rmarkdown (version 1.1)

output_format: Define an R Markdown output format

Description

Define an R Markdown output format based on a combination of knitr and pandoc options.

Usage

output_format(knitr, pandoc, keep_md = FALSE, clean_supporting = TRUE, df_print = NULL, pre_knit = NULL, post_knit = NULL, pre_processor = NULL, intermediates_generator = NULL, post_processor = NULL, on_exit = NULL, base_format = NULL)

Arguments

knitr

Knitr options for an output format (see knitr_options)

pandoc

Pandoc options for an output format (see pandoc_options)

keep_md

Keep the markdown file generated by knitting. Note that if this is TRUE then clean_supporting will always be FALSE.

clean_supporting

Cleanup any supporting files after conversion see render_supporting_files

df_print

Method to be used for printing data frames. Valid values include "default", "kable", and "tibble". The "default" method uses print.data.frame. The "kable" method uses the knitr::kable function. The "tibble" method uses the tibble package to print a summary of the data frame. In addition to the named methods you can also pass an arbitrary function to be used for printing data frames. You can disable the df_print behavior entirely by setting the option rmarkdown.df_print to FALSE.

pre_knit

An optional function that runs before kniting which receives the input (input filename passed to render) and ... (for future expansion) arguments.

post_knit

An optional function that runs after kniting which receives the metadata, input_file, runtime, and ... (for future expansion) arguments. This function can return additional arguments to pass to pandoc and can call knitr::knit_meta_add to add additional dependencies based on the contents of the input_file or on other assets side by side with it that may be used to produce html with dependencies during subsequent processing.

pre_processor

An optional pre-processor function that receives the metadata, input_file, runtime, knit_meta, files_dir, and output_dir and can return additional arguments to pass to pandoc.

intermediates_generator

An optional function that receives the original input_file, its encoding, and the intermediates directory (i.e. the intermediates_dir argument to render). The function should generate and return the names of any intermediate files required to render the input_file.

post_processor

An optional post-processor function that receives the metadata, input_file, output_file, clean, and verbose parmaeters, and can return an alternative output_file.

on_exit

A function to call when rmarkdown::render() finishes execution (as registered with a on.exit handler).

base_format

An optional format to extend.

Value

An R Markdown output format definition that can be passed to render.

See Also

render, knitr_options, pandoc_options

Examples

## Not run: 
# output_format(knitr = knitr_options(opts_chunk = list(dev = 'png')),
#               pandoc = pandoc_options(to = "html"))
# ## End(Not run)

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