Not sure what the syntax is, but I agree that holding to a fixed number of arguments will be best, particularly for filtering out syntax errors.
On 17 Nov 2021, at 11:51, phoebe Goldman wrote:
On Nov 17, 2021, at 12:37 PM, Robert Goldman <rpgoldman@sift.info> wrote:version constraints like
(:version "my-unstable-library" < 3)or something like that will go in to ASDF.Might I suggest the syntax:(:version "my-lib" (:min "2")) ; equiv to (:version "my-lib" "3")(:version "my-lib" (:below "3")) ; not :MAX, because this is an exclusive bound(:version "my-lib" (:range "2" "3")) ; inclusive lower, exclusive upper boundI believe it is both useful and aesthetically pleasing to keep the :version form to exactly three elements.cheers,phoebe