The help of a spec item's argument

What the GUI's ? and the AI kit say about one argument of a spec item: the schema's description of it, or, for an argument a spec sheet's column also holds (rtf_page(paper_size = ) is the page sheet's paper_size), that column's help – one text, wherever it is read.

Usage

tfl_schema_help(fn, arg)

Arguments

fn

A function of the spec ("rtf_page", "plan_cells").

arg

One of its arguments.

Value

The text, or NA when the schema says nothing of it.

See also

tfl_schema(), tfl_spec_columns()

Examples

tfl_schema_help("rtf_page", "orientation")
#> [1] "landscape / portrait; blank: landscape."