Arguments
call
Can be a call, a formula quoting a call in the
right-hand side, or a frame object from which to extract the call
expression. If not supplied, the calling frame is used.
fn
The function against which to standardise the call. If
not supplied, it is either retrieved from call if the
latter is frame or formula (by looking up the formula's
environment). Alternatively, it is lookep up in the calling frame
if not supplied.
caller_env
Parent frame in which to look up call the
contents of .... If not supplied and call is a
frame object, it is retrieved from call.
enum_dots
Whether to standardise the names of dotted
arguments. If TRUE, this produces calls such as
f(..1 = ..2) instead of f(..2). The first form is
mostly intended for code analysis tools as it makes it easier to
climb arguments through nested calls. The latter form (the
default) is more faithful to the actual call and is ready to be
evaluated.
add_missings
Whether to standardise missing arguments.