1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
(************************************************************************)
(* v * The Coq Proof Assistant / The Coq Development Team *)
(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2010 *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(************************************************************************)
(* tag is the tag to be hooked, item is the item covered by this tag, make_menu
* * is the template for building menu if needed, sel_cb is the callback if
* there
* * is a selection o said menu, hover_cb is the callback when there is only
* * hovering *)
let hook_tag_cb tag menu_content sel_cb hover_cb =
ignore (tag#connect#event ~callback:
(fun ~origin evt it ->
let iter = new GText.iter it in
let start = iter#backward_to_tag_toggle (Some tag) in
let stop = iter#forward_to_tag_toggle (Some tag) in
match GdkEvent.get_type evt with
| `BUTTON_PRESS ->
let ev = GdkEvent.Button.cast evt in
if (GdkEvent.Button.button ev) <> 3 then false else begin
let ctxt_menu = GMenu.menu () in
let factory = new GMenu.factory ctxt_menu in
List.iter
(fun (text,cmd) -> ignore (factory#add_item text ~callback:(sel_cb cmd)))
menu_content;
ctxt_menu#popup ~button:3 ~time:(GdkEvent.Button.time ev);
true
end
| `MOTION_NOTIFY ->
hover_cb start stop; false
| _ -> false))
let mode_tactic sel_cb (proof:GText.view) goals hints = match goals with
| [] -> assert false
| { Interface.goal_hyp = hyps; Interface.goal_ccl = cur_goal; } :: rem_goals ->
let on_hover sel_start sel_stop =
proof#buffer#remove_tag
~start:proof#buffer#start_iter
~stop:sel_start
Tags.Proof.highlight;
proof#buffer#remove_tag
~start:sel_stop
~stop:proof#buffer#end_iter
Tags.Proof.highlight;
proof#buffer#apply_tag ~start:sel_start ~stop:sel_stop Tags.Proof.highlight
in
let goals_cnt = List.length rem_goals + 1 in
let head_str = Printf.sprintf
"%d subgoal%s\n" goals_cnt (if 1 < goals_cnt then "" else "s")
in
let goal_str index total = Printf.sprintf
"______________________________________(%d/%d)\n" index total
in
(* Insert current goal and its hypotheses *)
let hyps_hints, goal_hints = match hints with
| None -> [], []
| Some (hl, h) -> (hl, h)
in
let rec insert_hyp hints hs = match hs with
| [] -> ()
| hyp :: hs ->
let tags, rem_hints = match hints with
| [] -> [], []
| hint :: hints ->
let tag = proof#buffer#create_tag [] in
let () = hook_tag_cb tag hint sel_cb on_hover in
[tag], hints
in
let () = proof#buffer#insert ~tags (hyp ^ "\n") in
insert_hyp rem_hints hs
in
let () = proof#buffer#insert head_str in
let () = insert_hyp hyps_hints hyps in
let () =
let tags = Tags.Proof.goal :: if goal_hints <> [] then
let tag = proof#buffer#create_tag [] in
let () = hook_tag_cb tag goal_hints sel_cb on_hover in
[tag]
else []
in
proof#buffer#insert (goal_str 1 goals_cnt);
proof#buffer#insert ~tags cur_goal;
proof#buffer#insert "\n"
in
(* Insert remaining goals (no hypotheses) *)
let fold_goal i _ { Interface.goal_ccl = g } =
proof#buffer#insert (goal_str i goals_cnt);
proof#buffer#insert (g ^ "\n")
in
let () = Minilib.list_fold_left_i fold_goal 2 () rem_goals in
ignore(proof#buffer#place_cursor
~where:(proof#buffer#end_iter#backward_to_tag_toggle
(Some Tags.Proof.goal)));
ignore(proof#scroll_to_mark ~use_align:true ~yalign:0.95 `INSERT)
let mode_cesar (proof:GText.view) = function
| [] -> assert false
| { Interface.goal_hyp = hyps; Interface.goal_ccl = cur_goal; } :: _ ->
proof#buffer#insert " *** Declarative Mode ***\n";
List.iter
(fun hyp -> proof#buffer#insert (hyp^"\n"))
hyps;
proof#buffer#insert "______________________________________\n";
proof#buffer#insert ("thesis := \n "^cur_goal^"\n");
ignore (proof#scroll_to_iter (proof#buffer#get_iter_at_mark `INSERT))
let display mode (view:GText.view) goals hints evars =
let () = view#buffer#set_text "" in
match goals with
| None -> ()
(* No proof in progress *)
| Some { Interface.fg_goals = []; Interface.bg_goals = [] } ->
(* A proof has been finished, but not concluded *)
begin match evars with
| Some evs when evs <> [] ->
view#buffer#insert "No more subgoals but non-instantiated existential variables:\n\n";
let iter evar =
let msg = Printf.sprintf "%s\n" evar.Interface.evar_info in
view#buffer#insert msg
in
List.iter iter evs
| _ ->
view#buffer#insert "No more subgoals."
end
| Some { Interface.fg_goals = []; Interface.bg_goals = bg } ->
(* No foreground proofs, but still unfocused ones *)
view#buffer#insert "This subproof is complete, but there are still unfocused goals:\n\n";
let iter goal =
let msg = Printf.sprintf "%s\n" goal.Interface.goal_ccl in
view#buffer#insert msg
in
List.iter iter bg
| Some { Interface.fg_goals = fg } ->
mode view fg hints
|
