procedural : some improvements.

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

diff --git a/components/grafite/grafiteAstPp.ml b/components/grafite/grafiteAstPp.ml
index 0530697ada6b252b580405a4837ef7eca0e5eb68..423e68d4f93ce30e5d77e82cb761eeab9fbcaffe 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 -> ""
@@ -94,15 +95,8 @@ let rec pp_tactic ~term_pp ~lazy_term_pp =
   | Cut (_, ident, term) ->
      "cut " ^ term_pp term ^
       (match ident with None -> "" | Some id -> " as " ^ id)
-  | Decompose (_, [], what, names) ->
-      sprintf "decompose %s%s" (opt_string_pp what) (pp_intros_specs (None, names)) 
-  | Decompose (_, types, what, names) ->
-      let to_ident = function
-         | Ident id -> id
-        | Type _   -> assert false 
-      in
-      let types = List.rev_map to_ident types in
-      sprintf "decompose %s %s%s" (pp_idents types) (opt_string_pp what) (pp_intros_specs (None, names)) 
+  | Decompose (_, names) ->
+      sprintf "decompose%s" (pp_intros_specs (None, names)) 
   | Demodulate _ -> "demodulate"
   | Destruct (_, term) -> "destruct " ^ term_pp term
   | Elim (_, term, using, num, idents) ->
@@ -142,17 +136,19 @@ 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 "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"
   | 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"
@@ -166,6 +162,7 @@ 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
@@ -196,8 +193,9 @@ 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
@@ -296,7 +294,7 @@ let pp_executable ~term_pp ~lazy_term_pp ~obj_pp =
       pp_tactical ~lazy_term_pp ~term_pp tac
       ^ pp_tactical ~lazy_term_pp ~term_pp punct
   | Tactical (_, tac, None) -> pp_tactical ~lazy_term_pp ~term_pp tac
-  | Command (_, cmd) -> pp_command ~term_pp ~obj_pp cmd ^ "."
+  | Command (_, cmd) -> pp_command ~term_pp ~obj_pp cmd ^ ".\n"
                       
 let pp_comment ~term_pp ~lazy_term_pp ~obj_pp =
   function