Method postProcessHTML

src/parser.js:540–705

* Post-process HTML to consolidate lists and code blocks * @param {string} html - HTML to post-process * @param {Function} instanceHighlighter - Instance-specific code highlighter (optional, overrides global if provided) * @returns {string} Post-processed HTML with consolidated lists and co

(html, instanceHighlighter)

   * @returns {string} Post-processed HTML with consolidated lists and code blocks
   */
  static postProcessHTML(html, instanceHighlighter) {
    // Check if we're in a browser environment
    if (typeof document === 'undefined' || !document) {
      // In Node.js environment - do manual post-processing
      return this.postProcessHTMLManual(html, instanceHighlighter);
    }

    // Parse HTML string into DOM
    const container = document.createElement('div');
    container.innerHTML = html;

    let currentList = null;
    let listType = null;
    let currentCodeBlock = null;
    let inCodeBlock = false;

    // Process all direct children - need to be careful with live NodeList
    const children = Array.from(container.children);

    for (let i = 0; i < children.length; i++) {
      const child = children[i];

      // Skip if child was already processed/removed
      if (!child.parentNode) continue;

      // Check for code fence start/end
      const codeFence = child.querySelector('.code-fence');
      if (codeFence) {
        const fenceText = codeFence.textContent;
        if (fenceText.startsWith('```')) {
          if (!inCodeBlock) {
            // Start of code block - keep fence visible, then add pre/code
            inCodeBlock = true;

            // Create the code block that will follow the fence
            currentCodeBlock = document.createElement('pre');
            const codeElement = document.createElement('code');
            currentCodeBlock.appendChild(codeElement);
            currentCodeBlock.className = 'code-block';

            // Extract language if present
            const lang = fenceText.slice(3).trim();
            if (lang) {
              codeElement.className = `language-${lang}`;
            }

            // Insert code block after the fence div (don't remove the fence)
            container.insertBefore(currentCodeBlock, child.nextSibling);

            // Store reference to the code element for adding content
            currentCodeBlock._codeElement = codeElement;
            currentCodeBlock._language = lang;
            currentCodeBlock._codeContent = '';
            continue;
          } else {
            // End of code block - apply highlighting if needed
            // Use instance highlighter if provided, otherwise fall back to global highlighter
            const highlighter = instanceHighlighter || this.codeHighlighter;