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-(************************************************************************)
-(* v * The Coq Proof Assistant / The Coq Development Team *)
-(* <O___,, * CNRS-Ecole Polytechnique-INRIA Futurs-Universite Paris Sud *)
-(* \VV/ **************************************************************)
-(* // * This file is distributed under the terms of the *)
-(* * GNU Lesser General Public License Version 2.1 *)
-(************************************************************************)
-
-(* $Id: g_ltacnew.ml4,v 1.22.2.3 2005/06/21 15:31:12 herbelin Exp $ *)
-
-open Pp
-open Util
-open Ast
-open Topconstr
-open Rawterm
-open Tacexpr
-open Vernacexpr
-open Ast
-open Pcoq
-open Prim
-open Tactic
-
-type let_clause_kind =
- | LETTOPCLAUSE of Names.identifier * constr_expr
- | LETCLAUSE of
- (Names.identifier Util.located * raw_tactic_expr option * raw_tactic_arg)
-
-let fail_default_value = Genarg.ArgArg 0
-
-let out_letin_clause loc = function
- | LETTOPCLAUSE _ -> user_err_loc (loc, "", (str "Syntax Error"))
- | LETCLAUSE (id,c,d) -> (id,c,d)
-
-let make_letin_clause loc = List.map (out_letin_clause loc)
-
-let arg_of_expr = function
- TacArg a -> a
- | e -> Tacexp (e:raw_tactic_expr)
-
-(* Tactics grammar rules *)
-
-let tactic_expr = Gram.Entry.create "tactic:tactic_expr"
-
-if not !Options.v7 then
-GEXTEND Gram
- GLOBAL: tactic Vernac_.command tactic_expr tactic_arg constr_may_eval;
-
- tactic_expr:
- [ "5" LEFTA
- [ ta0 = tactic_expr; ";"; ta1 = tactic_expr -> TacThen (ta0, ta1)
- | ta = tactic_expr; ";"; "["; lta = LIST0 tactic_expr SEP "|"; "]" ->
- TacThens (ta, lta) ]
- | "4"
- [ ]
- | "3" RIGHTA
- [ IDENT "try"; ta = tactic_expr -> TacTry ta
- | IDENT "do"; n = int_or_var; ta = tactic_expr -> TacDo (n,ta)
- | IDENT "repeat"; ta = tactic_expr -> TacRepeat ta
- | IDENT "progress"; ta = tactic_expr -> TacProgress ta
- | IDENT "info"; tc = tactic_expr -> TacInfo tc
-(*To do: put Abstract in Refiner*)
- | IDENT "abstract"; tc = NEXT -> TacAbstract (tc,None)
- | IDENT "abstract"; tc = NEXT; "using"; s = base_ident ->
- TacAbstract (tc,Some s) ]
-(*End of To do*)
- | "2" RIGHTA
- [ ta0 = tactic_expr; "||"; ta1 = tactic_expr -> TacOrelse (ta0,ta1) ]
- | "1" RIGHTA
- [ "fun"; it = LIST1 input_fun ; "=>"; body = tactic_expr ->
- TacFun (it,body)
- | "let"; IDENT "rec"; rcl = LIST1 rec_clause SEP "with"; "in";
- body = tactic_expr -> TacLetRecIn (rcl,body)
- | "let"; llc = LIST1 let_clause SEP "with"; "in";
- u = tactic_expr -> TacLetIn (make_letin_clause loc llc,u)
- | "match"; IDENT "goal"; "with"; mrl = match_context_list; "end" ->
- TacMatchContext (false,mrl)
- | "match"; IDENT "reverse"; IDENT "goal"; "with";
- mrl = match_context_list; "end" ->
- TacMatchContext (true,mrl)
- | "match"; c = tactic_expr; "with"; mrl = match_list; "end" ->
- TacMatch (c,mrl)
- | IDENT "first" ; "["; l = LIST0 tactic_expr SEP "|"; "]" ->
- TacFirst l
- | IDENT "solve" ; "["; l = LIST0 tactic_expr SEP "|"; "]" ->
- TacSolve l
- | IDENT "idtac"; s = [ s = STRING -> s | -> ""] -> TacId s
- | IDENT "fail"; n = [ n = int_or_var -> n | -> fail_default_value ];
- s = [ s = STRING -> s | -> ""] -> TacFail (n,s)
- | st = simple_tactic -> TacAtom (loc,st)
- | a = may_eval_arg -> TacArg(a)
- | IDENT "constr"; ":"; c = Constr.constr ->
- TacArg(ConstrMayEval(ConstrTerm c))
- | IDENT "ipattern"; ":"; ipat = simple_intropattern ->
- TacArg(IntroPattern ipat)
- | r = reference; la = LIST1 tactic_arg ->
- TacArg(TacCall (loc,r,la))
- | r = reference -> TacArg (Reference r) ]
- | "0"
- [ "("; a = tactic_expr; ")" -> a
- | a = tactic_atom -> TacArg a ] ]
- ;
- (* Tactic arguments *)
- tactic_arg:
- [ [ IDENT "ltac"; ":"; a = tactic_expr LEVEL "0" -> arg_of_expr a
- | IDENT "ipattern"; ":"; ipat = simple_intropattern -> IntroPattern ipat
- | a = may_eval_arg -> a
- | a = tactic_atom -> a
- | c = Constr.constr -> ConstrMayEval (ConstrTerm c) ] ]
- ;
- may_eval_arg:
- [ [ c = constr_eval -> ConstrMayEval c
- | IDENT "fresh"; s = OPT STRING -> TacFreshId s ] ]
- ;
- constr_eval:
- [ [ IDENT "eval"; rtc = red_expr; "in"; c = Constr.constr ->
- ConstrEval (rtc,c)
- | IDENT "context"; id = identref; "["; c = Constr.lconstr; "]" ->
- ConstrContext (id,c)
- | IDENT "type"; IDENT "of"; c = Constr.constr ->
- ConstrTypeOf c ] ]
- ;
- constr_may_eval: (* For extensions *)
- [ [ c = constr_eval -> c
- | c = Constr.constr -> ConstrTerm c ] ]
- ;
- tactic_atom:
- [ [ id = METAIDENT -> MetaIdArg (loc,id)
- | r = reference -> Reference r
- | "()" -> TacVoid ] ]
- ;
- input_fun:
- [ [ "_" -> None
- | l = base_ident -> Some l ] ]
- ;
- let_clause:
- [ [ id = identref; ":="; te = tactic_expr ->
- LETCLAUSE (id, None, arg_of_expr te)
- | id = identref; args = LIST1 input_fun; ":="; te = tactic_expr ->
- LETCLAUSE (id, None, arg_of_expr (TacFun(args,te))) ] ]
- ;
- rec_clause:
- [ [ name = identref; it = LIST1 input_fun; ":="; body = tactic_expr ->
- (name,(it,body)) ] ]
- ;
- match_pattern:
- [ [ IDENT "context"; oid = OPT Constr.ident;
- "["; pc = Constr.lconstr_pattern; "]" ->
- Subterm (oid, pc)
- | pc = Constr.lconstr_pattern -> Term pc ] ]
- ;
- match_hyps:
- [ [ na = name; ":"; mp = match_pattern -> Hyp (na, mp) ] ]
- ;
- match_context_rule:
- [ [ largs = LIST0 match_hyps SEP ","; "|-"; mp = match_pattern;
- "=>"; te = tactic_expr -> Pat (largs, mp, te)
- | "["; largs = LIST0 match_hyps SEP ","; "|-"; mp = match_pattern;
- "]"; "=>"; te = tactic_expr -> Pat (largs, mp, te)
- | "_"; "=>"; te = tactic_expr -> All te ] ]
- ;
- match_context_list:
- [ [ mrl = LIST1 match_context_rule SEP "|" -> mrl
- | "|"; mrl = LIST1 match_context_rule SEP "|" -> mrl ] ]
- ;
- match_rule:
- [ [ mp = match_pattern; "=>"; te = tactic_expr -> Pat ([],mp,te)
- | "_"; "=>"; te = tactic_expr -> All te ] ]
- ;
- match_list:
- [ [ mrl = LIST1 match_rule SEP "|" -> mrl
- | "|"; mrl = LIST1 match_rule SEP "|" -> mrl ] ]
- ;
-
- (* Definitions for tactics *)
-(*
- deftok:
- [ [ IDENT "Meta"
- | IDENT "Tactic" ] ]
- ;
-*)
- tacdef_body:
- [ [ name = identref; it=LIST1 input_fun; ":="; body = tactic_expr ->
- (name, TacFun (it, body))
- | name = identref; ":="; body = tactic_expr ->
- (name, body) ] ]
- ;
- tactic:
- [ [ tac = tactic_expr -> tac ] ]
- ;
- Vernac_.command:
- [ [ IDENT "Ltac";
- l = LIST1 tacdef_body SEP "with" ->
- VernacDeclareTacticDefinition (true, l) ] ]
- ;
- END
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 15:20:13 +0000