source: patches/readline-5.2-fixes-2.patch@ fd5c672

Submitted By: Joe Ciccone <jciccone@gmail.com>
Date: 2007-07-23
Initial Package Version: 5.2
Origin: ftp://ftp.cwru.edu/pub/bash/readline-5.2-patches
Upstream Status: From Upstream
Description: Contains patches 001 - 004 from upstream

diff -Naur readline-5.2.orig/display.c readline-5.2/display.c
--- readline-5.2.orig/display.c 2007-07-23 20:10:10.000000000 -0400
+++ readline-5.2/display.c      2007-07-23 20:10:27.000000000 -0400
@@ -561,6 +561,17 @@
       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)) \
@@ -569,6 +580,7 @@
            inv_lbreaks = (int *)xrealloc (inv_lbreaks, inv_lbsize * sizeof (int)); \
          } \
       } while (0)
+#endif /* HANDLE_MULTIBYTE */
 
 #if defined (HANDLE_MULTIBYTE)   
 #define CHECK_LPOS() \
@@ -1586,8 +1598,22 @@
          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. */
@@ -1595,8 +1621,20 @@
        {
          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)
@@ -1732,7 +1770,10 @@
   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
@@ -2380,6 +2421,8 @@
 
   if (end <= start)
     return 0;
+  if (MB_CUR_MAX == 1 || rl_byte_oriented)
+    return (end - start);
 
   memset (&ps, 0, sizeof (mbstate_t));