rxvt-unicode-better-wheel-scrolling/clear.patch

   1 diff -r 4399ffb6a87c src/command.C
   2 --- a/src/command.C     Sat Jan 21 13:57:22 2012 +0100
   3 +++ b/src/command.C     Sat Jan 21 14:03:49 2012 +0100
   4 @@ -2932,6 +2932,17 @@
   5
   6        case CSI_CUP:            /* 8.3.21: (1,1) CURSOR POSITION */
   7        case CSI_HVP:            /* 8.3.64: (1,1) CHARACTER AND LINE POSITION */
   8 +        if (nargs == 1 && current_screen == 0)
   9 +          {
  10 +            // This is usually followed with clear screen so add some extra
  11 +            // lines to avoid deleting the lines already on screen. If we are
  12 +            // already at the top, add an extra screen height of lines.
  13 +            int extra_lines = nrow-1;
  14 +            if (screen.cur.row == 0)
  15 +              extra_lines += nrow;
  16 +            for (int i = 0; i < extra_lines; ++i)
  17 +              scr_add_lines (L"\r\n", 2);
  18 +          }
  19          scr_gotorc (arg[0] - 1, nargs < 2 ? 0 : (arg[1] - 1), 0);
  20          break;
  21