| /*============================================================================= |
| Copyright (c) 2001-2003 Joel de Guzman |
| Copyright (c) 2001-2003 Daniel Nuffer |
| http://spirit.sourceforge.net/ |
| |
| Use, modification and distribution is subject to the Boost Software |
| License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| http://www.boost.org/LICENSE_1_0.txt) |
| =============================================================================*/ |
| #ifndef BOOST_XPRESSIVE_SPIRIT_BASIC_CHSET_HPP_EAN_10_04_2005 |
| #define BOOST_XPRESSIVE_SPIRIT_BASIC_CHSET_HPP_EAN_10_04_2005 |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| #include <bitset> |
| #include <boost/mpl/bool.hpp> |
| #include <boost/xpressive/detail/utility/chset/range_run.ipp> |
| |
| namespace boost { namespace xpressive { namespace detail |
| { |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // |
| // basic_chset: basic character set implementation using range_run |
| // |
| /////////////////////////////////////////////////////////////////////////// |
| template<typename Char> |
| struct basic_chset |
| { |
| basic_chset(); |
| basic_chset(basic_chset const &arg); |
| |
| bool empty() const; |
| void set(Char from, Char to); |
| template<typename Traits> |
| void set(Char from, Char to, Traits const &tr); |
| void set(Char c); |
| template<typename Traits> |
| void set(Char c, Traits const &tr); |
| |
| void clear(Char from, Char to); |
| template<typename Traits> |
| void clear(Char from, Char to, Traits const &tr); |
| void clear(Char c); |
| template<typename Traits> |
| void clear(Char c, Traits const &tr); |
| void clear(); |
| |
| template<typename Traits> |
| bool test(Char v, Traits const &tr, mpl::false_) const; // case-sensitive |
| template<typename Traits> |
| bool test(Char v, Traits const &tr, mpl::true_) const; // case-insensitive |
| |
| void inverse(); |
| void swap(basic_chset& x); |
| |
| basic_chset &operator |=(basic_chset const &x); |
| basic_chset &operator &=(basic_chset const &x); |
| basic_chset &operator -=(basic_chset const &x); |
| basic_chset &operator ^=(basic_chset const &x); |
| |
| private: |
| range_run<Char> rr_; |
| }; |
| |
| #if(CHAR_BIT == 8) |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // |
| // basic_chset: specializations for 8 bit chars using std::bitset |
| // |
| /////////////////////////////////////////////////////////////////////////// |
| template<typename Char> |
| struct basic_chset_8bit |
| { |
| basic_chset_8bit(); |
| basic_chset_8bit(basic_chset_8bit const &arg); |
| |
| bool empty() const; |
| |
| void set(Char from, Char to); |
| template<typename Traits> |
| void set(Char from, Char to, Traits const &tr); |
| void set(Char c); |
| template<typename Traits> |
| void set(Char c, Traits const &tr); |
| |
| void clear(Char from, Char to); |
| template<typename Traits> |
| void clear(Char from, Char to, Traits const &tr); |
| void clear(Char c); |
| template<typename Traits> |
| void clear(Char c, Traits const &tr); |
| void clear(); |
| |
| template<typename Traits> |
| bool test(Char v, Traits const &tr, mpl::false_) const; // case-sensitive |
| template<typename Traits> |
| bool test(Char v, Traits const &tr, mpl::true_) const; // case-insensitive |
| |
| void inverse(); |
| void swap(basic_chset_8bit& x); |
| |
| basic_chset_8bit &operator |=(basic_chset_8bit const &x); |
| basic_chset_8bit &operator &=(basic_chset_8bit const &x); |
| basic_chset_8bit &operator -=(basic_chset_8bit const &x); |
| basic_chset_8bit &operator ^=(basic_chset_8bit const &x); |
| |
| std::bitset<256> const &base() const; |
| |
| private: |
| std::bitset<256> bset_; // BUGBUG range-checking slows this down |
| }; |
| |
| ///////////////////////////////// |
| template<> |
| struct basic_chset<char> |
| : basic_chset_8bit<char> |
| { |
| }; |
| |
| ///////////////////////////////// |
| template<> |
| struct basic_chset<signed char> |
| : basic_chset_8bit<signed char> |
| { |
| }; |
| |
| ///////////////////////////////// |
| template<> |
| struct basic_chset<unsigned char> |
| : basic_chset_8bit<unsigned char> |
| { |
| }; |
| |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // is_narrow_char |
| template<typename Char> |
| struct is_narrow_char |
| : mpl::false_ |
| {}; |
| |
| template<> |
| struct is_narrow_char<char> |
| : mpl::true_ |
| {}; |
| |
| template<> |
| struct is_narrow_char<signed char> |
| : mpl::true_ |
| {}; |
| |
| template<> |
| struct is_narrow_char<unsigned char> |
| : mpl::true_ |
| {}; |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // helpers |
| template<typename Char, typename Traits> |
| void set_char(basic_chset<Char> &chset, Char ch, Traits const &tr, bool icase); |
| |
| template<typename Char, typename Traits> |
| void set_range(basic_chset<Char> &chset, Char from, Char to, Traits const &tr, bool icase); |
| |
| template<typename Char, typename Traits> |
| void set_class(basic_chset<Char> &chset, typename Traits::char_class_type char_class, bool no, Traits const &tr); |
| |
| }}} // namespace boost::xpressive::detail |
| |
| #endif |