| /*============================================================================= |
| Copyright (c) 2001-2010 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(SPIRIT_UINT_APR_17_2006_0901AM) |
| #define SPIRIT_UINT_APR_17_2006_0901AM |
| |
| #if defined(_MSC_VER) |
| #pragma once |
| #endif |
| |
| #include <boost/spirit/home/qi/skip_over.hpp> |
| #include <boost/spirit/home/qi/numeric/numeric_utils.hpp> |
| #include <boost/spirit/home/qi/meta_compiler.hpp> |
| #include <boost/spirit/home/qi/parser.hpp> |
| #include <boost/spirit/home/support/common_terminals.hpp> |
| #include <boost/spirit/home/support/info.hpp> |
| #include <boost/mpl/assert.hpp> |
| |
| namespace boost { namespace spirit |
| { |
| /////////////////////////////////////////////////////////////////////////// |
| // Enablers |
| /////////////////////////////////////////////////////////////////////////// |
| template <> |
| struct use_terminal<qi::domain, tag::bin> // enables bin |
| : mpl::true_ {}; |
| |
| template <> |
| struct use_terminal<qi::domain, tag::oct> // enables oct |
| : mpl::true_ {}; |
| |
| template <> |
| struct use_terminal<qi::domain, tag::hex> // enables hex |
| : mpl::true_ {}; |
| |
| template <> |
| struct use_terminal<qi::domain, tag::ushort_> // enables ushort_ |
| : mpl::true_ {}; |
| |
| template <> |
| struct use_terminal<qi::domain, tag::ulong_> // enables ulong_ |
| : mpl::true_ {}; |
| |
| template <> |
| struct use_terminal<qi::domain, tag::uint_> // enables uint_ |
| : mpl::true_ {}; |
| |
| #ifdef BOOST_HAS_LONG_LONG |
| template <> |
| struct use_terminal<qi::domain, tag::ulong_long> // enables ulong_long |
| : mpl::true_ {}; |
| #endif |
| }} |
| |
| namespace boost { namespace spirit { namespace qi |
| { |
| using spirit::bin; |
| using spirit::bin_type; |
| using spirit::oct; |
| using spirit::oct_type; |
| using spirit::hex; |
| using spirit::hex_type; |
| using spirit::ushort_; |
| using spirit::ushort__type; |
| using spirit::ulong_; |
| using spirit::ulong__type; |
| using spirit::uint_; |
| using spirit::uint__type; |
| #ifdef BOOST_HAS_LONG_LONG |
| using spirit::ulong_long; |
| using spirit::ulong_long_type; |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // This actual unsigned int parser |
| /////////////////////////////////////////////////////////////////////////// |
| template < |
| typename T |
| , unsigned Radix = 10 |
| , unsigned MinDigits = 1 |
| , int MaxDigits = -1> |
| struct uint_parser_impl |
| : primitive_parser<uint_parser_impl<T, Radix, MinDigits, MaxDigits> > |
| { |
| // check template parameter 'Radix' for validity |
| BOOST_SPIRIT_ASSERT_MSG( |
| Radix == 2 || Radix == 8 || Radix == 10 || Radix == 16, |
| not_supported_radix, ()); |
| |
| template <typename Context, typename Iterator> |
| struct attribute |
| { |
| typedef T type; |
| }; |
| |
| template <typename Iterator, typename Context |
| , typename Skipper, typename Attribute> |
| bool parse(Iterator& first, Iterator const& last |
| , Context& /*context*/, Skipper const& skipper |
| , Attribute& attr) const |
| { |
| qi::skip_over(first, last, skipper); |
| return extract_uint<T, Radix, MinDigits, MaxDigits> |
| ::call(first, last, attr); |
| } |
| |
| template <typename Context> |
| info what(Context& /*context*/) const |
| { |
| return info("unsigned-integer"); |
| } |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // uint_parser is the class that the user can instantiate directly |
| /////////////////////////////////////////////////////////////////////////// |
| template < |
| typename T |
| , unsigned Radix = 10 |
| , unsigned MinDigits = 1 |
| , int MaxDigits = -1> |
| struct uint_parser |
| : proto::terminal<uint_parser_impl<T, Radix, MinDigits, MaxDigits> >::type |
| { |
| }; |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // Parser generators: make_xxx function (objects) |
| /////////////////////////////////////////////////////////////////////////// |
| template < |
| typename T |
| , unsigned Radix = 10 |
| , unsigned MinDigits = 1 |
| , int MaxDigits = -1> |
| struct make_uint |
| { |
| typedef uint_parser_impl<T, Radix, MinDigits, MaxDigits> result_type; |
| result_type operator()(unused_type, unused_type) const |
| { |
| return result_type(); |
| } |
| }; |
| |
| template <typename Modifiers> |
| struct make_primitive<tag::bin, Modifiers> |
| : make_uint<unsigned, 2, 1, -1> {}; |
| |
| template <typename Modifiers> |
| struct make_primitive<tag::oct, Modifiers> |
| : make_uint<unsigned, 8, 1, -1> {}; |
| |
| template <typename Modifiers> |
| struct make_primitive<tag::hex, Modifiers> |
| : make_uint<unsigned, 16, 1, -1> {}; |
| |
| template <typename Modifiers> |
| struct make_primitive<tag::ushort_, Modifiers> |
| : make_uint<unsigned short> {}; |
| |
| template <typename Modifiers> |
| struct make_primitive<tag::ulong_, Modifiers> |
| : make_uint<unsigned long> {}; |
| |
| template <typename Modifiers> |
| struct make_primitive<tag::uint_, Modifiers> |
| : make_uint<unsigned int> {}; |
| |
| #ifdef BOOST_HAS_LONG_LONG |
| template <typename Modifiers> |
| struct make_primitive<tag::ulong_long, Modifiers> |
| : make_uint<boost::ulong_long_type> {}; |
| #endif |
| }}} |
| |
| #endif |