1 /*=============================================================================
2 Copyright (c) 2001-2003 Joel de Guzman
3 Copyright (c) 2001-2003 Daniel Nuffer
4 http://spirit.sourceforge.net/
6 Use, modification and distribution is subject to the Boost Software
7 License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
8 http://www.boost.org/LICENSE_1_0.txt)
9 =============================================================================*/
10 #ifndef BOOST_XPRESSIVE_SPIRIT_BASIC_CHSET_HPP_EAN_10_04_2005
11 #define BOOST_XPRESSIVE_SPIRIT_BASIC_CHSET_HPP_EAN_10_04_2005
13 ///////////////////////////////////////////////////////////////////////////////
15 #include <boost/mpl/bool.hpp>
16 #include <boost/xpressive/detail/utility/chset/range_run.ipp>
18 namespace boost { namespace xpressive { namespace detail
21 ///////////////////////////////////////////////////////////////////////////
23 // basic_chset: basic character set implementation using range_run
25 ///////////////////////////////////////////////////////////////////////////
26 template<typename Char>
30 basic_chset(basic_chset const &arg);
33 void set(Char from, Char to);
34 template<typename Traits>
35 void set(Char from, Char to, Traits const &tr);
37 template<typename Traits>
38 void set(Char c, Traits const &tr);
40 void clear(Char from, Char to);
41 template<typename Traits>
42 void clear(Char from, Char to, Traits const &tr);
44 template<typename Traits>
45 void clear(Char c, Traits const &tr);
48 template<typename Traits>
49 bool test(Char v, Traits const &tr, mpl::false_) const; // case-sensitive
50 template<typename Traits>
51 bool test(Char v, Traits const &tr, mpl::true_) const; // case-insensitive
54 void swap(basic_chset& x);
56 basic_chset &operator |=(basic_chset const &x);
57 basic_chset &operator &=(basic_chset const &x);
58 basic_chset &operator -=(basic_chset const &x);
59 basic_chset &operator ^=(basic_chset const &x);
67 ///////////////////////////////////////////////////////////////////////////
69 // basic_chset: specializations for 8 bit chars using std::bitset
71 ///////////////////////////////////////////////////////////////////////////
72 template<typename Char>
73 struct basic_chset_8bit
76 basic_chset_8bit(basic_chset_8bit const &arg);
80 void set(Char from, Char to);
81 template<typename Traits>
82 void set(Char from, Char to, Traits const &tr);
84 template<typename Traits>
85 void set(Char c, Traits const &tr);
87 void clear(Char from, Char to);
88 template<typename Traits>
89 void clear(Char from, Char to, Traits const &tr);
91 template<typename Traits>
92 void clear(Char c, Traits const &tr);
95 template<typename Traits>
96 bool test(Char v, Traits const &tr, mpl::false_) const; // case-sensitive
97 template<typename Traits>
98 bool test(Char v, Traits const &tr, mpl::true_) const; // case-insensitive
101 void swap(basic_chset_8bit& x);
103 basic_chset_8bit &operator |=(basic_chset_8bit const &x);
104 basic_chset_8bit &operator &=(basic_chset_8bit const &x);
105 basic_chset_8bit &operator -=(basic_chset_8bit const &x);
106 basic_chset_8bit &operator ^=(basic_chset_8bit const &x);
108 std::bitset<256> const &base() const;
111 std::bitset<256> bset_; // BUGBUG range-checking slows this down
114 /////////////////////////////////
116 struct basic_chset<char>
117 : basic_chset_8bit<char>
121 /////////////////////////////////
123 struct basic_chset<signed char>
124 : basic_chset_8bit<signed char>
128 /////////////////////////////////
130 struct basic_chset<unsigned char>
131 : basic_chset_8bit<unsigned char>
137 ///////////////////////////////////////////////////////////////////////////////
139 template<typename Char>
140 struct is_narrow_char
145 struct is_narrow_char<char>
150 struct is_narrow_char<signed char>
155 struct is_narrow_char<unsigned char>
159 ///////////////////////////////////////////////////////////////////////////////
161 template<typename Char, typename Traits>
162 void set_char(basic_chset<Char> &chset, Char ch, Traits const &tr, bool icase);
164 template<typename Char, typename Traits>
165 void set_range(basic_chset<Char> &chset, Char from, Char to, Traits const &tr, bool icase);
167 template<typename Char, typename Traits>
168 void set_class(basic_chset<Char> &chset, typename Traits::char_class_type char_class, bool no, Traits const &tr);
170 }}} // namespace boost::xpressive::detail