xref: /freebsd/include/_ctype.h (revision d9f0ce31900a48d1a2bfc1c8c86f79d1e831451a)
1 /*
2  * Copyright (c) 1989, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  * (c) UNIX System Laboratories, Inc.
5  * All or some portions of this file are derived from material licensed
6  * to the University of California by American Telephone and Telegraph
7  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
8  * the permission of UNIX System Laboratories, Inc.
9  *
10  * This code is derived from software contributed to Berkeley by
11  * Paul Borman at Krystal Technologies.
12  *
13  * Redistribution and use in source and binary forms, with or without
14  * modification, are permitted provided that the following conditions
15  * are met:
16  * 1. Redistributions of source code must retain the above copyright
17  *    notice, this list of conditions and the following disclaimer.
18  * 2. Redistributions in binary form must reproduce the above copyright
19  *    notice, this list of conditions and the following disclaimer in the
20  *    documentation and/or other materials provided with the distribution.
21  * 3. Neither the name of the University nor the names of its contributors
22  *    may be used to endorse or promote products derived from this software
23  *    without specific prior written permission.
24  *
25  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
29  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35  * SUCH DAMAGE.
36  *
37  * From @(#)ctype.h	8.4 (Berkeley) 1/21/94
38  * From FreeBSD: src/include/ctype.h,v 1.27 2004/06/23 07:11:39 tjr Exp
39  * $FreeBSD$
40  */
41 
42 #ifndef __CTYPE_H_
43 #define	__CTYPE_H_
44 
45 #include <sys/cdefs.h>
46 #include <sys/_types.h>
47 
48 #define	_CTYPE_A	0x00000100L		/* Alpha */
49 #define	_CTYPE_C	0x00000200L		/* Control */
50 #define	_CTYPE_D	0x00000400L		/* Digit */
51 #define	_CTYPE_G	0x00000800L		/* Graph */
52 #define	_CTYPE_L	0x00001000L		/* Lower */
53 #define	_CTYPE_P	0x00002000L		/* Punct */
54 #define	_CTYPE_S	0x00004000L		/* Space */
55 #define	_CTYPE_U	0x00008000L		/* Upper */
56 #define	_CTYPE_X	0x00010000L		/* X digit */
57 #define	_CTYPE_B	0x00020000L		/* Blank */
58 #define	_CTYPE_R	0x00040000L		/* Print */
59 #define	_CTYPE_I	0x00080000L		/* Ideogram */
60 #define	_CTYPE_T	0x00100000L		/* Special */
61 #define	_CTYPE_Q	0x00200000L		/* Phonogram */
62 #define	_CTYPE_N 	0x00400000L		/* Number (superset of digit) */
63 #define	_CTYPE_SW0	0x20000000L		/* 0 width character */
64 #define	_CTYPE_SW1	0x40000000L		/* 1 width character */
65 #define	_CTYPE_SW2	0x80000000L		/* 2 width character */
66 #define	_CTYPE_SW3	0xc0000000L		/* 3 width character */
67 #define	_CTYPE_SWM	0xe0000000L		/* Mask for screen width data */
68 #define	_CTYPE_SWS	30			/* Bits to shift to get width */
69 
70 /* See comments in <sys/_types.h> about __ct_rune_t. */
71 __BEGIN_DECLS
72 unsigned long	___runetype(__ct_rune_t) __pure;
73 __ct_rune_t	___tolower(__ct_rune_t) __pure;
74 __ct_rune_t	___toupper(__ct_rune_t) __pure;
75 __END_DECLS
76 
77 /*
78  * _EXTERNALIZE_CTYPE_INLINES_ is defined in locale/nomacros.c to tell us
79  * to generate code for extern versions of all our inline functions.
80  */
81 #ifdef _EXTERNALIZE_CTYPE_INLINES_
82 #define	_USE_CTYPE_INLINE_
83 #define	static
84 #define	__inline
85 #endif
86 
87 extern int __mb_sb_limit;
88 
89 /*
90  * Use inline functions if we are allowed to and the compiler supports them.
91  */
92 #if !defined(_DONT_USE_CTYPE_INLINE_) && \
93     (defined(_USE_CTYPE_INLINE_) || defined(__GNUC__) || defined(__cplusplus))
94 
95 #include <runetype.h>
96 
97 static __inline int
98 __maskrune(__ct_rune_t _c, unsigned long _f)
99 {
100 	return ((_c < 0 || _c >= _CACHED_RUNES) ? ___runetype(_c) :
101 		_CurrentRuneLocale->__runetype[_c]) & _f;
102 }
103 
104 static __inline int
105 __sbmaskrune(__ct_rune_t _c, unsigned long _f)
106 {
107 	return (_c < 0 || _c >= __mb_sb_limit) ? 0 :
108 	       _CurrentRuneLocale->__runetype[_c] & _f;
109 }
110 
111 static __inline int
112 __istype(__ct_rune_t _c, unsigned long _f)
113 {
114 	return (!!__maskrune(_c, _f));
115 }
116 
117 static __inline int
118 __sbistype(__ct_rune_t _c, unsigned long _f)
119 {
120 	return (!!__sbmaskrune(_c, _f));
121 }
122 
123 static __inline int
124 __isctype(__ct_rune_t _c, unsigned long _f)
125 {
126 	return (_c < 0 || _c >= 128) ? 0 :
127 	       !!(_DefaultRuneLocale.__runetype[_c] & _f);
128 }
129 
130 static __inline __ct_rune_t
131 __toupper(__ct_rune_t _c)
132 {
133 	return (_c < 0 || _c >= _CACHED_RUNES) ? ___toupper(_c) :
134 	       _CurrentRuneLocale->__mapupper[_c];
135 }
136 
137 static __inline __ct_rune_t
138 __sbtoupper(__ct_rune_t _c)
139 {
140 	return (_c < 0 || _c >= __mb_sb_limit) ? _c :
141 	       _CurrentRuneLocale->__mapupper[_c];
142 }
143 
144 static __inline __ct_rune_t
145 __tolower(__ct_rune_t _c)
146 {
147 	return (_c < 0 || _c >= _CACHED_RUNES) ? ___tolower(_c) :
148 	       _CurrentRuneLocale->__maplower[_c];
149 }
150 
151 static __inline __ct_rune_t
152 __sbtolower(__ct_rune_t _c)
153 {
154 	return (_c < 0 || _c >= __mb_sb_limit) ? _c :
155 	       _CurrentRuneLocale->__maplower[_c];
156 }
157 
158 static __inline int
159 __wcwidth(__ct_rune_t _c)
160 {
161 	unsigned int _x;
162 
163 	if (_c == 0)
164 		return (0);
165 	_x = (unsigned int)__maskrune(_c, _CTYPE_SWM|_CTYPE_R);
166 	if ((_x & _CTYPE_SWM) != 0)
167 		return ((_x & _CTYPE_SWM) >> _CTYPE_SWS);
168 	return ((_x & _CTYPE_R) != 0 ? 1 : -1);
169 }
170 
171 #else /* not using inlines */
172 
173 __BEGIN_DECLS
174 int		__maskrune(__ct_rune_t, unsigned long);
175 int		__sbmaskrune(__ct_rune_t, unsigned long);
176 int		__istype(__ct_rune_t, unsigned long);
177 int		__sbistype(__ct_rune_t, unsigned long);
178 int		__isctype(__ct_rune_t, unsigned long);
179 __ct_rune_t	__toupper(__ct_rune_t);
180 __ct_rune_t	__sbtoupper(__ct_rune_t);
181 __ct_rune_t	__tolower(__ct_rune_t);
182 __ct_rune_t	__sbtolower(__ct_rune_t);
183 int		__wcwidth(__ct_rune_t);
184 __END_DECLS
185 #endif /* using inlines */
186 
187 #endif /* !__CTYPE_H_ */
188