open Printf
open DisambiguateTypes
-exception Parse_error of string
+exception Parse_error of Token.flocation * string
let fresh_num_instance =
let n = ref 0 in
else
(fun () -> 0)
-let choice_of_uri (uri: string) =
- let cic = HelmLibraryObjects.term_of_uri (UriManager.uri_of_string uri) in
- (uri, (fun _ _ _ -> cic))
+let choice_of_uri uri =
+ let term = CicUtil.term_of_uri uri in
+ (uri, (fun _ _ _ -> term))
let grammar = Grammar.gcreate CicTextualLexer2.cic_lexer
let return_tactical loc tactical = TacticAst.LocatedTactical (loc, tactical)
let return_command loc cmd = cmd
-let fail (x, y) msg =
+let fail floc msg =
+ let (x, y) = CicAst.loc_of_floc floc in
failwith (Printf.sprintf "Error at characters %d - %d: %s" x y msg)
let name_of_string = function
| "_" -> Cic.Anonymous
| s -> Cic.Name s
+let int_opt = function
+ | None -> None
+ | Some lexeme -> Some (int_of_string lexeme)
+
EXTEND
GLOBAL: term term0 tactic tactical tactical0 command;
int: [
[ num = NUM ->
try
int_of_string num
- with Failure _ ->
- let (x, y) = loc in
- raise (Parse_error (sprintf
- "integer literal expected at characters %d-%d" x y))
+ with Failure _ -> raise (Parse_error (loc, "integer literal expected"))
]
];
meta_subst: [
]
];
substituted_name: [ (* a subs.name is an explicit substitution subject *)
- [ s = [ IDENT | SYMBOL ];
+ [ s = IDENT;
subst = OPT [
- SYMBOL "\subst"; (* to avoid catching frequent "a [1]" cases *)
+ SYMBOL "\\subst"; (* to avoid catching frequent "a [1]" cases *)
PAREN "[";
substs = LIST1 [
i = IDENT; SYMBOL <:unicode<Assign>> (* ≔ *); t = term -> (i, t)
(head, vars)
]
];
+ constructor: [ [ name = IDENT; SYMBOL ":"; typ = term -> (name, typ) ] ];
term0: [ [ t = term; EOI -> return_term loc t ] ];
term:
[ "letin" NONA
- (* actually "in" and "and" are _not_ keywords. Parsing works anyway
- * since applications are required to be bound by parens *)
[ "let"; var = typed_name;
SYMBOL "="; (* SYMBOL <:unicode<def>> (* ≝ *); *)
- t1 = term;
- IDENT "in"; t2 = term ->
+ t1 = term; "in"; t2 = term ->
return_term loc (CicAst.LetIn (var, t1, t2))
| "let"; ind_kind = [ "corec" -> `CoInductive | "rec"-> `Inductive ];
defs = LIST1 [
SYMBOL "="; (* SYMBOL <:unicode<def>> (* ≝ *); *)
t1 = term ->
(var, t1, (match index with None -> 0 | Some i -> i))
- ] SEP (IDENT "and");
- IDENT "in"; body = term ->
+ ] SEP "and";
+ "in"; body = term ->
return_term loc (CicAst.LetRec (ind_kind, defs, body))
]
| "binder" RIGHTA
| "mult" LEFTA [ (* nothing here by default *) ]
| "power" LEFTA [ (* nothing here by default *) ]
| "inv" NONA [ (* nothing here by default *) ]
+ | "apply" LEFTA
+ [ t1 = term; t2 = term ->
+ let rec aux = function
+ | CicAst.Appl (hd :: tl) -> aux hd @ tl
+ | term -> [term]
+ in
+ CicAst.Appl (aux t1 @ [t2])
+ ]
| "simple" NONA
[ sort = sort -> CicAst.Sort sort
| n = substituted_name -> return_term loc n
- | PAREN "("; head = term; args = LIST1 term; PAREN ")" ->
- return_term loc (CicAst.Appl (head :: args))
| i = NUM -> return_term loc (CicAst.Num (i, (fresh_num_instance ())))
| IMPLICIT -> return_term loc CicAst.Implicit
| m = META;
]
];
tactic_where: [
- [ where = OPT [ IDENT "in"; ident = IDENT -> ident ] -> where ]
+ [ where = OPT [ "in"; ident = IDENT -> ident ] -> where ]
];
tactic_term: [ [ t = term -> t ] ];
ident_list0: [
[ PAREN "["; idents = LIST1 IDENT SEP SYMBOL ";"; PAREN "]" -> idents ]
];
reduction_kind: [
- [ "reduce" -> `Reduce
- | "simpl" -> `Simpl
- | "whd" -> `Whd ]
+ [ [ IDENT "reduce" | IDENT "Reduce" ] -> `Reduce
+ | [ IDENT "simplify" | IDENT "Simplify" ] -> `Simpl
+ | [ IDENT "whd" | IDENT "Whd" ] -> `Whd ]
];
tactic: [
- [ [ IDENT "absurd" | IDENT "Absurd" ] -> return_tactic loc TacticAst.Absurd
- | [ IDENT "apply" | IDENT "Apply" ];
- t = tactic_term -> return_tactic loc (TacticAst.Apply t)
+ [ [ IDENT "absurd" | IDENT "Absurd" ]; t = tactic_term ->
+ return_tactic loc (TacticAst.Absurd t)
+ | [ IDENT "apply" | IDENT "Apply" ]; t = tactic_term ->
+ return_tactic loc (TacticAst.Apply t)
| [ IDENT "assumption" | IDENT "Assumption" ] ->
return_tactic loc TacticAst.Assumption
+ | [ IDENT "auto" | IDENT "Auto" ] -> return_tactic loc TacticAst.Auto
| [ IDENT "change" | IDENT "Change" ];
t1 = tactic_term; "with"; t2 = tactic_term;
where = tactic_where ->
| [ IDENT "discriminate" | IDENT "Discriminate" ];
hyp = IDENT ->
return_tactic loc (TacticAst.Discriminate hyp)
- | [ IDENT "elim" | IDENT "Elim" ]; IDENT "type";
- t = tactic_term ->
+ | [ IDENT "elimType" | IDENT "ElimType" ]; t = tactic_term ->
return_tactic loc (TacticAst.ElimType t)
| [ IDENT "elim" | IDENT "Elim" ];
t1 = tactic_term;
return_tactic loc (TacticAst.Fold (kind, t))
| [ IDENT "fourier" | IDENT "Fourier" ] ->
return_tactic loc TacticAst.Fourier
+ | [ IDENT "hint" | IDENT "Hint" ] -> return_tactic loc TacticAst.Hint
| [ IDENT "injection" | IDENT "Injection" ]; ident = IDENT ->
return_tactic loc (TacticAst.Injection ident)
| [ IDENT "intros" | IDENT "Intros" ];
idents = OPT ident_list0 ->
let idents = match idents with None -> [] | Some idents -> idents in
return_tactic loc (TacticAst.Intros (num, idents))
+ | [ IDENT "intro" | IDENT "Intro" ] ->
+ return_tactic loc (TacticAst.Intros (Some 1, []))
| [ IDENT "left" | IDENT "Left" ] -> return_tactic loc TacticAst.Left
| [ "let" | "Let" ];
- t = tactic_term; IDENT "in"; where = IDENT ->
+ t = tactic_term; "in"; where = IDENT ->
return_tactic loc (TacticAst.LetIn (t, where))
- (* TODO Reduce *)
+ | kind = reduction_kind;
+ pat = OPT [
+ "in"; pat = [ IDENT "goal" -> `Goal | IDENT "hyp" -> `Everywhere ] ->
+ pat
+ ];
+ terms = LIST0 term SEP SYMBOL "," ->
+ let tac =
+ (match (pat, terms) with
+ | None, [] -> TacticAst.Reduce (kind, None)
+ | None, terms -> TacticAst.Reduce (kind, Some (terms, `Goal))
+ | Some pat, [] -> TacticAst.Reduce (kind, Some ([], pat))
+ | Some pat, terms -> TacticAst.Reduce (kind, Some (terms, pat)))
+ in
+ return_tactic loc tac
| [ IDENT "reflexivity" | IDENT "Reflexivity" ] ->
return_tactic loc TacticAst.Reflexivity
| [ IDENT "replace" | IDENT "Replace" ];
return_tactic loc (TacticAst.Transitivity t)
]
];
- tactical0: [ [ t = tactical; SYMBOL "." -> t ] ];
+ tactical0: [ [ t = tactical; SYMBOL ";;" -> return_tactical loc t ] ];
tactical:
[ "command" NONA
[ cmd = command -> return_tactical loc (TacticAst.Command cmd) ]
| flavour = theorem_flavour; name = OPT IDENT; SYMBOL ":"; typ = term;
body = OPT [ SYMBOL <:unicode<def>> (* ≝ *); body = term -> body ] ->
return_command loc (TacticAst.Theorem (flavour, name, typ, body))
+ | [ IDENT "inductive" | IDENT "Inductive" ]; fst_name = IDENT;
+ params = LIST0 [
+ PAREN "("; names = LIST1 IDENT SEP SYMBOL ","; SYMBOL ":";
+ typ = term; PAREN ")" -> (names, typ) ];
+ SYMBOL ":"; fst_typ = term; SYMBOL <:unicode<def>>; OPT SYMBOL "|";
+ fst_constructors = LIST0 constructor SEP SYMBOL "|" ->
+ let params =
+ List.fold_right
+ (fun (names, typ) acc ->
+ (List.map (fun name -> (name, typ)) names) @ acc)
+ params []
+ in
+ let fst_ind_type = (fst_name, true, fst_typ, fst_constructors) in
+ let ind_types = [fst_ind_type] in
+ return_command loc (TacticAst.Inductive (params, ind_types))
| [ IDENT "goal" | IDENT "Goal" ]; typ = term;
body = OPT [ SYMBOL <:unicode<def>> (* ≝ *); body = term -> body ] ->
return_command loc (TacticAst.Theorem (`Goal, None, typ, body))
+ | [ IDENT "undo" | IDENT "Undo" ]; steps = OPT NUM ->
+ return_command loc (TacticAst.Undo (int_opt steps))
+ | [ IDENT "redo" | IDENT "Redo" ]; steps = OPT NUM ->
+ return_command loc (TacticAst.Redo (int_opt steps))
+ | [ IDENT "baseuri" | IDENT "Baseuri" ]; uri = OPT QSTRING ->
+ return_command loc (TacticAst.Baseuri uri)
+ | [ IDENT "check" | IDENT "Check" ]; t = term ->
+ return_command loc (TacticAst.Check t)
]
];
END
let exc_located_wrapper f =
try
- Lazy.force f
- with Stdpp.Exc_located ((x, y), exn) ->
- raise (Parse_error (sprintf "parse error at characters %d-%d: %s" x y
- (Printexc.to_string exn)))
+ f ()
+ with
+ | Stdpp.Exc_located (floc, Stream.Error msg) ->
+ raise (Parse_error (floc, msg))
+ | Stdpp.Exc_located (floc, exn) ->
+ raise (Parse_error (floc, (Printexc.to_string exn)))
let parse_term stream =
- exc_located_wrapper (lazy (Grammar.Entry.parse term0 stream))
+ exc_located_wrapper (fun () -> (Grammar.Entry.parse term0 stream))
let parse_tactic stream =
- exc_located_wrapper (lazy (Grammar.Entry.parse tactic stream))
+ exc_located_wrapper (fun () -> (Grammar.Entry.parse tactic stream))
let parse_tactical stream =
- exc_located_wrapper (lazy (Grammar.Entry.parse tactical0 stream))
+ exc_located_wrapper (fun () -> (Grammar.Entry.parse tactical0 stream))
(**/**)
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)))
+ exc_located_wrapper
+ (fun () -> Grammar.Entry.parse aliases (Stream.of_string s))
end
(* vim:set encoding=utf8: *)
projects / helm.git / blobdiff