* http://helm.cs.unibo.it/
*)
+open Printf
+
+open MatitaTypes
+
+type callback = string -> command_outcome
+
let default_prompt = "# "
let default_phrase_sep = "."
-let default_callback = fun (phrase: string) -> ()
+let default_callback = fun (phrase: string) -> (true, true)
+let bullet = "∙"
let message_props = [ `STYLE `ITALIC ]
let error_props = [ `WEIGHT `BOLD ]
let trailing_NL_RE = Pcre.regexp "\n\\s*$"
-exception History_failure
-
- (** shell like phrase history *)
-class history size =
- let size = size + 1 in
- let decr x = let x' = x - 1 in if x' < 0 then size + x' else x' in
- let incr x = (x + 1) mod size in
- object
- val data = Array.create size ""
- val mutable hd = 0 (* insertion point *)
- val mutable tl = -1 (* oldest inserted item *)
- val mutable cur = -1 (* current item for the history *)
- method add s =
- data.(hd) <- s;
- if tl = -1 then tl <- hd;
- hd <- incr hd;
- if hd = tl then tl <- incr tl;
- cur <- hd
- method previous =
- if cur = tl then raise History_failure;
- cur <- decr cur;
- data.(cur)
- method next =
- if cur = hd then raise History_failure;
- cur <- incr cur;
- if cur = hd then "" else data.(cur)
- end
-
class console
?(prompt = default_prompt) ?(phrase_sep = default_phrase_sep)
- ?(callback = default_callback) ?evbox obj
+ ?(callback = default_callback) ?evbox ~(paned:GPack.paned) obj
=
+ let console_height = 100 in (* pixels *)
object (self)
inherit GText.view obj
method ignore_insert_text_signal ignore =
_ignore_insert_text_signal <- ignore
- val history = new history BuildTimeConf.console_history_size
+ val history =
+ new MatitaMisc.shell_history BuildTimeConf.console_history_size
+
+ val mutable handle_position = 450
+ val mutable last_phrase = ""
initializer
let buf = self#buffer in
self#set_wrap_mode `CHAR;
+ self#hide ();
(* create "USER_INPUT_START" mark. This mark will always point to the
* beginning of user input not yet processed *)
ignore (buf#create_mark ~name:"USER_INPUT_START"
~left_gravity:true buf#start_iter);
+ MatitaGtkMisc.connect_key self#event ~modifiers:[`CONTROL] ~stop:true
+ GdkKeysyms._Return
+ (fun () ->
+ buf#insert ~iter:buf#end_iter "\n";
+ let inserted_text =
+ MatitaMisc.strip_trailing_blanks
+ (buf#get_text
+ ~start:(buf#get_iter_at_mark (`NAME "USER_INPUT_START"))
+ ~stop:buf#end_iter ())
+ in
+ self#invoke_callback inserted_text;
+ self#echo_prompt ());
+
+(*
+ (* callback handling based on phrase terminator (e.g. ";;" at the end of
+ * the row: each time a character is inserted *)
ignore (buf#connect#after#insert_text (fun iter text ->
if (not _ignore_insert_text_signal) &&
(iter#compare buf#end_iter = 0) && (* insertion at end *)
(Pcre.pmatch ~rex:trailing_NL_RE text)
then
let inserted_text =
- buf#get_text
- ~start:(buf#get_iter_at_mark (`NAME "USER_INPUT_START"))
- ~stop:buf#end_iter ()
+ MatitaMisc.strip_trailing_blanks
+ (buf#get_text
+ ~start:(buf#get_iter_at_mark (`NAME "USER_INPUT_START"))
+ ~stop:buf#end_iter ())
in
let pat = (Pcre.quote _phrase_sep) ^ "\\s*$" in
if Pcre.pmatch ~pat inserted_text then begin (* complete phrase *)
self#lock;
+ last_phrase <- inserted_text;
self#invoke_callback inserted_text;
self#echo_prompt ()
end));
+*)
(match evbox with (* history key bindings *)
| None -> ()
| Some evbox ->
buf#insert ~iter:buf#end_iter phrase
method private invoke_callback phrase =
- history#add (* do not push trailing phrase separator *)
- (String.sub phrase 0
- (String.length phrase - String.length _phrase_sep));
- _callback phrase
+ history#add phrase;
+ let (success, hide) = _callback phrase in
+ if hide then self#hide ()
+
+ method clear () =
+ let buf = self#buffer in
+ buf#delete ~start:buf#start_iter ~stop:buf#end_iter
(* lock old text and bump USER_INPUT_START mark *)
method private lock =
self#lock
method echo_message msg =
+ self#show ();
let buf = self#buffer in
self#ignore_insert_text_signal true;
buf#insert ~iter:buf#end_iter ~tags:[buf#create_tag message_props]
self#lock
method echo_error msg =
+ self#show ();
let buf = self#buffer in
self#ignore_insert_text_signal true;
buf#insert ~iter:buf#end_iter ~tags:[buf#create_tag error_props]
self#ignore_insert_text_signal false;
self#lock
+ method private get_paned_prop s =
+ Gobject.get { Gobject.name = s; Gobject.conv = Gobject.Data.int }
+ paned#as_widget
+ method private get_position = self#get_paned_prop "position"
+ method private get_min_position = self#get_paned_prop "min-position"
+ method private get_max_position = self#get_paned_prop "max-position"
+
+ method show ?(msg = "") () =
+ self#buffer#insert msg;
+ paned#set_position (self#get_max_position - console_height);
+ self#misc#grab_focus ()
+ method hide () = (* ZACK still not sure about the gui, for the moment just
+ * keep the console persistent *)
+ ()
+(* paned#set_position self#get_max_position *)
+ method toggle () =
+ let pos = self#get_position in
+ if pos > self#get_max_position - console_height then
+ self#show ()
+ else
+ self#hide ()
+
(** navigation methods: history, cursor motion, ... *)
method private previous_phrase =
- try self#set_phrase history#previous with History_failure -> ()
+ try self#set_phrase history#previous with MatitaMisc.History_failure -> ()
method private next_phrase =
- try self#set_phrase history#next with History_failure -> ()
+ try self#set_phrase history#next with MatitaMisc.History_failure -> ()
+
+ method wrap_exn: 'a. (unit -> 'a) -> 'a option =
+ fun f ->
+ try
+ Some (f ())
+ with exn ->
+ (match exn with (* highlight parse errors in user input *)
+ | CicTextualParser2.Parse_error (floc, msg) ->
+ let buf = self#buffer in
+ let (x, y) = CicAst.loc_of_floc floc in
+ let red = buf#create_tag [`FOREGROUND "red"] in
+ let (start_error_pos, end_error_pos) =
+ buf#end_iter#backward_chars (String.length last_phrase - x),
+ buf#end_iter#backward_chars (String.length last_phrase - y)
+ in
+ if x - y = 0 then (* no region to highlight, let's add an hint
+ about where the error occured *)
+ buf#insert ~iter:end_error_pos ~tags:[red] bullet
+ else (* highlight the region where the error occured *)
+ buf#apply_tag red ~start:start_error_pos ~stop:end_error_pos;
+ | _ -> ());
+ self#echo_error (explain exn);
+ None
end
let console
?(prompt = default_prompt) ?(phrase_sep = default_phrase_sep)
- ?(callback = default_callback) ?evbox
+ ?(callback = default_callback) ?evbox ~paned
?buffer ?editable ?cursor_visible ?justification ?wrap_mode ?border_width
?width ?height ?packing ?show ()
=
?buffer ?editable ?cursor_visible ?justification ?wrap_mode ?border_width
?width ?height ?packing ?show ()
in
- new console ~prompt ~phrase_sep ~callback ?evbox view#as_view
+ new console ~prompt ~phrase_sep ~callback ?evbox ~paned view#as_view
+(* vim: set encoding=utf8: *)
projects / helm.git / blobdiff