/**
 * Register included DOM transformation filters
 *
 * @since 0.1
 */
function instant_articles_register_transformation_filters()
{
    include dirname(__FILE__) . '/dom-transform-filters/class-instant-articles-dom-transform-filter-video.php';
    Instant_Articles_DOM_Transform_Filter_Runner::register('Instant_Articles_DOM_Transform_Filter_Video');
    include dirname(__FILE__) . '/dom-transform-filters/class-instant-articles-dom-transform-filter-image.php';
    Instant_Articles_DOM_Transform_Filter_Runner::register('Instant_Articles_DOM_Transform_Filter_Image');
    include dirname(__FILE__) . '/dom-transform-filters/class-instant-articles-dom-transform-filter-blockquote.php';
    Instant_Articles_DOM_Transform_Filter_Runner::register('Instant_Articles_DOM_Transform_Filter_Blockquote');
    include dirname(__FILE__) . '/dom-transform-filters/class-instant-articles-dom-transform-filter-unordered-list.php';
    Instant_Articles_DOM_Transform_Filter_Runner::register('Instant_Articles_DOM_Transform_Filter_Unordered_List');
    include dirname(__FILE__) . '/dom-transform-filters/class-instant-articles-dom-transform-filter-ordered-list.php';
    Instant_Articles_DOM_Transform_Filter_Runner::register('Instant_Articles_DOM_Transform_Filter_Ordered_List');
    include dirname(__FILE__) . '/dom-transform-filters/class-instant-articles-dom-transform-filter-table.php';
    Instant_Articles_DOM_Transform_Filter_Runner::register('Instant_Articles_DOM_Transform_Filter_Table');
    include dirname(__FILE__) . '/dom-transform-filters/class-instant-articles-dom-transform-filter-address.php';
    Instant_Articles_DOM_Transform_Filter_Runner::register('Instant_Articles_DOM_Transform_Filter_Address');
    //Instant articles only support h1 and h2. Convert h3-h6 to h2.
    include dirname(__FILE__) . '/dom-transform-filters/class-instant-articles-dom-transform-filter-heading.php';
    Instant_Articles_DOM_Transform_Filter_Runner::register('Instant_Articles_DOM_Transform_Filter_Heading');
    // Remove empty elements
    include dirname(__FILE__) . '/dom-transform-filters/class-instant-articles-dom-transform-filter-emptyelements.php';
    Instant_Articles_DOM_Transform_Filter_Runner::register('Instant_Articles_DOM_Transform_Filter_Emptyelements');
}