use octave-link instead of hook for edit function * octave-main-thread.cc (edit_hook_fcn): Delete. (octave_main_thread::run): Don't install callback function for edit function. * octave-qt-link.h, octave-qt-link.cc (octave_qt_link::do_edit_file): Pass file as string instead of octave_value_list. Return status. * interpfcn/octave-link.h, interpfcn/octave-link.cc: Move here from interp-core directory. * libinterp/interp-core/module.mk, libinterp/interpfcn/module.mk: Update file lists. * octave-link.h: Don't include oct-obj.h. (octave_link::edit_file, octave_link::do_edit_file): Return bool. * octave-link.cc (F__octave_link_edit_file__): New function. * edit.m: Call __octave_link_edit_file__ instead of __execute_edit_hook__. * __execute_edit_hook__.cc: Delete * libinterp/corefcn/module.mk (COREFCN_SRC): Remove it from the list.

--- a/libgui/src/octave-qt-link.cc
+++ b/libgui/src/octave-qt-link.cc
@@ -122,25 +122,19 @@
     }
 }
 
-void
-octave_qt_link::do_edit_file (const octave_value_list& args)
+bool
+octave_qt_link::do_edit_file (const std::string& file)
 {
+  bool retval = false;
+
   if (event_listener)
     {
-      if (args.length () == 1)
-        {
-          std::string file = args(0).string_value ();
+      event_listener->edit_file (file);
 
-          if (! error_state)
-            {
-              event_listener->edit_file (file);
-              do_process_events ();
+      do_process_events ();
 
-            }
-          else
-            ::error ("expecting file name in edit file callback");
-        }
-      else
-        ::error ("invalid call to edit file callback");
+      retval = true;
     }
+
+  return retval;
 }