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regcomp.c: Move #define, make a function always compiled
[perl5.git] / t / re / reg_mesg.t
CommitLineData
b45f050a
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1#!./perl -w
2
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3$|=1; # outherwise things get mixed up in output
4
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5BEGIN {
6 chdir 't' if -d 't';
cc7e6304 7 @INC = qw '../lib ../ext/re';
cb79f740 8 require './test.pl';
2b08d1e2 9 skip_all_without_unicode_tables();
cb79f740 10 eval 'require Config'; # assume defaults if this fails
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11}
12
cb79f740 13use strict;
c1d900c3 14use open qw(:utf8 :std);
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15
16##
17## If the markers used are changed (search for "MARKER1" in regcomp.c),
cb79f740 18## update only these two regexs, and leave the {#} in the @death/@warning
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19## arrays below. The {#} is a meta-marker -- it marks where the marker should
20## go.
cb79f740 21##
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22## Returns empty string if that is what is expected. Otherwise, handles
23## either a scalar, turning it into a single element array; or a ref to an
24## array, adjusting each element. If called in array context, returns an
25## array, otherwise the join of all elements
26
cb79f740 27sub fixup_expect {
af01601c 28 my $expect_ref = shift;
63374c78 29 return "" if $expect_ref eq "";
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KW
30
31 my @expect;
32 if (ref $expect_ref) {
33 @expect = @$expect_ref;
34 }
35 else {
36 @expect = $expect_ref;
37 }
38
39 foreach my $element (@expect) {
6d24e9d4 40 $element =~ s/{\#}/in regex; marked by <-- HERE in/;
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41 $element =~ s/{\#}/ <-- HERE /;
42 $element .= " at ";
43 }
44 return wantarray ? @expect : join "", @expect;
cb79f740 45}
b45f050a 46
c1d900c3 47## Because we don't "use utf8" in this file, we need to do some extra legwork
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48## for the utf8 tests: Prepend 'use utf8' to the pattern, and mark the strings
49## to check against as UTF-8, but for this all to work properly, the character
50## 'ネ' (U+30CD) is required in each pattern somewhere as a marker.
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51##
52## This also creates a second variant of the tests to check if the
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53## latin1 error messages are working correctly. Because we don't 'use utf8',
54## we can't tell if something is UTF-8 or Latin1, so you need the suffix
55## '; no latin1' to not have the second variant.
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56my $l1 = "\x{ef}";
57my $utf8 = "\x{30cd}";
58utf8::encode($utf8);
59
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60sub mark_as_utf8 {
61 my @ret;
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62 for (my $i = 0; $i < @_; $i += 2) {
63 my $pat = $_[$i];
64 my $msg = $_[$i+1];
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65 my $l1_pat = $pat =~ s/$utf8/$l1/gr;
66 my $l1_msg;
c1d900c3 67 $pat = "use utf8; $pat";
b0e1d434 68
c1d900c3 69 if (ref $msg) {
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70 $l1_msg = [ map { s/$utf8/$l1/gr } @$msg ];
71 @$msg = map { my $c = $_; utf8::decode($c); $c } @$msg;
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72 }
73 else {
4cabb89a 74 $l1_msg = $msg =~ s/$utf8/$l1/gr;
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75 utf8::decode($msg);
76 }
77 push @ret, $pat => $msg;
b0e1d434 78
4cabb89a 79 push @ret, $l1_pat => $l1_msg unless $l1_pat =~ /#no latin1/;
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80 }
81 return @ret;
82}
83
cb79f740
NC
84my $inf_m1 = ($Config::Config{reg_infty} || 32767) - 1;
85my $inf_p1 = $inf_m1 + 2;
b45f050a 86
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87my $B_hex = sprintf("\\x%02X", ord "B");
88my $low_mixed_alpha = ('A' lt 'a') ? 'A' : 'a';
89my $high_mixed_alpha = ('A' lt 'a') ? 'a' : 'A';
90my $low_mixed_digit = ('A' lt '0') ? 'A' : '0';
91my $high_mixed_digit = ('A' lt '0') ? '0' : 'A';
92
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93##
94## Key-value pairs of code/error of code that should have fatal errors.
95##
96my @death =
97(
6d24e9d4 98 '/[[=foo=]]/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/[[=foo=]{#}]/',
b45f050a 99
58e23c8d 100 '/(?<= .*)/' => 'Variable length lookbehind not implemented in regex m/(?<= .*)/',
b45f050a 101
58e23c8d 102 '/(?<= x{1000})/' => 'Lookbehind longer than 255 not implemented in regex m/(?<= x{1000})/',
b45f050a 103
6d24e9d4 104 '/(?@)/' => 'Sequence (?@...) not implemented {#} m/(?@{#})/',
b45f050a 105
9da1dd8f 106 '/(?{ 1/' => 'Missing right curly or square bracket',
b45f050a 107
6d24e9d4 108 '/(?(1x))/' => 'Switch condition not recognized {#} m/(?(1x{#}))/',
311cc1ad 109 '/(?(1x(?#)))/'=> 'Switch condition not recognized {#} m/(?(1x{#}(?#)))/',
b45f050a 110
8fb0127d
YO
111 '/(?(1)/' => 'Switch (?(condition)... not terminated {#} m/(?(1){#}/',
112 '/(?(1)x/' => 'Switch (?(condition)... not terminated {#} m/(?(1)x{#}/',
113 '/(?(1)x|y/' => 'Switch (?(condition)... not terminated {#} m/(?(1)x|y{#}/',
6d24e9d4 114 '/(?(1)x|y|z)/' => 'Switch (?(condition)... contains too many branches {#} m/(?(1)x|y|{#}z)/',
b45f050a 115
c1d900c3 116 '/(?(x)y|x)/' => 'Unknown switch condition (?(...)) {#} m/(?(x{#})y|x)/',
10380cb3
FC
117 '/(?(??{}))/' => 'Unknown switch condition (?(...)) {#} m/(?(?{#}?{}))/',
118 '/(?(?[]))/' => 'Unknown switch condition (?(...)) {#} m/(?(?{#}[]))/',
b45f050a 119
6d24e9d4 120 '/(?/' => 'Sequence (? incomplete {#} m/(?{#}/',
b45f050a 121
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122 '/(?;x/' => 'Sequence (?;...) not recognized {#} m/(?;{#}x/',
123 '/(?<;x/' => 'Group name must start with a non-digit word character {#} m/(?<;{#}x/',
124 '/(?\ix/' => 'Sequence (?\...) not recognized {#} m/(?\{#}ix/',
125 '/(?\mx/' => 'Sequence (?\...) not recognized {#} m/(?\{#}mx/',
126 '/(?\:x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}:x/',
127 '/(?\=x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}=x/',
128 '/(?\!x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}!x/',
129 '/(?\<=x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}<=x/',
130 '/(?\<!x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}<!x/',
131 '/(?\>x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}>x/',
132 '/(?^-i:foo)/' => 'Sequence (?^-...) not recognized {#} m/(?^-{#}i:foo)/',
133 '/(?^-i)foo/' => 'Sequence (?^-...) not recognized {#} m/(?^-{#}i)foo/',
134 '/(?^d:foo)/' => 'Sequence (?^d...) not recognized {#} m/(?^d{#}:foo)/',
135 '/(?^d)foo/' => 'Sequence (?^d...) not recognized {#} m/(?^d{#})foo/',
136 '/(?^lu:foo)/' => 'Regexp modifiers "l" and "u" are mutually exclusive {#} m/(?^lu{#}:foo)/',
137 '/(?^lu)foo/' => 'Regexp modifiers "l" and "u" are mutually exclusive {#} m/(?^lu{#})foo/',
138'/(?da:foo)/' => 'Regexp modifiers "d" and "a" are mutually exclusive {#} m/(?da{#}:foo)/',
139'/(?lil:foo)/' => 'Regexp modifier "l" may not appear twice {#} m/(?lil{#}:foo)/',
140'/(?aaia:foo)/' => 'Regexp modifier "a" may appear a maximum of twice {#} m/(?aaia{#}:foo)/',
141'/(?i-l:foo)/' => 'Regexp modifier "l" may not appear after the "-" {#} m/(?i-l{#}:foo)/',
32d02813
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142'/a\b{cde/' => 'Use "\b\{" instead of "\b{" {#} m/a\{#}b{cde/',
143'/a\B{cde/' => 'Use "\B\{" instead of "\B{" {#} m/a\{#}B{cde/',
cc74c5bd 144
6d24e9d4 145 '/((x)/' => 'Unmatched ( {#} m/({#}(x)/',
b45f050a 146
6d24e9d4 147 "/x{$inf_p1}/" => "Quantifier in {,} bigger than $inf_m1 {#} m/x{{#}$inf_p1}/",
b45f050a 148
b45f050a 149
6d24e9d4 150 '/x**/' => 'Nested quantifiers {#} m/x**{#}/',
b45f050a 151
6d24e9d4 152 '/x[/' => 'Unmatched [ {#} m/x[{#}/',
b45f050a 153
6d24e9d4 154 '/*/', => 'Quantifier follows nothing {#} m/*{#}/',
b45f050a 155
6d24e9d4 156 '/\p{x/' => 'Missing right brace on \p{} {#} m/\p{{#}x/',
b45f050a 157
6d24e9d4 158 '/[\p{x]/' => 'Missing right brace on \p{} {#} m/[\p{{#}x]/',
b45f050a 159
6d24e9d4 160 '/(x)\2/' => 'Reference to nonexistent group {#} m/(x)\2{#}/',
b45f050a 161
779fedd7 162 '/\g/' => 'Unterminated \g... pattern {#} m/\g{#}/',
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163 '/\g{1/' => 'Unterminated \g{...} pattern {#} m/\g{1{#}/',
164
40809656 165 'my $m = "\\\"; $m =~ $m', => 'Trailing \ in regex m/\/',
b45f050a 166
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167 '/\x{1/' => 'Missing right brace on \x{} {#} m/\x{1{#}/',
168 '/\x{X/' => 'Missing right brace on \x{} {#} m/\x{{#}X/',
169
170 '/[\x{X]/' => 'Missing right brace on \x{} {#} m/[\x{{#}X]/',
171 '/[\x{A]/' => 'Missing right brace on \x{} {#} m/[\x{A{#}]/',
172
173 '/\o{1/' => 'Missing right brace on \o{ {#} m/\o{1{#}/',
174 '/\o{X/' => 'Missing right brace on \o{ {#} m/\o{{#}X/',
175
176 '/[\o{X]/' => 'Missing right brace on \o{ {#} m/[\o{{#}X]/',
177 '/[\o{7]/' => 'Missing right brace on \o{ {#} m/[\o{7{#}]/',
178
179 '/[[:barf:]]/' => 'POSIX class [:barf:] unknown {#} m/[[:barf:]{#}]/',
180
181 '/[[=barf=]]/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/[[=barf=]{#}]/',
182
183 '/[[.barf.]]/' => 'POSIX syntax [. .] is reserved for future extensions {#} m/[[.barf.]{#}]/',
184
185 '/[z-a]/' => 'Invalid [] range "z-a" {#} m/[z-a{#}]/',
186
187 '/\p/' => 'Empty \p{} {#} m/\p{#}/',
188
189 '/\P{}/' => 'Empty \P{} {#} m/\P{{#}}/',
190 '/(?[[[:word]]])/' => "Unmatched ':' in POSIX class {#} m/(?[[[:word{#}]]])/",
191 '/(?[[:word]])/' => "Unmatched ':' in POSIX class {#} m/(?[[:word{#}]])/",
192 '/(?[[[:digit: ])/' => "Unmatched '[' in POSIX class {#} m/(?[[[:digit:{#} ])/",
193 '/(?[[:digit: ])/' => "Unmatched '[' in POSIX class {#} m/(?[[:digit:{#} ])/",
194 '/(?[[[::]]])/' => "POSIX class [::] unknown {#} m/(?[[[::]{#}]])/",
195 '/(?[[[:w:]]])/' => "POSIX class [:w:] unknown {#} m/(?[[[:w:]{#}]])/",
196 '/(?[[:w:]])/' => "POSIX class [:w:] unknown {#} m/(?[[:w:]{#}])/",
197 '/(?[a])/' => 'Unexpected character {#} m/(?[a{#}])/',
198 '/(?[\t])/l' => '(?[...]) not valid in locale {#} m/(?[{#}\t])/',
199 '/(?[ + \t ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/(?[ +{#} \t ])/',
200 '/(?[ \cK - ( + \t ) ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/(?[ \cK - ( +{#} \t ) ])/',
201 '/(?[ \cK ( \t ) ])/' => 'Unexpected \'(\' with no preceding operator {#} m/(?[ \cK ({#} \t ) ])/',
202 '/(?[ \cK \t ])/' => 'Operand with no preceding operator {#} m/(?[ \cK \t{#} ])/',
203 '/(?[ \0004 ])/' => 'Need exactly 3 octal digits {#} m/(?[ \0004 {#}])/',
204 '/(?[ \05 ])/' => 'Need exactly 3 octal digits {#} m/(?[ \05 {#}])/',
205 '/(?[ \o{1038} ])/' => 'Non-octal character {#} m/(?[ \o{1038{#}} ])/',
206 '/(?[ \o{} ])/' => 'Number with no digits {#} m/(?[ \o{}{#} ])/',
207 '/(?[ \x{defg} ])/' => 'Non-hex character {#} m/(?[ \x{defg{#}} ])/',
208 '/(?[ \xabcdef ])/' => 'Use \\x{...} for more than two hex characters {#} m/(?[ \xabc{#}def ])/',
209 '/(?[ \x{} ])/' => 'Number with no digits {#} m/(?[ \x{}{#} ])/',
210 '/(?[ \cK + ) ])/' => 'Unexpected \')\' {#} m/(?[ \cK + ){#} ])/',
211 '/(?[ \cK + ])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[ \cK + {#}])/',
212 '/(?[ \p{foo} ])/' => 'Property \'foo\' is unknown {#} m/(?[ \p{foo}{#} ])/',
213 '/(?[ \p{ foo = bar } ])/' => 'Property \'foo = bar\' is unknown {#} m/(?[ \p{ foo = bar }{#} ])/',
214 '/(?[ \8 ])/' => 'Unrecognized escape \8 in character class {#} m/(?[ \8{#} ])/',
3f4fde43
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215 '/(?[ \t ]/' => 'Syntax error in (?[...]) in regex m/(?[ \t ]/',
216 '/(?[ [ \t ]/' => 'Syntax error in (?[...]) in regex m/(?[ [ \t ]/',
217 '/(?[ \t ] ]/' => 'Syntax error in (?[...]) in regex m/(?[ \t ] ]/',
218 '/(?[ [ ] ]/' => 'Syntax error in (?[...]) in regex m/(?[ [ ] ]/',
219 '/(?[ \t + \e # This was supposed to be a comment ])/' => 'Syntax error in (?[...]) in regex m/(?[ \t + \e # This was supposed to be a comment ])/',
6d24e9d4
KW
220 '/(?[ ])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[ {#}])/',
221 'm/(?[[a-\d]])/' => 'False [] range "a-\d" {#} m/(?[[a-\d{#}]])/',
222 'm/(?[[\w-x]])/' => 'False [] range "\w-" {#} m/(?[[\w-{#}x]])/',
223 'm/(?[[a-\pM]])/' => 'False [] range "a-\pM" {#} m/(?[[a-\pM{#}]])/',
224 'm/(?[[\pM-x]])/' => 'False [] range "\pM-" {#} m/(?[[\pM-{#}x]])/',
8f0cd35a 225 '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{#}}]])/',
b5864679
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226 'm/(?[ \p{Digit} & (?(?[ \p{Thai} | \p{Lao} ]))])/' => 'Sequence (?(...) not recognized {#} m/(?[ \p{Digit} & (?({#}?[ \p{Thai} | \p{Lao} ]))])/',
227 'm/(?[ \p{Digit} & (?:(?[ \p{Thai} | \p{Lao} ]))])/' => 'Expecting \'(?flags:(?[...\' {#} m/(?[ \p{Digit} & (?{#}:(?[ \p{Thai} | \p{Lao} ]))])/',
6d24e9d4
KW
228 'm/\o{/' => 'Missing right brace on \o{ {#} m/\o{{#}/',
229 'm/\o/' => 'Missing braces on \o{} {#} m/\o{#}/',
230 'm/\o{}/' => 'Number with no digits {#} m/\o{}{#}/',
231 'm/[\o{]/' => 'Missing right brace on \o{ {#} m/[\o{{#}]/',
232 'm/[\o]/' => 'Missing braces on \o{} {#} m/[\o{#}]/',
233 'm/[\o{}]/' => 'Number with no digits {#} m/[\o{}{#}]/',
234 'm/(?^-i:foo)/' => 'Sequence (?^-...) not recognized {#} m/(?^-{#}i:foo)/',
f1e1b256
YO
235 'm/\87/' => 'Reference to nonexistent group {#} m/\87{#}/',
236 'm/a\87/' => 'Reference to nonexistent group {#} m/a\87{#}/',
237 'm/a\97/' => 'Reference to nonexistent group {#} m/a\97{#}/',
07ea66ee
FC
238 'm/(*DOOF)/' => 'Unknown verb pattern \'DOOF\' {#} m/(*DOOF){#}/',
239 'm/(?&a/' => 'Sequence (?&... not terminated {#} m/(?&a{#}/',
75839571
FC
240 'm/(?P=/' => 'Sequence ?P=... not terminated {#} m/(?P={#}/',
241 "m/(?'/" => "Sequence (?'... not terminated {#} m/(?'{#}/",
242 "m/(?</" => "Sequence (?<... not terminated {#} m/(?<{#}/",
243 'm/(?&/' => 'Sequence (?&... not terminated {#} m/(?&{#}/',
244 'm/(?(</' => 'Sequence (?(<... not terminated {#} m/(?(<{#}/',
245 "m/(?('/" => "Sequence (?('... not terminated {#} m/(?('{#}/",
246 'm/\g{/' => 'Sequence \g{... not terminated {#} m/\g{{#}/',
247 'm/\k</' => 'Sequence \k<... not terminated {#} m/\k<{#}/',
9b8f4e92 248 'm/\cß/' => "Character following \"\\c\" must be printable ASCII",
cd209d9d
KW
249 '/((?# 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)/',
250 '/((?# 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)/',
b45f050a 251);
c1d900c3 252
67cdf558
KW
253# These are messages that are warnings when not strict; death under 'use re
254# "strict". See comment before @warnings as to why some have a \x{100} in
255# them. This array has 3 elements per construct. [0] is the regex to use;
256# [1] is the message under no strict, and [2] is under strict.
257my @death_only_under_strict = (
258 'm/\xABC/' => "",
259 => 'Use \x{...} for more than two hex characters {#} m/\xABC{#}/',
260 'm/[\xABC]/' => "",
261 => 'Use \x{...} for more than two hex characters {#} m/[\xABC{#}]/',
262
263 # XXX This is a confusing error message. The G isn't ignored; it just
264 # terminates the \x. Also some messages below are missing the <-- HERE,
265 # aren't all category 'regexp'. (Hence we have to turn off 'digit'
266 # messages as well below)
267 'm/\xAG/' => 'Illegal hexadecimal digit \'G\' ignored',
268 => 'Non-hex character {#} m/\xAG{#}/',
269 'm/[\xAG]/' => 'Illegal hexadecimal digit \'G\' ignored',
270 => 'Non-hex character {#} m/[\xAG{#}]/',
271 'm/\o{789}/' => 'Non-octal character \'8\'. Resolved as "\o{7}"',
272 => 'Non-octal character {#} m/\o{78{#}9}/',
273 'm/[\o{789}]/' => 'Non-octal character \'8\'. Resolved as "\o{7}"',
274 => 'Non-octal character {#} m/[\o{78{#}9}]/',
275 'm/\x{}/' => "",
276 => 'Number with no digits {#} m/\x{}{#}/',
277 'm/[\x{}]/' => "",
278 => 'Number with no digits {#} m/[\x{}{#}]/',
279 'm/\x{ABCDEFG}/' => 'Illegal hexadecimal digit \'G\' ignored',
280 => 'Non-hex character {#} m/\x{ABCDEFG{#}}/',
281 'm/[\x{ABCDEFG}]/' => 'Illegal hexadecimal digit \'G\' ignored',
282 => 'Non-hex character {#} m/[\x{ABCDEFG{#}}]/',
283 'm/[[:ascii]]/' => "",
284 => 'Unmatched \':\' in POSIX class {#} m/[[:ascii{#}]]/',
285 'm/[\N{}]/' => 'Ignoring zero length \\N{} in character class {#} m/[\\N{}{#}]/',
286 => 'Zero length \\N{} {#} m/[\\N{}]{#}/',
287 "m'[\\y]\\x{100}'" => 'Unrecognized escape \y in character class passed through {#} m/[\y{#}]\x{100}/',
288 => 'Unrecognized escape \y in character class {#} m/[\y{#}]\x{100}/',
289 'm/[a-\d]\x{100}/' => 'False [] range "a-\d" {#} m/[a-\d{#}]\x{100}/',
290 => 'False [] range "a-\d" {#} m/[a-\d{#}]\x{100}/',
291 'm/[\w-x]\x{100}/' => 'False [] range "\w-" {#} m/[\w-{#}x]\x{100}/',
292 => 'False [] range "\w-" {#} m/[\w-{#}x]\x{100}/',
293 'm/[a-\pM]\x{100}/' => 'False [] range "a-\pM" {#} m/[a-\pM{#}]\x{100}/',
294 => 'False [] range "a-\pM" {#} m/[a-\pM{#}]\x{100}/',
295 'm/[\pM-x]\x{100}/' => 'False [] range "\pM-" {#} m/[\pM-{#}x]\x{100}/',
296 => 'False [] range "\pM-" {#} m/[\pM-{#}x]\x{100}/',
297 '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}{#}]/',
298 => '\N{} in inverted character class or as a range end-point is restricted to one character {#} m/[^\N{U+100.300{#}}]/',
299 '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}{#}]/',
300 => '\N{} in inverted character class or as a range end-point is restricted to one character {#} m/[\x03-\N{U+100.300{#}}]/',
301 '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}]/',
302 => '\N{} in inverted character class or as a range end-point is restricted to one character {#} m/[\N{U+100.300{#}}-\x{10FFFF}]/',
303 '/[\08]/' => '\'\08\' resolved to \'\o{0}8\' {#} m/[\08{#}]/',
304 => 'Need exactly 3 octal digits {#} m/[\08{#}]/',
305 '/[\018]/' => '\'\018\' resolved to \'\o{1}8\' {#} m/[\018{#}]/',
306 => 'Need exactly 3 octal digits {#} m/[\018{#}]/',
307 '/[\_\0]/' => "",
308 => 'Need exactly 3 octal digits {#} m/[\_\0]{#}/',
309 '/[\07]/' => "",
310 => 'Need exactly 3 octal digits {#} m/[\07]{#}/',
311 '/[\0005]/' => "",
312 => 'Need exactly 3 octal digits {#} m/[\0005]{#}/',
313 '/[\8\9]\x{100}/' => ['Unrecognized escape \8 in character class passed through {#} m/[\8{#}\9]\x{100}/',
314 'Unrecognized escape \9 in character class passed through {#} m/[\8\9{#}]\x{100}/',
315 ],
316 => 'Unrecognized escape \8 in character class {#} m/[\8{#}\9]\x{100}/',
317 '/[a-\d]\x{100}/' => 'False [] range "a-\d" {#} m/[a-\d{#}]\x{100}/',
318 => 'False [] range "a-\d" {#} m/[a-\d{#}]\x{100}/',
319 '/[\d-b]\x{100}/' => 'False [] range "\d-" {#} m/[\d-{#}b]\x{100}/',
320 => 'False [] range "\d-" {#} m/[\d-{#}b]\x{100}/',
321 '/[\s-\d]\x{100}/' => 'False [] range "\s-" {#} m/[\s-{#}\d]\x{100}/',
322 => 'False [] range "\s-" {#} m/[\s-{#}\d]\x{100}/',
323 '/[\d-\s]\x{100}/' => 'False [] range "\d-" {#} m/[\d-{#}\s]\x{100}/',
324 => 'False [] range "\d-" {#} m/[\d-{#}\s]\x{100}/',
325 '/[a-[:digit:]]\x{100}/' => 'False [] range "a-[:digit:]" {#} m/[a-[:digit:]{#}]\x{100}/',
326 => 'False [] range "a-[:digit:]" {#} m/[a-[:digit:]{#}]\x{100}/',
327 '/[[:digit:]-b]\x{100}/' => 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}b]\x{100}/',
328 => 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}b]\x{100}/',
329 '/[[:alpha:]-[:digit:]]\x{100}/' => 'False [] range "[:alpha:]-" {#} m/[[:alpha:]-{#}[:digit:]]\x{100}/',
330 => 'False [] range "[:alpha:]-" {#} m/[[:alpha:]-{#}[:digit:]]\x{100}/',
331 '/[[:digit:]-[:alpha:]]\x{100}/' => 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}[:alpha:]]\x{100}/',
332 => 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}[:alpha:]]\x{100}/',
333 '/[a\zb]\x{100}/' => 'Unrecognized escape \z in character class passed through {#} m/[a\z{#}b]\x{100}/',
334 => 'Unrecognized escape \z in character class {#} m/[a\z{#}b]\x{100}/',
335);
336
b0e1d434 337# These need the character 'ネ' as a marker for mark_as_utf8()
c1d900c3
BF
338my @death_utf8 = mark_as_utf8(
339 '/ネ[[=ネ=]]ネ/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/ネ[[=ネ=]{#}]ネ/',
340 '/ネ(?<= .*)/' => 'Variable length lookbehind not implemented in regex m/ネ(?<= .*)/',
341
342 '/(?<= ネ{1000})/' => 'Lookbehind longer than 255 not implemented in regex m/(?<= ネ{1000})/',
343
344 '/ネ(?ネ)ネ/' => 'Sequence (?ネ...) not recognized {#} m/ネ(?ネ{#})ネ/',
345
476afc4b 346 '/ネ(?(1ネ))ネ/' => 'Switch condition not recognized {#} m/ネ(?(1ネ{#}))ネ/',
c1d900c3
BF
347
348 '/(?(1)ネ|y|ヌ)/' => 'Switch (?(condition)... contains too many branches {#} m/(?(1)ネ|y|{#}ヌ)/',
349
350 '/(?(ネ)y|ネ)/' => 'Unknown switch condition (?(...)) {#} m/(?(ネ{#})y|ネ)/',
351
352 '/ネ(?/' => 'Sequence (? incomplete {#} m/ネ(?{#}/',
353
354 '/ネ(?;ネ/' => 'Sequence (?;...) not recognized {#} m/ネ(?;{#}ネ/',
355 '/ネ(?<;ネ/' => 'Group name must start with a non-digit word character {#} m/ネ(?<;{#}ネ/',
356 '/ネ(?\ixネ/' => 'Sequence (?\...) not recognized {#} m/ネ(?\{#}ixネ/',
357 '/ネ(?^lu:ネ)/' => 'Regexp modifiers "l" and "u" are mutually exclusive {#} m/ネ(?^lu{#}:ネ)/',
358'/ネ(?lil:ネ)/' => 'Regexp modifier "l" may not appear twice {#} m/ネ(?lil{#}:ネ)/',
359'/ネ(?aaia:ネ)/' => 'Regexp modifier "a" may appear a maximum of twice {#} m/ネ(?aaia{#}:ネ)/',
360'/ネ(?i-l:ネ)/' => 'Regexp modifier "l" may not appear after the "-" {#} m/ネ(?i-l{#}:ネ)/',
361
362 '/ネ((ネ)/' => 'Unmatched ( {#} m/ネ({#}(ネ)/',
363
364 "/ネ{$inf_p1}ネ/" => "Quantifier in {,} bigger than $inf_m1 {#} m/ネ{{#}$inf_p1}ネ/",
365
366
367 '/ネ**ネ/' => 'Nested quantifiers {#} m/ネ**{#}ネ/',
368
369 '/ネ[ネ/' => 'Unmatched [ {#} m/ネ[{#}ネ/',
370
371 '/*ネ/', => 'Quantifier follows nothing {#} m/*{#}ネ/',
372
373 '/ネ\p{ネ/' => 'Missing right brace on \p{} {#} m/ネ\p{{#}ネ/',
374
375 '/(ネ)\2ネ/' => 'Reference to nonexistent group {#} m/(ネ)\2{#}ネ/',
376
4cabb89a 377 '/\g{ネ/; #no latin1' => 'Sequence \g{... not terminated {#} m/\g{ネ{#}/',
c1d900c3
BF
378
379 'my $m = "ネ\\\"; $m =~ $m', => 'Trailing \ in regex m/ネ\/',
380
381 '/\x{ネ/' => 'Missing right brace on \x{} {#} m/\x{{#}ネ/',
382 '/ネ[\x{ネ]ネ/' => 'Missing right brace on \x{} {#} m/ネ[\x{{#}ネ]ネ/',
383 '/ネ[\x{ネ]/' => 'Missing right brace on \x{} {#} m/ネ[\x{{#}ネ]/',
384
385 '/ネ\o{ネ/' => 'Missing right brace on \o{ {#} m/ネ\o{{#}ネ/',
386 '/ネ[[:ネ:]]ネ/' => 'POSIX class [:ネ:] unknown {#} m/ネ[[:ネ:]{#}]ネ/',
387
388 '/ネ[[=ネ=]]ネ/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/ネ[[=ネ=]{#}]ネ/',
389
390 '/ネ[[.ネ.]]ネ/' => 'POSIX syntax [. .] is reserved for future extensions {#} m/ネ[[.ネ.]{#}]ネ/',
391
392 '/[ネ-a]ネ/' => 'Invalid [] range "ネ-a" {#} m/[ネ-a{#}]ネ/',
393
394 '/ネ\p{}ネ/' => 'Empty \p{} {#} m/ネ\p{{#}}ネ/',
395
396 '/ネ(?[[[:ネ]]])ネ/' => "Unmatched ':' in POSIX class {#} m/ネ(?[[[:ネ{#}]]])ネ/",
397 '/ネ(?[[[:ネ: ])ネ/' => "Unmatched '[' in POSIX class {#} m/ネ(?[[[:ネ:{#} ])ネ/",
398 '/ネ(?[[[::]]])ネ/' => "POSIX class [::] unknown {#} m/ネ(?[[[::]{#}]])ネ/",
399 '/ネ(?[[[:ネ:]]])ネ/' => "POSIX class [:ネ:] unknown {#} m/ネ(?[[[:ネ:]{#}]])ネ/",
400 '/ネ(?[[:ネ:]])ネ/' => "POSIX class [:ネ:] unknown {#} m/ネ(?[[:ネ:]{#}])ネ/",
401 '/ネ(?[ネ])ネ/' => 'Unexpected character {#} m/ネ(?[ネ{#}])ネ/',
402 '/ネ(?[ネ])/l' => '(?[...]) not valid in locale {#} m/ネ(?[{#}ネ])/',
403 '/ネ(?[ + [ネ] ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/ネ(?[ +{#} [ネ] ])/',
404 '/ネ(?[ \cK - ( + [ネ] ) ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/ネ(?[ \cK - ( +{#} [ネ] ) ])/',
405 '/ネ(?[ \cK ( [ネ] ) ])/' => 'Unexpected \'(\' with no preceding operator {#} m/ネ(?[ \cK ({#} [ネ] ) ])/',
406 '/ネ(?[ \cK [ネ] ])ネ/' => 'Operand with no preceding operator {#} m/ネ(?[ \cK [ネ{#}] ])ネ/',
407 '/ネ(?[ \0004 ])ネ/' => 'Need exactly 3 octal digits {#} m/ネ(?[ \0004 {#}])ネ/',
408 '/(?[ \o{ネ} ])ネ/' => 'Non-octal character {#} m/(?[ \o{ネ{#}} ])ネ/',
409 '/ネ(?[ \o{} ])ネ/' => 'Number with no digits {#} m/ネ(?[ \o{}{#} ])ネ/',
410 '/(?[ \x{ネ} ])ネ/' => 'Non-hex character {#} m/(?[ \x{ネ{#}} ])ネ/',
411 '/(?[ \p{ネ} ])/' => 'Property \'ネ\' is unknown {#} m/(?[ \p{ネ}{#} ])/',
412 '/(?[ \p{ ネ = bar } ])/' => 'Property \'ネ = bar\' is unknown {#} m/(?[ \p{ ネ = bar }{#} ])/',
413 '/ネ(?[ \t ]/' => 'Syntax error in (?[...]) in regex m/ネ(?[ \t ]/',
414 '/(?[ \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 ])/',
9b8f4e92
KW
415 'm/(*ネ)ネ/' => q<Unknown verb pattern 'ネ' {#} m/(*ネ){#}ネ/>,
416 '/\cネ/' => "Character following \"\\c\" must be printable ASCII",
c1d900c3
BF
417);
418push @death, @death_utf8;
419
67cdf558
KW
420my @death_utf8_only_under_strict = (
421 "m'ネ[\\y]ネ'" => 'Unrecognized escape \y in character class passed through {#} m/ネ[\y{#}]ネ/',
422 => 'Unrecognized escape \y in character class {#} m/ネ[\y{#}]ネ/',
423 'm/ネ[ネ-\d]ネ/' => 'False [] range "ネ-\d" {#} m/ネ[ネ-\d{#}]ネ/',
424 => 'False [] range "ネ-\d" {#} m/ネ[ネ-\d{#}]ネ/',
425 'm/ネ[\w-ネ]ネ/' => 'False [] range "\w-" {#} m/ネ[\w-{#}ネ]ネ/',
426 => 'False [] range "\w-" {#} m/ネ[\w-{#}ネ]ネ/',
427 'm/ネ[ネ-\pM]ネ/' => 'False [] range "ネ-\pM" {#} m/ネ[ネ-\pM{#}]ネ/',
428 => 'False [] range "ネ-\pM" {#} m/ネ[ネ-\pM{#}]ネ/',
429 '/ネ[ネ-[:digit:]]ネ/' => 'False [] range "ネ-[:digit:]" {#} m/ネ[ネ-[:digit:]{#}]ネ/',
430 => 'False [] range "ネ-[:digit:]" {#} m/ネ[ネ-[:digit:]{#}]ネ/',
431 '/ネ[\d-\s]ネ/' => 'False [] range "\d-" {#} m/ネ[\d-{#}\s]ネ/',
432 => 'False [] range "\d-" {#} m/ネ[\d-{#}\s]ネ/',
433 '/ネ[a\zb]ネ/' => 'Unrecognized escape \z in character class passed through {#} m/ネ[a\z{#}b]ネ/',
434 => 'Unrecognized escape \z in character class {#} m/ネ[a\z{#}b]ネ/',
435);
902994e4 436# Tests involving a user-defined charnames translator are in pat_advanced.t
b45f050a 437
af01601c
KW
438# In the following arrays of warnings, the value can be an array of things to
439# expect. If the empty string, it means no warning should be raised.
440
6d24e9d4 441
499333dc
KW
442# Key-value pairs of code/error of code that should have non-fatal regexp
443# warnings. Most currently have \x{100} appended to them to force them to be
444# upgraded to UTF-8, and the first pass restarted. Previously this would
445# cause some warnings to be output twice. This tests that that behavior has
446# been fixed.
6d24e9d4 447
499333dc
KW
448my @warning = (
449 'm/\b*\x{100}/' => '\b* matches null string many times {#} m/\b*{#}\x{100}/',
450 'm/[:blank:]\x{100}/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[:blank:]{#}\x{100}/',
499333dc 451 "m'\\y\\x{100}'" => 'Unrecognized escape \y passed through {#} m/\y{#}\x{100}/',
6d24e9d4
KW
452 '/x{3,1}/' => 'Quantifier {n,m} with n > m can\'t match {#} m/x{3,1}{#}/',
453 '/\08/' => '\'\08\' resolved to \'\o{0}8\' {#} m/\08{#}/',
454 '/\018/' => '\'\018\' resolved to \'\o{1}8\' {#} m/\018{#}/',
6d24e9d4
KW
455 '/(?=a)*/' => '(?=a)* matches null string many times {#} m/(?=a)*{#}/',
456 'my $x = \'\m\'; qr/a$x/' => 'Unrecognized escape \m passed through {#} m/a\m{#}/',
457 '/\q/' => 'Unrecognized escape \q passed through {#} m/\q{#}/',
499333dc 458
e1729dc6
FC
459 # These two tests do not include the marker, because regcomp.c no
460 # longer knows where it goes by the time this warning is emitted.
461 # See [perl #122680] regcomp warning gives wrong position of
499333dc 462 # problem.
e1729dc6
FC
463 '/(?=a){1,3}\x{100}/' => 'Quantifier unexpected on zero-length expression in regex m/(?=a){1,3}\x{100}/',
464 '/(a|b)(?=a){3}\x{100}/' => 'Quantifier unexpected on zero-length expression in regex m/(a|b)(?=a){3}\x{100}/',
499333dc 465
63fbd1cb 466 '/\_/' => "",
63fbd1cb 467 '/[\006]/' => "",
499333dc
KW
468 '/[:alpha:]\x{100}/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[:alpha:]{#}\x{100}/',
469 '/[:zog:]\x{100}/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[:zog:]{#}\x{100}/',
470 '/[.zog.]\x{100}/' => 'POSIX syntax [. .] belongs inside character classes {#} m/[.zog.]{#}\x{100}/',
63fbd1cb 471 '/[a-b]/' => "",
499333dc
KW
472 '/(?c)\x{100}/' => 'Useless (?c) - use /gc modifier {#} m/(?c{#})\x{100}/',
473 '/(?-c)\x{100}/' => 'Useless (?-c) - don\'t use /gc modifier {#} m/(?-c{#})\x{100}/',
474 '/(?g)\x{100}/' => 'Useless (?g) - use /g modifier {#} m/(?g{#})\x{100}/',
475 '/(?-g)\x{100}/' => 'Useless (?-g) - don\'t use /g modifier {#} m/(?-g{#})\x{100}/',
476 '/(?o)\x{100}/' => 'Useless (?o) - use /o modifier {#} m/(?o{#})\x{100}/',
477 '/(?-o)\x{100}/' => 'Useless (?-o) - don\'t use /o modifier {#} m/(?-o{#})\x{100}/',
478 '/(?g-o)\x{100}/' => [ 'Useless (?g) - use /g modifier {#} m/(?g{#}-o)\x{100}/',
479 'Useless (?-o) - don\'t use /o modifier {#} m/(?g-o{#})\x{100}/',
63fbd1cb 480 ],
499333dc
KW
481 '/(?g-c)\x{100}/' => [ 'Useless (?g) - use /g modifier {#} m/(?g{#}-c)\x{100}/',
482 'Useless (?-c) - don\'t use /gc modifier {#} m/(?g-c{#})\x{100}/',
63fbd1cb
KW
483 ],
484 # (?c) means (?g) error won't be thrown
499333dc
KW
485 '/(?o-cg)\x{100}/' => [ 'Useless (?o) - use /o modifier {#} m/(?o{#}-cg)\x{100}/',
486 'Useless (?-c) - don\'t use /gc modifier {#} m/(?o-c{#}g)\x{100}/',
63fbd1cb 487 ],
499333dc
KW
488 '/(?ogc)\x{100}/' => [ 'Useless (?o) - use /o modifier {#} m/(?o{#}gc)\x{100}/',
489 'Useless (?g) - use /g modifier {#} m/(?og{#}c)\x{100}/',
490 'Useless (?c) - use /gc modifier {#} m/(?ogc{#})\x{100}/',
63fbd1cb 491 ],
499333dc
KW
492 '/a{1,1}?\x{100}/' => 'Useless use of greediness modifier \'?\' {#} m/a{1,1}?{#}\x{100}/',
493 '/b{3} +\x{100}/x' => 'Useless use of greediness modifier \'+\' {#} m/b{3} +{#}\x{100}/',
c877af1b
KW
494 "/(?[ [ % - % ] ])/" => "",
495 "/(?[ [ $B_hex - C ] ])/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/(?[ [ $B_hex - C {#}] ])/",
496 "/(?[ [ A - $B_hex ] ])/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/(?[ [ A - $B_hex {#}] ])/",
497 "/(?[ [ $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 {#}] ])/",
498 "/(?[ [ $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 {#}] ])/",
499333dc 499); # See comments before this for why '\x{100}' is generally needed
6fe2934b 500
b0e1d434 501# These need the character 'ネ' as a marker for mark_as_utf8()
c1d900c3
BF
502my @warnings_utf8 = mark_as_utf8(
503 'm/ネ\b*ネ/' => '\b* matches null string many times {#} m/ネ\b*{#}ネ/',
504 '/(?=ネ)*/' => '(?=ネ)* matches null string many times {#} m/(?=ネ)*{#}/',
505 'm/ネ[:foo:]ネ/' => 'POSIX syntax [: :] belongs inside character classes {#} m/ネ[:foo:]{#}ネ/',
b0e1d434 506 '/ネ(?c)ネ/' => 'Useless (?c) - use /gc modifier {#} m/ネ(?c{#})ネ/',
c1d900c3
BF
507 '/utf8 ネ (?ogc) ネ/' => [
508 'Useless (?o) - use /o modifier {#} m/utf8 ネ (?o{#}gc) ネ/',
509 'Useless (?g) - use /g modifier {#} m/utf8 ネ (?og{#}c) ネ/',
510 'Useless (?c) - use /gc modifier {#} m/utf8 ネ (?ogc{#}) ネ/',
511 ],
512
513);
514
515push @warning, @warnings_utf8;
516
63374c78 517my @warning_only_under_strict = (
b927b7e9
KW
518 '/[\N{U+00}-\x01]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\N{U+00}-\x01{#}]\x{100}/',
519 '/[\x00-\N{SOH}]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\x00-\N{U+01}{#}]\x{100}/',
520 '/[\N{DEL}-\o{377}]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\N{U+7F}-\o{377}{#}]\x{100}/',
521 '/[\o{0}-\N{U+01}]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\o{0}-\N{U+01}{#}]\x{100}/',
522 '/[\000-\N{U+01}]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\000-\N{U+01}{#}]\x{100}/',
523 '/[\N{DEL}-\377]\x{100}/' => 'Both or neither range ends should be Unicode {#} m/[\N{U+7F}-\377{#}]\x{100}/',
c877af1b
KW
524 '/[\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}/',
525 '/[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}/',
b927b7e9
KW
526 '/[\N{U+00}-\a]\x{100}/' => "",
527 '/[\a-\N{U+FF}]\x{100}/' => "",
528 '/[\N{U+FF}-\x{100}]/' => 'Both or neither range ends should be Unicode {#} m/[\N{U+FF}-\x{100}{#}]/',
529 '/[\N{U+100}-\x{101}]/' => "",
c877af1b
KW
530 "/[%-%]/" => "",
531 "/[$B_hex-C]/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/[$B_hex-C{#}]/",
532 "/[A-$B_hex]/" => "Ranges of ASCII printables should be some subset of \"0-9\", \"A-Z\", or \"a-z\" {#} m/[A-$B_hex\{#}]/",
533 "/[$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-$high_mixed_alpha\{#}]/",
534 "/[$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\{#}]/",
535);
536
537my @warning_utf8_only_under_strict = mark_as_utf8(
538 '/ネ[᪉-᪐]/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ[᪉-᪐{#}]/",
539 '/ネ(?[ [ ᪉ - ᪐ ] ])/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ(?[ [ ᪉ - ᪐ {#}] ])/",
540 '/ネ[᧙-᧚]/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ[᧙-᧚{#}]/",
541 '/ネ(?[ [ ᧙ - ᧚ ] ])/; #no latin1' => "Ranges of digits should be from the same group of 10 {#} m/ネ(?[ [ ᧙ - ᧚ {#}] ])/",
63374c78
KW
542);
543
c877af1b
KW
544push @warning_only_under_strict, @warning_utf8_only_under_strict;
545
6fe2934b 546my @experimental_regex_sets = (
6d24e9d4 547 '/(?[ \t ])/' => 'The regex_sets feature is experimental {#} m/(?[{#} \t ])/',
c1d900c3
BF
548 'use utf8; /utf8 ネ (?[ [\tネ] ])/' => do { use utf8; 'The regex_sets feature is experimental {#} m/utf8 ネ (?[{#} [\tネ] ])/' },
549 '/noutf8 ネ (?[ [\tネ] ])/' => 'The regex_sets feature is experimental {#} m/noutf8 ネ (?[{#} [\tネ] ])/',
b45f050a
JF
550);
551
63fbd1cb 552my @deprecated = (
412f55bb
KW
553 '/\w{/' => 'Unescaped left brace in regex is deprecated, passed through {#} m/\w{{#}/',
554 '/\q{/' => [
555 'Unrecognized escape \q{ passed through {#} m/\q{{#}/',
556 'Unescaped left brace in regex is deprecated, passed through {#} m/\q{{#}/'
557 ],
558 '/:{4,a}/' => 'Unescaped left brace in regex is deprecated, passed through {#} m/:{{#}4,a}/',
cc4d09e1
KW
559 '/abc/xix' => 'Having more than one /x regexp modifier is deprecated',
560 '/(?xmsixp:abc)/' => 'Having more than one /x regexp modifier is deprecated',
561 '/(?xmsixp)abc/' => 'Having more than one /x regexp modifier is deprecated',
562 '/(?xxxx:abc)/' => 'Having more than one /x regexp modifier is deprecated',
63fbd1cb
KW
563);
564
67cdf558
KW
565for my $strict ("", "use re 'strict';") {
566
567 # First time just use @death; but under strict we add the things that fail
568 # there. Doing it this way makes sure that 'strict' doesnt change the
569 # things that are already fatal when not under strict.
570 if ($strict) {
571 for (my $i = 0; $i < @death_only_under_strict; $i += 3) {
572 push @death, $death_only_under_strict[$i], # The regex
573 $death_only_under_strict[$i+2]; # The fatal msg
574 }
575 for (my $i = 0; $i < @death_utf8_only_under_strict; $i += 3) {
576
577 # Same with the utf8 versions
578 push @death, mark_as_utf8($death_utf8_only_under_strict[$i],
579 $death_utf8_only_under_strict[$i+2]);
580 }
581 }
d6609144
KW
582 for (my $i = 0; $i < @death; $i += 2) {
583 my $regex = $death[$i];
584 my $expect = fixup_expect($death[$i+1]);
585 no warnings 'experimental::regex_sets';
586 no warnings 'experimental::re_strict';
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587
588 warning_is(sub {
589 my $eval_string = "$strict $regex";
590 $_ = "x";
591 eval $eval_string;
592 like($@, qr/\Q$expect/, $eval_string);
593 }, undef, "... and died without any other warnings");
594 }
67cdf558 595}
b45f050a 596
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597for my $strict ("", "no warnings 'experimental::re_strict'; use re 'strict';") {
598 my @warning_tests = @warning;
67cdf558 599
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600 # Build the tests for @warning. Use the strict/non-strict versions
601 # appropriately.
602 if ($strict) {
603 push @warning_tests, @warning_only_under_strict;
604 }
605 else {
606 for (my $i = 0; $i < @warning_only_under_strict; $i += 2) {
607 if ($warning_only_under_strict[$i] =~ /\Q(?[/) {
608 push @warning_tests, $warning_only_under_strict[$i], # The regex
609 $warning_only_under_strict[$i+1];
610 }
611 else {
612 push @warning_tests, $warning_only_under_strict[$i], # The regex
613 ""; # No warning because not strict
614 }
615 }
67cdf558 616 for (my $i = 0; $i < @death_only_under_strict; $i += 3) {
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617 push @warning_tests, $death_only_under_strict[$i], # The regex
618 $death_only_under_strict[$i+1]; # The warning
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619 }
620 for (my $i = 0; $i < @death_utf8_only_under_strict; $i += 3) {
63374c78 621 push @warning_tests, mark_as_utf8($death_utf8_only_under_strict[$i],
d6609144 622 $death_utf8_only_under_strict[$i+1]);
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623 }
624 }
d6609144 625
63374c78 626 foreach my $ref (\@warning_tests, \@experimental_regex_sets, \@deprecated) {
d6609144 627 my $warning_type;
63374c78 628 my $turn_off_warnings = "";
d6609144 629 my $default_on;
63374c78 630 if ($ref == \@warning_tests) {
d6609144 631 $warning_type = 'regexp, digit';
63374c78 632 $turn_off_warnings = "no warnings 'experimental::regex_sets';";
d6609144 633 $default_on = $strict;
af01601c 634 }
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635 elsif ($ref == \@deprecated) {
636 $warning_type = 'regexp, deprecated';
637 $default_on = 1;
638 }
639 else {
640 $warning_type = 'experimental::regex_sets';
641 $default_on = 1;
642 }
643 for (my $i = 0; $i < @$ref; $i += 2) {
644 my $regex = $ref->[$i];
645 my @expect = fixup_expect($ref->[$i+1]);
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646
647 # A length-1 array with an empty warning means no warning gets
648 # generated at all.
649 undef @expect if @expect == 1 && $expect[0] eq "";
650
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651 {
652 $_ = "x";
653 eval "$strict no warnings; $regex";
af01601c 654 }
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655 if (is($@, "", "$strict $regex did not die")) {
656 my @got = capture_warnings(sub {
657 $_ = "x";
63374c78 658 eval "$strict $turn_off_warnings $regex" });
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659 my $count = @expect;
660 if (! is(scalar @got, scalar @expect,
661 "... and gave expected number ($count) of warnings"))
662 {
663 if (@got < @expect) {
664 $count = @got;
665 note "Expected warnings not gotten:\n\t" . join "\n\t",
666 @expect[$count .. $#expect];
667 }
668 else {
669 note "Unexpected warnings gotten:\n\t" . join("\n\t",
670 @got[$count .. $#got]);
671 }
b0b90d25 672 }
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673 foreach my $i (0 .. $count - 1) {
674 if (! like($got[$i], qr/\Q$expect[$i]/,
675 "... and gave expected warning"))
676 {
677 chomp($got[$i]);
678 chomp($expect[$i]);
679 diag("GOT\n'$got[$i]'\nEXPECT\n'$expect[$i]'");
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680 }
681 else {
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682 ok (0 == capture_warnings(sub {
683 $_ = "x";
684 eval "$strict no warnings '$warning_type'; $regex;" }
685 ),
686 "... and turning off '$warning_type' warnings suppressed it");
687
688 # Test that whether the warning is on by default is
689 # correct. This test relies on the fact that we
690 # are outside the scope of any ‘use warnings’.
691 local $^W;
692 my @warns = capture_warnings(sub { $_ = "x";
693 eval "$strict $regex" });
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694 # Warning should be on as well if is testing
695 # '(?[...])' which turns on strict
696 if ($default_on || grep { $_ =~ /\Q(?[/ } @expect ) {
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697 ok @warns > 0, "... and the warning is on by default";
698 }
699 else {
700 ok @warns == 0, "... and the warning is off by default";
701 }
67cdf558 702 }
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703 }
704 }
b42857f3 705 }
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706 }
707}
b45f050a 708
cb79f740 709done_testing();