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    /*	$NetBSD: chared.h,v 1.8 2002/03/18 16:00:51 christos 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. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *	This product includes software developed by the University of
     *	California, Berkeley and its contributors.
     * 4. 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.
     *
     *	@(#)chared.h	8.1 (Berkeley) 6/4/93
     */
    
    /*
     * el.chared.h: Character editor interface
     */
    #ifndef _h_el_chared
    #define	_h_el_chared
    
    #include <ctype.h>
    #include <string.h>
    
    #include "histedit.h"
    
    #define	EL_MAXMACRO	10
    
    /*
     * This is a issue of basic "vi" look-and-feel. Defining VI_MOVE works
     * like real vi: i.e. the transition from command<->insert modes moves
     * the cursor.
     *
     * On the other hand we really don't want to move the cursor, because
     * all the editing commands don't include the character under the cursor.
     * Probably the best fix is to make all the editing commands aware of
     * this fact.
     */
    #define	VI_MOVE
    
    
    typedef struct c_macro_t {
    	int	  level;
    	char	**macro;
    	char	 *nline;
    } c_macro_t;
    
    /*
     * Undo information for both vi and emacs
     */
    typedef struct c_undo_t {
    	int	 action;
    	size_t	 isize;
    	size_t	 dsize;
    	char	*ptr;
    	char	*buf;
    } c_undo_t;
    
    /*
     * Current action information for vi
     */
    typedef struct c_vcmd_t {
    	int	 action;
    	char	*pos;
    	char	*ins;
    } c_vcmd_t;
    
    /*
     * Kill buffer for emacs
     */
    typedef struct c_kill_t {
    	char	*buf;
    	char	*last;
    	char	*mark;
    } c_kill_t;
    
    /*
     * Note that we use both data structures because the user can bind
     * commands from both editors!
     */
    typedef struct el_chared_t {
    	c_undo_t	c_undo;
    	c_kill_t	c_kill;
    	c_vcmd_t	c_vcmd;
    	c_macro_t	c_macro;
    } el_chared_t;
    
    
    #define	STReof		"^D\b\b"
    #define	STRQQ		"\"\""
    
    #define	isglob(a)	(strchr("*[]?", (a)) != NULL)
    #define	isword(a)	(isprint(a))
    
    #define	NOP		0x00
    #define	DELETE		0x01
    #define	INSERT		0x02
    #define	CHANGE		0x04
    
    #define	CHAR_FWD	0
    #define	CHAR_BACK	1
    
    #define	MODE_INSERT	0
    #define	MODE_REPLACE	1
    #define	MODE_REPLACE_1	2
    
    #include "common.h"
    #include "vi.h"
    #include "emacs.h"
    #include "search.h"
    #include "fcns.h"
    
    
    protected int	 cv__isword(int);
    protected void	 cv_delfini(EditLine *);
    protected char	*cv__endword(char *, char *, int);
    protected int	 ce__isword(int);
    protected void	 cv_undo(EditLine *, int, size_t, char *);
    protected char	*cv_next_word(EditLine*, char *, char *, int, int (*)(int));
    protected char	*cv_prev_word(EditLine*, char *, char *, int, int (*)(int));
    protected char	*c__next_word(char *, char *, int, int (*)(int));
    protected char	*c__prev_word(char *, char *, int, int (*)(int));
    protected void	 c_insert(EditLine *, int);
    protected void	 c_delbefore(EditLine *, int);
    protected void	 c_delafter(EditLine *, int);
    protected int	 c_gets(EditLine *, char *);
    protected int	 c_hpos(EditLine *);
    
    protected int	 ch_init(EditLine *);
    protected void	 ch_reset(EditLine *);
    protected int	 ch_enlargebufs(EditLine *, size_t);
    protected void	 ch_end(EditLine *);
    
    #endif /* _h_el_chared */