(* Interface to Perl from OCaml.
* Copyright (C) 2003 Merjis Ltd.
- * $Id: perl.ml,v 1.5 2003-10-14 16:05:21 rich Exp $
+ * $Id: perl.ml,v 1.11 2003-12-11 17:41:52 rich Exp $
*)
-type t
-
type sv
type av
+type hv
exception Perl_failure of string
+(* Initialization. This must happen first, otherwise other parts of the
+ * program will segfault because of a missing interpreter.
+ *)
external c_init : unit -> unit = "perl4caml_init"
-let init () =
+let () =
Callback.register_exception "perl4caml_perl_failure" (Perl_failure "");
- c_init () (* Initialise C code. *)
-
-external destroy : unit -> unit
- = "perl4caml_destroy"
-
-external create : ?args:string array -> unit -> t
- = "perl4caml_create"
-
-external set_context : t -> unit
- = "perl4caml_set_context"
+ c_init (); (* Initialise C code. *)
+ ()
external int_of_sv : sv -> int = "perl4caml_int_of_sv"
external sv_of_int : int -> sv = "perl4caml_sv_of_int"
-external float_of_sv : sv -> int = "perl4caml_float_of_sv"
-external sv_of_float : int -> sv = "perl4caml_sv_of_float"
+external float_of_sv : sv -> float = "perl4caml_float_of_sv"
+external sv_of_float : float -> sv = "perl4caml_sv_of_float"
external string_of_sv : sv -> string = "perl4caml_string_of_sv"
external sv_of_string : string -> sv = "perl4caml_sv_of_string"
external sv_is_true : sv -> bool = "perl4caml_sv_is_true"
-external sv_is_undef : sv -> bool = "perl4caml_sv_is_undef"
external sv_undef : unit -> sv = "perl4caml_sv_undef"
external sv_yes : unit -> sv = "perl4caml_sv_yes"
external sv_no : unit -> sv = "perl4caml_sv_no"
| SVt_PVMG
external sv_type : sv -> sv_t = "perl4caml_sv_type"
+let sv_is_undef sv =
+ SVt_NULL = sv_type sv
let string_of_sv_t = function
SVt_NULL -> "SVt_NULL"
| SVt_PVGV -> "SVt_PVGV"
| SVt_PVMG -> "SVt_PVMG"
+external scalarref : sv -> sv = "perl4caml_scalarref"
+external arrayref : av -> sv = "perl4caml_arrayref"
+external hashref : hv -> sv = "perl4caml_hashref"
+
external deref : sv -> sv = "perl4caml_deref"
external deref_array : sv -> av = "perl4caml_deref_array"
+external deref_hash : sv -> hv = "perl4caml_deref_hash"
external av_empty : unit -> av = "perl4caml_av_empty"
external av_of_sv_list : sv list -> av = "perl4caml_av_of_sv_list"
done;
List.rev !list
+let list_of_av av =
+ let list = ref [] in
+ for i = 0 to av_length av - 1 do
+ list := av_get av i :: !list
+ done;
+ List.rev !list
+
+let av_of_string_list strs =
+ av_of_sv_list (List.map sv_of_string strs)
+
+external hv_empty : unit -> hv = "perl4caml_hv_empty"
+external hv_set : hv -> string -> sv -> unit = "perl4caml_hv_set"
+external hv_get : hv -> string -> sv = "perl4caml_hv_get"
+external hv_exists : hv -> string -> bool = "perl4caml_hv_exists"
+external hv_delete : hv -> string -> unit = "perl4caml_hv_delete"
+external hv_clear : hv -> unit = "perl4caml_hv_clear"
+external hv_undef : hv -> unit = "perl4caml_hv_undef"
+
external get_sv : ?create:bool -> string -> sv = "perl4caml_get_sv"
external get_av : ?create:bool -> string -> av = "perl4caml_get_av"
+external get_hv : ?create:bool -> string -> hv = "perl4caml_get_hv"
external call : ?sv:sv -> ?fn:string -> sv list -> sv
= "perl4caml_call"