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/* keymaps.h -- Manipulation of readline keymaps. */

/* 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 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. */

#ifndef _KEYMAPS_H_

#define _KEYMAPS_H_

#if defined (READLINE_LIBRARY)

#  include "rlstdc.h"

#  include "chardefs.h"

#else

#  include <readline/rlstdc.h>

#  include <readline/chardefs.h>

#endif

#if !defined (_FUNCTION_DEF)

#  define _FUNCTION_DEF

typedef int Function ();

typedef void VFunction ();

typedef char *CPFunction ();

typedef char **CPPFunction ();

#endif

/* A keymap contains one entry for each key in the ASCII set.

   Each entry consists of a type and a pointer.

   FUNCTION is the address of a function to run, or the

   address of a keymap to indirect through.

   TYPE says which kind of thing FUNCTION is. */

typedef struct _keymap_entry {

  char type;

  Function *function;

} KEYMAP_ENTRY;

/* This must be large enough to hold bindings for all of the characters

   in a desired character set (e.g, 128 for ASCII, 256 for ISO Latin-x,

   and so on). */

#define KEYMAP_SIZE 256

/* I wanted to make the above structure contain a union of:

   union { Function *function; struct _keymap_entry *keymap; } value;

   but this made it impossible for me to create a static array.

   Maybe I need C lessons. */

typedef KEYMAP_ENTRY KEYMAP_ENTRY_ARRAY[KEYMAP_SIZE];

typedef KEYMAP_ENTRY *Keymap;

/* The values that TYPE can have in a keymap entry. */

#define ISFUNC 0

#define ISKMAP 1

#define ISMACR 2

extern KEYMAP_ENTRY_ARRAY emacs_standard_keymap, emacs_meta_keymap, emacs_ctlx_keymap;

extern KEYMAP_ENTRY_ARRAY vi_insertion_keymap, vi_movement_keymap;

/* Return a new, empty keymap.

   Free it with free() when you are done. */

extern Keymap rl_make_bare_keymap __P((void));

/* Return a new keymap which is a copy of MAP. */

extern Keymap rl_copy_keymap __P((Keymap));

/* Return a new keymap with the printing characters bound to rl_insert,

   the lowercase Meta characters bound to run their equivalents, and

   the Meta digits bound to produce numeric arguments. */

extern Keymap rl_make_keymap __P((void));

/* Free the storage associated with a keymap. */

extern void rl_discard_keymap __P((Keymap));

/* These functions actually appear in bind.c */

/* Return the keymap corresponding to a given name.  Names look like

   `emacs' or `emacs-meta' or `vi-insert'.  */

extern Keymap rl_get_keymap_by_name __P((char *));

/* Return the current keymap. */

extern Keymap rl_get_keymap __P((void));

/* Set the current keymap to MAP. */

extern void rl_set_keymap __P((Keymap));

#endif /* _KEYMAPS_H_ */