* http://helm.cs.unibo.it/
*)
-let debug = true
+let debug = false
let debug_print s =
if debug then begin
prerr_endline "<NEW_TEXTUAL_PARSER>";
* thus be interpreted differently than others *)
let use_fresh_num_instances = false
+ (** does the lexer return COMMENT tokens? *)
+let return_comments = false
+
open Printf
open DisambiguateTypes
exception Parse_error of Token.flocation * string
+let cic_lexer = CicTextualLexer2.cic_lexer ~comments:return_comments ()
+
let fresh_num_instance =
let n = ref 0 in
if use_fresh_num_instances then
let term = CicUtil.term_of_uri uri in
(uri, (fun _ _ _ -> term))
-let grammar = Grammar.gcreate CicTextualLexer2.cic_lexer
+let grammar = Grammar.gcreate cic_lexer
let term = Grammar.Entry.create grammar "term"
let term0 = Grammar.Entry.create grammar "term0"
| "_" -> Cic.Anonymous
| s -> Cic.Name s
+let string_of_name = function
+ | Cic.Anonymous -> "_"
+ | Cic.Name s -> s
+
let int_opt = function
| None -> None
| Some lexeme -> Some (int_of_string lexeme)
];
typed_name: [
[ PAREN "("; i = IDENT; SYMBOL ":"; typ = term; PAREN ")" ->
- (name_of_string i, Some typ)
- | i = IDENT -> (name_of_string i, None)
+ (Cic.Name i, Some typ)
+ | i = IDENT -> (Cic.Name i, None)
]
];
subst: [
(head, vars)
]
];
+ let_defs:[
+ [ defs = LIST1 [
+ name = IDENT;
+ args = LIST1 [
+ PAREN "(" ; names = LIST1 IDENT SEP SYMBOL ","; SYMBOL ":";
+ ty = term; PAREN ")" ->
+ (names, ty)
+ ];
+ index_name = OPT [ IDENT "on"; idx = IDENT -> idx ];
+ ty = OPT [ SYMBOL ":" ; t = term -> t ];
+ SYMBOL <:unicode<def>> (* ≝ *);
+ t1 = term ->
+ let rec list_of_binder binder ty final_term = function
+ | [] -> final_term
+ | name::tl ->
+ CicAst.Binder (binder, (Cic.Name name, Some ty),
+ list_of_binder binder ty final_term tl)
+ in
+ let rec binder_of_arg_list binder final_term = function
+ | [] -> final_term
+ | (l,ty)::tl ->
+ list_of_binder binder ty
+ (binder_of_arg_list binder final_term tl) l
+ in
+ let t1' = binder_of_arg_list `Lambda t1 args in
+ let ty' =
+ match ty with
+ | None -> None
+ | Some ty -> Some (binder_of_arg_list `Pi ty args)
+ in
+ let rec get_position_of name n = function
+ | [] -> (None,n)
+ | nam::tl ->
+ if nam = name then
+ (Some n,n)
+ else
+ (get_position_of name (n+1) tl)
+ in
+ let rec find_arg name n = function
+ | [] -> (fail loc (sprintf "Argument %s not found" name))
+ | (l,_)::tl ->
+ let (got,len) = get_position_of name 0 l in
+ (match got with
+ | None -> (find_arg name (n+len) tl)
+ | Some where -> n + where)
+ in
+ let index =
+ (match index_name with
+ | None -> 0
+ | (Some name) -> find_arg name 0 args)
+ in
+ ((Cic.Name name,ty'), t1', index)
+ ] SEP "and" -> defs
+ ]];
constructor: [ [ name = IDENT; SYMBOL ":"; typ = term -> (name, typ) ] ];
term0: [ [ t = term; EOI -> return_term loc t ] ];
term:
[ "letin" NONA
[ "let"; var = typed_name;
- SYMBOL "="; (* SYMBOL <:unicode<def>> (* ≝ *); *)
+ SYMBOL <:unicode<def>> (* ≝ *);
t1 = term; "in"; t2 = term ->
return_term loc (CicAst.LetIn (var, t1, t2))
| "let"; ind_kind = [ "corec" -> `CoInductive | "rec"-> `Inductive ];
- defs = LIST1 [
- var = typed_name;
- index = OPT [ PAREN "("; index = NUM; PAREN ")" ->
- int_of_string index
- ];
- SYMBOL "="; (* SYMBOL <:unicode<def>> (* ≝ *); *)
- t1 = term ->
- (var, t1, (match index with None -> 0 | Some i -> i))
- ] SEP "and";
- "in"; body = term ->
+ defs = let_defs; "in"; body = term ->
return_term loc (CicAst.LetRec (ind_kind, defs, body))
]
| "binder" RIGHTA
"with";
PAREN "[";
patterns = LIST0 [
- lhs = pattern; SYMBOL <:unicode<Rightarrow>> (* ⇒ *); rhs = term ->
+ lhs = pattern; SYMBOL <:unicode<Rightarrow>> (* ⇒ *); rhs = term
+ ->
((lhs: CicAst.case_pattern), rhs)
] SEP SYMBOL "|";
PAREN "]" ->
let ind_types = fst_ind_type :: tl_ind_types in
(params, ind_types)
] ];
+ print_kind: [
+ [ [ IDENT "Env" | IDENT "env" | IDENT "Environment" | IDENT "environment" ]
+ -> `Env
+ | [ IDENT "Coer" | IDENT "coer" | IDENT "Coercions" | IDENT "coercions" ]
+ -> `Coer
+ ] ];
+
command: [
[ [ IDENT "abort" | IDENT "Abort" ] -> return_command loc TacticAst.Abort
| [ IDENT "proof" | IDENT "Proof" ] -> return_command loc TacticAst.Proof
| [ IDENT "quit" | IDENT "Quit" ] -> return_command loc TacticAst.Quit
| [ IDENT "qed" | IDENT "Qed" ] ->
return_command loc (TacticAst.Qed None)
+ | [ IDENT "print" | IDENT "Print" ];
+ print_kind = print_kind ->
+ return_command loc (TacticAst.Print print_kind)
| [ IDENT "save" | IDENT "Save" ]; name = IDENT ->
return_command loc (TacticAst.Qed (Some name))
| 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))
+ | "let"; ind_kind = [ "corec" -> `CoInductive | "rec"-> `Inductive ];
+ defs = let_defs ->
+ let name,ty =
+ match defs with
+ | ((Cic.Name name,Some ty),_,_) :: _ -> name,ty
+ | ((Cic.Name name,None),_,_) :: _ ->
+ fail loc ("No type given for " ^ name)
+ | _ -> assert false
+ in
+ let body = CicAst.Ident (name,None) in
+ TacticAst.Theorem(`Definition, Some name, ty,
+ Some (CicAst.LetRec (ind_kind, defs, body)))
+
| [ IDENT "inductive" | IDENT "Inductive" ]; spec = inductive_spec ->
let (params, ind_types) = spec in
return_command loc (TacticAst.Inductive (params, ind_types))
return_command loc (TacticAst.Redo (int_opt steps))
| [ IDENT "baseuri" | IDENT "Baseuri" ]; uri = OPT QSTRING ->
return_command loc (TacticAst.Baseuri uri)
+ | [ IDENT "basedir" | IDENT "Basedir" ]; uri = OPT QSTRING ->
+ return_command loc (TacticAst.Basedir uri)
| [ IDENT "check" | IDENT "Check" ]; t = term ->
return_command loc (TacticAst.Check t)
(*
];
script_entry: [
[ cmd = tactical0 -> Command cmd
- | s = COMMENT -> Comment (loc, s)
+(* | s = COMMENT -> Comment (loc, s) *)
]
];
script: [ [ entries = LIST0 script_entry; EOI -> (loc, entries) ] ];
let empty = ""
- let aliases_grammar = Grammar.gcreate CicTextualLexer2.cic_lexer
+ let aliases_grammar = Grammar.gcreate cic_lexer
let aliases = Grammar.Entry.create aliases_grammar "aliases"
let to_string env =
projects / helm.git / blobdiff