#!./perl -w
+$|=1; # outherwise things get mixed up in output
+
BEGIN {
chdir 't' if -d 't';
- @INC = '../lib';
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.
##
-sub fixup_expect {
- my $expect = shift;
- $expect =~ s/{\#}/<-- HERE/;
- $expect =~ s/{\#}/ <-- HERE /;
- $expect .= " at ";
- return $expect;
+## 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;
-##
-## Key-value pairs of code/error of code that should have fatal errors.
-##
+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 strings eval'd as patterns => warn/error messages that
+# they should generate. In some cases, the value is an array of multiple
+# messages. Some groups have the message(s) be default on; others, default
+# off. This can be overridden on an individual key basis by preceding the
+# pattern string with either 'default_on' or 'default_off'
+#
+# The first set are those that should be fatal errors.
+
my @death =
(
- '/[[=foo=]]/' => 'POSIX syntax [= =] is reserved for future extensions in regex; marked by {#} in m/[[=foo=]{#}]/',
+ '/[[=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 in regex; marked by {#} in m/(?@{#})/',
+ '/(?@)/' => 'Sequence (?@...) not implemented {#} m/(?@{#})/',
'/(?{ 1/' => 'Missing right curly or square bracket',
- '/(?(1x))/' => 'Switch condition not recognized in regex; marked by {#} in m/(?(1x{#}))/',
+ '/(?(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)/',
- '/(?(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 (?(...)) {#} m/(?(x{#})y|x)/',
+ '/(?(??{}))/' => 'Unknown switch condition (?(...)) {#} m/(?(?{#}?{}))/',
+ '/(?(?[]))/' => 'Unknown switch condition (?(...)) {#} m/(?(?{#}[]))/',
- '/(?(x)y|x)/' => 'Unknown switch condition (?(x) in regex; marked by {#} in m/(?({#}x)y|x)/',
+ '/(?/' => 'Sequence (? incomplete {#} m/(?{#}/',
- '/(?/' => 'Sequence (? incomplete in regex; marked by {#} in 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/' => 'Sequence (?;...) not recognized in regex; marked by {#} in m/(?;{#}x/',
- '/(?<;x/' => 'Group name must start with a non-digit word character in regex; marked by {#} in m/(?<;{#}x/',
- '/(?\ix/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}ix/',
- '/(?\mx/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}mx/',
- '/(?\:x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}:x/',
- '/(?\=x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}=x/',
- '/(?\!x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}!x/',
- '/(?\<=x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}<=x/',
- '/(?\<!x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}<!x/',
- '/(?\>x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}>x/',
- '/(?^-i:foo)/' => 'Sequence (?^-...) not recognized in regex; marked by {#} in m/(?^-{#}i:foo)/',
- '/(?^-i)foo/' => 'Sequence (?^-...) not recognized in regex; marked by {#} in m/(?^-{#}i)foo/',
- '/(?^d:foo)/' => 'Sequence (?^d...) not recognized in regex; marked by {#} in m/(?^d{#}:foo)/',
- '/(?^d)foo/' => 'Sequence (?^d...) not recognized in regex; marked by {#} in m/(?^d{#})foo/',
- '/(?^lu:foo)/' => 'Regexp modifiers "l" and "u" are mutually exclusive in regex; marked by {#} in m/(?^lu{#}:foo)/',
- '/(?^lu)foo/' => 'Regexp modifiers "l" and "u" are mutually exclusive in regex; marked by {#} in m/(?^lu{#})foo/',
-'/(?da:foo)/' => 'Regexp modifiers "d" and "a" are mutually exclusive in regex; marked by {#} in m/(?da{#}:foo)/',
-'/(?lil:foo)/' => 'Regexp modifier "l" may not appear twice in regex; marked by {#} in m/(?lil{#}:foo)/',
-'/(?aaia:foo)/' => 'Regexp modifier "a" may appear a maximum of twice in regex; marked by {#} in m/(?aaia{#}:foo)/',
-'/(?i-l:foo)/' => 'Regexp modifier "l" may not appear after the "-" in regex; marked by {#} in m/(?i-l{#}:foo)/',
+ '/((x)/' => 'Unmatched ( {#} m/({#}(x)/',
+ '/{(}/' => 'Unmatched ( {#} m/{({#}}/', # [perl #127599]
- '/((x)/' => 'Unmatched ( in regex; marked by {#} in m/({#}(x)/',
+ "/x{$inf_p1}/" => "Quantifier in {,} bigger than $inf_m1 {#} m/x{{#}$inf_p1}/",
- "/x{$inf_p1}/" => "Quantifier in {,} bigger than $inf_m1 in regex; marked by {#} in m/x{{#}$inf_p1}/",
+ '/x**/' => 'Nested quantifiers {#} m/x**{#}/',
- '/x**/' => 'Nested quantifiers in regex; marked by {#} in m/x**{#}/',
+ '/x[/' => 'Unmatched [ {#} m/x[{#}/',
- '/x[/' => 'Unmatched [ in regex; marked by {#} in m/x[{#}/',
+ '/*/', => 'Quantifier follows nothing {#} m/*{#}/',
- '/*/', => 'Quantifier follows nothing in regex; marked by {#} in m/*{#}/',
+ '/\p{x/' => 'Missing right brace on \p{} {#} m/\p{{#}x/',
- '/\p{x/' => 'Missing right brace on \p{} in regex; marked by {#} in m/\p{{#}x/',
+ '/[\p{x]/' => 'Missing right brace on \p{} {#} m/[\p{{#}x]/',
- '/[\p{x]/' => 'Missing right brace on \p{} in regex; marked by {#} in m/[\p{{#}x]/',
+ '/(x)\2/' => 'Reference to nonexistent group {#} m/(x)\2{#}/',
- '/(x)\2/' => 'Reference to nonexistent group in regex; marked by {#} in 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{} in regex; marked by {#} in m/\x{1{#}/',
- '/\x{X/' => 'Missing right brace on \x{} in regex; marked by {#} in m/\x{{#}X/',
+ '/\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)/',
- '/[\x{X]/' => 'Missing right brace on \x{} in regex; marked by {#} in m/[\x{{#}X]/',
- '/[\x{A]/' => 'Missing right brace on \x{} in regex; marked by {#} in m/[\x{A{#}]/',
+ '/(?(ネ)y|ネ)/' => 'Unknown switch condition (?(...)) {#} m/(?(ネ{#})y|ネ)/',
- '/\o{1/' => 'Missing right brace on \o{ in regex; marked by {#} in m/\o{1{#}/',
- '/\o{X/' => 'Missing right brace on \o{ in regex; marked by {#} in m/\o{{#}X/',
+ '/ネ(?/' => 'Sequence (? incomplete {#} m/ネ(?{#}/',
- '/[\o{X]/' => 'Missing right brace on \o{ in regex; marked by {#} in m/[\o{{#}X]/',
- '/[\o{7]/' => 'Missing right brace on \o{ in regex; marked by {#} in m/[\o{7{#}]/',
+ '/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)/',
- '/[[:barf:]]/' => 'POSIX class [:barf:] unknown in regex; marked by {#} in m/[[:barf:]{#}]/',
+ '/ネ((ネ)/' => 'Unmatched ( {#} m/ネ({#}(ネ)/',
- '/[[=barf=]]/' => 'POSIX syntax [= =] is reserved for future extensions in regex; marked by {#} in m/[[=barf=]{#}]/',
+ "/ネ{$inf_p1}ネ/" => "Quantifier in {,} bigger than $inf_m1 {#} m/ネ{{#}$inf_p1}ネ/",
- '/[[.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{#}/',
+ '/ネ**ネ/' => 'Nested quantifiers {#} m/ネ**{#}ネ/',
- '/\P{}/' => 'Empty \P{} in regex; marked by {#} in m/\P{{#}}/',
+ '/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.
-##
-## Key-value pairs of code/error of code that should have non-fatal warnings.
-##
my @warning = (
- 'm/\b*/' => '\b* matches null string many times in regex; marked by {#} in m/\b*{#}/',
+ '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/',
+ ],
- '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{#}]/',
+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-$high_mixed_digit\{#}]/",
+ '/\b<GCB}/' => 'Unescaped literal \'}\' {#} m/\b<GCB}{#}/',
+ '/[ ]def]/' => 'Unescaped literal \']\' {#} m/[ ]def]{#}/',
+);
- 'm/[a-\d]/' => 'False [] range "a-\d" in regex; marked by {#} in m/[a-\d{#}]/',
- 'm/[\w-x]/' => 'False [] range "\w-" in regex; marked by {#} in m/[\w-{#}x]/',
- 'm/[a-\pM]/' => 'False [] range "a-\pM" in regex; marked by {#} in m/[a-\pM{#}]/',
- 'm/[\pM-x]/' => 'False [] range "\pM-" in regex; marked by {#} in m/[\pM-{#}x]/',
- "m'\\y'" => 'Unrecognized escape \y passed through in regex; marked by {#} in m/\y{#}/',
- '/x{3,1}/' => 'Quantifier {n,m} with n > m can\'t match in regex; marked by {#} in m/x{3,1}{#}/',
+my @warning_utf8_only_under_strict = mark_as_utf8(
+ '/ネ[᪉-᪐]/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ[᪉-᪐{#}]/",
+ '/ネ(?[ [ ᪉ - ᪐ ] ])/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ(?[ [ ᪉ - ᪐ {#}] ])/",
+ '/ネ[᧙-᧚]/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ[᧙-᧚{#}]/",
+ '/ネ(?[ [ ᧙ - ᧚ ] ])/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ(?[ [ ᧙ - ᧚ {#}] ])/",
+ '/ネ(?[ [ 𝟘 - 𝟡 ] ])/; #no latin1' => "",
+ '/ネ(?[ [ 𝟧 - 𝟱 ] ])/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ(?[ [ 𝟧 - 𝟱 {#}] ])/",
+ '/ネ(?[ [ 𝟧 - 𝟰 ] ])/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ(?[ [ 𝟧 - 𝟰 {#}] ])/",
);
-while (my ($regex, $expect) = splice @death, 0, 2) {
- my $expect = fixup_expect($expect);
- # skip the utf8 test on EBCDIC since they do not die
- next if $::IS_EBCDIC && $regex =~ /utf8/;
+push @warning_only_under_strict, @warning_utf8_only_under_strict;
+
+my @experimental_regex_sets = (
+ '/(?[ \t ])/' => 'The regex_sets feature is experimental {#} m/(?[{#} \t ])/',
+ 'use utf8; /utf8 ネ (?[ [\tネ] ])/' => do { use utf8; 'The regex_sets feature is experimental {#} m/utf8 ネ (?[{#} [\tネ] ])/' },
+ '/noutf8 ネ (?[ [\tネ] ])/' => 'The regex_sets feature is experimental {#} m/noutf8 ネ (?[{#} [\tネ] ])/',
+);
+
+my @deprecated = (
+ '/^{/' => "",
+ '/foo|{/' => "",
+ '/foo|^{/' => "",
+ '/foo({bar)/' => "",
+ '/foo(:?{bar)/' => "",
+ '/\s*{/' => "",
+ '/a{3,4}{/' => "",
+ '/.{/' => 'Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through {#} m/.{{#}/',
+ '/[x]{/' => 'Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through {#} m/[x]{{#}/',
+ '/\p{Latin}{/' => 'Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through {#} m/\p{Latin}{{#}/',
+ '/\\${[^\\}]*}/' => 'Unescaped left brace in regex is deprecated here (and will be fatal in Perl 5.30), passed through {#} m/\\${{#}[^\\}]*}/',
+);
- warning_is(sub {
- $_ = "x";
- eval $regex;
- like($@, qr/\Q$expect/);
- }, undef, "$regex died without any other warnings");
+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] =~ s/ default_ (on | off) //rx;
+ 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/, $eval_string);
+ }, undef, "... and died without any other warnings");
+ }
}
-while (my ($regex, $expect) = splice @warning, 0, 2) {
- my $expect = fixup_expect($expect);
- warning_like(sub {
- $_ = "x";
- eval $regex;
- is($@, '', "$regex did not die");
- }, qr/\Q$expect/);
+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 $this_default_on = $default_on;
+ my $regex = $ref->[$i];
+ if ($regex =~ s/ default_ (on | off) //x) {
+ $this_default_on = $1 eq 'on';
+ }
+ my @expect = fixup_expect($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 $regex" });
+ # Warning should be on as well if is testing
+ # '(?[...])' which turns on strict
+ if ($this_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();
https://perl5.git.perl.org / perl5.git / blobdiff