NAME

       HTML::WikiConverter::Normalizer - Convert CSS styles to (roughly) corresponding HTML

SYNOPSIS

         use HTML::TreeBuilder;
         use HTML::WikiConverter::Normalizer;

         my $tree = new HTML::TreeBuilder();
         $tree->parse( '<p><font style="font-style:italic; font-weight:bold">text</font></p>' );

         my $norm = new HTML::WikiConverter::Normalizer();
         $norm->normalize($tree);

         # Roughly gives "<p><font><b><i>text</i></b></font></p>"
         print $tree->as_HTML();

DESCRIPTION

       HTML::WikiConverter dialects convert HTML into wiki markup. Most (if not all) know nothing
       about CSS, nor do they take it into consideration when performing html-to-wiki conversion.
       But there is no good reason for, say, "<font style="font-weight:bold">text</font>" not to
       be converted into '''text''' in the MediaWiki dialect. The same is true of other dialects,
       all of which should be able to use CSS information to produce wiki markup.

       The issue becomes especially problematic when considering that several WYSIWYG HTML
       editors (e.g. Mozilla's) produce this sort of CSS-heavy HTML. Prior to
       "HTML::WikiConverter::Normalizer", this HTML would have been essentially converted to
       text, the CSS information having been ignored by "HTML::WikiConverter".

       "HTML::WikiConverter::Normalizer" avoids this with a few simple transformations that
       convert CSS styles into HTML tags.

METHODS

   new
         my $norm = new HTML::WikiConverter::Normalizer();

       Constructs a new normalizer

   normalize
         $norm->normalize($elem);

       Normalizes $elem and all its descendents, where $elem is an HTML::Element object.

SUBCLASSING

       The following methods may be useful to subclasses.

   handlers
         my $handlers = $self->handlers;

       Class method returning reference to an array of handlers used to convert CSS to HTML. Each
       handler is a hashref that specifies the CSS properties and values to match, and the HTML
       tags and attributes the matched properties will be converted to.

       The "type", "name", "value", and "tag" keys may be used to match an element's property or
       attribute. "type" may be either "css" if matching a CSS property (in which case "name"
       must contain the name of the property, and "value" must contain the property value to
       match) or "attr" if matching an HTML tag attribute (in which case "name" must contain the
       name of the attribute, and "value" must contain the attribute value to match).

       "value" may be a string (for an exact match), regex (which will be used to match against
       the element's property or attribute value), coderef (which will be passed the property or
       attribute value and is expected to return true on match, false otherwise), or "*" (which
       matches any property or attribute value). A tag or list of tags can also be matched with
       the "tag" key, which takes either a string or an arrayref.

       To specify what actions the handler will take, the "new_tag", "new_attr", and "normalizer"
       keys are used. "new_tag" is required and indicates the name of the tag that will be
       created. "attribute" is optional and indicates the name of the attribute in the new tag
       that will take the value of the original CSS property. If a coderef is given as the
       "normalizer", it will be passed the value of the property/attribute and should return one
       suitable to be assigned to the new tag attribute.

SEE ALSO

       CSS

AUTHOR

       David J. Iberri, "<diberri@cpan.org>"

BUGS

       Please report any bugs or feature requests to "bug-html-wikiconverter at rt.cpan.org", or
       through the web interface at
       <http://rt.cpan.org/NoAuth/ReportBug.html?Queue=HTML-WikiConverter>.  I will be notified,
       and then you'll automatically be notified of progress on your bug as I make changes.

COPYRIGHT & LICENSE

       Copyright 2006 David J. Iberri, all rights reserved.

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