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CommitLineData
25aae3a7 1#!./perl -w
d9d8d8de 2
a1a0e61e
TD
3BEGIN {
4 chdir 't' if -d 't';
20822f61 5 @INC = '../lib';
a1a0e61e
TD
6 require Config; import Config;
7}
344462d3 8
e8ebd21b 9require './test.pl';
3e462cdc 10plan( tests => 149 );
d9d8d8de
LW
11
12$x = 'foo';
13$_ = "x";
14s/x/\$x/;
e8ebd21b 15ok( $_ eq '$x', ":$_: eq :\$x:" );
d9d8d8de
LW
16
17$_ = "x";
18s/x/$x/;
e8ebd21b 19ok( $_ eq 'foo', ":$_: eq :foo:" );
d9d8d8de
LW
20
21$_ = "x";
22s/x/\$x $x/;
e8ebd21b 23ok( $_ eq '$x foo', ":$_: eq :\$x foo:" );
d9d8d8de
LW
24
25$b = 'cd';
79072805 26($a = 'abcdef') =~ s<(b${b}e)>'\n$1';
e8ebd21b 27ok( $1 eq 'bcde' && $a eq 'a\n$1f', ":$1: eq :bcde: ; :$a: eq :a\\n\$1f:" );
d9d8d8de
LW
28
29$a = 'abacada';
e8ebd21b 30ok( ($a =~ s/a/x/g) == 4 && $a eq 'xbxcxdx' );
d9d8d8de 31
e8ebd21b 32ok( ($a =~ s/a/y/g) == 0 && $a eq 'xbxcxdx' );
d9d8d8de 33
e8ebd21b 34ok( ($a =~ s/b/y/g) == 1 && $a eq 'xyxcxdx' );
d9d8d8de
LW
35
36$_ = 'ABACADA';
e8ebd21b 37ok( /a/i && s///gi && $_ eq 'BCD' );
d9d8d8de
LW
38
39$_ = '\\' x 4;
e8ebd21b
RGS
40ok( length($_) == 4 );
41$snum = s/\\/\\\\/g;
42ok( $_ eq '\\' x 8 && $snum == 4 );
d9d8d8de
LW
43
44$_ = '\/' x 4;
e8ebd21b
RGS
45ok( length($_) == 8 );
46$snum = s/\//\/\//g;
47ok( $_ eq '\\//' x 4 && $snum == 4 );
48ok( length($_) == 12 );
d9d8d8de
LW
49
50$_ = 'aaaXXXXbbb';
51s/^a//;
e8ebd21b 52ok( $_ eq 'aaXXXXbbb' );
d9d8d8de
LW
53
54$_ = 'aaaXXXXbbb';
55s/a//;
e8ebd21b 56ok( $_ eq 'aaXXXXbbb' );
d9d8d8de
LW
57
58$_ = 'aaaXXXXbbb';
59s/^a/b/;
e8ebd21b 60ok( $_ eq 'baaXXXXbbb' );
d9d8d8de
LW
61
62$_ = 'aaaXXXXbbb';
63s/a/b/;
e8ebd21b 64ok( $_ eq 'baaXXXXbbb' );
d9d8d8de
LW
65
66$_ = 'aaaXXXXbbb';
67s/aa//;
e8ebd21b 68ok( $_ eq 'aXXXXbbb' );
d9d8d8de
LW
69
70$_ = 'aaaXXXXbbb';
71s/aa/b/;
e8ebd21b 72ok( $_ eq 'baXXXXbbb' );
d9d8d8de
LW
73
74$_ = 'aaaXXXXbbb';
75s/b$//;
e8ebd21b 76ok( $_ eq 'aaaXXXXbb' );
d9d8d8de
LW
77
78$_ = 'aaaXXXXbbb';
79s/b//;
e8ebd21b 80ok( $_ eq 'aaaXXXXbb' );
d9d8d8de
LW
81
82$_ = 'aaaXXXXbbb';
83s/bb//;
e8ebd21b 84ok( $_ eq 'aaaXXXXb' );
d9d8d8de
LW
85
86$_ = 'aaaXXXXbbb';
87s/aX/y/;
e8ebd21b 88ok( $_ eq 'aayXXXbbb' );
d9d8d8de
LW
89
90$_ = 'aaaXXXXbbb';
91s/Xb/z/;
e8ebd21b 92ok( $_ eq 'aaaXXXzbb' );
d9d8d8de
LW
93
94$_ = 'aaaXXXXbbb';
95s/aaX.*Xbb//;
e8ebd21b 96ok( $_ eq 'ab' );
d9d8d8de
LW
97
98$_ = 'aaaXXXXbbb';
99s/bb/x/;
e8ebd21b 100ok( $_ eq 'aaaXXXXxb' );
d9d8d8de
LW
101
102# now for some unoptimized versions of the same.
103
104$_ = 'aaaXXXXbbb';
105$x ne $x || s/^a//;
e8ebd21b 106ok( $_ eq 'aaXXXXbbb' );
d9d8d8de
LW
107
108$_ = 'aaaXXXXbbb';
109$x ne $x || s/a//;
e8ebd21b 110ok( $_ eq 'aaXXXXbbb' );
d9d8d8de
LW
111
112$_ = 'aaaXXXXbbb';
113$x ne $x || s/^a/b/;
e8ebd21b 114ok( $_ eq 'baaXXXXbbb' );
d9d8d8de
LW
115
116$_ = 'aaaXXXXbbb';
117$x ne $x || s/a/b/;
e8ebd21b 118ok( $_ eq 'baaXXXXbbb' );
d9d8d8de
LW
119
120$_ = 'aaaXXXXbbb';
121$x ne $x || s/aa//;
e8ebd21b 122ok( $_ eq 'aXXXXbbb' );
d9d8d8de
LW
123
124$_ = 'aaaXXXXbbb';
125$x ne $x || s/aa/b/;
e8ebd21b 126ok( $_ eq 'baXXXXbbb' );
d9d8d8de
LW
127
128$_ = 'aaaXXXXbbb';
129$x ne $x || s/b$//;
e8ebd21b 130ok( $_ eq 'aaaXXXXbb' );
d9d8d8de
LW
131
132$_ = 'aaaXXXXbbb';
133$x ne $x || s/b//;
e8ebd21b 134ok( $_ eq 'aaaXXXXbb' );
d9d8d8de
LW
135
136$_ = 'aaaXXXXbbb';
137$x ne $x || s/bb//;
e8ebd21b 138ok( $_ eq 'aaaXXXXb' );
d9d8d8de
LW
139
140$_ = 'aaaXXXXbbb';
141$x ne $x || s/aX/y/;
e8ebd21b 142ok( $_ eq 'aayXXXbbb' );
d9d8d8de
LW
143
144$_ = 'aaaXXXXbbb';
145$x ne $x || s/Xb/z/;
e8ebd21b 146ok( $_ eq 'aaaXXXzbb' );
d9d8d8de
LW
147
148$_ = 'aaaXXXXbbb';
149$x ne $x || s/aaX.*Xbb//;
e8ebd21b 150ok( $_ eq 'ab' );
d9d8d8de
LW
151
152$_ = 'aaaXXXXbbb';
153$x ne $x || s/bb/x/;
e8ebd21b 154ok( $_ eq 'aaaXXXXxb' );
d9d8d8de
LW
155
156$_ = 'abc123xyz';
c277df42 157s/(\d+)/$1*2/e; # yields 'abc246xyz'
e8ebd21b 158ok( $_ eq 'abc246xyz' );
c277df42 159s/(\d+)/sprintf("%5d",$1)/e; # yields 'abc 246xyz'
e8ebd21b 160ok( $_ eq 'abc 246xyz' );
c277df42 161s/(\w)/$1 x 2/eg; # yields 'aabbcc 224466xxyyzz'
e8ebd21b 162ok( $_ eq 'aabbcc 224466xxyyzz' );
d9d8d8de
LW
163
164$_ = "aaaaa";
e8ebd21b
RGS
165ok( y/a/b/ == 5 );
166ok( y/a/b/ == 0 );
167ok( y/b// == 5 );
168ok( y/b/c/s == 5 );
169ok( y/c// == 1 );
170ok( y/c//d == 1 );
171ok( $_ eq "" );
d9d8d8de
LW
172
173$_ = "Now is the %#*! time for all good men...";
e8ebd21b
RGS
174ok( ($x=(y/a-zA-Z //cd)) == 7 );
175ok( y/ / /s == 8 );
d9d8d8de 176
79072805
LW
177$_ = 'abcdefghijklmnopqrstuvwxyz0123456789';
178tr/a-z/A-Z/;
179
e8ebd21b 180ok( $_ eq 'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789' );
79072805
LW
181
182# same as tr/A-Z/a-z/;
e8ebd21b 183if (defined $Config{ebcdic} && $Config{ebcdic} eq 'define') { # EBCDIC.
6e68dac8 184 no utf8;
9d116dd7
JH
185 y[\301-\351][\201-\251];
186} else { # Ye Olde ASCII. Or something like it.
187 y[\101-\132][\141-\172];
188}
79072805 189
e8ebd21b 190ok( $_ eq 'abcdefghijklmnopqrstuvwxyz0123456789' );
79072805 191
e8ebd21b
RGS
192SKIP: {
193 skip("not ASCII",1) unless (ord("+") == ord(",") - 1
194 && ord(",") == ord("-") - 1
195 && ord("a") == ord("b") - 1
196 && ord("b") == ord("c") - 1);
197 $_ = '+,-';
198 tr/+--/a-c/;
199 ok( $_ eq 'abc' );
9d116dd7 200}
79072805
LW
201
202$_ = '+,-';
203tr/+\--/a\/c/;
e8ebd21b 204ok( $_ eq 'a,/' );
79072805
LW
205
206$_ = '+,-';
207tr/-+,/ab\-/;
e8ebd21b 208ok( $_ eq 'b-a' );
843b4603
TB
209
210
211# test recursive substitutions
212# code based on the recursive expansion of makefile variables
213
214my %MK = (
215 AAAAA => '$(B)', B=>'$(C)', C => 'D', # long->short
216 E => '$(F)', F=>'p $(G) q', G => 'HHHHH', # short->long
217 DIR => '$(UNDEFINEDNAME)/xxx',
218);
219sub var {
220 my($var,$level) = @_;
221 return "\$($var)" unless exists $MK{$var};
222 return exp_vars($MK{$var}, $level+1); # can recurse
223}
224sub exp_vars {
225 my($str,$level) = @_;
226 $str =~ s/\$\((\w+)\)/var($1, $level+1)/ge; # can recurse
227 #warn "exp_vars $level = '$str'\n";
228 $str;
229}
230
e8ebd21b
RGS
231ok( exp_vars('$(AAAAA)',0) eq 'D' );
232ok( exp_vars('$(E)',0) eq 'p HHHHH q' );
233ok( exp_vars('$(DIR)',0) eq '$(UNDEFINEDNAME)/xxx' );
234ok( exp_vars('foo $(DIR)/yyy bar',0) eq 'foo $(UNDEFINEDNAME)/xxx/yyy bar' );
3e3baf6d
TB
235
236$_ = "abcd";
c277df42 237s/(..)/$x = $1, m#.#/eg;
e8ebd21b 238ok( $x eq "cd", 'a match nested in the RHS of a substitution' );
fb73857a 239
c277df42
IZ
240# Subst and lookbehind
241
242$_="ccccc";
e8ebd21b
RGS
243$snum = s/(?<!x)c/x/g;
244ok( $_ eq "xxxxx" && $snum == 5 );
c277df42
IZ
245
246$_="ccccc";
e8ebd21b
RGS
247$snum = s/(?<!x)(c)/x/g;
248ok( $_ eq "xxxxx" && $snum == 5 );
c277df42
IZ
249
250$_="foobbarfoobbar";
e8ebd21b
RGS
251$snum = s/(?<!r)foobbar/foobar/g;
252ok( $_ eq "foobarfoobbar" && $snum == 1 );
c277df42
IZ
253
254$_="foobbarfoobbar";
e8ebd21b
RGS
255$snum = s/(?<!ar)(foobbar)/foobar/g;
256ok( $_ eq "foobarfoobbar" && $snum == 1 );
c277df42
IZ
257
258$_="foobbarfoobbar";
e8ebd21b
RGS
259$snum = s/(?<!ar)foobbar/foobar/g;
260ok( $_ eq "foobarfoobbar" && $snum == 1 );
c277df42 261
fb73857a
PP
262eval 's{foo} # this is a comment, not a delimiter
263 {bar};';
e8ebd21b 264ok( ! @?, 'parsing of split subst with comment' );
f3ea7b5e 265
ed02a3bf
DN
266$snum = eval '$_="exactly"; s sxsys;m 3(yactl)3;$1';
267is( $snum, 'yactl', 'alpha delimiters are allowed' );
268
f3ea7b5e 269$_="baacbaa";
e8ebd21b
RGS
270$snum = tr/a/b/s;
271ok( $_ eq "bbcbb" && $snum == 4,
272 'check if squashing works at the end of string' );
f3ea7b5e 273
2216f30a 274$_ = "ab";
e8ebd21b 275ok( s/a/b/ == 1 );
ce862d02
IZ
276
277$_ = <<'EOL';
278 $url = new URI::URL "http://www/"; die if $url eq "xXx";
279EOL
280$^R = 'junk';
281
282$foo = ' $@%#lowercase $@%# lowercase UPPERCASE$@%#UPPERCASE' .
283 ' $@%#lowercase$@%#lowercase$@%# lowercase lowercase $@%#lowercase' .
284 ' lowercase $@%#MiXeD$@%# ';
285
e8ebd21b 286$snum =
ce862d02
IZ
287s{ \d+ \b [,.;]? (?{ 'digits' })
288 |
289 [a-z]+ \b [,.;]? (?{ 'lowercase' })
290 |
291 [A-Z]+ \b [,.;]? (?{ 'UPPERCASE' })
292 |
293 [A-Z] [a-z]+ \b [,.;]? (?{ 'Capitalized' })
294 |
295 [A-Za-z]+ \b [,.;]? (?{ 'MiXeD' })
296 |
297 [A-Za-z0-9]+ \b [,.;]? (?{ 'alphanumeric' })
298 |
299 \s+ (?{ ' ' })
300 |
301 [^A-Za-z0-9\s]+ (?{ '$@%#' })
302}{$^R}xg;
e8ebd21b 303ok( $_ eq $foo );
8e5e9ebe
RGS
304ok( $snum == 31 );
305
306$_ = 'a' x 6;
307$snum = s/a(?{})//g;
308ok( $_ eq '' && $snum == 6 );
ce862d02 309
2beec16e 310$_ = 'x' x 20;
e8ebd21b 311$snum = s/(\d*|x)/<$1>/g;
2beec16e 312$foo = '<>' . ('<x><>' x 20) ;
e8ebd21b 313ok( $_ eq $foo && $snum == 41 );
ad94a511
IZ
314
315$t = 'aaaaaaaaa';
316
317$_ = $t;
318pos = 6;
e8ebd21b
RGS
319$snum = s/\Ga/xx/g;
320ok( $_ eq 'aaaaaaxxxxxx' && $snum == 3 );
ad94a511
IZ
321
322$_ = $t;
323pos = 6;
e8ebd21b
RGS
324$snum = s/\Ga/x/g;
325ok( $_ eq 'aaaaaaxxx' && $snum == 3 );
ad94a511
IZ
326
327$_ = $t;
328pos = 6;
329s/\Ga/xx/;
e8ebd21b 330ok( $_ eq 'aaaaaaxxaa' );
ad94a511
IZ
331
332$_ = $t;
333pos = 6;
334s/\Ga/x/;
e8ebd21b 335ok( $_ eq 'aaaaaaxaa' );
ad94a511
IZ
336
337$_ = $t;
e8ebd21b
RGS
338$snum = s/\Ga/xx/g;
339ok( $_ eq 'xxxxxxxxxxxxxxxxxx' && $snum == 9 );
ad94a511
IZ
340
341$_ = $t;
e8ebd21b
RGS
342$snum = s/\Ga/x/g;
343ok( $_ eq 'xxxxxxxxx' && $snum == 9 );
ad94a511
IZ
344
345$_ = $t;
346s/\Ga/xx/;
e8ebd21b 347ok( $_ eq 'xxaaaaaaaa' );
ad94a511
IZ
348
349$_ = $t;
350s/\Ga/x/;
e8ebd21b 351ok( $_ eq 'xaaaaaaaa' );
ad94a511 352
f5c9036e 353$_ = 'aaaa';
e8ebd21b
RGS
354$snum = s/\ba/./g;
355ok( $_ eq '.aaa' && $snum == 1 );
ad94a511 356
e9fa98b2 357eval q% s/a/"b"}/e %;
e8ebd21b 358ok( $@ =~ /Bad evalled substitution/ );
e9fa98b2 359eval q% ($_ = "x") =~ s/(.)/"$1 "/e %;
e8ebd21b 360ok( $_ eq "x " and !length $@ );
43a16006
HS
361$x = $x = 'interp';
362eval q% ($_ = "x") =~ s/x(($x)*)/"$1"/e %;
e8ebd21b 363ok( $_ eq '' and !length $@ );
e9fa98b2 364
653099ff 365$_ = "C:/";
e8ebd21b 366ok( !s/^([a-z]:)/\u$1/ );
e9fa98b2 367
12d33761 368$_ = "Charles Bronson";
e8ebd21b
RGS
369$snum = s/\B\w//g;
370ok( $_ eq "C B" && $snum == 12 );
5b71a6a7
A
371
372{
373 use utf8;
374 my $s = "H\303\266he";
375 my $l = my $r = $s;
376 $l =~ s/[^\w]//g;
377 $r =~ s/[^\w\.]//g;
aefe6dfc 378 is($l, $r, "use utf8 \\w");
5b71a6a7 379}
89afcb60
A
380
381my $pv1 = my $pv2 = "Andreas J. K\303\266nig";
382$pv1 =~ s/A/\x{100}/;
383substr($pv2,0,1) = "\x{100}";
384is($pv1, $pv2);
aefe6dfc 385
8e9639e9
JH
386SKIP: {
387 skip("EBCDIC", 3) if ord("A") == 193;
388
389 {
390 # Gregor Chrupala <gregor.chrupala@star-group.net>
391 use utf8;
392 $a = 'Espa&ntilde;a';
393 $a =~ s/&ntilde;/ñ/;
394 like($a, qr/ñ/, "use utf8 RHS");
395 }
396
397 {
398 use utf8;
399 $a = 'España España';
400 $a =~ s/ñ/&ntilde;/;
401 like($a, qr/ñ/, "use utf8 LHS");
402 }
403
404 {
405 use utf8;
406 $a = 'España';
407 $a =~ s/ñ/ñ/;
408 like($a, qr/ñ/, "use utf8 LHS and RHS");
409 }
aefe6dfc
JH
410}
411
8514a05a
JH
412{
413 # SADAHIRO Tomoyuki <bqw10602@nifty.com>
414
415 $a = "\x{100}\x{101}";
416 $a =~ s/\x{101}/\xFF/;
417 like($a, qr/\xFF/);
4a176938 418 is(length($a), 2, "SADAHIRO utf8 s///");
8514a05a
JH
419
420 $a = "\x{100}\x{101}";
421 $a =~ s/\x{101}/"\xFF"/e;
422 like($a, qr/\xFF/);
423 is(length($a), 2);
424
425 $a = "\x{100}\x{101}";
426 $a =~ s/\x{101}/\xFF\xFF\xFF/;
427 like($a, qr/\xFF\xFF\xFF/);
428 is(length($a), 4);
429
430 $a = "\x{100}\x{101}";
431 $a =~ s/\x{101}/"\xFF\xFF\xFF"/e;
432 like($a, qr/\xFF\xFF\xFF/);
433 is(length($a), 4);
434
435 $a = "\xFF\x{101}";
436 $a =~ s/\xFF/\x{100}/;
437 like($a, qr/\x{100}/);
438 is(length($a), 2);
439
440 $a = "\xFF\x{101}";
441 $a =~ s/\xFF/"\x{100}"/e;
442 like($a, qr/\x{100}/);
443 is(length($a), 2);
444
445 $a = "\xFF";
446 $a =~ s/\xFF/\x{100}/;
447 like($a, qr/\x{100}/);
448 is(length($a), 1);
449
450 $a = "\xFF";
451 $a =~ s/\xFF/"\x{100}"/e;
452 like($a, qr/\x{100}/);
453 is(length($a), 1);
454}
d6d0e86e
HS
455
456{
457 # subst with mixed utf8/non-utf8 type
458 my($ua, $ub, $uc, $ud) = ("\x{101}", "\x{102}", "\x{103}", "\x{104}");
459 my($na, $nb) = ("\x{ff}", "\x{fe}");
460 my $a = "$ua--$ub";
461 my $b;
462 ($b = $a) =~ s/--/$na/;
463 is($b, "$ua$na$ub", "s///: replace non-utf8 into utf8");
464 ($b = $a) =~ s/--/--$na--/;
465 is($b, "$ua--$na--$ub", "s///: replace long non-utf8 into utf8");
466 ($b = $a) =~ s/--/$uc/;
467 is($b, "$ua$uc$ub", "s///: replace utf8 into utf8");
468 ($b = $a) =~ s/--/--$uc--/;
469 is($b, "$ua--$uc--$ub", "s///: replace long utf8 into utf8");
470 $a = "$na--$nb";
471 ($b = $a) =~ s/--/$ua/;
472 is($b, "$na$ua$nb", "s///: replace utf8 into non-utf8");
473 ($b = $a) =~ s/--/--$ua--/;
474 is($b, "$na--$ua--$nb", "s///: replace long utf8 into non-utf8");
475
476 # now with utf8 pattern
477 $a = "$ua--$ub";
478 ($b = $a) =~ s/-($ud)?-/$na/;
479 is($b, "$ua$na$ub", "s///: replace non-utf8 into utf8 (utf8 pattern)");
480 ($b = $a) =~ s/-($ud)?-/--$na--/;
481 is($b, "$ua--$na--$ub", "s///: replace long non-utf8 into utf8 (utf8 pattern)");
482 ($b = $a) =~ s/-($ud)?-/$uc/;
483 is($b, "$ua$uc$ub", "s///: replace utf8 into utf8 (utf8 pattern)");
484 ($b = $a) =~ s/-($ud)?-/--$uc--/;
485 is($b, "$ua--$uc--$ub", "s///: replace long utf8 into utf8 (utf8 pattern)");
486 $a = "$na--$nb";
487 ($b = $a) =~ s/-($ud)?-/$ua/;
488 is($b, "$na$ua$nb", "s///: replace utf8 into non-utf8 (utf8 pattern)");
489 ($b = $a) =~ s/-($ud)?-/--$ua--/;
490 is($b, "$na--$ua--$nb", "s///: replace long utf8 into non-utf8 (utf8 pattern)");
491 ($b = $a) =~ s/-($ud)?-/$na/;
492 is($b, "$na$na$nb", "s///: replace non-utf8 into non-utf8 (utf8 pattern)");
493 ($b = $a) =~ s/-($ud)?-/--$na--/;
494 is($b, "$na--$na--$nb", "s///: replace long non-utf8 into non-utf8 (utf8 pattern)");
495}
496
6c8d78fb
HS
497$_ = 'aaaa';
498$r = 'x';
499$s = s/a(?{})/$r/g;
f14c76ed 500is("<$_> <$s>", "<xxxx> <4>", "[perl #7806]");
6c8d78fb
HS
501
502$_ = 'aaaa';
503$s = s/a(?{})//g;
f14c76ed 504is("<$_> <$s>", "<> <4>", "[perl #7806]");
6c8d78fb 505
f14c76ed
RGS
506# [perl #19048] Coredump in silly replacement
507{
508 local $^W = 0;
509 $_="abcdef\n";
510 s!.!!eg;
511 is($_, "\n", "[perl #19048]");
512}
513
4addbd3b
HS
514# [perl #17757] interaction between saw_ampersand and study
515{
516 my $f = eval q{ $& };
517 $f = "xx";
518 study $f;
519 $f =~ s/x/y/g;
520 is($f, "yy", "[perl #17757]");
521}
22e13caa
AE
522
523# [perl #20684] returned a zero count
524$_ = "1111";
525is(s/(??{1})/2/eg, 4, '#20684 s/// with (??{..}) inside');
526
83b43d92
AE
527# [perl #20682] @- not visible in replacement
528$_ = "123";
529/(2)/; # seed @- with something else
530s/(1)(2)(3)/$#- (@-)/;
531is($_, "3 (0 0 1 2)", '#20682 @- not visible in replacement');
532
76ec6486
AE
533# [perl #20682] $^N not visible in replacement
534$_ = "abc";
535/(a)/; s/(b)|(c)/-$^N/g;
536is($_,'a-b-c','#20682 $^N not visible in replacement');
7357df17
JH
537
538# [perl #22351] perl bug with 'e' substitution modifier
539my $name = "chris";
540{
541 no warnings 'uninitialized';
542 $name =~ s/hr//e;
543}
544is($name, "cis", q[#22351 bug with 'e' substitution modifier]);
01b35787
DM
545
546
547# [perl #34171] $1 didn't honour 'use bytes' in s//e
548{
549 my $s="\x{100}";
550 my $x;
551 {
552 use bytes;
553 $s=~ s/(..)/$x=$1/e
554 }
555 is(length($x), 2, '[perl #34171]');
556}
557
558
1749ea0d
ST
559{ # [perl #27940] perlbug: [\x00-\x1f] works, [\c@-\c_] does not
560 my $c;
561
562 ($c = "\x20\c@\x30\cA\x40\cZ\x50\c_\x60") =~ s/[\c@-\c_]//g;
563 is($c, "\x20\x30\x40\x50\x60", "s/[\\c\@-\\c_]//g");
564
565 ($c = "\x20\x00\x30\x01\x40\x1A\x50\x1F\x60") =~ s/[\x00-\x1f]//g;
566 is($c, "\x20\x30\x40\x50\x60", "s/[\\x00-\\x1f]//g");
567}
3be69782 568{
f0852a51
YO
569 $_ = "xy";
570 no warnings 'uninitialized';
571 /(((((((((x)))))))))(z)/; # clear $10
572 s/(((((((((x)))))))))(y)/${10}/;
573 is($_,"y","RT#6006: \$_ eq '$_'");
3be69782
RGS
574 $_ = "xr";
575 s/(((((((((x)))))))))(r)/fooba${10}/;
576 is($_,"foobar","RT#6006: \$_ eq '$_'");
f0852a51 577}
336b1602
YO
578{
579 my $want=("\n" x 11).("B\n" x 11)."B";
580 $_="B";
581 our $i;
582 for $i(1..11){
583 s/^.*$/$&/gm;
584 $_="\n$_\n$&";
585 }
586 is($want,$_,"RT#17542");
587}
1749ea0d 588
ce474962
NC
589{
590 my @tests = ('ABC', "\xA3\xA4\xA5", "\x{410}\x{411}\x{412}");
591 foreach (@tests) {
592 my $id = ord $_;
593 s/./pos/ge;
594 is($_, "012", "RT#52104: $id");
595 }
596}
831a7dd7
MM
597
598fresh_perl_is( '$_=q(foo);s/(.)\G//g;print' => 'foo', '[perl #69056] positive GPOS regex segfault' );
2c296965 599fresh_perl_is( '$_="abcef"; s/bc|(.)\G(.)/$1 ? "[$1-$2]" : "XX"/ge; print' => 'aXX[c-e][e-f]f', 'positive GPOS regex substitution failure' );
831a7dd7 600
455d9033
FC
601# [perl #~~~~~] $var =~ s/$qr//e calling get-magic on $_ as well as $var
602{
603 local *_;
604 my $scratch;
605 sub qrBug::TIESCALAR { bless[pop], 'qrBug' }
606 sub qrBug::FETCH { $scratch .= "[fetching $_[0][0]]"; 'prew' }
607 sub qrBug::STORE{}
608 tie my $kror, qrBug => '$kror';
609 tie $_, qrBug => '$_';
610 my $qr = qr/(?:)/;
611 $kror =~ s/$qr/""/e;
612 is(
613 $scratch, '[fetching $kror]',
614 'bug: $var =~ s/$qr//e calling get-magic on $_ as well as $var',
615 );
616}
3e462cdc
KW
617
618{ # Bug #41530; replacing non-utf8 with a utf8 causes problems
619 my $string = "a\x{a0}a";
620 my $sub_string = $string;
621 ok(! utf8::is_utf8($sub_string), "Verify that string isn't initially utf8");
622 $sub_string =~ s/a/\x{100}/g;
623 ok(utf8::is_utf8($sub_string),
624 'Verify replace of non-utf8 with utf8 upgrades to utf8');
625 is($sub_string, "\x{100}\x{A0}\x{100}",
626 'Verify #41530 fixed: replace of non-utf8 with utf8');
627
628 my $non_sub_string = $string;
629 ok(! utf8::is_utf8($non_sub_string),
630 "Verify that string isn't initially utf8");
631 $non_sub_string =~ s/b/\x{100}/g;
632 ok(! utf8::is_utf8($non_sub_string),
633 "Verify that failed substitute doesn't change string's utf8ness");
634 is($non_sub_string, $string,
635 "Verify that failed substitute doesn't change string");
636}