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package Sledge::Plugin::DebugScreen; |
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19538
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use strict; |
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3
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1
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use warnings; |
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4
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our $VERSION = '0.08'; |
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1
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use 5.008001; |
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6
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1
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1
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7002
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use Template; |
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23595
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1
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1
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1626
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use Devel::StackTrace; |
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3001
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1
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9
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1
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use IO::File; |
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10117
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1
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473
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{ |
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package Sledge::Exception::StackTrace; |
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sub print_context { |
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0
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0
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my $self = shift; |
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0
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0
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my($file, $linenum) = ($self->file, $self->line); |
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my $code; |
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if (-f $file) { |
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my $start = $linenum - 3; |
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my $end = $linenum + 3; |
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$start = $start < 1 ? 1 : $start; |
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if (my $fh = IO::File->new($file, 'r')) { |
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my $cur_line = 0; |
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while (my $line = <$fh>) { |
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++$cur_line; |
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last if $cur_line > $end; |
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next if $cur_line < $start; |
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my @tag = $cur_line == $linenum ? qw( ) : ('', ''); |
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$code .= sprintf( |
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'%s%5d: %s%s', |
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$tag[0], $cur_line, $self->_html_escape($line), $tag[1], |
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); |
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} |
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} |
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} |
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0
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0
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return $code; |
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} |
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sub _html_escape { |
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my ($self, $str) = @_; |
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0
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0
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$str =~ s/&/&/g; |
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0
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$str =~ s/</g; |
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0
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$str =~ s/>/>/g; |
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$str =~ s/"/"/g; |
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0
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return $str; |
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} |
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} |
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48
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our $TEMPLATE = q{ |
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50
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51
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52
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Error in [% title | html %] |
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111
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112
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113
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114
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[% title | html %] |
115
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116
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[% pages.current_url | html %] |
117
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118
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119
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[% desc | html %] |
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121
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122
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123
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StackTrace |
124
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141
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142
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143
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144
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145
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}; |
146
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147
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sub import { |
148
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1
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1
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10
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my $self = shift; |
149
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1
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1
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my $pkg = caller; |
150
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151
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1
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1
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8
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no strict 'refs'; |
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1
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2
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1
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433
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152
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153
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{ |
154
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1
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2
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my $super = $pkg->can('dispatch'); |
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1
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11
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155
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1
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3
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*{"$pkg\::dispatch"} = sub { |
156
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0
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0
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0
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my $self = shift; |
157
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local $SIG{__DIE__} = sub { |
158
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0
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0
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0
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$self->{__stacktrace} = [map {Sledge::Exception::StackTrace->new( |
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0
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0
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159
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file => $_->filename, line => $_->line, pkg => $_->package, |
160
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)} Devel::StackTrace->new->frames ]; |
161
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0
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0
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die @_; # rethrow |
162
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0
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0
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}; |
163
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0
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0
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$self->$super(@_); |
164
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1
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4
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}; |
165
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} |
166
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167
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1
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2
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*{"$pkg\::handle_exception"} = \&_handle_exception; |
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1
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12
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168
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} |
169
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170
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sub _handle_exception { |
171
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0
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0
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my ($self, $E) = @_; |
172
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173
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0
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0
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return if $self->finished; |
174
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175
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0
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0
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if ($self->debug_level) { |
176
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0
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warn $E; |
177
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178
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0
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0
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my $vars = { |
179
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title => ref $self || $self, |
180
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desc => "$E", |
181
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pages => $self, |
182
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}; |
183
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184
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0
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0
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0
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if (ref $E and $E->can('stacktrace')) { |
185
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0
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$vars->{stacktrace} = $E->stacktrace; |
186
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} else { |
187
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0
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$vars->{stacktrace} = $self->{__stacktrace}; |
188
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0
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shift @{$vars->{stacktrace}}; |
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0
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189
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} |
190
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191
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0
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my $tmpl = Template->new; |
192
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0
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my $output; |
193
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0
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$tmpl->process(\$TEMPLATE, $vars, \$output); |
194
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195
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0
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$self->r->content_type('text/html'); |
196
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0
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$self->set_content_length(length $output); |
197
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0
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$self->r->status($self->SERVER_ERROR); |
198
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0
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$self->send_http_header; |
199
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0
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$self->r->print($output); |
200
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0
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$self->finished(1); |
201
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} else { |
202
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0
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die $E; |
203
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} |
204
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} |
205
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206
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1; |
207
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__END__ |