1/* $FreeBSD$ */
2/* $NetBSD: citrus_bcs.h,v 1.6 2009/01/11 02:46:24 christos Exp $ */
3
4/*-
5 * SPDX-License-Identifier: BSD-2-Clause
6 *
7 * Copyright (c)2003 Citrus Project,
8 * All rights reserved.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32#include <sys/types.h>
33
34#ifndef _CITRUS_BCS_H_
35#define _CITRUS_BCS_H_
36
37/*
38 * predicate/conversion for basic character set.
39 *
40 * `Basic character set' is a term defined in the ISO C standard.
41 * Citrus bcs is, if anything, close to `portable character set'
42 * defined in the POSIX.
43 */
44
45#define _CITRUS_BCS_PRED(_name_, _cond_) \
46static __inline int _citrus_bcs_##_name_(uint8_t c) { return (_cond_); }
47
48/*
49 * predicates.
50 * Unlike predicates defined in ctype.h, these do not accept EOF.
51 */
52_CITRUS_BCS_PRED(isblank, c == ' ' || c == '\t')
53_CITRUS_BCS_PRED(iseol, c == '\n' || c == '\r')
54_CITRUS_BCS_PRED(isspace, _citrus_bcs_isblank(c) || _citrus_bcs_iseol(c) ||
55    c == '\f' || c == '\v')
56_CITRUS_BCS_PRED(isdigit, c >= '0' && c <= '9')
57_CITRUS_BCS_PRED(isupper, c >= 'A' && c <= 'Z')
58_CITRUS_BCS_PRED(islower, c >= 'a' && c <= 'z')
59_CITRUS_BCS_PRED(isalpha, _citrus_bcs_isupper(c) || _citrus_bcs_islower(c))
60_CITRUS_BCS_PRED(isalnum, _citrus_bcs_isdigit(c) || _citrus_bcs_isalpha(c))
61_CITRUS_BCS_PRED(isxdigit, _citrus_bcs_isdigit(c) ||
62    (c >= 'A' && c <= 'F') || (c >= 'a' && c <= 'f'))
63
64/*
65 * transliterate between uppercase and lowercase.
66 * Unlike transliterator defined in ctype.h, these do not accept EOF.
67 */
68static __inline uint8_t
69_citrus_bcs_toupper(uint8_t c)
70{
71
72	return (_citrus_bcs_islower(c) ? (c - 'a' + 'A') : c);
73}
74
75static __inline uint8_t
76_citrus_bcs_tolower(uint8_t c)
77{
78
79	return (_citrus_bcs_isupper(c) ? (c - 'A' + 'a') : c);
80}
81
82__BEGIN_DECLS
83int		 _citrus_bcs_strcasecmp(const char * __restrict,
84		    const char * __restrict);
85int		 _citrus_bcs_strncasecmp(const char * __restrict,
86		    const char * __restrict, size_t);
87const char	*_citrus_bcs_skip_ws(const char * __restrict);
88const char	*_citrus_bcs_skip_nonws(const char * __restrict);
89const char	*_citrus_bcs_skip_ws_len(const char * __restrict,
90		    size_t * __restrict);
91const char	*_citrus_bcs_skip_nonws_len(const char * __restrict,
92		    size_t * __restrict);
93void		 _citrus_bcs_trunc_rws_len(const char * __restrict,
94		    size_t * __restrict);
95void		 _citrus_bcs_convert_to_lower(char *);
96void		 _citrus_bcs_convert_to_upper(char *);
97
98long int	 _citrus_bcs_strtol(const char * __restrict,
99		    char ** __restrict, int);
100unsigned long	 _citrus_bcs_strtoul(const char * __restrict,
101		    char ** __restrict, int);
102__END_DECLS
103
104#endif
105