X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=helm%2FDEVEL%2Flablgtk%2Flablgtk_20000829-0.1.0%2Fapplications%2Fbrowser%2Fshell.ml;fp=helm%2FDEVEL%2Flablgtk%2Flablgtk_20000829-0.1.0%2Fapplications%2Fbrowser%2Fshell.ml;h=0000000000000000000000000000000000000000;hb=c7514aaa249a96c5fdd39b1123fbdb38d92f20b6;hp=fbe0f92a0ea785552bac60b9eb1d084e80475108;hpb=1c7fb836e2af4f2f3d18afd0396701f2094265ff;p=helm.git

diff --git a/helm/DEVEL/lablgtk/lablgtk_20000829-0.1.0/applications/browser/shell.ml b/helm/DEVEL/lablgtk/lablgtk_20000829-0.1.0/applications/browser/shell.ml
deleted file mode 100644
index fbe0f92a0..000000000
--- a/helm/DEVEL/lablgtk/lablgtk_20000829-0.1.0/applications/browser/shell.ml
+++ /dev/null
@@ -1,255 +0,0 @@
-(* $Id$ *)
-
-open GdkKeysyms
-open Printf
-
-(* Nice history class. May reuse *)
-
-class ['a] history () = object
-  val mutable history = ([] : 'a list)
-  val mutable count = 0
-  method empty = history = []
-  method add s = count <- 0; history <- s :: history
-  method previous =
-    let s = List.nth history count in
-    count <- (count + 1) mod List.length history;
-    s
-  method next =
-    let l = List.length history in
-    count <- (l + count - 1) mod l;
-    List.nth history ((l + count - 1) mod l)
-end
-
-(* The shell class. Now encapsulated *)
-
-let protect f x = try f x with _ -> ()
-
-class shell ~prog ~args ~env ?packing ?show () =
-  let (in2,out1) = Unix.pipe ()
-  and (in1,out2) = Unix.pipe ()
-  and (err1,err2) = Unix.pipe () in
-  let _ = List.iter ~f:Unix.set_nonblock [out1;in1;err1] in
-object (self)
-  val textw = GEdit.text ~editable:true ?packing ?show ()
-  val pid = Unix.create_process_env
-      ~prog ~args ~env ~stdin:in2 ~stdout:out2 ~stderr:err2
-  val out = Unix.out_channel_of_descr out1
-  val h = new history ()
-  val mutable alive = true
-  val mutable reading = false
-  val mutable input_start = 0
-  method text = textw
-  method alive = alive
-  method kill () =
-    textw#set_editable false;
-    if alive then begin
-      alive <- false;
-      protect close_out out;
-      List.iter ~f:(protect Unix.close) [in1; err1; in2; out2; err2];
-      try
-	Unix.kill ~pid ~signal:Sys.sigkill;
-	Unix.waitpid pid ~mode:[]; ()
-      with _ -> ()
-    end
-  method interrupt () =
-    if alive then try
-      reading <- false;
-      Unix.kill ~pid ~signal:Sys.sigint
-    with Unix.Unix_error _ -> ()
-  method send s =
-    if alive then try
-      output_string out s;
-      flush out
-    with Sys_error _ -> ()
-  method private read ~fd ~len =
-    try
-      let buf = String.create len in
-      let len = Unix.read fd ~buf ~pos:0 ~len in
-      if len > 0 then begin
-	textw#set_position textw#length;
-	self#insert (String.sub buf ~pos:0 ~len);
-	input_start <- textw#position;
-      end;
-      len
-    with Unix.Unix_error _ -> 0
-  method history (dir : [`next|`previous]) =
-    if not h#empty then begin
-      if reading then begin
-	textw#delete_text ~start:input_start ~stop:textw#position;
-      end else begin
-	reading <- true;
-	input_start <- textw#position
-      end;
-      self#insert (if dir = `previous then h#previous else h#next);
-    end
-  val mutable lexing = false
-  method private lex ~start ~stop:e =
-    if not lexing && start < e then begin
-      lexing <- true;
-      Lexical.tag textw ~start ~stop:e;
-      lexing <- false
-    end
-  method insert ?(lex=true) text =
-    let start = Text.line_start textw in
-    textw#insert text;
-    if lex then self#lex ~start ~stop:(Text.line_end textw)
-  method private keypress c =
-    if not reading & c > " " then begin
-      reading <- true;
-      input_start <- textw#position
-    end
-  method private return () =
-    if reading then reading <- false
-    else input_start <- textw#position;
-    textw#set_position (Text.line_end textw);
-    let s = textw#get_chars ~start:input_start ~stop:textw#position in
-    h#add s;
-    self#send s;
-    self#send "\n"
-  method private paste () =
-    if not reading then begin
-      reading <- true;
-      input_start <- textw#position;
-    end
-  initializer
-    textw#event#connect#key_press ~callback:
-      begin fun ev ->
-	if GdkEvent.Key.keyval ev = _Return && GdkEvent.Key.state ev = []
-	then self#return ()
-	else self#keypress (GdkEvent.Key.string ev);
-        false
-      end;
-    textw#connect#after#insert_text ~callback:
-      begin fun s ~pos ->
-        if not lexing then
-          self#lex ~start:(Text.line_start textw ~pos:(pos - String.length s))
-            ~stop:(Text.line_end textw ~pos)
-      end;
-    textw#connect#after#delete_text ~callback:
-      begin fun ~start:pos ~stop ->
-        if not lexing then
-          self#lex ~start:(Text.line_start textw ~pos)
-            ~stop:(Text.line_end textw ~pos)
-      end;
-    textw#event#connect#button_press ~callback:
-      begin fun ev ->
-	if GdkEvent.Button.button ev = 2 then self#paste ();
-	false
-      end;
-    textw#connect#destroy ~callback:self#kill;
-    GMain.Timeout.add ~ms:100 ~callback:
-      begin fun () ->
-	if alive then begin
-	  List.iter [err1;in1]
-	    ~f:(fun fd -> while self#read ~fd ~len:1024 = 1024 do () done);
-	  true
-	end else false
-      end;
-    ()
-end
-
-(* Specific use of shell, for LablBrowser *)
-
-let shells : (string * shell) list ref = ref []
-
-(* Called before exiting *)
-let kill_all () =
-  List.iter !shells ~f:(fun (_,sh) -> if sh#alive then sh#kill ());
-  shells := []
-let _ = at_exit kill_all
-
-let get_all () =
-  let all = List.filter !shells ~f:(fun (_,sh) -> sh#alive) in
-  shells := all;
-  all
-
-let may_exec prog =
-  try Unix.access prog ~perm:[Unix.X_OK]; true
-  with Unix.Unix_error _ -> false
-
-let f ~prog ~title =
-  let progargs =
-    List.filter ~f:((<>) "") (Str.split ~sep:(Str.regexp " ") prog) in
-  if progargs = [] then () else
-  let prog = List.hd progargs in
-  let path = try Sys.getenv "PATH" with Not_found -> "/bin:/usr/bin" in
-  let exec_path = Str.split ~sep:(Str.regexp":") path in
-  let prog =
-    if not (Filename.is_implicit prog) then
-      if may_exec prog then prog else ""
-    else
-      List.fold_left exec_path ~init:"" ~f:
-	begin fun acc dir ->
-	  if acc <> "" then acc else
-	  let prog = Filename.concat dir prog in
-	  if may_exec prog then prog else acc
-	end
-  in
-  if prog = "" then () else
-  let reg = Str.regexp "TERM=" in
-  let env = Array.map (Unix.environment ()) ~f:
-      begin fun s ->
- 	if Str.string_match ~pat:reg s ~pos:0 then "TERM=dumb" else s
-      end in
-  let load_path =
-    List.flatten (List.map !Config.load_path ~f:(fun dir -> ["-I"; dir])) in
-  let args = Array.of_list (progargs @ load_path) in
-  let current_dir = ref (Unix.getcwd ()) in
-
-  let tl = GWindow.window ~title ~width:500 ~height:300 () in
-  let vbox = GPack.vbox ~packing:tl#add () in
-  let menus = GMenu.menu_bar ~packing:vbox#pack () in
-  let f = new GMenu.factory menus in
-  let accel_group = f#accel_group in
-  let file_menu = f#add_submenu "File"
-  and history_menu = f#add_submenu "History"
-  and signal_menu = f#add_submenu "Signal" in
-
-  let hbox = GPack.hbox ~packing:vbox#add () in
-  let sh = new shell ~prog ~env ~args ~packing:hbox#add () in
-  let sb =
-    GRange.scrollbar `VERTICAL ~adjustment:sh#text#vadjustment
-      ~packing:hbox#pack ()
-  in
-
-  let f = new GMenu.factory file_menu ~accel_group in
-  f#add_item "Use..." ~callback:
-    begin fun () ->
-      File.dialog ~title:"Use File" ~filename:(!current_dir ^ "/") () ~callback:
-	begin fun name ->
-	  current_dir := Filename.dirname name;
-	  if Filename.check_suffix name ".ml" then
-	    let cmd = "#use \"" ^ name ^ "\";;\n" in
-	    sh#insert cmd;
-	    sh#send cmd
-	end
-    end;
-  f#add_item "Load..." ~callback:
-    begin fun () ->
-      File.dialog ~title:"Load File" ~filename:(!current_dir ^ "/") () ~callback:
-	begin fun name ->
-	  current_dir := Filename.dirname name;
-	  if Filename.check_suffix name ".cmo" or
-	    Filename.check_suffix name ".cma"
-	  then
-	    let cmd = Printf.sprintf "#load \"%s\";;\n" name in
-	    sh#insert cmd;
-	    sh#send cmd
-	end
-    end;
-  f#add_item "Import path" ~callback:
-    begin fun () ->
-      List.iter (List.rev !Config.load_path)
-	~f:(fun dir -> sh#send (sprintf "#directory \"%s\";;\n" dir))
-    end;
-  f#add_item "Close" ~key:_W ~callback:tl#destroy;
-
-  let h = new GMenu.factory history_menu ~accel_group ~accel_modi:[`MOD1] in
-  h#add_item "Previous" ~key:_P ~callback:(fun () -> sh#history `previous);
-  h#add_item "Next" ~key:_N ~callback:(fun () -> sh#history `next);
-  let s = new GMenu.factory signal_menu ~accel_group in
-  s#add_item "Interrupt" ~key:_G ~callback:sh#interrupt;
-  s#add_item "Kill" ~callback:sh#kill;
-  shells := (title, sh) :: !shells;
-  tl#add_accel_group accel_group;
-  tl#show ()