7 eval 'require Config'; # assume defaults if this fails
11 use open qw(:utf8 :std);
14 ## If the markers used are changed (search for "MARKER1" in regcomp.c),
15 ## update only these two regexs, and leave the {#} in the @death/@warning
16 ## arrays below. The {#} is a meta-marker -- it marks where the marker should
19 ## Returns empty string if that is what is expected. Otherwise, handles
20 ## either a scalar, turning it into a single element array; or a ref to an
21 ## array, adjusting each element. If called in array context, returns an
22 ## array, otherwise the join of all elements
25 my $expect_ref = shift;
26 return if $expect_ref eq "";
29 if (ref $expect_ref) {
30 @expect = @$expect_ref;
33 @expect = $expect_ref;
36 foreach my $element (@expect) {
37 $element =~ s/{\#}/in regex; marked by <-- HERE in/;
38 $element =~ s/{\#}/ <-- HERE /;
41 return wantarray ? @expect : join "", @expect;
44 ## Because we don't "use utf8" in this file, we need to do some extra legwork
45 ## for the utf8 tests: Append 'use utf8' to the pattern, and mark the strings
46 ## to check against as UTF-8
48 ## This also creates a second variant of the tests to check if the
49 ## latin1 error messages are working correctly.
51 my $utf8 = "\x{30cd}";
56 while ( my ($pat, $msg) = splice(@_, 0, 2) ) {
57 my $l1_pat = $pat =~ s/$utf8/$l1/gr;
59 $pat = "use utf8; $pat";
62 $l1_msg = [ map { s/$utf8/$l1/gr } @$msg ];
63 @$msg = map { my $c = $_; utf8::decode($c); $c } @$msg;
66 $l1_msg = $msg =~ s/$utf8/$l1/gr;
69 push @ret, $pat => $msg;
70 push @ret, $l1_pat => $l1_msg unless $l1_pat =~ /#no latin1/;
75 my $inf_m1 = ($Config::Config{reg_infty} || 32767) - 1;
76 my $inf_p1 = $inf_m1 + 2;
79 ## Key-value pairs of code/error of code that should have fatal errors.
83 '/[[=foo=]]/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/[[=foo=]{#}]/',
85 '/(?<= .*)/' => 'Variable length lookbehind not implemented in regex m/(?<= .*)/',
87 '/(?<= x{1000})/' => 'Lookbehind longer than 255 not implemented in regex m/(?<= x{1000})/',
89 '/(?@)/' => 'Sequence (?@...) not implemented {#} m/(?@{#})/',
91 '/(?{ 1/' => 'Missing right curly or square bracket',
93 '/(?(1x))/' => 'Switch condition not recognized {#} m/(?(1x{#}))/',
95 '/(?(1)x|y|z)/' => 'Switch (?(condition)... contains too many branches {#} m/(?(1)x|y|{#}z)/',
97 '/(?(x)y|x)/' => 'Unknown switch condition (?(...)) {#} m/(?(x{#})y|x)/',
99 '/(?/' => 'Sequence (? incomplete {#} m/(?{#}/',
101 '/(?;x/' => 'Sequence (?;...) not recognized {#} m/(?;{#}x/',
102 '/(?<;x/' => 'Group name must start with a non-digit word character {#} m/(?<;{#}x/',
103 '/(?\ix/' => 'Sequence (?\...) not recognized {#} m/(?\{#}ix/',
104 '/(?\mx/' => 'Sequence (?\...) not recognized {#} m/(?\{#}mx/',
105 '/(?\:x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}:x/',
106 '/(?\=x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}=x/',
107 '/(?\!x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}!x/',
108 '/(?\<=x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}<=x/',
109 '/(?\<!x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}<!x/',
110 '/(?\>x/' => 'Sequence (?\...) not recognized {#} m/(?\{#}>x/',
111 '/(?^-i:foo)/' => 'Sequence (?^-...) not recognized {#} m/(?^-{#}i:foo)/',
112 '/(?^-i)foo/' => 'Sequence (?^-...) not recognized {#} m/(?^-{#}i)foo/',
113 '/(?^d:foo)/' => 'Sequence (?^d...) not recognized {#} m/(?^d{#}:foo)/',
114 '/(?^d)foo/' => 'Sequence (?^d...) not recognized {#} m/(?^d{#})foo/',
115 '/(?^lu:foo)/' => 'Regexp modifiers "l" and "u" are mutually exclusive {#} m/(?^lu{#}:foo)/',
116 '/(?^lu)foo/' => 'Regexp modifiers "l" and "u" are mutually exclusive {#} m/(?^lu{#})foo/',
117 '/(?da:foo)/' => 'Regexp modifiers "d" and "a" are mutually exclusive {#} m/(?da{#}:foo)/',
118 '/(?lil:foo)/' => 'Regexp modifier "l" may not appear twice {#} m/(?lil{#}:foo)/',
119 '/(?aaia:foo)/' => 'Regexp modifier "a" may appear a maximum of twice {#} m/(?aaia{#}:foo)/',
120 '/(?i-l:foo)/' => 'Regexp modifier "l" may not appear after the "-" {#} m/(?i-l{#}:foo)/',
122 '/((x)/' => 'Unmatched ( {#} m/({#}(x)/',
124 "/x{$inf_p1}/" => "Quantifier in {,} bigger than $inf_m1 {#} m/x{{#}$inf_p1}/",
127 '/x**/' => 'Nested quantifiers {#} m/x**{#}/',
129 '/x[/' => 'Unmatched [ {#} m/x[{#}/',
131 '/*/', => 'Quantifier follows nothing {#} m/*{#}/',
133 '/\p{x/' => 'Missing right brace on \p{} {#} m/\p{{#}x/',
135 '/[\p{x]/' => 'Missing right brace on \p{} {#} m/[\p{{#}x]/',
137 '/(x)\2/' => 'Reference to nonexistent group {#} m/(x)\2{#}/',
139 '/\g/' => 'Unterminated \g... pattern {#} m/\g{#}/',
140 '/\g{1/' => 'Unterminated \g{...} pattern {#} m/\g{1{#}/',
142 'my $m = "\\\"; $m =~ $m', => 'Trailing \ in regex m/\/',
144 '/\x{1/' => 'Missing right brace on \x{} {#} m/\x{1{#}/',
145 '/\x{X/' => 'Missing right brace on \x{} {#} m/\x{{#}X/',
147 '/[\x{X]/' => 'Missing right brace on \x{} {#} m/[\x{{#}X]/',
148 '/[\x{A]/' => 'Missing right brace on \x{} {#} m/[\x{A{#}]/',
150 '/\o{1/' => 'Missing right brace on \o{ {#} m/\o{1{#}/',
151 '/\o{X/' => 'Missing right brace on \o{ {#} m/\o{{#}X/',
153 '/[\o{X]/' => 'Missing right brace on \o{ {#} m/[\o{{#}X]/',
154 '/[\o{7]/' => 'Missing right brace on \o{ {#} m/[\o{7{#}]/',
156 '/[[:barf:]]/' => 'POSIX class [:barf:] unknown {#} m/[[:barf:]{#}]/',
158 '/[[=barf=]]/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/[[=barf=]{#}]/',
160 '/[[.barf.]]/' => 'POSIX syntax [. .] is reserved for future extensions {#} m/[[.barf.]{#}]/',
162 '/[z-a]/' => 'Invalid [] range "z-a" {#} m/[z-a{#}]/',
164 '/\p/' => 'Empty \p{} {#} m/\p{#}/',
166 '/\P{}/' => 'Empty \P{} {#} m/\P{{#}}/',
167 '/(?[[[:word]]])/' => "Unmatched ':' in POSIX class {#} m/(?[[[:word{#}]]])/",
168 '/(?[[:word]])/' => "Unmatched ':' in POSIX class {#} m/(?[[:word{#}]])/",
169 '/(?[[[:digit: ])/' => "Unmatched '[' in POSIX class {#} m/(?[[[:digit:{#} ])/",
170 '/(?[[:digit: ])/' => "Unmatched '[' in POSIX class {#} m/(?[[:digit:{#} ])/",
171 '/(?[[[::]]])/' => "POSIX class [::] unknown {#} m/(?[[[::]{#}]])/",
172 '/(?[[[:w:]]])/' => "POSIX class [:w:] unknown {#} m/(?[[[:w:]{#}]])/",
173 '/(?[[:w:]])/' => "POSIX class [:w:] unknown {#} m/(?[[:w:]{#}])/",
174 '/(?[a])/' => 'Unexpected character {#} m/(?[a{#}])/',
175 '/(?[\t])/l' => '(?[...]) not valid in locale {#} m/(?[{#}\t])/',
176 '/(?[ + \t ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/(?[ +{#} \t ])/',
177 '/(?[ \cK - ( + \t ) ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/(?[ \cK - ( +{#} \t ) ])/',
178 '/(?[ \cK ( \t ) ])/' => 'Unexpected \'(\' with no preceding operator {#} m/(?[ \cK ({#} \t ) ])/',
179 '/(?[ \cK \t ])/' => 'Operand with no preceding operator {#} m/(?[ \cK \t{#} ])/',
180 '/(?[ \0004 ])/' => 'Need exactly 3 octal digits {#} m/(?[ \0004 {#}])/',
181 '/(?[ \05 ])/' => 'Need exactly 3 octal digits {#} m/(?[ \05 {#}])/',
182 '/(?[ \o{1038} ])/' => 'Non-octal character {#} m/(?[ \o{1038{#}} ])/',
183 '/(?[ \o{} ])/' => 'Number with no digits {#} m/(?[ \o{}{#} ])/',
184 '/(?[ \x{defg} ])/' => 'Non-hex character {#} m/(?[ \x{defg{#}} ])/',
185 '/(?[ \xabcdef ])/' => 'Use \\x{...} for more than two hex characters {#} m/(?[ \xabc{#}def ])/',
186 '/(?[ \x{} ])/' => 'Number with no digits {#} m/(?[ \x{}{#} ])/',
187 '/(?[ \cK + ) ])/' => 'Unexpected \')\' {#} m/(?[ \cK + ){#} ])/',
188 '/(?[ \cK + ])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[ \cK + {#}])/',
189 '/(?[ \p{foo} ])/' => 'Property \'foo\' is unknown {#} m/(?[ \p{foo}{#} ])/',
190 '/(?[ \p{ foo = bar } ])/' => 'Property \'foo = bar\' is unknown {#} m/(?[ \p{ foo = bar }{#} ])/',
191 '/(?[ \8 ])/' => 'Unrecognized escape \8 in character class {#} m/(?[ \8{#} ])/',
192 '/(?[ \t ]/' => 'Syntax error in (?[...]) in regex m/(?[ \t ]/',
193 '/(?[ [ \t ]/' => 'Syntax error in (?[...]) in regex m/(?[ [ \t ]/',
194 '/(?[ \t ] ]/' => 'Syntax error in (?[...]) in regex m/(?[ \t ] ]/',
195 '/(?[ [ ] ]/' => 'Syntax error in (?[...]) in regex m/(?[ [ ] ]/',
196 '/(?[ \t + \e # This was supposed to be a comment ])/' => 'Syntax error in (?[...]) in regex m/(?[ \t + \e # This was supposed to be a comment ])/',
197 '/(?[ ])/' => 'Incomplete expression within \'(?[ ])\' {#} m/(?[ {#}])/',
198 'm/(?[[a-\d]])/' => 'False [] range "a-\d" {#} m/(?[[a-\d{#}]])/',
199 'm/(?[[\w-x]])/' => 'False [] range "\w-" {#} m/(?[[\w-{#}x]])/',
200 'm/(?[[a-\pM]])/' => 'False [] range "a-\pM" {#} m/(?[[a-\pM{#}]])/',
201 'm/(?[[\pM-x]])/' => 'False [] range "\pM-" {#} m/(?[[\pM-{#}x]])/',
202 'm/(?[[\N{LATIN CAPITAL LETTER A WITH MACRON AND GRAVE}]])/' => '\N{} in character class restricted to one character {#} m/(?[[\N{U+100.300{#}}]])/',
203 'm/(?[ \p{Digit} & (?(?[ \p{Thai} | \p{Lao} ]))])/' => 'Sequence (?(...) not recognized {#} m/(?[ \p{Digit} & (?({#}?[ \p{Thai} | \p{Lao} ]))])/',
204 'm/(?[ \p{Digit} & (?:(?[ \p{Thai} | \p{Lao} ]))])/' => 'Expecting \'(?flags:(?[...\' {#} m/(?[ \p{Digit} & (?{#}:(?[ \p{Thai} | \p{Lao} ]))])/',
205 'm/\o{/' => 'Missing right brace on \o{ {#} m/\o{{#}/',
206 'm/\o/' => 'Missing braces on \o{} {#} m/\o{#}/',
207 'm/\o{}/' => 'Number with no digits {#} m/\o{}{#}/',
208 'm/[\o{]/' => 'Missing right brace on \o{ {#} m/[\o{{#}]/',
209 'm/[\o]/' => 'Missing braces on \o{} {#} m/[\o{#}]/',
210 'm/[\o{}]/' => 'Number with no digits {#} m/[\o{}{#}]/',
211 'm/(?^-i:foo)/' => 'Sequence (?^-...) not recognized {#} m/(?^-{#}i:foo)/',
212 'm/\87/' => 'Reference to nonexistent group {#} m/\87{#}/',
213 'm/a\87/' => 'Reference to nonexistent group {#} m/a\87{#}/',
214 'm/a\97/' => 'Reference to nonexistent group {#} m/a\97{#}/',
215 'm/(*DOOF)/' => 'Unknown verb pattern \'DOOF\' {#} m/(*DOOF){#}/'
218 my @death_utf8 = mark_as_utf8(
219 '/ネ[[=ネ=]]ネ/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/ネ[[=ネ=]{#}]ネ/',
220 '/ネ(?<= .*)/' => 'Variable length lookbehind not implemented in regex m/ネ(?<= .*)/',
222 '/(?<= ネ{1000})/' => 'Lookbehind longer than 255 not implemented in regex m/(?<= ネ{1000})/',
224 '/ネ(?ネ)ネ/' => 'Sequence (?ネ...) not recognized {#} m/ネ(?ネ{#})ネ/',
226 # TODO S_nextchar() deals in chars, not in characters, which leaves
228 # '/ネ(?(1ネ))ネ/' => 'Switch condition not recognized {#} m/ネ(?(1ネ{#}))ネ/',
230 '/(?(1)ネ|y|ヌ)/' => 'Switch (?(condition)... contains too many branches {#} m/(?(1)ネ|y|{#}ヌ)/',
232 '/(?(ネ)y|ネ)/' => 'Unknown switch condition (?(...)) {#} m/(?(ネ{#})y|ネ)/',
234 '/ネ(?/' => 'Sequence (? incomplete {#} m/ネ(?{#}/',
236 '/ネ(?;ネ/' => 'Sequence (?;...) not recognized {#} m/ネ(?;{#}ネ/',
237 '/ネ(?<;ネ/' => 'Group name must start with a non-digit word character {#} m/ネ(?<;{#}ネ/',
238 '/ネ(?\ixネ/' => 'Sequence (?\...) not recognized {#} m/ネ(?\{#}ixネ/',
239 '/ネ(?^lu:ネ)/' => 'Regexp modifiers "l" and "u" are mutually exclusive {#} m/ネ(?^lu{#}:ネ)/',
240 '/ネ(?lil:ネ)/' => 'Regexp modifier "l" may not appear twice {#} m/ネ(?lil{#}:ネ)/',
241 '/ネ(?aaia:ネ)/' => 'Regexp modifier "a" may appear a maximum of twice {#} m/ネ(?aaia{#}:ネ)/',
242 '/ネ(?i-l:ネ)/' => 'Regexp modifier "l" may not appear after the "-" {#} m/ネ(?i-l{#}:ネ)/',
244 '/ネ((ネ)/' => 'Unmatched ( {#} m/ネ({#}(ネ)/',
246 "/ネ{$inf_p1}ネ/" => "Quantifier in {,} bigger than $inf_m1 {#} m/ネ{{#}$inf_p1}ネ/",
249 '/ネ**ネ/' => 'Nested quantifiers {#} m/ネ**{#}ネ/',
251 '/ネ[ネ/' => 'Unmatched [ {#} m/ネ[{#}ネ/',
253 '/*ネ/', => 'Quantifier follows nothing {#} m/*{#}ネ/',
255 '/ネ\p{ネ/' => 'Missing right brace on \p{} {#} m/ネ\p{{#}ネ/',
257 '/(ネ)\2ネ/' => 'Reference to nonexistent group {#} m/(ネ)\2{#}ネ/',
259 '/\g{ネ/; #no latin1' => 'Sequence \g{... not terminated {#} m/\g{ネ{#}/',
261 'my $m = "ネ\\\"; $m =~ $m', => 'Trailing \ in regex m/ネ\/',
263 '/\x{ネ/' => 'Missing right brace on \x{} {#} m/\x{{#}ネ/',
264 '/ネ[\x{ネ]ネ/' => 'Missing right brace on \x{} {#} m/ネ[\x{{#}ネ]ネ/',
265 '/ネ[\x{ネ]/' => 'Missing right brace on \x{} {#} m/ネ[\x{{#}ネ]/',
267 '/ネ\o{ネ/' => 'Missing right brace on \o{ {#} m/ネ\o{{#}ネ/',
268 '/ネ[[:ネ:]]ネ/' => 'POSIX class [:ネ:] unknown {#} m/ネ[[:ネ:]{#}]ネ/',
270 '/ネ[[=ネ=]]ネ/' => 'POSIX syntax [= =] is reserved for future extensions {#} m/ネ[[=ネ=]{#}]ネ/',
272 '/ネ[[.ネ.]]ネ/' => 'POSIX syntax [. .] is reserved for future extensions {#} m/ネ[[.ネ.]{#}]ネ/',
274 '/[ネ-a]ネ/' => 'Invalid [] range "ネ-a" {#} m/[ネ-a{#}]ネ/',
276 '/ネ\p{}ネ/' => 'Empty \p{} {#} m/ネ\p{{#}}ネ/',
278 '/ネ(?[[[:ネ]]])ネ/' => "Unmatched ':' in POSIX class {#} m/ネ(?[[[:ネ{#}]]])ネ/",
279 '/ネ(?[[[:ネ: ])ネ/' => "Unmatched '[' in POSIX class {#} m/ネ(?[[[:ネ:{#} ])ネ/",
280 '/ネ(?[[[::]]])ネ/' => "POSIX class [::] unknown {#} m/ネ(?[[[::]{#}]])ネ/",
281 '/ネ(?[[[:ネ:]]])ネ/' => "POSIX class [:ネ:] unknown {#} m/ネ(?[[[:ネ:]{#}]])ネ/",
282 '/ネ(?[[:ネ:]])ネ/' => "POSIX class [:ネ:] unknown {#} m/ネ(?[[:ネ:]{#}])ネ/",
283 '/ネ(?[ネ])ネ/' => 'Unexpected character {#} m/ネ(?[ネ{#}])ネ/',
284 '/ネ(?[ネ])/l' => '(?[...]) not valid in locale {#} m/ネ(?[{#}ネ])/',
285 '/ネ(?[ + [ネ] ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/ネ(?[ +{#} [ネ] ])/',
286 '/ネ(?[ \cK - ( + [ネ] ) ])/' => 'Unexpected binary operator \'+\' with no preceding operand {#} m/ネ(?[ \cK - ( +{#} [ネ] ) ])/',
287 '/ネ(?[ \cK ( [ネ] ) ])/' => 'Unexpected \'(\' with no preceding operator {#} m/ネ(?[ \cK ({#} [ネ] ) ])/',
288 '/ネ(?[ \cK [ネ] ])ネ/' => 'Operand with no preceding operator {#} m/ネ(?[ \cK [ネ{#}] ])ネ/',
289 '/ネ(?[ \0004 ])ネ/' => 'Need exactly 3 octal digits {#} m/ネ(?[ \0004 {#}])ネ/',
290 '/(?[ \o{ネ} ])ネ/' => 'Non-octal character {#} m/(?[ \o{ネ{#}} ])ネ/',
291 '/ネ(?[ \o{} ])ネ/' => 'Number with no digits {#} m/ネ(?[ \o{}{#} ])ネ/',
292 '/(?[ \x{ネ} ])ネ/' => 'Non-hex character {#} m/(?[ \x{ネ{#}} ])ネ/',
293 '/(?[ \p{ネ} ])/' => 'Property \'ネ\' is unknown {#} m/(?[ \p{ネ}{#} ])/',
294 '/(?[ \p{ ネ = bar } ])/' => 'Property \'ネ = bar\' is unknown {#} m/(?[ \p{ ネ = bar }{#} ])/',
295 '/ネ(?[ \t ]/' => 'Syntax error in (?[...]) in regex m/ネ(?[ \t ]/',
296 '/(?[ \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 ])/',
297 'm/(*ネ)ネ/' => q<Unknown verb pattern 'ネ' {#} m/(*ネ){#}ネ/>
299 push @death, @death_utf8;
301 # Tests involving a user-defined charnames translator are in pat_advanced.t
303 # In the following arrays of warnings, the value can be an array of things to
304 # expect. If the empty string, it means no warning should be raised.
307 ## Key-value pairs of code/error of code that should have non-fatal regexp warnings.
310 'm/\b*/' => '\b* matches null string many times {#} m/\b*{#}/',
311 'm/[:blank:]/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[:blank:]{#}/',
313 "m'[\\y]'" => 'Unrecognized escape \y in character class passed through {#} m/[\y{#}]/',
315 'm/[a-\d]/' => 'False [] range "a-\d" {#} m/[a-\d{#}]/',
316 'm/[\w-x]/' => 'False [] range "\w-" {#} m/[\w-{#}x]/',
317 'm/[a-\pM]/' => 'False [] range "a-\pM" {#} m/[a-\pM{#}]/',
318 'm/[\pM-x]/' => 'False [] range "\pM-" {#} m/[\pM-{#}x]/',
319 "m'\\y'" => 'Unrecognized escape \y passed through {#} m/\y{#}/',
320 '/x{3,1}/' => 'Quantifier {n,m} with n > m can\'t match {#} m/x{3,1}{#}/',
321 '/\08/' => '\'\08\' resolved to \'\o{0}8\' {#} m/\08{#}/',
322 '/\018/' => '\'\018\' resolved to \'\o{1}8\' {#} m/\018{#}/',
323 '/[\08]/' => '\'\08\' resolved to \'\o{0}8\' {#} m/[\08{#}]/',
324 '/[\018]/' => '\'\018\' resolved to \'\o{1}8\' {#} m/[\018{#}]/',
325 '/(?=a)*/' => '(?=a)* matches null string many times {#} m/(?=a)*{#}/',
326 'my $x = \'\m\'; qr/a$x/' => 'Unrecognized escape \m passed through {#} m/a\m{#}/',
327 '/\q/' => 'Unrecognized escape \q passed through {#} m/\q{#}/',
328 '/\q{/' => 'Unrecognized escape \q{ passed through {#} m/\q{{#}/',
329 '/(?=a){1,3}/' => 'Quantifier unexpected on zero-length expression {#} m/(?=a){1,3}{#}/',
330 '/(a|b)(?=a){3}/' => 'Quantifier unexpected on zero-length expression {#} m/(a|b)(?=a){3}{#}/',
336 '/[\8\9]/' => ['Unrecognized escape \8 in character class passed through {#} m/[\8{#}\9]/',
337 'Unrecognized escape \9 in character class passed through {#} m/[\8\9{#}]/',
339 '/[:alpha:]/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[:alpha:]{#}/',
340 '/[:zog:]/' => 'POSIX syntax [: :] belongs inside character classes {#} m/[:zog:]{#}/',
341 '/[.zog.]/' => 'POSIX syntax [. .] belongs inside character classes {#} m/[.zog.]{#}/',
343 '/[a-\d]/' => 'False [] range "a-\d" {#} m/[a-\d{#}]/',
344 '/[\d-b]/' => 'False [] range "\d-" {#} m/[\d-{#}b]/',
345 '/[\s-\d]/' => 'False [] range "\s-" {#} m/[\s-{#}\d]/',
346 '/[\d-\s]/' => 'False [] range "\d-" {#} m/[\d-{#}\s]/',
347 '/[a-[:digit:]]/' => 'False [] range "a-[:digit:]" {#} m/[a-[:digit:]{#}]/',
348 '/[[:digit:]-b]/' => 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}b]/',
349 '/[[:alpha:]-[:digit:]]/' => 'False [] range "[:alpha:]-" {#} m/[[:alpha:]-{#}[:digit:]]/',
350 '/[[:digit:]-[:alpha:]]/' => 'False [] range "[:digit:]-" {#} m/[[:digit:]-{#}[:alpha:]]/',
351 '/[a\zb]/' => 'Unrecognized escape \z in character class passed through {#} m/[a\z{#}b]/',
352 '/(?c)/' => 'Useless (?c) - use /gc modifier {#} m/(?c{#})/',
353 '/(?-c)/' => 'Useless (?-c) - don\'t use /gc modifier {#} m/(?-c{#})/',
354 '/(?g)/' => 'Useless (?g) - use /g modifier {#} m/(?g{#})/',
355 '/(?-g)/' => 'Useless (?-g) - don\'t use /g modifier {#} m/(?-g{#})/',
356 '/(?o)/' => 'Useless (?o) - use /o modifier {#} m/(?o{#})/',
357 '/(?-o)/' => 'Useless (?-o) - don\'t use /o modifier {#} m/(?-o{#})/',
358 '/(?g-o)/' => [ 'Useless (?g) - use /g modifier {#} m/(?g{#}-o)/',
359 'Useless (?-o) - don\'t use /o modifier {#} m/(?g-o{#})/',
361 '/(?g-c)/' => [ 'Useless (?g) - use /g modifier {#} m/(?g{#}-c)/',
362 'Useless (?-c) - don\'t use /gc modifier {#} m/(?g-c{#})/',
364 # (?c) means (?g) error won't be thrown
365 '/(?o-cg)/' => [ 'Useless (?o) - use /o modifier {#} m/(?o{#}-cg)/',
366 'Useless (?-c) - don\'t use /gc modifier {#} m/(?o-c{#}g)/',
368 '/(?ogc)/' => [ 'Useless (?o) - use /o modifier {#} m/(?o{#}gc)/',
369 'Useless (?g) - use /g modifier {#} m/(?og{#}c)/',
370 'Useless (?c) - use /gc modifier {#} m/(?ogc{#})/',
374 my @warnings_utf8 = mark_as_utf8(
375 'm/ネ\b*ネ/' => '\b* matches null string many times {#} m/ネ\b*{#}ネ/',
376 '/(?=ネ)*/' => '(?=ネ)* matches null string many times {#} m/(?=ネ)*{#}/',
377 'm/ネ[:foo:]ネ/' => 'POSIX syntax [: :] belongs inside character classes {#} m/ネ[:foo:]{#}ネ/',
378 "m'ネ[\\y]ネ'" => 'Unrecognized escape \y in character class passed through {#} m/ネ[\y{#}]ネ/',
379 'm/ネ[ネ-\d]ネ/' => 'False [] range "ネ-\d" {#} m/ネ[ネ-\d{#}]ネ/',
380 'm/ネ[\w-ネ]ネ/' => 'False [] range "\w-" {#} m/ネ[\w-{#}ネ]ネ/',
381 'm/ネ[ネ-\pM]ネ/' => 'False [] range "ネ-\pM" {#} m/ネ[ネ-\pM{#}]ネ/',
382 '/ネ[ネ-[:digit:]]ネ/' => 'False [] range "ネ-[:digit:]" {#} m/ネ[ネ-[:digit:]{#}]ネ/',
383 '/ネ[\d-\s]ネ/' => 'False [] range "\d-" {#} m/ネ[\d-{#}\s]ネ/',
384 '/ネ[a\zb]ネ/' => 'Unrecognized escape \z in character class passed through {#} m/ネ[a\z{#}b]ネ/',
385 '/ネ(?c)ネ/' => 'Useless (?c) - use /gc modifier {#} m/ネ(?c{#})ネ/',
386 '/utf8 ネ (?ogc) ネ/' => [
387 'Useless (?o) - use /o modifier {#} m/utf8 ネ (?o{#}gc) ネ/',
388 'Useless (?g) - use /g modifier {#} m/utf8 ネ (?og{#}c) ネ/',
389 'Useless (?c) - use /gc modifier {#} m/utf8 ネ (?ogc{#}) ネ/',
394 push @warning, @warnings_utf8;
396 my @experimental_regex_sets = (
397 '/(?[ \t ])/' => 'The regex_sets feature is experimental {#} m/(?[{#} \t ])/',
398 'use utf8; /utf8 ネ (?[ [\tネ] ])/' => do { use utf8; 'The regex_sets feature is experimental {#} m/utf8 ネ (?[{#} [\tネ] ])/' },
399 '/noutf8 ネ (?[ [\tネ] ])/' => 'The regex_sets feature is experimental {#} m/noutf8 ネ (?[{#} [\tネ] ])/',
403 '/a\b{cde/' => '"\b{" is deprecated; use "\b\{" or "\b[{]" instead {#} m/a\{#}b{cde/',
404 '/a\B{cde/' => '"\B{" is deprecated; use "\B\{" or "\B[{]" instead {#} m/a\{#}B{cde/',
405 "/(?x)latin1\\\x{85}\x{85}\\\x{85}/" => 'Escape literal pattern white space under /x {#} ' . "m/(?x)latin1\\\x{85}\x{85}{#}\\\x{85}/",
406 'use utf8; /(?x)utf8\
\85\85\
\85/' => 'Escape literal pattern white space under /x {#} ' . "m/(?x)utf8\\\N{NEXT LINE}\N{NEXT LINE}{#}\\\N{NEXT LINE}/",
407 '/((?# 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)/',
408 '/((?# 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)/',
411 while (my ($regex, $expect) = splice @death, 0, 2) {
412 my $expect = fixup_expect($expect);
413 no warnings 'experimental::regex_sets';
414 # skip the utf8 test on EBCDIC since they do not die
415 next if $::IS_EBCDIC && $regex =~ /utf8/;
420 like($@, qr/\Q$expect/, $regex);
421 }, undef, "... and died without any other warnings");
424 foreach my $ref (\@warning, \@experimental_regex_sets, \@deprecated) {
425 my $warning_type = ($ref == \@warning)
427 : ($ref == \@deprecated)
428 ? 'regexp, deprecated'
429 : 'experimental::regex_sets';
430 while (my ($regex, $expect) = splice @$ref, 0, 2) {
431 my @expect = fixup_expect($expect);
437 if (is($@, "", "$regex did not die")) {
438 my @got = capture_warnings(sub {
442 if (! is(scalar @got, scalar @expect, "... and gave expected number ($count) of warnings")) {
443 if (@got < @expect) {
445 note "Expected warnings not gotten:\n\t" . join "\n\t", @expect[$count .. $#expect];
448 note "Unexpected warnings gotten:\n\t" . join("\n\t", @got[$count .. $#got]);
451 foreach my $i (0 .. $count - 1) {
452 if (! like($got[$i], qr/\Q$expect[$i]/, "... and gave expected warning")) {
455 diag("GOT\n'$got[$i]'\nEXPECT\n'$expect[$i]'");
458 ok (0 == capture_warnings(sub {
460 eval "no warnings '$warning_type'; $regex;" }
462 "... and turning off '$warning_type' warnings suppressed it");
463 # Test that whether the warning is on by default is
464 # correct. Experimental and deprecated warnings are;
465 # others are not. This test relies on the fact that we
466 # are outside the scope of any ‘use warnings’.
468 my $on = 'on' x ($warning_type ne 'regexp');
470 capture_warnings(sub { $_ = "x"; eval $regex }),
471 "... and the warning is " . ($on||'off')