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    /*	$NetBSD: el.h,v 1.11 2002/03/18 16:00:52 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.
     *
     *	@(#)el.h	8.1 (Berkeley) 6/4/93
     */
    
    /*
     * el.h: Internal structures.
     */
    #ifndef _h_el
    #define	_h_el
    /*
     * Local defaults
     */
    #define	KSHVI
    #define	VIDEFAULT
    #define	ANCHOR
    
    #include <stdio.h>
    #include <sys/types.h>
    
    #define	EL_BUFSIZ	1024		/* Maximum line size		*/
    
    #define	HANDLE_SIGNALS	1<<0
    #define	NO_TTY		1<<1
    #define	EDIT_DISABLED	1<<2
    
    typedef int bool_t;			/* True or not			*/
    
    typedef unsigned char el_action_t;	/* Index to command array	*/
    
    typedef struct coord_t {		/* Position on the screen	*/
    	int	h;
    	int	v;
    } coord_t;
    
    typedef struct el_line_t {
    	char	*buffer;		/* Input line			*/
    	char	*cursor;		/* Cursor position		*/
    	char	*lastchar;		/* Last character		*/
    	const char	*limit;			/* Max position			*/
    } el_line_t;
    
    /*
     * Editor state
     */
    typedef struct el_state_t {
    	int		inputmode;	/* What mode are we in?		*/
    	int		doingarg;	/* Are we getting an argument?	*/
    	int		argument;	/* Numeric argument		*/
    	int		metanext;	/* Is the next char a meta char */
    	el_action_t	lastcmd;	/* Previous command		*/
    } el_state_t;
    
    /*
     * Until we come up with something better...
     */
    #define	el_malloc(a)	malloc(a)
    #define	el_realloc(a,b)	realloc(a, b)
    #define	el_free(a)	free(a)
    
    #include "tty.h"
    #include "prompt.h"
    #include "key.h"
    #include "term.h"
    #include "refresh.h"
    #include "chared.h"
    #include "common.h"
    #include "search.h"
    #include "hist.h"
    #include "map.h"
    #include "parse.h"
    #include "sig.h"
    #include "help.h"
    #include "read.h"
    
    struct editline {
    	char		 *el_prog;	/* the program name		*/
    	FILE		 *el_outfile;	/* Stdio stuff			*/
    	FILE		 *el_errfile;	/* Stdio stuff			*/
    	int		  el_infd;	/* Input file descriptor	*/
    	int		  el_flags;	/* Various flags.		*/
    	coord_t		  el_cursor;	/* Cursor location		*/
    	char		**el_display;	/* Real screen image = what is there */
    	char		**el_vdisplay;	/* Virtual screen image = what we see */
    	void		 *el_data;	/* Client data			*/
    	el_line_t	  el_line;	/* The current line information	*/
    	el_state_t	  el_state;	/* Current editor state		*/
    	el_term_t	  el_term;	/* Terminal dependent stuff	*/
    	el_tty_t	  el_tty;	/* Tty dependent stuff		*/
    	el_refresh_t	  el_refresh;	/* Refresh stuff		*/
    	el_prompt_t	  el_prompt;	/* Prompt stuff			*/
    	el_prompt_t	  el_rprompt;	/* Prompt stuff			*/
    	el_chared_t	  el_chared;	/* Characted editor stuff	*/
    	el_map_t	  el_map;	/* Key mapping stuff		*/
    	el_key_t	  el_key;	/* Key binding stuff		*/
    	el_history_t	  el_history;	/* History stuff		*/
    	el_search_t	  el_search;	/* Search stuff			*/
    	el_signal_t	  el_signal;	/* Signal handling stuff	*/
    	el_read_t	  el_read;	/* Character reading stuff	*/
    };
    
    protected int	el_editmode(EditLine *, int, const char **);
    
    #ifdef DEBUG
    #define EL_ABORT(a)	(void) (fprintf(el->el_errfile, "%s, %d: ", \
    				__FILE__, __LINE__), fprintf a, abort())
    #else
    #define EL_ABORT(a)	abort()
    #endif
    #endif /* _h_el */