/*=============================================================================
|
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_LITERAL_STRING_APR_18_2006_1125PM)
|
#define BOOST_SPIRIT_X3_LITERAL_STRING_APR_18_2006_1125PM
|
|
#include <boost/spirit/home/x3/core/parser.hpp>
|
#include <boost/spirit/home/x3/core/skip_over.hpp>
|
#include <boost/spirit/home/x3/string/detail/string_parse.hpp>
|
#include <boost/spirit/home/x3/support/no_case.hpp>
|
#include <boost/spirit/home/x3/string/detail/no_case_string_parse.hpp>
|
#include <boost/spirit/home/x3/support/utility/utf8.hpp>
|
#include <boost/spirit/home/support/char_encoding/ascii.hpp>
|
#include <boost/spirit/home/support/char_encoding/standard.hpp>
|
#include <boost/spirit/home/support/char_encoding/standard_wide.hpp>
|
|
#include <boost/type_traits/is_same.hpp>
|
#include <boost/type_traits/add_reference.hpp>
|
#include <string>
|
|
namespace boost { namespace spirit { namespace x3
|
{
|
template <typename String, typename Encoding,
|
typename Attribute = std::basic_string<typename Encoding::char_type>>
|
struct literal_string : parser<literal_string<String, Encoding, Attribute>>
|
{
|
typedef typename Encoding::char_type char_type;
|
typedef Encoding encoding;
|
typedef Attribute attribute_type;
|
static bool const has_attribute =
|
!is_same<unused_type, attribute_type>::value;
|
static bool const handles_container = has_attribute;
|
|
constexpr literal_string(typename add_reference< typename add_const<String>::type >::type str)
|
: str(str)
|
{}
|
|
template <typename Iterator, typename Context, typename Attribute_>
|
bool parse(Iterator& first, Iterator const& last
|
, Context const& context, unused_type, Attribute_& attr) const
|
{
|
x3::skip_over(first, last, context);
|
return detail::string_parse(str, first, last, attr, get_case_compare<encoding>(context));
|
}
|
|
String str;
|
};
|
|
namespace standard
|
{
|
constexpr literal_string<char const*, char_encoding::standard>
|
string(char const* s)
|
{
|
return { s };
|
}
|
|
inline literal_string<std::basic_string<char>, char_encoding::standard>
|
string(std::basic_string<char> const& s)
|
{
|
return { s };
|
}
|
|
inline constexpr literal_string<char const*, char_encoding::standard, unused_type>
|
lit(char const* s)
|
{
|
return { s };
|
}
|
|
template <typename Char>
|
literal_string<std::basic_string<Char>, char_encoding::standard, unused_type>
|
lit(std::basic_string<Char> const& s)
|
{
|
return { s };
|
}
|
}
|
|
#ifndef BOOST_SPIRIT_NO_STANDARD_WIDE
|
namespace standard_wide
|
{
|
constexpr literal_string<wchar_t const*, char_encoding::standard_wide>
|
string(wchar_t const* s)
|
{
|
return { s };
|
}
|
|
inline literal_string<std::basic_string<wchar_t>, char_encoding::standard_wide>
|
string(std::basic_string<wchar_t> const& s)
|
{
|
return { s };
|
}
|
|
constexpr literal_string<wchar_t const*, char_encoding::standard_wide, unused_type>
|
lit(wchar_t const* s)
|
{
|
return { s };
|
}
|
|
inline literal_string<std::basic_string<wchar_t>, char_encoding::standard_wide, unused_type>
|
lit(std::basic_string<wchar_t> const& s)
|
{
|
return { s };
|
}
|
}
|
#endif
|
|
#if defined(BOOST_SPIRIT_X3_UNICODE)
|
namespace unicode
|
{
|
constexpr literal_string<char32_t const*, char_encoding::unicode>
|
string(char32_t const* s)
|
{
|
return { s };
|
}
|
|
inline literal_string<std::basic_string<char32_t>, char_encoding::unicode>
|
string(std::basic_string<char32_t> const& s)
|
{
|
return { s };
|
}
|
|
constexpr literal_string<char32_t const*, char_encoding::unicode, unused_type>
|
lit(char32_t const* s)
|
{
|
return { s };
|
}
|
|
inline literal_string<std::basic_string<char32_t>, char_encoding::unicode, unused_type>
|
lit(std::basic_string<char32_t> const& s)
|
{
|
return { s };
|
}
|
}
|
#endif
|
|
namespace ascii
|
{
|
constexpr literal_string<wchar_t const*, char_encoding::ascii>
|
string(wchar_t const* s)
|
{
|
return { s };
|
}
|
|
inline literal_string<std::basic_string<wchar_t>, char_encoding::ascii>
|
string(std::basic_string<wchar_t> const& s)
|
{
|
return { s };
|
}
|
|
constexpr literal_string<char const*, char_encoding::ascii, unused_type>
|
lit(char const* s)
|
{
|
return { s };
|
}
|
|
template <typename Char>
|
literal_string<std::basic_string<Char>, char_encoding::ascii, unused_type>
|
lit(std::basic_string<Char> const& s)
|
{
|
return { s };
|
}
|
}
|
|
namespace iso8859_1
|
{
|
constexpr literal_string<wchar_t const*, char_encoding::iso8859_1>
|
string(wchar_t const* s)
|
{
|
return { s };
|
}
|
|
inline literal_string<std::basic_string<wchar_t>, char_encoding::iso8859_1>
|
string(std::basic_string<wchar_t> const& s)
|
{
|
return { s };
|
}
|
|
constexpr literal_string<char const*, char_encoding::iso8859_1, unused_type>
|
lit(char const* s)
|
{
|
return { s };
|
}
|
|
template <typename Char>
|
literal_string<std::basic_string<Char>, char_encoding::iso8859_1, unused_type>
|
lit(std::basic_string<Char> const& s)
|
{
|
return { s };
|
}
|
}
|
|
using standard::string;
|
using standard::lit;
|
#ifndef BOOST_SPIRIT_NO_STANDARD_WIDE
|
using standard_wide::string;
|
using standard_wide::lit;
|
#endif
|
|
namespace extension
|
{
|
template <int N>
|
struct as_parser<char[N]>
|
{
|
typedef literal_string<
|
char const*, char_encoding::standard, unused_type>
|
type;
|
|
typedef type value_type;
|
|
static constexpr type call(char const* s)
|
{
|
return type(s);
|
}
|
};
|
|
template <int N>
|
struct as_parser<char const[N]> : as_parser<char[N]> {};
|
|
#ifndef BOOST_SPIRIT_NO_STANDARD_WIDE
|
template <int N>
|
struct as_parser<wchar_t[N]>
|
{
|
typedef literal_string<
|
wchar_t const*, char_encoding::standard_wide, unused_type>
|
type;
|
|
typedef type value_type;
|
|
static constexpr type call(wchar_t const* s)
|
{
|
return type(s);
|
}
|
};
|
|
template <int N>
|
struct as_parser<wchar_t const[N]> : as_parser<wchar_t[N]> {};
|
#endif
|
|
template <>
|
struct as_parser<char const*>
|
{
|
typedef literal_string<
|
char const*, char_encoding::standard, unused_type>
|
type;
|
|
typedef type value_type;
|
|
static constexpr type call(char const* s)
|
{
|
return type(s);
|
}
|
};
|
|
template <typename Char>
|
struct as_parser< std::basic_string<Char> >
|
{
|
typedef literal_string<
|
Char const*, char_encoding::standard, unused_type>
|
type;
|
|
typedef type value_type;
|
|
static type call(std::basic_string<Char> const& s)
|
{
|
return type(s.c_str());
|
}
|
};
|
}
|
|
template <typename String, typename Encoding, typename Attribute>
|
struct get_info<literal_string<String, Encoding, Attribute>>
|
{
|
typedef std::string result_type;
|
std::string operator()(literal_string<String, Encoding, Attribute> const& p) const
|
{
|
return '"' + to_utf8(p.str) + '"';
|
}
|
};
|
}}}
|
|
#endif
|
