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(***********************************************************************)
(* *)
(* Objective Caml *)
(* *)
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1996 Institut National de Recherche en Informatique et *)
(* en Automatique. All rights reserved. This file is distributed *)
(* under the terms of the Q Public License version 1.0. *)
(* *)
(***********************************************************************)
(* $Id: parsecmmaux.ml 2553 1999-11-17 18:59:06Z xleroy $ *)
(* Auxiliary functions for parsing *)
type error =
Unbound of string
exception Error of error
let tbl_ident = (Hashtbl.create 57 : (string, Ident.t) Hashtbl.t)
let bind_ident s =
let id = Ident.create s in
Hashtbl.add tbl_ident s id;
id
let find_ident s =
try
Hashtbl.find tbl_ident s
with Not_found ->
raise(Error(Unbound s))
let unbind_ident id =
Hashtbl.remove tbl_ident (Ident.name id)
let report_error = function
Unbound s ->
prerr_string "Unbound identifier "; prerr_string s; prerr_endline "."
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