1 /* $NetBSD: char.h,v 1.5 2009/04/14 08:50:06 lukem Exp $ */ 2 3 /* 4 * Copyright (c) 1983, 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 * Edward Wang at The University of California, Berkeley. 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 * @(#)char.h 8.1 (Berkeley) 6/6/93 35 */ 36 37 /* 38 * Macros and things to deal with control characters. 39 * 40 * Unctrl() is just like the standard function, except we don't want 41 * to include curses. 42 * Isctrl() returns true for all characters less than space and 43 * greater than or equal to delete. 44 * Isprt() is tab and all characters not isctrl(). It's used 45 * by wwwrite(). 46 * Isunctrl() includes all characters that should be expanded 47 * using unctrl() by wwwrite() if ww_unctrl is set. 48 */ 49 50 extern const char *_unctrl[]; 51 extern char _cmap[]; 52 #define ctrl(c) (c & 0x1f) 53 #define unctrl(c) (_unctrl[(unsigned char) (c)]) 54 #define _C 0x01 55 #define _P 0x02 56 #define _U 0x04 57 #define isctrl(c) (_cmap[(unsigned char) (c)] & _C) 58 #define isprt(c) (_cmap[(unsigned char) (c)] & _P) 59 #define isunctrl(c) (_cmap[(unsigned char) (c)] & _U) 60