Function: hexl-follow-ascii-mode

hexl-follow-ascii-mode is an interactive and byte-compiled function defined in hexl.el.gz.

Signature

(hexl-follow-ascii-mode &optional ARG)

Documentation

Minor mode to follow ASCII in current Hexl buffer.

When following is enabled, the ASCII character corresponding to the element under the point is highlighted. The default activation is controlled by hexl-follow-ascii(var)/hexl-follow-ascii(fun).

This is a minor mode. If called interactively, toggle the Hexl-Follow-Ascii mode mode. If the prefix argument is positive, enable the mode, and if it is zero or negative, disable the mode.

If called from Lisp, toggle the mode if ARG is toggle. Enable the mode if ARG is nil, omitted, or is a positive number. Disable the mode if ARG is a negative number.

To check whether the minor mode is enabled in the current buffer, evaluate hexl-follow-ascii-mode(var)/hexl-follow-ascii-mode(fun).

The mode's hook is called both when the mode is enabled and when it is disabled.

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/hexl.el.gz
(define-minor-mode hexl-follow-ascii-mode
  "Minor mode to follow ASCII in current Hexl buffer.

When following is enabled, the ASCII character corresponding to the
element under the point is highlighted.
The default activation is controlled by `hexl-follow-ascii'."
  :global nil
  (if hexl-follow-ascii-mode
      ;; turn it on
      (progn
        (unless hexl-ascii-overlay
	  (setq hexl-ascii-overlay (make-overlay (point) (point)))
	  (overlay-put hexl-ascii-overlay 'face 'highlight))
        (add-hook 'post-command-hook #'hexl-follow-ascii-find nil t))
      ;; turn it off
      (when hexl-ascii-overlay
        (delete-overlay hexl-ascii-overlay)
        (setq hexl-ascii-overlay nil))
      (remove-hook 'post-command-hook #'hexl-follow-ascii-find t)))