1 /*
2 Copyright (c) 1991, 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 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 3. Neither the name of the University nor the names of its contributors
19 may be used to endorse or promote products derived from this software
20 without specific prior written permission.
21
22 THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 SUCH DAMAGE.
33 */
34 #ifndef _CTYPE_H_
35 #define _CTYPE_H_
36
37 #include "_ansi.h"
38 #include <sys/cdefs.h>
39 #include <limits.h>
40
41 #if __POSIX_VISIBLE >= 200809 || __MISC_VISIBLE || defined (_LIBC)
42 #include <sys/_locale.h>
43 #endif
44
45 _BEGIN_STD_C
46
47 int isalnum (int __c);
48 int isalpha (int __c);
49 int iscntrl (int __c);
50 int isdigit (int __c);
51 int isgraph (int __c);
52 int islower (int __c);
53 int isprint (int __c);
54 int ispunct (int __c);
55 int isspace (int __c);
56 int isupper (int __c);
57 int isxdigit (int __c);
58 int tolower (int __c);
59 int toupper (int __c);
60
61 #if __ISO_C_VISIBLE >= 1999
62 #ifdef _DEFINING_ISBLANK
63 int isblank(int c);
64 #else
isblank(int c)65 static __inline int isblank(int c) {
66 return c == ' ' || c == '\t';
67 }
68 #endif
69 #endif
70
71 #if __MISC_VISIBLE || __XSI_VISIBLE
72 int isascii (int __c);
73 int toascii (int __c);
74 #define _tolower(__c) ((unsigned char)(__c) - 'A' + 'a')
75 #define _toupper(__c) ((unsigned char)(__c) - 'a' + 'A')
76 #endif
77
78 #if __POSIX_VISIBLE >= 200809
79 extern int isalnum_l (int __c, locale_t __l);
80 extern int isalpha_l (int __c, locale_t __l);
81 extern int isblank_l (int __c, locale_t __l);
82 extern int iscntrl_l (int __c, locale_t __l);
83 extern int isdigit_l (int __c, locale_t __l);
84 extern int isgraph_l (int __c, locale_t __l);
85 extern int islower_l (int __c, locale_t __l);
86 extern int isprint_l (int __c, locale_t __l);
87 extern int ispunct_l (int __c, locale_t __l);
88 extern int isspace_l (int __c, locale_t __l);
89 extern int isupper_l (int __c, locale_t __l);
90 extern int isxdigit_l(int __c, locale_t __l);
91 extern int tolower_l (int __c, locale_t __l);
92 extern int toupper_l (int __c, locale_t __l);
93 #endif
94
95 #if __MISC_VISIBLE
96 extern int isascii_l (int __c, locale_t __l);
97 extern int toascii_l (int __c, locale_t __l);
98 #endif
99
100 #define _U 01
101 #define _L 02
102 #define _N 04
103 #define _S 010
104 #define _P 020
105 #define _C 040
106 #define _X 0100
107 #define _B 0200
108
109 #if CHAR_MIN == SCHAR_MIN
110 #define ALLOW_NEGATIVE_CTYPE_INDEX
111 #endif
112
113 #if defined(ALLOW_NEGATIVE_CTYPE_INDEX)
114 extern __IMPORT const char _ctype_b[];
115 #define _ctype_ (_ctype_b + 127)
116 #else
117 extern __IMPORT const char _ctype_[];
118 #endif
119
120 #ifdef __HAVE_LOCALE_INFO__
121 const char *__locale_ctype_ptr (void);
122 #else
123 #define __locale_ctype_ptr() _ctype_
124 #endif
125
126 # define __CTYPE_PTR (__locale_ctype_ptr ())
127
128 #ifndef __cplusplus
__ctype_lookup(int c)129 static __inline char __ctype_lookup(int c) { return (__CTYPE_PTR + 1)[c]; }
130
131 #define isalpha(__c) (__ctype_lookup(__c)&(_U|_L))
132 #define isupper(__c) ((__ctype_lookup(__c)&(_U|_L))==_U)
133 #define islower(__c) ((__ctype_lookup(__c)&(_U|_L))==_L)
134 #define isdigit(__c) (__ctype_lookup(__c)&_N)
135 #define isxdigit(__c) (__ctype_lookup(__c)&(_X|_N))
136 #define isspace(__c) (__ctype_lookup(__c)&_S)
137 #define ispunct(__c) (__ctype_lookup(__c)&_P)
138 #define isalnum(__c) (__ctype_lookup(__c)&(_U|_L|_N))
139 #define isprint(__c) (__ctype_lookup(__c)&(_P|_U|_L|_N|_B))
140 #define isgraph(__c) (__ctype_lookup(__c)&(_P|_U|_L|_N))
141 #define iscntrl(__c) (__ctype_lookup(__c)&_C)
142
143 #if __POSIX_VISIBLE >= 200809
144 #ifdef __HAVE_LOCALE_INFO__
145 const char *__locale_ctype_ptr_l (locale_t);
146 #else
147 static __inline const char *
__locale_ctype_ptr_l(locale_t _l)148 __locale_ctype_ptr_l(locale_t _l)
149 {
150 (void)_l;
151 return __locale_ctype_ptr();
152 }
153 #endif
154
__ctype_lookup_l(int c,locale_t l)155 static __inline char __ctype_lookup_l(int c, locale_t l) {
156 return (__locale_ctype_ptr_l(l)+1)[(int)(c)];
157 }
158
159 #define isalpha_l(__c,__l) (__ctype_lookup_l(__c,__l)&(_U|_L))
160 #define isupper_l(__c,__l) ((__ctype_lookup_l(__c,__l)&(_U|_L))==_U)
161 #define islower_l(__c,__l) ((__ctype_lookup_l(__c,__l)&(_U|_L))==_L)
162 #define isdigit_l(__c,__l) (__ctype_lookup_l(__c,__l)&_N)
163 #define isxdigit_l(__c,__l) (__ctype_lookup_l(__c,__l)&(_X|_N))
164 #define isspace_l(__c,__l) (__ctype_lookup_l(__c,__l)&_S)
165 #define ispunct_l(__c,__l) (__ctype_lookup_l(__c,__l)&_P)
166 #define isalnum_l(__c,__l) (__ctype_lookup_l(__c,__l)&(_U|_L|_N))
167 #define isprint_l(__c,__l) (__ctype_lookup_l(__c,__l)&(_P|_U|_L|_N|_B))
168 #define isgraph_l(__c,__l) (__ctype_lookup_l(__c,__l)&(_P|_U|_L|_N))
169 #define iscntrl_l(__c,__l) (__ctype_lookup_l(__c,__l)&_C)
170
171 #if defined(__GNUC__)
172 #define isblank_l(__c, __l) \
173 __extension__ ({ __typeof__ (__c) __x = (__c); \
174 (__ctype_lookup_l(__x,__l)&_B) || (int) (__x) == '\t';})
175 #endif
176
177 #endif /* __POSIX_VISIBLE >= 200809 */
178
179 #if __MISC_VISIBLE || __XSI_VISIBLE
180 #define isascii(__c) ((unsigned)(__c)<=0177)
181 #define toascii(__c) ((__c)&0177)
182 #endif
183
184 #if __MISC_VISIBLE
185 #define isascii_l(__c,__l) ((__l),(unsigned)(__c)<=0177)
186 #define toascii_l(__c,__l) ((__l),(__c)&0177)
187 #endif
188
189 /* Non-gcc versions will get the library versions, and will be
190 slightly slower. These macros are not NLS-aware so they are
191 disabled if the system supports the extended character sets. */
192 # if defined(__GNUC__)
193 # if !defined (_MB_EXTENDED_CHARSETS_ISO) && !defined (_MB_EXTENDED_CHARSETS_WINDOWS)
194 # define toupper(__c) \
195 __extension__ ({ __typeof__ (__c) __x = (__c); \
196 islower (__x) ? (int) __x - 'a' + 'A' : (int) __x;})
197 # define tolower(__c) \
198 __extension__ ({ __typeof__ (__c) __x = (__c); \
199 isupper (__x) ? (int) __x - 'A' + 'a' : (int) __x;})
200 # else /* _MB_EXTENDED_CHARSETS* */
201 /* Allow a gcc warning if the user passed 'char', but defer to the
202 function. */
203 # define toupper(__c) \
204 __extension__ ({ __typeof__ (__c) __x = (__c); \
205 (void) __CTYPE_PTR[__x]; (toupper) (__x);})
206 # define tolower(__c) \
207 __extension__ ({ __typeof__ (__c) __x = (__c); \
208 (void) __CTYPE_PTR[__x]; (tolower) (__x);})
209 # endif /* _MB_EXTENDED_CHARSETS* */
210 # endif /* __GNUC__ */
211
212 #if __POSIX_VISIBLE >= 200809
213 #endif /* __POSIX_VISIBLE >= 200809 */
214
215 #endif /* !__cplusplus */
216
217 _END_STD_C
218
219 #endif /* _CTYPE_H_ */
220
