source: scripts/patches/readline-5.0-fixes-1.patch@ f6180d2

readline-5.0

@@ -201 +201 @@
      int *lp, *lip, *niflp, *vlp;
 {
   char *r, *ret, *p;
-  int l, rl, last, ignoring, ninvis, invfl, ind, pind, physchars;
+  int l, rl, last, ignoring, ninvis, invfl, invflset, ind, pind, physchars;
 
   /* Short-circuit if we can. */
   if ((MB_CUR_MAX <= 1 || rl_byte_oriented) && strchr (pmt, RL_PROMPT_START_IGNORE) == 0)
@@ -222 +222 @@
   r = ret = (char *)xmalloc (l + 1);
 
   invfl = 0;    /* invisible chars in first line of prompt */
+  invflset = 0; /* we only want to set invfl once */
 
   for (rl = ignoring = last = ninvis = physchars = 0, p = pmt; p && *p; p++)
     {
@@ -249 +250 @@
               while (l--)
                 *r++ = *p++;
               if (!ignoring)
-                rl += ind - pind;
+                {
+                  rl += ind - pind;
+                  physchars += _rl_col_width (pmt, pind, ind);
+                }
               else
                 ninvis += ind - pind;
               p--;                      /* compensate for later increment */
@@ -259 +263 @@
             {
               *r++ = *p;
               if (!ignoring)
-                rl++;                   /* visible length byte counter */
+                {
+                  rl++;                 /* visible length byte counter */
+                  physchars++;
+                }
               else
                 ninvis++;               /* invisible chars byte counter */
             }
 
-          if (rl >= _rl_screenwidth)
-            invfl = ninvis;
-
-          if (ignoring == 0)
-            physchars++;
+          if (invflset == 0 && rl >= _rl_screenwidth)
+            {
+              invfl = ninvis;
+              invflset = 1;
+            }
         }
     }
 
@@ -351 +358 @@
       local_prompt = expand_prompt (p, &prompt_visible_length,
                                        &prompt_last_invisible,
                                        (int *)NULL,
-                                       (int *)NULL);
+                                       &prompt_physical_chars);
       c = *t; *t = '\0';
       /* The portion of the prompt string up to and including the
          final newline is now null-terminated. */
       local_prompt_prefix = expand_prompt (prompt, &prompt_prefix_length,
                                                    (int *)NULL,
                                                    &prompt_invis_chars_first_line,
-                                                   &prompt_physical_chars);
+                                                   (int *)NULL);
       *t = c;
       return (prompt_prefix_length);
     }
@@ -417 +424 @@
   register int in, out, c, linenum, cursor_linenum;
   register char *line;
   int c_pos, inv_botlin, lb_botlin, lb_linenum;
-  int newlines, lpos, temp, modmark;
+  int newlines, lpos, temp, modmark, n0, num;
   char *prompt_this_line;
 #if defined (HANDLE_MULTIBYTE)
   wchar_t wc;
@@ -573 +580 @@
 
 #if defined (HANDLE_MULTIBYTE)
   memset (_rl_wrapped_line, 0, vis_lbsize);
+  num = 0;
 #endif
 
   /* prompt_invis_chars_first_line is the number of invisible characters in
@@ -591 +599 @@
          probably too much work for the benefit gained.  How many people have
          prompts that exceed two physical lines?
          Additional logic fix from Edward Catmur <ed@catmur.co.uk> */
+#if defined (HANDLE_MULTIBYTE)
+      n0 = num;
+      temp = local_prompt ? strlen (local_prompt) : 0;
+      while (num < temp)
+        {
+          if (_rl_col_width  (local_prompt, n0, num) > _rl_screenwidth)
+            {
+              num = _rl_find_prev_mbchar (local_prompt, num, MB_FIND_ANY);
+              break;
+            }
+          num++;
+        }
+      temp = num +
+#else
       temp = ((newlines + 1) * _rl_screenwidth) +
+#endif /* !HANDLE_MULTIBYTE */
              ((local_prompt_prefix == 0) ? ((newlines == 0) ? prompt_invis_chars_first_line
                                                             : ((newlines == 1) ? wrap_offset : 0))
                                          : ((newlines == 0) ? wrap_offset :0));
              
       inv_lbreaks[++newlines] = temp;
+#if defined (HANDLE_MULTIBYTE)
+      lpos -= _rl_col_width (local_prompt, n0, num);
+#else
       lpos -= _rl_screenwidth;
+#endif
     }
 
   prompt_last_screen_line = newlines;

readline-5.0

@@ -126 +126 @@
   if (find_non_zero)
     {
       tmp = mbrtowc (&wc, string + point, strlen (string + point), &ps);
-      while (wcwidth (wc) == 0)
+      while (tmp > 0 && wcwidth (wc) == 0)
         {
           point += tmp;
           tmp = mbrtowc (&wc, string + point, strlen (string + point), &ps);
-          if (tmp == (size_t)(0) || tmp == (size_t)(-1) || tmp == (size_t)(-2))
+          if (MB_NULLWCH (tmp) || MB_INVALIDCH (tmp))
             break;
         }
     }

readline-5.0

@@ -276 +276 @@
       _rl_saved_line_for_history->line = savestring (rl_line_buffer);
       _rl_saved_line_for_history->data = (char *)rl_undo_list;
     }
-  else if (STREQ (rl_line_buffer, _rl_saved_line_for_history->line) == 0)
-    {
-      free (_rl_saved_line_for_history->line);
-      _rl_saved_line_for_history->line = savestring (rl_line_buffer);
-      _rl_saved_line_for_history->data = (char *)rl_undo_list;  /* XXX possible memleak */
-    }
 
   return 0;
 }

readline-5.0

@@ -272 +272 @@
   switch (key)
     {
     case '?':
+      _rl_free_saved_history_line ();
       rl_noninc_forward_search (count, key);
       break;
 
     case '/':
+      _rl_free_saved_history_line ();
       rl_noninc_reverse_search (count, key);
       break;
 
@@ -690 +692 @@
 {
   wchar_t wc;
   char mb[MB_LEN_MAX+1];
-  int mblen;
+  int mblen, p;
   mbstate_t ps;
 
   memset (&ps, 0, sizeof (mbstate_t));
@@ -713 +715 @@
       /* Vi is kind of strange here. */
       if (wc)
         {
+          p = rl_point;
           mblen = wcrtomb (mb, wc, &ps);
           if (mblen >= 0)
             mb[mblen] = '\0';
           rl_begin_undo_group ();
-          rl_delete (1, 0);
+          rl_vi_delete (1, 0);
+          if (rl_point < p)     /* Did we retreat at EOL? */
+            rl_point++; /* XXX - should we advance more than 1 for mbchar? */
           rl_insert_text (mb);
           rl_end_undo_group ();
           rl_vi_check ();
@@ -1310 +1315 @@
       rl_vi_delete (1, c);
 #if defined (HANDLE_MULTIBYTE)
       if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
-        while (_rl_insert_char (1, c))
-          {
-            RL_SETSTATE (RL_STATE_MOREINPUT);
-            c = rl_read_key ();
-            RL_UNSETSTATE (RL_STATE_MOREINPUT);
-          }
+        {
+          if (rl_point < p)             /* Did we retreat at EOL? */
+            rl_point++;
+          while (_rl_insert_char (1, c))
+            {
+              RL_SETSTATE (RL_STATE_MOREINPUT);
+              c = rl_read_key ();
+              RL_UNSETSTATE (RL_STATE_MOREINPUT);
+            }
+        }
       else
 #endif
         {