commonmark

The commonmark R package converts markdown text into multiple output formats including HTML, LaTeX, groff man, and XML. It implements the CommonMark specification and supports GitHub Flavored Markdown extensions.

The package uses the cmark reference implementation for high-performance rendering. It supports GitHub extensions like tables, autolinks, strikethrough text, task lists, and tag filtering. The package also exposes the markdown parse tree in XML format, enabling programmatic analysis of document structure.