1 // Locale support -*- C++ -*-
3 // Copyright (C) 2000, 2003 Free Software Foundation, Inc.
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 2, or (at your option)
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.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING. If not, write to the Free
18 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
21 // As a special exception, you may use this file as part of a free software
22 // library without restriction. Specifically, if other files instantiate
23 // templates or use macros or inline functions from this file, or you compile
24 // this file and link it with other files to produce an executable, this
25 // file does not by itself cause the resulting executable to be covered by
26 // the GNU General Public License. This exception does not however
27 // invalidate any other reasons why the executable file might be covered by
28 // the GNU General Public License.
31 // ISO C++ 14882: 22.1 Locales
34 // ctype bits to be inlined go here. Non-inlinable (ie virtual do_*)
35 // functions go in ctype.cc
37 // The following definitions are portable, but insanely slow. If one
38 // cares at all about performance, then specialized ctype
39 // functionality should be added for the native os in question: see
40 // the config/os/bits/ctype_*.h files.
42 // Constructing a synthetic "C" table should be seriously considered...
46 is(mask __m, char __c) const
49 return _M_table[static_cast<unsigned char>(__c)] & __m;
53 const size_t __bitmasksize = 15;
54 size_t __bitcur = 0; // Lowest bitmask in ctype_base == 0
55 for (; __bitcur <= __bitmasksize; ++__bitcur)
57 const mask __bit = static_cast<mask>(1 << __bitcur);
64 __testis = isspace(__c);
67 __testis = isprint(__c);
70 __testis = iscntrl(__c);
73 __testis = isupper(__c);
76 __testis = islower(__c);
79 __testis = isalpha(__c);
82 __testis = isdigit(__c);
85 __testis = ispunct(__c);
88 __testis = isxdigit(__c);
91 __testis = isalnum(__c);
94 __testis = isgraph(__c);
109 is(const char* __low, const char* __high, mask* __vec) const
112 while (__low < __high)
113 *__vec++ = _M_table[static_cast<unsigned char>(*__low++)];
116 // Highest bitmask in ctype_base == 10.
117 const size_t __bitmasksize = 15;
118 for (;__low < __high; ++__vec, ++__low)
121 // Lowest bitmask in ctype_base == 0
123 for (;__i <= __bitmasksize; ++__i)
125 const mask __bit = static_cast<mask>(1 << __i);
126 if (this->is(__bit, *__low))
137 scan_is(mask __m, const char* __low, const char* __high) const
140 while (__low < __high
141 && !(_M_table[static_cast<unsigned char>(*__low)] & __m))
144 while (__low < __high && !this->is(__m, *__low))
151 scan_not(mask __m, const char* __low, const char* __high) const
154 while (__low < __high
155 && (_M_table[static_cast<unsigned char>(*__low)] & __m) != 0)
158 while (__low < __high && this->is(__m, *__low) != 0)