Function reference • options

Accessing Options

opt() opt_source() opts(): Inspecting Option Values

Defining Options

define_option() define_options(): Defining Options

option_spec(): Specify Option

`roxygen2` Docs

as_params(): Produce @param roxygen sections for options

as_roxygen_docs(): Generate Standalone ?options Documentation

Customize

Naming Conventions

set_envvar_name_fn() set_option_name_fn(): Define Naming Conventions

option_name_default() envvar_name_default() envvar_name_generic(): Naming Convention Formatters

Environment Variable Parsing

envvar_fns envvar_is envvar_is.NULL envvar_is.character envvar_is.numeric envvar_is.logical envvar_eval envvar_eval_or_raw envvar_is_one_of envvar_choice_of envvar_is_true envvar_is_false envvar_is_set envvar_str_split: Generator functions for environment variable processors