wp_restore_image_outer_container

WordPress Version: 6.1

/**
 * For themes without theme.json file, make sure
 * to restore the outer div for the aligned image block
 * to avoid breaking styles relying on that div.
 *
 * @since 6.0.0
 * @access private
 *
 * @param string $block_content Rendered block content.
 * @param  array  $block        Block object.
 * @return string Filtered block content.
 */
function wp_restore_image_outer_container($block_content, $block)
{
    $image_with_align = "\n/# 1) everything up to the class attribute contents\n(\n\t^\\s*\n\t<figure\\b\n\t[^>]*\n\t\\bclass=\n\t[\"']\n)\n# 2) the class attribute contents\n(\n\t[^\"']*\n\t\\bwp-block-image\\b\n\t[^\"']*\n\t\\b(?:alignleft|alignright|aligncenter)\\b\n\t[^\"']*\n)\n# 3) everything after the class attribute contents\n(\n\t[\"']\n\t[^>]*\n\t>\n\t.*\n\t<\\/figure>\n)/iUx";
    if (WP_Theme_JSON_Resolver::theme_has_support() || 0 === preg_match($image_with_align, $block_content, $matches)) {
        return $block_content;
    }
    $wrapper_classnames = array('wp-block-image');
    // If the block has a classNames attribute these classnames need to be removed from the content and added back
    // to the new wrapper div also.
    if (!empty($block['attrs']['className'])) {
        $wrapper_classnames = array_merge($wrapper_classnames, explode(' ', $block['attrs']['className']));
    }
    $content_classnames = explode(' ', $matches[2]);
    $filtered_content_classnames = array_diff($content_classnames, $wrapper_classnames);
    return '<div class="' . implode(' ', $wrapper_classnames) . '">' . $matches[1] . implode(' ', $filtered_content_classnames) . $matches[3] . '</div>';
}