Implement visual-order cursor motion.

 src/xdisp.c (Fmove_point_visually): New function.

 lisp/bindings.el (visual-order-cursor-movement): New defcustom.
 (right-char, left-char): Provide visual-order cursor motion by
 calling move-point-visually.  Update the doc strings.

 doc/emacs/basic.texi (Moving Point): Document visual-order-cursor-movement
 and its effect on right-char and left-char.

 doc/lispref/display.texi (Bidirectional Display): Document move-point-visually.

 etc/NEWS: Document the new feature.

1 files changed, 7 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index f5ab7c60ce5..a6c93e7cf67 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -131,6 +131,13 @@ bound to <f11> and M-<f10>, respectively.
 ** In keymaps where SPC scrolls, S-SPC now scrolls in the reverse direction.
 Eg View mode, etc.
 
++++
+** New option `visual-order-cursor-movement'.
+If this is non-nil, cursor motion with arrow keys will follow the
+visual order of characters on the screen: <left> always moves to the
+left, <right> always moves to the right, disregarding the surrounding
+bidirectional context.
+
 ** New command `kmacro-to-register' to store keyboard macros in registers.
 
 ** Shell Script mode