Function: normal-erase-is-backspace-setup-frame

normal-erase-is-backspace-setup-frame is a byte-compiled function defined in simple.el.gz.

Signature

(normal-erase-is-backspace-setup-frame &optional FRAME)

Documentation

Set up normal-erase-is-backspace-mode on FRAME, if necessary.

Source Code

;; Defined in /usr/src/emacs/lisp/simple.el.gz
(defun normal-erase-is-backspace-setup-frame (&optional frame)
  "Set up `normal-erase-is-backspace-mode' on FRAME, if necessary."
  (unless frame (setq frame (selected-frame)))
  (with-selected-frame frame
    (unless (terminal-parameter nil 'normal-erase-is-backspace)
      (normal-erase-is-backspace-mode
       (if (if (eq normal-erase-is-backspace 'maybe)
               (and (not noninteractive)
                    (or (memq system-type '(ms-dos windows-nt))
			(memq window-system '(w32 ns pgtk haiku android))
                        (and (eq window-system 'x)
                             (fboundp 'x-backspace-delete-keys-p)
                             (x-backspace-delete-keys-p))
                        ;; If the terminal Emacs is running on has erase char
                        ;; set to ^H, use the Backspace key for deleting
                        ;; backward, and the Delete key for deleting forward.
                        (and (null window-system)
                             (eq tty-erase-char ?\^H))))
             normal-erase-is-backspace)
           1 0)))))