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|
(***********************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA-Rocquencourt & LRI-CNRS-Orsay *)
(* \VV/ *************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(***********************************************************************)
(* $Id$ *)
open Pp
open Util
open Names
open Coqast
open Topconstr
open Vernacexpr
open Pcoq
open Tactic
open Decl_kinds
open Genarg
open Extend
open Ppextend
open Goptions
open Prim
open Constr
open Vernac_
open Module
let vernac_kw = [ ";"; ","; ">->"; ":<"; "<:"; "where"; "at" ]
let _ =
if not !Options.v7 then
List.iter (fun s -> Lexer.add_token ("",s)) vernac_kw
(* Rem: do not join the different GEXTEND into one, it breaks native *)
(* compilation on PowerPC and Sun architectures *)
let check_command = Gram.Entry.create "vernac:check_command"
let class_rawexpr = Gram.Entry.create "vernac:class_rawexpr"
let thm_token = Gram.Entry.create "vernac:thm_token"
let def_body = Gram.Entry.create "vernac:def_body"
if not !Options.v7 then
GEXTEND Gram
GLOBAL: vernac gallina_ext;
vernac:
(* Better to parse "." here: in case of failure (e.g. in coerce_to_var), *)
(* "." is still in the stream and discard_to_dot works correctly *)
[ [ g = gallina; "." -> g
| g = gallina_ext; "." -> g
| c = command; "." -> c
| c = syntax; "." -> c
| "["; l = LIST1 located_vernac; "]"; "." -> VernacList l
] ]
;
vernac: FIRST
[ [ IDENT "Time"; v = vernac -> VernacTime v ] ]
;
vernac: LAST
[ [ gln = OPT[n=natural; ":" -> n];
tac = subgoal_command -> tac gln ] ]
;
subgoal_command:
[ [ c = check_command; "." -> c
| tac = Tactic.tactic;
use_dft_tac = [ "." -> false | ".."; "." -> true ] ->
(fun g ->
let g = match g with Some gl -> gl | _ -> 1 in
VernacSolve(g,tac,use_dft_tac)) ] ]
;
located_vernac:
[ [ v = vernac -> loc, v ] ]
;
END
let test_plurial_form = function
| [(_,([_],_))] ->
Options.if_verbose warning
"Keywords Variables/Hypotheses/Parameters expect more than one assumption"
| _ -> ()
let no_coercion loc (c,x) =
if c then Util.user_err_loc
(loc,"no_coercion",Pp.str"no coercion allowed here");
x
(* Gallina declarations *)
if not !Options.v7 then
GEXTEND Gram
GLOBAL: gallina gallina_ext thm_token def_body;
gallina:
(* Definition, Theorem, Variable, Axiom, ... *)
[ [ thm = thm_token; id = identref; (* bl = LIST0 binder; *) ":";
c = lconstr ->
let bl = [] in
VernacStartTheoremProof (thm, id, (bl, c), false, (fun _ _ -> ()))
| (f,d) = def_token; id = identref; b = def_body ->
VernacDefinition (d, id, b, f)
| stre = assumption_token; bl = assum_list ->
VernacAssumption (stre, bl)
| stre = assumptions_token; bl = assum_list ->
test_plurial_form bl;
VernacAssumption (stre, bl)
(* Gallina inductive declarations *)
| f = finite_token;
indl = LIST1 inductive_definition SEP "with" ->
VernacInductive (f,indl)
| "Fixpoint"; recs = LIST1 rec_definition SEP "with" ->
VernacFixpoint recs
| "CoFixpoint"; corecs = LIST1 corec_definition SEP "with" ->
VernacCoFixpoint corecs
| IDENT "Scheme"; l = LIST1 scheme SEP "with" -> VernacScheme l ] ]
;
gallina_ext:
[ [ b = record_token; oc = opt_coercion; name = identref;
ps = LIST0 binder_let; ":";
s = lconstr; ":="; cstr = OPT identref; "{";
fs = LIST0 record_field SEP ";"; "}" ->
VernacRecord (b,(oc,name),ps,s,cstr,fs)
(* Non porté ?
| f = finite_token; s = csort; id = identref;
indpar = LIST0 simple_binder; ":="; lc = constructor_list ->
VernacInductive (f,[id,None,indpar,s,lc])
*)
] ]
;
thm_token:
[ [ "Theorem" -> Theorem
| IDENT "Lemma" -> Lemma
| IDENT "Fact" -> Fact
| IDENT "Remark" -> Remark ] ]
;
def_token:
[ [ "Definition" -> (fun _ _ -> ()), (Global, Definition)
| IDENT "Let" -> (fun _ _ -> ()), (Local, Definition)
| IDENT "SubClass" -> Class.add_subclass_hook, (Global, SubClass)
| IDENT "Local"; IDENT "SubClass" ->
Class.add_subclass_hook, (Local, SubClass) ] ]
;
assumption_token:
[ [ "Hypothesis" -> (Local, Logical)
| "Variable" -> (Local, Definitional)
| "Axiom" -> (Global, Logical)
| "Parameter" -> (Global, Definitional)
| IDENT "Conjecture" -> (Global, Conjectural) ] ]
;
assumptions_token:
[ [ IDENT "Hypotheses" -> (Local, Logical)
| IDENT "Variables" -> (Local, Definitional)
| IDENT "Axioms" -> (Global, Logical)
| IDENT "Parameters" -> (Global, Definitional) ] ]
;
finite_token:
[ [ "Inductive" -> true
| "CoInductive" -> false ] ]
;
record_token:
[ [ IDENT "Record" -> true | IDENT "Structure" -> false ] ]
;
(* Simple definitions *)
def_body:
[ [ bl = LIST0 binder_let; ":="; red = reduce; c = lconstr ->
(match c with
CCast(_,c,t) -> DefineBody (bl, red, c, Some t)
| _ -> DefineBody (bl, red, c, None))
| bl = LIST0 binder_let; ":"; t = lconstr; ":="; red = reduce; c = lconstr ->
DefineBody (bl, red, c, Some t)
| bl = LIST0 binder_let; ":"; t = lconstr ->
ProveBody (bl, t) ] ]
;
reduce:
[ [ IDENT "Eval"; r = Tactic.red_expr; "in" -> Some r
| -> None ] ]
;
decl_notation:
[ [ OPT [ "where"; ntn = ne_string; ":="; c = constr;
scopt = OPT [ ":"; sc = IDENT -> sc] -> (ntn,c,scopt) ] ] ]
;
(* Inductives and records *)
inductive_definition:
[ [ id = identref; indpar = LIST0 binder_let; ":"; c = lconstr;
":="; lc = constructor_list; ntn = decl_notation ->
(id,ntn,indpar,c,lc) ] ]
;
constructor_list:
[ [ "|"; l = LIST1 constructor SEP "|" -> l
| l = LIST1 constructor SEP "|" -> l
| -> [] ] ]
;
(*
csort:
[ [ s = sort -> CSort (loc,s) ] ]
;
*)
opt_coercion:
[ [ ">" -> true
| -> false ] ]
;
(* (co)-fixpoints *)
rec_definition:
[ [ id = base_ident; bl = LIST1 binder_let;
annot = OPT rec_annotation; type_ = type_cstr;
":="; def = lconstr; ntn = decl_notation ->
let names = List.map snd (G_constrnew.decls_of_binders bl) in
let nargs = List.length names in
let ni =
match annot with
Some id ->
(try list_index (Name id) names - 1
with Not_found -> Util.user_err_loc
(loc,"Fixpoint",
Pp.str "No argument named " ++ Nameops.pr_id id))
| None ->
if List.length names > 1 then
Util.user_err_loc
(loc,"Fixpoint",
Pp.str "the recursive argument needs to be specified");
0 in
let loc0 = G_constrnew.loc_of_binder_let bl in
let loc1 = join_loc loc0 (constr_loc type_) in
let loc2 = join_loc loc0 (constr_loc def) in
((id, ni, Some nargs, G_constrnew.mkCProdN loc1 bl type_,
G_constrnew.mkCLambdaN loc2 bl def),ntn) ] ]
;
corec_definition:
[ [ id = base_ident; bl = LIST0 binder_let; c = type_cstr; ":=";
def = lconstr ->
(id,G_constrnew.mkCProdN loc bl c ,
G_constrnew.mkCLambdaN loc bl def) ] ]
;
rec_annotation:
[ [ "{"; IDENT "struct"; id=IDENT; "}" -> id_of_string id ] ]
;
type_cstr:
[ [ ":"; c=lconstr -> c
| -> CHole loc ] ]
;
(* Inductive schemes *)
scheme:
[ [ id = identref; ":="; dep = dep_scheme; "for"; ind = global;
IDENT "Sort"; s = sort ->
(id,dep,ind,s) ] ]
;
dep_scheme:
[ [ IDENT "Induction" -> true
| IDENT "Minimality" -> false ] ]
;
(* Various Binders *)
(*
(* ... without coercions *)
binder_nodef:
[ [ b = binder_let ->
(match b with
LocalRawAssum(l,ty) -> (l,ty)
| LocalRawDef _ ->
Util.user_err_loc
(loc,"fix_param",Pp.str"defined binder not allowed here")) ] ]
;
*)
(* ... with coercions *)
record_field:
[ [ id = name -> (false,AssumExpr(id,CHole loc))
| id = name; oc = of_type_with_opt_coercion; t = lconstr ->
(oc,AssumExpr (id,t))
| id = name; oc = of_type_with_opt_coercion;
t = lconstr; ":="; b = lconstr -> (oc,DefExpr (id,b,Some t))
| id = name; ":="; b = lconstr ->
match b with
CCast(_,b,t) -> (false,DefExpr(id,b,Some t))
| _ -> (false,DefExpr(id,b,None)) ] ]
;
assum_list:
[ [ bl = LIST1 assum_coe -> bl | b = simple_assum_coe -> [b] ] ]
;
assum_coe:
[ [ "("; a = simple_assum_coe; ")" -> a ] ]
;
simple_assum_coe:
[ [ idl = LIST1 identref; oc = of_type_with_opt_coercion; c = lconstr ->
(oc,(idl,c)) ] ]
;
constructor:
[ [ id = identref; l = LIST0 binder_let;
coe = of_type_with_opt_coercion; c = lconstr ->
(coe,(id,G_constrnew.mkCProdN loc l c))
| id = identref; l = LIST0 binder_let ->
(false,(id,G_constrnew.mkCProdN loc l (CHole loc))) ] ]
;
of_type_with_opt_coercion:
[ [ ":>" -> true
| ":"; ">" -> true
| ":" -> false ] ]
;
END
(* Modules and Sections *)
if not !Options.v7 then
GEXTEND Gram
GLOBAL: gallina_ext module_expr module_type;
gallina_ext:
[ [ (* Interactive module declaration *)
IDENT "Module"; id = identref;
bl = LIST0 module_binder; mty_o = OPT of_module_type;
mexpr_o = OPT is_module_expr ->
VernacDefineModule (id, bl, mty_o, mexpr_o)
| IDENT "Module"; "Type"; id = identref;
bl = LIST0 module_binder; mty_o = OPT is_module_type ->
VernacDeclareModuleType (id, bl, mty_o)
| IDENT "Declare"; IDENT "Module"; id = identref;
bl = LIST0 module_binder; mty_o = OPT of_module_type;
mexpr_o = OPT is_module_expr ->
VernacDeclareModule (id, bl, mty_o, mexpr_o)
(* Section beginning *)
| IDENT "Section"; id = identref -> VernacBeginSection id
| IDENT "Chapter"; id = identref -> VernacBeginSection id
(* This end a Section a Module or a Module Type *)
| IDENT "End"; id = identref -> VernacEndSegment id
(* Requiring an already compiled module *)
| IDENT "Require"; export = export_token; specif = specif_token;
qidl = LIST1 global ->
VernacRequire (export, specif, qidl)
| IDENT "Require"; export = export_token; specif = specif_token;
filename = ne_string ->
VernacRequireFrom (export, specif, filename)
| IDENT "Import"; qidl = LIST1 global -> VernacImport (false,qidl)
| IDENT "Export"; qidl = LIST1 global -> VernacImport (true,qidl) ] ]
;
export_token:
[ [ IDENT "Import" -> Some false
| IDENT "Export" -> Some true
| -> None ] ]
;
specif_token:
[ [ IDENT "Implementation" -> Some false
| IDENT "Specification" -> Some true
| -> None ] ]
;
of_module_type:
[ [ ":"; mty = module_type -> (mty, true)
| "<:"; mty = module_type -> (mty, false) ] ]
;
is_module_type:
[ [ ":="; mty = module_type -> mty ] ]
;
is_module_expr:
[ [ ":="; mexpr = module_expr -> mexpr ] ]
;
(* Module binder *)
module_binder:
[ [ "("; idl = LIST1 identref; ":"; mty = module_type; ")" ->
(idl,mty) ] ]
;
(* Module expressions *)
module_expr:
[ [ qid = qualid -> CMEident qid
| me1 = module_expr; me2 = module_expr -> CMEapply (me1,me2)
| "("; me = module_expr; ")" -> me
(* ... *)
] ]
;
with_declaration:
[ [ "Definition"; id = identref; ":="; c = Constr.lconstr ->
CWith_Definition (id,c)
| IDENT "Module"; id = identref; ":="; qid = qualid ->
CWith_Module (id,qid)
] ]
;
module_type:
[ [ qid = qualid -> CMTEident qid
(* ... *)
| mty = module_type; "with"; decl = with_declaration ->
CMTEwith (mty,decl) ] ]
;
END
(* Extensions: implicits, coercions, etc. *)
if not !Options.v7 then
GEXTEND Gram
GLOBAL: gallina_ext;
gallina_ext:
[ [ (* Transparent and Opaque *)
IDENT "Transparent"; l = LIST1 global -> VernacSetOpacity (false, l)
| IDENT "Opaque"; l = LIST1 global -> VernacSetOpacity (true, l)
(* Canonical structure *)
| IDENT "Canonical"; IDENT "Structure"; qid = global ->
VernacCanonical qid
| IDENT "Canonical"; IDENT "Structure"; qid = global; d = def_body ->
let s = Ast.coerce_global_to_id qid in
VernacDefinition
((Global,CanonicalStructure),(dummy_loc,s),d,Recordobj.add_object_hook)
(* Coercions *)
| IDENT "Coercion"; qid = global; d = def_body ->
let s = Ast.coerce_global_to_id qid in
VernacDefinition ((Global,Coercion),(dummy_loc,s),d,Class.add_coercion_hook)
| IDENT "Coercion"; IDENT "Local"; qid = global; d = def_body ->
let s = Ast.coerce_global_to_id qid in
VernacDefinition ((Local,Coercion),(dummy_loc,s),d,Class.add_coercion_hook)
| IDENT "Identity"; IDENT "Coercion"; IDENT "Local"; f = identref;
":"; s = class_rawexpr; ">->"; t = class_rawexpr ->
VernacIdentityCoercion (Local, f, s, t)
| IDENT "Identity"; IDENT "Coercion"; f = identref; ":";
s = class_rawexpr; ">->"; t = class_rawexpr ->
VernacIdentityCoercion (Global, f, s, t)
| IDENT "Coercion"; IDENT "Local"; qid = global; ":";
s = class_rawexpr; ">->"; t = class_rawexpr ->
VernacCoercion (Local, qid, s, t)
| IDENT "Coercion"; qid = global; ":"; s = class_rawexpr; ">->";
t = class_rawexpr ->
VernacCoercion (Global, qid, s, t)
(* Implicit *)
| IDENT "Implicit"; IDENT "Arguments"; qid = global;
pos = OPT [ "["; l = LIST0 ident; "]" -> l ] ->
let pos = option_app (List.map (fun id -> ExplByName id)) pos in
VernacDeclareImplicits (qid,pos)
| IDENT "Implicit"; ["Type" | IDENT "Types"];
idl = LIST1 identref; ":"; c = lconstr -> VernacReserve (idl,c) ] ]
;
END
if not !Options.v7 then
GEXTEND Gram
GLOBAL: command check_command class_rawexpr;
command:
[ [ IDENT "Comments"; l = LIST0 comment -> VernacComments l
(* System directory *)
| IDENT "Pwd" -> VernacChdir None
| IDENT "Cd" -> VernacChdir None
| IDENT "Cd"; dir = ne_string -> VernacChdir (Some dir)
(* Toplevel control *)
| IDENT "Drop" -> VernacToplevelControl Drop
| IDENT "ProtectedLoop" -> VernacToplevelControl ProtectedLoop
| IDENT "Quit" -> VernacToplevelControl Quit
| IDENT "Load"; verbosely = [ IDENT "Verbose" -> true | -> false ];
s = [ s = ne_string -> s | s = IDENT -> s ] ->
VernacLoad (verbosely, s)
| IDENT "Declare"; IDENT "ML"; IDENT "Module"; l = LIST1 ne_string ->
VernacDeclareMLModule l
(* Dump of the universe graph - to file or to stdout *)
| IDENT "Dump"; IDENT "Universes"; fopt = OPT ne_string ->
VernacPrint (PrintUniverses fopt)
| IDENT "Locate"; l = locatable -> VernacLocate l
(* Managing load paths *)
| IDENT "Add"; IDENT "LoadPath"; dir = ne_string; alias = as_dirpath ->
VernacAddLoadPath (false, dir, alias)
| IDENT "Add"; IDENT "Rec"; IDENT "LoadPath"; dir = ne_string;
alias = as_dirpath -> VernacAddLoadPath (true, dir, alias)
| IDENT "Remove"; IDENT "LoadPath"; dir = ne_string ->
VernacRemoveLoadPath dir
(* For compatibility *)
| IDENT "AddPath"; dir = ne_string; "as"; alias = as_dirpath ->
VernacAddLoadPath (false, dir, alias)
| IDENT "AddRecPath"; dir = ne_string; "as"; alias = as_dirpath ->
VernacAddLoadPath (true, dir, alias)
| IDENT "DelPath"; dir = ne_string ->
VernacRemoveLoadPath dir
(* Type-Checking (pas dans le refman) *)
| "Type"; c = lconstr -> VernacGlobalCheck c
(* Printing (careful factorization of entries) *)
| IDENT "Print"; p = printable -> VernacPrint p
| IDENT "Print"; qid = global -> VernacPrint (PrintName qid)
| IDENT "Print"; IDENT "Module"; "Type"; qid = global ->
VernacPrint (PrintModuleType qid)
| IDENT "Print"; IDENT "Module"; qid = global ->
VernacPrint (PrintModule qid)
| IDENT "Inspect"; n = natural -> VernacPrint (PrintInspect n)
| IDENT "About"; qid = global -> VernacPrint (PrintAbout qid)
(* Searching the environment *)
| IDENT "Search"; qid = global; l = in_or_out_modules ->
VernacSearch (SearchHead qid, l)
| IDENT "SearchPattern"; c = constr_pattern; l = in_or_out_modules ->
VernacSearch (SearchPattern c, l)
| IDENT "SearchRewrite"; c = constr_pattern; l = in_or_out_modules ->
VernacSearch (SearchRewrite c, l)
| IDENT "SearchAbout";
sl = [ "["; l = LIST1 [ r = global -> SearchRef r
| s = ne_string -> SearchString s ]; "]" -> l
| qid = global -> [SearchRef qid] ];
l = in_or_out_modules ->
VernacSearch (SearchAbout sl, l)
| IDENT "Add"; IDENT "ML"; IDENT "Path"; dir = ne_string ->
VernacAddMLPath (false, dir)
| IDENT "Add"; IDENT "Rec"; IDENT "ML"; IDENT "Path"; dir = ne_string ->
VernacAddMLPath (true, dir)
(* Pour intervenir sur les tables de paramètres *)
| "Set"; table = IDENT; field = IDENT; v = option_value ->
VernacSetOption (SecondaryTable (table,field),v)
| "Set"; table = IDENT; field = IDENT; lv = LIST1 option_ref_value ->
VernacAddOption (SecondaryTable (table,field),lv)
| "Set"; table = IDENT; field = IDENT ->
VernacSetOption (SecondaryTable (table,field),BoolValue true)
| IDENT "Unset"; table = IDENT; field = IDENT ->
VernacUnsetOption (SecondaryTable (table,field))
| IDENT "Unset"; table = IDENT; field = IDENT; lv = LIST1 option_ref_value ->
VernacRemoveOption (SecondaryTable (table,field),lv)
| "Set"; table = IDENT; value = option_value ->
VernacSetOption (PrimaryTable table, value)
| "Set"; table = IDENT ->
VernacSetOption (PrimaryTable table, BoolValue true)
| IDENT "Unset"; table = IDENT ->
VernacUnsetOption (PrimaryTable table)
| IDENT "Print"; IDENT "Table"; table = IDENT; field = IDENT ->
VernacPrintOption (SecondaryTable (table,field))
| IDENT "Print"; IDENT "Table"; table = IDENT ->
VernacPrintOption (PrimaryTable table)
| IDENT "Add"; table = IDENT; field = IDENT; v = LIST1 option_ref_value
-> VernacAddOption (SecondaryTable (table,field), v)
(* Un value global ci-dessous va être caché par un field au dessus! *)
| IDENT "Add"; table = IDENT; v = LIST1 option_ref_value ->
VernacAddOption (PrimaryTable table, v)
| IDENT "Test"; table = IDENT; field = IDENT; v = LIST1 option_ref_value
-> VernacMemOption (SecondaryTable (table,field), v)
| IDENT "Test"; table = IDENT; field = IDENT ->
VernacPrintOption (SecondaryTable (table,field))
| IDENT "Test"; table = IDENT; v = LIST1 option_ref_value ->
VernacMemOption (PrimaryTable table, v)
| IDENT "Test"; table = IDENT ->
VernacPrintOption (PrimaryTable table)
| IDENT "Remove"; table = IDENT; field = IDENT; v= LIST1 option_ref_value
-> VernacRemoveOption (SecondaryTable (table,field), v)
| IDENT "Remove"; table = IDENT; v = LIST1 option_ref_value ->
VernacRemoveOption (PrimaryTable table, v) ] ]
;
check_command: (* TODO: rapprocher Eval et Check *)
[ [ IDENT "Eval"; r = Tactic.red_expr; "in"; c = lconstr ->
fun g -> VernacCheckMayEval (Some r, g, c)
| IDENT "Check"; c = lconstr ->
fun g -> VernacCheckMayEval (None, g, c) ] ]
;
printable:
[ [ IDENT "Term"; qid = global -> PrintName qid
| IDENT "All" -> PrintFullContext
| IDENT "Section"; s = global -> PrintSectionContext s
| IDENT "Grammar"; ent = IDENT ->
(* This should be in "syntax" section but is here for factorization*)
PrintGrammar ("", ent)
| IDENT "LoadPath" -> PrintLoadPath
| IDENT "Modules" -> PrintModules
| IDENT "ML"; IDENT "Path" -> PrintMLLoadPath
| IDENT "ML"; IDENT "Modules" -> PrintMLModules
| IDENT "Graph" -> PrintGraph
| IDENT "Classes" -> PrintClasses
| IDENT "Coercions" -> PrintCoercions
| IDENT "Coercion"; IDENT "Paths"; s = class_rawexpr; t = class_rawexpr
-> PrintCoercionPaths (s,t)
| IDENT "Tables" -> PrintTables
(* Obsolete: was used for cooking V6.3 recipes ??
| IDENT "Proof"; qid = global -> PrintOpaqueName qid
*)
| IDENT "Hint" -> PrintHintGoal
| IDENT "Hint"; qid = global -> PrintHint qid
| IDENT "Hint"; "*" -> PrintHintDb
| IDENT "HintDb"; s = IDENT -> PrintHintDbName s
| IDENT "Scopes" -> PrintScopes
| IDENT "Scope"; s = IDENT -> PrintScope s
| IDENT "Visibility"; s = OPT IDENT -> PrintVisibility s
| IDENT "Implicit"; qid = global -> PrintImplicit qid ] ]
;
class_rawexpr:
[ [ IDENT "Funclass" -> FunClass
| IDENT "Sortclass" -> SortClass
| qid = global -> RefClass qid ] ]
;
locatable:
[ [ qid = global -> LocateTerm qid
| IDENT "File"; f = ne_string -> LocateFile f
| IDENT "Library"; qid = global -> LocateLibrary qid
| s = ne_string -> LocateNotation s ] ]
;
option_value:
[ [ n = integer -> IntValue n
| s = STRING -> StringValue s ] ]
;
option_ref_value:
[ [ id = global -> QualidRefValue id
| s = STRING -> StringRefValue s ] ]
;
as_dirpath:
[ [ d = OPT [ "as"; d = dirpath -> d ] -> d ] ]
;
in_or_out_modules:
[ [ IDENT "inside"; l = LIST1 global -> SearchInside l
| IDENT "outside"; l = LIST1 global -> SearchOutside l
| -> SearchOutside [] ] ]
;
comment:
[ [ c = constr -> CommentConstr c
| s = STRING -> CommentString s
| n = natural -> CommentInt n ] ]
;
END;
if not !Options.v7 then
GEXTEND Gram
command:
[ [
(* State management *)
IDENT "Write"; IDENT "State"; s = IDENT -> VernacWriteState s
| IDENT "Write"; IDENT "State"; s = ne_string -> VernacWriteState s
| IDENT "Restore"; IDENT "State"; s = IDENT -> VernacRestoreState s
| IDENT "Restore"; IDENT "State"; s = ne_string -> VernacRestoreState s
(* Resetting *)
| IDENT "Reset"; id = identref -> VernacResetName id
| IDENT "Reset"; IDENT "Initial" -> VernacResetInitial
| IDENT "Back" -> VernacBack 1
| IDENT "Back"; n = natural -> VernacBack n
(* Tactic Debugger *)
| IDENT "Debug"; IDENT "On" -> VernacDebug true
| IDENT "Debug"; IDENT "Off" -> VernacDebug false
] ];
END
;;
(* Grammar extensions *)
if not !Options.v7 then
GEXTEND Gram
GLOBAL: syntax;
syntax:
[ [ IDENT "Open"; local = locality; IDENT "Scope"; sc = IDENT ->
VernacOpenCloseScope (local,true,sc)
| IDENT "Close"; local = locality; IDENT "Scope"; sc = IDENT ->
VernacOpenCloseScope (local,false,sc)
| IDENT "Delimit"; IDENT "Scope"; sc = IDENT; "with"; key = IDENT ->
VernacDelimiters (sc,key)
| IDENT "Bind"; IDENT "Scope"; sc = IDENT; "with";
refl = LIST1 class_rawexpr -> VernacBindScope (sc,refl)
| IDENT "Arguments"; IDENT "Scope"; qid = global;
"["; scl = LIST0 opt_scope; "]" -> VernacArgumentsScope (qid,scl)
| IDENT "Infix"; local = locality;
op = ne_string; ":="; p = global;
modl = [ "("; l = LIST1 syntax_modifier SEP ","; ")" -> l | -> [] ];
sc = OPT [ ":"; sc = IDENT -> sc ] ->
VernacInfix (local,(op,modl),p,None,sc)
| IDENT "Notation"; local = locality; id = ident; ":="; c = constr;
b = [ "("; IDENT "only"; IDENT "parsing"; ")" -> true | -> false ] ->
VernacSyntacticDefinition (id,c,local,b)
| IDENT "Notation"; local = locality; s = ne_string; ":="; c = constr;
modl = [ "("; l = LIST1 syntax_modifier SEP ","; ")" -> l | -> [] ];
sc = OPT [ ":"; sc = IDENT -> sc ] ->
VernacNotation (local,c,Some(s,modl),None,sc)
| IDENT "Tactic"; IDENT "Notation"; s = ne_string;
pil = LIST0 production_item; ":="; t = Tactic.tactic ->
VernacTacticGrammar ["",(s,pil),t]
| IDENT "Reserved"; IDENT "Notation"; local = locality; s = ne_string;
l = [ "("; l = LIST1 syntax_modifier SEP ","; ")" -> l | -> [] ]
-> VernacSyntaxExtension (local,Some(s,l),None)
(* "Print" "Grammar" should be here but is in "command" entry in order
to factorize with other "Print"-based vernac entries *)
] ]
;
locality:
[ [ IDENT "Local" -> true | -> false ] ]
;
level:
[ [ IDENT "level"; n = natural -> NumLevel n
| IDENT "next"; IDENT "level" -> NextLevel ] ]
;
syntax_modifier:
[ [ x = IDENT; "at"; lev = level -> SetItemLevel ([x],lev)
| x = IDENT; ","; l = LIST1 IDENT SEP ","; "at";
lev = level -> SetItemLevel (x::l,lev)
| "at"; IDENT "level"; n = natural -> SetLevel n
| IDENT "left"; IDENT "associativity" -> SetAssoc Gramext.LeftA
| IDENT "right"; IDENT "associativity" -> SetAssoc Gramext.RightA
| IDENT "no"; IDENT "associativity" -> SetAssoc Gramext.NonA
| x = IDENT; typ = syntax_extension_type -> SetEntryType (x,typ)
| IDENT "only"; IDENT "parsing" -> SetOnlyParsing
| IDENT "format"; s = [s = STRING -> (loc,s)] -> SetFormat s ] ]
;
syntax_extension_type:
[ [ IDENT "ident" -> ETIdent | IDENT "global" -> ETReference
| IDENT "bigint" -> ETBigint
] ]
;
opt_scope:
[ [ "_" -> None | sc = IDENT -> Some sc ] ]
;
production_item:
[[ s = ne_string -> VTerm s
| nt = non_terminal; po = OPT [ "("; p = ident; ")" -> p ] ->
VNonTerm (loc,nt,po) ]]
;
non_terminal:
[[ u = IDENT; ":"; nt = IDENT ->
NtQual(rename_command_entry u, rename_command_entry nt)
| IDENT "constr" -> NtQual ("constr","constr")
| nt = IDENT -> NtShort (rename_command_entry nt) ]]
;
END
(* Reinstall tactic and vernac extensions *)
let _ =
if not !Options.v7 then
Egrammar.reset_extend_grammars_v8()
|