xref: /freebsd/lib/libc/iconv/citrus_bcs.h (revision 396c556d77189a5c474d35cec6f44a762e310b7d)
1 /* $FreeBSD$ */
2 /* $NetBSD: citrus_bcs.h,v 1.6 2009/01/11 02:46:24 christos 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 #include <sys/types.h>
31 
32 #ifndef _CITRUS_BCS_H_
33 #define _CITRUS_BCS_H_
34 
35 /*
36  * predicate/conversion for basic character set.
37  *
38  * `Basic character set' is a term defined in the ISO C standard.
39  * Citrus bcs is, if anything, close to `portable character set'
40  * defined in the POSIX.
41  */
42 
43 #define _CITRUS_BCS_PRED(_name_, _cond_) \
44 static __inline int _citrus_bcs_##_name_(uint8_t c) { return (_cond_); }
45 
46 /*
47  * predicates.
48  * Unlike predicates defined in ctype.h, these do not accept EOF.
49  */
50 _CITRUS_BCS_PRED(isblank, c == ' ' || c == '\t')
51 _CITRUS_BCS_PRED(iseol, c == '\n' || c == '\r')
52 _CITRUS_BCS_PRED(isspace, _citrus_bcs_isblank(c) || _citrus_bcs_iseol(c) ||
53     c == '\f' || c == '\v')
54 _CITRUS_BCS_PRED(isdigit, c >= '0' && c <= '9')
55 _CITRUS_BCS_PRED(isupper, c >= 'A' && c <= 'Z')
56 _CITRUS_BCS_PRED(islower, c >= 'a' && c <= 'z')
57 _CITRUS_BCS_PRED(isalpha, _citrus_bcs_isupper(c) || _citrus_bcs_islower(c))
58 _CITRUS_BCS_PRED(isalnum, _citrus_bcs_isdigit(c) || _citrus_bcs_isalpha(c))
59 _CITRUS_BCS_PRED(isxdigit, _citrus_bcs_isdigit(c) ||
60     (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'))
61 
62 /*
63  * transliterate between uppercase and lowercase.
64  * Unlike transliterator defined in ctype.h, these do not accept EOF.
65  */
66 static __inline uint8_t
67 _citrus_bcs_toupper(uint8_t c)
68 {
69 
70 	return (_citrus_bcs_islower(c) ? (c - 'a' + 'A') : c);
71 }
72 
73 static __inline uint8_t
74 _citrus_bcs_tolower(uint8_t c)
75 {
76 
77 	return (_citrus_bcs_isupper(c) ? (c - 'A' + 'a') : c);
78 }
79 
80 __BEGIN_DECLS
81 int		 _citrus_bcs_strcasecmp(const char * __restrict,
82 		    const char * __restrict);
83 int		 _citrus_bcs_strncasecmp(const char * __restrict,
84 		    const char * __restrict, size_t);
85 const char	*_citrus_bcs_skip_ws(const char * __restrict);
86 const char	*_citrus_bcs_skip_nonws(const char * __restrict);
87 const char	*_citrus_bcs_skip_ws_len(const char * __restrict,
88 		    size_t * __restrict);
89 const char	*_citrus_bcs_skip_nonws_len(const char * __restrict,
90 		    size_t * __restrict);
91 void		 _citrus_bcs_trunc_rws_len(const char * __restrict,
92 		    size_t * __restrict);
93 void		 _citrus_bcs_convert_to_lower(char *);
94 void		 _citrus_bcs_convert_to_upper(char *);
95 
96 long int	 _citrus_bcs_strtol(const char * __restrict,
97 		    char ** __restrict, int);
98 unsigned long	 _citrus_bcs_strtoul(const char * __restrict,
99 		    char ** __restrict, int);
100 __END_DECLS
101 
102 #endif
103