129 lines
2.8 KiB
C
129 lines
2.8 KiB
C
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/*
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* Copyright (C) 2006 Apple Computer, Inc. All rights reserved.
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*
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* This document is the property of Apple Computer, Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Computer, Inc.
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*/
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#include <ctype.h>
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#define _U 0x01 /* upper */
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#define _L 0x02 /* lower */
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#define _D 0x04 /* digit */
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#define _C 0x08 /* cntrl */
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#define _P 0x10 /* punct */
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#define _S 0x20 /* white space (space/lf/tab) */
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#define _X 0x40 /* hex digit */
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#define _SP 0x80 /* hard space (0x20) */
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#define ismask(x) (_ctype[(int)(unsigned char)(x)])
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static unsigned char _ctype[] = {
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_C,_C,_C,_C,_C,_C,_C,_C, /* 0-7 */
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_C,_C|_S,_C|_S,_C|_S,_C|_S,_C|_S,_C,_C, /* 8-15 */
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_C,_C,_C,_C,_C,_C,_C,_C, /* 16-23 */
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_C,_C,_C,_C,_C,_C,_C,_C, /* 24-31 */
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_S|_SP,_P,_P,_P,_P,_P,_P,_P, /* 32-39 */
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_P,_P,_P,_P,_P,_P,_P,_P, /* 40-47 */
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_D,_D,_D,_D,_D,_D,_D,_D, /* 48-55 */
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_D,_D,_P,_P,_P,_P,_P,_P, /* 56-63 */
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_P,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U|_X,_U, /* 64-71 */
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_U,_U,_U,_U,_U,_U,_U,_U, /* 72-79 */
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_U,_U,_U,_U,_U,_U,_U,_U, /* 80-87 */
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_U,_U,_U,_P,_P,_P,_P,_P, /* 88-95 */
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_P,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L|_X,_L, /* 96-103 */
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_L,_L,_L,_L,_L,_L,_L,_L, /* 104-111 */
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_L,_L,_L,_L,_L,_L,_L,_L, /* 112-119 */
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_L,_L,_L,_P,_P,_P,_P,_C, /* 120-127 */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 128-143 */
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 144-159 */
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_S|_SP,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P, /* 160-175 */
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_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P,_P, /* 176-191 */
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_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U,_U, /* 192-207 */
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_U,_U,_U,_U,_U,_U,_U,_P,_U,_U,_U,_U,_U,_U,_U,_L, /* 208-223 */
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_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L,_L, /* 224-239 */
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_L,_L,_L,_L,_L,_L,_L,_P,_L,_L,_L,_L,_L,_L,_L,_L}; /* 240-255 */
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unsigned char tolower(unsigned char c)
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{
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if(isupper(c))
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c -= 'A'-'a';
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return c;
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}
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unsigned char toupper(unsigned char c)
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{
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if(islower(c))
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c -= 'a'-'A';
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return c;
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}
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int isalnum(int c)
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{
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return ((ismask(c)&(_U|_L|_D)) != 0);
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}
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int isalpha(int c)
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{
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return ((ismask(c)&(_U|_L)) != 0);
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}
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int iscntrl(int c)
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{
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return ((ismask(c)&(_C)) != 0);
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}
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int isdigit(int c)
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{
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return ((ismask(c)&(_D)) != 0);
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}
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int isgraph(int c)
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{
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return ((ismask(c)&(_P|_U|_L|_D)) != 0);
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}
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int islower(int c)
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{
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return ((ismask(c)&(_L)) != 0);
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}
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int isprint(int c)
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{
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return ((ismask(c)&(_P|_U|_L|_D|_SP)) != 0);
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}
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int ispunct(int c)
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{
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return ((ismask(c)&(_P)) != 0);
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}
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int isspace(int c)
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{
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return ((ismask(c)&(_S)) != 0);
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}
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int isupper(int c)
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{
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return ((ismask(c)&(_U)) != 0);
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}
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int isxdigit(int c)
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{
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return ((ismask(c)&(_D|_X)) != 0);
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}
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int isascii(int c)
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{
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return ((unsigned char)c <= 0x7f);
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}
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int toascii(int c)
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{
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return ((unsigned char)c & 0x7f);
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}
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