1/*	$NetBSD: el.h,v 1.46 2021/08/15 10:08:41 christos Exp $	*/
2
3/*-
4 * Copyright (c) 1992, 1993
5 *	The Regents of the University of California.  All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Christos Zoulas of Cornell University.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 * 3. Neither the name of the University nor the names of its contributors
19 *    may be used to endorse or promote products derived from this software
20 *    without specific prior written permission.
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 *
34 *	@(#)el.h	8.1 (Berkeley) 6/4/93
35 */
36
37/*
38 * el.h: Internal structures.
39 */
40#ifndef _h_el
41#define	_h_el
42/*
43 * Local defaults
44 */
45#define	KSHVI
46#define	VIDEFAULT
47#define	ANCHOR
48
49#include "histedit.h"
50#include "chartype.h"
51
52#define	EL_BUFSIZ	((size_t)1024)	/* Maximum line size		*/
53
54#define	HANDLE_SIGNALS	0x001
55#define	NO_TTY		0x002
56#define	EDIT_DISABLED	0x004
57#define	UNBUFFERED	0x008
58#define	NARROW_HISTORY	0x040
59#define	NO_RESET	0x080
60#define	FIXIO		0x100
61
62typedef unsigned char el_action_t;	/* Index to command array	*/
63
64typedef struct coord_t {		/* Position on the screen	*/
65	int	h;
66	int	v;
67} coord_t;
68
69typedef struct el_line_t {
70	wchar_t		*buffer;	/* Input line			*/
71	wchar_t	        *cursor;	/* Cursor position		*/
72	wchar_t	        *lastchar;	/* Last character		*/
73	const wchar_t	*limit;		/* Max position			*/
74} el_line_t;
75
76/*
77 * Editor state
78 */
79typedef struct el_state_t {
80	int		inputmode;	/* What mode are we in?		*/
81	int		doingarg;	/* Are we getting an argument?	*/
82	int		argument;	/* Numeric argument		*/
83	int		metanext;	/* Is the next char a meta char */
84	el_action_t	lastcmd;	/* Previous command		*/
85	el_action_t	thiscmd;	/* this command			*/
86	wchar_t		thisch;		/* char that generated it	*/
87} el_state_t;
88
89/*
90 * Until we come up with something better...
91 */
92#define	el_malloc(a)	malloc(a)
93#define	el_calloc(a,b)	calloc(a, b)
94#define	el_realloc(a,b)	realloc(a, b)
95#define	el_free(a)	free(a)
96
97#include "tty.h"
98#include "prompt.h"
99#include "literal.h"
100#include "keymacro.h"
101#include "terminal.h"
102#include "refresh.h"
103#include "chared.h"
104#include "search.h"
105#include "hist.h"
106#include "map.h"
107#include "sig.h"
108
109struct el_read_t;
110
111struct editline {
112	wchar_t		 *el_prog;	/* the program name		*/
113	FILE		 *el_infile;	/* Stdio stuff			*/
114	FILE		 *el_outfile;	/* Stdio stuff			*/
115	FILE		 *el_errfile;	/* Stdio stuff			*/
116	int		  el_infd;	/* Input file descriptor	*/
117	int		  el_outfd;	/* Output file descriptor	*/
118	int		  el_errfd;	/* Error file descriptor	*/
119	int		  el_flags;	/* Various flags.		*/
120	coord_t		  el_cursor;	/* Cursor location		*/
121	wint_t		**el_display;	/* Real screen image = what is there */
122	wint_t		**el_vdisplay;	/* Virtual screen image = what we see */
123	void		 *el_data;	/* Client data			*/
124	el_line_t	  el_line;	/* The current line information	*/
125	el_state_t	  el_state;	/* Current editor state		*/
126	el_terminal_t	  el_terminal;	/* Terminal dependent stuff	*/
127	el_tty_t	  el_tty;	/* Tty dependent stuff		*/
128	el_refresh_t	  el_refresh;	/* Refresh stuff		*/
129	el_prompt_t	  el_prompt;	/* Prompt stuff			*/
130	el_prompt_t	  el_rprompt;	/* Prompt stuff			*/
131	el_literal_t	  el_literal;	/* prompt literal bits		*/
132	el_chared_t	  el_chared;	/* Characted editor stuff	*/
133	el_map_t	  el_map;	/* Key mapping stuff		*/
134	el_keymacro_t	  el_keymacro;	/* Key binding stuff		*/
135	el_history_t	  el_history;	/* History stuff		*/
136	el_search_t	  el_search;	/* Search stuff			*/
137	el_signal_t	  el_signal;	/* Signal handling stuff	*/
138	struct el_read_t *el_read;	/* Character reading stuff	*/
139	ct_buffer_t       el_visual;    /* Buffer for displayable str	*/
140	ct_buffer_t       el_scratch;   /* Scratch conversion buffer    */
141	ct_buffer_t       el_lgcyconv;  /* Buffer for legacy wrappers   */
142	LineInfo          el_lgcylinfo; /* Legacy LineInfo buffer       */
143};
144
145libedit_private int	el_editmode(EditLine *, int, const wchar_t **);
146libedit_private EditLine *el_init_internal(const char *, FILE *, FILE *,
147    FILE *, int, int, int, int);
148
149#ifdef DEBUG
150#define	EL_ABORT(a)	do { \
151				fprintf(el->el_errfile, "%s, %d: ", \
152					 __FILE__, __LINE__); \
153				fprintf a; \
154				abort(); \
155			} while( /*CONSTCOND*/0);
156#else
157#define EL_ABORT(a)	abort()
158#endif
159#endif /* _h_el */
160