Turn on bidi-display-reordering by default.

 src/buffer.c (init_buffer_once, syms_of_buffer): Set
 bidi-display-reordering to t by default.
 doc/emacs/mule.texi (Bidirectional Editing): Document the fact that
 bidi-display-reordering is t by default.
 lispref/display.texi (Bidirectional Display): Document the fact that
 bidi-display-reordering is t by default.

7 files changed, 24 insertions, 6 deletions

diff --git a/doc/emacs/ChangeLog b/doc/emacs/ChangeLog
index e10b9a83a43..794771e24d3 100644
--- a/doc/emacs/ChangeLog
+++ b/doc/emacs/ChangeLog
@@ -1,3 +1,8 @@
+2011-07-28  Eli Zaretskii  <eliz@gnu.org>
+
+        * mule.texi (Bidirectional Editing): Document the fact that
+        bidi-display-reordering is t by default.
+
 2011-07-15  Lars Magne Ingebrigtsen  <larsi@gnus.org>
 
         * help.texi (Misc Help): Mention `describe-prefix-bindings'
diff --git a/doc/emacs/mule.texi b/doc/emacs/mule.texi
index 3c970ecb12c..4f1683ef5ea 100644
--- a/doc/emacs/mule.texi
+++ b/doc/emacs/mule.texi
@@ -1703,7 +1703,7 @@ Annex #9, for reordering of bidirectional text for display.
 whether text in the buffer is reordered for display.  If its value is
 non-@code{nil}, Emacs reorders characters that have right-to-left
 directionality when they are displayed.  The default value is
-@code{nil}.
+@code{t}.
 
   Each paragraph of bidirectional text can have its own @dfn{base
 direction}, either right-to-left or left-to-right.  (Paragraph
diff --git a/doc/lispref/ChangeLog b/doc/lispref/ChangeLog
index d59bbf87bce..f08ee3a227c 100644
--- a/doc/lispref/ChangeLog
+++ b/doc/lispref/ChangeLog
@@ -1,3 +1,8 @@
+2011-07-28  Eli Zaretskii  <eliz@gnu.org>
+
+        * display.texi (Bidirectional Display): Document the fact that
+        bidi-display-reordering is t by default.
+
 2011-07-23  Eli Zaretskii  <eliz@gnu.org>
 
         * display.texi (Bidirectional Display): New section.
diff --git a/doc/lispref/display.texi b/doc/lispref/display.texi
index 903232bcbda..077d0992232 100644
--- a/doc/lispref/display.texi
+++ b/doc/lispref/display.texi
@@ -6007,7 +6007,7 @@ a ``Full bidirectionality'' class implementation of the @acronym{UBA}.
 whether text in the buffer is reordered for display.  If its value is
 non-@code{nil}, Emacs reorders characters that have right-to-left
 directionality when they are displayed.  The default value is
-@code{nil}.  Text in overlay strings (@pxref{Overlay
+@code{t}.  Text in overlay strings (@pxref{Overlay
 Properties,,before-string}), display strings (@pxref{Overlay
 Properties,,display}), and @code{display} text properties
 (@pxref{Display Property}) is also reordered if the buffer whose text
diff --git a/etc/NEWS b/etc/NEWS
index ffce9da51e4..7b5d81b613f 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -173,8 +173,11 @@ in your ~/.authinfo file instead.
 See the node "Bidirectional Editing" in the Emacs Manual for some
 additional documentation.
 
-To turn this on in any given buffer, set the buffer-local variable
-`bidi-display-reordering' to a non-nil value.  The default is nil.
+To turn this off in any given buffer, set the buffer-local variable
+`bidi-display-reordering' to a nil value.  The default is t.  For text
+that includes no right-to-left characters, the result of reordering
+looks exactly as it did in previous versions, i.e. there's no
+reordering at all.
 
 The buffer-local variable `bidi-paragraph-direction', if non-nil,
 forces each paragraph in the buffer to have its base direction
diff --git a/src/ChangeLog b/src/ChangeLog
index eef9cede561..8c24a1f4741 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2011-07-28  Eli Zaretskii  <eliz@gnu.org>
+
+        * buffer.c (init_buffer_once, syms_of_buffer): Set
+        bidi-display-reordering to t by default.
+
 2011-07-28  Paul Eggert  <eggert@cs.ucla.edu>
 
         * alloc.c (memory_full) [!SYNC_INPUT]: Fix signal-related race.
diff --git a/src/buffer.c b/src/buffer.c
index a40275db8de..79800490fd1 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -4926,7 +4926,7 @@ init_buffer_once (void)
   BVAR (&buffer_defaults, truncate_lines) = Qnil;
   BVAR (&buffer_defaults, word_wrap) = Qnil;
   BVAR (&buffer_defaults, ctl_arrow) = Qt;
-  BVAR (&buffer_defaults, bidi_display_reordering) = Qnil;
+  BVAR (&buffer_defaults, bidi_display_reordering) = Qt;
   BVAR (&buffer_defaults, bidi_paragraph_direction) = Qnil;
   BVAR (&buffer_defaults, cursor_type) = Qt;
   BVAR (&buffer_defaults, extra_line_spacing) = Qnil;
@@ -5500,7 +5500,7 @@ The variable `coding-system-for-write', if non-nil, overrides this variable.
 This variable is never applied to a way of decoding a file while reading it.  */);
 
   DEFVAR_PER_BUFFER ("bidi-display-reordering",
-                     &BVAR (current_buffer, bidi_display_reordering), Qnil,
+                     &BVAR (current_buffer, bidi_display_reordering), Qt,
                      doc: /* Non-nil means reorder bidirectional text for display in the visual order.  */);
 
   DEFVAR_PER_BUFFER ("bidi-paragraph-direction",