utop/src/lib/uTop_private.ml

63 lines
1.5 KiB
OCaml

(*
* uTop_private.ml
* ---------------
* Copyright : (c) 2011, Jeremie Dimino <jeremie@dimino.org>
* Licence : BSD3
*
* This file is a part of utop.
*)
open Lwt_react
module Default_paths = struct
let ( / ) = Filename.concat
let xdg = Xdg.create ~env:Sys.getenv_opt ()
let resolve ~legacy ~filename =
if Sys.file_exists legacy then
legacy
else
filename
let history_file_name =
resolve
~legacy:(LTerm_resources.home / ".utop-history")
~filename:(Xdg.state_dir xdg / "utop-history")
let config_file_name =
resolve
~legacy:(LTerm_resources.home / ".utoprc")
~filename:(Xdg.config_dir xdg / "utoprc")
end
let size, set_size =
let ev, set_size = E.create () in
let init = S.const { LTerm_geom.rows = 25; LTerm_geom.cols = 80 } in
(S.switch (S.hold ~eq:( == ) init ev), set_size)
let key_sequence, set_key_sequence =
let ev, set_key_sequence = E.create () in
let init = (S.const ([] : LTerm_key.t list)) in
(S.switch (S.hold ~eq:( == ) init ev), set_key_sequence)
let count, set_count = S.create (-1)
type ui = Console | Emacs
let ui, set_ui = S.create Console
let error_style = ref LTerm_style.none
(* Config from $XDG_CONFIG_HOME/utop/utoprc *)
let autoload = ref true
let margin_function, set_margin_function =
S.create ~eq:( == ) (fun (size : LTerm_geom.size) -> Some (min 80 size.cols))
let margin = S.app margin_function size
let set_margin pp =
match S.value margin with
| None -> ()
| Some n -> if Format.pp_get_margin pp () <> n then Format.pp_set_margin pp n