source: patches/readline-6.0-branch_update-2.patch@ b3dcad4

readline-6.0

@@ -512 +512 @@
   /* Block keyboard interrupts because this function manipulates global
      data structures. */
   _rl_block_sigint ();  
+  RL_SETSTATE (RL_STATE_REDISPLAYING);
 
   if (!rl_display_prompt)
     rl_display_prompt = "";
@@ -1191 +1192 @@
       if (!rl_display_fixed || forced_display || lmargin != last_lmargin)
         {
           forced_display = 0;
+          o_cpos = _rl_last_c_pos;
+          cpos_adjusted = 0;
           update_line (&visible_line[last_lmargin],
                        &invisible_line[lmargin],
                        0,
@@ -1198 +1201 @@
                        _rl_screenwidth + (lmargin ? 0 : wrap_offset),
                        0);
 
+          if ((MB_CUR_MAX > 1 && rl_byte_oriented == 0) &&
+              cpos_adjusted == 0 &&
+              _rl_last_c_pos != o_cpos &&
+              _rl_last_c_pos > wrap_offset &&
+              o_cpos < prompt_last_invisible)
+                _rl_last_c_pos -= prompt_invis_chars_first_line;        /* XXX - was wrap_offset */
+
           /* If the visible new line is shorter than the old, but the number
              of invisible characters is greater, and we are at the end of
              the new line, we need to clear to eol. */
@@ -1236 +1246 @@
       visible_wrap_offset = wrap_offset;
   }
 
+  RL_UNSETSTATE (RL_STATE_REDISPLAYING);
   _rl_release_sigint ();
 }
 
@@ -1772 +1783 @@
              space_to_eol will insert too many spaces.  XXX - maybe we should
              adjust col_lendiff based on the difference between _rl_last_c_pos
              and _rl_screenwidth */
-          if (col_lendiff && (_rl_last_c_pos < _rl_screenwidth))
+          if (col_lendiff && ((MB_CUR_MAX == 1 || rl_byte_oriented) || (_rl_last_c_pos < _rl_screenwidth)))
 #endif
             {     
               if (_rl_term_autowrap && current_line < inv_botlin)
@@ -1892 +1903 @@
 
   woff = WRAP_OFFSET (_rl_last_v_pos, wrap_offset);
   cpos = _rl_last_c_pos;
+
+  if (cpos == 0 && cpos == new)
+    return;
+
 #if defined (HANDLE_MULTIBYTE)
   /* If we have multibyte characters, NEW is indexed by the buffer point in
      a multibyte string, but _rl_last_c_pos is the display position.  In
@@ -1905 +1920 @@
          prompt string, since they're both buffer indices and DPOS is a
          desired display position. */
       if ((new > prompt_last_invisible) ||              /* XXX - don't use woff here */
-          (prompt_physical_chars > _rl_screenwidth &&
+          (prompt_physical_chars >= _rl_screenwidth &&
            _rl_last_v_pos == prompt_last_screen_line &&
-           wrap_offset >= woff &&
+           wrap_offset >= woff && dpos >= woff &&
            new > (prompt_last_invisible-(_rl_screenwidth*_rl_last_v_pos)-wrap_offset)))
            /* XXX last comparison might need to be >= */
         {

readline-6.0

@@ -1 +1 @@
 # Do not edit -- exists only for use by patch
 
-0
+3

readline-6.0

@@ -814 +814 @@
 #define RL_STATE_VIMOTION       0x100000        /* reading vi motion arg */
 #define RL_STATE_MULTIKEY       0x200000        /* reading multiple-key command */
 #define RL_STATE_VICMDONCE      0x400000        /* entered vi command mode at least once */
+#define RL_STATE_REDISPLAYING   0x800000        /* updating terminal display */
 
-#define RL_STATE_DONE           0x800000        /* done; accepted line */
+#define RL_STATE_DONE           0x1000000       /* done; accepted line */
 
 #define RL_SETSTATE(x)          (rl_readline_state |= (x))
 #define RL_UNSETSTATE(x)        (rl_readline_state &= ~(x))

readline-6.0

@@ -355 +355 @@
       _rl_get_screen_size (fileno (rl_instream), 1);
       if (CUSTOM_REDISPLAY_FUNC ())
         rl_forced_update_display ();
-      else
+      else if (RL_ISSTATE(RL_STATE_REDISPLAYING) == 0)
         _rl_redisplay_after_sigwinch ();
     }
 }