X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=components%2Fgrafite%2FgrafiteAstPp.ml;h=ce9ea017b2c1565d6b82302e75f8d1582188a9b4;hb=42f43b29d87e84825a3f6a65674dc30cd670333f;hp=840c16351f86823aeef0bc25d18acda1fcdd1b30;hpb=41a5e709636f77a7ebc7a878834373590c8b321d;p=helm.git

diff --git a/components/grafite/grafiteAstPp.ml b/components/grafite/grafiteAstPp.ml
index 840c16351..ce9ea017b 100644
--- 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 -> ""
@@ -83,6 +84,8 @@ let rec pp_tactic ~term_pp ~lazy_term_pp =
       String.concat " " 
         (List.map (fun (k,v) -> if v <> "" then k ^ "=" ^ v else k) params)
   | Assumption _ -> "assumption"
+  | Cases (_, term, idents) -> sprintf "cases " ^ term_pp term ^
+      pp_intros_specs (None, idents) 
   | Change (_, where, with_what) ->
       sprintf "change %s with %s" (pp_tactic_pattern where) (lazy_term_pp with_what)
   | Clear (_,ids) -> sprintf "clear %s" (pp_idents ids)
@@ -140,17 +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)
   | 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)
         (pp_tactic_pattern pattern)
+	(if names = [] then "" else " as " ^ pp_idents names)
   | Right _ -> "right"
   | Ring _ -> "ring"
   | Split _ -> "split"
@@ -164,6 +171,7 @@ let rec pp_tactic ~term_pp ~lazy_term_pp =
   | By_term_we_proved (_, term, term1, ident, term2) -> "by" ^ (match term with None -> "_" | Some term -> term_pp term)  ^ "we proved" ^ term_pp term1 ^ (match ident with None -> "" | Some ident -> "(" ^ident^ ")") ^
        (match term2 with  None -> " " | Some term2 -> term_pp term2)
   | We_need_to_prove (_, term, ident, term1) -> "we need to prove" ^ term_pp term ^ (match ident with None -> "" | Some ident -> "(" ^ ident ^ ")") ^ (match term1 with None -> " " | Some term1 -> term_pp term1)
+  | We_proceed_by_cases_on (_, term, term1) -> "we proceed by cases on" ^ term_pp term ^ "to prove" ^ term_pp term1
   | We_proceed_by_induction_on (_, term, term1) -> "we proceed by induction on" ^ term_pp term ^ "to prove" ^ term_pp term1
   | Byinduction (_, term, ident) -> "by induction hypothesis we know" ^ term_pp term ^ "(" ^ ident ^ ")"
   | Thesisbecomes (_, term) -> "the thesis becomes " ^ term_pp term