Function reference

Accessing Options

opt() opt_set() `opt<-`() opt_source() opts() opt_set_local()

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