1 (* Interface to Perl from OCaml.
2 * Copyright (C) 2003 Merjis Ltd.
3 * $Id: perl.ml,v 1.15 2005-04-14 13:05:12 rich Exp $
10 exception Perl_failure of string
12 (* Initialization. This must happen first, otherwise other parts of the
13 * program will segfault because of a missing interpreter.
15 external c_init : unit -> unit = "perl4caml_init"
17 Callback.register_exception "perl4caml_perl_failure" (Perl_failure "");
18 c_init (); (* Initialise C code. *)
21 external int_of_sv : sv -> int = "perl4caml_int_of_sv"
22 external sv_of_int : int -> sv = "perl4caml_sv_of_int"
23 external float_of_sv : sv -> float = "perl4caml_float_of_sv"
24 external sv_of_float : float -> sv = "perl4caml_sv_of_float"
25 external string_of_sv : sv -> string = "perl4caml_string_of_sv"
26 external sv_of_string : string -> sv = "perl4caml_sv_of_string"
27 external sv_is_true : sv -> bool = "perl4caml_sv_is_true"
28 external sv_undef : unit -> sv = "perl4caml_sv_undef"
29 external sv_is_undef : sv -> bool = "perl4caml_sv_is_undef"
30 external sv_yes : unit -> sv = "perl4caml_sv_yes"
31 external sv_no : unit -> sv = "perl4caml_sv_no"
33 let sv_true () = sv_of_int 1
34 let sv_false () = sv_of_int 0
36 let bool_of_sv = sv_is_true
37 let sv_of_bool b = if b then sv_true () else sv_false ()
50 external sv_type : sv -> sv_t = "perl4caml_sv_type"
52 let string_of_sv_t = function
53 SVt_NULL -> "SVt_NULL"
58 | SVt_PVAV -> "SVt_PVAV"
59 | SVt_PVHV -> "SVt_PVHV"
60 | SVt_PVCV -> "SVt_PVCV"
61 | SVt_PVGV -> "SVt_PVGV"
62 | SVt_PVMG -> "SVt_PVMG"
64 external reftype : sv -> sv_t = "perl4caml_reftype"
66 external address_of_sv : sv -> Nativeint.t = "perl4caml_address_of_sv"
67 external address_of_av : av -> Nativeint.t = "perl4caml_address_of_av"
68 external address_of_hv : hv -> Nativeint.t = "perl4caml_address_of_hv"
70 external scalarref : sv -> sv = "perl4caml_scalarref"
71 external arrayref : av -> sv = "perl4caml_arrayref"
72 external hashref : hv -> sv = "perl4caml_hashref"
74 external deref : sv -> sv = "perl4caml_deref"
75 external deref_array : sv -> av = "perl4caml_deref_array"
76 external deref_hash : sv -> hv = "perl4caml_deref_hash"
78 external av_empty : unit -> av = "perl4caml_av_empty"
79 external av_of_sv_list : sv list -> av = "perl4caml_av_of_sv_list"
80 external av_push : av -> sv -> unit = "perl4caml_av_push"
81 external av_pop : av -> sv = "perl4caml_av_pop"
82 external av_shift : av -> sv = "perl4caml_av_shift"
83 external av_unshift : av -> sv -> unit = "perl4caml_av_unshift"
84 external av_length : av -> int = "perl4caml_av_length"
85 external av_set : av -> int -> sv -> unit = "perl4caml_av_set"
86 external av_get : av -> int -> sv = "perl4caml_av_get"
87 external av_clear : av -> unit = "perl4caml_av_clear"
88 external av_undef : av -> unit = "perl4caml_av_undef"
89 external av_extend : av -> int -> unit = "perl4caml_av_extend"
93 for i = 0 to av_length av - 1 do
94 list := f (av_get av i) :: !list
100 for i = 0 to av_length av - 1 do
101 list := av_get av i :: !list
105 let av_of_string_list strs =
106 av_of_sv_list (List.map sv_of_string strs)
108 external hv_empty : unit -> hv = "perl4caml_hv_empty"
109 external hv_set : hv -> string -> sv -> unit = "perl4caml_hv_set"
110 external hv_get : hv -> string -> sv = "perl4caml_hv_get"
111 external hv_exists : hv -> string -> bool = "perl4caml_hv_exists"
112 external hv_delete : hv -> string -> unit = "perl4caml_hv_delete"
113 external hv_clear : hv -> unit = "perl4caml_hv_clear"
114 external hv_undef : hv -> unit = "perl4caml_hv_undef"
117 external hv_iterinit : hv -> Int32.t = "perl4caml_hv_iterinit"
118 external hv_iternext : hv -> he = "perl4caml_hv_iternext"
119 external hv_iterkey : he -> string = "perl4caml_hv_iterkey"
120 external hv_iterval : hv -> he -> sv = "perl4caml_hv_iterval"
121 external hv_iternextsv : hv -> string * sv = "perl4caml_hv_iternextsv"
124 let hv = hv_empty () in
125 List.iter (fun (k, v) -> hv_set hv k v) xs;
128 ignore (hv_iterinit hv);
129 (* Someone please rewrite this to make it tail-rec! - Rich. XXX *)
132 let k, v = hv_iternextsv hv in
139 ignore (hv_iterinit hv);
140 (* Someone please rewrite this to make it tail-rec! - Rich. XXX *)
143 let he = hv_iternext hv in
144 let k = hv_iterkey he in
151 ignore (hv_iterinit hv);
152 (* Someone please rewrite this to make it tail-rec! - Rich. XXX *)
155 let he = hv_iternext hv in
156 let v = hv_iterval hv he in
163 external get_sv : ?create:bool -> string -> sv = "perl4caml_get_sv"
164 external get_av : ?create:bool -> string -> av = "perl4caml_get_av"
165 external get_hv : ?create:bool -> string -> hv = "perl4caml_get_hv"
167 external call : ?sv:sv -> ?fn:string -> sv list -> sv
169 external call_array : ?sv:sv -> ?fn:string -> sv list -> sv list
170 = "perl4caml_call_array"
171 external call_void : ?sv:sv -> ?fn:string -> sv list -> unit
172 = "perl4caml_call_void"
174 external eval : string -> sv
177 external call_method : sv -> string -> sv list -> sv
178 = "perl4caml_call_method"
179 external call_method_array : sv -> string -> sv list -> sv list
180 = "perl4caml_call_method_array"
181 external call_method_void : sv -> string -> sv list -> unit
182 = "perl4caml_call_method_void"
183 external call_class_method : string -> string -> sv list -> sv
184 = "perl4caml_call_class_method"
185 external call_class_method_array : string -> string -> sv list -> sv list
186 = "perl4caml_call_class_method_array"
187 external call_class_method_void : string -> string -> sv list -> unit
188 = "perl4caml_call_class_method_void"