handler:edit-file

This function creates a frame to edit a file.

It invokes the appropriate format handler to open the file (see handler:insert-format-handler).

• (handler:edit-file filename make-default) -> (implements frame:editor<%>)
      filename : (union string #f)
      make-default = (lambda () (make-object frame:text-info-file% filename)) : (-> (implements frame:editor<%>))
  • If filename is a string, this function checks the result of group:get-the-frame-group to see if the filename is already open by a frame in the group.
    • If so, it returns the frame.
    • If not, this function calls handler:find-format-handler with filename.
      • If a handler is found, it is applied to filename and it's result is the final result.
      • If not, make-default is used.
  • If filename is #f, make-default is used.