1 (* Interface to Perl from OCaml.
2 * Copyright (C) 2003 Merjis Ltd.
3 * $Id: perl.ml,v 1.6 2003-10-15 16:51:12 rich Exp $
11 exception Perl_failure of string
13 external create : ?args:string array -> unit -> t
16 (* Initialization. This must happen first, otherwise other parts of the
17 * program will segfault because of a missing interpreter.
19 external c_init : unit -> unit = "perl4caml_init"
21 (* Leave this debugging message in for now until init support in OCaml
24 prerr_endline "perl_init: Initialising Perl support ...";
25 Callback.register_exception "perl4caml_perl_failure" (Perl_failure "");
26 c_init (); (* Initialise C code. *)
27 (* Create the default interpreter. *)
28 create ~args:[| ""; "-w"; "-e"; "0" |] ();
31 external current_interpreter : unit -> t
32 = "perl4caml_current_interpreter"
34 external destroy : t -> unit
37 external set_context : t -> unit
38 = "perl4caml_set_context"
40 external int_of_sv : sv -> int = "perl4caml_int_of_sv"
41 external sv_of_int : int -> sv = "perl4caml_sv_of_int"
42 external float_of_sv : sv -> int = "perl4caml_float_of_sv"
43 external sv_of_float : int -> sv = "perl4caml_sv_of_float"
44 external string_of_sv : sv -> string = "perl4caml_string_of_sv"
45 external sv_of_string : string -> sv = "perl4caml_sv_of_string"
46 external sv_is_true : sv -> bool = "perl4caml_sv_is_true"
47 external sv_is_undef : sv -> bool = "perl4caml_sv_is_undef"
48 external sv_undef : unit -> sv = "perl4caml_sv_undef"
49 external sv_yes : unit -> sv = "perl4caml_sv_yes"
50 external sv_no : unit -> sv = "perl4caml_sv_no"
52 let sv_true () = sv_of_int 1
53 let sv_false () = sv_of_int 0
55 let bool_of_sv = sv_is_true
56 let sv_of_bool b = if b then sv_true () else sv_false ()
69 external sv_type : sv -> sv_t = "perl4caml_sv_type"
71 let string_of_sv_t = function
72 SVt_NULL -> "SVt_NULL"
77 | SVt_PVAV -> "SVt_PVAV"
78 | SVt_PVHV -> "SVt_PVHV"
79 | SVt_PVCV -> "SVt_PVCV"
80 | SVt_PVGV -> "SVt_PVGV"
81 | SVt_PVMG -> "SVt_PVMG"
83 external deref : sv -> sv = "perl4caml_deref"
84 external deref_array : sv -> av = "perl4caml_deref_array"
86 external av_empty : unit -> av = "perl4caml_av_empty"
87 external av_of_sv_list : sv list -> av = "perl4caml_av_of_sv_list"
88 external av_push : av -> sv -> unit = "perl4caml_av_push"
89 external av_pop : av -> sv = "perl4caml_av_pop"
90 external av_shift : av -> sv = "perl4caml_av_shift"
91 external av_unshift : av -> sv -> unit = "perl4caml_av_unshift"
92 external av_length : av -> int = "perl4caml_av_length"
93 external av_set : av -> int -> sv -> unit = "perl4caml_av_set"
94 external av_get : av -> int -> sv = "perl4caml_av_get"
95 external av_clear : av -> unit = "perl4caml_av_clear"
96 external av_undef : av -> unit = "perl4caml_av_undef"
97 external av_extend : av -> int -> unit = "perl4caml_av_extend"
101 for i = 0 to av_length av - 1 do
102 list := f (av_get av i) :: !list
106 external get_sv : ?create:bool -> string -> sv = "perl4caml_get_sv"
107 external get_av : ?create:bool -> string -> av = "perl4caml_get_av"
109 external call : ?sv:sv -> ?fn:string -> sv list -> sv
111 external call_array : ?sv:sv -> ?fn:string -> sv list -> sv list
112 = "perl4caml_call_array"
113 external call_void : ?sv:sv -> ?fn:string -> sv list -> unit
114 = "perl4caml_call_void"
116 external eval : string -> sv
119 external call_method : sv -> string -> sv list -> sv
120 = "perl4caml_call_method"
121 external call_method_array : sv -> string -> sv list -> sv list
122 = "perl4caml_call_method_array"
123 external call_method_void : sv -> string -> sv list -> unit
124 = "perl4caml_call_method_void"
125 external call_class_method : string -> string -> sv list -> sv
126 = "perl4caml_call_class_method"
127 external call_class_method_array : string -> string -> sv list -> sv list
128 = "perl4caml_call_class_method_array"
129 external call_class_method_void : string -> string -> sv list -> unit
130 = "perl4caml_call_class_method_void"