GNU readline-4.1

1 files changed, 2101 insertions, 0 deletions

diff --git a/gnu/lib/libreadline/bind.c b/gnu/lib/libreadline/bind.c
new file mode 100644
index 00000000000..6a6424e9e02
--- /dev/null
+++ b/gnu/lib/libreadline/bind.c
@@ -0,0 +1,2101 @@
+/* bind.c -- key binding and startup file support for the readline library. */
+
+/* Copyright (C) 1987, 1989, 1992 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 2, 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,
+   59 Temple Place, Suite 330, Boston, MA 02111 USA. */
+#define READLINE_LIBRARY
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <fcntl.h>
+#if defined (HAVE_SYS_FILE_H)
+#  include <sys/file.h>
+#endif /* HAVE_SYS_FILE_H */
+
+#if defined (HAVE_UNISTD_H)
+#  include <unistd.h>
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+#  include <stdlib.h>
+#else
+#  include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <errno.h>
+
+#if !defined (errno)
+extern int errno;
+#endif /* !errno */
+
+#include "posixstat.h"
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+#include "rlprivate.h"
+#include "rlshell.h"
+#include "xmalloc.h"
+
+#if !defined (strchr) && !defined (__STDC__)
+extern char *strchr (), *strrchr ();
+#endif /* !strchr && !__STDC__ */
+
+/* Variables exported by this file. */
+Keymap rl_binding_keymap;
+
+static int _rl_read_init_file __P((char *, int));
+static int glean_key_from_name __P((char *));
+static int substring_member_of_array __P((char *, char **));
+
+static int currently_reading_init_file;
+
+/* used only in this file */
+static int _rl_prefer_visible_bell = 1;
+
+/* **************************************************************** */
+/*								    */
+/*			Binding keys				    */
+/*								    */
+/* **************************************************************** */
+
+/* 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. */
+int
+rl_add_defun (name, function, key)
+     char *name;
+     Function *function;
+     int key;
+{
+  if (key != -1)
+    rl_bind_key (key, function);
+  rl_add_funmap_entry (name, function);
+  return 0;
+}
+
+/* Bind KEY to FUNCTION.  Returns non-zero if KEY is out of range. */
+int
+rl_bind_key (key, function)
+     int key;
+     Function *function;
+{
+  if (key < 0)
+    return (key);
+
+  if (META_CHAR (key) && _rl_convert_meta_chars_to_ascii)
+    {
+      if (_rl_keymap[ESC].type == ISKMAP)
+	{
+	  Keymap escmap;
+
+	  escmap = FUNCTION_TO_KEYMAP (_rl_keymap, ESC);
+	  key = UNMETA (key);
+	  escmap[key].type = ISFUNC;
+	  escmap[key].function = function;
+	  return (0);
+	}
+      return (key);
+    }
+
+  _rl_keymap[key].type = ISFUNC;
+  _rl_keymap[key].function = function;
+  rl_binding_keymap = _rl_keymap;
+  return (0);
+}
+
+/* Bind KEY to FUNCTION in MAP.  Returns non-zero in case of invalid
+   KEY. */
+int
+rl_bind_key_in_map (key, function, map)
+     int key;
+     Function *function;
+     Keymap map;
+{
+  int result;
+  Keymap oldmap;
+
+  oldmap = _rl_keymap;
+  _rl_keymap = map;
+  result = rl_bind_key (key, function);
+  _rl_keymap = oldmap;
+  return (result);
+}
+
+/* Make KEY do nothing in the currently selected keymap.
+   Returns non-zero in case of error. */
+int
+rl_unbind_key (key)
+     int key;
+{
+  return (rl_bind_key (key, (Function *)NULL));
+}
+
+/* Make KEY do nothing in MAP.
+   Returns non-zero in case of error. */
+int
+rl_unbind_key_in_map (key, map)
+     int key;
+     Keymap map;
+{
+  return (rl_bind_key_in_map (key, (Function *)NULL, map));
+}
+
+/* Unbind all keys bound to FUNCTION in MAP. */
+int
+rl_unbind_function_in_map (func, map)
+     Function *func;
+     Keymap map;
+{
+  register int i, rval;
+
+  for (i = rval = 0; i < KEYMAP_SIZE; i++)
+    {
+      if (map[i].type == ISFUNC && map[i].function == func)
+	{
+	  map[i].function = (Function *)NULL;
+	  rval = 1;
+	}
+    }
+  return rval;
+}
+
+int
+rl_unbind_command_in_map (command, map)
+     char *command;
+     Keymap map;
+{
+  Function *func;
+
+  func = rl_named_function (command);
+  if (func == 0)
+    return 0;
+  return (rl_unbind_function_in_map (func, map));
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+   FUNCTION.  This makes new keymaps as necessary.  The initial
+   place to do bindings is in MAP. */
+int
+rl_set_key (keyseq, function, map)
+     char *keyseq;
+     Function *function;
+     Keymap map;
+{
+  return (rl_generic_bind (ISFUNC, keyseq, (char *)function, map));
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+   the string of characters MACRO.  This makes new keymaps as
+   necessary.  The initial place to do bindings is in MAP. */
+int
+rl_macro_bind (keyseq, macro, map)
+     char *keyseq, *macro;
+     Keymap map;
+{
+  char *macro_keys;
+  int macro_keys_len;
+
+  macro_keys = (char *)xmalloc ((2 * strlen (macro)) + 1);
+
+  if (rl_translate_keyseq (macro, macro_keys, &macro_keys_len))
+    {
+      free (macro_keys);
+      return -1;
+    }
+  rl_generic_bind (ISMACR, keyseq, macro_keys, map);
+  return 0;
+}
+
+/* Bind the key sequence represented by the string KEYSEQ to
+   the arbitrary pointer DATA.  TYPE says what kind of data is
+   pointed to by DATA, right now this can be a function (ISFUNC),
+   a macro (ISMACR), or a keymap (ISKMAP).  This makes new keymaps
+   as necessary.  The initial place to do bindings is in MAP. */
+int
+rl_generic_bind (type, keyseq, data, map)
+     int type;
+     char *keyseq, *data;
+     Keymap map;
+{
+  char *keys;
+  int keys_len;
+  register int i;
+
+  /* If no keys to bind to, exit right away. */
+  if (!keyseq || !*keyseq)
+    {
+      if (type == ISMACR)
+	free (data);
+      return -1;
+    }
+
+  keys = xmalloc (1 + (2 * strlen (keyseq)));
+
+  /* Translate the ASCII representation of KEYSEQ into an array of
+     characters.  Stuff the characters into KEYS, and the length of
+     KEYS into KEYS_LEN. */
+  if (rl_translate_keyseq (keyseq, keys, &keys_len))
+    {
+      free (keys);
+      return -1;
+    }
+
+  /* Bind keys, making new keymaps as necessary. */
+  for (i = 0; i < keys_len; i++)
+    {
+      int ic = (int) ((unsigned char)keys[i]);
+
+      if (_rl_convert_meta_chars_to_ascii && META_CHAR (ic))
+	{
+	  ic = UNMETA (ic);
+	  if (map[ESC].type == ISKMAP)
+	    map = FUNCTION_TO_KEYMAP (map, ESC);
+	}
+
+      if ((i + 1) < keys_len)
+	{
+	  if (map[ic].type != ISKMAP)
+	    {
+	      if (map[ic].type == ISMACR)
+		free ((char *)map[ic].function);
+
+	      map[ic].type = ISKMAP;
+	      map[ic].function = KEYMAP_TO_FUNCTION (rl_make_bare_keymap());
+	    }
+	  map = FUNCTION_TO_KEYMAP (map, ic);
+	}
+      else
+	{
+	  if (map[ic].type == ISMACR)
+	    free ((char *)map[ic].function);
+
+	  map[ic].function = KEYMAP_TO_FUNCTION (data);
+	  map[ic].type = type;
+	}
+
+      rl_binding_keymap = map;
+    }
+  free (keys);
+  return 0;
+}
+
+/* Translate the ASCII representation of SEQ, stuffing the values into ARRAY,
+   an array of characters.  LEN gets the final length of ARRAY.  Return
+   non-zero if there was an error parsing SEQ. */
+int
+rl_translate_keyseq (seq, array, len)
+     char *seq, *array;
+     int *len;
+{
+  register int i, c, l, temp;
+
+  for (i = l = 0; c = seq[i]; i++)
+    {
+      if (c == '\\')
+	{
+	  c = seq[++i];
+
+	  if (c == 0)
+	    break;
+
+	  /* Handle \C- and \M- prefixes. */
+	  if ((c == 'C' || c == 'M') && seq[i + 1] == '-')
+	    {
+	      /* Handle special case of backwards define. */
+	      if (strncmp (&seq[i], "C-\\M-", 5) == 0)
+		{
+		  array[l++] = ESC;
+		  i += 5;
+		  array[l++] = CTRL (_rl_to_upper (seq[i]));
+		  if (seq[i] == '\0')
+		    i--;
+		}
+	      else if (c == 'M')
+		{
+		  i++;
+		  array[l++] = ESC;	/* XXX */
+		}
+	      else if (c == 'C')
+		{
+		  i += 2;
+		  /* Special hack for C-?... */
+		  array[l++] = (seq[i] == '?') ? RUBOUT : CTRL (_rl_to_upper (seq[i]));
+		}
+	      continue;
+	    }	      
+
+	  /* Translate other backslash-escaped characters.  These are the
+	     same escape sequences that bash's `echo' and `printf' builtins
+	     handle, with the addition of \d -> RUBOUT.  A backslash
+	     preceding a character that is not special is stripped. */
+	  switch (c)
+	    {
+	    case 'a':
+	      array[l++] = '\007';
+	      break;
+	    case 'b':
+	      array[l++] = '\b';
+	      break;
+	    case 'd':
+	      array[l++] = RUBOUT;	/* readline-specific */
+	      break;
+	    case 'e':
+	      array[l++] = ESC;
+	      break;
+	    case 'f':
+	      array[l++] = '\f';
+	      break;
+	    case 'n':
+	      array[l++] = NEWLINE;
+	      break;
+	    case 'r':
+	      array[l++] = RETURN;
+	      break;
+	    case 't':
+	      array[l++] = TAB;
+	      break;
+	    case 'v':
+	      array[l++] = 0x0B;
+	      break;
+	    case '\\':
+	      array[l++] = '\\';
+	      break;
+	    case '0': case '1': case '2': case '3':
+	    case '4': case '5': case '6': case '7':
+	      i++;
+	      for (temp = 2, c -= '0'; ISOCTAL (seq[i]) && temp--; i++)
+	        c = (c * 8) + OCTVALUE (seq[i]);
+	      i--;	/* auto-increment in for loop */
+	      array[l++] = c % (largest_char + 1);
+	      break;
+	    case 'x':
+	      i++;
+	      for (temp = 3, c = 0; isxdigit (seq[i]) && temp--; i++)
+	        c = (c * 16) + HEXVALUE (seq[i]);
+	      if (temp == 3)
+	        c = 'x';
+	      i--;	/* auto-increment in for loop */
+	      array[l++] = c % (largest_char + 1);
+	      break;
+	    default:	/* backslashes before non-special chars just add the char */
+	      array[l++] = c;
+	      break;	/* the backslash is stripped */
+	    }
+	  continue;
+	}
+
+      array[l++] = c;
+    }
+
+  *len = l;
+  array[l] = '\0';
+  return (0);
+}
+
+char *
+rl_untranslate_keyseq (seq)
+     int seq;
+{
+  static char kseq[16];
+  int i, c;
+
+  i = 0;
+  c = seq;
+  if (META_CHAR (c))
+    {
+      kseq[i++] = '\\';
+      kseq[i++] = 'M';
+      kseq[i++] = '-';
+      c = UNMETA (c);
+    }
+  else if (CTRL_CHAR (c))
+    {
+      kseq[i++] = '\\';
+      kseq[i++] = 'C';
+      kseq[i++] = '-';
+      c = _rl_to_lower (UNCTRL (c));
+    }
+  else if (c == RUBOUT)
+    {
+      kseq[i++] = '\\';
+      kseq[i++] = 'C';
+      kseq[i++] = '-';
+      c = '?';
+    }
+
+  if (c == ESC)
+    {
+      kseq[i++] = '\\';
+      c = 'e';
+    }
+  else if (c == '\\' || c == '"')
+    {
+      kseq[i++] = '\\';
+    }
+
+  kseq[i++] = (unsigned char) c;
+  kseq[i] = '\0';
+  return kseq;
+}
+
+static char *
+_rl_untranslate_macro_value (seq)
+     char *seq;
+{
+  char *ret, *r, *s;
+  int c;
+
+  r = ret = xmalloc (7 * strlen (seq) + 1);
+  for (s = seq; *s; s++)
+    {
+      c = *s;
+      if (META_CHAR (c))
+	{
+	  *r++ = '\\';
+	  *r++ = 'M';
+	  *r++ = '-';
+	  c = UNMETA (c);
+	}
+      else if (CTRL_CHAR (c) && c != ESC)
+	{
+	  *r++ = '\\';
+	  *r++ = 'C';
+	  *r++ = '-';
+	  c = _rl_to_lower (UNCTRL (c));
+	}
+      else if (c == RUBOUT)
+ 	{
+ 	  *r++ = '\\';
+ 	  *r++ = 'C';
+ 	  *r++ = '-';
+ 	  c = '?';
+ 	}
+
+      if (c == ESC)
+	{
+	  *r++ = '\\';
+	  c = 'e';
+	}
+      else if (c == '\\' || c == '"')
+	*r++ = '\\';
+
+      *r++ = (unsigned char)c;
+    }
+  *r = '\0';
+  return ret;
+}
+
+/* Return a pointer to the function that STRING represents.
+   If STRING doesn't have a matching function, then a NULL pointer
+   is returned. */
+Function *
+rl_named_function (string)
+     char *string;
+{
+  register int i;
+
+  rl_initialize_funmap ();
+
+  for (i = 0; funmap[i]; i++)
+    if (_rl_stricmp (funmap[i]->name, string) == 0)
+      return (funmap[i]->function);
+  return ((Function *)NULL);
+}
+
+/* Return the function (or macro) definition which would be invoked via
+   KEYSEQ if executed in MAP.  If MAP is NULL, then the current keymap is
+   used.  TYPE, if non-NULL, is a pointer to an int which will receive the
+   type of the object pointed to.  One of ISFUNC (function), ISKMAP (keymap),
+   or ISMACR (macro). */
+Function *
+rl_function_of_keyseq (keyseq, map, type)
+     char *keyseq;
+     Keymap map;
+     int *type;
+{
+  register int i;
+
+  if (!map)
+    map = _rl_keymap;
+
+  for (i = 0; keyseq && keyseq[i]; i++)
+    {
+      int ic = keyseq[i];
+
+      if (META_CHAR (ic) && _rl_convert_meta_chars_to_ascii)
+	{
+	  if (map[ESC].type != ISKMAP)
+	    {
+	      if (type)
+		*type = map[ESC].type;
+
+	      return (map[ESC].function);
+	    }
+	  else
+	    {
+	      map = FUNCTION_TO_KEYMAP (map, ESC);
+	      ic = UNMETA (ic);
+	    }
+	}
+
+      if (map[ic].type == ISKMAP)
+	{
+	  /* If this is the last key in the key sequence, return the
+	     map. */
+	  if (!keyseq[i + 1])
+	    {
+	      if (type)
+		*type = ISKMAP;
+
+	      return (map[ic].function);
+	    }
+	  else
+	    map = FUNCTION_TO_KEYMAP (map, ic);
+	}
+      else
+	{
+	  if (type)
+	    *type = map[ic].type;
+
+	  return (map[ic].function);
+	}
+    }
+  return ((Function *) NULL);
+}
+
+/* The last key bindings file read. */
+static char *last_readline_init_file = (char *)NULL;
+
+/* The file we're currently reading key bindings from. */
+static char *current_readline_init_file;
+static int current_readline_init_include_level;
+static int current_readline_init_lineno;
+
+/* Read FILENAME into a locally-allocated buffer and return the buffer.
+   The size of the buffer is returned in *SIZEP.  Returns NULL if any
+   errors were encountered. */
+static char *
+_rl_read_file (filename, sizep)
+     char *filename;
+     size_t *sizep;
+{
+  struct stat finfo;
+  size_t file_size;
+  char *buffer;
+  int i, file;
+
+  if ((stat (filename, &finfo) < 0) || (file = open (filename, O_RDONLY, 0666)) < 0)
+    return ((char *)NULL);
+
+  file_size = (size_t)finfo.st_size;
+
+  /* check for overflow on very large files */
+  if (file_size != finfo.st_size || file_size + 1 < file_size)
+    {
+      if (file >= 0)
+	close (file);
+#if defined (EFBIG)
+      errno = EFBIG;
+#endif
+      return ((char *)NULL);
+    }
+
+  /* Read the file into BUFFER. */
+  buffer = (char *)xmalloc (file_size + 1);
+  i = read (file, buffer, file_size);
+  close (file);
+
+#if 0
+  if (i < file_size)
+#else
+  if (i < 0)
+#endif
+    {
+      free (buffer);
+      return ((char *)NULL);
+    }
+
+#if 0
+  buffer[file_size] = '\0';
+  if (sizep)
+    *sizep = file_size;
+#else
+  buffer[i] = '\0';
+  if (sizep)
+    *sizep = i;
+#endif
+
+  return (buffer);
+}
+
+/* Re-read the current keybindings file. */
+int
+rl_re_read_init_file (count, ignore)
+     int count, ignore;
+{
+  int r;
+  r = rl_read_init_file ((char *)NULL);
+  rl_set_keymap_from_edit_mode ();
+  return r;
+}
+
+/* Do key bindings from a file.  If FILENAME is NULL it defaults
+   to the first non-null filename from this list:
+     1. the filename used for the previous call
+     2. the value of the shell variable `INPUTRC'
+     3. ~/.inputrc
+   If the file existed and could be opened and read, 0 is returned,
+   otherwise errno is returned. */
+int
+rl_read_init_file (filename)
+     char *filename;
+{
+  /* Default the filename. */
+  if (filename == 0)
+    {
+      filename = last_readline_init_file;
+      if (filename == 0)
+        filename = get_env_value ("INPUTRC");
+      if (filename == 0)
+	filename = DEFAULT_INPUTRC;
+    }
+
+  if (*filename == 0)
+    filename = DEFAULT_INPUTRC;
+
+#if defined (__MSDOS__)
+  if (_rl_read_init_file (filename, 0) == 0)
+    return 0;
+  filename = "~/_inputrc";
+#endif
+  return (_rl_read_init_file (filename, 0));
+}
+
+static int
+_rl_read_init_file (filename, include_level)
+     char *filename;
+     int include_level;
+{
+  register int i;
+  char *buffer, *openname, *line, *end;
+  size_t file_size;
+
+  current_readline_init_file = filename;
+  current_readline_init_include_level = include_level;
+
+  openname = tilde_expand (filename);
+  buffer = _rl_read_file (openname, &file_size);
+  free (openname);
+
+  if (buffer == 0)
+    return (errno);
+  
+  if (include_level == 0 && filename != last_readline_init_file)
+    {
+      FREE (last_readline_init_file);
+      last_readline_init_file = savestring (filename);
+    }
+
+  currently_reading_init_file = 1;
+
+  /* Loop over the lines in the file.  Lines that start with `#' are
+     comments; all other lines are commands for readline initialization. */
+  current_readline_init_lineno = 1;
+  line = buffer;
+  end = buffer + file_size;
+  while (line < end)
+    {
+      /* Find the end of this line. */
+      for (i = 0; line + i != end && line[i] != '\n'; i++);
+
+#if defined (__CYGWIN32__)
+      /* ``Be liberal in what you accept.'' */
+      if (line[i] == '\n' && line[i-1] == '\r')
+	line[i - 1] = '\0';
+#endif
+
+      /* Mark end of line. */
+      line[i] = '\0';
+
+      /* Skip leading whitespace. */
+      while (*line && whitespace (*line))
+        {
+	  line++;
+	  i--;
+        }
+
+      /* If the line is not a comment, then parse it. */
+      if (*line && *line != '#')
+	rl_parse_and_bind (line);
+
+      /* Move to the next line. */
+      line += i + 1;
+      current_readline_init_lineno++;
+    }
+
+  free (buffer);
+  currently_reading_init_file = 0;
+  return (0);
+}
+
+static void
+_rl_init_file_error (msg)
+     char *msg;
+{
+  if (currently_reading_init_file)
+    fprintf (stderr, "readline: %s: line %d: %s\n", current_readline_init_file,
+		     current_readline_init_lineno, msg);
+  else
+    fprintf (stderr, "readline: %s\n", msg);
+}
+
+/* **************************************************************** */
+/*								    */
+/*			Parser Directives       		    */
+/*								    */
+/* **************************************************************** */
+
+/* Conditionals. */
+
+/* Calling programs set this to have their argv[0]. */
+char *rl_readline_name = "other";
+
+/* Stack of previous values of parsing_conditionalized_out. */
+static unsigned char *if_stack = (unsigned char *)NULL;
+static int if_stack_depth;
+static int if_stack_size;
+
+/* Push _rl_parsing_conditionalized_out, and set parser state based
+   on ARGS. */
+static int
+parser_if (args)
+     char *args;
+{
+  register int i;
+
+  /* Push parser state. */
+  if (if_stack_depth + 1 >= if_stack_size)
+    {
+      if (!if_stack)
+	if_stack = (unsigned char *)xmalloc (if_stack_size = 20);
+      else
+	if_stack = (unsigned char *)xrealloc (if_stack, if_stack_size += 20);
+    }
+  if_stack[if_stack_depth++] = _rl_parsing_conditionalized_out;
+
+  /* If parsing is turned off, then nothing can turn it back on except
+     for finding the matching endif.  In that case, return right now. */
+  if (_rl_parsing_conditionalized_out)
+    return 0;
+
+  /* Isolate first argument. */
+  for (i = 0; args[i] && !whitespace (args[i]); i++);
+
+  if (args[i])
+    args[i++] = '\0';
+
+  /* Handle "$if term=foo" and "$if mode=emacs" constructs.  If this
+     isn't term=foo, or mode=emacs, then check to see if the first
+     word in ARGS is the same as the value stored in rl_readline_name. */
+  if (rl_terminal_name && _rl_strnicmp (args, "term=", 5) == 0)
+    {
+      char *tem, *tname;
+
+      /* Terminals like "aaa-60" are equivalent to "aaa". */
+      tname = savestring (rl_terminal_name);
+      tem = strchr (tname, '-');
+      if (tem)
+	*tem = '\0';
+
+      /* Test the `long' and `short' forms of the terminal name so that
+	 if someone has a `sun-cmd' and does not want to have bindings
+	 that will be executed if the terminal is a `sun', they can put
+	 `$if term=sun-cmd' into their .inputrc. */
+      _rl_parsing_conditionalized_out = _rl_stricmp (args + 5, tname) &&
+					_rl_stricmp (args + 5, rl_terminal_name);
+      free (tname);
+    }
+#if defined (VI_MODE)
+  else if (_rl_strnicmp (args, "mode=", 5) == 0)
+    {
+      int mode;
+
+      if (_rl_stricmp (args + 5, "emacs") == 0)
+	mode = emacs_mode;
+      else if (_rl_stricmp (args + 5, "vi") == 0)
+	mode = vi_mode;
+      else
+	mode = no_mode;
+
+      _rl_parsing_conditionalized_out = mode != rl_editing_mode;
+    }
+#endif /* VI_MODE */
+  /* Check to see if the first word in ARGS is the same as the
+     value stored in rl_readline_name. */
+  else if (_rl_stricmp (args, rl_readline_name) == 0)
+    _rl_parsing_conditionalized_out = 0;
+  else
+    _rl_parsing_conditionalized_out = 1;
+  return 0;
+}
+
+/* Invert the current parser state if there is anything on the stack. */
+static int
+parser_else (args)
+     char *args;
+{
+  register int i;
+
+  if (if_stack_depth == 0)
+    {
+      _rl_init_file_error ("$else found without matching $if");
+      return 0;
+    }
+
+  /* Check the previous (n - 1) levels of the stack to make sure that
+     we haven't previously turned off parsing. */
+  for (i = 0; i < if_stack_depth - 1; i++)
+    if (if_stack[i] == 1)
+      return 0;
+
+  /* Invert the state of parsing if at top level. */
+  _rl_parsing_conditionalized_out = !_rl_parsing_conditionalized_out;
+  return 0;
+}
+
+/* Terminate a conditional, popping the value of
+   _rl_parsing_conditionalized_out from the stack. */
+static int
+parser_endif (args)
+     char *args;
+{
+  if (if_stack_depth)
+    _rl_parsing_conditionalized_out = if_stack[--if_stack_depth];
+  else
+    _rl_init_file_error ("$endif without matching $if");
+  return 0;
+}
+
+static int
+parser_include (args)
+     char *args;
+{
+  char *old_init_file, *e;
+  int old_line_number, old_include_level, r;
+
+  if (_rl_parsing_conditionalized_out)
+    return (0);
+
+  old_init_file = current_readline_init_file;
+  old_line_number = current_readline_init_lineno;
+  old_include_level = current_readline_init_include_level;
+
+  e = strchr (args, '\n');
+  if (e)
+    *e = '\0';
+  r = _rl_read_init_file (args, old_include_level + 1);
+
+  current_readline_init_file = old_init_file;
+  current_readline_init_lineno = old_line_number;
+  current_readline_init_include_level = old_include_level;
+
+  return r;
+}
+  
+/* Associate textual names with actual functions. */
+static struct {
+  char *name;
+  Function *function;
+} parser_directives [] = {
+  { "if", parser_if },
+  { "endif", parser_endif },
+  { "else", parser_else },
+  { "include", parser_include },
+  { (char *)0x0, (Function *)0x0 }
+};
+
+/* Handle a parser directive.  STATEMENT is the line of the directive
+   without any leading `$'. */
+static int
+handle_parser_directive (statement)
+     char *statement;
+{
+  register int i;
+  char *directive, *args;
+
+  /* Isolate the actual directive. */
+
+  /* Skip whitespace. */
+  for (i = 0; whitespace (statement[i]); i++);
+
+  directive = &statement[i];
+
+  for (; statement[i] && !whitespace (statement[i]); i++);
+
+  if (statement[i])
+    statement[i++] = '\0';
+
+  for (; statement[i] && whitespace (statement[i]); i++);
+
+  args = &statement[i];
+
+  /* Lookup the command, and act on it. */
+  for (i = 0; parser_directives[i].name; i++)
+    if (_rl_stricmp (directive, parser_directives[i].name) == 0)
+      {
+	(*parser_directives[i].function) (args);
+	return (0);
+      }
+
+  /* display an error message about the unknown parser directive */
+  _rl_init_file_error ("unknown parser directive");
+  return (1);
+}
+
+/* Read the binding command from STRING and perform it.
+   A key binding command looks like: Keyname: function-name\0,
+   a variable binding command looks like: set variable value.
+   A new-style keybinding looks like "\C-x\C-x": exchange-point-and-mark. */
+int
+rl_parse_and_bind (string)
+     char *string;
+{
+  char *funname, *kname;
+  register int c, i;
+  int key, equivalency;
+
+  while (string && whitespace (*string))
+    string++;
+
+  if (!string || !*string || *string == '#')
+    return 0;
+
+  /* If this is a parser directive, act on it. */
+  if (*string == '$')
+    {
+      handle_parser_directive (&string[1]);
+      return 0;
+    }
+
+  /* If we aren't supposed to be parsing right now, then we're done. */
+  if (_rl_parsing_conditionalized_out)
+    return 0;
+
+  i = 0;
+  /* If this keyname is a complex key expression surrounded by quotes,
+     advance to after the matching close quote.  This code allows the
+     backslash to quote characters in the key expression. */
+  if (*string == '"')
+    {
+      int passc = 0;
+
+      for (i = 1; c = string[i]; i++)
+	{
+	  if (passc)
+	    {
+	      passc = 0;
+	      continue;
+	    }
+
+	  if (c == '\\')
+	    {
+	      passc++;
+	      continue;
+	    }
+
+	  if (c == '"')
+	    break;
+	}
+      /* If we didn't find a closing quote, abort the line. */
+      if (string[i] == '\0')
+        {
+          _rl_init_file_error ("no closing `\"' in key binding");
+          return 1;
+        }
+    }
+
+  /* Advance to the colon (:) or whitespace which separates the two objects. */
+  for (; (c = string[i]) && c != ':' && c != ' ' && c != '\t'; i++ );
+
+  equivalency = (c == ':' && string[i + 1] == '=');
+
+  /* Mark the end of the command (or keyname). */
+  if (string[i])
+    string[i++] = '\0';
+
+  /* If doing assignment, skip the '=' sign as well. */
+  if (equivalency)
+    string[i++] = '\0';
+
+  /* If this is a command to set a variable, then do that. */
+  if (_rl_stricmp (string, "set") == 0)
+    {
+      char *var = string + i;
+      char *value;
+
+      /* Make VAR point to start of variable name. */
+      while (*var && whitespace (*var)) var++;
+
+      /* Make value point to start of value string. */
+      value = var;
+      while (*value && !whitespace (*value)) value++;
+      if (*value)
+	*value++ = '\0';
+      while (*value && whitespace (*value)) value++;
+
+      rl_variable_bind (var, value);
+      return 0;
+    }
+
+  /* Skip any whitespace between keyname and funname. */
+  for (; string[i] && whitespace (string[i]); i++);
+  funname = &string[i];
+
+  /* Now isolate funname.
+     For straight function names just look for whitespace, since
+     that will signify the end of the string.  But this could be a
+     macro definition.  In that case, the string is quoted, so skip
+     to the matching delimiter.  We allow the backslash to quote the
+     delimiter characters in the macro body. */
+  /* This code exists to allow whitespace in macro expansions, which
+     would otherwise be gobbled up by the next `for' loop.*/
+  /* XXX - it may be desirable to allow backslash quoting only if " is
+     the quoted string delimiter, like the shell. */
+  if (*funname == '\'' || *funname == '"')
+    {
+      int delimiter = string[i++], passc;
+
+      for (passc = 0; c = string[i]; i++)
+	{
+	  if (passc)
+	    {
+	      passc = 0;
+	      continue;
+	    }
+
+	  if (c == '\\')
+	    {
+	      passc = 1;
+	      continue;
+	    }
+
+	  if (c == delimiter)
+	    break;
+	}
+      if (c)
+	i++;
+    }
+
+  /* Advance to the end of the string.  */
+  for (; string[i] && !whitespace (string[i]); i++);
+
+  /* No extra whitespace at the end of the string. */
+  string[i] = '\0';
+
+  /* Handle equivalency bindings here.  Make the left-hand side be exactly
+     whatever the right-hand evaluates to, including keymaps. */
+  if (equivalency)
+    {
+      return 0;
+    }
+
+  /* If this is a new-style key-binding, then do the binding with
+     rl_set_key ().  Otherwise, let the older code deal with it. */
+  if (*string == '"')
+    {
+      char *seq;
+      register int j, k, passc;
+
+      seq = xmalloc (1 + strlen (string));
+      for (j = 1, k = passc = 0; string[j]; j++)
+	{
+	  /* Allow backslash to quote characters, but leave them in place.
+	     This allows a string to end with a backslash quoting another
+	     backslash, or with a backslash quoting a double quote.  The
+	     backslashes are left in place for rl_translate_keyseq (). */
+	  if (passc || (string[j] == '\\'))
+	    {
+	      seq[k++] = string[j];
+	      passc = !passc;
+	      continue;
+	    }
+
+	  if (string[j] == '"')
+	    break;
+
+	  seq[k++] = string[j];
+	}
+      seq[k] = '\0';
+
+      /* Binding macro? */
+      if (*funname == '\'' || *funname == '"')
+	{
+	  j = strlen (funname);
+
+	  /* Remove the delimiting quotes from each end of FUNNAME. */
+	  if (j && funname[j - 1] == *funname)
+	    funname[j - 1] = '\0';
+
+	  rl_macro_bind (seq, &funname[1], _rl_keymap);
+	}
+      else
+	rl_set_key (seq, rl_named_function (funname), _rl_keymap);
+
+      free (seq);
+      return 0;
+    }
+
+  /* Get the actual character we want to deal with. */
+  kname = strrchr (string, '-');
+  if (!kname)
+    kname = string;
+  else
+    kname++;
+
+  key = glean_key_from_name (kname);
+
+  /* Add in control and meta bits. */
+  if (substring_member_of_array (string, possible_control_prefixes))
+    key = CTRL (_rl_to_upper (key));
+
+  if (substring_member_of_array (string, possible_meta_prefixes))
+    key = META (key);
+
+  /* Temporary.  Handle old-style keyname with macro-binding. */
+  if (*funname == '\'' || *funname == '"')
+    {
+      unsigned char useq[2];
+      int fl = strlen (funname);
+
+      useq[0] = key; useq[1] = '\0';
+      if (fl && funname[fl - 1] == *funname)
+	funname[fl - 1] = '\0';
+
+      rl_macro_bind (useq, &funname[1], _rl_keymap);
+    }
+#if defined (PREFIX_META_HACK)
+  /* Ugly, but working hack to keep prefix-meta around. */
+  else if (_rl_stricmp (funname, "prefix-meta") == 0)
+    {
+      char seq[2];
+
+      seq[0] = key;
+      seq[1] = '\0';
+      rl_generic_bind (ISKMAP, seq, (char *)emacs_meta_keymap, _rl_keymap);
+    }
+#endif /* PREFIX_META_HACK */
+  else
+    rl_bind_key (key, rl_named_function (funname));
+  return 0;
+}
+
+/* Simple structure for boolean readline variables (i.e., those that can
+   have one of two values; either "On" or 1 for truth, or "Off" or 0 for
+   false. */
+
+#define V_SPECIAL	0x1
+
+static struct {
+  char *name;
+  int *value;
+  int flags;
+} boolean_varlist [] = {
+  { "blink-matching-paren",	&rl_blink_matching_paren,	V_SPECIAL },
+  { "completion-ignore-case",	&_rl_completion_case_fold,	0 },
+  { "convert-meta",		&_rl_convert_meta_chars_to_ascii, 0 },
+  { "disable-completion",	&rl_inhibit_completion,		0 },
+  { "enable-keypad",		&_rl_enable_keypad,		0 },
+  { "expand-tilde",		&rl_complete_with_tilde_expansion, 0 },
+  { "horizontal-scroll-mode",	&_rl_horizontal_scroll_mode,	0 },
+  { "input-meta",		&_rl_meta_flag,			0 },
+  { "mark-directories",		&_rl_complete_mark_directories,	0 },
+  { "mark-modified-lines",	&_rl_mark_modified_lines,	0 },
+  { "meta-flag",		&_rl_meta_flag,			0 },
+  { "output-meta",		&_rl_output_meta_chars,		0 },
+  { "prefer-visible-bell",	&_rl_prefer_visible_bell,	V_SPECIAL },
+  { "print-completions-horizontally", &_rl_print_completions_horizontally, 0 },
+  { "show-all-if-ambiguous",	&_rl_complete_show_all,		0 },
+#if defined (VISIBLE_STATS)
+  { "visible-stats",		&rl_visible_stats,		0 },
+#endif /* VISIBLE_STATS */
+  { (char *)NULL, (int *)NULL }
+};
+
+static int
+find_boolean_var (name)
+     char *name;
+{
+  register int i;
+
+  for (i = 0; boolean_varlist[i].name; i++)
+    if (_rl_stricmp (name, boolean_varlist[i].name) == 0)
+      return i;
+  return -1;
+}
+
+/* Hooks for handling special boolean variables, where a
+   function needs to be called or another variable needs
+   to be changed when they're changed. */
+static void
+hack_special_boolean_var (i)
+     int i;
+{
+  char *name;
+
+  name = boolean_varlist[i].name;
+
+  if (_rl_stricmp (name, "blink-matching-paren") == 0)
+    _rl_enable_paren_matching (rl_blink_matching_paren);
+  else if (_rl_stricmp (name, "prefer-visible-bell") == 0)
+    {
+      if (_rl_prefer_visible_bell)
+	_rl_bell_preference = VISIBLE_BELL;
+      else
+	_rl_bell_preference = AUDIBLE_BELL;
+    }
+}
+
+/* These *must* correspond to the array indices for the appropriate
+   string variable.  (Though they're not used right now.) */
+#define V_BELLSTYLE	0
+#define V_COMBEGIN	1
+#define V_EDITMODE	2
+#define V_ISRCHTERM	3
+#define V_KEYMAP	4
+
+#define	V_STRING	1
+#define V_INT		2
+
+/* Forward declarations */
+static int sv_bell_style __P((char *));
+static int sv_combegin __P((char *));
+static int sv_compquery __P((char *));
+static int sv_editmode __P((char *));
+static int sv_isrchterm __P((char *));
+static int sv_keymap __P((char *));
+
+static struct {
+  char *name;
+  int flags;
+  Function *set_func;
+} string_varlist[] = {
+  { "bell-style",	V_STRING,	sv_bell_style },
+  { "comment-begin",	V_STRING,	sv_combegin },
+  { "completion-query-items", V_INT,	sv_compquery },
+  { "editing-mode",	V_STRING,	sv_editmode },
+  { "isearch-terminators", V_STRING,	sv_isrchterm },
+  { "keymap",		V_STRING,	sv_keymap },
+  { (char *)NULL,	0 }
+};
+
+static int
+find_string_var (name)
+     char *name;
+{
+  register int i;
+
+  for (i = 0; string_varlist[i].name; i++)
+    if (_rl_stricmp (name, string_varlist[i].name) == 0)
+      return i;
+  return -1;
+}
+
+/* A boolean value that can appear in a `set variable' command is true if
+   the value is null or empty, `on' (case-insenstive), or "1".  Any other
+   values result in 0 (false). */
+static int
+bool_to_int (value)
+     char *value;
+{
+  return (value == 0 || *value == '\0' ||
+		(_rl_stricmp (value, "on") == 0) ||
+		(value[0] == '1' && value[1] == '\0'));
+}
+
+int
+rl_variable_bind (name, value)
+     char *name, *value;
+{
+  register int i;
+  int	v;
+
+  /* Check for simple variables first. */
+  i = find_boolean_var (name);
+  if (i >= 0)
+    {
+      *boolean_varlist[i].value = bool_to_int (value);
+      if (boolean_varlist[i].flags & V_SPECIAL)
+	hack_special_boolean_var (i);
+      return 0;
+    }
+
+  i = find_string_var (name);
+
+  /* For the time being, unknown variable names or string names without a
+     handler function are simply ignored. */
+  if (i < 0 || string_varlist[i].set_func == 0)
+    return 0;
+
+  v = (*string_varlist[i].set_func) (value);
+  return v;
+}
+
+static int
+sv_editmode (value)
+     char *value;
+{
+  if (_rl_strnicmp (value, "vi", 2) == 0)
+    {
+#if defined (VI_MODE)
+      _rl_keymap = vi_insertion_keymap;
+      rl_editing_mode = vi_mode;
+#endif /* VI_MODE */
+      return 0;
+    }
+  else if (_rl_strnicmp (value, "emacs", 5) == 0)
+    {
+      _rl_keymap = emacs_standard_keymap;
+      rl_editing_mode = emacs_mode;
+      return 0;
+    }
+  return 1;
+}
+
+static int
+sv_combegin (value)
+     char *value;
+{
+  if (value && *value)
+    {
+      FREE (_rl_comment_begin);
+      _rl_comment_begin = savestring (value);
+      return 0;
+    }
+  return 1;
+}
+
+static int
+sv_compquery (value)
+     char *value;
+{
+  int nval = 100;
+
+  if (value && *value)
+    {
+      nval = atoi (value);
+      if (nval < 0)
+	nval = 0;
+    }
+  rl_completion_query_items = nval;
+  return 0;
+}
+
+static int
+sv_keymap (value)
+     char *value;
+{
+  Keymap kmap;
+
+  kmap = rl_get_keymap_by_name (value);
+  if (kmap)
+    {
+      rl_set_keymap (kmap);
+      return 0;
+    }
+  return 1;
+}
+
+#define _SET_BELL(v)	do { _rl_bell_preference = v; return 0; } while (0)
+
+static int
+sv_bell_style (value)
+     char *value;
+{
+  if (value == 0 || *value == '\0')
+    _SET_BELL (AUDIBLE_BELL);
+  else if (_rl_stricmp (value, "none") == 0 || _rl_stricmp (value, "off") == 0)
+    _SET_BELL (NO_BELL);
+  else if (_rl_stricmp (value, "audible") == 0 || _rl_stricmp (value, "on") == 0)
+    _SET_BELL (AUDIBLE_BELL);
+  else if (_rl_stricmp (value, "visible") == 0)
+    _SET_BELL (VISIBLE_BELL);
+  else
+    return 1;
+}
+#undef _SET_BELL
+
+static int
+sv_isrchterm (value)
+     char *value;
+{
+  int beg, end, delim;
+  char *v;
+
+  if (value == 0)
+    return 1;
+
+  /* Isolate the value and translate it into a character string. */
+  v = savestring (value);
+  FREE (_rl_isearch_terminators);
+  if (v[0] == '"' || v[0] == '\'')
+    {
+      delim = v[0];
+      for (beg = end = 1; v[end] && v[end] != delim; end++)
+	;
+    }
+  else
+    {
+      for (beg = end = 0; whitespace (v[end]) == 0; end++)
+	;
+    }
+
+  v[end] = '\0';
+
+  /* The value starts at v + beg.  Translate it into a character string. */
+  _rl_isearch_terminators = (unsigned char *)xmalloc (2 * strlen (v) + 1);
+  rl_translate_keyseq (v + beg, _rl_isearch_terminators, &end);
+  _rl_isearch_terminators[end] = '\0';
+
+  free (v);
+  return 0;
+}
+      
+/* Return the character which matches NAME.
+   For example, `Space' returns ' '. */
+
+typedef struct {
+  char *name;
+  int value;
+} assoc_list;
+
+static assoc_list name_key_alist[] = {
+  { "DEL", 0x7f },
+  { "ESC", '\033' },
+  { "Escape", '\033' },
+  { "LFD", '\n' },
+  { "Newline", '\n' },
+  { "RET", '\r' },
+  { "Return", '\r' },
+  { "Rubout", 0x7f },
+  { "SPC", ' ' },
+  { "Space", ' ' },
+  { "Tab", 0x09 },
+  { (char *)0x0, 0 }
+};
+
+static int
+glean_key_from_name (name)
+     char *name;
+{
+  register int i;
+
+  for (i = 0; name_key_alist[i].name; i++)
+    if (_rl_stricmp (name, name_key_alist[i].name) == 0)
+      return (name_key_alist[i].value);
+
+  return (*(unsigned char *)name);	/* XXX was return (*name) */
+}
+
+/* Auxiliary functions to manage keymaps. */
+static struct {
+  char *name;
+  Keymap map;
+} keymap_names[] = {
+  { "emacs", emacs_standard_keymap },
+  { "emacs-standard", emacs_standard_keymap },
+  { "emacs-meta", emacs_meta_keymap },
+  { "emacs-ctlx", emacs_ctlx_keymap },
+#if defined (VI_MODE)
+  { "vi", vi_movement_keymap },
+  { "vi-move", vi_movement_keymap },
+  { "vi-command", vi_movement_keymap },
+  { "vi-insert", vi_insertion_keymap },
+#endif /* VI_MODE */
+  { (char *)0x0, (Keymap)0x0 }
+};
+
+Keymap
+rl_get_keymap_by_name (name)
+     char *name;
+{
+  register int i;
+
+  for (i = 0; keymap_names[i].name; i++)
+    if (strcmp (name, keymap_names[i].name) == 0)
+      return (keymap_names[i].map);
+  return ((Keymap) NULL);
+}
+
+char *
+rl_get_keymap_name (map)
+     Keymap map;
+{
+  register int i;
+  for (i = 0; keymap_names[i].name; i++)
+    if (map == keymap_names[i].map)
+      return (keymap_names[i].name);
+  return ((char *)NULL);
+}
+  
+void
+rl_set_keymap (map)
+     Keymap map;
+{
+  if (map)
+    _rl_keymap = map;
+}
+
+Keymap
+rl_get_keymap ()
+{
+  return (_rl_keymap);
+}
+
+void
+rl_set_keymap_from_edit_mode ()
+{
+  if (rl_editing_mode == emacs_mode)
+    _rl_keymap = emacs_standard_keymap;
+#if defined (VI_MODE)
+  else if (rl_editing_mode == vi_mode)
+    _rl_keymap = vi_insertion_keymap;
+#endif /* VI_MODE */
+}
+
+char *
+rl_get_keymap_name_from_edit_mode ()
+{
+  if (rl_editing_mode == emacs_mode)
+    return "emacs";
+#if defined (VI_MODE)
+  else if (rl_editing_mode == vi_mode)
+    return "vi";
+#endif /* VI_MODE */
+  else
+    return "none";
+}
+
+/* **************************************************************** */
+/*								    */
+/*		  Key Binding and Function Information		    */
+/*								    */
+/* **************************************************************** */
+
+/* Each of the following functions produces information about the
+   state of keybindings and functions known to Readline.  The info
+   is always printed to rl_outstream, and in such a way that it can
+   be read back in (i.e., passed to rl_parse_and_bind (). */
+
+/* Print the names of functions known to Readline. */
+void
+rl_list_funmap_names ()
+{
+  register int i;
+  char **funmap_names;
+
+  funmap_names = rl_funmap_names ();
+
+  if (!funmap_names)
+    return;
+
+  for (i = 0; funmap_names[i]; i++)
+    fprintf (rl_outstream, "%s\n", funmap_names[i]);
+
+  free (funmap_names);
+}
+
+static char *
+_rl_get_keyname (key)
+     int key;
+{
+  char *keyname;
+  int i, c;
+
+  keyname = (char *)xmalloc (8);
+
+  c = key;
+  /* Since this is going to be used to write out keysequence-function
+     pairs for possible inclusion in an inputrc file, we don't want to
+     do any special meta processing on KEY. */
+
+#if 0
+  /* We might want to do this, but the old version of the code did not. */
+
+  /* If this is an escape character, we don't want to do any more processing.
+     Just add the special ESC key sequence and return. */
+  if (c == ESC)
+    {
+      keyseq[0] = '\\';
+      keyseq[1] = 'e';
+      keyseq[2] = '\0';
+      return keyseq;
+    }
+#endif
+
+  /* RUBOUT is translated directly into \C-? */
+  if (key == RUBOUT)
+    {
+      keyname[0] = '\\';
+      keyname[1] = 'C';
+      keyname[2] = '-';
+      keyname[3] = '?';
+      keyname[4] = '\0';
+      return keyname;
+    }
+
+  i = 0;
+  /* Now add special prefixes needed for control characters.  This can
+     potentially change C. */
+  if (CTRL_CHAR (c))
+    {
+      keyname[i++] = '\\';
+      keyname[i++] = 'C';
+      keyname[i++] = '-';
+      c = _rl_to_lower (UNCTRL (c));
+    }
+
+  /* XXX experimental code.  Turn the characters that are not ASCII or
+     ISO Latin 1 (128 - 159) into octal escape sequences (\200 - \237).
+     This changes C. */
+  if (c >= 128 && c <= 159)
+    {
+      keyname[i++] = '\\';
+      keyname[i++] = '2';
+      c -= 128;
+      keyname[i++] = (c / 8) + '0';
+      c = (c % 8) + '0';
+    }
+
+  /* Now, if the character needs to be quoted with a backslash, do that. */
+  if (c == '\\' || c == '"')
+    keyname[i++] = '\\';
+
+  /* Now add the key, terminate the string, and return it. */
+  keyname[i++] = (char) c;
+  keyname[i] = '\0';
+
+  return keyname;
+}
+
+/* Return a NULL terminated array of strings which represent the key
+   sequences that are used to invoke FUNCTION in MAP. */
+char **
+rl_invoking_keyseqs_in_map (function, map)
+     Function *function;
+     Keymap map;
+{
+  register int key;
+  char **result;
+  int result_index, result_size;
+
+  result = (char **)NULL;
+  result_index = result_size = 0;
+
+  for (key = 0; key < KEYMAP_SIZE; key++)
+    {
+      switch (map[key].type)
+	{
+	case ISMACR:
+	  /* Macros match, if, and only if, the pointers are identical.
+	     Thus, they are treated exactly like functions in here. */
+	case ISFUNC:
+	  /* If the function in the keymap is the one we are looking for,
+	     then add the current KEY to the list of invoking keys. */
+	  if (map[key].function == function)
+	    {
+	      char *keyname;
+
+	      keyname = _rl_get_keyname (key);
+
+	      if (result_index + 2 > result_size)
+	        {
+	          result_size += 10;
+		  result = (char **) xrealloc (result, result_size * sizeof (char *));
+	        }
+
+	      result[result_index++] = keyname;
+	      result[result_index] = (char *)NULL;
+	    }
+	  break;
+
+	case ISKMAP:
+	  {
+	    char **seqs;
+	    register int i;
+
+	    /* Find the list of keyseqs in this map which have FUNCTION as
+	       their target.  Add the key sequences found to RESULT. */
+	    if (map[key].function)
+	      seqs =
+	        rl_invoking_keyseqs_in_map (function, FUNCTION_TO_KEYMAP (map, key));
+	    else
+	      break;
+
+	    if (seqs == 0)
+	      break;
+
+	    for (i = 0; seqs[i]; i++)
+	      {
+		char *keyname = (char *)xmalloc (6 + strlen (seqs[i]));
+
+		if (key == ESC)
+		  sprintf (keyname, "\\e");
+		else if (CTRL_CHAR (key))
+		  sprintf (keyname, "\\C-%c", _rl_to_lower (UNCTRL (key)));
+		else if (key == RUBOUT)
+		  sprintf (keyname, "\\C-?");
+		else if (key == '\\' || key == '"')
+		  {
+		    keyname[0] = '\\';
+		    keyname[1] = (char) key;
+		    keyname[2] = '\0';
+		  }
+		else
+		  {
+		    keyname[0] = (char) key;
+		    keyname[1] = '\0';
+		  }
+		
+		strcat (keyname, seqs[i]);
+		free (seqs[i]);
+
+		if (result_index + 2 > result_size)
+		  {
+		    result_size += 10;
+		    result = (char **) xrealloc (result, result_size * sizeof (char *));
+		  }
+
+		result[result_index++] = keyname;
+		result[result_index] = (char *)NULL;
+	      }
+
+	    free (seqs);
+	  }
+	  break;
+	}
+    }
+  return (result);
+}
+
+/* Return a NULL terminated array of strings which represent the key
+   sequences that can be used to invoke FUNCTION using the current keymap. */
+char **
+rl_invoking_keyseqs (function)
+     Function *function;
+{
+  return (rl_invoking_keyseqs_in_map (function, _rl_keymap));
+}
+
+/* Print all of the functions and their bindings to rl_outstream.  If
+   PRINT_READABLY is non-zero, then print the output in such a way
+   that it can be read back in. */
+void
+rl_function_dumper (print_readably)
+     int print_readably;
+{
+  register int i;
+  char **names;
+  char *name;
+
+  names = rl_funmap_names ();
+
+  fprintf (rl_outstream, "\n");
+
+  for (i = 0; name = names[i]; i++)
+    {
+      Function *function;
+      char **invokers;
+
+      function = rl_named_function (name);
+      invokers = rl_invoking_keyseqs_in_map (function, _rl_keymap);
+
+      if (print_readably)
+	{
+	  if (!invokers)
+	    fprintf (rl_outstream, "# %s (not bound)\n", name);
+	  else
+	    {
+	      register int j;
+
+	      for (j = 0; invokers[j]; j++)
+		{
+		  fprintf (rl_outstream, "\"%s\": %s\n",
+			   invokers[j], name);
+		  free (invokers[j]);
+		}
+
+	      free (invokers);
+	    }
+	}
+      else
+	{
+	  if (!invokers)
+	    fprintf (rl_outstream, "%s is not bound to any keys\n",
+		     name);
+	  else
+	    {
+	      register int j;
+
+	      fprintf (rl_outstream, "%s can be found on ", name);
+
+	      for (j = 0; invokers[j] && j < 5; j++)
+		{
+		  fprintf (rl_outstream, "\"%s\"%s", invokers[j],
+			   invokers[j + 1] ? ", " : ".\n");
+		}
+
+	      if (j == 5 && invokers[j])
+		fprintf (rl_outstream, "...\n");
+
+	      for (j = 0; invokers[j]; j++)
+		free (invokers[j]);
+
+	      free (invokers);
+	    }
+	}
+    }
+}
+
+/* Print all of the current functions and their bindings to
+   rl_outstream.  If an explicit argument is given, then print
+   the output in such a way that it can be read back in. */
+int
+rl_dump_functions (count, key)
+     int count, key;
+{
+  if (rl_dispatching)
+    fprintf (rl_outstream, "\r\n");
+  rl_function_dumper (rl_explicit_arg);
+  rl_on_new_line ();
+  return (0);
+}
+
+static void
+_rl_macro_dumper_internal (print_readably, map, prefix)
+     int print_readably;
+     Keymap map;
+     char *prefix;
+{
+  register int key;
+  char *keyname, *out;
+  int prefix_len;
+
+  for (key = 0; key < KEYMAP_SIZE; key++)
+    {
+      switch (map[key].type)
+	{
+	case ISMACR:
+	  keyname = _rl_get_keyname (key);
+#if 0
+	  out = (char *)map[key].function;
+#else
+	  out = _rl_untranslate_macro_value ((char *)map[key].function);
+#endif
+	  if (print_readably)
+	    fprintf (rl_outstream, "\"%s%s\": \"%s\"\n", prefix ? prefix : "",
+						         keyname,
+						         out ? out : "");
+	  else
+	    fprintf (rl_outstream, "%s%s outputs %s\n", prefix ? prefix : "",
+							keyname,
+							out ? out : "");
+	  free (keyname);
+#if 1
+	  free (out);
+#endif
+	  break;
+	case ISFUNC:
+	  break;
+	case ISKMAP:
+	  prefix_len = prefix ? strlen (prefix) : 0;
+	  if (key == ESC)
+	    {
+	      keyname = xmalloc (3 + prefix_len);
+	      if (prefix)
+		strcpy (keyname, prefix);
+	      keyname[prefix_len] = '\\';
+	      keyname[prefix_len + 1] = 'e';
+	      keyname[prefix_len + 2] = '\0';
+	    }
+	  else
+	    {
+	      keyname = _rl_get_keyname (key);
+	      if (prefix)
+		{
+		  out = xmalloc (strlen (keyname) + prefix_len + 1);
+		  strcpy (out, prefix);
+		  strcpy (out + prefix_len, keyname);
+		  free (keyname);
+		  keyname = out;
+		}
+	    }
+
+	  _rl_macro_dumper_internal (print_readably, FUNCTION_TO_KEYMAP (map, key), keyname);
+	  free (keyname);
+	  break;
+	}
+    }
+}
+
+void
+rl_macro_dumper (print_readably)
+     int print_readably;
+{
+  _rl_macro_dumper_internal (print_readably, _rl_keymap, (char *)NULL);
+}
+
+int
+rl_dump_macros (count, key)
+     int count, key;
+{
+  if (rl_dispatching)
+    fprintf (rl_outstream, "\r\n");
+  rl_macro_dumper (rl_explicit_arg);
+  rl_on_new_line ();
+  return (0);
+}
+
+void
+rl_variable_dumper (print_readably)
+     int print_readably;
+{
+  int i;
+  char *kname;
+
+  for (i = 0; boolean_varlist[i].name; i++)
+    {
+      if (print_readably)
+        fprintf (rl_outstream, "set %s %s\n", boolean_varlist[i].name,
+			       *boolean_varlist[i].value ? "on" : "off");
+      else
+        fprintf (rl_outstream, "%s is set to `%s'\n", boolean_varlist[i].name,
+			       *boolean_varlist[i].value ? "on" : "off");
+    }
+
+  /* bell-style */
+  switch (_rl_bell_preference)
+    {
+    case NO_BELL:
+      kname = "none"; break;
+    case VISIBLE_BELL:
+      kname = "visible"; break;
+    case AUDIBLE_BELL:
+    default:
+      kname = "audible"; break;
+    }
+  if (print_readably)
+    fprintf (rl_outstream, "set bell-style %s\n", kname);
+  else
+    fprintf (rl_outstream, "bell-style is set to `%s'\n", kname);
+
+  /* comment-begin */
+  if (print_readably)
+    fprintf (rl_outstream, "set comment-begin %s\n", _rl_comment_begin ? _rl_comment_begin : RL_COMMENT_BEGIN_DEFAULT);
+  else
+    fprintf (rl_outstream, "comment-begin is set to `%s'\n", _rl_comment_begin ? _rl_comment_begin : "");
+
+  /* completion-query-items */
+  if (print_readably)
+    fprintf (rl_outstream, "set completion-query-items %d\n", rl_completion_query_items);
+  else
+    fprintf (rl_outstream, "completion-query-items is set to `%d'\n", rl_completion_query_items);
+
+  /* editing-mode */
+  if (print_readably)
+    fprintf (rl_outstream, "set editing-mode %s\n", (rl_editing_mode == emacs_mode) ? "emacs" : "vi");
+  else
+    fprintf (rl_outstream, "editing-mode is set to `%s'\n", (rl_editing_mode == emacs_mode) ? "emacs" : "vi");
+
+  /* keymap */
+  kname = rl_get_keymap_name (_rl_keymap);
+  if (kname == 0)
+    kname = rl_get_keymap_name_from_edit_mode ();
+  if (print_readably)
+    fprintf (rl_outstream, "set keymap %s\n", kname ? kname : "none");
+  else
+    fprintf (rl_outstream, "keymap is set to `%s'\n", kname ? kname : "none");
+
+  /* isearch-terminators */
+  if (_rl_isearch_terminators)
+    {
+      char *disp;
+
+      disp = _rl_untranslate_macro_value (_rl_isearch_terminators);
+
+      if (print_readably)
+	fprintf (rl_outstream, "set isearch-terminators \"%s\"\n", disp);
+      else
+	fprintf (rl_outstream, "isearch-terminators is set to \"%s\"\n", disp);
+
+      free (disp);
+    }
+}
+
+/* Print all of the current variables and their values to
+   rl_outstream.  If an explicit argument is given, then print
+   the output in such a way that it can be read back in. */
+int
+rl_dump_variables (count, key)
+     int count, key;
+{
+  if (rl_dispatching)
+    fprintf (rl_outstream, "\r\n");
+  rl_variable_dumper (rl_explicit_arg);
+  rl_on_new_line ();
+  return (0);
+}
+
+/* Bind key sequence KEYSEQ to DEFAULT_FUNC if KEYSEQ is unbound. */
+void
+_rl_bind_if_unbound (keyseq, default_func)
+     char *keyseq;
+     Function *default_func;
+{
+  Function *func;
+
+  if (keyseq)
+    {
+      func = rl_function_of_keyseq (keyseq, _rl_keymap, (int *)NULL);
+      if (!func || func == rl_do_lowercase_version)
+	rl_set_key (keyseq, default_func, _rl_keymap);
+    }
+}
+
+/* Return non-zero if any members of ARRAY are a substring in STRING. */
+static int
+substring_member_of_array (string, array)
+     char *string, **array;
+{
+  while (*array)
+    {
+      if (_rl_strindex (string, *array))
+	return (1);
+      array++;
+    }
+  return (0);
+}