Custom function for converting posts content from IPBoard to NodeBB using nodebb-plugin-import module

nodebb-import-custom-pre-parse-conversion.js

// Custom convert function for nodebb import plugin
content = content && encoding.convert(content, 'utf8', 'ISO-8859-2');
content = content && content.toString('utf8');

// This depends on changes implemented in https://github.com/ahwayakchih/nodebb-plugin-import/tree/feat-pass-type-and-id-to-custom-js
// It also assumes that HTML-to-Markdown conversion will be enabled too
// This is quite slow. Regexes probably could be optimized a bit, but it's a one-time-use-and-forget operation, so not much point i guess
if (type == 'post') {
  content = content && content
    .replace(/<!--quoteo\(post=(\d+)[^)]+name=([^):]+)[\w\W]+?<a\s+href="([^"]+)"[\w\W]+?<!--quotec-->([\w\W]+?)<!--QuoteEnd-->[\w\W]+?<!--QuoteEEnd-->/g, (m, pid, name, link, text) => {
      // Later version of quotes includes marked user name, post id, etc...
      return `[:arrow_upper_left:](${link.replace(/^index\.php/, '/index.php')})@${name.replace(/\s+/g, '-')}:<br />> ${text.replace(/<br\s*\/?>/g, `<br />> `)}<br />`;
    })
    .replace(/<!--quoteo[\w\W]+?<!--quotec--><i>[^\s]+\s+([^<>]+)<\/i>([\w\W]+?)<!--QuoteEnd-->[\w\W]+?<!--QuoteEEnd-->/g, (m, name, text) => {
      // Earlier version of quotes did not mark user name, nor add link or post id
      return `@${name.replace(/\s+/g, '-')}:<br />> ${text.replace(/<br\s*\/?>/g, `<br />> `)}<br />`;
    })
    .replace(/<img[^<>]+(?:<#EMO_DIR#>[^<>]+)?emoid="([^"]+)"[^<>]+>/g, (m, smily) => {
      return smily;
    })
}