jsonpatGenv.ml

(*
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     notice, this list of conditions and the following disclaimer in the
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  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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*)

let version = "0.7.0"

let print_version () = 
  print_string version ; 
  print_newline() ;
  exit 0

type t = {
    prog: string ;
    prog_file: string ;
    inline: bool ;
    files: string list ;
    cmxs: string list ;
    learn: string ;
    print: bool ;
    show_type: bool ;
    threshold: int ;
    version: string ;
    stop: bool ;
    rcode: int ref ;
  }

let string r = Arg.String (fun x -> r := x)
let string_l r = Arg.String (fun x -> r := Str.split (Str.regexp "[ \t,]+") x)
let bool r = Arg.Unit (fun () -> r := true)
let int r = Arg.Int (fun x -> r := x)
let add_file files s = files := s :: !files
let usage = Printf.sprintf "Usage: %s [-f][-p] file\n" Sys.argv.(0)

let make () = 
(* I hate this bloody Arg module ... *)
  let prog = ref "" in
  let prog_file = ref "" in
  let files = ref [] in
  let cmxs = ref [] in
  let learn = ref "" in
  let print = ref false in
  let show_type = ref false in
  let threshold = ref 5 in
  let stop = ref false in
  let options = 
    ["-f", string prog_file, "filename" ;
     "-p", string prog, "inline program" ;
     "-load", string_l cmxs, "list of cmxs modules to load" ;
     "-learn", string learn, "learn a pattern from an example";
     "-print", bool print, "print program and exit" ;
     "-type", bool show_type, "print the type of the input" ;
     "-threshold", int threshold, "threshold for string type inference" ;
     "-version", Arg.Unit print_version, "prints the current version" ;
     "-stop", bool stop, "stop on error" ;
   ] in
  Arg.parse options (add_file files) usage ;
  { prog = !prog ;
    prog_file = !prog_file ;
    inline = !prog <> "" ;
    files = List.rev !files ;
    cmxs = List.rev !cmxs ;
    learn = !learn ;
    print = !print ;
    show_type = !show_type ;
    threshold = !threshold ;
    version = version ;
    stop = !stop ;
    rcode = ref 0 ;
}