/*============================================================================= | |
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 |