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Move t/re/reg_unsafe.t's test to a fresh_perl_is() inside pat_advanced.t
[perl5.git] / t / re / reg_mesg.t
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1#!./perl -w
2
3BEGIN {
4 chdir 't' if -d 't';
20822f61 5 @INC = '../lib';
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6}
7
8my $debug = 1;
9
10##
11## If the markers used are changed (search for "MARKER1" in regcomp.c),
12## update only these two variables, and leave the {#} in the @death/@warning
13## arrays below. The {#} is a meta-marker -- it marks where the marker should
14## go.
15
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16my $marker1 = "<-- HERE";
17my $marker2 = " <-- HERE ";
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18
19##
20## Key-value pairs of code/error of code that should have fatal errors.
21##
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22
23eval 'use Config'; # assume defaults if fail
24our %Config;
25my $inf_m1 = ($Config{reg_infty} || 32767) - 1;
26my $inf_p1 = $inf_m1 + 2;
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27my @death =
28(
7253e4e3 29 '/[[=foo=]]/' => 'POSIX syntax [= =] is reserved for future extensions in regex; marked by {#} in m/[[=foo=]{#}]/',
b45f050a 30
58e23c8d 31 '/(?<= .*)/' => 'Variable length lookbehind not implemented in regex m/(?<= .*)/',
b45f050a 32
58e23c8d 33 '/(?<= x{1000})/' => 'Lookbehind longer than 255 not implemented in regex m/(?<= x{1000})/',
b45f050a 34
7253e4e3 35 '/(?@)/' => 'Sequence (?@...) not implemented in regex; marked by {#} in m/(?@{#})/',
b45f050a 36
7253e4e3 37 '/(?{ 1/' => 'Sequence (?{...}) not terminated or not {}-balanced in regex; marked by {#} in m/(?{{#} 1/',
b45f050a 38
7253e4e3 39 '/(?(1x))/' => 'Switch condition not recognized in regex; marked by {#} in m/(?(1x{#}))/',
b45f050a 40
7253e4e3 41 '/(?(1)x|y|z)/' => 'Switch (?(condition)... contains too many branches in regex; marked by {#} in m/(?(1)x|y|{#}z)/',
b45f050a 42
7253e4e3 43 '/(?(x)y|x)/' => 'Unknown switch condition (?(x) in regex; marked by {#} in m/(?({#}x)y|x)/',
b45f050a 44
7253e4e3 45 '/(?/' => 'Sequence (? incomplete in regex; marked by {#} in m/(?{#}/',
b45f050a 46
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47 '/(?;x/' => 'Sequence (?;...) not recognized in regex; marked by {#} in m/(?;{#}x/',
48 '/(?<;x/' => 'Sequence (?<;...) not recognized in regex; marked by {#} in m/(?<;{#}x/',
b45f050a 49
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50 '/(?\ix/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}ix/',
51 '/(?\mx/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}mx/',
52 '/(?\:x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}:x/',
53 '/(?\=x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}=x/',
54 '/(?\!x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}!x/',
55 '/(?\<=x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}<=x/',
56 '/(?\<!x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}<!x/',
57 '/(?\>x/' => 'Sequence (?\...) not recognized in regex; marked by {#} in m/(?\{#}>x/',
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58 '/(?^-i:foo)/' => 'Sequence (?^-...) not recognized in regex; marked by {#} in m/(?^-{#}i:foo)/',
59 '/(?^-i)foo/' => 'Sequence (?^-...) not recognized in regex; marked by {#} in m/(?^-{#}i)foo/',
60 '/(?^d:foo)/' => 'Sequence (?^d...) not recognized in regex; marked by {#} in m/(?^d{#}:foo)/',
61 '/(?^d)foo/' => 'Sequence (?^d...) not recognized in regex; marked by {#} in m/(?^d{#})foo/',
62 '/(?^lu:foo)/' => 'Sequence (?^lu...) not recognized in regex; marked by {#} in m/(?^lu{#}:foo)/',
63 '/(?^lu)foo/' => 'Sequence (?^lu...) not recognized in regex; marked by {#} in m/(?^lu{#})foo/',
cc74c5bd 64
7253e4e3 65 '/((x)/' => 'Unmatched ( in regex; marked by {#} in m/({#}(x)/',
b45f050a 66
7253e4e3 67 "/x{$inf_p1}/" => "Quantifier in {,} bigger than $inf_m1 in regex; marked by {#} in m/x{{#}$inf_p1}/",
b45f050a 68
7253e4e3 69 '/x{3,1}/' => 'Can\'t do {n,m} with n > m in regex; marked by {#} in m/x{3,1}{#}/',
b45f050a 70
7253e4e3 71 '/x**/' => 'Nested quantifiers in regex; marked by {#} in m/x**{#}/',
b45f050a 72
7253e4e3 73 '/x[/' => 'Unmatched [ in regex; marked by {#} in m/x[{#}/',
b45f050a 74
7253e4e3 75 '/*/', => 'Quantifier follows nothing in regex; marked by {#} in m/*{#}/',
b45f050a 76
7253e4e3 77 '/\p{x/' => 'Missing right brace on \p{} in regex; marked by {#} in m/\p{{#}x/',
b45f050a 78
169da838 79 '/[\p{x]/' => 'Missing right brace on \p{} in regex; marked by {#} in m/[\p{{#}x]/',
b45f050a 80
7253e4e3 81 '/(x)\2/' => 'Reference to nonexistent group in regex; marked by {#} in m/(x)\2{#}/',
b45f050a 82
40809656 83 'my $m = "\\\"; $m =~ $m', => 'Trailing \ in regex m/\/',
b45f050a 84
7253e4e3 85 '/\x{1/' => 'Missing right brace on \x{} in regex; marked by {#} in m/\x{{#}1/',
b45f050a 86
169da838 87 '/[\x{X]/' => 'Missing right brace on \x{} in regex; marked by {#} in m/[\x{{#}X]/',
b45f050a 88
7253e4e3 89 '/[[:barf:]]/' => 'POSIX class [:barf:] unknown in regex; marked by {#} in m/[[:barf:]{#}]/',
b45f050a 90
7253e4e3 91 '/[[=barf=]]/' => 'POSIX syntax [= =] is reserved for future extensions in regex; marked by {#} in m/[[=barf=]{#}]/',
b45f050a 92
7253e4e3 93 '/[[.barf.]]/' => 'POSIX syntax [. .] is reserved for future extensions in regex; marked by {#} in m/[[.barf.]{#}]/',
b45f050a 94
7253e4e3 95 '/[z-a]/' => 'Invalid [] range "z-a" in regex; marked by {#} in m/[z-a{#}]/',
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96
97 '/\p/' => 'Empty \p{} in regex; marked by {#} in m/\p{#}/',
98
99 '/\P{}/' => 'Empty \P{} in regex; marked by {#} in m/\P{{#}}/',
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100);
101
102##
103## Key-value pairs of code/error of code that should have non-fatal warnings.
104##
105@warning = (
7253e4e3 106 'm/\b*/' => '\b* matches null string many times in regex; marked by {#} in m/\b*{#}/',
b45f050a 107
7253e4e3 108 'm/[:blank:]/' => 'POSIX syntax [: :] belongs inside character classes in regex; marked by {#} in m/[:blank:]{#}/',
b45f050a 109
7253e4e3 110 "m'[\\y]'" => 'Unrecognized escape \y in character class passed through in regex; marked by {#} in m/[\y{#}]/',
b45f050a 111
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112 'm/[a-\d]/' => 'False [] range "a-\d" in regex; marked by {#} in m/[a-\d{#}]/',
113 'm/[\w-x]/' => 'False [] range "\w-" in regex; marked by {#} in m/[\w-{#}x]/',
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114 'm/[a-\pM]/' => 'False [] range "a-\pM" in regex; marked by {#} in m/[a-\pM{#}]/',
115 'm/[\pM-x]/' => 'False [] range "\pM-" in regex; marked by {#} in m/[\pM-{#}x]/',
7253e4e3 116 "m'\\y'" => 'Unrecognized escape \y passed through in regex; marked by {#} in m/\y{#}/',
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117);
118
119my $total = (@death + @warning)/2;
120
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121# utf8 is a noop on EBCDIC platforms, it is not fatal
122my $Is_EBCDIC = (ord('A') == 193);
123if ($Is_EBCDIC) {
124 my @utf8_death = grep(/utf8/, @death);
7387eed8 125 $total = $total - @utf8_death;
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126}
127
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128print "1..$total\n";
129
130my $count = 0;
131
132while (@death)
133{
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134 my $regex = shift @death;
135 my $result = shift @death;
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136 # skip the utf8 test on EBCDIC since they do not die
137 next if ($Is_EBCDIC && $regex =~ /utf8/);
138 $count++;
b45f050a 139
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140 $_ = "x";
141 eval $regex;
142 if (not $@) {
69f2e79d 143 print "# oops, $regex didn't die\nnot ok $count\n";
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144 next;
145 }
146 chomp $@;
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147 $result =~ s/{\#}/$marker1/;
148 $result =~ s/{\#}/$marker2/;
197cf9b9 149 $result .= " at ";
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150 if ($@ !~ /^\Q$result/) {
151 print "# For $regex, expected:\n# $result\n# Got:\n# $@\n#\nnot ";
b45f050a 152 }
d8176a88 153 print "ok $count - $regex\n";
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154}
155
156
157our $warning;
158$SIG{__WARN__} = sub { $warning = shift };
159
160while (@warning)
161{
162 $count++;
163 my $regex = shift @warning;
164 my $result = shift @warning;
165
166 undef $warning;
167 $_ = "x";
168 eval $regex;
169
170 if ($@)
171 {
69f2e79d 172 print "# oops, $regex died with:\n#\t$@#\nnot ok $count\n";
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173 next;
174 }
175
176 if (not $warning)
177 {
69f2e79d 178 print "# oops, $regex didn't generate a warning\nnot ok $count\n";
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179 next;
180 }
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181 $result =~ s/{\#}/$marker1/;
182 $result =~ s/{\#}/$marker2/;
197cf9b9 183 $result .= " at ";
69f2e79d 184 if ($warning !~ /^\Q$result/)
b45f050a 185 {
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186 print <<"EOM";
187# For $regex, expected:
188# $result
189# Got:
190# $warning
191#
192not ok $count
193EOM
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194 next;
195 }
d8176a88 196 print "ok $count - $regex\n";
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197}
198
199
200