in
PET.mk_tactic if_
+let ifs ~start ~continuations ~fail =
+ let ifs status =
+ let xoutput =
+ try
+ let result = PET.apply_tactic start status in
+ info (lazy ("Tacticals.ifs: succedeed!!!"));
+ Some result
+ with PET.Fail _ -> None
+ in
+ let tactic = match xoutput with
+ | Some res -> thens ~start:(const_tac res) ~continuations
+ | None -> fail
+ in
+ PET.apply_tactic tactic status
+ in
+ PET.mk_tactic ifs
+
let first ~tactics =
let rec first ~(tactics: tactic list) status =
info (lazy "in Tacticals.first");