lib/libc/citrus/citrus_bcs.h

   1 /* $NetBSD: citrus_bcs.h,v 1.4 2008/02/09 14:56:20 junyoung Exp $ */
   2 /* $DragonFly: src/lib/libc/citrus/citrus_bcs.h,v 1.3 2008/04/10 10:21:01 hasso Exp $ */
   3
   4 /*-
   5  * Copyright (c)2003 Citrus Project,
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  29
  30 #ifndef _CITRUS_BCS_H_
  31 #define _CITRUS_BCS_H_
  32
  33 /*
  34  *
  35  * `Basic character set' is a term defined in the ISO C standard.
  36  * Citrus bcs is, if anything, close to `portable character set'
  37  * defined in the POSIX.
  38  */
  39
  40 #define _CITRUS_BCS_PRED(_name_, _cond_) \
  41 static __inline int _citrus_bcs_##_name_(uint8_t c) { return (_cond_); }
  42
  43 /*
  44  * predicates.
  45  * Unlike predicates defined in ctype.h, these do not accept EOF.
  46  */
  47 _CITRUS_BCS_PRED(isblank, c == ' ' || c == '\t')
  48 _CITRUS_BCS_PRED(iseol, c == '\n' || c == '\r')
  49 _CITRUS_BCS_PRED(isspace,
  50                  _citrus_bcs_isblank(c) || _citrus_bcs_iseol(c) ||
  51                  c == '\f' || c == '\v')
  52 _CITRUS_BCS_PRED(isdigit, c >= '0' && c <= '9')
  53 _CITRUS_BCS_PRED(isupper, c >= 'A' && c <= 'Z')
  54 _CITRUS_BCS_PRED(islower, c >= 'a' && c <= 'z')
  55 _CITRUS_BCS_PRED(isalpha, _citrus_bcs_isupper(c) || _citrus_bcs_islower(c))
  56 _CITRUS_BCS_PRED(isalnum, _citrus_bcs_isdigit(c) || _citrus_bcs_isalpha(c))
  57 _CITRUS_BCS_PRED(isxdigit,
  58                  _citrus_bcs_isdigit(c) ||
  59                  (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'))
  60
  61 /*
  62  * transliterate between uppercase and lowercase.
  63  * Unlike transliterator defined in ctype.h, these do not accept EOF.
  64  */
  65 static __inline uint8_t
  66 _citrus_bcs_toupper(uint8_t c)
  67 {
  68         return (_citrus_bcs_islower(c) ? (c - 'a' + 'A') : c);
  69 }
  70
  71 static __inline uint8_t
  72 _citrus_bcs_tolower(uint8_t c)
  73 {
  74         return (_citrus_bcs_isupper(c) ? (c - 'A' + 'a') : c);
  75 }
  76
  77 __BEGIN_DECLS
  78 int _citrus_bcs_strcasecmp(const char * __restrict, const char * __restrict);
  79 int _citrus_bcs_strncasecmp(const char * __restrict, const char * __restrict,
  80                             size_t);
  81 const char *_citrus_bcs_skip_ws(const char * __restrict);
  82 const char *_citrus_bcs_skip_nonws(const char * __restrict);
  83 const char *_citrus_bcs_skip_ws_len(const char * __restrict,
  84                                        size_t * __restrict);
  85 const char *_citrus_bcs_skip_nonws_len(const char * __restrict,
  86                                        size_t * __restrict);
  87 void _citrus_bcs_trunc_rws_len(const char * __restrict, size_t * __restrict);
  88 void _citrus_bcs_convert_to_lower(char *);
  89 void _citrus_bcs_convert_to_upper(char *);
  90 __END_DECLS
  91
  92 #endif