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package Data::Difflet; |
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37467
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use strict; |
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use warnings FATAL => 'recursion'; |
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use 5.008008; |
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our $VERSION = '0.11'; |
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use Term::ANSIColor; |
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use Data::Dumper; |
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24863
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our $LEVEL; |
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our $BUFFER; |
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sub new { |
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my $class = shift; |
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my %color = ( |
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inserted_color => 'green', |
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deleted_color => 'red', |
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updated_color => 'blue', |
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comment_color => 'cyan', |
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); |
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if ($ENV{DD_COLOR}) { |
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# TYPE=FG;BG:TYPE=FG;BG:... |
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for my $type_color (split /:/, $ENV{DD_COLOR}) { |
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my($type, $color) = split /=/, $type_color, 2; |
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my($fg, $bg) = split /;/, $color, 2; |
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$type .= "_color"; |
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$color{$type} = ($fg ? "$fg " : "").($bg ? "on_$bg" : ""); |
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} |
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} |
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bless { |
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%color, |
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indent => 2, |
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}, $class; |
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} |
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0
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sub _f($) { die "Do not call directly"; } |
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sub ddf { |
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my $self = shift; |
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@_==1 or die; |
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local $Data::Dumper::Terse = 1; |
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local $Data::Dumper::Indent = 0; |
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Dumper(@_); |
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} |
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sub compare { |
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my $self = shift; |
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local $LEVEL = 0; |
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local $BUFFER = ''; |
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no warnings 'redefine'; |
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2863
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local *_f = sub($) { $self->ddf(@_) }; |
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local $Term::ANSIColor::EACHLINE = "\n"; |
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$self->_compare(@_); |
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255
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return $BUFFER; |
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} |
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# TODO: recursion detection |
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sub _compare { |
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my ($self, $a, $b) = @_; |
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100
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if (ref $a eq 'HASH') { # dump hash |
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if (ref $b eq 'HASH') { |
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$self->_print("{\n"); |
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{ |
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local $LEVEL = $LEVEL + 1; |
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3
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for my $key (sort keys %$a) { |
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if (exists $b->{$key}) { |
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if ($self->ddf($b->{$key}) eq $self->ddf($a->{$key})) { |
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$self->_print("%s => %s,\n", $self->ddf($key), $self->ddf($a->{$key})); |
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} else { |
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if (ref($a->{$key}) or ref($b->{$key})) { |
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$self->_print("%s => ", _f($key)); |
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local $LEVEL = $LEVEL + 1; |
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$self->_compare($a->{$key}, $b->{$key}); |
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$self->_print(",\n"); |
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} else { |
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$self->_updated("%s => %s,", _f($key), _f($a->{$key})); |
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$self->_comment(" # != %s,\n", _f($b->{$key})); |
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} |
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} |
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} else { |
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$self->_inserted("%s => %s,\n", $self->ddf($key), $self->ddf($a->{$key})); |
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} |
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} |
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for my $key (sort keys %$b) { |
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next if exists $a->{$key}; |
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$self->_deleted("%s => %s,\n", $self->ddf($key), $self->ddf($b->{$key})); |
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} |
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} |
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$self->_print("}\n"); |
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return; |
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} else { |
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$self->_inserted("%s\n", $self->ddf($a)); |
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$self->_deleted("%s\n", $self->ddf($b)); |
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} |
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} elsif (ref $a eq 'ARRAY') { |
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if (ref $b eq 'ARRAY') { |
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$self->_print("[\n"); |
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{ |
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local $LEVEL = $LEVEL + 1; |
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100
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my $alen = 0+@$a; |
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my $blen = 0+@$b; |
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my $i = 0; |
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while (1) { |
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if ($i<$alen && $i<$blen) { # both |
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if (_f($a->[$i]) eq _f($b->[$i])) { |
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$self->_print("%s,\n", _f($a->[$i])); |
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} else { |
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if (ref($a->[$i]) or ref($b->[$i])) { |
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2
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local $LEVEL = $LEVEL + 1; |
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2
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$self->_compare($a->[$i], $b->[$i]); |
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} else { |
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2
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$self->_updated("%s,", $a->[$i]); |
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2
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$self->_comment(" # != %s\n", $b->[$i]); |
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} |
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} |
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} elsif ($i<$alen) { |
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2
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$self->_inserted("%s,\n", _f $a->[$i]); |
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} elsif ($i<$blen) { |
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0
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0
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$self->_deleted("%s,\n", _f $b->[$i]); |
120
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} else { |
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7
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last; |
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} |
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253
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++$i; |
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} |
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} |
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$self->_print("]\n"); |
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} else { |
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1
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2
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$self->_inserted("%s\n", $self->ddf($a)); |
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1
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$self->_deleted("%s\n", $self->ddf($b)); |
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} |
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} else { |
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2
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100
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if ($self->ddf($a) eq $self->ddf($b)) { |
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1
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21
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$self->_print("%s\n", $self->ddf($a)); |
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} else { |
135
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1
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$self->_inserted("%s\n", $self->ddf($a)); |
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1
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46
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$self->_deleted("%s\n", $self->ddf($b)); |
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} |
138
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} |
139
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} |
140
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141
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sub _print { |
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22
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22
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204
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my ($self, @args) = @_; |
143
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22
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62
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$BUFFER .= ' 'x($LEVEL*$self->{indent}); |
144
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55
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$BUFFER .= sprintf colored(['reset'], shift @args), @args; |
145
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} |
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147
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sub _inserted { |
148
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8
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8
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247
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my ($self, @args) = @_; |
149
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8
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24
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$BUFFER .= ' 'x($LEVEL*$self->{indent}); |
150
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8
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16
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chomp(my $fmt = shift @args); |
151
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8
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24
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$BUFFER .= sprintf colored([$self->{"inserted_color"}], $fmt), @args; |
152
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8
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256
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$self->_comment(" # <<<\n"); |
153
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} |
154
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155
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sub _updated { |
156
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104
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my ($self, @args) = @_; |
157
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5
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13
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$BUFFER .= ' 'x($LEVEL*$self->{indent}); |
158
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5
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20
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$BUFFER .= sprintf colored([$self->{"updated_color"}], shift @args), @args; |
159
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} |
160
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161
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sub _deleted { |
162
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6
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6
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170
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my ($self, @args) = @_; |
163
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6
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15
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$BUFFER .= ' 'x($LEVEL*$self->{indent}); |
164
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6
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10
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chomp(my $fmt = shift @args); |
165
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6
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17
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$BUFFER .= sprintf colored([$self->{"deleted_color"}], $fmt), @args; |
166
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6
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220
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$self->_comment(" # >>>\n"); |
167
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} |
168
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169
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sub _comment { |
170
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109
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my ($self, @args) = @_; |
171
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19
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154
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$BUFFER .= ' 'x($LEVEL*$self->{indent}); |
172
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19
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53
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$BUFFER .= sprintf colored([$self->{"comment_color"}], shift @args), @args; |
173
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} |
174
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175
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1; |
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__END__ |