- tactics:

[helm.git] / components / grafite / grafiteAstPp.ml

diff --git a/components/grafite/grafiteAstPp.ml b/components/grafite/grafiteAstPp.ml
index d775a77dcdce83bcab4c8a018474bc7870a5bf17..f38dbf8597dc3caa309f5fb60c45f30f5dc4d40d 100644 (file)
--- a/components/grafite/grafiteAstPp.ml
+++ b/components/grafite/grafiteAstPp.ml
@@ -44,6 +44,7 @@ let pp_reduction_kind ~term_pp = function
   | `Whd -> "whd"
  
 let pp_tactic_pattern ~term_pp ~lazy_term_pp (what, hyp, goal) = 
+  if what = None && hyp = [] && goal = None then "" else 
   let what_text =
     match what with
     | None -> ""
@@ -74,7 +75,7 @@ let rec pp_tactic ~term_pp ~lazy_term_pp =
   let pp_tactic_pattern = pp_tactic_pattern ~lazy_term_pp ~term_pp in
   function
   | Absurd (_, term) -> "absurd" ^ term_pp term
-  | Apply (_, term) -> "apply " ^ term_pp term
+  | Apply (_, term) -> "apply (" ^ term_pp term ^ ")" (* FG: rm parentheses *)
   | ApplyS (_, term, params) ->
      "applyS " ^ term_pp term ^
       String.concat " " 
@@ -92,7 +93,7 @@ let rec pp_tactic ~term_pp ~lazy_term_pp =
   | Constructor (_,n) -> "constructor " ^ string_of_int n
   | Contradiction _ -> "contradiction"
   | Cut (_, ident, term) ->
-     "cut " ^ term_pp term ^
+     "cut (" ^ term_pp term ^ ")" ^ (* FG: rm parentheses *)
       (match ident with None -> "" | Some id -> " as " ^ id)
   | Decompose (_, [], what, names) ->
       sprintf "decompose %s%s" (opt_string_pp what) (pp_intros_specs (None, names)) 
@@ -106,7 +107,7 @@ let rec pp_tactic ~term_pp ~lazy_term_pp =
   | Demodulate _ -> "demodulate"
   | Destruct (_, term) -> "destruct " ^ term_pp term
   | Elim (_, term, using, num, idents) ->
-      sprintf "elim " ^ term_pp term ^
+      sprintf "elim (" ^ term_pp term ^ ")" ^ (* FG: rm parentheses *)
       (match using with None -> "" | Some term -> " using " ^ term_pp term)
       ^ pp_intros_specs (num, idents) 
   | ElimType (_, term, using, num, idents) ->
@@ -142,17 +143,21 @@ let rec pp_tactic ~term_pp ~lazy_term_pp =
         (match terms with [] -> "" | _ -> " to " ^ terms_pp ~term_pp terms)
         (match ident_opt with None -> "" | Some ident -> " as " ^ ident)
   | Left _ -> "left"
-  | LetIn (_, term, ident) -> sprintf "letin %s \\def %s" ident (term_pp term)
+  | LetIn (_, term, ident) -> 
+     sprintf "letin %s \\def %s" ident ("(" ^ term_pp term ^ ")") (* FG: rm parentheses *)
   | Reduce (_, kind, pat) ->
       sprintf "%s %s" (pp_reduction_kind kind) (pp_tactic_pattern pat)
   | Reflexivity _ -> "reflexivity"
+  | Rename (_, froms, tos) -> 
+     sprintf "rename %s as %s" (pp_idents froms) (pp_idents tos)
   | Replace (_, pattern, t) ->
       sprintf "replace %s with %s" (pp_tactic_pattern pattern) (lazy_term_pp t)
-  | Rewrite (_, pos, t, pattern) -> 
-      sprintf "rewrite %s %s %s" 
+  | Rewrite (_, pos, t, pattern, names) -> 
+      sprintf "rewrite %s %s %s%s" 
         (if pos = `LeftToRight then ">" else "<")
-        (term_pp t)
+        ("(" ^ term_pp t ^ ")") (* FG: rm parentheses *)
         (pp_tactic_pattern pattern)
+       (if names = [] then "" else " as " ^ pp_idents names)
   | Right _ -> "right"
   | Ring _ -> "ring"
   | Split _ -> "split"