usr/src/usr.bin/more/less.h

/*
 * Copyright (c) 1988 Mark Nudleman
 * Copyright (c) 1988 Regents of the University of California.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms are permitted
 * provided that the above copyright notice and this paragraph are
 * duplicated in all such forms and that any documentation,
 * advertising materials, and other materials related to such
 * distribution and use acknowledge that the software was developed
 * by Mark Nudleman and the University of California, Berkeley.  The
 * name of Mark Nudleman or the
 * University may not be used to endorse or promote products derived
 * from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 *
 *      @(#)less.h      5.7 (Berkeley) %G%
 */

#define RECOMP

#define NULL_POSITION   ((off_t)(-1))

#define EOI             (0)
#define READ_INTR       (-2)

/* Special chars used to tell put_line() to do something special */
#define UL_CHAR         '\201'          /* Enter underline mode */
#define UE_CHAR         '\202'          /* Exit underline mode */
#define BO_CHAR         '\203'          /* Enter boldface mode */
#define BE_CHAR         '\204'          /* Exit boldface mode */

#define CONTROL_CHAR(c)         (iscntrl(c))
#define CARAT_CHAR(c)           ((c == '\177') ? '?' : (c | 0100))

#define TOP             (0)
#define TOP_PLUS_ONE    (1)
#define BOTTOM          (-1)
#define BOTTOM_PLUS_ONE (-2)
#define MIDDLE          (-3)

#define A_INVALID               -1

#define A_AGAIN_SEARCH          1
#define A_B_LINE                2
#define A_B_SCREEN              3
#define A_B_SCROLL              4
#define A_B_SEARCH              5
#define A_DIGIT                 6
#define A_EXAMINE               7
#define A_FREPAINT              8
#define A_F_LINE                9
#define A_F_SCREEN              10
#define A_F_SCROLL              11
#define A_F_SEARCH              12
#define A_GOEND                 13
#define A_GOLINE                14
#define A_GOMARK                15
#define A_HELP                  16
#define A_NEXT_FILE             17
#define A_PERCENT               18
#define A_PREFIX                19
#define A_PREV_FILE             20
#define A_QUIT                  21
#define A_REPAINT               22
#define A_SETMARK               23
#define A_STAT                  24
#define A_VISUAL                25
#define A_TAGFILE               26