xref: /illumos-gate/usr/src/common/util/strtolctype.h (revision 2ef9abdc)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1988 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 #ifndef	_COMMON_UTIL_CTYPE_H
31 #define	_COMMON_UTIL_CTYPE_H
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 /*
38  * This header file contains a collection of macros that the strtou?ll?
39  * functions in common/util use to test characters.  What we need is a kernel
40  * version of ctype.h.
41  */
42 
43 #if	defined(_KERNEL) && !defined(_BOOT)
44 
45 #define	isalnum(ch)	(isalpha(ch) || isdigit(ch))
46 #define	isalpha(ch)	(isupper(ch) || islower(ch))
47 #define	isdigit(ch)	((ch) >= '0' && (ch) <= '9')
48 #define	islower(ch)	((ch) >= 'a' && (ch) <= 'z')
49 #define	isspace(ch)	(((ch) == ' ') || ((ch) == '\r') || ((ch) == '\n') || \
50 			((ch) == '\t') || ((ch) == '\f'))
51 #define	isupper(ch)	((ch) >= 'A' && (ch) <= 'Z')
52 #define	isxdigit(ch)	(isdigit(ch) || ((ch) >= 'a' && (ch) <= 'f') || \
53 			((ch) >= 'A' && (ch) <= 'F'))
54 
55 #endif	/* _KERNEL && !_BOOT */
56 
57 #define	DIGIT(x)	\
58 	(isdigit(x) ? (x) - '0' : islower(x) ? (x) + 10 - 'a' : (x) + 10 - 'A')
59 
60 #define	MBASE	('z' - 'a' + 1 + 10)
61 
62 /*
63  * The following macro is a version of isalnum() that limits alphabetic
64  * characters to the ranges a-z and A-Z; locale dependent characters will not
65  * return 1.  The members of a-z and A-Z are assumed to be in ascending order
66  * and contiguous.
67  */
68 #define	lisalnum(x)	\
69 	(isdigit(x) || ((x) >= 'a' && (x) <= 'z') || ((x) >= 'A' && (x) <= 'Z'))
70 
71 #ifdef	__cplusplus
72 }
73 #endif
74 
75 #endif	/* _COMMON_UTIL_CTYPE_H */
76