moved here CicAst and pretty printer

[helm.git] / helm / ocaml / cic_disambiguation / cicTextualParser2.ml

diff --git a/helm/ocaml/cic_disambiguation/cicTextualParser2.ml b/helm/ocaml/cic_disambiguation/cicTextualParser2.ml
index 507d897fbdea8104181ae767e427e3ed9d3b6957..397d038678839f00941803ffa830c7c6af27d645 100644 (file)
--- a/helm/ocaml/cic_disambiguation/cicTextualParser2.ml
+++ b/helm/ocaml/cic_disambiguation/cicTextualParser2.ml
@@ -46,12 +46,16 @@ let term0 = Grammar.Entry.create grammar "term0"
 (* let tactic = Grammar.Entry.create grammar "tactic" *)
 (* let tactical = Grammar.Entry.create grammar "tactical" *)
 
-let return_term loc term = CicTextualParser2Ast.LocatedTerm (loc, term)
+let return_term loc term = CicAst.AttributedTerm (`Loc loc, term)
 (* let return_term loc term = term *)
 
 let fail (x, y) msg =
   failwith (Printf.sprintf "Error at characters %d - %d: %s" x y msg)
 
+let name_of_string = function
+  | "_" -> Cic.Anonymous
+  | s -> Cic.Name s
+
 EXTEND
   GLOBAL: term term0;
   meta_subst: [
@@ -65,6 +69,12 @@ EXTEND
     | SYMBOL <:unicode<forall>> (* ∀ *) -> `Forall
     ]
   ];
+  typed_name: [
+    [ PAREN "("; i = IDENT; SYMBOL ":"; typ = term; PAREN ")" ->
+        (name_of_string i, Some typ)
+    | i = IDENT -> (name_of_string i, None)
+    ]
+  ];
   substituted_name: [ (* a subs.name is an explicit substitution subject *)
     [ s = [ IDENT | SYMBOL ];
       subst = OPT [
@@ -77,23 +87,25 @@ EXTEND
           substs
       ] ->
         (match subst with
-        | Some l -> CicTextualParser2Ast.Ident (s, l)
-        | None -> CicTextualParser2Ast.Ident (s, []))
+        | Some l -> CicAst.Ident (s, l)
+        | None -> CicAst.Ident (s, []))
     ]
   ];
   name: [ (* as substituted_name with no explicit substitution *)
     [ s = [ IDENT | SYMBOL ] -> s ]
   ];
   pattern: [
-    [ n = name -> [n]
-    | PAREN "("; names = LIST1 name; PAREN ")" -> names ]
+    [ n = name -> (n, [])
+    | PAREN "("; head = name; vars = LIST1 typed_name; PAREN ")" ->
+        (head, vars)
+    ]
   ];
   term0: [ [ t = term -> return_term loc t ] ];
   term:
     [ "arrow" RIGHTA
       [ t1 = term; SYMBOL <:unicode<to>>; t2 = term ->
           return_term loc
-            (CicTextualParser2Ast.Binder (`Pi, Cic.Anonymous, Some t1, t2))
+            (CicAst.Binder (`Pi, (Cic.Anonymous, Some t1), t2))
       ]
     | "binder" RIGHTA
       [
@@ -103,19 +115,15 @@ EXTEND
           let binder =
             List.fold_right
               (fun var body ->
-                let name =
-                  match var with
-                  | "_" -> Cic.Anonymous
-                  | var -> Cic.Name var
-                in
-                CicTextualParser2Ast.Binder (b, name, typ, body))
+                let name = name_of_string var in
+                CicAst.Binder (b, (name, typ), body))
               vars body
           in
           return_term loc binder
       ]
     | "eq" LEFTA
       [ t1 = term; SYMBOL "="; t2 = term ->
-        return_term loc (CicTextualParser2Ast.Appl_symbol ("eq", 0, [t1; t2]))
+        return_term loc (CicAst.Appl [CicAst.Symbol ("eq", 0); t1; t2])
       ]
     | "add" LEFTA     [ (* nothing here by default *) ]
     | "mult" LEFTA    [ (* nothing here by default *) ]
@@ -125,11 +133,12 @@ EXTEND
         sort_kind = [
           "Prop" -> `Prop | "Set" -> `Set | "Type" -> `Type | "CProp" -> `CProp
         ] ->
-          CicTextualParser2Ast.Sort sort_kind
+          CicAst.Sort sort_kind
       | n = substituted_name -> return_term loc n
       | PAREN "("; head = term; args = LIST1 term; PAREN ")" ->
-          return_term loc (CicTextualParser2Ast.Appl (head :: args))
-      | i = NUM -> return_term loc (CicTextualParser2Ast.Num (i, 0))
+          return_term loc (CicAst.Appl (head :: args))
+      | i = NUM -> return_term loc (CicAst.Num (i, 0))
+      | IMPLICIT -> return_term loc CicAst.Implicit
       | m = META;
         substs = [
           PAREN "["; substs = LIST0 meta_subst SEP SYMBOL ";" ; PAREN "]" ->
@@ -141,41 +150,40 @@ EXTEND
               with Failure "int_of_string" ->
                 fail loc ("Invalid meta variable number: " ^ m)
             in
-            return_term loc (CicTextualParser2Ast.Meta (index, substs))
+            return_term loc (CicAst.Meta (index, substs))
         (* actually "in" and "and" are _not_ keywords. Parsing works anyway
          * since applications are required to be bound by parens *)
-      | "let"; name = IDENT;
+      | "let"; var = typed_name;
 (*         SYMBOL <:unicode<def>> (* ≝ *); *)
         SYMBOL "=";
         t1 = term;
         IDENT "in"; t2 = term ->
-          return_term loc (CicTextualParser2Ast.LetIn (name, t1, t2))
+          return_term loc (CicAst.LetIn (var, t1, t2))
       | "let"; ind_kind = [ "corec" -> `CoInductive | "rec"-> `Inductive ];
           defs = LIST1 [
-            name = IDENT;
+            var = typed_name;
             index = OPT [ PAREN "("; index = NUM; PAREN ")" ->
               int_of_string index
             ];
-            typ = OPT [ SYMBOL ":"; typ = term -> typ ];
 (*             SYMBOL <:unicode<def>> (* ≝ *); *)
             SYMBOL "=";
             t1 = term ->
-              (name, t1, typ, (match index with None -> 1 | Some i -> i))
+              (var, t1, (match index with None -> 0 | Some i -> i))
           ] SEP (IDENT "and");
           IDENT "in"; body = term ->
-            return_term loc (CicTextualParser2Ast.LetRec (ind_kind, defs, body))
+            return_term loc (CicAst.LetRec (ind_kind, defs, body))
       | outtyp = OPT [ PAREN "["; typ = term; PAREN "]" -> typ ];
         "match"; t = term;
         SYMBOL ":"; indty = IDENT;
         "with";
         PAREN "[";
         patterns = LIST0 [
-          p = pattern; SYMBOL <:unicode<Rightarrow>> (* ⇒ *); t = term ->
-            (p, t)
+          lhs = pattern; SYMBOL <:unicode<Rightarrow>> (* ⇒ *); rhs = term ->
+            ((lhs: CicAst.case_pattern), rhs)
         ] SEP SYMBOL "|";
         PAREN "]" ->
           return_term loc
-            (CicTextualParser2Ast.Case (t, indty, outtyp, patterns))
+            (CicAst.Case (t, indty, outtyp, patterns))
       | PAREN "("; t = term; PAREN ")" -> return_term loc t
       ]
     ];