R: Set formatting options for text help

Rd2txt_options {tools} | R Documentation

## Set formatting options for text help

### Description

This function sets various options for displaying text help.

### Usage

    Rd2txt_options(...)

### Arguments

`...` | A list containing named options, or options passed as individual named arguments. See below for currently defined ones.

### Details

This function persistently sets various formatting options for the `Rd2txt` function which is used in displaying text format help. Currently defined options are:

width

  (default 80): The width of the output page.

minIndent

  (default 10): The minimum indent to use in a list.

extraIndent

  (default 4): The extra indent to use in each level of nested lists.

sectionIndent

  (default 5): The indent level for a section.

sectionExtra

  (default 2): The extra indentation for each nested section level.

itemBullet

  (default `"* "`, with the asterisk replaced by a Unicode bullet in UTF-8 and most Windows locales): The symbol to use as a bullet in itemized lists.

enumFormat

  : A function to format item numbers in enumerated lists.

showURLs

  (default `FALSE`): Whether to show URLs when expanding

      \href

  tags.
code_quote

  (default `TRUE`): Whether to render

      \code

  and similar with single quotes.
underline_titles

  default `TRUE`): Whether to render section titles with underlines (via backspacing).

### Value

If called with no arguments, returns all option settings in a list. Otherwise, it changes the named settings and invisibly returns their previous values.

### Author(s)

Duncan Murdoch

### See Also

`Rd2txt`

### Examples

    # The itemBullet is locale-specific
    saveOpts <- Rd2txt_options()
    saveOpts
    Rd2txt_options(minIndent = 4)
    Rd2txt_options()
    Rd2txt_options(saveOpts)
    Rd2txt_options()

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