package mopsa
MOPSA: A Modular and Open Platform for Static Analysis using Abstract Interpretation
Install
Dune Dependency
Authors
Maintainers
Sources
mopsa-analyzer-v1.0.tar.gz
md5=9f673f79708b44a7effb3b6bb3618d2c
sha512=cb91cb428e43a22f1abbcb8219710d0c10a5b3756d0da392d4084b3b3a6157350776c596983e63def344f617d39964e91f244f60c07958695ee5c8c809a9f0f4
doc/src/utils_core/argExt.ml.html
Source file argExt.ml
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(****************************************************************************) (* *) (* This file is part of MOPSA, a Modular Open Platform for Static Analysis. *) (* *) (* Copyright (C) 2017-2019 The MOPSA Project. *) (* *) (* This program is free software: you can redistribute it and/or modify *) (* it under the terms of the GNU Lesser General Public License as published *) (* by the Free Software Foundation, either version 3 of the License, or *) (* (at your option) any later version. *) (* *) (* This program is distributed in the hope that it will be useful, *) (* but WITHOUT ANY WARRANTY; without even the implied warranty of *) (* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *) (* GNU Lesser General Public License for more details. *) (* *) (* You should have received a copy of the GNU Lesser General Public License *) (* along with this program. If not, see <http://www.gnu.org/licenses/>. *) (* *) (****************************************************************************) (** Command-line options. Replacement for [Arg] from the standard library *) type spec = | Unit of (unit -> unit) | Unit_delayed of (unit -> unit) (** [Unit_delayed] functions are only executed after parsing all the arguments, in the order they appear on the command-line. *) | Unit_exit of (unit -> unit) (** As [Unit_delayed], but exit immediately after parsing the command-line and executing all the functions (including [Unit_exit] and [Unit_delayed] options). Useful for [-help]. *) | Bool of (bool -> unit) | Set of bool ref | Clear of bool ref | Int of (int -> unit) | Set_int of int ref | String of (string -> unit) | Set_string of string ref | String_list of (string list -> unit) | Set_string_list of string list ref | Symbol of string list * (string -> unit) | Symbol_delayed of string list * (string -> unit) | Symbol_exit of string list * (string -> unit) type arg = { key: string; doc: string; category: string; default: string; spec: spec; } (** Replacement for [Arg.parse]. Adds delayed Unit arguments. *) let parse (argv: string array) (args:arg list) (handler:string -> unit) (rest:string list -> unit) (msg:string) (help:unit -> unit) : unit = (* separate arg into program name and actual command-line arguments *) let progname, opts = if Array.length argv < 1 then "?", [] else argv.(0), List.tl (Array.to_list argv) in (* Unit_delayed actions are delayed into everything is parsed *) let delayed = ref [] in (* Should we exit at the end of parse? *) let exit_after = ref false in (* utilities *) let to_bool a v = try bool_of_string v with _ -> Printf.eprintf "%s: option %s requires a boolean argument (true or false)\n" progname a; help (); exit 2 and to_int a v = try int_of_string v with _ -> Printf.eprintf "%s: option %s requires an integer argument\n" progname a; help (); exit 2 in (* eat argument list *) let rec eat = function | [] -> () | a::tl -> if a = "" then eat tl else if a = "--" then rest tl else if a.[0] != '-' then ( handler a; eat tl ) else ( (* cut option at '=' if necessary *) let opt, arg = if String.contains a '=' then let i = String.index a '=' in String.sub a 0 i, Some (String.sub a (i+1) (String.length a - i - 1)) else a, None in (* get option argument, either after '=' or in the next command-line argument *) let get_arg () = match arg, tl with | Some x, tl -> x, tl | None, x::tl -> x, tl | None, [] -> Printf.eprintf "%s: option %s requires an argument\n" progname opt; help (); exit 2 and noarg () = if arg <> None then ( Printf.eprintf "%s: option %s has no argument\n" progname opt; help (); exit 2 ) and get_arg_list () = match arg, tl with | Some x, tl -> String.split_on_char ',' x, tl | None, x::tl -> String.split_on_char ',' x, tl | None, [] -> Printf.eprintf "%s: option %s requires an argument\n" progname opt; help (); exit 2 in if List.exists (fun x -> x.key = opt) args then ( let arg = List.find (fun x -> x.key = opt) args in match arg.spec with | Unit_delayed f -> noarg (); delayed := (!delayed)@[f]; eat tl | Unit_exit f -> exit_after := true; noarg (); delayed := (!delayed)@[f]; eat tl | Unit f -> noarg (); f (); eat tl | Set r -> noarg (); r := true; eat tl | Clear r -> noarg (); r := false; eat tl | Bool f -> let v, tl = get_arg () in f (to_bool a v); eat tl | Int f -> let v, tl = get_arg () in f (to_int a v); eat tl | Set_int f -> let v, tl = get_arg () in f := to_int a v; eat tl | String f -> let v, tl = get_arg () in f v; eat tl | Set_string f -> let v, tl = get_arg () in f := v; eat tl | String_list f -> let v, tl = get_arg_list () in f v; eat tl | Set_string_list f -> let v, tl = get_arg_list () in f := (!f)@v; eat tl | Symbol (l,f) -> let v, tl = get_arg () in if not (List.mem v l) then ( Format.eprintf "%s: option %s requires an argument in the list: [%a]\n" progname a Format.(pp_print_list ~pp_sep:(fun fmt () -> pp_print_string fmt ", ") pp_print_string) l; help (); exit 2 ); f v; eat tl | Symbol_delayed (l,f) -> let v, tl = get_arg () in if not (List.mem v l) then ( Format.eprintf "%s: option %s requires an argument in the list: [%a]\n" progname a Format.(pp_print_list ~pp_sep:(fun fmt () -> pp_print_string fmt ", ") pp_print_string) l; help (); exit 2 ); delayed := (!delayed)@[(fun () -> f v)]; eat tl | Symbol_exit (l,f) -> exit_after := true; let v, tl = get_arg () in if not (List.mem v l) then ( Format.eprintf "%s: option %s requires an argument in the list: [%a]\n" progname a Format.(pp_print_list ~pp_sep:(fun fmt () -> pp_print_string fmt ", ") pp_print_string) l; help (); exit 2 ); delayed := (!delayed)@[(fun () -> f v)]; eat tl ) else ( Printf.eprintf "%s: unknown option %s\n" progname a; help (); exit 2 ) ) in eat opts; (* now execute all delayed actions *) List.iter (fun f -> f ()) !delayed; if !exit_after then exit 0
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