Implement bidi-sensitive movement with arrow keys.

 src/bidi.c (bidi_paragraph_init): Don't leave alone garbage values
 of bidi_it->paragraph_dir.  Call bidi_initialize if needed.
 src/xdisp.c (Fcurrent_bidi_paragraph_direction): New function.
 (syms_of_xdisp): Defsubr it.
 src/cmds.c (Fforward_char, Fbackward_char): Doc fix.
 src/subr.el (right-arrow-command, left-arrow-command): New functions.
 src/bindings.el (global-map): Bind them to right and left arrow keys.
 etc/NEWS: Mention current-bidi-paragraph-direction

1 files changed, 3 insertions, 0 deletions

diff --git a/etc/NEWS b/etc/NEWS
index a60962cf1f4..715dc12c467 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -63,6 +63,9 @@ according to the value of this variable.  Possible values are
 default), Emacs determines the base direction of each paragraph from
 its text, as specified by the Unicode Bidirectional Algorithm.
 
+The function `current-bidi-paragraph-direction' returns the actual
+value of paragraph base direction at point.
+
 Reordering of bidirectional text for display in Emacs is a "Full
 bidirectionality" class implementation of the Unicode Bidirectional
 Algorithm.