3 # This is a home for regular expression tests that do not fit into
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.
11 require './charset_tools.pl';
12 skip_all_if_miniperl("miniperl can't load Tie::Hash::NamedCapture, need for %+ and %-");
18 our ($REGMARK, $REGERROR);
24 run_tests() unless caller;
32 # Japhy -- added 03/03/2001
33 () = (my $str = "abc") =~ /(...)/;
35 is($1, "abc", 'Changing subject does not modify $1');
40 # The trick is that in EBCDIC the explicit numeric range should
41 # match (as also in non-EBCDIC) but the explicit alphabetic range
43 ok "\x8e" =~ /[\x89-\x91]/, '"\x8e" =~ /[\x89-\x91]/';
44 ok "\xce" =~ /[\xc9-\xd1]/, '"\xce" =~ /[\xc9-\xd1]/';
45 ok "\xd0" =~ /[\xc9-\xd1]/, '"\xd0" =~ /[\xc9-\xd1]/';
47 skip "Not an EBCDIC platform", 2 unless ord ('i') == 0x89 &&
50 # In most places these tests would succeed since \x8e does not
51 # in most character sets match 'i' or 'j' nor would \xce match
52 # 'I' or 'J', but strictly speaking these tests are here for
53 # the good of EBCDIC, so let's test these only there.
54 unlike("\x8e", qr/[i-j]/, '"\x8e" !~ /[i-j]/');
55 unlike("\xce", qr/[I-J]/, '"\xce" !~ /[I-J]/');
56 unlike("\xd0", qr/[I-J]/, '"\xd0" !~ /[I-J]/');
60 ok "\x{ab}" =~ /\x{ab}/, '"\x{ab}" =~ /\x{ab}/ ';
61 ok "\x{abcd}" =~ /\x{abcd}/, '"\x{abcd}" =~ /\x{abcd}/';
65 my $message = 'bug id 20001008.001';
67 my $strasse = "stra" . uni_to_native("\337") . "e";
68 my @x = ("$strasse 138", "$strasse 138");
70 ok(s/(\d+)\s*([\w\-]+)/$1 . uc $2/e, $message);
71 ok(my ($latin) = /^(.+)(?:\s+\d)/, $message);
72 is($latin, $strasse, $message);
73 ok($latin =~ s/$strasse/straße/, $message);
75 # Previous code follows, but outcommented - there were no tests.
77 # $latin =~ s/stra\337e/straße/; # \303\237 after the 2nd a
78 # use utf8; # needed for the raw UTF-8
79 # $latin =~ s!(s)tr(?:aß|s+e)!$1tr.!; # \303\237 after the a
84 my $message = 'Test \x escapes';
85 ok("ba\xd4c" =~ /([a\xd4]+)/ && $1 eq "a\xd4", $message);
86 ok("ba\xd4c" =~ /([a\xd4]+)/ && $1 eq "a\x{d4}", $message);
87 ok("ba\x{d4}c" =~ /([a\xd4]+)/ && $1 eq "a\x{d4}", $message);
88 ok("ba\x{d4}c" =~ /([a\xd4]+)/ && $1 eq "a\xd4", $message);
89 ok("ba\xd4c" =~ /([a\x{d4}]+)/ && $1 eq "a\xd4", $message);
90 ok("ba\xd4c" =~ /([a\x{d4}]+)/ && $1 eq "a\x{d4}", $message);
91 ok("ba\x{d4}c" =~ /([a\x{d4}]+)/ && $1 eq "a\x{d4}", $message);
92 ok("ba\x{d4}c" =~ /([a\x{d4}]+)/ && $1 eq "a\xd4", $message);
96 my $message = 'Match code points > 255';
97 $_ = "abc\x{100}\x{200}\x{300}\x{380}\x{400}defg";
98 ok(/(.\x{300})./, $message);
99 ok($` eq "abc\x{100}" && length ($`) == 4, $message);
100 ok($& eq "\x{200}\x{300}\x{380}" && length ($&) == 3, $message);
101 ok($' eq "\x{400}defg" && length ($') == 5, $message);
102 ok($1 eq "\x{200}\x{300}" && length ($1) == 2, $message);
106 my $x = "\x{10FFFD}";
108 ok ord($x) == 0x10FFFD && length($x) == 1, "From Robin Houston";
119 while (my ($code, $match) = each %d) {
120 my $message = "Properties of \\x$code";
121 my $char = eval qq ["\\x{$code}"];
123 is(0 + ($char =~ /[\x80-\xff]/), $$match[0], $message);
124 is(0 + ($char =~ /[\x80-\x{100}]/), $$match[1], $message);
125 is(0 + ($char =~ /[\x{100}]/), $$match[2], $message);
131 foreach (qw(c g o)) {
132 warning_like(sub {'' =~ "(?$_)"}, qr/^Useless \(\?$_\)/);
133 warning_like(sub {'' =~ "(?-$_)"}, qr/^Useless \(\?-$_\)/);
136 # Now test multi-error regexes
137 foreach (['(?g-o)', qr/^Useless \(\?g\)/, qr/^Useless \(\?-o\)/],
138 ['(?g-c)', qr/^Useless \(\?g\)/, qr/^Useless \(\?-c\)/],
139 # (?c) means (?g) error won't be thrown
140 ['(?o-cg)', qr/^Useless \(\?o\)/, qr/^Useless \(\?-c\)/],
141 ['(?ogc)', qr/^Useless \(\?o\)/, qr/^Useless \(\?g\)/,
142 qr/^Useless \(\?c\)/],
144 my ($re, @warnings) = @$_;
145 warnings_like(sub {eval "qr/$re/"}, \@warnings, "qr/$re/ warns");
150 my $message = "/x tests";
152 foreach my $pat (<<" --", <<" --") {
165 is(eval $pat, 1, $message);
166 is($@, '', $message);
171 my $message = "/o feature";
172 sub test_o {$_ [0] =~ /$_[1]/o; return $1}
173 is(test_o ('abc', '(.)..'), 'a', $message);
174 is(test_o ('abc', '..(.)'), 'a', $message);
178 # Test basic $^N usage outside of a regex
179 my $message = '$^N usage outside of a regex';
181 ok(($x =~ /cde/ and !defined $^N), $message);
182 ok(($x =~ /(cde)/ and $^N eq "cde"), $message);
183 ok(($x =~ /(c)(d)(e)/ and $^N eq "e"), $message);
184 ok(($x =~ /(c(d)e)/ and $^N eq "cde"), $message);
185 ok(($x =~ /(foo)|(c(d)e)/ and $^N eq "cde"), $message);
186 ok(($x =~ /(c(d)e)|(foo)/ and $^N eq "cde"), $message);
187 ok(($x =~ /(c(d)e)|(abc)/ and $^N eq "abc"), $message);
188 ok(($x =~ /(c(d)e)|(abc)x/ and $^N eq "cde"), $message);
189 ok(($x =~ /(c(d)e)(abc)?/ and $^N eq "cde"), $message);
190 ok(($x =~ /(?:c(d)e)/ and $^N eq "d"), $message);
191 ok(($x =~ /(?:c(d)e)(?:f)/ and $^N eq "d"), $message);
192 ok(($x =~ /(?:([abc])|([def]))*/ and $^N eq "f"), $message);
193 ok(($x =~ /(?:([ace])|([bdf]))*/ and $^N eq "f"), $message);
194 ok(($x =~ /(([ace])|([bd]))*/ and $^N eq "e"), $message);
195 {ok(($x =~ /(([ace])|([bdf]))*/ and $^N eq "f"), $message);}
196 ## Test to see if $^N is automatically localized -- it should now
197 ## have the value set in the previous test.
198 is($^N, "e", '$^N is automatically localized');
200 # Now test inside (?{ ... })
201 $message = '$^N usage inside (?{ ... })';
203 ok(($x =~ /a([abc])(?{$y=$^N})c/ and $y eq "b"), $message);
204 ok(($x =~ /a([abc]+)(?{$y=$^N})d/ and $y eq "bc"), $message);
205 ok(($x =~ /a([abcdefg]+)(?{$y=$^N})d/ and $y eq "bc"), $message);
206 ok(($x =~ /(a([abcdefg]+)(?{$y=$^N})d)(?{$z=$^N})e/ and $y eq "bc"
207 and $z eq "abcd"), $message);
208 ok(($x =~ /(a([abcdefg]+)(?{$y=$^N})de)(?{$z=$^N})/ and $y eq "bc"
209 and $z eq "abcde"), $message);
215 ## Should probably put in tests for all the POSIX stuff,
216 ## but not sure how to guarantee a specific locale......
218 my $message = 'Test [[:cntrl:]]';
219 my $AllBytes = join "" => map {chr} 0 .. 255;
220 (my $x = $AllBytes) =~ s/[[:cntrl:]]//g;
221 $x = join "", sort { $a cmp $b }
222 map { chr utf8::native_to_unicode(ord $_) } split "", $x;
223 is($x, join("", map {chr} 0x20 .. 0x7E, 0x80 .. 0xFF), $message);
225 ($x = $AllBytes) =~ s/[^[:cntrl:]]//g;
226 $x = join "", sort { $a cmp $b }
227 map { chr utf8::native_to_unicode(ord $_) } split "", $x;
228 is($x, (join "", map {chr} 0x00 .. 0x1F, 0x7F), $message);
232 # With /s modifier UTF8 chars were interpreted as bytes
233 my $message = "UTF-8 chars aren't bytes";
234 my $a = "Hello \x{263A} World";
235 my @a = ($a =~ /./gs);
236 is($#a, 12, $message);
241 # Check that \x## works. 5.6.1 and 5.005_03 fail some of these.
244 ok ($x =~ /^\x4EE$/, "Check only 2 bytes of hex are matched.");
247 ok ($x =~ /^\x4Ei$/, "Check that invalid hex digit stops it (2)");
250 ok ($x =~ /^\x4j$/, "Check that invalid hex digit stops it (1)");
253 ok ($x =~ /^\xk$/, "Check that invalid hex digit stops it (0)");
256 ok ($x =~ /^\xx$/, "\\xx isn't to be treated as \\0");
259 ok ($x =~ /^\xxa$/, "\\xxa isn't to be treated as \\xa");
262 ok ($x =~ /^\x9_b$/, "\\x9_b isn't to be treated as \\x9b");
264 # and now again in [] ranges
267 ok ($x =~ /^[\x4EE]{2}$/, "Check only 2 bytes of hex are matched.");
270 ok ($x =~ /^[\x4Ei]{2}$/, "Check that invalid hex digit stops it (2)");
273 ok ($x =~ /^[\x4j]{2}$/, "Check that invalid hex digit stops it (1)");
276 ok ($x =~ /^[\xk]{2}$/, "Check that invalid hex digit stops it (0)");
279 ok ($x =~ /^[\xx]{2}$/, "\\xx isn't to be treated as \\0");
282 ok ($x =~ /^[\xxa]{3}$/, "\\xxa isn't to be treated as \\xa");
285 ok ($x =~ /^[\x9_b]{3}$/, "\\x9_b isn't to be treated as \\x9b");
287 # Check that \x{##} works. 5.6.1 fails quite a few of these.
290 ok ($x =~ /^\x{9_b}$/, "\\x{9_b} is to be treated as \\x9b");
293 ok ($x =~ /^\x{9_b}y$/, "\\x{9_b} is to be treated as \\x9b (again)");
296 ok ($x =~ /^\x{9b_}y$/, "\\x{9b_} is to be treated as \\x9b");
299 ok ($x =~ /^\x{9_bq}y$/, "\\x{9_bc} is to be treated as \\x9b");
302 ok ($x =~ /^\x{x9b}y$/, "\\x{x9b} is to be treated as \\x0");
305 ok ($x =~ /^\x{0x9b}y$/, "\\x{0x9b} is to be treated as \\x0");
308 ok ($x =~ /^\x{09b}y$/, "\\x{09b} is to be treated as \\x9b");
311 ok ($x =~ /^[\x{9_b}]$/, "\\x{9_b} is to be treated as \\x9b");
314 ok ($x =~ /^[\x{9_b}y]{2}$/,
315 "\\x{9_b} is to be treated as \\x9b (again)");
318 ok ($x =~ /^[\x{9b_}y]{2}$/, "\\x{9b_} is to be treated as \\x9b");
321 ok ($x =~ /^[\x{9_bq}y]{2}$/, "\\x{9_bc} is to be treated as \\x9b");
324 ok ($x =~ /^[\x{x9b}y]{2}$/, "\\x{x9b} is to be treated as \\x0");
327 ok ($x =~ /^[\x{0x9b}y]{2}$/, "\\x{0x9b} is to be treated as \\x0");
330 ok ($x =~ /^[\x{09b}y]{2}$/, "\\x{09b} is to be treated as \\x9b");
335 # High bit bug -- japhy
337 ok $x =~ /.*?\200/, "High bit fine";
341 # The basic character classes and Unicode
342 ok "\x{0100}" =~ /\w/, 'LATIN CAPITAL LETTER A WITH MACRON in /\w/';
343 ok "\x{0660}" =~ /\d/, 'ARABIC-INDIC DIGIT ZERO in /\d/';
344 ok "\x{1680}" =~ /\s/, 'OGHAM SPACE MARK in /\s/';
348 my $message = "Folding matches and Unicode";
349 like("a\x{100}", qr/A/i, $message);
350 like("A\x{100}", qr/a/i, $message);
351 like("a\x{100}", qr/a/i, $message);
352 like("A\x{100}", qr/A/i, $message);
353 like("\x{101}a", qr/\x{100}/i, $message);
354 like("\x{100}a", qr/\x{100}/i, $message);
355 like("\x{101}a", qr/\x{101}/i, $message);
356 like("\x{100}a", qr/\x{101}/i, $message);
357 like("a\x{100}", qr/A\x{100}/i, $message);
358 like("A\x{100}", qr/a\x{100}/i, $message);
359 like("a\x{100}", qr/a\x{100}/i, $message);
360 like("A\x{100}", qr/A\x{100}/i, $message);
361 like("a\x{100}", qr/[A]/i, $message);
362 like("A\x{100}", qr/[a]/i, $message);
363 like("a\x{100}", qr/[a]/i, $message);
364 like("A\x{100}", qr/[A]/i, $message);
365 like("\x{101}a", qr/[\x{100}]/i, $message);
366 like("\x{100}a", qr/[\x{100}]/i, $message);
367 like("\x{101}a", qr/[\x{101}]/i, $message);
368 like("\x{100}a", qr/[\x{101}]/i, $message);
372 use charnames ':full';
373 my $message = "Folding 'LATIN LETTER A WITH GRAVE'";
375 my $lower = "\N{LATIN SMALL LETTER A WITH GRAVE}";
376 my $UPPER = "\N{LATIN CAPITAL LETTER A WITH GRAVE}";
378 like($lower, qr/$UPPER/i, $message);
379 like($UPPER, qr/$lower/i, $message);
380 like($lower, qr/[$UPPER]/i, $message);
381 like($UPPER, qr/[$lower]/i, $message);
383 $message = "Folding 'GREEK LETTER ALPHA WITH VRACHY'";
385 $lower = "\N{GREEK CAPITAL LETTER ALPHA WITH VRACHY}";
386 $UPPER = "\N{GREEK SMALL LETTER ALPHA WITH VRACHY}";
388 like($lower, qr/$UPPER/i, $message);
389 like($UPPER, qr/$lower/i, $message);
390 like($lower, qr/[$UPPER]/i, $message);
391 like($UPPER, qr/[$lower]/i, $message);
393 $message = "Folding 'LATIN LETTER Y WITH DIAERESIS'";
395 $lower = "\N{LATIN SMALL LETTER Y WITH DIAERESIS}";
396 $UPPER = "\N{LATIN CAPITAL LETTER Y WITH DIAERESIS}";
398 like($lower, qr/$UPPER/i, $message);
399 like($UPPER, qr/$lower/i, $message);
400 like($lower, qr/[$UPPER]/i, $message);
401 like($UPPER, qr/[$lower]/i, $message);
405 use charnames ':full';
406 my $message = "GREEK CAPITAL LETTER SIGMA vs " .
407 "COMBINING GREEK PERISPOMENI";
409 my $SIGMA = "\N{GREEK CAPITAL LETTER SIGMA}";
410 my $char = "\N{COMBINING GREEK PERISPOMENI}";
412 warning_is(sub {unlike("_:$char:_", qr/_:$SIGMA:_/i, $message)}, undef,
413 'Did not warn [change a5961de5f4215b5c]');
418 use charnames ':full';
420 ok("a!" =~ /^(\X)!/ && $1 eq "a", $message);
421 ok("\xDF!" =~ /^(\X)!/ && $1 eq "\xDF", $message);
422 ok("\x{100}!" =~ /^(\X)!/ && $1 eq "\x{100}", $message);
423 ok("\x{100}\x{300}!" =~ /^(\X)!/ && $1 eq "\x{100}\x{300}", $message);
424 ok("\N{LATIN CAPITAL LETTER E}!" =~ /^(\X)!/ &&
425 $1 eq "\N{LATIN CAPITAL LETTER E}", $message);
426 ok("\N{LATIN CAPITAL LETTER E}\N{COMBINING GRAVE ACCENT}!"
428 $1 eq "\N{LATIN CAPITAL LETTER E}\N{COMBINING GRAVE ACCENT}", $message);
433 my $message = "Final Sigma";
435 my $SIGMA = "\x{03A3}"; # CAPITAL
436 my $Sigma = "\x{03C2}"; # SMALL FINAL
437 my $sigma = "\x{03C3}"; # SMALL
439 like($SIGMA, qr/$SIGMA/i, $message);
440 like($SIGMA, qr/$Sigma/i, $message);
441 like($SIGMA, qr/$sigma/i, $message);
443 like($Sigma, qr/$SIGMA/i, $message);
444 like($Sigma, qr/$Sigma/i, $message);
445 like($Sigma, qr/$sigma/i, $message);
447 like($sigma, qr/$SIGMA/i, $message);
448 like($sigma, qr/$Sigma/i, $message);
449 like($sigma, qr/$sigma/i, $message);
451 like($SIGMA, qr/[$SIGMA]/i, $message);
452 like($SIGMA, qr/[$Sigma]/i, $message);
453 like($SIGMA, qr/[$sigma]/i, $message);
455 like($Sigma, qr/[$SIGMA]/i, $message);
456 like($Sigma, qr/[$Sigma]/i, $message);
457 like($Sigma, qr/[$sigma]/i, $message);
459 like($sigma, qr/[$SIGMA]/i, $message);
460 like($sigma, qr/[$Sigma]/i, $message);
461 like($sigma, qr/[$sigma]/i, $message);
463 $message = "More final Sigma";
465 my $S3 = "$SIGMA$Sigma$sigma";
467 ok(":$S3:" =~ /:(($SIGMA)+):/i && $1 eq $S3 && $2 eq $sigma, $message);
468 ok(":$S3:" =~ /:(($Sigma)+):/i && $1 eq $S3 && $2 eq $sigma, $message);
469 ok(":$S3:" =~ /:(($sigma)+):/i && $1 eq $S3 && $2 eq $sigma, $message);
471 ok(":$S3:" =~ /:(([$SIGMA])+):/i && $1 eq $S3 && $2 eq $sigma, $message);
472 ok(":$S3:" =~ /:(([$Sigma])+):/i && $1 eq $S3 && $2 eq $sigma, $message);
473 ok(":$S3:" =~ /:(([$sigma])+):/i && $1 eq $S3 && $2 eq $sigma, $message);
477 use charnames ':full';
478 my $message = "Parlez-Vous " .
479 "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais?";
481 ok("Fran\N{LATIN SMALL LETTER C}ais" =~ /Fran.ais/ &&
482 $& eq "Francais", $message);
483 ok("Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~ /Fran.ais/ &&
484 $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais", $message);
485 ok("Fran\N{LATIN SMALL LETTER C}ais" =~ /Fran\Xais/ &&
486 $& eq "Francais", $message);
487 ok("Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~ /Fran\Xais/ &&
488 $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais", $message);
489 ok("Franc\N{COMBINING CEDILLA}ais" =~ /Fran\Xais/ &&
490 $& eq "Franc\N{COMBINING CEDILLA}ais", $message);
491 ok("Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~
492 /Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais/ &&
493 $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais", $message);
494 ok("Franc\N{COMBINING CEDILLA}ais" =~ /Franc\N{COMBINING CEDILLA}ais/ &&
495 $& eq "Franc\N{COMBINING CEDILLA}ais", $message);
498 ["Fran\N{LATIN SMALL LETTER C}ais", "Francais"],
499 ["Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais",
500 "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais"],
501 ["Franc\N{COMBINING CEDILLA}ais", "Franc\N{COMBINING CEDILLA}ais"],
503 foreach my $entry (@f) {
504 my ($subject, $match) = @$entry;
505 ok($subject =~ /Fran(?:c\N{COMBINING CEDILLA}?|
506 \N{LATIN SMALL LETTER C WITH CEDILLA})ais/x &&
507 $& eq $match, $message);
512 my $message = "Lingering (and useless) UTF8 flag doesn't mess up /i";
514 my $str = "abcDE\x{100}";
516 like($str, qr/$pat/i, $message);
518 $pat = "ABcde\x{100}";
521 like($str, qr/$pat/i, $message);
523 $pat = "ABcde\x{100}";
524 $str = "abcDE\x{100}";
527 like($str, qr/$pat/i, $message);
531 use charnames ':full';
532 my $message = "LATIN SMALL LETTER SHARP S " .
533 "(\N{LATIN SMALL LETTER SHARP S})";
535 like("\N{LATIN SMALL LETTER SHARP S}",
536 qr/\N{LATIN SMALL LETTER SHARP S}/, $message);
537 like("\N{LATIN SMALL LETTER SHARP S}",
538 qr/\N{LATIN SMALL LETTER SHARP S}/i, $message);
539 like("\N{LATIN SMALL LETTER SHARP S}",
540 qr/[\N{LATIN SMALL LETTER SHARP S}]/, $message);
541 like("\N{LATIN SMALL LETTER SHARP S}",
542 qr/[\N{LATIN SMALL LETTER SHARP S}]/i, $message);
544 like("ss", qr /\N{LATIN SMALL LETTER SHARP S}/i, $message);
545 like("SS", qr /\N{LATIN SMALL LETTER SHARP S}/i, $message);
546 like("ss", qr/[\N{LATIN SMALL LETTER SHARP S}]/i, $message);
547 like("SS", qr/[\N{LATIN SMALL LETTER SHARP S}]/i, $message);
549 like("\N{LATIN SMALL LETTER SHARP S}", qr/ss/i, $message);
550 like("\N{LATIN SMALL LETTER SHARP S}", qr/SS/i, $message);
552 $message = "Unoptimized named sequence in class";
553 like("ss", qr/[\N{LATIN SMALL LETTER SHARP S}x]/i, $message);
554 like("SS", qr/[\N{LATIN SMALL LETTER SHARP S}x]/i, $message);
555 like("\N{LATIN SMALL LETTER SHARP S}",
556 qr/[\N{LATIN SMALL LETTER SHARP S}x]/, $message);
557 like("\N{LATIN SMALL LETTER SHARP S}",
558 qr/[\N{LATIN SMALL LETTER SHARP S}x]/i, $message);
562 # More whitespace: U+0085, U+2028, U+2029\n";
564 # U+0085, U+00A0 need to be forced to be Unicode, the \x{100} does that.
565 ok "<\x{100}" . uni_to_native("\x{0085}") . ">" =~ /<\x{100}\s>/, '\x{0085} in \s';
566 ok "<" . uni_to_native("\x{0085}") . ">" =~ /<\v>/, '\x{0085} in \v';
567 ok "<\x{100}" . uni_to_native("\x{00A0}") . ">" =~ /<\x{100}\s>/, '\x{00A0} in \s';
568 ok "<" . uni_to_native("\x{00A0}") . ">" =~ /<\h>/, '\x{00A0} in \h';
569 my @h = map {sprintf "%05x" => $_} 0x01680, 0x02000 .. 0x0200A,
570 0x0202F, 0x0205F, 0x03000;
571 my @v = map {sprintf "%05x" => $_} 0x02028, 0x02029;
573 my @H = map {sprintf "%05x" => $_} 0x01361, 0x0200B, 0x02408, 0x02420,
574 0x0303F, 0xE0020, 0x180E;
575 my @V = map {sprintf "%05x" => $_} 0x0008A .. 0x0008D, 0x00348, 0x10100,
576 0xE005F, 0xE007C, 0x180E;
579 my $str = eval qq ["<\\x{$hex}>"];
580 ok $str =~ /<\s>/, "\\x{$hex} in \\s";
581 ok $str =~ /<\h>/, "\\x{$hex} in \\h";
582 ok $str !~ /<\v>/, "\\x{$hex} not in \\v";
586 my $str = eval qq ["<\\x{$hex}>"];
587 ok $str =~ /<\s>/, "\\x{$hex} in \\s";
588 ok $str =~ /<\v>/, "\\x{$hex} in \\v";
589 ok $str !~ /<\h>/, "\\x{$hex} not in \\h";
593 my $str = eval qq ["<\\x{$hex}>"];
594 ok $str =~ /<\S>/, "\\x{$hex} in \\S";
595 ok $str =~ /<\H>/, "\\x{$hex} in \\H";
599 my $str = eval qq ["<\\x{$hex}>"];
600 ok $str =~ /<\S>/, "\\x{$hex} in \\S";
601 ok $str =~ /<\V>/, "\\x{$hex} in \\V";
606 # . with /s should work on characters, as opposed to bytes
607 my $message = ". with /s works on characters, not bytes";
609 my $s = "\x{e4}\x{100}";
610 # This is not expected to match: the point is that
611 # neither should we get "Malformed UTF-8" warnings.
612 warning_is(sub {$s =~ /\G(.+?)\n/gcs}, undef,
613 "No 'Malformed UTF-8' warning");
616 push @c => $1 while $s =~ /\G(.)/gs;
619 is("@c", $s, $message);
621 # Test only chars < 256
622 my $t1 = "Q003\n\n\x{e4}\x{f6}\n\nQ004\n\n\x{e7}";
624 while ($t1 =~ / \G ( .+? ) \n\s+ ( .+? ) ( $ | \n\s+ ) /xgcs) {
628 my $t2 = $t1 . "\x{100}"; # Repeat with a larger char
630 while ($t2 =~ / \G ( .+? ) \n\s+ ( .+? ) ( $ | \n\s+ ) /xgcs) {
635 is($r1, $r2, $message);
639 my $message = "Unicode lookbehind";
640 like("A\x{100}B" , qr/(?<=A.)B/, $message);
641 like("A\x{200}\x{300}B", qr/(?<=A..)B/, $message);
642 like("\x{400}AB" , qr/(?<=\x{400}.)B/, $message);
643 like("\x{500}\x{600}B" , qr/(?<=\x{500}.)B/, $message);
645 # Original code also contained:
646 # ok "\x{500\x{600}}B" =~ /(?<=\x{500}.)B/;
647 # but that looks like a typo.
651 my $message = 'UTF-8 hash keys and /$/';
652 # http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters
653 # /2002-01/msg01327.html
656 my $v = substr ($u, 0, 1);
657 my $w = substr ($u, 1, 1);
658 my %u = ($u => $u, $v => $v, $w => $w);
660 my $m1 = /^\w*$/ ? 1 : 0;
661 my $m2 = $u {$_} =~ /^\w*$/ ? 1 : 0;
662 is($m1, $m2, $message);
667 my $message = "No SEGV in s/// and UTF-8";
668 my $s = "s#\x{100}" x 4;
669 ok($s =~ s/[^\w]/ /g, $message);
670 if ( 1 or $ENV{PERL_TEST_LEGACY_POSIX_CC} ) {
671 is($s, "s \x{100}" x 4, $message);
674 is($s, "s " x 4, $message);
679 my $message = "UTF-8 bug (maybe already known?)";
682 is($u, "\x{100}\x{100}\x{100}", $message);
685 $u =~ s/[ao]/\x{100}/g;
686 is($u, "f\x{100}\x{100}b\x{100}r", $message);
689 is($u, "feeber", $message);
693 my $message = "UTF-8 bug with s///";
694 # check utf8/non-utf8 mixtures
695 # try to force all float/anchored check combinations
699 for my $re ("xx.*$c", "x.*$c$c", "$c.*xx", "$c$c.*x",
700 "xx.*(?=$c)", "(?=$c).*xx",) {
701 unlike("xxx", qr/$re/, $message);
702 ok(+($subst = "xxx") !~ s/$re//, $message);
704 for my $re ("xx.*$c*", "$c*.*xx") {
705 like("xxx", qr/$re/, $message);
706 ok(+($subst = "xxx") =~ s/$re//, $message);
707 is($subst, "", $message);
709 for my $re ("xxy*", "y*xx") {
710 like("xx$c", qr/$re/, $message);
711 ok(+($subst = "xx$c") =~ s/$re//, $message);
712 is($subst, $c, $message);
713 unlike("xy$c", qr/$re/, $message);
714 ok(+($subst = "xy$c") !~ s/$re//, $message);
716 for my $re ("xy$c*z", "x$c*yz") {
717 like("xyz", qr/$re/, $message);
718 ok(+($subst = "xyz") =~ s/$re//, $message);
719 is($subst, "", $message);
724 # The second half of RT #114808
725 warning_is(sub {'aa' =~ /.+\x{100}/}, undef,
726 'utf8-only floating substr, non-utf8 target, no warning');
730 my $message = "qr /.../x";
731 my $R = qr / A B C # D E/x;
732 ok("ABCDE" =~ $R && $& eq "ABC", $message);
733 ok("ABCDE" =~ /$R/ && $& eq "ABC", $message);
734 ok("ABCDE" =~ m/$R/ && $& eq "ABC", $message);
735 ok("ABCDE" =~ /($R)/ && $1 eq "ABC", $message);
736 ok("ABCDE" =~ m/($R)/ && $1 eq "ABC", $message);
742 utf8::upgrade($_); chop $_; $\="\n";
743 ok /[^\s]+/, 'm/[^\s]/ utf8';
744 ok /[^\d]+/, 'm/[^\d]/ utf8';
745 ok +($a = $_, $_ =~ s/[^\s]+/./g), 's/[^\s]/ utf8';
746 ok +($a = $_, $a =~ s/[^\d]+/./g), 's/[^\s]/ utf8';
750 # Subject: Odd regexp behavior
751 # From: Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>
752 # Date: Wed, 26 Feb 2003 16:53:12 +0000
753 # Message-Id: <E18o4nw-0008Ly-00@wisbech.cl.cam.ac.uk>
754 # To: perl-unicode@perl.org
756 my $message = 'Markus Kuhn 2003-02-26';
758 my $x = "\x{2019}\nk";
759 ok($x =~ s/(\S)\n(\S)/$1 $2/sg, $message);
760 is($x, "\x{2019} k", $message);
763 ok($x =~ s/(\S)\n(\S)/$1 $2/sg, $message);
764 is($x, "b k", $message);
766 like("\x{2019}", qr/\S/, $message);
770 ok "\x{100}\n" =~ /\x{100}\n$/, "UTF-8 length cache and fbm_compile";
775 use overload q /""/ => sub {${$_ [0]};};
776 sub new {my ($c, $v) = @_; bless \$v, $c;}
779 $_ = Str -> new ("a\x{100}/\x{100}b");
780 ok join (":", /\b(.)\x{100}/g) eq "a:/", "re_intuit_start and PL_bostr";
784 my $re = qq /^([^X]*)X/;
786 ok "\x{100}X" =~ /$re/, "S_cl_and ANYOF_UNICODE & ANYOF_INVERTED";
787 my $loc_re = qq /(?l:^([^X]*)X)/;
788 utf8::upgrade ($loc_re);
789 no warnings 'locale';
790 ok "\x{100}X" =~ /$loc_re/, "locale, S_cl_and ANYOF_UNICODE & ANYOF_INVERTED";
794 ok "123\x{100}" =~ /^.*1.*23\x{100}$/,
795 'UTF-8 + multiple floating substr';
799 my $message = '<20030808193656.5109.1@llama.ni-s.u-net.com>';
801 # LATIN SMALL/CAPITAL LETTER A WITH MACRON
802 like(" \x{101}", qr/\x{100}/i, $message);
804 # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW
805 like(" \x{1E01}", qr/\x{1E00}/i, $message);
807 # DESERET SMALL/CAPITAL LETTER LONG I
808 like(" \x{10428}", qr/\x{10400}/i, $message);
810 # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'
811 like(" \x{1E01}x", qr/\x{1E00}X/i, $message);
815 for (120 .. 130, 240 .. 260) {
817 my $message = q [Don't misparse \x{...} in regexp ] .
818 q [near EXACT char count limit];
819 for my $tail ('\x{0061}', '\x{1234}', '\x61') {
820 eval qq{like("$head$tail", qr/$head$tail/, \$message)};
821 is($@, '', $message);
823 $message = q [Don't misparse \N{...} in regexp ] .
824 q [near EXACT char count limit];
825 for my $tail ('\N{SNOWFLAKE}') {
826 eval qq {use charnames ':full';
827 like("$head$tail", qr/$head$tail/, \$message)};
828 is($@, '', $message);
835 "words" =~ /(word|word|word)(?{push @got, $1})s$/;
836 is(@got, 1, "TRIE optimisation");
839 "words" =~ /(word|word|word)(?{push @got,$1})s$/i;
840 is(@got, 1,"TRIEF optimisation");
842 my @nums = map {int rand 1000} 1 .. 100;
843 my $re = "(" . (join "|", @nums) . ")";
847 ok $_ =~ /$re/, "Trie nums";
850 $_ = join " ", @nums;
852 push @got, $1 while /$re/g;
855 $count {$_} ++ for @got;
858 $ok = 0 if --$count {$_} < 0;
860 ok $ok, "Trie min count matches";
865 # LATIN SMALL/CAPITAL LETTER A WITH MACRON
866 ok "foba \x{101}foo" =~ qr/(foo|\x{100}foo|bar)/i &&
868 "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH MACRON";
870 # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW
871 ok "foba \x{1E01}foo" =~ qr/(foo|\x{1E00}foo|bar)/i &&
873 "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH RING BELOW";
875 # DESERET SMALL/CAPITAL LETTER LONG I
876 ok "foba \x{10428}foo" =~ qr/(foo|\x{10400}foo|bar)/i &&
877 $1 eq "\x{10428}foo",
878 "TRIEF + DESERET SMALL/CAPITAL LETTER LONG I";
880 # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'
881 ok "foba \x{1E01}xfoo" =~ qr/(foo|\x{1E00}Xfoo|bar)/i &&
882 $1 eq "\x{1E01}xfoo",
883 "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'";
885 use charnames ':full';
887 my $s = "\N{LATIN SMALL LETTER SHARP S}";
888 ok "foba ba$s" =~ qr/(foo|Ba$s|bar)/i && $1 eq "ba$s",
889 "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
890 ok "foba ba$s" =~ qr/(Ba$s|foo|bar)/i && $1 eq "ba$s",
891 "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
892 ok "foba ba$s" =~ qr/(foo|bar|Ba$s)/i && $1 eq "ba$s",
893 "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
895 ok "foba ba$s" =~ qr/(foo|Bass|bar)/i && $1 eq "ba$s",
896 "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
898 ok "foba ba$s" =~ qr/(foo|BaSS|bar)/i && $1 eq "ba$s",
899 "TRIEF + LATIN SMALL LETTER SHARP S =~ SS";
901 ok "foba ba${s}pxySS$s$s" =~ qr/(b(?:a${s}t|a${s}f|a${s}p)[xy]+$s*)/i
902 && $1 eq "ba${s}pxySS$s$s",
903 "COMMON PREFIX TRIEF + LATIN SMALL LETTER SHARP S";
912 ok 'fooB' =~ /\N{foo}[\N{B}\N{b}]/, "Passthrough charname";
913 my $name = "foo\xDF";
914 my $result = eval "'A${name}B' =~ /^A\\N{$name}B\$/";
915 ok !$@ && $result, "Passthrough charname of non-ASCII, Latin1";
917 # Why doesn't must_warn work here?
920 local $SIG {__WARN__} = sub {$w .= "@_"};
921 $result = eval 'q(WARN) =~ /^[\N{WARN}]$/';
922 ok !$@ && $result && ! $w, '\N{} returning multi-char works';
925 eval q [ok "\0" !~ /[\N{EMPTY-STR}XY]/,
926 "Zerolength charname in charclass doesn't match \\\\0"];
927 ok $w && $w =~ /Ignoring zero length/,
928 'Ignoring zero length \N{} in character class warning';
930 eval q [ok 'xy' =~ /x[\N{EMPTY-STR} y]/x,
931 'Empty string charname in [] is ignored; finds a following character'];
932 ok $w && $w =~ /Ignoring zero length/,
933 'Ignoring zero length \N{} in character class warning';
935 eval q [ok 'x ' =~ /x[\N{EMPTY-STR} y]/,
936 'Empty string charname in [] is ignored; finds a following blank under /x'];
937 ok $w && $w =~ /Ignoring zero length/,
938 'Ignoring zero length \N{} in character class warning';
940 ok 'AB' =~ /(\N{EVIL})/ && $1 eq 'A', 'Charname caching $1';
941 ok 'ABC' =~ /(\N{EVIL})/, 'Charname caching $1';
942 ok 'xy' =~ /x\N{EMPTY-STR}y/,
943 'Empty string charname produces NOTHING node';
944 ok '' =~ /\N{EMPTY-STR}/,
945 'Empty string charname produces NOTHING node';
946 ok "\N{LONG-STR}" =~ /^\N{LONG-STR}$/, 'Verify that long string works';
947 ok "\N{LONG-STR}" =~ /^\N{LONG-STR}$/i, 'Verify under folding that long string works';
949 eval '/(?[[\N{EMPTY-STR}]])/';
950 ok $@ && $@ =~ /Zero length \\N\{}/;
954 () = eval q ["\N{TOO MANY SPACES}"];
955 like ($@, qr/charnames alias definitions may not contain a sequence of multiple spaces/, "Multiple spaces in a row in a charnames alias is fatal");
956 eval q [use utf8; () = "\N{TOO MANY SPACES}"];
957 like ($@, qr/charnames alias definitions may not contain a sequence of multiple spaces/, "... same under utf8");
962 () = eval q ["\N{TRAILING SPACE }"];
963 like ($@, qr/charnames alias definitions may not contain trailing white-space/, "Trailing white-space in a charnames alias is fatal");
964 eval q [use utf8; () = "\N{TRAILING SPACE }"];
965 like ($@, qr/charnames alias definitions may not contain trailing white-space/, "... same under utf8");
969 my $Cedilla_Latin1 = "GAR"
970 . uni_to_native("\xC7")
972 my $Cedilla_utf8 = $Cedilla_Latin1;
973 utf8::upgrade($Cedilla_utf8);
974 eval qq[is("\\N{$Cedilla_Latin1}", "$Cedilla_Latin1", "A cedilla in character name works")];
977 use feature 'unicode_eval';
978 eval qq[use utf8; is("\\N{$Cedilla_utf8}", "$Cedilla_utf8", "... same under 'use utf8': they work")];
982 my $NBSP_Latin1 = "NBSP"
983 . uni_to_native("\xA0")
985 . uni_to_native("\xA0")
987 my $NBSP_utf8 = $NBSP_Latin1;
988 utf8::upgrade($NBSP_utf8);
989 eval qq[is("\\N{$NBSP_Latin1}", "$NBSP_Latin1", "An NBSP in character name works")];
990 like ($w, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "... but returns a deprecation warning");
993 use feature 'unicode_eval';
994 eval qq[use utf8; is("\\N{$NBSP_utf8}", "$NBSP_utf8", "Same under 'use utf8': they work")];
995 like ($w, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "... but return a deprecation warning");
998 # disable lexical warnings
999 BEGIN { ${^WARNING_BITS} = undef; $^W = 0 }
1001 () = eval qq["\\N{$NBSP_Latin1}"];
1002 like ($w, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "And returns a deprecation warning outside of lexical warnings");
1004 use feature 'unicode_eval';
1005 eval qq[use utf8; () = "\\N{$NBSP_utf8}"];
1006 like ($w, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "... same under utf8");
1009 no warnings 'deprecated';
1011 eval qq["\\N{$NBSP_Latin1}"];
1012 ok (! defined $w, "... and no warning if warnings are off");
1013 use feature 'unicode_eval';
1014 eval qq[use utf8; "\\N{$NBSP_utf8}"];
1015 ok (! defined $w, "... same under 'use utf8'");
1018 use warnings FATAL=>'deprecated';
1019 () = eval qq["\\N{$NBSP_Latin1}"];
1020 like ($@, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "... the warning can be fatal");
1021 use feature 'unicode_eval';
1022 eval qq[use utf8; () = "\\N{$NBSP_utf8}"];
1023 like ($@, qr/NO-BREAK SPACE in a charnames alias definition is deprecated/, "... same under utf8");
1027 BEGIN { no strict; *CnameTest:: = *{"_charnames\0A::" } }
1028 package CnameTest { sub translator { pop } }
1029 BEGIN { $^H{charnames} = \&CnameTest::translator }
1031 () = eval q ["\N{TOO MANY SPACES}"];
1032 like ($@, qr/charnames alias definitions may not contain a sequence of multiple spaces/,
1033 'translators in _charnames\0* packages get validated');
1036 # If remove the limitation in regcomp code these should work
1039 eval q [ok "\N{TOO-LONG-STR}" =~ /^\N{TOO-LONG-STR}$/, 'Verify that what once was too long a string works'];
1040 eval 'q() =~ /\N{4F}/';
1041 ok $@ && $@ =~ /Invalid character/, 'Verify that leading digit in name gives error';
1042 eval 'q() =~ /\N{COM,MA}/';
1043 ok $@ && $@ =~ /Invalid character/, 'Verify that comma in name gives error';
1044 $name = "A" . uni_to_native("\x{D7}") . "O";
1045 eval "q(W) =~ /\\N{$name}/";
1046 ok $@ && $@ =~ /Invalid character/, 'Verify that latin1 symbol in name gives error';
1047 my $utf8_name = "7 CITIES OF GOLD";
1048 utf8::upgrade($utf8_name);
1049 eval "use utf8; q(W) =~ /\\N{$utf8_name}/";
1050 ok $@ && $@ =~ /Invalid character/, 'Verify that leading digit in utf8 name gives error';
1051 $utf8_name = "SHARP #";
1052 utf8::upgrade($utf8_name);
1053 eval "use utf8; q(W) =~ /\\N{$utf8_name}/";
1054 ok $@ && $@ =~ /Invalid character/, 'Verify that ASCII symbol in utf8 name gives error';
1055 $utf8_name = "A HOUSE " . uni_to_native("\xF7") . " AGAINST ITSELF";
1056 utf8::upgrade($utf8_name);
1057 eval "use utf8; q(W) =~ /\\N{$utf8_name}/";
1058 ok $@ && $@ =~ /Invalid character/, 'Verify that latin1 symbol in utf8 name gives error';
1059 $utf8_name = "\x{664} HORSEMEN}";
1060 eval "use utf8; q(W) =~ /\\N{$utf8_name}/";
1061 ok $@ && $@ =~ /Invalid character/, 'Verify that leading above Latin1 digit in utf8 name gives error';
1062 $utf8_name = "A \x{1F4A9} WOULD SMELL AS SWEET}";
1063 eval "use utf8; q(W) =~ /\\N{$utf8_name}/";
1064 ok $@ && $@ =~ /Invalid character/, 'Verify that above Latin1 symbol in utf8 name gives error';
1067 $name = "A" . uni_to_native("\x{D1}") . "O";
1068 eval "q(W) =~ /\\N{$name}/";
1069 ok ! $w, 'Verify that latin1 letter in name doesnt give warning';
1071 # This tests the code path that restarts the parse when the recursive
1072 # call to S_reg() from within S_grok_bslash_N() discovers that the
1073 # pattern needs to be recalculated as UTF-8. use eval to avoid
1074 # needing literal Unicode in this source file:
1075 my $r = eval "qr/\\N{\x{100}\x{100}}/";
1076 isnt $r, undef, "Generated regex for multi-char UTF-8 charname"
1078 ok "\x{100}\x{100}" =~ $r, "which matches";
1082 use charnames ':full';
1084 ok 'aabc' !~ /a\N{PLUS SIGN}b/, '/a\N{PLUS SIGN}b/ against aabc';
1085 ok 'a+bc' =~ /a\N{PLUS SIGN}b/, '/a\N{PLUS SIGN}b/ against a+bc';
1087 ok ' A B' =~ /\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}/,
1088 'Intermixed named and unicode escapes';
1089 ok "\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}" =~
1090 /\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}/,
1091 'Intermixed named and unicode escapes';
1092 ok "\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}" =~
1093 /[\N{SPACE}\N{U+0041}][\N{SPACE}\N{U+0042}]/,
1094 'Intermixed named and unicode escapes';
1095 ok "\0" =~ /^\N{NULL}$/, 'Verify that \N{NULL} works; is not confused with an error';
1101 { (?> [^{}]+ | (??{ $brackets }) )* }
1104 ok "{b{c}d" !~ m/^((??{ $brackets }))/, "Bracket mismatch";
1116 <<stuff1>and<stuff2>><<<<right>>>>
1119 local $_ = '<<<stuff1>and<stuff2>><<<<right>>>>>';
1120 ok /^(<((?:(?>[^<>]+)|(?1))*)>(?{push @stack, $2 }))$/,
1121 "Recursion matches";
1122 is(@stack, @expect, "Right amount of matches")
1123 or skip "Won't test individual results as count isn't equal",
1126 foreach my $expect (@expect) {
1127 is($stack [$idx], $expect,
1128 "Expecting '$expect' at stack pos #$idx");
1135 my $s = '123453456';
1136 $s =~ s/(?<digits>\d+)\k<digits>/$+{digits}/;
1137 ok $s eq '123456', 'Named capture (angle brackets) s///';
1139 $s =~ s/(?'digits'\d+)\k'digits'/$+{digits}/;
1140 ok $s eq '123456', 'Named capture (single quotes) s///';
1145 pack('U', 0x00F1), # n-tilde
1146 '_'.pack('U', 0x00F1), # _ + n-tilde
1147 'c'.pack('U', 0x0327), # c + cedilla
1148 pack('U*', 0x00F1, 0x0327),# n-tilde + cedilla
1149 pack('U', 0x0391), # ALPHA
1150 pack('U', 0x0391).'2', # ALPHA + 2
1151 pack('U', 0x0391).'_', # ALPHA + _
1154 for my $uni (@ary) {
1155 my ($r1, $c1, $r2, $c2) = eval qq {
1157 scalar ("..foo foo.." =~ /(?'${uni}'foo) \\k'${uni}'/),
1159 scalar ("..bar bar.." =~ /(?<${uni}>bar) \\k<${uni}>/),
1162 ok $r1, "Named capture UTF (?'')";
1163 ok defined $c1 && $c1 eq 'foo', "Named capture UTF \%+";
1164 ok $r2, "Named capture UTF (?<>)";
1165 ok defined $c2 && $c2 eq 'bar', "Named capture UTF \%+";
1170 my $s = 'foo bar baz';
1172 if ('1234' =~ /(?<A>1)(?<B>2)(?<A>3)(?<B>4)/) {
1173 foreach my $name (sort keys(%-)) {
1174 my $ary = $- {$name};
1175 foreach my $idx (0 .. $#$ary) {
1176 push @res, "$name:$idx:$ary->[$idx]";
1180 my @expect = qw (A:0:1 A:1:3 B:0:2 B:1:4);
1181 is("@res", "@expect", "Check %-");
1183 no warnings "uninitialized";
1184 print for $- {this_key_doesnt_exist};
1186 ok !$@,'lvalue $- {...} should not throw an exception';
1191 no warnings qw{deprecated regexp};
1192 ok "xaaay" !~ /xa{3\,4}y/, '\, in a pattern';
1193 ok "xa{3,4}y" =~ /xa{3\,4}y/, '\, in a pattern';
1196 ok "x\c_y" !~ /x\c\_y/, '\_ in a pattern';
1197 ok "x\c\_y" =~ /x\c\_y/, '\_ in a pattern';
1199 # \c\ followed by other characters
1200 for my $c ("z", "\0", "!", chr(254), chr(256)) {
1201 my $targ = "a" . uni_to_native("\034") . "$c";
1202 my $reg = "a\\c\\$c";
1203 ok eval ("qq/$targ/ =~ /$reg/"), "\\c\\ in pattern";
1207 { # Test the (*PRUNE) pattern
1209 'aaab' =~ /a+b?(?{$count++})(*FAIL)/;
1210 is($count, 9, "Expect 9 for no (*PRUNE)");
1212 'aaab' =~ /a+b?(*PRUNE)(?{$count++})(*FAIL)/;
1213 is($count, 3, "Expect 3 with (*PRUNE)");
1216 1 while /.(*PRUNE)(?{$count++})(*FAIL)/g;
1217 is($count, 4, "/.(*PRUNE)/");
1219 'aaab' =~ /a+b?(??{'(*PRUNE)'})(?{$count++})(*FAIL)/;
1220 is($count, 3, "Expect 3 with (*PRUNE)");
1223 1 while /.(??{'(*PRUNE)'})(?{$count++})(*FAIL)/g;
1224 is($count, 4, "/.(*PRUNE)/");
1227 { # Test the (*SKIP) pattern
1229 'aaab' =~ /a+b?(*SKIP)(?{$count++})(*FAIL)/;
1230 is($count, 1, "Expect 1 with (*SKIP)");
1233 1 while /.(*SKIP)(?{$count++})(*FAIL)/g;
1234 is($count, 4, "/.(*SKIP)/");
1238 1 while /(a+b?)(*SKIP)(?{$count++; push @res,$1})(*FAIL)/g;
1239 is($count, 2, "Expect 2 with (*SKIP)");
1240 is("@res", "aaab aaab", "Adjacent (*SKIP) works as expected");
1243 { # Test the (*SKIP) pattern
1245 'aaab' =~ /a+b?(*MARK:foo)(*SKIP)(?{$count++})(*FAIL)/;
1246 is($count, 1, "Expect 1 with (*SKIP)");
1249 1 while /.(*MARK:foo)(*SKIP)(?{$count++})(*FAIL)/g;
1250 is($count, 4, "/.(*SKIP)/");
1254 1 while /(a+b?)(*MARK:foo)(*SKIP)(?{$count++; push @res,$1})(*FAIL)/g;
1255 is($count, 2, "Expect 2 with (*SKIP)");
1256 is("@res", "aaab aaab", "Adjacent (*SKIP) works as expected");
1259 { # Test the (*SKIP) pattern
1261 'aaab' =~ /a*(*MARK:a)b?(*MARK:b)(*SKIP:a)(?{$count++})(*FAIL)/;
1262 is($count, 3, "Expect 3 with *MARK:a)b?(*MARK:b)(*SKIP:a)");
1263 local $_ = 'aaabaaab';
1267 /(a*(*MARK:a)b?)(*MARK:x)(*SKIP:a)(?{$count++; push @res,$1})(*FAIL)/g;
1268 is($count, 5, "Expect 5 with (*MARK:a)b?)(*MARK:x)(*SKIP:a)");
1269 is("@res", "aaab b aaab b ",
1270 "Adjacent (*MARK:a)b?)(*MARK:x)(*SKIP:a) works as expected");
1273 { # Test the (*COMMIT) pattern
1275 'aaabaaab' =~ /a+b?(*COMMIT)(?{$count++})(*FAIL)/;
1276 is($count, 1, "Expect 1 with (*COMMIT)");
1279 1 while /.(*COMMIT)(?{$count++})(*FAIL)/g;
1280 is($count, 1, "/.(*COMMIT)/");
1284 1 while /(a+b?)(*COMMIT)(?{$count++; push @res,$1})(*FAIL)/g;
1285 is($count, 1, "Expect 1 with (*COMMIT)");
1286 is("@res", "aaab", "Adjacent (*COMMIT) works as expected");
1288 ok("1\n2a\n" !~ /^\d+(*COMMIT)\w+/m, "COMMIT and anchors");
1292 # Test named commits and the $REGERROR var
1294 for my $name ('', ':foo') {
1295 for my $pat ("(*PRUNE$name)",
1296 ($name ? "(*MARK$name)" : "") . "(*SKIP$name)",
1298 for my $suffix ('(*FAIL)', '') {
1299 'aaaab' =~ /a+b$pat$suffix/;
1301 ($suffix ? ($name ? 'foo' : "1") : ""),
1302 "Test $pat and \$REGERROR $suffix");
1309 # Test named commits and the $REGERROR var
1313 for my $name ('', ':foo') {
1314 for my $pat ("(*PRUNE$name)",
1315 ($name ? "(*MARK$name)" : "") . "(*SKIP$name)",
1317 for my $suffix ('(*FAIL)','') {
1318 'aaaab' =~ /a+b$pat$suffix/;
1320 ($suffix ? ($name ? 'foo' : "1") : ""),
1321 "Test $pat and \$REGERROR $suffix");
1328 # Test named commits and the $REGERROR var
1329 my $message = '$REGERROR';
1331 for my $word (qw (bar baz bop)) {
1334 /a+(?:bar(*COMMIT:bar)|baz(*COMMIT:baz)|bop(*COMMIT:bop))(*FAIL)/;
1335 is($REGERROR, $word, $message);
1340 #Mindnumbingly simple test of (*THEN)
1342 ok /A (*THEN) X | B (*THEN) C/x, "Simple (*THEN) test";
1347 my $message = "Relative Recursion";
1348 my $parens = qr/(\((?:[^()]++|(?-1))*+\))/;
1349 local $_ = 'foo((2*3)+4-3) + bar(2*(3+4)-1*(2-3))';
1350 my ($all, $one, $two) = ('', '', '');
1351 ok(m/foo $parens \s* \+ \s* bar $parens/x, $message);
1352 is($1, '((2*3)+4-3)', $message);
1353 is($2, '(2*(3+4)-1*(2-3))', $message);
1354 is($&, 'foo((2*3)+4-3) + bar(2*(3+4)-1*(2-3))', $message);
1355 is($&, $_, $message);
1360 local $_ = join 'bar', $spaces, $spaces;
1362 s/(?>\s+bar)(?{$count++})//g;
1363 is($_, $spaces, "SUSPEND final string");
1364 is($count, 1, "Optimiser should have prevented more than one match");
1368 # From Message-ID: <877ixs6oa6.fsf@k75.linux.bogus>
1369 my $dow_name = "nada";
1370 my $parser = "(\$dow_name) = \$time_string =~ /(D\x{e9}\\ " .
1371 "C\x{e9}adaoin|D\x{e9}\\ Sathairn|\\w+|\x{100})/";
1372 my $time_string = "D\x{e9} C\x{e9}adaoin";
1374 ok !$@, "Test Eval worked";
1375 is($dow_name, $time_string, "UTF-8 trie common prefix extraction");
1380 ($v = 'bar') =~ /(\w+)/g;
1383 '$1 is safe after /g - may fail due to specialized config in pp_hot.c');
1387 my $message = "http://nntp.perl.org/group/perl.perl5.porters/118663";
1388 my $qr_barR1 = qr/(bar)\g-1/;
1389 like("foobarbarxyz", $qr_barR1, $message);
1390 like("foobarbarxyz", qr/foo${qr_barR1}xyz/, $message);
1391 like("foobarbarxyz", qr/(foo)${qr_barR1}xyz/, $message);
1392 like("foobarbarxyz", qr/(foo)(bar)\g{-1}xyz/, $message);
1393 like("foobarbarxyz", qr/(foo${qr_barR1})xyz/, $message);
1394 like("foobarbarxyz", qr/(foo(bar)\g{-1})xyz/, $message);
1398 my $message = '$REGMARK';
1402 like('foofoo', qr/foo (*MARK:foo) (?{push @r,$REGMARK}) /x, $message);
1403 is("@r","foo", $message);
1404 is($REGMARK, "foo", $message);
1405 unlike('foofoo', qr/foo (*MARK:foo) (*FAIL) /x, $message);
1406 is($REGMARK, '', $message);
1407 is($REGERROR, 'foo', $message);
1411 my $message = '\K test';
1413 $x = "abc.def.ghi.jkl";
1415 is($x, "abc.def.ghi", $message);
1417 $x = "one two three four";
1418 $x =~ s/o+ \Kthree//g;
1419 is($x, "one two four", $message);
1423 is($x, "aabbccddee", $message);
1428 return '4' if $_[0] eq '09028623';
1430 # Nested EVAL using PL_curpm (via $1 or friends)
1432 our $grabit = qr/ ([0-6][0-9]{7}) (??{ kt $1 }) [890] /x;
1433 $re = qr/^ ( (??{ $grabit }) ) $ /x;
1434 my @res = '0902862349' =~ $re;
1435 is(join ("-", @res), "0902862349",
1436 'PL_curpm is set properly on nested eval');
1438 our $qr = qr/ (o) (??{ $1 }) /x;
1439 ok 'boob'=~/( b (??{ $qr }) b )/x && 1, "PL_curpm, nested eval";
1443 use charnames ":full";
1444 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Alphabetic}/, "I =~ Alphabetic";
1445 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Uppercase}/, "I =~ Uppercase";
1446 ok "\N{ROMAN NUMERAL ONE}" !~ /\p{Lowercase}/, "I !~ Lowercase";
1447 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{IDStart}/, "I =~ ID_Start";
1448 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{IDContinue}/, "I =~ ID_Continue";
1449 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Alphabetic}/, "i =~ Alphabetic";
1450 ok "\N{SMALL ROMAN NUMERAL ONE}" !~ /\p{Uppercase}/, "i !~ Uppercase";
1451 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Uppercase}/i, "i =~ Uppercase under /i";
1452 ok "\N{SMALL ROMAN NUMERAL ONE}" !~ /\p{Titlecase}/, "i !~ Titlecase";
1453 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Titlecase}/i, "i =~ Titlecase under /i";
1454 ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Lowercase}/i, "I =~ Lowercase under /i";
1456 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Lowercase}/, "i =~ Lowercase";
1457 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{IDStart}/, "i =~ ID_Start";
1458 ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{IDContinue}/, "i =~ ID_Continue"
1461 { # More checking that /i works on the few properties that it makes a
1462 # difference. Uppercase, Lowercase, and Titlecase were done in the
1464 ok "A" =~ /\p{PosixUpper}/, "A =~ PosixUpper";
1465 ok "A" =~ /\p{PosixUpper}/i, "A =~ PosixUpper under /i";
1466 ok "A" !~ /\p{PosixLower}/, "A !~ PosixLower";
1467 ok "A" =~ /\p{PosixLower}/i, "A =~ PosixLower under /i";
1468 ok "a" !~ /\p{PosixUpper}/, "a !~ PosixUpper";
1469 ok "a" =~ /\p{PosixUpper}/i, "a =~ PosixUpper under /i";
1470 ok "a" =~ /\p{PosixLower}/, "a =~ PosixLower";
1471 ok "a" =~ /\p{PosixLower}/i, "a =~ PosixLower under /i";
1473 ok uni_to_native("\xC0") =~ /\p{XPosixUpper}/, "\\xC0 =~ XPosixUpper";
1474 ok uni_to_native("\xC0") =~ /\p{XPosixUpper}/i, "\\xC0 =~ XPosixUpper under /i";
1475 ok uni_to_native("\xC0") !~ /\p{XPosixLower}/, "\\xC0 !~ XPosixLower";
1476 ok uni_to_native("\xC0") =~ /\p{XPosixLower}/i, "\\xC0 =~ XPosixLower under /i";
1477 ok uni_to_native("\xE0") !~ /\p{XPosixUpper}/, "\\xE0 !~ XPosixUpper";
1478 ok uni_to_native("\xE0") =~ /\p{XPosixUpper}/i, "\\xE0 =~ XPosixUpper under /i";
1479 ok uni_to_native("\xE0") =~ /\p{XPosixLower}/, "\\xE0 =~ XPosixLower";
1480 ok uni_to_native("\xE0") =~ /\p{XPosixLower}/i, "\\xE0 =~ XPosixLower under /i";
1482 ok uni_to_native("\xC0") =~ /\p{UppercaseLetter}/, "\\xC0 =~ UppercaseLetter";
1483 ok uni_to_native("\xC0") =~ /\p{UppercaseLetter}/i, "\\xC0 =~ UppercaseLetter under /i";
1484 ok uni_to_native("\xC0") !~ /\p{LowercaseLetter}/, "\\xC0 !~ LowercaseLetter";
1485 ok uni_to_native("\xC0") =~ /\p{LowercaseLetter}/i, "\\xC0 =~ LowercaseLetter under /i";
1486 ok uni_to_native("\xC0") !~ /\p{TitlecaseLetter}/, "\\xC0 !~ TitlecaseLetter";
1487 ok uni_to_native("\xC0") =~ /\p{TitlecaseLetter}/i, "\\xC0 =~ TitlecaseLetter under /i";
1488 ok uni_to_native("\xE0") !~ /\p{UppercaseLetter}/, "\\xE0 !~ UppercaseLetter";
1489 ok uni_to_native("\xE0") =~ /\p{UppercaseLetter}/i, "\\xE0 =~ UppercaseLetter under /i";
1490 ok uni_to_native("\xE0") =~ /\p{LowercaseLetter}/, "\\xE0 =~ LowercaseLetter";
1491 ok uni_to_native("\xE0") =~ /\p{LowercaseLetter}/i, "\\xE0 =~ LowercaseLetter under /i";
1492 ok uni_to_native("\xE0") !~ /\p{TitlecaseLetter}/, "\\xE0 !~ TitlecaseLetter";
1493 ok uni_to_native("\xE0") =~ /\p{TitlecaseLetter}/i, "\\xE0 =~ TitlecaseLetter under /i";
1494 ok "\x{1C5}" !~ /\p{UppercaseLetter}/, "\\x{1C5} !~ UppercaseLetter";
1495 ok "\x{1C5}" =~ /\p{UppercaseLetter}/i, "\\x{1C5} =~ UppercaseLetter under /i";
1496 ok "\x{1C5}" !~ /\p{LowercaseLetter}/, "\\x{1C5} !~ LowercaseLetter";
1497 ok "\x{1C5}" =~ /\p{LowercaseLetter}/i, "\\x{1C5} =~ LowercaseLetter under /i";
1498 ok "\x{1C5}" =~ /\p{TitlecaseLetter}/, "\\x{1C5} =~ TitlecaseLetter";
1499 ok "\x{1C5}" =~ /\p{TitlecaseLetter}/i, "\\x{1C5} =~ TitlecaseLetter under /i";
1503 # requirement of Unicode Technical Standard #18, 1.7 Code Points
1504 # cf. http://www.unicode.org/reports/tr18/#Supplementary_Characters
1505 for my $u (0x7FF, 0x800, 0xFFFF, 0x10000) {
1506 no warnings 'utf8'; # oops
1508 my $x = sprintf '%04X', $u;
1509 ok "A${c}B" =~ /A[\0-\x{10000}]B/, "Unicode range - $x";
1516 if ('1' =~ /(?|(?<digit>1)|(?<digit>2))/) {
1517 $res = "@{$- {digit}}";
1520 "Check that (?|...) doesnt cause dupe entries in the names array");
1523 if ('11' =~ /(?|(?<digit>1)|(?<digit>2))(?&digit)/) {
1524 $res = "@{$- {digit}}";
1527 "Check that (?&..) to a buffer inside a (?|...) goes to the leftmost");
1532 my $message = "ASCII pattern that really is UTF-8";
1534 local $SIG {__WARN__} = sub {push @w, "@_"};
1535 my $c = qq (\x{DF});
1536 like($c, qr/${c}|\x{100}/, $message);
1537 is("@w", '', $message);
1541 my $message = "Corruption of match results of qr// across scopes";
1542 my $qr = qr/(fo+)(ba+r)/;
1544 is("$1$2", "foobar", $message);
1546 'foooooobaaaaar' =~ /$qr/;
1547 is("$1$2", 'foooooobaaaaar', $message);
1549 is("$1$2", "foobar", $message);
1553 my $message = "HORIZWS";
1554 local $_ = "\t \r\n \n \t".chr(11)."\n";
1557 is($_, "hhHHhHhhHH", $message);
1558 $_ = "\t \r\n \n \t" . chr (11) . "\n";
1562 is($_, "hhHHhHhhHH", $message);
1566 # Various whitespace special patterns
1567 my @h = map {chr utf8::unicode_to_native($_) }
1568 0x09, 0x20, 0xa0, 0x1680, 0x2000,
1569 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006,
1570 0x2007, 0x2008, 0x2009, 0x200a, 0x202f, 0x205f,
1572 my @v = map {chr utf8::unicode_to_native($_) }
1573 0x0a, 0x0b, 0x0c, 0x0d, 0x85, 0x2028,
1575 my @lb = (uni_to_native("\x0D\x0A"),
1576 map {chr utf8::unicode_to_native($_) }
1577 0x0A .. 0x0D, 0x85, 0x2028, 0x2029);
1578 foreach my $t ([\@h, qr/\h/, qr/\h+/],
1579 [\@v, qr/\v/, qr/\v+/],
1580 [\@lb, qr/\R/, qr/\R+/],) {
1581 my $ary = shift @$t;
1582 foreach my $pat (@$t) {
1583 foreach my $str (@$ary) {
1584 my $temp_str = $str;
1585 $temp_str = display($temp_str);
1586 ok $str =~ /($pat)/, $temp_str . " =~ /($pat)";
1588 is($1, $str, "\$1='" . display($temp_1) . "' eq '" . $temp_str . "' after ($pat)");
1589 utf8::upgrade ($str);
1590 ok $str =~ /($pat)/, "Upgraded " . $temp_str . " =~ /($pat)/";
1591 is($1, $str, "\$1='" . display($temp_1) . "' eq '" . $temp_str . "'(upgraded) after ($pat)");
1598 # Check that \\xDF match properly in its various forms
1599 # Test that \xDF matches properly. this is pretty hacky stuff,
1600 # but its actually needed. The malarky with '-' is to prevent
1601 # compilation caching from playing any role in the test.
1602 my @df = (chr utf8::unicode_to_native(0xDF), '-', chr utf8::unicode_to_native(0xDF));
1603 utf8::upgrade ($df [2]);
1604 my @strs = ('ss', 'sS', 'Ss', 'SS', chr utf8::unicode_to_native(0xDF));
1605 my @ss = map {("$_", "$_")} @strs;
1606 utf8::upgrade ($ss [$_ * 2 + 1]) for 0 .. $#strs;
1608 for my $ssi (0 .. $#ss) {
1609 for my $dfi (0 .. $#df) {
1610 my $pat = $df [$dfi];
1611 my $str = $ss [$ssi];
1612 my $utf_df = ($dfi > 1) ? 'utf8' : '';
1613 my $utf_ss = ($ssi % 2) ? 'utf8' : '';
1614 my $sstr; # We hard-code the ebcdic value below to avoid
1615 # perturbing the test
1616 ($sstr = $str) =~ s/\xDF/\\xDF/ if $::IS_ASCII;
1617 ($sstr = $str) =~ s/\x59/\\x59/ if $::IS_EBCDIC;
1619 if ($utf_df || $utf_ss || length ($ss [$ssi]) == 1) {
1620 my $ret = $str =~ /$pat/i;
1621 next if $pat eq '-';
1623 ok $ret, "\"$sstr\" =~ /\\xDF/i " .
1624 "(str is @{[$utf_ss||'latin']}, pat is " .
1625 "@{[$utf_df||'latin']})";
1628 ok $ret, "\"$sstr\" =~ /\\x59/i " .
1629 "(str is @{[$utf_ss||'latin']}, pat is " .
1630 "@{[$utf_df||'latin']})";
1634 my $ret = $str !~ /$pat/i;
1635 next if $pat eq '-';
1637 ok $ret, "\"$sstr\" !~ /\\x59/i " .
1638 "(str is @{[$utf_ss||'latin']}, pat is " .
1639 "@{[$utf_df||'latin']})";
1642 ok $ret, "\"$sstr\" !~ /\\xDF/i " .
1643 "(str is @{[$utf_ss||'latin']}, pat is " .
1644 "@{[$utf_df||'latin']})";
1652 my $message = "BBC(Bleadperl Breaks CPAN) Today: String::Multibyte";
1653 my $re = qr/(?:[\x00-\xFF]{4})/;
1654 my $hyp = "\0\0\0-";
1655 my $esc = "\0\0\0\\";
1657 my $str = "$esc$hyp$hyp$esc$esc";
1658 my @a = ($str =~ /\G(?:\Q$esc$esc\E|\Q$esc$hyp\E|$re)/g);
1662 is("@a","$esc$hyp=$hyp=$esc$esc", $message);
1666 # Test for keys in %+ and %-
1667 my $message = 'Test keys in %+ and %-';
1668 no warnings 'uninitialized';
1669 local $_ = "abcdef";
1670 /(?<foo>a)|(?<foo>b)/;
1671 is((join ",", sort keys %+), "foo", $message);
1672 is((join ",", sort keys %-), "foo", $message);
1673 is((join ",", sort values %+), "a", $message);
1674 is((join ",", sort map "@$_", values %-), "a ", $message);
1675 /(?<bar>a)(?<bar>b)(?<quux>.)/;
1676 is((join ",", sort keys %+), "bar,quux", $message);
1677 is((join ",", sort keys %-), "bar,quux", $message);
1678 is((join ",", sort values %+), "a,c", $message); # leftmost
1679 is((join ",", sort map "@$_", values %-), "a b,c", $message);
1680 /(?<un>a)(?<deux>c)?/; # second buffer won't capture
1681 is((join ",", sort keys %+), "un", $message);
1682 is((join ",", sort keys %-), "deux,un", $message);
1683 is((join ",", sort values %+), "a", $message);
1684 is((join ",", sort map "@$_", values %-), ",a", $message);
1688 # length() on captures, the numbered ones end up in Perl_magic_len
1689 local $_ = "aoeu " . uni_to_native("\xe6") . "var ook";
1690 /^ \w+ \s (?<eek>\S+)/x;
1692 is(length $`, 0, q[length $`]);
1693 is(length $', 4, q[length $']);
1694 is(length $&, 9, q[length $&]);
1695 is(length $1, 4, q[length $1]);
1696 is(length $+{eek}, 4, q[length $+{eek} == length $1]);
1702 $ok = exists ($-{x}) ? 1 : 0 if 'bar' =~ /(?<x>foo)|bar/;
1703 is($ok, 1, '$-{x} exists after "bar"=~/(?<x>foo)|bar/');
1704 is(scalar (%+), 0, 'scalar %+ == 0 after "bar"=~/(?<x>foo)|bar/');
1705 is(scalar (%-), 1, 'scalar %- == 1 after "bar"=~/(?<x>foo)|bar/');
1708 $ok = exists ($+{x}) ? 1 : 0 if 'bar' =~ /(?<x>foo)|bar/;
1709 is($ok, 0, '$+{x} not exists after "bar"=~/(?<x>foo)|bar/');
1710 is(scalar (%+), 0, 'scalar %+ == 0 after "bar"=~/(?<x>foo)|bar/');
1711 is(scalar (%-), 1, 'scalar %- == 1 after "bar"=~/(?<x>foo)|bar/');
1714 $ok = exists ($-{x}) ? 1 : 0 if 'foo' =~ /(?<x>foo)|bar/;
1715 is($ok, 1, '$-{x} exists after "foo"=~/(?<x>foo)|bar/');
1716 is(scalar (%+), 1, 'scalar %+ == 1 after "foo"=~/(?<x>foo)|bar/');
1717 is(scalar (%-), 1, 'scalar %- == 1 after "foo"=~/(?<x>foo)|bar/');
1720 $ok = exists ($+{x}) ? 1 : 0 if 'foo'=~/(?<x>foo)|bar/;
1721 is($ok, 1, '$+{x} exists after "foo"=~/(?<x>foo)|bar/');
1726 ($_ = 'abc') =~ /(abc)/g;
1728 is("$1", 'abc', "/g leads to unsafe match vars: $1");
1730 fresh_perl_is(<<'EOP', ">abc<\n", {}, 'mention $&');
1733 ($x='abc')=~/(abc)/g;
1738 fresh_perl_is(<<'EOP', ">abc<\n", {}, 'no mention of $&');
1740 ($x='abc')=~/(abc)/g;
1747 # Message-ID: <20070818091501.7eff4831@r2d2>
1751 $str .= "@x"; # this should ALWAYS be the empty string
1755 is(length $str, 0, "Trie scope error, string should be empty");
1757 my @foo = ('a') x 5;
1761 s/a|/push @bar, 1/e;
1763 is(length $str, 0, "Trie scope error, string should be empty");
1767 # more TRIE/AHOCORASICK problems with mixed utf8 / latin-1 and case folding
1768 for my $ord (160 .. 255) {
1769 my $chr = utf8::unicode_to_native($ord);
1770 my $chr_byte = chr($chr);
1771 my $chr_utf8 = chr($chr); utf8::upgrade($chr_utf8);
1772 my $rx = qr{$chr_byte|X}i;
1773 ok($chr_utf8 =~ $rx, "utf8/latin, codepoint $chr");
1778 our $a = 3; "" =~ /(??{ $a })/;
1780 is($b, $a, "Copy of scalar used for postponed subexpression");
1799 my $match = '<bla><blubb></blubb></bla>' =~ m/^$nested_tags$/;
1800 ok $match, 'nested construct matches';
1801 is("@ctl_n", "bla blubb", '$^N inside of (?{}) works as expected');
1802 is("@plus", "bla blubb", '$+ inside of (?{}) works as expected');
1806 # XXX: This set of tests is essentially broken, POSIX character classes
1807 # should not have differing definitions under Unicode.
1808 # There are property names for that.
1809 skip "Tests assume ASCII", 4 unless $::IS_ASCII;
1811 my @notIsPunct = grep {/[[:punct:]]/ and not /\p{IsPunct}/}
1812 map {chr} 0x20 .. 0x7f;
1813 is(join ('', @notIsPunct), '$+<=>^`|~',
1814 '[:punct:] disagrees with IsPunct on Symbols');
1816 my @isPrint = grep {not /[[:print:]]/ and /\p{IsPrint}/}
1817 map {chr} 0 .. 0x1f, 0x7f .. 0x9f;
1818 is(join ('', @isPrint), "",
1819 'IsPrint agrees with [:print:] on control characters');
1821 my @isPunct = grep {/[[:punct:]]/ != /\p{IsPunct}/}
1822 map {chr} 0x80 .. 0xff;
1823 is(join ('', @isPunct), "\xa1\xa7\xab\xb6\xb7\xbb\xbf", # ¡ « · » ¿
1824 'IsPunct disagrees with [:punct:] outside ASCII');
1826 my @isPunctLatin1 = eval q {
1827 grep {/[[:punct:]]/u != /\p{IsPunct}/} map {chr} 0x80 .. 0xff;
1829 skip "Eval failed ($@)", 1 if $@;
1830 skip "PERL_LEGACY_UNICODE_CHARCLASS_MAPPINGS set to 0", 1
1831 if !$ENV{PERL_TEST_LEGACY_POSIX_CC};
1832 is(join ('', @isPunctLatin1), '',
1833 'IsPunct agrees with [:punct:] with explicit Latin1');
1837 # Tests for [#perl 71942]
1848 # expected values of count_a and count_b,
1853 qr/a+(?{$count_a++})b?(*COMMIT)(*FAIL)/,
1854 qr/a+(?{$count_b++})b?(*COMMIT)z/,
1860 qr/a+(?{$count_a++})b?(*COMMIT)\s*(*FAIL)/,
1861 qr/a+(?{$count_b++})b?(*COMMIT)\s*z/,
1867 qr/a+(?{$count_a++})(?:b|)?(*COMMIT)(*FAIL)/,
1868 qr/a+(?{$count_b++})(?:b|)?(*COMMIT)z/,
1874 qr/a+(?{$count_a++})b{0,6}(*COMMIT)(*FAIL)/,
1875 qr/a+(?{$count_b++})b{0,6}(*COMMIT)z/,
1881 qr/a+(?{$count_a++})(bc){0,6}(*COMMIT)(*FAIL)/,
1882 qr/a+(?{$count_b++})(bc){0,6}(*COMMIT)z/,
1888 qr/a+(?{$count_a++})(bc*){0,6}(*COMMIT)(*FAIL)/,
1889 qr/a+(?{$count_b++})(bc*){0,6}(*COMMIT)z/,
1897 qr/a+(?{$count_a++})b?(*PRUNE)(*FAIL)/,
1898 qr/a+(?{$count_b++})b?(*PRUNE)z/,
1904 qr/a+(?{$count_a++})b?(*PRUNE)\s*(*FAIL)/,
1905 qr/a+(?{$count_b++})b?(*PRUNE)\s*z/,
1911 qr/a+(?{$count_a++})(?:b|)(*PRUNE)(*FAIL)/,
1912 qr/a+(?{$count_b++})(?:b|)(*PRUNE)z/,
1918 qr/a+(?{$count_a++})b{0,6}(*PRUNE)(*FAIL)/,
1919 qr/a+(?{$count_b++})b{0,6}(*PRUNE)z/,
1925 qr/a+(?{$count_a++})(bc){0,6}(*PRUNE)(*FAIL)/,
1926 qr/a+(?{$count_b++})(bc){0,6}(*PRUNE)z/,
1932 qr/a+(?{$count_a++})(bc*){0,6}(*PRUNE)(*FAIL)/,
1933 qr/a+(?{$count_b++})(bc*){0,6}(*PRUNE)z/,
1940 qr/a+(?{$count_a++;})b?(*SKIP)(*FAIL)/,
1941 qr/a+(?{$count_b++;})b?(*SKIP)z/,
1947 qr/a+(?{$count_a++;})b?(*SKIP)\s*(*FAIL)/,
1948 qr/a+(?{$count_b++;})b?(*SKIP)\s*z/,
1954 qr/a+(?{$count_a++;})(?:b|)(*SKIP)(*FAIL)/,
1955 qr/a+(?{$count_b++;})(?:b|)(*SKIP)z/,
1961 qr/a+(?{$count_a++;})b{0,6}(*SKIP)(*FAIL)/,
1962 qr/a+(?{$count_b++;})b{0,6}(*SKIP)z/,
1968 qr/a+(?{$count_a++;})(bc){0,6}(*SKIP)(*FAIL)/,
1969 qr/a+(?{$count_b++;})(bc){0,6}(*SKIP)z/,
1975 qr/a+(?{$count_a++;})(bc*){0,6}(*SKIP)(*FAIL)/,
1976 qr/a+(?{$count_b++;})(bc*){0,6}(*SKIP)z/,
1984 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) (*FAIL) \s* c \1 /x,
1985 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) z \s* c \1 /x,
1991 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) \s* (*FAIL) \s* c \1 /x,
1992 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? b? (*SKIP:T1) \s* z \s* c \1 /x,
1998 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? (?:b|) (*SKIP:T1) (*FAIL) \s* c \1 /x,
1999 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? (?:b|) (*SKIP:T1) z \s* c \1 /x,
2005 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? b{0,6} (*SKIP:T1) (*FAIL) \s* c \1 /x,
2006 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? b{0,6} (*SKIP:T1) z \s* c \1 /x,
2012 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? (bc){0,6} (*SKIP:T1) (*FAIL) \s* c \1 /x,
2013 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? (bc){0,6} (*SKIP:T1) z \s* c \1 /x,
2019 qr/a (?{$count_a++;}) (*MARK:T1) (a*) .*? (bc*){0,6} (*SKIP:T1) (*FAIL) \s* c \1 /x,
2020 qr/a (?{$count_b++;}) (*MARK:T1) (a*) .*? (bc*){0,6} (*SKIP:T1) z \s* c \1 /x,
2028 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2029 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2035 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) \s* (*FAIL) \s* c \1 /x,
2036 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? b? (*MARK:T1) (*SKIP:T1) \s* z \s* c \1 /x,
2042 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? (?:b|) (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2043 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? (?:b|) (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2049 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? b{0,6} (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2050 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? b{0,6} (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2056 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? (bc){0,6} (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2057 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? (bc){0,6} (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2063 qr/a (?{$count_a++;}) (a?) (*MARK:T1) (a*) .*? (bc*){0,6} (*MARK:T1) (*SKIP:T1) (*FAIL) \s* c \1 /x,
2064 qr/a (?{$count_b++;}) (a?) (*MARK:T1) (a*) .*? (bc*){0,6} (*MARK:T1) (*SKIP:T1) z \s* c \1 /x,
2072 qr/(A (.*) (?{ $count_a++ }) C? (*THEN) | A D) (*FAIL)/x,
2073 qr/(A (.*) (?{ $count_b++ }) C? (*THEN) | A D) z/x,
2079 qr/(A (.*) (?{ $count_a++ }) C? (*THEN) | A D) \s* (*FAIL)/x,
2080 qr/(A (.*) (?{ $count_b++ }) C? (*THEN) | A D) \s* z/x,
2086 qr/(A (.*) (?{ $count_a++ }) (?:C|) (*THEN) | A D) (*FAIL)/x,
2087 qr/(A (.*) (?{ $count_b++ }) (?:C|) (*THEN) | A D) z/x,
2093 qr/(A (.*) (?{ $count_a++ }) C{0,6} (*THEN) | A D) (*FAIL)/x,
2094 qr/(A (.*) (?{ $count_b++ }) C{0,6} (*THEN) | A D) z/x,
2100 qr/(A (.*) (?{ $count_a++ }) (CE){0,6} (*THEN) | A D) (*FAIL)/x,
2101 qr/(A (.*) (?{ $count_b++ }) (CE){0,6} (*THEN) | A D) z/x,
2107 qr/(A (.*) (?{ $count_a++ }) (CE*){0,6} (*THEN) | A D) (*FAIL)/x,
2108 qr/(A (.*) (?{ $count_b++ }) (CE*){0,6} (*THEN) | A D) z/x,
2116 my $match_a = ($re->[1] =~ $re->[2]) || 0;
2117 my $match_b = ($re->[1] =~ $re->[3]) || 0;
2119 is($match_a, $re->[0], "match a " . ($re->[0] ? "succeeded" : "failed") . " ($c)");
2120 is($match_b, $re->[0], "match b " . ($re->[0] ? "succeeded" : "failed") . " ($c)");
2121 is($count_a, $re->[4], "count a ($c)");
2122 is($count_b, $re->[4], "count b ($c)");
2126 { # Bleadperl v5.13.8-292-gf56b639 breaks NEZUMI/Unicode-LineBreak-1.011
2127 # \xdf in lookbehind failed to compile as is multi-char fold
2128 my $message = "Lookbehind with \\xdf matchable compiles";
2132 (?<=[^-.]) (?=[-~.,_?\#%=&]) |
2135 is($@, '', $message);
2136 object_ok($r, 'Regexp', $message);
2140 ok 'foo/file.fob' =~ m,^(?=[^\.])[^/]*/(?=[^\.])[^/]*\.fo[^/]$,;
2142 { # This was failing unless an explicit /d was added
2143 my $E0 = uni_to_native("\xE0");
2144 my $p = qr/[_$E0]/i;
2146 like(uni_to_native("\xC0"), qr/$p/, "Verify \"\\xC0\" =~ /[\\xE0_]/i; pattern in utf8");
2149 ok "x" =~ /\A(?>(?:(?:)A|B|C?x))\z/,
2150 "Check TRIE does not overwrite EXACT following NOTHING at start - RT #111842";
2154 my $upper = "\x{390}"; # Fold is 3 chars.
2155 my $multi = CORE::fc($upper);
2159 # Try forcing a node to be split, with a multi-char fold at the
2161 for my $repeat (1 .. 300) {
2162 my $string = $single x $repeat;
2163 my $lhs = $string . $upper;
2164 if ($lhs !~ m/$string$multi/i) {
2169 ok(! $failed, "Matched multi-char fold across EXACTFish node boundaries; if failed, was at count $failed");
2172 for my $repeat (1 .. 300) {
2173 my $string = $single x $repeat;
2174 my $lhs = $string . "\N{LATIN SMALL LIGATURE FFI}";
2175 if ($lhs !~ m/${string}ff\N{LATIN SMALL LETTER I}/i) {
2180 ok(! $failed, "Matched multi-char fold across EXACTFish node boundaries; if failed, was at count $failed");
2183 for my $repeat (1 .. 300) {
2184 my $string = $single x $repeat;
2185 my $lhs = $string . "\N{LATIN SMALL LIGATURE FFL}";
2186 if ($lhs !~ m/${string}ff\N{U+6c}/i) {
2191 ok(! $failed, "Matched multi-char fold across EXACTFish node boundaries; if failed, was at count $failed");
2193 # This tests that under /d matching that an 'ss' split across two
2194 # parts of a node doesn't end up turning into something that matches
2195 # \xDF unless it is in utf8.
2197 $single = 'a'; # Is non-terminal multi-char fold char
2198 for my $repeat (1 .. 300) {
2199 my $string = $single x $repeat;
2200 my $lhs = "$string\N{LATIN SMALL LETTER SHARP S}";
2201 utf8::downgrade($lhs);
2203 if ($lhs =~ m/${string}s/di) {
2208 ok(! $failed, "Matched multi-char fold 'ss' across EXACTF node boundaries; if failed, was at count $failed");
2212 fresh_perl_is('print eval "\"\x{101}\" =~ /[[:lower:]]/", "\n"; print eval "\"\x{100}\" =~ /[[:lower:]]/i", "\n";',
2213 "1\n1", # Both re's should match
2215 "get [:lower:] swash in first eval; test under /i in second");
2219 fresh_perl_is(<<'EOF',
2221 $s =~ /(.*)/ or die;
2223 print $ls eq lc $s ? "good\n" : "bad: [$ls]\n";
2227 "swash triggered by lc() doesn't corrupt \$1"
2233 no warnings 'regexp'; # Silence "has useless greediness modifier"
2237 "PCRE regression test: No 'Quantifier follows nothing in regex' warning");
2242 unlike("\xB5", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2243 like("\xB6", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2244 unlike("\xB7", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2245 like("\xB5", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2246 unlike("\xB6", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2247 like("\xB7", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2249 unlike("_\xB5", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2250 like("_\xB6", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2251 unlike("_\xB7", qr/^_?\p{IsMyRuntimeProperty}\z/, "yadayada");
2252 like("_\xB5", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2253 unlike("_\xB6", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2254 like("_\xB7", qr/^_?\P{IsMyRuntimeProperty}\z/, "yadayada");
2257 # These are defined later, so won't be known at regex compile time above
2258 sub IsMyRuntimeProperty {
2262 sub IsntMyRuntimeProperty {
2269 # define a Unicode propertyIs_q
2272 sprintf '%x', ord 'q'
2274 $regex = qr/\p{Is_q}/;
2276 # If we uncomment the following line, prior to the patch that
2277 # fixed this, everything would work because we would have expanded
2278 # the property by the time the regex in the 'like' below got
2283 like('q', $regex, 'User-defined property matches outside package');
2286 main::like('abcq', qr/abc$regex/, 'Run-time compiled in-package user-defined property matches');
2290 { # From Lingua::Stem::UniNE; no ticket filed but related to #121778
2294 ия # definite articles for nouns:
2300 is($word, 'раб', "Handles UTF8 trie correctly");
2305 $a =~ /(?{})(?=[A-Za-z0-9_])a*?/g;
2306 is (pos $a, 0, "optimizer correctly thinks (?=...) is 0-length");
2309 { # [perl #123417] multi-char \N{...} tripping roundly
2311 my $qr = qr$(\N{foo})$;
2312 "afoot" =~ eval "qr/$qr/";
2313 is "$1" || $@, "foo", 'multichar \N{...} stringified and retoked';
2315 { # empty \N{...} tripping roundly
2316 BEGIN { $^H{charnames} = sub { "" } }
2317 my $qr = qr$(a\N{foo}t)$;
2318 "at" =~ eval "qr/$qr/";
2319 is "$1" || $@, "at", 'empty \N{...} stringified and retoked';
2322 is (scalar split(/\b{sb}/, "Don't think twice. It's all right."),
2323 2, '\b{wb} splits sentences correctly');
2326 # !!! NOTE! Keep the following tests last -- they may crash perl
2328 print "# Tests that follow may crash perl\n";
2331 ok $@ =~ /\QSequence \k... not terminated in regex;\E/,
2332 'Lone \k not allowed';
2336 my $message = "Substitution with lookahead (possible segv)";
2339 is($_, "ns_1ns_1ns_1", $message);
2342 is($_, "ns_1", $message);
2344 s/(?=\d+)|(?<=\d)/!Bang!/g;
2345 is($_, "!Bang!1!Bang!2!Bang!3!Bang!", $message);
2349 # Earlier versions of Perl said this was fatal.
2350 my $message = "U+0FFFF shouldn't crash the regex engine";
2352 my $a = eval "chr(65535)";
2354 my $warning_message;
2355 local $SIG{__WARN__} = sub { $warning_message = $_[0] };
2357 ok(1, $message); # If it didn't crash, it worked.
2360 TODO: { # Was looping
2361 todo_skip('Triggers thread clone SEGV. See #86550')
2362 if $::running_as_thread && $::running_as_thread;
2363 watchdog(10); # Use a bigger value for busy systems
2364 like("\x{00DF}", qr/[\x{1E9E}_]*/i, "\"\\x{00DF}\" =~ /[\\x{1E9E}_]*/i was looping");
2367 { # Bug #90536, caused failed assertion
2368 unlike("s\N{U+DF}", qr/^\x{00DF}/i, "\"s\\N{U+DF}\", qr/^\\x{00DF}/i");
2371 # User-defined Unicode properties to match above-Unicode code points
2372 sub Is_32_Bit_Super { return "110000\tFFFFFFFF\n" }
2373 sub Is_Portable_Super { return '!utf8::Any' } # Matches beyond 32 bits
2375 { # Assertion was failing on on 64-bit platforms; just didn't work on 32.
2376 no warnings qw(non_unicode portable);
2377 no warnings 'deprecated'; # These are above IV_MAX
2380 # We use 'ok' instead of 'like' because the warnings are lexically
2381 # scoped, and want to turn them off, so have to do the match in this
2383 if ($Config{uvsize} < 8) {
2384 ok(chr(0xFFFF_FFFE) =~ /\p{Is_32_Bit_Super}/,
2385 "chr(0xFFFF_FFFE) can match a Unicode property");
2386 ok(chr(0xFFFF_FFFF) =~ /\p{Is_32_Bit_Super}/,
2387 "chr(0xFFFF_FFFF) can match a Unicode property");
2388 my $p = qr/^[\x{FFFF_FFFF}]$/;
2389 ok(chr(0xFFFF_FFFF) =~ $p,
2390 "chr(0xFFFF_FFFF) can match itself in a [class]");
2391 ok(chr(0xFFFF_FFFF) =~ $p, # Tests any caching
2392 "chr(0xFFFF_FFFF) can match itself in a [class] subsequently");
2395 no warnings 'overflow';
2396 ok(chr(0xFFFF_FFFF_FFFF_FFFE) =~ qr/\p{Is_Portable_Super}/,
2397 "chr(0xFFFF_FFFF_FFFF_FFFE) can match a Unicode property");
2398 ok(chr(0xFFFF_FFFF_FFFF_FFFF) =~ qr/^\p{Is_Portable_Super}$/,
2399 "chr(0xFFFF_FFFF_FFFF_FFFF) can match a Unicode property");
2401 my $p = qr/^[\x{FFFF_FFFF_FFFF_FFFF}]$/;
2402 ok(chr(0xFFFF_FFFF_FFFF_FFFF) =~ $p,
2403 "chr(0xFFFF_FFFF_FFFF_FFFF) can match itself in a [class]");
2404 ok(chr(0xFFFF_FFFF_FFFF_FFFF) =~ $p, # Tests any caching
2405 "chr(0xFFFF_FFFF_FFFF_FFFF) can match itself in a [class] subsequently");
2407 # This test is because something was declared as 32 bits, but
2408 # should have been cast to 64; only a problem where
2409 # sizeof(STRLEN) != sizeof(UV)
2410 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");
2414 { # [perl #112530], the code below caused a panic
2415 sub InFoo { "a\tb\n9\ta\n" }
2416 like(chr(0xA), qr/\p{InFoo}/,
2417 "Overlapping ranges in user-defined properties");
2420 { # [perl #125990], the final 2 tests below each caused a panic.
2421 # The \0's are not necessary; it could be a printable character
2422 # instead, but were in the ticket, so using them.
2423 my $sharp_s = chr utf8::unicode_to_native(0xdf);
2424 my $string = ("\0" x 8)
2428 my $folded_string = ("\0" x 8)
2432 utf8::downgrade($string);
2433 utf8::downgrade($folded_string);
2435 like($string, qr/$string/i, "LATIN SMALL SHARP S matches itself under /id");
2436 unlike($folded_string, qr/$string/i, "LATIN SMALL SHARP S doesn't match 'ss' under /di");
2437 no warnings 'deprecated';
2438 like($folded_string, qr/\N{}$string/i, "\\N{} earlier than LATIN SMALL SHARP S transforms /di into /ui, matches 'ss'");
2439 like($folded_string, qr/$string\N{}/i, "\\N{} after LATIN SMALL SHARP S transforms /di into /ui, matches 'ss'");
2442 { # Regexp:Grammars was broken:
2443 # http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2013-06/msg01290.html
2444 fresh_perl_like('use warnings; "abc" =~ qr{(?&foo){0}abc(?<foo>)}',
2445 qr/Quantifier unexpected on zero-length expression/,
2447 'No segfault on qr{(?&foo){0}abc(?<foo>)}');
2451 { # [perl #125826] buffer overflow in TRIE_STORE_REVCHAR
2452 # (during compilation, so use a fresh perl)
2453 $Config{uvsize} == 8
2454 or skip("need large code-points for this test", 1);
2456 # This is above IV_MAX on 32 bit machines, so turn off those warnings
2457 fresh_perl_is('no warnings "deprecated"; /\x{E000000000}|/ and print qq(ok\n)', "ok\n", {},
2458 "buffer overflow in TRIE_STORE_REVCHAR");
2462 fresh_perl_like('use warnings; s
\00(?(?!00000000000000000000000000·000000)\500000000
\00000000000000000000000000000000000000000000000000000·00000000000000000000000000000000
\00',
2463 qr/Switch \(\?\(condition\)\.\.\. not terminated/,
2465 'No segfault [perl #126886]');
2468 # !!! NOTE that tests that aren't at all likely to crash perl should go
2469 # a ways above, above these last ones. There's a comment there that, like
2470 # this comment, contains the word 'NOTE'
2473 } # End of sub run_tests