Rdo_append_argument {Rdpack}

Append an item for a new argument to an Rd object

Description

Append an item for a new argument to an Rd object.

Usage

Rdo_append_argument(rdo, argname, description = NA, indent = "  ", create = FALSE)

Arguments

rdo

an Rd object.

argname

name of the argument, a character vector.

description

description of the argument, a character vector.

indent

a string, typically whitespace.

create

not used (todo: remove?)

Details

Appends one or more items to the section describing arguments of functions in an Rd object. The section is created if not present.

If description is missing or NA, a "todo" text is inserted.

The inserted text is indented using the string indent.

The lengths of argname and description should normally be equal but if description is of length one, it is repeated to achieve this when needed.

Value

an Rd object

Author(s)

Georgi N. Boshnakov

Examples

## the following creates Rd object rdo
dummyfun <- function(x) x
fn <- tempfile("dummyfun", fileext = ".Rd")
reprompt(dummyfun, filename = fn)
rdo <- tools::parse_Rd(fn)

## add documentation for arguments
## that are not in the signature of 'dummyfun()'
dottext <- "further arguments to be passed on."
dots <- paste0("\\", "dots")
rdo2 <- Rdo_append_argument(rdo, dots, dottext, create = TRUE)
rdo2 <- Rdo_append_argument(rdo2, "z", "a numeric vector")

## reprompt() warns to remove documentation for non-existing arguments:
Rdo_show(reprompt(rdo2, filename = fn))

unlink(fn)