Michael Accardo


  HTML::Element::Replacer - Simplify the HTML::Element clone() - push_content() ritual


  use HTML::Element::Replacer;

   my $replacer = HTML::Element::Replacer->new(tree => $tree, look_down => [ scla => 'mid' ]);
   for my $data (@data) {
     $replacer->push_clone->defmap(attr_name => $data); # clone and push onto @temp_list
  # by default Replacer replaces... so it removes the element you were push_clone()ing


Let's say you have this HTML:


   <tr scla="top"/> 

   <tr scla="mid"> 
     <td kmap="brand"> blah </td>
     <td kmap="age"> blah </td>

   <tr scla="bot"/> 


Now let's say you have 5 data rows that you wish to display using the middle tr as your sample. The pure HTML::Tree way to do this would be:

 my $sample_tr = $tree->look_down(scla => 'mid');

 my @c;
 for my $data (@data) {
    my $c = $sample_tr->clone; 
    $c->defmap(kmap => $data);
    push @c, $c;


We did cheat a bit by using defmap() from HTML::Element::Library. Now, with this class, we can do this:

    my $replacer = HTML::Element::Replacer->new(look_down => [ scla => 'mid' ]);
    for my $data (@data) {
        my $clone = $replacer->push_clone->defmap(kmap => $data); # clone and push onto @temp_list

 } # replacer goes out of scope and then replaces sample_tr


Maintained by Mike Accardo since 2014.

Orignally written by Terrence Brannon, <tbone at cpan.org>

Many thanks to Dave Rolsky in #moose on irc.perl.org


Copyright 2009 Terrence Brannon, Copyright 2014 by Mike Accardo, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.