LexiconEngine.status ->
LexiconEngine.status * ast_statement localized_option
-let grammar = CicNotationParser.level2_ast_grammar
+type parser_status = {
+ grammar : Grammar.g;
+ term : CicNotationPt.term Grammar.Entry.e;
+ statement : statement Grammar.Entry.e;
+}
-let term = CicNotationParser.term
-let statement = Grammar.Entry.create grammar "statement"
+let initial_parser () =
+ let grammar = CicNotationParser.level2_ast_grammar () in
+ let term = CicNotationParser.term () in
+ let statement = Grammar.Entry.create grammar "statement" in
+ { grammar = grammar; term = term; statement = statement }
+;;
+
+let grafite_parser = ref (initial_parser ())
let add_raw_attribute ~text t = Ast.AttributedTerm (`Raw text, t)
-let default_precedence = 50
let default_associativity = Gramext.NonA
+
+let mk_rec_corec ind_kind defs loc =
+ (* In case of mutual definitions here we produce just
+ the syntax tree for the first one. The others will be
+ generated from the completely specified term just before
+ insertion in the environment. We use the flavour
+ `MutualDefinition to rememer this. *)
+ let name,ty =
+ match defs with
+ | (params,(Ast.Ident (name, None), Some ty),_,_) :: _ ->
+ let ty =
+ List.fold_right
+ (fun var ty -> Ast.Binder (`Pi,var,ty)
+ ) params ty
+ in
+ name,ty
+ | (_,(Ast.Ident (name, None), None),_,_) :: _ ->
+ name, Ast.Implicit
+ | _ -> assert false
+ in
+ let body = Ast.Ident (name,None) in
+ let flavour =
+ if List.length defs = 1 then
+ `Definition
+ else
+ `MutualDefinition
+ in
+ GrafiteAst.Obj (loc, Ast.Theorem(flavour, name, ty,
+ Some (Ast.LetRec (ind_kind, defs, body))))
type by_continuation =
BYC_done
| BYC_letsuchthat of string * CicNotationPt.term * string * CicNotationPt.term
| BYC_wehaveand of string * CicNotationPt.term * string * CicNotationPt.term
+let initialize_parser () =
+ (* {{{ parser initialization *)
+ let term = !grafite_parser.term in
+ let statement = !grafite_parser.statement in
+ let let_defs = CicNotationParser.let_defs () in
+ let protected_binder_vars = CicNotationParser.protected_binder_vars () in
EXTEND
GLOBAL: term statement;
constructor: [ [ name = IDENT; SYMBOL ":"; typ = term -> (name, typ) ] ];
- tactic_term: [ [ t = term LEVEL "90N" -> t ] ];
+ tactic_term: [ [ t = term LEVEL "90" -> t ] ];
new_name: [
[ id = IDENT -> Some id
| SYMBOL "_" -> None ]
tactic: [
[ IDENT "absurd"; t = tactic_term ->
GrafiteAst.Absurd (loc, t)
+ | IDENT "apply"; IDENT "rule"; t = tactic_term ->
+ GrafiteAst.ApplyRule (loc, t)
| IDENT "apply"; t = tactic_term ->
GrafiteAst.Apply (loc, t)
+ | IDENT "applyP"; t = tactic_term ->
+ GrafiteAst.ApplyP (loc, t)
| IDENT "applyS"; t = tactic_term ; params = auto_params ->
GrafiteAst.ApplyS (loc, t, params)
| IDENT "assumption" ->
| IDENT "autobatch"; params = auto_params ->
GrafiteAst.AutoBatch (loc,params)
| IDENT "cases"; what = tactic_term;
+ pattern = OPT pattern_spec;
specs = intros_spec ->
- GrafiteAst.Cases (loc, what, specs)
+ let pattern = match pattern with
+ | None -> None, [], Some Ast.UserInput
+ | Some pattern -> pattern
+ in
+ GrafiteAst.Cases (loc, what, pattern, specs)
| IDENT "clear"; ids = LIST1 IDENT ->
GrafiteAst.Clear (loc, ids)
| IDENT "clearbody"; id = IDENT ->
| IDENT "cut"; t = tactic_term; ident = OPT [ "as"; id = IDENT -> id] ->
GrafiteAst.Cut (loc, ident, t)
| IDENT "decompose"; idents = OPT [ "as"; idents = LIST1 new_name -> idents ] ->
- let idents = match idents with None -> [] | Some idents -> idents in
- GrafiteAst.Decompose (loc, idents)
+ let idents = match idents with None -> [] | Some idents -> idents in
+ GrafiteAst.Decompose (loc, idents)
| IDENT "demodulate"; p = auto_params -> GrafiteAst.Demodulate (loc, p)
| IDENT "destruct"; xts = OPT [ ts = tactic_term_list1 -> ts ] ->
GrafiteAst.Destruct (loc, xts)
| IDENT "elim"; what = tactic_term; using = using;
pattern = OPT pattern_spec;
- (num, idents) = intros_spec ->
- let pattern = match pattern with
- | None -> None, [], Some Ast.UserInput
- | Some pattern -> pattern
- in
- GrafiteAst.Elim (loc, what, using, pattern, (num, idents))
+ ispecs = intros_spec ->
+ let pattern = match pattern with
+ | None -> None, [], Some Ast.UserInput
+ | Some pattern -> pattern
+ in
+ GrafiteAst.Elim (loc, what, using, pattern, ispecs)
| IDENT "elimType"; what = tactic_term; using = using;
(num, idents) = intros_spec ->
- GrafiteAst.ElimType (loc, what, using, (num, idents))
+ GrafiteAst.ElimType (loc, what, using, (num, idents))
| IDENT "exact"; t = tactic_term ->
GrafiteAst.Exact (loc, t)
| IDENT "exists" ->
to_what = OPT [ "to" ; t = tactic_term_list1 -> t ];
ident = OPT [ "as" ; ident = IDENT -> ident ] ->
let linear = match linear with None -> false | Some _ -> true in
- let to_what = match to_what with None -> [] | Some to_what -> to_what in
+ let to_what = match to_what with None -> [] | Some to_what -> to_what in
GrafiteAst.LApply (loc, linear, depth, to_what, what, ident)
| IDENT "left" -> GrafiteAst.Left loc
| IDENT "letin"; where = IDENT ; SYMBOL <:unicode<def>> ; t = tactic_term ->
(CicNotationParser.Parse_error
"the pattern cannot specify the term to rewrite, only its paths in the hypotheses and in the conclusion")))
else
- let n = match xnames with None -> [] | Some names -> names in
+ let n = match xnames with None -> [] | Some names -> names in
GrafiteAst.Rewrite (loc, d, t, p, n)
| IDENT "right" ->
GrafiteAst.Right loc
(* Produzioni Aggiunte *)
| IDENT "assume" ; id = IDENT ; SYMBOL ":" ; t = tactic_term ->
GrafiteAst.Assume (loc, id, t)
- | IDENT "suppose" ; t = tactic_term ; LPAREN ; id = IDENT ; RPAREN ; t1 = OPT [IDENT "that" ; IDENT "is" ; IDENT "equivalent" ; "to" ; t' = tactic_term -> t']->
+ | IDENT "suppose" ; t = tactic_term ; LPAREN ; id = IDENT ; RPAREN ;
+ t1 = OPT [IDENT "that" ; IDENT "is" ; IDENT "equivalent" ; "to" ;
+ t' = tactic_term -> t']->
GrafiteAst.Suppose (loc, t, id, t1)
- | "by" ; t = [t' = tactic_term -> LSome t' | SYMBOL "_" -> LNone loc];
+ | "let" ; id1 = IDENT ; SYMBOL ":" ; t1 = tactic_term ;
+ IDENT "such" ; IDENT "that" ; t2=tactic_term ; LPAREN ;
+ id2 = IDENT ; RPAREN ->
+ GrafiteAst.ExistsElim (loc, `Auto ([],[]), id1, t1, id2, t2)
+ | just =
+ [ IDENT "using"; t=tactic_term -> `Term t
+ | params = auto_params -> `Auto params] ;
cont=by_continuation ->
- let t' = match t with LNone _ -> None | LSome t -> Some t in
(match cont with
- BYC_done -> GrafiteAst.Bydone (loc, t')
- | BYC_weproved (ty,id,t1) ->
- GrafiteAst.By_term_we_proved(loc, t', ty, id, t1)
- | BYC_letsuchthat (id1,t1,id2,t2) ->
- (* (match t with
- LNone floc ->
- raise (HExtlib.Localized
- (floc,CicNotationParser.Parse_error
- "tactic_term expected here"))
- | LSome t ->*) GrafiteAst.ExistsElim (loc, t', id1, t1, id2, t2)(*)*)
- | BYC_wehaveand (id1,t1,id2,t2) ->
- (match t with
- LNone floc ->
- raise (HExtlib.Localized
- (floc,CicNotationParser.Parse_error
- "tactic_term expected here"))
- | LSome t -> GrafiteAst.AndElim (loc, t, id1, t1, id2, t2)))
+ BYC_done -> GrafiteAst.Bydone (loc, just)
+ | BYC_weproved (ty,id,t1) ->
+ GrafiteAst.By_just_we_proved(loc, just, ty, id, t1)
+ | BYC_letsuchthat (id1,t1,id2,t2) ->
+ GrafiteAst.ExistsElim (loc, just, id1, t1, id2, t2)
+ | BYC_wehaveand (id1,t1,id2,t2) ->
+ GrafiteAst.AndElim (loc, just, id1, t1, id2, t2))
| IDENT "we" ; IDENT "need" ; "to" ; IDENT "prove" ; t = tactic_term ; id = OPT [ LPAREN ; id = IDENT ; RPAREN -> id ] ; t1 = OPT [IDENT "or" ; IDENT "equivalently"; t' = tactic_term -> t']->
GrafiteAst.We_need_to_prove (loc, t, id, t1)
- | IDENT "we" ; IDENT "proceed" ; "by" ; IDENT "cases" ; "on" ; t=tactic_term ; "to" ; IDENT "prove" ; t1=tactic_term ->
+ | IDENT "we" ; IDENT "proceed" ; IDENT "by" ; IDENT "cases" ; "on" ; t=tactic_term ; "to" ; IDENT "prove" ; t1=tactic_term ->
GrafiteAst.We_proceed_by_cases_on (loc, t, t1)
- | IDENT "we" ; IDENT "proceed" ; "by" ; IDENT "induction" ; "on" ; t=tactic_term ; "to" ; IDENT "prove" ; t1=tactic_term ->
+ | IDENT "we" ; IDENT "proceed" ; IDENT "by" ; IDENT "induction" ; "on" ; t=tactic_term ; "to" ; IDENT "prove" ; t1=tactic_term ->
GrafiteAst.We_proceed_by_induction_on (loc, t, t1)
- | "by" ; IDENT "induction" ; IDENT "hypothesis" ; IDENT "we" ; IDENT "know" ; t=tactic_term ; LPAREN ; id = IDENT ; RPAREN ->
+ | IDENT "by" ; IDENT "induction" ; IDENT "hypothesis" ; IDENT "we" ; IDENT "know" ; t=tactic_term ; LPAREN ; id = IDENT ; RPAREN ->
GrafiteAst.Byinduction(loc, t, id)
| IDENT "the" ; IDENT "thesis" ; IDENT "becomes" ; t=tactic_term ->
GrafiteAst.Thesisbecomes(loc, t)
| IDENT "case" ; id = IDENT ; params=LIST0[LPAREN ; i=IDENT ;
SYMBOL":" ; t=tactic_term ; RPAREN -> i,t] ->
- GrafiteAst.Case(loc,id,params)
- | start = OPT [
- start =
- [ IDENT "conclude" -> None
- | IDENT "obtain" ; name = IDENT -> Some name ] ;
- termine = tactic_term -> start, termine];
+ GrafiteAst.Case(loc,id,params)
+ (* DO NOT FACTORIZE with the two following, camlp5 sucks*)
+ | IDENT "conclude";
+ termine = tactic_term;
SYMBOL "=" ;
t1=tactic_term ;
t2 =
- [ IDENT "exact"; t=tactic_term -> `Term t
- | IDENT "using"; term=tactic_term -> `SolveWith term
+ [ IDENT "using"; t=tactic_term -> `Term t
+ | IDENT "using"; IDENT "once"; term=tactic_term -> `SolveWith term
+ | IDENT "proof" -> `Proof
+ | params = auto_params -> `Auto params];
+ cont = rewriting_step_continuation ->
+ GrafiteAst.RewritingStep(loc, Some (None,termine), t1, t2, cont)
+ | IDENT "obtain" ; name = IDENT;
+ termine = tactic_term;
+ SYMBOL "=" ;
+ t1=tactic_term ;
+ t2 =
+ [ IDENT "using"; t=tactic_term -> `Term t
+ | IDENT "using"; IDENT "once"; term=tactic_term -> `SolveWith term
+ | IDENT "proof" -> `Proof
+ | params = auto_params -> `Auto params];
+ cont = rewriting_step_continuation ->
+ GrafiteAst.RewritingStep(loc, Some (Some name,termine), t1, t2, cont)
+ | SYMBOL "=" ;
+ t1=tactic_term ;
+ t2 =
+ [ IDENT "using"; t=tactic_term -> `Term t
+ | IDENT "using"; IDENT "once"; term=tactic_term -> `SolveWith term
| IDENT "proof" -> `Proof
| params = auto_params -> `Auto params];
cont = rewriting_step_continuation ->
- GrafiteAst.RewritingStep(loc, start, t1, t2, cont)
+ GrafiteAst.RewritingStep(loc, None, t1, t2, cont)
]
+];
+ auto_fixed_param: [
+ [ IDENT "paramodulation"
+ | IDENT "depth"
+ | IDENT "width"
+ | IDENT "size"
+ | IDENT "timeout"
+ | IDENT "library"
+ | IDENT "type"
+ ]
];
auto_params: [
[ params =
- LIST0 [ i = IDENT -> i,"" | i = IDENT ; SYMBOL "="; v = [ v = int ->
+ LIST0 [
+ i = auto_fixed_param -> i,""
+ | i = auto_fixed_param ; SYMBOL "="; v = [ v = int ->
string_of_int v | v = IDENT -> v ] -> i,v ];
- tl = OPT [ "by"; tl = LIST1 tactic_term -> tl] ->
+ tl = OPT [ IDENT "by"; tl = tactic_term_list1 -> tl] ->
(match tl with Some l -> l | None -> []),
params
]
];
by_continuation: [
- [ IDENT "we" ; IDENT "proved" ; ty = tactic_term ; LPAREN ; id = IDENT ; RPAREN ; t1 = OPT [IDENT "that" ; IDENT "is" ; IDENT "equivalent" ; "to" ; t2 = tactic_term -> t2] -> BYC_weproved (ty,Some id,t1)
- | IDENT "we" ; IDENT "proved" ; ty = tactic_term ; t1 = OPT [IDENT "that" ; IDENT "is" ; IDENT "equivalent" ; "to" ; t2 = tactic_term -> t2] ;
+ [ WEPROVED; ty = tactic_term ; LPAREN ; id = IDENT ; RPAREN ; t1 = OPT [IDENT "that" ; IDENT "is" ; IDENT "equivalent" ; "to" ; t2 = tactic_term -> t2] -> BYC_weproved (ty,Some id,t1)
+ | WEPROVED; ty = tactic_term ; t1 = OPT [IDENT "that" ; IDENT "is" ; IDENT "equivalent" ; "to" ; t2 = tactic_term -> t2] ;
"done" -> BYC_weproved (ty,None,t1)
| "done" -> BYC_done
| "let" ; id1 = IDENT ; SYMBOL ":" ; t1 = tactic_term ;
- IDENT "such" ; IDENT "that" ; t2=tactic_term ; LPAREN ; id2 = IDENT ; RPAREN -> BYC_letsuchthat (id1,t1,id2,t2)
- | IDENT "we" ; IDENT "have" ; t1=tactic_term ; LPAREN ; id1=IDENT ; RPAREN ;"and" ; t2=tactic_term ; LPAREN ; id2=IDENT ; RPAREN ->
- BYC_wehaveand (id1,t1,id2,t2)
+ IDENT "such" ; IDENT "that" ; t2=tactic_term ; LPAREN ;
+ id2 = IDENT ; RPAREN -> BYC_letsuchthat (id1,t1,id2,t2)
+ | WEHAVE; t1=tactic_term ; LPAREN ; id1=IDENT ; RPAREN ;"and" ; t2=tactic_term ; LPAREN ; id2=IDENT ; RPAREN ->
+ BYC_wehaveand (id1,t1,id2,t2)
]
];
rewriting_step_continuation : [
| [ IDENT "theorem" ] -> `Theorem
]
];
+ inline_flavour: [
+ [ attr = theorem_flavour -> attr
+ | [ IDENT "axiom" ] -> `Axiom
+ | [ IDENT "mutual" ] -> `MutualDefinition
+ ]
+ ];
inductive_spec: [ [
- fst_name = IDENT; params = LIST0 CicNotationParser.protected_binder_vars;
+ fst_name = IDENT;
+ params = LIST0 protected_binder_vars;
SYMBOL ":"; fst_typ = term; SYMBOL <:unicode<def>>; OPT SYMBOL "|";
fst_constructors = LIST0 constructor SEP SYMBOL "|";
tl = OPT [ "with";
] ];
record_spec: [ [
- name = IDENT; params = LIST0 CicNotationParser.protected_binder_vars ;
+ name = IDENT;
+ params = LIST0 protected_binder_vars;
SYMBOL ":"; typ = term; SYMBOL <:unicode<def>>; SYMBOL "{" ;
fields = LIST0 [
name = IDENT ;
macro: [
[ [ IDENT "check" ]; t = term ->
GrafiteAst.Check (loc, t)
+ | [ IDENT "eval" ]; kind = reduction_kind; "on"; t = tactic_term ->
+ GrafiteAst.Eval (loc, kind, t)
| [ IDENT "inline"];
style = OPT [ IDENT "procedural"; depth = OPT int -> depth ];
- suri = QSTRING; prefix = OPT QSTRING ->
+ suri = QSTRING; prefix = OPT QSTRING;
+ flavour = OPT [ "as"; attr = inline_flavour -> attr ] ->
let style = match style with
- | None -> GrafiteAst.Declarative
- | Some depth -> GrafiteAst.Procedural depth
- in
- let prefix = match prefix with None -> "" | Some prefix -> prefix in
- GrafiteAst.Inline (loc,style,suri,prefix)
+ | None -> GrafiteAst.Declarative
+ | Some depth -> GrafiteAst.Procedural depth
+ in
+ let prefix = match prefix with None -> "" | Some prefix -> prefix in
+ GrafiteAst.Inline (loc,style,suri,prefix, flavour)
| [ IDENT "hint" ]; rew = OPT (IDENT "rewrite") ->
if rew = None then GrafiteAst.Hint (loc, false) else GrafiteAst.Hint (loc,true)
| IDENT "auto"; params = auto_params ->
let alpha = "[a-zA-Z]" in
let num = "[0-9]+" in
let ident_cont = "\\("^alpha^"\\|"^num^"\\|_\\|\\\\\\)" in
- let ident = "\\("^alpha^ident_cont^"*\\|_"^ident_cont^"+\\)" in
+ let decoration = "\\'" in
+ let ident = "\\("^alpha^ident_cont^"*"^decoration^"*\\|_"^ident_cont^"+"^decoration^"*\\)" in
let rex = Str.regexp ("^"^ident^"$") in
if Str.string_match rex id 0 then
if (try ignore (UriManager.uri_of_string uri); true
];
notation: [
[ dir = OPT direction; s = QSTRING;
- assoc = OPT associativity; prec = OPT precedence;
+ assoc = OPT associativity; prec = precedence;
IDENT "for";
p2 =
[ blob = UNPARSED_AST ->
| None -> default_associativity
| Some assoc -> assoc
in
- let prec =
- match prec with
- | None -> default_precedence
- | Some prec -> prec
- in
let p1 =
add_raw_attribute ~text:s
- (CicNotationParser.parse_level1_pattern
+ (CicNotationParser.parse_level1_pattern prec
(Ulexing.from_utf8_string s))
in
(dir, p1, assoc, prec, p2)
Ast.Theorem (flavour, name, Ast.Implicit, Some body))
| IDENT "axiom"; name = IDENT; SYMBOL ":"; typ = term ->
GrafiteAst.Obj (loc, Ast.Theorem (`Axiom, name, typ, None))
- | "let"; ind_kind = [ "corec" -> `CoInductive | "rec"-> `Inductive ];
- defs = CicNotationParser.let_defs ->
- (* In case of mutual definitions here we produce just
- the syntax tree for the first one. The others will be
- generated from the completely specified term just before
- insertion in the environment. We use the flavour
- `MutualDefinition to rememer this. *)
- let name,ty =
- match defs with
- | (params,(Ast.Ident (name, None), Some ty),_,_) :: _ ->
- let ty =
- List.fold_right
- (fun var ty -> Ast.Binder (`Pi,var,ty)
- ) params ty
- in
- name,ty
- | (_,(Ast.Ident (name, None), None),_,_) :: _ ->
- name, Ast.Implicit
- | _ -> assert false
- in
- let body = Ast.Ident (name,None) in
- let flavour =
- if List.length defs = 1 then
- `Definition
- else
- `MutualDefinition
- in
- GrafiteAst.Obj (loc, Ast.Theorem(flavour, name, ty,
- Some (Ast.LetRec (ind_kind, defs, body))))
+ | LETCOREC ; defs = let_defs ->
+ mk_rec_corec `CoInductive defs loc
+ | LETREC ; defs = let_defs ->
+ mk_rec_corec `Inductive defs loc
| IDENT "inductive"; spec = inductive_spec ->
let (params, ind_types) = spec in
GrafiteAst.Obj (loc, Ast.Inductive (params, ind_types))
ind_types
in
GrafiteAst.Obj (loc, Ast.Inductive (params, ind_types))
- | IDENT "coercion" ; suri = URI ; arity = OPT int ;
- saturations = OPT int; composites = OPT (IDENT "nocomposites") ->
+ | IDENT "coercion" ;
+ t = [ u = URI -> Ast.Uri (u,None) | t = tactic_term ; OPT "with" -> t ] ;
+ arity = OPT int ; saturations = OPT int;
+ composites = OPT (IDENT "nocomposites") ->
let arity = match arity with None -> 0 | Some x -> x in
let saturations = match saturations with None -> 0 | Some x -> x in
let composites = match composites with None -> true | Some _ -> false in
GrafiteAst.Coercion
- (loc, UriManager.uri_of_string suri, composites, arity, saturations)
+ (loc, t, composites, arity, saturations)
+ | IDENT "prefer" ; IDENT "coercion"; t = tactic_term ->
+ GrafiteAst.PreferCoercion (loc, t)
+ | IDENT "unification"; IDENT "hint"; t = tactic_term ->
+ GrafiteAst.UnificationHint (loc, t)
| IDENT "record" ; (params,name,ty,fields) = record_spec ->
GrafiteAst.Obj (loc, Ast.Record (params,name,ty,fields))
| IDENT "default" ; what = QSTRING ; uris = LIST1 URI ->
let uris = List.map UriManager.uri_of_string uris in
GrafiteAst.Default (loc,what,uris)
| IDENT "relation" ; aeq = tactic_term ; "on" ; a = tactic_term ;
- refl = OPT [ IDENT "reflexivity" ; IDENT "proved" ; "by" ;
+ refl = OPT [ IDENT "reflexivity" ; IDENT "proved" ; IDENT "by" ;
refl = tactic_term -> refl ] ;
- sym = OPT [ IDENT "symmetry" ; IDENT "proved" ; "by" ;
+ sym = OPT [ IDENT "symmetry" ; IDENT "proved" ; IDENT "by" ;
sym = tactic_term -> sym ] ;
- trans = OPT [ IDENT "transitivity" ; IDENT "proved" ; "by" ;
+ trans = OPT [ IDENT "transitivity" ; IDENT "proved" ; IDENT "by" ;
trans = tactic_term -> trans ] ;
"as" ; id = IDENT ->
GrafiteAst.Relation (loc,id,a,aeq,refl,sym,trans)
[ ex = executable ->
fun ?(never_include=false) ~include_paths status -> status,LSome(GrafiteAst.Executable (loc,ex))
| com = comment ->
- fun ?(never_include=false) ~include_paths status -> status,LSome (GrafiteAst.Comment (loc, com))
+ fun ?(never_include=false) ~include_paths status ->
+ status,LSome (GrafiteAst.Comment (loc, com))
| (iloc,fname,mode) = include_command ; SYMBOL "." ->
+ !out fname;
fun ?(never_include=false) ~include_paths status ->
- let _root, buri, fullpath, _rrelpath =
+ let _root, buri, fullpath, _rrelpath =
Librarian.baseuri_of_script ~include_paths fname
in
let status =
else LexiconEngine.eval_command status
(LexiconAst.Include (iloc,buri,mode,fullpath))
in
- !out fname;
status,
LSome
(GrafiteAst.Executable
(loc,GrafiteAst.Include (iloc,buri))))
| scom = lexicon_command ; SYMBOL "." ->
fun ?(never_include=false) ~include_paths status ->
- let status = LexiconEngine.eval_command status scom in
+ let status = LexiconEngine.eval_command status scom in
status,LNone loc
| EOI -> raise End_of_file
]
];
END
+(* }}} *)
+;;
+
+let _ = initialize_parser () ;;
let exc_located_wrapper f =
try
| Stdpp.Exc_located (_, End_of_file) -> raise End_of_file
| Stdpp.Exc_located (floc, Stream.Error msg) ->
raise (HExtlib.Localized (floc,CicNotationParser.Parse_error msg))
+ | Stdpp.Exc_located (floc, HExtlib.Localized(_,exn)) ->
+ raise
+ (HExtlib.Localized (floc,CicNotationParser.Parse_error (Printexc.to_string exn)))
| Stdpp.Exc_located (floc, exn) ->
raise
(HExtlib.Localized (floc,CicNotationParser.Parse_error (Printexc.to_string exn)))
let parse_statement lexbuf =
exc_located_wrapper
- (fun () -> (Grammar.Entry.parse statement (Obj.magic lexbuf)))
+ (fun () -> (Grammar.Entry.parse !grafite_parser.statement (Obj.magic lexbuf)))
+
+let statement () = !grafite_parser.statement
+
+let history = ref [] ;;
+
+let push () =
+ LexiconSync.push ();
+ history := !grafite_parser :: !history;
+ grafite_parser := initial_parser ();
+ initialize_parser ()
+;;
+
+let pop () =
+ LexiconSync.pop ();
+ match !history with
+ | [] -> assert false
+ | gp :: tail ->
+ grafite_parser := gp;
+ history := tail
+;;
+
+(* vim:set foldmethod=marker: *)
+