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Update to NetBSD libedit (from Oct 1, 2003), adding some string
cleaning and history bug fixes. The code includes GNU libreadline
functionality, but the corresponding header files are not installed,
since some libreadline functions are missing. There are some minor API
changes, notably:

old: EditLine *el_init(const char *, FILE *, FILE *);
new: EditLine *el_init(const char *, FILE *, FILE *, FILE *);

old: HistEvent *history(History *h, int op, ...);
new: int history(History *h, HistEvent *ev, int op, ...); plus some
changes in operation names. See editline(3) for details.

Tested by djm@, mouring@, jmc@.

ok deraadt@

/*	$OpenBSD: key.h,v 1.7 2003/10/31 08:42:24 otto Exp $	*/
/*	$NetBSD: key.h,v 1.8 2003/08/07 16:44:32 agc Exp $	*/

/*-
 * Copyright (c) 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Christos Zoulas of Cornell University.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *	@(#)key.h	8.1 (Berkeley) 6/4/93
 */

/*
 * el.key.h: Key macro header
 */
#ifndef _h_el_key
#define	_h_el_key

typedef union key_value_t {
	el_action_t	 cmd;	/* If it is a command the #	*/
	char		*str;	/* If it is a string...		*/
} key_value_t;

typedef struct key_node_t key_node_t;

typedef struct el_key_t {
	char		*buf;	/* Key print buffer		*/
	key_node_t	*map;	/* Key map			*/
	key_value_t	 val;	/* Local conversion buffer	*/
} el_key_t;

#define	XK_CMD	0
#define	XK_STR	1
#define	XK_NOD	2
#define	XK_EXE	3

#undef key_end
#undef key_clear
#undef key_print

protected int		 key_init(EditLine *);
protected void		 key_end(EditLine *);
protected key_value_t	*key_map_cmd(EditLine *, int);
protected key_value_t	*key_map_str(EditLine *, char *);
protected void		 key_reset(EditLine *);
protected int		 key_get(EditLine *, char *, key_value_t *);
protected void		 key_add(EditLine *, const char *, key_value_t *, int);
protected void		 key_clear(EditLine *, el_action_t *, const char *);
protected int		 key_delete(EditLine *, const char *);
protected void		 key_print(EditLine *, const char *);
protected void	         key_kprint(EditLine *, const char *, key_value_t *,
    int);
protected char		*key__decode_str(const char *, char *, const char *);

#endif /* _h_el_key */