source: patches/readline-5.2-fixes-2.patch@ c304f4c

readline-5.2

@@ -561 +561 @@
       wrap_offset = prompt_invis_chars_first_line = 0;
     }
 
+#if defined (HANDLE_MULTIBYTE)
+#define CHECK_INV_LBREAKS() \
+      do { \
+        if (newlines >= (inv_lbsize - 2)) \
+          { \
+            inv_lbsize *= 2; \
+            inv_lbreaks = (int *)xrealloc (inv_lbreaks, inv_lbsize * sizeof (int)); \
+            _rl_wrapped_line = (int *)xrealloc (_rl_wrapped_line, inv_lbsize * sizeof (int)); \
+          } \
+      } while (0)
+#else
 #define CHECK_INV_LBREAKS() \
       do { \
         if (newlines >= (inv_lbsize - 2)) \
@@ -569 +580 @@
             inv_lbreaks = (int *)xrealloc (inv_lbreaks, inv_lbsize * sizeof (int)); \
           } \
       } while (0)
+#endif /* HANDLE_MULTIBYTE */
 
 #if defined (HANDLE_MULTIBYTE)    
 #define CHECK_LPOS() \
@@ -1586 +1598 @@
           temp = nls - nfd;
           if (temp > 0)
             {
+              /* If nfd begins at the prompt, or before the invisible
+                 characters in the prompt, we need to adjust _rl_last_c_pos
+                 in a multibyte locale to account for the wrap offset and
+                 set cpos_adjusted accordingly. */
               _rl_output_some_chars (nfd, temp);
-              _rl_last_c_pos += _rl_col_width (nfd, 0, temp);;
+              if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+                {
+                  _rl_last_c_pos += _rl_col_width (nfd, 0, temp);
+                  if (current_line == 0 && wrap_offset &&  ((nfd - new) <= prompt_last_invisible))
+                    {
+                      _rl_last_c_pos -= wrap_offset;
+                      cpos_adjusted = 1;
+                    }
+                }
+              else
+                _rl_last_c_pos += temp;
             }
         }
       /* Otherwise, print over the existing material. */
@@ -1595 +1621 @@
         {
           if (temp > 0)
             {
+              /* If nfd begins at the prompt, or before the invisible
+                 characters in the prompt, we need to adjust _rl_last_c_pos
+                 in a multibyte locale to account for the wrap offset and
+                 set cpos_adjusted accordingly. */
               _rl_output_some_chars (nfd, temp);
               _rl_last_c_pos += col_temp;               /* XXX */
+              if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
+                {
+                  if (current_line == 0 && wrap_offset &&  ((nfd - new) <= prompt_last_invisible))
+                    {
+                      _rl_last_c_pos -= wrap_offset;
+                      cpos_adjusted = 1;
+                    }
+                }
             }
           lendiff = (oe - old) - (ne - new);
           if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
@@ -1732 +1770 @@
   if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
     {
       dpos = _rl_col_width (data, 0, new);
-      if (dpos > prompt_last_invisible)         /* XXX - don't use woff here */
+      /* Use NEW when comparing against the last invisible character in the
+         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 */
         {
           dpos -= woff;
           /* Since this will be assigned to _rl_last_c_pos at the end (more
@@ -2380 +2421 @@
 
   if (end <= start)
     return 0;
+  if (MB_CUR_MAX == 1 || rl_byte_oriented)
+    return (end - start);
 
   memset (&ps, 0, sizeof (mbstate_t));