lib/libc/gen/isctype.c

   1 /* $NetBSD: isctype.c,v 1.21 2010/12/14 02:28:57 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 1.21 2010/12/14 02:28:57 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_U|_CTYPE_L|_CTYPE_N      )
  59 _ISCTYPE_FUNC(alpha,  _CTYPE_U|_CTYPE_L         )
  60 _ISCTYPE_FUNC(cntrl,  _CTYPE_C            )
  61 _ISCTYPE_FUNC(digit,  _CTYPE_N            )
  62 _ISCTYPE_FUNC(graph,  _CTYPE_P|_CTYPE_U|_CTYPE_L|_CTYPE_N   )
  63 _ISCTYPE_FUNC(lower,  _CTYPE_L            )
  64 _ISCTYPE_FUNC(print,  _CTYPE_P|_CTYPE_U|_CTYPE_L|_CTYPE_N|_CTYPE_B)
  65 _ISCTYPE_FUNC(punct,  _CTYPE_P            )
  66 _ISCTYPE_FUNC(space,  _CTYPE_S            )
  67 _ISCTYPE_FUNC(upper,  _CTYPE_U            )
  68 _ISCTYPE_FUNC(xdigit, _CTYPE_N|_CTYPE_X         )
  69
  70 int
  71 isblank(int c)
  72 {
  73         /* XXX: FIXME */
  74         return c == ' ' || c == '\t';
  75 }
  76
  77 int
  78 toupper(int c)
  79 {
  80         return (int)_CTYPE_TAB(toupper_tab, c);
  81 }
  82
  83 int
  84 tolower(int c)
  85 {
  86         return (int)_CTYPE_TAB(tolower_tab, c);
  87 }
  88
  89 int
  90 _toupper(int c)
  91 {
  92         return (c - 'a' + 'A');
  93 }
  94
  95 int
  96 _tolower(int c)
  97 {
  98         return (c - 'A' + 'a');
  99 }