merge

10 files changed, 638 insertions, 355 deletions

diff --git a/contrib/libreadline/MANIFEST.doc b/contrib/libreadline/MANIFEST.doc
deleted file mode 100644
index ed27cb3..0000000
--- a/contrib/libreadline/MANIFEST.doc
+++ /dev/null
@@ -1,16 +0,0 @@
-#
-# Master Manifest file for documentation-only distribution
-#
-doc	d
-MANIFEST.doc	f
-doc/readline.ps	f
-doc/history.ps	f
-doc/readline.dvi	f
-doc/history.dvi	f
-doc/readline.info	f
-doc/history.info	f
-doc/readline.html	f
-doc/readline_toc.html	f
-doc/history.html	f
-doc/history_toc.html	f
-doc/readline.0	f
diff --git a/contrib/libreadline/complete.c b/contrib/libreadline/complete.c
index 985e898..714a2bf 100644
--- a/contrib/libreadline/complete.c
+++ b/contrib/libreadline/complete.c
@@ -85,6 +85,15 @@ extern void _rl_move_vert ();
 extern int _rl_vis_botlin;
 extern int rl_display_fixed;
 
+/* If non-zero, then this is the address of a function to call when
+   completing a word would normally display the list of possible matches.
+   This function is called instead of actually doing the display.
+   It takes three arguments: (char **matches, int num_matches, int max_length)
+   where MATCHES is the array of strings that matched, NUM_MATCHES is the
+   number of strings in that array, and MAX_LENGTH is the length of the
+   longest string in that array. */
+VFunction *rl_completion_display_matches_hook = (VFunction *)NULL;
+
 /* Forward declarations for functions defined and used in this file. */
 char *filename_completion_function ();
 char **completion_matches ();
@@ -674,6 +683,7 @@ gen_completion_matches (text, start, end, our_func, found_quote, quote_char)
      we are doing filename completion and the application has defined a
      filename dequoting function. */
   temp = (char *)NULL;
+
   if (found_quote && our_func == (Function *)filename_completion_function &&
       rl_filename_dequoting_function)
     {
@@ -682,7 +692,7 @@ gen_completion_matches (text, start, end, our_func, found_quote, quote_char)
       text = temp;	/* not freeing text is not a memory leak */
     }
 
-  matches = completion_matches (text, our_func);
+  matches = completion_matches (text, (CPFunction *)our_func);
   FREE (temp);
   return matches;  
 }
@@ -813,8 +823,7 @@ compute_lcd_of_matches (match_list, matches, text)
 }
 
 static int
-postprocess_matches (text, matchesp, matching_filenames)
-     char *text;
+postprocess_matches (matchesp, matching_filenames)
      char ***matchesp;
      int matching_filenames;
 {
@@ -845,7 +854,6 @@ postprocess_matches (text, matchesp, matching_filenames)
       if (matches == 0 || matches[0] == 0)
 	{
 	  FREE (matches);
-	  ding ();
 	  *matchesp = (char **)0;
 	  return 0;
         }
@@ -857,7 +865,7 @@ postprocess_matches (text, matchesp, matching_filenames)
 	  if (i > 1 && i < nmatch)
 	    {
 	      t = matches[0];
-	      compute_lcd_of_matches (matches, i - 1, text);
+	      compute_lcd_of_matches (matches, i - 1, t);
 	      FREE (t);
 	    }
 	}
@@ -867,66 +875,19 @@ postprocess_matches (text, matchesp, matching_filenames)
   return (1);
 }
 
-static void
-display_matches (matches)
+/* A convenience function for displaying a list of strings in
+   columnar format on readline's output stream.  MATCHES is the list
+   of strings, in argv format, LEN is the number of strings in MATCHES,
+   and MAX is the length of the longest string in MATCHES. */
+void
+rl_display_match_list (matches, len, max)
      char **matches;
+     int len, max;
 {
-  int len, count, limit, max, printed_len;
+  int count, limit, printed_len;
   int i, j, k, l;
   char *temp;
 
-  /* Move to the last visible line of a possibly-multiple-line command. */
-  _rl_move_vert (_rl_vis_botlin);
-
-  /* Handle simple case first.  What if there is only one answer? */
-  if (matches[1] == 0)
-    {
-      temp = printable_part (matches[0]);
-      crlf ();
-      print_filename (temp, matches[0]);
-      crlf ();
-#if 0
-      rl_on_new_line ();
-#else
-      rl_forced_update_display ();
-      rl_display_fixed = 1;
-#endif
-      return;
-    }
-
-  /* There is more than one answer.  Find out how many there are,
-     and find the maximum printed length of a single entry. */
-  for (max = 0, i = 1; matches[i]; i++)
-    {
-      temp = printable_part (matches[i]);
-      len = strlen (temp);
-
-      if (len > max)
-	max = len;
-    }
-
-  len = i - 1;
-
-  /* If there are many items, then ask the user if she really wants to
-     see them all. */
-  if (len >= rl_completion_query_items)
-    {
-      crlf ();
-      fprintf (rl_outstream, "Display all %d possibilities? (y or n)", len);
-      fflush (rl_outstream);
-      if (get_y_or_n () == 0)
-	{
-	  crlf ();
-#if 0
-	  rl_on_new_line ();
-#else
-	  rl_forced_update_display ();
-	  rl_display_fixed = 1;
-#endif
-	  return;
-	}
-    }
-
   /* How many items of MAX length can we fit in the screen window? */
   max += 2;
   limit = screenwidth / max;
@@ -993,13 +954,85 @@ display_matches (matches)
 	}
       crlf ();
     }
+}
+
+/* Display MATCHES, a list of matching filenames in argv format.  This
+   handles the simple case -- a single match -- first.  If there is more
+   than one match, we compute the number of strings in the list and the
+   length of the longest string, which will be needed by the display
+   function.  If the application wants to handle displaying the list of
+   matches itself, it sets RL_COMPLETION_DISPLAY_MATCHES_HOOK to the
+   address of a function, and we just call it.  If we're handling the
+   display ourselves, we just call rl_display_match_list.  We also check
+   that the list of matches doesn't exceed the user-settable threshold,
+   and ask the user if he wants to see the list if there are more matches
+   than RL_COMPLETION_QUERY_ITEMS. */
+static void
+display_matches (matches)
+     char **matches;
+{
+  int len, max, i;
+  char *temp;
+
+  /* Move to the last visible line of a possibly-multiple-line command. */
+  _rl_move_vert (_rl_vis_botlin);
+
+  /* Handle simple case first.  What if there is only one answer? */
+  if (matches[1] == 0)
+    {
+      temp = printable_part (matches[0]);
+      crlf ();
+      print_filename (temp, matches[0]);
+      crlf ();
+
+      rl_forced_update_display ();
+      rl_display_fixed = 1;
+
+      return;
+    }
+
+  /* There is more than one answer.  Find out how many there are,
+     and find the maximum printed length of a single entry. */
+  for (max = 0, i = 1; matches[i]; i++)
+    {
+      temp = printable_part (matches[i]);
+      len = strlen (temp);
+
+      if (len > max)
+	max = len;
+    }
+
+  len = i - 1;
+
+  /* If the caller has defined a display hook, then call that now. */
+  if (rl_completion_display_matches_hook)
+    {
+      (*rl_completion_display_matches_hook) (matches, len, max);
+      return;
+    }
+	
+  /* If there are many items, then ask the user if she really wants to
+     see them all. */
+  if (len >= rl_completion_query_items)
+    {
+      crlf ();
+      fprintf (rl_outstream, "Display all %d possibilities? (y or n)", len);
+      fflush (rl_outstream);
+      if (get_y_or_n () == 0)
+	{
+	  crlf ();
+
+	  rl_forced_update_display ();
+	  rl_display_fixed = 1;
+
+	  return;
+	}
+    }
+
+  rl_display_match_list (matches, len, max);
 
-#if 0
-  rl_on_new_line ();
-#else
   rl_forced_update_display ();
   rl_display_fixed = 1;
-#endif
 }
 
 static char *
@@ -1026,11 +1059,8 @@ make_quoted_replacement (match, mtype, qc)
 			rl_filename_quoting_desired;
 
   if (should_quote)
-#if defined (SHELL)
-    should_quote = should_quote && (!qc || !*qc || *qc == '"' || *qc == '\'');
-#else /* !SHELL */
-    should_quote = should_quote && (!qc || !*qc);
-#endif /* !SHELL */
+    should_quote = should_quote && (!qc || !*qc ||
+		     (rl_completer_quote_characters && strchr (rl_completer_quote_characters, *qc)));
 
   if (should_quote)
     {
@@ -1168,6 +1198,17 @@ insert_all_matches (matches, point, qc)
   rl_end_undo_group ();
 }
 
+static void
+free_match_list (matches)
+     char **matches;
+{
+  register int i;
+
+  for (i = 0; matches[i]; i++)
+    free (matches[i]);
+  free (matches);
+}
+
 /* Complete the word at or before point.
    WHAT_TO_DO says what to do with the completion.
    `?' means list the possible completions.
@@ -1210,27 +1251,34 @@ rl_complete_internal (what_to_do)
 
   text = rl_copy_text (start, end);
   matches = gen_completion_matches (text, start, end, our_func, found_quote, quote_char);
+  free (text);
 
   if (matches == 0)
     {
       ding ();
       FREE (saved_line_buffer);
-      free (text);
       return (0);
     }
 
+#if 0
   /* If we are matching filenames, our_func will have been set to
      filename_completion_function */
   i = our_func == (Function *)filename_completion_function;
-  if (postprocess_matches (text, &matches, i) == 0)
+#else
+  /* If we are matching filenames, the attempted completion function will
+     have set rl_filename_completion_desired to a non-zero value.  The basic
+     filename_completion_function does this. */
+  i = rl_filename_completion_desired;
+#endif
+
+  if (postprocess_matches (&matches, i) == 0)
     {
+      ding ();
       FREE (saved_line_buffer);
-      free (text);
+      completion_changed_buffer = 0;
       return (0);
     }
 
-  free (text);
-
   switch (what_to_do)
     {
     case TAB:
@@ -1277,9 +1325,7 @@ rl_complete_internal (what_to_do)
       return 1;
     }
 
-  for (i = 0; matches[i]; i++)
-    free (matches[i]);
-  free (matches);
+  free_match_list (matches);
 
   /* Check to see if the line has changed through all of this manipulation. */
   if (saved_line_buffer)
@@ -1358,10 +1404,10 @@ completion_matches (text, entry_function)
    character (usually `~').  */
 char *
 username_completion_function (text, state)
-     int state;
      char *text;
+     int state;
 {
-#if defined (__GO32__) || defined (__WIN32__)
+#if defined (__GO32__) || defined (__WIN32__) || defined (__OPENNT)
   return (char *)NULL;
 #else /* !__GO32__ */
   static char *username = (char *)NULL;
@@ -1415,8 +1461,8 @@ username_completion_function (text, state)
    completion for a command. */
 char *
 filename_completion_function (text, state)
-     int state;
      char *text;
+     int state;
 {
   static DIR *directory = (DIR *)NULL;
   static char *filename = (char *)NULL;
@@ -1574,7 +1620,7 @@ filename_completion_function (text, state)
 	      strcpy (temp, users_dirname);
 	    }
 
-	  strcpy (temp + dirlen, entry->d_name); /* strcat (temp, entry->d_name); */
+	  strcpy (temp + dirlen, entry->d_name);
 	}
       else
 	temp = savestring (entry->d_name);
@@ -1649,10 +1695,17 @@ rl_menu_complete (count, ignore)
       matches = gen_completion_matches (orig_text, orig_start, orig_end,
 					our_func, found_quote, quote_char);
 
+#if 0
       /* If we are matching filenames, our_func will have been set to
 	 filename_completion_function */
       matching_filenames = our_func == (Function *)filename_completion_function;
-      if (matches == 0 || postprocess_matches (orig_text, &matches, matching_filenames) == 0)
+#else
+      /* If we are matching filenames, the attempted completion function will
+	 have set rl_filename_completion_desired to a non-zero value.  The basic
+	 filename_completion_function does this. */
+      matching_filenames = rl_filename_completion_desired;
+#endif
+      if (matches == 0 || postprocess_matches (&matches, matching_filenames) == 0)
 	{
     	  ding ();
 	  FREE (matches);
@@ -1686,7 +1739,7 @@ rl_menu_complete (count, ignore)
   if (match_list_index < 0)
     match_list_index += match_list_size;
 
-  if (match_list_index == 0)
+  if (match_list_index == 0 && match_list_size > 1)
     {
       ding ();
       insert_match (orig_text, orig_start, MULT_MATCH, &quote_char);
diff --git a/contrib/libreadline/display.c b/contrib/libreadline/display.c
index e9d4277..25aba64 100644
--- a/contrib/libreadline/display.c
+++ b/contrib/libreadline/display.c
@@ -280,7 +280,7 @@ rl_expand_prompt (prompt)
   if (local_prompt_prefix)
     free (local_prompt_prefix);
   local_prompt = local_prompt_prefix = (char *)0;
-  last_invisible = 0;
+  last_invisible = visible_length = 0;
 
   if (prompt == 0 || *prompt == 0)
     return (0);
@@ -373,6 +373,13 @@ rl_redisplay ()
 
       if (local_len > 0)
 	{
+	  temp = local_len + out + 2;
+	  if (temp >= line_size)
+	    {
+	      line_size = (temp + 1024) - (temp % 1024);
+	      visible_line = xrealloc (visible_line, line_size);
+	      line = invisible_line = xrealloc (invisible_line, line_size);
+	    }
 	  strncpy (line + out, local_prompt, local_len);
 	  out += local_len;
 	}
@@ -399,6 +406,13 @@ rl_redisplay ()
 	}
 
       pmtlen = strlen (prompt_this_line);
+      temp = pmtlen + out + 2;
+      if (temp >= line_size)
+	{
+	  line_size = (temp + 1024) - (temp % 1024);
+	  visible_line = xrealloc (visible_line, line_size);
+	  line = invisible_line = xrealloc (invisible_line, line_size);
+	}
       strncpy (line + out,  prompt_this_line, pmtlen);
       out += pmtlen;
       line[out] = '\0';
@@ -407,12 +421,12 @@ rl_redisplay ()
 
 #define CHECK_LPOS() \
       do { \
-        lpos++; \
-        if (lpos >= screenwidth) \
-          { \
-            inv_lbreaks[++newlines] = out; \
-            lpos = 0; \
-          } \
+	lpos++; \
+	if (lpos >= screenwidth) \
+	  { \
+	    inv_lbreaks[++newlines] = out; \
+	    lpos = 0; \
+	  } \
       } while (0)
 
   /* inv_lbreaks[i] is where line i starts in the buffer. */
@@ -427,8 +441,8 @@ rl_redisplay ()
       temp = ((newlines + 1) * screenwidth) - ((newlines == 0) ? wrap_offset : 0);
 #else
       /* XXX - possible fix from Darin Johnson <darin@acuson.com> for prompt
-       string with invisible characters that is longer than the screen
-       width. */
+	 string with invisible characters that is longer than the screen
+	 width. */
       temp = ((newlines + 1) * screenwidth) + ((newlines == 0) ? wrap_offset : 0);
 #endif
       inv_lbreaks[++newlines] = temp;
@@ -481,7 +495,12 @@ rl_redisplay ()
       else if (c == '\t')
 	{
 	  register int temp, newout;
+
+#if 0
 	  newout = (out | (int)7) + 1;
+#else
+	  newout = out + 8 - lpos % 8;
+#endif
 	  temp = newout - out;
 	  if (lpos + temp >= screenwidth)
 	    {
@@ -501,11 +520,11 @@ rl_redisplay ()
 	}
 #endif
       else if (c == '\n' && _rl_horizontal_scroll_mode == 0 && term_up && *term_up)
-        {
-          line[out++] = '\0';	/* XXX - sentinel */
-          inv_lbreaks[++newlines] = out;
-          lpos = 0;
-        }
+	{
+	  line[out++] = '\0';	/* XXX - sentinel */
+	  inv_lbreaks[++newlines] = out;
+	  lpos = 0;
+	}
       else if (CTRL_CHAR (c) || c == RUBOUT)
 	{
 	  line[out++] = '^';
@@ -616,11 +635,11 @@ rl_redisplay ()
 	    {
 	      _rl_move_vert (cursor_linenum);
 	      /* If we moved up to the line with the prompt using term_up,
-	         the physical cursor position on the screen stays the same,
-	         but the buffer position needs to be adjusted to account
-	         for invisible characters. */
+		 the physical cursor position on the screen stays the same,
+		 but the buffer position needs to be adjusted to account
+		 for invisible characters. */
 	      if (cursor_linenum == 0 && wrap_offset)
-	        _rl_last_c_pos += wrap_offset;
+		_rl_last_c_pos += wrap_offset;
 	    }
 
 	  /* We have to reprint the prompt if it contains invisible
@@ -673,16 +692,16 @@ rl_redisplay ()
       ndisp = c_pos - wrap_offset;
       nleft  = visible_length + wrap_offset;
       /* Where the new cursor position will be on the screen.  This can be
-         longer than SCREENWIDTH; if it is, lmargin will be adjusted. */
+	 longer than SCREENWIDTH; if it is, lmargin will be adjusted. */
       phys_c_pos = c_pos - (last_lmargin ? last_lmargin : wrap_offset);
       t = screenwidth / 3;
 
       /* If the number of characters had already exceeded the screenwidth,
-         last_lmargin will be > 0. */
+	 last_lmargin will be > 0. */
 
       /* If the number of characters to be displayed is more than the screen
-         width, compute the starting offset so that the cursor is about
-         two-thirds of the way across the screen. */
+	 width, compute the starting offset so that the cursor is about
+	 two-thirds of the way across the screen. */
       if (phys_c_pos > screenwidth - 2)
 	{
 	  lmargin = c_pos - (2 * t);
@@ -694,7 +713,7 @@ rl_redisplay ()
 	    lmargin = nleft;
 	}
       else if (ndisp < screenwidth - 2)		/* XXX - was -1 */
-        lmargin = 0;
+	lmargin = 0;
       else if (phys_c_pos < 1)
 	{
 	  /* If we are moving back towards the beginning of the line and
@@ -704,7 +723,7 @@ rl_redisplay ()
 	    lmargin = nleft;
 	}
       else
-        lmargin = last_lmargin;
+	lmargin = last_lmargin;
 
       /* If the first character on the screen isn't the first character
 	 in the display line, indicate this with a special character. */
@@ -712,12 +731,12 @@ rl_redisplay ()
 	line[lmargin] = '<';
 
       /* If SCREENWIDTH characters starting at LMARGIN do not encompass
-         the whole line, indicate that with a special characters at the
-         right edge of the screen.  If LMARGIN is 0, we need to take the
-         wrap offset into account. */
+	 the whole line, indicate that with a special character at the
+	 right edge of the screen.  If LMARGIN is 0, we need to take the
+	 wrap offset into account. */
       t = lmargin + M_OFFSET (lmargin, wrap_offset) + screenwidth;
       if (t < out)
-        line[t - 1] = '>';
+	line[t - 1] = '>';
 
       if (!rl_display_fixed || forced_display || lmargin != last_lmargin)
 	{
@@ -782,7 +801,7 @@ new:	eddie> Oh, my little buggy says to me, as lurgid as
 			     \new first difference
 
    All are character pointers for the sake of speed.  Special cases for
-   no differences, as well as for end of line additions must be handeled.
+   no differences, as well as for end of line additions must be handled.
 
    Could be made even smarter, but this works well enough */
 static void
@@ -810,7 +829,7 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
       _rl_last_c_pos = 1;		/* XXX */
       _rl_last_v_pos++;
       if (old[0] && new[0])
-        old[0] = new[0];
+	old[0] = new[0];
     }
       
   /* Find first difference. */
@@ -895,10 +914,7 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
      lendiff needs to be adjusted. */
   if (current_line == 0 && !_rl_horizontal_scroll_mode &&
       current_invis_chars != visible_wrap_offset)
-    {
-      temp = visible_wrap_offset - current_invis_chars;
-      lendiff += temp;
-    }
+    lendiff += visible_wrap_offset - current_invis_chars;
 
   /* Insert (diff (len (old), len (new)) ch. */
   temp = ne - nfd;
@@ -927,7 +943,7 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
 	      /* At the end of a line the characters do not have to
 		 be "inserted".  They can just be placed on the screen. */
 	      /* However, this screws up the rest of this block, which
-	         assumes you've done the insert because you can. */
+		 assumes you've done the insert because you can. */
 	      _rl_output_some_chars (nfd, lendiff);
 	      _rl_last_c_pos += lendiff;
 	    }
@@ -987,10 +1003,13 @@ update_line (old, new, current_line, omax, nmax, inv_botlin)
 	      _rl_last_c_pos += temp;
 	    }
 	  lendiff = (oe - old) - (ne - new);
-	  if (_rl_term_autowrap && current_line < inv_botlin)
-	    space_to_eol (lendiff);
-	  else
-	    _rl_clear_to_eol (lendiff);
+	  if (lendiff)
+	    {	  
+	      if (_rl_term_autowrap && current_line < inv_botlin)
+		space_to_eol (lendiff);
+	      else
+		_rl_clear_to_eol (lendiff);
+	    }
 	}
     }
 }
@@ -1019,7 +1038,7 @@ rl_forced_update_display ()
       register char *temp = visible_line;
 
       while (*temp)
-        *temp++ = '\0';
+	*temp++ = '\0';
     }
   rl_on_new_line ();
   forced_display++;
@@ -1080,7 +1099,7 @@ _rl_move_cursor_relative (new, data)
 	putc (data[i], rl_outstream);
 #endif /* HACK_TERMCAP_MOTION */
     }
-  else if (_rl_last_c_pos != new)
+  else if (_rl_last_c_pos > new)
     _rl_backspace (_rl_last_c_pos - new);
   _rl_last_c_pos = new;
 }
@@ -1245,7 +1264,7 @@ static int saved_last_invisible;
 static int saved_visible_length;
 
 void
-_rl_save_prompt ()
+rl_save_prompt ()
 {
   saved_local_prompt = local_prompt;
   saved_local_prefix = local_prompt_prefix;
@@ -1257,7 +1276,7 @@ _rl_save_prompt ()
 }
 
 void
-_rl_restore_prompt ()
+rl_restore_prompt ()
 {
   if (local_prompt)
     free (local_prompt);
@@ -1277,14 +1296,14 @@ _rl_make_prompt_for_search (pchar)
   int len;
   char *pmt;
 
-  _rl_save_prompt ();
+  rl_save_prompt ();
 
   if (saved_local_prompt == 0)
     {
       len = (rl_prompt && *rl_prompt) ? strlen (rl_prompt) : 0;
       pmt = xmalloc (len + 2);
       if (len)
-        strcpy (pmt, rl_prompt);
+	strcpy (pmt, rl_prompt);
       pmt[len] = pchar;
       pmt[len+1] = '\0';
     }
@@ -1293,7 +1312,7 @@ _rl_make_prompt_for_search (pchar)
       len = *saved_local_prompt ? strlen (saved_local_prompt) : 0;
       pmt = xmalloc (len + 2);
       if (len)
-        strcpy (pmt, saved_local_prompt);
+	strcpy (pmt, saved_local_prompt);
       pmt[len] = pchar;
       pmt[len+1] = '\0';
       local_prompt = savestring (pmt);
@@ -1540,6 +1559,15 @@ _rl_clean_up_for_exit ()
       _rl_move_vert (_rl_vis_botlin);
       _rl_vis_botlin = 0;
       fflush (rl_outstream);
-      rl_restart_output ();
+      rl_restart_output (1, 0);
     }
 }
+
+void
+_rl_erase_entire_line ()
+{
+  cr ();
+  _rl_clear_to_eol (0);
+  cr ();
+  fflush (rl_outstream);
+}
diff --git a/contrib/libreadline/doc/readline.3 b/contrib/libreadline/doc/readline.3
index 93b6e8c..5f01b6c 100644
--- a/contrib/libreadline/doc/readline.3
+++ b/contrib/libreadline/doc/readline.3
@@ -6,9 +6,9 @@
 .\"	Case Western Reserve University
 .\"	chet@ins.CWRU.Edu
 .\"
-.\"	Last Change: Thu Feb 19 10:26:47 EST 1998
+.\"	Last Change: Thu Dec 31 10:16:30 EST 1998
 .\"
-.TH READLINE 3 "1998 Feb 19" GNU
+.TH READLINE 3 "1998 Dec 31" GNU
 .\"
 .\" File Name macro.  This used to be `.PN', for Path Name,
 .\" but Sun doesn't seem to like that very much.
@@ -22,6 +22,7 @@ readline \- get a line from a user with editing
 .LP
 .nf
 .ft B
+#include <stdio.h>
 #include <readline/readline.h>
 #include <readline/history.h>
 .ft
@@ -380,6 +381,19 @@ When set to \fBOn\fP, makes readline use a single line for display,
 scrolling the input horizontally on a single screen line when it
 becomes longer than the screen width rather than wrapping to a new line.
 .TP
+.B input\-meta (Off)
+If set to \fBOn\fP, readline will enable eight-bit input (that is,
+it will not strip the high bit from the characters it reads),
+regardless of what the terminal claims it can support.  The name
+.B meta\-flag
+is a synonym for this variable.
+.TP
+.B isearch\-terminators (``C\-[C\-J'')
+The string of characters that should terminate an incremental
+search without subsequently executing the character as a command.
+If this variable has not been given a value, the characters
+\fIESC\fP and \fIC\-J\fP will terminate an incremental search.
+.TP
 .B keymap (emacs)
 Set the current readline keymap.  The set of legal keymap names is
 \fIemacs, emacs-standard, emacs-meta, emacs-ctlx, vi, vi-move,
@@ -400,11 +414,6 @@ appended.
 If set to \fBOn\fP, history lines that have been modified are displayed
 with a preceding asterisk (\fB*\fP).
 .TP
-.B meta\-flag (Off)
-If set to \fBOn\fP, readline will enable eight-bit input (that is,
-it will not strip the high bit from the characters it reads),
-regardless of what the terminal claims it can support.
-.TP
 .B output\-meta (Off)
 If set to \fBOn\fP, readline will display characters with the
 eighth bit set directly rather than as a meta-prefixed escape
@@ -509,8 +518,10 @@ As each character of the search string is typed, readline displays
 the next entry from the history matching the string typed so far.
 An incremental search requires only as many characters as needed to
 find the desired history entry.
-The Escape character is used to terminate an incremental search.
-Control-J will also terminate the search.
+The characters present in the value of the \fIisearch-terminators\fP
+variable are used to terminate an incremental search.
+If that variable has not been assigned a value the Escape and
+Control-J characters will terminate an incremental search.
 Control-G will abort an incremental search and restore the original
 line.
 When the search is terminated, the history entry containing the
@@ -647,6 +658,11 @@ the last character typed was not bound to \fBBdelete\-char\fP, then return
 Delete the character behind the cursor.  When given a numeric argument,
 save the deleted text on the kill ring.
 .TP
+.B forward\-backward\-delete\-char   
+Delete the character under the cursor, unless the cursor is at the
+end of the line, in which case the character behind the cursor is
+deleted.  By default, this is not bound to a key.
+.TP
 .B quoted\-insert (C\-q, C\-v)
 Add the next character that you type to the line verbatim.  This is
 how to insert characters like \fBC\-q\fP, for example.
@@ -798,6 +814,13 @@ of matches; a negative argument may be used to move backward
 through the list.
 This command is intended to be bound to \fBTAB\fP, but is unbound
 by default.
+.TP
+.B delete\-char\-or\-list
+Deletes the character under the cursor if not at the beginning or
+end of the line (like \fBdelete-char\fP).
+If at the end of the line, behaves identically to
+\fBpossible-completions\fP.
+This command is unbound by default.
 .PD
 .SS Keyboard Macros
 .PP
@@ -847,7 +870,7 @@ Undo all changes made to this line.  This is like executing the
 .B undo
 command enough times to return the line to its initial state.
 .TP
-.B tilde\-expand (M\-~)
+.B tilde\-expand (M\-&)
 Perform tilde expansion on the current word.
 .TP
 .B set\-mark (C\-@, M-<space>)
diff --git a/contrib/libreadline/readline.3 b/contrib/libreadline/readline.3
index 93b6e8c..5f01b6c 100644
--- a/contrib/libreadline/readline.3
+++ b/contrib/libreadline/readline.3
@@ -6,9 +6,9 @@
 .\"	Case Western Reserve University
 .\"	chet@ins.CWRU.Edu
 .\"
-.\"	Last Change: Thu Feb 19 10:26:47 EST 1998
+.\"	Last Change: Thu Dec 31 10:16:30 EST 1998
 .\"
-.TH READLINE 3 "1998 Feb 19" GNU
+.TH READLINE 3 "1998 Dec 31" GNU
 .\"
 .\" File Name macro.  This used to be `.PN', for Path Name,
 .\" but Sun doesn't seem to like that very much.
@@ -22,6 +22,7 @@ readline \- get a line from a user with editing
 .LP
 .nf
 .ft B
+#include <stdio.h>
 #include <readline/readline.h>
 #include <readline/history.h>
 .ft
@@ -380,6 +381,19 @@ When set to \fBOn\fP, makes readline use a single line for display,
 scrolling the input horizontally on a single screen line when it
 becomes longer than the screen width rather than wrapping to a new line.
 .TP
+.B input\-meta (Off)
+If set to \fBOn\fP, readline will enable eight-bit input (that is,
+it will not strip the high bit from the characters it reads),
+regardless of what the terminal claims it can support.  The name
+.B meta\-flag
+is a synonym for this variable.
+.TP
+.B isearch\-terminators (``C\-[C\-J'')
+The string of characters that should terminate an incremental
+search without subsequently executing the character as a command.
+If this variable has not been given a value, the characters
+\fIESC\fP and \fIC\-J\fP will terminate an incremental search.
+.TP
 .B keymap (emacs)
 Set the current readline keymap.  The set of legal keymap names is
 \fIemacs, emacs-standard, emacs-meta, emacs-ctlx, vi, vi-move,
@@ -400,11 +414,6 @@ appended.
 If set to \fBOn\fP, history lines that have been modified are displayed
 with a preceding asterisk (\fB*\fP).
 .TP
-.B meta\-flag (Off)
-If set to \fBOn\fP, readline will enable eight-bit input (that is,
-it will not strip the high bit from the characters it reads),
-regardless of what the terminal claims it can support.
-.TP
 .B output\-meta (Off)
 If set to \fBOn\fP, readline will display characters with the
 eighth bit set directly rather than as a meta-prefixed escape
@@ -509,8 +518,10 @@ As each character of the search string is typed, readline displays
 the next entry from the history matching the string typed so far.
 An incremental search requires only as many characters as needed to
 find the desired history entry.
-The Escape character is used to terminate an incremental search.
-Control-J will also terminate the search.
+The characters present in the value of the \fIisearch-terminators\fP
+variable are used to terminate an incremental search.
+If that variable has not been assigned a value the Escape and
+Control-J characters will terminate an incremental search.
 Control-G will abort an incremental search and restore the original
 line.
 When the search is terminated, the history entry containing the
@@ -647,6 +658,11 @@ the last character typed was not bound to \fBBdelete\-char\fP, then return
 Delete the character behind the cursor.  When given a numeric argument,
 save the deleted text on the kill ring.
 .TP
+.B forward\-backward\-delete\-char   
+Delete the character under the cursor, unless the cursor is at the
+end of the line, in which case the character behind the cursor is
+deleted.  By default, this is not bound to a key.
+.TP
 .B quoted\-insert (C\-q, C\-v)
 Add the next character that you type to the line verbatim.  This is
 how to insert characters like \fBC\-q\fP, for example.
@@ -798,6 +814,13 @@ of matches; a negative argument may be used to move backward
 through the list.
 This command is intended to be bound to \fBTAB\fP, but is unbound
 by default.
+.TP
+.B delete\-char\-or\-list
+Deletes the character under the cursor if not at the beginning or
+end of the line (like \fBdelete-char\fP).
+If at the end of the line, behaves identically to
+\fBpossible-completions\fP.
+This command is unbound by default.
 .PD
 .SS Keyboard Macros
 .PP
@@ -847,7 +870,7 @@ Undo all changes made to this line.  This is like executing the
 .B undo
 command enough times to return the line to its initial state.
 .TP
-.B tilde\-expand (M\-~)
+.B tilde\-expand (M\-&)
 Perform tilde expansion on the current word.
 .TP
 .B set\-mark (C\-@, M-<space>)
diff --git a/contrib/libreadline/readline.h b/contrib/libreadline/readline.h
index 0457e08a..6e9d3c1 100644
--- a/contrib/libreadline/readline.h
+++ b/contrib/libreadline/readline.h
@@ -23,10 +23,16 @@
 #if !defined (_READLINE_H_)
 #define _READLINE_H_
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 #if defined (READLINE_LIBRARY)
+#  include "rlstdc.h"
 #  include "keymaps.h"
 #  include "tilde.h"
 #else
+#  include <readline/rlstdc.h>
 #  include <readline/keymaps.h>
 #  include <readline/tilde.h>
 #endif
@@ -60,78 +66,191 @@ typedef struct _funmap {
 
 extern FUNMAP **funmap;
 
-/* Functions available to bind to key sequences. */
-extern int
-  rl_tilde_expand (), rl_set_mark (), rl_exchange_point_and_mark (),
-  rl_beg_of_line (), rl_backward (), rl_delete (), rl_end_of_line (),
-  rl_forward (), ding (), rl_newline (), rl_kill_line (),
-  rl_copy_region_to_kill (), rl_kill_region (), rl_char_search (),
-  rl_clear_screen (), rl_get_next_history (), rl_get_previous_history (),
-  rl_quoted_insert (), rl_reverse_search_history (), rl_transpose_chars (),
-  rl_unix_line_discard (), rl_unix_word_rubout (),
-  rl_yank (), rl_rubout (), rl_backward_word (), rl_kill_word (),
-  rl_forward_word (), rl_tab_insert (), rl_yank_pop (), rl_yank_nth_arg (),
-  rl_backward_kill_word (), rl_backward_kill_line (), rl_transpose_words (),
-  rl_complete (), rl_possible_completions (), rl_insert_completions (),
-  rl_menu_complete (),
-  rl_do_lowercase_version (), rl_kill_full_line (),
-  rl_digit_argument (), rl_universal_argument (), rl_abort (),
-  rl_undo_command (), rl_revert_line (), rl_beginning_of_history (),
-  rl_end_of_history (), rl_forward_search_history (), rl_insert (),
-  rl_upcase_word (), rl_downcase_word (), rl_capitalize_word (),
-  rl_restart_output (), rl_re_read_init_file (),
-  rl_dump_functions (), rl_dump_variables (), rl_dump_macros (),
-  rl_delete_horizontal_space (), rl_history_search_forward (),
-  rl_history_search_backward (), rl_tty_status (), rl_yank_last_arg (),
-  rl_insert_comment (), rl_backward_char_search (),
-  rl_copy_forward_word (), rl_copy_backward_word ();
-
-/* Not available unless readline is compiled -DPAREN_MATCHING. */
-extern int rl_insert_close ();
-
-/* Not available unless READLINE_CALLBACKS is defined. */
-extern void rl_callback_handler_install ();
-extern void rl_callback_read_char ();
-extern void rl_callback_handler_remove ();
+/* **************************************************************** */
+/*								    */
+/*	     Functions available to bind to key sequences	    */
+/*								    */
+/* **************************************************************** */
 
+/* Bindable commands for numeric arguments. */
+extern int rl_digit_argument __P((int, int));
+extern int rl_universal_argument __P((int, int));
+
+/* Bindable commands for moving the cursor. */
+extern int rl_forward __P((int, int));
+extern int rl_backward __P((int, int));
+extern int rl_beg_of_line __P((int, int));
+extern int rl_end_of_line __P((int, int));
+extern int rl_forward_word __P((int, int));
+extern int rl_backward_word __P((int, int));
+extern int rl_refresh_line __P((int, int));
+extern int rl_clear_screen __P((int, int));
+extern int rl_arrow_keys __P((int, int));
+
+/* Bindable commands for inserting and deleting text. */
+extern int rl_insert __P((int, int));
+extern int rl_quoted_insert __P((int, int));
+extern int rl_tab_insert __P((int, int));
+extern int rl_newline __P((int, int));
+extern int rl_do_lowercase_version __P((int, int));
+extern int rl_rubout __P((int, int));
+extern int rl_delete __P((int, int));
+extern int rl_rubout_or_delete __P((int, int));
+extern int rl_delete_horizontal_space __P((int, int));
+extern int rl_delete_or_show_completions __P((int, int));
+extern int rl_insert_comment __P((int, int));
+
+/* Bindable commands for changing case. */
+extern int rl_upcase_word __P((int, int));
+extern int rl_downcase_word __P((int, int));
+extern int rl_capitalize_word __P((int, int));
+
+/* Bindable commands for transposing characters and words. */
+extern int rl_transpose_words __P((int, int));
+extern int rl_transpose_chars __P((int, int));
+
+/* Bindable commands for searching within a line. */
+extern int rl_char_search __P((int, int));
+extern int rl_backward_char_search __P((int, int));
+
+/* Bindable commands for readline's interface to the command history. */
+extern int rl_beginning_of_history __P((int, int));
+extern int rl_end_of_history __P((int, int));
+extern int rl_get_next_history __P((int, int));
+extern int rl_get_previous_history __P((int, int));
+
+/* Bindable commands for managing the mark and region. */
+extern int rl_set_mark __P((int, int));
+extern int rl_exchange_point_and_mark __P((int, int));
+
+/* Bindable commands to set the editing mode (emacs or vi). */
+extern int rl_vi_editing_mode __P((int, int));
+extern int rl_emacs_editing_mode __P((int, int));
+
+/* Bindable commands for managing key bindings. */
+extern int rl_re_read_init_file __P((int, int));
+extern int rl_dump_functions __P((int, int));
+extern int rl_dump_macros __P((int, int));
+extern int rl_dump_variables __P((int, int));
+
+/* Bindable commands for word completion. */
+extern int rl_complete __P((int, int));
+extern int rl_possible_completions __P((int, int));
+extern int rl_insert_completions __P((int, int));
+extern int rl_menu_complete __P((int, int));
+
+/* Bindable commands for killing and yanking text, and managing the kill ring. */
+extern int rl_kill_word __P((int, int));
+extern int rl_backward_kill_word __P((int, int));
+extern int rl_kill_line __P((int, int));
+extern int rl_backward_kill_line __P((int, int));
+extern int rl_kill_full_line __P((int, int));
+extern int rl_unix_word_rubout __P((int, int));
+extern int rl_unix_line_discard __P((int, int));
+extern int rl_copy_region_to_kill __P((int, int));
+extern int rl_kill_region __P((int, int));
+extern int rl_copy_forward_word __P((int, int));
+extern int rl_copy_backward_word __P((int, int));
+extern int rl_yank __P((int, int));
+extern int rl_yank_pop __P((int, int));
+extern int rl_yank_nth_arg __P((int, int));
+extern int rl_yank_last_arg __P((int, int));
 /* Not available unless __CYGWIN32__ is defined. */
 #ifdef __CYGWIN32__
-extern int rl_paste_from_clipboard ();
+extern int rl_paste_from_clipboard __P((int, int));
 #endif
 
-/* These are *both* defined even when VI_MODE is not. */
-extern int rl_vi_editing_mode (), rl_emacs_editing_mode ();
+/* Bindable commands for incremental searching. */
+extern int rl_reverse_search_history __P((int, int));
+extern int rl_forward_search_history __P((int, int));
+
+/* Bindable keyboard macro commands. */
+extern int rl_start_kbd_macro __P((int, int));
+extern int rl_end_kbd_macro __P((int, int));
+extern int rl_call_last_kbd_macro __P((int, int));
+
+/* Bindable undo commands. */
+extern int rl_revert_line __P((int, int));
+extern int rl_undo_command __P((int, int));
+
+/* Bindable tilde expansion commands. */
+extern int rl_tilde_expand __P((int, int));
+
+/* Bindable terminal control commands. */
+extern int rl_restart_output __P((int, int));
+extern int rl_stop_output __P((int, int));
+
+/* Miscellaneous bindable commands. */
+extern int rl_abort __P((int, int));
+extern int rl_tty_status __P((int, int));
+
+/* Bindable commands for incremental and non-incremental history searching. */
+extern int rl_history_search_forward __P((int, int));
+extern int rl_history_search_backward __P((int, int));
+extern int rl_noninc_forward_search __P((int, int));
+extern int rl_noninc_reverse_search __P((int, int));
+extern int rl_noninc_forward_search_again __P((int, int));
+extern int rl_noninc_reverse_search_again __P((int, int));
+
+/* Not available unless readline is compiled -DPAREN_MATCHING. */
+extern int rl_insert_close __P((int, int));
 
-/* Non incremental history searching. */
-extern int rl_noninc_forward_search ();
-extern int rl_noninc_reverse_search ();
-extern int rl_noninc_forward_search_again ();
-extern int rl_noninc_reverse_search_again ();
+/* Not available unless READLINE_CALLBACKS is defined. */
+extern void rl_callback_handler_install __P((char *, VFunction *));
+extern void rl_callback_read_char __P((void));
+extern void rl_callback_handler_remove __P((void));
 
 /* Things for vi mode. Not available unless readline is compiled -DVI_MODE. */
-extern int rl_vi_check ();
-extern int
-  rl_vi_undo (), rl_vi_redo (), rl_vi_tilde_expand (),
-  rl_vi_movement_mode (), rl_vi_insertion_mode (), rl_vi_arg_digit (),
-  rl_vi_prev_word (), rl_vi_next_word (), rl_vi_char_search (),
-  rl_vi_eof_maybe (), rl_vi_append_mode (), rl_vi_put (),
-  rl_vi_append_eol (), rl_vi_insert_beg (), rl_vi_delete (),
-  rl_vi_first_print (), rl_vi_fword (), rl_vi_fWord (), rl_vi_bword (),
-  rl_vi_bWord (), rl_vi_eword (), rl_vi_eWord (), rl_vi_end_word (),
-  rl_vi_change_case (), rl_vi_match (), rl_vi_bracktype (),
-  rl_vi_change_char (), rl_vi_yank_arg (), rl_vi_search (),
-  rl_vi_search_again (),  rl_vi_subst (), rl_vi_overstrike (),
-  rl_vi_overstrike_delete (), rl_vi_replace(), rl_vi_column (),
-  rl_vi_delete_to (), rl_vi_change_to (), rl_vi_yank_to (),
-  rl_vi_complete (), rl_vi_fetch_history (), rl_vi_set_mark (),
-  rl_vi_goto_mark (), rl_vi_back_to_indent ();
-
-/* Keyboard macro commands. */
-extern int rl_start_kbd_macro (), rl_end_kbd_macro ();
-extern int rl_call_last_kbd_macro ();
-extern void rl_push_macro_input ();
-
-extern int rl_arrow_keys(), rl_refresh_line ();
+/* VI-mode bindable commands. */
+extern int rl_vi_redo __P((int, int));
+extern int rl_vi_undo __P((int, int));
+extern int rl_vi_yank_arg __P((int, int));
+extern int rl_vi_fetch_history __P((int, int));
+extern int rl_vi_search_again __P((int, int));
+extern int rl_vi_search __P((int, int));
+extern int rl_vi_complete __P((int, int));
+extern int rl_vi_tilde_expand __P((int, int));
+extern int rl_vi_prev_word __P((int, int));
+extern int rl_vi_next_word __P((int, int));
+extern int rl_vi_end_word __P((int, int));
+extern int rl_vi_insert_beg __P((int, int));
+extern int rl_vi_append_mode __P((int, int));
+extern int rl_vi_append_eol __P((int, int));
+extern int rl_vi_eof_maybe __P((int, int));
+extern int rl_vi_insertion_mode __P((int, int));
+extern int rl_vi_movement_mode __P((int, int));
+extern int rl_vi_arg_digit __P((int, int));
+extern int rl_vi_change_case __P((int, int));
+extern int rl_vi_put __P((int, int));
+extern int rl_vi_column __P((int, int));
+extern int rl_vi_delete_to __P((int, int));
+extern int rl_vi_change_to __P((int, int));
+extern int rl_vi_yank_to __P((int, int));
+extern int rl_vi_delete __P((int, int));
+extern int rl_vi_back_to_indent __P((int, int));
+extern int rl_vi_first_print __P((int, int));
+extern int rl_vi_char_search __P((int, int));
+extern int rl_vi_match __P((int, int));
+extern int rl_vi_change_char __P((int, int));
+extern int rl_vi_subst __P((int, int));
+extern int rl_vi_overstrike __P((int, int));
+extern int rl_vi_overstrike_delete __P((int, int));
+extern int rl_vi_replace __P((int, int));
+extern int rl_vi_set_mark __P((int, int));
+extern int rl_vi_goto_mark __P((int, int));
+
+/* VI-mode utility functions. */
+extern int rl_vi_check __P((void));
+extern int rl_vi_domove __P((int, int *));
+extern int rl_vi_bracktype __P((int));
+
+/* VI-mode pseudo-bindable commands, used as utility functions. */
+extern int rl_vi_fWord __P((int, int));
+extern int rl_vi_bWord __P((int, int));
+extern int rl_vi_eWord __P((int, int));
+extern int rl_vi_fword __P((int, int));
+extern int rl_vi_bword __P((int, int));
+extern int rl_vi_eword __P((int, int));
 
 /* **************************************************************** */
 /*								    */
@@ -141,51 +260,80 @@ extern int rl_arrow_keys(), rl_refresh_line ();
 
 /* Readline functions. */
 /* Read a line of input.  Prompt with PROMPT.  A NULL PROMPT means none. */
-extern char *readline ();
-
-/* These functions are from bind.c. */
-/* rl_add_defun (char *name, Function *function, int key)
-   Add NAME to the list of named functions.  Make FUNCTION
-   be the function that gets called.
-   If KEY is not -1, then bind it. */
-extern int rl_add_defun ();
-
-extern char *rl_get_keymap_name ();
-
-extern int rl_bind_key (), rl_bind_key_in_map ();
-extern int rl_unbind_key (), rl_unbind_key_in_map ();
-extern int rl_unbind_function_in_map (), rl_unbind_command_in_map ();
-extern int rl_set_key ();
-extern int rl_generic_bind ();
-extern int rl_parse_and_bind ();
-/* Backwards compatibility, use rl_generic_bind instead. */
-extern int rl_macro_bind (), rl_variable_bind ();
+extern char *readline __P((char *));
 
-extern int rl_read_init_file ();
+extern int rl_initialize __P((void));
 
-extern Function *rl_named_function (), *rl_function_of_keyseq ();
-extern char **rl_invoking_keyseqs (), **rl_invoking_keyseqs_in_map ();
-extern void rl_function_dumper ();
-extern void rl_variable_dumper ();
-extern void rl_macro_dumper ();
-extern void rl_list_funmap_names ();
+extern int rl_discard_argument __P((void));
 
-/* Undocumented in the texinfo manual; not really useful to programs. */
-extern int rl_translate_keyseq ();
-extern void rl_initialize_funmap ();
+/* Utility functions to bind keys to readline commands. */
+extern int rl_add_defun __P((char *, Function *, int));
+extern int rl_bind_key __P((int, Function *));
+extern int rl_bind_key_in_map __P((int, Function *, Keymap));
+extern int rl_unbind_key __P((int));
+extern int rl_unbind_key_in_map __P((int, Keymap));
+extern int rl_unbind_function_in_map __P((Function *, Keymap));
+extern int rl_unbind_command_in_map __P((char *, Keymap));
+extern int rl_set_key __P((char *, Function *, Keymap));
+extern int rl_generic_bind __P((int, char *, char *, Keymap));
+extern int rl_variable_bind __P((char *, char *));
 
-/* Functions for undoing. */
-extern int rl_begin_undo_group (), rl_end_undo_group ();
-extern void rl_add_undo (), free_undo_list ();
-extern int rl_do_undo ();
-extern int rl_modifying ();
+/* Backwards compatibility, use rl_generic_bind instead. */
+extern int rl_macro_bind __P((char *, char *, Keymap));
+
+/* Undocumented in the texinfo manual; not really useful to programs. */
+extern int rl_translate_keyseq __P((char *, char *, int *));
+extern char *rl_untranslate_keyseq __P((int));
+
+extern Function *rl_named_function __P((char *));
+extern Function *rl_function_of_keyseq __P((char *, Keymap, int *));
+
+extern void rl_list_funmap_names __P((void));
+extern char **rl_invoking_keyseqs_in_map __P((Function *, Keymap));
+extern char **rl_invoking_keyseqs __P((Function *));
+ 
+extern void rl_function_dumper __P((int));
+extern void rl_macro_dumper __P((int));
+extern void rl_variable_dumper __P((int));
+
+extern int rl_read_init_file __P((char *));
+extern int rl_parse_and_bind __P((char *));
+
+/* Functions for manipulating keymaps. */
+extern Keymap rl_make_bare_keymap __P((void));
+extern Keymap rl_copy_keymap __P((Keymap));
+extern Keymap rl_make_keymap __P((void));
+extern void rl_discard_keymap __P((Keymap));
+
+extern Keymap rl_get_keymap_by_name __P((char *));
+extern char *rl_get_keymap_name __P((Keymap));
+extern void rl_set_keymap __P((Keymap));
+extern Keymap rl_get_keymap __P((void));
+extern void rl_set_keymap_from_edit_mode __P((void));
+extern char *rl_get_keymap_name_from_edit_mode __P((void));
+
+/* Functions for manipulating the funmap, which maps command names to functions. */
+extern int rl_add_funmap_entry __P((char *, Function *));
+extern void rl_initialize_funmap __P((void));
+extern char **rl_funmap_names __P((void));
+
+/* Utility functions for managing keyboard macros. */
+extern void rl_push_macro_input __P((char *));
+
+/* Functions for undoing, from undo.c */
+extern void rl_add_undo __P((enum undo_code, int, int, char *));
+extern void free_undo_list __P((void));
+extern int rl_do_undo __P((void));
+extern int rl_begin_undo_group __P((void));
+extern int rl_end_undo_group __P((void));
+extern int rl_modifying __P((int, int));
 
 /* Functions for redisplay. */
-extern void rl_redisplay ();
-extern int rl_forced_update_display ();
-extern int rl_clear_message ();
-extern int rl_reset_line_state ();
-extern int rl_on_new_line ();
+extern void rl_redisplay __P((void));
+extern int rl_on_new_line __P((void));
+extern int rl_forced_update_display __P((void));
+extern int rl_clear_message __P((void));
+extern int rl_reset_line_state __P((void));
 
 #if defined (__STDC__) && defined (USE_VARARGS) && defined (PREFER_STDARG)
 extern int rl_message (const char *, ...);
@@ -194,36 +342,59 @@ extern int rl_message ();
 #endif
 
 /* Undocumented in texinfo manual. */
-extern int rl_character_len ();
-extern int rl_show_char ();
-extern int crlf ();
-
-/* Modifying text. */
-extern int rl_insert_text (), rl_delete_text ();
-extern int rl_kill_text ();
-extern char *rl_copy_text ();
-
-/* `Public' utility functions. */
-extern int rl_reset_terminal ();
-extern int rl_stuff_char ();
-extern int rl_read_key (), rl_getc ();
+extern int rl_show_char __P((int));
+extern int rl_character_len __P((int, int));
+extern int crlf __P((void));
 
-extern int rl_initialize ();
+/* Save and restore internal prompt redisplay information. */
+extern void rl_save_prompt __P((void));
+extern void rl_restore_prompt __P((void));
 
+/* Modifying text. */
+extern int rl_insert_text __P((char *));
+extern int rl_delete_text __P((int, int));
+extern int rl_kill_text __P((int, int));
+extern char *rl_copy_text __P((int, int));
+
+/* Terminal and tty mode management. */
+extern void rl_prep_terminal __P((int));
+extern void rl_deprep_terminal __P((void));
+extern void rltty_set_default_bindings __P((Keymap));
+
+extern int rl_reset_terminal __P((char *));
+extern void rl_resize_terminal __P((void));
+
+/* `Public' utility functions . */
+extern void rl_extend_line_buffer __P((int));
+extern int ding __P((void));
+
+/* Functions for character input. */
+extern int rl_stuff_char __P((int));
+extern int rl_execute_next __P((int));
+extern int rl_read_key __P((void));
+extern int rl_getc __P((FILE *));
+
+/* Readline signal handling, from signals.c */
+extern int rl_set_signals __P((void));
+extern int rl_clear_signals __P((void));
+extern void rl_cleanup_after_signal __P((void));
+extern void rl_reset_after_signal __P((void));
+extern void rl_free_line_state __P((void));
+ 
 /* Undocumented. */
-extern int rl_expand_prompt ();
-extern int rl_set_signals (), rl_clear_signals ();
-extern int maybe_save_line (), maybe_unsave_line (), maybe_replace_line ();
+extern int rl_expand_prompt __P((char *));
+
+extern int maybe_save_line __P((void));
+extern int maybe_unsave_line __P((void));
+extern int maybe_replace_line __P((void));
 
 /* Completion functions. */
-/* These functions are from complete.c. */
-extern int rl_complete_internal ();
+extern int rl_complete_internal __P((int));
+extern void rl_display_match_list __P((char **, int, int));
 
-/* Return an array of strings which are the result of repeatadly calling
-   FUNC with TEXT. */
-extern char **completion_matches ();
-extern char *username_completion_function ();
-extern char *filename_completion_function ();
+extern char **completion_matches __P((char *, CPFunction *));
+extern char *username_completion_function __P((char *, int));
+extern char *filename_completion_function __P((char *, int));
 
 /* **************************************************************** */
 /*								    */
@@ -248,10 +419,14 @@ extern char *rl_line_buffer;
 /* The location of point, and end. */
 extern int rl_point, rl_end;
 
+/* The mark, or saved cursor position. */
 extern int rl_mark;
 
+/* Flag to indicate that readline has finished with the current input
+   line and should return it. */
 extern int rl_done;
 
+/* If set to a character value, that will be the next keystroke read. */
 extern int rl_pending_input;
 
 /* Non-zero if we called this function from _rl_dispatch().  It's present
@@ -269,6 +444,11 @@ extern FILE *rl_instream, *rl_outstream;
    before readline_internal () prints the first prompt. */
 extern Function *rl_startup_hook;
 
+/* If non-zero, this is the address of a function to call just before
+   readline_internal_setup () returns and readline_internal starts
+   reading input characters. */
+extern Function *rl_pre_input_hook;
+      
 /* The address of a function to call periodically while Readline is
    awaiting character input, or NULL, for no event handling. */
 extern Function *rl_event_hook;
@@ -282,6 +462,24 @@ extern VFunction *rl_deprep_term_function;
 extern Keymap rl_executing_keymap;
 extern Keymap rl_binding_keymap;
 
+/* Display variables. */
+/* If non-zero, readline will erase the entire line, including any prompt,
+   if the only thing typed on an otherwise-blank line is something bound to
+   rl_newline. */
+extern int rl_erase_empty_line;
+
+/* Variables to control readline signal handling. */
+/* If non-zero, readline will install its own signal handlers for
+   SIGINT, SIGTERM, SIGQUIT, SIGALRM, SIGTSTP, SIGTTIN, and SIGTTOU. */
+extern int rl_catch_signals;
+
+/* If non-zero, readline will install a signal handler for SIGWINCH
+   that also attempts to call any calling application's SIGWINCH signal
+   handler.  Note that the terminal is not cleaned up before the
+   application's signal handler is called; use rl_cleanup_after_signal()
+   to do that. */
+extern int rl_catch_sigwinch;
+
 /* Completion variables. */
 /* Pointer to the generator function for completion_matches ().
    NULL means to use filename_entry_function (), the default filename
@@ -340,6 +538,15 @@ extern Function *rl_directory_completion_hook;
 /* Backwards compatibility with previous versions of readline. */
 #define rl_symbolic_link_hook rl_directory_completion_hook
 
+/* If non-zero, then this is the address of a function to call when
+   completing a word would normally display the list of possible matches.
+   This function is called instead of actually doing the display.
+   It takes three arguments: (char **matches, int num_matches, int max_length)
+   where MATCHES is the array of strings that matched, NUM_MATCHES is the
+   number of strings in that array, and MAX_LENGTH is the length of the
+   longest string in that array. */
+extern VFunction *rl_completion_display_matches_hook;
+
 /* Non-zero means that the results of the matches are to be treated
    as filenames.  This is ALWAYS zero on entry, and can only be changed
    within a completion entry finder function. */
@@ -408,4 +615,8 @@ extern int rl_inhibit_completion;
 extern char *savestring ();	/* XXX backwards compatibility */
 #endif
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif /* _READLINE_H_ */
diff --git a/contrib/libreadline/rlconf.h b/contrib/libreadline/rlconf.h
index e5594ce..1356fd8 100644
--- a/contrib/libreadline/rlconf.h
+++ b/contrib/libreadline/rlconf.h
@@ -32,7 +32,7 @@
 
 /* If defined, readline shows opening parens and braces when closing
    paren or brace entered. */
-#define PAREN_MATCHING
+/* #define PAREN_MATCHING */
 
 /* This definition is needed by readline.c, rltty.c, and signals.c. */
 /* If on, then readline handles signals in a way that doesn't screw. */
@@ -56,8 +56,6 @@
 
 /* Define this if you want code that allows readline to be used in an
    X `callback' style. */
-#if !defined (SHELL)
-#  define READLINE_CALLBACKS
-#endif
+#define READLINE_CALLBACKS
 
 #endif /* _RLCONF_H_ */
diff --git a/contrib/libreadline/savestring.c b/contrib/libreadline/savestring.c
deleted file mode 100644
index 3f53a87..0000000
--- a/contrib/libreadline/savestring.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/* savestring.c  */
-
-/* Copyright (C) 1998 Free Software Foundation, Inc.
-
-   This file is part of the GNU Readline Library, a library for
-   reading lines of text with interactive input and history editing.
-
-   The GNU Readline Library is free software; you can redistribute it
-   and/or modify it under the terms of the GNU General Public License
-   as published by the Free Software Foundation; either version 1, or
-   (at your option) any later version.
-
-   The GNU Readline Library is distributed in the hope that it will be
-   useful, but WITHOUT ANY WARRANTY; without even the implied warranty
-   of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   The GNU General Public License is often shipped with GNU software, and
-   is generally kept in a file called COPYING or LICENSE.  If you do not
-   have a copy of the license, write to the Free Software Foundation,
-   675 Mass Ave, Cambridge, MA 02139, USA. */
-
-extern char *strcpy ();
-extern char *xmalloc ();
-
-/* Backwards compatibility, now that savestring has been removed from
-   all `public' readline header files. */
-char *
-savestring (s)
-     char *s;
-{
-  return ((char *)strcpy (xmalloc (1 + (int)strlen (s)), (s)));
-}
diff --git a/contrib/libreadline/shell.c b/contrib/libreadline/shell.c
index 15e87aa..091ec08 100644
--- a/contrib/libreadline/shell.c
+++ b/contrib/libreadline/shell.c
@@ -26,10 +26,9 @@
 #  include <config.h>
 #endif
 
+#include <sys/types.h>
+
 #if defined (HAVE_UNISTD_H)
-#  ifdef _MINIX
-#    include <sys/types.h>
-#  endif
 #  include <unistd.h>
 #endif /* HAVE_UNISTD_H */
 
@@ -45,22 +44,16 @@
 #  include <strings.h>
 #endif /* !HAVE_STRING_H */
 
-extern char *xmalloc (), *xrealloc ();
+#include <pwd.h>
 
-#if !defined (SHELL)
+#if !defined (HAVE_GETPW_DECLS)
+extern struct passwd *getpwuid ();
+#endif /* !HAVE_GETPW_DECLS */
 
-#ifdef savestring
-#undef savestring
-#endif
+extern char *xmalloc ();
 
-/* Backwards compatibility, now that savestring has been removed from
-   all `public' readline header files. */
-char *
-rl_savestring (s)
-     char *s;
-{
-  return ((char *)strcpy (xmalloc (1 + (int)strlen (s)), (s)));
-}
+/* All of these functions are resolved from bash if we are linking readline
+   as part of bash. */
 
 /* Does shell-like quoting using single quotes. */
 char *
@@ -126,13 +119,15 @@ get_env_value (varname)
   return ((char *)getenv (varname));
 }
 
-#else /* SHELL */
-extern char *get_string_value ();
-
 char *
-get_env_value (varname)
-     char *varname;
+get_home_dir ()
 {
-  return get_string_value (varname);
-}	
-#endif /* SHELL */
+  char *home_dir;
+  struct passwd *entry;
+
+  home_dir = (char *)NULL;
+  entry = getpwuid (getuid ());
+  if (entry)
+    home_dir = entry->pw_dir;
+  return (home_dir);
+}
diff --git a/contrib/libreadline/util.c b/contrib/libreadline/util.c
index fde012e..1dc3b66 100644
--- a/contrib/libreadline/util.c
+++ b/contrib/libreadline/util.c
@@ -64,6 +64,7 @@ extern int _rl_defining_kbd_macro;
 extern char *_rl_executing_macro;
 
 /* Pseudo-global functions imported from other library files. */
+extern void _rl_replace_text ();
 extern void _rl_pop_executing_macro ();
 extern void _rl_set_the_line ();
 extern void _rl_init_argument ();
@@ -124,7 +125,7 @@ rl_tty_status (count, key)
 {
 #if defined (TIOCSTAT)
   ioctl (1, TIOCSTAT, (char *)0);
-  rl_refresh_line ();
+  rl_refresh_line (count, key);
 #else
   ding ();
 #endif