[Emacs-diffs] Changes to emacs/src/xdisp.c,v

[Chong Yidong]

CVSROOT:        /sources/emacs
Module name:    emacs
Changes by:     Chong Yidong <cyd>      08/07/05 18:22:57

Index: xdisp.c
===================================================================
RCS file: /sources/emacs/emacs/src/xdisp.c,v
retrieving revision 1.1229
retrieving revision 1.1230
diff -u -b -r1.1229 -r1.1230
--- xdisp.c     5 Jul 2008 09:45:56 -0000       1.1229
+++ xdisp.c     5 Jul 2008 18:22:56 -0000       1.1230
@@ -14534,9 +14534,10 @@
   int yb = window_text_bottom_y (w);
 
   /* Find the last row displaying unchanged text.  */
-  row = MATRIX_FIRST_TEXT_ROW (w->current_matrix);
-  while (MATRIX_ROW_DISPLAYS_TEXT_P (row)
-        && MATRIX_ROW_START_CHARPOS (row) < first_changed_pos)
+  for (row = MATRIX_FIRST_TEXT_ROW (w->current_matrix);
+       MATRIX_ROW_DISPLAYS_TEXT_P (row)
+        && MATRIX_ROW_START_CHARPOS (row) < first_changed_pos;
+       ++row)
     {
       if (/* If row ends before first_changed_pos, it is unchanged,
             except in some case.  */
@@ -14555,8 +14556,6 @@
       /* Stop if last visible row.  */
      if (MATRIX_ROW_BOTTOM_Y (row) >= yb)
        break;
-
-      ++row;
     }
 
   return row_found;
@@ -14872,6 +14871,12 @@
   if (overlay_arrows_changed_p ())
     GIVE_UP (12);
 
+  /* When word-wrap is on, adding a space to the first word of a
+     wrapped line can change the wrap position, altering the line
+     above it.  It might be worthwhile to handle this more
+     intelligently, but for now just redisplay from scratch.  */
+  if (!NILP (XBUFFER (w->buffer)->word_wrap))
+    GIVE_UP (21);
 
   /* Make sure beg_unchanged and end_unchanged are up to date.  Do it
      only if buffer has really changed.  The reason is that the gap is