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rmarkdown (version 1.3)

default_output_format: Determine the default output format for an R Markdown document

Description

Read the YAML metadata (and any common _output.yml file) for the document and return the output format that will be generated by a call to render.

Usage

default_output_format(input, encoding = getOption("encoding"))

Arguments

input
Input file (Rmd or plain markdown)
encoding
The encoding of the input file; see file

Value

A named list with a name value containing the format name and an options value that is a list containing all the options for the format and their values. An option's default value will be returned if the option isn't set explicitly in the document.

Details

This function is useful for front-end tools that require additional knowledge of the output to be produced by render (e.g. to customize the preview experience).