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# -*- perl -*- |
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# $Id: Base.pm,v 1.14 2005/05/13 09:53:13 eserte Exp $ |
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# Author: Slaven Rezic |
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# |
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# Copyright (C) 2001 Online Office Berlin. All rights reserved. |
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# Copyright (C) 2002 Slaven Rezic. |
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# This is free software; you can redistribute it and/or modify it under the |
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# terms of the GNU General Public License, see the file COPYING. |
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# |
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# Mail: slaven@rezic.de |
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# WWW: http://we-framework.sourceforge.net |
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# |
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package WE_Content::Base; |
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use strict; |
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use vars qw($VERSION); |
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$VERSION = sprintf("%d.%02d", q$Revision: 1.14 $ =~ /(\d+)\.(\d+)/); |
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sub new { |
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my($self, %args) = @_; |
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my $buf = $self->get_string(%args); |
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my $class = $self->guess_class($buf); |
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my %newargs = %args; |
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delete $newargs{$_} for ("-string", "-file"); |
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$newargs{-string} = $buf; |
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$class->new(%newargs); |
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} |
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sub debug { |
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my $self = shift; |
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if (@_) { |
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$self->{Debug} = $_[0]; |
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} |
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$self->{Debug}; |
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} |
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sub clone { |
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my($self, $as) = @_; |
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require Data::Dumper; |
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my $o; |
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eval Data::Dumper->new([$self],['o'])->Indent(0)->Purity(1)->Dump; |
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die $@ if $@; |
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if (defined $as) { |
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bless $o, $as; |
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} |
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$o; |
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} |
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sub get_string { |
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my($self, %args) = @_; |
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my($buf); |
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if ($args{-file}) { |
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open(F, "< $args{-file}") or die "Can't read $args{-file}: $!"; |
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local $/ = undef; |
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$buf = ; |
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close F; |
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} elsif ($args{-string}) { |
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$buf = $args{-string}; |
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} else { |
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die "Either -string or -file must be specified"; |
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} |
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$buf; |
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} |
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sub guess_class { |
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my($self, $buf) = @_; |
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if ($buf =~ /^---( \#YAML:)?/) { |
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require WE_Content::YAML; |
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'WE_Content::YAML'; |
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} elsif ($buf =~ /^<\?xml/) { |
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if ($buf =~ /
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require WE_Content::XMLText; |
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'WE_Content::XMLText'; |
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} else { |
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require WE_Content::XML; |
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'WE_Content::XML'; |
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} |
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} else { |
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require WE_Content::PerlDD; |
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'WE_Content::PerlDD'; |
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} |
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} |
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sub _by_path { |
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my $self = shift; |
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my $path = shift; |
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my $sep = shift; |
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my $do_set; |
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my $value; |
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if (@_) { |
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$do_set = 1; |
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$value = shift; |
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} |
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my $o = $self->{Object}; |
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return undef if !$o; |
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my $o_ref = \$o; |
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my @path; |
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$sep = "/" if !defined $sep; |
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my $sep_rx = quotemeta $sep; |
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if (UNIVERSAL::isa($path, 'ARRAY')) { |
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@path = @$path; |
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} else { |
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$path =~ s|^$sep_rx/+||; |
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@path = split $sep_rx, $path; |
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} |
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foreach my $p (@path) { |
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if (UNIVERSAL::isa($o, 'ARRAY')) { |
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if (defined $o->[$p]) { |
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$o_ref = \$o->[$p]; |
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$o = $o->[$p]; |
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} else { |
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if ($do_set) { |
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die "Can't set $path to $value"; |
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} |
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return undef; |
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} |
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} elsif (UNIVERSAL::isa($o, 'HASH')) { |
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if (exists $o->{$p}) { |
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$o_ref = \$o->{$p}; |
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$o = $o->{$p}; |
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} else { |
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if ($do_set) { |
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die "Can't set $path to $value"; |
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} |
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return undef; |
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} |
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} else { |
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die "Can't handle " . ref($o) . " ($o) from path @path"; |
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} |
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} |
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if ($do_set) { |
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$$o_ref = $value; |
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} |
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$o; |
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} |
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sub by_path { shift->_by_path(@_, "/") } |
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sub by_dotted { shift->_by_path(@_, ".") } |
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sub set_by_path { shift->by_path(shift, "/", @_) } |
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sub set_by_dotted { shift->by_dotted(shift, ".", @_) } |
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# "prototype": new name, "template": old name |
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sub is_prototype { |
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$_[0]->{Type} eq 'template'; |
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} |
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sub serialize_as { |
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my $self = shift; |
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my $as = shift; |
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if ($as !~ /^WE_Content::/) { |
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$as = "WE_Content::$as"; |
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} |
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eval "require $as"; |
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die $@ if $@; |
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require Storable; |
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my $clone = Storable::dclone($self); |
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bless $clone, $as; # re-bless |
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$clone->serialize(@_); |
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} |
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1; |
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__END__ |