#!./perl -w
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
require './test.pl';
eval 'require Config'; # assume defaults if this fails
}
use strict;
use open qw(:utf8 :std);
##
## 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.
##
## 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
sub fixup_expect {
my $expect_ref = shift;
return if $expect_ref eq "";
my @expect;
if (ref $expect_ref) {
@expect = @$expect_ref;
}
else {
@expect = $expect_ref;
}
foreach my $element (@expect) {
$element =~ s/{\#}/in regex; marked by <-- HERE in/;
$element =~ s/{\#}/ <-- HERE /;
$element .= " at ";
}
return wantarray ? @expect : join "", @expect;
}
## Because we don't "use utf8" in this file, we need to do some extra legwork
## for the utf8 tests: Append 'use utf8' to the pattern, and mark the strings
## to check against as UTF-8
##
## This also creates a second variant of the tests to check if the
## latin1 error messages are working correctly.
my $l1 = "\x{ef}";
my $utf8 = "\x{30cd}";
utf8::encode($utf8);
sub mark_as_utf8 {
my @ret;
while ( my ($pat, $msg) = splice(@_, 0, 2) ) {
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;
##
## 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)x|y|z)/' => 'Switch (?(condition)... contains too many branches {#} m/(?(1)x|y|{#}z)/',
'/(?(x)y|x)/' => 'Unknown switch condition (?(...)) {#} m/(?(x{#})y|x)/',
'/(?/' => '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)/',
"/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{{#}}/',
'/(?[[[:word]]])/' => "Unmatched ':' in POSIX class {#} m/(?[[[:word{#}]]])/",
'/(?[[:word]])/' => "Unmatched ':' in POSIX class {#} m/(?[[:word{#}]])/",
'/(?[[[:digit: ])/' => "Unmatched '[' in POSIX class {#} m/(?[[[:digit:{#} ])/",
'/(?[[:digit: ])/' => "Unmatched '[' in POSIX class {#} m/(?[[:digit:{#} ])/",
'/(?[[[::]]])/' => "POSIX class [::] unknown {#} m/(?[[[::]{#}]])/",
'/(?[[[:w:]]])/' => "POSIX class [:w:] unknown {#} m/(?[[[:w:]{#}]])/",
'/(?[[:w:]])/' => "POSIX class [:w:] unknown {#} m/(?[[:w:]{#}])/",
'/(?[a])/' => 'Unexpected character {#} m/(?[a{#}])/',
'/(?[\t])/l' => '(?[...]) not valid in locale {#} m/(?[{#}\t])/',
'/(?[ + \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 + {#}])/',
'/(?[ \p{foo} ])/' => 'Property \'foo\' is unknown {#} m/(?[ \p{foo}{#} ])/',
'/(?[ \p{ foo = bar } ])/' => 'Property \'foo = bar\' is unknown {#} 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 character class 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<{#}/',
);
my @death_utf8 = mark_as_utf8(
'/ネ[[=ネ=]]ネ/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/ネ[[=ネ=]{#}]ネ/',
'/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/' => 'POSIX class [:ネ:] unknown {#} m/ネ[[:ネ:]{#}]ネ/',
'/ネ[[=ネ=]]ネ/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/ネ[[=ネ=]{#}]ネ/',
'/ネ[[.ネ.]]ネ/' => 'POSIX syntax [. .] is reserved for future extensions {#} m/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/' => "Unmatched ':' in POSIX class {#} m/ネ(?[[[:ネ{#}]]])ネ/",
'/ネ(?[[[:ネ: ])ネ/' => "Unmatched '[' in POSIX class {#} m/ネ(?[[[:ネ:{#} ])ネ/",
'/ネ(?[[[::]]])ネ/' => "POSIX class [::] unknown {#} m/ネ(?[[[::]{#}]])ネ/",
'/ネ(?[[[:ネ:]]])ネ/' => "POSIX class [:ネ:] unknown {#} m/ネ(?[[[:ネ:]{#}]])ネ/",
'/ネ(?[[:ネ:]])ネ/' => "POSIX class [:ネ:] unknown {#} m/ネ(?[[:ネ:]{#}])ネ/",
'/ネ(?[ネ])ネ/' => 'Unexpected character {#} m/ネ(?[ネ{#}])ネ/',
'/ネ(?[ネ])/l' => '(?[...]) not valid in locale {#} m/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} ])/' => 'Property \'ネ\' is unknown {#} m/(?[ \p{ネ}{#} ])/',
'/(?[ \p{ ネ = bar } ])/' => 'Property \'ネ = bar\' is unknown {#} 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/>
);
push @death, @death_utf8;
# 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.
##
my @warning = (
'm/\b*/' => '\b* matches null string many times {#} m/\b*{#}/',
'm/[:blank:]/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[:blank:]{#}/',
"m'[\\y]'" => 'Unrecognized escape \y in character class passed through {#} m/[\y{#}]/',
'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'\\y'" => 'Unrecognized escape \y passed through {#} m/\y{#}/',
'/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{#}/',
'/[\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{#}/',
'/\q{/' => 'Unrecognized escape \q{ passed through {#} m/\q{{#}/',
'/(?=a){1,3}/' => 'Quantifier unexpected on zero-length expression {#} m/(?=a){1,3}{#}/',
'/(a|b)(?=a){3}/' => 'Quantifier unexpected on zero-length expression {#} m/(a|b)(?=a){3}{#}/',
'/\_/' => "",
'/[\_\0]/' => "",
'/[\07]/' => "",
'/[\006]/' => "",
'/[\0005]/' => "",
'/[\8\9]/' => ['Unrecognized escape \8 in character class passed through {#} m/[\8{#}\9]/',
'Unrecognized escape \9 in character class passed through {#} m/[\8\9{#}]/',
],
'/[:alpha:]/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[:alpha:]{#}/',
'/[:zog:]/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[:zog:]{#}/',
'/[.zog.]/' => 'POSIX syntax [. .] belongs inside character classes {#} m/[.zog.]{#}/',
'/[a-b]/' => "",
'/[a-\d]/' => 'False [] range "a-\d" {#} m/[a-\d{#}]/',
'/[\d-b]/' => 'False [] range "\d-" {#} m/[\d-{#}b]/',
'/[\s-\d]/' => 'False [] range "\s-" {#} m/[\s-{#}\d]/',
'/[\d-\s]/' => 'False [] range "\d-" {#} m/[\d-{#}\s]/',
'/[a-[:digit:]]/' => 'False [] range "a-[:digit:]" {#} m/[a-[:digit:]{#}]/',
'/[[:digit:]-b]/' => 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}b]/',
'/[[:alpha:]-[:digit:]]/' => 'False [] range "[:alpha:]-" {#} m/[[:alpha:]-{#}[:digit:]]/',
'/[[:digit:]-[:alpha:]]/' => 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}[:alpha:]]/',
'/[a\zb]/' => 'Unrecognized escape \z in character class passed through {#} m/[a\z{#}b]/',
'/(?c)/' => 'Useless (?c) - use /gc modifier {#} m/(?c{#})/',
'/(?-c)/' => 'Useless (?-c) - don\'t use /gc modifier {#} m/(?-c{#})/',
'/(?g)/' => 'Useless (?g) - use /g modifier {#} m/(?g{#})/',
'/(?-g)/' => 'Useless (?-g) - don\'t use /g modifier {#} m/(?-g{#})/',
'/(?o)/' => 'Useless (?o) - use /o modifier {#} m/(?o{#})/',
'/(?-o)/' => 'Useless (?-o) - don\'t use /o modifier {#} m/(?-o{#})/',
'/(?g-o)/' => [ 'Useless (?g) - use /g modifier {#} m/(?g{#}-o)/',
'Useless (?-o) - don\'t use /o modifier {#} m/(?g-o{#})/',
],
'/(?g-c)/' => [ 'Useless (?g) - use /g modifier {#} m/(?g{#}-c)/',
'Useless (?-c) - don\'t use /gc modifier {#} m/(?g-c{#})/',
],
# (?c) means (?g) error won't be thrown
'/(?o-cg)/' => [ 'Useless (?o) - use /o modifier {#} m/(?o{#}-cg)/',
'Useless (?-c) - don\'t use /gc modifier {#} m/(?o-c{#}g)/',
],
'/(?ogc)/' => [ 'Useless (?o) - use /o modifier {#} m/(?o{#}gc)/',
'Useless (?g) - use /g modifier {#} m/(?og{#}c)/',
'Useless (?c) - use /gc modifier {#} m/(?ogc{#})/',
],
'/a{1,1}?/' => 'Useless use of greediness modifier \'?\' {#} m/a{1,1}?{#}/',
'/b{3} +/x' => 'Useless use of greediness modifier \'+\' {#} m/b{3} +{#}/',
);
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 {#} m/ネ[:foo:]{#}ネ/',
"m'ネ[\\y]ネ'" => 'Unrecognized escape \y in character class passed through {#} m/ネ[\y{#}]ネ/',
'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/',
'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/',
'/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/',
'/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 @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 = (
'/a\b{cde/' => '"\b{" is deprecated; use "\b\{" or "\b[{]" instead {#} m/a\{#}b{cde/',
'/a\B{cde/' => '"\B{" is deprecated; use "\B\{" or "\B[{]" instead {#} m/a\{#}B{cde/',
"/(?x)latin1\\\x{85}\x{85}\\\x{85}/" => 'Escape literal pattern white space under /x {#} ' . "m/(?x)latin1\\\x{85}\x{85}{#}\\\x{85}/",
'use utf8; /(?x)utf8\
\
/' => 'Escape literal pattern white space under /x {#} ' . "m/(?x)utf8\\\N{NEXT LINE}\N{NEXT LINE}{#}\\\N{NEXT LINE}/",
'/((?# This is a comment in the middle of a token)?:foo)/' => 'In \'(?...)\', splitting the initial \'(?\' is deprecated {#} 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...)\', splitting the initial \'(*\' is deprecated {#} m/((?# This is a comment in the middle of a token)*{#}FAIL)/',
);
while (my ($regex, $expect) = splice @death, 0, 2) {
my $expect = fixup_expect($expect);
no warnings 'experimental::regex_sets';
# skip the utf8 test on EBCDIC since they do not die
next if $::IS_EBCDIC && $regex =~ /utf8/;
warning_is(sub {
$_ = "x";
eval $regex;
like($@, qr/\Q$expect/, $regex);
}, undef, "... and died without any other warnings");
}
foreach my $ref (\@warning, \@experimental_regex_sets, \@deprecated) {
my $warning_type = ($ref == \@warning)
? 'regexp'
: ($ref == \@deprecated)
? 'regexp, deprecated'
: 'experimental::regex_sets';
while (my ($regex, $expect) = splice @$ref, 0, 2) {
my @expect = fixup_expect($expect);
{
$_ = "x";
no warnings;
eval $regex;
}
if (is($@, "", "$regex did not die")) {
my @got = capture_warnings(sub {
$_ = "x";
eval $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 {
$_ = "x";
eval "no warnings '$warning_type'; $regex;" }
),
"... and turning off '$warning_type' warnings suppressed it");
# Test that whether the warning is on by default is
# correct. Experimental and deprecated warnings are;
# others are not. This test relies on the fact that we
# are outside the scope of any ‘use warnings’.
local $^W;
my $on = 'on' x ($warning_type ne 'regexp');
ok !!$on ==
capture_warnings(sub { $_ = "x"; eval $regex }),
"... and the warning is " . ($on||'off')
. " by default";
}
}
}
}
}
done_testing();