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regcomp.c: Rmv temporary variable
[perl5.git] / t / re / pat_advanced.t
CommitLineData
e425a60b
YO		 1#!./perl
2#
c5de0829 3# This is a home for regular expression tests that do not fit into
e425a60b
YO		 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
e425a60b
YO		 16
17BEGIN {
18 chdir 't' if -d 't';
9d45b377 19 @INC = ('../lib','.');
6f4e0180 20 require './test.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;
e425a60b
YO		 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);
e425a60b
YO		 43 }
44 else {
45 SKIP: {
c1741bad 46 ok 0, "Unexpected platform", "ord ('A') =" . ord 'A';
e425a60b
YO		 47 skip "Unexpected platform";
48 }
49 }
de946258 50 is($4, "b", $message);
e425a60b
YO		 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);
e425a60b
YO		 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);
e425a60b
YO		 72 }
73 else {
c1741bad 74 ok 0, "Unexpected platform", "ord ('A') = " . ord 'A';
e425a60b
YO		 75 }
76 }
77
e425a60b
YO		 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');
e425a60b
YO		 83 }
84
e425a60b
YO		 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]/';
e425a60b
YO		 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]/');
e425a60b
YO		 104 }
105
e425a60b
YO		 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';
e425a60b
YO		 113
114 my @x = ("stra\337e 138", "stra\337e 138");
115 for (@x) {
de946258
NC		 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);
e425a60b
YO		 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
NC		 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);
e425a60b
YO		 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);
e425a60b
YO		 149 }
150
e425a60b
YO		 151 {
152 my $x = "\x{10FFFD}";
153 $x =~ s/(.)/$1/g;
154 ok ord($x) == 0x10FFFD && length($x) == 1, "From Robin Houston";
155 }
156
e425a60b
YO		 157 {
158 my %d = (
159 "7f" => [0, 0, 0],
160 "80" => [1, 1, 0],
161 "ff" => [1, 1, 0],
162 "100" => [0, 1, 1],
163 );
a2d248f9 164
e425a60b 165 while (my ($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], $message);
e425a60b
YO		 172 }
173 }
174
e425a60b
YO		 175 {
176 # From Japhy
e4e5d8ba 177 foreach (qw(c g o)) {
4d18b353
NC		 178 warning_like(sub {'' =~ "(?$_)"}, qr/^Useless \(\?$_\)/);
179 warning_like(sub {'' =~ "(?-$_)"}, qr/^Useless \(\?-$_\)/);
e4e5d8ba 180 }
e425a60b
YO		 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 }
e425a60b
YO		 193 }
194
e425a60b 195 {
de946258 196 my $message = "/x tests";
e425a60b 197 $_ = "foo";
14358a41 198 foreach my $pat (<<" --", <<" --") {
e425a60b
YO		 199 /f
200 o\r
201 o
202 \$
203 /x
204 --
e425a60b
YO		 205 /f
206 o
207 o
208 \$\r
209 /x
210 --
14358a41
NC		 211 is(eval $pat, 1, $message);
212 is($@, '', $message);
213 }
e425a60b
YO		 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);
e425a60b
YO		 221 }
222
e425a60b
YO		 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);}
e425a60b
YO		 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');
e425a60b
YO		 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);
e425a60b
YO		 256
257 }
258
e425a60b
YO		 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:]]';
e425a60b
YO		 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), $message);
e425a60b
YO		 269
270 ($x = $AllBytes) =~ s/[^[:cntrl:]]//g;
de946258 271 is($x, (join "", map {chr} 0x00 .. 0x1F, 0x7F), $message);
e425a60b
YO		 272 }
273
e425a60b
YO		 274 {
275 # With /s modifier UTF8 chars were interpreted as bytes
de946258 276 my $message = "UTF-8 chars aren't bytes";
e425a60b
YO		 277 my $a = "Hello \x{263A} World";
278 my @a = ($a =~ /./gs);
de946258 279 is($#a, 12, $message);
e425a60b
YO		 280 }
281
e425a60b 282 {
de946258 283 my $message = '. matches \n with /s';
e425a60b
YO		 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
YO		 296 }
297
e425a60b 298 {
e425a60b
YO		 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
YO		 393 {
394 # High bit bug -- japhy
395 my $x = "ab\200d";
396 ok $x =~ /.*?\200/, "High bit fine";
397 }
398
e425a60b
YO		 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
YO		 428 }
429
e425a60b
YO		 430 {
431 use charnames ':full';
de946258 432 my $message = "Folding 'LATIN LETTER A WITH GRAVE'";
e425a60b
YO		 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}
1263 ok "xaaay" !~ /xa{3\,4}y/, '\, in a pattern';
1264 ok "xa{3,4}y" =~ /xa{3\,4}y/, '\, in a pattern';
1265
1266 # \c\ followed by _
1267 ok "x\c_y" !~ /x\c\_y/, '\_ in a pattern';
1268 ok "x\c\_y" =~ /x\c\_y/, '\_ in a pattern';
1269
1270 # \c\ followed by other characters
1271 for my $c ("z", "\0", "!", chr(254), chr(256)) {
1272 my $targ = "a\034$c";
1273 my $reg = "a\\c\\$c";
1274 ok eval ("qq/$targ/ =~ /$reg/"), "\\c\\ in pattern";
1275 }
1276 }
1277
e425a60b
YO		 1278 { # Test the (*PRUNE) pattern
1279 our $count = 0;
1280 'aaab' =~ /a+b?(?{$count++})(*FAIL)/;
de26e0cc 1281 is($count, 9, "Expect 9 for no (*PRUNE)");
e425a60b
YO		 1282 $count = 0;
1283 'aaab' =~ /a+b?(*PRUNE)(?{$count++})(*FAIL)/;
de26e0cc 1284 is($count, 3, "Expect 3 with (*PRUNE)");
e425a60b
YO		 1285 local $_ = 'aaab';
1286 $count = 0;
1287 1 while /.(*PRUNE)(?{$count++})(*FAIL)/g;
de26e0cc 1288 is($count, 4, "/.(*PRUNE)/");
e425a60b
YO		 1289 $count = 0;
1290 'aaab' =~ /a+b?(??{'(*PRUNE)'})(?{$count++})(*FAIL)/;
de26e0cc 1291 is($count, 3, "Expect 3 with (*PRUNE)");
e425a60b
YO		 1292 local $_ = 'aaab';
1293 $count = 0;
1294 1 while /.(??{'(*PRUNE)'})(?{$count++})(*FAIL)/g;
de26e0cc 1295 is($count, 4, "/.(*PRUNE)/");
e425a60b
YO		 1296 }
1297
e425a60b
YO		 1298 { # Test the (*SKIP) pattern
1299 our $count = 0;
1300 'aaab' =~ /a+b?(*SKIP)(?{$count++})(*FAIL)/;
de26e0cc 1301 is($count, 1, "Expect 1 with (*SKIP)");
e425a60b
YO		 1302 local $_ = 'aaab';
1303 $count = 0;
1304 1 while /.(*SKIP)(?{$count++})(*FAIL)/g;
de26e0cc 1305 is($count, 4, "/.(*SKIP)/");
e425a60b
YO		 1306 $_ = 'aaabaaab';
1307 $count = 0;
1308 our @res = ();
1309 1 while /(a+b?)(*SKIP)(?{$count++; push @res,$1})(*FAIL)/g;
de26e0cc
NC		 1310 is($count, 2, "Expect 2 with (*SKIP)");
1311 is("@res", "aaab aaab", "Adjacent (*SKIP) works as expected");
e425a60b
YO		 1312 }
1313
e425a60b
YO		 1314 { # Test the (*SKIP) pattern
1315 our $count = 0;
1316 'aaab' =~ /a+b?(*MARK:foo)(*SKIP)(?{$count++})(*FAIL)/;
de26e0cc 1317 is($count, 1, "Expect 1 with (*SKIP)");
e425a60b
YO		 1318 local $_ = 'aaab';
1319 $count = 0;
1320 1 while /.(*MARK:foo)(*SKIP)(?{$count++})(*FAIL)/g;
de26e0cc 1321 is($count, 4, "/.(*SKIP)/");
e425a60b
YO		 1322 $_ = 'aaabaaab';
1323 $count = 0;
1324 our @res = ();
1325 1 while /(a+b?)(*MARK:foo)(*SKIP)(?{$count++; push @res,$1})(*FAIL)/g;
de26e0cc
NC		 1326 is($count, 2, "Expect 2 with (*SKIP)");
1327 is("@res", "aaab aaab", "Adjacent (*SKIP) works as expected");
e425a60b
YO		 1328 }
1329
e425a60b
YO		 1330 { # Test the (*SKIP) pattern
1331 our $count = 0;
1332 'aaab' =~ /a*(*MARK:a)b?(*MARK:b)(*SKIP:a)(?{$count++})(*FAIL)/;
de26e0cc 1333 is($count, 3, "Expect 3 with *MARK:a)b?(*MARK:b)(*SKIP:a)");
e425a60b
YO		 1334 local $_ = 'aaabaaab';
1335 $count = 0;
1336 our @res = ();
1337 1 while
1338 /(a*(*MARK:a)b?)(*MARK:x)(*SKIP:a)(?{$count++; push @res,$1})(*FAIL)/g;
de26e0cc
NC		 1339 is($count, 5, "Expect 5 with (*MARK:a)b?)(*MARK:x)(*SKIP:a)");
1340 is("@res", "aaab b aaab b ",
1341 "Adjacent (*MARK:a)b?)(*MARK:x)(*SKIP:a) works as expected");
e425a60b
YO		 1342 }
1343
e425a60b
YO		 1344 { # Test the (*COMMIT) pattern
1345 our $count = 0;
1346 'aaabaaab' =~ /a+b?(*COMMIT)(?{$count++})(*FAIL)/;
de26e0cc 1347 is($count, 1, "Expect 1 with (*COMMIT)");
e425a60b
YO		 1348 local $_ = 'aaab';
1349 $count = 0;
1350 1 while /.(*COMMIT)(?{$count++})(*FAIL)/g;
de26e0cc 1351 is($count, 1, "/.(*COMMIT)/");
e425a60b
YO		 1352 $_ = 'aaabaaab';
1353 $count = 0;
1354 our @res = ();
1355 1 while /(a+b?)(*COMMIT)(?{$count++; push @res,$1})(*FAIL)/g;
de26e0cc
NC		 1356 is($count, 1, "Expect 1 with (*COMMIT)");
1357 is("@res", "aaab", "Adjacent (*COMMIT) works as expected");
3542935d
DM		 1358
1359 ok("1\n2a\n" !~ /^\d+(*COMMIT)\w+/m, "COMMIT and anchors");
e425a60b
YO		 1360 }
1361
e425a60b
YO		 1362 {
1363 # Test named commits and the $REGERROR var
1364 our $REGERROR;
1365 for my $name ('', ':foo') {
1366 for my $pat ("(*PRUNE$name)",
1367 ($name ? "(*MARK$name)" : "") . "(*SKIP$name)",
0f289c68 1368 "(*COMMIT$name)") {
e425a60b
YO		 1369 for my $suffix ('(*FAIL)', '') {
1370 'aaaab' =~ /a+b$pat$suffix/;
de26e0cc 1371 is($REGERROR,
e425a60b 1372 ($suffix ? ($name ? 'foo' : "1") : ""),
de26e0cc 1373 "Test $pat and \$REGERROR $suffix");
e425a60b
YO		 1374 }
1375 }
1376 }
1377 }
1378
e425a60b
YO		 1379 {
1380 # Test named commits and the $REGERROR var
1381 package Fnorble;
1382 our $REGERROR;
1383 for my $name ('', ':foo') {
1384 for my $pat ("(*PRUNE$name)",
1385 ($name ? "(*MARK$name)" : "") . "(*SKIP$name)",
0f289c68 1386 "(*COMMIT$name)") {
e425a60b
YO		 1387 for my $suffix ('(*FAIL)','') {
1388 'aaaab' =~ /a+b$pat$suffix/;
de26e0cc 1389 ::is($REGERROR,
e425a60b 1390 ($suffix ? ($name ? 'foo' : "1") : ""),
de26e0cc 1391 "Test $pat and \$REGERROR $suffix");
e425a60b
YO		 1392 }
1393 }
0f289c68
YO		 1394 }
1395 }
e425a60b 1396
e425a60b
YO		 1397 {
1398 # Test named commits and the $REGERROR var
de946258 1399 my $message = '$REGERROR';
e425a60b
YO		 1400 our $REGERROR;
1401 for my $word (qw (bar baz bop)) {
1402 $REGERROR = "";
1403 "aaaaa$word" =~
1404 /a+(?:bar(*COMMIT:bar)|baz(*COMMIT:baz)|bop(*COMMIT:bop))(*FAIL)/;
de946258 1405 is($REGERROR, $word, $message);
0f289c68 1406 }
e425a60b
YO		 1407 }
1408
e425a60b
YO		 1409 {
1410 #Mindnumbingly simple test of (*THEN)
1411 for ("ABC","BAX") {
1412 ok /A (*THEN) X | B (*THEN) C/x, "Simple (*THEN) test";
1413 }
1414 }
1415
e425a60b 1416 {
de946258 1417 my $message = "Relative Recursion";
e425a60b
YO		 1418 my $parens = qr/(\((?:[^()]++|(?-1))*+\))/;
1419 local $_ = 'foo((2*3)+4-3) + bar(2*(3+4)-1*(2-3))';
1420 my ($all, $one, $two) = ('', '', '');
de946258
NC		 1421 ok(m/foo $parens \s* \+ \s* bar $parens/x, $message);
1422 is($1, '((2*3)+4-3)', $message);
1423 is($2, '(2*(3+4)-1*(2-3))', $message);
1424 is($&, 'foo((2*3)+4-3) + bar(2*(3+4)-1*(2-3))', $message);
1425 is($&, $_, $message);
e425a60b
YO		 1426 }
1427
1428 {
1429 my $spaces=" ";
1430 local $_ = join 'bar', $spaces, $spaces;
1431 our $count = 0;
1432 s/(?>\s+bar)(?{$count++})//g;
de26e0cc
NC		 1433 is($_, $spaces, "SUSPEND final string");
1434 is($count, 1, "Optimiser should have prevented more than one match");
e425a60b
YO		 1435 }
1436
e425a60b
YO		 1437 {
1438 # From Message-ID: <877ixs6oa6.fsf@k75.linux.bogus>
1439 my $dow_name = "nada";
1440 my $parser = "(\$dow_name) = \$time_string =~ /(D\x{e9}\\ " .
1441 "C\x{e9}adaoin|D\x{e9}\\ Sathairn|\\w+|\x{100})/";
1442 my $time_string = "D\x{e9} C\x{e9}adaoin";
1443 eval $parser;
1444 ok !$@, "Test Eval worked";
de26e0cc 1445 is($dow_name, $time_string, "UTF-8 trie common prefix extraction");
e425a60b
YO		 1446 }
1447
e425a60b
YO		 1448 {
1449 my $v;
1450 ($v = 'bar') =~ /(\w+)/g;
1451 $v = 'foo';
de26e0cc
NC		 1452 is("$1", 'bar',
1453 '$1 is safe after /g - may fail due to specialized config in pp_hot.c');
e425a60b
YO		 1454 }
1455
e425a60b 1456 {
de946258 1457 my $message = "http://nntp.perl.org/group/perl.perl5.porters/118663";
e425a60b 1458 my $qr_barR1 = qr/(bar)\g-1/;
de946258
NC		 1459 like("foobarbarxyz", $qr_barR1, $message);
1460 like("foobarbarxyz", qr/foo${qr_barR1}xyz/, $message);
1461 like("foobarbarxyz", qr/(foo)${qr_barR1}xyz/, $message);
1462 like("foobarbarxyz", qr/(foo)(bar)\g{-1}xyz/, $message);
1463 like("foobarbarxyz", qr/(foo${qr_barR1})xyz/, $message);
1464 like("foobarbarxyz", qr/(foo(bar)\g{-1})xyz/, $message);
0f289c68 1465 }
e425a60b 1466
e425a60b 1467 {
de946258 1468 my $message = '$REGMARK';
e425a60b
YO		 1469 our @r = ();
1470 our ($REGMARK, $REGERROR);
de946258
NC		 1471 like('foofoo', qr/foo (*MARK:foo) (?{push @r,$REGMARK}) /x, $message);
1472 is("@r","foo", $message);
1473 is($REGMARK, "foo", $message);
1474 unlike('foofoo', qr/foo (*MARK:foo) (*FAIL) /x, $message);
1475 is($REGMARK, '', $message);
1476 is($REGERROR, 'foo', $message);
e425a60b
YO		 1477 }
1478
e425a60b 1479 {
de946258 1480 my $message = '\K test';
e425a60b
YO		 1481 my $x;
1482 $x = "abc.def.ghi.jkl";
1483 $x =~ s/.*\K\..*//;
de946258 1484 is($x, "abc.def.ghi", $message);
0f289c68 1485
e425a60b
YO		 1486 $x = "one two three four";
1487 $x =~ s/o+ \Kthree//g;
de946258 1488 is($x, "one two four", $message);
0f289c68 1489
e425a60b
YO		 1490 $x = "abcde";
1491 $x =~ s/(.)\K/$1/g;
de946258 1492 is($x, "aabbccddee", $message);
e425a60b
YO		 1493 }
1494
e425a60b
YO		 1495 {
1496 sub kt {
1497 return '4' if $_[0] eq '09028623';
1498 }
1499 # Nested EVAL using PL_curpm (via $1 or friends)
1500 my $re;
1501 our $grabit = qr/ ([0-6][0-9]{7}) (??{ kt $1 }) [890] /x;
1502 $re = qr/^ ( (??{ $grabit }) ) $ /x;
1503 my @res = '0902862349' =~ $re;
de26e0cc
NC		 1504 is(join ("-", @res), "0902862349",
1505 'PL_curpm is set properly on nested eval');
e425a60b
YO		 1506
1507 our $qr = qr/ (o) (??{ $1 }) /x;
1508 ok 'boob'=~/( b (??{ $qr }) b )/x && 1, "PL_curpm, nested eval";
1509 }
1510
e425a60b
YO		 1511 {
1512 use charnames ":full";
1513 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Alphabetic}/, "I =~ Alphabetic";
1514 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Uppercase}/, "I =~ Uppercase";
1515 ok "\N{ROMAN NUMERAL ONE}" !~ /\p{Lowercase}/, "I !~ Lowercase";
1516 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{IDStart}/, "I =~ ID_Start";
1517 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{IDContinue}/, "I =~ ID_Continue";
1518 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Alphabetic}/, "i =~ Alphabetic";
1519 ok "\N{SMALL ROMAN NUMERAL ONE}" !~ /\p{Uppercase}/, "i !~ Uppercase";
0ab1ff8e
KW		 1520 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Uppercase}/i, "i =~ Uppercase under /i";
1521 ok "\N{SMALL ROMAN NUMERAL ONE}" !~ /\p{Titlecase}/, "i !~ Titlecase";
1522 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Titlecase}/i, "i =~ Titlecase under /i";
5895685f
NC		 1523 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Lowercase}/i, "I =~ Lowercase under /i";
1524
e425a60b
YO		 1525 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Lowercase}/, "i =~ Lowercase";
1526 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{IDStart}/, "i =~ ID_Start";
1527 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{IDContinue}/, "i =~ ID_Continue"
1528 }
1529
0ab1ff8e
KW		 1530 { # More checking that /i works on the few properties that it makes a
1531 # difference. Uppercase, Lowercase, and Titlecase were done in the
1532 # block above
1533 ok "A" =~ /\p{PosixUpper}/, "A =~ PosixUpper";
1534 ok "A" =~ /\p{PosixUpper}/i, "A =~ PosixUpper under /i";
1535 ok "A" !~ /\p{PosixLower}/, "A !~ PosixLower";
1536 ok "A" =~ /\p{PosixLower}/i, "A =~ PosixLower under /i";
1537 ok "a" !~ /\p{PosixUpper}/, "a !~ PosixUpper";
1538 ok "a" =~ /\p{PosixUpper}/i, "a =~ PosixUpper under /i";
1539 ok "a" =~ /\p{PosixLower}/, "a =~ PosixLower";
1540 ok "a" =~ /\p{PosixLower}/i, "a =~ PosixLower under /i";
1541
1542 ok "\xC0" =~ /\p{XPosixUpper}/, "\\xC0 =~ XPosixUpper";
1543 ok "\xC0" =~ /\p{XPosixUpper}/i, "\\xC0 =~ XPosixUpper under /i";
1544 ok "\xC0" !~ /\p{XPosixLower}/, "\\xC0 !~ XPosixLower";
1545 ok "\xC0" =~ /\p{XPosixLower}/i, "\\xC0 =~ XPosixLower under /i";
1546 ok "\xE0" !~ /\p{XPosixUpper}/, "\\xE0 !~ XPosixUpper";
1547 ok "\xE0" =~ /\p{XPosixUpper}/i, "\\xE0 =~ XPosixUpper under /i";
1548 ok "\xE0" =~ /\p{XPosixLower}/, "\\xE0 =~ XPosixLower";
1549 ok "\xE0" =~ /\p{XPosixLower}/i, "\\xE0 =~ XPosixLower under /i";
1550
1551 ok "\xC0" =~ /\p{UppercaseLetter}/, "\\xC0 =~ UppercaseLetter";
1552 ok "\xC0" =~ /\p{UppercaseLetter}/i, "\\xC0 =~ UppercaseLetter under /i";
1553 ok "\xC0" !~ /\p{LowercaseLetter}/, "\\xC0 !~ LowercaseLetter";
1554 ok "\xC0" =~ /\p{LowercaseLetter}/i, "\\xC0 =~ LowercaseLetter under /i";
1555 ok "\xC0" !~ /\p{TitlecaseLetter}/, "\\xC0 !~ TitlecaseLetter";
1556 ok "\xC0" =~ /\p{TitlecaseLetter}/i, "\\xC0 =~ TitlecaseLetter under /i";
1557 ok "\xE0" !~ /\p{UppercaseLetter}/, "\\xE0 !~ UppercaseLetter";
1558 ok "\xE0" =~ /\p{UppercaseLetter}/i, "\\xE0 =~ UppercaseLetter under /i";
1559 ok "\xE0" =~ /\p{LowercaseLetter}/, "\\xE0 =~ LowercaseLetter";
1560 ok "\xE0" =~ /\p{LowercaseLetter}/i, "\\xE0 =~ LowercaseLetter under /i";
1561 ok "\xE0" !~ /\p{TitlecaseLetter}/, "\\xE0 !~ TitlecaseLetter";
1562 ok "\xE0" =~ /\p{TitlecaseLetter}/i, "\\xE0 =~ TitlecaseLetter under /i";
1563 ok "\x{1C5}" !~ /\p{UppercaseLetter}/, "\\x{1C5} !~ UppercaseLetter";
1564 ok "\x{1C5}" =~ /\p{UppercaseLetter}/i, "\\x{1C5} =~ UppercaseLetter under /i";
1565 ok "\x{1C5}" !~ /\p{LowercaseLetter}/, "\\x{1C5} !~ LowercaseLetter";
1566 ok "\x{1C5}" =~ /\p{LowercaseLetter}/i, "\\x{1C5} =~ LowercaseLetter under /i";
1567 ok "\x{1C5}" =~ /\p{TitlecaseLetter}/, "\\x{1C5} =~ TitlecaseLetter";
1568 ok "\x{1C5}" =~ /\p{TitlecaseLetter}/i, "\\x{1C5} =~ TitlecaseLetter under /i";
1569 }
1570
e425a60b
YO		 1571 {
1572 # requirement of Unicode Technical Standard #18, 1.7 Code Points
1573 # cf. http://www.unicode.org/reports/tr18/#Supplementary_Characters
1574 for my $u (0x7FF, 0x800, 0xFFFF, 0x10000) {
1575 no warnings 'utf8'; # oops
1576 my $c = chr $u;
1577 my $x = sprintf '%04X', $u;
1578 ok "A${c}B" =~ /A[\0-\x{10000}]B/, "Unicode range - $x";
1579 }
1580 }
1581
e425a60b
YO		 1582 {
1583 my $res="";
1584
1585 if ('1' =~ /(?|(?<digit>1)|(?<digit>2))/) {
1586 $res = "@{$- {digit}}";
1587 }
de26e0cc
NC		 1588 is($res, "1",
1589 "Check that (?|...) doesnt cause dupe entries in the names array");
0f289c68 1590
e425a60b
YO		 1591 $res = "";
1592 if ('11' =~ /(?|(?<digit>1)|(?<digit>2))(?&digit)/) {
1593 $res = "@{$- {digit}}";
1594 }
de26e0cc
NC		 1595 is($res, "1",
1596 "Check that (?&..) to a buffer inside a (?|...) goes to the leftmost");
e425a60b
YO		 1597 }
1598
e425a60b
YO		 1599 {
1600 use warnings;
de946258 1601 my $message = "ASCII pattern that really is UTF-8";
e425a60b
YO		 1602 my @w;
1603 local $SIG {__WARN__} = sub {push @w, "@_"};
0f289c68 1604 my $c = qq (\x{DF});
de946258
NC		 1605 like($c, qr/${c}|\x{100}/, $message);
1606 is("@w", '', $message);
0f289c68 1607 }
e425a60b 1608
e425a60b 1609 {
de946258 1610 my $message = "Corruption of match results of qr// across scopes";
e425a60b
YO		 1611 my $qr = qr/(fo+)(ba+r)/;
1612 'foobar' =~ /$qr/;
de946258 1613 is("$1$2", "foobar", $message);
e425a60b
YO		 1614 {
1615 'foooooobaaaaar' =~ /$qr/;
de946258 1616 is("$1$2", 'foooooobaaaaar', $message);
e425a60b 1617 }
de946258 1618 is("$1$2", "foobar", $message);
e425a60b
YO		 1619 }
1620
e425a60b 1621 {
de946258 1622 my $message = "HORIZWS";
e425a60b
YO		 1623 local $_ = "\t \r\n \n \t".chr(11)."\n";
1624 s/\H/H/g;
1625 s/\h/h/g;
de946258 1626 is($_, "hhHHhHhhHH", $message);
e425a60b
YO		 1627 $_ = "\t \r\n \n \t" . chr (11) . "\n";
1628 utf8::upgrade ($_);
1629 s/\H/H/g;
1630 s/\h/h/g;
de946258 1631 is($_, "hhHHhHhhHH", $message);
0f289c68 1632 }
e425a60b 1633
e425a60b 1634 {
de946258 1635 # Various whitespace special patterns
a9c9e371 1636 my @h = map {chr $_} 0x09, 0x20, 0xa0, 0x1680, 0x2000,
e425a60b
YO		 1637 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006,
1638 0x2007, 0x2008, 0x2009, 0x200a, 0x202f, 0x205f,
1639 0x3000;
1640 my @v = map {chr $_} 0x0a, 0x0b, 0x0c, 0x0d, 0x85, 0x2028,
1641 0x2029;
1642 my @lb = ("\x0D\x0A", map {chr $_} 0x0A .. 0x0D, 0x85, 0x2028, 0x2029);
1643 foreach my $t ([\@h, qr/\h/, qr/\h+/],
1644 [\@v, qr/\v/, qr/\v+/],
1645 [\@lb, qr/\R/, qr/\R+/],) {
1646 my $ary = shift @$t;
1647 foreach my $pat (@$t) {
1648 foreach my $str (@$ary) {
df6841b6
KW		 1649 my $temp_str = $str;
1650 $temp_str = display($temp_str);
1651 ok $str =~ /($pat)/, $temp_str . " =~ /($pat)";
1652 my $temp_1 = $1;
1653 is($1, $str, "\$1='" . display($temp_1) . "' eq '" . $temp_str . "' after ($pat)");
e425a60b 1654 utf8::upgrade ($str);
df6841b6
KW		 1655 ok $str =~ /($pat)/, "Upgraded " . $temp_str . " =~ /($pat)/";
1656 is($1, $str, "\$1='" . display($temp_1) . "' eq '" . $temp_str . "'(upgraded) after ($pat)");
e425a60b
YO		 1657 }
1658 }
1659 }
1660 }
1661
e425a60b 1662 {
de946258 1663 # Check that \\xDF match properly in its various forms
e425a60b
YO		 1664 # Test that \xDF matches properly. this is pretty hacky stuff,
1665 # but its actually needed. The malarky with '-' is to prevent
1666 # compilation caching from playing any role in the test.
1667 my @df = (chr (0xDF), '-', chr (0xDF));
1668 utf8::upgrade ($df [2]);
1669 my @strs = ('ss', 'sS', 'Ss', 'SS', chr (0xDF));
1670 my @ss = map {("$_", "$_")} @strs;
1671 utf8::upgrade ($ss [$_ * 2 + 1]) for 0 .. $#strs;
1672
1673 for my $ssi (0 .. $#ss) {
1674 for my $dfi (0 .. $#df) {
1675 my $pat = $df [$dfi];
1676 my $str = $ss [$ssi];
1677 my $utf_df = ($dfi > 1) ? 'utf8' : '';
1678 my $utf_ss = ($ssi % 2) ? 'utf8' : '';
1679 (my $sstr = $str) =~ s/\xDF/\\xDF/;
1680
1681 if ($utf_df || $utf_ss || length ($ss [$ssi]) == 1) {
1682 my $ret = $str =~ /$pat/i;
1683 next if $pat eq '-';
1684 ok $ret, "\"$sstr\" =~ /\\xDF/i " .
1685 "(str is @{[$utf_ss||'latin']}, pat is " .
1686 "@{[$utf_df||'latin']})";
1687 }
1688 else {
1689 my $ret = $str !~ /$pat/i;
1690 next if $pat eq '-';
1691 ok $ret, "\"$sstr\" !~ /\\xDF/i " .
1692 "(str is @{[$utf_ss||'latin']}, pat is " .
1693 "@{[$utf_df||'latin']})";
1694 }
1695 }
1696 }
1697 }
1698
e425a60b 1699 {
de946258 1700 my $message = "BBC(Bleadperl Breaks CPAN) Today: String::Multibyte";
e425a60b
YO		 1701 my $re = qr/(?:[\x00-\xFF]{4})/;
1702 my $hyp = "\0\0\0-";
1703 my $esc = "\0\0\0\\";
1704
1705 my $str = "$esc$hyp$hyp$esc$esc";
1706 my @a = ($str =~ /\G(?:\Q$esc$esc\E|\Q$esc$hyp\E|$re)/g);
1707
de946258 1708 is(@a,3, $message);
e425a60b 1709 local $" = "=";
de946258 1710 is("@a","$esc$hyp=$hyp=$esc$esc", $message);
e425a60b
YO		 1711 }
1712
e425a60b
YO		 1713 {
1714 # Test for keys in %+ and %-
de946258 1715 my $message = 'Test keys in %+ and %-';
dcd695b6 1716 no warnings 'uninitialized', 'deprecated', 'experimental::lexical_topic';
e425a60b
YO		 1717 my $_ = "abcdef";
1718 /(?<foo>a)|(?<foo>b)/;
de946258
NC		 1719 is((join ",", sort keys %+), "foo", $message);
1720 is((join ",", sort keys %-), "foo", $message);
1721 is((join ",", sort values %+), "a", $message);
1722 is((join ",", sort map "@$_", values %-), "a ", $message);
e425a60b 1723 /(?<bar>a)(?<bar>b)(?<quux>.)/;
de946258
NC		 1724 is((join ",", sort keys %+), "bar,quux", $message);
1725 is((join ",", sort keys %-), "bar,quux", $message);
1726 is((join ",", sort values %+), "a,c", $message); # leftmost
1727 is((join ",", sort map "@$_", values %-), "a b,c", $message);
e425a60b 1728 /(?<un>a)(?<deux>c)?/; # second buffer won't capture
de946258
NC		 1729 is((join ",", sort keys %+), "un", $message);
1730 is((join ",", sort keys %-), "deux,un", $message);
1731 is((join ",", sort values %+), "a", $message);
1732 is((join ",", sort map "@$_", values %-), ",a", $message);
e425a60b
YO		 1733 }
1734
e425a60b
YO		 1735 {
1736 # length() on captures, the numbered ones end up in Perl_magic_len
dcd695b6 1737 no warnings 'deprecated', 'experimental::lexical_topic';
e425a60b
YO		 1738 my $_ = "aoeu \xe6var ook";
1739 /^ \w+ \s (?<eek>\S+)/x;
1740
de26e0cc
NC		 1741 is(length $`, 0, q[length $`]);
1742 is(length $', 4, q[length $']);
1743 is(length $&, 9, q[length $&]);
1744 is(length $1, 4, q[length $1]);
1745 is(length $+{eek}, 4, q[length $+{eek} == length $1]);
e425a60b
YO		 1746 }
1747
e425a60b
YO		 1748 {
1749 my $ok = -1;
1750
1751 $ok = exists ($-{x}) ? 1 : 0 if 'bar' =~ /(?<x>foo)|bar/;
de26e0cc
NC		 1752 is($ok, 1, '$-{x} exists after "bar"=~/(?<x>foo)|bar/');
1753 is(scalar (%+), 0, 'scalar %+ == 0 after "bar"=~/(?<x>foo)|bar/');
1754 is(scalar (%-), 1, 'scalar %- == 1 after "bar"=~/(?<x>foo)|bar/');
e425a60b
YO		 1755
1756 $ok = -1;
1757 $ok = exists ($+{x}) ? 1 : 0 if 'bar' =~ /(?<x>foo)|bar/;
de26e0cc
NC		 1758 is($ok, 0, '$+{x} not exists after "bar"=~/(?<x>foo)|bar/');
1759 is(scalar (%+), 0, 'scalar %+ == 0 after "bar"=~/(?<x>foo)|bar/');
1760 is(scalar (%-), 1, 'scalar %- == 1 after "bar"=~/(?<x>foo)|bar/');
e425a60b
YO		 1761
1762 $ok = -1;
1763 $ok = exists ($-{x}) ? 1 : 0 if 'foo' =~ /(?<x>foo)|bar/;
de26e0cc
NC		 1764 is($ok, 1, '$-{x} exists after "foo"=~/(?<x>foo)|bar/');
1765 is(scalar (%+), 1, 'scalar %+ == 1 after "foo"=~/(?<x>foo)|bar/');
1766 is(scalar (%-), 1, 'scalar %- == 1 after "foo"=~/(?<x>foo)|bar/');
e425a60b
YO		 1767
1768 $ok = -1;
1769 $ok = exists ($+{x}) ? 1 : 0 if 'foo'=~/(?<x>foo)|bar/;
de26e0cc 1770 is($ok, 1, '$+{x} exists after "foo"=~/(?<x>foo)|bar/');
e425a60b
YO		 1771 }
1772
e425a60b
YO		 1773 {
1774 local $_;
1775 ($_ = 'abc') =~ /(abc)/g;
0f289c68 1776 $_ = '123';
de26e0cc 1777 is("$1", 'abc', "/g leads to unsafe match vars: $1");
1b474ee3
NC		 1778
1779 fresh_perl_is(<<'EOP', ">abc<\n", {}, 'mention $&');
1780$&;
1781my $x;
1782($x='abc')=~/(abc)/g;
1783$x='123';
1784print ">$1<\n";
1785EOP
1786
1b474ee3
NC		 1787 fresh_perl_is(<<'EOP', ">abc<\n", {}, 'no mention of $&');
1788my $x;
1789($x='abc')=~/(abc)/g;
1790$x='123';
1791print ">$1<\n";
1792EOP
e425a60b
YO		 1793 }
1794
e425a60b 1795 {
de946258 1796 # Message-ID: <20070818091501.7eff4831@r2d2>
e425a60b
YO		 1797 my $str = "";
1798 for (0 .. 5) {
1799 my @x;
1800 $str .= "@x"; # this should ALWAYS be the empty string
1801 'a' =~ /(a|)/;
1802 push @x, 1;
1803 }
de26e0cc 1804 is(length $str, 0, "Trie scope error, string should be empty");
e425a60b
YO		 1805 $str = "";
1806 my @foo = ('a') x 5;
1807 for (@foo) {
1808 my @bar;
1809 $str .= "@bar";
1810 s/a|/push @bar, 1/e;
1811 }
de26e0cc 1812 is(length $str, 0, "Trie scope error, string should be empty");
e425a60b
YO		 1813 }
1814
e425a60b 1815 {
e425a60b 1816# more TRIE/AHOCORASICK problems with mixed utf8 / latin-1 and case folding
0f289c68
YO		 1817 for my $chr (160 .. 255) {
1818 my $chr_byte = chr($chr);
1819 my $chr_utf8 = chr($chr); utf8::upgrade($chr_utf8);
1820 my $rx = qr{$chr_byte|X}i;
1821 ok($chr_utf8 =~ $rx, "utf8/latin, codepoint $chr");
1822 }
e425a60b
YO		 1823 }
1824
1825 {
e425a60b
YO		 1826 our $a = 3; "" =~ /(??{ $a })/;
1827 our $b = $a;
de26e0cc 1828 is($b, $a, "Copy of scalar used for postponed subexpression");
e425a60b
YO		 1829 }
1830
e425a60b 1831 {
e425a60b
YO		 1832 our @ctl_n = ();
1833 our @plus = ();
1834 our $nested_tags;
1835 $nested_tags = qr{
1836 <
1837 (\w+)
1838 (?{
1839 push @ctl_n,$^N;
1840 push @plus,$+;
1841 })
1842 >
1843 (??{$nested_tags})*
1844 </\s* \w+ \s*>
1845 }x;
1846
1847 my $match = '<bla><blubb></blubb></bla>' =~ m/^$nested_tags$/;
1848 ok $match, 'nested construct matches';
de26e0cc
NC		 1849 is("@ctl_n", "bla blubb", '$^N inside of (?{}) works as expected');
1850 is("@plus", "bla blubb", '$+ inside of (?{}) works as expected');
e425a60b
YO		 1851 }
1852
e425a60b
YO		 1853 SKIP: {
1854 # XXX: This set of tests is essentially broken, POSIX character classes
0f289c68 1855 # should not have differing definitions under Unicode.
e425a60b 1856 # There are property names for that.
ef237063 1857 skip "Tests assume ASCII", 4 unless $::IS_ASCII;
e425a60b
YO		 1858
1859 my @notIsPunct = grep {/[[:punct:]]/ and not /\p{IsPunct}/}
1860 map {chr} 0x20 .. 0x7f;
1a3f15c1 1861 is(join ('', @notIsPunct), '$+<=>^`|~',
de26e0cc 1862 '[:punct:] disagrees with IsPunct on Symbols');
e425a60b
YO		 1863
1864 my @isPrint = grep {not /[[:print:]]/ and /\p{IsPrint}/}
1865 map {chr} 0 .. 0x1f, 0x7f .. 0x9f;
de26e0cc
NC		 1866 is(join ('', @isPrint), "",
1867 'IsPrint agrees with [:print:] on control characters');
e425a60b
YO		 1868
1869 my @isPunct = grep {/[[:punct:]]/ != /\p{IsPunct}/}
1870 map {chr} 0x80 .. 0xff;
7620cb10 1871 is(join ('', @isPunct), "\xa1\xa7\xab\xb6\xb7\xbb\xbf", # ¡ « · » ¿
de26e0cc 1872 'IsPunct disagrees with [:punct:] outside ASCII');
e425a60b
YO		 1873
1874 my @isPunctLatin1 = eval q {
55673181 1875 no warnings 'deprecated';
e425a60b
YO		 1876 use encoding 'latin1';
1877 grep {/[[:punct:]]/ != /\p{IsPunct}/} map {chr} 0x80 .. 0xff;
1878 };
1879 skip "Eval failed ($@)", 1 if $@;
1880 skip "PERL_LEGACY_UNICODE_CHARCLASS_MAPPINGS set to 0", 1
1881 if !$ENV{PERL_TEST_LEGACY_POSIX_CC};
de26e0cc
NC		 1882 is(join ('', @isPunctLatin1), '',
1883 'IsPunct agrees with [:punct:] with explicit Latin1');
0f289c68 1884 }
d1c771f5 1885
d1c771f5
B		 1886 {
1887 # Tests for [#perl 71942]
1888 our $count_a;
1889 our $count_b;
1890
1891 my $c = 0;
1892 for my $re (
1893# [
1894# should match?,
1895# input string,
1896# re 1,
1897# re 2,
1898# expected values of count_a and count_b,
1899# ]
1900 [
1901 0,
1902 "xababz",
1903 qr/a+(?{$count_a++})b?(*COMMIT)(*FAIL)/,
1904 qr/a+(?{$count_b++})b?(*COMMIT)z/,
1905 1,
1906 ],
1907 [
1908 0,
1909 "xababz",
1910 qr/a+(?{$count_a++})b?(*COMMIT)\s*(*FAIL)/,
1911 qr/a+(?{$count_b++})b?(*COMMIT)\s*z/,
1912 1,
1913 ],
1914 [
1915 0,
1916 "xababz",
1917 qr/a+(?{$count_a++})(?:b|)?(*COMMIT)(*FAIL)/,
1918 qr/a+(?{$count_b++})(?:b|)?(*COMMIT)z/,
1919 1,
1920 ],
1921 [
1922 0,
1923 "xababz",
1924 qr/a+(?{$count_a++})b{0,6}(*COMMIT)(*FAIL)/,
1925 qr/a+(?{$count_b++})b{0,6}(*COMMIT)z/,
1926 1,
1927 ],
1928 [
1929 0,
1930 "xabcabcz",
1931 qr/a+(?{$count_a++})(bc){0,6}(*COMMIT)(*FAIL)/,
1932 qr/a+(?{$count_b++})(bc){0,6}(*COMMIT)z/,
1933 1,
1934 ],
1935 [
1936 0,
1937 "xabcabcz",
1938 qr/a+(?{$count_a++})(bc*){0,6}(*COMMIT)(*FAIL)/,
1939 qr/a+(?{$count_b++})(bc*){0,6}(*COMMIT)z/,
1940 1,
1941 ],
1942
1943
1944 [
1945 0,
1946 "aaaabtz",
1947 qr/a+(?{$count_a++})b?(*PRUNE)(*FAIL)/,
1948 qr/a+(?{$count_b++})b?(*PRUNE)z/,
1949 4,
1950 ],
1951 [
1952 0,
1953 "aaaabtz",
1954 qr/a+(?{$count_a++})b?(*PRUNE)\s*(*FAIL)/,
1955 qr/a+(?{$count_b++})b?(*PRUNE)\s*z/,
1956 4,
1957 ],
1958 [
1959 0,
1960 "aaaabtz",
1961 qr/a+(?{$count_a++})(?:b|)(*PRUNE)(*FAIL)/,
1962 qr/a+(?{$count_b++})(?:b|)(*PRUNE)z/,
1963 4,
1964 ],
1965 [
1966 0,
1967 "aaaabtz",
1968 qr/a+(?{$count_a++})b{0,6}(*PRUNE)(*FAIL)/,
1969 qr/a+(?{$count_b++})b{0,6}(*PRUNE)z/,
1970 4,
1971 ],
1972 [
1973 0,
1974 "aaaabctz",
1975 qr/a+(?{$count_a++})(bc){0,6}(*PRUNE)(*FAIL)/,
1976 qr/a+(?{$count_b++})(bc){0,6}(*PRUNE)z/,
1977 4,
1978 ],
1979 [
1980 0,
1981 "aaaabctz",
1982 qr/a+(?{$count_a++})(bc*){0,6}(*PRUNE)(*FAIL)/,
1983 qr/a+(?{$count_b++})(bc*){0,6}(*PRUNE)z/,
1984 4,
1985 ],
1986
1987 [
1988 0,
1989 "aaabaaab",
1990 qr/a+(?{$count_a++;})b?(*SKIP)(*FAIL)/,
1991 qr/a+(?{$count_b++;})b?(*SKIP)z/,
1992 2,
1993 ],
1994 [
1995 0,
1996 "aaabaaab",
1997 qr/a+(?{$count_a++;})b?(*SKIP)\s*(*FAIL)/,
1998 qr/a+(?{$count_b++;})b?(*SKIP)\s*z/,
1999 2,
2000 ],
2001 [
2002 0,
2003 "aaabaaab",
2004 qr/a+(?{$count_a++;})(?:b|)(*SKIP)(*FAIL)/,
2005 qr/a+(?{$count_b++;})(?:b|)(*SKIP)z/,
2006 2,
2007 ],
2008 [
2009 0,
2010 "aaabaaab",
2011 qr/a+(?{$count_a++;})b{0,6}(*SKIP)(*FAIL)/,
2012 qr/a+(?{$count_b++;})b{0,6}(*SKIP)z/,
2013 2,
2014 ],
2015 [
2016 0,
2017 "aaabcaaabc",
2018 qr/a+(?{$count_a++;})(bc){0,6}(*SKIP)(*FAIL)/,
2019 qr/a+(?{$count_b++;})(bc){0,6}(*SKIP)z/,
2020 2,
2021 ],
2022 [
2023 0,
2024 "aaabcaaabc",
2025 qr/a+(?{$count_a++;})(bc*){0,6}(*SKIP)(*FAIL)/,
2026 qr/a+(?{$count_b++;})(bc*){0,6}(*SKIP)z/,
2027 2,
2028 ],
2029
2030
2031 [
2032 0,
2033 "aaddbdaabyzc",
2034 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) (*FAIL) \s* c \1 /x,
2035 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) z \s* c \1 /x,
2036 4,
2037 ],
2038 [
2039 0,
2040 "aaddbdaabyzc",
2041 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) \s* (*FAIL) \s* c \1 /x,
2042 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) \s* z \s* c \1 /x,
2043 4,
2044 ],
2045 [
2046 0,
2047 "aaddbdaabyzc",
2048 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? (?:b|) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2049 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? (?:b|) (*SKIP:T1) z \s* c \1 /x,
2050 4,
2051 ],
2052 [
2053 0,
2054 "aaddbdaabyzc",
2055 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? b{0,6} (*SKIP:T1) (*FAIL) \s* c \1 /x,
2056 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? b{0,6} (*SKIP:T1) z \s* c \1 /x,
2057 4,
2058 ],
2059 [
2060 0,
2061 "aaddbcdaabcyzc",
2062 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? (bc){0,6} (*SKIP:T1) (*FAIL) \s* c \1 /x,
2063 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? (bc){0,6} (*SKIP:T1) z \s* c \1 /x,
2064 4,
2065 ],
2066 [
2067 0,
2068 "aaddbcdaabcyzc",
2069 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? (bc*){0,6} (*SKIP:T1) (*FAIL) \s* c \1 /x,
2070 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? (bc*){0,6} (*SKIP:T1) z \s* c \1 /x,
2071 4,
2072 ],
2073
2074
2075 [
2076 0,
2077 "aaaaddbdaabyzc",
2078 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2079 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2080 2,
2081 ],
2082 [
2083 0,
2084 "aaaaddbdaabyzc",
2085 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) \s* (*FAIL) \s* c \1 /x,
2086 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) \s* z \s* c \1 /x,
2087 2,
2088 ],
2089 [
2090 0,
2091 "aaaaddbdaabyzc",
2092 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? (?:b|) (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2093 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? (?:b|) (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2094 2,
2095 ],
2096 [
2097 0,
2098 "aaaaddbdaabyzc",
2099 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? b{0,6} (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2100 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? b{0,6} (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2101 2,
2102 ],
2103 [
2104 0,
2105 "aaaaddbcdaabcyzc",
2106 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? (bc){0,6} (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2107 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? (bc){0,6} (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2108 2,
2109 ],
2110 [
2111 0,
2112 "aaaaddbcdaabcyzc",
2113 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? (bc*){0,6} (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2114 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? (bc*){0,6} (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2115 2,
2116 ],
2117
2118
2119 [
2120 0,
2121 "AbcdCBefgBhiBqz",
2122 qr/(A (.*) (?{ $count_a++ }) C? (*THEN) | A D) (*FAIL)/x,
2123 qr/(A (.*) (?{ $count_b++ }) C? (*THEN) | A D) z/x,
2124 1,
2125 ],
2126 [
2127 0,
2128 "AbcdCBefgBhiBqz",
2129 qr/(A (.*) (?{ $count_a++ }) C? (*THEN) | A D) \s* (*FAIL)/x,
2130 qr/(A (.*) (?{ $count_b++ }) C? (*THEN) | A D) \s* z/x,
2131 1,
2132 ],
2133 [
2134 0,
2135 "AbcdCBefgBhiBqz",
2136 qr/(A (.*) (?{ $count_a++ }) (?:C|) (*THEN) | A D) (*FAIL)/x,
2137 qr/(A (.*) (?{ $count_b++ }) (?:C|) (*THEN) | A D) z/x,
2138 1,
2139 ],
2140 [
2141 0,
2142 "AbcdCBefgBhiBqz",
2143 qr/(A (.*) (?{ $count_a++ }) C{0,6} (*THEN) | A D) (*FAIL)/x,
2144 qr/(A (.*) (?{ $count_b++ }) C{0,6} (*THEN) | A D) z/x,
2145 1,
2146 ],
2147 [
2148 0,
2149 "AbcdCEBefgBhiBqz",
2150 qr/(A (.*) (?{ $count_a++ }) (CE){0,6} (*THEN) | A D) (*FAIL)/x,
2151 qr/(A (.*) (?{ $count_b++ }) (CE){0,6} (*THEN) | A D) z/x,
2152 1,
2153 ],
2154 [
2155 0,
2156 "AbcdCBefgBhiBqz",
2157 qr/(A (.*) (?{ $count_a++ }) (CE*){0,6} (*THEN) | A D) (*FAIL)/x,
2158 qr/(A (.*) (?{ $count_b++ }) (CE*){0,6} (*THEN) | A D) z/x,
2159 1,
2160 ],
2161 ) {
2162 $c++;
2163 $count_a = 0;
2164 $count_b = 0;
2165
2166 my $match_a = ($re->[1] =~ $re->[2]) || 0;
2167 my $match_b = ($re->[1] =~ $re->[3]) || 0;
2168
de26e0cc
NC		 2169 is($match_a, $re->[0], "match a " . ($re->[0] ? "succeeded" : "failed") . " ($c)");
2170 is($match_b, $re->[0], "match b " . ($re->[0] ? "succeeded" : "failed") . " ($c)");
2171 is($count_a, $re->[4], "count a ($c)");
2172 is($count_b, $re->[4], "count b ($c)");
d1c771f5
B		 2173 }
2174 }
e425a60b 2175
b57e4118
KW		 2176 { # Bleadperl v5.13.8-292-gf56b639 breaks NEZUMI/Unicode-LineBreak-1.011
2177 # \xdf in lookbehind failed to compile as is multi-char fold
14358a41
NC		 2178 my $message = "Lookbehind with \\xdf matchable compiles";
2179 my $r = eval 'qr{
b57e4118
KW		 2180 (?u: (?<=^url:) |
2181 (?<=[/]) (?=[^/]) |
2182 (?<=[^-.]) (?=[-~.,_?\#%=&]) |
2183 (?<=[=&]) (?=.)
14358a41
NC		 2184 )}iox';
2185 is($@, '', $message);
bbce3ca6 2186 object_ok($r, 'Regexp', $message);
b57e4118
KW		 2187 }
2188
84193928
KW		 2189 # RT #82610
2190 ok 'foo/file.fob' =~ m,^(?=[^\.])[^/]*/(?=[^\.])[^/]*\.fo[^/]$,;
2191
295c2f7d
KW		 2192 { # This was failing unless an explicit /d was added
2193 my $p = qr/[\xE0_]/i;
2194 utf8::upgrade($p);
2195 like("\xC0", $p, "Verify \"\\xC0\" =~ /[\\xE0_]/i; pattern in utf8");
2196 }
2197
a40630bf
YO		 2198 ok "x" =~ /\A(?>(?:(?:)A|B|C?x))\z/,
2199 "Check TRIE does not overwrite EXACT following NOTHING at start - RT #111842";
c221a219 2200
26faadbd
KW		 2201 {
2202 my $single = ":";
2203 my $upper = "\x{390}"; # Fold is 3 chars.
2204 my $multi = CORE::fc($upper);
2205
2206 my $failed = 0;
2207
2208 # Try forcing a node to be split, with a multi-char fold at the
2209 # boundary
2210 for my $repeat (1 .. 300) {
2211 my $string = $single x $repeat;
2212 my $lhs = $string . $upper;
2213 if ($lhs !~ m/$string$multi/i) {
2214 $failed = $repeat;
2215 last;
2216 }
2217 }
2218 ok(! $failed, "Matched multi-char fold across EXACTFish node boundaries; if failed, was at count $failed");
2219
b9c48b5b
KW		 2220 $failed = 0;
2221 for my $repeat (1 .. 300) {
2222 my $string = $single x $repeat;
2223 my $lhs = $string . "\N{LATIN SMALL LIGATURE FFI}";
2224 if ($lhs !~ m/${string}ff\N{LATIN SMALL LETTER I}/i) {
2225 $failed = $repeat;
2226 last;
2227 }
2228 }
2229 ok(! $failed, "Matched multi-char fold across EXACTFish node boundaries; if failed, was at count $failed");
2230
2231 $failed = 0;
2232 for my $repeat (1 .. 300) {
2233 my $string = $single x $repeat;
2234 my $lhs = $string . "\N{LATIN SMALL LIGATURE FFL}";
2235 if ($lhs !~ m/${string}ff\N{U+6c}/i) {
2236 $failed = $repeat;
2237 last;
2238 }
2239 }
2240 ok(! $failed, "Matched multi-char fold across EXACTFish node boundaries; if failed, was at count $failed");
88b3a463
KW		 2241
2242 # This tests that under /d matching that an 'ss' split across two
2243 # parts of a node doesn't end up turning into something that matches
2244 # \xDF unless it is in utf8.
2245 $failed = 0;
2246 $single = 'a'; # Is non-terminal multi-char fold char
2247 for my $repeat (1 .. 300) {
2248 my $string = $single x $repeat;
2249 my $lhs = "$string\N{LATIN SMALL LETTER SHARP S}";
2250 utf8::downgrade($lhs);
2251 $string .= "s";
2252 if ($lhs =~ m/${string}s/di) {
2253 $failed = $repeat;
2254 last;
2255 }
2256 }
2257 ok(! $failed, "Matched multi-char fold 'ss' across EXACTF node boundaries; if failed, was at count $failed");
26faadbd
KW		 2258 }
2259
2b233a8f 2260 {
2b233a8f
KW		 2261 fresh_perl_is('print eval "\"\x{101}\" =~ /[[:lower:]]/", "\n"; print eval "\"\x{100}\" =~ /[[:lower:]]/i", "\n";',
2262 "1\n1", # Both re's should match
20e5bab4 2263 {},
2b233a8f
KW		 2264 "get [:lower:] swash in first eval; test under /i in second");
2265 }
2266
c5de0829
JK		 2267 {
2268 #' RT #119075
fd2268bc 2269 no warnings 'regexp'; # Silence "has useless greediness modifier"
c5de0829
JK		 2270 local $@;
2271 eval { /a{0}?/; };
2272 ok(! $@,
2273 "PCRE regression test: No 'Quantifier follows nothing in regex' warning");
2274
2275 }
2276
709d08c2
KW		 2277 {
2278 unlike("\xB5", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2279 like("\xB6", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2280 unlike("\xB7", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2281 like("\xB5", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2282 unlike("\xB6", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2283 like("\xB7", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2284
2285 unlike("_\xB5", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2286 like("_\xB6", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2287 unlike("_\xB7", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2288 like("_\xB5", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2289 unlike("_\xB6", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2290 like("_\xB7", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2291 }
2292
2293 # These are defined later, so won't be known at regex compile time above
2294 sub IsMyRuntimeProperty {
2295 return "B6\n";
2296 }
2297
2298 sub IsntMyRuntimeProperty {
2299 return "!B6\n";
2300 }
2301
bc031a7d
KW		 2302 { # From Lingua::Stem::UniNE; no ticket filed but related to #121778
2303 use utf8;
2304 my $word = 'рабта';
2305 $word =~ s{ (?:
2306 ия # definite articles for nouns:
2307 | ът # ∙ masculine
2308 | та # ∙ feminine
2309 | то # ∙ neutral
2310 | те # ∙ plural
2311 ) $ }{}x;
2312 is($word, 'раб', "Handles UTF8 trie correctly");
2313 }
2314
e425a60b
YO		 2315 #
2316 # Keep the following tests last -- they may crash perl
2317 #
2318 print "# Tests that follow may crash perl\n";
e425a60b
YO		 2319 {
2320 eval '/\k/';
2321 ok $@ =~ /\QSequence \k... not terminated in regex;\E/,
2322 'Lone \k not allowed';
2323 }
2324
e425a60b 2325 {
de946258 2326 my $message = "Substitution with lookahead (possible segv)";
e425a60b
YO		 2327 $_ = "ns1ns1ns1";
2328 s/ns(?=\d)/ns_/g;
de946258 2329 is($_, "ns_1ns_1ns_1", $message);
e425a60b
YO		 2330 $_ = "ns1";
2331 s/ns(?=\d)/ns_/;
de946258 2332 is($_, "ns_1", $message);
e425a60b
YO		 2333 $_ = "123";
2334 s/(?=\d+)|(?<=\d)/!Bang!/g;
de946258 2335 is($_, "!Bang!1!Bang!2!Bang!3!Bang!", $message);
e425a60b
YO		 2336 }
2337
6182169b
KW		 2338 {
2339 # Earlier versions of Perl said this was fatal.
de946258 2340 my $message = "U+0FFFF shouldn't crash the regex engine";
6182169b
KW		 2341 no warnings 'utf8';
2342 my $a = eval "chr(65535)";
2343 use warnings;
2344 my $warning_message;
2345 local $SIG{__WARN__} = sub { $warning_message = $_[0] };
2346 eval $a =~ /[a-z]/;
de946258 2347 ok(1, $message); # If it didn't crash, it worked.
6182169b 2348 }
b57e4118 2349
06345901
NC		 2350 TODO: { # Was looping
2351 todo_skip('Triggers thread clone SEGV. See #86550')
2352 if $::running_as_thread && $::running_as_thread;
478c6b74 2353 watchdog(10); # Use a bigger value for busy systems
6438af90
KW		 2354 like("\x{00DF}", qr/[\x{1E9E}_]*/i, "\"\\x{00DF}\" =~ /[\\x{1E9E}_]*/i was looping");
2355 }
2356
f9126265
KW		 2357 { # Bug #90536, caused failed assertion
2358 unlike("s\N{U+DF}", qr/^\x{00DF}/i, "\"s\\N{U+DF}\", qr/^\\x{00DF}/i");
2359 }
2360
361ee0fe
KW		 2361 # User-defined Unicode properties to match above-Unicode code points
2362 sub Is_32_Bit_Super { return "110000\tFFFFFFFF\n" }
2363 sub Is_Portable_Super { return '!utf8::Any' } # Matches beyond 32 bits
45d91b83
KW		 2364
2365 { # Assertion was failing on on 64-bit platforms; just didn't work on 32.
2366 no warnings qw(non_unicode portable);
2367 use Config;
2368
2369 # We use 'ok' instead of 'like' because the warnings are lexically
2370 # scoped, and want to turn them off, so have to do the match in this
2371 # scope
84ea5ef6 2372 if ($Config{uvsize} < 8) {
361ee0fe 2373 ok(chr(0xFFFF_FFFE) =~ /\p{Is_32_Bit_Super}/,
84ea5ef6 2374 "chr(0xFFFF_FFFE) can match a Unicode property");
6cb05c12
KW		 2375 ok(chr(0xFFFF_FFFF) =~ /\p{Is_32_Bit_Super}/,
2376 "chr(0xFFFF_FFFF) can match a Unicode property");
01c5845a
KW		 2377 my $p = qr/^[\x{FFFF_FFFF}]$/;
2378 ok(chr(0xFFFF_FFFF) =~ $p,
2379 "chr(0xFFFF_FFFF) can match itself in a [class]");
3ef5b9b5
KW		 2380 ok(chr(0xFFFF_FFFF) =~ $p, # Tests any caching
2381 "chr(0xFFFF_FFFF) can match itself in a [class] subsequently");
84ea5ef6
KW		 2382 }
2383 else {
2384 no warnings 'overflow';
361ee0fe 2385 ok(chr(0xFFFF_FFFF_FFFF_FFFE) =~ qr/\p{Is_Portable_Super}/,
84ea5ef6 2386 "chr(0xFFFF_FFFF_FFFF_FFFE) can match a Unicode property");
6cb05c12
KW		 2387 ok(chr(0xFFFF_FFFF_FFFF_FFFF) =~ qr/^\p{Is_Portable_Super}$/,
2388 "chr(0xFFFF_FFFF_FFFF_FFFF) can match a Unicode property");
361ee0fe 2389
01c5845a
KW		 2390 my $p = qr/^[\x{FFFF_FFFF_FFFF_FFFF}]$/;
2391 ok(chr(0xFFFF_FFFF_FFFF_FFFF) =~ $p,
2392 "chr(0xFFFF_FFFF_FFFF_FFFF) can match itself in a [class]");
3ef5b9b5
KW		 2393 ok(chr(0xFFFF_FFFF_FFFF_FFFF) =~ $p, # Tests any caching
2394 "chr(0xFFFF_FFFF_FFFF_FFFF) can match itself in a [class] subsequently");
01c5845a 2395
361ee0fe
KW		 2396 # This test is because something was declared as 32 bits, but
2397 # should have been cast to 64; only a problem where
2398 # sizeof(STRLEN) != sizeof(UV)
2399 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");
45d91b83
KW		 2400 }
2401 }
2402
9d501133
KW		 2403 { # [perl #112530], the code below caused a panic
2404 sub InFoo { "a\tb\n9\ta\n" }
2405 like("\n", qr/\p{InFoo}/,
2406 "Overlapping ranges in user-defined properties");
2407 }
2408
2e3a23da
KW		 2409 { # Regexp:Grammars was broken:
2410 # http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2013-06/msg01290.html
2411 fresh_perl_like('use warnings; "abc" =~ qr{(?&foo){0}abc(?<foo>)}',
2412 'Quantifier unexpected on zero-length expression',
20e5bab4 2413 {},
2e3a23da
KW		 2414 'No segfault on qr{(?&foo){0}abc(?<foo>)}');
2415 }
2416
b57e4118
KW		 2417 # !!! NOTE that tests that aren't at all likely to crash perl should go
2418 # a ways above, above these last ones.
f4554ed5
NC		 2419
2420 done_testing();
e425a60b
YO		 2421} # End of sub run_tests
2422
24231;
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