63 lines
2.3 KiB
C++
63 lines
2.3 KiB
C++
/*=============================================================================
|
|
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_INT_APR_17_2006_0830AM)
|
|
#define BOOST_SPIRIT_X3_INT_APR_17_2006_0830AM
|
|
|
|
#include <boost/spirit/home/x3/core/parser.hpp>
|
|
#include <boost/spirit/home/x3/core/skip_over.hpp>
|
|
#include <boost/spirit/home/x3/support/numeric_utils/extract_int.hpp>
|
|
#include <cstdint>
|
|
|
|
namespace boost { namespace spirit { namespace x3
|
|
{
|
|
///////////////////////////////////////////////////////////////////////////
|
|
template <
|
|
typename T
|
|
, unsigned Radix = 10
|
|
, unsigned MinDigits = 1
|
|
, int MaxDigits = -1>
|
|
struct int_parser : parser<int_parser<T, Radix, MinDigits, MaxDigits>>
|
|
{
|
|
// check template parameter 'Radix' for validity
|
|
static_assert(
|
|
(Radix == 2 || Radix == 8 || Radix == 10 || Radix == 16),
|
|
"Error Unsupported Radix");
|
|
|
|
typedef T attribute_type;
|
|
static bool const has_attribute = true;
|
|
|
|
template <typename Iterator, typename Context, typename Attribute>
|
|
bool parse(Iterator& first, Iterator const& last
|
|
, Context const& context, unused_type, Attribute& attr) const
|
|
{
|
|
typedef extract_int<T, Radix, MinDigits, MaxDigits> extract;
|
|
x3::skip_over(first, last, context);
|
|
return extract::call(first, last, attr);
|
|
}
|
|
};
|
|
|
|
#define BOOST_SPIRIT_X3_INT_PARSER(int_type, name) \
|
|
typedef int_parser<int_type> name##type; \
|
|
constexpr name##type name = {}; \
|
|
/***/
|
|
|
|
BOOST_SPIRIT_X3_INT_PARSER(long, long_)
|
|
BOOST_SPIRIT_X3_INT_PARSER(short, short_)
|
|
BOOST_SPIRIT_X3_INT_PARSER(int, int_)
|
|
BOOST_SPIRIT_X3_INT_PARSER(long long, long_long)
|
|
|
|
BOOST_SPIRIT_X3_INT_PARSER(int8_t, int8)
|
|
BOOST_SPIRIT_X3_INT_PARSER(int16_t, int16)
|
|
BOOST_SPIRIT_X3_INT_PARSER(int32_t, int32)
|
|
BOOST_SPIRIT_X3_INT_PARSER(int64_t, int64)
|
|
|
|
#undef BOOST_SPIRIT_X3_INT_PARSER
|
|
|
|
}}}
|
|
|
|
#endif
|