Added wrappers around some common libraries.

[perl4caml.git] / perl.ml

diff --git a/perl.ml b/perl.ml
index b8c1012..7069d35 100644 (file)
--- a/perl.ml
+++ b/perl.ml
@@ -1,6 +1,6 @@
 (* Interface to Perl from OCaml.
  * Copyright (C) 2003 Merjis Ltd.
- * $Id: perl.ml,v 1.3 2003-10-12 11:56:26 rich Exp $
+ * $Id: perl.ml,v 1.4 2003-10-12 17:33:14 rich Exp $
  *)
 
 type t
@@ -9,17 +9,17 @@ type sv
 
 exception Perl_failure of string
 
-external init : unit -> unit = "perl4caml_init"
-let () =
+external c_init : unit -> unit = "perl4caml_init"
+let init () =
   Callback.register_exception "perl4caml_perl_failure" (Perl_failure "");
-  init ()                              (* Initialise C code. *)
+  c_init ()                            (* Initialise C code. *)
+
+external destroy : unit -> unit
+  = "perl4caml_destroy"
 
 external create : ?args:string array -> unit -> t
   = "perl4caml_create"
 
-external destroy : t -> unit
-  = "perl4caml_destroy"
-
 external set_context : t -> unit
   = "perl4caml_set_context"
 
@@ -31,13 +31,30 @@ 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_get_undef : unit -> sv = "perl4caml_sv_get_undef"
-external sv_get_yes : unit -> sv = "perl4caml_sv_get_yes"
-external sv_get_no : unit -> sv = "perl4caml_sv_get_no"
+external sv_undef : unit -> sv = "perl4caml_sv_undef"
+external sv_yes : unit -> sv = "perl4caml_sv_yes"
+external sv_no : unit -> sv = "perl4caml_sv_no"
+
+let sv_true () = sv_of_int 1
+let sv_false () = sv_of_int 0
+
+let bool_of_sv = sv_is_true
+let sv_of_bool b = if b then sv_true () else sv_false ()
+
+type sv_t    = SVt_NULL
+             | SVt_IV
+            | SVt_NV
+            | SVt_PV
+            | SVt_RV
+            | SVt_PVAV
+            | SVt_PVHV
+            | SVt_PVCV
+            | SVt_PVGV
+            | SVt_PVMG
+
+external sv_type : sv -> sv_t = "perl4caml_sv_type"
 
-let sv_undef = sv_get_undef ()
-let sv_true = sv_get_yes ()
-let sv_false = sv_get_no ()
+external deref : sv -> sv = "perl4caml_deref"
 
 external get_sv : ?create:bool -> string -> sv = "perl4caml_get_sv"