Return to char.h CVS log

Up to [CSRG BSD Unix] / 43BSDTahoe / ucb / window

Annotation of 43BSDTahoe/ucb/window/char.h, revision 1.1.1.1

1.1       root        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      3.6 (Berkeley) 6/29/88
                     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: char *_unctrl[];
                     34: 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)

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.