From: Andrea Asperti <andrea.asperti@unibo.it>
Date: Fri, 10 Dec 2010 11:24:14 +0000 (+0000)
Subject: New syntax -H1 .. Hn for clear
X-Git-Tag: make_still_working~2659
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=3a5ad4a99fd7f312424200a9241ea1a4ce7fcd29;p=helm.git

New syntax -H1 .. Hn for clear
---

diff --git a/matita/components/grafite/grafiteAst.ml b/matita/components/grafite/grafiteAst.ml
index e251ae557..32a29c215 100644
--- a/matita/components/grafite/grafiteAst.ml
+++ b/matita/components/grafite/grafiteAst.ml
@@ -41,6 +41,7 @@ type ntactic =
    | NCases of loc * NotationPt.term * npattern  
    | NCase1 of loc * string
    | NChange of loc * npattern * NotationPt.term
+   | NClear of loc * string list
    | NConstructor of loc * int option * NotationPt.term list
    | NCut of loc * NotationPt.term
 (* | NDiscriminate of loc * NotationPt.term
diff --git a/matita/components/grafite/grafiteAstPp.ml b/matita/components/grafite/grafiteAstPp.ml
index bd846248b..c20a5d8c3 100644
--- a/matita/components/grafite/grafiteAstPp.ml
+++ b/matita/components/grafite/grafiteAstPp.ml
@@ -75,6 +75,7 @@ let rec pp_ntactic ~map_unicode_to_tex =
   | NCut (_,t) -> "ncut " ^ NotationPp.pp_term t
 (*| NDiscriminate (_,t) -> "ndiscriminate " ^ NotationPp.pp_term t
   | NSubst (_,t) -> "nsubst " ^ NotationPp.pp_term t *)
+  | NClear (_,l) -> "nclear " ^ String.concat " " l
   | NDestruct (_,dom,skip) -> "ndestruct ..." 
   | NElim (_,what,where) -> "nelim " ^ NotationPp.pp_term what ^
       "...to be implemented..." ^ " " ^ "...to be implemented..."
diff --git a/matita/components/grafite_engine/grafiteEngine.ml b/matita/components/grafite_engine/grafiteEngine.ml
index a9a46e743..79391193d 100644
--- a/matita/components/grafite_engine/grafiteEngine.ml
+++ b/matita/components/grafite_engine/grafiteEngine.ml
@@ -343,6 +343,7 @@ let eval_ng_tac tac =
   | GrafiteAst.NCut (_loc, t) -> NTactics.cut_tac (text,prefix_len,t) 
 (*| GrafiteAst.NDiscriminate (_,what) -> NDestructTac.discriminate_tac ~what:(text,prefix_len,what)
   | GrafiteAst.NSubst (_,what) -> NDestructTac.subst_tac ~what:(text,prefix_len,what)*)
+  | GrafiteAst.NClear (_loc, l) -> NTactics.clear_tac l
   | GrafiteAst.NDestruct (_,dom,skip) -> NDestructTac.destruct_tac dom skip
   | GrafiteAst.NDot _ -> NTactics.dot_tac 
   | GrafiteAst.NElim (_loc, what, where) ->
diff --git a/matita/components/grafite_parser/grafiteParser.ml b/matita/components/grafite_parser/grafiteParser.ml
index bdd65f34d..5873d29c7 100644
--- a/matita/components/grafite_parser/grafiteParser.ml
+++ b/matita/components/grafite_parser/grafiteParser.ml
@@ -218,6 +218,8 @@ EXTEND
         G.NTactic(loc,[G.NCases (loc, what, where)])
     | IDENT "change"; what = pattern_spec; "with"; with_what = tactic_term -> 
         G.NTactic(loc,[G.NChange (loc, what, with_what)])
+    | SYMBOL "-"; ids = LIST1 IDENT ->
+        G.NTactic(loc,[G.NClear (loc, ids)])
     | (*SYMBOL "^"*)PLACEHOLDER; num = OPT NUMBER; 
 	l = OPT [ SYMBOL "{"; l = LIST1 tactic_term; SYMBOL "}" -> l ] -> 
         G.NTactic(loc,[G.NConstructor (loc, (match num with None -> None | Some x -> Some (int_of_string x)),match l with None -> [] | Some l -> l)])