HTML::HTML5::Sanity - make HTML5 DOM trees less insane

       Toby Inkster <tobyink@cpan.org>.

       Please report any bugs to <http://rt.cpan.org/>.

       Copyright (C) 2009-2014 by Toby Inkster

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

       The Document Object Model (DOM) generated by HTML::HTML5::Parser meets the requirements of the HTML5
       spec, but will probably catch a lot of people by surprise.

       The main oddity is that elements and attributes which appear to be namespaced are not really. For
       example, the following element:

         <div xml:lang="fr">...</div>

       Looks like it should be parsed so that it has an attribute "lang" in the XML namespace. Not so. It will
       really be parsed as having the attribute "xml:lang" in the null namespace.

       fix_document($document)
             $sane_dom = fix_document($html5_dom);

           Returns a modified copy of the DOM and leaving the original DOM unmodified.

       "fix_element($element_node, $new_document_node, \%namespaces)"
           Don't use this. Not exported.

       "fix_attribute($attribute_node, $new_element_node, \%namespaces)"
           Don't use this. Not exported.

       $HTML::HTML5::Sanity::FIX_LANG_ATTRIBUTES
             $HTML::HTML5::Sanity::FIX_LANG_ATTRIBUTES = 2;
             $sane_dom = fix_document($html5_dom);

           If  set to 1 (the default), the package will detect invalid values in @lang and @xml:lang, and remove
           the attribute if it is invalid. If set to 2, it will also attempt to  canonicalise  the  value  (e.g.
           'EN_GB'  will  be converted to to 'en-GB'). If set to 0, then the value of language attributes is not
           checked.

       THIS  PACKAGE  IS  PROVIDED  "AS  IS"  AND  WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
       LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

perl v5.40.1                                       2025-02-18                           HTML::HTML5::Sanity(3pm)

       HTML::HTML5::Sanity - make HTML5 DOM trees less insane

       HTML::HTML5::Parser, XML::LibXML, Task::HTML5.

         use HTML::HTML5::Parser;
         use HTML::HTML5::Sanity;

         my $parser    = HTML::HTML5::Parser->new;
         my $html5_dom = $parser->parse_file('http://example.com/');
         my $sane_dom  = fix_document($html5_dom);