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package XML::Bits; |
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$VERSION = v0.0.1; |
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27114
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use warnings; |
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use strict; |
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use Carp; |
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use overload |
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'""' => sub {shift->stringify}, |
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fallback => 1; |
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use base 'Tree::Base'; |
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use Class::Accessor::Classy; |
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9439
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rw 'tag'; |
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ro 'type'; |
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lw 'atts'; |
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ri 'doctype'; |
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ro 'content'; |
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no Class::Accessor::Classy; |
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our @EXPORT_OK = qw(T); |
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BEGIN { |
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require Exporter; |
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*import = \&Exporter::import; |
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} |
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=head1 NAME |
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XML::Bits - a tree of XML nodes |
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=head1 SYNOPSIS |
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use XML::Bits; |
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my $div = XML::Bits->new(div =>); |
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$div->create_child(div =>)->create_child(div =>); |
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print $div, "\n"; |
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=cut |
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=head2 new |
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my $node = XML::Bits->new($tag => [%attributes], @children); |
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=cut |
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sub new { |
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my $class = shift; |
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my $tag = shift; |
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my $self = $class->SUPER::new(tag => $tag); |
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$self->{atts} = ref($_[0]) eq 'ARRAY' ? shift(@_) : []; |
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my @children = @_; |
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100
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if($self->tag eq '') { |
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$self->{type} = 'text'; |
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1
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$self->{content} = join('', @children); |
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} |
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else { |
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$self->{type} = 'node'; |
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# TODO this is expensive unless we contextually disable re-rooting |
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foreach my $child (@children) { |
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$self->add_child($child); |
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} |
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} |
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return($self); |
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} # new ################################################################ |
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=head2 add_child |
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73
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Adds a child, regardless of the child's previous parenthood. |
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75
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$node->add_child($child); |
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NOTE: there's some questionable issues about the tree parentage and |
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rerooting here. Beware of bugs if you move elements around between |
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trees. ALSO NOTE: this API might change such that it is required to |
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use a different method for this sort of thing. |
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82
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=cut |
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84
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sub add_child { |
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my $self = shift; |
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my ($child) = @_; |
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delete $child->{root}; |
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delete $child->{parent}; |
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return $self->SUPER::add_child($child); |
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} # add_child ########################################################## |
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=head2 is_text |
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Returns true if this is a text node. |
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$node->is_text; |
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100
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=cut |
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102
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sub is_text { shift->type eq 'text' } |
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######################################################################## |
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105
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=head2 stringify |
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107
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Stringification (and operator overloading support.) |
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109
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my $string = $node->stringify; |
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111
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=cut |
112
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113
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sub stringify { |
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my $self = shift; |
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116
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3
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100
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return($self->{content}) if($self->type eq 'text'); |
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118
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2
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my $string = '<' . $self->tag; |
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48
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if(my $dt = $self->doctype) { |
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0
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0
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$string = '\n\n" . $string; |
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} |
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123
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if(my @atts = $self->atts) { |
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0
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$string .= ' ' . join(' ', |
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0
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map({$atts[2*$_] . '="' . $atts[2*$_+1] . '"'} 0..(($#atts-1)/2)) |
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); |
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} |
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129
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if(my @kids = $self->children) { |
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$string .= '>' . |
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join('', map({$_->stringify} @kids)) . |
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'tag . '>'; |
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} |
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else { |
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0
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$string .= ' />'; |
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} |
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2
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return($string); |
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} # stringify ########################################################## |
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140
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=head2 T |
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142
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A shortcut tag constructor. |
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144
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T{tag => [%atts], @content}; |
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146
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=cut |
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148
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sub T (&) { |
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my ($sub) = @_; |
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0
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my @what = $sub->(); |
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#warn "what: (@what)\n"; |
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0
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foreach my $item (@what) { |
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0
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$item = __PACKAGE__->new('', $item) unless(ref($item)); |
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} |
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0
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return(__PACKAGE__->new(@what)); |
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} # T ################################################################## |
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158
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=head1 AUTHOR |
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160
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Eric Wilhelm @ |
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162
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http://scratchcomputing.com/ |
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164
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=head1 BUGS |
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166
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If you found this module on CPAN, please report any bugs or feature |
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requests through the web interface at L. I will be |
168
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notified, and then you'll automatically be notified of progress on your |
169
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bug as I make changes. |
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If you pulled this development version from my /svn/, please contact me |
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directly. |
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174
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=head1 COPYRIGHT |
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176
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Copyright (C) 2009 Eric L. Wilhelm, All Rights Reserved. |
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178
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=head1 NO WARRANTY |
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180
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Absolutely, positively NO WARRANTY, neither express or implied, is |
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offered with this software. You use this software at your own risk. In |
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case of loss, no person or entity owes you anything whatsoever. You |
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have been warned. |
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185
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=head1 LICENSE |
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187
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This program is free software; you can redistribute it and/or modify it |
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under the same terms as Perl itself. |
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190
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=cut |
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192
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# vi:ts=2:sw=2:et:sta |
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1; |