#!./perl -w
$|=1; # outherwise things get mixed up in output
BEGIN {
chdir 't' if -d 't';
require './test.pl';
set_up_inc( qw '../lib ../ext/re' );
eval 'require Config'; # assume defaults if this fails
}
skip_all_without_unicode_tables();
use strict;
use open qw(:utf8 :std);
# Kind of a kludge to mark warnings to be expected only if we are testing
# under "use re 'strict'"
my $only_strict_marker = ':expected_only_under_strict';
## If the markers used are changed (search for "MARKER1" in regcomp.c),
## update only these two regexs, and leave the {#} in the @death/@warning
## arrays below. The {#} is a meta-marker -- it marks where the marker should
## go.
sub fixup_expect ($$) {
# Fixes up the expected results by inserting the boiler plate text.
# Returns empty string if that is what is expected. Otherwise, handles
# either a scalar, turning it into a single element array; or a ref to an
# array, adjusting each element. If called in array context, returns an
# array, otherwise the join of all elements.
# The string $only_strict_marker will be removed from any expect line it
# begins, and if $strict is not true, that expect line will be removed
# from the output (hence won't be expected)
my ($expect_ref, $strict) = @_;
return "" if $expect_ref eq "";
my @expect;
if (ref $expect_ref) {
@expect = @$expect_ref;
}
else {
@expect = $expect_ref;
}
my @new_expect;
foreach my $element (@expect) {
$element =~ s/\{\#\}/in regex; marked by <-- HERE in/;
$element =~ s/\{\#\}/ <-- HERE /;
$element .= " at ";
next if $element =~ s/ ^ $only_strict_marker \s* //x && ! $strict;
push @new_expect, $element;
}
return wantarray ? @new_expect : join "", @new_expect;
}
## Because we don't "use utf8" in this file, we need to do some extra legwork
## for the utf8 tests: Prepend 'use utf8' to the pattern, and mark the strings
## to check against as UTF-8, but for this all to work properly, the character
## 'ネ' (U+30CD) is required in each pattern somewhere as a marker.
##
## This also creates a second variant of the tests to check if the
## latin1 error messages are working correctly. Because we don't 'use utf8',
## we can't tell if something is UTF-8 or Latin1, so you need the suffix
## '; no latin1' to not have the second variant.
my $l1 = "\x{ef}";
my $utf8 = "\x{30cd}";
utf8::encode($utf8);
sub mark_as_utf8 {
my @ret;
for (my $i = 0; $i < @_; $i += 2) {
my $pat = $_[$i];
my $msg = $_[$i+1];
my $l1_pat = $pat =~ s/$utf8/$l1/gr;
my $l1_msg;
$pat = "use utf8; $pat";
if (ref $msg) {
$l1_msg = [ map { s/$utf8/$l1/gr } @$msg ];
@$msg = map { my $c = $_; utf8::decode($c); $c } @$msg;
}
else {
$l1_msg = $msg =~ s/$utf8/$l1/gr;
utf8::decode($msg);
}
push @ret, $pat => $msg;
push @ret, $l1_pat => $l1_msg unless $l1_pat =~ /#no latin1/;
}
return @ret;
}
my $inf_m1 = ($Config::Config{reg_infty} || 32767) - 1;
my $inf_p1 = $inf_m1 + 2;
my $B_hex = sprintf("\\x%02X", ord "B");
my $low_mixed_alpha = ('A' lt 'a') ? 'A' : 'a';
my $high_mixed_alpha = ('A' lt 'a') ? 'a' : 'A';
my $low_mixed_digit = ('A' lt '0') ? 'A' : '0';
my $high_mixed_digit = ('A' lt '0') ? '0' : 'A';
my $colon_hex = sprintf "%02X", ord(":");
my $tab_hex = sprintf "%02X", ord("\t");
##
## Key-value pairs of code/error of code that should have fatal errors.
##
my @death =
(
'/[[=foo=]]/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/[[=foo=]{#}]/',
'/(?<= .*)/' => 'Variable length lookbehind not implemented in regex m/(?<= .*)/',
'/(?<= x{1000})/' => 'Lookbehind longer than 255 not implemented in regex m/(?<= x{1000})/',
'/(?@)/' => 'Sequence (?@...) not implemented {#} m/(?@{#})/',
'/(?{ 1/' => 'Missing right curly or square bracket',
'/(?(1x))/' => 'Switch condition not recognized {#} m/(?(1x{#}))/',
'/(?(1x(?#)))/'=> 'Switch condition not recognized {#} m/(?(1x{#}(?#)))/',
'/(?(1)/' => 'Switch (?(condition)... not terminated {#} m/(?(1){#}/',
'/(?(1)x/' => 'Switch (?(condition)... not terminated {#} m/(?(1)x{#}/',
'/(?(1)x|y/' => 'Switch (?(condition)... not terminated {#} m/(?(1)x|y{#}/',
'/(?(1)x|y|z)/' => 'Switch (?(condition)... contains too many branches {#} m/(?(1)x|y|{#}z)/',
'/(?(x)y|x)/' => 'Unknown switch condition (?(...)) {#} m/(?(x{#})y|x)/',
'/(?(??{}))/' => 'Unknown switch condition (?(...)) {#} m/(?(?{#}?{}))/',
'/(?(?[]))/' => 'Unknown switch condition (?(...)) {#} m/(?(?{#}[]))/',
'/(?/' => 'Sequence (? incomplete {#} m/(?{#}/',
'/(?;x/' => 'Sequence (?;...) not recognized {#} m/(?;{#}x/',
'/(?<;x/' => 'Group name must start with a non-digit word character {#} m/(?<;{#}x/',
'/(?\ix/' => 'Sequence (?\...) not recognized {#} m/(?\{#}ix/',
'/(?\mx/' => 'Sequence (?\...) not recognized {#} m/(?\{#}mx/',
'/(?\:x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}:x/',
'/(?\=x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}=x/',
'/(?\!x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}!x/',
'/(?\<=x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}<=x/',
'/(?\<!x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}<!x/',
'/(?\>x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}>x/',
'/(?^-i:foo)/' => 'Sequence (?^-...) not recognized {#} m/(?^-{#}i:foo)/',
'/(?^-i)foo/' => 'Sequence (?^-...) not recognized {#} m/(?^-{#}i)foo/',
'/(?^d:foo)/' => 'Sequence (?^d...) not recognized {#} m/(?^d{#}:foo)/',
'/(?^d)foo/' => 'Sequence (?^d...) not recognized {#} m/(?^d{#})foo/',
'/(?^lu:foo)/' => 'Regexp modifiers "l" and "u" are mutually exclusive {#} m/(?^lu{#}:foo)/',
'/(?^lu)foo/' => 'Regexp modifiers "l" and "u" are mutually exclusive {#} m/(?^lu{#})foo/',
'/(?da:foo)/' => 'Regexp modifiers "d" and "a" are mutually exclusive {#} m/(?da{#}:foo)/',
'/(?lil:foo)/' => 'Regexp modifier "l" may not appear twice {#} m/(?lil{#}:foo)/',
'/(?aaia:foo)/' => 'Regexp modifier "a" may appear a maximum of twice {#} m/(?aaia{#}:foo)/',
'/(?i-l:foo)/' => 'Regexp modifier "l" may not appear after the "-" {#} m/(?i-l{#}:foo)/',
'/((x)/' => 'Unmatched ( {#} m/({#}(x)/',
'/{(}/' => 'Unmatched ( {#} m/{({#}}/', # [perl #127599]
"/x{$inf_p1}/" => "Quantifier in {,} bigger than $inf_m1 {#} m/x{{#}$inf_p1}/",
'/x**/' => 'Nested quantifiers {#} m/x**{#}/',
'/x[/' => 'Unmatched [ {#} m/x[{#}/',
'/*/', => 'Quantifier follows nothing {#} m/*{#}/',
'/\p{x/' => 'Missing right brace on \p{} {#} m/\p{{#}x/',
'/[\p{x]/' => 'Missing right brace on \p{} {#} m/[\p{{#}x]/',
'/(x)\2/' => 'Reference to nonexistent group {#} m/(x)\2{#}/',
'/\g/' => 'Unterminated \g... pattern {#} m/\g{#}/',
'/\g{1/' => 'Unterminated \g{...} pattern {#} m/\g{1{#}/',
'my $m = "\\\"; $m =~ $m', => 'Trailing \ in regex m/\/',
'/\x{1/' => 'Missing right brace on \x{} {#} m/\x{1{#}/',
'/\x{X/' => 'Missing right brace on \x{} {#} m/\x{{#}X/',
'/[\x{X]/' => 'Missing right brace on \x{} {#} m/[\x{{#}X]/',
'/[\x{A]/' => 'Missing right brace on \x{} {#} m/[\x{A{#}]/',
'/\o{1/' => 'Missing right brace on \o{ {#} m/\o{1{#}/',
'/\o{X/' => 'Missing right brace on \o{ {#} m/\o{{#}X/',
'/[\o{X]/' => 'Missing right brace on \o{ {#} m/[\o{{#}X]/',
'/[\o{7]/' => 'Missing right brace on \o{ {#} m/[\o{7{#}]/',
'/[[:barf:]]/' => 'POSIX class [:barf:] unknown {#} m/[[:barf:]{#}]/',
'/[[=barf=]]/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/[[=barf=]{#}]/',
'/[[.barf.]]/' => 'POSIX syntax [. .] is reserved for future extensions {#} m/[[.barf.]{#}]/',
'/[z-a]/' => 'Invalid [] range "z-a" {#} m/[z-a{#}]/',
'/\p/' => 'Empty \p {#} m/\p{#}/',
'/\P/' => 'Empty \P {#} m/\P{#}/',
'/\p{}/' => 'Empty \p{} {#} m/\p{{#}}/',
'/\P{}/' => 'Empty \P{} {#} m/\P{{#}}/',
'/a\b{cde/' => 'Missing right brace on \b{} {#} m/a\b{{#}cde/',
'/a\B{cde/' => 'Missing right brace on \B{} {#} m/a\B{{#}cde/',
'/\b{}/' => 'Empty \b{} {#} m/\b{}{#}/',
'/\B{}/' => 'Empty \B{} {#} m/\B{}{#}/',
'/\b{gc}/' => "'gc' is an unknown bound type {#} m/\\b{gc{#}}/",
'/\B{gc}/' => "'gc' is an unknown bound type {#} m/\\B{gc{#}}/",
'/(?[[[::]]])/' => "Syntax error in (?[...]) in regex m/(?[[[::]]])/",
'/(?[[[:w:]]])/' => "Syntax error in (?[...]) in regex m/(?[[[:w:]]])/",
'/(?[[:w:]])/' => "",
'/[][[:alpha:]]' => "", # [perl #127581]
'/([.].*)[.]/' => "", # [perl #127582]
'/[.].*[.]/' => "", # [perl #127604]
'/(?[a])/' => 'Unexpected character {#} m/(?[a{#}])/',
'/(?[ + \t ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/(?[ +{#} \t ])/',
'/(?[ \cK - ( + \t ) ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/(?[ \cK - ( +{#} \t ) ])/',
'/(?[ \cK ( \t ) ])/' => 'Unexpected \'(\' with no preceding operator {#} m/(?[ \cK ({#} \t ) ])/',
'/(?[ \cK \t ])/' => 'Operand with no preceding operator {#} m/(?[ \cK \t{#} ])/',
'/(?[ \0004 ])/' => 'Need exactly 3 octal digits {#} m/(?[ \0004 {#}])/',
'/(?[ \05 ])/' => 'Need exactly 3 octal digits {#} m/(?[ \05 {#}])/',
'/(?[ \o{1038} ])/' => 'Non-octal character {#} m/(?[ \o{1038{#}} ])/',
'/(?[ \o{} ])/' => 'Number with no digits {#} m/(?[ \o{}{#} ])/',
'/(?[ \x{defg} ])/' => 'Non-hex character {#} m/(?[ \x{defg{#}} ])/',
'/(?[ \xabcdef ])/' => 'Use \\x{...} for more than two hex characters {#} m/(?[ \xabc{#}def ])/',
'/(?[ \x{} ])/' => 'Number with no digits {#} m/(?[ \x{}{#} ])/',
'/(?[ \cK + ) ])/' => 'Unexpected \')\' {#} m/(?[ \cK + ){#} ])/',
'/(?[ \cK + ])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[ \cK + {#}])/',
'/(?[ ( ) ])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[ ( ){#} ])/',
'/(?[[0]+()+])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[[0]+(){#}+])/',
'/(?[ \p{foo} ])/' => 'Can\'t find Unicode property definition "foo" {#} m/(?[ \p{foo}{#} ])/',
'/(?[ \p{ foo = bar } ])/' => 'Can\'t find Unicode property definition "foo = bar" {#} m/(?[ \p{ foo = bar }{#} ])/',
'/(?[ \8 ])/' => 'Unrecognized escape \8 in character class {#} m/(?[ \8{#} ])/',
'/(?[ \t ]/' => 'Syntax error in (?[...]) in regex m/(?[ \t ]/',
'/(?[ [ \t ]/' => 'Syntax error in (?[...]) in regex m/(?[ [ \t ]/',
'/(?[ \t ] ]/' => 'Syntax error in (?[...]) in regex m/(?[ \t ] ]/',
'/(?[ [ ] ]/' => 'Syntax error in (?[...]) in regex m/(?[ [ ] ]/',
'/(?[ \t + \e # This was supposed to be a comment ])/' => 'Syntax error in (?[...]) in regex m/(?[ \t + \e # This was supposed to be a comment ])/',
'/(?[ ])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[ {#}])/',
'm/(?[[a-\d]])/' => 'False [] range "a-\d" {#} m/(?[[a-\d{#}]])/',
'm/(?[[\w-x]])/' => 'False [] range "\w-" {#} m/(?[[\w-{#}x]])/',
'm/(?[[a-\pM]])/' => 'False [] range "a-\pM" {#} m/(?[[a-\pM{#}]])/',
'm/(?[[\pM-x]])/' => 'False [] range "\pM-" {#} m/(?[[\pM-{#}x]])/',
'm/(?[[^\N{LATIN CAPITAL LETTER A WITH MACRON AND GRAVE}]])/' => '\N{} in inverted character class or as a range end-point is restricted to one character {#} m/(?[[^\N{U+100.300{#}}]])/',
'm/(?[ \p{Digit} & (?(?[ \p{Thai} | \p{Lao} ]))])/' => 'Sequence (?(...) not recognized {#} m/(?[ \p{Digit} & (?({#}?[ \p{Thai} | \p{Lao} ]))])/',
'm/(?[ \p{Digit} & (?:(?[ \p{Thai} | \p{Lao} ]))])/' => 'Expecting \'(?flags:(?[...\' {#} m/(?[ \p{Digit} & (?{#}:(?[ \p{Thai} | \p{Lao} ]))])/',
'm/\o{/' => 'Missing right brace on \o{ {#} m/\o{{#}/',
'm/\o/' => 'Missing braces on \o{} {#} m/\o{#}/',
'm/\o{}/' => 'Number with no digits {#} m/\o{}{#}/',
'm/[\o{]/' => 'Missing right brace on \o{ {#} m/[\o{{#}]/',
'm/[\o]/' => 'Missing braces on \o{} {#} m/[\o{#}]/',
'm/[\o{}]/' => 'Number with no digits {#} m/[\o{}{#}]/',
'm/(?^-i:foo)/' => 'Sequence (?^-...) not recognized {#} m/(?^-{#}i:foo)/',
'm/\87/' => 'Reference to nonexistent group {#} m/\87{#}/',
'm/a\87/' => 'Reference to nonexistent group {#} m/a\87{#}/',
'm/a\97/' => 'Reference to nonexistent group {#} m/a\97{#}/',
'm/(*DOOF)/' => 'Unknown verb pattern \'DOOF\' {#} m/(*DOOF){#}/',
'm/(?&a/' => 'Sequence (?&... not terminated {#} m/(?&a{#}/',
'm/(?P=/' => 'Sequence ?P=... not terminated {#} m/(?P={#}/',
"m/(?'/" => "Sequence (?'... not terminated {#} m/(?'{#}/",
"m/(?</" => "Sequence (?<... not terminated {#} m/(?<{#}/",
'm/(?&/' => 'Sequence (?&... not terminated {#} m/(?&{#}/',
'm/(?(</' => 'Sequence (?(<... not terminated {#} m/(?(<{#}/',
"m/(?('/" => "Sequence (?('... not terminated {#} m/(?('{#}/",
'm/\g{/' => 'Sequence \g{... not terminated {#} m/\g{{#}/',
'm/\k</' => 'Sequence \k<... not terminated {#} m/\k<{#}/',
'm/\cß/' => "Character following \"\\c\" must be printable ASCII",
'/((?# This is a comment in the middle of a token)?:foo)/' => 'In \'(?...)\', the \'(\' and \'?\' must be adjacent {#} m/((?# This is a comment in the middle of a token)?{#}:foo)/',
'/((?# This is a comment in the middle of a token)*FAIL)/' => 'In \'(*VERB...)\', the \'(\' and \'*\' must be adjacent {#} m/((?# This is a comment in the middle of a token)*{#}FAIL)/',
'/(?[\ &!])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[\ &!{#}])/', # [perl #126180]
'/(?[\ +!])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[\ +!{#}])/', # [perl #126180]
'/(?[\ -!])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[\ -!{#}])/', # [perl #126180]
'/(?[\ ^!])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[\ ^!{#}])/', # [perl #126180]
'/(?[\ |!])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[\ |!{#}])/', # [perl #126180]
'/(?[()-!])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[(){#}-!])/', # [perl #126204]
'/(?[!()])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[!(){#}])/', # [perl #126404]
'/\w{/' => 'Unescaped left brace in regex is illegal here {#} m/\w{{#}/',
'/\q{/' => 'Unescaped left brace in regex is illegal here {#} m/\q{{#}/',
'/\A{/' => 'Unescaped left brace in regex is illegal here {#} m/\A{{#}/',
'/:{4,a}/' => 'Unescaped left brace in regex is illegal here {#} m/:{{#}4,a}/',
'/xa{3\,4}y/' => 'Unescaped left brace in regex is illegal here {#} m/xa{{#}3\,4}y/',
'/abc/xix' => "",
'/(?xmsixp:abc)/' => "",
'/(?xmsixp)abc/' => "",
'/(?xxxx:abc)/' => "",
'/(?<=/' => 'Sequence (?... not terminated {#} m/(?<={#}/', # [perl #128170]
);
# These are messages that are warnings when not strict; death under 'use re
# "strict". See comment before @warnings as to why some have a \x{100} in
# them. This array has 3 elements per construct. [0] is the regex to use;
# [1] is the message under no strict, and [2] is under strict.
my @death_only_under_strict = (
'm/\xABC/' => "",
=> 'Use \x{...} for more than two hex characters {#} m/\xABC{#}/',
'm/[\xABC]/' => "",
=> 'Use \x{...} for more than two hex characters {#} m/[\xABC{#}]/',
# XXX This is a confusing error message. The G isn't ignored; it just
# terminates the \x. Also some messages below are missing the <-- HERE,
# aren't all category 'regexp'. (Hence we have to turn off 'digit'
# messages as well below)
'm/\xAG/' => 'Illegal hexadecimal digit \'G\' ignored',
=> 'Non-hex character {#} m/\xAG{#}/',
'm/[\xAG]/' => 'Illegal hexadecimal digit \'G\' ignored',
=> 'Non-hex character {#} m/[\xAG{#}]/',
'm/\o{789}/' => 'Non-octal character \'8\'. Resolved as "\o{7}"',
=> 'Non-octal character {#} m/\o{78{#}9}/',
'm/[\o{789}]/' => 'Non-octal character \'8\'. Resolved as "\o{7}"',
=> 'Non-octal character {#} m/[\o{78{#}9}]/',
'm/\x{}/' => "",
=> 'Number with no digits {#} m/\x{}{#}/',
'm/[\x{}]/' => "",
=> 'Number with no digits {#} m/[\x{}{#}]/',
'm/\x{ABCDEFG}/' => 'Illegal hexadecimal digit \'G\' ignored',
=> 'Non-hex character {#} m/\x{ABCDEFG{#}}/',
'm/[\x{ABCDEFG}]/' => 'Illegal hexadecimal digit \'G\' ignored',
=> 'Non-hex character {#} m/[\x{ABCDEFG{#}}]/',
"m'[\\y]\\x{100}'" => 'Unrecognized escape \y in character class passed through {#} m/[\y{#}]\x{100}/',
=> 'Unrecognized escape \y in character class {#} m/[\y{#}]\x{100}/',
'm/[a-\d]\x{100}/' => 'False [] range "a-\d" {#} m/[a-\d{#}]\x{100}/',
=> 'False [] range "a-\d" {#} m/[a-\d{#}]\x{100}/',
'm/[\w-x]\x{100}/' => 'False [] range "\w-" {#} m/[\w-{#}x]\x{100}/',
=> 'False [] range "\w-" {#} m/[\w-{#}x]\x{100}/',
'm/[a-\pM]\x{100}/' => 'False [] range "a-\pM" {#} m/[a-\pM{#}]\x{100}/',
=> 'False [] range "a-\pM" {#} m/[a-\pM{#}]\x{100}/',
'm/[\pM-x]\x{100}/' => 'False [] range "\pM-" {#} m/[\pM-{#}x]\x{100}/',
=> 'False [] range "\pM-" {#} m/[\pM-{#}x]\x{100}/',
'm/[^\N{LATIN CAPITAL LETTER A WITH MACRON AND GRAVE}]/' => 'Using just the first character returned by \N{} in character class {#} m/[^\N{U+100.300}{#}]/',
=> '\N{} in inverted character class or as a range end-point is restricted to one character {#} m/[^\N{U+100.300{#}}]/',
'm/[\x03-\N{LATIN CAPITAL LETTER A WITH MACRON AND GRAVE}]/' => 'Using just the first character returned by \N{} in character class {#} m/[\x03-\N{U+100.300}{#}]/',
=> '\N{} in inverted character class or as a range end-point is restricted to one character {#} m/[\x03-\N{U+100.300{#}}]/',
'm/[\N{LATIN CAPITAL LETTER A WITH MACRON AND GRAVE}-\x{10FFFF}]/' => 'Using just the first character returned by \N{} in character class {#} m/[\N{U+100.300}{#}-\x{10FFFF}]/',
=> '\N{} in inverted character class or as a range end-point is restricted to one character {#} m/[\N{U+100.300{#}}-\x{10FFFF}]/',
'/[\08]/' => '\'\08\' resolved to \'\o{0}8\' {#} m/[\08{#}]/',
=> 'Need exactly 3 octal digits {#} m/[\08{#}]/',
'/[\018]/' => '\'\018\' resolved to \'\o{1}8\' {#} m/[\018{#}]/',
=> 'Need exactly 3 octal digits {#} m/[\018{#}]/',
'/[\_\0]/' => "",
=> 'Need exactly 3 octal digits {#} m/[\_\0]{#}/',
'/[\07]/' => "",
=> 'Need exactly 3 octal digits {#} m/[\07]{#}/',
'/[\0005]/' => "",
=> 'Need exactly 3 octal digits {#} m/[\0005]{#}/',
'/[\8\9]\x{100}/' => ['Unrecognized escape \8 in character class passed through {#} m/[\8{#}\9]\x{100}/',
'Unrecognized escape \9 in character class passed through {#} m/[\8\9{#}]\x{100}/',
],
=> 'Unrecognized escape \8 in character class {#} m/[\8{#}\9]\x{100}/',
'/[a-\d]\x{100}/' => 'False [] range "a-\d" {#} m/[a-\d{#}]\x{100}/',
=> 'False [] range "a-\d" {#} m/[a-\d{#}]\x{100}/',
'/[\d-b]\x{100}/' => 'False [] range "\d-" {#} m/[\d-{#}b]\x{100}/',
=> 'False [] range "\d-" {#} m/[\d-{#}b]\x{100}/',
'/[\s-\d]\x{100}/' => 'False [] range "\s-" {#} m/[\s-{#}\d]\x{100}/',
=> 'False [] range "\s-" {#} m/[\s-{#}\d]\x{100}/',
'/[\d-\s]\x{100}/' => 'False [] range "\d-" {#} m/[\d-{#}\s]\x{100}/',
=> 'False [] range "\d-" {#} m/[\d-{#}\s]\x{100}/',
'/[a-[:digit:]]\x{100}/' => 'False [] range "a-[:digit:]" {#} m/[a-[:digit:]{#}]\x{100}/',
=> 'False [] range "a-[:digit:]" {#} m/[a-[:digit:]{#}]\x{100}/',
'/[[:digit:]-b]\x{100}/' => 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}b]\x{100}/',
=> 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}b]\x{100}/',
'/[[:alpha:]-[:digit:]]\x{100}/' => 'False [] range "[:alpha:]-" {#} m/[[:alpha:]-{#}[:digit:]]\x{100}/',
=> 'False [] range "[:alpha:]-" {#} m/[[:alpha:]-{#}[:digit:]]\x{100}/',
'/[[:digit:]-[:alpha:]]\x{100}/' => 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}[:alpha:]]\x{100}/',
=> 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}[:alpha:]]\x{100}/',
'/[a\zb]\x{100}/' => 'Unrecognized escape \z in character class passed through {#} m/[a\z{#}b]\x{100}/',
=> 'Unrecognized escape \z in character class {#} m/[a\z{#}b]\x{100}/',
);
# These need the character 'ネ' as a marker for mark_as_utf8()
my @death_utf8 = mark_as_utf8(
'/ネ(?<= .*)/' => 'Variable length lookbehind not implemented in regex m/ネ(?<= .*)/',
'/(?<= ネ{1000})/' => 'Lookbehind longer than 255 not implemented in regex m/(?<= ネ{1000})/',
'/ネ(?ネ)ネ/' => 'Sequence (?ネ...) not recognized {#} m/ネ(?ネ{#})ネ/',
'/ネ(?(1ネ))ネ/' => 'Switch condition not recognized {#} m/ネ(?(1ネ{#}))ネ/',
'/(?(1)ネ|y|ヌ)/' => 'Switch (?(condition)... contains too many branches {#} m/(?(1)ネ|y|{#}ヌ)/',
'/(?(ネ)y|ネ)/' => 'Unknown switch condition (?(...)) {#} m/(?(ネ{#})y|ネ)/',
'/ネ(?/' => 'Sequence (? incomplete {#} m/ネ(?{#}/',
'/ネ(?;ネ/' => 'Sequence (?;...) not recognized {#} m/ネ(?;{#}ネ/',
'/ネ(?<;ネ/' => 'Group name must start with a non-digit word character {#} m/ネ(?<;{#}ネ/',
'/ネ(?\ixネ/' => 'Sequence (?\...) not recognized {#} m/ネ(?\{#}ixネ/',
'/ネ(?^lu:ネ)/' => 'Regexp modifiers "l" and "u" are mutually exclusive {#} m/ネ(?^lu{#}:ネ)/',
'/ネ(?lil:ネ)/' => 'Regexp modifier "l" may not appear twice {#} m/ネ(?lil{#}:ネ)/',
'/ネ(?aaia:ネ)/' => 'Regexp modifier "a" may appear a maximum of twice {#} m/ネ(?aaia{#}:ネ)/',
'/ネ(?i-l:ネ)/' => 'Regexp modifier "l" may not appear after the "-" {#} m/ネ(?i-l{#}:ネ)/',
'/ネ((ネ)/' => 'Unmatched ( {#} m/ネ({#}(ネ)/',
"/ネ{$inf_p1}ネ/" => "Quantifier in {,} bigger than $inf_m1 {#} m/ネ{{#}$inf_p1}ネ/",
'/ネ**ネ/' => 'Nested quantifiers {#} m/ネ**{#}ネ/',
'/ネ[ネ/' => 'Unmatched [ {#} m/ネ[{#}ネ/',
'/*ネ/', => 'Quantifier follows nothing {#} m/*{#}ネ/',
'/ネ\p{ネ/' => 'Missing right brace on \p{} {#} m/ネ\p{{#}ネ/',
'/(ネ)\2ネ/' => 'Reference to nonexistent group {#} m/(ネ)\2{#}ネ/',
'/\g{ネ/; #no latin1' => 'Sequence \g{... not terminated {#} m/\g{ネ{#}/',
'my $m = "ネ\\\"; $m =~ $m', => 'Trailing \ in regex m/ネ\/',
'/\x{ネ/' => 'Missing right brace on \x{} {#} m/\x{{#}ネ/',
'/ネ[\x{ネ]ネ/' => 'Missing right brace on \x{} {#} m/ネ[\x{{#}ネ]ネ/',
'/ネ[\x{ネ]/' => 'Missing right brace on \x{} {#} m/ネ[\x{{#}ネ]/',
'/ネ\o{ネ/' => 'Missing right brace on \o{ {#} m/ネ\o{{#}ネ/',
'/ネ[[:ネ:]]ネ/' => "",
'/[ネ-a]ネ/' => 'Invalid [] range "ネ-a" {#} m/[ネ-a{#}]ネ/',
'/ネ\p{}ネ/' => 'Empty \p{} {#} m/ネ\p{{#}}ネ/',
'/ネ(?[[[:ネ]]])ネ/' => "Syntax error in (?[...]) in regex m/ネ(?[[[:ネ]]])ネ/",
'/ネ(?[[[:ネ: ])ネ/' => "Syntax error in (?[...]) in regex m/ネ(?[[[:ネ: ])ネ/",
'/ネ(?[[[::]]])ネ/' => "Syntax error in (?[...]) in regex m/ネ(?[[[::]]])ネ/",
'/ネ(?[[[:ネ:]]])ネ/' => "Syntax error in (?[...]) in regex m/ネ(?[[[:ネ:]]])ネ/",
'/ネ(?[[:ネ:]])ネ/' => "",
'/ネ(?[ネ])ネ/' => 'Unexpected character {#} m/ネ(?[ネ{#}])ネ/',
'/ネ(?[ + [ネ] ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/ネ(?[ +{#} [ネ] ])/',
'/ネ(?[ \cK - ( + [ネ] ) ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/ネ(?[ \cK - ( +{#} [ネ] ) ])/',
'/ネ(?[ \cK ( [ネ] ) ])/' => 'Unexpected \'(\' with no preceding operator {#} m/ネ(?[ \cK ({#} [ネ] ) ])/',
'/ネ(?[ \cK [ネ] ])ネ/' => 'Operand with no preceding operator {#} m/ネ(?[ \cK [ネ{#}] ])ネ/',
'/ネ(?[ \0004 ])ネ/' => 'Need exactly 3 octal digits {#} m/ネ(?[ \0004 {#}])ネ/',
'/(?[ \o{ネ} ])ネ/' => 'Non-octal character {#} m/(?[ \o{ネ{#}} ])ネ/',
'/ネ(?[ \o{} ])ネ/' => 'Number with no digits {#} m/ネ(?[ \o{}{#} ])ネ/',
'/(?[ \x{ネ} ])ネ/' => 'Non-hex character {#} m/(?[ \x{ネ{#}} ])ネ/',
'/(?[ \p{ネ} ])/' => 'Can\'t find Unicode property definition "ネ" {#} m/(?[ \p{ネ}{#} ])/',
'/(?[ \p{ ネ = bar } ])/' => 'Can\'t find Unicode property definition "ネ = bar" {#} m/(?[ \p{ ネ = bar }{#} ])/',
'/ネ(?[ \t ]/' => 'Syntax error in (?[...]) in regex m/ネ(?[ \t ]/',
'/(?[ \t + \e # ネ This was supposed to be a comment ])/' => 'Syntax error in (?[...]) in regex m/(?[ \t + \e # ネ This was supposed to be a comment ])/',
'm/(*ネ)ネ/' => q<Unknown verb pattern 'ネ' {#} m/(*ネ){#}ネ/>,
'/\cネ/' => "Character following \"\\c\" must be printable ASCII",
'/\b{ネ}/' => "'ネ' is an unknown bound type {#} m/\\b{ネ{#}}/",
'/\B{ネ}/' => "'ネ' is an unknown bound type {#} m/\\B{ネ{#}}/",
);
push @death, @death_utf8;
my @death_utf8_only_under_strict = (
"m'ネ[\\y]ネ'" => 'Unrecognized escape \y in character class passed through {#} m/ネ[\y{#}]ネ/',
=> 'Unrecognized escape \y in character class {#} m/ネ[\y{#}]ネ/',
'm/ネ[ネ-\d]ネ/' => 'False [] range "ネ-\d" {#} m/ネ[ネ-\d{#}]ネ/',
=> 'False [] range "ネ-\d" {#} m/ネ[ネ-\d{#}]ネ/',
'm/ネ[\w-ネ]ネ/' => 'False [] range "\w-" {#} m/ネ[\w-{#}ネ]ネ/',
=> 'False [] range "\w-" {#} m/ネ[\w-{#}ネ]ネ/',
'm/ネ[ネ-\pM]ネ/' => 'False [] range "ネ-\pM" {#} m/ネ[ネ-\pM{#}]ネ/',
=> 'False [] range "ネ-\pM" {#} m/ネ[ネ-\pM{#}]ネ/',
'/ネ[ネ-[:digit:]]ネ/' => 'False [] range "ネ-[:digit:]" {#} m/ネ[ネ-[:digit:]{#}]ネ/',
=> 'False [] range "ネ-[:digit:]" {#} m/ネ[ネ-[:digit:]{#}]ネ/',
'/ネ[\d-\s]ネ/' => 'False [] range "\d-" {#} m/ネ[\d-{#}\s]ネ/',
=> 'False [] range "\d-" {#} m/ネ[\d-{#}\s]ネ/',
'/ネ[a\zb]ネ/' => 'Unrecognized escape \z in character class passed through {#} m/ネ[a\z{#}b]ネ/',
=> 'Unrecognized escape \z in character class {#} m/ネ[a\z{#}b]ネ/',
);
# Tests involving a user-defined charnames translator are in pat_advanced.t
# In the following arrays of warnings, the value can be an array of things to
# expect. If the empty string, it means no warning should be raised.
# Key-value pairs of code/error of code that should have non-fatal regexp
# warnings. Most currently have \x{100} appended to them to force them to be
# upgraded to UTF-8, and the first pass restarted. Previously this would
# cause some warnings to be output twice. This tests that that behavior has
# been fixed.
my @warning = (
'm/\b*\x{100}/' => '\b* matches null string many times {#} m/\b*{#}\x{100}/',
'/\b{g}/a' => "Using /u for '\\b{g}' instead of /a {#} m/\\b{g}{#}/",
'/\B{gcb}/a' => "Using /u for '\\B{gcb}' instead of /a {#} m/\\B{gcb}{#}/",
'm/[:blank:]\x{100}/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[:blank:]{#}\x{100}/',
'm/[[:cntrl:]][:^ascii:]\x{100}/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[[:cntrl:]][:^ascii:]{#}\x{100}/',
'm/[[:ascii]]\x{100}/' => "Assuming NOT a POSIX class since there is no terminating ':' {#} m/[[:ascii{#}]]\\x{100}/",
'm/(?[[:word]])\x{100}/' => "Assuming NOT a POSIX class since there is no terminating ':' {#} m/(?[[:word{#}]])\\x{100}/",
"m'\\y\\x{100}'" => 'Unrecognized escape \y passed through {#} m/\y{#}\x{100}/',
'/x{3,1}/' => 'Quantifier {n,m} with n > m can\'t match {#} m/x{3,1}{#}/',
'/\08/' => '\'\08\' resolved to \'\o{0}8\' {#} m/\08{#}/',
'/\018/' => '\'\018\' resolved to \'\o{1}8\' {#} m/\018{#}/',
'/(?=a)*/' => '(?=a)* matches null string many times {#} m/(?=a)*{#}/',
'my $x = \'\m\'; qr/a$x/' => 'Unrecognized escape \m passed through {#} m/a\m{#}/',
'/\q/' => 'Unrecognized escape \q passed through {#} m/\q{#}/',
# These two tests do not include the marker, because regcomp.c no
# longer knows where it goes by the time this warning is emitted.
# See [perl #122680] regcomp warning gives wrong position of
# problem.
'/(?=a){1,3}\x{100}/' => 'Quantifier unexpected on zero-length expression in regex m/(?=a){1,3}\x{100}/',
'/(a|b)(?=a){3}\x{100}/' => 'Quantifier unexpected on zero-length expression in regex m/(a|b)(?=a){3}\x{100}/',
'/\_/' => "",
'/[\006]/' => "",
'/[:alpha:]\x{100}/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[:alpha:]{#}\x{100}/',
'/[:zog:]\x{100}/' => 'POSIX syntax [: :] belongs inside character classes (but this one isn\'t fully valid) {#} m/[:zog:]{#}\x{100}/',
'/[.zog.]\x{100}/' => 'POSIX syntax [. .] belongs inside character classes (but this one isn\'t implemented) {#} m/[.zog.]{#}\x{100}/',
'/[a-b]/' => "",
'/(?c)\x{100}/' => 'Useless (?c) - use /gc modifier {#} m/(?c{#})\x{100}/',
'/(?-c)\x{100}/' => 'Useless (?-c) - don\'t use /gc modifier {#} m/(?-c{#})\x{100}/',
'/(?g)\x{100}/' => 'Useless (?g) - use /g modifier {#} m/(?g{#})\x{100}/',
'/(?-g)\x{100}/' => 'Useless (?-g) - don\'t use /g modifier {#} m/(?-g{#})\x{100}/',
'/(?o)\x{100}/' => 'Useless (?o) - use /o modifier {#} m/(?o{#})\x{100}/',
'/(?-o)\x{100}/' => 'Useless (?-o) - don\'t use /o modifier {#} m/(?-o{#})\x{100}/',
'/(?g-o)\x{100}/' => [ 'Useless (?g) - use /g modifier {#} m/(?g{#}-o)\x{100}/',
'Useless (?-o) - don\'t use /o modifier {#} m/(?g-o{#})\x{100}/',
],
'/(?g-c)\x{100}/' => [ 'Useless (?g) - use /g modifier {#} m/(?g{#}-c)\x{100}/',
'Useless (?-c) - don\'t use /gc modifier {#} m/(?g-c{#})\x{100}/',
],
# (?c) means (?g) error won't be thrown
'/(?o-cg)\x{100}/' => [ 'Useless (?o) - use /o modifier {#} m/(?o{#}-cg)\x{100}/',
'Useless (?-c) - don\'t use /gc modifier {#} m/(?o-c{#}g)\x{100}/',
],
'/(?ogc)\x{100}/' => [ 'Useless (?o) - use /o modifier {#} m/(?o{#}gc)\x{100}/',
'Useless (?g) - use /g modifier {#} m/(?og{#}c)\x{100}/',
'Useless (?c) - use /gc modifier {#} m/(?ogc{#})\x{100}/',
],
'/a{1,1}?\x{100}/' => 'Useless use of greediness modifier \'?\' {#} m/a{1,1}?{#}\x{100}/',
"/(?[ [ % - % ] ])/" => "",
"/(?[ [ : - \\x$colon_hex ] ])\\x{100}/" => "\": - \\x$colon_hex \" is more clearly written simply as \":\" {#} m/(?[ [ : - \\x$colon_hex {#}] ])\\x{100}/",
"/(?[ [ \\x$colon_hex - : ] ])\\x{100}/" => "\"\\x$colon_hex\ - : \" is more clearly written simply as \":\" {#} m/(?[ [ \\x$colon_hex - : {#}] ])\\x{100}/",
"/(?[ [ \\t - \\x$tab_hex ] ])\\x{100}/" => "\"\\t - \\x$tab_hex \" is more clearly written simply as \"\\t\" {#} m/(?[ [ \\t - \\x$tab_hex {#}] ])\\x{100}/",
"/(?[ [ \\x$tab_hex - \\t ] ])\\x{100}/" => "\"\\x$tab_hex\ - \\t \" is more clearly written simply as \"\\t\" {#} m/(?[ [ \\x$tab_hex - \\t {#}] ])\\x{100}/",
"/(?[ [ $B_hex - C ] ])/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/(?[ [ $B_hex - C {#}] ])/",
"/(?[ [ A - $B_hex ] ])/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/(?[ [ A - $B_hex {#}] ])/",
"/(?[ [ $low_mixed_alpha - $high_mixed_alpha ] ])/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/(?[ [ $low_mixed_alpha - $high_mixed_alpha {#}] ])/",
"/(?[ [ $low_mixed_digit - $high_mixed_digit ] ])/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/(?[ [ $low_mixed_digit - $high_mixed_digit {#}] ])/",
"/[alnum]/" => "",
"/[^alnum]/" => "",
'/[:blank]\x{100}/' => 'POSIX syntax [: :] belongs inside character classes (but this one isn\'t fully valid) {#} m/[:blank{#}]\x{100}/',
'/[[:digit]]\x{100}/' => 'Assuming NOT a POSIX class since there is no terminating \':\' {#} m/[[:digit{#}]]\x{100}/', # [perl # 8904]
'/[[:digit:foo]\x{100}/' => 'Assuming NOT a POSIX class since there is no terminating \']\' {#} m/[[:digit:{#}foo]\x{100}/',
'/[[:di#it:foo]\x{100}/x' => 'Assuming NOT a POSIX class since there is no terminating \']\' {#} m/[[:di#it:{#}foo]\x{100}/',
'/[[:dgit]]\x{100}/' => 'Assuming NOT a POSIX class since there is no terminating \':\' {#} m/[[:dgit{#}]]\x{100}/',
'/[[:dgit:foo]\x{100}/' => 'Assuming NOT a POSIX class since there is no terminating \']\' {#} m/[[:dgit:{#}foo]\x{100}/',
'/[[:dgt]]\x{100}/' => "", # Far enough away from a real class to not be recognized as one
'/[[:dgt:foo]\x{100}/' => "",
'/[[:DIGIT]]\x{100}/' => [ 'Assuming NOT a POSIX class since the name must be all lowercase letters {#} m/[[:DIGIT{#}]]\x{100}/',
'Assuming NOT a POSIX class since there is no terminating \':\' {#} m/[[:DIGIT{#}]]\x{100}/',
],
'/[[digit]\x{100}/' => [ 'Assuming NOT a POSIX class since there must be a starting \':\' {#} m/[[{#}digit]\x{100}/',
'Assuming NOT a POSIX class since there is no terminating \':\' {#} m/[[digit{#}]\x{100}/',
],
'/[[alpha]]\x{100}/' => [ 'Assuming NOT a POSIX class since there must be a starting \':\' {#} m/[[{#}alpha]]\x{100}/',
'Assuming NOT a POSIX class since there is no terminating \':\' {#} m/[[alpha{#}]]\x{100}/',
],
'/[[^word]\x{100}/' => [ 'Assuming NOT a POSIX class since the \'^\' must come after the colon {#} m/[[^{#}word]\x{100}/',
'Assuming NOT a POSIX class since there must be a starting \':\' {#} m/[[^{#}word]\x{100}/',
'Assuming NOT a POSIX class since there is no terminating \':\' {#} m/[[^word{#}]\x{100}/',
],
'/[[ ^ : x d i g i t : ] ]\x{100}/' => [ 'Assuming NOT a POSIX class since no blanks are allowed in one {#} m/[[ {#}^ : x d i g i t : ] ]\x{100}/',
'Assuming NOT a POSIX class since the \'^\' must come after the colon {#} m/[[ ^{#} : x d i g i t : ] ]\x{100}/',
'Assuming NOT a POSIX class since no blanks are allowed in one {#} m/[[ ^ {#}: x d i g i t : ] ]\x{100}/',
'Assuming NOT a POSIX class since no blanks are allowed in one {#} m/[[ ^ : {#}x d i g i t : ] ]\x{100}/',
'Assuming NOT a POSIX class since no blanks are allowed in one {#} m/[[ ^ : x d i g i t : ]{#} ]\x{100}/',
$only_strict_marker . 'Unescaped literal \']\' {#} m/[[ ^ : x d i g i t : ] ]{#}\x{100}/',
],
'/[foo:lower:]]\x{100}/' => 'Assuming NOT a POSIX class since it doesn\'t start with a \'[\' {#} m/[foo{#}:lower:]]\x{100}/',
'/[[;upper;]]\x{100}/' => [ 'Assuming NOT a POSIX class since a semi-colon was found instead of a colon {#} m/[[;{#}upper;]]\x{100}/',
'Assuming NOT a POSIX class since a semi-colon was found instead of a colon {#} m/[[;upper;]{#}]\x{100}/',
],
'/[foo;punct;]]\x{100}/' => [ 'Assuming NOT a POSIX class since it doesn\'t start with a \'[\' {#} m/[foo{#};punct;]]\x{100}/',
'Assuming NOT a POSIX class since a semi-colon was found instead of a colon {#} m/[foo;{#}punct;]]\x{100}/',
'Assuming NOT a POSIX class since a semi-colon was found instead of a colon {#} m/[foo;punct;]{#}]\x{100}/',
],
); # See comments before this for why '\x{100}' is generally needed
# These need the character 'ネ' as a marker for mark_as_utf8()
my @warnings_utf8 = mark_as_utf8(
'm/ネ\b*ネ/' => '\b* matches null string many times {#} m/ネ\b*{#}ネ/',
'/(?=ネ)*/' => '(?=ネ)* matches null string many times {#} m/(?=ネ)*{#}/',
'm/ネ[:foo:]ネ/' => 'POSIX syntax [: :] belongs inside character classes (but this one isn\'t fully valid) {#} m/ネ[:foo:]{#}ネ/',
'/ネ(?c)ネ/' => 'Useless (?c) - use /gc modifier {#} m/ネ(?c{#})ネ/',
'/utf8 ネ (?ogc) ネ/' => [
'Useless (?o) - use /o modifier {#} m/utf8 ネ (?o{#}gc) ネ/',
'Useless (?g) - use /g modifier {#} m/utf8 ネ (?og{#}c) ネ/',
'Useless (?c) - use /gc modifier {#} m/utf8 ネ (?ogc{#}) ネ/',
],
);
push @warning, @warnings_utf8;
my @warning_only_under_strict = (
'/[\N{U+00}-\x01]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\N{U+00}-\x01{#}]\x{100}/',
'/[\x00-\N{SOH}]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\x00-\N{U+01}{#}]\x{100}/',
'/[\N{DEL}-\o{377}]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\N{U+7F}-\o{377}{#}]\x{100}/',
'/[\o{0}-\N{U+01}]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\o{0}-\N{U+01}{#}]\x{100}/',
'/[\000-\N{U+01}]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\000-\N{U+01}{#}]\x{100}/',
'/[\N{DEL}-\377]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\N{U+7F}-\377{#}]\x{100}/',
'/[\N{U+00}-A]\x{100}/' => 'Ranges of ASCII printables should be some subset of "0-9", "A-Z", or "a-z" {#} m/[\N{U+00}-A{#}]\x{100}/',
'/[a-\N{U+FF}]\x{100}/' => 'Ranges of ASCII printables should be some subset of "0-9", "A-Z", or "a-z" {#} m/[a-\N{U+FF}{#}]\x{100}/',
'/[\N{U+00}-\a]\x{100}/' => "",
'/[\a-\N{U+FF}]\x{100}/' => "",
'/[\N{U+FF}-\x{100}]/' => 'Both or neither range ends should be Unicode {#} m/[\N{U+FF}-\x{100}{#}]/',
'/[\N{U+100}-\x{101}]/' => "",
"/[%-%]/" => "",
"/[:-\\x$colon_hex]\\x{100}/" => "\":-\\x$colon_hex\" is more clearly written simply as \":\" {#} m/[:-\\x$colon_hex\{#}]\\x{100}/",
"/[\\x$colon_hex-:]\\x{100}/" => "\"\\x$colon_hex-:\" is more clearly written simply as \":\" {#} m/[\\x$colon_hex\-:{#}]\\x{100}/",
"/[\\t-\\x$tab_hex]\\x{100}/" => "\"\\t-\\x$tab_hex\" is more clearly written simply as \"\\t\" {#} m/[\\t-\\x$tab_hex\{#}]\\x{100}/",
"/[\\x$tab_hex-\\t]\\x{100}/" => "\"\\x$tab_hex-\\t\" is more clearly written simply as \"\\t\" {#} m/[\\x$tab_hex\-\\t{#}]\\x{100}/",
"/[$B_hex-C]/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/[$B_hex-C{#}]/",
"/[A-$B_hex]/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/[A-$B_hex\{#}]/",
"/[$low_mixed_alpha-$high_mixed_alpha]/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/[$low_mixed_alpha-$high_mixed_alpha\{#}]/",
"/[$low_mixed_digit-$high_mixed_digit]/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/[$low_mixed_digit-$high_mixed_digit\{#}]/",
'/\b<GCB}/' => 'Unescaped literal \'}\' {#} m/\b<GCB}{#}/',
'/[ ]def]/' => 'Unescaped literal \']\' {#} m/[ ]def]{#}/',
);
my @warning_utf8_only_under_strict = mark_as_utf8(
'/ネ[᪉-᪐]/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ[᪉-᪐{#}]/",
'/ネ(?[ [ ᪉ - ᪐ ] ])/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ(?[ [ ᪉ - ᪐ {#}] ])/",
'/ネ[᧙-᧚]/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ[᧙-᧚{#}]/",
'/ネ(?[ [ ᧙ - ᧚ ] ])/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ(?[ [ ᧙ - ᧚ {#}] ])/",
'/ネ(?[ [ 𝟘 - 𝟡 ] ])/; #no latin1' => "",
'/ネ(?[ [ 𝟧 - 𝟱 ] ])/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ(?[ [ 𝟧 - 𝟱 {#}] ])/",
'/ネ(?[ [ 𝟧 - 𝟰 ] ])/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ(?[ [ 𝟧 - 𝟰 {#}] ])/",
);
push @warning_only_under_strict, @warning_utf8_only_under_strict;
my @experimental_regex_sets = (
'/(?[ \t ])/' => 'The regex_sets feature is experimental {#} m/(?[{#} \t ])/',
'use utf8; /utf8 ネ (?[ [\tネ] ])/' => do { use utf8; 'The regex_sets feature is experimental {#} m/utf8 ネ (?[{#} [\tネ] ])/' },
'/noutf8 ネ (?[ [\tネ] ])/' => 'The regex_sets feature is experimental {#} m/noutf8 ネ (?[{#} [\tネ] ])/',
);
my @deprecated = (
'/^{/' => "",
'/foo|{/' => "",
'/foo|^{/' => "",
'/foo({bar)/' => "",
'/foo(:?{bar)/' => "",
'/\s*{/' => "",
'/a{3,4}{/' => "",
'/.{/' => 'Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through {#} m/.{{#}/',
'/[x]{/' => 'Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through {#} m/[x]{{#}/',
'/\p{Latin}{/' => 'Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through {#} m/\p{Latin}{{#}/',
'/\\${[^\\}]*}/' => 'Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through {#} m/\\${{#}[^\\}]*}/',
);
for my $strict ("", "use re 'strict';") {
# First time just use @death; but under strict we add the things that fail
# there. Doing it this way makes sure that 'strict' doesnt change the
# things that are already fatal when not under strict.
if ($strict) {
for (my $i = 0; $i < @death_only_under_strict; $i += 3) {
push @death, $death_only_under_strict[$i], # The regex
$death_only_under_strict[$i+2]; # The fatal msg
}
for (my $i = 0; $i < @death_utf8_only_under_strict; $i += 3) {
# Same with the utf8 versions
push @death, mark_as_utf8($death_utf8_only_under_strict[$i],
$death_utf8_only_under_strict[$i+2]);
}
}
for (my $i = 0; $i < @death; $i += 2) {
my $regex = $death[$i];
my $expect = fixup_expect($death[$i+1], $strict);
no warnings 'experimental::regex_sets';
no warnings 'experimental::re_strict';
warning_is(sub {
my $eval_string = "$strict $regex";
$_ = "x";
eval $eval_string;
like($@, qr/\Q$expect/, $eval_string);
}, undef, "... and died without any other warnings");
}
}
for my $strict ("", "no warnings 'experimental::re_strict'; use re 'strict';") {
my @warning_tests = @warning;
# Build the tests for @warning. Use the strict/non-strict versions
# appropriately.
if ($strict) {
push @warning_tests, @warning_only_under_strict;
}
else {
for (my $i = 0; $i < @warning_only_under_strict; $i += 2) {
# (?[ ]) are always under strict
if ($warning_only_under_strict[$i] =~ /\Q(?[/) {
push @warning_tests, $warning_only_under_strict[$i], # The regex
$warning_only_under_strict[$i+1];
}
else {
push @warning_tests, $warning_only_under_strict[$i], # The regex
""; # No warning because not strict
}
}
for (my $i = 0; $i < @death_only_under_strict; $i += 3) {
push @warning_tests, $death_only_under_strict[$i], # The regex
$death_only_under_strict[$i+1]; # The warning
}
for (my $i = 0; $i < @death_utf8_only_under_strict; $i += 3) {
push @warning_tests, mark_as_utf8($death_utf8_only_under_strict[$i],
$death_utf8_only_under_strict[$i+1]);
}
}
foreach my $ref (\@warning_tests, \@experimental_regex_sets, \@deprecated) {
my $warning_type;
my $turn_off_warnings = "";
my $default_on;
if ($ref == \@warning_tests) {
$warning_type = 'regexp, digit';
$turn_off_warnings = "no warnings 'experimental::regex_sets';";
$default_on = $strict;
}
elsif ($ref == \@deprecated) {
$warning_type = 'regexp, deprecated';
$default_on = 1;
}
else {
$warning_type = 'experimental::regex_sets';
$default_on = 1;
}
for (my $i = 0; $i < @$ref; $i += 2) {
my $regex = $ref->[$i];
my @expect = fixup_expect($ref->[$i+1], $strict);
# A length-1 array with an empty warning means no warning gets
# generated at all.
undef @expect if @expect == 1 && $expect[0] eq "";
{
$_ = "x";
#use feature 'unicode_eval';
#print STDERR __LINE__, ": ", "eval '$strict no warnings; $regex'", "\n";
eval "$strict no warnings; $regex";
}
if (is($@, "", "$strict $regex did not die")) {
my @got = capture_warnings(sub {
$_ = "x";
eval "$strict $turn_off_warnings $regex" });
my $count = @expect;
if (! is(scalar @got, scalar @expect,
"... and gave expected number ($count) of warnings"))
{
if (@got < @expect) {
$count = @got;
note "Expected warnings not gotten:\n\t" . join "\n\t",
@expect[$count .. $#expect];
}
else {
note "Unexpected warnings gotten:\n\t" . join("\n\t",
@got[$count .. $#got]);
}
}
foreach my $i (0 .. $count - 1) {
if (! like($got[$i], qr/\Q$expect[$i]/,
"... and gave expected warning"))
{
chomp($got[$i]);
chomp($expect[$i]);
diag("GOT\n'$got[$i]'\nEXPECT\n'$expect[$i]'");
}
else {
ok (0 == capture_warnings(sub {
$_ = "x";
eval "$strict no warnings '$warning_type'; $regex;" }
),
"... and turning off '$warning_type' warnings suppressed it");
# Test that whether the warning is on by default is
# correct. This test relies on the fact that we
# are outside the scope of any ‘use warnings’.
local $^W;
my @warns = capture_warnings(sub { $_ = "x";
eval "$strict $regex" });
# Warning should be on as well if is testing
# '(?[...])' which turns on strict
if ($default_on || grep { $_ =~ /\Q(?[/ } @expect ) {
ok @warns > 0, "... and the warning is on by default";
}
else {
ok @warns == 0, "... and the warning is off by default";
}
}
}
}
}
}
}
done_testing();