1// Locale support -*- C++ -*- 2 3// Copyright (C) 2002 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 2, 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// 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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 19// USA. 20 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. 29 30/** @file ctype_inline.h 31 * This is an internal header file, included by other library headers. 32 * You should not attempt to use it directly. 33 */ 34 35// 36// ISO C++ 14882: 22.1 Locales 37// 38 39// ctype bits to be inlined go here. Non-inlinable (ie virtual do_*) 40// functions go in ctype.cc 41 42// The following definitions are portable, but insanely slow. If one 43// cares at all about performance, then specialized ctype 44// functionality should be added for the native os in question: see 45// the config/os/bits/ctype_*.h files. 46 47_GLIBCXX_BEGIN_NAMESPACE(std) 48 49 bool 50 ctype<char>:: 51 is(mask __m, char __c) const 52 { 53 bool __ret; 54 switch (__m) 55 { 56 case space: 57 __ret = isspace(__c); 58 break; 59 case print: 60 __ret = isprint(__c); 61 break; 62 case cntrl: 63 __ret = iscntrl(__c); 64 break; 65 case upper: 66 __ret = isupper(__c); 67 break; 68 case lower: 69 __ret = islower(__c); 70 break; 71 case alpha: 72 __ret = isalpha(__c); 73 break; 74 case digit: 75 __ret = isdigit(__c); 76 break; 77 case punct: 78 __ret = ispunct(__c); 79 break; 80 case xdigit: 81 __ret = isxdigit(__c); 82 break; 83 case alnum: 84 __ret = isalnum(__c); 85 break; 86 case graph: 87 __ret = isgraph(__c); 88 break; 89 default: 90 __ret = false; 91 break; 92 } 93 return __ret; 94 } 95 96 const char* 97 ctype<char>:: 98 is(const char* __low, const char* __high, mask* __vec) const 99 { 100 const int __bitmasksize = 11; // Highest bitmask in ctype_base == 10 101 for (;__low < __high; ++__vec, ++__low) 102 { 103 mask __m = 0; 104 int __i = 0; // Lowest bitmask in ctype_base == 0 105 for (;__i < __bitmasksize; ++__i) 106 { 107 mask __bit = static_cast<mask>(1 << __i); 108 if (this->is(__bit, *__low)) 109 __m |= __bit; 110 } 111 *__vec = __m; 112 } 113 return __high; 114 } 115 116 const char* 117 ctype<char>:: 118 scan_is(mask __m, const char* __low, const char* __high) const 119 { 120 while (__low < __high && !this->is(__m, *__low)) 121 ++__low; 122 return __low; 123 } 124 125 const char* 126 ctype<char>:: 127 scan_not(mask __m, const char* __low, const char* __high) const 128 { 129 while (__low < __high && this->is(__m, *__low) != 0) 130 ++__low; 131 return __low; 132 } 133 134_GLIBCXX_END_NAMESPACE 135