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[perl5.git] / t / op / pat.t
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8d063cd8 1#!./perl
8d37f932
DD
2#
3# This is a home for regular expression tests that don't fit into
4# the format supported by op/regexp.t. If you want to add a test
5# that does fit that format, add it to op/re_tests, not here.
8d063cd8 6
30944b6d 7print "1..192\n";
8d37f932 8
e4d48cc9
GS
9BEGIN {
10 chdir 't' if -d 't';
93430cb4 11 unshift @INC, "../lib" if -d "../lib";
e4d48cc9 12}
8d37f932 13eval 'use Config'; # Defaults assumed if this fails
8d063cd8 14
9c63abab
GS
15# XXX known to leak scalars
16$ENV{PERL_DESTRUCT_LEVEL} = 0 unless $ENV{PERL_DESTRUCT_LEVEL} > 3;
eec2d3df 17
8d063cd8
LW
18$x = "abc\ndef\n";
19
20if ($x =~ /^abc/) {print "ok 1\n";} else {print "not ok 1\n";}
21if ($x !~ /^def/) {print "ok 2\n";} else {print "not ok 2\n";}
22
23$* = 1;
24if ($x =~ /^def/) {print "ok 3\n";} else {print "not ok 3\n";}
25$* = 0;
26
27$_ = '123';
28if (/^([0-9][0-9]*)/) {print "ok 4\n";} else {print "not ok 4\n";}
29
30if ($x =~ /^xxx/) {print "not ok 5\n";} else {print "ok 5\n";}
31if ($x !~ /^abc/) {print "not ok 6\n";} else {print "ok 6\n";}
32
33if ($x =~ /def/) {print "ok 7\n";} else {print "not ok 7\n";}
34if ($x !~ /def/) {print "not ok 8\n";} else {print "ok 8\n";}
35
36if ($x !~ /.def/) {print "ok 9\n";} else {print "not ok 9\n";}
37if ($x =~ /.def/) {print "not ok 10\n";} else {print "ok 10\n";}
38
39if ($x =~ /\ndef/) {print "ok 11\n";} else {print "not ok 11\n";}
40if ($x !~ /\ndef/) {print "not ok 12\n";} else {print "ok 12\n";}
41
42$_ = 'aaabbbccc';
43if (/(a*b*)(c*)/ && $1 eq 'aaabbb' && $2 eq 'ccc') {
44 print "ok 13\n";
45} else {
46 print "not ok 13\n";
47}
48if (/(a+b+c+)/ && $1 eq 'aaabbbccc') {
49 print "ok 14\n";
50} else {
51 print "not ok 14\n";
52}
53
54if (/a+b?c+/) {print "not ok 15\n";} else {print "ok 15\n";}
55
56$_ = 'aaabccc';
57if (/a+b?c+/) {print "ok 16\n";} else {print "not ok 16\n";}
58if (/a*b+c*/) {print "ok 17\n";} else {print "not ok 17\n";}
59
60$_ = 'aaaccc';
61if (/a*b?c*/) {print "ok 18\n";} else {print "not ok 18\n";}
62if (/a*b+c*/) {print "not ok 19\n";} else {print "ok 19\n";}
63
64$_ = 'abcdef';
65if (/bcd|xyz/) {print "ok 20\n";} else {print "not ok 20\n";}
66if (/xyz|bcd/) {print "ok 21\n";} else {print "not ok 21\n";}
67
68if (m|bc/*d|) {print "ok 22\n";} else {print "not ok 22\n";}
378cc40b
LW
69
70if (/^$_$/) {print "ok 23\n";} else {print "not ok 23\n";}
71
72$* = 1; # test 3 only tested the optimized version--this one is for real
73if ("ab\ncd\n" =~ /^cd/) {print "ok 24\n";} else {print "not ok 24\n";}
74$* = 0;
75
76$XXX{123} = 123;
77$XXX{234} = 234;
78$XXX{345} = 345;
79
80@XXX = ('ok 25','not ok 25', 'ok 26','not ok 26','not ok 27');
c6aa4a32 81while ($_ = shift(@XXX)) {
378cc40b
LW
82 ?(.*)? && (print $1,"\n");
83 /not/ && reset;
84 /not ok 26/ && reset 'X';
85}
86
a0d0e21e 87while (($key,$val) = each(%XXX)) {
378cc40b
LW
88 print "not ok 27\n";
89 exit;
90}
91
92print "ok 27\n";
93
94'cde' =~ /[^ab]*/;
95'xyz' =~ //;
96if ($& eq 'xyz') {print "ok 28\n";} else {print "not ok 28\n";}
97
98$foo = '[^ab]*';
99'cde' =~ /$foo/;
100'xyz' =~ //;
101if ($& eq 'xyz') {print "ok 29\n";} else {print "not ok 29\n";}
102
103$foo = '[^ab]*';
104'cde' =~ /$foo/;
105'xyz' =~ /$null/;
106if ($& eq 'xyz') {print "ok 30\n";} else {print "not ok 30\n";}
a687059c
LW
107
108$_ = 'abcdefghi';
109/def/; # optimized up to cmd
110if ("$`:$&:$'" eq 'abc:def:ghi') {print "ok 31\n";} else {print "not ok 31\n";}
111
112/cde/ + 0; # optimized only to spat
113if ("$`:$&:$'" eq 'ab:cde:fghi') {print "ok 32\n";} else {print "not ok 32\n";}
114
115/[d][e][f]/; # not optimized
116if ("$`:$&:$'" eq 'abc:def:ghi') {print "ok 33\n";} else {print "not ok 33\n";}
117
118$_ = 'now is the {time for all} good men to come to.';
119/ {([^}]*)}/;
120if ($1 eq 'time for all') {print "ok 34\n";} else {print "not ok 34 $1\n";}
121
122$_ = 'xxx {3,4} yyy zzz';
123print /( {3,4})/ ? "ok 35\n" : "not ok 35\n";
124print $1 eq ' ' ? "ok 36\n" : "not ok 36\n";
125print /( {4,})/ ? "not ok 37\n" : "ok 37\n";
126print /( {2,3}.)/ ? "ok 38\n" : "not ok 38\n";
127print $1 eq ' y' ? "ok 39\n" : "not ok 39\n";
128print /(y{2,3}.)/ ? "ok 40\n" : "not ok 40\n";
129print $1 eq 'yyy ' ? "ok 41\n" : "not ok 41\n";
130print /x {3,4}/ ? "not ok 42\n" : "ok 42\n";
131print /^xxx {3,4}/ ? "not ok 43\n" : "ok 43\n";
352d5a3a
LW
132
133$_ = "now is the time for all good men to come to.";
134@words = /(\w+)/g;
135print join(':',@words) eq "now:is:the:time:for:all:good:men:to:come:to"
136 ? "ok 44\n"
137 : "not ok 44\n";
138
139@words = ();
140while (/\w+/g) {
141 push(@words, $&);
142}
143print join(':',@words) eq "now:is:the:time:for:all:good:men:to:come:to"
144 ? "ok 45\n"
145 : "not ok 45\n";
146
147@words = ();
71be2cbc 148pos = 0;
352d5a3a
LW
149while (/to/g) {
150 push(@words, $&);
151}
152print join(':',@words) eq "to:to"
153 ? "ok 46\n"
71be2cbc 154 : "not ok 46 `@words'\n";
352d5a3a 155
71be2cbc 156pos $_ = 0;
352d5a3a
LW
157@words = /to/g;
158print join(':',@words) eq "to:to"
159 ? "ok 47\n"
71be2cbc 160 : "not ok 47 `@words'\n";
352d5a3a
LW
161
162$_ = "abcdefghi";
163
164$pat1 = 'def';
165$pat2 = '^def';
166$pat3 = '.def.';
167$pat4 = 'abc';
168$pat5 = '^abc';
169$pat6 = 'abc$';
170$pat7 = 'ghi';
171$pat8 = '\w*ghi';
172$pat9 = 'ghi$';
173
174$t1=$t2=$t3=$t4=$t5=$t6=$t7=$t8=$t9=0;
175
176for $iter (1..5) {
177 $t1++ if /$pat1/o;
178 $t2++ if /$pat2/o;
179 $t3++ if /$pat3/o;
180 $t4++ if /$pat4/o;
181 $t5++ if /$pat5/o;
182 $t6++ if /$pat6/o;
183 $t7++ if /$pat7/o;
184 $t8++ if /$pat8/o;
185 $t9++ if /$pat9/o;
186}
187
188$x = "$t1$t2$t3$t4$t5$t6$t7$t8$t9";
189print $x eq '505550555' ? "ok 48\n" : "not ok 48 $x\n";
1462b684
LW
190
191$xyz = 'xyz';
192print "abc" =~ /^abc$|$xyz/ ? "ok 49\n" : "not ok 49\n";
193
194# perl 4.009 says "unmatched ()"
195eval '"abc" =~ /a(bc$)|$xyz/; $result = "$&:$1"';
196print $@ eq "" ? "ok 50\n" : "not ok 50\n";
197print $result eq "abc:bc" ? "ok 51\n" : "not ok 51\n";
a0d0e21e
LW
198
199
200$_="abcfooabcbar";
201$x=/abc/g;
202print $` eq "" ? "ok 52\n" : "not ok 52\n" if $x;
203$x=/abc/g;
204print $` eq "abcfoo" ? "ok 53\n" : "not ok 53\n" if $x;
205$x=/abc/g;
206print $x == 0 ? "ok 54\n" : "not ok 54\n";
71be2cbc 207pos = 0;
a0d0e21e
LW
208$x=/ABC/gi;
209print $` eq "" ? "ok 55\n" : "not ok 55\n" if $x;
210$x=/ABC/gi;
211print $` eq "abcfoo" ? "ok 56\n" : "not ok 56\n" if $x;
212$x=/ABC/gi;
213print $x == 0 ? "ok 57\n" : "not ok 57\n";
71be2cbc 214pos = 0;
a0d0e21e
LW
215$x=/abc/g;
216print $' eq "fooabcbar" ? "ok 58\n" : "not ok 58\n" if $x;
217$x=/abc/g;
218print $' eq "bar" ? "ok 59\n" : "not ok 59\n" if $x;
219$_ .= '';
220@x=/abc/g;
221print scalar @x == 2 ? "ok 60\n" : "not ok 60\n";
71be2cbc
PP
222
223$_ = "abdc";
224pos $_ = 2;
c90c0ff4 225/\Gc/gc;
71be2cbc
PP
226print "not " if (pos $_) != 2;
227print "ok 61\n";
c90c0ff4
PP
228/\Gc/g;
229print "not " if defined pos $_;
230print "ok 62\n";
c277df42
IZ
231
232$out = 1;
233'abc' =~ m'a(?{ $out = 2 })b';
234print "not " if $out != 2;
235print "ok 63\n";
236
237$out = 1;
238'abc' =~ m'a(?{ $out = 3 })c';
239print "not " if $out != 1;
240print "ok 64\n";
241
242$_ = 'foobar1 bar2 foobar3 barfoobar5 foobar6';
243@out = /(?<!foo)bar./g;
244print "not " if "@out" ne 'bar2 barf';
245print "ok 65\n";
246
8d37f932
DD
247# Tests which depend on REG_INFTY
248$reg_infty = defined $Config{reg_infty} ? $Config{reg_infty} : 32767;
249$reg_infty_m = $reg_infty - 1; $reg_infty_p = $reg_infty + 1;
250
251# As well as failing if the pattern matches do unexpected things, the
252# next three tests will fail if you should have picked up a lower-than-
253# default value for $reg_infty from Config.pm, but have not.
254
255undef $@;
256print "not " if eval q(('aaa' =~ /(a{1,$reg_infty_m})/)[0] ne 'aaa') || $@;
257print "ok 66\n";
258
259undef $@;
260print "not " if eval q(('a' x $reg_infty_m) !~ /a{$reg_infty_m}/) || $@;
261print "ok 67\n";
262
263undef $@;
264print "not " if eval q(('a' x ($reg_infty_m - 1)) =~ /a{$reg_infty_m}/) || $@;
265print "ok 68\n";
266
267undef $@;
268eval "'aaa' =~ /a{1,$reg_infty}/";
269print "not " if $@ !~ m%^\Q/a{1,$reg_infty}/: Quantifier in {,} bigger than%;
270print "ok 69\n";
271
272eval "'aaa' =~ /a{1,$reg_infty_p}/";
273print "not "
274 if $@ !~ m%^\Q/a{1,$reg_infty_p}/: Quantifier in {,} bigger than%;
275print "ok 70\n";
276undef $@;
277
278# Poke a couple more parse failures
279
280$context = 'x' x 256;
281eval qq("${context}y" =~ /(?<=$context)y/);
282print "not " if $@ !~ m%^\Q/(?<=\Ex+/: lookbehind longer than 255 not%;
283print "ok 71\n";
284
b8c5462f 285# removed test
8d37f932
DD
286print "ok 72\n";
287
c277df42 288# Long Monsters
8d37f932 289$test = 73;
c277df42
IZ
290for $l (125, 140, 250, 270, 300000, 30) { # Ordered to free memory
291 $a = 'a' x $l;
292 print "# length=$l\nnot " unless "ba$a=" =~ /a$a=/;
293 print "ok $test\n";
294 $test++;
295
296 print "not " if "b$a=" =~ /a$a=/;
297 print "ok $test\n";
298 $test++;
299}
300
301# 20000 nodes, each taking 3 words per string, and 1 per branch
302$long_constant_len = join '|', 12120 .. 32645;
303$long_var_len = join '|', 8120 .. 28645;
304%ans = ( 'ax13876y25677lbc' => 1,
305 'ax13876y25677mcb' => 0, # not b.
306 'ax13876y35677nbc' => 0, # Num too big
307 'ax13876y25677y21378obc' => 1,
308 'ax13876y25677y21378zbc' => 0, # Not followed by [k-o]
309 'ax13876y25677y21378y21378kbc' => 1,
310 'ax13876y25677y21378y21378kcb' => 0, # Not b.
311 'ax13876y25677y21378y21378y21378kbc' => 0, # 5 runs
312 );
313
314for ( keys %ans ) {
315 print "# const-len `$_' not => $ans{$_}\nnot "
316 if $ans{$_} xor /a(?=([yx]($long_constant_len)){2,4}[k-o]).*b./o;
317 print "ok $test\n";
318 $test++;
319 print "# var-len `$_' not => $ans{$_}\nnot "
320 if $ans{$_} xor /a(?=([yx]($long_var_len)){2,4}[k-o]).*b./o;
321 print "ok $test\n";
322 $test++;
323}
324
325$_ = " a (bla()) and x(y b((l)u((e))) and b(l(e)e)e";
326$expect = "(bla()) ((l)u((e))) (l(e)e)";
327
328sub matchit {
cc6b7395 329 m/
c277df42
IZ
330 (
331 \(
332 (?{ $c = 1 }) # Initialize
333 (?:
334 (?(?{ $c == 0 }) # PREVIOUS iteration was OK, stop the loop
335 (?!
336 ) # Fail: will unwind one iteration back
337 )
338 (?:
339 [^()]+ # Match a big chunk
340 (?=
341 [()]
342 ) # Do not try to match subchunks
343 |
344 \(
345 (?{ ++$c })
346 |
347 \)
348 (?{ --$c })
349 )
350 )+ # This may not match with different subblocks
351 )
352 (?(?{ $c != 0 })
353 (?!
354 ) # Fail
355 ) # Otherwise the chunk 1 may succeed with $c>0
cc6b7395 356 /xg;
c277df42
IZ
357}
358
0f5d15d6 359@ans = ();
c277df42
IZ
360push @ans, $res while $res = matchit;
361
362print "# ans='@ans'\n# expect='$expect'\nnot " if "@ans" ne "1 1 1";
363print "ok $test\n";
364$test++;
365
366@ans = matchit;
367
368print "# ans='@ans'\n# expect='$expect'\nnot " if "@ans" ne $expect;
369print "ok $test\n";
370$test++;
371
0f5d15d6
IZ
372my $matched;
373$matched = qr/\((?:(?>[^()]+)|(?p{$matched}))*\)/;
374
375@ans = @ans1 = ();
376push(@ans, $res), push(@ans1, $&) while $res = m/$matched/g;
377
378print "# ans='@ans'\n# expect='$expect'\nnot " if "@ans" ne "1 1 1";
379print "ok $test\n";
380$test++;
381
382print "# ans1='@ans1'\n# expect='$expect'\nnot " if "@ans1" ne $expect;
383print "ok $test\n";
384$test++;
385
386@ans = m/$matched/g;
387
388print "# ans='@ans'\n# expect='$expect'\nnot " if "@ans" ne $expect;
389print "ok $test\n";
390$test++;
391
c277df42
IZ
392@ans = ('a/b' =~ m%(.*/)?(.*)%); # Stack may be bad
393print "not " if "@ans" ne 'a/ b';
394print "ok $test\n";
395$test++;
396
cc6b7395 397$code = '{$blah = 45}';
c277df42 398$blah = 12;
2cd61cdb
IZ
399eval { /(?$code)/ };
400print "not " unless $@ and $@ =~ /not allowed at runtime/ and $blah == 12;
e4d48cc9
GS
401print "ok $test\n";
402$test++;
403
2cd61cdb
IZ
404for $code ('{$blah = 45}','=xx') {
405 $blah = 12;
406 $res = eval { "xx" =~ /(?$code)/o };
407 if ($code eq '=xx') {
408 print "#'$@','$res','$blah'\nnot " unless not $@ and $res;
409 } else {
410 print "#'$@','$res','$blah'\nnot " unless $@ and $@ =~ /not allowed at runtime/ and $blah == 12;
411 }
412 print "ok $test\n";
413 $test++;
414}
415
e4d48cc9
GS
416$code = '{$blah = 45}';
417$blah = 12;
418eval "/(?$code)/";
cc6b7395
IZ
419print "not " if $blah != 45;
420print "ok $test\n";
421$test++;
422
423$blah = 12;
424/(?{$blah = 45})/;
c277df42
IZ
425print "not " if $blah != 45;
426print "ok $test\n";
427$test++;
428
74d6a13a
MB
429$x = 'banana';
430$x =~ /.a/g;
431print "not " unless pos($x) == 2;
432print "ok $test\n";
433$test++;
434
435$x =~ /.z/gc;
436print "not " unless pos($x) == 2;
437print "ok $test\n";
438$test++;
439
440sub f {
441 my $p = $_[0];
442 return $p;
443}
444
445$x =~ /.a/g;
446print "not " unless f(pos($x)) == 4;
447print "ok $test\n";
448$test++;
4599a1de 449
ce862d02
IZ
450$x = $^R = 67;
451'foot' =~ /foo(?{$x = 12; 75})[t]/;
452print "not " unless $^R eq '75';
453print "ok $test\n";
454$test++;
455
456$x = $^R = 67;
457'foot' =~ /foo(?{$x = 12; 75})[xy]/;
458print "not " unless $^R eq '67' and $x eq '12';
459print "ok $test\n";
460$test++;
461
462$x = $^R = 67;
463'foot' =~ /foo(?{ $^R + 12 })((?{ $x = 12; $^R + 17 })[xy])?/;
464print "not " unless $^R eq '79' and $x eq '12';
465print "ok $test\n";
466$test++;
467
8782bef2
GB
468print "not " unless qr/\b\v$/i eq '(?i-xsm:\bv$)';
469print "ok $test\n";
470$test++;
471
472print "not " unless qr/\b\v$/s eq '(?s-xim:\bv$)';
473print "ok $test\n";
474$test++;
475
476print "not " unless qr/\b\v$/m eq '(?m-xis:\bv$)';
477print "ok $test\n";
478$test++;
479
480print "not " unless qr/\b\v$/x eq '(?x-ism:\bv$)';
481print "ok $test\n";
482$test++;
483
484print "not " unless qr/\b\v$/xism eq '(?msix:\bv$)';
485print "ok $test\n";
486$test++;
487
488print "not " unless qr/\b\v$/ eq '(?-xism:\bv$)';
97197631
IZ
489print "ok $test\n";
490$test++;
491
7e5428c5
IZ
492$_ = 'xabcx';
493foreach $ans ('', 'c') {
494 /(?<=(?=a)..)((?=c)|.)/g;
495 print "not " unless $1 eq $ans;
496 print "ok $test\n";
497 $test++;
498}
499
500$_ = 'a';
501foreach $ans ('', 'a', '') {
502 /^|a|$/g;
503 print "not " unless $& eq $ans;
504 print "ok $test\n";
505 $test++;
506}
507
09f25ae4
IZ
508sub prefixify {
509 my($v,$a,$b,$res) = @_;
510 $v =~ s/\Q$a\E/$b/;
511 print "not " unless $res eq $v;
512 print "ok $test\n";
513 $test++;
514}
515prefixify('/a/b/lib/arch', "/a/b/lib", 'X/lib', 'X/lib/arch');
516prefixify('/a/b/man/arch', "/a/b/man", 'X/man', 'X/man/arch');
517
518$_ = 'var="foo"';
519/(\")/;
520print "not " unless $1 and /$1/;
521print "ok $test\n";
522$test++;
523
8782bef2 524$a=qr/(?{++$b})/;
2cd61cdb
IZ
525$b = 7;
526/$a$a/;
527print "not " unless $b eq '9';
528print "ok $test\n";
529$test++;
530
531$c="$a";
532/$a$a/;
533print "not " unless $b eq '11';
534print "ok $test\n";
535$test++;
536
537{
538 use re "eval";
539 /$a$c$a/;
540 print "not " unless $b eq '14';
541 print "ok $test\n";
542 $test++;
543
544 no re "eval";
545 $match = eval { /$a$c$a/ };
546 print "not "
547 unless $b eq '14' and $@ =~ /Eval-group not allowed/ and not $match;
548 print "ok $test\n";
549 $test++;
550}
cbce877f
IZ
551
552{
553 package aa;
554 $c = 2;
555 $::c = 3;
556 '' =~ /(?{ $c = 4 })/;
557 print "not " unless $c == 4;
558}
559print "ok $test\n";
560$test++;
561print "not " unless $c == 3;
562print "ok $test\n";
563$test++;
2cd61cdb 564
4599a1de
JH
565sub must_warn_pat {
566 my $warn_pat = shift;
567 return sub { print "not " unless $_[0] =~ /$warn_pat/ }
568}
569
570sub must_warn {
571 my ($warn_pat, $code) = @_;
572 local $^W; local %SIG;
573 eval 'BEGIN { $^W = 1; $SIG{__WARN__} = $warn_pat };' . $code;
574 print "ok $test\n";
575 $test++;
576}
577
578
579sub make_must_warn {
580 my $warn_pat = shift;
581 return sub { must_warn(must_warn_pat($warn_pat)) }
582}
583
584my $for_future = make_must_warn('reserved for future extensions');
585
586&$for_future('q(a:[b]:) =~ /[x[:foo:]]/');
587&$for_future('q(a=[b]=) =~ /[x[=foo=]]/');
588&$for_future('q(a.[b].) =~ /[x[.foo.]]/');
f7e33566
GS
589
590# test if failure of patterns returns empty list
591$_ = 'aaa';
592@_ = /bbb/;
593print "not " if @_;
594print "ok $test\n";
595$test++;
596
597@_ = /bbb/g;
598print "not " if @_;
599print "ok $test\n";
600$test++;
601
602@_ = /(bbb)/;
603print "not " if @_;
604print "ok $test\n";
605$test++;
606
607@_ = /(bbb)/g;
608print "not " if @_;
609print "ok $test\n";
610$test++;
611
6cef1e77
IZ
612/a(?=.$)/;
613print "not " if $#+ != 0 or $#- != 0;
614print "ok $test\n";
615$test++;
616
617print "not " if $+[0] != 2 or $-[0] != 1;
618print "ok $test\n";
619$test++;
620
621print "not "
622 if defined $+[1] or defined $-[1] or defined $+[2] or defined $-[2];
623print "ok $test\n";
624$test++;
625
626/a(a)(a)/;
627print "not " if $#+ != 2 or $#- != 2;
628print "ok $test\n";
629$test++;
630
631print "not " if $+[0] != 3 or $-[0] != 0;
632print "ok $test\n";
633$test++;
634
635print "not " if $+[1] != 2 or $-[1] != 1;
636print "ok $test\n";
637$test++;
638
639print "not " if $+[2] != 3 or $-[2] != 2;
640print "ok $test\n";
641$test++;
642
643print "not "
644 if defined $+[3] or defined $-[3] or defined $+[4] or defined $-[4];
645print "ok $test\n";
646$test++;
647
648/.(a)(b)?(a)/;
649print "not " if $#+ != 3 or $#- != 3;
650print "ok $test\n";
651$test++;
652
653print "not " if $+[0] != 3 or $-[0] != 0;
654print "ok $test\n";
655$test++;
656
657print "not " if $+[1] != 2 or $-[1] != 1;
658print "ok $test\n";
659$test++;
660
661print "not " if $+[3] != 3 or $-[3] != 2;
662print "ok $test\n";
663$test++;
664
665print "not "
666 if defined $+[2] or defined $-[2] or defined $+[4] or defined $-[4];
667print "ok $test\n";
668$test++;
669
670/.(a)/;
671print "not " if $#+ != 1 or $#- != 1;
672print "ok $test\n";
673$test++;
674
675print "not " if $+[0] != 2 or $-[0] != 0;
676print "ok $test\n";
677$test++;
678
679print "not " if $+[1] != 2 or $-[1] != 1;
680print "ok $test\n";
681$test++;
682
683print "not "
684 if defined $+[2] or defined $-[2] or defined $+[3] or defined $-[3];
685print "ok $test\n";
686$test++;
687
8f580fb8
IZ
688/.(a)(ba*)?/;
689print "#$#-..$#+\nnot " if $#+ != 2 or $#- != 1;
690print "ok $test\n";
691$test++;
692
ad94a511
IZ
693$_ = 'aaa';
694pos = 1;
695@a = /\Ga/g;
696print "not " unless "@a" eq "a a";
697print "ok $test\n";
698$test++;
699
22e551b9
IZ
700$str = 'abcde';
701pos $str = 2;
702
703print "not " if $str =~ /^\G/;
704print "ok $test\n";
705$test++;
706
707print "not " if $str =~ /^.\G/;
708print "ok $test\n";
709$test++;
710
711print "not " unless $str =~ /^..\G/;
712print "ok $test\n";
713$test++;
714
715print "not " if $str =~ /^...\G/;
716print "ok $test\n";
717$test++;
718
719print "not " unless $str =~ /.\G./ and $& eq 'bc';
720print "ok $test\n";
721$test++;
722
723print "not " unless $str =~ /\G../ and $& eq 'cd';
724print "ok $test\n";
725$test++;
726
9661b544
IZ
727undef $foo; undef $bar;
728print "#'$str','$foo','$bar'\nnot "
729 unless $str =~ /b(?{$foo = $_; $bar = pos})c/
730 and $foo eq 'abcde' and $bar eq 2;
731print "ok $test\n";
732$test++;
733
734undef $foo; undef $bar;
735pos $str = undef;
736print "#'$str','$foo','$bar'\nnot "
737 unless $str =~ /b(?{$foo = $_; $bar = pos})c/g
738 and $foo eq 'abcde' and $bar eq 2 and pos $str eq 3;
739print "ok $test\n";
740$test++;
741
742$_ = $str;
743
744undef $foo; undef $bar;
745print "#'$str','$foo','$bar'\nnot "
746 unless /b(?{$foo = $_; $bar = pos})c/
747 and $foo eq 'abcde' and $bar eq 2;
748print "ok $test\n";
749$test++;
750
751undef $foo; undef $bar;
752print "#'$str','$foo','$bar'\nnot "
753 unless /b(?{$foo = $_; $bar = pos})c/g
754 and $foo eq 'abcde' and $bar eq 2 and pos eq 3;
755print "ok $test\n";
756$test++;
757
758undef $foo; undef $bar;
759pos = undef;
7601 while /b(?{$foo = $_; $bar = pos})c/g;
761print "#'$str','$foo','$bar'\nnot "
762 unless $foo eq 'abcde' and $bar eq 2 and not defined pos;
763print "ok $test\n";
764$test++;
765
766undef $foo; undef $bar;
767$_ = 'abcde|abcde';
768print "#'$str','$foo','$bar','$_'\nnot "
769 unless s/b(?{$foo = $_; $bar = pos})c/x/g and $foo eq 'abcde|abcde'
770 and $bar eq 8 and $_ eq 'axde|axde';
771print "ok $test\n";
772$test++;
773
5c5e4c24
IZ
774@res = ();
775# List context:
776$_ = 'abcde|abcde';
777@dummy = /([ace]).(?{push @res, $1,$2})([ce])(?{push @res, $1,$2})/g;
778@res = map {defined $_ ? "'$_'" : 'undef'} @res;
779$res = "@res";
780print "#'@res' '$_'\nnot "
781 unless "@res" eq "'a' undef 'a' 'c' 'e' undef 'a' undef 'a' 'c'";
782print "ok $test\n";
783$test++;
784
785@res = ();
786@dummy = /([ace]).(?{push @res, $`,$&,$'})([ce])(?{push @res, $`,$&,$'})/g;
787@res = map {defined $_ ? "'$_'" : 'undef'} @res;
788$res = "@res";
789print "#'@res' '$_'\nnot "
790 unless "@res" eq
791 "'' 'ab' 'cde|abcde' " .
792 "'' 'abc' 'de|abcde' " .
793 "'abcd' 'e|' 'abcde' " .
794 "'abcde|' 'ab' 'cde' " .
795 "'abcde|' 'abc' 'de'" ;
796print "ok $test\n";
797$test++;
798
b7a35066
IZ
799#Some more \G anchor checks
800$foo='aabbccddeeffgg';
801
802pos($foo)=1;
803
804$foo=~/.\G(..)/g;
805print "not " unless($1 eq 'ab');
806print "ok $test\n";
807$test++;
808
809pos($foo) += 1;
810$foo=~/.\G(..)/g;
811print "not " unless($1 eq 'cc');
812print "ok $test\n";
813$test++;
814
815pos($foo) += 1;
816$foo=~/.\G(..)/g;
817print "not " unless($1 eq 'de');
818print "ok $test\n";
819$test++;
820
0ef3e39e
HS
821print "not " unless $foo =~ /\Gef/g;
822print "ok $test\n";
823$test++;
824
b7a35066
IZ
825undef pos $foo;
826
827$foo=~/\G(..)/g;
828print "not " unless($1 eq 'aa');
829print "ok $test\n";
830$test++;
831
832$foo=~/\G(..)/g;
833print "not " unless($1 eq 'bb');
834print "ok $test\n";
835$test++;
836
837pos($foo)=5;
838$foo=~/\G(..)/g;
839print "not " unless($1 eq 'cd');
840print "ok $test\n";
841$test++;
842
e60df1fa
IZ
843$_='123x123';
844@res = /(\d*|x)/g;
845print "not " unless('123||x|123|' eq join '|', @res);
846print "ok $test\n";
847$test++;
848
9d080a66
GS
849# see if matching against temporaries (created via pp_helem()) is safe
850{ foo => "ok $test\n".$^X }->{foo} =~ /^(.*)\n/g;
851print "$1\n";
852$test++;
853
cf93c79d
IZ
854# See if $i work inside (?{}) in the presense of saved substrings and
855# changing $_
856@a = qw(foo bar);
857@b = ();
858s/(\w)(?{push @b, $1})/,$1,/g for @a;
859
860print "# \@b='@b', expect 'f o o b a r'\nnot " unless("@b" eq "f o o b a r");
861print "ok $test\n";
862$test++;
863
864print "not " unless("@a" eq ",f,,o,,o, ,b,,a,,r,");
865print "ok $test\n";
866$test++;
867
2c914db6
IZ
868$brackets = qr{
869 { (?> [^{}]+ | (?p{ $brackets }) )* }
870 }x;
871
872"{{}" =~ $brackets;
873print "ok $test\n"; # Did we survive?
874$test++;
875
876"something { long { and } hairy" =~ $brackets;
877print "ok $test\n"; # Did we survive?
878$test++;
879
880"something { long { and } hairy" =~ m/((?p{ $brackets }))/;
881print "not " unless $1 eq "{ and }";
882print "ok $test\n";
883$test++;
884
30944b6d
IZ
885$_ = "a-a\nxbb";
886pos=1;
887m/^-.*bb/mg and print "not ";
888print "ok $test\n";
889$test++;