The new behavior inserts required special comment as a last element of $header-includes$. (See also NEWS from 2.8 for the previous behavior). Previously since 2.8, developers had to add a special comment,, conditionally to shiny-prerendered variable. Rendering using runtime: shiny_prerendered or runtime: shinyrmd now natively supports custom templates. It can be set to FALSE to opt-out the HTML dependency html_dependency_header_attrs() in documents based on html_document_base() (thanks, rstudio/bookdown#865, r-lib/downlit#1538). This is the second Language Variables after lang.Īdded a global option rmarkdown.html_dependency.header_attr ( TRUE by default). See more in Pandoc’s MANUAL.Īdded support for Pandoc’s dir variable in HTML templates. As a reminder, setting incremental = TRUE will make lists to display incrementally. Meanwhile, github_document() gained the preserve_yaml argument (thanks, #2297).Īdded available_templates() to list all the templates from a specific package that can be used with rmarkdown::draft().įollowing support in Pandoc 2.15, powerpoint_presentation() gained a incremental argument as other slide formats. Due to limitation in how Pandoc is handling metadata blocks in its extensions yaml_metadata_block, preserve_yaml = TRUE now deactivate any extension to let rmarkdown directly handle the keeping of YAML block - this means it does not set standalone = TRUE by default. This allows to output authors, date and other metadata per the Pandoc’s template. Md_document() gained a new standalone argument, which is FALSE by default unless toc = TRUE. Templates for html_document() and ioslides_presentation() gained a new CSS rule to display single line content inline (rstudio/rstudio#10589). This features require the downlit package. Use highlight_downlit = TRUE to activate it (same argument as in distill). For HTML output only, added optional downlit support in html_document() for R syntax highlighting and autolinking.In addition to Pandoc’s own supported themes, two more themes are bundled in the package: highlight: arrow a theme optimized for accessibility and color contrast (thanks to and highlight: rstudio to mimic the RStudio editor theme.theme in highlight argument for customizing the syntax highlighting style used by Pandoc. It is now possible to pass a custom theme file.Improved the highlighting mechanism in formats that supports highlight argument: Detailed explanation and examples have been added to the help page ?html_document. Output : html_document : anchor_sections : style : symbol # use symbol style ("hash", "symbol", "icon") depth : 2 # max depth to apply anchor on (default to max which is 6)Ĭustomizing using a CSS rule is still possible. (thanks, #2304).Īnchor_sections can now be easily customized using style or depth element for anchor_sections. This method offers server-side rendering of all the equations, which means no JS processing is needed in the browser as with usual KaTeX or MathJaX methods. Set math_method = NULL to deactivate.Īdded support for katex R package as a math engine with math_method = "r-katex" in HTML documents. Previously, LaTeX equations were not rendered. Github_document() also gains the math_method argument set to "webtex" by default so that LaTeX equations can be rendered in the Github Markdown document as images. See ?rmarkdown::html_document() for details (thanks, #1940). Most HTML output format using html_document() or html_document_base() as based format should benefit from this new feature. See for supported options (dpi, background, …). A custom URL toward another CDN can be passed as url.įor math_method = "webtex", it will default to inset SVG using. Output : html_document : math_method : engine : mathjax url : math_method = "katex", KaTeX CDN will be inserted in version 0.15.2 by default (from jsdelivr).
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