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code |
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package CGI::Application::Plugin::DebugScreen; |
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15460
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use 5.006; |
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67
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use strict; |
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use warnings; |
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14399
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use HTML::Template; |
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48335
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1
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2056
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use Devel::StackTrace; |
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5288
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1
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1323
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use IO::File; |
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18412
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1
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1
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4095
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use UNIVERSAL::require; |
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3981
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1
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15
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our $VERSION = '1.00'; |
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our $A_CODE = '
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our $A_POD = '
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our $A_TAIL = '">'; |
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our $A_END = ''; |
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our $TEMPLATE = qq{ |
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Error in |
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90
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91
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95
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100
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StackTrace |
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129
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130
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}; |
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132
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sub import { |
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1
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1
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18
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my $self = shift; |
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1
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4
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my $caller = scalar caller; |
135
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136
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$caller->add_callback( 'init', sub{ |
137
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0
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0
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0
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my $self = shift; |
138
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139
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$SIG{__DIE__} = sub{ |
140
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0
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0
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push @{$self->{__stacktrace}},[Devel::StackTrace->new(ignore_package=>[qw/CGI::Application::Plugin::DebugScreen Carp CGI::Carp/])->frames]; |
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0
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0
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141
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0
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0
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die @_; # rethrow |
142
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0
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0
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}; |
143
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{ |
144
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1
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1
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450
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no strict 'refs'; |
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1
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3
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1
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3801
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0
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0
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145
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0
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0
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*{"$caller\::report"} = \&debug_report; |
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0
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0
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146
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147
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0
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0
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*{"$caller\::__debugscreen_error"} = sub{ |
148
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0
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0
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my $self = shift; |
149
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0
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0
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0
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0
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if ( |
150
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exists $INC{'CGI/Application/Plugin/ViewCode.pm'} |
151
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&& |
152
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! exists $INC{'CGI/Application/Dispatch.pm'} |
153
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) |
154
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{ |
155
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0
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0
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$self->{__viewcode}++; |
156
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} |
157
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0
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0
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$self->report(@_); |
158
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0
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0
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}; |
159
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} |
160
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1
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26
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}); |
161
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162
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$caller->add_callback( 'error', sub{ |
163
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0
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0
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0
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my $self = shift; |
164
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0
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0
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0
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0
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if ( $ENV{CGI_APP_DEBUG} && exists $INC{'CGI/Application/Plugin/ViewCode.pm'} ) { |
165
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0
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0
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$self->error_mode('__debugscreen_error'); |
166
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} |
167
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1
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21
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}); |
168
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169
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1
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50
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17
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if ( ! exists $INC{'CGI/Application/Plugin/ViewCode.pm'} ) { |
170
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1
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50
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14
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"CGI::Application::Plugin::ViewCode"->require |
171
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or delete $INC{'CGI/Application/Plugin/ViewCode.pm'}; |
172
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1
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50
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29
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unless ($@) {goto &CGI::Application::Plugin::ViewCode::import} |
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0
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173
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} |
174
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} |
175
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176
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sub debug_report{ |
177
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0
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0
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0
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my $self = shift; |
178
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0
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my $desc = '' . shift; #stringify |
179
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#useful in case of exception from CGI::Application::Plugin::TT |
180
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0
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my $url = $self->query->url(-path_info=>1,-query=>1); |
181
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182
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0
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0
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my $title = ref $self || $self; |
183
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184
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0
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$title = html_escape($title); |
185
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0
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my $title_a = $title; |
186
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187
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0
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0
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if ( $self->{__viewcode} ) { |
188
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0
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$title_a = $A_CODE . $title . $A_TAIL . $title . $A_END; |
189
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} |
190
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191
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0
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my $stacks = $self->{__stacktrace}[0]; |
192
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193
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0
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|
my @stacktraces; |
194
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0
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|
for my $stack ( @{$stacks} ) { |
|
0
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195
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0
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|
my %s; |
196
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0
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0
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$s{package} = exists $stack->{pkg} ? $stack->{pkg} : $stack->{package}; |
197
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0
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0
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$s{filename} = exists $stack->{file} ? $stack->{file} : $stack->{filename}; |
198
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199
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0
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$s{package} = html_escape($s{package}); |
200
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0
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|
$s{filename} = html_escape($s{filename}); |
201
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0
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|
$s{line} = html_escape($stack->{line}); |
202
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0
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|
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|
$s{code_preview} = print_context($s{filename},$s{line},$s{package},$self->{__viewcode}); |
203
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|
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204
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0
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0
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0
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|
|
if ( $self->{__viewcode} && $s{package} ne 'main' ) { |
205
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0
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|
$s{line} = $A_CODE . $s{package} . '#'.$s{line} . $A_TAIL . $s{line} . $A_END; |
206
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0
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|
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|
|
$s{pod} = $A_POD . $s{package} . $A_TAIL . 'pod' . $A_END; |
207
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0
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|
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|
$s{code} = $A_CODE . $s{package} . $A_TAIL . 'code' . $A_END; |
208
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0
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$s{filename} = $A_CODE . $s{package} . $A_TAIL . $s{filename} . $A_END; |
209
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0
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|
$s{package} = $A_CODE . $s{package} . $A_TAIL . $s{package} . $A_END; |
210
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211
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0
|
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|
|
$s{view} = $self->{__viewcode}; |
212
|
|
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|
|
} |
213
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0
|
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|
|
push @stacktraces, \%s; |
214
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|
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} |
215
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|
216
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0
|
|
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|
|
my $t = HTML::Template->new( |
217
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|
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scalarref => \$TEMPLATE, |
218
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|
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die_on_bad_params => 0, |
219
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); |
220
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0
|
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|
|
$t->param( |
221
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|
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title => $title, |
222
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|
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|
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|
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title_a => $title_a, |
223
|
|
|
|
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|
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view => $self->{__viewcode}, |
224
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|
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|
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|
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url => html_escape($url), |
225
|
|
|
|
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|
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desc => html_escape($desc), |
226
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|
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|
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|
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stacktrace => \@stacktraces, |
227
|
|
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|
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|
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); |
228
|
|
|
|
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229
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0
|
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|
|
$self->header_props( -type => 'text/html' ); |
230
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0
|
|
|
|
|
|
return $t->output; |
231
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|
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} |
232
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233
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|
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|
|
sub print_context { |
234
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0
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|
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0
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0
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|
my($file, $linenum, $package, $view) = @_; |
235
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0
|
|
|
|
|
|
my $code; |
236
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0
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0
|
|
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|
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if (-f $file) { |
237
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0
|
|
|
|
|
|
my $start = $linenum - 3; |
238
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0
|
|
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|
my $end = $linenum + 3; |
239
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0
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0
|
|
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|
|
$start = $start < 1 ? 1 : $start; |
240
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0
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0
|
|
|
|
|
if (my $fh = IO::File->new($file, 'r')) { |
241
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0
|
|
|
|
|
|
my $cur_line = 0; |
242
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0
|
|
|
|
|
|
while (my $line = <$fh>) { |
243
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0
|
|
|
|
|
|
++$cur_line; |
244
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0
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0
|
|
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|
|
last if $cur_line > $end; |
245
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0
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0
|
|
|
|
|
next if $cur_line < $start; |
246
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0
|
0
|
|
|
|
|
my @tag = $cur_line == $linenum ? qw( ) : ("",""); |
247
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0
|
0
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0
|
|
|
|
if ( $view && $package ne 'main' && $cur_line == $linenum ) { |
|
|
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0
|
|
|
|
|
248
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0
|
|
|
|
|
|
my $t_line = $A_CODE.$package.'#'.$linenum.$A_TAIL; |
249
|
0
|
|
|
|
|
|
$code .= sprintf( |
250
|
|
|
|
|
|
|
'%s%s%5d: %s%s%s', |
251
|
|
|
|
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|
|
$tag[0], $t_line, $cur_line, html_escape($line), $A_END, $tag[1], |
252
|
|
|
|
|
|
|
); |
253
|
|
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|
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|
|
} |
254
|
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|
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|
|
else { |
255
|
0
|
|
|
|
|
|
$code .= sprintf( |
256
|
|
|
|
|
|
|
'%s%5d: %s%s', |
257
|
|
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|
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|
|
$tag[0], $cur_line, html_escape($line), $tag[1], |
258
|
|
|
|
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|
|
); |
259
|
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|
|
} |
260
|
|
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|
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|
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} |
261
|
|
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|
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|
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} |
262
|
|
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|
|
|
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} |
263
|
0
|
|
|
|
|
|
return $code; |
264
|
|
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|
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|
|
} |
265
|
|
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|
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266
|
|
|
|
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|
|
sub html_escape { |
267
|
0
|
|
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0
|
0
|
|
my $str = shift; |
268
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0
|
|
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|
|
|
$str =~ s/&/&/g; |
269
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0
|
|
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|
|
$str =~ s/</g; |
270
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0
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|
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|
|
$str =~ s/>/>/g; |
271
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0
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|
$str =~ s/"/"/g; |
272
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0
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|
|
return $str; |
273
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|
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} |
274
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275
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1; |
276
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277
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|
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|
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|
|
=head1 NAME |
278
|
|
|
|
|
|
|
|
279
|
|
|
|
|
|
|
CGI::Application::Plugin::DebugScreen - add Debug support to CGI::Application. |
280
|
|
|
|
|
|
|
|
281
|
|
|
|
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|
|
=head1 VERSION |
282
|
|
|
|
|
|
|
|
283
|
|
|
|
|
|
|
This documentation refers to CGI::Application::Plugin::DebugScreen version 0.06 |
284
|
|
|
|
|
|
|
|
285
|
|
|
|
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|
|
=head1 SYNOPSIS |
286
|
|
|
|
|
|
|
|
287
|
|
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|
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|
|
use CGI::Application::Plugin::DebugScreen; |
288
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|
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|
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289
|
|
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|
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|
|
Only it. |
290
|
|
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|
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|
|
If "Internal Server Error" was generated by "run_mode".... |
291
|
|
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|
|
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292
|
|
|
|
|
|
|
=head1 DESCRIPTION |
293
|
|
|
|
|
|
|
|
294
|
|
|
|
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|
|
This plug-in add Debug support to CGI::Application. |
295
|
|
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|
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|
|
This plug-in like Catalyst debug mode. |
296
|
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DebugScreen is done when B<$ENV{CGI_APP_DEBUG}> is set, |
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and DebugScreen is not done when not setting it. |
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When your code is released, this plug-in need not be removed. |
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When 'die' is generated by 'run_mode', |
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this plug-in outputs the stack trace by error_mode(). |
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As for this plug-in, error_mode() is overwrited in error callback. |
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The error cannot be caught excluding run_mode. |
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306
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This uses CGI::Application::Plugin::ViewCode |
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if a state that CGI::Application::Plugin::ViewCode can be used or used. |
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But CGI::Application::Dispatch is used, |
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this not uses CGI::Application::Plugin::ViewCode. |
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When CGI::Application::Plugin::ViewCode can be used, |
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Title, Package, File, code and line are links to CGI::Application::Plugin::ViewCode's view_code mode. |
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line jumps to the specified line. |
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And pod are links to CGI::Application::Plugin::ViewCode's view_pod mode. |
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The code of the displayed is links to CGI::Application::Plugin::ViewCode's view_code mode. |
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=head1 DEPENDENCIES |
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334
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335
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=head1 BUGS AND LIMITATIONS |
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337
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There are no known bugs in this module. |
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Please report problems to Atsushi Kobayashi (Enekokak@cpan.orgE) |
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Patches are welcome. |
340
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341
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=head1 SEE ALSO |
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=head1 Thanks To |
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353
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MATSUNO Tokuhiro (MATSUNO) |
354
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355
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Koichi Taniguchi (TANIGUCHI) |
356
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357
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Masahiro Nagano (KAZEBURO) |
358
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359
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Tomoyuki Misonou |
360
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361
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=head1 AUTHOR |
362
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363
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Atsushi Kobayashi, Enekokak@cpan.orgE |
364
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365
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=head1 COPYRIGHT AND LICENSE |
366
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367
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Copyright (C) 2006 by Atsushi Kobayashi (Enekokak@cpan.orgE). All rights reserved. |
368
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369
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This library is free software; you can redistribute it and/or modify it |
370
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under the same terms as Perl itself. See L. |
371
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372
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=cut |