xref: /freebsd/include/ctype.h (revision ae83180158c4c937f170e31eff311b18c0286a93)
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  *	@(#)ctype.h	8.4 (Berkeley) 1/21/94
42  *      $FreeBSD$
43  */
44 
45 #ifndef _CTYPE_H_
46 #define	_CTYPE_H_
47 
48 /*
49  * XXX <runetype.h> brings massive namespace pollution (rune_t and struct
50  * member names).
51  */
52 #include <runetype.h>
53 
54 #define	_CTYPE_A	0x00000100L		/* Alpha */
55 #define	_CTYPE_C	0x00000200L		/* Control */
56 #define	_CTYPE_D	0x00000400L		/* Digit */
57 #define	_CTYPE_G	0x00000800L		/* Graph */
58 #define	_CTYPE_L	0x00001000L		/* Lower */
59 #define	_CTYPE_P	0x00002000L		/* Punct */
60 #define	_CTYPE_S	0x00004000L		/* Space */
61 #define	_CTYPE_U	0x00008000L		/* Upper */
62 #define	_CTYPE_X	0x00010000L		/* X digit */
63 #define	_CTYPE_B	0x00020000L		/* Blank */
64 #define	_CTYPE_R	0x00040000L		/* Print */
65 #define	_CTYPE_I	0x00080000L		/* Ideogram */
66 #define	_CTYPE_T	0x00100000L		/* Special */
67 #define	_CTYPE_Q	0x00200000L		/* Phonogram */
68 #define	_CTYPE_SWM	0xe0000000L		/* Mask to get screen width data */
69 #define	_CTYPE_SWS	30			/* Bits to shift to get width */
70 #define	_CTYPE_SW0	0x20000000L		/* 0 width character */
71 #define	_CTYPE_SW1	0x00000000L		/* 1 width character / default*/
72 #define	_CTYPE_SW2	0x80000000L		/* 2 width character */
73 #define	_CTYPE_SW3	0xc0000000L		/* 3 width character */
74 
75 __BEGIN_DECLS
76 int	isalnum(int);
77 int	isalpha(int);
78 int	iscntrl(int);
79 int	isdigit(int);
80 int	isgraph(int);
81 int	islower(int);
82 int	isprint(int);
83 int	ispunct(int);
84 int	isspace(int);
85 int	isupper(int);
86 int	isxdigit(int);
87 int	tolower(int);
88 int	toupper(int);
89 
90 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
91 int	digittoint(int);
92 int	isascii(int);
93 int	isblank(int);
94 int	ishexnumber(int);
95 int	isideogram(int);
96 int	isnumber(int);
97 int	isphonogram(int);
98 int	isrune(int);
99 int	isspecial(int);
100 int	toascii(int);
101 #endif
102 __END_DECLS
103 
104 #define	isalnum(c)	__istype((c), _CTYPE_A|_CTYPE_D)
105 #define	isalpha(c)	__istype((c), _CTYPE_A)
106 #define	iscntrl(c)	__istype((c), _CTYPE_C)
107 #define	isdigit(c)	__isctype((c), _CTYPE_D) /* ANSI -- locale independent */
108 #define	isgraph(c)	__istype((c), _CTYPE_G)
109 #define	islower(c)	__istype((c), _CTYPE_L)
110 #define	isprint(c)	__istype((c), _CTYPE_R)
111 #define	ispunct(c)	__istype((c), _CTYPE_P)
112 #define	isspace(c)	__istype((c), _CTYPE_S)
113 #define	isupper(c)	__istype((c), _CTYPE_U)
114 #define	isxdigit(c)	__isctype((c), _CTYPE_X) /* ANSI -- locale independent */
115 #define	tolower(c)	__tolower(c)
116 #define	toupper(c)	__toupper(c)
117 
118 #if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
119 #define	digittoint(c)	__maskrune((c), 0xFF)
120 #define	isascii(c)	(((c) & ~0x7F) == 0)
121 #define	isblank(c)	__istype((c), _CTYPE_B)
122 #define	ishexnumber(c)	__istype((c), _CTYPE_X)
123 #define	isideogram(c)	__istype((c), _CTYPE_I)
124 #define	isnumber(c)	__istype((c), _CTYPE_D)
125 #define	isphonogram(c)	__istype((c), _CTYPE_Q)
126 #define	isrune(c)	__istype((c), 0xFFFFFF00L)
127 #define	isspecial(c)	__istype((c), _CTYPE_T)
128 #define	toascii(c)	((c) & 0x7F)
129 #endif
130 
131 /* See comments in <machine/ansi.h> about _BSD_CT_RUNE_T_. */
132 __BEGIN_DECLS
133 unsigned long	___runetype(_BSD_CT_RUNE_T_);
134 _BSD_CT_RUNE_T_	___tolower(_BSD_CT_RUNE_T_);
135 _BSD_CT_RUNE_T_	___toupper(_BSD_CT_RUNE_T_);
136 __END_DECLS
137 
138 /*
139  * _EXTERNALIZE_CTYPE_INLINES_ is defined in locale/nomacros.c to tell us
140  * to generate code for extern versions of all our inline functions.
141  */
142 #ifdef _EXTERNALIZE_CTYPE_INLINES_
143 #define	_USE_CTYPE_INLINE_
144 #define	static
145 #define	__inline
146 #endif
147 
148 /*
149  * Use inline functions if we are allowed to and the compiler supports them.
150  */
151 #if !defined(_DONT_USE_CTYPE_INLINE_) && \
152     (defined(_USE_CTYPE_INLINE_) || defined(__GNUC__) || defined(__cplusplus))
153 static __inline int
154 __maskrune(_BSD_CT_RUNE_T_ _c, unsigned long _f)
155 {
156 	return ((_c < 0 || _c >= _CACHED_RUNES) ? ___runetype(_c) :
157 		_CurrentRuneLocale->runetype[_c]) & _f;
158 }
159 
160 static __inline int
161 __istype(_BSD_CT_RUNE_T_ _c, unsigned long _f)
162 {
163 	return (!!__maskrune(_c, _f));
164 }
165 
166 static __inline int
167 __isctype(_BSD_CT_RUNE_T_ _c, unsigned long _f)
168 {
169 	return (_c < 0 || _c >= _CACHED_RUNES) ? 0 :
170 	       !!(_DefaultRuneLocale.runetype[_c] & _f);
171 }
172 
173 static __inline _BSD_CT_RUNE_T_
174 __toupper(_BSD_CT_RUNE_T_ _c)
175 {
176 	return (_c < 0 || _c >= _CACHED_RUNES) ? ___toupper(_c) :
177 	       _CurrentRuneLocale->mapupper[_c];
178 }
179 
180 static __inline _BSD_CT_RUNE_T_
181 __tolower(_BSD_CT_RUNE_T_ _c)
182 {
183 	return (_c < 0 || _c >= _CACHED_RUNES) ? ___tolower(_c) :
184 	       _CurrentRuneLocale->maplower[_c];
185 }
186 
187 #else /* not using inlines */
188 
189 __BEGIN_DECLS
190 int		__maskrune(_BSD_CT_RUNE_T_, unsigned long);
191 int		__istype(_BSD_CT_RUNE_T_, unsigned long);
192 int		__isctype(_BSD_CT_RUNE_T_, unsigned long);
193 _BSD_CT_RUNE_T_	__toupper(_BSD_CT_RUNE_T_);
194 _BSD_CT_RUNE_T_	__tolower(_BSD_CT_RUNE_T_);
195 __END_DECLS
196 #endif /* using inlines */
197 
198 #endif /* !_CTYPE_H_ */
199