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: / usr / include / boost / spirit / home / x3 / char /
Filename : any_char.hpp
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/*=============================================================================
    Copyright (c) 2001-2014 Joel de Guzman

    Distributed under 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)
==============================================================================*/
#if !defined(BOOST_SPIRIT_X3_ANY_CHAR_APRIL_16_2006_1051AM)
#define BOOST_SPIRIT_X3_ANY_CHAR_APRIL_16_2006_1051AM

#include <boost/type_traits/extent.hpp>
#include <boost/spirit/home/x3/char/literal_char.hpp>
#include <boost/spirit/home/x3/char/char_set.hpp>

namespace boost { namespace spirit { namespace x3
{
    template <typename Encoding>
    struct any_char : char_parser<any_char<Encoding>>
    {
        typedef typename Encoding::char_type char_type;
        typedef Encoding encoding;
        typedef char_type attribute_type;
        static bool const has_attribute = true;

        template <typename Char, typename Context>
        bool test(Char ch_, Context const&) const
        {
            return encoding::ischar(ch_);
        }

        template <typename Char>
        constexpr literal_char<Encoding> operator()(Char ch) const
        {
            return { ch };
        }

        template <typename Char>
        constexpr literal_char<Encoding> operator()(const Char (&ch)[2]) const
        {
            return { ch[0] };
        }

        template <typename Char, std::size_t N>
        constexpr char_set<Encoding> operator()(const Char (&ch)[N]) const
        {
            return { ch };
        }

        template <typename Char>
        constexpr char_range<Encoding> operator()(Char from, Char to) const
        {
            return { from, to };
        }

        template <typename Char>
        constexpr char_range<Encoding> operator()(Char (&from)[2], Char (&to)[2]) const
        {
            return { static_cast<char_type>(from[0]), static_cast<char_type>(to[0]) };
        }

        template <typename Char>
        char_set<Encoding> operator()(std::basic_string<Char> const& s) const
        {
            return { s };
        }
    };
}}}

#endif