1 /* 2 * Copyright (c) 1983, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * Edward Wang at The University of California, Berkeley. 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. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Berkeley and its contributors. 20 * 4. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)char.h 8.1 (Berkeley) 6/6/93 37 * $FreeBSD: src/usr.bin/window/char.h,v 1.3.6.1 2001/05/17 09:45:00 obrien Exp $ 38 * $DragonFly: src/usr.bin/window/char.h,v 1.2 2003/06/17 04:29:33 dillon Exp $ 39 */ 40 41 /* 42 * Macros and things to deal with control characters. 43 * 44 * Unctrl() is just like the standard function, except we don't want 45 * to include curses. 46 * Isctrl() returns true for all characters less than space and 47 * greater than or equal to delete. 48 * Isprt() is tab and all characters not isctrl(). It's used 49 * by wwwrite(). 50 * Isunctrl() includes all characters that should be expanded 51 * using unctrl() by wwwrite() if ww_unctrl is set. 52 */ 53 54 #include <ctype.h> 55 #include <string.h> 56 #include <stdlib.h> 57 58 extern char *_unctrl[]; 59 #define ctrl(c) (c & 0x1f) 60 #define unctrl(c) (_unctrl[(unsigned char) (c)]) 61 #define isctrl(c) iscntrl((unsigned char)(c)) 62 #define isprt(c) (isprint((unsigned char)(c)) || (c) == '\t') 63 #define isunctrl(c) (strchr("\b\t\n\r", (c)) == NULL && isctrl(c)) 64