1/*	$NetBSD: chared.h,v 1.30 2016/05/22 19:44:26 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 *	@(#)chared.h	8.1 (Berkeley) 6/4/93
35 */
36
37/*
38 * el.chared.h: Character editor interface
39 */
40#ifndef _h_el_chared
41#define	_h_el_chared
42
43/*
44 * This is an issue of basic "vi" look-and-feel. Defining VI_MOVE works
45 * like real vi: i.e. the transition from command<->insert modes moves
46 * the cursor.
47 *
48 * On the other hand we really don't want to move the cursor, because
49 * all the editing commands don't include the character under the cursor.
50 * Probably the best fix is to make all the editing commands aware of
51 * this fact.
52 */
53#define	VI_MOVE
54
55/*
56 * Undo information for vi - no undo in emacs (yet)
57 */
58typedef struct c_undo_t {
59	ssize_t	 len;			/* length of saved line */
60	int	 cursor;		/* position of saved cursor */
61	wchar_t	*buf;			/* full saved text */
62} c_undo_t;
63
64/* redo for vi */
65typedef struct c_redo_t {
66	wchar_t	*buf;			/* redo insert key sequence */
67	wchar_t	*pos;
68	wchar_t	*lim;
69	el_action_t	cmd;		/* command to redo */
70	wchar_t	ch;			/* char that invoked it */
71	int	count;
72	int	action;			/* from cv_action() */
73} c_redo_t;
74
75/*
76 * Current action information for vi
77 */
78typedef struct c_vcmd_t {
79	int	 action;
80	wchar_t	*pos;
81} c_vcmd_t;
82
83/*
84 * Kill buffer for emacs
85 */
86typedef struct c_kill_t {
87	wchar_t	*buf;
88	wchar_t	*last;
89	wchar_t	*mark;
90} c_kill_t;
91
92typedef void (*el_zfunc_t)(EditLine *, void *);
93typedef const char *(*el_afunc_t)(void *, const char *);
94
95/*
96 * Note that we use both data structures because the user can bind
97 * commands from both editors!
98 */
99typedef struct el_chared_t {
100	c_undo_t	c_undo;
101	c_kill_t	c_kill;
102	c_redo_t	c_redo;
103	c_vcmd_t	c_vcmd;
104	el_zfunc_t	c_resizefun;
105	el_afunc_t	c_aliasfun;
106	void *		c_resizearg;
107	void *		c_aliasarg;
108} el_chared_t;
109
110
111#define	STRQQ		"\"\""
112
113#define	isglob(a)	(strchr("*[]?", (a)) != NULL)
114
115#define	NOP		0x00
116#define	DELETE		0x01
117#define	INSERT		0x02
118#define	YANK		0x04
119
120#define	CHAR_FWD	(+1)
121#define	CHAR_BACK	(-1)
122
123#define	MODE_INSERT	0
124#define	MODE_REPLACE	1
125#define	MODE_REPLACE_1	2
126
127
128libedit_private int	 cv__isword(wint_t);
129libedit_private int	 cv__isWord(wint_t);
130libedit_private void	 cv_delfini(EditLine *);
131libedit_private wchar_t *cv__endword(wchar_t *, wchar_t *, int, int (*)(wint_t));
132libedit_private int	 ce__isword(wint_t);
133libedit_private void	 cv_undo(EditLine *);
134libedit_private void	 cv_yank(EditLine *, const wchar_t *, int);
135libedit_private wchar_t *cv_next_word(EditLine*, wchar_t *, wchar_t *, int,
136			int (*)(wint_t));
137libedit_private wchar_t *cv_prev_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
138libedit_private wchar_t *c__next_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
139libedit_private wchar_t *c__prev_word(wchar_t *, wchar_t *, int, int (*)(wint_t));
140libedit_private void	 c_insert(EditLine *, int);
141libedit_private void	 c_delbefore(EditLine *, int);
142libedit_private void	 c_delbefore1(EditLine *);
143libedit_private void	 c_delafter(EditLine *, int);
144libedit_private void	 c_delafter1(EditLine *);
145libedit_private int	 c_gets(EditLine *, wchar_t *, const wchar_t *);
146libedit_private int	 c_hpos(EditLine *);
147
148libedit_private int	 ch_init(EditLine *);
149libedit_private void	 ch_reset(EditLine *);
150libedit_private int	 ch_resizefun(EditLine *, el_zfunc_t, void *);
151libedit_private int	 ch_aliasfun(EditLine *, el_afunc_t, void *);
152libedit_private int	 ch_enlargebufs(EditLine *, size_t);
153libedit_private void	 ch_end(EditLine *);
154
155#endif /* _h_el_chared */
156