1 /* 2 * Copyright (c) 1988 Mark Nudleman 3 * Copyright (c) 1988, 1993 4 * The Regents of the University of California. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the University of 17 * California, Berkeley and its contributors. 18 * 4. 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 * @(#)less.h 8.1 (Berkeley) 6/6/93 35 */ 36 37 #define NULL_POSITION ((off_t)(-1)) 38 39 #define EOI (0) 40 #define READ_INTR (-2) 41 42 /* Special chars used to tell put_line() to do something special */ 43 #define UL_CHAR '\201' /* Enter underline mode */ 44 #define UE_CHAR '\202' /* Exit underline mode */ 45 #define BO_CHAR '\203' /* Enter boldface mode */ 46 #define BE_CHAR '\204' /* Exit boldface mode */ 47 48 #define CONTROL_CHAR(c) (iscntrl(c)) 49 #define CARAT_CHAR(c) ((c == '\177') ? '?' : (c | 0100)) 50 51 #define TOP (0) 52 #define TOP_PLUS_ONE (1) 53 #define BOTTOM (-1) 54 #define BOTTOM_PLUS_ONE (-2) 55 #define MIDDLE (-3) 56 57 #define A_INVALID -1 58 59 #define A_AGAIN_SEARCH 1 60 #define A_B_LINE 2 61 #define A_B_SCREEN 3 62 #define A_B_SCROLL 4 63 #define A_B_SEARCH 5 64 #define A_DIGIT 6 65 #define A_EXAMINE 7 66 #define A_FREPAINT 8 67 #define A_F_LINE 9 68 #define A_F_SCREEN 10 69 #define A_F_SCROLL 11 70 #define A_F_SEARCH 12 71 #define A_GOEND 13 72 #define A_GOLINE 14 73 #define A_GOMARK 15 74 #define A_HELP 16 75 #define A_NEXT_FILE 17 76 #define A_PERCENT 18 77 #define A_PREFIX 19 78 #define A_PREV_FILE 20 79 #define A_QUIT 21 80 #define A_REPAINT 22 81 #define A_SETMARK 23 82 #define A_STAT 24 83 #define A_VISUAL 25 84 #define A_TAGFILE 26 85 #define A_FILE_LIST 27 86