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package Term::ANSIColorx::AutoFilterFH; |
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4986
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use Carp; |
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3
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1172
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use Symbol; |
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2007
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157
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6
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2651
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use Tie::Handle; |
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5101
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3
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65
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use base 'Tie::StdHandle'; |
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269
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17
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use base 'Exporter'; |
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192
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537
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use Term::ANSIColor qw(color colorvalid); |
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8386
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3
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1033
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11
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sub import { |
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my @__; |
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100
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41
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my $color_package = Term::ANSIColorx::ColorNicknames->can("import") |
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? "Term::ANSIColorx::ColorNicknames" |
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: "Term::ANSIColor"; |
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17
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for(@_) { |
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50
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if( m/\Acolor.?package\s*=\s*(\S+)\z/ ) { |
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0
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0
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$color_package = $1 |
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21
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} else { |
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11
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push @__, $_ |
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} |
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} |
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26
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# Exporter warns when we re-export color and colorvalid with a different prototype |
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4
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16
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local $SIG{__WARN__} = sub {}; # and there's really no good way to disable it |
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# so we just disable the warning signal for a sec |
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30
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#arn qq{ use $color_package qw(color colorvalid); 1 }; |
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3
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50
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3
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eval qq{ use $color_package qw(color colorvalid); 1 } |
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5
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3
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114
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3
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204
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32
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or die $@; |
33
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34
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3
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3790
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__PACKAGE__->export_to_level(1, @__); |
35
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} |
36
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37
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3
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3
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429
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use common::sense; |
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3
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16
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3
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13
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38
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39
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our $VERSION = '2.7193'; |
40
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our @EXPORT_OK = qw(filtered_handle); |
41
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42
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my %pf2t; |
43
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my %orig; |
44
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my %pats; |
45
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my %trun; |
46
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47
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my (@icolors, $RESET); |
48
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49
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# DESTROY {{{ |
50
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sub DESTROY { |
51
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4
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4
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391
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my $this = shift; |
52
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53
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4
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14
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for my $pfft (keys %pf2t) { |
54
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5
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50
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21
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if( $pf2t{$pfft} == $this ) { |
55
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0
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0
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delete $pf2t{$pfft}; |
56
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0
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0
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last; |
57
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} |
58
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} |
59
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60
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4
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8
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delete $orig{$this}; |
61
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4
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8
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delete $pats{$this}; |
62
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4
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277
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delete $trun{$this}; |
63
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} |
64
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# }}} |
65
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# set_truncate {{{ |
66
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sub set_truncate { |
67
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2
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2
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0
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10
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my $pfft = shift; |
68
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2
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4
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my $that = int shift; |
69
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2
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5
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my $this = $pf2t{$pfft}; |
70
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71
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2
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50
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6
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return delete $trun{$this} unless $that > 0; |
72
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73
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2
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17
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$trun{$this} = $that; |
74
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} |
75
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# }}} |
76
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# PRINT {{{ |
77
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sub PRINT { |
78
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3
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3
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24
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my $this = shift; |
79
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3
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7
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my @them = @_; |
80
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81
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# FIXME: this is totally unreadable code |
82
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83
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3
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8
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for my $it (@them) { |
84
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3
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6
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my @colors; |
85
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86
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# for each pattern, set an applicable icolor index for each character |
87
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# in @colors |
88
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3
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5
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for my $p ( @{$pats{$this}} ) { |
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3
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9
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89
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4
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64
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while( $it =~ m/($p->[0])/g ) { |
90
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52
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141
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my @character_list = ( $-[1] .. $+[1]-1 ); |
91
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92
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52
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50
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134
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if( $icolors[$p->[1]] eq "_hashed_" ) { |
93
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0
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0
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my $dyn = dynamic_colors($1); |
94
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95
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# This is evil to debug |
96
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# … data dump can help … |
97
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# |
98
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# use Data::Dump qw(dump); |
99
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# warn dump({ |
100
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# character_list => \@character_list, |
101
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# match => $1, |
102
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# icolors => \@icolors, |
103
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# dyn => $dyn, |
104
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# p => \$p, |
105
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# }); |
106
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107
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0
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0
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my $pos = 0; |
108
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0
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0
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$colors[$_] = $dyn->[$pos++] for @character_list; |
109
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} |
110
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111
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else { |
112
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52
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265
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$colors[$_] = $p->[1] for @character_list; |
113
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} |
114
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} |
115
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} |
116
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117
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# in reverse order, change the color for each character iff |
118
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# it's not already the same; reset before change (is the reset overkill??) |
119
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3
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6
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my $l = 0; |
120
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3
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30
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for my $i ( reverse 0 .. $#colors ) { |
121
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326
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100
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510
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if( (my $n = $colors[$i]) != $l ) { |
122
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102
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187
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substr $it, $i+1, 0, $RESET . "$icolors[$l]"; |
123
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102
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144
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$l = $n; |
124
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} |
125
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} |
126
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127
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# lastly, change the color of the first character if there is one |
128
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3
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100
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21
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substr $it, 0, 0, $icolors[$colors[0]] if $colors[0]; |
129
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} |
130
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131
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3
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100
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13
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if( my $trun = $trun{$this} ) { |
132
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# TODO This assumes all PRINT()s are *lines*, and they're clearly not. |
133
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134
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2
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3
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local $"; |
135
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2
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13
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my $line = "@them"; |
136
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2
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50
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13
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(substr $line, $trun) = "\n" if length $line > $trun+1; |
137
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2
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5
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print {$orig{$this}} $line; |
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2
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16
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138
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139
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2
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9
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return; |
140
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} |
141
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142
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1
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2
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print {$orig{$this}} @them; |
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1
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7
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143
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} |
144
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# }}} |
145
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# filtered_handle {{{ |
146
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sub filtered_handle { |
147
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5
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5
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0
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4747
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my ($fh, @patterns) = @_; |
148
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5
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50
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22
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croak "filtered_handle(globref, \@patterns)" unless ref($fh) eq "GLOB"; |
149
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150
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5
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13
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@icolors = (""); |
151
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5
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16
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$RESET = color("reset"); |
152
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153
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# dunno about others, but my term doesn't reset background right |
154
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# with '0m'; needs pure 'm' |
155
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5
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50
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120
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$RESET .= "\e[m" if $RESET eq "\e[0m"; |
156
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157
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5
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8
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my @pats; |
158
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5
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20
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while( (my ($pat,$color) = splice @patterns, 0, 2) ) { |
159
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8
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50
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20
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croak "\@patterns should contain an even number of items" unless defined $color; |
160
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161
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8
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50
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18
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if( $color eq "_hashed_" ) { |
162
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0
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0
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push @icolors, '_hashed_'; |
163
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0
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0
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push @pats, [ $pat, $#icolors ]; |
164
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0
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0
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next; |
165
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} |
166
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167
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8
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100
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22
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unless( ref($pat) eq "Regexp" ) { |
168
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3
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7
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$pat = eval {qr($pat)}; |
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3
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37
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169
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3
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50
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12
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croak "RE \"$_\" doesn't compile well: $@" unless $pat; |
170
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} |
171
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172
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# die unless all the elements of @uc are all caps exports of |
173
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# Term::ANSIColor |
174
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175
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8
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100
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21
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croak "color \"$color\" unknown" unless colorvalid($color); |
176
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7
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95
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$color = color($color); |
177
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178
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7
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127
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my ($l) = grep {$color eq $icolors[$_]} 0 .. $#icolors; |
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9
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22
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179
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180
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7
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100
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16
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unless($l) { |
181
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6
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12
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push @icolors, $color; |
182
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6
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9
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$l = $#icolors; |
183
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} |
184
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185
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7
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32
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push @pats, [ $pat => $l ]; |
186
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} |
187
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188
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# NOTE: This is called pfft because I'd like to get rid of it. |
189
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# it doesn't seem like I should need it and it irritates me. |
190
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4
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13
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my $pfft = bless gensym(); |
191
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4
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50
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54
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my $this = tie *{$pfft}, __PACKAGE__ or die $!; |
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4
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47
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192
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193
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4
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59
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$pf2t{$pfft} = $this; |
194
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4
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11
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$orig{$this} = $fh; |
195
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4
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8
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$pats{$this} = \@pats; |
196
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197
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4
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11
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$pfft; |
198
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} |
199
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# }}} |
200
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201
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# {{{ DYNAMIC_COLOR_MATCH_HACK: |
202
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DYNAMIC_COLOR_MATCH_HACK: { |
203
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my %dynamic_color_match_hash; |
204
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my @dynamic_color_list = (map {color($_)} ( |
205
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"green", "bold green", |
206
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"cyan", "bold cyan", |
207
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"magenta", "bold magenta", |
208
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"bold blue", |
209
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"yellow", "bold yellow", |
210
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)); |
211
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212
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sub dynamic_colors { |
213
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0
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0
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0
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my $match = shift; |
214
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0
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my $list = $dynamic_color_match_hash{$match}; |
215
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216
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0
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0
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return $list if $list; |
217
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218
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0
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my @color = map {$dynamic_color_list[rand @dynamic_color_list]} 1 .. length($match); |
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0
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219
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220
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0
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for my $color (@color) { |
221
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0
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my ($l) = grep {$color eq $icolors[$_]} 0 .. $#icolors; |
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0
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222
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223
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0
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0
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unless($l) { |
224
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0
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push @icolors, $color; |
225
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0
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$l = $#icolors; |
226
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} |
227
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228
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0
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$color = $l; |
229
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} |
230
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231
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0
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return $dynamic_color_match_hash{$match} = \@color; |
232
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} |
233
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} |
234
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235
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# }}} |
236
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237
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"true"; |
238
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239
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__END__ |