X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=helm%2Focaml%2Fcic_disambiguation%2FcicTextualParser2.ml;h=397d038678839f00941803ffa830c7c6af27d645;hb=97790db29ad0dc3d31e61acc69894aa5e6109a9e;hp=d60e563786b29dce42d2edc10a545dcab87cb1a0;hpb=8004125685a99b6c0f2f95fd7f3fa09a4f5c9094;p=helm.git

diff --git a/helm/ocaml/cic_disambiguation/cicTextualParser2.ml b/helm/ocaml/cic_disambiguation/cicTextualParser2.ml
index d60e56378..397d03867 100644
--- a/helm/ocaml/cic_disambiguation/cicTextualParser2.ml
+++ b/helm/ocaml/cic_disambiguation/cicTextualParser2.ml
@@ -35,20 +35,29 @@ open Printf
 
 exception Parse_error of string
 
-let grammar = Grammar.gcreate CicTextualLexer2.lex
+let choice_of_uri (uri: string) =
+  let cic = HelmLibraryObjects.term_of_uri (UriManager.uri_of_string uri) in
+  (uri, (fun _ _ _ -> cic))
+
+let grammar = Grammar.gcreate CicTextualLexer2.cic_lexer
 
 let term = Grammar.Entry.create grammar "term"
+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;
+  GLOBAL: term term0;
   meta_subst: [
     [ s = SYMBOL "_" -> None
     | t = term -> Some t ]
@@ -60,65 +69,79 @@ 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 [
         SYMBOL "\subst";  (* to avoid catching frequent "a [1]" cases *)
-        LPAREN "[";
+        PAREN "[";
         substs = LIST1 [
           i = IDENT; SYMBOL <:unicode<Assign>> (* ≔ *); t = term -> (i, t)
         ] SEP SYMBOL ";";
-        RPAREN "]" ->
+        PAREN "]" ->
           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]
-    | LPAREN "("; names = LIST1 name; RPAREN ")" -> 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))
-      ]
-    | "eq" LEFTA
-      [ t1 = term; SYMBOL "="; t2 = term ->
-        return_term loc (CicTextualParser2Ast.Appl_symbol ("eq", 0, [t1; t2]))
+          return_term loc
+            (CicAst.Binder (`Pi, (Cic.Anonymous, Some t1), t2))
       ]
-    | "add" LEFTA     [ (* nothing here by default *) ]
-    | "mult" LEFTA    [ (* nothing here by default *) ]
-    | "inv" NONA      [ (* nothing here by default *) ]
-    | "simple" NONA
+    | "binder" RIGHTA
       [
-        (* TODO handle "_" *)
         b = binder; vars = LIST1 IDENT SEP SYMBOL ",";
         typ = OPT [ SYMBOL ":"; t = term -> t ];
         SYMBOL "."; body = term ->
           let binder =
             List.fold_right
-              (fun var body -> CicTextualParser2Ast.Binder (b, Cic.Name var, typ, body))
+              (fun var body ->
+                let name = name_of_string var in
+                CicAst.Binder (b, (name, typ), body))
               vars body
           in
           return_term loc binder
-      | sort_kind = [
+      ]
+    | "eq" LEFTA
+      [ t1 = term; SYMBOL "="; t2 = term ->
+        return_term loc (CicAst.Appl [CicAst.Symbol ("eq", 0); t1; t2])
+      ]
+    | "add" LEFTA     [ (* nothing here by default *) ]
+    | "mult" LEFTA    [ (* nothing here by default *) ]
+    | "inv" NONA      [ (* nothing here by default *) ]
+    | "simple" NONA
+      [
+        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
-      | LPAREN "("; head = term; args = LIST1 term; RPAREN ")" ->
-          return_term loc (CicTextualParser2Ast.Appl (head :: args))
-      | i = NUM -> return_term loc (CicTextualParser2Ast.Num (i, 0))
-(*       | i = NUM -> return_term loc (CicTextualParser2Ast.Num (i, Random.int max_int)) *)
+      | PAREN "("; head = term; args = LIST1 term; PAREN ")" ->
+          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 = [
-          LPAREN "["; substs = LIST0 meta_subst SEP SYMBOL ";" ; RPAREN "]" ->
+          PAREN "["; substs = LIST0 meta_subst SEP SYMBOL ";" ; PAREN "]" ->
             substs
         ] ->
             let index =
@@ -127,43 +150,122 @@ 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; SYMBOL <:unicode<def>> (* ≝ *); t1 = term;
+      | "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;
-          index = OPT [ LPAREN "("; index = INT; RPAREN ")" ->
-            int_of_string index
-          ];
-          typ = OPT [ SYMBOL ":"; typ = term -> typ ];
-          SYMBOL <:unicode<def>> (* ≝ *); t1 = term ->
-            (name, t1, typ, (match index with None -> 1 | Some i -> i))
-        ] SEP (IDENT "and");
-        IDENT "in"; body = term ->
-          return_term loc (CicTextualParser2Ast.LetRec (ind_kind, defs, body))
-      | outtyp = OPT [ LPAREN "["; typ = term; RPAREN "]" -> typ ];
+            var = typed_name;
+            index = OPT [ PAREN "("; index = NUM; PAREN ")" ->
+              int_of_string index
+            ];
+(*             SYMBOL <:unicode<def>> (* ≝ *); *)
+            SYMBOL "=";
+            t1 = term ->
+              (var, t1, (match index with None -> 0 | Some i -> i))
+          ] SEP (IDENT "and");
+          IDENT "in"; body = term ->
+            return_term loc (CicAst.LetRec (ind_kind, defs, body))
+      | outtyp = OPT [ PAREN "["; typ = term; PAREN "]" -> typ ];
         "match"; t = term;
         SYMBOL ":"; indty = IDENT;
         "with";
-        LPAREN "[";
+        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 "|";
-        RPAREN "]" ->
-          return_term loc (CicTextualParser2Ast.Case (t, indty, outtyp, patterns))
-      | LPAREN "("; t = term; RPAREN ")" -> return_term loc t
+        PAREN "]" ->
+          return_term loc
+            (CicAst.Case (t, indty, outtyp, patterns))
+      | PAREN "("; t = term; PAREN ")" -> return_term loc t
       ]
     ];
 END
 
 let parse_term stream =
   try
-    Grammar.Entry.parse term stream
+    Grammar.Entry.parse term0 stream
   with Stdpp.Exc_located ((x, y), exn) ->
     raise (Parse_error (sprintf "parse error at characters %d-%d: %s" x y
         (Printexc.to_string exn)))
 
+(**/**)
+
+(** {2 Interface for gTopLevel} *)
+
+open DisambiguateTypes
+
+module EnvironmentP3 =
+  struct
+    type t = environment
+
+    let empty = ""
+
+    let aliases_grammar = Grammar.gcreate CicTextualLexer2.cic_lexer
+    let aliases = Grammar.Entry.create aliases_grammar "aliases"
+
+    let to_string env =
+      let aliases =
+        Environment.fold
+          (fun domain_item (dsc, _) acc ->
+            let s =
+              match domain_item with
+              | Id id -> sprintf "alias id %s = %s" id dsc
+              | Symbol (symb, instance) ->
+                  sprintf "alias symbol \"%s\" (instance %d) = \"%s\""
+                    symb instance dsc
+              | Num instance ->
+                  sprintf "alias num (instance %d) = \"%s\"" instance dsc
+            in
+            s :: acc)
+          env []
+      in
+      String.concat "\n" (List.sort compare aliases)
+
+    EXTEND
+      GLOBAL: aliases;
+      aliases: [  (* build an environment from an aliases list *)
+        [ aliases = LIST0 alias; EOI ->
+            List.fold_left
+              (fun env (domain_item, codomain_item) ->
+                Environment.add domain_item codomain_item env)
+              Environment.empty aliases
+        ]
+      ];
+      alias: [  (* return a pair <domain_item, codomain_item> from an alias *)
+        [ IDENT "alias";
+          choice =
+            [ IDENT "id"; id = IDENT; SYMBOL "="; uri = URI ->
+                (Id id, choice_of_uri uri)
+            | IDENT "symbol"; symbol = QSTRING;
+              PAREN "("; IDENT "instance"; instance = NUM; PAREN ")";
+              SYMBOL "="; dsc = QSTRING ->
+                (Symbol (symbol, int_of_string instance),
+                 DisambiguateChoices.lookup_symbol_by_dsc symbol dsc)
+            | IDENT "num";
+              PAREN "("; IDENT "instance"; instance = NUM; PAREN ")";
+              SYMBOL "="; dsc = QSTRING ->
+                (Num (int_of_string instance),
+                 DisambiguateChoices.lookup_num_by_dsc dsc)
+            ] -> choice ]
+      ];
+    END
+
+    let of_string s =
+      if s = empty then
+        Environment.empty
+      else
+        try
+          Grammar.Entry.parse aliases (Stream.of_string s)
+        with Stdpp.Exc_located ((x, y), exn) ->
+          raise (Parse_error (sprintf "parse error at characters %d-%d: %s" x y
+          (Printexc.to_string exn)))
+  end
+