* buffer.h (struct buffer): Remove unused var `direction_reversed'.

* buffer.c (init_buffer_once, syms_of_buffer): Remove its initialization.

* bidi.c (bidi_initialize): Simplify fallback_paragraph_*_re init.

src/ChangeLog

+2010-04-20  Stefan Monnier  <monnier@iro.umontreal.ca>
+
+	* buffer.h (struct buffer): Remove unused var `direction_reversed'.
+	* buffer.c (init_buffer_once, syms_of_buffer): Remove its initialization.
+
+	* bidi.c (bidi_initialize): Simplify fallback_paragraph_*_re init.
+
 2010-04-20  Eli Zaretskii  <eliz@gnu.org>
 
 	Fix R2L paragraph display on TTY.

src/bidi.c

@@ -399,20 +399,18 @@ bidi_initialize ()
 			  bidi_type[i].to ? bidi_type[i].to : bidi_type[i].from,
 			  make_number (bidi_type[i].type));
 
-  fallback_paragraph_start_re =
-    Fsymbol_value (Fintern_soft (build_string ("paragraph-start"), Qnil));
+  Qparagraph_start = intern ("paragraph-start");
+  staticpro (&Qparagraph_start);
+  fallback_paragraph_start_re = Fsymbol_value (Qparagraph_start);
   if (!STRINGP (fallback_paragraph_start_re))
     fallback_paragraph_start_re = build_string ("\f\\|[ \t]*$");
   staticpro (&fallback_paragraph_start_re);
-  Qparagraph_start = intern ("paragraph-start");
-  staticpro (&Qparagraph_start);
-  fallback_paragraph_separate_re =
-    Fsymbol_value (Fintern_soft (build_string ("paragraph-separate"), Qnil));
+  Qparagraph_separate = intern ("paragraph-separate");
+  staticpro (&Qparagraph_separate);
+  fallback_paragraph_separate_re = Fsymbol_value (Qparagraph_separate);
   if (!STRINGP (fallback_paragraph_separate_re))
     fallback_paragraph_separate_re = build_string ("[ \t\f]*$");
   staticpro (&fallback_paragraph_separate_re);
-  Qparagraph_separate = intern ("paragraph-separate");
-  staticpro (&Qparagraph_separate);
   bidi_initialized = 1;
 }
 
@@ -752,6 +750,7 @@ bidi_peek_at_next_level (struct bidi_it *bidi_it)
 static EMACS_INT
 bidi_at_paragraph_end (EMACS_INT charpos, EMACS_INT bytepos)
 {
+  /* FIXME: Why Fbuffer_local_value rather than just Fsymbol_value?  */
   Lisp_Object sep_re = Fbuffer_local_value (Qparagraph_separate,
 					    Fcurrent_buffer ());
   Lisp_Object start_re = Fbuffer_local_value (Qparagraph_start,
@@ -830,6 +829,7 @@ bidi_line_init (struct bidi_it *bidi_it)
 static EMACS_INT
 bidi_find_paragraph_start (EMACS_INT pos, EMACS_INT pos_byte)
 {
+  /* FIXME: Why Fbuffer_local_value rather than just Fsymbol_value?  */
   Lisp_Object re = Fbuffer_local_value (Qparagraph_start, Fcurrent_buffer ());
   EMACS_INT limit = ZV, limit_byte = ZV_BYTE;
 

src/buffer.c

@@ -5175,7 +5175,6 @@ init_buffer_once ()
   buffer_defaults.word_wrap = Qnil;
   buffer_defaults.ctl_arrow = Qt;
   buffer_defaults.bidi_display_reordering = Qnil;
-  buffer_defaults.direction_reversed = Qnil;
   buffer_defaults.bidi_paragraph_direction = Qnil;
   buffer_defaults.cursor_type = Qt;
   buffer_defaults.extra_line_spacing = Qnil;
@@ -5262,7 +5261,6 @@ init_buffer_once ()
   XSETFASTINT (buffer_local_flags.cache_long_line_scans, idx); ++idx;
   XSETFASTINT (buffer_local_flags.category_table, idx); ++idx;
   XSETFASTINT (buffer_local_flags.bidi_display_reordering, idx); ++idx;
-  XSETFASTINT (buffer_local_flags.direction_reversed, idx); ++idx;
   XSETFASTINT (buffer_local_flags.bidi_paragraph_direction, idx); ++idx;
   XSETFASTINT (buffer_local_flags.buffer_file_coding_system, idx);
   /* Make this one a permanent local.  */
@@ -5784,11 +5782,6 @@ 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 ("direction-reversed",
-		     &current_buffer->direction_reversed, Qnil,
-		     doc: /* Non-nil means set beginning of lines at the right edge of the window.
-See also the variable `bidi-display-reordering'.  */);
-
   DEFVAR_PER_BUFFER ("bidi-display-reordering",
 		     &current_buffer->bidi_display_reordering, Qnil,
 		     doc: /* Non-nil means reorder bidirectional text for display in the visual order.
@@ -5797,12 +5790,12 @@ See also the variable `direction-reversed'.  */);
   DEFVAR_PER_BUFFER ("bidi-paragraph-direction",
 		     &current_buffer->bidi_paragraph_direction, Qnil,
 		     doc: /* *If non-nil, forces directionality of text paragraphs in the buffer.
-			     
+
 If this is nil (the default), the direction of each paragraph is
 determined by the first strong directional character of its text.
 The values of `right-to-left' and `left-to-right' override that.
 Any other value is treated as nil.
-			     
+
 This variable has no effect unless the buffer's value of
 \`bidi-display-reordering' is non-nil.  */);
 

src/buffer.h

@@ -679,9 +679,6 @@ struct buffer
   /* Non-nil means reorder bidirectional text for display in the
      visual order.  */
   Lisp_Object bidi_display_reordering;
-  /* Non-nil means set beginning of lines at the right edge of
-     windows.  */
-  Lisp_Object direction_reversed;
   /* If non-nil, specifies which direction of text to force in all the
      paragraphs of the buffer.  Nil means determine paragraph
      direction dynamically for each paragraph.  */

src/dispextern.h

@@ -1956,6 +1956,7 @@ enum it_method {
   NUM_IT_METHODS
 };
 
+/* FIXME: What is this?  Why 5?  */
 #define IT_STACK_SIZE 5
 
 /* Iterator for composition (both for static and automatic).  */