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package Web::App::Config; |
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# $Id: Config.pm,v 1.31 2009/06/07 20:57:49 apla Exp $ |
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use Class::Easy; |
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use Storable qw(retrieve nstore); |
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use XML::LibXML; |
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use Web::App::Config::Screen; |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
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=pod |
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=head1 NAME |
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Web::App::Config - parsing Web::App configuration |
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=head1 DESCRIPTION |
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Web::App |
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=cut |
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sub path_to_val { |
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my ($data, $path) = @_; |
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my @path = split '/', $path; |
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foreach (@path) { |
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$data = $data->[$_], next |
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if ref $data eq 'ARRAY'; |
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$data = $data->{$_}; |
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} |
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return $data; |
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} |
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sub assign_path { |
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my ($data, $path, $value) = @_; |
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my @path = split '/', $path; |
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my $last = pop @path; |
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foreach (@path) { |
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unless (exists $data->{$_}) { |
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# debug "$path => $_"; |
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$data->{$_} = {}; |
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} |
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$data = $data->{$_}; |
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} |
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$data->{$last} = $value; |
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} |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
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sub last_modified_since { |
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my $self = shift; |
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my $last_modified = shift; |
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my $config_file = $self->file; |
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my $config_dir = ($config_file =~ /^(.*\/)[^\/]+$/)[0]; |
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my $config_files = [$config_file, map {"$config_dir$_"} @{$self->int->{'files'}}]; |
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debug "compare timestamps of the config file '$config_file' and module Web::App::Config"; |
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my $configuration_package_file = $INC {'Web/App/Config.pm'}; |
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my $package_change = (stat ($configuration_package_file))[9]; |
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my $config_change = 0; |
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foreach $config_file (@$config_files) { |
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my $mtime = (stat ($config_file))[9]; |
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$config_change = $mtime |
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if $mtime > $config_change; |
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} |
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my $outdated = 0; |
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# workaround for configuration init |
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if (not defined $last_modified or $last_modified == 0) { |
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debug "initial configuration"; |
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$last_modified = $config_change; |
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} |
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if ($config_change > $last_modified) { |
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debug "config changed since last modified"; |
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# debug "config (" . scalar localtime ($config_change) . ") changed since last modified (".scalar localtime ($last_modified).")"; |
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$last_modified = $config_change; |
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$outdated = $last_modified; |
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} |
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if ($package_change > $last_modified) { |
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debug "module are newer than configuration"; |
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# debug "module (" . scalar localtime ($package_change) . ") are newer than configuration (".scalar localtime ($last_modified).")"; |
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$last_modified = $package_change; |
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$outdated = $last_modified; |
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} |
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return $outdated; |
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} |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
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has 'app', is => 'ro'; |
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has 'file', is => 'ro'; |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
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sub int { |
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return shift->{'internals'}; |
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} |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
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sub screens { |
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return shift->{'internals'}->{'screens'}; |
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} |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
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sub modules { |
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return shift->{'internals'}->{'modules'}; |
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} |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
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sub presenters { |
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return shift->{'internals'}->{'presenters'}; |
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} |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
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sub get { |
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my $class = shift; |
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my $app = shift; |
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my $config_file = shift; |
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129
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# first we need to check existing config in web::app |
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# then we check |
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my $bin_config_file = $config_file . '.binary'; |
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my $self = { |
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'file' => $config_file, |
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'app' => $app, |
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'mtime' => 0, |
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'internals' => { |
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'screens' => {}, |
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'modules' => {}, |
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'presenters' => {}, |
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'files' => {}, |
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} |
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}; |
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146
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my $mtime_config_binary = 0; |
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my $loaded = 0; |
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149
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if (-f $bin_config_file) { |
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$self->{'mtime'} = $mtime_config_binary = (stat ($bin_config_file))[9]; |
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152
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debug "loading configuration binary"; |
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eval { |
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$self->{'internals'} = retrieve ($bin_config_file); |
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$loaded = 1; |
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}; |
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158
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}; |
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160
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unless (-f $config_file) { |
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critical "Can't read config from file $config_file"; |
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} |
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164
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bless $self, $class; |
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166
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if (not $loaded or $self->last_modified_since ($mtime_config_binary)) { |
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debug 'parsing configuration'; |
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169
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$self->parse_file ($app); |
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171
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nstore ($self->{'internals'}, $bin_config_file) |
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or debug ("cannot write binary config to '$bin_config_file'"); |
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174
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} |
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176
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# reload mtime after store or retrieve |
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$self->{'mtime'} = (stat ($bin_config_file))[9]; |
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179
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return $self; |
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} |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
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sub init_modules { |
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my $self = shift; |
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185
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my $app = $self->app; |
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187
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my $dump_separators = ',;:\/ '; |
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189
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foreach my $module (keys %{$self->modules}) { |
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next unless $module; |
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192
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my $t = timer ("$module require"); |
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194
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debug "$@" |
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unless try_to_use ($module); |
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197
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my $params = $self->modules->{$module}; |
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199
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my $dump = 'all'; |
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201
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if (ref $params eq 'HASH') { |
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203
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if ($module->can ('init') and $params->{type} ne 'use') { |
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$t->lap ("$module init"); |
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$module->init ($params); |
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} else { |
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# debug "module $module doesn't have 'init' method"; |
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} |
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} |
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211
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$t->end; |
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} |
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214
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} |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
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sub screen { |
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my $self = shift; |
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my $screen_name = shift; |
219
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220
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return $self->screens->{$screen_name}; |
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} |
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# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
223
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sub parse_file { |
224
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my $self = shift; |
225
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my $app = shift; |
226
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227
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my $screen_config_path = $self->{'file'}; |
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229
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debug 'loading screens configuration'; |
230
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231
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my $parser = new XML::LibXML; |
232
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my $xp = $parser->parse_file ($screen_config_path); |
233
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234
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my @files = $xp->findnodes ('/config/xi:include'); |
235
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236
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$self->int->{'files'} = [map {$_->getAttribute ('href')} @files]; |
237
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$parser->processXIncludes ($xp); |
238
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239
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my @plugin_list = $xp->findnodes ('/config/*[local-name() = "extension" or local-name() = "presenter" or local-name() = "use" or local-name() = "request" or local-name() = "session"]'); |
240
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241
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my $modules = $self->int->{'modules'} = {}; |
242
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243
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foreach my $plugin (@plugin_list) { |
244
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my @arguments = $plugin->findnodes ('@*'); |
245
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246
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my $module_params = {'type' => ''}; |
247
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248
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foreach (@arguments) { |
249
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#$module = $module->string_value; |
250
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#debug "found '" . $plugin->nodeName . "'in module: '$module'"; |
251
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252
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$module_params->{$_->localname} = $_->nodeValue; |
253
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} |
254
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255
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my $defined_type = $module_params->{'type'}; |
256
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my $computed_type = $plugin->nodeName; |
257
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$computed_type .= ':' . $defined_type |
258
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if defined $defined_type and $defined_type ne ''; |
259
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260
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$module_params->{'type'} = $computed_type; |
261
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262
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my $module_name = delete $module_params->{'pack'}; |
263
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264
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# after parsing, store module config |
265
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$modules->{$module_name} = $module_params; |
266
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267
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|
debug "found $module_name in ", $plugin->localname; |
268
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|
} |
269
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270
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my $screens_node = $xp->findnodes ('/config/screens')->get_node(1); |
271
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272
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my $screens = $self->int->{'screens'} = {}; |
273
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274
|
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|
$screens->{'#base-uri'} = $screens_node->findvalue ('base-url/text()'); |
275
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|
$screens->{'#separators'} = $screens_node->findvalue ('request-queue/@separators'); |
276
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277
|
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|
|
$screens->{'#user-name-separator'} = |
278
|
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|
|
$screens_node->findvalue ('request-queue/user-name/@separator-symbol'); |
279
|
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280
|
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|
|
$screens->{'#user-name-position'} = |
281
|
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|
|
$screens_node->findvalue ('request-queue/user-name/@name-position'); |
282
|
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283
|
|
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|
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|
|
my @screen_nodes_list = $screens_node->findnodes ('screen'); |
284
|
|
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|
|
# find all paragraphs |
285
|
|
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|
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286
|
|
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|
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|
|
#my $presenters_dir = $self->{'home'} . '/share/presentation/' . |
287
|
|
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|
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|
|
# $self->{'template-set'} . '/'; |
288
|
|
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289
|
|
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|
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|
|
#debug 'presenters in \'' . $presenters_dir . '\''; |
290
|
|
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|
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291
|
|
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|
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|
|
foreach my $screen (@screen_nodes_list) { |
292
|
|
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|
|
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293
|
|
|
|
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|
|
my $id = $screen->getAttribute ('id'); |
294
|
|
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|
next |
295
|
|
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|
|
|
|
unless defined $id; |
296
|
|
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|
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297
|
|
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|
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|
|
my $screen_object = Web::App::Config::Screen->create ($id); |
298
|
|
|
|
|
|
|
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299
|
|
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|
|
|
|
$screen_object->{auth} = $screen->getAttribute ('auth'); |
300
|
|
|
|
|
|
|
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301
|
|
|
|
|
|
|
if ($id ne '') { |
302
|
|
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|
|
|
|
assign_path ($screens, "$id/?", $screen_object); |
303
|
|
|
|
|
|
|
$screens->{$id}->{'?'} = $screen_object |
304
|
|
|
|
|
|
|
unless defined $screens->{$id}; |
305
|
|
|
|
|
|
|
} else { |
306
|
|
|
|
|
|
|
assign_path ($screens, "?", $screen_object); |
307
|
|
|
|
|
|
|
} |
308
|
|
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|
|
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|
|
309
|
|
|
|
|
|
|
my $presenter_attrs = (); |
310
|
|
|
|
|
|
|
foreach my $presenter_attr (($screen->findnodes ('presentation'))[0]->attributes) { |
311
|
|
|
|
|
|
|
$presenter_attrs->{$presenter_attr->localName} = |
312
|
|
|
|
|
|
|
$presenter_attr->value; |
313
|
|
|
|
|
|
|
} |
314
|
|
|
|
|
|
|
|
315
|
|
|
|
|
|
|
die "Can't locate presenter type in screen '$id', ", $screen->toString (1) |
316
|
|
|
|
|
|
|
unless $presenter_attrs->{type}; |
317
|
|
|
|
|
|
|
|
318
|
|
|
|
|
|
|
my $regexp = $screen->findvalue ('@regexp'); |
319
|
|
|
|
|
|
|
$screen_object->{regexp} = $regexp |
320
|
|
|
|
|
|
|
if $regexp; |
321
|
|
|
|
|
|
|
|
322
|
|
|
|
|
|
|
$screen_object->presentation ($presenter_attrs); |
323
|
|
|
|
|
|
|
|
324
|
|
|
|
|
|
|
my $req_max_size = $screen->findvalue ('@request-max-size'); |
325
|
|
|
|
|
|
|
$screen_object->request->{'max-size'} = $req_max_size |
326
|
|
|
|
|
|
|
if defined $req_max_size and $req_max_size =~ /\d+/; |
327
|
|
|
|
|
|
|
|
328
|
|
|
|
|
|
|
foreach my $context ('call', 'init/call', 'process/call') { |
329
|
|
|
|
|
|
|
my @call_nodes = $screen->findnodes ($context); |
330
|
|
|
|
|
|
|
|
331
|
|
|
|
|
|
|
my $type = ($context =~ /^(?:(init|process)\/)?call$/)[0]; |
332
|
|
|
|
|
|
|
my $call = 'add_call'; |
333
|
|
|
|
|
|
|
$call = "add_${type}_call" |
334
|
|
|
|
|
|
|
if defined $type; |
335
|
|
|
|
|
|
|
|
336
|
|
|
|
|
|
|
foreach my $call_node (@call_nodes) { |
337
|
|
|
|
|
|
|
my @param_attrs = $call_node->findnodes ('@*'); |
338
|
|
|
|
|
|
|
|
339
|
|
|
|
|
|
|
my $params = {}; |
340
|
|
|
|
|
|
|
|
341
|
|
|
|
|
|
|
foreach (@param_attrs) { |
342
|
|
|
|
|
|
|
|
343
|
|
|
|
|
|
|
my $param_name = $_->localname; |
344
|
|
|
|
|
|
|
my $param_value = $_->nodeValue; |
345
|
|
|
|
|
|
|
|
346
|
|
|
|
|
|
|
$params->{$param_name} = $param_value; |
347
|
|
|
|
|
|
|
} |
348
|
|
|
|
|
|
|
|
349
|
|
|
|
|
|
|
if (exists $params->{'sub'}) { |
350
|
|
|
|
|
|
|
|
351
|
|
|
|
|
|
|
my $sub = $params->{'sub'}; |
352
|
|
|
|
|
|
|
$screen_object->$call ($params); |
353
|
|
|
|
|
|
|
# debug "added $call to $sub"; |
354
|
|
|
|
|
|
|
my $module = ($sub =~ /(.*)(?:->|::)/)[0]; |
355
|
|
|
|
|
|
|
|
356
|
|
|
|
|
|
|
if ($module =~ /^\$([^:]+)/ and $app->can ($1)) { |
357
|
|
|
|
|
|
|
# debug 'this is a call for web app internals'; |
358
|
|
|
|
|
|
|
} else { |
359
|
|
|
|
|
|
|
$modules->{$module} = {type => 'use'}; |
360
|
|
|
|
|
|
|
} |
361
|
|
|
|
|
|
|
|
362
|
|
|
|
|
|
|
# try_to_use ($module); |
363
|
|
|
|
|
|
|
} |
364
|
|
|
|
|
|
|
} |
365
|
|
|
|
|
|
|
} |
366
|
|
|
|
|
|
|
|
367
|
|
|
|
|
|
|
$screen_object->{'params'} = []; |
368
|
|
|
|
|
|
|
|
369
|
|
|
|
|
|
|
my @param_nodes = $screen->findnodes ('param'); |
370
|
|
|
|
|
|
|
|
371
|
|
|
|
|
|
|
foreach my $param (@param_nodes) { |
372
|
|
|
|
|
|
|
my $field_params = { |
373
|
|
|
|
|
|
|
'name' => undef, |
374
|
|
|
|
|
|
|
'required' => undef, |
375
|
|
|
|
|
|
|
'type' => undef, # regexp:... or email, as example. available types in request.pm |
376
|
|
|
|
|
|
|
'multi' => undef, # multivalued parameter |
377
|
|
|
|
|
|
|
'filter' => undef, # trim-space, as example. available types in request.pm |
378
|
|
|
|
|
|
|
'default' => undef, # default values for this object |
379
|
|
|
|
|
|
|
}; |
380
|
|
|
|
|
|
|
push @{$screen_object->{'params'}}, $field_params; |
381
|
|
|
|
|
|
|
|
382
|
|
|
|
|
|
|
foreach my $var (keys %$field_params) { |
383
|
|
|
|
|
|
|
$field_params->{$var} = $param->getAttribute ($var) |
384
|
|
|
|
|
|
|
if $param->hasAttribute ($var); |
385
|
|
|
|
|
|
|
} |
386
|
|
|
|
|
|
|
|
387
|
|
|
|
|
|
|
if ($field_params->{name}) { |
388
|
|
|
|
|
|
|
$screen_object->{'params_hash'}->{$field_params->{name}} = $field_params; |
389
|
|
|
|
|
|
|
} |
390
|
|
|
|
|
|
|
|
391
|
|
|
|
|
|
|
$field_params->{'default'} = [$field_params->{'default'}] |
392
|
|
|
|
|
|
|
if defined $field_params->{'default'}; |
393
|
|
|
|
|
|
|
$field_params->{'default'} = [] |
394
|
|
|
|
|
|
|
if $param->findvalue ('count(default)') > 0; |
395
|
|
|
|
|
|
|
|
396
|
|
|
|
|
|
|
foreach my $defaults ($param->findnodes ('default')) { |
397
|
|
|
|
|
|
|
push @{$field_params->{'default'}}, $defaults->textContent; |
398
|
|
|
|
|
|
|
} |
399
|
|
|
|
|
|
|
} |
400
|
|
|
|
|
|
|
} |
401
|
|
|
|
|
|
|
|
402
|
|
|
|
|
|
|
# use Data::Dumper; |
403
|
|
|
|
|
|
|
# debug Dumper $self; |
404
|
|
|
|
|
|
|
|
405
|
|
|
|
|
|
|
return; |
406
|
|
|
|
|
|
|
} |
407
|
|
|
|
|
|
|
# -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- |
408
|
|
|
|
|
|
|
|
409
|
|
|
|
|
|
|
=pod |
410
|
|
|
|
|
|
|
|
411
|
|
|
|
|
|
|
sub path_from_request |
412
|
|
|
|
|
|
|
|
413
|
|
|
|
|
|
|
this procedure return screen object and path info. |
414
|
|
|
|
|
|
|
|
415
|
|
|
|
|
|
|
example: |
416
|
|
|
|
|
|
|
|
417
|
|
|
|
|
|
|
request is: http://some.com/web-app/admin/article/12345 |
418
|
|
|
|
|
|
|
|
419
|
|
|
|
|
|
|
configuration is: |
420
|
|
|
|
|
|
|
|
421
|
|
|
|
|
|
|
|
422
|
|
|
|
|
|
|
... |
423
|
|
|
|
|
|
|
|
424
|
|
|
|
|
|
|
... |
425
|
|
|
|
|
|
|
/web-app |
426
|
|
|
|
|
|
|
... |
427
|
|
|
|
|
|
|
|
428
|
|
|
|
|
|
|
|
429
|
|
|
|
|
|
|
|
430
|
|
|
|
|
|
|
|
431
|
|
|
|
|
|
|
|
432
|
|
|
|
|
|
|
|
433
|
|
|
|
|
|
|
|
434
|
|
|
|
|
|
|
... |
435
|
|
|
|
|
|
|
|
436
|
|
|
|
|
|
|
|
437
|
|
|
|
|
|
|
|
438
|
|
|
|
|
|
|
|
439
|
|
|
|
|
|
|
sub return screen object for screen with |
440
|
|
|
|
|
|
|
id = 'admin/article' and path info = '12345' |
441
|
|
|
|
|
|
|
|
442
|
|
|
|
|
|
|
=cut |
443
|
|
|
|
|
|
|
|
444
|
|
|
|
|
|
|
sub screen_from_request { |
445
|
|
|
|
|
|
|
my $self = shift; |
446
|
|
|
|
|
|
|
my $path = shift; |
447
|
|
|
|
|
|
|
|
448
|
|
|
|
|
|
|
my $screens = $self->screens; |
449
|
|
|
|
|
|
|
|
450
|
|
|
|
|
|
|
my $separators = $screens->{'#separators'}; |
451
|
|
|
|
|
|
|
|
452
|
|
|
|
|
|
|
$separators =~ s/([\/\[\]\(\)])/\\$1/g; |
453
|
|
|
|
|
|
|
|
454
|
|
|
|
|
|
|
my $screen = $screens; |
455
|
|
|
|
|
|
|
|
456
|
|
|
|
|
|
|
my $matches = []; |
457
|
|
|
|
|
|
|
|
458
|
|
|
|
|
|
|
while (1) { |
459
|
|
|
|
|
|
|
my ($path_element, $tail) = split /[$separators]/, $path, 2; |
460
|
|
|
|
|
|
|
|
461
|
|
|
|
|
|
|
#debug "path element: $path_element, tail: $tail"; |
462
|
|
|
|
|
|
|
|
463
|
|
|
|
|
|
|
return ($screen->{'?'}, $path, $matches) |
464
|
|
|
|
|
|
|
unless defined $path_element; |
465
|
|
|
|
|
|
|
|
466
|
|
|
|
|
|
|
if (defined $screen->{$path_element} and $screen->{$path_element}->{'?'}) { |
467
|
|
|
|
|
|
|
$screen = $screen->{$path_element}; |
468
|
|
|
|
|
|
|
$path = $tail; |
469
|
|
|
|
|
|
|
} else { |
470
|
|
|
|
|
|
|
# try to find screen by regexp |
471
|
|
|
|
|
|
|
|
472
|
|
|
|
|
|
|
my $matched = 0; |
473
|
|
|
|
|
|
|
|
474
|
|
|
|
|
|
|
my @children_screen = grep {!/[\/\#\?]/} keys %$screen; |
475
|
|
|
|
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476
|
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# use Data::Dumper; |
477
|
|
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|
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# debug Dumper \@children_screen; |
478
|
|
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|
|
|
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|
479
|
|
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|
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|
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foreach my $match (@children_screen) { |
480
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|
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my $is_regexp = $screen->{$match}->{'?'}->{regexp}; |
481
|
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|
482
|
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next unless $is_regexp; |
483
|
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484
|
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if ($path_element =~ /$match/i and $screen->{$match}->{'?'}) { |
485
|
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$screen = $screen->{$match}; |
486
|
|
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|
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$path = $tail; |
487
|
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push @$matches, $1 |
488
|
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if defined $1; |
489
|
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$matched = 1; |
490
|
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} |
491
|
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} |
492
|
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493
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return ($screen->{'?'}, $path, $matches) |
494
|
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unless $matched; |
495
|
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} |
496
|
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} |
497
|
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} |
498
|
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499
|
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1; |