Sync with bash 1.4.5 version

Check some null pointers before action, cosmetique fixes
Submitted by:
Obtained from:

gnu/lib/libreadline/complete.c

@@ -468,7 +468,7 @@ rl_complete_internal (what_to_do)
 	    }
 	}
 
-      if (rl_point == end)
+      if (rl_point == end && found_quote == 0)
 	{
 	  int quoted = 0;
 	  /* We didn't find an unclosed quoted substring upon which to do
@@ -668,7 +668,7 @@ rl_complete_internal (what_to_do)
 		 not be checked, add !matches[1] to the if clause. */
 	      should_quote = rl_strpbrk (matches[0], rl_completer_word_break_characters) != 0;
 #if defined (SHELL)
-	      should_quote = should_quote || rl_strpbrk (matches[0], "#$`?*[") != 0;
+	      should_quote = should_quote || rl_strpbrk (matches[0], "#$`?*[!") != 0;
 #endif
 
 	      if (should_quote)

gnu/lib/libreadline/display.c

@@ -185,7 +185,7 @@ expand_prompt (pmt, lp)
       return r;
     }
 
-  l = strlen (pmt);
+  l = pmt ? strlen (pmt) : 0;
   r = ret = xmalloc (l + 1);
 
   for (rl = ignoring = 0, p = pmt; p && *p; p++)

gnu/lib/libreadline/readline.3

@@ -95,8 +95,6 @@ char *variable, *value;
 .fi
 .LP
 .nf
-.LP
-.nf
 .ft B
 int rl_parse_and_bind (line)
 char *line;
@@ -744,7 +742,7 @@ inserts the \fIn\fPth word from the end of the previous command.
 yank\-last\-arg (M\-.\^, M\-_\^)
 Insert the last argument to the previous command (the last word on
 the previous line).  With an argument,
-behave exactly like @code{yank-nth-arg}.
+behave exactly like \fByank-nth-arg\fP.
 .PD
 .SS Commands for Changing Text
 .PP

gnu/lib/libreadline/readline.c

@@ -3122,7 +3122,7 @@ rl_kill_line (direction, ignore)
     return (rl_backward_kill_line (1));
   else
     {
-      rl_end_of_line ();
+      rl_end_of_line (1, ignore);
       if (orig_point != rl_point)
 	rl_kill_text (orig_point, rl_point);
       rl_point = orig_point;
@@ -3145,7 +3145,7 @@ rl_backward_kill_line (direction, ignore)
 	ding ();
       else
 	{
-	  rl_beg_of_line ();
+	  rl_beg_of_line (1, ignore);
 	  rl_kill_text (orig_point, rl_point);
 	}
     }
@@ -3169,7 +3169,7 @@ rl_yank (count, ignore)
 {
   if (!rl_kill_ring)
     {
-      rl_abort ();
+      rl_abort (count, ignore);
       return -1;
     }
 
@@ -3190,7 +3190,7 @@ rl_yank_pop (count, key)
   if (((rl_last_func != rl_yank_pop) && (rl_last_func != rl_yank)) ||
       !rl_kill_ring)
     {
-      rl_abort ();
+      rl_abort (1, key);
       return -1;
     }
 
@@ -3209,7 +3209,7 @@ rl_yank_pop (count, key)
     }
   else
     {
-      rl_abort ();
+      rl_abort (1, key);
       return -1;
     }
 }

gnu/lib/libreadline/vi_mode.c

@@ -275,7 +275,7 @@ rl_vi_complete (ignore, key)
   if (key == '*' || key == '\\')
     {
       _rl_vi_set_last (key, 1, rl_arg_sign);
-      rl_vi_insertion_mode ();
+      rl_vi_insertion_mode (1, key);
     }
   return (0);
 }
@@ -286,7 +286,7 @@ rl_vi_tilde_expand (ignore, key)
 {
   rl_tilde_expand (0, key);
   _rl_vi_set_last (key, 1, rl_arg_sign);	/* XXX */
-  rl_vi_insertion_mode ();
+  rl_vi_insertion_mode (1, key);
   return (0);
 }
 
@@ -507,8 +507,8 @@ rl_vi_eword (count)
 rl_vi_insert_beg (count, key)
      int count, key;
 {
-  rl_beg_of_line ();
-  rl_vi_insertion_mode ();
+  rl_beg_of_line (1, key);
+  rl_vi_insertion_mode (1, key);
   return (0);
 }
 
@@ -517,15 +517,15 @@ rl_vi_append_mode (count, key)
 {
   if (rl_point < rl_end)
     rl_point++;
-  rl_vi_insertion_mode ();
+  rl_vi_insertion_mode (1, key);
   return (0);
 }
 
 rl_vi_append_eol (count, key)
      int count, key;
 {
-  rl_end_of_line ();
-  rl_vi_append_mode ();
+  rl_end_of_line (1, key);
+  rl_vi_append_mode (1, key);
   return (0);
 }
 
@@ -836,7 +836,7 @@ rl_vi_change_to (count, key)
   rl_begin_undo_group ();
   _rl_vi_doing_insert = 1;
   _rl_vi_set_last (key, count, rl_arg_sign);
-  rl_vi_insertion_mode ();
+  rl_vi_insertion_mode (1, key);
 
   return (0);
 }
@@ -1157,7 +1157,7 @@ rl_vi_subst (count, key)
 
   rl_begin_undo_group ();
   _rl_vi_doing_insert = 1;
-  rl_vi_insertion_mode ();
+  rl_vi_insertion_mode (1, key);
 
   return (0);
 }