cx/lib/markdown.php

   1 <?php
   2
   3 cx_require('lib', 'images.php');
   4 cx_require('lib', 'url.php');
   5 cx_require('third_party', 'parsedown', 'Parsedown.php');
   6
   7 class ExtendedParsedown extends Parsedown {
   8         public function __construct() {
   9                 $this->InlineTypes['{'][] = 'BlogImage';
  10                 $this->InlineTypes['{'][] = 'Youtube';
  11                 $this->inlineMarkerList .= '{';
  12         }
  13
  14         protected function inlineBlogImage($excerpt) {
  15                 if (preg_match('/^{img:([^}]+)}/', $excerpt['text'], $matches)) {
  16                         $image_id = $matches[1];
  17                         $image = cx_images_find_image($image_id);
  18
  19                         if ($image == null) {
  20                                 return;
  21                         }
  22
  23                         return array(
  24                                 'extent' => strlen($matches[0]) + 1,
  25                                 'element' => array(
  26                                         'name' => 'img',
  27                                         'attributes' => array(
  28                                                 'src' => cx_url_site($image->get_permalink_path()),
  29                                                 'alt' => $image->alt_text,
  30                                         ),
  31                                 ),
  32                         );
  33                 }
  34         }
  35
  36         protected function inlineYoutube($excerpt) {
  37                 if (preg_match('/^{yt:([^}]+)}/', $excerpt['text'], $matches)) {
  38                         $video_id = $matches[1];
  39
  40                         if ($video_id == null) {
  41                                 return;
  42                         }
  43
  44                         return array(
  45                                 'extent' => strlen($matches[0]) + 1,
  46                                 'element' => array(
  47                                         'name' => 'iframe',
  48                                         'text' => '',
  49                                         'attributes' => array(
  50                                                 'class' => "video",
  51                                                 'type' => "text/html",
  52                                                 //'width' => "640",
  53                                                 //'height' => "360",
  54                                                 'src' => "https://www.youtube.com/embed/" . $video_id,
  55                                                 'frameborder' => "0",
  56                                                 'loading' => "lazy",
  57                                                 'referrerpolicy' => "no-referrer",
  58                                                 'sandbox' => "allow-same-origin allow-scripts",
  59                                         ),
  60                                 ),
  61                         );
  62                 }
  63         }
  64 }
  65
  66 function cx_markdown_generate_html($markdown) {
  67         static $Parsedown = new ExtendedParsedown();
  68         return $Parsedown->text($markdown);
  69 }