Extract or infer names from ... arguments.
Examples
if (FALSE) { # \dontrun{
get_names_4_ids(a = 1, b = 2)
# [1] "a" "b"
c <- 3
get_names_4_ids(a = 1, b = 2, c)
# [1] "a" "b" "c"
get_names_4_ids()
# character(0)
mat1 <- matrix(1:2)
mat2 <- matrix(3:4)
get_names_4_ids(mat1, mat2)
# [1] "mat1" "mat2"
get_names_4_ids(mat1, c = mat2)
# [1] "mat1" "c"
} # }