X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=components%2Fgrafite%2FgrafiteAstPp.ml;h=183fc5ec464ca725ccd4b6b54b591ad326478d70;hb=74c1bd57ab62eff5489758546baf8a9610a3c172;hp=0704863f5a779ee28282863c16b38741221ee6a6;hpb=eaaf765efc197fa503f05d530e86347d07d138e9;p=helm.git

diff --git a/components/grafite/grafiteAstPp.ml b/components/grafite/grafiteAstPp.ml
index 0704863f5..183fc5ec4 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 +143,19 @@ 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 "let %s in %s" (term_pp term) ident
+  | 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"
   | 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 +169,7 @@ 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
@@ -194,8 +200,9 @@ let pp_arg ~term_pp arg =
 let pp_macro ~term_pp = 
   let term_pp = pp_arg ~term_pp in
   let style_pp = function
-     | Declarative -> ""
-     | Procedural -> "procedural "
+     | Declarative         -> ""
+     | Procedural None     -> "procedural "
+     | Procedural (Some i) -> sprintf "procedural %u " i
   in
   let prefix_pp prefix = 
      if prefix = "" then "" else sprintf " \"%s\"" prefix
@@ -298,6 +305,7 @@ let pp_executable ~term_pp ~lazy_term_pp ~obj_pp =
                       
 let pp_comment ~term_pp ~lazy_term_pp ~obj_pp =
   function
+  | Note (_,"") -> sprintf "\n"
   | Note (_,str) -> sprintf "(* %s *)\n" str
   | Code (_,code) ->
       sprintf "(** %s. **)\n" (pp_executable ~term_pp ~lazy_term_pp ~obj_pp code)