The Perl and Raku Conference 2025: Greenville, South Carolina - June 27-29 Learn more

# VOODOO LINE-NOISE
my($C,$M,$P,$N,$S);END{print"1..$C\n$M";print"\nfailed: $N\n"if$N}
sub ok{$C++; $M.= ($_[0]||!@_)?"ok $C\n":($N++,"not ok $C (".
((caller 1)[1]||(caller 0)[1]).":".((caller 1)[2]||(caller 0)[2]).")\n")}
sub try{$P=qr/^$_[0]$/}sub fail{my($S,@M)=@_;my $C=0;unshift@M,$S;
print"wanted\t[",join('][',@M),"]\n";print"got\t[",join('][',$S=~$P),"]\n";}
sub pass{my($S,@M)=@_;my$C=0;unshift@M,$S;foreach($S=~$P){++$C and next
if(shift()eq$_);ok(0)&&return;}ok($C>0);}
# Shut up some warnings for 5.005.
$SIG{__WARN__} = sub { };
# LOAD
ok;
if ($] >= 5.010) {
try $RE{balanced}{-keep};
pass '(a(b))';
try $RE{balanced}{-begin => ">>"}{-end => "<<"}{-keep};
pass '>>>>>>a<<>>b<<<<>>c<<<<';
}
try $RE{num}{real}{-keep};
pass '-1.234e+567', qw( - 1.234 1 . 234 e +567 + 567 );
try $RE{num}{dec}{-keep};
pass '-1.234e+567', qw( - 1.234 1 . 234 e +567 + 567 );
try $RE{num}{real}{'-base' => '2'}{-expon=>'x2\^'}{-keep};
pass '-101.010x2^101010', qw( - 101.010 101 . 010 x2^ 101010 ), "", "101010";
try $RE{num}{bin}{-keep};
pass '-101.010E101010', qw( - 101.010 101 . 010 E 101010 ), "", "101010";
try $RE{num}{real}{'-base' => '10'}{-sep}{-keep};
pass '-1,234,567.234e+567', "-", "1,234,567.234", "1,234,567", ".",
"234", "e", "+567", "+", "567";
try $RE{comment}{C}{-keep};
pass '/*abc*/', qw( /* abc */ );
try $RE{comment}{'C++'}{-keep};
pass '/*abc*/';
pass "// abc\n";
try $RE{comment}{Perl}{-keep};
pass "# abc\n", "#", " abc", "\n";
try $RE{comment}{shell}{-keep};
pass "# abc\n", "#", " abc", "\n";
try $RE{comment}{Eiffel}{-keep};
pass "-- A comment\n", "--", " A comment", "\n";
pass "---- A comment\n", "--", "-- A comment", "\n";
try $RE{comment}{SQL}{-keep};
pass "-- A comment\n", "--", " A comment", "\n";
pass "---- A comment\n", "----", " A comment", "\n";
try $RE{comment}{HTML}{-keep};
pass "<!-- A comment -->", "<!", "-- A comment --", " A comment ", ">";
pass "<!---->", "<!", "----", "", ">";
pass "<!-- A -- -- B -- >", "<!", "-- A -- -- B -- ", " B ", ">";
try $RE{comment}{Smalltalk}{-keep};
pass '"A comment"', '"', 'A comment', '"';
unless ($] < 5.006) {
try $RE{comment}{Dylan}{-keep};
pass "// Comment\n";
pass "/* Nested /* Comment */ */";
try $RE{comment}{Haskell}{-keep};
pass "--- Comment\n";
pass "{- Nested {- Comment -} -}";
try $RE{comment}{Hugo}{-keep};
pass "!comment\n";
pass "!\\!\\ \\!\\!";
}
unless ($] < 5.008) {
try $RE{comment}{Beatnik}{-keep};
pass "is";
pass "whiskers";
}
try $RE{delimited}{qq{-delim$;/}}{-keep};
pass '/a\/b/', qw( / a\/b / );
try $RE{delimited}{qq{-delim$;/}}{qq{-esc$;/}}{-keep};
pass '/a//b/', qw( / a//b / );
try $RE{net}{IPv4}{-keep};
pass '123.234.1.0', qw( 123 234 1 0 );
try $RE{net}{MAC}{-keep};
pass '12:34:56:78:9a:bc', qw /12 34 56 78 9a bc/;
try $RE{net}{domain}{-keep};
pass 'host.example.com';
try $RE{list}{conj}{-word=>'(?:and|or)'}{-keep};
pass 'a, b, and c', ', and ';
my $profane = 'uneqba';
my $contextual = 'funttref';
foreach ($profane, $contextual) { tr/A-Za-z/N-ZA-Mn-za-m/ }
try $RE{profanity}{-keep};
pass $profane;
try $RE{profanity}{contextual}{-keep};
pass $contextual;
try $RE{URI}{HTTP}{-keep};
'http', 'www.example.com', '80',
'/some/path?query', 'some/path?query', 'some/path', 'query';
'http', 'www.example.com', undef, undef, undef, undef, undef;
'http', 'www.example.com', undef,
'/some/path?query', 'some/path?query', 'some/path', 'query';
'http', 'www.example.com', undef,
'/some/path', 'some/path', 'some/path', undef;
try $RE{URI}{HTTP}{-keep}{-scheme => "https?"};
'https', 'www.example.com', '80',
'/some/path?query', 'some/path?query', 'some/path', 'query';
'https', 'www.example.com', undef, undef, undef, undef, undef;
'http', 'www.example.com', undef,
'/some/path?query', 'some/path?query', 'some/path', 'query';
'http', 'www.example.com', undef,
'/some/path', 'some/path', 'some/path', undef;
try $RE{URI}{FTP}{-keep};
'ftp', undef, undef, 'ftp.example.com', undef,
'/some/path/somewhere', 'some/path/somewhere',
'some/path/somewhere', undef;
'ftp', 'abigail', undef, 'ftp.example.com', 21,
'/some/path/somewhere;type=a', 'some/path/somewhere;type=a',
'some/path/somewhere', 'a';
try $RE{URI}{FTP}{-keep}{-password};
'ftp', 'abigail', 'secret', 'ftp.example.com', 21,
'/some/path/somewhere;type=a', 'some/path/somewhere;type=a',
'some/path/somewhere', 'a';
try $RE{URI}{tel}{-keep};
pass 'tel:+123-456-7890;isub=543', 'tel', '+123-456-7890;isub=543';