1 (* Interface to Perl from OCaml.
2 * Copyright (C) 2003 Merjis Ltd.
3 * $Id: perl.ml,v 1.9 2003-10-26 11:22:38 rich Exp $
12 exception Perl_failure of string
14 external create : ?args:string array -> unit -> t
17 (* Initialization. This must happen first, otherwise other parts of the
18 * program will segfault because of a missing interpreter.
20 external c_init : unit -> unit = "perl4caml_init"
22 Callback.register_exception "perl4caml_perl_failure" (Perl_failure "");
23 c_init (); (* Initialise C code. *)
24 (* Create the default interpreter. *)
25 create ~args:[| ""; "-w"; "-e"; "0" |] ();
28 external current_interpreter : unit -> t
29 = "perl4caml_current_interpreter"
31 external destroy : t -> unit
34 external set_context : t -> unit
35 = "perl4caml_set_context"
37 external int_of_sv : sv -> int = "perl4caml_int_of_sv"
38 external sv_of_int : int -> sv = "perl4caml_sv_of_int"
39 external float_of_sv : sv -> float = "perl4caml_float_of_sv"
40 external sv_of_float : float -> sv = "perl4caml_sv_of_float"
41 external string_of_sv : sv -> string = "perl4caml_string_of_sv"
42 external sv_of_string : string -> sv = "perl4caml_sv_of_string"
43 external sv_is_true : sv -> bool = "perl4caml_sv_is_true"
44 external sv_is_undef : sv -> bool = "perl4caml_sv_is_undef"
45 external sv_undef : unit -> sv = "perl4caml_sv_undef"
46 external sv_yes : unit -> sv = "perl4caml_sv_yes"
47 external sv_no : unit -> sv = "perl4caml_sv_no"
49 let sv_true () = sv_of_int 1
50 let sv_false () = sv_of_int 0
52 let bool_of_sv = sv_is_true
53 let sv_of_bool b = if b then sv_true () else sv_false ()
66 external sv_type : sv -> sv_t = "perl4caml_sv_type"
68 let string_of_sv_t = function
69 SVt_NULL -> "SVt_NULL"
74 | SVt_PVAV -> "SVt_PVAV"
75 | SVt_PVHV -> "SVt_PVHV"
76 | SVt_PVCV -> "SVt_PVCV"
77 | SVt_PVGV -> "SVt_PVGV"
78 | SVt_PVMG -> "SVt_PVMG"
80 external scalarref : sv -> sv = "perl4caml_scalarref"
81 external arrayref : av -> sv = "perl4caml_arrayref"
82 external hashref : hv -> sv = "perl4caml_hashref"
84 external deref : sv -> sv = "perl4caml_deref"
85 external deref_array : sv -> av = "perl4caml_deref_array"
86 external deref_hash : sv -> hv = "perl4caml_deref_hash"
88 external av_empty : unit -> av = "perl4caml_av_empty"
89 external av_of_sv_list : sv list -> av = "perl4caml_av_of_sv_list"
90 external av_push : av -> sv -> unit = "perl4caml_av_push"
91 external av_pop : av -> sv = "perl4caml_av_pop"
92 external av_shift : av -> sv = "perl4caml_av_shift"
93 external av_unshift : av -> sv -> unit = "perl4caml_av_unshift"
94 external av_length : av -> int = "perl4caml_av_length"
95 external av_set : av -> int -> sv -> unit = "perl4caml_av_set"
96 external av_get : av -> int -> sv = "perl4caml_av_get"
97 external av_clear : av -> unit = "perl4caml_av_clear"
98 external av_undef : av -> unit = "perl4caml_av_undef"
99 external av_extend : av -> int -> unit = "perl4caml_av_extend"
103 for i = 0 to av_length av - 1 do
104 list := f (av_get av i) :: !list
110 for i = 0 to av_length av - 1 do
111 list := av_get av i :: !list
115 let av_of_string_list strs =
116 av_of_sv_list (List.map sv_of_string strs)
118 external hv_empty : unit -> hv = "perl4caml_hv_empty"
119 external hv_set : hv -> string -> sv -> unit = "perl4caml_hv_set"
120 external hv_get : hv -> string -> sv = "perl4caml_hv_get"
121 external hv_exists : hv -> string -> bool = "perl4caml_hv_exists"
122 external hv_delete : hv -> string -> unit = "perl4caml_hv_delete"
123 external hv_clear : hv -> unit = "perl4caml_hv_clear"
124 external hv_undef : hv -> unit = "perl4caml_hv_undef"
126 external get_sv : ?create:bool -> string -> sv = "perl4caml_get_sv"
127 external get_av : ?create:bool -> string -> av = "perl4caml_get_av"
128 external get_hv : ?create:bool -> string -> hv = "perl4caml_get_hv"
130 external call : ?sv:sv -> ?fn:string -> sv list -> sv
132 external call_array : ?sv:sv -> ?fn:string -> sv list -> sv list
133 = "perl4caml_call_array"
134 external call_void : ?sv:sv -> ?fn:string -> sv list -> unit
135 = "perl4caml_call_void"
137 external eval : string -> sv
140 external call_method : sv -> string -> sv list -> sv
141 = "perl4caml_call_method"
142 external call_method_array : sv -> string -> sv list -> sv list
143 = "perl4caml_call_method_array"
144 external call_method_void : sv -> string -> sv list -> unit
145 = "perl4caml_call_method_void"
146 external call_class_method : string -> string -> sv list -> sv
147 = "perl4caml_call_class_method"
148 external call_class_method_array : string -> string -> sv list -> sv list
149 = "perl4caml_call_class_method_array"
150 external call_class_method_void : string -> string -> sv list -> unit
151 = "perl4caml_call_class_method_void"