Home | History | Annotate | Line # | Download | only in gen
isctype.c revision 1.12 
      1 /*
      2  * Copyright (c) 1989 The Regents of the University of California.
      3  * All rights reserved.
      4  * (c) UNIX System Laboratories, Inc.
      5  * All or some portions of this file are derived from material licensed
      6  * to the University of California by American Telephone and Telegraph
      7  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
      8  * the permission of UNIX System Laboratories, Inc.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the University of
     21  *	California, Berkeley and its contributors.
     22  * 4. Neither the name of the University nor the names of its contributors
     23  *    may be used to endorse or promote products derived from this software
     24  *    without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     36  * SUCH DAMAGE.
     37  */
     38 
     39 #if defined(LIBC_SCCS) && !defined(lint)
     40 /*static char *sccsid = "from: @(#)isctype.c	5.2 (Berkeley) 6/1/90";*/
     41 static char *rcsid = "$Id: isctype.c,v 1.12 1994/05/17 04:13:51 cgd Exp $";
     42 #endif /* LIBC_SCCS and not lint */
     43 
     44 #define _ANSI_LIBRARY
     45 #include <ctype.h>
     46 
     47 #undef isalnum
     48 int
     49 isalnum(c)
     50 	int c;
     51 {
     52 	return((_ctype_ + 1)[c] & (_U|_L|_N));
     53 }
     54 
     55 #undef isalpha
     56 int
     57 isalpha(c)
     58 	int c;
     59 {
     60 	return((_ctype_ + 1)[c] & (_U|_L));
     61 }
     62 
     63 #undef isblank
     64 int
     65 isblank(c)
     66 	int c;
     67 {
     68 	return(c == ' ' || c == '\t');
     69 }
     70 
     71 #undef iscntrl
     72 int
     73 iscntrl(c)
     74 	int c;
     75 {
     76 	return((_ctype_ + 1)[c] & _C);
     77 }
     78 
     79 #undef isdigit
     80 int
     81 isdigit(c)
     82 	int c;
     83 {
     84 	return((_ctype_ + 1)[c] & _N);
     85 }
     86 
     87 #undef isgraph
     88 int
     89 isgraph(c)
     90 	int c;
     91 {
     92 	return((_ctype_ + 1)[c] & (_P|_U|_L|_N));
     93 }
     94 
     95 #undef islower
     96 int
     97 islower(c)
     98 	int c;
     99 {
    100 	return((_ctype_ + 1)[c] & _L);
    101 }
    102 
    103 #undef isprint
    104 int
    105 isprint(c)
    106 	int c;
    107 {
    108 	return((_ctype_ + 1)[c] & (_P|_U|_L|_N|_B));
    109 }
    110 
    111 #undef ispunct
    112 int
    113 ispunct(c)
    114 	int c;
    115 {
    116 	return((_ctype_ + 1)[c] & _P);
    117 }
    118 
    119 #undef isspace
    120 int
    121 isspace(c)
    122 	int c;
    123 {
    124 	return((_ctype_ + 1)[c] & _S);
    125 }
    126 
    127 #undef isupper
    128 int
    129 isupper(c)
    130 	int c;
    131 {
    132 	return((_ctype_ + 1)[c] & _U);
    133 }
    134 
    135 #undef isxdigit
    136 int
    137 isxdigit(c)
    138 	int c;
    139 {
    140 	return((_ctype_ + 1)[c] & (_N|_X));
    141 }
    142 
    143 #undef isascii
    144 int
    145 isascii(c)
    146 	int c;
    147 {
    148 	return ((unsigned)(c) <= 0177);
    149 }
    150 
    151 #undef toascii
    152 int
    153 toascii(c)
    154 	int c;
    155 {
    156 	return ((c) & 0177);
    157 }
    158 
    159 #undef _toupper
    160 int
    161 _toupper(c)
    162 	int c;
    163 {
    164 	return (c - 'a' + 'A');
    165 }
    166 
    167 #undef _tolower
    168 int
    169 _tolower(c)
    170 	int c;
    171 {
    172 	return (c - 'A' + 'a');
    173 }
    174