+++ /dev/null
-(* Please keep me in sync with brion.inria.fr/gallium/index.php/Lambda_calculus_quotations *)
-
-open Camlp4.PreCast;;
-module CamlSyntax = Camlp4OCamlParser.Make(Camlp4OCamlRevisedParser.Make(Syntax));;
-
-let expr_of_string = CamlSyntax.Gram.parse_string CamlSyntax.expr_eoi;;
-
-module LambdaGram = MakeGram(Lexer);;
-
-let term = LambdaGram.Entry.mk "term";;
-let term_eoi = LambdaGram.Entry.mk "lambda term quotation";;
-
-Camlp4_config.antiquotations := true;;
-
-EXTEND LambdaGram
- GLOBAL: term term_eoi;
- term:
- [ "top"
- [ "fun"; v = var; "->"; t = term -> <:expr< `Lam(var $v$, $t$) >>
- | "fun"; v = var; v' = var; "->"; t = term -> <:expr< `Lam(var $v$, `Lam(var $v'$, $t$)) >>
- | "fun"; v = var; v' = var; v'' = var; "->"; t = term -> <:expr< `Lam(var $v$, `Lam(var $v'$, `Lam(var $v''$, $t$))) >>
- | "fun"; v = var; v' = var; v'' = var; v''' = var; "->"; t = term -> <:expr< `Lam(var $v$, `Lam(var $v'$, `Lam(var $v''$, `Lam(var $v'''$, $t$)))) >>
- | "fun"; v = var; v' = var; v'' = var; v''' = var; v'''' = var; "->"; t = term -> <:expr< `Lam(var $v$, `Lam(var $v'$, `Lam(var $v''$, `Lam(var $v'''$, `Lam(var $v''''$, $t$))))) >>
- ]
-
- | "app"
- [ t1 = SELF; t2 = SELF -> <:expr< `App($t1$, $t2$) >> ]
-
- | "simple"
- [ `ANTIQUOT((""|"term"), a) -> expr_of_string _loc a
- | v = var -> <:expr< `Var(var $v$) >>
- | "("; t = term; ")" -> t
- ]
-
- ];
- var:
- [[ v = LIDENT -> <:expr< $str:v$ >>
- | `ANTIQUOT((""|"var"), a) -> expr_of_string _loc a
- ]];
- term_eoi:
- [[ t = term; `EOI -> t ]];
-END;;
-
-let expand_lambda_quot_expr loc _loc_name_opt quotation_contents =
- LambdaGram.parse_string term_eoi loc quotation_contents;;
-
-(* to have this syntax <:lam< fun k -> k >> *)
-Syntax.Quotation.add "lam" Syntax.Quotation.DynAst.expr_tag expand_lambda_quot_expr;;
-
-Syntax.Quotation.default := "lam";;
-