1/*	$NetBSD: less.h,v 1.6 2009/01/24 13:58:21 tsutsui Exp $	*/
2
3/*
4 * Copyright (c) 1988 Mark Nudelman
5 * Copyright (c) 1988, 1993
6 *	The Regents of the University of California.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 *    may be used to endorse or promote products derived from this software
18 *    without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 *	@(#)less.h	8.1 (Berkeley) 6/6/93
33 */
34
35#define	NULL_POSITION	((off_t)(-1))
36
37#define	EOI		(0)
38#define	READ_INTR	(-2)
39
40/* Special chars used to tell put_line() to do something special */
41#define	UL_CHAR		'\201'		/* Enter underline mode */
42#define	UE_CHAR		'\202'		/* Exit underline mode */
43#define	BO_CHAR		'\203'		/* Enter boldface mode */
44#define	BE_CHAR		'\204'		/* Exit boldface mode */
45
46#define	CONTROL_CHAR(c)		(iscntrl((unsigned char)c))
47#define	CARAT_CHAR(c)		((c == '\177') ? '?' : (c | 0100))
48
49#define	TOP		(0)
50#define	TOP_PLUS_ONE	(1)
51#define	BOTTOM		(-1)
52#define	BOTTOM_PLUS_ONE	(-2)
53#define	MIDDLE		(-3)
54
55#define	A_INVALID		-1
56
57#define	A_AGAIN_SEARCH		1
58#define	A_B_LINE		2
59#define	A_B_SCREEN		3
60#define	A_B_SCROLL		4
61#define	A_B_SEARCH		5
62#define	A_DIGIT			6
63#define	A_EXAMINE		7
64#define	A_FREPAINT		8
65#define	A_F_LINE		9
66#define	A_F_SCREEN		10
67#define	A_F_SCROLL		11
68#define	A_F_SEARCH		12
69#define	A_GOEND			13
70#define	A_GOLINE		14
71#define	A_GOMARK		15
72#define	A_HELP			16
73#define	A_NEXT_FILE		17
74#define	A_PERCENT		18
75#define	A_PREFIX		19
76#define	A_PREV_FILE		20
77#define	A_QUIT			21
78#define	A_REPAINT		22
79#define	A_SETMARK		23
80#define	A_STAT			24
81#define	A_VISUAL		25
82#define	A_TAGFILE		26
83#define	A_FILE_LIST		27
84