* Copyright (c) 1992, 1993

/* $NetBSD: el.h,v 1.48 2025/01/03 00:40:08 rillig 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.
*
* @(#)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 "histedit.h"
#include "chartype.h"

#define EL_BUFSIZ ((size_t)1024) /* Maximum line size */

#define HANDLE_SIGNALS 0x001
#define NO_TTY 0x002
#define EDIT_DISABLED 0x004
#define UNBUFFERED 0x008
#define NARROW_HISTORY 0x040
#define NO_RESET 0x080
#define FIXIO 0x100
#define FROM_ELLINE 0x200

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 {
wchar_t *buffer; /* Input line */
wchar_t *cursor; /* Cursor position */
wchar_t *lastchar; /* Last character */
const wchar_t *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_action_t thiscmd; /* this command */
wchar_t thisch; /* char that generated it */
} el_state_t;

/*
* Until we come up with something better...
*/
#define el_malloc(a) malloc(a)
#define el_calloc(a,b) calloc(a, b)
#define el_realloc(a,b) realloc(a, b)
#define el_free(a) free(a)

#include "tty.h"
#include "prompt.h"
#include "literal.h"
#include "keymacro.h"
#include "terminal.h"
#include "refresh.h"
#include "chared.h"
#include "search.h"
#include "hist.h"
#include "map.h"
#include "sig.h"

struct el_read_t;

struct editline {
wchar_t *el_prog; /* the program name */
FILE *el_infile; /* Stdio stuff */
FILE *el_outfile; /* Stdio stuff */
FILE *el_errfile; /* Stdio stuff */
int el_infd; /* Input file descriptor */
int el_outfd; /* Output file descriptor */
int el_errfd; /* Error file descriptor */
int el_flags; /* Various flags. */
coord_t el_cursor; /* Cursor location */
wint_t **el_display; /* Real screen image = what is there */
wint_t **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_terminal_t el_terminal; /* 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_literal_t el_literal; /* prompt literal bits */
el_chared_t el_chared; /* Characted editor stuff */
el_map_t el_map; /* Key mapping stuff */
el_keymacro_t el_keymacro; /* 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 */
struct el_read_t *el_read; /* Character reading stuff */
ct_buffer_t el_visual; /* Buffer for displayable str */
ct_buffer_t el_scratch; /* Scratch conversion buffer */
ct_buffer_t el_lgcyconv; /* Buffer for legacy wrappers */
LineInfo el_lgcylinfo; /* Legacy LineInfo buffer */
};

libedit_private int el_editmode(EditLine *, int, const wchar_t **);
libedit_private EditLine *el_init_internal(const char *, FILE *, FILE *,
FILE *, int, int, int, int);

#ifdef DEBUG
#define EL_ABORT(a) do { \
fprintf(el->el_errfile, "%s, %d: ", \
__FILE__, __LINE__); \
fprintf a; \
abort(); \
} while (0)
#else
#define EL_ABORT(a) abort()
#endif
#endif /* _h_el */