mirror of
https://github.com/QuantumPackage/qp2.git
synced 2024-11-03 12:43:48 +01:00
129 lines
2.8 KiB
OCaml
129 lines
2.8 KiB
OCaml
(** Handles command-line arguments, using getopt.
|
|
|
|
Example:
|
|
|
|
let () =
|
|
|
|
(* Command-line specs *)
|
|
let open Command_line in
|
|
begin
|
|
set_header_doc (Sys.argv.(0) ^ " - quantum_package command");
|
|
set_description_doc
|
|
"Opens a text editor to edit the parameters of an EZFIO directory.";
|
|
|
|
[ { short='c'; long="check"; opt=Optional;
|
|
doc="Checks the input data";
|
|
arg=Without_arg; };
|
|
|
|
{ short='n'; long="ndet"; opt=Optional;
|
|
doc="Truncate the wavefunction to the target number of determinants";
|
|
arg=With_arg "<int>"; };
|
|
|
|
{ short='s'; long="state"; opt=Optional;
|
|
doc="Extract selected states, for example \"[1,3-5]\"";
|
|
arg=With_arg "<range>"; };
|
|
|
|
anonymous "EZFIO_DIR" Mandatory "EZFIO directory";
|
|
]
|
|
|> set_specs ;
|
|
|
|
end;
|
|
|
|
|
|
(* Handle options *)
|
|
let ndet =
|
|
match Command_line.get "ndet" with
|
|
| None -> None
|
|
| Some s -> (try Some (int_of_string s)
|
|
with _ -> failwith "[-n|--ndet] expects an integer")
|
|
in
|
|
let state =
|
|
match Command_line.get "state" with
|
|
| None -> None
|
|
| Some s -> (try Some (Range.of_string s)
|
|
with _ -> failwith "[-s|--state] expects a range")
|
|
in
|
|
|
|
let c = Command_line.get_bool "check" in
|
|
|
|
let filename =
|
|
match Command_line.anon_args () with
|
|
| [x] -> x
|
|
| _ -> (Command_line.help () ; failwith "EZFIO_DIR is missing")
|
|
in
|
|
|
|
(* Run the program *)
|
|
run c ?ndet ?state filename
|
|
|
|
|
|
*)
|
|
|
|
|
|
exception Error of string
|
|
|
|
type short_opt = char
|
|
|
|
type long_opt = string
|
|
|
|
type optional = Mandatory
|
|
| Optional
|
|
|
|
type documentation = string
|
|
|
|
type argument = With_arg of string
|
|
| Without_arg
|
|
| With_opt_arg of string
|
|
|
|
|
|
type description =
|
|
{
|
|
short : short_opt;
|
|
long : long_opt;
|
|
opt : optional;
|
|
doc : documentation;
|
|
arg : argument;
|
|
}
|
|
|
|
|
|
(** Sets the header of the help message. *)
|
|
val set_header_doc : string -> unit
|
|
|
|
|
|
(** Sets the description of the help message. *)
|
|
val set_description_doc : string -> unit
|
|
|
|
(** Sets the footer of the help message. *)
|
|
val set_footer_doc : string -> unit
|
|
|
|
|
|
(** Gets the value of an option. If the option is not set, returns [None]. If
|
|
the option is set, returns Some <string>. *)
|
|
val get : string -> string option
|
|
|
|
|
|
(** Gets the value of an option with no argument. If the option is set, returns [true]. *)
|
|
val get_bool : string -> bool
|
|
|
|
|
|
(** True if the '-h' or "--help" option was found. *)
|
|
val show_help : unit -> bool
|
|
|
|
|
|
(** Creates a specification of an anonymous argument. *)
|
|
val anonymous : long_opt -> optional -> documentation -> description
|
|
|
|
|
|
(** Prints the help message *)
|
|
val help : unit -> unit
|
|
|
|
|
|
(** Sets the specification list as a list of tuples:
|
|
( short option, long option, documentation, argument ) *)
|
|
val set_specs : description list -> unit
|
|
|
|
|
|
(** Returns the list of anonymous arguments *)
|
|
val anon_args : unit -> string list
|
|
|
|
|