1*404b540aSrobert // Locale support -*- C++ -*-
2*404b540aSrobert
3*404b540aSrobert // Copyright (C) 2000, 2003 Free Software Foundation, Inc.
4*404b540aSrobert //
5*404b540aSrobert // This file is part of the GNU ISO C++ Library. This library is free
6*404b540aSrobert // software; you can redistribute it and/or modify it under the
7*404b540aSrobert // terms of the GNU General Public License as published by the
8*404b540aSrobert // Free Software Foundation; either version 2, or (at your option)
9*404b540aSrobert // any later version.
10*404b540aSrobert
11*404b540aSrobert // This library is distributed in the hope that it will be useful,
12*404b540aSrobert // but WITHOUT ANY WARRANTY; without even the implied warranty of
13*404b540aSrobert // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14*404b540aSrobert // GNU General Public License for more details.
15*404b540aSrobert
16*404b540aSrobert // You should have received a copy of the GNU General Public License along
17*404b540aSrobert // with this library; see the file COPYING. If not, write to the Free
18*404b540aSrobert // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
19*404b540aSrobert // USA.
20*404b540aSrobert
21*404b540aSrobert // As a special exception, you may use this file as part of a free software
22*404b540aSrobert // library without restriction. Specifically, if other files instantiate
23*404b540aSrobert // templates or use macros or inline functions from this file, or you compile
24*404b540aSrobert // this file and link it with other files to produce an executable, this
25*404b540aSrobert // file does not by itself cause the resulting executable to be covered by
26*404b540aSrobert // the GNU General Public License. This exception does not however
27*404b540aSrobert // invalidate any other reasons why the executable file might be covered by
28*404b540aSrobert // the GNU General Public License.
29*404b540aSrobert
30*404b540aSrobert /** @file ctype_inline.h
31*404b540aSrobert * This is an internal header file, included by other library headers.
32*404b540aSrobert * You should not attempt to use it directly.
33*404b540aSrobert */
34*404b540aSrobert
35*404b540aSrobert //
36*404b540aSrobert // ISO C++ 14882: 22.1 Locales
37*404b540aSrobert //
38*404b540aSrobert
39*404b540aSrobert // ctype bits to be inlined go here. Non-inlinable (ie virtual do_*)
40*404b540aSrobert // functions go in ctype.cc
41*404b540aSrobert
42*404b540aSrobert // The following definitions are portable, but insanely slow. If one
43*404b540aSrobert // cares at all about performance, then specialized ctype
44*404b540aSrobert // functionality should be added for the native os in question: see
45*404b540aSrobert // the config/os/bits/ctype_*.h files.
46*404b540aSrobert
47*404b540aSrobert // Constructing a synthetic "C" table should be seriously considered...
48*404b540aSrobert
_GLIBCXX_BEGIN_NAMESPACE(std)49*404b540aSrobert _GLIBCXX_BEGIN_NAMESPACE(std)
50*404b540aSrobert
51*404b540aSrobert bool
52*404b540aSrobert ctype<char>::
53*404b540aSrobert is(mask __m, char __c) const
54*404b540aSrobert {
55*404b540aSrobert if (_M_table)
56*404b540aSrobert return _M_table[static_cast<unsigned char>(__c)] & __m;
57*404b540aSrobert else
58*404b540aSrobert {
59*404b540aSrobert bool __ret = false;
60*404b540aSrobert const size_t __bitmasksize = 15;
61*404b540aSrobert size_t __bitcur = 0; // Lowest bitmask in ctype_base == 0
62*404b540aSrobert for (; __bitcur <= __bitmasksize; ++__bitcur)
63*404b540aSrobert {
64*404b540aSrobert const mask __bit = static_cast<mask>(1 << __bitcur);
65*404b540aSrobert if (__m & __bit)
66*404b540aSrobert {
67*404b540aSrobert bool __testis;
68*404b540aSrobert switch (__bit)
69*404b540aSrobert {
70*404b540aSrobert case space:
71*404b540aSrobert __testis = isspace(__c);
72*404b540aSrobert break;
73*404b540aSrobert case print:
74*404b540aSrobert __testis = isprint(__c);
75*404b540aSrobert break;
76*404b540aSrobert case cntrl:
77*404b540aSrobert __testis = iscntrl(__c);
78*404b540aSrobert break;
79*404b540aSrobert case upper:
80*404b540aSrobert __testis = isupper(__c);
81*404b540aSrobert break;
82*404b540aSrobert case lower:
83*404b540aSrobert __testis = islower(__c);
84*404b540aSrobert break;
85*404b540aSrobert case alpha:
86*404b540aSrobert __testis = isalpha(__c);
87*404b540aSrobert break;
88*404b540aSrobert case digit:
89*404b540aSrobert __testis = isdigit(__c);
90*404b540aSrobert break;
91*404b540aSrobert case punct:
92*404b540aSrobert __testis = ispunct(__c);
93*404b540aSrobert break;
94*404b540aSrobert case xdigit:
95*404b540aSrobert __testis = isxdigit(__c);
96*404b540aSrobert break;
97*404b540aSrobert case alnum:
98*404b540aSrobert __testis = isalnum(__c);
99*404b540aSrobert break;
100*404b540aSrobert case graph:
101*404b540aSrobert __testis = isgraph(__c);
102*404b540aSrobert break;
103*404b540aSrobert default:
104*404b540aSrobert __testis = false;
105*404b540aSrobert break;
106*404b540aSrobert }
107*404b540aSrobert __ret |= __testis;
108*404b540aSrobert }
109*404b540aSrobert }
110*404b540aSrobert return __ret;
111*404b540aSrobert }
112*404b540aSrobert }
113*404b540aSrobert
114*404b540aSrobert const char*
115*404b540aSrobert ctype<char>::
is(const char * __low,const char * __high,mask * __vec)116*404b540aSrobert is(const char* __low, const char* __high, mask* __vec) const
117*404b540aSrobert {
118*404b540aSrobert if (_M_table)
119*404b540aSrobert while (__low < __high)
120*404b540aSrobert *__vec++ = _M_table[static_cast<unsigned char>(*__low++)];
121*404b540aSrobert else
122*404b540aSrobert {
123*404b540aSrobert // Highest bitmask in ctype_base == 10.
124*404b540aSrobert const size_t __bitmasksize = 15;
125*404b540aSrobert for (;__low < __high; ++__vec, ++__low)
126*404b540aSrobert {
127*404b540aSrobert mask __m = 0;
128*404b540aSrobert // Lowest bitmask in ctype_base == 0
129*404b540aSrobert size_t __i = 0;
130*404b540aSrobert for (;__i <= __bitmasksize; ++__i)
131*404b540aSrobert {
132*404b540aSrobert const mask __bit = static_cast<mask>(1 << __i);
133*404b540aSrobert if (this->is(__bit, *__low))
134*404b540aSrobert __m |= __bit;
135*404b540aSrobert }
136*404b540aSrobert *__vec = __m;
137*404b540aSrobert }
138*404b540aSrobert }
139*404b540aSrobert return __high;
140*404b540aSrobert }
141*404b540aSrobert
142*404b540aSrobert const char*
143*404b540aSrobert ctype<char>::
scan_is(mask __m,const char * __low,const char * __high)144*404b540aSrobert scan_is(mask __m, const char* __low, const char* __high) const
145*404b540aSrobert {
146*404b540aSrobert if (_M_table)
147*404b540aSrobert while (__low < __high
148*404b540aSrobert && !(_M_table[static_cast<unsigned char>(*__low)] & __m))
149*404b540aSrobert ++__low;
150*404b540aSrobert else
151*404b540aSrobert while (__low < __high && !this->is(__m, *__low))
152*404b540aSrobert ++__low;
153*404b540aSrobert return __low;
154*404b540aSrobert }
155*404b540aSrobert
156*404b540aSrobert const char*
157*404b540aSrobert ctype<char>::
scan_not(mask __m,const char * __low,const char * __high)158*404b540aSrobert scan_not(mask __m, const char* __low, const char* __high) const
159*404b540aSrobert {
160*404b540aSrobert if (_M_table)
161*404b540aSrobert while (__low < __high
162*404b540aSrobert && (_M_table[static_cast<unsigned char>(*__low)] & __m) != 0)
163*404b540aSrobert ++__low;
164*404b540aSrobert else
165*404b540aSrobert while (__low < __high && this->is(__m, *__low) != 0)
166*404b540aSrobert ++__low;
167*404b540aSrobert return __low;
168*404b540aSrobert }
169*404b540aSrobert
170*404b540aSrobert _GLIBCXX_END_NAMESPACE
171