Method parseLine

src/parser.js:451–484

* Parse a single line of markdown * @param {string} line - Raw markdown line * @returns {string} Parsed HTML line

(line, isPreviewMode = false)

   * @returns {string} Parsed HTML line
   */
  static parseLine(line, isPreviewMode = false) {
    let html = this.escapeHtml(line);

    // Preserve indentation
    html = this.preserveIndentation(html, line);

    // Check for block elements first
    const horizontalRule = this.parseHorizontalRule(html);
    if (horizontalRule) return horizontalRule;

    const codeBlock = this.parseCodeBlock(html);
    if (codeBlock) return codeBlock;

    // Parse block elements
    html = this.parseHeader(html);
    html = this.parseBlockquote(html);
    html = this.parseTaskList(html, isPreviewMode);  // Check task lists before regular bullet lists
    html = this.parseBulletList(html);
    html = this.parseNumberedList(html);

    // Parse inline elements (skip for headers and list items — already parsed inside those functions)
    if (!html.includes('<li') && !html.includes('<h')) {
      html = this.parseInlineElements(html);
    }

    // Wrap in div to maintain line structure
    if (html.trim() === '') {
      // Intentionally use &nbsp; for empty lines to maintain vertical spacing
      // This causes a 0->1 character count difference but preserves visual alignment
      return '<div>&nbsp;</div>';
    }

    return `<div>${html}</div>`;
  }

  /**
   * Parse full markdown text