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#!./perl -w
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
}
my $debug = 1;
##
## If the markers used are changed (search for "MARKER1" in regcomp.c),
## update only these two variables, and leave the {#} in the @death/@warning
## arrays below. The {#} is a meta-marker -- it marks where the marker should
## go.
my $marker1 = "<-- HERE";
my $marker2 = " <-- HERE ";
##
## Key-value pairs of code/error of code that should have fatal errors.
##
eval 'use Config'; # assume defaults if fail
our %Config;
my $inf_m1 = ($Config{reg_infty} || 32767) - 1;
my $inf_p1 = $inf_m1 + 2;
my @death =
(
'/[[=foo=]]/' => 'POSIX syntax [= =] is reserved for future extensions in regex; marked by {#} in m/[[=foo=]{#}]/',
'/(?<= .*)/' => 'Variable length lookbehind not implemented in regex; marked by {#} in m/(?<= .*){#}/',
'/(?<= x{1000})/' => 'Lookbehind longer than 255 not implemented in regex; marked by {#} in m/(?<= x{1000}){#}/',
'/(?@)/' => 'Sequence (?@...) not implemented in regex; marked by {#} in m/(?@{#})/',
'/(?{ 1/' => 'Sequence (?{...}) not terminated or not {}-balanced in regex; marked by {#} in m/(?{{#} 1/',
'/(?(1x))/' => 'Switch condition not recognized in regex; marked by {#} in m/(?(1x{#}))/',
'/(?(1)x|y|z)/' => 'Switch (?(condition)... contains too many branches in regex; marked by {#} in m/(?(1)x|y|{#}z)/',
'/(?(x)y|x)/' => 'Unknown switch condition (?(x) in regex; marked by {#} in m/(?({#}x)y|x)/',
'/(?/' => 'Sequence (? incomplete in regex; marked by {#} in m/(?{#}/',
'/(?;x/' => 'Sequence (?;...) not recognized in regex; marked by {#} in m/(?;{#}x/',
'/(?<;x/' => 'Sequence (?<;...) not recognized in regex; marked by {#} in m/(?<;{#}x/',
'/((x)/' => 'Unmatched ( in regex; marked by {#} in m/({#}(x)/',
"/x{$inf_p1}/" => "Quantifier in {,} bigger than $inf_m1 in regex; marked by {#} in m/x{{#}$inf_p1}/",
'/x{3,1}/' => 'Can\'t do {n,m} with n > m in regex; marked by {#} in m/x{3,1}{#}/',
'/x**/' => 'Nested quantifiers in regex; marked by {#} in m/x**{#}/',
'/x[/' => 'Unmatched [ in regex; marked by {#} in m/x[{#}/',
'/*/', => 'Quantifier follows nothing in regex; marked by {#} in m/*{#}/',
'/\p{x/' => 'Missing right brace on \p{} in regex; marked by {#} in m/\p{{#}x/',
'/[\p{x]/' => 'Missing right brace on \p{} in regex; marked by {#} in m/[\p{{#}x]/',
'/(x)\2/' => 'Reference to nonexistent group in regex; marked by {#} in m/(x)\2{#}/',
'my $m = "\\\"; $m =~ $m', => 'Trailing \ in regex m/\/',
'/\x{1/' => 'Missing right brace on \x{} in regex; marked by {#} in m/\x{{#}1/',
'/[\x{X]/' => 'Missing right brace on \x{} in regex; marked by {#} in m/[\x{{#}X]/',
'/[[:barf:]]/' => 'POSIX class [:barf:] unknown in regex; marked by {#} in m/[[:barf:]{#}]/',
'/[[=barf=]]/' => 'POSIX syntax [= =] is reserved for future extensions in regex; marked by {#} in m/[[=barf=]{#}]/',
'/[[.barf.]]/' => 'POSIX syntax [. .] is reserved for future extensions in regex; marked by {#} in m/[[.barf.]{#}]/',
'/[z-a]/' => 'Invalid [] range "z-a" in regex; marked by {#} in m/[z-a{#}]/',
'/\p/' => 'Empty \p{} in regex; marked by {#} in m/\p{#}/',
'/\P{}/' => 'Empty \P{} in regex; marked by {#} in m/\P{{#}}/',
);
##
## Key-value pairs of code/error of code that should have non-fatal warnings.
##
@warning = (
"m/(?p{ 'a' })/" => "(?p{}) is deprecated - use (??{}) in regex; marked by {#} in m/(?p{#}{ 'a' })/",
'm/\b*/' => '\b* matches null string many times in regex; marked by {#} in m/\b*{#}/',
'm/[:blank:]/' => 'POSIX syntax [: :] belongs inside character classes in regex; marked by {#} in m/[:blank:]{#}/',
"m'[\\y]'" => 'Unrecognized escape \y in character class passed through in regex; marked by {#} in m/[\y{#}]/',
'm/[a-\d]/' => 'False [] range "a-\d" in regex; marked by {#} in m/[a-\d{#}]/',
'm/[\w-x]/' => 'False [] range "\w-" in regex; marked by {#} in m/[\w-{#}x]/',
'm/[a-\pM]/' => 'False [] range "a-\pM" in regex; marked by {#} in m/[a-\pM{#}]/',
'm/[\pM-x]/' => 'False [] range "\pM-" in regex; marked by {#} in m/[\pM-{#}x]/',
"m'\\y'" => 'Unrecognized escape \y passed through in regex; marked by {#} in m/\y{#}/',
);
my $total = (@death + @warning)/2;
# utf8 is a noop on EBCDIC platforms, it is not fatal
my $Is_EBCDIC = (ord('A') == 193);
if ($Is_EBCDIC) {
my @utf8_death = grep(/utf8/, @death);
$total = $total - @utf8_death;
}
print "1..$total\n";
my $count = 0;
while (@death)
{
my $regex = shift @death;
my $result = shift @death;
# skip the utf8 test on EBCDIC since they do not die
next if ($Is_EBCDIC && $regex =~ /utf8/);
$count++;
$_ = "x";
eval $regex;
if (not $@) {
print "# oops, $regex didn't die\nnot ok $count\n";
next;
}
chomp $@;
$result =~ s/{\#}/$marker1/;
$result =~ s/{\#}/$marker2/;
$result .= " at ";
if ($@ !~ /^\Q$result/) {
print "# For $regex, expected:\n# $result\n# Got:\n# $@\n#\nnot ";
}
print "ok $count - $regex\n";
}
our $warning;
$SIG{__WARN__} = sub { $warning = shift };
while (@warning)
{
$count++;
my $regex = shift @warning;
my $result = shift @warning;
undef $warning;
$_ = "x";
eval $regex;
if ($@)
{
print "# oops, $regex died with:\n#\t$@#\nnot ok $count\n";
next;
}
if (not $warning)
{
print "# oops, $regex didn't generate a warning\nnot ok $count\n";
next;
}
$result =~ s/{\#}/$marker1/;
$result =~ s/{\#}/$marker2/;
$result .= " at ";
if ($warning !~ /^\Q$result/)
{
print <<"EOM";
# For $regex, expected:
# $result
# Got:
# $warning
#
not ok $count
EOM
next;
}
print "ok $count - $regex\n";
}
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