1 /* 2 * Copyright (c) 1980 Regents of the University of California. 3 * All rights reserved. The Berkeley Software License Agreement 4 * specifies the terms and conditions for redistribution. 5 * 6 * @(#)char.h 5.4 (Berkeley) 06/06/88 7 */ 8 9 extern unsigned short _cmap[]; 10 11 #define _Q 0x001 /* '" */ 12 #define _Q1 0x002 /* ` */ 13 #define _SP 0x004 /* space and tab */ 14 #define _NL 0x008 /* \n */ 15 #define _META 0x010 /* lex meta characters, sp #'`";&<>()|\t\n */ 16 #define _GLOB 0x020 /* glob characters, *?{[` */ 17 #define _ESC 0x040 /* \ */ 18 #define _DOL 0x080 /* $ */ 19 #define _DIG 0x100 /* 0-9 */ 20 #define _LET 0x200 /* a-z, A-Z, _ */ 21 22 #define cmap(c, bits) (_cmap[(unsigned char)(c)] & (bits)) 23 24 #define isglob(c) cmap(c, _GLOB) 25 #define isspace(c) cmap(c, _SP) 26 #define isspnl(c) cmap(c, _SP|_NL) 27 #define ismeta(c) cmap(c, _META) 28 #define digit(c) cmap(c, _DIG) 29 #define letter(c) cmap(c, _LET) 30 #define alnum(c) (digit(c) || letter(c)) 31 32 #define LINELEN 128 33 extern char *linp, linbuf[LINELEN]; 34 35 #define CSHPUTCHAR { \ 36 if (!(ch"E) && (ch == 0177 || ch < ' ' && ch != '\t' && \ 37 ch != '\n')) { \ 38 *linp++ = '^'; \ 39 if (ch == 0177) \ 40 ch = '?'; \ 41 else \ 42 ch |= 'A' - 1; \ 43 if (linp >= &linbuf[sizeof linbuf - 2]) \ 44 flush(); \ 45 } \ 46 ch &= TRIM; \ 47 *linp++ = ch; \ 48 if (ch == '\n' || linp >= &linbuf[sizeof(linbuf) - 2]) \ 49 flush(); \ 50 } 51