1 // Locale support -*- C++ -*-
2
3 // Copyright (C) 2000-2022 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
24
25 /** @file bits/ctype_inline.h
26 * This is an internal header file, included by other library headers.
27 * Do not attempt to use it directly. @headername{locale}
28 */
29
30 //
31 // ISO C++ 14882: 22.1 Locales
32 //
33
34 // ctype bits to be inlined go here. Non-inlinable (ie virtual do_*)
35 // functions go in ctype.cc
36
_GLIBCXX_VISIBILITY(default)37 namespace std _GLIBCXX_VISIBILITY(default)
38 {
39 _GLIBCXX_BEGIN_NAMESPACE_VERSION
40
41 bool
42 ctype<char>::
43 is(mask __m, char __c) const
44 {
45 if (_M_table)
46 return _M_table[static_cast<unsigned char>(__c)] & __m;
47 else
48 return __istype(__c, __m);
49 }
50
51 const char*
52 ctype<char>::
53 is(const char* __low, const char* __high, mask* __vec) const
54 {
55 if (_M_table)
56 while (__low < __high)
57 *__vec++ = _M_table[static_cast<unsigned char>(*__low++)];
58 else
59 for (;__low < __high; ++__vec, ++__low)
60 {
61 #if defined (_CTYPE_S) || defined (__istype)
62 *__vec = __maskrune (*__low, upper | lower | alpha | digit | xdigit
63 | space | print | graph | cntrl | punct | alnum
64 | blank);
65 #else
66 mask __m = 0;
67 if (this->is(upper, *__low)) __m |= upper;
68 if (this->is(lower, *__low)) __m |= lower;
69 if (this->is(alpha, *__low)) __m |= alpha;
70 if (this->is(digit, *__low)) __m |= digit;
71 if (this->is(xdigit, *__low)) __m |= xdigit;
72 if (this->is(space, *__low)) __m |= space;
73 if (this->is(print, *__low)) __m |= print;
74 if (this->is(graph, *__low)) __m |= graph;
75 if (this->is(cntrl, *__low)) __m |= cntrl;
76 if (this->is(punct, *__low)) __m |= punct;
77 // Do not include explicit line for alnum mask since it is a
78 // pure composite of masks on FreeBSD.
79 if (this->is(blank, *__low)) __m |= blank;
80 *__vec = __m;
81 #endif
82 }
83 return __high;
84 }
85
86 const char*
87 ctype<char>::
88 scan_is(mask __m, const char* __low, const char* __high) const
89 {
90 if (_M_table)
91 while (__low < __high
92 && !(_M_table[static_cast<unsigned char>(*__low)] & __m))
93 ++__low;
94 else
95 while (__low < __high && !this->is(__m, *__low))
96 ++__low;
97 return __low;
98 }
99
100 const char*
101 ctype<char>::
102 scan_not(mask __m, const char* __low, const char* __high) const
103 {
104 if (_M_table)
105 while (__low < __high
106 && (_M_table[static_cast<unsigned char>(*__low)] & __m) != 0)
107 ++__low;
108 else
109 while (__low < __high && this->is(__m, *__low) != 0)
110 ++__low;
111 return __low;
112 }
113
114 #ifdef _GLIBCXX_USE_WCHAR_T
115 inline bool
116 ctype<wchar_t>::
117 do_is(mask __m, wchar_t __c) const
118 {
119 return __istype (__c, __m);
120 }
121
122 inline const wchar_t*
123 ctype<wchar_t>::
124 do_is(const wchar_t* __lo, const wchar_t* __hi, mask* __vec) const
125 {
126 for (; __lo < __hi; ++__vec, ++__lo)
127 *__vec = __maskrune (*__lo, upper | lower | alpha | digit | xdigit
128 | space | print | graph | cntrl | punct | alnum
129 | blank);
130 return __hi;
131 }
132
133 inline const wchar_t*
134 ctype<wchar_t>::
135 do_scan_is(mask __m, const wchar_t* __lo, const wchar_t* __hi) const
136 {
137 while (__lo < __hi && ! __istype (*__lo, __m))
138 ++__lo;
139 return __lo;
140 }
141
142 inline const wchar_t*
143 ctype<wchar_t>::
144 do_scan_not(mask __m, const char_type* __lo, const char_type* __hi) const
145 {
146 while (__lo < __hi && __istype (*__lo, __m))
147 ++__lo;
148 return __lo;
149 }
150 #endif
151
152 _GLIBCXX_END_NAMESPACE_VERSION
153 } // namespace
154