kernel: Adjust some comments to the unionfs removal.
[dragonfly.git] / include / ctype.h
CommitLineData
984263bc 1/*
0d5acd74
JM
2 * Copyright (c) 1989, 1993
3 * The Regents of the University of California. All rights reserved.
984263bc
MD
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 *
0d5acd74
JM
10 * This code is derived from software contributed to Berkeley by
11 * Paul Borman at Krystal Technologies.
12 *
984263bc
MD
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.
32a7b49a 21 * 3. Neither the name of the University nor the names of its contributors
984263bc
MD
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 *
0d5acd74
JM
37 * @(#)ctype.h 8.4 (Berkeley) 1/21/94
38 * $FreeBSD: head/include/ctype.h 233600 2012-03-28 12:11:54Z theraven $
984263bc
MD
39 */
40
41#ifndef _CTYPE_H_
32a7b49a 42#define _CTYPE_H_
984263bc 43
32a7b49a 44#include <sys/cdefs.h>
0d5acd74
JM
45#include <sys/types.h>
46
47#define _CTYPE_A 0x00000100L /* Alpha */
48#define _CTYPE_C 0x00000200L /* Control */
49#define _CTYPE_D 0x00000400L /* Digit */
50#define _CTYPE_G 0x00000800L /* Graph */
51#define _CTYPE_L 0x00001000L /* Lower */
52#define _CTYPE_P 0x00002000L /* Punct */
53#define _CTYPE_S 0x00004000L /* Space */
54#define _CTYPE_U 0x00008000L /* Upper */
55#define _CTYPE_X 0x00010000L /* X digit */
56#define _CTYPE_B 0x00020000L /* Blank */
57#define _CTYPE_R 0x00040000L /* Print */
58#define _CTYPE_I 0x00080000L /* Ideogram */
59#define _CTYPE_T 0x00100000L /* Special */
60#define _CTYPE_Q 0x00200000L /* Phonogram */
31c9f6f2 61#define _CTYPE_N 0x00400000L /* Number (superset of digit) */
0d5acd74
JM
62#define _CTYPE_SW0 0x20000000L /* 0 width character */
63#define _CTYPE_SW1 0x40000000L /* 1 width character */
64#define _CTYPE_SW2 0x80000000L /* 2 width character */
65#define _CTYPE_SW3 0xc0000000L /* 3 width character */
66#define _CTYPE_SWM 0xe0000000L /* Mask for screen width data */
67#define _CTYPE_SWS 30 /* Bits to shift to get width */
68
69/* See comments in <sys/_types.h> about __ct_rune_t. */
70__BEGIN_DECLS
71unsigned long ___runetype(__ct_rune_t) __pure;
72__ct_rune_t ___tolower(__ct_rune_t) __pure;
73__ct_rune_t ___toupper(__ct_rune_t) __pure;
74__END_DECLS
75
76/*
77 * _EXTERNALIZE_CTYPE_INLINES_ is defined in locale/nomacros.c to tell us
78 * to generate code for extern versions of all our inline functions.
79 */
80#ifdef _EXTERNALIZE_CTYPE_INLINES_
81#define _USE_CTYPE_INLINE_
82#define static
83#define __inline
84#endif
85
86extern int __mb_sb_limit;
87
88/*
89 * Use inline functions if we are allowed to and the compiler supports them.
90 */
91#if !defined(_DONT_USE_CTYPE_INLINE_) && \
92 (defined(_USE_CTYPE_INLINE_) || defined(__GNUC__) || defined(__cplusplus))
93
94#include <runetype.h>
95
96static __inline int
97__maskrune(__ct_rune_t _c, unsigned long _f)
98{
99 return ((_c < 0 || _c >= _CACHED_RUNES) ? ___runetype(_c) :
100 _CurrentRuneLocale->__runetype[_c]) & _f;
101}
102
103static __inline int
104__sbmaskrune(__ct_rune_t _c, unsigned long _f)
105{
106 return (_c < 0 || _c >= __mb_sb_limit) ? 0 :
107 _CurrentRuneLocale->__runetype[_c] & _f;
108}
109
110static __inline int
111__istype(__ct_rune_t _c, unsigned long _f)
112{
113 return (!!__maskrune(_c, _f));
114}
115
116static __inline int
117__sbistype(__ct_rune_t _c, unsigned long _f)
118{
119 return (!!__sbmaskrune(_c, _f));
120}
121
122static __inline int
123__isctype(__ct_rune_t _c, unsigned long _f)
124{
125 return (_c < 0 || _c >= 128) ? 0 :
126 !!(_DefaultRuneLocale.__runetype[_c] & _f);
127}
128
129static __inline __ct_rune_t
130__toupper(__ct_rune_t _c)
131{
132 return (_c < 0 || _c >= _CACHED_RUNES) ? ___toupper(_c) :
133 _CurrentRuneLocale->__mapupper[_c];
134}
135
136static __inline __ct_rune_t
137__sbtoupper(__ct_rune_t _c)
138{
139 return (_c < 0 || _c >= __mb_sb_limit) ? _c :
140 _CurrentRuneLocale->__mapupper[_c];
141}
142
143static __inline __ct_rune_t
144__tolower(__ct_rune_t _c)
145{
146 return (_c < 0 || _c >= _CACHED_RUNES) ? ___tolower(_c) :
147 _CurrentRuneLocale->__maplower[_c];
148}
149
150static __inline __ct_rune_t
151__sbtolower(__ct_rune_t _c)
152{
153 return (_c < 0 || _c >= __mb_sb_limit) ? _c :
154 _CurrentRuneLocale->__maplower[_c];
155}
156
157static __inline int
158__wcwidth(__ct_rune_t _c)
159{
160 unsigned int _x;
161
162 if (_c == 0)
163 return (0);
164 _x = (unsigned int)__maskrune(_c, _CTYPE_SWM|_CTYPE_R);
165 if ((_x & _CTYPE_SWM) != 0)
166 return ((_x & _CTYPE_SWM) >> _CTYPE_SWS);
167 return ((_x & _CTYPE_R) != 0 ? 1 : -1);
168}
169
170#else /* not using inlines */
171
172__BEGIN_DECLS
173int __maskrune(__ct_rune_t, unsigned long);
174int __sbmaskrune(__ct_rune_t, unsigned long);
175int __istype(__ct_rune_t, unsigned long);
176int __sbistype(__ct_rune_t, unsigned long);
177int __isctype(__ct_rune_t, unsigned long);
178__ct_rune_t __toupper(__ct_rune_t);
179__ct_rune_t __sbtoupper(__ct_rune_t);
180__ct_rune_t __tolower(__ct_rune_t);
181__ct_rune_t __sbtolower(__ct_rune_t);
182int __wcwidth(__ct_rune_t);
183__END_DECLS
184#endif /* using inlines */
185
984263bc
MD
186
187__BEGIN_DECLS
32a7b49a
JS
188int isalnum(int);
189int isalpha(int);
190int iscntrl(int);
191int isdigit(int);
192int isgraph(int);
193int islower(int);
194int isprint(int);
195int ispunct(int);
196int isspace(int);
197int isupper(int);
198int isxdigit(int);
199int tolower(int);
200int toupper(int);
201
0d5acd74 202#if __XSI_VISIBLE
32a7b49a
JS
203int isascii(int);
204int toascii(int);
984263bc 205#endif
984263bc 206
0d5acd74 207#if __ISO_C_VISIBLE >= 1999
32a7b49a 208int isblank(int);
984263bc 209#endif
984263bc 210
0d5acd74
JM
211#if __BSD_VISIBLE
212int digittoint(int);
213int ishexnumber(int);
214int isideogram(int);
215int isnumber(int);
216int isphonogram(int);
217int isrune(int);
218int isspecial(int);
b30a327b
MD
219#endif
220
0d5acd74
JM
221#if __POSIX_VISIBLE >= 200809 || defined(_XLOCALE_H_)
222#include <xlocale/_ctype.h>
223#endif
224__END_DECLS
b30a327b 225
0d5acd74 226#ifndef __cplusplus
2f5f51ea 227#define isalnum(c) __sbistype((c), _CTYPE_A|_CTYPE_D|_CTYPE_N)
0d5acd74
JM
228#define isalpha(c) __sbistype((c), _CTYPE_A)
229#define iscntrl(c) __sbistype((c), _CTYPE_C)
31c9f6f2 230#define isdigit(c) __sbistype((c), _CTYPE_D)
0d5acd74
JM
231#define isgraph(c) __sbistype((c), _CTYPE_G)
232#define islower(c) __sbistype((c), _CTYPE_L)
233#define isprint(c) __sbistype((c), _CTYPE_R)
234#define ispunct(c) __sbistype((c), _CTYPE_P)
235#define isspace(c) __sbistype((c), _CTYPE_S)
236#define isupper(c) __sbistype((c), _CTYPE_U)
31c9f6f2 237#define isxdigit(c) __sbistype((c), _CTYPE_X)
0d5acd74
JM
238#define tolower(c) __sbtolower(c)
239#define toupper(c) __sbtoupper(c)
240#endif /* !__cplusplus */
b30a327b 241
0d5acd74
JM
242#if __XSI_VISIBLE
243/*
244 * POSIX.1-2001 specifies _tolower() and _toupper() to be macros equivalent to
245 * tolower() and toupper() respectively, minus extra checking to ensure that
246 * the argument is a lower or uppercase letter respectively. We've chosen to
247 * implement these macros with the same error checking as tolower() and
248 * toupper() since this doesn't violate the specification itself, only its
249 * intent. We purposely leave _tolower() and _toupper() undocumented to
250 * discourage their use.
251 *
252 * XXX isascii() and toascii() should similarly be undocumented.
253 */
254#define _tolower(c) __sbtolower(c)
255#define _toupper(c) __sbtoupper(c)
256#define isascii(c) (((c) & ~0x7F) == 0)
257#define toascii(c) ((c) & 0x7F)
b30a327b
MD
258#endif
259
0d5acd74
JM
260#if __ISO_C_VISIBLE >= 1999 && !defined(__cplusplus)
261#define isblank(c) __sbistype((c), _CTYPE_B)
984263bc
MD
262#endif
263
0d5acd74
JM
264#if __BSD_VISIBLE
265#define digittoint(c) __sbmaskrune((c), 0xFF)
266#define ishexnumber(c) __sbistype((c), _CTYPE_X)
267#define isideogram(c) __sbistype((c), _CTYPE_I)
2f5f51ea 268#define isnumber(c) __sbistype((c), _CTYPE_D|_CTYPE_N)
0d5acd74
JM
269#define isphonogram(c) __sbistype((c), _CTYPE_Q)
270#define isrune(c) __sbistype((c), 0xFFFFFF00L)
271#define isspecial(c) __sbistype((c), _CTYPE_T)
32a7b49a 272#endif
984263bc
MD
273
274#endif /* !_CTYPE_H_ */