Wrappers now automatically 'use' modules.

[perl4caml.git] / perl.ml

diff --git a/perl.ml b/perl.ml
index 7069d35..0f2d9fc 100644 (file)
--- a/perl.ml
+++ b/perl.ml
@@ -1,24 +1,38 @@
 (* Interface to Perl from OCaml.
  * Copyright (C) 2003 Merjis Ltd.
- * $Id: perl.ml,v 1.4 2003-10-12 17:33:14 rich Exp $
+ * $Id: perl.ml,v 1.6 2003-10-15 16:51:12 rich Exp $
  *)
 
 type t
 
 type sv
+type av
 
 exception Perl_failure of string
 
+external create : ?args:string array -> unit -> t
+  = "perl4caml_create"
+
+(* 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 () =
+  (* Leave this debugging message in for now until init support in OCaml
+   * is debugged.
+   *)
+  prerr_endline "perl_init: Initialising Perl support ...";
   Callback.register_exception "perl4caml_perl_failure" (Perl_failure "");
-  c_init ()                            (* Initialise C code. *)
+  c_init ();                           (* Initialise C code. *)
+  (* Create the default interpreter. *)
+  create ~args:[| ""; "-w"; "-e"; "0" |] ();
+  ()
 
-external destroy : unit -> unit
-  = "perl4caml_destroy"
+external current_interpreter : unit -> t
+  = "perl4caml_current_interpreter"
 
-external create : ?args:string array -> unit -> t
-  = "perl4caml_create"
+external destroy : t -> unit
+  = "perl4caml_destroy"
 
 external set_context : t -> unit
   = "perl4caml_set_context"
@@ -54,9 +68,43 @@ type sv_t    = SVt_NULL
 
 external sv_type : sv -> sv_t = "perl4caml_sv_type"
 
+let string_of_sv_t = function
+    SVt_NULL  -> "SVt_NULL"
+  | SVt_IV    -> "SVt_IV"
+  | SVt_NV    -> "SVt_NV"
+  | SVt_PV    -> "SVt_PV"
+  | SVt_RV    -> "SVt_RV"
+  | SVt_PVAV  -> "SVt_PVAV"
+  | SVt_PVHV  -> "SVt_PVHV"
+  | SVt_PVCV  -> "SVt_PVCV"
+  | SVt_PVGV  -> "SVt_PVGV"
+  | SVt_PVMG  -> "SVt_PVMG"
+
 external deref : sv -> sv = "perl4caml_deref"
+external deref_array : sv -> av = "perl4caml_deref_array"
+
+external av_empty : unit -> av = "perl4caml_av_empty"
+external av_of_sv_list : sv list -> av = "perl4caml_av_of_sv_list"
+external av_push : av -> sv -> unit = "perl4caml_av_push"
+external av_pop : av -> sv = "perl4caml_av_pop"
+external av_shift : av -> sv = "perl4caml_av_shift"
+external av_unshift : av -> sv -> unit = "perl4caml_av_unshift"
+external av_length : av -> int = "perl4caml_av_length"
+external av_set : av -> int -> sv -> unit = "perl4caml_av_set"
+external av_get : av -> int -> sv = "perl4caml_av_get"
+external av_clear : av -> unit = "perl4caml_av_clear"
+external av_undef : av -> unit = "perl4caml_av_undef"
+external av_extend : av -> int -> unit = "perl4caml_av_extend"
+
+let av_map f av =
+  let list = ref [] in
+  for i = 0 to av_length av - 1 do
+    list := f (av_get av i) :: !list
+  done;
+  List.rev !list
 
 external get_sv : ?create:bool -> string -> sv = "perl4caml_get_sv"
+external get_av : ?create:bool -> string -> av = "perl4caml_get_av"
 
 external call : ?sv:sv -> ?fn:string -> sv list -> sv
   = "perl4caml_call"