Save Praat form arguments as attributes in returned object

[stefanocoretta]

When running praat_run() with arguments to be passed to form in the Praat script, the returned object should have an attribute args with a named list of arguments and their value.

For example:

obj <- run_praat("script.praat", "Hertz", 0.5, capture = TRUE)
attributes(obj)
> $args
> $args$unit
> [1] "Hertz"
>
> $args$window
> [1] 0.5

How to assign names? Perhaps:

obj <- run_praat("script.praat", "Hertz", 0.5, capture = TRUE, args = c("unit", "window"))

or better, use named args.

test <- function(...) names(list(...))
test(1, a = "a", b = "b")
> [1] ""  "a" "b"