crack Parse R Markdown or R scripts engines Language engines fuse Render Markdown, R Markdown, and R scripts fuse_book Fuse multiple R Markdown documents to a single output file fuse_env The 'fuse()' environment fuse_site Fuse R Markdown documents individually under a directory get_context Get the 'fuse()' context html_format Output formats in YAML metadata litedown-package A lightweight version of R Markdown markdown_options Markdown rendering options pkg_desc Print the package description, news, citation, manual pages, and source code raw_text Mark a character vector as raw output reactor Get and set chunk options roam Preview Markdown and R Markdown files timing_data Get the timing data of code chunks and text blocks in a document vest Add CSS/JS assets to HTML output