1 /* <ctype.h> replacement macros.
3 Copyright (C) 2000 Free Software Foundation, Inc.
4 Contributed by Zack Weinberg <zackw@stanford.edu>.
6 This file is part of the libiberty library.
7 Libiberty is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public
9 License as published by the Free Software Foundation; either
10 version 2 of the License, or (at your option) any later version.
12 Libiberty is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
17 You should have received a copy of the GNU Library General Public
18 License along with libiberty; see the file COPYING.LIB. If
19 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite
20 Boston, MA 02111-1307, USA.
22 In addition, as a special exception, the Free Software Foundation
23 gives permission to link the code of its release of Wget with the
24 OpenSSL project's "OpenSSL" library (or with modified versions of it
25 that use the same license as the "OpenSSL" library), and distribute
26 the linked executables. You must obey the GNU General Public License
27 in all respects for all of the code used other than "OpenSSL". If you
28 modify this file, you may extend this exception to your version of the
29 file, but you are not obligated to do so. If you do not wish to do
30 so, delete this exception statement from your version. */
32 /* This is a compatible replacement of the standard C library's <ctype.h>
33 with the following properties:
35 - Implements all isxxx() macros required by C99.
36 - Also implements some character classes useful when
37 parsing C-like languages.
38 - Does not change behavior depending on the current locale.
39 - Behaves properly for all values in the range of a signed or
42 To avoid conflicts, this header defines the isxxx functions in upper
43 case, e.g. ISALPHA not isalpha. */
48 /* Catch erroneous use of ctype macros. Files that really know what
49 they're doing can disable this check by defining the
50 I_REALLY_WANT_CTYPE_MACROS preprocessor constant. */
52 #ifndef I_REALLY_WANT_CTYPE_MACROS
55 #define isalpha *** Please use ISALPHA ***
57 #define isalnum *** Please use ISALNUM ***
59 #define isblank *** Please use ISBLANK ***
61 #define iscntrl *** Please use ISCNTRL ***
63 #define isdigit *** Please use ISDIGIT ***
65 #define isgraph *** Please use ISGRAPH ***
67 #define islower *** Please use ISLOWER ***
69 #define isprint *** Please use ISPRINT ***
71 #define ispunct *** Please use ISPUNCT ***
73 #define isspace *** Please use ISSPACE ***
75 #define isupper *** Please use ISUPPER ***
77 #define isxdigit *** Please use ISXDIGIT ***
79 #endif /* I_REALLY_WANT_CTYPE_MACROS */
85 _sch_isblank = 0x0001, /* space \t */
86 _sch_iscntrl = 0x0002, /* nonprinting characters */
87 _sch_isdigit = 0x0004, /* 0-9 */
88 _sch_islower = 0x0008, /* a-z */
89 _sch_isprint = 0x0010, /* any printing character including ' ' */
90 _sch_ispunct = 0x0020, /* all punctuation */
91 _sch_isspace = 0x0040, /* space \t \n \r \f \v */
92 _sch_isupper = 0x0080, /* A-Z */
93 _sch_isxdigit = 0x0100, /* 0-9A-Fa-f */
95 /* Extra categories useful to cpplib. */
96 _sch_isidst = 0x0200, /* A-Za-z_ */
97 _sch_isvsp = 0x0400, /* \n \r */
98 _sch_isnvsp = 0x0800, /* space \t \f \v \0 */
100 /* Combinations of the above. */
101 _sch_isalpha = _sch_isupper|_sch_islower, /* A-Za-z */
102 _sch_isalnum = _sch_isalpha|_sch_isdigit, /* A-Za-z0-9 */
103 _sch_isidnum = _sch_isidst|_sch_isdigit, /* A-Za-z0-9_ */
104 _sch_isgraph = _sch_isalnum|_sch_ispunct, /* isprint and not space */
105 _sch_iscppsp = _sch_isvsp|_sch_isnvsp /* isspace + \0 */
108 /* Character classification. */
109 extern const unsigned short _sch_istable[256];
111 #define _sch_test(c, bit) (_sch_istable[(c) & 0xff] & (bit))
113 #define ISALPHA(c) _sch_test(c, _sch_isalpha)
114 #define ISALNUM(c) _sch_test(c, _sch_isalnum)
115 #define ISBLANK(c) _sch_test(c, _sch_isblank)
116 #define ISCNTRL(c) _sch_test(c, _sch_iscntrl)
117 #define ISDIGIT(c) _sch_test(c, _sch_isdigit)
118 #define ISGRAPH(c) _sch_test(c, _sch_isgraph)
119 #define ISLOWER(c) _sch_test(c, _sch_islower)
120 #define ISPRINT(c) _sch_test(c, _sch_isprint)
121 #define ISPUNCT(c) _sch_test(c, _sch_ispunct)
122 #define ISSPACE(c) _sch_test(c, _sch_isspace)
123 #define ISUPPER(c) _sch_test(c, _sch_isupper)
124 #define ISXDIGIT(c) _sch_test(c, _sch_isxdigit)
126 #define ISIDNUM(c) _sch_test(c, _sch_isidnum)
127 #define ISIDST(c) _sch_test(c, _sch_isidst)
128 #define IS_VSPACE(c) _sch_test(c, _sch_isvsp)
129 #define IS_NVSPACE(c) _sch_test(c, _sch_isnvsp)
130 #define IS_SPACE_OR_NUL(c) _sch_test(c, _sch_iscppsp)
132 /* Character transformation. */
133 extern const unsigned char _sch_toupper[256];
134 extern const unsigned char _sch_tolower[256];
135 #define TOUPPER(c) _sch_toupper[(c) & 0xff]
136 #define TOLOWER(c) _sch_tolower[(c) & 0xff]
138 #endif /* SAFE_CTYPE_H */