lib/libc/gen/isctype.c

   1 /* $NetBSD: isctype.c,v 1.16.40.1 2009/01/04 17:02:19 christos 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 1.16.40.1 2009/01/04 17:02:19 christos Exp $");
  32 #endif /* LIBC_SCCS and not lint */
  33
  34 #include "namespace.h"
  35 #include <sys/types.h>
  36 #include <ctype.h>
  37 #include <langinfo.h>
  38 #define __SETLOCALE_SOURCE__
  39 #include <locale.h>
  40 #include <stdio.h>
  41 #if EOF != -1
  42 #error "EOF != -1"
  43 #endif
  44
  45 #include "setlocale_local.h"
  46
  47 #define _CTYPE_TAB(table, i) \
  48     (((*_current_locale())->cache.table + 1)[i])
  49
  50 #undef isalnum
  51 #undef isalpha
  52 #undef iscntrl
  53 #undef isdigit
  54 #undef isgraph
  55 #undef islower
  56 #undef isprint
  57 #undef ispunct
  58 #undef isspace
  59 #undef isupper
  60 #undef isxdigit
  61
  62 #define _ISCTYPE_FUNC(name, bit) \
  63 int \
  64 is##name(int c) \
  65 { \
  66         return (int)(_CTYPE_TAB(ctype_tab, c) & (bit)); \
  67 }
  68
  69 _ISCTYPE_FUNC(alnum,  _U|_L|_N      )
  70 _ISCTYPE_FUNC(alpha,  _U|_L         )
  71 _ISCTYPE_FUNC(cntrl,  _C            )
  72 _ISCTYPE_FUNC(digit,  _N            )
  73 _ISCTYPE_FUNC(graph,  _P|_U|_L|_N   )
  74 _ISCTYPE_FUNC(lower,  _L            )
  75 _ISCTYPE_FUNC(print,  _P|_U|_L|_N|_B)
  76 _ISCTYPE_FUNC(punct,  _P            )
  77 _ISCTYPE_FUNC(space,  _S            )
  78 _ISCTYPE_FUNC(upper,  _U            )
  79 _ISCTYPE_FUNC(xdigit, _N|_X         )
  80
  81 #undef isblank
  82 int
  83 isblank(int c)
  84 {
  85         /* XXX: FIXME */
  86         return c == ' ' || c == '\t';
  87 }
  88
  89 #undef toupper
  90 int
  91 toupper(int c)
  92 {
  93         return (int)_CTYPE_TAB(toupper_tab, c);
  94 }
  95
  96 #undef tolower
  97 int
  98 tolower(int c)
  99 {
 100         return (int)_CTYPE_TAB(tolower_tab, c);
 101 }
 102
 103 #undef _toupper
 104 int
 105 _toupper(int c)
 106 {
 107         return (c - 'a' + 'A');
 108 }
 109
 110 #undef _tolower
 111 int
 112 _tolower(int c)
 113 {
 114         return (c - 'A' + 'a');
 115 }