parsemd.lib.php

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<?php
/* Copyright (C) 2008-2023  Laurent Destailleur     <eldy@users.sourceforge.net>
 * Copyright (C) 2024   MDW             <mdeweerd@users.noreply.github.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 * or see https://www.gnu.org/
 */
 
function dolMd2Html($content, $parser = 'parsedown', $replaceimagepath = null)
{
  // Replace a HTML string with a Markdown syntax
  $content = preg_replace('/<a href="([^"]+)">([^<]+)<\/a>/', '[\2](\1)', $content);
  //$content = preg_replace('/<a href="([^"]+)" target="([^"]+)">([^<]+)<\/a>/', '[\3](\1){:target="\2"}', $content);
  $content = preg_replace('/<a href="([^"]+)" target="([^"]+)">([^<]+)<\/a>/', '[\3](\1)', $content);
 
  // Replace HTML comments
  $content = preg_replace('/<!--.*-->/Ums', '', $content);  // We remove HTML comment that are not MD comment because they will be escaped and output when setSafeMode is set to true.
 
  if (is_array($replaceimagepath)) {
    foreach ($replaceimagepath as $key => $val) {
      $keytoreplace = ']('.$key;
      $valafter = ']('.$val;
      $content = preg_replace('/'.preg_quote($keytoreplace, '/').'/m', $valafter, $content);
    }
  }
  if ($parser == 'parsedown') {
    include_once DOL_DOCUMENT_ROOT.'/includes/parsedown/Parsedown.php';
    $parsedown = new Parsedown();
    $parsedown->setSafeMode(true);    // This will escape HTML link <a href=""> into html entities but markdown links are ok
 
    // Because HTML will be HTML entity encoded, we replace tag we want to keep
    $content = preg_replace('/<span style="([^"]+)">/', '<!-- SPAN_STYLE_\1 -->', $content);
    $content = preg_replace('/<\/span>/', '<!-- SPAN_END -->', $content);
 
    $content = $parsedown->text($content);
 
    $content = preg_replace('/&lt;!-- SPAN_STYLE_([^-]+) --&gt;/', '<span style="\1">', $content);
    $content = preg_replace('/&lt;!-- SPAN_END --&gt;/', '</span>', $content);
  } else {
    $content = nl2br($content);
  }
 
  return $content;
}
 
 
function dolMd2Asciidoc($content, $parser = 'dolibarr', $replaceimagepath = null)
{
  if (is_array($replaceimagepath)) {
    foreach ($replaceimagepath as $key => $val) {
      $keytoreplace = ']('.$key;
      $valafter = ']('.$val;
      $content = preg_replace('/'.preg_quote($keytoreplace, '/').'/m', $valafter, $content);
    }
  }
  //if ($parser == 'dolibarr')
  //{
  $content = preg_replace('/<!--.*-->/msU', '', $content);
  //}
  //else
  //{
  //    $content = $content;
  //}
 
  return $content;
}