1 /* 2 * Copyright (c) 1983 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 * 17 * @(#)char.h 3.7 (Berkeley) 02/16/89 18 */ 19 20 /* 21 * Macros and things to deal with control characters. 22 * 23 * Unctrl() is just like the standard function, except we don't want 24 * to include curses. 25 * Isctrl() returns true for all characters less than space and 26 * greater than or equal to delete. 27 * Isprt() is tab and all characters not isctrl(). It's used 28 * by wwwrite(). 29 * Isunctrl() includes all characters that should be expanded 30 * using unctrl() by wwwrite() if ww_unctrl is set. 31 */ 32 33 extern char *_unctrl[]; 34 extern char _cmap[]; 35 #define ctrl(c) (c & 0x1f) 36 #define unctrl(c) (_unctrl[(unsigned char) (c)]) 37 #define _C 0x01 38 #define _P 0x02 39 #define _U 0x04 40 #define isctrl(c) (_cmap[(unsigned char) (c)] & _C) 41 #define isprt(c) (_cmap[(unsigned char) (c)] & _P) 42 #define isunctrl(c) (_cmap[(unsigned char) (c)] & _U) 43