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Diffstat (limited to 'lib/edit.ml')
-rw-r--r-- | lib/edit.ml | 134 |
1 files changed, 0 insertions, 134 deletions
diff --git a/lib/edit.ml b/lib/edit.ml deleted file mode 100644 index 882303a6..00000000 --- a/lib/edit.ml +++ /dev/null @@ -1,134 +0,0 @@ -(************************************************************************) -(* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2011 *) -(* \VV/ **************************************************************) -(* // * This file is distributed under the terms of the *) -(* * GNU Lesser General Public License Version 2.1 *) -(************************************************************************) - -(* $Id: edit.ml 14641 2011-11-06 11:59:10Z herbelin $ *) - -open Pp -open Util - -type ('a,'b,'c) t = { - mutable focus : 'a option; - mutable last_focused_stk : 'a list; - buf : ('a, 'b Bstack.t * 'c) Hashtbl.t } - -let empty () = { - focus = None; - last_focused_stk = []; - buf = Hashtbl.create 17 } - -let focus e nd = - if not (Hashtbl.mem e.buf nd) then invalid_arg "Edit.focus"; - begin match e.focus with - | Some foc when foc <> nd -> - e.last_focused_stk <- foc::(list_except foc e.last_focused_stk); - | _ -> () - end; - e.focus <- Some nd - -let unfocus e = - match e.focus with - | None -> invalid_arg "Edit.unfocus" - | Some foc -> - begin - e.last_focused_stk <- foc::(list_except foc e.last_focused_stk); - e.focus <- None - end - -let last_focused e = - match e.last_focused_stk with - | [] -> None - | f::_ -> Some f - -let restore_last_focus e = - match e.last_focused_stk with - | [] -> () - | f::_ -> focus e f - -let focusedp e = - match e.focus with - | None -> false - | _ -> true - -let read e = - match e.focus with - | None -> None - | Some d -> - let (bs,c) = Hashtbl.find e.buf d in - Some(d,Bstack.top bs,c) - -let mutate e f = - match e.focus with - | None -> invalid_arg "Edit.mutate" - | Some d -> - let (bs,c) = Hashtbl.find e.buf d in - Bstack.app_push bs (f c) - -let rev_mutate e f = - match e.focus with - | None -> invalid_arg "Edit.rev_mutate" - | Some d -> - let (bs,c) = Hashtbl.find e.buf d in - Bstack.app_repl bs (f c) - -let undo e n = - match e.focus with - | None -> invalid_arg "Edit.undo" - | Some d -> - let (bs,_) = Hashtbl.find e.buf d in - if n >= Bstack.size bs then - errorlabstrm "Edit.undo" (str"Undo stack exhausted"); - repeat n Bstack.pop bs - -(* Return the depth of the focused proof of [e] stack, this is used to - put informations in coq prompt (in emacs mode). *) -let depth e = - match e.focus with - | None -> invalid_arg "Edit.depth" - | Some d -> - let (bs,_) = Hashtbl.find e.buf d in - Bstack.depth bs - -(* Undo focused proof of [e] to reach depth [n] *) -let undo_todepth e n = - match e.focus with - | None -> - if n <> 0 - then errorlabstrm "Edit.undo_todepth" (str"No proof in progress") - else () (* if there is no proof in progress, then n must be zero *) - | Some d -> - let (bs,_) = Hashtbl.find e.buf d in - let ucnt = Bstack.depth bs - n in - if ucnt >= Bstack.size bs then - errorlabstrm "Edit.undo_todepth" (str"Undo stack would be exhausted"); - repeat ucnt Bstack.pop bs - -let create e (d,b,c,usize) = - if Hashtbl.mem e.buf d then - errorlabstrm "Edit.create" - (str"Already editing something of that name"); - let bs = Bstack.create usize b in - Hashtbl.add e.buf d (bs,c) - -let delete e d = - if not(Hashtbl.mem e.buf d) then - errorlabstrm "Edit.delete" (str"No such editor"); - Hashtbl.remove e.buf d; - e.last_focused_stk <- (list_except d e.last_focused_stk); - match e.focus with - | Some d' -> if d = d' then (e.focus <- None ; (restore_last_focus e)) - | None -> () - -let dom e = - let l = ref [] in - Hashtbl.iter (fun x _ -> l := x :: !l) e.buf; - !l - -let clear e = - e.focus <- None; - e.last_focused_stk <- []; - Hashtbl.clear e.buf |