Home | History | Annotate | Download | only in gen 
      1 /*	$OpenBSD: isctype.c,v 1.11 2005/08/08 08:05:34 espie Exp $ */
      2 /*
      3  * Copyright (c) 1989 The Regents of the University of California.
      4  * All rights reserved.
      5  * (c) UNIX System Laboratories, Inc.
      6  * All or some portions of this file are derived from material licensed
      7  * to the University of California by American Telephone and Telegraph
      8  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
      9  * the permission of UNIX System Laboratories, Inc.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  */
     35 
     36 #define _ANSI_LIBRARY
     37 #include <ctype.h>
     38 #include <stdio.h>
     39 
     40 #undef isalnum
     41 int
     42 isalnum(int c)
     43 {
     44 	return (c == EOF ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_U|_L|_N)));
     45 }
     46 
     47 #undef isalpha
     48 int
     49 isalpha(int c)
     50 {
     51 	return (c == EOF ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_U|_L)));
     52 }
     53 
     54 #undef isblank
     55 int
     56 isblank(int c)
     57 {
     58 	return (c == ' ' || c == '\t');
     59 }
     60 
     61 #undef iscntrl
     62 int
     63 iscntrl(int c)
     64 {
     65 	return (c == EOF ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _C));
     66 }
     67 
     68 #undef isdigit
     69 int
     70 isdigit(int c)
     71 {
     72 	return (c == EOF ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _N));
     73 }
     74 
     75 #undef isgraph
     76 int
     77 isgraph(int c)
     78 {
     79 	return (c == EOF ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_P|_U|_L|_N)));
     80 }
     81 
     82 #undef islower
     83 int
     84 islower(int c)
     85 {
     86 	return (c == EOF ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _L));
     87 }
     88 
     89 #undef isprint
     90 int
     91 isprint(int c)
     92 {
     93 	return (c == EOF ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_P|_U|_L|_N|_B)));
     94 }
     95 
     96 #undef ispunct
     97 int
     98 ispunct(int c)
     99 {
    100 	return (c == EOF ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _P));
    101 }
    102 
    103 #undef isspace
    104 int
    105 isspace(int c)
    106 {
    107 	return (c == EOF ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _S));
    108 }
    109 
    110 #undef isupper
    111 int
    112 isupper(int c)
    113 {
    114 	return (c == EOF ? 0 : ((_ctype_ + 1)[(unsigned char)c] & _U));
    115 }
    116 
    117 #undef isxdigit
    118 int
    119 isxdigit(int c)
    120 {
    121 	return (c == EOF ? 0 : ((_ctype_ + 1)[(unsigned char)c] & (_N|_X)));
    122 }
    123 
    124 #undef isascii
    125 int
    126 isascii(int c)
    127 {
    128 	return ((unsigned int)c <= 0177);
    129 }
    130 
    131 #undef toascii
    132 int
    133 toascii(int c)
    134 {
    135 	return (c & 0177);
    136 }
    137 
    138 #undef _toupper
    139 int
    140 _toupper(int c)
    141 {
    142 	return (c - 'a' + 'A');
    143 }
    144 
    145 #undef _tolower
    146 int
    147 _tolower(int c)
    148 {
    149 	return (c - 'A' + 'a');
    150 }
    151