xref: /freebsd/include/_ctype.h (revision 2b743a9e9ddc6736208dc8ca1ce06ce64ad20a19)
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. All advertising materials mentioning features or use of this software
22  *    must display the following acknowledgement:
23  *	This product includes software developed by the University of
24  *	California, Berkeley and its contributors.
25  * 4. Neither the name of the University nor the names of its contributors
26  *    may be used to endorse or promote products derived from this software
27  *    without specific prior written permission.
28  *
29  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39  * SUCH DAMAGE.
40  *
41  * From @(#)ctype.h	8.4 (Berkeley) 1/21/94
42  * From FreeBSD: src/include/ctype.h,v 1.27 2004/06/23 07:11:39 tjr Exp
43  * $FreeBSD$
44  */
45 
46 #ifndef __CTYPE_H_
47 #define	__CTYPE_H_
48 
49 #include <sys/cdefs.h>
50 #include <sys/_types.h>
51 
52 #define	_CTYPE_A	0x00000100L		/* Alpha */
53 #define	_CTYPE_C	0x00000200L		/* Control */
54 #define	_CTYPE_D	0x00000400L		/* Digit */
55 #define	_CTYPE_G	0x00000800L		/* Graph */
56 #define	_CTYPE_L	0x00001000L		/* Lower */
57 #define	_CTYPE_P	0x00002000L		/* Punct */
58 #define	_CTYPE_S	0x00004000L		/* Space */
59 #define	_CTYPE_U	0x00008000L		/* Upper */
60 #define	_CTYPE_X	0x00010000L		/* X digit */
61 #define	_CTYPE_B	0x00020000L		/* Blank */
62 #define	_CTYPE_R	0x00040000L		/* Print */
63 #define	_CTYPE_I	0x00080000L		/* Ideogram */
64 #define	_CTYPE_T	0x00100000L		/* Special */
65 #define	_CTYPE_Q	0x00200000L		/* Phonogram */
66 #define	_CTYPE_SW0	0x20000000L		/* 0 width character */
67 #define	_CTYPE_SW1	0x40000000L		/* 1 width character */
68 #define	_CTYPE_SW2	0x80000000L		/* 2 width character */
69 #define	_CTYPE_SW3	0xc0000000L		/* 3 width character */
70 #define	_CTYPE_SWM	0xe0000000L		/* Mask for screen width data */
71 #define	_CTYPE_SWS	30			/* Bits to shift to get width */
72 
73 /* See comments in <sys/_types.h> about __ct_rune_t. */
74 __BEGIN_DECLS
75 unsigned long	___runetype(__ct_rune_t) __pure;
76 __ct_rune_t	___tolower(__ct_rune_t) __pure;
77 __ct_rune_t	___toupper(__ct_rune_t) __pure;
78 __END_DECLS
79 
80 /*
81  * _EXTERNALIZE_CTYPE_INLINES_ is defined in locale/nomacros.c to tell us
82  * to generate code for extern versions of all our inline functions.
83  */
84 #ifdef _EXTERNALIZE_CTYPE_INLINES_
85 #define	_USE_CTYPE_INLINE_
86 #define	static
87 #define	__inline
88 #endif
89 
90 /*
91  * Use inline functions if we are allowed to and the compiler supports them.
92  */
93 #if !defined(_DONT_USE_CTYPE_INLINE_) && \
94     (defined(_USE_CTYPE_INLINE_) || defined(__GNUC__) || defined(__cplusplus))
95 
96 #include <runetype.h>
97 
98 static __inline int
99 __maskrune(__ct_rune_t _c, unsigned long _f)
100 {
101 	return ((_c < 0 || _c >= _CACHED_RUNES) ? ___runetype(_c) :
102 		_CurrentRuneLocale->__runetype[_c]) & _f;
103 }
104 
105 static __inline int
106 __istype(__ct_rune_t _c, unsigned long _f)
107 {
108 	return (!!__maskrune(_c, _f));
109 }
110 
111 static __inline int
112 __isctype(__ct_rune_t _c, unsigned long _f)
113 {
114 	return (_c < 0 || _c >= _CACHED_RUNES) ? 0 :
115 	       !!(_DefaultRuneLocale.__runetype[_c] & _f);
116 }
117 
118 static __inline __ct_rune_t
119 __toupper(__ct_rune_t _c)
120 {
121 	return (_c < 0 || _c >= _CACHED_RUNES) ? ___toupper(_c) :
122 	       _CurrentRuneLocale->__mapupper[_c];
123 }
124 
125 static __inline __ct_rune_t
126 __tolower(__ct_rune_t _c)
127 {
128 	return (_c < 0 || _c >= _CACHED_RUNES) ? ___tolower(_c) :
129 	       _CurrentRuneLocale->__maplower[_c];
130 }
131 
132 static __inline int
133 __wcwidth(__ct_rune_t _c)
134 {
135 	unsigned int _x;
136 
137 	if (_c == 0)
138 		return (0);
139 	_x = (unsigned int)__maskrune(_c, _CTYPE_SWM|_CTYPE_R);
140 	if ((_x & _CTYPE_SWM) != 0)
141 		return ((_x & _CTYPE_SWM) >> _CTYPE_SWS);
142 	return ((_x & _CTYPE_R) != 0 ? 1 : -1);
143 }
144 
145 #else /* not using inlines */
146 
147 __BEGIN_DECLS
148 int		__maskrune(__ct_rune_t, unsigned long);
149 int		__istype(__ct_rune_t, unsigned long);
150 int		__isctype(__ct_rune_t, unsigned long);
151 __ct_rune_t	__toupper(__ct_rune_t);
152 __ct_rune_t	__tolower(__ct_rune_t);
153 int		__wcwidth(__ct_rune_t);
154 __END_DECLS
155 #endif /* using inlines */
156 
157 #endif /* !__CTYPE_H_ */
158