3 files changed, 39 insertions, 40 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 0bb16514b58..f1ba519d92a 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,17 @@
+2011-11-01  Eli Zaretskii  <eliz@gnu.org>
+
+        * xdisp.c (mouse_face_from_buffer_pos): Fix a typo in a comment.
+        Don't stop backward scan on the continuation glyph, even though
+        its CHARPOS is positive.
+        (mouse_face_from_buffer_pos, note_mouse_highlight): Rename
+        cover_string to disp_string.
+
+2011-11-01  Martin Rudalics  <rudalics@gmx.at>
+
+        * window.c (temp_output_buffer_show): Don't use
+        Vtemp_buffer_show_specifiers.
+        (Vtemp_buffer_show_specifiers): Remove unused variable.
+
 2011-10-30  Eli Zaretskii  <eliz@gnu.org>
 
         * xdisp.c (try_cursor_movement): Make sure ROW isn't decremented
diff --git a/src/window.c b/src/window.c
index e6840a0ebe7..056da1512da 100644
--- a/src/window.c
+++ b/src/window.c
@@ -3187,10 +3187,7 @@ temp_output_buffer_show (register Lisp_Object buf)
     call1 (Vtemp_buffer_show_function, buf);
   else
     {
-      window = display_buffer (buf, Vtemp_buffer_show_specifiers, Qnil);
-      /* Reset Vtemp_buffer_show_specifiers immediately so it won't
-         affect subsequent calls.  */
-      Vtemp_buffer_show_specifiers = Qnil;
+      window = display_buffer (buf, Qnil, Qnil);
 
       if (!EQ (XWINDOW (window)->frame, selected_frame))
         Fmake_frame_visible (WINDOW_FRAME (XWINDOW (window)));
@@ -6465,16 +6462,6 @@ If this function is used, then it must do the entire job of showing
 the buffer; `temp-buffer-show-hook' is not run unless this function runs it.  */);
   Vtemp_buffer_show_function = Qnil;
 
-  DEFVAR_LISP ("temp-buffer-show-specifiers", Vtemp_buffer_show_specifiers,
-               doc: /* Buffer display specifiers used by `with-output-to-temp-buffer'.
-These specifiers are passed by `with-output-to-temp-buffer' as second
-argument to `display-buffer'.  Applications should only let-bind this
-around a call to `with-output-to-temp-buffer'.
-
-For a description of buffer display specifiers see the variable
-`display-buffer-alist'.  */);
-  Vtemp_buffer_show_specifiers = Qnil;
-
   DEFVAR_LISP ("minibuffer-scroll-window", Vminibuf_scroll_window,
                doc: /* Non-nil means it is the window that C-M-v in minibuffer should scroll.  */);
   Vminibuf_scroll_window = Qnil;
diff --git a/src/xdisp.c b/src/xdisp.c
index 4362d2dc7a9..b7fc1141e28 100644
--- a/src/xdisp.c
+++ b/src/xdisp.c
@@ -26046,7 +26046,7 @@ rows_from_pos_range (struct window *w,
    for the overlay or run of text properties specifying the mouse
    face.  BEFORE_STRING and AFTER_STRING, if non-nil, are a
    before-string and after-string that must also be highlighted.
-   COVER_STRING, if non-nil, is a display string that may cover some
+   DISP_STRING, if non-nil, is a display string that may cover some
    or all of the highlighted text.  */
 
 static void
@@ -26057,7 +26057,7 @@ mouse_face_from_buffer_pos (Lisp_Object window,
                             EMACS_INT end_charpos,
                             Lisp_Object before_string,
                             Lisp_Object after_string,
-                            Lisp_Object cover_string)
+                            Lisp_Object disp_string)
 {
   struct window *w = XWINDOW (window);
   struct glyph_row *first = MATRIX_FIRST_TEXT_ROW (w->current_matrix);
@@ -26066,7 +26066,7 @@ mouse_face_from_buffer_pos (Lisp_Object window,
   EMACS_INT ignore, pos;
   int x;
 
-  xassert (NILP (cover_string) || STRINGP (cover_string));
+  xassert (NILP (disp_string) || STRINGP (disp_string));
   xassert (NILP (before_string) || STRINGP (before_string));
   xassert (NILP (after_string) || STRINGP (after_string));
 
@@ -26076,7 +26076,7 @@ mouse_face_from_buffer_pos (Lisp_Object window,
     r1 = MATRIX_ROW (w->current_matrix, XFASTINT (w->window_end_vpos));
   /* If the before-string or display-string contains newlines,
      rows_from_pos_range skips to its last row.  Move back.  */
-  if (!NILP (before_string) || !NILP (cover_string))
+  if (!NILP (before_string) || !NILP (disp_string))
     {
       struct glyph_row *prev;
       while ((prev = r1 - 1, prev >= first)
@@ -26088,7 +26088,7 @@ mouse_face_from_buffer_pos (Lisp_Object window,
           while (--glyph >= beg && INTEGERP (glyph->object));
           if (glyph < beg
               || !(EQ (glyph->object, before_string)
-                   || EQ (glyph->object, cover_string)))
+                   || EQ (glyph->object, disp_string)))
             break;
           r1 = prev;
         }
@@ -26113,10 +26113,10 @@ mouse_face_from_buffer_pos (Lisp_Object window,
         r2 = next;
     }
   /* The rest of the display engine assumes that mouse_face_beg_row is
-     either above below mouse_face_end_row or identical to it.  But
-     with bidi-reordered continued lines, the row for START_CHARPOS
-     could be below the row for END_CHARPOS.  If so, swap the rows and
-     store them in correct order.  */
+     either above mouse_face_end_row or identical to it.  But with
+     bidi-reordered continued lines, the row for START_CHARPOS could
+     be below the row for END_CHARPOS.  If so, swap the rows and store
+     them in correct order.  */
   if (r1->y > r2->y)
     {
       struct glyph_row *tem = r2;
@@ -26131,7 +26131,7 @@ mouse_face_from_buffer_pos (Lisp_Object window,
   hlinfo->mouse_face_end_row = MATRIX_ROW_VPOS (r2, w->current_matrix);
 
   /* For a bidi-reordered row, the positions of BEFORE_STRING,
-     AFTER_STRING, COVER_STRING, START_CHARPOS, and END_CHARPOS
+     AFTER_STRING, DISP_STRING, START_CHARPOS, and END_CHARPOS
      could be anywhere in the row and in any order.  The strategy
      below is to find the leftmost and the rightmost glyph that
      belongs to either of these 3 strings, or whose position is
@@ -26157,11 +26157,11 @@ mouse_face_from_buffer_pos (Lisp_Object window,
           x += glyph->pixel_width;
 
       /* Scan the glyph row, looking for BEFORE_STRING, AFTER_STRING,
-         or COVER_STRING, and the first glyph from buffer whose
+         or DISP_STRING, and the first glyph from buffer whose
          position is between START_CHARPOS and END_CHARPOS.  */
       for (; glyph < end
              && !INTEGERP (glyph->object)
-             && !EQ (glyph->object, cover_string)
+             && !EQ (glyph->object, disp_string)
              && !(BUFFERP (glyph->object)
                   && (glyph->charpos >= start_charpos
                       && glyph->charpos < end_charpos));
@@ -26208,11 +26208,11 @@ mouse_face_from_buffer_pos (Lisp_Object window,
           ;
 
       /* Scan the glyph row, looking for BEFORE_STRING, AFTER_STRING,
-         or COVER_STRING, and the first glyph from buffer whose
+         or DISP_STRING, and the first glyph from buffer whose
          position is between START_CHARPOS and END_CHARPOS.  */
       for (; glyph > end
              && !INTEGERP (glyph->object)
-             && !EQ (glyph->object, cover_string)
+             && !EQ (glyph->object, disp_string)
              && !(BUFFERP (glyph->object)
                   && (glyph->charpos >= start_charpos
                       && glyph->charpos < end_charpos));
@@ -26268,17 +26268,16 @@ mouse_face_from_buffer_pos (Lisp_Object window,
          row, and also blanks and stretch glyphs inserted by
          extend_face_to_end_of_line.  */
       while (end > glyph
-             && INTEGERP ((end - 1)->object)
-             && (end - 1)->charpos <= 0)
+             && INTEGERP ((end - 1)->object))
         --end;
       /* Scan the rest of the glyph row from the end, looking for the
          first glyph that comes from BEFORE_STRING, AFTER_STRING, or
-         COVER_STRING, or whose position is between START_CHARPOS
+         DISP_STRING, or whose position is between START_CHARPOS
          and END_CHARPOS */
       for (--end;
              end > glyph
              && !INTEGERP (end->object)
-             && !EQ (end->object, cover_string)
+             && !EQ (end->object, disp_string)
              && !(BUFFERP (end->object)
                   && (end->charpos >= start_charpos
                       && end->charpos < end_charpos));
@@ -26315,20 +26314,19 @@ mouse_face_from_buffer_pos (Lisp_Object window,
       x = r2->x;
       end++;
       while (end < glyph
-             && INTEGERP (end->object)
-             && end->charpos <= 0)
+             && INTEGERP (end->object))
         {
           x += end->pixel_width;
           ++end;
         }
       /* Scan the rest of the glyph row from the end, looking for the
          first glyph that comes from BEFORE_STRING, AFTER_STRING, or
-         COVER_STRING, or whose position is between START_CHARPOS
+         DISP_STRING, or whose position is between START_CHARPOS
          and END_CHARPOS */
       for ( ;
              end < glyph
              && !INTEGERP (end->object)
-             && !EQ (end->object, cover_string)
+             && !EQ (end->object, disp_string)
              && !(BUFFERP (end->object)
                   && (end->charpos >= start_charpos
                       && end->charpos < end_charpos));
@@ -27323,7 +27321,7 @@ note_mouse_highlight (struct frame *f, int x, int y)
               /* The mouse-highlighting, if any, comes from an overlay
                  or text property in the buffer.  */
               Lisp_Object buffer IF_LINT (= Qnil);
-              Lisp_Object cover_string IF_LINT (= Qnil);
+              Lisp_Object disp_string IF_LINT (= Qnil);
 
               if (STRINGP (object))
                 {
@@ -27337,13 +27335,13 @@ note_mouse_highlight (struct frame *f, int x, int y)
                       mouse_face = get_char_property_and_overlay
                         (make_number (pos), Qmouse_face, w->buffer, &overlay);
                       buffer = w->buffer;
-                      cover_string = object;
+                      disp_string = object;
                     }
                 }
               else
                 {
                   buffer = object;
-                  cover_string = Qnil;
+                  disp_string = Qnil;
                 }
 
               if (!NILP (mouse_face))
@@ -27395,7 +27393,7 @@ note_mouse_highlight (struct frame *f, int x, int y)
                                               XFASTINT (before),
                                               XFASTINT (after),
                                               before_string, after_string,
-                                              cover_string);
+                                              disp_string);
                   cursor = No_Cursor;
                 }
             }