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|
(***********************************************************************)
(* *)
(* OCaml *)
(* *)
(* 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. *)
(* *)
(***********************************************************************)
(* $Id$ *)
type t =
Lident of string
| Ldot of t * string
| Lapply of t * t
let rec flat accu = function
Lident s -> s :: accu
| Ldot(lid, s) -> flat (s :: accu) lid
| Lapply(_, _) -> Misc.fatal_error "Longident.flat"
let flatten lid = flat [] lid
let last = function
Lident s -> s
| Ldot(_, s) -> s
| Lapply(_, _) -> Misc.fatal_error "Longident.last"
let rec split_at_dots s pos =
try
let dot = String.index_from s pos '.' in
String.sub s pos (dot - pos) :: split_at_dots s (dot + 1)
with Not_found ->
[String.sub s pos (String.length s - pos)]
let parse s =
match split_at_dots s 0 with
[] -> Lident "" (* should not happen, but don't put assert false
so as not to crash the toplevel (see Genprintval) *)
| hd :: tl -> List.fold_left (fun p s -> Ldot(p, s)) (Lident hd) tl
|
