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