 qr/a+(?{$count_a++})b{0,6}(*PRUNE)(*FAIL)/,
1968 qr/a+(?{$count_b++})b{0,6}(*PRUNE)z/,
1969 4,
1970 ],
1971 [
1972 0,
1973 "aaaabctz",
1974 qr/a+(?{$count_a++})(bc){0,6}(*PRUNE)(*FAIL)/,
1975 qr/a+(?{$count_b++})(bc){0,6}(*PRUNE)z/,
1976 4,
1977 ],
1978 [
1979 0,
1980 "aaaabctz",
1981 qr/a+(?{$count_a++})(bc*){0,6}(*PRUNE)(*FAIL)/,
1982 qr/a+(?{$count_b++})(bc*){0,6}(*PRUNE)z/,
1983 4,
1984 ],
1985
1986 [
1987 0,
1988 "aaabaaab",
1989 qr/a+(?{$count_a++;})b?(*SKIP)(*FAIL)/,
1990 qr/a+(?{$count_b++;})b?(*SKIP)z/,
1991 2,
1992 ],
1993 [
1994 0,
1995 "aaabaaab",
1996 qr/a+(?{$count_a++;})b?(*SKIP)\s*(*FAIL)/,
1997 qr/a+(?{$count_b++;})b?(*SKIP)\s*z/,
1998 2,
1999 ],
2000 [
2001 0,
2002 "aaabaaab",
2003 qr/a+(?{$count_a++;})(?:b|)(*SKIP)(*FAIL)/,
2004 qr/a+(?{$count_b++;})(?:b|)(*SKIP)z/,
2005 2,
2006 ],
2007 [
2008 0,
2009 "aaabaaab",
2010 qr/a+(?{$count_a++;})b{0,6}(*SKIP)(*FAIL)/,
2011 qr/a+(?{$count_b++;})b{0,6}(*SKIP)z/,
2012 2,
2013 ],
2014 [
2015 0,
2016 "aaabcaaabc",
2017 qr/a+(?{$count_a++;})(bc){0,6}(*SKIP)(*FAIL)/,
2018 qr/a+(?{$count_b++;})(bc){0,6}(*SKIP)z/,
2019 2,
2020 ],
2021 [
2022 0,
2023 "aaabcaaabc",
2024 qr/a+(?{$count_a++;})(bc*){0,6}(*SKIP)(*FAIL)/,
2025 qr/a+(?{$count_b++;})(bc*){0,6}(*SKIP)z/,
2026 2,
2027 ],
2028
2029
2030 [
2031 0,
2032 "aaddbdaabyzc",
2033 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) (*FAIL) \s* c \1 /x,
2034 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) z \s* c \1 /x,
2035 4,
2036 ],
2037 [
2038 0,
2039 "aaddbdaabyzc",
2040 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) \s* (*FAIL) \s* c \1 /x,
2041 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) \s* z \s* c \1 /x,
2042 4,
2043 ],
2044 [
2045 0,
2046 "aaddbdaabyzc",
2047 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? (?:b|) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2048 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? (?:b|) (*SKIP:T1) z \s* c \1 /x,
2049 4,
2050 ],
2051 [
2052 0,
2053 "aaddbdaabyzc",
2054 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? b{0,6} (*SKIP:T1) (*FAIL) \s* c \1 /x,
2055 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? b{0,6} (*SKIP:T1) z \s* c \1 /x,
2056 4,
2057 ],
2058 [
2059 0,
2060 "aaddbcdaabcyzc",
2061 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? (bc){0,6} (*SKIP:T1) (*FAIL) \s* c \1 /x,
2062 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? (bc){0,6} (*SKIP:T1) z \s* c \1 /x,
2063 4,
2064 ],
2065 [
2066 0,
2067 "aaddbcdaabcyzc",
2068 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? (bc*){0,6} (*SKIP:T1) (*FAIL) \s* c \1 /x,
2069 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? (bc*){0,6} (*SKIP:T1) z \s* c \1 /x,
2070 4,
2071 ],
2072
2073
2074 [
2075 0,
2076 "aaaaddbdaabyzc",
2077 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2078 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2079 2,
2080 ],
2081 [
2082 0,
2083 "aaaaddbdaabyzc",
2084 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) \s* (*FAIL) \s* c \1 /x,
2085 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) \s* z \s* c \1 /x,
2086 2,
2087 ],
2088 [
2089 0,
2090 "aaaaddbdaabyzc",
2091 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? (?:b|) (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2092 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? (?:b|) (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2093 2,
2094 ],
2095 [
2096 0,
2097 "aaaaddbdaabyzc",
2098 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? b{0,6} (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2099 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? b{0,6} (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2100 2,
2101 ],
2102 [
2103 0,
2104 "aaaaddbcdaabcyzc",
2105 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? (bc){0,6} (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2106 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? (bc){0,6} (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2107 2,
2108 ],
2109 [
2110 0,
2111 "aaaaddbcdaabcyzc",
2112 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? (bc*){0,6} (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2113 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? (bc*){0,6} (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2114 2,
2115 ],
2116
2117
2118 [
2119 0,
2120 "AbcdCBefgBhiBqz",
2121 qr/(A (.*) (?{ $count_a++ }) C? (*THEN) | A D) (*FAIL)/x,
2122 qr/(A (.*) (?{ $count_b++ }) C? (*THEN) | A D) z/x,
2123 1,
2124 ],
2125 [
2126 0,
2127 "AbcdCBefgBhiBqz",
2128 qr/(A (.*) (?{ $count_a++ }) C? (*THEN) | A D) \s* (*FAIL)/x,
2129 qr/(A (.*) (?{ $count_b++ }) C? (*THEN) | A D) \s* z/x,
2130 1,
2131 ],
2132 [
2133 0,
2134 "AbcdCBefgBhiBqz",
2135 qr/(A (.*) (?{ $count_a++ }) (?:C|) (*THEN) | A D) (*FAIL)/x,
2136 qr/(A (.*) (?{ $count_b++ }) (?:C|) (*THEN) | A D) z/x,
2137 1,
2138 ],
2139 [
2140 0,
2141 "AbcdCBefgBhiBqz",
2142 qr/(A (.*) (?{ $count_a++ }) C{0,6} (*THEN) | A D) (*FAIL)/x,
2143 qr/(A (.*) (?{ $count_b++ }) C{0,6} (*THEN) | A D) z/x,
2144 1,
2145 ],
2146 [
2147 0,
2148 "AbcdCEBefgBhiBqz",
2149 qr/(A (.*) (?{ $count_a++ }) (CE){0,6} (*THEN) | A D) (*FAIL)/x,
2150 qr/(A (.*) (?{ $count_b++ }) (CE){0,6} (*THEN) | A D) z/x,
2151 1,
2152 ],
2153 [
2154 0,
2155 "AbcdCBefgBhiBqz",
2156 qr/(A (.*) (?{ $count_a++ }) (CE*){0,6} (*THEN) | A D) (*FAIL)/x,
2157 qr/(A (.*) (?{ $count_b++ }) (CE*){0,6} (*THEN) | A D) z/x,
2158 1,
2159 ],
2160 ) {
2161 $c++;
2162 $count_a = 0;
2163 $count_b = 0;
2164
2165 my $match_a = ($re->[1] =~ $re->[2]) || 0;
2166 my $match_b = ($re->[1] =~ $re->[3]) || 0;
2167
de26e0cc
NC
2168 is($match_a, $re->[0], "match a " . ($re->[0] ? "succeeded" : "failed") . " ($c)");
2169 is($match_b, $re->[0], "match b " . ($re->[0] ? "succeeded" : "failed") . " ($c)");
2170 is($count_a, $re->[4], "count a ($c)");
2171 is($count_b, $re->[4], "count b ($c)");
d1c771f5
B
2172 }
2173 }
e425a60b 2174
b57e4118
KW
2175 { # Bleadperl v5.13.8-292-gf56b639 breaks NEZUMI/Unicode-LineBreak-1.011
2176 # \xdf in lookbehind failed to compile as is multi-char fold
14358a41
NC
2177 my $message = "Lookbehind with \\xdf matchable compiles";
2178 my $r = eval 'qr{
b57e4118
KW
2179 (?u: (?<=^url:) |
2180 (?<=[/]) (?=[^/]) |
2181 (?<=[^-.]) (?=[-~.,_?\#%=&]) |
2182 (?<=[=&]) (?=.)
14358a41
NC
2183 )}iox';
2184 is($@, '', $message);
bbce3ca6 2185 object_ok($r, 'Regexp', $message);
b57e4118
KW
2186 }
2187
84193928
KW
2188 # RT #82610
2189 ok 'foo/file.fob' =~ m,^(?=[^\.])[^/]*/(?=[^\.])[^/]*\.fo[^/]$,;
2190
295c2f7d
KW
2191 { # This was failing unless an explicit /d was added
2192 my $p = qr/[\xE0_]/i;
2193 utf8::upgrade($p);
2194 like("\xC0", $p, "Verify \"\\xC0\" =~ /[\\xE0_]/i; pattern in utf8");
2195 }
2196
a40630bf
YO
2197 ok "x" =~ /\A(?>(?:(?:)A|B|C?x))\z/,
2198 "Check TRIE does not overwrite EXACT following NOTHING at start - RT #111842";
c221a219 2199
26faadbd
KW
2200 {
2201 my $single = ":";
2202 my $upper = "\x{390}"; # Fold is 3 chars.
2203 my $multi = CORE::fc($upper);
2204
2205 my $failed = 0;
2206
2207 # Try forcing a node to be split, with a multi-char fold at the
2208 # boundary
2209 for my $repeat (1 .. 300) {
2210 my $string = $single x $repeat;
2211 my $lhs = $string . $upper;
2212 if ($lhs !~ m/$string$multi/i) {
2213 $failed = $repeat;
2214 last;
2215 }
2216 }
2217 ok(! $failed, "Matched multi-char fold across EXACTFish node boundaries; if failed, was at count $failed");
2218
b9c48b5b
KW
2219 $failed = 0;
2220 for my $repeat (1 .. 300) {
2221 my $string = $single x $repeat;
2222 my $lhs = $string . "\N{LATIN SMALL LIGATURE FFI}";
2223 if ($lhs !~ m/${string}ff\N{LATIN SMALL LETTER I}/i) {
2224 $failed = $repeat;
2225 last;
2226 }
2227 }
2228 ok(! $failed, "Matched multi-char fold across EXACTFish node boundaries; if failed, was at count $failed");
2229
2230 $failed = 0;
2231 for my $repeat (1 .. 300) {
2232 my $string = $single x $repeat;
2233 my $lhs = $string . "\N{LATIN SMALL LIGATURE FFL}";
2234 if ($lhs !~ m/${string}ff\N{U+6c}/i) {
2235 $failed = $repeat;
2236 last;
2237 }
2238 }
2239 ok(! $failed, "Matched multi-char fold across EXACTFish node boundaries; if failed, was at count $failed");
88b3a463
KW
2240
2241 # This tests that under /d matching that an 'ss' split across two
2242 # parts of a node doesn't end up turning into something that matches
2243 # \xDF unless it is in utf8.
2244 $failed = 0;
2245 $single = 'a'; # Is non-terminal multi-char fold char
2246 for my $repeat (1 .. 300) {
2247 my $string = $single x $repeat;
2248 my $lhs = "$string\N{LATIN SMALL LETTER SHARP S}";
2249 utf8::downgrade($lhs);
2250 $string .= "s";
2251 if ($lhs =~ m/${string}s/di) {
2252 $failed = $repeat;
2253 last;
2254 }
2255 }
2256 ok(! $failed, "Matched multi-char fold 'ss' across EXACTF node boundaries; if failed, was at count $failed");
26faadbd
KW
2257 }
2258
2b233a8f 2259 {
2b233a8f
KW
2260 fresh_perl_is('print eval "\"\x{101}\" =~ /[[:lower:]]/", "\n"; print eval "\"\x{100}\" =~ /[[:lower:]]/i", "\n";',
2261 "1\n1", # Both re's should match
20e5bab4 2262 {},
2b233a8f
KW
2263 "get [:lower:] swash in first eval; test under /i in second");
2264 }
2265
c5de0829
JK
2266 {
2267 #' RT #119075
fd2268bc 2268 no warnings 'regexp'; # Silence "has useless greediness modifier"
c5de0829
JK
2269 local $@;
2270 eval { /a{0}?/; };
2271 ok(! $@,
2272 "PCRE regression test: No 'Quantifier follows nothing in regex' warning");
2273
2274 }
2275
709d08c2
KW
2276 {
2277 unlike("\xB5", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2278 like("\xB6", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2279 unlike("\xB7", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2280 like("\xB5", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2281 unlike("\xB6", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2282 like("\xB7", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2283
2284 unlike("_\xB5", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2285 like("_\xB6", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2286 unlike("_\xB7", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2287 like("_\xB5", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2288 unlike("_\xB6", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2289 like("_\xB7", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2290 }
2291
2292 # These are defined later, so won't be known at regex compile time above
2293 sub IsMyRuntimeProperty {
2294 return "B6\n";
2295 }
2296
2297 sub IsntMyRuntimeProperty {
2298 return "!B6\n";
2299 }
2300
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KW
2301 { # [perl 121777]
2302 my $regex;
2303 { package Some;
2304 # define a Unicode propertyIs_q
2305 sub Is_q
2306 {
2307 sprintf '%x', ord 'q'
2308 }
2309 $regex = qr/\p{Is_q}/;
2310
2311 # If we uncomment the following line, prior to the patch that
de68ac66
KW
2312 # fixed this, everything would work because we would have expanded
2313 # the property by the time the regex in the 'like' below got
2314 # compiled.
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KW
2315 #'q' =~ $regex;
2316 }
2317
2318 like('q', $regex, 'User-defined property matches outside package');
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KW
2319
2320 package Some {
2321 main::like('abcq', qr/abc$regex/, 'Run-time compiled in-package user-defined property matches');
2322 }
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KW
2323 }
2324
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KW
2325 { # From Lingua::Stem::UniNE; no ticket filed but related to #121778
2326 use utf8;
2327 my $word = 'рабта';
2328 $word =~ s{ (?:
2329 ия # definite articles for nouns:
2330 | ът # ∙ masculine
2331 | та # ∙ feminine
2332 | то # ∙ neutral
2333 | те # ∙ plural
2334 ) $ }{}x;
2335 is($word, 'раб', "Handles UTF8 trie correctly");
2336 }
2337
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YO
2338 #
2339 # Keep the following tests last -- they may crash perl
2340 #
2341 print "# Tests that follow may crash perl\n";
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YO
2342 {
2343 eval '/\k/';
2344 ok $@ =~ /\QSequence \k... not terminated in regex;\E/,
2345 'Lone \k not allowed';
2346 }
2347
e425a60b 2348 {
de946258 2349 my $message = "Substitution with lookahead (possible segv)";
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YO
2350 $_ = "ns1ns1ns1";
2351 s/ns(?=\d)/ns_/g;
de946258 2352 is($_, "ns_1ns_1ns_1", $message);
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YO
2353 $_ = "ns1";
2354 s/ns(?=\d)/ns_/;
de946258 2355 is($_, "ns_1", $message);
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YO
2356 $_ = "123";
2357 s/(?=\d+)|(?<=\d)/!Bang!/g;
de946258 2358 is($_, "!Bang!1!Bang!2!Bang!3!Bang!", $message);
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YO
2359 }
2360
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2361 {
2362 # Earlier versions of Perl said this was fatal.
de946258 2363 my $message = "U+0FFFF shouldn't crash the regex engine";
6182169b
KW
2364 no warnings 'utf8';
2365 my $a = eval "chr(65535)";
2366 use warnings;
2367 my $warning_message;
2368 local $SIG{__WARN__} = sub { $warning_message = $_[0] };
2369 eval $a =~ /[a-z]/;
de946258 2370 ok(1, $message); # If it didn't crash, it worked.
6182169b 2371 }
b57e4118 2372
06345901
NC
2373 TODO: { # Was looping
2374 todo_skip('Triggers thread clone SEGV. See #86550')
2375 if $::running_as_thread && $::running_as_thread;
478c6b74 2376 watchdog(10); # Use a bigger value for busy systems
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2377 like("\x{00DF}", qr/[\x{1E9E}_]*/i, "\"\\x{00DF}\" =~ /[\\x{1E9E}_]*/i was looping");
2378 }
2379
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2380 { # Bug #90536, caused failed assertion
2381 unlike("s\N{U+DF}", qr/^\x{00DF}/i, "\"s\\N{U+DF}\", qr/^\\x{00DF}/i");
2382 }
2383
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2384 # User-defined Unicode properties to match above-Unicode code points
2385 sub Is_32_Bit_Super { return "110000\tFFFFFFFF\n" }
2386 sub Is_Portable_Super { return '!utf8::Any' } # Matches beyond 32 bits
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KW
2387
2388 { # Assertion was failing on on 64-bit platforms; just didn't work on 32.
2389 no warnings qw(non_unicode portable);
2390 use Config;
2391
2392 # We use 'ok' instead of 'like' because the warnings are lexically
2393 # scoped, and want to turn them off, so have to do the match in this
2394 # scope
84ea5ef6 2395 if ($Config{uvsize} < 8) {
361ee0fe 2396 ok(chr(0xFFFF_FFFE) =~ /\p{Is_32_Bit_Super}/,
84ea5ef6 2397 "chr(0xFFFF_FFFE) can match a Unicode property");
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KW
2398 ok(chr(0xFFFF_FFFF) =~ /\p{Is_32_Bit_Super}/,
2399 "chr(0xFFFF_FFFF) can match a Unicode property");
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KW
2400 my $p = qr/^[\x{FFFF_FFFF}]$/;
2401 ok(chr(0xFFFF_FFFF) =~ $p,
2402 "chr(0xFFFF_FFFF) can match itself in a [class]");
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KW
2403 ok(chr(0xFFFF_FFFF) =~ $p, # Tests any caching
2404 "chr(0xFFFF_FFFF) can match itself in a [class] subsequently");
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KW
2405 }
2406 else {
2407 no warnings 'overflow';
361ee0fe 2408 ok(chr(0xFFFF_FFFF_FFFF_FFFE) =~ qr/\p{Is_Portable_Super}/,
84ea5ef6 2409 "chr(0xFFFF_FFFF_FFFF_FFFE) can match a Unicode property");
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KW
2410 ok(chr(0xFFFF_FFFF_FFFF_FFFF) =~ qr/^\p{Is_Portable_Super}$/,
2411 "chr(0xFFFF_FFFF_FFFF_FFFF) can match a Unicode property");
361ee0fe 2412
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KW
2413 my $p = qr/^[\x{FFFF_FFFF_FFFF_FFFF}]$/;
2414 ok(chr(0xFFFF_FFFF_FFFF_FFFF) =~ $p,
2415 "chr(0xFFFF_FFFF_FFFF_FFFF) can match itself in a [class]");
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KW
2416 ok(chr(0xFFFF_FFFF_FFFF_FFFF) =~ $p, # Tests any caching
2417 "chr(0xFFFF_FFFF_FFFF_FFFF) can match itself in a [class] subsequently");
01c5845a 2418
361ee0fe
KW
2419 # This test is because something was declared as 32 bits, but
2420 # should have been cast to 64; only a problem where
2421 # sizeof(STRLEN) != sizeof(UV)
2422 ok(chr(0xFFFF_FFFF_FFFF_FFFE) !~ qr/\p{Is_32_Bit_Super}/, "chr(0xFFFF_FFFF_FFFF_FFFE) shouldn't match a range ending in 0xFFFF_FFFF");
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2423 }
2424 }
2425
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KW
2426 { # [perl #112530], the code below caused a panic
2427 sub InFoo { "a\tb\n9\ta\n" }
2428 like("\n", qr/\p{InFoo}/,
2429 "Overlapping ranges in user-defined properties");
2430 }
2431
2e3a23da
KW
2432 { # Regexp:Grammars was broken:
2433 # http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2013-06/msg01290.html
2434 fresh_perl_like('use warnings; "abc" =~ qr{(?&foo){0}abc(?<foo>)}',
2435 'Quantifier unexpected on zero-length expression',
20e5bab4 2436 {},
2e3a23da
KW
2437 'No segfault on qr{(?&foo){0}abc(?<foo>)}');
2438 }
2439
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2440 # !!! NOTE that tests that aren't at all likely to crash perl should go
2441 # a ways above, above these last ones.
f4554ed5
NC
2442
2443 done_testing();
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YO
2444} # End of sub run_tests
2445
24461;