--- /dev/null
+#!./perl
+#
+# This is a home for regular expression tests that don't fit into
+# the format supported by re/regexp.t. If you want to add a test
+# that does fit that format, add it to re/re_tests, not here.
+
+use strict;
+use warnings;
+use 5.010;
+
+
+sub run_tests;
+
+$| = 1;
+
+my $EXPECTED_TESTS = 4066; # Update this when adding/deleting tests.
+
+BEGIN {
+ chdir 't' if -d 't';
+ @INC = '../lib';
+}
+our $TODO;
+our $Message = "Noname test";
+our $Error;
+our $DiePattern;
+our $WarnPattern;
+our $BugId;
+our $PatchId;
+our $running_as_thread;
+
+my $ordA = ord ('A'); # This defines ASCII/UTF-8 vs EBCDIC/UTF-EBCDIC
+# This defined the platform.
+my $IS_ASCII = $ordA == 65;
+my $IS_EBCDIC = $ordA == 193;
+
+use vars '%Config';
+eval 'use Config'; # Defaults assumed if this fails
+
+my $test = 0;
+
+print "1..$EXPECTED_TESTS\n";
+
+run_tests unless caller ();
+
+END {
+}
+
+sub pretty {
+ my ($mess) = @_;
+ $mess =~ s/\n/\\n/g;
+ $mess =~ s/\r/\\r/g;
+ $mess =~ s/\t/\\t/g;
+ $mess =~ s/([\00-\37\177])/sprintf '\%03o', ord $1/eg;
+ $mess =~ s/#/\\#/g;
+ $mess;
+}
+
+sub safe_globals {
+ defined($_) and s/#/\\#/g for $BugId, $PatchId, $TODO;
+}
+
+sub _ok {
+ my ($ok, $mess, $error) = @_;
+ safe_globals();
+ $mess = pretty ($mess // $Message);
+ $mess .= "; Bug $BugId" if defined $BugId;
+ $mess .= "; Patch $PatchId" if defined $PatchId;
+ $mess .= " # TODO $TODO" if defined $TODO;
+
+ my $line_nr = (caller(1)) [2];
+
+ printf "%sok %d - %s\n",
+ ($ok ? "" : "not "),
+ ++ $test,
+ "$mess\tLine $line_nr";
+
+ unless ($ok) {
+ print "# Failed test at line $line_nr\n" unless defined $TODO;
+ if ($error //= $Error) {
+ no warnings 'utf8';
+ chomp $error;
+ $error = join "\n#", map {pretty $_} split /\n\h*#/ => $error;
+ $error = "# $error" unless $error =~ /^\h*#/;
+ print $error, "\n";
+ }
+ }
+
+ return $ok;
+}
+
+# Force scalar context on the pattern match
+sub ok ($;$$) {_ok $_ [0], $_ [1], $_ [2]}
+sub nok ($;$$) {_ok !$_ [0], "Failed: " . ($_ [1] // $Message), $_ [2]}
+
+
+sub skip {
+ my $why = shift;
+ safe_globals();
+ $why =~ s/\n.*//s;
+ $why .= "; Bug $BugId" if defined $BugId;
+ # seems like the new harness code doesnt like todo and skip to be mixed.
+ # which seems like a bug in the harness to me. -- dmq
+ #$why .= " # TODO $TODO" if defined $TODO;
+
+ my $n = shift // 1;
+ my $line_nr = (caller(0)) [2];
+ for (1 .. $n) {
+ ++ $test;
+ #print "not " if defined $TODO;
+ print "ok $test # skip $why\tLine $line_nr\n";
+ }
+ no warnings "exiting";
+ last SKIP;
+}
+
+sub iseq ($$;$) {
+ my ($got, $expect, $name) = @_;
+
+ $_ = defined ($_) ? "'$_'" : "undef" for $got, $expect;
+
+ my $ok = $got eq $expect;
+ my $error = "# expected: $expect\n" .
+ "# result: $got";
+
+ _ok $ok, $name, $error;
+}
+
+sub isneq ($$;$) {
+ my ($got, $expect, $name) = @_;
+ my $todo = $TODO ? " # TODO $TODO" : '';
+
+ $_ = defined ($_) ? "'$_'" : "undef" for $got, $expect;
+
+ my $ok = $got ne $expect;
+ my $error = "# results are equal ($got)";
+
+ _ok $ok, $name, $error;
+}
+
+
+sub eval_ok ($;$) {
+ my ($code, $name) = @_;
+ local $@;
+ if (ref $code) {
+ _ok eval {&$code} && !$@, $name;
+ }
+ else {
+ _ok eval ($code) && !$@, $name;
+ }
+}
+
+sub must_die {
+ my ($code, $pattern, $name) = @_;
+ $pattern //= $DiePattern;
+ undef $@;
+ ref $code ? &$code : eval $code;
+ my $r = $@ && $@ =~ /$pattern/;
+ _ok $r, $name // $Message // "\$\@ =~ /$pattern/";
+}
+
+sub must_warn {
+ my ($code, $pattern, $name) = @_;
+ $pattern //= $WarnPattern;
+ my $w;
+ local $SIG {__WARN__} = sub {$w .= join "" => @_};
+ use warnings 'all';
+ ref $code ? &$code : eval $code;
+ my $r = $w && $w =~ /$pattern/;
+ $w //= "UNDEF";
+ _ok $r, $name // $Message // "Got warning /$pattern/",
+ "# expected: /$pattern/\n" .
+ "# result: $w";
+}
+
+sub may_not_warn {
+ my ($code, $name) = @_;
+ my $w;
+ local $SIG {__WARN__} = sub {$w .= join "" => @_};
+ use warnings 'all';
+ ref $code ? &$code : eval $code;
+ _ok !$w, $name // ($Message ? "$Message (did not warn)"
+ : "Did not warn"),
+ "Got warning '$w'";
+}
+
+
+#
+# Tests start here.
+#
+sub run_tests {
+
+ {
+
+ my $x = "abc\ndef\n";
+
+ ok $x =~ /^abc/, qq ["$x" =~ /^abc/];
+ ok $x !~ /^def/, qq ["$x" !~ /^def/];
+
+ # used to be a test for $*
+ ok $x =~ /^def/m, qq ["$x" =~ /^def/m];
+
+ nok $x =~ /^xxx/, qq ["$x" =~ /^xxx/];
+ nok $x !~ /^abc/, qq ["$x" !~ /^abc/];
+
+ ok $x =~ /def/, qq ["$x" =~ /def/];
+ nok $x !~ /def/, qq ["$x" !~ /def/];
+
+ ok $x !~ /.def/, qq ["$x" !~ /.def/];
+ nok $x =~ /.def/, qq ["$x" =~ /.def/];
+
+ ok $x =~ /\ndef/, qq ["$x" =~ /\ndef/];
+ nok $x !~ /\ndef/, qq ["$x" !~ /\ndef/];
+ }
+
+ {
+ $_ = '123';
+ ok /^([0-9][0-9]*)/, qq [\$_ = '$_'; /^([0-9][0-9]*)/];
+ }
+
+ {
+ $_ = 'aaabbbccc';
+ ok /(a*b*)(c*)/ && $1 eq 'aaabbb' && $2 eq 'ccc',
+ qq [\$_ = '$_'; /(a*b*)(c*)/];
+ ok /(a+b+c+)/ && $1 eq 'aaabbbccc', qq [\$_ = '$_'; /(a+b+c+)/];
+ nok /a+b?c+/, qq [\$_ = '$_'; /a+b?c+/];
+
+ $_ = 'aaabccc';
+ ok /a+b?c+/, qq [\$_ = '$_'; /a+b?c+/];
+ ok /a*b?c*/, qq [\$_ = '$_'; /a*b?c*/];
+
+ $_ = 'aaaccc';
+ ok /a*b?c*/, qq [\$_ = '$_'; /a*b?c*/];
+ nok /a*b+c*/, qq [\$_ = '$_'; /a*b+c*/];
+
+ $_ = 'abcdef';
+ ok /bcd|xyz/, qq [\$_ = '$_'; /bcd|xyz/];
+ ok /xyz|bcd/, qq [\$_ = '$_'; /xyz|bcd/];
+ ok m|bc/*d|, qq [\$_ = '$_'; m|bc/*d|];
+ ok /^$_$/, qq [\$_ = '$_'; /^\$_\$/];
+ }
+
+ {
+ # used to be a test for $*
+ ok "ab\ncd\n" =~ /^cd/m, qq ["ab\ncd\n" =~ /^cd/m];
+ }
+
+ {
+ our %XXX = map {($_ => $_)} 123, 234, 345;
+
+ our @XXX = ('ok 1','not ok 1', 'ok 2','not ok 2','not ok 3');
+ while ($_ = shift(@XXX)) {
+ my $f = index ($_, 'not') >= 0 ? \&nok : \&ok;
+ my $r = ?(.*)?;
+ &$f ($r, "?(.*)?");
+ /not/ && reset;
+ if (/not ok 2/) {
+ if ($^O eq 'VMS') {
+ $_ = shift(@XXX);
+ }
+ else {
+ reset 'X';
+ }
+ }
+ }
+
+ SKIP: {
+ if ($^O eq 'VMS') {
+ skip "Reset 'X'", 1;
+ }
+ ok !keys %XXX, "%XXX is empty";
+ }
+
+ }
+
+ {
+ local $Message = "Test empty pattern";
+ my $xyz = 'xyz';
+ my $cde = 'cde';
+
+ $cde =~ /[^ab]*/;
+ $xyz =~ //;
+ iseq $&, $xyz;
+
+ my $foo = '[^ab]*';
+ $cde =~ /$foo/;
+ $xyz =~ //;
+ iseq $&, $xyz;
+
+ $cde =~ /$foo/;
+ my $null;
+ no warnings 'uninitialized';
+ $xyz =~ /$null/;
+ iseq $&, $xyz;
+
+ $null = "";
+ $xyz =~ /$null/;
+ iseq $&, $xyz;
+ }
+
+ {
+ local $Message = q !Check $`, $&, $'!;
+ $_ = 'abcdefghi';
+ /def/; # optimized up to cmd
+ iseq "$`:$&:$'", 'abc:def:ghi';
+
+ no warnings 'void';
+ /cde/ + 0; # optimized only to spat
+ iseq "$`:$&:$'", 'ab:cde:fghi';
+
+ /[d][e][f]/; # not optimized
+ iseq "$`:$&:$'", 'abc:def:ghi';
+ }
+
+ {
+ $_ = 'now is the {time for all} good men to come to.';
+ / {([^}]*)}/;
+ iseq $1, 'time for all', "Match braces";
+ }
+
+ {
+ local $Message = "{N,M} quantifier";
+ $_ = 'xxx {3,4} yyy zzz';
+ ok /( {3,4})/;
+ iseq $1, ' ';
+ ok !/( {4,})/;
+ ok /( {2,3}.)/;
+ iseq $1, ' y';
+ ok /(y{2,3}.)/;
+ iseq $1, 'yyy ';
+ ok !/x {3,4}/;
+ ok !/^xxx {3,4}/;
+ }
+
+ {
+ local $Message = "Test /g";
+ local $" = ":";
+ $_ = "now is the time for all good men to come to.";
+ my @words = /(\w+)/g;
+ my $exp = "now:is:the:time:for:all:good:men:to:come:to";
+
+ iseq "@words", $exp;
+
+ @words = ();
+ while (/\w+/g) {
+ push (@words, $&);
+ }
+ iseq "@words", $exp;
+
+ @words = ();
+ pos = 0;
+ while (/to/g) {
+ push(@words, $&);
+ }
+ iseq "@words", "to:to";
+
+ pos $_ = 0;
+ @words = /to/g;
+ iseq "@words", "to:to";
+ }
+
+ {
+ $_ = "abcdefghi";
+
+ my $pat1 = 'def';
+ my $pat2 = '^def';
+ my $pat3 = '.def.';
+ my $pat4 = 'abc';
+ my $pat5 = '^abc';
+ my $pat6 = 'abc$';
+ my $pat7 = 'ghi';
+ my $pat8 = '\w*ghi';
+ my $pat9 = 'ghi$';
+
+ my $t1 = my $t2 = my $t3 = my $t4 = my $t5 =
+ my $t6 = my $t7 = my $t8 = my $t9 = 0;
+
+ for my $iter (1 .. 5) {
+ $t1++ if /$pat1/o;
+ $t2++ if /$pat2/o;
+ $t3++ if /$pat3/o;
+ $t4++ if /$pat4/o;
+ $t5++ if /$pat5/o;
+ $t6++ if /$pat6/o;
+ $t7++ if /$pat7/o;
+ $t8++ if /$pat8/o;
+ $t9++ if /$pat9/o;
+ }
+ my $x = "$t1$t2$t3$t4$t5$t6$t7$t8$t9";
+ iseq $x, '505550555', "Test /o";
+ }
+
+
+ SKIP: {
+ my $xyz = 'xyz';
+ ok "abc" =~ /^abc$|$xyz/, "| after \$";
+
+ # perl 4.009 says "unmatched ()"
+ local $Message = '$ inside ()';
+
+ my $result;
+ eval '"abc" =~ /a(bc$)|$xyz/; $result = "$&:$1"';
+ iseq $@, "" or skip "eval failed", 1;
+ iseq $result, "abc:bc";
+ }
+
+
+ {
+ local $Message = "Scalar /g";
+ $_ = "abcfooabcbar";
+
+ ok /abc/g && $` eq "";
+ ok /abc/g && $` eq "abcfoo";
+ ok !/abc/g;
+
+ local $Message = "Scalar /gi";
+ pos = 0;
+ ok /ABC/gi && $` eq "";
+ ok /ABC/gi && $` eq "abcfoo";
+ ok !/ABC/gi;
+
+ local $Message = "Scalar /g";
+ pos = 0;
+ ok /abc/g && $' eq "fooabcbar";
+ ok /abc/g && $' eq "bar";
+
+ $_ .= '';
+ my @x = /abc/g;
+ iseq @x, 2, "/g reset after assignment";
+ }
+
+ {
+ local $Message = '/g, \G and pos';
+ $_ = "abdc";
+ pos $_ = 2;
+ /\Gc/gc;
+ iseq pos $_, 2;
+ /\Gc/g;
+ ok !defined pos $_;
+ }
+
+ {
+ local $Message = '(?{ })';
+ our $out = 1;
+ 'abc' =~ m'a(?{ $out = 2 })b';
+ iseq $out, 2;
+
+ $out = 1;
+ 'abc' =~ m'a(?{ $out = 3 })c';
+ iseq $out, 1;
+ }
+
+
+ {
+ $_ = 'foobar1 bar2 foobar3 barfoobar5 foobar6';
+ my @out = /(?<!foo)bar./g;
+ iseq "@out", 'bar2 barf', "Negative lookbehind";
+ }
+
+ {
+ local $Message = "REG_INFTY tests";
+ # Tests which depend on REG_INFTY
+ $::reg_infty = $Config {reg_infty} // 32767;
+ $::reg_infty_m = $::reg_infty - 1;
+ $::reg_infty_p = $::reg_infty + 1;
+ $::reg_infty_m = $::reg_infty_m; # Surpress warning.
+
+ # As well as failing if the pattern matches do unexpected things, the
+ # next three tests will fail if you should have picked up a lower-than-
+ # default value for $reg_infty from Config.pm, but have not.
+
+ eval_ok q (('aaa' =~ /(a{1,$::reg_infty_m})/)[0] eq 'aaa');
+ eval_ok q (('a' x $::reg_infty_m) =~ /a{$::reg_infty_m}/);
+ eval_ok q (('a' x ($::reg_infty_m - 1)) !~ /a{$::reg_infty_m}/);
+ eval "'aaa' =~ /a{1,$::reg_infty}/";
+ ok $@ =~ /^\QQuantifier in {,} bigger than/;
+ eval "'aaa' =~ /a{1,$::reg_infty_p}/";
+ ok $@ =~ /^\QQuantifier in {,} bigger than/;
+ }
+
+ {
+ # Poke a couple more parse failures
+ my $context = 'x' x 256;
+ eval qq("${context}y" =~ /(?<=$context)y/);
+ ok $@ =~ /^\QLookbehind longer than 255 not/, "Lookbehind limit";
+ }
+
+ {
+ # Long Monsters
+ local $Message = "Long monster";
+ for my $l (125, 140, 250, 270, 300000, 30) { # Ordered to free memory
+ my $a = 'a' x $l;
+ local $Error = "length = $l";
+ ok "ba$a=" =~ /a$a=/;
+ nok "b$a=" =~ /a$a=/;
+ ok "b$a=" =~ /ba+=/;
+
+ ok "ba$a=" =~ /b(?:a|b)+=/;
+ }
+ }
+
+
+ {
+ # 20000 nodes, each taking 3 words per string, and 1 per branch
+ my $long_constant_len = join '|', 12120 .. 32645;
+ my $long_var_len = join '|', 8120 .. 28645;
+ my %ans = ( 'ax13876y25677lbc' => 1,
+ 'ax13876y25677mcb' => 0, # not b.
+ 'ax13876y35677nbc' => 0, # Num too big
+ 'ax13876y25677y21378obc' => 1,
+ 'ax13876y25677y21378zbc' => 0, # Not followed by [k-o]
+ 'ax13876y25677y21378y21378kbc' => 1,
+ 'ax13876y25677y21378y21378kcb' => 0, # Not b.
+ 'ax13876y25677y21378y21378y21378kbc' => 0, # 5 runs
+ );
+
+ local $Message = "20000 nodes";
+ for (keys %ans) {
+ local $Error = "const-len '$_'";
+ ok !($ans{$_} xor /a(?=([yx]($long_constant_len)){2,4}[k-o]).*b./o);
+
+ local $Error = "var-len '$_'";
+ ok !($ans{$_} xor /a(?=([yx]($long_var_len)){2,4}[k-o]).*b./o);
+ }
+ }
+
+ {
+ local $Message = "Complicated backtracking";
+ $_ = " a (bla()) and x(y b((l)u((e))) and b(l(e)e)e";
+ my $expect = "(bla()) ((l)u((e))) (l(e)e)";
+
+ use vars '$c';
+ sub matchit {
+ m/
+ (
+ \(
+ (?{ $c = 1 }) # Initialize
+ (?:
+ (?(?{ $c == 0 }) # PREVIOUS iteration was OK, stop the loop
+ (?!
+ ) # Fail: will unwind one iteration back
+ )
+ (?:
+ [^()]+ # Match a big chunk
+ (?=
+ [()]
+ ) # Do not try to match subchunks
+ |
+ \(
+ (?{ ++$c })
+ |
+ \)
+ (?{ --$c })
+ )
+ )+ # This may not match with different subblocks
+ )
+ (?(?{ $c != 0 })
+ (?!
+ ) # Fail
+ ) # Otherwise the chunk 1 may succeed with $c>0
+ /xg;
+ }
+
+ my @ans = ();
+ my $res;
+ push @ans, $res while $res = matchit;
+ iseq "@ans", "1 1 1";
+
+ @ans = matchit;
+ iseq "@ans", $expect;
+
+ local $Message = "Recursion with (??{ })";
+ our $matched;
+ $matched = qr/\((?:(?>[^()]+)|(??{$matched}))*\)/;
+
+ @ans = my @ans1 = ();
+ push (@ans, $res), push (@ans1, $&) while $res = m/$matched/g;
+
+ iseq "@ans", "1 1 1";
+ iseq "@ans1", $expect;
+
+ @ans = m/$matched/g;
+ iseq "@ans", $expect;
+
+ }
+
+ {
+ ok "abc" =~ /^(??{"a"})b/, '"abc" =~ /^(??{"a"})b/';
+ }
+
+ {
+ my @ans = ('a/b' =~ m%(.*/)?(.*)%); # Stack may be bad
+ iseq "@ans", 'a/ b', "Stack may be bad";
+ }
+
+ {
+ local $Message = "Eval-group not allowed at runtime";
+ my $code = '{$blah = 45}';
+ our $blah = 12;
+ eval { /(?$code)/ };
+ ok $@ && $@ =~ /not allowed at runtime/ && $blah == 12;
+
+ for $code ('{$blah = 45}','=xx') {
+ $blah = 12;
+ my $res = eval { "xx" =~ /(?$code)/o };
+ no warnings 'uninitialized';
+ local $Error = "'$@', '$res', '$blah'";
+ if ($code eq '=xx') {
+ ok !$@ && $res;
+ }
+ else {
+ ok $@ && $@ =~ /not allowed at runtime/ && $blah == 12;
+ }
+ }
+
+ $code = '{$blah = 45}';
+ $blah = 12;
+ eval "/(?$code)/";
+ iseq $blah, 45;
+
+ $blah = 12;
+ /(?{$blah = 45})/;
+ iseq $blah, 45;
+ }
+
+ {
+ local $Message = "Pos checks";
+ my $x = 'banana';
+ $x =~ /.a/g;
+ iseq pos ($x), 2;
+
+ $x =~ /.z/gc;
+ iseq pos ($x), 2;
+
+ sub f {
+ my $p = $_[0];
+ return $p;
+ }
+
+ $x =~ /.a/g;
+ iseq f (pos ($x)), 4;
+ }
+
+ {
+ local $Message = 'Checking $^R';
+ our $x = $^R = 67;
+ 'foot' =~ /foo(?{$x = 12; 75})[t]/;
+ iseq $^R, 75;
+
+ $x = $^R = 67;
+ 'foot' =~ /foo(?{$x = 12; 75})[xy]/;
+ ok $^R eq '67' && $x eq '12';
+
+ $x = $^R = 67;
+ 'foot' =~ /foo(?{ $^R + 12 })((?{ $x = 12; $^R + 17 })[xy])?/;
+ ok $^R eq '79' && $x eq '12';
+ }
+
+ {
+ iseq qr/\b\v$/i, '(?i-xsm:\b\v$)', 'qr/\b\v$/i';
+ iseq qr/\b\v$/s, '(?s-xim:\b\v$)', 'qr/\b\v$/s';
+ iseq qr/\b\v$/m, '(?m-xis:\b\v$)', 'qr/\b\v$/m';
+ iseq qr/\b\v$/x, '(?x-ism:\b\v$)', 'qr/\b\v$/x';
+ iseq qr/\b\v$/xism, '(?msix:\b\v$)', 'qr/\b\v$/xism';
+ iseq qr/\b\v$/, '(?-xism:\b\v$)', 'qr/\b\v$/';
+ }
+
+
+ {
+ local $Message = "Look around";
+ $_ = 'xabcx';
+ SKIP:
+ foreach my $ans ('', 'c') {
+ ok /(?<=(?=a)..)((?=c)|.)/g or skip "Match failed", 1;
+ iseq $1, $ans;
+ }
+ }
+
+ {
+ local $Message = "Empty clause";
+ $_ = 'a';
+ foreach my $ans ('', 'a', '') {
+ ok /^|a|$/g or skip "Match failed", 1;
+ iseq $&, $ans;
+ }
+ }
+
+ {
+ local $Message = "Prefixify";
+ sub prefixify {
+ SKIP: {
+ my ($v, $a, $b, $res) = @_;
+ ok $v =~ s/\Q$a\E/$b/ or skip "Match failed", 1;
+ iseq $v, $res;
+ }
+ }
+
+ prefixify ('/a/b/lib/arch', "/a/b/lib", 'X/lib', 'X/lib/arch');
+ prefixify ('/a/b/man/arch', "/a/b/man", 'X/man', 'X/man/arch');
+ }
+
+ {
+ $_ = 'var="foo"';
+ /(\")/;
+ ok $1 && /$1/, "Capture a quote";
+ }
+
+ {
+ local $Message = "Call code from qr //";
+ $a = qr/(?{++$b})/;
+ $b = 7;
+ ok /$a$a/ && $b eq '9';
+
+ $c="$a";
+ ok /$a$a/ && $b eq '11';
+
+ undef $@;
+ eval {/$c/};
+ ok $@ && $@ =~ /not allowed at runtime/;
+
+ use re "eval";
+ /$a$c$a/;
+ iseq $b, '14';
+
+ our $lex_a = 43;
+ our $lex_b = 17;
+ our $lex_c = 27;
+ my $lex_res = ($lex_b =~ qr/$lex_b(?{ $lex_c = $lex_a++ })/);
+
+ iseq $lex_res, 1;
+ iseq $lex_a, 44;
+ iseq $lex_c, 43;
+
+ no re "eval";
+ undef $@;
+ my $match = eval { /$a$c$a/ };
+ ok $@ && $@ =~ /Eval-group not allowed/ && !$match;
+ iseq $b, '14';
+
+ $lex_a = 2;
+ $lex_a = 43;
+ $lex_b = 17;
+ $lex_c = 27;
+ $lex_res = ($lex_b =~ qr/17(?{ $lex_c = $lex_a++ })/);
+
+ iseq $lex_res, 1;
+ iseq $lex_a, 44;
+ iseq $lex_c, 43;
+
+ }
+
+
+ {
+ no warnings 'closure';
+ local $Message = '(?{ $var } refers to package vars';
+ package aa;
+ our $c = 2;
+ $::c = 3;
+ '' =~ /(?{ $c = 4 })/;
+ main::iseq $c, 4;
+ main::iseq $::c, 3;
+ }
+
+
+ {
+ must_die 'q(a:[b]:) =~ /[x[:foo:]]/',
+ 'POSIX class \[:[^:]+:\] unknown in regex',
+ 'POSIX class [: :] must have valid name';
+
+ for my $d (qw [= .]) {
+ must_die "/[[${d}foo${d}]]/",
+ "\QPOSIX syntax [$d $d] is reserved for future extensions",
+ "POSIX syntax [[$d $d]] is an error";
+ }
+ }
+
+
+ {
+ # test if failure of patterns returns empty list
+ local $Message = "Failed pattern returns empty list";
+ $_ = 'aaa';
+ @_ = /bbb/;
+ iseq "@_", "";
+
+ @_ = /bbb/g;
+ iseq "@_", "";
+
+ @_ = /(bbb)/;
+ iseq "@_", "";
+
+ @_ = /(bbb)/g;
+ iseq "@_", "";
+ }
+
+
+ {
+ local $Message = '@- and @+ tests';
+
+ /a(?=.$)/;
+ iseq $#+, 0;
+ iseq $#-, 0;
+ iseq $+ [0], 2;
+ iseq $- [0], 1;
+ ok !defined $+ [1] && !defined $- [1] &&
+ !defined $+ [2] && !defined $- [2];
+
+ /a(a)(a)/;
+ iseq $#+, 2;
+ iseq $#-, 2;
+ iseq $+ [0], 3;
+ iseq $- [0], 0;
+ iseq $+ [1], 2;
+ iseq $- [1], 1;
+ iseq $+ [2], 3;
+ iseq $- [2], 2;
+ ok !defined $+ [3] && !defined $- [3] &&
+ !defined $+ [4] && !defined $- [4];
+
+
+ /.(a)(b)?(a)/;
+ iseq $#+, 3;
+ iseq $#-, 3;
+ iseq $+ [1], 2;
+ iseq $- [1], 1;
+ iseq $+ [3], 3;
+ iseq $- [3], 2;
+ ok !defined $+ [2] && !defined $- [2] &&
+ !defined $+ [4] && !defined $- [4];
+
+
+ /.(a)/;
+ iseq $#+, 1;
+ iseq $#-, 1;
+ iseq $+ [0], 2;
+ iseq $- [0], 0;
+ iseq $+ [1], 2;
+ iseq $- [1], 1;
+ ok !defined $+ [2] && !defined $- [2] &&
+ !defined $+ [3] && !defined $- [3];
+
+ /.(a)(ba*)?/;
+ iseq $#+, 2;
+ iseq $#-, 1;
+ }
+
+
+ {
+ local $DiePattern = '^Modification of a read-only value attempted';
+ local $Message = 'Elements of @- and @+ are read-only';
+ must_die '$+[0] = 13';
+ must_die '$-[0] = 13';
+ must_die '@+ = (7, 6, 5)';
+ must_die '@- = qw (foo bar)';
+ }
+
+
+ {
+ local $Message = '\G testing';
+ $_ = 'aaa';
+ pos = 1;
+ my @a = /\Ga/g;
+ iseq "@a", "a a";
+
+ my $str = 'abcde';
+ pos $str = 2;
+ ok $str !~ /^\G/;
+ ok $str !~ /^.\G/;
+ ok $str =~ /^..\G/;
+ ok $str !~ /^...\G/;
+ ok $str =~ /\G../ && $& eq 'cd';
+
+ local $TODO = $running_as_thread;
+ ok $str =~ /.\G./ && $& eq 'bc';
+ }
+
+
+ {
+ local $Message = 'pos inside (?{ })';
+ my $str = 'abcde';
+ our ($foo, $bar);
+ ok $str =~ /b(?{$foo = $_; $bar = pos})c/;
+ iseq $foo, $str;
+ iseq $bar, 2;
+ ok !defined pos ($str);
+
+ undef $foo;
+ undef $bar;
+ pos $str = undef;
+ ok $str =~ /b(?{$foo = $_; $bar = pos})c/g;
+ iseq $foo, $str;
+ iseq $bar, 2;
+ iseq pos ($str), 3;
+
+ $_ = $str;
+ undef $foo;
+ undef $bar;
+ ok /b(?{$foo = $_; $bar = pos})c/;
+ iseq $foo, $str;
+ iseq $bar, 2;
+
+ undef $foo;
+ undef $bar;
+ ok /b(?{$foo = $_; $bar = pos})c/g;
+ iseq $foo, $str;
+ iseq $bar, 2;
+ iseq pos, 3;
+
+ undef $foo;
+ undef $bar;
+ pos = undef;
+ 1 while /b(?{$foo = $_; $bar = pos})c/g;
+ iseq $foo, $str;
+ iseq $bar, 2;
+ ok !defined pos;
+
+ undef $foo;
+ undef $bar;
+ $_ = 'abcde|abcde';
+ ok s/b(?{$foo = $_; $bar = pos})c/x/g;
+ iseq $foo, 'abcde|abcde';
+ iseq $bar, 8;
+ iseq $_, 'axde|axde';
+
+ # List context:
+ $_ = 'abcde|abcde';
+ our @res;
+ () = /([ace]).(?{push @res, $1,$2})([ce])(?{push @res, $1,$2})/g;
+ @res = map {defined $_ ? "'$_'" : 'undef'} @res;
+ iseq "@res", "'a' undef 'a' 'c' 'e' undef 'a' undef 'a' 'c'";
+
+ @res = ();
+ () = /([ace]).(?{push @res, $`,$&,$'})([ce])(?{push @res, $`,$&,$'})/g;
+ @res = map {defined $_ ? "'$_'" : 'undef'} @res;
+ iseq "@res", "'' 'ab' 'cde|abcde' " .
+ "'' 'abc' 'de|abcde' " .
+ "'abcd' 'e|' 'abcde' " .
+ "'abcde|' 'ab' 'cde' " .
+ "'abcde|' 'abc' 'de'" ;
+ }
+
+
+ {
+ local $Message = '\G anchor checks';
+ my $foo = 'aabbccddeeffgg';
+ pos ($foo) = 1;
+ {
+ local $TODO = $running_as_thread;
+ no warnings 'uninitialized';
+ ok $foo =~ /.\G(..)/g;
+ iseq $1, 'ab';
+
+ pos ($foo) += 1;
+ ok $foo =~ /.\G(..)/g;
+ iseq $1, 'cc';
+
+ pos ($foo) += 1;
+ ok $foo =~ /.\G(..)/g;
+ iseq $1, 'de';
+
+ ok $foo =~ /\Gef/g;
+ }
+
+ undef pos $foo;
+ ok $foo =~ /\G(..)/g;
+ iseq $1, 'aa';
+
+ ok $foo =~ /\G(..)/g;
+ iseq $1, 'bb';
+
+ pos ($foo) = 5;
+ ok $foo =~ /\G(..)/g;
+ iseq $1, 'cd';
+ }
+
+
+ {
+ $_ = '123x123';
+ my @res = /(\d*|x)/g;
+ local $" = '|';
+ iseq "@res", "123||x|123|", "0 match in alternation";
+ }
+
+
+ {
+ local $Message = "Match against temporaries (created via pp_helem())" .
+ " is safe";
+ ok {foo => "bar\n" . $^X} -> {foo} =~ /^(.*)\n/g;
+ iseq $1, "bar";
+ }
+
+
+ {
+ local $Message = 'package $i inside (?{ }), ' .
+ 'saved substrings and changing $_';
+ our @a = qw [foo bar];
+ our @b = ();
+ s/(\w)(?{push @b, $1})/,$1,/g for @a;
+ iseq "@b", "f o o b a r";
+ iseq "@a", ",f,,o,,o, ,b,,a,,r,";
+
+ local $Message = 'lexical $i inside (?{ }), ' .
+ 'saved substrings and changing $_';
+ no warnings 'closure';
+ my @c = qw [foo bar];
+ my @d = ();
+ s/(\w)(?{push @d, $1})/,$1,/g for @c;
+ iseq "@d", "f o o b a r";
+ iseq "@c", ",f,,o,,o, ,b,,a,,r,";
+ }
+
+
+ {
+ local $Message = 'Brackets';
+ our $brackets;
+ $brackets = qr {
+ { (?> [^{}]+ | (??{ $brackets }) )* }
+ }x;
+
+ ok "{{}" =~ $brackets;
+ iseq $&, "{}";
+ ok "something { long { and } hairy" =~ $brackets;
+ iseq $&, "{ and }";
+ ok "something { long { and } hairy" =~ m/((??{ $brackets }))/;
+ iseq $&, "{ and }";
+ }
+
+
+ {
+ $_ = "a-a\nxbb";
+ pos = 1;
+ nok m/^-.*bb/mg, '$_ = "a-a\nxbb"; m/^-.*bb/mg';
+ }
+
+
+ {
+ local $Message = '\G anchor checks';
+ my $text = "aaXbXcc";
+ pos ($text) = 0;
+ ok $text !~ /\GXb*X/g;
+ }
+
+
+ {
+ $_ = "xA\n" x 500;
+ nok /^\s*A/m, '$_ = "xA\n" x 500; /^\s*A/m"';
+
+ my $text = "abc dbf";
+ my @res = ($text =~ /.*?(b).*?\b/g);
+ iseq "@res", "b b", '\b is not special';
+ }
+
+
+ {
+ local $Message = '\S, [\S], \s, [\s]';
+ my @a = map chr, 0 .. 255;
+ my @b = grep /\S/, @a;
+ my @c = grep /[^\s]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\S/, @a;
+ @c = grep /[\S]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\s/, @a;
+ @c = grep /[^\S]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\s/, @a;
+ @c = grep /[\s]/, @a;
+ iseq "@b", "@c";
+ }
+ {
+ local $Message = '\D, [\D], \d, [\d]';
+ my @a = map chr, 0 .. 255;
+ my @b = grep /\D/, @a;
+ my @c = grep /[^\d]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\D/, @a;
+ @c = grep /[\D]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\d/, @a;
+ @c = grep /[^\D]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\d/, @a;
+ @c = grep /[\d]/, @a;
+ iseq "@b", "@c";
+ }
+ {
+ local $Message = '\W, [\W], \w, [\w]';
+ my @a = map chr, 0 .. 255;
+ my @b = grep /\W/, @a;
+ my @c = grep /[^\w]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\W/, @a;
+ @c = grep /[\W]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\w/, @a;
+ @c = grep /[^\W]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\w/, @a;
+ @c = grep /[\w]/, @a;
+ iseq "@b", "@c";
+ }
+
+
+ {
+ # see if backtracking optimization works correctly
+ local $Message = 'Backtrack optimization';
+ ok "\n\n" =~ /\n $ \n/x;
+ ok "\n\n" =~ /\n* $ \n/x;
+ ok "\n\n" =~ /\n+ $ \n/x;
+ ok "\n\n" =~ /\n? $ \n/x;
+ ok "\n\n" =~ /\n*? $ \n/x;
+ ok "\n\n" =~ /\n+? $ \n/x;
+ ok "\n\n" =~ /\n?? $ \n/x;
+ ok "\n\n" !~ /\n*+ $ \n/x;
+ ok "\n\n" !~ /\n++ $ \n/x;
+ ok "\n\n" =~ /\n?+ $ \n/x;
+ }
+
+
+ {
+ package S;
+ use overload '""' => sub {'Object S'};
+ sub new {bless []}
+
+ local $Message = "Ref stringification";
+ ::ok do { \my $v} =~ /^SCALAR/, "Scalar ref stringification";
+ ::ok do {\\my $v} =~ /^REF/, "Ref ref stringification";
+ ::ok [] =~ /^ARRAY/, "Array ref stringification";
+ ::ok {} =~ /^HASH/, "Hash ref stringification";
+ ::ok 'S' -> new =~ /^Object S/, "Object stringification";
+ }
+
+
+ {
+ local $Message = "Test result of match used as match";
+ ok 'a1b' =~ ('xyz' =~ /y/);
+ iseq $`, 'a';
+ ok 'a1b' =~ ('xyz' =~ /t/);
+ iseq $`, 'a';
+ }
+
+
+ {
+ local $Message = '"1" is not \s';
+ may_not_warn sub {ok ("1\n" x 102) !~ /^\s*\n/m};
+ }
+
+
+ {
+ local $Message = '\s, [[:space:]] and [[:blank:]]';
+ my %space = (spc => " ",
+ tab => "\t",
+ cr => "\r",
+ lf => "\n",
+ ff => "\f",
+ # There's no \v but the vertical tabulator seems miraculously
+ # be 11 both in ASCII and EBCDIC.
+ vt => chr(11),
+ false => "space");
+
+ my @space0 = sort grep {$space {$_} =~ /\s/ } keys %space;
+ my @space1 = sort grep {$space {$_} =~ /[[:space:]]/} keys %space;
+ my @space2 = sort grep {$space {$_} =~ /[[:blank:]]/} keys %space;
+
+ iseq "@space0", "cr ff lf spc tab";
+ iseq "@space1", "cr ff lf spc tab vt";
+ iseq "@space2", "spc tab";
+ }
+
+
+ {
+ local $BugId = '20000731.001';
+ ok "A \x{263a} B z C" =~ /A . B (??{ "z" }) C/,
+ "Match UTF-8 char in presense of (??{ })";
+ }
+
+
+ {
+ local $BugId = '20001021.005';
+ no warnings 'uninitialized';
+ ok undef =~ /^([^\/]*)(.*)$/, "Used to cause a SEGV";
+ }
+
+
+ SKIP:
+ {
+ local $Message = '\C matches octet';
+ $_ = "a\x{100}b";
+ ok /(.)(\C)(\C)(.)/ or skip q [\C doesn't match], 4;
+ iseq $1, "a";
+ if ($IS_ASCII) { # ASCII (or equivalent), should be UTF-8
+ iseq $2, "\xC4";
+ iseq $3, "\x80";
+ }
+ elsif ($IS_EBCDIC) { # EBCDIC (or equivalent), should be UTF-EBCDIC
+ iseq $2, "\x8C";
+ iseq $3, "\x41";
+ }
+ else {
+ SKIP: {
+ ok 0, "Unexpected platform", "ord ('A') = $ordA";
+ skip "Unexpected platform";
+ }
+ }
+ iseq $4, "b";
+ }
+
+
+ SKIP:
+ {
+ local $Message = '\C matches octet';
+ $_ = "\x{100}";
+ ok /(\C)/g or skip q [\C doesn't match], 2;
+ if ($IS_ASCII) {
+ iseq $1, "\xC4";
+ }
+ elsif ($IS_EBCDIC) {
+ iseq $1, "\x8C";
+ }
+ else {
+ ok 0, "Unexpected platform", "ord ('A') = $ordA";
+ }
+ ok /(\C)/g or skip q [\C doesn't match];
+ if ($IS_ASCII) {
+ iseq $1, "\x80";
+ }
+ elsif ($IS_EBCDIC) {
+ iseq $1, "\x41";
+ }
+ else {
+ ok 0, "Unexpected platform", "ord ('A') = $ordA";
+ }
+ }
+
+
+ {
+ # Japhy -- added 03/03/2001
+ () = (my $str = "abc") =~ /(...)/;
+ $str = "def";
+ iseq $1, "abc", 'Changing subject does not modify $1';
+ }
+
+
+ SKIP:
+ {
+ # The trick is that in EBCDIC the explicit numeric range should
+ # match (as also in non-EBCDIC) but the explicit alphabetic range
+ # should not match.
+ ok "\x8e" =~ /[\x89-\x91]/, '"\x8e" =~ /[\x89-\x91]/';
+ ok "\xce" =~ /[\xc9-\xd1]/, '"\xce" =~ /[\xc9-\xd1]/';
+
+ skip "Not an EBCDIC platform", 2 unless ord ('i') == 0x89 &&
+ ord ('J') == 0xd1;
+
+ # In most places these tests would succeed since \x8e does not
+ # in most character sets match 'i' or 'j' nor would \xce match
+ # 'I' or 'J', but strictly speaking these tests are here for
+ # the good of EBCDIC, so let's test these only there.
+ nok "\x8e" !~ /[i-j]/, '"\x8e" !~ /[i-j]/';
+ nok "\xce" !~ /[I-J]/, '"\xce" !~ /[I-J]/';
+ }
+
+
+ {
+ ok "\x{ab}" =~ /\x{ab}/, '"\x{ab}" =~ /\x{ab}/ ';
+ ok "\x{abcd}" =~ /\x{abcd}/, '"\x{abcd}" =~ /\x{abcd}/';
+ }
+
+
+ {
+ local $Message = 'bug id 20001008.001';
+
+ my @x = ("stra\337e 138", "stra\337e 138");
+ for (@x) {
+ ok s/(\d+)\s*([\w\-]+)/$1 . uc $2/e;
+ ok my ($latin) = /^(.+)(?:\s+\d)/;
+ iseq $latin, "stra\337e";
+ ok $latin =~ s/stra\337e/straße/;
+ #
+ # Previous code follows, but outcommented - there were no tests.
+ #
+ # $latin =~ s/stra\337e/straße/; # \303\237 after the 2nd a
+ # use utf8; # needed for the raw UTF-8
+ # $latin =~ s!(s)tr(?:aß|s+e)!$1tr.!; # \303\237 after the a
+ }
+ }
+
+
+ {
+ local $Message = 'Test \x escapes';
+ ok "ba\xd4c" =~ /([a\xd4]+)/ && $1 eq "a\xd4";
+ ok "ba\xd4c" =~ /([a\xd4]+)/ && $1 eq "a\x{d4}";
+ ok "ba\x{d4}c" =~ /([a\xd4]+)/ && $1 eq "a\x{d4}";
+ ok "ba\x{d4}c" =~ /([a\xd4]+)/ && $1 eq "a\xd4";
+ ok "ba\xd4c" =~ /([a\x{d4}]+)/ && $1 eq "a\xd4";
+ ok "ba\xd4c" =~ /([a\x{d4}]+)/ && $1 eq "a\x{d4}";
+ ok "ba\x{d4}c" =~ /([a\x{d4}]+)/ && $1 eq "a\x{d4}";
+ ok "ba\x{d4}c" =~ /([a\x{d4}]+)/ && $1 eq "a\xd4";
+ }
+
+
+ {
+ local $BugId = '20001028.003';
+
+ # Fist half of the bug.
+ local $Message = 'HEBREW ACCENT QADMA matched by .*';
+ my $X = chr (1448);
+ ok my ($Y) = $X =~ /(.*)/;
+ iseq $Y, v1448;
+ iseq length ($Y), 1;
+
+ # Second half of the bug.
+ $Message = 'HEBREW ACCENT QADMA in replacement';
+ $X = '';
+ $X =~ s/^/chr(1488)/e;
+ iseq length $X, 1;
+ iseq ord ($X), 1488;
+ }
+
+
+ {
+ local $BugId = '20001108.001';
+ local $Message = 'Repeated s///';
+ my $X = "Szab\x{f3},Bal\x{e1}zs";
+ my $Y = $X;
+ $Y =~ s/(B)/$1/ for 0 .. 3;
+ iseq $Y, $X;
+ iseq $X, "Szab\x{f3},Bal\x{e1}zs";
+ }
+
+
+ {
+ local $BugId = '20000517.001';
+ local $Message = 's/// on UTF-8 string';
+ my $x = "\x{100}A";
+ $x =~ s/A/B/;
+ iseq $x, "\x{100}B";
+ iseq length $x, 2;
+ }
+
+
+ {
+ local $BugId = '20001230.002';
+ local $Message = '\C and É';
+ ok "École" =~ /^\C\C(.)/ && $1 eq 'c';
+ ok "École" =~ /^\C\C(c)/;
+ }
+
+
+ SKIP:
+ {
+ local $Message = 'Match code points > 255';
+ $_ = "abc\x{100}\x{200}\x{300}\x{380}\x{400}defg";
+ ok /(.\x{300})./ or skip "No match", 4;
+ ok $` eq "abc\x{100}" && length ($`) == 4;
+ ok $& eq "\x{200}\x{300}\x{380}" && length ($&) == 3;
+ ok $' eq "\x{400}defg" && length ($') == 5;
+ ok $1 eq "\x{200}\x{300}" && length ($1) == 2;
+ }
+
+
+ {
+ # The original bug report had 'no utf8' here but that was irrelevant.
+ local $BugId = '20010306.008';
+ local $Message = "Don't dump core";
+ my $a = "a\x{1234}";
+ ok $a =~ m/\w/; # used to core dump.
+ }
+
+
+ {
+ local $BugId = '20010410.006';
+ local $Message = '/g in scalar context';
+ for my $rx ('/(.*?)\{(.*?)\}/csg',
+ '/(.*?)\{(.*?)\}/cg',
+ '/(.*?)\{(.*?)\}/sg',
+ '/(.*?)\{(.*?)\}/g',
+ '/(.+?)\{(.+?)\}/csg',) {
+ my $i = 0;
+ my $input = "a{b}c{d}";
+ eval <<" --";
+ while (eval \$input =~ $rx) {
+ \$i ++;
+ }
+ --
+ iseq $i, 2;
+ }
+ }
+
+
+ {
+ my $x = "\x{10FFFD}";
+ $x =~ s/(.)/$1/g;
+ ok ord($x) == 0x10FFFD && length($x) == 1, "From Robin Houston";
+ }
+
+
+ {
+ my %d = (
+ "7f" => [0, 0, 0],
+ "80" => [1, 1, 0],
+ "ff" => [1, 1, 0],
+ "100" => [0, 1, 1],
+ );
+ SKIP:
+ while (my ($code, $match) = each %d) {
+ local $Message = "Properties of \\x$code";
+ my $char = eval qq ["\\x{$code}"];
+ my $i = 0;
+ ok (($char =~ /[\x80-\xff]/) xor !$$match [$i ++]);
+ ok (($char =~ /[\x80-\x{100}]/) xor !$$match [$i ++]);
+ ok (($char =~ /[\x{100}]/) xor !$$match [$i ++]);
+ }
+ }
+
+
+ {
+ # From Japhy
+ local $Message;
+ must_warn 'qr/(?c)/', '^Useless \(\?c\)';
+ must_warn 'qr/(?-c)/', '^Useless \(\?-c\)';
+ must_warn 'qr/(?g)/', '^Useless \(\?g\)';
+ must_warn 'qr/(?-g)/', '^Useless \(\?-g\)';
+ must_warn 'qr/(?o)/', '^Useless \(\?o\)';
+ must_warn 'qr/(?-o)/', '^Useless \(\?-o\)';
+
+ # Now test multi-error regexes
+ must_warn 'qr/(?g-o)/', '^Useless \(\?g\).*\nUseless \(\?-o\)';
+ must_warn 'qr/(?g-c)/', '^Useless \(\?g\).*\nUseless \(\?-c\)';
+ # (?c) means (?g) error won't be thrown
+ must_warn 'qr/(?o-cg)/', '^Useless \(\?o\).*\nUseless \(\?-c\)';
+ must_warn 'qr/(?ogc)/', '^Useless \(\?o\).*\nUseless \(\?g\).*\n' .
+ 'Useless \(\?c\)';
+ }
+
+
+ {
+ local $Message = "/x tests";
+ $_ = "foo";
+ eval_ok <<" --";
+ /f
+ o\r
+ o
+ \$
+ /x
+ --
+ eval_ok <<" --";
+ /f
+ o
+ o
+ \$\r
+ /x
+ --
+ }
+
+
+ {
+ local $Message = "/o feature";
+ sub test_o {$_ [0] =~ /$_[1]/o; return $1}
+ iseq test_o ('abc', '(.)..'), 'a';
+ iseq test_o ('abc', '..(.)'), 'a';
+ }
+
+
+ {
+ local $BugId = "20010619.003";
+ # Amazingly vertical tabulator is the same in ASCII and EBCDIC.
+ for ("\n", "\t", "\014", "\r") {
+ ok !/[[:print:]]/, "'$_' not in [[:print:]]";
+ }
+ for (" ") {
+ ok /[[:print:]]/, "'$_' in [[:print:]]";
+ }
+ }
+
+
+ {
+ # Test basic $^N usage outside of a regex
+ local $Message = '$^N usage outside of a regex';
+ my $x = "abcdef";
+ ok ($x =~ /cde/ and !defined $^N);
+ ok ($x =~ /(cde)/ and $^N eq "cde");
+ ok ($x =~ /(c)(d)(e)/ and $^N eq "e");
+ ok ($x =~ /(c(d)e)/ and $^N eq "cde");
+ ok ($x =~ /(foo)|(c(d)e)/ and $^N eq "cde");
+ ok ($x =~ /(c(d)e)|(foo)/ and $^N eq "cde");
+ ok ($x =~ /(c(d)e)|(abc)/ and $^N eq "abc");
+ ok ($x =~ /(c(d)e)|(abc)x/ and $^N eq "cde");
+ ok ($x =~ /(c(d)e)(abc)?/ and $^N eq "cde");
+ ok ($x =~ /(?:c(d)e)/ and $^N eq "d");
+ ok ($x =~ /(?:c(d)e)(?:f)/ and $^N eq "d");
+ ok ($x =~ /(?:([abc])|([def]))*/ and $^N eq "f");
+ ok ($x =~ /(?:([ace])|([bdf]))*/ and $^N eq "f");
+ ok ($x =~ /(([ace])|([bd]))*/ and $^N eq "e");
+ {ok ($x =~ /(([ace])|([bdf]))*/ and $^N eq "f");}
+ ## Test to see if $^N is automatically localized -- it should now
+ ## have the value set in the previous test.
+ iseq $^N, "e", '$^N is automatically localized';
+
+ # Now test inside (?{ ... })
+ local $Message = '$^N usage inside (?{ ... })';
+ our ($y, $z);
+ ok ($x =~ /a([abc])(?{$y=$^N})c/ and $y eq "b");
+ ok ($x =~ /a([abc]+)(?{$y=$^N})d/ and $y eq "bc");
+ ok ($x =~ /a([abcdefg]+)(?{$y=$^N})d/ and $y eq "bc");
+ ok ($x =~ /(a([abcdefg]+)(?{$y=$^N})d)(?{$z=$^N})e/ and $y eq "bc"
+ and $z eq "abcd");
+ ok ($x =~ /(a([abcdefg]+)(?{$y=$^N})de)(?{$z=$^N})/ and $y eq "bc"
+ and $z eq "abcde");
+
+ }
+
+
+ SKIP:
+ {
+ ## Should probably put in tests for all the POSIX stuff,
+ ## but not sure how to guarantee a specific locale......
+
+ skip "Not an ASCII platform", 2 unless $IS_ASCII;
+ local $Message = 'Test [[:cntrl:]]';
+ my $AllBytes = join "" => map {chr} 0 .. 255;
+ (my $x = $AllBytes) =~ s/[[:cntrl:]]//g;
+ iseq $x, join "", map {chr} 0x20 .. 0x7E, 0x80 .. 0xFF;
+
+ ($x = $AllBytes) =~ s/[^[:cntrl:]]//g;
+ iseq $x, join "", map {chr} 0x00 .. 0x1F, 0x7F;
+ }
+
+
+ {
+ # With /s modifier UTF8 chars were interpreted as bytes
+ local $Message = "UTF-8 chars aren't bytes";
+ my $a = "Hello \x{263A} World";
+ my @a = ($a =~ /./gs);
+ iseq $#a, 12;
+ }
+
+
+ {
+ local $Message = '. matches \n with /s';
+ my $str1 = "foo\nbar";
+ my $str2 = "foo\n\x{100}bar";
+ my ($a, $b) = map {chr} $IS_ASCII ? (0xc4, 0x80) : (0x8c, 0x41);
+ my @a;
+ @a = $str1 =~ /./g; iseq @a, 6; iseq "@a", "f o o b a r";
+ @a = $str1 =~ /./gs; iseq @a, 7; iseq "@a", "f o o \n b a r";
+ @a = $str1 =~ /\C/g; iseq @a, 7; iseq "@a", "f o o \n b a r";
+ @a = $str1 =~ /\C/gs; iseq @a, 7; iseq "@a", "f o o \n b a r";
+ @a = $str2 =~ /./g; iseq @a, 7; iseq "@a", "f o o \x{100} b a r";
+ @a = $str2 =~ /./gs; iseq @a, 8; iseq "@a", "f o o \n \x{100} b a r";
+ @a = $str2 =~ /\C/g; iseq @a, 9; iseq "@a", "f o o \n $a $b b a r";
+ @a = $str2 =~ /\C/gs; iseq @a, 9; iseq "@a", "f o o \n $a $b b a r";
+ }
+
+
+ {
+ # [ID 20010814.004] pos() doesn't work when using =~m// in list context
+ local $BugId = '20010814.004';
+ $_ = "ababacadaea";
+ my $a = join ":", /b./gc;
+ my $b = join ":", /a./gc;
+ my $c = pos;
+ iseq "$a $b $c", 'ba:ba ad:ae 10', "pos() works with () = m//";
+ }
+
+
+ {
+ # [ID 20010407.006] matching utf8 return values from
+ # functions does not work
+ local $BugId = '20010407.006';
+ local $Message = 'UTF-8 return values from functions';
+ package ID_20010407_006;
+ sub x {"a\x{1234}"}
+ my $x = x;
+ my $y;
+ ::ok $x =~ /(..)/;
+ $y = $1;
+ ::ok length ($y) == 2 && $y eq $x;
+ ::ok x =~ /(..)/;
+ $y = $1;
+ ::ok length ($y) == 2 && $y eq $x;
+ }
+
+
+ {
+ no warnings 'digit';
+ # Check that \x## works. 5.6.1 and 5.005_03 fail some of these.
+ my $x;
+ $x = "\x4e" . "E";
+ ok ($x =~ /^\x4EE$/, "Check only 2 bytes of hex are matched.");
+
+ $x = "\x4e" . "i";
+ ok ($x =~ /^\x4Ei$/, "Check that invalid hex digit stops it (2)");
+
+ $x = "\x4" . "j";
+ ok ($x =~ /^\x4j$/, "Check that invalid hex digit stops it (1)");
+
+ $x = "\x0" . "k";
+ ok ($x =~ /^\xk$/, "Check that invalid hex digit stops it (0)");
+
+ $x = "\x0" . "x";
+ ok ($x =~ /^\xx$/, "\\xx isn't to be treated as \\0");
+
+ $x = "\x0" . "xa";
+ ok ($x =~ /^\xxa$/, "\\xxa isn't to be treated as \\xa");
+
+ $x = "\x9" . "_b";
+ ok ($x =~ /^\x9_b$/, "\\x9_b isn't to be treated as \\x9b");
+
+ # and now again in [] ranges
+
+ $x = "\x4e" . "E";
+ ok ($x =~ /^[\x4EE]{2}$/, "Check only 2 bytes of hex are matched.");
+
+ $x = "\x4e" . "i";
+ ok ($x =~ /^[\x4Ei]{2}$/, "Check that invalid hex digit stops it (2)");
+
+ $x = "\x4" . "j";
+ ok ($x =~ /^[\x4j]{2}$/, "Check that invalid hex digit stops it (1)");
+
+ $x = "\x0" . "k";
+ ok ($x =~ /^[\xk]{2}$/, "Check that invalid hex digit stops it (0)");
+
+ $x = "\x0" . "x";
+ ok ($x =~ /^[\xx]{2}$/, "\\xx isn't to be treated as \\0");
+
+ $x = "\x0" . "xa";
+ ok ($x =~ /^[\xxa]{3}$/, "\\xxa isn't to be treated as \\xa");
+
+ $x = "\x9" . "_b";
+ ok ($x =~ /^[\x9_b]{3}$/, "\\x9_b isn't to be treated as \\x9b");
+
+ # Check that \x{##} works. 5.6.1 fails quite a few of these.
+
+ $x = "\x9b";
+ ok ($x =~ /^\x{9_b}$/, "\\x{9_b} is to be treated as \\x9b");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^\x{9_b}y$/, "\\x{9_b} is to be treated as \\x9b (again)");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^\x{9b_}y$/, "\\x{9b_} is to be treated as \\x9b");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^\x{9_bq}y$/, "\\x{9_bc} is to be treated as \\x9b");
+
+ $x = "\x0" . "y";
+ ok ($x =~ /^\x{x9b}y$/, "\\x{x9b} is to be treated as \\x0");
+
+ $x = "\x0" . "y";
+ ok ($x =~ /^\x{0x9b}y$/, "\\x{0x9b} is to be treated as \\x0");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^\x{09b}y$/, "\\x{09b} is to be treated as \\x9b");
+
+ $x = "\x9b";
+ ok ($x =~ /^[\x{9_b}]$/, "\\x{9_b} is to be treated as \\x9b");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^[\x{9_b}y]{2}$/,
+ "\\x{9_b} is to be treated as \\x9b (again)");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^[\x{9b_}y]{2}$/, "\\x{9b_} is to be treated as \\x9b");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^[\x{9_bq}y]{2}$/, "\\x{9_bc} is to be treated as \\x9b");
+
+ $x = "\x0" . "y";
+ ok ($x =~ /^[\x{x9b}y]{2}$/, "\\x{x9b} is to be treated as \\x0");
+
+ $x = "\x0" . "y";
+ ok ($x =~ /^[\x{0x9b}y]{2}$/, "\\x{0x9b} is to be treated as \\x0");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^[\x{09b}y]{2}$/, "\\x{09b} is to be treated as \\x9b");
+
+ }
+
+
+ {
+ # High bit bug -- japhy
+ my $x = "ab\200d";
+ ok $x =~ /.*?\200/, "High bit fine";
+ }
+
+
+ {
+ # The basic character classes and Unicode
+ ok "\x{0100}" =~ /\w/, 'LATIN CAPITAL LETTER A WITH MACRON in /\w/';
+ ok "\x{0660}" =~ /\d/, 'ARABIC-INDIC DIGIT ZERO in /\d/';
+ ok "\x{1680}" =~ /\s/, 'OGHAM SPACE MARK in /\s/';
+ }
+
+
+ {
+ local $Message = "Folding matches and Unicode";
+ ok "a\x{100}" =~ /A/i;
+ ok "A\x{100}" =~ /a/i;
+ ok "a\x{100}" =~ /a/i;
+ ok "A\x{100}" =~ /A/i;
+ ok "\x{101}a" =~ /\x{100}/i;
+ ok "\x{100}a" =~ /\x{100}/i;
+ ok "\x{101}a" =~ /\x{101}/i;
+ ok "\x{100}a" =~ /\x{101}/i;
+ ok "a\x{100}" =~ /A\x{100}/i;
+ ok "A\x{100}" =~ /a\x{100}/i;
+ ok "a\x{100}" =~ /a\x{100}/i;
+ ok "A\x{100}" =~ /A\x{100}/i;
+ ok "a\x{100}" =~ /[A]/i;
+ ok "A\x{100}" =~ /[a]/i;
+ ok "a\x{100}" =~ /[a]/i;
+ ok "A\x{100}" =~ /[A]/i;
+ ok "\x{101}a" =~ /[\x{100}]/i;
+ ok "\x{100}a" =~ /[\x{100}]/i;
+ ok "\x{101}a" =~ /[\x{101}]/i;
+ ok "\x{100}a" =~ /[\x{101}]/i;
+ }
+
+
+ {
+ use charnames ':full';
+ local $Message = "Folding 'LATIN LETTER A WITH GRAVE'";
+
+ my $lower = "\N{LATIN SMALL LETTER A WITH GRAVE}";
+ my $UPPER = "\N{LATIN CAPITAL LETTER A WITH GRAVE}";
+
+ ok $lower =~ m/$UPPER/i;
+ ok $UPPER =~ m/$lower/i;
+ ok $lower =~ m/[$UPPER]/i;
+ ok $UPPER =~ m/[$lower]/i;
+
+ local $Message = "Folding 'GREEK LETTER ALPHA WITH VRACHY'";
+
+ $lower = "\N{GREEK CAPITAL LETTER ALPHA WITH VRACHY}";
+ $UPPER = "\N{GREEK SMALL LETTER ALPHA WITH VRACHY}";
+
+ ok $lower =~ m/$UPPER/i;
+ ok $UPPER =~ m/$lower/i;
+ ok $lower =~ m/[$UPPER]/i;
+ ok $UPPER =~ m/[$lower]/i;
+
+ local $Message = "Folding 'LATIN LETTER Y WITH DIAERESIS'";
+
+ $lower = "\N{LATIN SMALL LETTER Y WITH DIAERESIS}";
+ $UPPER = "\N{LATIN CAPITAL LETTER Y WITH DIAERESIS}";
+
+ ok $lower =~ m/$UPPER/i;
+ ok $UPPER =~ m/$lower/i;
+ ok $lower =~ m/[$UPPER]/i;
+ ok $UPPER =~ m/[$lower]/i;
+ }
+
+
+ {
+ use charnames ':full';
+ local $PatchId = "13843";
+ local $Message = "GREEK CAPITAL LETTER SIGMA vs " .
+ "COMBINING GREEK PERISPOMENI";
+
+ my $SIGMA = "\N{GREEK CAPITAL LETTER SIGMA}";
+ my $char = "\N{COMBINING GREEK PERISPOMENI}";
+
+ may_not_warn sub {ok "_:$char:_" !~ m/_:$SIGMA:_/i};
+ }
+
+
+ {
+ local $Message = '\X';
+ use charnames ':full';
+
+ ok "a!" =~ /^(\X)!/ && $1 eq "a";
+ ok "\xDF!" =~ /^(\X)!/ && $1 eq "\xDF";
+ ok "\x{100}!" =~ /^(\X)!/ && $1 eq "\x{100}";
+ ok "\x{100}\x{300}!" =~ /^(\X)!/ && $1 eq "\x{100}\x{300}";
+ ok "\N{LATIN CAPITAL LETTER E}!" =~ /^(\X)!/ &&
+ $1 eq "\N{LATIN CAPITAL LETTER E}";
+ ok "\N{LATIN CAPITAL LETTER E}\N{COMBINING GRAVE ACCENT}!"
+ =~ /^(\X)!/ &&
+ $1 eq "\N{LATIN CAPITAL LETTER E}\N{COMBINING GRAVE ACCENT}";
+
+ local $Message = '\C and \X';
+ ok "!abc!" =~ /a\Cc/;
+ ok "!abc!" =~ /a\Xc/;
+ }
+
+
+ {
+ local $Message = "Final Sigma";
+
+ my $SIGMA = "\x{03A3}"; # CAPITAL
+ my $Sigma = "\x{03C2}"; # SMALL FINAL
+ my $sigma = "\x{03C3}"; # SMALL
+
+ ok $SIGMA =~ /$SIGMA/i;
+ ok $SIGMA =~ /$Sigma/i;
+ ok $SIGMA =~ /$sigma/i;
+
+ ok $Sigma =~ /$SIGMA/i;
+ ok $Sigma =~ /$Sigma/i;
+ ok $Sigma =~ /$sigma/i;
+
+ ok $sigma =~ /$SIGMA/i;
+ ok $sigma =~ /$Sigma/i;
+ ok $sigma =~ /$sigma/i;
+
+ ok $SIGMA =~ /[$SIGMA]/i;
+ ok $SIGMA =~ /[$Sigma]/i;
+ ok $SIGMA =~ /[$sigma]/i;
+
+ ok $Sigma =~ /[$SIGMA]/i;
+ ok $Sigma =~ /[$Sigma]/i;
+ ok $Sigma =~ /[$sigma]/i;
+
+ ok $sigma =~ /[$SIGMA]/i;
+ ok $sigma =~ /[$Sigma]/i;
+ ok $sigma =~ /[$sigma]/i;
+
+ local $Message = "More final Sigma";
+
+ my $S3 = "$SIGMA$Sigma$sigma";
+
+ ok ":$S3:" =~ /:(($SIGMA)+):/i && $1 eq $S3 && $2 eq $sigma;
+ ok ":$S3:" =~ /:(($Sigma)+):/i && $1 eq $S3 && $2 eq $sigma;
+ ok ":$S3:" =~ /:(($sigma)+):/i && $1 eq $S3 && $2 eq $sigma;
+
+ ok ":$S3:" =~ /:(([$SIGMA])+):/i && $1 eq $S3 && $2 eq $sigma;
+ ok ":$S3:" =~ /:(([$Sigma])+):/i && $1 eq $S3 && $2 eq $sigma;
+ ok ":$S3:" =~ /:(([$sigma])+):/i && $1 eq $S3 && $2 eq $sigma;
+ }
+
+
+ {
+ use charnames ':full';
+ local $Message = "Parlez-Vous " .
+ "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais?";
+
+ ok "Fran\N{LATIN SMALL LETTER C}ais" =~ /Fran.ais/ &&
+ $& eq "Francais";
+ ok "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~ /Fran.ais/ &&
+ $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais";
+ ok "Fran\N{LATIN SMALL LETTER C}ais" =~ /Fran\Cais/ &&
+ $& eq "Francais";
+ # COMBINING CEDILLA is two bytes when encoded
+ ok "Franc\N{COMBINING CEDILLA}ais" =~ /Franc\C\Cais/;
+ ok "Fran\N{LATIN SMALL LETTER C}ais" =~ /Fran\Xais/ &&
+ $& eq "Francais";
+ ok "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~ /Fran\Xais/ &&
+ $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais";
+ ok "Franc\N{COMBINING CEDILLA}ais" =~ /Fran\Xais/ &&
+ $& eq "Franc\N{COMBINING CEDILLA}ais";
+ ok "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~
+ /Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais/ &&
+ $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais";
+ ok "Franc\N{COMBINING CEDILLA}ais" =~ /Franc\N{COMBINING CEDILLA}ais/ &&
+ $& eq "Franc\N{COMBINING CEDILLA}ais";
+
+ my @f = (
+ ["Fran\N{LATIN SMALL LETTER C}ais", "Francais"],
+ ["Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais",
+ "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais"],
+ ["Franc\N{COMBINING CEDILLA}ais", "Franc\N{COMBINING CEDILLA}ais"],
+ );
+ foreach my $entry (@f) {
+ my ($subject, $match) = @$entry;
+ ok $subject =~ /Fran(?:c\N{COMBINING CEDILLA}?|
+ \N{LATIN SMALL LETTER C WITH CEDILLA})ais/x &&
+ $& eq $match;
+ }
+ }
+
+
+ {
+ local $Message = "Lingering (and useless) UTF8 flag doesn't mess up /i";
+ my $pat = "ABcde";
+ my $str = "abcDE\x{100}";
+ chop $str;
+ ok $str =~ /$pat/i;
+
+ $pat = "ABcde\x{100}";
+ $str = "abcDE";
+ chop $pat;
+ ok $str =~ /$pat/i;
+
+ $pat = "ABcde\x{100}";
+ $str = "abcDE\x{100}";
+ chop $pat;
+ chop $str;
+ ok $str =~ /$pat/i;
+ }
+
+
+ {
+ use charnames ':full';
+ local $Message = "LATIN SMALL LETTER SHARP S " .
+ "(\N{LATIN SMALL LETTER SHARP S})";
+
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /\N{LATIN SMALL LETTER SHARP S}/;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /\N{LATIN SMALL LETTER SHARP S}/i;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /[\N{LATIN SMALL LETTER SHARP S}]/;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /[\N{LATIN SMALL LETTER SHARP S}]/i;
+
+ ok "ss" =~ /\N{LATIN SMALL LETTER SHARP S}/i;
+ ok "SS" =~ /\N{LATIN SMALL LETTER SHARP S}/i;
+ ok "ss" =~ /[\N{LATIN SMALL LETTER SHARP S}]/i;
+ ok "SS" =~ /[\N{LATIN SMALL LETTER SHARP S}]/i;
+
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~ /ss/i;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~ /SS/i;
+
+ local $Message = "Unoptimized named sequence in class";
+ ok "ss" =~ /[\N{LATIN SMALL LETTER SHARP S}x]/i;
+ ok "SS" =~ /[\N{LATIN SMALL LETTER SHARP S}x]/i;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /[\N{LATIN SMALL LETTER SHARP S}x]/;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /[\N{LATIN SMALL LETTER SHARP S}x]/i;
+ }
+
+
+ {
+ # More whitespace: U+0085, U+2028, U+2029\n";
+
+ # U+0085, U+00A0 need to be forced to be Unicode, the \x{100} does that.
+ SKIP: {
+ skip "EBCDIC platform", 4 if $IS_EBCDIC;
+ # Do \x{0015} and \x{0041} match \s in EBCDIC?
+ ok "<\x{100}\x{0085}>" =~ /<\x{100}\s>/, '\x{0085} in \s';
+ ok "<\x{0085}>" =~ /<\v>/, '\x{0085} in \v';
+ ok "<\x{100}\x{00A0}>" =~ /<\x{100}\s>/, '\x{00A0} in \s';
+ ok "<\x{00A0}>" =~ /<\h>/, '\x{00A0} in \h';
+ }
+ my @h = map {sprintf "%05x" => $_} 0x01680, 0x0180E, 0x02000 .. 0x0200A,
+ 0x0202F, 0x0205F, 0x03000;
+ my @v = map {sprintf "%05x" => $_} 0x02028, 0x02029;
+
+ my @H = map {sprintf "%05x" => $_} 0x01361, 0x0200B, 0x02408, 0x02420,
+ 0x0303F, 0xE0020;
+ my @V = map {sprintf "%05x" => $_} 0x0008A .. 0x0008D, 0x00348, 0x10100,
+ 0xE005F, 0xE007C;
+
+ for my $hex (@h) {
+ my $str = eval qq ["<\\x{$hex}>"];
+ ok $str =~ /<\s>/, "\\x{$hex} in \\s";
+ ok $str =~ /<\h>/, "\\x{$hex} in \\h";
+ ok $str !~ /<\v>/, "\\x{$hex} not in \\v";
+ }
+
+ for my $hex (@v) {
+ my $str = eval qq ["<\\x{$hex}>"];
+ ok $str =~ /<\s>/, "\\x{$hex} in \\s";
+ ok $str =~ /<\v>/, "\\x{$hex} in \\v";
+ ok $str !~ /<\h>/, "\\x{$hex} not in \\h";
+ }
+
+ for my $hex (@H) {
+ my $str = eval qq ["<\\x{$hex}>"];
+ ok $str =~ /<\S>/, "\\x{$hex} in \\S";
+ ok $str =~ /<\H>/, "\\x{$hex} in \\H";
+ }
+
+ for my $hex (@V) {
+ my $str = eval qq ["<\\x{$hex}>"];
+ ok $str =~ /<\S>/, "\\x{$hex} in \\S";
+ ok $str =~ /<\V>/, "\\x{$hex} in \\V";
+ }
+ }
+
+
+ {
+ # . with /s should work on characters, as opposed to bytes
+ local $Message = ". with /s works on characters, not bytes";
+
+ my $s = "\x{e4}\x{100}";
+ # This is not expected to match: the point is that
+ # neither should we get "Malformed UTF-8" warnings.
+ may_not_warn sub {$s =~ /\G(.+?)\n/gcs}, "No 'Malformed UTF-8' warning";
+
+ my @c;
+ push @c => $1 while $s =~ /\G(.)/gs;
+
+ local $" = "";
+ iseq "@c", $s;
+
+ # Test only chars < 256
+ my $t1 = "Q003\n\n\x{e4}\x{f6}\n\nQ004\n\n\x{e7}";
+ my $r1 = "";
+ while ($t1 =~ / \G ( .+? ) \n\s+ ( .+? ) ( $ | \n\s+ ) /xgcs) {
+ $r1 .= $1 . $2;
+ }
+
+ my $t2 = $t1 . "\x{100}"; # Repeat with a larger char
+ my $r2 = "";
+ while ($t2 =~ / \G ( .+? ) \n\s+ ( .+? ) ( $ | \n\s+ ) /xgcs) {
+ $r2 .= $1 . $2;
+ }
+ $r2 =~ s/\x{100}//;
+
+ iseq $r1, $r2;
+ }
+
+
+ {
+ local $Message = "Unicode lookbehind";
+ ok "A\x{100}B" =~ /(?<=A.)B/;
+ ok "A\x{200}\x{300}B" =~ /(?<=A..)B/;
+ ok "\x{400}AB" =~ /(?<=\x{400}.)B/;
+ ok "\x{500}\x{600}B" =~ /(?<=\x{500}.)B/;
+
+ # Original code also contained:
+ # ok "\x{500\x{600}}B" =~ /(?<=\x{500}.)B/;
+ # but that looks like a typo.
+ }
+
+
+ {
+ local $Message = 'UTF-8 hash keys and /$/';
+ # http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters
+ # /2002-01/msg01327.html
+
+ my $u = "a\x{100}";
+ my $v = substr ($u, 0, 1);
+ my $w = substr ($u, 1, 1);
+ my %u = ($u => $u, $v => $v, $w => $w);
+ for (keys %u) {
+ my $m1 = /^\w*$/ ? 1 : 0;
+ my $m2 = $u {$_} =~ /^\w*$/ ? 1 : 0;
+ iseq $m1, $m2;
+ }
+ }
+
+
+ {
+ local $BugId = "20020124.005";
+ local $PatchId = "14795";
+ local $Message = "s///eg";
+
+ for my $char ("a", "\x{df}", "\x{100}") {
+ my $x = "$char b $char";
+ $x =~ s{($char)}{
+ "c" =~ /c/;
+ "x";
+ }ge;
+ iseq substr ($x, 0, 1), substr ($x, -1, 1);
+ }
+ }
+
+
+ {
+ local $Message = "No SEGV in s/// and UTF-8";
+ my $s = "s#\x{100}" x 4;
+ ok $s =~ s/[^\w]/ /g;
+ if ( $ENV{PERL_TEST_LEGACY_POSIX_CC} ) {
+ iseq $s, "s \x{100}" x 4;
+ }
+ else {
+ iseq $s, "s " x 4;
+ }
+ }
+
+
+ {
+ local $Message = "UTF-8 bug (maybe already known?)";
+ my $u = "foo";
+ $u =~ s/./\x{100}/g;
+ iseq $u, "\x{100}\x{100}\x{100}";
+
+ $u = "foobar";
+ $u =~ s/[ao]/\x{100}/g;
+ iseq $u, "f\x{100}\x{100}b\x{100}r";
+
+ $u =~ s/\x{100}/e/g;
+ iseq $u, "feeber";
+ }
+
+
+ {
+ local $Message = "UTF-8 bug with s///";
+ # check utf8/non-utf8 mixtures
+ # try to force all float/anchored check combinations
+
+ my $c = "\x{100}";
+ my $subst;
+ for my $re ("xx.*$c", "x.*$c$c", "$c.*xx", "$c$c.*x",
+ "xx.*(?=$c)", "(?=$c).*xx",) {
+ ok "xxx" !~ /$re/;
+ ok +($subst = "xxx") !~ s/$re//;
+ }
+ for my $re ("xx.*$c*", "$c*.*xx") {
+ ok "xxx" =~ /$re/;
+ ok +($subst = "xxx") =~ s/$re//;
+ iseq $subst, "";
+ }
+ for my $re ("xxy*", "y*xx") {
+ ok "xx$c" =~ /$re/;
+ ok +($subst = "xx$c") =~ s/$re//;
+ iseq $subst, $c;
+ ok "xy$c" !~ /$re/;
+ ok +($subst = "xy$c") !~ s/$re//;
+ }
+ for my $re ("xy$c*z", "x$c*yz") {
+ ok "xyz" =~ /$re/;
+ ok +($subst = "xyz") =~ s/$re//;
+ iseq $subst, "";
+ }
+ }
+
+
+ {
+ local $Message = "qr /.../x";
+ my $R = qr / A B C # D E/x;
+ ok "ABCDE" =~ $R && $& eq "ABC";
+ ok "ABCDE" =~ /$R/ && $& eq "ABC";
+ ok "ABCDE" =~ m/$R/ && $& eq "ABC";
+ ok "ABCDE" =~ /($R)/ && $1 eq "ABC";
+ ok "ABCDE" =~ m/($R)/ && $1 eq "ABC";
+ }
+
+
+ {
+ local $BugId = "20020412.005";
+ local $Message = "Correct pmop flags checked when empty pattern";
+
+ # Requires reuse of last successful pattern.
+ my $num = 123;
+ $num =~ /\d/;
+ for (0 .. 1) {
+ my $match = ?? + 0;
+ ok $match != $_, $Message,
+ sprintf "'match one' %s on %s iteration" =>
+ $match ? 'succeeded' : 'failed',
+ $_ ? 'second' : 'first';
+ }
+ $num =~ /(\d)/;
+ my $result = join "" => $num =~ //g;
+ iseq $result, $num;
+ }
+
+
+ {
+ local $BugId = '20020630.002';
+ local $Message = 'UTF-8 regex matches above 32k';
+ for (['byte', "\x{ff}"], ['utf8', "\x{1ff}"]) {
+ my ($type, $char) = @$_;
+ for my $len (32000, 32768, 33000) {
+ my $s = $char . "f" x $len;
+ my $r = $s =~ /$char([f]*)/gc;
+ ok $r, $Message, "<$type x $len>";
+ ok !$r || pos ($s) == $len + 1, $Message,
+ "<$type x $len>; pos = @{[pos $s]}";
+ }
+ }
+ }
+
+
+ {
+ our $a = bless qr /foo/ => 'Foo';
+ ok 'goodfood' =~ $a, "Reblessed qr // matches";
+ iseq $a, '(?-xism:foo)', "Reblessed qr // stringifies";
+ my $x = "\x{3fe}";
+ my $z = my $y = "\317\276"; # Byte representation of $x
+ $a = qr /$x/;
+ ok $x =~ $a, "UTF-8 interpolation in qr //";
+ ok "a$a" =~ $x, "Stringified qr // preserves UTF-8";
+ ok "a$x" =~ /^a$a\z/, "Interpolated qr // preserves UTF-8";
+ ok "a$x" =~ /^a(??{$a})\z/,
+ "Postponed interpolation of qr // preserves UTF-8";
+ {
+ local $BugId = '17776';
+ iseq length qr /##/x, 12, "## in qr // doesn't corrupt memory";
+ }
+ {
+ use re 'eval';
+ ok "$x$x" =~ /^$x(??{$x})\z/,
+ "Postponed UTF-8 string in UTF-8 re matches UTF-8";
+ ok "$y$x" =~ /^$y(??{$x})\z/,
+ "Postponed UTF-8 string in non-UTF-8 re matches UTF-8";
+ ok "$y$x" !~ /^$y(??{$y})\z/,
+ "Postponed non-UTF-8 string in non-UTF-8 re doesn't match UTF-8";
+ ok "$x$x" !~ /^$x(??{$y})\z/,
+ "Postponed non-UTF-8 string in UTF-8 re doesn't match UTF-8";
+ ok "$y$y" =~ /^$y(??{$y})\z/,
+ "Postponed non-UTF-8 string in non-UTF-8 re matches non-UTF8";
+ ok "$x$y" =~ /^$x(??{$y})\z/,
+ "Postponed non-UTF-8 string in UTF-8 re matches non-UTF8";
+
+ $y = $z; # Reset $y after upgrade.
+ ok "$x$y" !~ /^$x(??{$x})\z/,
+ "Postponed UTF-8 string in UTF-8 re doesn't match non-UTF-8";
+ ok "$y$y" !~ /^$y(??{$x})\z/,
+ "Postponed UTF-8 string in non-UTF-8 re doesn't match non-UTF-8";
+ }
+ }
+
+
+ {
+ local $PatchId = '18179';
+ my $s = "\x{100}" x 5;
+ my $ok = $s =~ /(\x{100}{4})/;
+ my ($ord, $len) = (ord $1, length $1);
+ ok $ok && $ord == 0x100 && $len == 4, "No panic: end_shift";
+ }
+
+
+ {
+ local $BugId = '15763';
+ our $a = "x\x{100}";
+ chop $a; # Leaves the UTF-8 flag
+ $a .= "y"; # 1 byte before 'y'.
+
+ ok $a =~ /^\C/, 'match one \C on 1-byte UTF-8';
+ ok $a =~ /^\C{1}/, 'match \C{1}';
+
+ ok $a =~ /^\Cy/, 'match \Cy';
+ ok $a =~ /^\C{1}y/, 'match \C{1}y';
+
+ ok $a !~ /^\C\Cy/, q {don't match two \Cy};
+ ok $a !~ /^\C{2}y/, q {don't match \C{2}y};
+
+ $a = "\x{100}y"; # 2 bytes before "y"
+
+ ok $a =~ /^\C/, 'match one \C on 2-byte UTF-8';
+ ok $a =~ /^\C{1}/, 'match \C{1}';
+ ok $a =~ /^\C\C/, 'match two \C';
+ ok $a =~ /^\C{2}/, 'match \C{2}';
+
+ ok $a =~ /^\C\C\C/, 'match three \C on 2-byte UTF-8 and a byte';
+ ok $a =~ /^\C{3}/, 'match \C{3}';
+
+ ok $a =~ /^\C\Cy/, 'match two \C';
+ ok $a =~ /^\C{2}y/, 'match \C{2}';
+
+ ok $a !~ /^\C\C\Cy/, q {don't match three \Cy};
+ ok $a !~ /^\C{2}\Cy/, q {don't match \C{2}\Cy};
+ ok $a !~ /^\C{3}y/, q {don't match \C{3}y};
+
+ $a = "\x{1000}y"; # 3 bytes before "y"
+
+ ok $a =~ /^\C/, 'match one \C on three-byte UTF-8';
+ ok $a =~ /^\C{1}/, 'match \C{1}';
+ ok $a =~ /^\C\C/, 'match two \C';
+ ok $a =~ /^\C{2}/, 'match \C{2}';
+ ok $a =~ /^\C\C\C/, 'match three \C';
+ ok $a =~ /^\C{3}/, 'match \C{3}';
+
+ ok $a =~ /^\C\C\C\C/, 'match four \C on three-byte UTF-8 and a byte';
+ ok $a =~ /^\C{4}/, 'match \C{4}';
+
+ ok $a =~ /^\C\C\Cy/, 'match three \Cy';
+ ok $a =~ /^\C{3}y/, 'match \C{3}y';
+
+ ok $a !~ /^\C\C\C\Cy/, q {don't match four \Cy};
+ ok $a !~ /^\C{4}y/, q {don't match \C{4}y};
+ }
+
+
+ {
+ local $\;
+ $_ = 'aaaaaaaaaa';
+ utf8::upgrade($_); chop $_; $\="\n";
+ ok /[^\s]+/, 'm/[^\s]/ utf8';
+ ok /[^\d]+/, 'm/[^\d]/ utf8';
+ ok +($a = $_, $_ =~ s/[^\s]+/./g), 's/[^\s]/ utf8';
+ ok +($a = $_, $a =~ s/[^\d]+/./g), 's/[^\s]/ utf8';
+ }
+
+
+ {
+ local $BugId = '15397';
+ local $Message = 'UTF-8 matching';
+ ok "\x{100}" =~ /\x{100}/;
+ ok "\x{100}" =~ /(\x{100})/;
+ ok "\x{100}" =~ /(\x{100}){1}/;
+ ok "\x{100}\x{100}" =~ /(\x{100}){2}/;
+ ok "\x{100}\x{100}" =~ /(\x{100})(\x{100})/;
+ }
+
+
+ {
+ local $BugId = '7471';
+ local $Message = 'Neither ()* nor ()*? sets $1 when matched 0 times';
+ local $_ = 'CD';
+ ok /(AB)*?CD/ && !defined $1;
+ ok /(AB)*CD/ && !defined $1;
+ }
+
+
+ {
+ local $BugId = '3547';
+ local $Message = "Caching shouldn't prevent match";
+ my $pattern = "^(b+?|a){1,2}c";
+ ok "bac" =~ /$pattern/ && $1 eq 'a';
+ ok "bbac" =~ /$pattern/ && $1 eq 'a';
+ ok "bbbac" =~ /$pattern/ && $1 eq 'a';
+ ok "bbbbac" =~ /$pattern/ && $1 eq 'a';
+ }
+
+
+
+ {
+ local $BugId = '18232';
+ local $Message = '$1 should keep UTF-8 ness';
+ ok "\x{100}" =~ /(.)/;
+ iseq $1, "\x{100}", '$1 is UTF-8';
+ { 'a' =~ /./; }
+ iseq $1, "\x{100}", '$1 is still UTF-8';
+ isneq $1, "\xC4\x80", '$1 is not non-UTF-8';
+ }
+
+
+ {
+ local $BugId = '19767';
+ local $Message = "Optimizer doesn't prematurely reject match";
+ use utf8;
+
+ my $attr = 'Name-1';
+ my $NormalChar = qr /[\p{IsDigit}\p{IsLower}\p{IsUpper}]/;
+ my $NormalWord = qr /${NormalChar}+?/;
+ my $PredNameHyphen = qr /^${NormalWord}(\-${NormalWord})*?$/;
+
+ $attr =~ /^$/;
+ ok $attr =~ $PredNameHyphen; # Original test.
+
+ "a" =~ m/[b]/;
+ ok "0" =~ /\p{N}+\z/; # Variant.
+ }
+
+
+ {
+ local $BugId = '20683';
+ local $Message = "(??{ }) doesn't return stale values";
+ our $p = 1;
+ foreach (1, 2, 3, 4) {
+ $p ++ if /(??{ $p })/
+ }
+ iseq $p, 5;
+
+ {
+ package P;
+ $a = 1;
+ sub TIESCALAR {bless []}
+ sub FETCH {$a ++}
+ }
+ tie $p, "P";
+ foreach (1, 2, 3, 4) {
+ /(??{ $p })/
+ }
+ iseq $p, 5;
+ }
+
+
+ {
+ # Subject: Odd regexp behavior
+ # From: Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>
+ # Date: Wed, 26 Feb 2003 16:53:12 +0000
+ # Message-Id: <E18o4nw-0008Ly-00@wisbech.cl.cam.ac.uk>
+ # To: perl-unicode@perl.org
+
+ local $Message = 'Markus Kuhn 2003-02-26';
+
+ my $x = "\x{2019}\nk";
+ ok $x =~ s/(\S)\n(\S)/$1 $2/sg;
+ ok $x eq "\x{2019} k";
+
+ $x = "b\nk";
+ ok $x =~ s/(\S)\n(\S)/$1 $2/sg;
+ ok $x eq "b k";
+
+ ok "\x{2019}" =~ /\S/;
+ }
+
+
+ {
+ local $BugId = '21411';
+ local $Message = "(??{ .. }) in split doesn't corrupt its stack";
+ our $i;
+ ok '-1-3-5-' eq join '', split /((??{$i++}))/, '-1-3-5-';
+ no warnings 'syntax';
+ @_ = split /(?{'WOW'})/, 'abc';
+ local $" = "|";
+ iseq "@_", "a|b|c";
+ }
+
+
+ {
+ # XXX DAPM 13-Apr-06. Recursive split is still broken. It's only luck it
+ # hasn't been crashing. Disable this test until it is fixed properly.
+ # XXX also check what it returns rather than just doing ok(1,...)
+ # split /(?{ split "" })/, "abc";
+ local $TODO = "Recursive split is still broken";
+ ok 0, 'cache_re & "(?{": it dumps core in 5.6.1 & 5.8.0';
+ }
+
+
+ {
+ ok "\x{100}\n" =~ /\x{100}\n$/, "UTF-8 length cache and fbm_compile";
+ }
+
+
+ {
+ package Str;
+ use overload q /""/ => sub {${$_ [0]};};
+ sub new {my ($c, $v) = @_; bless \$v, $c;}
+
+ package main;
+ $_ = Str -> new ("a\x{100}/\x{100}b");
+ ok join (":", /\b(.)\x{100}/g) eq "a:/", "re_intuit_start and PL_bostr";
+ }
+
+
+ {
+ local $BugId = '17757';
+ $_ = "code: 'x' { '...' }\n"; study;
+ my @x; push @x, $& while m/'[^\']*'/gx;
+ local $" = ":";
+ iseq "@x", "'x':'...'", "Parse::RecDescent triggered infinite loop";
+ }
+
+
+ {
+ my $re = qq /^([^X]*)X/;
+ utf8::upgrade ($re);
+ ok "\x{100}X" =~ /$re/, "S_cl_and ANYOF_UNICODE & ANYOF_INVERTED";
+ }
+
+
+ {
+ local $BugId = '22354';
+ sub func ($) {
+ ok "a\nb" !~ /^b/, "Propagated modifier; $_[0]";
+ ok "a\nb" =~ /^b/m, "Propagated modifier; $_[0] - with /m";
+ }
+ func "standalone";
+ $_ = "x"; s/x/func "in subst"/e;
+ $_ = "x"; s/x/func "in multiline subst"/em;
+
+ #
+ # Next two give 'panic: malloc'.
+ # Outcommented, using two TODOs.
+ #
+ local $TODO = 'panic: malloc';
+ local $Message = 'Postponed regexp and propaged modifier';
+ # ok 0 for 1 .. 2;
+ SKIP: {
+ skip "panic: malloc", 2;
+ $_ = "x"; /x(?{func "in regexp"})/;
+ $_ = "x"; /x(?{func "in multiline regexp"})/m;
+ }
+ }
+
+
+ {
+ local $BugId = '19049';
+ $_ = "abcdef\n";
+ my @x = m/./g;
+ iseq "abcde", $`, 'Global match sets $`';
+ }
+
+
+ {
+ ok "123\x{100}" =~ /^.*1.*23\x{100}$/,
+ 'UTF-8 + multiple floating substr';
+ }
+
+
+ {
+ local $Message = '<20030808193656.5109.1@llama.ni-s.u-net.com>';
+
+ # LATIN SMALL/CAPITAL LETTER A WITH MACRON
+ ok " \x{101}" =~ qr/\x{100}/i;
+
+ # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW
+ ok " \x{1E01}" =~ qr/\x{1E00}/i;
+
+ # DESERET SMALL/CAPITAL LETTER LONG I
+ ok " \x{10428}" =~ qr/\x{10400}/i;
+
+ # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'
+ ok " \x{1E01}x" =~ qr/\x{1E00}X/i;
+ }
+
+
+ {
+ # [perl #23769] Unicode regex broken on simple example
+ # regrepeat() didn't handle UTF-8 EXACT case right.
+ local $BugId = '23769';
+ my $Mess = 'regrepeat() handles UTF-8 EXACT case right';
+ local $Message = $Mess;
+
+ my $s = "\x{a0}\x{a0}\x{a0}\x{100}"; chop $s;
+
+ ok $s =~ /\x{a0}/;
+ ok $s =~ /\x{a0}+/;
+ ok $s =~ /\x{a0}\x{a0}/;
+
+ $Message = "$Mess (easy variant)";
+ ok "aaa\x{100}" =~ /(a+)/;
+ iseq $1, "aaa";
+
+ $Message = "$Mess (easy invariant)";
+ ok "aaa\x{100} " =~ /(a+?)/;
+ iseq $1, "a";
+
+ $Message = "$Mess (regrepeat variant)";
+ ok "\xa0\xa0\xa0\x{100} " =~ /(\xa0+?)/;
+ iseq $1, "\xa0";
+
+ $Message = "$Mess (regrepeat invariant)";
+ ok "\xa0\xa0\xa0\x{100}" =~ /(\xa0+)/;
+ iseq $1, "\xa0\xa0\xa0";
+
+ $Message = "$Mess (hard variant)";
+ ok "\xa0\xa1\xa0\xa1\xa0\xa1\x{100}" =~ /((?:\xa0\xa1)+?)/;
+ iseq $1, "\xa0\xa1";
+
+ $Message = "$Mess (hard invariant)";
+ ok "ababab\x{100} " =~ /((?:ab)+)/;
+ iseq $1, 'ababab';
+
+ ok "\xa0\xa1\xa0\xa1\xa0\xa1\x{100}" =~ /((?:\xa0\xa1)+)/;
+ iseq $1, "\xa0\xa1\xa0\xa1\xa0\xa1";
+
+ ok "ababab\x{100} " =~ /((?:ab)+?)/;
+ iseq $1, "ab";
+
+ $Message = "Don't match first byte of UTF-8 representation";
+ ok "\xc4\xc4\xc4" !~ /(\x{100}+)/;
+ ok "\xc4\xc4\xc4" !~ /(\x{100}+?)/;
+ ok "\xc4\xc4\xc4" !~ /(\x{100}++)/;
+ }
+
+
+ {
+ for (120 .. 130) {
+ my $head = 'x' x $_;
+ local $Message = q [Don't misparse \x{...} in regexp ] .
+ q [near 127 char EXACT limit];
+ for my $tail ('\x{0061}', '\x{1234}', '\x61') {
+ eval_ok qq ["$head$tail" =~ /$head$tail/];
+ }
+ local $Message = q [Don't misparse \N{...} in regexp ] .
+ q [near 127 char EXACT limit];
+ for my $tail ('\N{SNOWFLAKE}') {
+ eval_ok qq [use charnames ':full';
+ "$head$tail" =~ /$head$tail/];
+ }
+ }
+ }
+
+
+ {
+ # perl panic: pp_match start/end pointers
+ local $BugId = '25269';
+ iseq "a-bc", eval {my ($x, $y) = "bca" =~ /^(?=.*(a)).*(bc)/; "$x-$y"},
+ 'Captures can move backwards in string';
+ }
+
+
+ {
+ local $BugId = '27940'; # \cA not recognized in character classes
+ ok "a\cAb" =~ /\cA/, '\cA in pattern';
+ ok "a\cAb" =~ /[\cA]/, '\cA in character class';
+ ok "a\cAb" =~ /[\cA-\cB]/, '\cA in character class range';
+ ok "abc" =~ /[^\cA-\cB]/, '\cA in negated character class range';
+ ok "a\cBb" =~ /[\cA-\cC]/, '\cB in character class range';
+ ok "a\cCbc" =~ /[^\cA-\cB]/, '\cC in negated character class range';
+ ok "a\cAb" =~ /(??{"\cA"})/, '\cA in ??{} pattern';
+ ok "ab" !~ /a\cIb/x, '\cI in pattern';
+ }
+
+
+ {
+ # perl #28532: optional zero-width match at end of string is ignored
+ local $BugId = '28532';
+ ok "abc" =~ /^abc(\z)?/ && defined($1),
+ 'Optional zero-width match at end of string';
+ ok "abc" =~ /^abc(\z)??/ && !defined($1),
+ 'Optional zero-width match at end of string';
+ }
+
+
+
+ { # TRIE related
+ our @got = ();
+ "words" =~ /(word|word|word)(?{push @got, $1})s$/;
+ iseq @got, 1, "TRIE optimation";
+
+ @got = ();
+ "words" =~ /(word|word|word)(?{push @got,$1})s$/i;
+ iseq @got, 1,"TRIEF optimisation";
+
+ my @nums = map {int rand 1000} 1 .. 100;
+ my $re = "(" . (join "|", @nums) . ")";
+ $re = qr/\b$re\b/;
+
+ foreach (@nums) {
+ ok $_ =~ /$re/, "Trie nums";
+ }
+
+ $_ = join " ", @nums;
+ @got = ();
+ push @got, $1 while /$re/g;
+
+ my %count;
+ $count {$_} ++ for @got;
+ my $ok = 1;
+ for (@nums) {
+ $ok = 0 if --$count {$_} < 0;
+ }
+ ok $ok, "Trie min count matches";
+ }
+
+
+ {
+ # TRIE related
+ # LATIN SMALL/CAPITAL LETTER A WITH MACRON
+ ok "foba \x{101}foo" =~ qr/(foo|\x{100}foo|bar)/i &&
+ $1 eq "\x{101}foo",
+ "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH MACRON";
+
+ # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW
+ ok "foba \x{1E01}foo" =~ qr/(foo|\x{1E00}foo|bar)/i &&
+ $1 eq "\x{1E01}foo",
+ "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH RING BELOW";
+
+ # DESERET SMALL/CAPITAL LETTER LONG I
+ ok "foba \x{10428}foo" =~ qr/(foo|\x{10400}foo|bar)/i &&
+ $1 eq "\x{10428}foo",
+ "TRIEF + DESERET SMALL/CAPITAL LETTER LONG I";
+
+ # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'
+ ok "foba \x{1E01}xfoo" =~ qr/(foo|\x{1E00}Xfoo|bar)/i &&
+ $1 eq "\x{1E01}xfoo",
+ "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'";
+
+ use charnames ':full';
+
+ my $s = "\N{LATIN SMALL LETTER SHARP S}";
+ ok "foba ba$s" =~ qr/(foo|Ba$s|bar)/i && $1 eq "ba$s",
+ "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
+ ok "foba ba$s" =~ qr/(Ba$s|foo|bar)/i && $1 eq "ba$s",
+ "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
+ ok "foba ba$s" =~ qr/(foo|bar|Ba$s)/i && $1 eq "ba$s",
+ "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
+
+ ok "foba ba$s" =~ qr/(foo|Bass|bar)/i && $1 eq "ba$s",
+ "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
+
+ ok "foba ba$s" =~ qr/(foo|BaSS|bar)/i && $1 eq "ba$s",
+ "TRIEF + LATIN SMALL LETTER SHARP S =~ SS";
+
+ ok "foba ba${s}pxySS$s$s" =~ qr/(b(?:a${s}t|a${s}f|a${s}p)[xy]+$s*)/i
+ && $1 eq "ba${s}pxySS$s$s",
+ "COMMON PREFIX TRIEF + LATIN SMALL LETTER SHARP S";
+ }
+
+
+ SKIP:
+ {
+ print "# Set PERL_SKIP_PSYCHO_TEST to skip this test\n";
+ my @normal = qw [the are some normal words];
+
+ skip "Skipped Psycho", 2 * @normal if $ENV {PERL_SKIP_PSYCHO_TEST};
+
+ local $" = "|";
+
+ my @psycho = (@normal, map chr $_, 255 .. 20000);
+ my $psycho1 = "@psycho";
+ for (my $i = @psycho; -- $i;) {
+ my $j = int rand (1 + $i);
+ @psycho [$i, $j] = @psycho [$j, $i];
+ }
+ my $psycho2 = "@psycho";
+
+ foreach my $word (@normal) {
+ ok $word =~ /($psycho1)/ && $1 eq $word, 'Psycho';
+ ok $word =~ /($psycho2)/ && $1 eq $word, 'Psycho';
+ }
+ }
+
+
+ {
+ local $BugId = '36207';
+ my $utf8 = "\xe9\x{100}"; chop $utf8;
+ my $latin1 = "\xe9";
+
+ ok $utf8 =~ /\xe9/i, "utf8/latin";
+ ok $utf8 =~ /$latin1/i, "utf8/latin runtime";
+ ok $utf8 =~ /(abc|\xe9)/i, "utf8/latin trie";
+ ok $utf8 =~ /(abc|$latin1)/i, "utf8/latin trie runtime";
+
+ ok "\xe9" =~ /$utf8/i, "latin/utf8";
+ ok "\xe9" =~ /(abc|$utf8)/i, "latin/utf8 trie";
+ ok $latin1 =~ /$utf8/i, "latin/utf8 runtime";
+ ok $latin1 =~ /(abc|$utf8)/i, "latin/utf8 trie runtime";
+ }
+
+
+ {
+ local $BugId = '37038';
+ my $s = "abcd";
+ $s =~ /(..)(..)/g;
+ $s = $1;
+ $s = $2;
+ iseq $2, 'cd',
+ "Assigning to original string does not corrupt match vars";
+ }
+
+
+ {
+ {
+ package wooosh;
+ sub gloople {"!"}
+ }
+ my $aeek = bless {} => 'wooosh';
+ eval_ok sub {$aeek -> gloople () =~ /(.)/g},
+ "//g match against return value of sub";
+
+ sub gloople {"!"}
+ eval_ok sub {gloople () =~ /(.)/g},
+ "26410 didn't affect sub calls for some reason";
+ }
+
+
+ {
+ local $TODO = "See changes 26925-26928, which reverted change 26410";
+ {
+ package lv;
+ our $var = "abc";
+ sub variable : lvalue {$var}
+ }
+ my $o = bless [] => 'lv';
+ my $f = "";
+ my $r = eval {
+ for (1 .. 2) {
+ $f .= $1 if $o -> variable =~ /(.)/g;
+ }
+ 1;
+ };
+ if ($r) {
+ iseq $f, "ab", "pos() retained between calls";
+ }
+ else {
+ local $TODO;
+ ok 0, "Code failed: $@";
+ }
+
+ our $var = "abc";
+ sub variable : lvalue {$var}
+ my $g = "";
+ my $s = eval {
+ for (1 .. 2) {
+ $g .= $1 if variable =~ /(.)/g;
+ }
+ 1;
+ };
+ if ($s) {
+ iseq $g, "ab", "pos() retained between calls";
+ }
+ else {
+ local $TODO;
+ ok 0, "Code failed: $@";
+ }
+ }
+
+
+ SKIP:
+ {
+ local $BugId = '37836';
+ skip "In EBCDIC" if $IS_EBCDIC;
+ no warnings 'utf8';
+ $_ = pack 'U0C2', 0xa2, 0xf8; # Ill-formed UTF-8
+ my $ret = 0;
+ eval_ok sub {!($ret = s/[\0]+//g)},
+ "Ill-formed UTF-8 doesn't match NUL in class";
+ }
+
+
+ {
+ # chr(65535) should be allowed in regexes
+ local $BugId = '38293';
+ no warnings 'utf8'; # To allow non-characters
+ my ($c, $r, $s);
+
+ $c = chr 0xffff;
+ $c =~ s/$c//g;
+ ok $c eq "", "U+FFFF, parsed as atom";
+
+ $c = chr 0xffff;
+ $r = "\\$c";
+ $c =~ s/$r//g;
+ ok $c eq "", "U+FFFF backslashed, parsed as atom";
+
+ $c = chr 0xffff;
+ $c =~ s/[$c]//g;
+ ok $c eq "", "U+FFFF, parsed in class";
+
+ $c = chr 0xffff;
+ $r = "[\\$c]";
+ $c =~ s/$r//g;
+ ok $c eq "", "U+FFFF backslashed, parsed in class";
+
+ $s = "A\x{ffff}B";
+ $s =~ s/\x{ffff}//i;
+ ok $s eq "AB", "U+FFFF, EXACTF";
+
+ $s = "\x{ffff}A";
+ $s =~ s/\bA//;
+ ok $s eq "\x{ffff}", "U+FFFF, BOUND";
+
+ $s = "\x{ffff}!";
+ $s =~ s/\B!//;
+ ok $s eq "\x{ffff}", "U+FFFF, NBOUND";
+ }
+
+
+ {
+ local $BugId = '39583';
+
+ # The printing characters
+ my @chars = ("A" .. "Z");
+ my $delim = ",";
+ my $size = 32771 - 4;
+ my $str = '';
+
+ # Create some random junk. Inefficient, but it works.
+ for (my $i = 0; $i < $size; $ i++) {
+ $str .= $chars [rand @chars];
+ }
+
+ $str .= ($delim x 4);
+ my $res;
+ my $matched;
+ ok $str =~ s/^(.*?)${delim}{4}//s, "Pattern matches";
+ iseq $str, "", "Empty string";
+ ok defined $1 && length ($1) == $size, '$1 is correct size';
+ }
+
+
+ {
+ local $BugId = '27940';
+ ok "\0-A" =~ /\c@-A/, '@- should not be interpolated in a pattern';
+ ok "\0\0A" =~ /\c@+A/, '@+ should not be interpolated in a pattern';
+ ok "X\@-A" =~ /X@-A/, '@- should not be interpolated in a pattern';
+ ok "X\@\@A" =~ /X@+A/, '@+ should not be interpolated in a pattern';
+
+ ok "X\0A" =~ /X\c@?A/, '\c@?';
+ ok "X\0A" =~ /X\c@*A/, '\c@*';
+ ok "X\0A" =~ /X\c@(A)/, '\c@(';
+ ok "X\0A" =~ /X(\c@)A/, '\c@)';
+ ok "X\0A" =~ /X\c@|ZA/, '\c@|';
+
+ ok "X\@A" =~ /X@?A/, '@?';
+ ok "X\@A" =~ /X@*A/, '@*';
+ ok "X\@A" =~ /X@(A)/, '@(';
+ ok "X\@A" =~ /X(@)A/, '@)';
+ ok "X\@A" =~ /X@|ZA/, '@|';
+
+ local $" = ','; # non-whitespace and non-RE-specific
+ ok 'abc' =~ /(.)(.)(.)/, 'The last successful match is bogus';
+ ok "A@+B" =~ /A@{+}B/, 'Interpolation of @+ in /@{+}/';
+ ok "A@-B" =~ /A@{-}B/, 'Interpolation of @- in /@{-}/';
+ ok "A@+B" =~ /A@{+}B/x, 'Interpolation of @+ in /@{+}/x';
+ ok "A@-B" =~ /A@{-}B/x, 'Interpolation of @- in /@{-}/x';
+ }
+
+
+ {
+ BEGIN {
+ unshift @INC, 'lib';
+ }
+ use Cname;
+
+ ok 'fooB' =~ /\N{foo}[\N{B}\N{b}]/, "Passthrough charname";
+ my $test = 1233;
+ #
+ # Why doesn't must_warn work here?
+ #
+ my $w;
+ local $SIG {__WARN__} = sub {$w .= "@_"};
+ eval 'q(xxWxx) =~ /[\N{WARN}]/';
+ ok $w && $w =~ /^Ignoring excess chars from/,
+ "Ignoring excess chars warning";
+
+ undef $w;
+ eval q [ok "\0" !~ /[\N{EMPTY-STR}XY]/,
+ "Zerolength charname in charclass doesn't match \\0"];
+ ok $w && $w =~ /^Ignoring zero length/,
+ 'Ignoring zero length \N{%} in character class warning';
+
+ ok 'AB' =~ /(\N{EVIL})/ && $1 eq 'A', 'Charname caching $1';
+ ok 'ABC' =~ /(\N{EVIL})/, 'Charname caching $1';
+ ok 'xy' =~ /x\N{EMPTY-STR}y/,
+ 'Empty string charname produces NOTHING node';
+ ok '' =~ /\N{EMPTY-STR}/,
+ 'Empty string charname produces NOTHING node';
+
+ }
+
+
+ {
+ use charnames ':full';
+
+ ok 'aabc' !~ /a\N{PLUS SIGN}b/, '/a\N{PLUS SIGN}b/ against aabc';
+ ok 'a+bc' =~ /a\N{PLUS SIGN}b/, '/a\N{PLUS SIGN}b/ against a+bc';
+
+ ok ' A B' =~ /\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}/,
+ 'Intermixed named and unicode escapes';
+ ok "\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}" =~
+ /\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}/,
+ 'Intermixed named and unicode escapes';
+ ok "\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}" =~
+ /[\N{SPACE}\N{U+0041}][\N{SPACE}\N{U+0042}]/,
+ 'Intermixed named and unicode escapes';
+ }
+
+
+ {
+ our $brackets;
+ $brackets = qr{
+ { (?> [^{}]+ | (??{ $brackets }) )* }
+ }x;
+
+ ok "{b{c}d" !~ m/^((??{ $brackets }))/, "Bracket mismatch";
+
+ SKIP: {
+ our @stack = ();
+ my @expect = qw(
+ stuff1
+ stuff2
+ <stuff1>and<stuff2>
+ right
+ <right>
+ <<right>>
+ <<<right>>>
+ <<stuff1>and<stuff2>><<<<right>>>>
+ );
+
+ local $_ = '<<<stuff1>and<stuff2>><<<<right>>>>>';
+ ok /^(<((?:(?>[^<>]+)|(?1))*)>(?{push @stack, $2 }))$/,
+ "Recursion matches";
+ iseq @stack, @expect, "Right amount of matches"
+ or skip "Won't test individual results as count isn't equal",
+ 0 + @expect;
+ my $idx = 0;
+ foreach my $expect (@expect) {
+ iseq $stack [$idx], $expect,
+ "Expecting '$expect' at stack pos #$idx";
+ $idx ++;
+ }
+ }
+ }
+
+
+ {
+ my $s = '123453456';
+ $s =~ s/(?<digits>\d+)\k<digits>/$+{digits}/;
+ ok $s eq '123456', 'Named capture (angle brackets) s///';
+ $s = '123453456';
+ $s =~ s/(?'digits'\d+)\k'digits'/$+{digits}/;
+ ok $s eq '123456', 'Named capture (single quotes) s///';
+ }
+
+
+ {
+ my @ary = (
+ pack('U', 0x00F1), # n-tilde
+ '_'.pack('U', 0x00F1), # _ + n-tilde
+ 'c'.pack('U', 0x0327), # c + cedilla
+ pack('U*', 0x00F1, 0x0327), # n-tilde + cedilla
+ 'a'.pack('U', 0x00B2), # a + superscript two
+ pack('U', 0x0391), # ALPHA
+ pack('U', 0x0391).'2', # ALPHA + 2
+ pack('U', 0x0391).'_', # ALPHA + _
+ );
+
+ for my $uni (@ary) {
+ my ($r1, $c1, $r2, $c2) = eval qq {
+ use utf8;
+ scalar ("..foo foo.." =~ /(?'${uni}'foo) \\k'${uni}'/),
+ \$+{${uni}},
+ scalar ("..bar bar.." =~ /(?<${uni}>bar) \\k<${uni}>/),
+ \$+{${uni}};
+ };
+ ok $r1, "Named capture UTF (?'')";
+ ok defined $c1 && $c1 eq 'foo', "Named capture UTF \%+";
+ ok $r2, "Named capture UTF (?<>)";
+ ok defined $c2 && $c2 eq 'bar', "Named capture UTF \%+";
+ }
+ }
+
+
+ {
+ my $s = 'foo bar baz';
+ my (@k, @v, @fetch, $res);
+ my $count = 0;
+ my @names = qw ($+{A} $+{B} $+{C});
+ if ($s =~ /(?<A>foo)\s+(?<B>bar)?\s+(?<C>baz)/) {
+ while (my ($k, $v) = each (%+)) {
+ $count++;
+ }
+ @k = sort keys (%+);
+ @v = sort values (%+);
+ $res = 1;
+ push @fetch,
+ ["$+{A}", "$1"],
+ ["$+{B}", "$2"],
+ ["$+{C}", "$3"],
+ ;
+ }
+ foreach (0 .. 2) {
+ if ($fetch [$_]) {
+ iseq $fetch [$_] [0], $fetch [$_] [1], $names [$_];
+ } else {
+ ok 0, $names[$_];
+ }
+ }
+ iseq $res, 1, "'$s' =~ /(?<A>foo)\\s+(?<B>bar)?\\s+(?<C>baz)/";
+ iseq $count, 3, "Got 3 keys in %+ via each";
+ iseq 0 + @k, 3, 'Got 3 keys in %+ via keys';
+ iseq "@k", "A B C", "Got expected keys";
+ iseq "@v", "bar baz foo", "Got expected values";
+ eval '
+ no warnings "uninitialized";
+ print for $+ {this_key_doesnt_exist};
+ ';
+ ok !$@, 'lvalue $+ {...} should not throw an exception';
+ }
+
+
+ {
+ #
+ # Almost the same as the block above, except that the capture is nested.
+ #
+ local $BugId = '50496';
+ my $s = 'foo bar baz';
+ my (@k, @v, @fetch, $res);
+ my $count = 0;
+ my @names = qw ($+{A} $+{B} $+{C} $+{D});
+ if ($s =~ /(?<D>(?<A>foo)\s+(?<B>bar)?\s+(?<C>baz))/) {
+ while (my ($k,$v) = each(%+)) {
+ $count++;
+ }
+ @k = sort keys (%+);
+ @v = sort values (%+);
+ $res = 1;
+ push @fetch,
+ ["$+{A}", "$2"],
+ ["$+{B}", "$3"],
+ ["$+{C}", "$4"],
+ ["$+{D}", "$1"],
+ ;
+ }
+ foreach (0 .. 3) {
+ if ($fetch [$_]) {
+ iseq $fetch [$_] [0], $fetch [$_] [1], $names [$_];
+ } else {
+ ok 0, $names [$_];
+ }
+ }
+ iseq $res, 1, "'$s' =~ /(?<D>(?<A>foo)\\s+(?<B>bar)?\\s+(?<C>baz))/";
+ iseq $count, 4, "Got 4 keys in %+ via each";
+ iseq @k, 4, 'Got 4 keys in %+ via keys';
+ iseq "@k", "A B C D", "Got expected keys";
+ iseq "@v", "bar baz foo foo bar baz", "Got expected values";
+ eval '
+ no warnings "uninitialized";
+ print for $+ {this_key_doesnt_exist};
+ ';
+ ok !$@,'lvalue $+ {...} should not throw an exception';
+ }
+
+
+ {
+ my $s = 'foo bar baz';
+ my @res;
+ if ('1234' =~ /(?<A>1)(?<B>2)(?<A>3)(?<B>4)/) {
+ foreach my $name (sort keys(%-)) {
+ my $ary = $- {$name};
+ foreach my $idx (0 .. $#$ary) {
+ push @res, "$name:$idx:$ary->[$idx]";
+ }
+ }
+ }
+ my @expect = qw (A:0:1 A:1:3 B:0:2 B:1:4);
+ iseq "@res", "@expect", "Check %-";
+ eval'
+ no warnings "uninitialized";
+ print for $- {this_key_doesnt_exist};
+ ';
+ ok !$@,'lvalue $- {...} should not throw an exception';
+ }
+
+
+ SKIP:
+ {
+ # stress test CURLYX/WHILEM.
+ #
+ # This test includes varying levels of nesting, and according to
+ # profiling done against build 28905, exercises every code line in the
+ # CURLYX and WHILEM blocks, except those related to LONGJMP, the
+ # super-linear cache and warnings. It executes about 0.5M regexes
+
+ skip "No psycho tests" if $ENV {PERL_SKIP_PSYCHO_TEST};
+ print "# Set PERL_SKIP_PSYCHO_TEST to skip this test\n";
+ my $r = qr/^
+ (?:
+ ( (?:a|z+)+ )
+ (?:
+ ( (?:b|z+){3,}? )
+ (
+ (?:
+ (?:
+ (?:c|z+){1,1}?z
+ )?
+ (?:c|z+){1,1}
+ )*
+ )
+ (?:z*){2,}
+ ( (?:z+|d)+ )
+ (?:
+ ( (?:e|z+)+ )
+ )*
+ ( (?:f|z+)+ )
+ )*
+ ( (?:z+|g)+ )
+ (?:
+ ( (?:h|z+)+ )
+ )*
+ ( (?:i|z+)+ )
+ )+
+ ( (?:j|z+)+ )
+ (?:
+ ( (?:k|z+)+ )
+ )*
+ ( (?:l|z+)+ )
+ $/x;
+
+ my $ok = 1;
+ my $msg = "CURLYX stress test";
+ OUTER:
+ for my $a ("x","a","aa") {
+ for my $b ("x","bbb","bbbb") {
+ my $bs = $a.$b;
+ for my $c ("x","c","cc") {
+ my $cs = $bs.$c;
+ for my $d ("x","d","dd") {
+ my $ds = $cs.$d;
+ for my $e ("x","e","ee") {
+ my $es = $ds.$e;
+ for my $f ("x","f","ff") {
+ my $fs = $es.$f;
+ for my $g ("x","g","gg") {
+ my $gs = $fs.$g;
+ for my $h ("x","h","hh") {
+ my $hs = $gs.$h;
+ for my $i ("x","i","ii") {
+ my $is = $hs.$i;
+ for my $j ("x","j","jj") {
+ my $js = $is.$j;
+ for my $k ("x","k","kk") {
+ my $ks = $js.$k;
+ for my $l ("x","l","ll") {
+ my $ls = $ks.$l;
+ if ($ls =~ $r) {
+ if ($ls =~ /x/) {
+ $msg .= ": unexpected match for [$ls]";
+ $ok = 0;
+ last OUTER;
+ }
+ my $cap = "$1$2$3$4$5$6$7$8$9$10$11$12";
+ unless ($ls eq $cap) {
+ $msg .= ": capture: [$ls], got [$cap]";
+ $ok = 0;
+ last OUTER;
+ }
+ }
+ else {
+ unless ($ls =~ /x/) {
+ $msg = ": failed for [$ls]";
+ $ok = 0;
+ last OUTER;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ ok($ok, $msg);
+ }
+
+
+ {
+ # \, breaks {3,4}
+ ok "xaaay" !~ /xa{3\,4}y/, '\, in a pattern';
+ ok "xa{3,4}y" =~ /xa{3\,4}y/, '\, in a pattern';
+
+ # \c\ followed by _
+ ok "x\c_y" !~ /x\c\_y/, '\_ in a pattern';
+ ok "x\c\_y" =~ /x\c\_y/, '\_ in a pattern';
+
+ # \c\ followed by other characters
+ for my $c ("z", "\0", "!", chr(254), chr(256)) {
+ my $targ = "a\034$c";
+ my $reg = "a\\c\\$c";
+ ok eval ("qq/$targ/ =~ /$reg/"), "\\c\\ in pattern";
+ }
+ }
+
+
+ {
+ local $BugId = '36046';
+ my $str = 'abc';
+ my $count = 0;
+ my $mval = 0;
+ my $pval = 0;
+ while ($str =~ /b/g) {$mval = $#-; $pval = $#+; $count ++}
+ iseq $mval, 0, '@- should be empty';
+ iseq $pval, 0, '@+ should be empty';
+ iseq $count, 1, 'Should have matched once only';
+ }
+
+
+ { # Test the (*PRUNE) pattern
+ our $count = 0;
+ 'aaab' =~ /a+b?(?{$count++})(*FAIL)/;
+ iseq $count, 9, "Expect 9 for no (*PRUNE)";
+ $count = 0;
+ 'aaab' =~ /a+b?(*PRUNE)(?{$count++})(*FAIL)/;
+ iseq $count, 3, "Expect 3 with (*PRUNE)";
+ local $_ = 'aaab';
+ $count = 0;
+ 1 while /.(*PRUNE)(?{$count++})(*FAIL)/g;
+ iseq $count, 4, "/.(*PRUNE)/";
+ $count = 0;
+ 'aaab' =~ /a+b?(??{'(*PRUNE)'})(?{$count++})(*FAIL)/;
+ iseq $count, 3, "Expect 3 with (*PRUNE)";
+ local $_ = 'aaab';
+ $count = 0;
+ 1 while /.(??{'(*PRUNE)'})(?{$count++})(*FAIL)/g;
+ iseq $count, 4, "/.(*PRUNE)/";
+ }
+
+
+ { # Test the (*SKIP) pattern
+ our $count = 0;
+ 'aaab' =~ /a+b?(*SKIP)(?{$count++})(*FAIL)/;
+ iseq $count, 1, "Expect 1 with (*SKIP)";
+ local $_ = 'aaab';
+ $count = 0;
+ 1 while /.(*SKIP)(?{$count++})(*FAIL)/g;
+ iseq $count, 4, "/.(*SKIP)/";
+ $_ = 'aaabaaab';
+ $count = 0;
+ our @res = ();
+ 1 while /(a+b?)(*SKIP)(?{$count++; push @res,$1})(*FAIL)/g;
+ iseq $count, 2, "Expect 2 with (*SKIP)";
+ iseq "@res", "aaab aaab", "Adjacent (*SKIP) works as expected";
+ }
+
+
+ { # Test the (*SKIP) pattern
+ our $count = 0;
+ 'aaab' =~ /a+b?(*MARK:foo)(*SKIP)(?{$count++})(*FAIL)/;
+ iseq $count, 1, "Expect 1 with (*SKIP)";
+ local $_ = 'aaab';
+ $count = 0;
+ 1 while /.(*MARK:foo)(*SKIP)(?{$count++})(*FAIL)/g;
+ iseq $count, 4, "/.(*SKIP)/";
+ $_ = 'aaabaaab';
+ $count = 0;
+ our @res = ();
+ 1 while /(a+b?)(*MARK:foo)(*SKIP)(?{$count++; push @res,$1})(*FAIL)/g;
+ iseq $count, 2, "Expect 2 with (*SKIP)";
+ iseq "@res", "aaab aaab", "Adjacent (*SKIP) works as expected";
+ }
+
+
+ { # Test the (*SKIP) pattern
+ our $count = 0;
+ 'aaab' =~ /a*(*MARK:a)b?(*MARK:b)(*SKIP:a)(?{$count++})(*FAIL)/;
+ iseq $count, 3, "Expect 3 with *MARK:a)b?(*MARK:b)(*SKIP:a)";
+ local $_ = 'aaabaaab';
+ $count = 0;
+ our @res = ();
+ 1 while
+ /(a*(*MARK:a)b?)(*MARK:x)(*SKIP:a)(?{$count++; push @res,$1})(*FAIL)/g;
+ iseq $count, 5, "Expect 5 with (*MARK:a)b?)(*MARK:x)(*SKIP:a)";
+ iseq "@res", "aaab b aaab b ",
+ "Adjacent (*MARK:a)b?)(*MARK:x)(*SKIP:a) works as expected";
+ }
+
+
+ { # Test the (*COMMIT) pattern
+ our $count = 0;
+ 'aaabaaab' =~ /a+b?(*COMMIT)(?{$count++})(*FAIL)/;
+ iseq $count, 1, "Expect 1 with (*COMMIT)";
+ local $_ = 'aaab';
+ $count = 0;
+ 1 while /.(*COMMIT)(?{$count++})(*FAIL)/g;
+ iseq $count, 1, "/.(*COMMIT)/";
+ $_ = 'aaabaaab';
+ $count = 0;
+ our @res = ();
+ 1 while /(a+b?)(*COMMIT)(?{$count++; push @res,$1})(*FAIL)/g;
+ iseq $count, 1, "Expect 1 with (*COMMIT)";
+ iseq "@res", "aaab", "Adjacent (*COMMIT) works as expected";
+ }
+
+
+ {
+ # Test named commits and the $REGERROR var
+ our $REGERROR;
+ for my $name ('', ':foo') {
+ for my $pat ("(*PRUNE$name)",
+ ($name ? "(*MARK$name)" : "") . "(*SKIP$name)",
+ "(*COMMIT$name)") {
+ for my $suffix ('(*FAIL)', '') {
+ 'aaaab' =~ /a+b$pat$suffix/;
+ iseq $REGERROR,
+ ($suffix ? ($name ? 'foo' : "1") : ""),
+ "Test $pat and \$REGERROR $suffix";
+ }
+ }
+ }
+ }
+
+
+ {
+ # Test named commits and the $REGERROR var
+ package Fnorble;
+ our $REGERROR;
+ for my $name ('', ':foo') {
+ for my $pat ("(*PRUNE$name)",
+ ($name ? "(*MARK$name)" : "") . "(*SKIP$name)",
+ "(*COMMIT$name)") {
+ for my $suffix ('(*FAIL)','') {
+ 'aaaab' =~ /a+b$pat$suffix/;
+ ::iseq $REGERROR,
+ ($suffix ? ($name ? 'foo' : "1") : ""),
+ "Test $pat and \$REGERROR $suffix";
+ }
+ }
+ }
+ }
+
+
+ {
+ # Test named commits and the $REGERROR var
+ local $Message = '$REGERROR';
+ our $REGERROR;
+ for my $word (qw (bar baz bop)) {
+ $REGERROR = "";
+ "aaaaa$word" =~
+ /a+(?:bar(*COMMIT:bar)|baz(*COMMIT:baz)|bop(*COMMIT:bop))(*FAIL)/;
+ iseq $REGERROR, $word;
+ }
+ }
+
+
+ {
+ local $BugId = '40684';
+ local $Message = '/m in precompiled regexp';
+ my $s = "abc\ndef";
+ my $rex = qr'^abc$'m;
+ ok $s =~ m/$rex/;
+ ok $s =~ m/^abc$/m;
+ }
+
+
+ {
+ #Mindnumbingly simple test of (*THEN)
+ for ("ABC","BAX") {
+ ok /A (*THEN) X | B (*THEN) C/x, "Simple (*THEN) test";
+ }
+ }
+
+
+ {
+ local $Message = "Relative Recursion";
+ my $parens = qr/(\((?:[^()]++|(?-1))*+\))/;
+ local $_ = 'foo((2*3)+4-3) + bar(2*(3+4)-1*(2-3))';
+ my ($all, $one, $two) = ('', '', '');
+ ok /foo $parens \s* \+ \s* bar $parens/x;
+ iseq $1, '((2*3)+4-3)';
+ iseq $2, '(2*(3+4)-1*(2-3))';
+ iseq $&, 'foo((2*3)+4-3) + bar(2*(3+4)-1*(2-3))';
+ iseq $&, $_;
+ }
+
+ {
+ my $spaces=" ";
+ local $_ = join 'bar', $spaces, $spaces;
+ our $count = 0;
+ s/(?>\s+bar)(?{$count++})//g;
+ iseq $_, $spaces, "SUSPEND final string";
+ iseq $count, 1, "Optimiser should have prevented more than one match";
+ }
+
+ {
+ local $BugId = '36909';
+ local $Message = '(?: ... )? should not lose $^R';
+ $^R = 'Nothing';
+ {
+ local $^R = "Bad";
+ ok 'x foofoo y' =~ m {
+ (foo) # $^R correctly set
+ (?{ "last regexp code result" })
+ }x;
+ iseq $^R, 'last regexp code result';
+ }
+ iseq $^R, 'Nothing';
+
+ {
+ local $^R = "Bad";
+
+ ok 'x foofoo y' =~ m {
+ (?:foo|bar)+ # $^R correctly set
+ (?{ "last regexp code result" })
+ }x;
+ iseq $^R, 'last regexp code result';
+ }
+ iseq $^R, 'Nothing';
+
+ {
+ local $^R = "Bad";
+ ok 'x foofoo y' =~ m {
+ (foo|bar)\1+ # $^R undefined
+ (?{ "last regexp code result" })
+ }x;
+ iseq $^R, 'last regexp code result';
+ }
+ iseq $^R, 'Nothing';
+
+ {
+ local $^R = "Bad";
+ ok 'x foofoo y' =~ m {
+ (foo|bar)\1 # This time without the +
+ (?{"last regexp code result"})
+ }x;
+ iseq $^R, 'last regexp code result';
+ }
+ iseq $^R, 'Nothing';
+ }
+
+
+ {
+ local $BugId = '22395';
+ local $Message = 'Match is linear, not quadratic';
+ our $count;
+ for my $l (10, 100, 1000) {
+ $count = 0;
+ ('a' x $l) =~ /(.*)(?{$count++})[bc]/;
+ local $TODO = "Should be L+1 not L*(L+3)/2 (L=$l)";
+ iseq $count, $l + 1;
+ }
+ }
+
+
+ {
+ local $BugId = '22614';
+ local $Message = '@-/@+ should not have undefined values';
+ local $_ = 'ab';
+ our @len = ();
+ /(.){1,}(?{push @len,0+@-})(.){1,}(?{})^/;
+ iseq "@len", "2 2 2";
+ }
+
+
+ {
+ local $BugId = '18209';
+ local $Message = '$& set on s///';
+ my $text = ' word1 word2 word3 word4 word5 word6 ';
+
+ my @words = ('word1', 'word3', 'word5');
+ my $count;
+ foreach my $word (@words) {
+ $text =~ s/$word\s//gi; # Leave a space to seperate words
+ # in the resultant str.
+ # The following block is not working.
+ if ($&) {
+ $count ++;
+ }
+ # End bad block
+ }
+ iseq $count, 3;
+ iseq $text, ' word2 word4 word6 ';
+ }
+
+
+ {
+ # RT#6893
+ local $BugId = '6893';
+ local $_ = qq (A\nB\nC\n);
+ my @res;
+ while (m#(\G|\n)([^\n]*)\n#gsx) {
+ push @res, "$2";
+ last if @res > 3;
+ }
+ iseq "@res", "A B C", "/g pattern shouldn't infinite loop";
+ }
+
+
+ {
+ # From Message-ID: <877ixs6oa6.fsf@k75.linux.bogus>
+ my $dow_name = "nada";
+ my $parser = "(\$dow_name) = \$time_string =~ /(D\x{e9}\\ " .
+ "C\x{e9}adaoin|D\x{e9}\\ Sathairn|\\w+|\x{100})/";
+ my $time_string = "D\x{e9} C\x{e9}adaoin";
+ eval $parser;
+ ok !$@, "Test Eval worked";
+ iseq $dow_name, $time_string, "UTF-8 trie common prefix extraction";
+ }
+
+
+ {
+ my $v;
+ ($v = 'bar') =~ /(\w+)/g;
+ $v = 'foo';
+ iseq "$1", 'bar', '$1 is safe after /g - may fail due ' .
+ 'to specialized config in pp_hot.c'
+ }
+
+
+ {
+ local $Message = "http://nntp.perl.org/group/perl.perl5.porters/118663";
+ my $qr_barR1 = qr/(bar)\g-1/;
+ ok "foobarbarxyz" =~ $qr_barR1;
+ ok "foobarbarxyz" =~ qr/foo${qr_barR1}xyz/;
+ ok "foobarbarxyz" =~ qr/(foo)${qr_barR1}xyz/;
+ ok "foobarbarxyz" =~ qr/(foo)(bar)\g{-1}xyz/;
+ ok "foobarbarxyz" =~ qr/(foo${qr_barR1})xyz/;
+ ok "foobarbarxyz" =~ qr/(foo(bar)\g{-1})xyz/;
+ }
+
+
+ {
+ local $BugId = '41010';
+ local $Message = 'No optimizer bug';
+ my @tails = ('', '(?(1))', '(|)', '()?');
+ my @quants = ('*','+');
+ my $doit = sub {
+ my $pats = shift;
+ for (@_) {
+ for my $pat (@$pats) {
+ for my $quant (@quants) {
+ for my $tail (@tails) {
+ my $re = "($pat$quant\$)$tail";
+ ok /$re/ && $1 eq $_, "'$_' =~ /$re/";
+ ok /$re/m && $1 eq $_, "'$_' =~ /$re/m";
+ }
+ }
+ }
+ }
+ };
+
+ my @dpats = ('\d',
+ '[1234567890]',
+ '(1|[23]|4|[56]|[78]|[90])',
+ '(?:1|[23]|4|[56]|[78]|[90])',
+ '(1|2|3|4|5|6|7|8|9|0)',
+ '(?:1|2|3|4|5|6|7|8|9|0)');
+ my @spats = ('[ ]', ' ', '( |\t)', '(?: |\t)', '[ \t]', '\s');
+ my @sstrs = (' ');
+ my @dstrs = ('12345');
+ $doit -> (\@spats, @sstrs);
+ $doit -> (\@dpats, @dstrs);
+ }
+
+
+ {
+ local $Message = '$REGMARK';
+ our @r = ();
+ our ($REGMARK, $REGERROR);
+ ok 'foofoo' =~ /foo (*MARK:foo) (?{push @r,$REGMARK}) /x;
+ iseq "@r","foo";
+ iseq $REGMARK, "foo";
+ ok 'foofoo' !~ /foo (*MARK:foo) (*FAIL) /x;
+ ok !$REGMARK;
+ iseq $REGERROR, 'foo';
+ }
+
+
+ {
+ local $Message = '\K test';
+ my $x;
+ $x = "abc.def.ghi.jkl";
+ $x =~ s/.*\K\..*//;
+ iseq $x, "abc.def.ghi";
+
+ $x = "one two three four";
+ $x =~ s/o+ \Kthree//g;
+ iseq $x, "one two four";
+
+ $x = "abcde";
+ $x =~ s/(.)\K/$1/g;
+ iseq $x, "aabbccddee";
+ }
+
+
+ {
+ sub kt {
+ return '4' if $_[0] eq '09028623';
+ }
+ # Nested EVAL using PL_curpm (via $1 or friends)
+ my $re;
+ our $grabit = qr/ ([0-6][0-9]{7}) (??{ kt $1 }) [890] /x;
+ $re = qr/^ ( (??{ $grabit }) ) $ /x;
+ my @res = '0902862349' =~ $re;
+ iseq join ("-", @res), "0902862349",
+ 'PL_curpm is set properly on nested eval';
+
+ our $qr = qr/ (o) (??{ $1 }) /x;
+ ok 'boob'=~/( b (??{ $qr }) b )/x && 1, "PL_curpm, nested eval";
+ }
+
+
+ {
+ use charnames ":full";
+ ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Alphabetic}/, "I =~ Alphabetic";
+ ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Uppercase}/, "I =~ Uppercase";
+ ok "\N{ROMAN NUMERAL ONE}" !~ /\p{Lowercase}/, "I !~ Lowercase";
+ ok "\N{ROMAN NUMERAL ONE}" =~ /\p{IDStart}/, "I =~ ID_Start";
+ ok "\N{ROMAN NUMERAL ONE}" =~ /\p{IDContinue}/, "I =~ ID_Continue";
+ ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Alphabetic}/, "i =~ Alphabetic";
+ ok "\N{SMALL ROMAN NUMERAL ONE}" !~ /\p{Uppercase}/, "i !~ Uppercase";
+ ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Lowercase}/, "i =~ Lowercase";
+ ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{IDStart}/, "i =~ ID_Start";
+ ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{IDContinue}/, "i =~ ID_Continue"
+ }
+
+
+ {
+ # requirement of Unicode Technical Standard #18, 1.7 Code Points
+ # cf. http://www.unicode.org/reports/tr18/#Supplementary_Characters
+ for my $u (0x7FF, 0x800, 0xFFFF, 0x10000) {
+ no warnings 'utf8'; # oops
+ my $c = chr $u;
+ my $x = sprintf '%04X', $u;
+ ok "A${c}B" =~ /A[\0-\x{10000}]B/, "Unicode range - $x";
+ }
+ }
+
+
+ {
+ my $res="";
+
+ if ('1' =~ /(?|(?<digit>1)|(?<digit>2))/) {
+ $res = "@{$- {digit}}";
+ }
+ iseq $res, "1",
+ "Check that (?|...) doesnt cause dupe entries in the names array";
+
+ $res = "";
+ if ('11' =~ /(?|(?<digit>1)|(?<digit>2))(?&digit)/) {
+ $res = "@{$- {digit}}";
+ }
+ iseq $res, "1", "Check that (?&..) to a buffer inside " .
+ "a (?|...) goes to the leftmost";
+ }
+
+
+ {
+ use warnings;
+ local $Message = "ASCII pattern that really is UTF-8";
+ my @w;
+ local $SIG {__WARN__} = sub {push @w, "@_"};
+ my $c = qq (\x{DF});
+ ok $c =~ /${c}|\x{100}/;
+ ok @w == 0;
+ }
+
+
+ {
+ local $Message = "Corruption of match results of qr// across scopes";
+ my $qr = qr/(fo+)(ba+r)/;
+ 'foobar' =~ /$qr/;
+ iseq "$1$2", "foobar";
+ {
+ 'foooooobaaaaar' =~ /$qr/;
+ iseq "$1$2", 'foooooobaaaaar';
+ }
+ iseq "$1$2", "foobar";
+ }
+
+
+ {
+ local $Message = "HORIZWS";
+ local $_ = "\t \r\n \n \t".chr(11)."\n";
+ s/\H/H/g;
+ s/\h/h/g;
+ iseq $_, "hhHHhHhhHH";
+ $_ = "\t \r\n \n \t" . chr (11) . "\n";
+ utf8::upgrade ($_);
+ s/\H/H/g;
+ s/\h/h/g;
+ iseq $_, "hhHHhHhhHH";
+ }
+
+
+ {
+ local $Message = "Various whitespace special patterns";
+ my @h = map {chr $_} 0x09, 0x20, 0xa0, 0x1680, 0x180e, 0x2000,
+ 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006,
+ 0x2007, 0x2008, 0x2009, 0x200a, 0x202f, 0x205f,
+ 0x3000;
+ my @v = map {chr $_} 0x0a, 0x0b, 0x0c, 0x0d, 0x85, 0x2028,
+ 0x2029;
+ my @lb = ("\x0D\x0A", map {chr $_} 0x0A .. 0x0D, 0x85, 0x2028, 0x2029);
+ foreach my $t ([\@h, qr/\h/, qr/\h+/],
+ [\@v, qr/\v/, qr/\v+/],
+ [\@lb, qr/\R/, qr/\R+/],) {
+ my $ary = shift @$t;
+ foreach my $pat (@$t) {
+ foreach my $str (@$ary) {
+ ok $str =~ /($pat)/, $pat;
+ iseq $1, $str, $pat;
+ utf8::upgrade ($str);
+ ok $str =~ /($pat)/, "Upgraded string - $pat";
+ iseq $1, $str, "Upgraded string - $pat";
+ }
+ }
+ }
+ }
+
+
+ {
+ local $Message = "Check that \\xDF match properly in its various forms";
+ # Test that \xDF matches properly. this is pretty hacky stuff,
+ # but its actually needed. The malarky with '-' is to prevent
+ # compilation caching from playing any role in the test.
+ my @df = (chr (0xDF), '-', chr (0xDF));
+ utf8::upgrade ($df [2]);
+ my @strs = ('ss', 'sS', 'Ss', 'SS', chr (0xDF));
+ my @ss = map {("$_", "$_")} @strs;
+ utf8::upgrade ($ss [$_ * 2 + 1]) for 0 .. $#strs;
+
+ for my $ssi (0 .. $#ss) {
+ for my $dfi (0 .. $#df) {
+ my $pat = $df [$dfi];
+ my $str = $ss [$ssi];
+ my $utf_df = ($dfi > 1) ? 'utf8' : '';
+ my $utf_ss = ($ssi % 2) ? 'utf8' : '';
+ (my $sstr = $str) =~ s/\xDF/\\xDF/;
+
+ if ($utf_df || $utf_ss || length ($ss [$ssi]) == 1) {
+ my $ret = $str =~ /$pat/i;
+ next if $pat eq '-';
+ ok $ret, "\"$sstr\" =~ /\\xDF/i " .
+ "(str is @{[$utf_ss||'latin']}, pat is " .
+ "@{[$utf_df||'latin']})";
+ }
+ else {
+ my $ret = $str !~ /$pat/i;
+ next if $pat eq '-';
+ ok $ret, "\"$sstr\" !~ /\\xDF/i " .
+ "(str is @{[$utf_ss||'latin']}, pat is " .
+ "@{[$utf_df||'latin']})";
+ }
+ }
+ }
+ }
+
+
+ {
+ local $Message = "BBC(Bleadperl Breaks CPAN) Today: String::Multibyte";
+ my $re = qr/(?:[\x00-\xFF]{4})/;
+ my $hyp = "\0\0\0-";
+ my $esc = "\0\0\0\\";
+
+ my $str = "$esc$hyp$hyp$esc$esc";
+ my @a = ($str =~ /\G(?:\Q$esc$esc\E|\Q$esc$hyp\E|$re)/g);
+
+ iseq @a,3;
+ local $" = "=";
+ iseq "@a","$esc$hyp=$hyp=$esc$esc";
+ }
+
+
+ {
+ # Test for keys in %+ and %-
+ local $Message = 'Test keys in %+ and %-';
+ no warnings 'uninitialized';
+ my $_ = "abcdef";
+ /(?<foo>a)|(?<foo>b)/;
+ iseq ((join ",", sort keys %+), "foo");
+ iseq ((join ",", sort keys %-), "foo");
+ iseq ((join ",", sort values %+), "a");
+ iseq ((join ",", sort map "@$_", values %-), "a ");
+ /(?<bar>a)(?<bar>b)(?<quux>.)/;
+ iseq ((join ",", sort keys %+), "bar,quux");
+ iseq ((join ",", sort keys %-), "bar,quux");
+ iseq ((join ",", sort values %+), "a,c"); # leftmost
+ iseq ((join ",", sort map "@$_", values %-), "a b,c");
+ /(?<un>a)(?<deux>c)?/; # second buffer won't capture
+ iseq ((join ",", sort keys %+), "un");
+ iseq ((join ",", sort keys %-), "deux,un");
+ iseq ((join ",", sort values %+), "a");
+ iseq ((join ",", sort map "@$_", values %-), ",a");
+ }
+
+
+ {
+ # length() on captures, the numbered ones end up in Perl_magic_len
+ my $_ = "aoeu \xe6var ook";
+ /^ \w+ \s (?<eek>\S+)/x;
+
+ iseq length ($`), 0, q[length $`];
+ iseq length ($'), 4, q[length $'];
+ iseq length ($&), 9, q[length $&];
+ iseq length ($1), 4, q[length $1];
+ iseq length ($+{eek}), 4, q[length $+{eek} == length $1];
+ }
+
+
+ {
+ my $ok = -1;
+
+ $ok = exists ($-{x}) ? 1 : 0 if 'bar' =~ /(?<x>foo)|bar/;
+ iseq $ok, 1, '$-{x} exists after "bar"=~/(?<x>foo)|bar/';
+ iseq scalar (%+), 0, 'scalar %+ == 0 after "bar"=~/(?<x>foo)|bar/';
+ iseq scalar (%-), 1, 'scalar %- == 1 after "bar"=~/(?<x>foo)|bar/';
+
+ $ok = -1;
+ $ok = exists ($+{x}) ? 1 : 0 if 'bar' =~ /(?<x>foo)|bar/;
+ iseq $ok, 0, '$+{x} not exists after "bar"=~/(?<x>foo)|bar/';
+ iseq scalar (%+), 0, 'scalar %+ == 0 after "bar"=~/(?<x>foo)|bar/';
+ iseq scalar (%-), 1, 'scalar %- == 1 after "bar"=~/(?<x>foo)|bar/';
+
+ $ok = -1;
+ $ok = exists ($-{x}) ? 1 : 0 if 'foo' =~ /(?<x>foo)|bar/;
+ iseq $ok, 1, '$-{x} exists after "foo"=~/(?<x>foo)|bar/';
+ iseq scalar (%+), 1, 'scalar %+ == 1 after "foo"=~/(?<x>foo)|bar/';
+ iseq scalar (%-), 1, 'scalar %- == 1 after "foo"=~/(?<x>foo)|bar/';
+
+ $ok = -1;
+ $ok = exists ($+{x}) ? 1 : 0 if 'foo'=~/(?<x>foo)|bar/;
+ iseq $ok, 1, '$+{x} exists after "foo"=~/(?<x>foo)|bar/';
+ }
+
+
+ {
+ local $_;
+ ($_ = 'abc') =~ /(abc)/g;
+ $_ = '123';
+ iseq "$1", 'abc', "/g leads to unsafe match vars: $1";
+ }
+
+
+ {
+ local $Message = 'Message-ID: <20070818091501.7eff4831@r2d2>';
+ my $str = "";
+ for (0 .. 5) {
+ my @x;
+ $str .= "@x"; # this should ALWAYS be the empty string
+ 'a' =~ /(a|)/;
+ push @x, 1;
+ }
+ iseq length ($str), 0, "Trie scope error, string should be empty";
+ $str = "";
+ my @foo = ('a') x 5;
+ for (@foo) {
+ my @bar;
+ $str .= "@bar";
+ s/a|/push @bar, 1/e;
+ }
+ iseq length ($str), 0, "Trie scope error, string should be empty";
+ }
+
+
+ {
+ local $BugId = '45605';
+ # [perl #45605] Regexp failure with utf8-flagged and byte-flagged string
+
+ my $utf_8 = "\xd6schel";
+ utf8::upgrade ($utf_8);
+ $utf_8 =~ m {(\xd6|Ö)schel};
+ iseq $1, "\xd6", "Upgrade error";
+ }
+
+ {
+# more TRIE/AHOCORASICK problems with mixed utf8 / latin-1 and case folding
+ for my $chr (160 .. 255) {
+ my $chr_byte = chr($chr);
+ my $chr_utf8 = chr($chr); utf8::upgrade($chr_utf8);
+ my $rx = qr{$chr_byte|X}i;
+ ok($chr_utf8 =~ $rx, "utf8/latin, codepoint $chr");
+ }
+ }
+
+ {
+ # Regardless of utf8ness any character matches itself when
+ # doing a case insensitive match. See also [perl #36207]
+ local $BugId = '36207';
+ for my $o (0 .. 255) {
+ my @ch = (chr ($o), chr ($o));
+ utf8::upgrade ($ch [1]);
+ for my $u_str (0, 1) {
+ for my $u_pat (0, 1) {
+ ok $ch [$u_str] =~ /\Q$ch[$u_pat]\E/i,
+ "\$c =~ /\$c/i : chr ($o) : u_str = $u_str u_pat = $u_pat";
+ ok $ch [$u_str] =~ /\Q$ch[$u_pat]\E|xyz/i,
+ "\$c=~/\$c|xyz/i : chr($o) : u_str = $u_str u_pat = $u_pat";
+ }
+ }
+ }
+ }
+
+
+ {
+ our $a = 3; "" =~ /(??{ $a })/;
+ our $b = $a;
+ iseq $b, $a, "Copy of scalar used for postponed subexpression";
+ }
+
+
+ {
+ local $BugId = '49190';
+ local $Message = '$REGMARK in replacement';
+ our $REGMARK;
+ my $_ = "A";
+ ok s/(*:B)A/$REGMARK/;
+ iseq $_, "B";
+ $_ = "CCCCBAA";
+ ok s/(*:X)A+|(*:Y)B+|(*:Z)C+/$REGMARK/g;
+ iseq $_, "ZYX";
+ }
+
+
+ {
+ our @ctl_n = ();
+ our @plus = ();
+ our $nested_tags;
+ $nested_tags = qr{
+ <
+ (\w+)
+ (?{
+ push @ctl_n,$^N;
+ push @plus,$+;
+ })
+ >
+ (??{$nested_tags})*
+ </\s* \w+ \s*>
+ }x;
+
+ my $match = '<bla><blubb></blubb></bla>' =~ m/^$nested_tags$/;
+ ok $match, 'nested construct matches';
+ iseq "@ctl_n", "bla blubb", '$^N inside of (?{}) works as expected';
+ iseq "@plus", "bla blubb", '$+ inside of (?{}) works as expected';
+ }
+
+
+ {
+ local $BugId = '52658';
+ local $Message = 'Substitution evaluation in list context';
+ my $reg = '../xxx/';
+ my @te = ($reg =~ m{^(/?(?:\.\./)*)},
+ $reg =~ s/(x)/'b'/eg > 1 ? '##' : '++');
+ iseq $reg, '../bbb/';
+ iseq $te [0], '../';
+ }
+
+ # This currently has to come before any "use encoding" in this file.
+ {
+ local $Message;
+ local $BugId = '59342';
+ must_warn 'qr/\400/', '^Use of octal value above 377';
+ }
+
+
+ SKIP: {
+ # XXX: This set of tests is essentially broken, POSIX character classes
+ # should not have differing definitions under Unicode.
+ # There are property names for that.
+ skip "Tests assume ASCII", 4 unless $IS_ASCII;
+
+ my @notIsPunct = grep {/[[:punct:]]/ and not /\p{IsPunct}/}
+ map {chr} 0x20 .. 0x7f;
+ iseq join ('', @notIsPunct), '$+<=>^`|~',
+ '[:punct:] disagress with IsPunct on Symbols';
+
+ my @isPrint = grep {not /[[:print:]]/ and /\p{IsPrint}/}
+ map {chr} 0 .. 0x1f, 0x7f .. 0x9f;
+ iseq join ('', @isPrint), "\x09\x0a\x0b\x0c\x0d\x85",
+ 'IsPrint disagrees with [:print:] on control characters';
+
+ my @isPunct = grep {/[[:punct:]]/ != /\p{IsPunct}/}
+ map {chr} 0x80 .. 0xff;
+ iseq join ('', @isPunct), "\xa1\xab\xb7\xbb\xbf", # ¡ « · » ¿
+ 'IsPunct disagrees with [:punct:] outside ASCII';
+
+ my @isPunctLatin1 = eval q {
+ use encoding 'latin1';
+ grep {/[[:punct:]]/ != /\p{IsPunct}/} map {chr} 0x80 .. 0xff;
+ };
+ skip "Eval failed ($@)", 1 if $@;
+ skip "PERL_LEGACY_UNICODE_CHARCLASS_MAPPINGS set to 0", 1
+ if !$ENV{PERL_TEST_LEGACY_POSIX_CC};
+ iseq join ('', @isPunctLatin1), '',
+ 'IsPunct agrees with [:punct:] with explicit Latin1';
+ }
+
+
+ {
+ local $BugId = '60034';
+ my $a = "xyzt" x 8192;
+ ok $a =~ /\A(?>[a-z])*\z/,
+ '(?>) does not cause wrongness on long string';
+ my $b = $a . chr 256;
+ chop $b;
+ {
+ iseq $a, $b;
+ }
+ ok $b =~ /\A(?>[a-z])*\z/,
+ '(?>) does not cause wrongness on long string with UTF-8';
+ }
+
+
+ #
+ # Keep the following tests last -- they may crash perl
+ #
+ print "# Tests that follow may crash perl\n";
+ {
+ local $BugId = '19049/38869';
+ local $Message = 'Pattern in a loop, failure should not ' .
+ 'affect previous success';
+ my @list = (
+ 'ab cdef', # Matches regex
+ ('e' x 40000 ) .'ab c' # Matches not, but 'ab c' matches part of it
+ );
+ my $y;
+ my $x;
+ foreach (@list) {
+ m/ab(.+)cd/i; # The ignore-case seems to be important
+ $y = $1; # Use $1, which might not be from the last match!
+ $x = substr ($list [0], $- [0], $+ [0] - $- [0]);
+ }
+ iseq $y, ' ';
+ iseq $x, 'ab cd';
+ }
+
+
+ {
+ local $BugId = '24274';
+
+ ok (("a" x (2 ** 15 - 10)) =~ /^()(a|bb)*$/, "Recursive stack cracker");
+ ok ((q(a)x 100) =~ /^(??{'(.)'x 100})/,
+ "Regexp /^(??{'(.)'x 100})/ crashes older perls");
+ }
+
+
+ {
+ eval '/\k/';
+ ok $@ =~ /\QSequence \k... not terminated in regex;\E/,
+ 'Lone \k not allowed';
+ }
+
+
+ {
+ local $Message = "Substitution with lookahead (possible segv)";
+ $_ = "ns1ns1ns1";
+ s/ns(?=\d)/ns_/g;
+ iseq $_, "ns_1ns_1ns_1";
+ $_ = "ns1";
+ s/ns(?=\d)/ns_/;
+ iseq $_, "ns_1";
+ $_ = "123";
+ s/(?=\d+)|(?<=\d)/!Bang!/g;
+ iseq $_, "!Bang!1!Bang!2!Bang!3!Bang!";
+ }
+
+
+ {
+ # [perl #45337] utf8 + "[a]a{2}" + /$.../ = panic: sv_len_utf8 cache
+ local $BugId = '45337';
+ local ${^UTF8CACHE} = -1;
+ local $Message = "Shouldn't panic";
+ my $s = "[a]a{2}";
+ utf8::upgrade $s;
+ ok "aaa" =~ /$s/;
+ }
+ {
+ local $BugId = '57042';
+ local $Message = "Check if tree logic breaks \$^R";
+ my $cond_re = qr/\s*
+ \s* (?:
+ \( \s* A (?{1})
+ | \( \s* B (?{2})
+ )
+ /x;
+ my @res;
+ for my $line ("(A)","(B)") {
+ if ($line =~ m/$cond_re/) {
+ push @res, $^R ? "#$^R" : "UNDEF";
+ }
+ }
+ iseq "@res","#1 #2";
+ }
+ {
+ no warnings 'closure';
+ my $re = qr/A(??{"1"})/;
+ ok "A1B" =~ m/^((??{ $re }))((??{"B"}))$/;
+ ok $1 eq "A1";
+ ok $2 eq "B";
+ }
+
+
+ {
+ use re 'eval';
+ local $Message = 'Test if $^N and $+ work in (?{{})';
+ our @ctl_n = ();
+ our @plus = ();
+ our $nested_tags;
+ $nested_tags = qr{
+ <
+ ((\w)+)
+ (?{
+ push @ctl_n, (defined $^N ? $^N : "undef");
+ push @plus, (defined $+ ? $+ : "undef");
+ })
+ >
+ (??{$nested_tags})*
+ </\s* \w+ \s*>
+ }x;
+
+
+ my $c = 0;
+ for my $test (
+ # Test structure:
+ # [ Expected result, Regex, Expected value(s) of $^N, Expected value(s) of $+ ]
+ [ 1, qr#^$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^($nested_tags)$#, "bla blubb <bla><blubb></blubb></bla>", "a b a" ],
+ [ 1, qr#^(|)$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^(?:|)$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^<(bl|bla)>$nested_tags<(/\1)>$#, "blubb /bla", "b /bla" ],
+ [ 1, qr#(??{"(|)"})$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^(??{"(bla|)"})$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^(??{"(|)"})(??{$nested_tags})$#, "bla blubb undef", "a b undef" ],
+ [ 1, qr#^(??{"(?:|)"})$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^((??{"(?:bla|)"}))((??{$nested_tags}))$#, "bla blubb <bla><blubb></blubb></bla>", "a b <bla><blubb></blubb></bla>" ],
+ [ 1, qr#^((??{"(?!)?"}))((??{$nested_tags}))$#, "bla blubb <bla><blubb></blubb></bla>", "a b <bla><blubb></blubb></bla>" ],
+ [ 1, qr#^((??{"(?:|<(/?bla)>)"}))((??{$nested_tags}))\1$#, "bla blubb <bla><blubb></blubb></bla>", "a b <bla><blubb></blubb></bla>" ],
+ [ 0, qr#^((??{"(?!)"}))?((??{$nested_tags}))(?!)$#, "bla blubb undef", "a b undef" ],
+
+ ) { #"#silence vim highlighting
+ $c++;
+ @ctl_n = ();
+ @plus = ();
+ my $match = (("<bla><blubb></blubb></bla>" =~ $test->[1]) ? 1 : 0);
+ push @ctl_n, (defined $^N ? $^N : "undef");
+ push @plus, (defined $+ ? $+ : "undef");
+ ok($test->[0] == $match, "match $c");
+ if ($test->[0] != $match) {
+ # unset @ctl_n and @plus
+ @ctl_n = @plus = ();
+ }
+ iseq("@ctl_n", $test->[2], "ctl_n $c");
+ iseq("@plus", $test->[3], "plus $c");
+ }
+ }
+
+ {
+ use re 'eval';
+ local $BugId = '56194';
+
+ our $f;
+ local $f;
+ $f = sub {
+ defined $_[0] ? $_[0] : "undef";
+ };
+
+ ok("123" =~ m/^(\d)(((??{1 + $^N})))+$/);
+
+ our @ctl_n;
+ our @plus;
+
+ my $re = qr#(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))*(?{$^N})#;
+ my $re2 = qr#(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))*(?{$^N})(|a(b)c|def)(??{"$^R"})#;
+ my $re3 = qr#(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1})){2}(?{$^N})(|a(b)c|def)(??{"$^R"})#;
+ our $re5;
+ local $re5 = qr#(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1})){2}(?{$^N})#;
+ my $re6 = qr#(??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1})#;
+ my $re7 = qr#(??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1})#;
+ my $re8 = qr/(\d+)/;
+ my $c = 0;
+ for my $test (
+ # Test structure:
+ # [
+ # String to match
+ # Regex too match
+ # Expected values of $^N
+ # Expected values of $+
+ # Expected values of $1, $2, $3, $4 and $5
+ # ]
+ [
+ "1233",
+ qr#^(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))+(??{$^N})$#,
+ "1 2 3 3",
+ "1 2 3 3",
+ "\$1 = 1, \$2 = 3, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "1233",
+ qr#^(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))+(abc|def|)?(??{$+})$#,
+ "1 2 3 3",
+ "1 2 3 3",
+ "\$1 = 1, \$2 = 3, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "1233",
+ qr#^(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))+(|abc|def)?(??{$+})$#,
+ "1 2 3 3",
+ "1 2 3 3",
+ "\$1 = 1, \$2 = 3, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "1233",
+ qr#^(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))+(abc|def|)?(??{$^N})$#,
+ "1 2 3 3",
+ "1 2 3 3",
+ "\$1 = 1, \$2 = 3, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "1233",
+ qr#^(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))+(|abc|def)?(??{$^N})$#,
+ "1 2 3 3",
+ "1 2 3 3",
+ "\$1 = 1, \$2 = 3, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "123abc3",
+ qr#^($re)(|a(b)c|def)(??{$^R})$#,
+ "1 2 3 abc",
+ "1 2 3 b",
+ "\$1 = 123, \$2 = 1, \$3 = 3, \$4 = abc, \$5 = b",
+ ],
+ [
+ "123abc3",
+ qr#^($re2)$#,
+ "1 2 3 123abc3",
+ "1 2 3 b",
+ "\$1 = 123abc3, \$2 = 1, \$3 = 3, \$4 = abc, \$5 = b",
+ ],
+ [
+ "123abc3",
+ qr#^($re3)$#,
+ "1 2 123abc3",
+ "1 2 b",
+ "\$1 = 123abc3, \$2 = 1, \$3 = 3, \$4 = abc, \$5 = b",
+ ],
+ [
+ "123abc3",
+ qr#^(??{$re5})(|abc|def)(??{"$^R"})$#,
+ "1 2 abc",
+ "1 2 abc",
+ "\$1 = abc, \$2 = undef, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "123abc3",
+ qr#^(??{$re5})(|a(b)c|def)(??{"$^R"})$#,
+ "1 2 abc",
+ "1 2 b",
+ "\$1 = abc, \$2 = b, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "1234",
+ qr#^((\d+)((??{push @ctl_n, $f->($^N); push @plus, $f->($+);$^N + 1}))((??{push @ctl_n, $f->($^N); push @plus, $f->($+);$^N + 1}))((??{push @ctl_n, $f->($^N); push @plus, $f->($+);$^N + 1})))$#,
+ "1234 123 12 1 2 3 1234",
+ "1234 123 12 1 2 3 4",
+ "\$1 = 1234, \$2 = 1, \$3 = 2, \$4 = 3, \$5 = 4",
+ ],
+ [
+ "1234556",
+ qr#^(\d+)($re6)($re6)($re6)$re6(($re6)$re6)$#,
+ "1234556 123455 12345 1234 123 12 1 2 3 4 4 5 56",
+ "1234556 123455 12345 1234 123 12 1 2 3 4 4 5 5",
+ "\$1 = 1, \$2 = 2, \$3 = 3, \$4 = 4, \$5 = 56",
+ ],
+ [
+ "12345562",
+ qr#^((??{$re8}))($re7)($re7)($re7)$re7($re7)($re7(\2))$#,
+ "12345562 1234556 123455 12345 1234 123 12 1 2 3 4 4 5 62",
+ "12345562 1234556 123455 12345 1234 123 12 1 2 3 4 4 5 2",
+ "\$1 = 1, \$2 = 2, \$3 = 3, \$4 = 4, \$5 = 5",
+ ],
+ ) {
+ $c++;
+ @ctl_n = ();
+ @plus = ();
+ undef $^R;
+ my $match = $test->[0] =~ $test->[1];
+ my $str = join(", ", '$1 = '.$f->($1), '$2 = '.$f->($2), '$3 = '.$f->($3), '$4 = '.$f->($4),'$5 = '.$f->($5));
+ push @ctl_n, $f->($^N);
+ push @plus, $f->($+);
+ ok($match, "match $c");
+ if (not $match) {
+ # unset $str, @ctl_n and @plus
+ $str = "";
+ @ctl_n = @plus = ();
+ }
+ iseq("@ctl_n", $test->[2], "ctl_n $c");
+ iseq("@plus", $test->[3], "plus $c");
+ iseq($str, $test->[4], "str $c");
+ }
+ SKIP: {
+ if ($] le '5.010') {
+ skip "test segfaults on perl < 5.10", 4;
+ }
+
+ @ctl_n = ();
+ @plus = ();
+
+ our $re4;
+ local $re4 = qr#(1)((??{push @ctl_n, $f->($^N); push @plus, $f->($+);$^N + 1})){2}(?{$^N})(|abc|def)(??{"$^R"})#;
+ undef $^R;
+ my $match = "123abc3" =~ m/^(??{$re4})$/;
+ my $str = join(", ", '$1 = '.$f->($1), '$2 = '.$f->($2), '$3 = '.$f->($3), '$4 = '.$f->($4),'$5 = '.$f->($5),'$^R = '.$f->($^R));
+ push @ctl_n, $f->($^N);
+ push @plus, $f->($+);
+ ok($match);
+ if (not $match) {
+ # unset $str
+ @ctl_n = ();
+ @plus = ();
+ $str = "";
+ }
+ iseq("@ctl_n", "1 2 undef");
+ iseq("@plus", "1 2 undef");
+ iseq($str, "\$1 = undef, \$2 = undef, \$3 = undef, \$4 = undef, \$5 = undef, \$^R = undef");
+ }
+ }
+
+ # This only works under -DEBUGGING because it relies on an assert().
+ {
+ local $BugId = '60508';
+ local $Message = "Check capture offset re-entrancy of utf8 code.";
+
+ sub fswash { $_[0] =~ s/([>X])//g; }
+
+ my $k1 = "." x 4 . ">>";
+ fswash($k1);
+
+ my $k2 = "\x{f1}\x{2022}";
+ $k2 =~ s/([\360-\362])/>/g;
+ fswash($k2);
+
+ iseq($k2, "\x{2022}", "utf8::SWASHNEW doesn't cause capture leaks");
+ }
+
+
+ {
+ local $BugId = 65372; # minimal CURLYM limited to 32767 matches
+ my @pat = (
+ qr{a(x|y)*b}, # CURLYM
+ qr{a(x|y)*?b}, # .. with minmod
+ qr{a([wx]|[yz])*b}, # .. and without tries
+ qr{a([wx]|[yz])*?b},
+ );
+ my $len = 32768;
+ my $s = join '', 'a', 'x' x $len, 'b';
+ for my $pat (@pat) {
+ ok($s =~ $pat, $pat);
+ }
+ }
+ #
+ # This should be the last test.
+ #
+ iseq $test + 1, $EXPECTED_TESTS, "Got the right number of tests!";
+
+} # End of sub run_tests
+
+1;
--- /dev/null
+#!./perl
+#
+# This is a home for regular expression tests that don't fit into
+# the format supported by re/regexp.t. If you want to add a test
+# that does fit that format, add it to re/re_tests, not here.
+
+use strict;
+use warnings;
+use 5.010;
+
+
+sub run_tests;
+
+$| = 1;
+
+my $EXPECTED_TESTS = 4066; # Update this when adding/deleting tests.
+
+BEGIN {
+ chdir 't' if -d 't';
+ @INC = '../lib';
+}
+our $TODO;
+our $Message = "Noname test";
+our $Error;
+our $DiePattern;
+our $WarnPattern;
+our $BugId;
+our $PatchId;
+our $running_as_thread;
+
+my $ordA = ord ('A'); # This defines ASCII/UTF-8 vs EBCDIC/UTF-EBCDIC
+# This defined the platform.
+my $IS_ASCII = $ordA == 65;
+my $IS_EBCDIC = $ordA == 193;
+
+use vars '%Config';
+eval 'use Config'; # Defaults assumed if this fails
+
+my $test = 0;
+
+print "1..$EXPECTED_TESTS\n";
+
+run_tests unless caller ();
+
+END {
+}
+
+sub pretty {
+ my ($mess) = @_;
+ $mess =~ s/\n/\\n/g;
+ $mess =~ s/\r/\\r/g;
+ $mess =~ s/\t/\\t/g;
+ $mess =~ s/([\00-\37\177])/sprintf '\%03o', ord $1/eg;
+ $mess =~ s/#/\\#/g;
+ $mess;
+}
+
+sub safe_globals {
+ defined($_) and s/#/\\#/g for $BugId, $PatchId, $TODO;
+}
+
+sub _ok {
+ my ($ok, $mess, $error) = @_;
+ safe_globals();
+ $mess = pretty ($mess // $Message);
+ $mess .= "; Bug $BugId" if defined $BugId;
+ $mess .= "; Patch $PatchId" if defined $PatchId;
+ $mess .= " # TODO $TODO" if defined $TODO;
+
+ my $line_nr = (caller(1)) [2];
+
+ printf "%sok %d - %s\n",
+ ($ok ? "" : "not "),
+ ++ $test,
+ "$mess\tLine $line_nr";
+
+ unless ($ok) {
+ print "# Failed test at line $line_nr\n" unless defined $TODO;
+ if ($error //= $Error) {
+ no warnings 'utf8';
+ chomp $error;
+ $error = join "\n#", map {pretty $_} split /\n\h*#/ => $error;
+ $error = "# $error" unless $error =~ /^\h*#/;
+ print $error, "\n";
+ }
+ }
+
+ return $ok;
+}
+
+# Force scalar context on the pattern match
+sub ok ($;$$) {_ok $_ [0], $_ [1], $_ [2]}
+sub nok ($;$$) {_ok !$_ [0], "Failed: " . ($_ [1] // $Message), $_ [2]}
+
+
+sub skip {
+ my $why = shift;
+ safe_globals();
+ $why =~ s/\n.*//s;
+ $why .= "; Bug $BugId" if defined $BugId;
+ # seems like the new harness code doesnt like todo and skip to be mixed.
+ # which seems like a bug in the harness to me. -- dmq
+ #$why .= " # TODO $TODO" if defined $TODO;
+
+ my $n = shift // 1;
+ my $line_nr = (caller(0)) [2];
+ for (1 .. $n) {
+ ++ $test;
+ #print "not " if defined $TODO;
+ print "ok $test # skip $why\tLine $line_nr\n";
+ }
+ no warnings "exiting";
+ last SKIP;
+}
+
+sub iseq ($$;$) {
+ my ($got, $expect, $name) = @_;
+
+ $_ = defined ($_) ? "'$_'" : "undef" for $got, $expect;
+
+ my $ok = $got eq $expect;
+ my $error = "# expected: $expect\n" .
+ "# result: $got";
+
+ _ok $ok, $name, $error;
+}
+
+sub isneq ($$;$) {
+ my ($got, $expect, $name) = @_;
+ my $todo = $TODO ? " # TODO $TODO" : '';
+
+ $_ = defined ($_) ? "'$_'" : "undef" for $got, $expect;
+
+ my $ok = $got ne $expect;
+ my $error = "# results are equal ($got)";
+
+ _ok $ok, $name, $error;
+}
+
+
+sub eval_ok ($;$) {
+ my ($code, $name) = @_;
+ local $@;
+ if (ref $code) {
+ _ok eval {&$code} && !$@, $name;
+ }
+ else {
+ _ok eval ($code) && !$@, $name;
+ }
+}
+
+sub must_die {
+ my ($code, $pattern, $name) = @_;
+ $pattern //= $DiePattern;
+ undef $@;
+ ref $code ? &$code : eval $code;
+ my $r = $@ && $@ =~ /$pattern/;
+ _ok $r, $name // $Message // "\$\@ =~ /$pattern/";
+}
+
+sub must_warn {
+ my ($code, $pattern, $name) = @_;
+ $pattern //= $WarnPattern;
+ my $w;
+ local $SIG {__WARN__} = sub {$w .= join "" => @_};
+ use warnings 'all';
+ ref $code ? &$code : eval $code;
+ my $r = $w && $w =~ /$pattern/;
+ $w //= "UNDEF";
+ _ok $r, $name // $Message // "Got warning /$pattern/",
+ "# expected: /$pattern/\n" .
+ "# result: $w";
+}
+
+sub may_not_warn {
+ my ($code, $name) = @_;
+ my $w;
+ local $SIG {__WARN__} = sub {$w .= join "" => @_};
+ use warnings 'all';
+ ref $code ? &$code : eval $code;
+ _ok !$w, $name // ($Message ? "$Message (did not warn)"
+ : "Did not warn"),
+ "Got warning '$w'";
+}
+
+
+#
+# Tests start here.
+#
+sub run_tests {
+
+ {
+
+ my $x = "abc\ndef\n";
+
+ ok $x =~ /^abc/, qq ["$x" =~ /^abc/];
+ ok $x !~ /^def/, qq ["$x" !~ /^def/];
+
+ # used to be a test for $*
+ ok $x =~ /^def/m, qq ["$x" =~ /^def/m];
+
+ nok $x =~ /^xxx/, qq ["$x" =~ /^xxx/];
+ nok $x !~ /^abc/, qq ["$x" !~ /^abc/];
+
+ ok $x =~ /def/, qq ["$x" =~ /def/];
+ nok $x !~ /def/, qq ["$x" !~ /def/];
+
+ ok $x !~ /.def/, qq ["$x" !~ /.def/];
+ nok $x =~ /.def/, qq ["$x" =~ /.def/];
+
+ ok $x =~ /\ndef/, qq ["$x" =~ /\ndef/];
+ nok $x !~ /\ndef/, qq ["$x" !~ /\ndef/];
+ }
+
+ {
+ $_ = '123';
+ ok /^([0-9][0-9]*)/, qq [\$_ = '$_'; /^([0-9][0-9]*)/];
+ }
+
+ {
+ $_ = 'aaabbbccc';
+ ok /(a*b*)(c*)/ && $1 eq 'aaabbb' && $2 eq 'ccc',
+ qq [\$_ = '$_'; /(a*b*)(c*)/];
+ ok /(a+b+c+)/ && $1 eq 'aaabbbccc', qq [\$_ = '$_'; /(a+b+c+)/];
+ nok /a+b?c+/, qq [\$_ = '$_'; /a+b?c+/];
+
+ $_ = 'aaabccc';
+ ok /a+b?c+/, qq [\$_ = '$_'; /a+b?c+/];
+ ok /a*b?c*/, qq [\$_ = '$_'; /a*b?c*/];
+
+ $_ = 'aaaccc';
+ ok /a*b?c*/, qq [\$_ = '$_'; /a*b?c*/];
+ nok /a*b+c*/, qq [\$_ = '$_'; /a*b+c*/];
+
+ $_ = 'abcdef';
+ ok /bcd|xyz/, qq [\$_ = '$_'; /bcd|xyz/];
+ ok /xyz|bcd/, qq [\$_ = '$_'; /xyz|bcd/];
+ ok m|bc/*d|, qq [\$_ = '$_'; m|bc/*d|];
+ ok /^$_$/, qq [\$_ = '$_'; /^\$_\$/];
+ }
+
+ {
+ # used to be a test for $*
+ ok "ab\ncd\n" =~ /^cd/m, qq ["ab\ncd\n" =~ /^cd/m];
+ }
+
+ {
+ our %XXX = map {($_ => $_)} 123, 234, 345;
+
+ our @XXX = ('ok 1','not ok 1', 'ok 2','not ok 2','not ok 3');
+ while ($_ = shift(@XXX)) {
+ my $f = index ($_, 'not') >= 0 ? \&nok : \&ok;
+ my $r = ?(.*)?;
+ &$f ($r, "?(.*)?");
+ /not/ && reset;
+ if (/not ok 2/) {
+ if ($^O eq 'VMS') {
+ $_ = shift(@XXX);
+ }
+ else {
+ reset 'X';
+ }
+ }
+ }
+
+ SKIP: {
+ if ($^O eq 'VMS') {
+ skip "Reset 'X'", 1;
+ }
+ ok !keys %XXX, "%XXX is empty";
+ }
+
+ }
+
+ {
+ local $Message = "Test empty pattern";
+ my $xyz = 'xyz';
+ my $cde = 'cde';
+
+ $cde =~ /[^ab]*/;
+ $xyz =~ //;
+ iseq $&, $xyz;
+
+ my $foo = '[^ab]*';
+ $cde =~ /$foo/;
+ $xyz =~ //;
+ iseq $&, $xyz;
+
+ $cde =~ /$foo/;
+ my $null;
+ no warnings 'uninitialized';
+ $xyz =~ /$null/;
+ iseq $&, $xyz;
+
+ $null = "";
+ $xyz =~ /$null/;
+ iseq $&, $xyz;
+ }
+
+ {
+ local $Message = q !Check $`, $&, $'!;
+ $_ = 'abcdefghi';
+ /def/; # optimized up to cmd
+ iseq "$`:$&:$'", 'abc:def:ghi';
+
+ no warnings 'void';
+ /cde/ + 0; # optimized only to spat
+ iseq "$`:$&:$'", 'ab:cde:fghi';
+
+ /[d][e][f]/; # not optimized
+ iseq "$`:$&:$'", 'abc:def:ghi';
+ }
+
+ {
+ $_ = 'now is the {time for all} good men to come to.';
+ / {([^}]*)}/;
+ iseq $1, 'time for all', "Match braces";
+ }
+
+ {
+ local $Message = "{N,M} quantifier";
+ $_ = 'xxx {3,4} yyy zzz';
+ ok /( {3,4})/;
+ iseq $1, ' ';
+ ok !/( {4,})/;
+ ok /( {2,3}.)/;
+ iseq $1, ' y';
+ ok /(y{2,3}.)/;
+ iseq $1, 'yyy ';
+ ok !/x {3,4}/;
+ ok !/^xxx {3,4}/;
+ }
+
+ {
+ local $Message = "Test /g";
+ local $" = ":";
+ $_ = "now is the time for all good men to come to.";
+ my @words = /(\w+)/g;
+ my $exp = "now:is:the:time:for:all:good:men:to:come:to";
+
+ iseq "@words", $exp;
+
+ @words = ();
+ while (/\w+/g) {
+ push (@words, $&);
+ }
+ iseq "@words", $exp;
+
+ @words = ();
+ pos = 0;
+ while (/to/g) {
+ push(@words, $&);
+ }
+ iseq "@words", "to:to";
+
+ pos $_ = 0;
+ @words = /to/g;
+ iseq "@words", "to:to";
+ }
+
+ {
+ $_ = "abcdefghi";
+
+ my $pat1 = 'def';
+ my $pat2 = '^def';
+ my $pat3 = '.def.';
+ my $pat4 = 'abc';
+ my $pat5 = '^abc';
+ my $pat6 = 'abc$';
+ my $pat7 = 'ghi';
+ my $pat8 = '\w*ghi';
+ my $pat9 = 'ghi$';
+
+ my $t1 = my $t2 = my $t3 = my $t4 = my $t5 =
+ my $t6 = my $t7 = my $t8 = my $t9 = 0;
+
+ for my $iter (1 .. 5) {
+ $t1++ if /$pat1/o;
+ $t2++ if /$pat2/o;
+ $t3++ if /$pat3/o;
+ $t4++ if /$pat4/o;
+ $t5++ if /$pat5/o;
+ $t6++ if /$pat6/o;
+ $t7++ if /$pat7/o;
+ $t8++ if /$pat8/o;
+ $t9++ if /$pat9/o;
+ }
+ my $x = "$t1$t2$t3$t4$t5$t6$t7$t8$t9";
+ iseq $x, '505550555', "Test /o";
+ }
+
+
+ SKIP: {
+ my $xyz = 'xyz';
+ ok "abc" =~ /^abc$|$xyz/, "| after \$";
+
+ # perl 4.009 says "unmatched ()"
+ local $Message = '$ inside ()';
+
+ my $result;
+ eval '"abc" =~ /a(bc$)|$xyz/; $result = "$&:$1"';
+ iseq $@, "" or skip "eval failed", 1;
+ iseq $result, "abc:bc";
+ }
+
+
+ {
+ local $Message = "Scalar /g";
+ $_ = "abcfooabcbar";
+
+ ok /abc/g && $` eq "";
+ ok /abc/g && $` eq "abcfoo";
+ ok !/abc/g;
+
+ local $Message = "Scalar /gi";
+ pos = 0;
+ ok /ABC/gi && $` eq "";
+ ok /ABC/gi && $` eq "abcfoo";
+ ok !/ABC/gi;
+
+ local $Message = "Scalar /g";
+ pos = 0;
+ ok /abc/g && $' eq "fooabcbar";
+ ok /abc/g && $' eq "bar";
+
+ $_ .= '';
+ my @x = /abc/g;
+ iseq @x, 2, "/g reset after assignment";
+ }
+
+ {
+ local $Message = '/g, \G and pos';
+ $_ = "abdc";
+ pos $_ = 2;
+ /\Gc/gc;
+ iseq pos $_, 2;
+ /\Gc/g;
+ ok !defined pos $_;
+ }
+
+ {
+ local $Message = '(?{ })';
+ our $out = 1;
+ 'abc' =~ m'a(?{ $out = 2 })b';
+ iseq $out, 2;
+
+ $out = 1;
+ 'abc' =~ m'a(?{ $out = 3 })c';
+ iseq $out, 1;
+ }
+
+
+ {
+ $_ = 'foobar1 bar2 foobar3 barfoobar5 foobar6';
+ my @out = /(?<!foo)bar./g;
+ iseq "@out", 'bar2 barf', "Negative lookbehind";
+ }
+
+ {
+ local $Message = "REG_INFTY tests";
+ # Tests which depend on REG_INFTY
+ $::reg_infty = $Config {reg_infty} // 32767;
+ $::reg_infty_m = $::reg_infty - 1;
+ $::reg_infty_p = $::reg_infty + 1;
+ $::reg_infty_m = $::reg_infty_m; # Surpress warning.
+
+ # As well as failing if the pattern matches do unexpected things, the
+ # next three tests will fail if you should have picked up a lower-than-
+ # default value for $reg_infty from Config.pm, but have not.
+
+ eval_ok q (('aaa' =~ /(a{1,$::reg_infty_m})/)[0] eq 'aaa');
+ eval_ok q (('a' x $::reg_infty_m) =~ /a{$::reg_infty_m}/);
+ eval_ok q (('a' x ($::reg_infty_m - 1)) !~ /a{$::reg_infty_m}/);
+ eval "'aaa' =~ /a{1,$::reg_infty}/";
+ ok $@ =~ /^\QQuantifier in {,} bigger than/;
+ eval "'aaa' =~ /a{1,$::reg_infty_p}/";
+ ok $@ =~ /^\QQuantifier in {,} bigger than/;
+ }
+
+ {
+ # Poke a couple more parse failures
+ my $context = 'x' x 256;
+ eval qq("${context}y" =~ /(?<=$context)y/);
+ ok $@ =~ /^\QLookbehind longer than 255 not/, "Lookbehind limit";
+ }
+
+ {
+ # Long Monsters
+ local $Message = "Long monster";
+ for my $l (125, 140, 250, 270, 300000, 30) { # Ordered to free memory
+ my $a = 'a' x $l;
+ local $Error = "length = $l";
+ ok "ba$a=" =~ /a$a=/;
+ nok "b$a=" =~ /a$a=/;
+ ok "b$a=" =~ /ba+=/;
+
+ ok "ba$a=" =~ /b(?:a|b)+=/;
+ }
+ }
+
+
+ {
+ # 20000 nodes, each taking 3 words per string, and 1 per branch
+ my $long_constant_len = join '|', 12120 .. 32645;
+ my $long_var_len = join '|', 8120 .. 28645;
+ my %ans = ( 'ax13876y25677lbc' => 1,
+ 'ax13876y25677mcb' => 0, # not b.
+ 'ax13876y35677nbc' => 0, # Num too big
+ 'ax13876y25677y21378obc' => 1,
+ 'ax13876y25677y21378zbc' => 0, # Not followed by [k-o]
+ 'ax13876y25677y21378y21378kbc' => 1,
+ 'ax13876y25677y21378y21378kcb' => 0, # Not b.
+ 'ax13876y25677y21378y21378y21378kbc' => 0, # 5 runs
+ );
+
+ local $Message = "20000 nodes";
+ for (keys %ans) {
+ local $Error = "const-len '$_'";
+ ok !($ans{$_} xor /a(?=([yx]($long_constant_len)){2,4}[k-o]).*b./o);
+
+ local $Error = "var-len '$_'";
+ ok !($ans{$_} xor /a(?=([yx]($long_var_len)){2,4}[k-o]).*b./o);
+ }
+ }
+
+ {
+ local $Message = "Complicated backtracking";
+ $_ = " a (bla()) and x(y b((l)u((e))) and b(l(e)e)e";
+ my $expect = "(bla()) ((l)u((e))) (l(e)e)";
+
+ use vars '$c';
+ sub matchit {
+ m/
+ (
+ \(
+ (?{ $c = 1 }) # Initialize
+ (?:
+ (?(?{ $c == 0 }) # PREVIOUS iteration was OK, stop the loop
+ (?!
+ ) # Fail: will unwind one iteration back
+ )
+ (?:
+ [^()]+ # Match a big chunk
+ (?=
+ [()]
+ ) # Do not try to match subchunks
+ |
+ \(
+ (?{ ++$c })
+ |
+ \)
+ (?{ --$c })
+ )
+ )+ # This may not match with different subblocks
+ )
+ (?(?{ $c != 0 })
+ (?!
+ ) # Fail
+ ) # Otherwise the chunk 1 may succeed with $c>0
+ /xg;
+ }
+
+ my @ans = ();
+ my $res;
+ push @ans, $res while $res = matchit;
+ iseq "@ans", "1 1 1";
+
+ @ans = matchit;
+ iseq "@ans", $expect;
+
+ local $Message = "Recursion with (??{ })";
+ our $matched;
+ $matched = qr/\((?:(?>[^()]+)|(??{$matched}))*\)/;
+
+ @ans = my @ans1 = ();
+ push (@ans, $res), push (@ans1, $&) while $res = m/$matched/g;
+
+ iseq "@ans", "1 1 1";
+ iseq "@ans1", $expect;
+
+ @ans = m/$matched/g;
+ iseq "@ans", $expect;
+
+ }
+
+ {
+ ok "abc" =~ /^(??{"a"})b/, '"abc" =~ /^(??{"a"})b/';
+ }
+
+ {
+ my @ans = ('a/b' =~ m%(.*/)?(.*)%); # Stack may be bad
+ iseq "@ans", 'a/ b', "Stack may be bad";
+ }
+
+ {
+ local $Message = "Eval-group not allowed at runtime";
+ my $code = '{$blah = 45}';
+ our $blah = 12;
+ eval { /(?$code)/ };
+ ok $@ && $@ =~ /not allowed at runtime/ && $blah == 12;
+
+ for $code ('{$blah = 45}','=xx') {
+ $blah = 12;
+ my $res = eval { "xx" =~ /(?$code)/o };
+ no warnings 'uninitialized';
+ local $Error = "'$@', '$res', '$blah'";
+ if ($code eq '=xx') {
+ ok !$@ && $res;
+ }
+ else {
+ ok $@ && $@ =~ /not allowed at runtime/ && $blah == 12;
+ }
+ }
+
+ $code = '{$blah = 45}';
+ $blah = 12;
+ eval "/(?$code)/";
+ iseq $blah, 45;
+
+ $blah = 12;
+ /(?{$blah = 45})/;
+ iseq $blah, 45;
+ }
+
+ {
+ local $Message = "Pos checks";
+ my $x = 'banana';
+ $x =~ /.a/g;
+ iseq pos ($x), 2;
+
+ $x =~ /.z/gc;
+ iseq pos ($x), 2;
+
+ sub f {
+ my $p = $_[0];
+ return $p;
+ }
+
+ $x =~ /.a/g;
+ iseq f (pos ($x)), 4;
+ }
+
+ {
+ local $Message = 'Checking $^R';
+ our $x = $^R = 67;
+ 'foot' =~ /foo(?{$x = 12; 75})[t]/;
+ iseq $^R, 75;
+
+ $x = $^R = 67;
+ 'foot' =~ /foo(?{$x = 12; 75})[xy]/;
+ ok $^R eq '67' && $x eq '12';
+
+ $x = $^R = 67;
+ 'foot' =~ /foo(?{ $^R + 12 })((?{ $x = 12; $^R + 17 })[xy])?/;
+ ok $^R eq '79' && $x eq '12';
+ }
+
+ {
+ iseq qr/\b\v$/i, '(?i-xsm:\b\v$)', 'qr/\b\v$/i';
+ iseq qr/\b\v$/s, '(?s-xim:\b\v$)', 'qr/\b\v$/s';
+ iseq qr/\b\v$/m, '(?m-xis:\b\v$)', 'qr/\b\v$/m';
+ iseq qr/\b\v$/x, '(?x-ism:\b\v$)', 'qr/\b\v$/x';
+ iseq qr/\b\v$/xism, '(?msix:\b\v$)', 'qr/\b\v$/xism';
+ iseq qr/\b\v$/, '(?-xism:\b\v$)', 'qr/\b\v$/';
+ }
+
+
+ {
+ local $Message = "Look around";
+ $_ = 'xabcx';
+ SKIP:
+ foreach my $ans ('', 'c') {
+ ok /(?<=(?=a)..)((?=c)|.)/g or skip "Match failed", 1;
+ iseq $1, $ans;
+ }
+ }
+
+ {
+ local $Message = "Empty clause";
+ $_ = 'a';
+ foreach my $ans ('', 'a', '') {
+ ok /^|a|$/g or skip "Match failed", 1;
+ iseq $&, $ans;
+ }
+ }
+
+ {
+ local $Message = "Prefixify";
+ sub prefixify {
+ SKIP: {
+ my ($v, $a, $b, $res) = @_;
+ ok $v =~ s/\Q$a\E/$b/ or skip "Match failed", 1;
+ iseq $v, $res;
+ }
+ }
+
+ prefixify ('/a/b/lib/arch', "/a/b/lib", 'X/lib', 'X/lib/arch');
+ prefixify ('/a/b/man/arch', "/a/b/man", 'X/man', 'X/man/arch');
+ }
+
+ {
+ $_ = 'var="foo"';
+ /(\")/;
+ ok $1 && /$1/, "Capture a quote";
+ }
+
+ {
+ local $Message = "Call code from qr //";
+ $a = qr/(?{++$b})/;
+ $b = 7;
+ ok /$a$a/ && $b eq '9';
+
+ $c="$a";
+ ok /$a$a/ && $b eq '11';
+
+ undef $@;
+ eval {/$c/};
+ ok $@ && $@ =~ /not allowed at runtime/;
+
+ use re "eval";
+ /$a$c$a/;
+ iseq $b, '14';
+
+ our $lex_a = 43;
+ our $lex_b = 17;
+ our $lex_c = 27;
+ my $lex_res = ($lex_b =~ qr/$lex_b(?{ $lex_c = $lex_a++ })/);
+
+ iseq $lex_res, 1;
+ iseq $lex_a, 44;
+ iseq $lex_c, 43;
+
+ no re "eval";
+ undef $@;
+ my $match = eval { /$a$c$a/ };
+ ok $@ && $@ =~ /Eval-group not allowed/ && !$match;
+ iseq $b, '14';
+
+ $lex_a = 2;
+ $lex_a = 43;
+ $lex_b = 17;
+ $lex_c = 27;
+ $lex_res = ($lex_b =~ qr/17(?{ $lex_c = $lex_a++ })/);
+
+ iseq $lex_res, 1;
+ iseq $lex_a, 44;
+ iseq $lex_c, 43;
+
+ }
+
+
+ {
+ no warnings 'closure';
+ local $Message = '(?{ $var } refers to package vars';
+ package aa;
+ our $c = 2;
+ $::c = 3;
+ '' =~ /(?{ $c = 4 })/;
+ main::iseq $c, 4;
+ main::iseq $::c, 3;
+ }
+
+
+ {
+ must_die 'q(a:[b]:) =~ /[x[:foo:]]/',
+ 'POSIX class \[:[^:]+:\] unknown in regex',
+ 'POSIX class [: :] must have valid name';
+
+ for my $d (qw [= .]) {
+ must_die "/[[${d}foo${d}]]/",
+ "\QPOSIX syntax [$d $d] is reserved for future extensions",
+ "POSIX syntax [[$d $d]] is an error";
+ }
+ }
+
+
+ {
+ # test if failure of patterns returns empty list
+ local $Message = "Failed pattern returns empty list";
+ $_ = 'aaa';
+ @_ = /bbb/;
+ iseq "@_", "";
+
+ @_ = /bbb/g;
+ iseq "@_", "";
+
+ @_ = /(bbb)/;
+ iseq "@_", "";
+
+ @_ = /(bbb)/g;
+ iseq "@_", "";
+ }
+
+
+ {
+ local $Message = '@- and @+ tests';
+
+ /a(?=.$)/;
+ iseq $#+, 0;
+ iseq $#-, 0;
+ iseq $+ [0], 2;
+ iseq $- [0], 1;
+ ok !defined $+ [1] && !defined $- [1] &&
+ !defined $+ [2] && !defined $- [2];
+
+ /a(a)(a)/;
+ iseq $#+, 2;
+ iseq $#-, 2;
+ iseq $+ [0], 3;
+ iseq $- [0], 0;
+ iseq $+ [1], 2;
+ iseq $- [1], 1;
+ iseq $+ [2], 3;
+ iseq $- [2], 2;
+ ok !defined $+ [3] && !defined $- [3] &&
+ !defined $+ [4] && !defined $- [4];
+
+
+ /.(a)(b)?(a)/;
+ iseq $#+, 3;
+ iseq $#-, 3;
+ iseq $+ [1], 2;
+ iseq $- [1], 1;
+ iseq $+ [3], 3;
+ iseq $- [3], 2;
+ ok !defined $+ [2] && !defined $- [2] &&
+ !defined $+ [4] && !defined $- [4];
+
+
+ /.(a)/;
+ iseq $#+, 1;
+ iseq $#-, 1;
+ iseq $+ [0], 2;
+ iseq $- [0], 0;
+ iseq $+ [1], 2;
+ iseq $- [1], 1;
+ ok !defined $+ [2] && !defined $- [2] &&
+ !defined $+ [3] && !defined $- [3];
+
+ /.(a)(ba*)?/;
+ iseq $#+, 2;
+ iseq $#-, 1;
+ }
+
+
+ {
+ local $DiePattern = '^Modification of a read-only value attempted';
+ local $Message = 'Elements of @- and @+ are read-only';
+ must_die '$+[0] = 13';
+ must_die '$-[0] = 13';
+ must_die '@+ = (7, 6, 5)';
+ must_die '@- = qw (foo bar)';
+ }
+
+
+ {
+ local $Message = '\G testing';
+ $_ = 'aaa';
+ pos = 1;
+ my @a = /\Ga/g;
+ iseq "@a", "a a";
+
+ my $str = 'abcde';
+ pos $str = 2;
+ ok $str !~ /^\G/;
+ ok $str !~ /^.\G/;
+ ok $str =~ /^..\G/;
+ ok $str !~ /^...\G/;
+ ok $str =~ /\G../ && $& eq 'cd';
+
+ local $TODO = $running_as_thread;
+ ok $str =~ /.\G./ && $& eq 'bc';
+ }
+
+
+ {
+ local $Message = 'pos inside (?{ })';
+ my $str = 'abcde';
+ our ($foo, $bar);
+ ok $str =~ /b(?{$foo = $_; $bar = pos})c/;
+ iseq $foo, $str;
+ iseq $bar, 2;
+ ok !defined pos ($str);
+
+ undef $foo;
+ undef $bar;
+ pos $str = undef;
+ ok $str =~ /b(?{$foo = $_; $bar = pos})c/g;
+ iseq $foo, $str;
+ iseq $bar, 2;
+ iseq pos ($str), 3;
+
+ $_ = $str;
+ undef $foo;
+ undef $bar;
+ ok /b(?{$foo = $_; $bar = pos})c/;
+ iseq $foo, $str;
+ iseq $bar, 2;
+
+ undef $foo;
+ undef $bar;
+ ok /b(?{$foo = $_; $bar = pos})c/g;
+ iseq $foo, $str;
+ iseq $bar, 2;
+ iseq pos, 3;
+
+ undef $foo;
+ undef $bar;
+ pos = undef;
+ 1 while /b(?{$foo = $_; $bar = pos})c/g;
+ iseq $foo, $str;
+ iseq $bar, 2;
+ ok !defined pos;
+
+ undef $foo;
+ undef $bar;
+ $_ = 'abcde|abcde';
+ ok s/b(?{$foo = $_; $bar = pos})c/x/g;
+ iseq $foo, 'abcde|abcde';
+ iseq $bar, 8;
+ iseq $_, 'axde|axde';
+
+ # List context:
+ $_ = 'abcde|abcde';
+ our @res;
+ () = /([ace]).(?{push @res, $1,$2})([ce])(?{push @res, $1,$2})/g;
+ @res = map {defined $_ ? "'$_'" : 'undef'} @res;
+ iseq "@res", "'a' undef 'a' 'c' 'e' undef 'a' undef 'a' 'c'";
+
+ @res = ();
+ () = /([ace]).(?{push @res, $`,$&,$'})([ce])(?{push @res, $`,$&,$'})/g;
+ @res = map {defined $_ ? "'$_'" : 'undef'} @res;
+ iseq "@res", "'' 'ab' 'cde|abcde' " .
+ "'' 'abc' 'de|abcde' " .
+ "'abcd' 'e|' 'abcde' " .
+ "'abcde|' 'ab' 'cde' " .
+ "'abcde|' 'abc' 'de'" ;
+ }
+
+
+ {
+ local $Message = '\G anchor checks';
+ my $foo = 'aabbccddeeffgg';
+ pos ($foo) = 1;
+ {
+ local $TODO = $running_as_thread;
+ no warnings 'uninitialized';
+ ok $foo =~ /.\G(..)/g;
+ iseq $1, 'ab';
+
+ pos ($foo) += 1;
+ ok $foo =~ /.\G(..)/g;
+ iseq $1, 'cc';
+
+ pos ($foo) += 1;
+ ok $foo =~ /.\G(..)/g;
+ iseq $1, 'de';
+
+ ok $foo =~ /\Gef/g;
+ }
+
+ undef pos $foo;
+ ok $foo =~ /\G(..)/g;
+ iseq $1, 'aa';
+
+ ok $foo =~ /\G(..)/g;
+ iseq $1, 'bb';
+
+ pos ($foo) = 5;
+ ok $foo =~ /\G(..)/g;
+ iseq $1, 'cd';
+ }
+
+
+ {
+ $_ = '123x123';
+ my @res = /(\d*|x)/g;
+ local $" = '|';
+ iseq "@res", "123||x|123|", "0 match in alternation";
+ }
+
+
+ {
+ local $Message = "Match against temporaries (created via pp_helem())" .
+ " is safe";
+ ok {foo => "bar\n" . $^X} -> {foo} =~ /^(.*)\n/g;
+ iseq $1, "bar";
+ }
+
+
+ {
+ local $Message = 'package $i inside (?{ }), ' .
+ 'saved substrings and changing $_';
+ our @a = qw [foo bar];
+ our @b = ();
+ s/(\w)(?{push @b, $1})/,$1,/g for @a;
+ iseq "@b", "f o o b a r";
+ iseq "@a", ",f,,o,,o, ,b,,a,,r,";
+
+ local $Message = 'lexical $i inside (?{ }), ' .
+ 'saved substrings and changing $_';
+ no warnings 'closure';
+ my @c = qw [foo bar];
+ my @d = ();
+ s/(\w)(?{push @d, $1})/,$1,/g for @c;
+ iseq "@d", "f o o b a r";
+ iseq "@c", ",f,,o,,o, ,b,,a,,r,";
+ }
+
+
+ {
+ local $Message = 'Brackets';
+ our $brackets;
+ $brackets = qr {
+ { (?> [^{}]+ | (??{ $brackets }) )* }
+ }x;
+
+ ok "{{}" =~ $brackets;
+ iseq $&, "{}";
+ ok "something { long { and } hairy" =~ $brackets;
+ iseq $&, "{ and }";
+ ok "something { long { and } hairy" =~ m/((??{ $brackets }))/;
+ iseq $&, "{ and }";
+ }
+
+
+ {
+ $_ = "a-a\nxbb";
+ pos = 1;
+ nok m/^-.*bb/mg, '$_ = "a-a\nxbb"; m/^-.*bb/mg';
+ }
+
+
+ {
+ local $Message = '\G anchor checks';
+ my $text = "aaXbXcc";
+ pos ($text) = 0;
+ ok $text !~ /\GXb*X/g;
+ }
+
+
+ {
+ $_ = "xA\n" x 500;
+ nok /^\s*A/m, '$_ = "xA\n" x 500; /^\s*A/m"';
+
+ my $text = "abc dbf";
+ my @res = ($text =~ /.*?(b).*?\b/g);
+ iseq "@res", "b b", '\b is not special';
+ }
+
+
+ {
+ local $Message = '\S, [\S], \s, [\s]';
+ my @a = map chr, 0 .. 255;
+ my @b = grep /\S/, @a;
+ my @c = grep /[^\s]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\S/, @a;
+ @c = grep /[\S]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\s/, @a;
+ @c = grep /[^\S]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\s/, @a;
+ @c = grep /[\s]/, @a;
+ iseq "@b", "@c";
+ }
+ {
+ local $Message = '\D, [\D], \d, [\d]';
+ my @a = map chr, 0 .. 255;
+ my @b = grep /\D/, @a;
+ my @c = grep /[^\d]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\D/, @a;
+ @c = grep /[\D]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\d/, @a;
+ @c = grep /[^\D]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\d/, @a;
+ @c = grep /[\d]/, @a;
+ iseq "@b", "@c";
+ }
+ {
+ local $Message = '\W, [\W], \w, [\w]';
+ my @a = map chr, 0 .. 255;
+ my @b = grep /\W/, @a;
+ my @c = grep /[^\w]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\W/, @a;
+ @c = grep /[\W]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\w/, @a;
+ @c = grep /[^\W]/, @a;
+ iseq "@b", "@c";
+
+ @b = grep /\w/, @a;
+ @c = grep /[\w]/, @a;
+ iseq "@b", "@c";
+ }
+
+
+ {
+ # see if backtracking optimization works correctly
+ local $Message = 'Backtrack optimization';
+ ok "\n\n" =~ /\n $ \n/x;
+ ok "\n\n" =~ /\n* $ \n/x;
+ ok "\n\n" =~ /\n+ $ \n/x;
+ ok "\n\n" =~ /\n? $ \n/x;
+ ok "\n\n" =~ /\n*? $ \n/x;
+ ok "\n\n" =~ /\n+? $ \n/x;
+ ok "\n\n" =~ /\n?? $ \n/x;
+ ok "\n\n" !~ /\n*+ $ \n/x;
+ ok "\n\n" !~ /\n++ $ \n/x;
+ ok "\n\n" =~ /\n?+ $ \n/x;
+ }
+
+
+ {
+ package S;
+ use overload '""' => sub {'Object S'};
+ sub new {bless []}
+
+ local $Message = "Ref stringification";
+ ::ok do { \my $v} =~ /^SCALAR/, "Scalar ref stringification";
+ ::ok do {\\my $v} =~ /^REF/, "Ref ref stringification";
+ ::ok [] =~ /^ARRAY/, "Array ref stringification";
+ ::ok {} =~ /^HASH/, "Hash ref stringification";
+ ::ok 'S' -> new =~ /^Object S/, "Object stringification";
+ }
+
+
+ {
+ local $Message = "Test result of match used as match";
+ ok 'a1b' =~ ('xyz' =~ /y/);
+ iseq $`, 'a';
+ ok 'a1b' =~ ('xyz' =~ /t/);
+ iseq $`, 'a';
+ }
+
+
+ {
+ local $Message = '"1" is not \s';
+ may_not_warn sub {ok ("1\n" x 102) !~ /^\s*\n/m};
+ }
+
+
+ {
+ local $Message = '\s, [[:space:]] and [[:blank:]]';
+ my %space = (spc => " ",
+ tab => "\t",
+ cr => "\r",
+ lf => "\n",
+ ff => "\f",
+ # There's no \v but the vertical tabulator seems miraculously
+ # be 11 both in ASCII and EBCDIC.
+ vt => chr(11),
+ false => "space");
+
+ my @space0 = sort grep {$space {$_} =~ /\s/ } keys %space;
+ my @space1 = sort grep {$space {$_} =~ /[[:space:]]/} keys %space;
+ my @space2 = sort grep {$space {$_} =~ /[[:blank:]]/} keys %space;
+
+ iseq "@space0", "cr ff lf spc tab";
+ iseq "@space1", "cr ff lf spc tab vt";
+ iseq "@space2", "spc tab";
+ }
+
+
+ {
+ local $BugId = '20000731.001';
+ ok "A \x{263a} B z C" =~ /A . B (??{ "z" }) C/,
+ "Match UTF-8 char in presense of (??{ })";
+ }
+
+
+ {
+ local $BugId = '20001021.005';
+ no warnings 'uninitialized';
+ ok undef =~ /^([^\/]*)(.*)$/, "Used to cause a SEGV";
+ }
+
+
+ SKIP:
+ {
+ local $Message = '\C matches octet';
+ $_ = "a\x{100}b";
+ ok /(.)(\C)(\C)(.)/ or skip q [\C doesn't match], 4;
+ iseq $1, "a";
+ if ($IS_ASCII) { # ASCII (or equivalent), should be UTF-8
+ iseq $2, "\xC4";
+ iseq $3, "\x80";
+ }
+ elsif ($IS_EBCDIC) { # EBCDIC (or equivalent), should be UTF-EBCDIC
+ iseq $2, "\x8C";
+ iseq $3, "\x41";
+ }
+ else {
+ SKIP: {
+ ok 0, "Unexpected platform", "ord ('A') = $ordA";
+ skip "Unexpected platform";
+ }
+ }
+ iseq $4, "b";
+ }
+
+
+ SKIP:
+ {
+ local $Message = '\C matches octet';
+ $_ = "\x{100}";
+ ok /(\C)/g or skip q [\C doesn't match], 2;
+ if ($IS_ASCII) {
+ iseq $1, "\xC4";
+ }
+ elsif ($IS_EBCDIC) {
+ iseq $1, "\x8C";
+ }
+ else {
+ ok 0, "Unexpected platform", "ord ('A') = $ordA";
+ }
+ ok /(\C)/g or skip q [\C doesn't match];
+ if ($IS_ASCII) {
+ iseq $1, "\x80";
+ }
+ elsif ($IS_EBCDIC) {
+ iseq $1, "\x41";
+ }
+ else {
+ ok 0, "Unexpected platform", "ord ('A') = $ordA";
+ }
+ }
+
+
+ {
+ # Japhy -- added 03/03/2001
+ () = (my $str = "abc") =~ /(...)/;
+ $str = "def";
+ iseq $1, "abc", 'Changing subject does not modify $1';
+ }
+
+
+ SKIP:
+ {
+ # The trick is that in EBCDIC the explicit numeric range should
+ # match (as also in non-EBCDIC) but the explicit alphabetic range
+ # should not match.
+ ok "\x8e" =~ /[\x89-\x91]/, '"\x8e" =~ /[\x89-\x91]/';
+ ok "\xce" =~ /[\xc9-\xd1]/, '"\xce" =~ /[\xc9-\xd1]/';
+
+ skip "Not an EBCDIC platform", 2 unless ord ('i') == 0x89 &&
+ ord ('J') == 0xd1;
+
+ # In most places these tests would succeed since \x8e does not
+ # in most character sets match 'i' or 'j' nor would \xce match
+ # 'I' or 'J', but strictly speaking these tests are here for
+ # the good of EBCDIC, so let's test these only there.
+ nok "\x8e" !~ /[i-j]/, '"\x8e" !~ /[i-j]/';
+ nok "\xce" !~ /[I-J]/, '"\xce" !~ /[I-J]/';
+ }
+
+
+ {
+ ok "\x{ab}" =~ /\x{ab}/, '"\x{ab}" =~ /\x{ab}/ ';
+ ok "\x{abcd}" =~ /\x{abcd}/, '"\x{abcd}" =~ /\x{abcd}/';
+ }
+
+
+ {
+ local $Message = 'bug id 20001008.001';
+
+ my @x = ("stra\337e 138", "stra\337e 138");
+ for (@x) {
+ ok s/(\d+)\s*([\w\-]+)/$1 . uc $2/e;
+ ok my ($latin) = /^(.+)(?:\s+\d)/;
+ iseq $latin, "stra\337e";
+ ok $latin =~ s/stra\337e/straße/;
+ #
+ # Previous code follows, but outcommented - there were no tests.
+ #
+ # $latin =~ s/stra\337e/straße/; # \303\237 after the 2nd a
+ # use utf8; # needed for the raw UTF-8
+ # $latin =~ s!(s)tr(?:aß|s+e)!$1tr.!; # \303\237 after the a
+ }
+ }
+
+
+ {
+ local $Message = 'Test \x escapes';
+ ok "ba\xd4c" =~ /([a\xd4]+)/ && $1 eq "a\xd4";
+ ok "ba\xd4c" =~ /([a\xd4]+)/ && $1 eq "a\x{d4}";
+ ok "ba\x{d4}c" =~ /([a\xd4]+)/ && $1 eq "a\x{d4}";
+ ok "ba\x{d4}c" =~ /([a\xd4]+)/ && $1 eq "a\xd4";
+ ok "ba\xd4c" =~ /([a\x{d4}]+)/ && $1 eq "a\xd4";
+ ok "ba\xd4c" =~ /([a\x{d4}]+)/ && $1 eq "a\x{d4}";
+ ok "ba\x{d4}c" =~ /([a\x{d4}]+)/ && $1 eq "a\x{d4}";
+ ok "ba\x{d4}c" =~ /([a\x{d4}]+)/ && $1 eq "a\xd4";
+ }
+
+
+ {
+ local $BugId = '20001028.003';
+
+ # Fist half of the bug.
+ local $Message = 'HEBREW ACCENT QADMA matched by .*';
+ my $X = chr (1448);
+ ok my ($Y) = $X =~ /(.*)/;
+ iseq $Y, v1448;
+ iseq length ($Y), 1;
+
+ # Second half of the bug.
+ $Message = 'HEBREW ACCENT QADMA in replacement';
+ $X = '';
+ $X =~ s/^/chr(1488)/e;
+ iseq length $X, 1;
+ iseq ord ($X), 1488;
+ }
+
+
+ {
+ local $BugId = '20001108.001';
+ local $Message = 'Repeated s///';
+ my $X = "Szab\x{f3},Bal\x{e1}zs";
+ my $Y = $X;
+ $Y =~ s/(B)/$1/ for 0 .. 3;
+ iseq $Y, $X;
+ iseq $X, "Szab\x{f3},Bal\x{e1}zs";
+ }
+
+
+ {
+ local $BugId = '20000517.001';
+ local $Message = 's/// on UTF-8 string';
+ my $x = "\x{100}A";
+ $x =~ s/A/B/;
+ iseq $x, "\x{100}B";
+ iseq length $x, 2;
+ }
+
+
+ {
+ local $BugId = '20001230.002';
+ local $Message = '\C and É';
+ ok "École" =~ /^\C\C(.)/ && $1 eq 'c';
+ ok "École" =~ /^\C\C(c)/;
+ }
+
+
+ SKIP:
+ {
+ local $Message = 'Match code points > 255';
+ $_ = "abc\x{100}\x{200}\x{300}\x{380}\x{400}defg";
+ ok /(.\x{300})./ or skip "No match", 4;
+ ok $` eq "abc\x{100}" && length ($`) == 4;
+ ok $& eq "\x{200}\x{300}\x{380}" && length ($&) == 3;
+ ok $' eq "\x{400}defg" && length ($') == 5;
+ ok $1 eq "\x{200}\x{300}" && length ($1) == 2;
+ }
+
+
+ {
+ # The original bug report had 'no utf8' here but that was irrelevant.
+ local $BugId = '20010306.008';
+ local $Message = "Don't dump core";
+ my $a = "a\x{1234}";
+ ok $a =~ m/\w/; # used to core dump.
+ }
+
+
+ {
+ local $BugId = '20010410.006';
+ local $Message = '/g in scalar context';
+ for my $rx ('/(.*?)\{(.*?)\}/csg',
+ '/(.*?)\{(.*?)\}/cg',
+ '/(.*?)\{(.*?)\}/sg',
+ '/(.*?)\{(.*?)\}/g',
+ '/(.+?)\{(.+?)\}/csg',) {
+ my $i = 0;
+ my $input = "a{b}c{d}";
+ eval <<" --";
+ while (eval \$input =~ $rx) {
+ \$i ++;
+ }
+ --
+ iseq $i, 2;
+ }
+ }
+
+
+ {
+ my $x = "\x{10FFFD}";
+ $x =~ s/(.)/$1/g;
+ ok ord($x) == 0x10FFFD && length($x) == 1, "From Robin Houston";
+ }
+
+
+ {
+ my %d = (
+ "7f" => [0, 0, 0],
+ "80" => [1, 1, 0],
+ "ff" => [1, 1, 0],
+ "100" => [0, 1, 1],
+ );
+ SKIP:
+ while (my ($code, $match) = each %d) {
+ local $Message = "Properties of \\x$code";
+ my $char = eval qq ["\\x{$code}"];
+ my $i = 0;
+ ok (($char =~ /[\x80-\xff]/) xor !$$match [$i ++]);
+ ok (($char =~ /[\x80-\x{100}]/) xor !$$match [$i ++]);
+ ok (($char =~ /[\x{100}]/) xor !$$match [$i ++]);
+ }
+ }
+
+
+ {
+ # From Japhy
+ local $Message;
+ must_warn 'qr/(?c)/', '^Useless \(\?c\)';
+ must_warn 'qr/(?-c)/', '^Useless \(\?-c\)';
+ must_warn 'qr/(?g)/', '^Useless \(\?g\)';
+ must_warn 'qr/(?-g)/', '^Useless \(\?-g\)';
+ must_warn 'qr/(?o)/', '^Useless \(\?o\)';
+ must_warn 'qr/(?-o)/', '^Useless \(\?-o\)';
+
+ # Now test multi-error regexes
+ must_warn 'qr/(?g-o)/', '^Useless \(\?g\).*\nUseless \(\?-o\)';
+ must_warn 'qr/(?g-c)/', '^Useless \(\?g\).*\nUseless \(\?-c\)';
+ # (?c) means (?g) error won't be thrown
+ must_warn 'qr/(?o-cg)/', '^Useless \(\?o\).*\nUseless \(\?-c\)';
+ must_warn 'qr/(?ogc)/', '^Useless \(\?o\).*\nUseless \(\?g\).*\n' .
+ 'Useless \(\?c\)';
+ }
+
+
+ {
+ local $Message = "/x tests";
+ $_ = "foo";
+ eval_ok <<" --";
+ /f
+ o\r
+ o
+ \$
+ /x
+ --
+ eval_ok <<" --";
+ /f
+ o
+ o
+ \$\r
+ /x
+ --
+ }
+
+
+ {
+ local $Message = "/o feature";
+ sub test_o {$_ [0] =~ /$_[1]/o; return $1}
+ iseq test_o ('abc', '(.)..'), 'a';
+ iseq test_o ('abc', '..(.)'), 'a';
+ }
+
+
+ {
+ local $BugId = "20010619.003";
+ # Amazingly vertical tabulator is the same in ASCII and EBCDIC.
+ for ("\n", "\t", "\014", "\r") {
+ ok !/[[:print:]]/, "'$_' not in [[:print:]]";
+ }
+ for (" ") {
+ ok /[[:print:]]/, "'$_' in [[:print:]]";
+ }
+ }
+
+
+ {
+ # Test basic $^N usage outside of a regex
+ local $Message = '$^N usage outside of a regex';
+ my $x = "abcdef";
+ ok ($x =~ /cde/ and !defined $^N);
+ ok ($x =~ /(cde)/ and $^N eq "cde");
+ ok ($x =~ /(c)(d)(e)/ and $^N eq "e");
+ ok ($x =~ /(c(d)e)/ and $^N eq "cde");
+ ok ($x =~ /(foo)|(c(d)e)/ and $^N eq "cde");
+ ok ($x =~ /(c(d)e)|(foo)/ and $^N eq "cde");
+ ok ($x =~ /(c(d)e)|(abc)/ and $^N eq "abc");
+ ok ($x =~ /(c(d)e)|(abc)x/ and $^N eq "cde");
+ ok ($x =~ /(c(d)e)(abc)?/ and $^N eq "cde");
+ ok ($x =~ /(?:c(d)e)/ and $^N eq "d");
+ ok ($x =~ /(?:c(d)e)(?:f)/ and $^N eq "d");
+ ok ($x =~ /(?:([abc])|([def]))*/ and $^N eq "f");
+ ok ($x =~ /(?:([ace])|([bdf]))*/ and $^N eq "f");
+ ok ($x =~ /(([ace])|([bd]))*/ and $^N eq "e");
+ {ok ($x =~ /(([ace])|([bdf]))*/ and $^N eq "f");}
+ ## Test to see if $^N is automatically localized -- it should now
+ ## have the value set in the previous test.
+ iseq $^N, "e", '$^N is automatically localized';
+
+ # Now test inside (?{ ... })
+ local $Message = '$^N usage inside (?{ ... })';
+ our ($y, $z);
+ ok ($x =~ /a([abc])(?{$y=$^N})c/ and $y eq "b");
+ ok ($x =~ /a([abc]+)(?{$y=$^N})d/ and $y eq "bc");
+ ok ($x =~ /a([abcdefg]+)(?{$y=$^N})d/ and $y eq "bc");
+ ok ($x =~ /(a([abcdefg]+)(?{$y=$^N})d)(?{$z=$^N})e/ and $y eq "bc"
+ and $z eq "abcd");
+ ok ($x =~ /(a([abcdefg]+)(?{$y=$^N})de)(?{$z=$^N})/ and $y eq "bc"
+ and $z eq "abcde");
+
+ }
+
+
+ SKIP:
+ {
+ ## Should probably put in tests for all the POSIX stuff,
+ ## but not sure how to guarantee a specific locale......
+
+ skip "Not an ASCII platform", 2 unless $IS_ASCII;
+ local $Message = 'Test [[:cntrl:]]';
+ my $AllBytes = join "" => map {chr} 0 .. 255;
+ (my $x = $AllBytes) =~ s/[[:cntrl:]]//g;
+ iseq $x, join "", map {chr} 0x20 .. 0x7E, 0x80 .. 0xFF;
+
+ ($x = $AllBytes) =~ s/[^[:cntrl:]]//g;
+ iseq $x, join "", map {chr} 0x00 .. 0x1F, 0x7F;
+ }
+
+
+ {
+ # With /s modifier UTF8 chars were interpreted as bytes
+ local $Message = "UTF-8 chars aren't bytes";
+ my $a = "Hello \x{263A} World";
+ my @a = ($a =~ /./gs);
+ iseq $#a, 12;
+ }
+
+
+ {
+ local $Message = '. matches \n with /s';
+ my $str1 = "foo\nbar";
+ my $str2 = "foo\n\x{100}bar";
+ my ($a, $b) = map {chr} $IS_ASCII ? (0xc4, 0x80) : (0x8c, 0x41);
+ my @a;
+ @a = $str1 =~ /./g; iseq @a, 6; iseq "@a", "f o o b a r";
+ @a = $str1 =~ /./gs; iseq @a, 7; iseq "@a", "f o o \n b a r";
+ @a = $str1 =~ /\C/g; iseq @a, 7; iseq "@a", "f o o \n b a r";
+ @a = $str1 =~ /\C/gs; iseq @a, 7; iseq "@a", "f o o \n b a r";
+ @a = $str2 =~ /./g; iseq @a, 7; iseq "@a", "f o o \x{100} b a r";
+ @a = $str2 =~ /./gs; iseq @a, 8; iseq "@a", "f o o \n \x{100} b a r";
+ @a = $str2 =~ /\C/g; iseq @a, 9; iseq "@a", "f o o \n $a $b b a r";
+ @a = $str2 =~ /\C/gs; iseq @a, 9; iseq "@a", "f o o \n $a $b b a r";
+ }
+
+
+ {
+ # [ID 20010814.004] pos() doesn't work when using =~m// in list context
+ local $BugId = '20010814.004';
+ $_ = "ababacadaea";
+ my $a = join ":", /b./gc;
+ my $b = join ":", /a./gc;
+ my $c = pos;
+ iseq "$a $b $c", 'ba:ba ad:ae 10', "pos() works with () = m//";
+ }
+
+
+ {
+ # [ID 20010407.006] matching utf8 return values from
+ # functions does not work
+ local $BugId = '20010407.006';
+ local $Message = 'UTF-8 return values from functions';
+ package ID_20010407_006;
+ sub x {"a\x{1234}"}
+ my $x = x;
+ my $y;
+ ::ok $x =~ /(..)/;
+ $y = $1;
+ ::ok length ($y) == 2 && $y eq $x;
+ ::ok x =~ /(..)/;
+ $y = $1;
+ ::ok length ($y) == 2 && $y eq $x;
+ }
+
+
+ {
+ no warnings 'digit';
+ # Check that \x## works. 5.6.1 and 5.005_03 fail some of these.
+ my $x;
+ $x = "\x4e" . "E";
+ ok ($x =~ /^\x4EE$/, "Check only 2 bytes of hex are matched.");
+
+ $x = "\x4e" . "i";
+ ok ($x =~ /^\x4Ei$/, "Check that invalid hex digit stops it (2)");
+
+ $x = "\x4" . "j";
+ ok ($x =~ /^\x4j$/, "Check that invalid hex digit stops it (1)");
+
+ $x = "\x0" . "k";
+ ok ($x =~ /^\xk$/, "Check that invalid hex digit stops it (0)");
+
+ $x = "\x0" . "x";
+ ok ($x =~ /^\xx$/, "\\xx isn't to be treated as \\0");
+
+ $x = "\x0" . "xa";
+ ok ($x =~ /^\xxa$/, "\\xxa isn't to be treated as \\xa");
+
+ $x = "\x9" . "_b";
+ ok ($x =~ /^\x9_b$/, "\\x9_b isn't to be treated as \\x9b");
+
+ # and now again in [] ranges
+
+ $x = "\x4e" . "E";
+ ok ($x =~ /^[\x4EE]{2}$/, "Check only 2 bytes of hex are matched.");
+
+ $x = "\x4e" . "i";
+ ok ($x =~ /^[\x4Ei]{2}$/, "Check that invalid hex digit stops it (2)");
+
+ $x = "\x4" . "j";
+ ok ($x =~ /^[\x4j]{2}$/, "Check that invalid hex digit stops it (1)");
+
+ $x = "\x0" . "k";
+ ok ($x =~ /^[\xk]{2}$/, "Check that invalid hex digit stops it (0)");
+
+ $x = "\x0" . "x";
+ ok ($x =~ /^[\xx]{2}$/, "\\xx isn't to be treated as \\0");
+
+ $x = "\x0" . "xa";
+ ok ($x =~ /^[\xxa]{3}$/, "\\xxa isn't to be treated as \\xa");
+
+ $x = "\x9" . "_b";
+ ok ($x =~ /^[\x9_b]{3}$/, "\\x9_b isn't to be treated as \\x9b");
+
+ # Check that \x{##} works. 5.6.1 fails quite a few of these.
+
+ $x = "\x9b";
+ ok ($x =~ /^\x{9_b}$/, "\\x{9_b} is to be treated as \\x9b");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^\x{9_b}y$/, "\\x{9_b} is to be treated as \\x9b (again)");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^\x{9b_}y$/, "\\x{9b_} is to be treated as \\x9b");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^\x{9_bq}y$/, "\\x{9_bc} is to be treated as \\x9b");
+
+ $x = "\x0" . "y";
+ ok ($x =~ /^\x{x9b}y$/, "\\x{x9b} is to be treated as \\x0");
+
+ $x = "\x0" . "y";
+ ok ($x =~ /^\x{0x9b}y$/, "\\x{0x9b} is to be treated as \\x0");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^\x{09b}y$/, "\\x{09b} is to be treated as \\x9b");
+
+ $x = "\x9b";
+ ok ($x =~ /^[\x{9_b}]$/, "\\x{9_b} is to be treated as \\x9b");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^[\x{9_b}y]{2}$/,
+ "\\x{9_b} is to be treated as \\x9b (again)");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^[\x{9b_}y]{2}$/, "\\x{9b_} is to be treated as \\x9b");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^[\x{9_bq}y]{2}$/, "\\x{9_bc} is to be treated as \\x9b");
+
+ $x = "\x0" . "y";
+ ok ($x =~ /^[\x{x9b}y]{2}$/, "\\x{x9b} is to be treated as \\x0");
+
+ $x = "\x0" . "y";
+ ok ($x =~ /^[\x{0x9b}y]{2}$/, "\\x{0x9b} is to be treated as \\x0");
+
+ $x = "\x9b" . "y";
+ ok ($x =~ /^[\x{09b}y]{2}$/, "\\x{09b} is to be treated as \\x9b");
+
+ }
+
+
+ {
+ # High bit bug -- japhy
+ my $x = "ab\200d";
+ ok $x =~ /.*?\200/, "High bit fine";
+ }
+
+
+ {
+ # The basic character classes and Unicode
+ ok "\x{0100}" =~ /\w/, 'LATIN CAPITAL LETTER A WITH MACRON in /\w/';
+ ok "\x{0660}" =~ /\d/, 'ARABIC-INDIC DIGIT ZERO in /\d/';
+ ok "\x{1680}" =~ /\s/, 'OGHAM SPACE MARK in /\s/';
+ }
+
+
+ {
+ local $Message = "Folding matches and Unicode";
+ ok "a\x{100}" =~ /A/i;
+ ok "A\x{100}" =~ /a/i;
+ ok "a\x{100}" =~ /a/i;
+ ok "A\x{100}" =~ /A/i;
+ ok "\x{101}a" =~ /\x{100}/i;
+ ok "\x{100}a" =~ /\x{100}/i;
+ ok "\x{101}a" =~ /\x{101}/i;
+ ok "\x{100}a" =~ /\x{101}/i;
+ ok "a\x{100}" =~ /A\x{100}/i;
+ ok "A\x{100}" =~ /a\x{100}/i;
+ ok "a\x{100}" =~ /a\x{100}/i;
+ ok "A\x{100}" =~ /A\x{100}/i;
+ ok "a\x{100}" =~ /[A]/i;
+ ok "A\x{100}" =~ /[a]/i;
+ ok "a\x{100}" =~ /[a]/i;
+ ok "A\x{100}" =~ /[A]/i;
+ ok "\x{101}a" =~ /[\x{100}]/i;
+ ok "\x{100}a" =~ /[\x{100}]/i;
+ ok "\x{101}a" =~ /[\x{101}]/i;
+ ok "\x{100}a" =~ /[\x{101}]/i;
+ }
+
+
+ {
+ use charnames ':full';
+ local $Message = "Folding 'LATIN LETTER A WITH GRAVE'";
+
+ my $lower = "\N{LATIN SMALL LETTER A WITH GRAVE}";
+ my $UPPER = "\N{LATIN CAPITAL LETTER A WITH GRAVE}";
+
+ ok $lower =~ m/$UPPER/i;
+ ok $UPPER =~ m/$lower/i;
+ ok $lower =~ m/[$UPPER]/i;
+ ok $UPPER =~ m/[$lower]/i;
+
+ local $Message = "Folding 'GREEK LETTER ALPHA WITH VRACHY'";
+
+ $lower = "\N{GREEK CAPITAL LETTER ALPHA WITH VRACHY}";
+ $UPPER = "\N{GREEK SMALL LETTER ALPHA WITH VRACHY}";
+
+ ok $lower =~ m/$UPPER/i;
+ ok $UPPER =~ m/$lower/i;
+ ok $lower =~ m/[$UPPER]/i;
+ ok $UPPER =~ m/[$lower]/i;
+
+ local $Message = "Folding 'LATIN LETTER Y WITH DIAERESIS'";
+
+ $lower = "\N{LATIN SMALL LETTER Y WITH DIAERESIS}";
+ $UPPER = "\N{LATIN CAPITAL LETTER Y WITH DIAERESIS}";
+
+ ok $lower =~ m/$UPPER/i;
+ ok $UPPER =~ m/$lower/i;
+ ok $lower =~ m/[$UPPER]/i;
+ ok $UPPER =~ m/[$lower]/i;
+ }
+
+
+ {
+ use charnames ':full';
+ local $PatchId = "13843";
+ local $Message = "GREEK CAPITAL LETTER SIGMA vs " .
+ "COMBINING GREEK PERISPOMENI";
+
+ my $SIGMA = "\N{GREEK CAPITAL LETTER SIGMA}";
+ my $char = "\N{COMBINING GREEK PERISPOMENI}";
+
+ may_not_warn sub {ok "_:$char:_" !~ m/_:$SIGMA:_/i};
+ }
+
+
+ {
+ local $Message = '\X';
+ use charnames ':full';
+
+ ok "a!" =~ /^(\X)!/ && $1 eq "a";
+ ok "\xDF!" =~ /^(\X)!/ && $1 eq "\xDF";
+ ok "\x{100}!" =~ /^(\X)!/ && $1 eq "\x{100}";
+ ok "\x{100}\x{300}!" =~ /^(\X)!/ && $1 eq "\x{100}\x{300}";
+ ok "\N{LATIN CAPITAL LETTER E}!" =~ /^(\X)!/ &&
+ $1 eq "\N{LATIN CAPITAL LETTER E}";
+ ok "\N{LATIN CAPITAL LETTER E}\N{COMBINING GRAVE ACCENT}!"
+ =~ /^(\X)!/ &&
+ $1 eq "\N{LATIN CAPITAL LETTER E}\N{COMBINING GRAVE ACCENT}";
+
+ local $Message = '\C and \X';
+ ok "!abc!" =~ /a\Cc/;
+ ok "!abc!" =~ /a\Xc/;
+ }
+
+
+ {
+ local $Message = "Final Sigma";
+
+ my $SIGMA = "\x{03A3}"; # CAPITAL
+ my $Sigma = "\x{03C2}"; # SMALL FINAL
+ my $sigma = "\x{03C3}"; # SMALL
+
+ ok $SIGMA =~ /$SIGMA/i;
+ ok $SIGMA =~ /$Sigma/i;
+ ok $SIGMA =~ /$sigma/i;
+
+ ok $Sigma =~ /$SIGMA/i;
+ ok $Sigma =~ /$Sigma/i;
+ ok $Sigma =~ /$sigma/i;
+
+ ok $sigma =~ /$SIGMA/i;
+ ok $sigma =~ /$Sigma/i;
+ ok $sigma =~ /$sigma/i;
+
+ ok $SIGMA =~ /[$SIGMA]/i;
+ ok $SIGMA =~ /[$Sigma]/i;
+ ok $SIGMA =~ /[$sigma]/i;
+
+ ok $Sigma =~ /[$SIGMA]/i;
+ ok $Sigma =~ /[$Sigma]/i;
+ ok $Sigma =~ /[$sigma]/i;
+
+ ok $sigma =~ /[$SIGMA]/i;
+ ok $sigma =~ /[$Sigma]/i;
+ ok $sigma =~ /[$sigma]/i;
+
+ local $Message = "More final Sigma";
+
+ my $S3 = "$SIGMA$Sigma$sigma";
+
+ ok ":$S3:" =~ /:(($SIGMA)+):/i && $1 eq $S3 && $2 eq $sigma;
+ ok ":$S3:" =~ /:(($Sigma)+):/i && $1 eq $S3 && $2 eq $sigma;
+ ok ":$S3:" =~ /:(($sigma)+):/i && $1 eq $S3 && $2 eq $sigma;
+
+ ok ":$S3:" =~ /:(([$SIGMA])+):/i && $1 eq $S3 && $2 eq $sigma;
+ ok ":$S3:" =~ /:(([$Sigma])+):/i && $1 eq $S3 && $2 eq $sigma;
+ ok ":$S3:" =~ /:(([$sigma])+):/i && $1 eq $S3 && $2 eq $sigma;
+ }
+
+
+ {
+ use charnames ':full';
+ local $Message = "Parlez-Vous " .
+ "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais?";
+
+ ok "Fran\N{LATIN SMALL LETTER C}ais" =~ /Fran.ais/ &&
+ $& eq "Francais";
+ ok "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~ /Fran.ais/ &&
+ $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais";
+ ok "Fran\N{LATIN SMALL LETTER C}ais" =~ /Fran\Cais/ &&
+ $& eq "Francais";
+ # COMBINING CEDILLA is two bytes when encoded
+ ok "Franc\N{COMBINING CEDILLA}ais" =~ /Franc\C\Cais/;
+ ok "Fran\N{LATIN SMALL LETTER C}ais" =~ /Fran\Xais/ &&
+ $& eq "Francais";
+ ok "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~ /Fran\Xais/ &&
+ $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais";
+ ok "Franc\N{COMBINING CEDILLA}ais" =~ /Fran\Xais/ &&
+ $& eq "Franc\N{COMBINING CEDILLA}ais";
+ ok "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais" =~
+ /Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais/ &&
+ $& eq "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais";
+ ok "Franc\N{COMBINING CEDILLA}ais" =~ /Franc\N{COMBINING CEDILLA}ais/ &&
+ $& eq "Franc\N{COMBINING CEDILLA}ais";
+
+ my @f = (
+ ["Fran\N{LATIN SMALL LETTER C}ais", "Francais"],
+ ["Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais",
+ "Fran\N{LATIN SMALL LETTER C WITH CEDILLA}ais"],
+ ["Franc\N{COMBINING CEDILLA}ais", "Franc\N{COMBINING CEDILLA}ais"],
+ );
+ foreach my $entry (@f) {
+ my ($subject, $match) = @$entry;
+ ok $subject =~ /Fran(?:c\N{COMBINING CEDILLA}?|
+ \N{LATIN SMALL LETTER C WITH CEDILLA})ais/x &&
+ $& eq $match;
+ }
+ }
+
+
+ {
+ local $Message = "Lingering (and useless) UTF8 flag doesn't mess up /i";
+ my $pat = "ABcde";
+ my $str = "abcDE\x{100}";
+ chop $str;
+ ok $str =~ /$pat/i;
+
+ $pat = "ABcde\x{100}";
+ $str = "abcDE";
+ chop $pat;
+ ok $str =~ /$pat/i;
+
+ $pat = "ABcde\x{100}";
+ $str = "abcDE\x{100}";
+ chop $pat;
+ chop $str;
+ ok $str =~ /$pat/i;
+ }
+
+
+ {
+ use charnames ':full';
+ local $Message = "LATIN SMALL LETTER SHARP S " .
+ "(\N{LATIN SMALL LETTER SHARP S})";
+
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /\N{LATIN SMALL LETTER SHARP S}/;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /\N{LATIN SMALL LETTER SHARP S}/i;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /[\N{LATIN SMALL LETTER SHARP S}]/;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /[\N{LATIN SMALL LETTER SHARP S}]/i;
+
+ ok "ss" =~ /\N{LATIN SMALL LETTER SHARP S}/i;
+ ok "SS" =~ /\N{LATIN SMALL LETTER SHARP S}/i;
+ ok "ss" =~ /[\N{LATIN SMALL LETTER SHARP S}]/i;
+ ok "SS" =~ /[\N{LATIN SMALL LETTER SHARP S}]/i;
+
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~ /ss/i;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~ /SS/i;
+
+ local $Message = "Unoptimized named sequence in class";
+ ok "ss" =~ /[\N{LATIN SMALL LETTER SHARP S}x]/i;
+ ok "SS" =~ /[\N{LATIN SMALL LETTER SHARP S}x]/i;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /[\N{LATIN SMALL LETTER SHARP S}x]/;
+ ok "\N{LATIN SMALL LETTER SHARP S}" =~
+ /[\N{LATIN SMALL LETTER SHARP S}x]/i;
+ }
+
+
+ {
+ # More whitespace: U+0085, U+2028, U+2029\n";
+
+ # U+0085, U+00A0 need to be forced to be Unicode, the \x{100} does that.
+ SKIP: {
+ skip "EBCDIC platform", 4 if $IS_EBCDIC;
+ # Do \x{0015} and \x{0041} match \s in EBCDIC?
+ ok "<\x{100}\x{0085}>" =~ /<\x{100}\s>/, '\x{0085} in \s';
+ ok "<\x{0085}>" =~ /<\v>/, '\x{0085} in \v';
+ ok "<\x{100}\x{00A0}>" =~ /<\x{100}\s>/, '\x{00A0} in \s';
+ ok "<\x{00A0}>" =~ /<\h>/, '\x{00A0} in \h';
+ }
+ my @h = map {sprintf "%05x" => $_} 0x01680, 0x0180E, 0x02000 .. 0x0200A,
+ 0x0202F, 0x0205F, 0x03000;
+ my @v = map {sprintf "%05x" => $_} 0x02028, 0x02029;
+
+ my @H = map {sprintf "%05x" => $_} 0x01361, 0x0200B, 0x02408, 0x02420,
+ 0x0303F, 0xE0020;
+ my @V = map {sprintf "%05x" => $_} 0x0008A .. 0x0008D, 0x00348, 0x10100,
+ 0xE005F, 0xE007C;
+
+ for my $hex (@h) {
+ my $str = eval qq ["<\\x{$hex}>"];
+ ok $str =~ /<\s>/, "\\x{$hex} in \\s";
+ ok $str =~ /<\h>/, "\\x{$hex} in \\h";
+ ok $str !~ /<\v>/, "\\x{$hex} not in \\v";
+ }
+
+ for my $hex (@v) {
+ my $str = eval qq ["<\\x{$hex}>"];
+ ok $str =~ /<\s>/, "\\x{$hex} in \\s";
+ ok $str =~ /<\v>/, "\\x{$hex} in \\v";
+ ok $str !~ /<\h>/, "\\x{$hex} not in \\h";
+ }
+
+ for my $hex (@H) {
+ my $str = eval qq ["<\\x{$hex}>"];
+ ok $str =~ /<\S>/, "\\x{$hex} in \\S";
+ ok $str =~ /<\H>/, "\\x{$hex} in \\H";
+ }
+
+ for my $hex (@V) {
+ my $str = eval qq ["<\\x{$hex}>"];
+ ok $str =~ /<\S>/, "\\x{$hex} in \\S";
+ ok $str =~ /<\V>/, "\\x{$hex} in \\V";
+ }
+ }
+
+
+ {
+ # . with /s should work on characters, as opposed to bytes
+ local $Message = ". with /s works on characters, not bytes";
+
+ my $s = "\x{e4}\x{100}";
+ # This is not expected to match: the point is that
+ # neither should we get "Malformed UTF-8" warnings.
+ may_not_warn sub {$s =~ /\G(.+?)\n/gcs}, "No 'Malformed UTF-8' warning";
+
+ my @c;
+ push @c => $1 while $s =~ /\G(.)/gs;
+
+ local $" = "";
+ iseq "@c", $s;
+
+ # Test only chars < 256
+ my $t1 = "Q003\n\n\x{e4}\x{f6}\n\nQ004\n\n\x{e7}";
+ my $r1 = "";
+ while ($t1 =~ / \G ( .+? ) \n\s+ ( .+? ) ( $ | \n\s+ ) /xgcs) {
+ $r1 .= $1 . $2;
+ }
+
+ my $t2 = $t1 . "\x{100}"; # Repeat with a larger char
+ my $r2 = "";
+ while ($t2 =~ / \G ( .+? ) \n\s+ ( .+? ) ( $ | \n\s+ ) /xgcs) {
+ $r2 .= $1 . $2;
+ }
+ $r2 =~ s/\x{100}//;
+
+ iseq $r1, $r2;
+ }
+
+
+ {
+ local $Message = "Unicode lookbehind";
+ ok "A\x{100}B" =~ /(?<=A.)B/;
+ ok "A\x{200}\x{300}B" =~ /(?<=A..)B/;
+ ok "\x{400}AB" =~ /(?<=\x{400}.)B/;
+ ok "\x{500}\x{600}B" =~ /(?<=\x{500}.)B/;
+
+ # Original code also contained:
+ # ok "\x{500\x{600}}B" =~ /(?<=\x{500}.)B/;
+ # but that looks like a typo.
+ }
+
+
+ {
+ local $Message = 'UTF-8 hash keys and /$/';
+ # http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters
+ # /2002-01/msg01327.html
+
+ my $u = "a\x{100}";
+ my $v = substr ($u, 0, 1);
+ my $w = substr ($u, 1, 1);
+ my %u = ($u => $u, $v => $v, $w => $w);
+ for (keys %u) {
+ my $m1 = /^\w*$/ ? 1 : 0;
+ my $m2 = $u {$_} =~ /^\w*$/ ? 1 : 0;
+ iseq $m1, $m2;
+ }
+ }
+
+
+ {
+ local $BugId = "20020124.005";
+ local $PatchId = "14795";
+ local $Message = "s///eg";
+
+ for my $char ("a", "\x{df}", "\x{100}") {
+ my $x = "$char b $char";
+ $x =~ s{($char)}{
+ "c" =~ /c/;
+ "x";
+ }ge;
+ iseq substr ($x, 0, 1), substr ($x, -1, 1);
+ }
+ }
+
+
+ {
+ local $Message = "No SEGV in s/// and UTF-8";
+ my $s = "s#\x{100}" x 4;
+ ok $s =~ s/[^\w]/ /g;
+ if ( $ENV{PERL_TEST_LEGACY_POSIX_CC} ) {
+ iseq $s, "s \x{100}" x 4;
+ }
+ else {
+ iseq $s, "s " x 4;
+ }
+ }
+
+
+ {
+ local $Message = "UTF-8 bug (maybe already known?)";
+ my $u = "foo";
+ $u =~ s/./\x{100}/g;
+ iseq $u, "\x{100}\x{100}\x{100}";
+
+ $u = "foobar";
+ $u =~ s/[ao]/\x{100}/g;
+ iseq $u, "f\x{100}\x{100}b\x{100}r";
+
+ $u =~ s/\x{100}/e/g;
+ iseq $u, "feeber";
+ }
+
+
+ {
+ local $Message = "UTF-8 bug with s///";
+ # check utf8/non-utf8 mixtures
+ # try to force all float/anchored check combinations
+
+ my $c = "\x{100}";
+ my $subst;
+ for my $re ("xx.*$c", "x.*$c$c", "$c.*xx", "$c$c.*x",
+ "xx.*(?=$c)", "(?=$c).*xx",) {
+ ok "xxx" !~ /$re/;
+ ok +($subst = "xxx") !~ s/$re//;
+ }
+ for my $re ("xx.*$c*", "$c*.*xx") {
+ ok "xxx" =~ /$re/;
+ ok +($subst = "xxx") =~ s/$re//;
+ iseq $subst, "";
+ }
+ for my $re ("xxy*", "y*xx") {
+ ok "xx$c" =~ /$re/;
+ ok +($subst = "xx$c") =~ s/$re//;
+ iseq $subst, $c;
+ ok "xy$c" !~ /$re/;
+ ok +($subst = "xy$c") !~ s/$re//;
+ }
+ for my $re ("xy$c*z", "x$c*yz") {
+ ok "xyz" =~ /$re/;
+ ok +($subst = "xyz") =~ s/$re//;
+ iseq $subst, "";
+ }
+ }
+
+
+ {
+ local $Message = "qr /.../x";
+ my $R = qr / A B C # D E/x;
+ ok "ABCDE" =~ $R && $& eq "ABC";
+ ok "ABCDE" =~ /$R/ && $& eq "ABC";
+ ok "ABCDE" =~ m/$R/ && $& eq "ABC";
+ ok "ABCDE" =~ /($R)/ && $1 eq "ABC";
+ ok "ABCDE" =~ m/($R)/ && $1 eq "ABC";
+ }
+
+
+ {
+ local $BugId = "20020412.005";
+ local $Message = "Correct pmop flags checked when empty pattern";
+
+ # Requires reuse of last successful pattern.
+ my $num = 123;
+ $num =~ /\d/;
+ for (0 .. 1) {
+ my $match = ?? + 0;
+ ok $match != $_, $Message,
+ sprintf "'match one' %s on %s iteration" =>
+ $match ? 'succeeded' : 'failed',
+ $_ ? 'second' : 'first';
+ }
+ $num =~ /(\d)/;
+ my $result = join "" => $num =~ //g;
+ iseq $result, $num;
+ }
+
+
+ {
+ local $BugId = '20020630.002';
+ local $Message = 'UTF-8 regex matches above 32k';
+ for (['byte', "\x{ff}"], ['utf8', "\x{1ff}"]) {
+ my ($type, $char) = @$_;
+ for my $len (32000, 32768, 33000) {
+ my $s = $char . "f" x $len;
+ my $r = $s =~ /$char([f]*)/gc;
+ ok $r, $Message, "<$type x $len>";
+ ok !$r || pos ($s) == $len + 1, $Message,
+ "<$type x $len>; pos = @{[pos $s]}";
+ }
+ }
+ }
+
+
+ {
+ our $a = bless qr /foo/ => 'Foo';
+ ok 'goodfood' =~ $a, "Reblessed qr // matches";
+ iseq $a, '(?-xism:foo)', "Reblessed qr // stringifies";
+ my $x = "\x{3fe}";
+ my $z = my $y = "\317\276"; # Byte representation of $x
+ $a = qr /$x/;
+ ok $x =~ $a, "UTF-8 interpolation in qr //";
+ ok "a$a" =~ $x, "Stringified qr // preserves UTF-8";
+ ok "a$x" =~ /^a$a\z/, "Interpolated qr // preserves UTF-8";
+ ok "a$x" =~ /^a(??{$a})\z/,
+ "Postponed interpolation of qr // preserves UTF-8";
+ {
+ local $BugId = '17776';
+ iseq length qr /##/x, 12, "## in qr // doesn't corrupt memory";
+ }
+ {
+ use re 'eval';
+ ok "$x$x" =~ /^$x(??{$x})\z/,
+ "Postponed UTF-8 string in UTF-8 re matches UTF-8";
+ ok "$y$x" =~ /^$y(??{$x})\z/,
+ "Postponed UTF-8 string in non-UTF-8 re matches UTF-8";
+ ok "$y$x" !~ /^$y(??{$y})\z/,
+ "Postponed non-UTF-8 string in non-UTF-8 re doesn't match UTF-8";
+ ok "$x$x" !~ /^$x(??{$y})\z/,
+ "Postponed non-UTF-8 string in UTF-8 re doesn't match UTF-8";
+ ok "$y$y" =~ /^$y(??{$y})\z/,
+ "Postponed non-UTF-8 string in non-UTF-8 re matches non-UTF8";
+ ok "$x$y" =~ /^$x(??{$y})\z/,
+ "Postponed non-UTF-8 string in UTF-8 re matches non-UTF8";
+
+ $y = $z; # Reset $y after upgrade.
+ ok "$x$y" !~ /^$x(??{$x})\z/,
+ "Postponed UTF-8 string in UTF-8 re doesn't match non-UTF-8";
+ ok "$y$y" !~ /^$y(??{$x})\z/,
+ "Postponed UTF-8 string in non-UTF-8 re doesn't match non-UTF-8";
+ }
+ }
+
+
+ {
+ local $PatchId = '18179';
+ my $s = "\x{100}" x 5;
+ my $ok = $s =~ /(\x{100}{4})/;
+ my ($ord, $len) = (ord $1, length $1);
+ ok $ok && $ord == 0x100 && $len == 4, "No panic: end_shift";
+ }
+
+
+ {
+ local $BugId = '15763';
+ our $a = "x\x{100}";
+ chop $a; # Leaves the UTF-8 flag
+ $a .= "y"; # 1 byte before 'y'.
+
+ ok $a =~ /^\C/, 'match one \C on 1-byte UTF-8';
+ ok $a =~ /^\C{1}/, 'match \C{1}';
+
+ ok $a =~ /^\Cy/, 'match \Cy';
+ ok $a =~ /^\C{1}y/, 'match \C{1}y';
+
+ ok $a !~ /^\C\Cy/, q {don't match two \Cy};
+ ok $a !~ /^\C{2}y/, q {don't match \C{2}y};
+
+ $a = "\x{100}y"; # 2 bytes before "y"
+
+ ok $a =~ /^\C/, 'match one \C on 2-byte UTF-8';
+ ok $a =~ /^\C{1}/, 'match \C{1}';
+ ok $a =~ /^\C\C/, 'match two \C';
+ ok $a =~ /^\C{2}/, 'match \C{2}';
+
+ ok $a =~ /^\C\C\C/, 'match three \C on 2-byte UTF-8 and a byte';
+ ok $a =~ /^\C{3}/, 'match \C{3}';
+
+ ok $a =~ /^\C\Cy/, 'match two \C';
+ ok $a =~ /^\C{2}y/, 'match \C{2}';
+
+ ok $a !~ /^\C\C\Cy/, q {don't match three \Cy};
+ ok $a !~ /^\C{2}\Cy/, q {don't match \C{2}\Cy};
+ ok $a !~ /^\C{3}y/, q {don't match \C{3}y};
+
+ $a = "\x{1000}y"; # 3 bytes before "y"
+
+ ok $a =~ /^\C/, 'match one \C on three-byte UTF-8';
+ ok $a =~ /^\C{1}/, 'match \C{1}';
+ ok $a =~ /^\C\C/, 'match two \C';
+ ok $a =~ /^\C{2}/, 'match \C{2}';
+ ok $a =~ /^\C\C\C/, 'match three \C';
+ ok $a =~ /^\C{3}/, 'match \C{3}';
+
+ ok $a =~ /^\C\C\C\C/, 'match four \C on three-byte UTF-8 and a byte';
+ ok $a =~ /^\C{4}/, 'match \C{4}';
+
+ ok $a =~ /^\C\C\Cy/, 'match three \Cy';
+ ok $a =~ /^\C{3}y/, 'match \C{3}y';
+
+ ok $a !~ /^\C\C\C\Cy/, q {don't match four \Cy};
+ ok $a !~ /^\C{4}y/, q {don't match \C{4}y};
+ }
+
+
+ {
+ local $\;
+ $_ = 'aaaaaaaaaa';
+ utf8::upgrade($_); chop $_; $\="\n";
+ ok /[^\s]+/, 'm/[^\s]/ utf8';
+ ok /[^\d]+/, 'm/[^\d]/ utf8';
+ ok +($a = $_, $_ =~ s/[^\s]+/./g), 's/[^\s]/ utf8';
+ ok +($a = $_, $a =~ s/[^\d]+/./g), 's/[^\s]/ utf8';
+ }
+
+
+ {
+ local $BugId = '15397';
+ local $Message = 'UTF-8 matching';
+ ok "\x{100}" =~ /\x{100}/;
+ ok "\x{100}" =~ /(\x{100})/;
+ ok "\x{100}" =~ /(\x{100}){1}/;
+ ok "\x{100}\x{100}" =~ /(\x{100}){2}/;
+ ok "\x{100}\x{100}" =~ /(\x{100})(\x{100})/;
+ }
+
+
+ {
+ local $BugId = '7471';
+ local $Message = 'Neither ()* nor ()*? sets $1 when matched 0 times';
+ local $_ = 'CD';
+ ok /(AB)*?CD/ && !defined $1;
+ ok /(AB)*CD/ && !defined $1;
+ }
+
+
+ {
+ local $BugId = '3547';
+ local $Message = "Caching shouldn't prevent match";
+ my $pattern = "^(b+?|a){1,2}c";
+ ok "bac" =~ /$pattern/ && $1 eq 'a';
+ ok "bbac" =~ /$pattern/ && $1 eq 'a';
+ ok "bbbac" =~ /$pattern/ && $1 eq 'a';
+ ok "bbbbac" =~ /$pattern/ && $1 eq 'a';
+ }
+
+
+
+ {
+ local $BugId = '18232';
+ local $Message = '$1 should keep UTF-8 ness';
+ ok "\x{100}" =~ /(.)/;
+ iseq $1, "\x{100}", '$1 is UTF-8';
+ { 'a' =~ /./; }
+ iseq $1, "\x{100}", '$1 is still UTF-8';
+ isneq $1, "\xC4\x80", '$1 is not non-UTF-8';
+ }
+
+
+ {
+ local $BugId = '19767';
+ local $Message = "Optimizer doesn't prematurely reject match";
+ use utf8;
+
+ my $attr = 'Name-1';
+ my $NormalChar = qr /[\p{IsDigit}\p{IsLower}\p{IsUpper}]/;
+ my $NormalWord = qr /${NormalChar}+?/;
+ my $PredNameHyphen = qr /^${NormalWord}(\-${NormalWord})*?$/;
+
+ $attr =~ /^$/;
+ ok $attr =~ $PredNameHyphen; # Original test.
+
+ "a" =~ m/[b]/;
+ ok "0" =~ /\p{N}+\z/; # Variant.
+ }
+
+
+ {
+ local $BugId = '20683';
+ local $Message = "(??{ }) doesn't return stale values";
+ our $p = 1;
+ foreach (1, 2, 3, 4) {
+ $p ++ if /(??{ $p })/
+ }
+ iseq $p, 5;
+
+ {
+ package P;
+ $a = 1;
+ sub TIESCALAR {bless []}
+ sub FETCH {$a ++}
+ }
+ tie $p, "P";
+ foreach (1, 2, 3, 4) {
+ /(??{ $p })/
+ }
+ iseq $p, 5;
+ }
+
+
+ {
+ # Subject: Odd regexp behavior
+ # From: Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>
+ # Date: Wed, 26 Feb 2003 16:53:12 +0000
+ # Message-Id: <E18o4nw-0008Ly-00@wisbech.cl.cam.ac.uk>
+ # To: perl-unicode@perl.org
+
+ local $Message = 'Markus Kuhn 2003-02-26';
+
+ my $x = "\x{2019}\nk";
+ ok $x =~ s/(\S)\n(\S)/$1 $2/sg;
+ ok $x eq "\x{2019} k";
+
+ $x = "b\nk";
+ ok $x =~ s/(\S)\n(\S)/$1 $2/sg;
+ ok $x eq "b k";
+
+ ok "\x{2019}" =~ /\S/;
+ }
+
+
+ {
+ local $BugId = '21411';
+ local $Message = "(??{ .. }) in split doesn't corrupt its stack";
+ our $i;
+ ok '-1-3-5-' eq join '', split /((??{$i++}))/, '-1-3-5-';
+ no warnings 'syntax';
+ @_ = split /(?{'WOW'})/, 'abc';
+ local $" = "|";
+ iseq "@_", "a|b|c";
+ }
+
+
+ {
+ # XXX DAPM 13-Apr-06. Recursive split is still broken. It's only luck it
+ # hasn't been crashing. Disable this test until it is fixed properly.
+ # XXX also check what it returns rather than just doing ok(1,...)
+ # split /(?{ split "" })/, "abc";
+ local $TODO = "Recursive split is still broken";
+ ok 0, 'cache_re & "(?{": it dumps core in 5.6.1 & 5.8.0';
+ }
+
+
+ {
+ ok "\x{100}\n" =~ /\x{100}\n$/, "UTF-8 length cache and fbm_compile";
+ }
+
+
+ {
+ package Str;
+ use overload q /""/ => sub {${$_ [0]};};
+ sub new {my ($c, $v) = @_; bless \$v, $c;}
+
+ package main;
+ $_ = Str -> new ("a\x{100}/\x{100}b");
+ ok join (":", /\b(.)\x{100}/g) eq "a:/", "re_intuit_start and PL_bostr";
+ }
+
+
+ {
+ local $BugId = '17757';
+ $_ = "code: 'x' { '...' }\n"; study;
+ my @x; push @x, $& while m/'[^\']*'/gx;
+ local $" = ":";
+ iseq "@x", "'x':'...'", "Parse::RecDescent triggered infinite loop";
+ }
+
+
+ {
+ my $re = qq /^([^X]*)X/;
+ utf8::upgrade ($re);
+ ok "\x{100}X" =~ /$re/, "S_cl_and ANYOF_UNICODE & ANYOF_INVERTED";
+ }
+
+
+ {
+ local $BugId = '22354';
+ sub func ($) {
+ ok "a\nb" !~ /^b/, "Propagated modifier; $_[0]";
+ ok "a\nb" =~ /^b/m, "Propagated modifier; $_[0] - with /m";
+ }
+ func "standalone";
+ $_ = "x"; s/x/func "in subst"/e;
+ $_ = "x"; s/x/func "in multiline subst"/em;
+
+ #
+ # Next two give 'panic: malloc'.
+ # Outcommented, using two TODOs.
+ #
+ local $TODO = 'panic: malloc';
+ local $Message = 'Postponed regexp and propaged modifier';
+ # ok 0 for 1 .. 2;
+ SKIP: {
+ skip "panic: malloc", 2;
+ $_ = "x"; /x(?{func "in regexp"})/;
+ $_ = "x"; /x(?{func "in multiline regexp"})/m;
+ }
+ }
+
+
+ {
+ local $BugId = '19049';
+ $_ = "abcdef\n";
+ my @x = m/./g;
+ iseq "abcde", $`, 'Global match sets $`';
+ }
+
+
+ {
+ ok "123\x{100}" =~ /^.*1.*23\x{100}$/,
+ 'UTF-8 + multiple floating substr';
+ }
+
+
+ {
+ local $Message = '<20030808193656.5109.1@llama.ni-s.u-net.com>';
+
+ # LATIN SMALL/CAPITAL LETTER A WITH MACRON
+ ok " \x{101}" =~ qr/\x{100}/i;
+
+ # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW
+ ok " \x{1E01}" =~ qr/\x{1E00}/i;
+
+ # DESERET SMALL/CAPITAL LETTER LONG I
+ ok " \x{10428}" =~ qr/\x{10400}/i;
+
+ # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'
+ ok " \x{1E01}x" =~ qr/\x{1E00}X/i;
+ }
+
+
+ {
+ # [perl #23769] Unicode regex broken on simple example
+ # regrepeat() didn't handle UTF-8 EXACT case right.
+ local $BugId = '23769';
+ my $Mess = 'regrepeat() handles UTF-8 EXACT case right';
+ local $Message = $Mess;
+
+ my $s = "\x{a0}\x{a0}\x{a0}\x{100}"; chop $s;
+
+ ok $s =~ /\x{a0}/;
+ ok $s =~ /\x{a0}+/;
+ ok $s =~ /\x{a0}\x{a0}/;
+
+ $Message = "$Mess (easy variant)";
+ ok "aaa\x{100}" =~ /(a+)/;
+ iseq $1, "aaa";
+
+ $Message = "$Mess (easy invariant)";
+ ok "aaa\x{100} " =~ /(a+?)/;
+ iseq $1, "a";
+
+ $Message = "$Mess (regrepeat variant)";
+ ok "\xa0\xa0\xa0\x{100} " =~ /(\xa0+?)/;
+ iseq $1, "\xa0";
+
+ $Message = "$Mess (regrepeat invariant)";
+ ok "\xa0\xa0\xa0\x{100}" =~ /(\xa0+)/;
+ iseq $1, "\xa0\xa0\xa0";
+
+ $Message = "$Mess (hard variant)";
+ ok "\xa0\xa1\xa0\xa1\xa0\xa1\x{100}" =~ /((?:\xa0\xa1)+?)/;
+ iseq $1, "\xa0\xa1";
+
+ $Message = "$Mess (hard invariant)";
+ ok "ababab\x{100} " =~ /((?:ab)+)/;
+ iseq $1, 'ababab';
+
+ ok "\xa0\xa1\xa0\xa1\xa0\xa1\x{100}" =~ /((?:\xa0\xa1)+)/;
+ iseq $1, "\xa0\xa1\xa0\xa1\xa0\xa1";
+
+ ok "ababab\x{100} " =~ /((?:ab)+?)/;
+ iseq $1, "ab";
+
+ $Message = "Don't match first byte of UTF-8 representation";
+ ok "\xc4\xc4\xc4" !~ /(\x{100}+)/;
+ ok "\xc4\xc4\xc4" !~ /(\x{100}+?)/;
+ ok "\xc4\xc4\xc4" !~ /(\x{100}++)/;
+ }
+
+
+ {
+ for (120 .. 130) {
+ my $head = 'x' x $_;
+ local $Message = q [Don't misparse \x{...} in regexp ] .
+ q [near 127 char EXACT limit];
+ for my $tail ('\x{0061}', '\x{1234}', '\x61') {
+ eval_ok qq ["$head$tail" =~ /$head$tail/];
+ }
+ local $Message = q [Don't misparse \N{...} in regexp ] .
+ q [near 127 char EXACT limit];
+ for my $tail ('\N{SNOWFLAKE}') {
+ eval_ok qq [use charnames ':full';
+ "$head$tail" =~ /$head$tail/];
+ }
+ }
+ }
+
+
+ {
+ # perl panic: pp_match start/end pointers
+ local $BugId = '25269';
+ iseq "a-bc", eval {my ($x, $y) = "bca" =~ /^(?=.*(a)).*(bc)/; "$x-$y"},
+ 'Captures can move backwards in string';
+ }
+
+
+ {
+ local $BugId = '27940'; # \cA not recognized in character classes
+ ok "a\cAb" =~ /\cA/, '\cA in pattern';
+ ok "a\cAb" =~ /[\cA]/, '\cA in character class';
+ ok "a\cAb" =~ /[\cA-\cB]/, '\cA in character class range';
+ ok "abc" =~ /[^\cA-\cB]/, '\cA in negated character class range';
+ ok "a\cBb" =~ /[\cA-\cC]/, '\cB in character class range';
+ ok "a\cCbc" =~ /[^\cA-\cB]/, '\cC in negated character class range';
+ ok "a\cAb" =~ /(??{"\cA"})/, '\cA in ??{} pattern';
+ ok "ab" !~ /a\cIb/x, '\cI in pattern';
+ }
+
+
+ {
+ # perl #28532: optional zero-width match at end of string is ignored
+ local $BugId = '28532';
+ ok "abc" =~ /^abc(\z)?/ && defined($1),
+ 'Optional zero-width match at end of string';
+ ok "abc" =~ /^abc(\z)??/ && !defined($1),
+ 'Optional zero-width match at end of string';
+ }
+
+
+
+ { # TRIE related
+ our @got = ();
+ "words" =~ /(word|word|word)(?{push @got, $1})s$/;
+ iseq @got, 1, "TRIE optimation";
+
+ @got = ();
+ "words" =~ /(word|word|word)(?{push @got,$1})s$/i;
+ iseq @got, 1,"TRIEF optimisation";
+
+ my @nums = map {int rand 1000} 1 .. 100;
+ my $re = "(" . (join "|", @nums) . ")";
+ $re = qr/\b$re\b/;
+
+ foreach (@nums) {
+ ok $_ =~ /$re/, "Trie nums";
+ }
+
+ $_ = join " ", @nums;
+ @got = ();
+ push @got, $1 while /$re/g;
+
+ my %count;
+ $count {$_} ++ for @got;
+ my $ok = 1;
+ for (@nums) {
+ $ok = 0 if --$count {$_} < 0;
+ }
+ ok $ok, "Trie min count matches";
+ }
+
+
+ {
+ # TRIE related
+ # LATIN SMALL/CAPITAL LETTER A WITH MACRON
+ ok "foba \x{101}foo" =~ qr/(foo|\x{100}foo|bar)/i &&
+ $1 eq "\x{101}foo",
+ "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH MACRON";
+
+ # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW
+ ok "foba \x{1E01}foo" =~ qr/(foo|\x{1E00}foo|bar)/i &&
+ $1 eq "\x{1E01}foo",
+ "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH RING BELOW";
+
+ # DESERET SMALL/CAPITAL LETTER LONG I
+ ok "foba \x{10428}foo" =~ qr/(foo|\x{10400}foo|bar)/i &&
+ $1 eq "\x{10428}foo",
+ "TRIEF + DESERET SMALL/CAPITAL LETTER LONG I";
+
+ # LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'
+ ok "foba \x{1E01}xfoo" =~ qr/(foo|\x{1E00}Xfoo|bar)/i &&
+ $1 eq "\x{1E01}xfoo",
+ "TRIEF + LATIN SMALL/CAPITAL LETTER A WITH RING BELOW + 'X'";
+
+ use charnames ':full';
+
+ my $s = "\N{LATIN SMALL LETTER SHARP S}";
+ ok "foba ba$s" =~ qr/(foo|Ba$s|bar)/i && $1 eq "ba$s",
+ "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
+ ok "foba ba$s" =~ qr/(Ba$s|foo|bar)/i && $1 eq "ba$s",
+ "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
+ ok "foba ba$s" =~ qr/(foo|bar|Ba$s)/i && $1 eq "ba$s",
+ "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
+
+ ok "foba ba$s" =~ qr/(foo|Bass|bar)/i && $1 eq "ba$s",
+ "TRIEF + LATIN SMALL LETTER SHARP S =~ ss";
+
+ ok "foba ba$s" =~ qr/(foo|BaSS|bar)/i && $1 eq "ba$s",
+ "TRIEF + LATIN SMALL LETTER SHARP S =~ SS";
+
+ ok "foba ba${s}pxySS$s$s" =~ qr/(b(?:a${s}t|a${s}f|a${s}p)[xy]+$s*)/i
+ && $1 eq "ba${s}pxySS$s$s",
+ "COMMON PREFIX TRIEF + LATIN SMALL LETTER SHARP S";
+ }
+
+
+ SKIP:
+ {
+ print "# Set PERL_SKIP_PSYCHO_TEST to skip this test\n";
+ my @normal = qw [the are some normal words];
+
+ skip "Skipped Psycho", 2 * @normal if $ENV {PERL_SKIP_PSYCHO_TEST};
+
+ local $" = "|";
+
+ my @psycho = (@normal, map chr $_, 255 .. 20000);
+ my $psycho1 = "@psycho";
+ for (my $i = @psycho; -- $i;) {
+ my $j = int rand (1 + $i);
+ @psycho [$i, $j] = @psycho [$j, $i];
+ }
+ my $psycho2 = "@psycho";
+
+ foreach my $word (@normal) {
+ ok $word =~ /($psycho1)/ && $1 eq $word, 'Psycho';
+ ok $word =~ /($psycho2)/ && $1 eq $word, 'Psycho';
+ }
+ }
+
+
+ {
+ local $BugId = '36207';
+ my $utf8 = "\xe9\x{100}"; chop $utf8;
+ my $latin1 = "\xe9";
+
+ ok $utf8 =~ /\xe9/i, "utf8/latin";
+ ok $utf8 =~ /$latin1/i, "utf8/latin runtime";
+ ok $utf8 =~ /(abc|\xe9)/i, "utf8/latin trie";
+ ok $utf8 =~ /(abc|$latin1)/i, "utf8/latin trie runtime";
+
+ ok "\xe9" =~ /$utf8/i, "latin/utf8";
+ ok "\xe9" =~ /(abc|$utf8)/i, "latin/utf8 trie";
+ ok $latin1 =~ /$utf8/i, "latin/utf8 runtime";
+ ok $latin1 =~ /(abc|$utf8)/i, "latin/utf8 trie runtime";
+ }
+
+
+ {
+ local $BugId = '37038';
+ my $s = "abcd";
+ $s =~ /(..)(..)/g;
+ $s = $1;
+ $s = $2;
+ iseq $2, 'cd',
+ "Assigning to original string does not corrupt match vars";
+ }
+
+
+ {
+ {
+ package wooosh;
+ sub gloople {"!"}
+ }
+ my $aeek = bless {} => 'wooosh';
+ eval_ok sub {$aeek -> gloople () =~ /(.)/g},
+ "//g match against return value of sub";
+
+ sub gloople {"!"}
+ eval_ok sub {gloople () =~ /(.)/g},
+ "26410 didn't affect sub calls for some reason";
+ }
+
+
+ {
+ local $TODO = "See changes 26925-26928, which reverted change 26410";
+ {
+ package lv;
+ our $var = "abc";
+ sub variable : lvalue {$var}
+ }
+ my $o = bless [] => 'lv';
+ my $f = "";
+ my $r = eval {
+ for (1 .. 2) {
+ $f .= $1 if $o -> variable =~ /(.)/g;
+ }
+ 1;
+ };
+ if ($r) {
+ iseq $f, "ab", "pos() retained between calls";
+ }
+ else {
+ local $TODO;
+ ok 0, "Code failed: $@";
+ }
+
+ our $var = "abc";
+ sub variable : lvalue {$var}
+ my $g = "";
+ my $s = eval {
+ for (1 .. 2) {
+ $g .= $1 if variable =~ /(.)/g;
+ }
+ 1;
+ };
+ if ($s) {
+ iseq $g, "ab", "pos() retained between calls";
+ }
+ else {
+ local $TODO;
+ ok 0, "Code failed: $@";
+ }
+ }
+
+
+ SKIP:
+ {
+ local $BugId = '37836';
+ skip "In EBCDIC" if $IS_EBCDIC;
+ no warnings 'utf8';
+ $_ = pack 'U0C2', 0xa2, 0xf8; # Ill-formed UTF-8
+ my $ret = 0;
+ eval_ok sub {!($ret = s/[\0]+//g)},
+ "Ill-formed UTF-8 doesn't match NUL in class";
+ }
+
+
+ {
+ # chr(65535) should be allowed in regexes
+ local $BugId = '38293';
+ no warnings 'utf8'; # To allow non-characters
+ my ($c, $r, $s);
+
+ $c = chr 0xffff;
+ $c =~ s/$c//g;
+ ok $c eq "", "U+FFFF, parsed as atom";
+
+ $c = chr 0xffff;
+ $r = "\\$c";
+ $c =~ s/$r//g;
+ ok $c eq "", "U+FFFF backslashed, parsed as atom";
+
+ $c = chr 0xffff;
+ $c =~ s/[$c]//g;
+ ok $c eq "", "U+FFFF, parsed in class";
+
+ $c = chr 0xffff;
+ $r = "[\\$c]";
+ $c =~ s/$r//g;
+ ok $c eq "", "U+FFFF backslashed, parsed in class";
+
+ $s = "A\x{ffff}B";
+ $s =~ s/\x{ffff}//i;
+ ok $s eq "AB", "U+FFFF, EXACTF";
+
+ $s = "\x{ffff}A";
+ $s =~ s/\bA//;
+ ok $s eq "\x{ffff}", "U+FFFF, BOUND";
+
+ $s = "\x{ffff}!";
+ $s =~ s/\B!//;
+ ok $s eq "\x{ffff}", "U+FFFF, NBOUND";
+ }
+
+
+ {
+ local $BugId = '39583';
+
+ # The printing characters
+ my @chars = ("A" .. "Z");
+ my $delim = ",";
+ my $size = 32771 - 4;
+ my $str = '';
+
+ # Create some random junk. Inefficient, but it works.
+ for (my $i = 0; $i < $size; $ i++) {
+ $str .= $chars [rand @chars];
+ }
+
+ $str .= ($delim x 4);
+ my $res;
+ my $matched;
+ ok $str =~ s/^(.*?)${delim}{4}//s, "Pattern matches";
+ iseq $str, "", "Empty string";
+ ok defined $1 && length ($1) == $size, '$1 is correct size';
+ }
+
+
+ {
+ local $BugId = '27940';
+ ok "\0-A" =~ /\c@-A/, '@- should not be interpolated in a pattern';
+ ok "\0\0A" =~ /\c@+A/, '@+ should not be interpolated in a pattern';
+ ok "X\@-A" =~ /X@-A/, '@- should not be interpolated in a pattern';
+ ok "X\@\@A" =~ /X@+A/, '@+ should not be interpolated in a pattern';
+
+ ok "X\0A" =~ /X\c@?A/, '\c@?';
+ ok "X\0A" =~ /X\c@*A/, '\c@*';
+ ok "X\0A" =~ /X\c@(A)/, '\c@(';
+ ok "X\0A" =~ /X(\c@)A/, '\c@)';
+ ok "X\0A" =~ /X\c@|ZA/, '\c@|';
+
+ ok "X\@A" =~ /X@?A/, '@?';
+ ok "X\@A" =~ /X@*A/, '@*';
+ ok "X\@A" =~ /X@(A)/, '@(';
+ ok "X\@A" =~ /X(@)A/, '@)';
+ ok "X\@A" =~ /X@|ZA/, '@|';
+
+ local $" = ','; # non-whitespace and non-RE-specific
+ ok 'abc' =~ /(.)(.)(.)/, 'The last successful match is bogus';
+ ok "A@+B" =~ /A@{+}B/, 'Interpolation of @+ in /@{+}/';
+ ok "A@-B" =~ /A@{-}B/, 'Interpolation of @- in /@{-}/';
+ ok "A@+B" =~ /A@{+}B/x, 'Interpolation of @+ in /@{+}/x';
+ ok "A@-B" =~ /A@{-}B/x, 'Interpolation of @- in /@{-}/x';
+ }
+
+
+ {
+ BEGIN {
+ unshift @INC, 'lib';
+ }
+ use Cname;
+
+ ok 'fooB' =~ /\N{foo}[\N{B}\N{b}]/, "Passthrough charname";
+ my $test = 1233;
+ #
+ # Why doesn't must_warn work here?
+ #
+ my $w;
+ local $SIG {__WARN__} = sub {$w .= "@_"};
+ eval 'q(xxWxx) =~ /[\N{WARN}]/';
+ ok $w && $w =~ /^Ignoring excess chars from/,
+ "Ignoring excess chars warning";
+
+ undef $w;
+ eval q [ok "\0" !~ /[\N{EMPTY-STR}XY]/,
+ "Zerolength charname in charclass doesn't match \\0"];
+ ok $w && $w =~ /^Ignoring zero length/,
+ 'Ignoring zero length \N{%} in character class warning';
+
+ ok 'AB' =~ /(\N{EVIL})/ && $1 eq 'A', 'Charname caching $1';
+ ok 'ABC' =~ /(\N{EVIL})/, 'Charname caching $1';
+ ok 'xy' =~ /x\N{EMPTY-STR}y/,
+ 'Empty string charname produces NOTHING node';
+ ok '' =~ /\N{EMPTY-STR}/,
+ 'Empty string charname produces NOTHING node';
+
+ }
+
+
+ {
+ use charnames ':full';
+
+ ok 'aabc' !~ /a\N{PLUS SIGN}b/, '/a\N{PLUS SIGN}b/ against aabc';
+ ok 'a+bc' =~ /a\N{PLUS SIGN}b/, '/a\N{PLUS SIGN}b/ against a+bc';
+
+ ok ' A B' =~ /\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}/,
+ 'Intermixed named and unicode escapes';
+ ok "\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}" =~
+ /\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}/,
+ 'Intermixed named and unicode escapes';
+ ok "\N{SPACE}\N{U+0041}\N{SPACE}\N{U+0042}" =~
+ /[\N{SPACE}\N{U+0041}][\N{SPACE}\N{U+0042}]/,
+ 'Intermixed named and unicode escapes';
+ }
+
+
+ {
+ our $brackets;
+ $brackets = qr{
+ { (?> [^{}]+ | (??{ $brackets }) )* }
+ }x;
+
+ ok "{b{c}d" !~ m/^((??{ $brackets }))/, "Bracket mismatch";
+
+ SKIP: {
+ our @stack = ();
+ my @expect = qw(
+ stuff1
+ stuff2
+ <stuff1>and<stuff2>
+ right
+ <right>
+ <<right>>
+ <<<right>>>
+ <<stuff1>and<stuff2>><<<<right>>>>
+ );
+
+ local $_ = '<<<stuff1>and<stuff2>><<<<right>>>>>';
+ ok /^(<((?:(?>[^<>]+)|(?1))*)>(?{push @stack, $2 }))$/,
+ "Recursion matches";
+ iseq @stack, @expect, "Right amount of matches"
+ or skip "Won't test individual results as count isn't equal",
+ 0 + @expect;
+ my $idx = 0;
+ foreach my $expect (@expect) {
+ iseq $stack [$idx], $expect,
+ "Expecting '$expect' at stack pos #$idx";
+ $idx ++;
+ }
+ }
+ }
+
+
+ {
+ my $s = '123453456';
+ $s =~ s/(?<digits>\d+)\k<digits>/$+{digits}/;
+ ok $s eq '123456', 'Named capture (angle brackets) s///';
+ $s = '123453456';
+ $s =~ s/(?'digits'\d+)\k'digits'/$+{digits}/;
+ ok $s eq '123456', 'Named capture (single quotes) s///';
+ }
+
+
+ {
+ my @ary = (
+ pack('U', 0x00F1), # n-tilde
+ '_'.pack('U', 0x00F1), # _ + n-tilde
+ 'c'.pack('U', 0x0327), # c + cedilla
+ pack('U*', 0x00F1, 0x0327), # n-tilde + cedilla
+ 'a'.pack('U', 0x00B2), # a + superscript two
+ pack('U', 0x0391), # ALPHA
+ pack('U', 0x0391).'2', # ALPHA + 2
+ pack('U', 0x0391).'_', # ALPHA + _
+ );
+
+ for my $uni (@ary) {
+ my ($r1, $c1, $r2, $c2) = eval qq {
+ use utf8;
+ scalar ("..foo foo.." =~ /(?'${uni}'foo) \\k'${uni}'/),
+ \$+{${uni}},
+ scalar ("..bar bar.." =~ /(?<${uni}>bar) \\k<${uni}>/),
+ \$+{${uni}};
+ };
+ ok $r1, "Named capture UTF (?'')";
+ ok defined $c1 && $c1 eq 'foo', "Named capture UTF \%+";
+ ok $r2, "Named capture UTF (?<>)";
+ ok defined $c2 && $c2 eq 'bar', "Named capture UTF \%+";
+ }
+ }
+
+
+ {
+ my $s = 'foo bar baz';
+ my (@k, @v, @fetch, $res);
+ my $count = 0;
+ my @names = qw ($+{A} $+{B} $+{C});
+ if ($s =~ /(?<A>foo)\s+(?<B>bar)?\s+(?<C>baz)/) {
+ while (my ($k, $v) = each (%+)) {
+ $count++;
+ }
+ @k = sort keys (%+);
+ @v = sort values (%+);
+ $res = 1;
+ push @fetch,
+ ["$+{A}", "$1"],
+ ["$+{B}", "$2"],
+ ["$+{C}", "$3"],
+ ;
+ }
+ foreach (0 .. 2) {
+ if ($fetch [$_]) {
+ iseq $fetch [$_] [0], $fetch [$_] [1], $names [$_];
+ } else {
+ ok 0, $names[$_];
+ }
+ }
+ iseq $res, 1, "'$s' =~ /(?<A>foo)\\s+(?<B>bar)?\\s+(?<C>baz)/";
+ iseq $count, 3, "Got 3 keys in %+ via each";
+ iseq 0 + @k, 3, 'Got 3 keys in %+ via keys';
+ iseq "@k", "A B C", "Got expected keys";
+ iseq "@v", "bar baz foo", "Got expected values";
+ eval '
+ no warnings "uninitialized";
+ print for $+ {this_key_doesnt_exist};
+ ';
+ ok !$@, 'lvalue $+ {...} should not throw an exception';
+ }
+
+
+ {
+ #
+ # Almost the same as the block above, except that the capture is nested.
+ #
+ local $BugId = '50496';
+ my $s = 'foo bar baz';
+ my (@k, @v, @fetch, $res);
+ my $count = 0;
+ my @names = qw ($+{A} $+{B} $+{C} $+{D});
+ if ($s =~ /(?<D>(?<A>foo)\s+(?<B>bar)?\s+(?<C>baz))/) {
+ while (my ($k,$v) = each(%+)) {
+ $count++;
+ }
+ @k = sort keys (%+);
+ @v = sort values (%+);
+ $res = 1;
+ push @fetch,
+ ["$+{A}", "$2"],
+ ["$+{B}", "$3"],
+ ["$+{C}", "$4"],
+ ["$+{D}", "$1"],
+ ;
+ }
+ foreach (0 .. 3) {
+ if ($fetch [$_]) {
+ iseq $fetch [$_] [0], $fetch [$_] [1], $names [$_];
+ } else {
+ ok 0, $names [$_];
+ }
+ }
+ iseq $res, 1, "'$s' =~ /(?<D>(?<A>foo)\\s+(?<B>bar)?\\s+(?<C>baz))/";
+ iseq $count, 4, "Got 4 keys in %+ via each";
+ iseq @k, 4, 'Got 4 keys in %+ via keys';
+ iseq "@k", "A B C D", "Got expected keys";
+ iseq "@v", "bar baz foo foo bar baz", "Got expected values";
+ eval '
+ no warnings "uninitialized";
+ print for $+ {this_key_doesnt_exist};
+ ';
+ ok !$@,'lvalue $+ {...} should not throw an exception';
+ }
+
+
+ {
+ my $s = 'foo bar baz';
+ my @res;
+ if ('1234' =~ /(?<A>1)(?<B>2)(?<A>3)(?<B>4)/) {
+ foreach my $name (sort keys(%-)) {
+ my $ary = $- {$name};
+ foreach my $idx (0 .. $#$ary) {
+ push @res, "$name:$idx:$ary->[$idx]";
+ }
+ }
+ }
+ my @expect = qw (A:0:1 A:1:3 B:0:2 B:1:4);
+ iseq "@res", "@expect", "Check %-";
+ eval'
+ no warnings "uninitialized";
+ print for $- {this_key_doesnt_exist};
+ ';
+ ok !$@,'lvalue $- {...} should not throw an exception';
+ }
+
+
+ SKIP:
+ {
+ # stress test CURLYX/WHILEM.
+ #
+ # This test includes varying levels of nesting, and according to
+ # profiling done against build 28905, exercises every code line in the
+ # CURLYX and WHILEM blocks, except those related to LONGJMP, the
+ # super-linear cache and warnings. It executes about 0.5M regexes
+
+ skip "No psycho tests" if $ENV {PERL_SKIP_PSYCHO_TEST};
+ print "# Set PERL_SKIP_PSYCHO_TEST to skip this test\n";
+ my $r = qr/^
+ (?:
+ ( (?:a|z+)+ )
+ (?:
+ ( (?:b|z+){3,}? )
+ (
+ (?:
+ (?:
+ (?:c|z+){1,1}?z
+ )?
+ (?:c|z+){1,1}
+ )*
+ )
+ (?:z*){2,}
+ ( (?:z+|d)+ )
+ (?:
+ ( (?:e|z+)+ )
+ )*
+ ( (?:f|z+)+ )
+ )*
+ ( (?:z+|g)+ )
+ (?:
+ ( (?:h|z+)+ )
+ )*
+ ( (?:i|z+)+ )
+ )+
+ ( (?:j|z+)+ )
+ (?:
+ ( (?:k|z+)+ )
+ )*
+ ( (?:l|z+)+ )
+ $/x;
+
+ my $ok = 1;
+ my $msg = "CURLYX stress test";
+ OUTER:
+ for my $a ("x","a","aa") {
+ for my $b ("x","bbb","bbbb") {
+ my $bs = $a.$b;
+ for my $c ("x","c","cc") {
+ my $cs = $bs.$c;
+ for my $d ("x","d","dd") {
+ my $ds = $cs.$d;
+ for my $e ("x","e","ee") {
+ my $es = $ds.$e;
+ for my $f ("x","f","ff") {
+ my $fs = $es.$f;
+ for my $g ("x","g","gg") {
+ my $gs = $fs.$g;
+ for my $h ("x","h","hh") {
+ my $hs = $gs.$h;
+ for my $i ("x","i","ii") {
+ my $is = $hs.$i;
+ for my $j ("x","j","jj") {
+ my $js = $is.$j;
+ for my $k ("x","k","kk") {
+ my $ks = $js.$k;
+ for my $l ("x","l","ll") {
+ my $ls = $ks.$l;
+ if ($ls =~ $r) {
+ if ($ls =~ /x/) {
+ $msg .= ": unexpected match for [$ls]";
+ $ok = 0;
+ last OUTER;
+ }
+ my $cap = "$1$2$3$4$5$6$7$8$9$10$11$12";
+ unless ($ls eq $cap) {
+ $msg .= ": capture: [$ls], got [$cap]";
+ $ok = 0;
+ last OUTER;
+ }
+ }
+ else {
+ unless ($ls =~ /x/) {
+ $msg = ": failed for [$ls]";
+ $ok = 0;
+ last OUTER;
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ ok($ok, $msg);
+ }
+
+
+ {
+ # \, breaks {3,4}
+ ok "xaaay" !~ /xa{3\,4}y/, '\, in a pattern';
+ ok "xa{3,4}y" =~ /xa{3\,4}y/, '\, in a pattern';
+
+ # \c\ followed by _
+ ok "x\c_y" !~ /x\c\_y/, '\_ in a pattern';
+ ok "x\c\_y" =~ /x\c\_y/, '\_ in a pattern';
+
+ # \c\ followed by other characters
+ for my $c ("z", "\0", "!", chr(254), chr(256)) {
+ my $targ = "a\034$c";
+ my $reg = "a\\c\\$c";
+ ok eval ("qq/$targ/ =~ /$reg/"), "\\c\\ in pattern";
+ }
+ }
+
+
+ {
+ local $BugId = '36046';
+ my $str = 'abc';
+ my $count = 0;
+ my $mval = 0;
+ my $pval = 0;
+ while ($str =~ /b/g) {$mval = $#-; $pval = $#+; $count ++}
+ iseq $mval, 0, '@- should be empty';
+ iseq $pval, 0, '@+ should be empty';
+ iseq $count, 1, 'Should have matched once only';
+ }
+
+
+ { # Test the (*PRUNE) pattern
+ our $count = 0;
+ 'aaab' =~ /a+b?(?{$count++})(*FAIL)/;
+ iseq $count, 9, "Expect 9 for no (*PRUNE)";
+ $count = 0;
+ 'aaab' =~ /a+b?(*PRUNE)(?{$count++})(*FAIL)/;
+ iseq $count, 3, "Expect 3 with (*PRUNE)";
+ local $_ = 'aaab';
+ $count = 0;
+ 1 while /.(*PRUNE)(?{$count++})(*FAIL)/g;
+ iseq $count, 4, "/.(*PRUNE)/";
+ $count = 0;
+ 'aaab' =~ /a+b?(??{'(*PRUNE)'})(?{$count++})(*FAIL)/;
+ iseq $count, 3, "Expect 3 with (*PRUNE)";
+ local $_ = 'aaab';
+ $count = 0;
+ 1 while /.(??{'(*PRUNE)'})(?{$count++})(*FAIL)/g;
+ iseq $count, 4, "/.(*PRUNE)/";
+ }
+
+
+ { # Test the (*SKIP) pattern
+ our $count = 0;
+ 'aaab' =~ /a+b?(*SKIP)(?{$count++})(*FAIL)/;
+ iseq $count, 1, "Expect 1 with (*SKIP)";
+ local $_ = 'aaab';
+ $count = 0;
+ 1 while /.(*SKIP)(?{$count++})(*FAIL)/g;
+ iseq $count, 4, "/.(*SKIP)/";
+ $_ = 'aaabaaab';
+ $count = 0;
+ our @res = ();
+ 1 while /(a+b?)(*SKIP)(?{$count++; push @res,$1})(*FAIL)/g;
+ iseq $count, 2, "Expect 2 with (*SKIP)";
+ iseq "@res", "aaab aaab", "Adjacent (*SKIP) works as expected";
+ }
+
+
+ { # Test the (*SKIP) pattern
+ our $count = 0;
+ 'aaab' =~ /a+b?(*MARK:foo)(*SKIP)(?{$count++})(*FAIL)/;
+ iseq $count, 1, "Expect 1 with (*SKIP)";
+ local $_ = 'aaab';
+ $count = 0;
+ 1 while /.(*MARK:foo)(*SKIP)(?{$count++})(*FAIL)/g;
+ iseq $count, 4, "/.(*SKIP)/";
+ $_ = 'aaabaaab';
+ $count = 0;
+ our @res = ();
+ 1 while /(a+b?)(*MARK:foo)(*SKIP)(?{$count++; push @res,$1})(*FAIL)/g;
+ iseq $count, 2, "Expect 2 with (*SKIP)";
+ iseq "@res", "aaab aaab", "Adjacent (*SKIP) works as expected";
+ }
+
+
+ { # Test the (*SKIP) pattern
+ our $count = 0;
+ 'aaab' =~ /a*(*MARK:a)b?(*MARK:b)(*SKIP:a)(?{$count++})(*FAIL)/;
+ iseq $count, 3, "Expect 3 with *MARK:a)b?(*MARK:b)(*SKIP:a)";
+ local $_ = 'aaabaaab';
+ $count = 0;
+ our @res = ();
+ 1 while
+ /(a*(*MARK:a)b?)(*MARK:x)(*SKIP:a)(?{$count++; push @res,$1})(*FAIL)/g;
+ iseq $count, 5, "Expect 5 with (*MARK:a)b?)(*MARK:x)(*SKIP:a)";
+ iseq "@res", "aaab b aaab b ",
+ "Adjacent (*MARK:a)b?)(*MARK:x)(*SKIP:a) works as expected";
+ }
+
+
+ { # Test the (*COMMIT) pattern
+ our $count = 0;
+ 'aaabaaab' =~ /a+b?(*COMMIT)(?{$count++})(*FAIL)/;
+ iseq $count, 1, "Expect 1 with (*COMMIT)";
+ local $_ = 'aaab';
+ $count = 0;
+ 1 while /.(*COMMIT)(?{$count++})(*FAIL)/g;
+ iseq $count, 1, "/.(*COMMIT)/";
+ $_ = 'aaabaaab';
+ $count = 0;
+ our @res = ();
+ 1 while /(a+b?)(*COMMIT)(?{$count++; push @res,$1})(*FAIL)/g;
+ iseq $count, 1, "Expect 1 with (*COMMIT)";
+ iseq "@res", "aaab", "Adjacent (*COMMIT) works as expected";
+ }
+
+
+ {
+ # Test named commits and the $REGERROR var
+ our $REGERROR;
+ for my $name ('', ':foo') {
+ for my $pat ("(*PRUNE$name)",
+ ($name ? "(*MARK$name)" : "") . "(*SKIP$name)",
+ "(*COMMIT$name)") {
+ for my $suffix ('(*FAIL)', '') {
+ 'aaaab' =~ /a+b$pat$suffix/;
+ iseq $REGERROR,
+ ($suffix ? ($name ? 'foo' : "1") : ""),
+ "Test $pat and \$REGERROR $suffix";
+ }
+ }
+ }
+ }
+
+
+ {
+ # Test named commits and the $REGERROR var
+ package Fnorble;
+ our $REGERROR;
+ for my $name ('', ':foo') {
+ for my $pat ("(*PRUNE$name)",
+ ($name ? "(*MARK$name)" : "") . "(*SKIP$name)",
+ "(*COMMIT$name)") {
+ for my $suffix ('(*FAIL)','') {
+ 'aaaab' =~ /a+b$pat$suffix/;
+ ::iseq $REGERROR,
+ ($suffix ? ($name ? 'foo' : "1") : ""),
+ "Test $pat and \$REGERROR $suffix";
+ }
+ }
+ }
+ }
+
+
+ {
+ # Test named commits and the $REGERROR var
+ local $Message = '$REGERROR';
+ our $REGERROR;
+ for my $word (qw (bar baz bop)) {
+ $REGERROR = "";
+ "aaaaa$word" =~
+ /a+(?:bar(*COMMIT:bar)|baz(*COMMIT:baz)|bop(*COMMIT:bop))(*FAIL)/;
+ iseq $REGERROR, $word;
+ }
+ }
+
+
+ {
+ local $BugId = '40684';
+ local $Message = '/m in precompiled regexp';
+ my $s = "abc\ndef";
+ my $rex = qr'^abc$'m;
+ ok $s =~ m/$rex/;
+ ok $s =~ m/^abc$/m;
+ }
+
+
+ {
+ #Mindnumbingly simple test of (*THEN)
+ for ("ABC","BAX") {
+ ok /A (*THEN) X | B (*THEN) C/x, "Simple (*THEN) test";
+ }
+ }
+
+
+ {
+ local $Message = "Relative Recursion";
+ my $parens = qr/(\((?:[^()]++|(?-1))*+\))/;
+ local $_ = 'foo((2*3)+4-3) + bar(2*(3+4)-1*(2-3))';
+ my ($all, $one, $two) = ('', '', '');
+ ok /foo $parens \s* \+ \s* bar $parens/x;
+ iseq $1, '((2*3)+4-3)';
+ iseq $2, '(2*(3+4)-1*(2-3))';
+ iseq $&, 'foo((2*3)+4-3) + bar(2*(3+4)-1*(2-3))';
+ iseq $&, $_;
+ }
+
+ {
+ my $spaces=" ";
+ local $_ = join 'bar', $spaces, $spaces;
+ our $count = 0;
+ s/(?>\s+bar)(?{$count++})//g;
+ iseq $_, $spaces, "SUSPEND final string";
+ iseq $count, 1, "Optimiser should have prevented more than one match";
+ }
+
+ {
+ local $BugId = '36909';
+ local $Message = '(?: ... )? should not lose $^R';
+ $^R = 'Nothing';
+ {
+ local $^R = "Bad";
+ ok 'x foofoo y' =~ m {
+ (foo) # $^R correctly set
+ (?{ "last regexp code result" })
+ }x;
+ iseq $^R, 'last regexp code result';
+ }
+ iseq $^R, 'Nothing';
+
+ {
+ local $^R = "Bad";
+
+ ok 'x foofoo y' =~ m {
+ (?:foo|bar)+ # $^R correctly set
+ (?{ "last regexp code result" })
+ }x;
+ iseq $^R, 'last regexp code result';
+ }
+ iseq $^R, 'Nothing';
+
+ {
+ local $^R = "Bad";
+ ok 'x foofoo y' =~ m {
+ (foo|bar)\1+ # $^R undefined
+ (?{ "last regexp code result" })
+ }x;
+ iseq $^R, 'last regexp code result';
+ }
+ iseq $^R, 'Nothing';
+
+ {
+ local $^R = "Bad";
+ ok 'x foofoo y' =~ m {
+ (foo|bar)\1 # This time without the +
+ (?{"last regexp code result"})
+ }x;
+ iseq $^R, 'last regexp code result';
+ }
+ iseq $^R, 'Nothing';
+ }
+
+
+ {
+ local $BugId = '22395';
+ local $Message = 'Match is linear, not quadratic';
+ our $count;
+ for my $l (10, 100, 1000) {
+ $count = 0;
+ ('a' x $l) =~ /(.*)(?{$count++})[bc]/;
+ local $TODO = "Should be L+1 not L*(L+3)/2 (L=$l)";
+ iseq $count, $l + 1;
+ }
+ }
+
+
+ {
+ local $BugId = '22614';
+ local $Message = '@-/@+ should not have undefined values';
+ local $_ = 'ab';
+ our @len = ();
+ /(.){1,}(?{push @len,0+@-})(.){1,}(?{})^/;
+ iseq "@len", "2 2 2";
+ }
+
+
+ {
+ local $BugId = '18209';
+ local $Message = '$& set on s///';
+ my $text = ' word1 word2 word3 word4 word5 word6 ';
+
+ my @words = ('word1', 'word3', 'word5');
+ my $count;
+ foreach my $word (@words) {
+ $text =~ s/$word\s//gi; # Leave a space to seperate words
+ # in the resultant str.
+ # The following block is not working.
+ if ($&) {
+ $count ++;
+ }
+ # End bad block
+ }
+ iseq $count, 3;
+ iseq $text, ' word2 word4 word6 ';
+ }
+
+
+ {
+ # RT#6893
+ local $BugId = '6893';
+ local $_ = qq (A\nB\nC\n);
+ my @res;
+ while (m#(\G|\n)([^\n]*)\n#gsx) {
+ push @res, "$2";
+ last if @res > 3;
+ }
+ iseq "@res", "A B C", "/g pattern shouldn't infinite loop";
+ }
+
+
+ {
+ # From Message-ID: <877ixs6oa6.fsf@k75.linux.bogus>
+ my $dow_name = "nada";
+ my $parser = "(\$dow_name) = \$time_string =~ /(D\x{e9}\\ " .
+ "C\x{e9}adaoin|D\x{e9}\\ Sathairn|\\w+|\x{100})/";
+ my $time_string = "D\x{e9} C\x{e9}adaoin";
+ eval $parser;
+ ok !$@, "Test Eval worked";
+ iseq $dow_name, $time_string, "UTF-8 trie common prefix extraction";
+ }
+
+
+ {
+ my $v;
+ ($v = 'bar') =~ /(\w+)/g;
+ $v = 'foo';
+ iseq "$1", 'bar', '$1 is safe after /g - may fail due ' .
+ 'to specialized config in pp_hot.c'
+ }
+
+
+ {
+ local $Message = "http://nntp.perl.org/group/perl.perl5.porters/118663";
+ my $qr_barR1 = qr/(bar)\g-1/;
+ ok "foobarbarxyz" =~ $qr_barR1;
+ ok "foobarbarxyz" =~ qr/foo${qr_barR1}xyz/;
+ ok "foobarbarxyz" =~ qr/(foo)${qr_barR1}xyz/;
+ ok "foobarbarxyz" =~ qr/(foo)(bar)\g{-1}xyz/;
+ ok "foobarbarxyz" =~ qr/(foo${qr_barR1})xyz/;
+ ok "foobarbarxyz" =~ qr/(foo(bar)\g{-1})xyz/;
+ }
+
+
+ {
+ local $BugId = '41010';
+ local $Message = 'No optimizer bug';
+ my @tails = ('', '(?(1))', '(|)', '()?');
+ my @quants = ('*','+');
+ my $doit = sub {
+ my $pats = shift;
+ for (@_) {
+ for my $pat (@$pats) {
+ for my $quant (@quants) {
+ for my $tail (@tails) {
+ my $re = "($pat$quant\$)$tail";
+ ok /$re/ && $1 eq $_, "'$_' =~ /$re/";
+ ok /$re/m && $1 eq $_, "'$_' =~ /$re/m";
+ }
+ }
+ }
+ }
+ };
+
+ my @dpats = ('\d',
+ '[1234567890]',
+ '(1|[23]|4|[56]|[78]|[90])',
+ '(?:1|[23]|4|[56]|[78]|[90])',
+ '(1|2|3|4|5|6|7|8|9|0)',
+ '(?:1|2|3|4|5|6|7|8|9|0)');
+ my @spats = ('[ ]', ' ', '( |\t)', '(?: |\t)', '[ \t]', '\s');
+ my @sstrs = (' ');
+ my @dstrs = ('12345');
+ $doit -> (\@spats, @sstrs);
+ $doit -> (\@dpats, @dstrs);
+ }
+
+
+ {
+ local $Message = '$REGMARK';
+ our @r = ();
+ our ($REGMARK, $REGERROR);
+ ok 'foofoo' =~ /foo (*MARK:foo) (?{push @r,$REGMARK}) /x;
+ iseq "@r","foo";
+ iseq $REGMARK, "foo";
+ ok 'foofoo' !~ /foo (*MARK:foo) (*FAIL) /x;
+ ok !$REGMARK;
+ iseq $REGERROR, 'foo';
+ }
+
+
+ {
+ local $Message = '\K test';
+ my $x;
+ $x = "abc.def.ghi.jkl";
+ $x =~ s/.*\K\..*//;
+ iseq $x, "abc.def.ghi";
+
+ $x = "one two three four";
+ $x =~ s/o+ \Kthree//g;
+ iseq $x, "one two four";
+
+ $x = "abcde";
+ $x =~ s/(.)\K/$1/g;
+ iseq $x, "aabbccddee";
+ }
+
+
+ {
+ sub kt {
+ return '4' if $_[0] eq '09028623';
+ }
+ # Nested EVAL using PL_curpm (via $1 or friends)
+ my $re;
+ our $grabit = qr/ ([0-6][0-9]{7}) (??{ kt $1 }) [890] /x;
+ $re = qr/^ ( (??{ $grabit }) ) $ /x;
+ my @res = '0902862349' =~ $re;
+ iseq join ("-", @res), "0902862349",
+ 'PL_curpm is set properly on nested eval';
+
+ our $qr = qr/ (o) (??{ $1 }) /x;
+ ok 'boob'=~/( b (??{ $qr }) b )/x && 1, "PL_curpm, nested eval";
+ }
+
+
+ {
+ use charnames ":full";
+ ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Alphabetic}/, "I =~ Alphabetic";
+ ok "\N{ROMAN NUMERAL ONE}" =~ /\p{Uppercase}/, "I =~ Uppercase";
+ ok "\N{ROMAN NUMERAL ONE}" !~ /\p{Lowercase}/, "I !~ Lowercase";
+ ok "\N{ROMAN NUMERAL ONE}" =~ /\p{IDStart}/, "I =~ ID_Start";
+ ok "\N{ROMAN NUMERAL ONE}" =~ /\p{IDContinue}/, "I =~ ID_Continue";
+ ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Alphabetic}/, "i =~ Alphabetic";
+ ok "\N{SMALL ROMAN NUMERAL ONE}" !~ /\p{Uppercase}/, "i !~ Uppercase";
+ ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{Lowercase}/, "i =~ Lowercase";
+ ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{IDStart}/, "i =~ ID_Start";
+ ok "\N{SMALL ROMAN NUMERAL ONE}" =~ /\p{IDContinue}/, "i =~ ID_Continue"
+ }
+
+
+ {
+ # requirement of Unicode Technical Standard #18, 1.7 Code Points
+ # cf. http://www.unicode.org/reports/tr18/#Supplementary_Characters
+ for my $u (0x7FF, 0x800, 0xFFFF, 0x10000) {
+ no warnings 'utf8'; # oops
+ my $c = chr $u;
+ my $x = sprintf '%04X', $u;
+ ok "A${c}B" =~ /A[\0-\x{10000}]B/, "Unicode range - $x";
+ }
+ }
+
+
+ {
+ my $res="";
+
+ if ('1' =~ /(?|(?<digit>1)|(?<digit>2))/) {
+ $res = "@{$- {digit}}";
+ }
+ iseq $res, "1",
+ "Check that (?|...) doesnt cause dupe entries in the names array";
+
+ $res = "";
+ if ('11' =~ /(?|(?<digit>1)|(?<digit>2))(?&digit)/) {
+ $res = "@{$- {digit}}";
+ }
+ iseq $res, "1", "Check that (?&..) to a buffer inside " .
+ "a (?|...) goes to the leftmost";
+ }
+
+
+ {
+ use warnings;
+ local $Message = "ASCII pattern that really is UTF-8";
+ my @w;
+ local $SIG {__WARN__} = sub {push @w, "@_"};
+ my $c = qq (\x{DF});
+ ok $c =~ /${c}|\x{100}/;
+ ok @w == 0;
+ }
+
+
+ {
+ local $Message = "Corruption of match results of qr// across scopes";
+ my $qr = qr/(fo+)(ba+r)/;
+ 'foobar' =~ /$qr/;
+ iseq "$1$2", "foobar";
+ {
+ 'foooooobaaaaar' =~ /$qr/;
+ iseq "$1$2", 'foooooobaaaaar';
+ }
+ iseq "$1$2", "foobar";
+ }
+
+
+ {
+ local $Message = "HORIZWS";
+ local $_ = "\t \r\n \n \t".chr(11)."\n";
+ s/\H/H/g;
+ s/\h/h/g;
+ iseq $_, "hhHHhHhhHH";
+ $_ = "\t \r\n \n \t" . chr (11) . "\n";
+ utf8::upgrade ($_);
+ s/\H/H/g;
+ s/\h/h/g;
+ iseq $_, "hhHHhHhhHH";
+ }
+
+
+ {
+ local $Message = "Various whitespace special patterns";
+ my @h = map {chr $_} 0x09, 0x20, 0xa0, 0x1680, 0x180e, 0x2000,
+ 0x2001, 0x2002, 0x2003, 0x2004, 0x2005, 0x2006,
+ 0x2007, 0x2008, 0x2009, 0x200a, 0x202f, 0x205f,
+ 0x3000;
+ my @v = map {chr $_} 0x0a, 0x0b, 0x0c, 0x0d, 0x85, 0x2028,
+ 0x2029;
+ my @lb = ("\x0D\x0A", map {chr $_} 0x0A .. 0x0D, 0x85, 0x2028, 0x2029);
+ foreach my $t ([\@h, qr/\h/, qr/\h+/],
+ [\@v, qr/\v/, qr/\v+/],
+ [\@lb, qr/\R/, qr/\R+/],) {
+ my $ary = shift @$t;
+ foreach my $pat (@$t) {
+ foreach my $str (@$ary) {
+ ok $str =~ /($pat)/, $pat;
+ iseq $1, $str, $pat;
+ utf8::upgrade ($str);
+ ok $str =~ /($pat)/, "Upgraded string - $pat";
+ iseq $1, $str, "Upgraded string - $pat";
+ }
+ }
+ }
+ }
+
+
+ {
+ local $Message = "Check that \\xDF match properly in its various forms";
+ # Test that \xDF matches properly. this is pretty hacky stuff,
+ # but its actually needed. The malarky with '-' is to prevent
+ # compilation caching from playing any role in the test.
+ my @df = (chr (0xDF), '-', chr (0xDF));
+ utf8::upgrade ($df [2]);
+ my @strs = ('ss', 'sS', 'Ss', 'SS', chr (0xDF));
+ my @ss = map {("$_", "$_")} @strs;
+ utf8::upgrade ($ss [$_ * 2 + 1]) for 0 .. $#strs;
+
+ for my $ssi (0 .. $#ss) {
+ for my $dfi (0 .. $#df) {
+ my $pat = $df [$dfi];
+ my $str = $ss [$ssi];
+ my $utf_df = ($dfi > 1) ? 'utf8' : '';
+ my $utf_ss = ($ssi % 2) ? 'utf8' : '';
+ (my $sstr = $str) =~ s/\xDF/\\xDF/;
+
+ if ($utf_df || $utf_ss || length ($ss [$ssi]) == 1) {
+ my $ret = $str =~ /$pat/i;
+ next if $pat eq '-';
+ ok $ret, "\"$sstr\" =~ /\\xDF/i " .
+ "(str is @{[$utf_ss||'latin']}, pat is " .
+ "@{[$utf_df||'latin']})";
+ }
+ else {
+ my $ret = $str !~ /$pat/i;
+ next if $pat eq '-';
+ ok $ret, "\"$sstr\" !~ /\\xDF/i " .
+ "(str is @{[$utf_ss||'latin']}, pat is " .
+ "@{[$utf_df||'latin']})";
+ }
+ }
+ }
+ }
+
+
+ {
+ local $Message = "BBC(Bleadperl Breaks CPAN) Today: String::Multibyte";
+ my $re = qr/(?:[\x00-\xFF]{4})/;
+ my $hyp = "\0\0\0-";
+ my $esc = "\0\0\0\\";
+
+ my $str = "$esc$hyp$hyp$esc$esc";
+ my @a = ($str =~ /\G(?:\Q$esc$esc\E|\Q$esc$hyp\E|$re)/g);
+
+ iseq @a,3;
+ local $" = "=";
+ iseq "@a","$esc$hyp=$hyp=$esc$esc";
+ }
+
+
+ {
+ # Test for keys in %+ and %-
+ local $Message = 'Test keys in %+ and %-';
+ no warnings 'uninitialized';
+ my $_ = "abcdef";
+ /(?<foo>a)|(?<foo>b)/;
+ iseq ((join ",", sort keys %+), "foo");
+ iseq ((join ",", sort keys %-), "foo");
+ iseq ((join ",", sort values %+), "a");
+ iseq ((join ",", sort map "@$_", values %-), "a ");
+ /(?<bar>a)(?<bar>b)(?<quux>.)/;
+ iseq ((join ",", sort keys %+), "bar,quux");
+ iseq ((join ",", sort keys %-), "bar,quux");
+ iseq ((join ",", sort values %+), "a,c"); # leftmost
+ iseq ((join ",", sort map "@$_", values %-), "a b,c");
+ /(?<un>a)(?<deux>c)?/; # second buffer won't capture
+ iseq ((join ",", sort keys %+), "un");
+ iseq ((join ",", sort keys %-), "deux,un");
+ iseq ((join ",", sort values %+), "a");
+ iseq ((join ",", sort map "@$_", values %-), ",a");
+ }
+
+
+ {
+ # length() on captures, the numbered ones end up in Perl_magic_len
+ my $_ = "aoeu \xe6var ook";
+ /^ \w+ \s (?<eek>\S+)/x;
+
+ iseq length ($`), 0, q[length $`];
+ iseq length ($'), 4, q[length $'];
+ iseq length ($&), 9, q[length $&];
+ iseq length ($1), 4, q[length $1];
+ iseq length ($+{eek}), 4, q[length $+{eek} == length $1];
+ }
+
+
+ {
+ my $ok = -1;
+
+ $ok = exists ($-{x}) ? 1 : 0 if 'bar' =~ /(?<x>foo)|bar/;
+ iseq $ok, 1, '$-{x} exists after "bar"=~/(?<x>foo)|bar/';
+ iseq scalar (%+), 0, 'scalar %+ == 0 after "bar"=~/(?<x>foo)|bar/';
+ iseq scalar (%-), 1, 'scalar %- == 1 after "bar"=~/(?<x>foo)|bar/';
+
+ $ok = -1;
+ $ok = exists ($+{x}) ? 1 : 0 if 'bar' =~ /(?<x>foo)|bar/;
+ iseq $ok, 0, '$+{x} not exists after "bar"=~/(?<x>foo)|bar/';
+ iseq scalar (%+), 0, 'scalar %+ == 0 after "bar"=~/(?<x>foo)|bar/';
+ iseq scalar (%-), 1, 'scalar %- == 1 after "bar"=~/(?<x>foo)|bar/';
+
+ $ok = -1;
+ $ok = exists ($-{x}) ? 1 : 0 if 'foo' =~ /(?<x>foo)|bar/;
+ iseq $ok, 1, '$-{x} exists after "foo"=~/(?<x>foo)|bar/';
+ iseq scalar (%+), 1, 'scalar %+ == 1 after "foo"=~/(?<x>foo)|bar/';
+ iseq scalar (%-), 1, 'scalar %- == 1 after "foo"=~/(?<x>foo)|bar/';
+
+ $ok = -1;
+ $ok = exists ($+{x}) ? 1 : 0 if 'foo'=~/(?<x>foo)|bar/;
+ iseq $ok, 1, '$+{x} exists after "foo"=~/(?<x>foo)|bar/';
+ }
+
+
+ {
+ local $_;
+ ($_ = 'abc') =~ /(abc)/g;
+ $_ = '123';
+ iseq "$1", 'abc', "/g leads to unsafe match vars: $1";
+ }
+
+
+ {
+ local $Message = 'Message-ID: <20070818091501.7eff4831@r2d2>';
+ my $str = "";
+ for (0 .. 5) {
+ my @x;
+ $str .= "@x"; # this should ALWAYS be the empty string
+ 'a' =~ /(a|)/;
+ push @x, 1;
+ }
+ iseq length ($str), 0, "Trie scope error, string should be empty";
+ $str = "";
+ my @foo = ('a') x 5;
+ for (@foo) {
+ my @bar;
+ $str .= "@bar";
+ s/a|/push @bar, 1/e;
+ }
+ iseq length ($str), 0, "Trie scope error, string should be empty";
+ }
+
+
+ {
+ local $BugId = '45605';
+ # [perl #45605] Regexp failure with utf8-flagged and byte-flagged string
+
+ my $utf_8 = "\xd6schel";
+ utf8::upgrade ($utf_8);
+ $utf_8 =~ m {(\xd6|Ö)schel};
+ iseq $1, "\xd6", "Upgrade error";
+ }
+
+ {
+# more TRIE/AHOCORASICK problems with mixed utf8 / latin-1 and case folding
+ for my $chr (160 .. 255) {
+ my $chr_byte = chr($chr);
+ my $chr_utf8 = chr($chr); utf8::upgrade($chr_utf8);
+ my $rx = qr{$chr_byte|X}i;
+ ok($chr_utf8 =~ $rx, "utf8/latin, codepoint $chr");
+ }
+ }
+
+ {
+ # Regardless of utf8ness any character matches itself when
+ # doing a case insensitive match. See also [perl #36207]
+ local $BugId = '36207';
+ for my $o (0 .. 255) {
+ my @ch = (chr ($o), chr ($o));
+ utf8::upgrade ($ch [1]);
+ for my $u_str (0, 1) {
+ for my $u_pat (0, 1) {
+ ok $ch [$u_str] =~ /\Q$ch[$u_pat]\E/i,
+ "\$c =~ /\$c/i : chr ($o) : u_str = $u_str u_pat = $u_pat";
+ ok $ch [$u_str] =~ /\Q$ch[$u_pat]\E|xyz/i,
+ "\$c=~/\$c|xyz/i : chr($o) : u_str = $u_str u_pat = $u_pat";
+ }
+ }
+ }
+ }
+
+
+ {
+ our $a = 3; "" =~ /(??{ $a })/;
+ our $b = $a;
+ iseq $b, $a, "Copy of scalar used for postponed subexpression";
+ }
+
+
+ {
+ local $BugId = '49190';
+ local $Message = '$REGMARK in replacement';
+ our $REGMARK;
+ my $_ = "A";
+ ok s/(*:B)A/$REGMARK/;
+ iseq $_, "B";
+ $_ = "CCCCBAA";
+ ok s/(*:X)A+|(*:Y)B+|(*:Z)C+/$REGMARK/g;
+ iseq $_, "ZYX";
+ }
+
+
+ {
+ our @ctl_n = ();
+ our @plus = ();
+ our $nested_tags;
+ $nested_tags = qr{
+ <
+ (\w+)
+ (?{
+ push @ctl_n,$^N;
+ push @plus,$+;
+ })
+ >
+ (??{$nested_tags})*
+ </\s* \w+ \s*>
+ }x;
+
+ my $match = '<bla><blubb></blubb></bla>' =~ m/^$nested_tags$/;
+ ok $match, 'nested construct matches';
+ iseq "@ctl_n", "bla blubb", '$^N inside of (?{}) works as expected';
+ iseq "@plus", "bla blubb", '$+ inside of (?{}) works as expected';
+ }
+
+
+ {
+ local $BugId = '52658';
+ local $Message = 'Substitution evaluation in list context';
+ my $reg = '../xxx/';
+ my @te = ($reg =~ m{^(/?(?:\.\./)*)},
+ $reg =~ s/(x)/'b'/eg > 1 ? '##' : '++');
+ iseq $reg, '../bbb/';
+ iseq $te [0], '../';
+ }
+
+ # This currently has to come before any "use encoding" in this file.
+ {
+ local $Message;
+ local $BugId = '59342';
+ must_warn 'qr/\400/', '^Use of octal value above 377';
+ }
+
+
+ SKIP: {
+ # XXX: This set of tests is essentially broken, POSIX character classes
+ # should not have differing definitions under Unicode.
+ # There are property names for that.
+ skip "Tests assume ASCII", 4 unless $IS_ASCII;
+
+ my @notIsPunct = grep {/[[:punct:]]/ and not /\p{IsPunct}/}
+ map {chr} 0x20 .. 0x7f;
+ iseq join ('', @notIsPunct), '$+<=>^`|~',
+ '[:punct:] disagress with IsPunct on Symbols';
+
+ my @isPrint = grep {not /[[:print:]]/ and /\p{IsPrint}/}
+ map {chr} 0 .. 0x1f, 0x7f .. 0x9f;
+ iseq join ('', @isPrint), "\x09\x0a\x0b\x0c\x0d\x85",
+ 'IsPrint disagrees with [:print:] on control characters';
+
+ my @isPunct = grep {/[[:punct:]]/ != /\p{IsPunct}/}
+ map {chr} 0x80 .. 0xff;
+ iseq join ('', @isPunct), "\xa1\xab\xb7\xbb\xbf", # ¡ « · » ¿
+ 'IsPunct disagrees with [:punct:] outside ASCII';
+
+ my @isPunctLatin1 = eval q {
+ use encoding 'latin1';
+ grep {/[[:punct:]]/ != /\p{IsPunct}/} map {chr} 0x80 .. 0xff;
+ };
+ skip "Eval failed ($@)", 1 if $@;
+ skip "PERL_LEGACY_UNICODE_CHARCLASS_MAPPINGS set to 0", 1
+ if !$ENV{PERL_TEST_LEGACY_POSIX_CC};
+ iseq join ('', @isPunctLatin1), '',
+ 'IsPunct agrees with [:punct:] with explicit Latin1';
+ }
+
+
+ {
+ local $BugId = '60034';
+ my $a = "xyzt" x 8192;
+ ok $a =~ /\A(?>[a-z])*\z/,
+ '(?>) does not cause wrongness on long string';
+ my $b = $a . chr 256;
+ chop $b;
+ {
+ iseq $a, $b;
+ }
+ ok $b =~ /\A(?>[a-z])*\z/,
+ '(?>) does not cause wrongness on long string with UTF-8';
+ }
+
+
+ #
+ # Keep the following tests last -- they may crash perl
+ #
+ print "# Tests that follow may crash perl\n";
+ {
+ local $BugId = '19049/38869';
+ local $Message = 'Pattern in a loop, failure should not ' .
+ 'affect previous success';
+ my @list = (
+ 'ab cdef', # Matches regex
+ ('e' x 40000 ) .'ab c' # Matches not, but 'ab c' matches part of it
+ );
+ my $y;
+ my $x;
+ foreach (@list) {
+ m/ab(.+)cd/i; # The ignore-case seems to be important
+ $y = $1; # Use $1, which might not be from the last match!
+ $x = substr ($list [0], $- [0], $+ [0] - $- [0]);
+ }
+ iseq $y, ' ';
+ iseq $x, 'ab cd';
+ }
+
+
+ {
+ local $BugId = '24274';
+
+ ok (("a" x (2 ** 15 - 10)) =~ /^()(a|bb)*$/, "Recursive stack cracker");
+ ok ((q(a)x 100) =~ /^(??{'(.)'x 100})/,
+ "Regexp /^(??{'(.)'x 100})/ crashes older perls");
+ }
+
+
+ {
+ eval '/\k/';
+ ok $@ =~ /\QSequence \k... not terminated in regex;\E/,
+ 'Lone \k not allowed';
+ }
+
+
+ {
+ local $Message = "Substitution with lookahead (possible segv)";
+ $_ = "ns1ns1ns1";
+ s/ns(?=\d)/ns_/g;
+ iseq $_, "ns_1ns_1ns_1";
+ $_ = "ns1";
+ s/ns(?=\d)/ns_/;
+ iseq $_, "ns_1";
+ $_ = "123";
+ s/(?=\d+)|(?<=\d)/!Bang!/g;
+ iseq $_, "!Bang!1!Bang!2!Bang!3!Bang!";
+ }
+
+
+ {
+ # [perl #45337] utf8 + "[a]a{2}" + /$.../ = panic: sv_len_utf8 cache
+ local $BugId = '45337';
+ local ${^UTF8CACHE} = -1;
+ local $Message = "Shouldn't panic";
+ my $s = "[a]a{2}";
+ utf8::upgrade $s;
+ ok "aaa" =~ /$s/;
+ }
+ {
+ local $BugId = '57042';
+ local $Message = "Check if tree logic breaks \$^R";
+ my $cond_re = qr/\s*
+ \s* (?:
+ \( \s* A (?{1})
+ | \( \s* B (?{2})
+ )
+ /x;
+ my @res;
+ for my $line ("(A)","(B)") {
+ if ($line =~ m/$cond_re/) {
+ push @res, $^R ? "#$^R" : "UNDEF";
+ }
+ }
+ iseq "@res","#1 #2";
+ }
+ {
+ no warnings 'closure';
+ my $re = qr/A(??{"1"})/;
+ ok "A1B" =~ m/^((??{ $re }))((??{"B"}))$/;
+ ok $1 eq "A1";
+ ok $2 eq "B";
+ }
+
+
+ {
+ use re 'eval';
+ local $Message = 'Test if $^N and $+ work in (?{{})';
+ our @ctl_n = ();
+ our @plus = ();
+ our $nested_tags;
+ $nested_tags = qr{
+ <
+ ((\w)+)
+ (?{
+ push @ctl_n, (defined $^N ? $^N : "undef");
+ push @plus, (defined $+ ? $+ : "undef");
+ })
+ >
+ (??{$nested_tags})*
+ </\s* \w+ \s*>
+ }x;
+
+
+ my $c = 0;
+ for my $test (
+ # Test structure:
+ # [ Expected result, Regex, Expected value(s) of $^N, Expected value(s) of $+ ]
+ [ 1, qr#^$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^($nested_tags)$#, "bla blubb <bla><blubb></blubb></bla>", "a b a" ],
+ [ 1, qr#^(|)$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^(?:|)$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^<(bl|bla)>$nested_tags<(/\1)>$#, "blubb /bla", "b /bla" ],
+ [ 1, qr#(??{"(|)"})$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^(??{"(bla|)"})$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^(??{"(|)"})(??{$nested_tags})$#, "bla blubb undef", "a b undef" ],
+ [ 1, qr#^(??{"(?:|)"})$nested_tags$#, "bla blubb bla", "a b a" ],
+ [ 1, qr#^((??{"(?:bla|)"}))((??{$nested_tags}))$#, "bla blubb <bla><blubb></blubb></bla>", "a b <bla><blubb></blubb></bla>" ],
+ [ 1, qr#^((??{"(?!)?"}))((??{$nested_tags}))$#, "bla blubb <bla><blubb></blubb></bla>", "a b <bla><blubb></blubb></bla>" ],
+ [ 1, qr#^((??{"(?:|<(/?bla)>)"}))((??{$nested_tags}))\1$#, "bla blubb <bla><blubb></blubb></bla>", "a b <bla><blubb></blubb></bla>" ],
+ [ 0, qr#^((??{"(?!)"}))?((??{$nested_tags}))(?!)$#, "bla blubb undef", "a b undef" ],
+
+ ) { #"#silence vim highlighting
+ $c++;
+ @ctl_n = ();
+ @plus = ();
+ my $match = (("<bla><blubb></blubb></bla>" =~ $test->[1]) ? 1 : 0);
+ push @ctl_n, (defined $^N ? $^N : "undef");
+ push @plus, (defined $+ ? $+ : "undef");
+ ok($test->[0] == $match, "match $c");
+ if ($test->[0] != $match) {
+ # unset @ctl_n and @plus
+ @ctl_n = @plus = ();
+ }
+ iseq("@ctl_n", $test->[2], "ctl_n $c");
+ iseq("@plus", $test->[3], "plus $c");
+ }
+ }
+
+ {
+ use re 'eval';
+ local $BugId = '56194';
+
+ our $f;
+ local $f;
+ $f = sub {
+ defined $_[0] ? $_[0] : "undef";
+ };
+
+ ok("123" =~ m/^(\d)(((??{1 + $^N})))+$/);
+
+ our @ctl_n;
+ our @plus;
+
+ my $re = qr#(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))*(?{$^N})#;
+ my $re2 = qr#(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))*(?{$^N})(|a(b)c|def)(??{"$^R"})#;
+ my $re3 = qr#(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1})){2}(?{$^N})(|a(b)c|def)(??{"$^R"})#;
+ our $re5;
+ local $re5 = qr#(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1})){2}(?{$^N})#;
+ my $re6 = qr#(??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1})#;
+ my $re7 = qr#(??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1})#;
+ my $re8 = qr/(\d+)/;
+ my $c = 0;
+ for my $test (
+ # Test structure:
+ # [
+ # String to match
+ # Regex too match
+ # Expected values of $^N
+ # Expected values of $+
+ # Expected values of $1, $2, $3, $4 and $5
+ # ]
+ [
+ "1233",
+ qr#^(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))+(??{$^N})$#,
+ "1 2 3 3",
+ "1 2 3 3",
+ "\$1 = 1, \$2 = 3, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "1233",
+ qr#^(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))+(abc|def|)?(??{$+})$#,
+ "1 2 3 3",
+ "1 2 3 3",
+ "\$1 = 1, \$2 = 3, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "1233",
+ qr#^(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))+(|abc|def)?(??{$+})$#,
+ "1 2 3 3",
+ "1 2 3 3",
+ "\$1 = 1, \$2 = 3, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "1233",
+ qr#^(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))+(abc|def|)?(??{$^N})$#,
+ "1 2 3 3",
+ "1 2 3 3",
+ "\$1 = 1, \$2 = 3, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "1233",
+ qr#^(1)((??{ push @ctl_n, $f->($^N); push @plus, $f->($+); $^N + 1}))+(|abc|def)?(??{$^N})$#,
+ "1 2 3 3",
+ "1 2 3 3",
+ "\$1 = 1, \$2 = 3, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "123abc3",
+ qr#^($re)(|a(b)c|def)(??{$^R})$#,
+ "1 2 3 abc",
+ "1 2 3 b",
+ "\$1 = 123, \$2 = 1, \$3 = 3, \$4 = abc, \$5 = b",
+ ],
+ [
+ "123abc3",
+ qr#^($re2)$#,
+ "1 2 3 123abc3",
+ "1 2 3 b",
+ "\$1 = 123abc3, \$2 = 1, \$3 = 3, \$4 = abc, \$5 = b",
+ ],
+ [
+ "123abc3",
+ qr#^($re3)$#,
+ "1 2 123abc3",
+ "1 2 b",
+ "\$1 = 123abc3, \$2 = 1, \$3 = 3, \$4 = abc, \$5 = b",
+ ],
+ [
+ "123abc3",
+ qr#^(??{$re5})(|abc|def)(??{"$^R"})$#,
+ "1 2 abc",
+ "1 2 abc",
+ "\$1 = abc, \$2 = undef, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "123abc3",
+ qr#^(??{$re5})(|a(b)c|def)(??{"$^R"})$#,
+ "1 2 abc",
+ "1 2 b",
+ "\$1 = abc, \$2 = b, \$3 = undef, \$4 = undef, \$5 = undef",
+ ],
+ [
+ "1234",
+ qr#^((\d+)((??{push @ctl_n, $f->($^N); push @plus, $f->($+);$^N + 1}))((??{push @ctl_n, $f->($^N); push @plus, $f->($+);$^N + 1}))((??{push @ctl_n, $f->($^N); push @plus, $f->($+);$^N + 1})))$#,
+ "1234 123 12 1 2 3 1234",
+ "1234 123 12 1 2 3 4",
+ "\$1 = 1234, \$2 = 1, \$3 = 2, \$4 = 3, \$5 = 4",
+ ],
+ [
+ "1234556",
+ qr#^(\d+)($re6)($re6)($re6)$re6(($re6)$re6)$#,
+ "1234556 123455 12345 1234 123 12 1 2 3 4 4 5 56",
+ "1234556 123455 12345 1234 123 12 1 2 3 4 4 5 5",
+ "\$1 = 1, \$2 = 2, \$3 = 3, \$4 = 4, \$5 = 56",
+ ],
+ [
+ "12345562",
+ qr#^((??{$re8}))($re7)($re7)($re7)$re7($re7)($re7(\2))$#,
+ "12345562 1234556 123455 12345 1234 123 12 1 2 3 4 4 5 62",
+ "12345562 1234556 123455 12345 1234 123 12 1 2 3 4 4 5 2",
+ "\$1 = 1, \$2 = 2, \$3 = 3, \$4 = 4, \$5 = 5",
+ ],
+ ) {
+ $c++;
+ @ctl_n = ();
+ @plus = ();
+ undef $^R;
+ my $match = $test->[0] =~ $test->[1];
+ my $str = join(", ", '$1 = '.$f->($1), '$2 = '.$f->($2), '$3 = '.$f->($3), '$4 = '.$f->($4),'$5 = '.$f->($5));
+ push @ctl_n, $f->($^N);
+ push @plus, $f->($+);
+ ok($match,
https://perl5.git.perl.org / perl5.git / commitdiff