You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

126 lines
2.9 KiB
PHTML

<?php
/**
* The Yoast TOC Block Converter.
*
* @since 1.0.104
* @package RankMath
* @subpackage RankMath\Status
* @author Rank Math <support@rankmath.com>
*/
namespace RankMath\Tools;
use RankMath\Helpers\HTML;
defined( 'ABSPATH' ) || exit;
/**
* Yoast_TOC_Converter class.
*/
class Yoast_TOC_Converter {
/**
* Convert TOC blocks to Rank Math.
*
* @param array $block Block to convert.
*
* @return array
*/
public function convert( $block ) {
$exclude_headings = [];
if ( ! empty( $block['attrs']['maxHeadingLevel'] ) ) {
for ( $i = $block['attrs']['maxHeadingLevel'] + 1; $i <= 6; $i++ ) {
$exclude_headings[] = "h{$i}";
}
}
$new_block = [
'blockName' => 'rank-math/toc-block',
'attrs' => [
'title' => $this->get_toc_title( $block['innerHTML'] ),
'headings' => $this->get_headings( $block['innerHTML'] ),
'listStyle' => 'ul',
'titleWrapper' => 'h2',
'excludeHeadings' => $exclude_headings,
],
];
$new_block['innerContent'][] = $this->get_html( $block['innerHTML'] );
return $new_block;
}
/**
* Replace block in content.
*
* @param string $post_content Post content.
* @param array $blocks Blocks.
*
* @return string
*/
public function replace( $post_content, $blocks ) {
preg_match_all( '/<!-- wp:yoast-seo\/table-of-contents.*-->.*<!-- \/wp:yoast-seo\/table-of-contents -->/iUs', $post_content, $matches );
foreach ( $matches[0] as $index => $match ) {
$post_content = \str_replace( $match, $blocks[ $index ], $post_content );
}
return $post_content;
}
/**
* Extract headings from the block content.
*
* @param string $content Block content.
*
* @return array
*/
public function get_headings( $content ) {
preg_match_all( '|<a\s*href="([^"]+)"[^>]+>([^<]+)</a>|', $content, $matches );
if ( empty( $matches ) || empty( $matches[0] ) ) {
return [];
}
$headings = [];
foreach ( $matches[0] as $link ) {
$attrs = HTML::extract_attributes( $link );
$headings[] = [
'key' => uniqid( 'toc-' ),
'link' => $attrs['href'] ?? '',
'content' => wp_strip_all_tags( $link ),
'level' => $attrs['data-level'] ?? '',
'disable' => false,
];
}
return $headings;
}
/**
* Get TOC title.
*
* @param string $html Block HTML.
*
* @return string
*/
public function get_toc_title( $html ) {
preg_match( '#<h2.*?>(.*?)</h2>#i', $html, $found );
return ! empty( $found[1] ) ? $found[1] : '';
}
/**
* Generate HTML.
*
* @param string $html Block html.
*
* @return string
*/
private function get_html( $html ) {
$html = str_replace( 'wp-block-yoast-seo-table-of-contents yoast-table-of-contents', 'wp-block-rank-math-toc-block', $html );
$html = str_replace( '</h2><ul>', '</h2><nav><ul>', $html );
$html = str_replace( '</ul></div>', '</nav></ul></div>', $html );
$html = preg_replace( '/data-level="([^"]*)"/', '', $html );
return $html;
}
}