1 | /* Copyright (C) 1996-2018 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ |
17 | |
18 | /* |
19 | * ISO C99 Standard: 7.25 |
20 | * Wide character classification and mapping utilities <wctype.h> |
21 | */ |
22 | |
23 | #ifndef _BITS_WCTYPE_WCHAR_H |
24 | #define _BITS_WCTYPE_WCHAR_H 1 |
25 | |
26 | #if !defined _WCTYPE_H && !defined _WCHAR_H |
27 | #error "Never include <bits/wctype-wchar.h> directly; include <wctype.h> or <wchar.h> instead." |
28 | #endif |
29 | |
30 | #include <bits/types.h> |
31 | #include <bits/types/wint_t.h> |
32 | |
33 | /* The definitions in this header are specified to appear in <wctype.h> |
34 | in ISO C99, but in <wchar.h> in Unix98. _GNU_SOURCE follows C99. */ |
35 | |
36 | /* Scalar type that can hold values which represent locale-specific |
37 | character classifications. */ |
38 | typedef unsigned long int wctype_t; |
39 | |
40 | # ifndef _ISwbit |
41 | /* The characteristics are stored always in network byte order (big |
42 | endian). We define the bit value interpretations here dependent on the |
43 | machine's byte order. */ |
44 | |
45 | # include <endian.h> |
46 | # if __BYTE_ORDER == __BIG_ENDIAN |
47 | # define _ISwbit(bit) (1 << (bit)) |
48 | # else /* __BYTE_ORDER == __LITTLE_ENDIAN */ |
49 | # define _ISwbit(bit) \ |
50 | ((bit) < 8 ? (int) ((1UL << (bit)) << 24) \ |
51 | : ((bit) < 16 ? (int) ((1UL << (bit)) << 8) \ |
52 | : ((bit) < 24 ? (int) ((1UL << (bit)) >> 8) \ |
53 | : (int) ((1UL << (bit)) >> 24)))) |
54 | # endif |
55 | |
56 | enum |
57 | { |
58 | __ISwupper = 0, /* UPPERCASE. */ |
59 | __ISwlower = 1, /* lowercase. */ |
60 | __ISwalpha = 2, /* Alphabetic. */ |
61 | __ISwdigit = 3, /* Numeric. */ |
62 | __ISwxdigit = 4, /* Hexadecimal numeric. */ |
63 | __ISwspace = 5, /* Whitespace. */ |
64 | __ISwprint = 6, /* Printing. */ |
65 | __ISwgraph = 7, /* Graphical. */ |
66 | __ISwblank = 8, /* Blank (usually SPC and TAB). */ |
67 | __ISwcntrl = 9, /* Control character. */ |
68 | __ISwpunct = 10, /* Punctuation. */ |
69 | __ISwalnum = 11, /* Alphanumeric. */ |
70 | |
71 | _ISwupper = _ISwbit (__ISwupper), /* UPPERCASE. */ |
72 | _ISwlower = _ISwbit (__ISwlower), /* lowercase. */ |
73 | _ISwalpha = _ISwbit (__ISwalpha), /* Alphabetic. */ |
74 | _ISwdigit = _ISwbit (__ISwdigit), /* Numeric. */ |
75 | _ISwxdigit = _ISwbit (__ISwxdigit), /* Hexadecimal numeric. */ |
76 | _ISwspace = _ISwbit (__ISwspace), /* Whitespace. */ |
77 | _ISwprint = _ISwbit (__ISwprint), /* Printing. */ |
78 | _ISwgraph = _ISwbit (__ISwgraph), /* Graphical. */ |
79 | _ISwblank = _ISwbit (__ISwblank), /* Blank (usually SPC and TAB). */ |
80 | _ISwcntrl = _ISwbit (__ISwcntrl), /* Control character. */ |
81 | _ISwpunct = _ISwbit (__ISwpunct), /* Punctuation. */ |
82 | _ISwalnum = _ISwbit (__ISwalnum) /* Alphanumeric. */ |
83 | }; |
84 | # endif /* Not _ISwbit */ |
85 | |
86 | |
87 | __BEGIN_DECLS |
88 | |
89 | /* |
90 | * Wide-character classification functions: 7.15.2.1. |
91 | */ |
92 | |
93 | /* Test for any wide character for which `iswalpha' or `iswdigit' is |
94 | true. */ |
95 | extern int iswalnum (wint_t __wc) __THROW; |
96 | |
97 | /* Test for any wide character for which `iswupper' or 'iswlower' is |
98 | true, or any wide character that is one of a locale-specific set of |
99 | wide-characters for which none of `iswcntrl', `iswdigit', |
100 | `iswpunct', or `iswspace' is true. */ |
101 | extern int iswalpha (wint_t __wc) __THROW; |
102 | |
103 | /* Test for any control wide character. */ |
104 | extern int iswcntrl (wint_t __wc) __THROW; |
105 | |
106 | /* Test for any wide character that corresponds to a decimal-digit |
107 | character. */ |
108 | extern int iswdigit (wint_t __wc) __THROW; |
109 | |
110 | /* Test for any wide character for which `iswprint' is true and |
111 | `iswspace' is false. */ |
112 | extern int iswgraph (wint_t __wc) __THROW; |
113 | |
114 | /* Test for any wide character that corresponds to a lowercase letter |
115 | or is one of a locale-specific set of wide characters for which |
116 | none of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true. */ |
117 | extern int iswlower (wint_t __wc) __THROW; |
118 | |
119 | /* Test for any printing wide character. */ |
120 | extern int iswprint (wint_t __wc) __THROW; |
121 | |
122 | /* Test for any printing wide character that is one of a |
123 | locale-specific et of wide characters for which neither `iswspace' |
124 | nor `iswalnum' is true. */ |
125 | extern int iswpunct (wint_t __wc) __THROW; |
126 | |
127 | /* Test for any wide character that corresponds to a locale-specific |
128 | set of wide characters for which none of `iswalnum', `iswgraph', or |
129 | `iswpunct' is true. */ |
130 | extern int iswspace (wint_t __wc) __THROW; |
131 | |
132 | /* Test for any wide character that corresponds to an uppercase letter |
133 | or is one of a locale-specific set of wide character for which none |
134 | of `iswcntrl', `iswdigit', `iswpunct', or `iswspace' is true. */ |
135 | extern int iswupper (wint_t __wc) __THROW; |
136 | |
137 | /* Test for any wide character that corresponds to a hexadecimal-digit |
138 | character equivalent to that performed be the functions described |
139 | in the previous subclause. */ |
140 | extern int iswxdigit (wint_t __wc) __THROW; |
141 | |
142 | /* Test for any wide character that corresponds to a standard blank |
143 | wide character or a locale-specific set of wide characters for |
144 | which `iswalnum' is false. */ |
145 | # ifdef __USE_ISOC99 |
146 | extern int iswblank (wint_t __wc) __THROW; |
147 | # endif |
148 | |
149 | /* |
150 | * Extensible wide-character classification functions: 7.15.2.2. |
151 | */ |
152 | |
153 | /* Construct value that describes a class of wide characters identified |
154 | by the string argument PROPERTY. */ |
155 | extern wctype_t wctype (const char *__property) __THROW; |
156 | |
157 | /* Determine whether the wide-character WC has the property described by |
158 | DESC. */ |
159 | extern int iswctype (wint_t __wc, wctype_t __desc) __THROW; |
160 | |
161 | /* |
162 | * Wide-character case-mapping functions: 7.15.3.1. |
163 | */ |
164 | |
165 | /* Converts an uppercase letter to the corresponding lowercase letter. */ |
166 | extern wint_t towlower (wint_t __wc) __THROW; |
167 | |
168 | /* Converts an lowercase letter to the corresponding uppercase letter. */ |
169 | extern wint_t towupper (wint_t __wc) __THROW; |
170 | |
171 | __END_DECLS |
172 | |
173 | #endif /* bits/wctype-wchar.h. */ |
174 | |