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isctype.c revision 1.22 
      1 /* $NetBSD: isctype.c,v 1.22 2013/04/13 10:21:20 joerg Exp $ */
      2 
      3 /*-
      4  * Copyright (c)2008 Citrus Project,
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 #if defined(LIBC_SCCS) && !defined(lint)
     31 __RCSID("$NetBSD: isctype.c,v 1.22 2013/04/13 10:21:20 joerg Exp $");
     32 #endif /* LIBC_SCCS and not lint */
     33 
     34 #include "namespace.h"
     35 #include <sys/types.h>
     36 #include <sys/ctype_bits.h>
     37 #define _CTYPE_NOINLINE
     38 #include <ctype.h>
     39 #include <langinfo.h>
     40 #define __SETLOCALE_SOURCE__
     41 #include <locale.h>
     42 #include <stdio.h>
     43 #if EOF != -1
     44 #error "EOF != -1"
     45 #endif
     46 
     47 #include "setlocale_local.h"
     48 
     49 #define _CTYPE_TAB(table, i)	((_current_cache()->table + 1)[i])
     50 
     51 #define _ISCTYPE_FUNC(name, bit) \
     52 int \
     53 is##name(int c) \
     54 { \
     55 	return (int)(_CTYPE_TAB(ctype_tab, c) & (bit)); \
     56 }
     57 
     58 _ISCTYPE_FUNC(alnum, (_CTYPE_A|_CTYPE_D))
     59 _ISCTYPE_FUNC(alpha,  _CTYPE_A)
     60 _ISCTYPE_FUNC(blank,  _CTYPE_BL)
     61 _ISCTYPE_FUNC(cntrl,  _CTYPE_C            )
     62 _ISCTYPE_FUNC(digit,  _CTYPE_D)
     63 _ISCTYPE_FUNC(graph,  _CTYPE_G)
     64 _ISCTYPE_FUNC(lower,  _CTYPE_L            )
     65 _ISCTYPE_FUNC(print,  _CTYPE_R)
     66 _ISCTYPE_FUNC(punct,  _CTYPE_P            )
     67 _ISCTYPE_FUNC(space,  _CTYPE_S            )
     68 _ISCTYPE_FUNC(upper,  _CTYPE_U            )
     69 _ISCTYPE_FUNC(xdigit, _CTYPE_X)
     70 
     71 int
     72 toupper(int c)
     73 {
     74 	return (int)_CTYPE_TAB(toupper_tab, c);
     75 }
     76 
     77 int
     78 tolower(int c)
     79 {
     80 	return (int)_CTYPE_TAB(tolower_tab, c);
     81 }
     82 
     83 int
     84 _toupper(int c)
     85 {
     86 	return (c - 'a' + 'A');
     87 }
     88 
     89 int
     90 _tolower(int c)
     91 {
     92 	return (c - 'A' + 'a');
     93 }
     94