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cond |
sub |
pod |
time |
code |
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1
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package Perl::Lint::Policy::ControlStructures::ProhibitMutatingListFunctions; |
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2
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133
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133
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75646
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use strict; |
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133
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168
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133
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3087
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3
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133
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133
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382
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use warnings; |
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133
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161
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133
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2338
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4
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133
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133
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756
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use Perl::Lint::Constants::Type; |
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133
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151
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133
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60673
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5
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133
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133
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575
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use parent "Perl::Lint::Policy"; |
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133
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174
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133
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563
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6
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7
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use constant { |
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8
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133
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158639
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DESC => q{Don't modify $_ in list functions}, |
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9
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EXPL => [114], |
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10
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133
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133
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6799
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}; |
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133
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171
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11
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12
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my %_target_functions = ( |
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13
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map => 1, |
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14
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grep => 1, |
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15
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first => 1, |
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16
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any => 1, |
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17
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all => 1, |
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18
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none => 1, |
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19
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notall => 1, |
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20
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true => 1, |
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21
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false => 1, |
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22
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firstidx => 1, |
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23
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first_index => 1, |
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24
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lastidx => 1, |
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25
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last_index => 1, |
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26
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insert_after => 1, |
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27
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insert_after_string => 1, |
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28
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); |
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29
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30
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my %assigner = ( |
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31
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&ASSIGN => 1, |
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32
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&POWER_EQUAL => 1, |
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33
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&ADD_EQUAL => 1, |
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34
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&MUL_EQUAL => 1, |
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35
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&AND_BIT_EQUAL => 1, |
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36
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&SUB_EQUAL => 1, |
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37
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&DIV_EQUAL => 1, |
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38
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&OR_BIT_EQUAL => 1, |
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39
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&MOD_EQUAL => 1, |
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40
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&NOT_BIT_EQUAL => 1, |
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41
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&DEFAULT_EQUAL => 1, |
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42
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&AND_EQUAL => 1, |
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43
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&OR_EQUAL => 1, |
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44
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&STRING_ADD_EQUAL => 1, |
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45
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&LEFT_SHIFT_EQUAL => 1, |
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46
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&RIGHT_SHIFT_EQUAL => 1, |
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47
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); |
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48
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49
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my %reg_replace_token_types = ( |
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50
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®_REPLACE => 1, |
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51
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®_ALL_REPLACE => 1, |
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52
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); |
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53
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54
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sub evaluate { |
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55
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17
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17
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0
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28
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my ($class, $file, $tokens, $src, $args) = @_; |
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56
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57
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17
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108
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my %target_functions = %_target_functions; |
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58
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17
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100
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44
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if (my $this_policies_arg = $args->{prohibit_mutating_list_functions}) { |
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59
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3
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100
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12
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if (my $list_funcs = $this_policies_arg->{list_funcs}) { |
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60
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2
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6
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%target_functions = (); |
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61
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2
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19
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$target_functions{$_} = 1 for split /\s+/, $list_funcs; |
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62
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} |
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63
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64
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3
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100
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11
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if (my $add_list_funcs = $this_policies_arg->{add_list_funcs}) { |
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65
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1
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9
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$target_functions{$_} = 1 for split /\s+/, $add_list_funcs; |
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66
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} |
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67
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} |
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68
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69
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17
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19
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my @violations; |
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70
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# use Data::Dumper::Concise; warn Dumper($tokens); # TODO remove |
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71
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17
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43
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for (my $i = 0, my $token_type, my $token_data; my $token = $tokens->[$i]; $i++) { |
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72
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685
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471
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$token_type = $token->{type}; |
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73
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685
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429
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$token_data = $token->{data}; |
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74
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75
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685
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100
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100
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1864
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if ($token_type == BUILTIN_FUNC || $token_type == KEY) { |
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76
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108
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100
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143
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if ($target_functions{$token_data}) { |
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77
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106
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50
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173
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$token = $tokens->[++$i] or last; |
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78
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106
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50
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134
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if ($token->{type} != LEFT_BRACE) { |
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79
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0
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0
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next; |
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80
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} |
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81
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82
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106
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64
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my $lbnum = 1; |
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83
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106
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157
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for ($i++; $token = $tokens->[$i]; $i++) { |
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84
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195
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125
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$token_type = $token->{type}; |
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85
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195
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144
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$token_data = $token->{data}; |
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86
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87
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195
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100
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66
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1101
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if ($token_type == LEFT_BRACE) { |
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100
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100
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100
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100
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100
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100
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100
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100
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88
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1
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2
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$lbnum++; |
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89
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} |
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90
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elsif ($token_type == RIGHT_BRACE) { |
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91
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9
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50
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25
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last if --$lbnum <= 0; |
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92
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} |
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93
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elsif ($token_type == SPECIFIC_VALUE && $token_data eq '$_') { |
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94
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44
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50
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65
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$token = $tokens->[++$i] or last; |
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95
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44
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31
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$token_type = $token->{type}; |
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96
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97
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44
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100
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55
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if ($token_type == RIGHT_BRACE) { |
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98
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2
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50
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9
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last if --$lbnum <= 0; |
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99
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} |
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100
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101
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# for assign |
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102
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42
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100
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100
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132
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if ( |
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100
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103
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$assigner{$token_type} || |
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104
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$token_type == PLUSPLUS || $token_type == MINUSMINUS |
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105
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) { |
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106
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push @violations, { |
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107
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filename => $file, |
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108
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line => $token->{line}, |
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109
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21
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56
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description => DESC, |
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110
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explanation => EXPL, |
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111
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policy => __PACKAGE__, |
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112
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}; |
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113
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21
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41
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last; |
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114
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} |
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115
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116
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# for replace by regex |
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117
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21
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100
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34
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if ($token_type == REG_OK) { |
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118
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19
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50
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31
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$token = $tokens->[++$i] or last; |
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119
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19
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15
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$token_type = $token->{type}; |
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120
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121
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19
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50
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26
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if ($reg_replace_token_types{$token_type}) { |
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122
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19
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13
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my $is_replace_to_empty = 0; |
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123
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19
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13
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my $is_equal_src_between_dst = 0; |
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124
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125
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19
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12
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my $replace_to; |
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126
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my $replace_from; |
|
127
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19
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28
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for ($i++; $token = $tokens->[$i]; $i++) { |
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128
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76
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56
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$token_type = $token->{type}; |
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129
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76
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100
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130
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if ($token_type == REG_REPLACE_FROM) { |
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100
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130
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19
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27
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$replace_from = $token->{data}; |
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131
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} |
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132
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elsif ($token_type == REG_REPLACE_TO) { |
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133
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19
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14
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$replace_to = $token->{data}; |
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134
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19
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100
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29
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if ($replace_to eq '') { |
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100
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135
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8
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7
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$is_replace_to_empty = 1; |
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136
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} |
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137
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elsif ($replace_to eq $replace_from) { |
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138
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8
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5
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$is_equal_src_between_dst =1; |
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139
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} |
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140
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19
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17
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$i++; # at last reg delim |
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141
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19
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14
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last; |
|
142
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} |
|
143
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} |
|
144
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145
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19
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100
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39
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my $is_replaced = !$is_replace_to_empty && !$is_equal_src_between_dst; |
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146
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19
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50
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27
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if ($token = $tokens->[++$i]) { |
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147
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19
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100
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66
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70
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if ($token->{type} == REG_OPT and my @opts = $token->{data} =~ /([cdrs])/g) { |
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148
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12
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12
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my %opts = map {$_ => 1} @opts; |
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12
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20
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149
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150
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12
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50
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24
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if ($opts{r}) { |
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151
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0
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0
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$is_replaced = 0; |
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152
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} |
|
153
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else { |
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154
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12
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100
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13
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if ($opts{c}) { |
|
155
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4
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6
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$is_replaced = $is_equal_src_between_dst; |
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156
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} |
|
157
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158
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12
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100
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15
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if ($opts{d}) { |
|
159
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4
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5
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$is_replaced = $is_replace_to_empty; |
|
160
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} |
|
161
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162
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12
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100
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18
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if ($opts{s}) { |
|
163
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4
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66
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11
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$is_replaced = $is_replace_to_empty || $is_equal_src_between_dst; |
|
164
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} |
|
165
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} |
|
166
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} |
|
167
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} |
|
168
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169
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19
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100
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26
|
if (!$is_replaced) { |
|
170
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8
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15
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last; |
|
171
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} |
|
172
|
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173
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push @violations, { |
|
174
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|
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filename => $file, |
|
175
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|
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line => $token->{line}, |
|
176
|
11
|
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29
|
description => DESC, |
|
177
|
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|
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explanation => EXPL, |
|
178
|
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|
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policy => __PACKAGE__, |
|
179
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|
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|
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}; |
|
180
|
11
|
|
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|
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24
|
last; |
|
181
|
|
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|
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} |
|
182
|
|
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|
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} |
|
183
|
|
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|
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} |
|
184
|
|
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|
|
elsif ($token_type == PLUSPLUS || $token_type == MINUSMINUS) { |
|
185
|
2
|
50
|
|
|
|
5
|
$token = $tokens->[++$i] or last; |
|
186
|
2
|
50
|
33
|
|
|
11
|
if ($token->{type} == SPECIFIC_VALUE && $token->{data} eq '$_') { |
|
187
|
|
|
|
|
|
|
push @violations, { |
|
188
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|
|
filename => $file, |
|
189
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|
|
|
|
|
|
line => $token->{line}, |
|
190
|
2
|
|
|
|
|
7
|
description => DESC, |
|
191
|
|
|
|
|
|
|
explanation => EXPL, |
|
192
|
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|
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|
|
policy => __PACKAGE__, |
|
193
|
|
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|
|
|
|
}; |
|
194
|
2
|
|
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|
4
|
last; |
|
195
|
|
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|
|
} |
|
196
|
|
|
|
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|
|
} |
|
197
|
|
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|
|
|
|
elsif ($reg_replace_token_types{$token_type}) { |
|
198
|
41
|
50
|
|
|
|
63
|
my $before_token = $tokens->[$i-1] or next; |
|
199
|
41
|
50
|
|
|
|
56
|
if ($before_token->{type} != REG_OK) { |
|
200
|
41
|
|
|
|
|
29
|
my $is_replace_to_empty = 0; |
|
201
|
41
|
|
|
|
|
20
|
my $is_equal_src_between_dst = 0; |
|
202
|
|
|
|
|
|
|
|
|
203
|
41
|
|
|
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|
28
|
my $replace_to; |
|
204
|
|
|
|
|
|
|
my $replace_from; |
|
205
|
41
|
|
|
|
|
58
|
for ($i++; $token = $tokens->[$i]; $i++) { |
|
206
|
164
|
|
|
|
|
105
|
$token_type = $token->{type}; |
|
207
|
164
|
100
|
|
|
|
264
|
if ($token_type == REG_REPLACE_FROM) { |
|
|
|
100
|
|
|
|
|
|
|
208
|
41
|
|
|
|
|
55
|
$replace_from = $token->{data}; |
|
209
|
|
|
|
|
|
|
} |
|
210
|
|
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|
|
|
|
elsif ($token_type == REG_REPLACE_TO) { |
|
211
|
41
|
|
|
|
|
29
|
$replace_to = $token->{data}; |
|
212
|
41
|
100
|
|
|
|
57
|
if ($replace_to eq '') { |
|
|
|
100
|
|
|
|
|
|
|
213
|
16
|
|
|
|
|
13
|
$is_replace_to_empty = 1; |
|
214
|
|
|
|
|
|
|
} |
|
215
|
|
|
|
|
|
|
elsif ($replace_to eq $replace_from) { |
|
216
|
16
|
|
|
|
|
14
|
$is_equal_src_between_dst =1; |
|
217
|
|
|
|
|
|
|
} |
|
218
|
41
|
|
|
|
|
26
|
$i++; # at last reg delim |
|
219
|
41
|
|
|
|
|
29
|
last; |
|
220
|
|
|
|
|
|
|
} |
|
221
|
|
|
|
|
|
|
} |
|
222
|
|
|
|
|
|
|
|
|
223
|
41
|
|
100
|
|
|
76
|
my $is_replaced = !$is_replace_to_empty && !$is_equal_src_between_dst; |
|
224
|
41
|
50
|
|
|
|
55
|
if ($token = $tokens->[++$i]) { |
|
225
|
41
|
100
|
100
|
|
|
163
|
if ($token->{type} == REG_OPT and my @opts = $token->{data} =~ /([cdrs])/g) { |
|
226
|
27
|
|
|
|
|
26
|
my %opts = map {$_ => 1} @opts; |
|
|
27
|
|
|
|
|
45
|
|
|
227
|
|
|
|
|
|
|
|
|
228
|
27
|
100
|
|
|
|
34
|
if ($opts{r}) { |
|
229
|
3
|
|
|
|
|
5
|
$is_replaced = 0; |
|
230
|
|
|
|
|
|
|
} |
|
231
|
|
|
|
|
|
|
else { |
|
232
|
24
|
100
|
|
|
|
32
|
if ($opts{c}) { |
|
233
|
8
|
|
|
|
|
6
|
$is_replaced = $is_equal_src_between_dst; |
|
234
|
|
|
|
|
|
|
} |
|
235
|
|
|
|
|
|
|
|
|
236
|
24
|
100
|
|
|
|
27
|
if ($opts{d}) { |
|
237
|
8
|
|
|
|
|
8
|
$is_replaced = $is_replace_to_empty; |
|
238
|
|
|
|
|
|
|
} |
|
239
|
|
|
|
|
|
|
|
|
240
|
24
|
100
|
|
|
|
36
|
if ($opts{s}) { |
|
241
|
8
|
|
66
|
|
|
20
|
$is_replaced = $is_replace_to_empty || $is_equal_src_between_dst; |
|
242
|
|
|
|
|
|
|
} |
|
243
|
|
|
|
|
|
|
} |
|
244
|
|
|
|
|
|
|
} |
|
245
|
|
|
|
|
|
|
} |
|
246
|
|
|
|
|
|
|
|
|
247
|
41
|
100
|
|
|
|
51
|
if (!$is_replaced) { |
|
248
|
19
|
|
|
|
|
35
|
last; |
|
249
|
|
|
|
|
|
|
} |
|
250
|
|
|
|
|
|
|
|
|
251
|
|
|
|
|
|
|
push @violations, { |
|
252
|
|
|
|
|
|
|
filename => $file, |
|
253
|
|
|
|
|
|
|
line => $token->{line}, |
|
254
|
22
|
|
|
|
|
51
|
description => DESC, |
|
255
|
|
|
|
|
|
|
explanation => EXPL, |
|
256
|
|
|
|
|
|
|
policy => __PACKAGE__, |
|
257
|
|
|
|
|
|
|
}; |
|
258
|
22
|
|
|
|
|
47
|
last; |
|
259
|
|
|
|
|
|
|
} |
|
260
|
|
|
|
|
|
|
} |
|
261
|
|
|
|
|
|
|
elsif ($token_type == KEY || $token_type == BUILTIN_FUNC || $token_type == DEFAULT) { |
|
262
|
21
|
100
|
100
|
|
|
64
|
if ($token_data eq 'chop' || $token_data eq 'chomp') { |
|
|
|
100
|
|
|
|
|
|
|
|
|
100
|
|
|
|
|
|
|
263
|
13
|
50
|
|
|
|
41
|
$token = $tokens->[++$i] or last; |
|
264
|
13
|
|
|
|
|
47
|
$token_type = $token->{type}; |
|
265
|
13
|
|
|
|
|
11
|
$token_data = $token->{data}; |
|
266
|
13
|
100
|
66
|
|
|
56
|
if ($token_type == SEMI_COLON || $token_type == RIGHT_BRACE) { |
|
|
|
100
|
66
|
|
|
|
|
|
|
|
100
|
|
|
|
|
|
|
267
|
|
|
|
|
|
|
push @violations, { |
|
268
|
|
|
|
|
|
|
filename => $file, |
|
269
|
|
|
|
|
|
|
line => $token->{line}, |
|
270
|
2
|
|
|
|
|
8
|
description => DESC, |
|
271
|
|
|
|
|
|
|
explanation => EXPL, |
|
272
|
|
|
|
|
|
|
policy => __PACKAGE__, |
|
273
|
|
|
|
|
|
|
}; |
|
274
|
2
|
|
|
|
|
5
|
last; |
|
275
|
|
|
|
|
|
|
} |
|
276
|
|
|
|
|
|
|
elsif ($token_type == SPECIFIC_VALUE && $token_data eq '$_') { |
|
277
|
|
|
|
|
|
|
push @violations, { |
|
278
|
|
|
|
|
|
|
filename => $file, |
|
279
|
|
|
|
|
|
|
line => $token->{line}, |
|
280
|
4
|
|
|
|
|
16
|
description => DESC, |
|
281
|
|
|
|
|
|
|
explanation => EXPL, |
|
282
|
|
|
|
|
|
|
policy => __PACKAGE__, |
|
283
|
|
|
|
|
|
|
}; |
|
284
|
4
|
|
|
|
|
9
|
last; |
|
285
|
|
|
|
|
|
|
} |
|
286
|
|
|
|
|
|
|
elsif ($token_type == LEFT_PAREN) { |
|
287
|
6
|
50
|
|
|
|
11
|
$token = $tokens->[++$i] or last; |
|
288
|
6
|
100
|
|
|
|
9
|
if ($token->{type} == RIGHT_PAREN) { |
|
289
|
|
|
|
|
|
|
push @violations, { |
|
290
|
|
|
|
|
|
|
filename => $file, |
|
291
|
|
|
|
|
|
|
line => $token->{line}, |
|
292
|
2
|
|
|
|
|
7
|
description => DESC, |
|
293
|
|
|
|
|
|
|
explanation => EXPL, |
|
294
|
|
|
|
|
|
|
policy => __PACKAGE__, |
|
295
|
|
|
|
|
|
|
}; |
|
296
|
2
|
|
|
|
|
6
|
last; |
|
297
|
|
|
|
|
|
|
} |
|
298
|
|
|
|
|
|
|
|
|
299
|
4
|
|
|
|
|
5
|
my $lpnum = 1; |
|
300
|
4
|
|
|
|
|
7
|
for (; $token = $tokens->[$i]; $i++) { |
|
301
|
4
|
|
|
|
|
5
|
$token_type = $token->{type}; |
|
302
|
|
|
|
|
|
|
|
|
303
|
4
|
50
|
33
|
|
|
22
|
if ($token_type == LEFT_PAREN) { |
|
|
|
50
|
|
|
|
|
|
|
|
|
50
|
|
|
|
|
|
|
304
|
0
|
|
|
|
|
0
|
$lpnum++; |
|
305
|
|
|
|
|
|
|
} |
|
306
|
|
|
|
|
|
|
elsif ($token_type == RIGHT_PAREN) { |
|
307
|
0
|
0
|
|
|
|
0
|
last if --$lpnum <= 0; |
|
308
|
|
|
|
|
|
|
} |
|
309
|
|
|
|
|
|
|
elsif ($token_type == SPECIFIC_VALUE && $token->{data} eq '$_') { |
|
310
|
|
|
|
|
|
|
push @violations, { |
|
311
|
|
|
|
|
|
|
filename => $file, |
|
312
|
|
|
|
|
|
|
line => $token->{line}, |
|
313
|
4
|
|
|
|
|
13
|
description => DESC, |
|
314
|
|
|
|
|
|
|
explanation => EXPL, |
|
315
|
|
|
|
|
|
|
policy => __PACKAGE__, |
|
316
|
|
|
|
|
|
|
}; |
|
317
|
4
|
|
|
|
|
9
|
last; |
|
318
|
|
|
|
|
|
|
} |
|
319
|
|
|
|
|
|
|
} |
|
320
|
|
|
|
|
|
|
} |
|
321
|
|
|
|
|
|
|
} |
|
322
|
|
|
|
|
|
|
elsif ($token_data eq 'undef') { |
|
323
|
6
|
50
|
|
|
|
11
|
$token = $tokens->[++$i] or last; |
|
324
|
6
|
|
|
|
|
6
|
$token_type = $token->{type}; |
|
325
|
6
|
|
|
|
|
7
|
$token_data = $token->{data}; |
|
326
|
6
|
100
|
66
|
|
|
22
|
if ($token_type == SPECIFIC_VALUE && $token_data eq '$_') { |
|
|
|
100
|
|
|
|
|
|
|
327
|
|
|
|
|
|
|
push @violations, { |
|
328
|
|
|
|
|
|
|
filename => $file, |
|
329
|
|
|
|
|
|
|
line => $token->{line}, |
|
330
|
2
|
|
|
|
|
6
|
description => DESC, |
|
331
|
|
|
|
|
|
|
explanation => EXPL, |
|
332
|
|
|
|
|
|
|
policy => __PACKAGE__, |
|
333
|
|
|
|
|
|
|
}; |
|
334
|
2
|
|
|
|
|
7
|
last; |
|
335
|
|
|
|
|
|
|
} |
|
336
|
|
|
|
|
|
|
elsif ($token_type == LEFT_PAREN) { |
|
337
|
3
|
|
|
|
|
2
|
my $lpnum = 1; |
|
338
|
3
|
|
|
|
|
8
|
for (; $token = $tokens->[$i]; $i++) { |
|
339
|
9
|
|
|
|
|
6
|
$token_type = $token->{type}; |
|
340
|
|
|
|
|
|
|
|
|
341
|
9
|
100
|
66
|
|
|
34
|
if ($token_type == LEFT_PAREN) { |
|
|
|
100
|
|
|
|
|
|
|
|
|
100
|
|
|
|
|
|
|
342
|
3
|
|
|
|
|
5
|
$lpnum++; |
|
343
|
|
|
|
|
|
|
} |
|
344
|
|
|
|
|
|
|
elsif ($token_type == RIGHT_PAREN) { |
|
345
|
1
|
50
|
|
|
|
5
|
last if --$lpnum <= 0; |
|
346
|
|
|
|
|
|
|
} |
|
347
|
|
|
|
|
|
|
elsif ($token_type == SPECIFIC_VALUE && $token->{data} eq '$_') { |
|
348
|
|
|
|
|
|
|
push @violations, { |
|
349
|
|
|
|
|
|
|
filename => $file, |
|
350
|
|
|
|
|
|
|
line => $token->{line}, |
|
351
|
2
|
|
|
|
|
6
|
description => DESC, |
|
352
|
|
|
|
|
|
|
explanation => EXPL, |
|
353
|
|
|
|
|
|
|
policy => __PACKAGE__, |
|
354
|
|
|
|
|
|
|
}; |
|
355
|
2
|
|
|
|
|
4
|
last; |
|
356
|
|
|
|
|
|
|
} |
|
357
|
|
|
|
|
|
|
} |
|
358
|
|
|
|
|
|
|
} |
|
359
|
|
|
|
|
|
|
} |
|
360
|
|
|
|
|
|
|
elsif ($token_data eq 'substr') { |
|
361
|
1
|
50
|
|
|
|
4
|
$token = $tokens->[++$i] or last; |
|
362
|
|
|
|
|
|
|
|
|
363
|
1
|
50
|
|
|
|
3
|
if ($token_type == LEFT_PAREN) { |
|
364
|
0
|
0
|
|
|
|
0
|
$token = $tokens->[++$i] or last; |
|
365
|
|
|
|
|
|
|
} |
|
366
|
|
|
|
|
|
|
|
|
367
|
1
|
50
|
33
|
|
|
7
|
if ($token->{type} == SPECIFIC_VALUE && $token->{data} eq '$_') { |
|
368
|
|
|
|
|
|
|
push @violations, { |
|
369
|
|
|
|
|
|
|
filename => $file, |
|
370
|
|
|
|
|
|
|
line => $token->{line}, |
|
371
|
1
|
|
|
|
|
5
|
description => DESC, |
|
372
|
|
|
|
|
|
|
explanation => EXPL, |
|
373
|
|
|
|
|
|
|
policy => __PACKAGE__, |
|
374
|
|
|
|
|
|
|
}; |
|
375
|
1
|
|
|
|
|
3
|
last; |
|
376
|
|
|
|
|
|
|
} |
|
377
|
|
|
|
|
|
|
} |
|
378
|
|
|
|
|
|
|
} |
|
379
|
|
|
|
|
|
|
} |
|
380
|
|
|
|
|
|
|
} |
|
381
|
|
|
|
|
|
|
} |
|
382
|
|
|
|
|
|
|
} |
|
383
|
|
|
|
|
|
|
|
|
384
|
17
|
|
|
|
|
75
|
return \@violations; |
|
385
|
|
|
|
|
|
|
} |
|
386
|
|
|
|
|
|
|
|
|
387
|
|
|
|
|
|
|
1; |
|
388
|
|
|
|
|
|
|
|