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- /*=============================================================================
- Copyright (c) 2001-2011 Joel de Guzman
- Copyright (c) 2011 Bryce Lelbach
- Copyright (c) 2011 Jan Frederick Eick
- 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)
- ==============================================================================*/
- #ifndef BOOST_SPIRIT_QI_NUMERIC_UINT_HPP
- #define BOOST_SPIRIT_QI_NUMERIC_UINT_HPP
- #if defined(_MSC_VER)
- #pragma once
- #endif
- #include <boost/spirit/home/qi/skip_over.hpp>
- #include <boost/spirit/home/qi/detail/enable_lit.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/spirit/home/support/detail/is_spirit_tag.hpp>
- #include <boost/mpl/assert.hpp>
- #include <boost/type_traits/is_same.hpp>
- namespace boost { namespace spirit
- {
- namespace tag
- {
- template <typename T, unsigned Radix, unsigned MinDigits
- , int MaxDigits>
- struct uint_parser
- {
- BOOST_SPIRIT_IS_TAG()
- };
- }
- namespace qi
- {
- ///////////////////////////////////////////////////////////////////////
- // This one is the class that the user can instantiate directly in
- // order to create a customized int parser
- template <typename T = int, unsigned Radix = 10, unsigned MinDigits = 1
- , int MaxDigits = -1>
- struct uint_parser
- : spirit::terminal<tag::uint_parser<T, Radix, MinDigits, MaxDigits> >
- {};
- }
- ///////////////////////////////////////////////////////////////////////////
- // Enablers
- ///////////////////////////////////////////////////////////////////////////
- template <> // enables ushort_
- struct use_terminal<qi::domain, tag::ushort_> : mpl::true_ {};
- template <typename A0> // enables lit(n)
- struct use_terminal<qi::domain
- , terminal_ex<tag::lit, fusion::vector1<A0> >
- , typename enable_if<is_same<A0, unsigned short> >::type>
- : mpl::true_ {};
- template <typename A0> // enables ushort_(n)
- struct use_terminal<qi::domain
- , terminal_ex<tag::ushort_, fusion::vector1<A0> > >
- : is_arithmetic<A0> {};
- template <> // enables *lazy* ushort_(n)
- struct use_lazy_terminal<qi::domain, tag::ushort_, 1> : mpl::true_ {};
- ///////////////////////////////////////////////////////////////////////////
- template <> // enables uint_
- struct use_terminal<qi::domain, tag::uint_> : mpl::true_ {};
- template <typename A0> // enables lit(n)
- struct use_terminal<qi::domain
- , terminal_ex<tag::lit, fusion::vector1<A0> >
- , typename enable_if<is_same<A0, unsigned> >::type>
- : mpl::true_ {};
- template <typename A0> // enables uint_(n)
- struct use_terminal<qi::domain
- , terminal_ex<tag::uint_, fusion::vector1<A0> > >
- : is_arithmetic<A0> {};
- template <> // enables *lazy* uint_(n)
- struct use_lazy_terminal<qi::domain, tag::uint_, 1> : mpl::true_ {};
- ///////////////////////////////////////////////////////////////////////////
- template <> // enables ulong_
- struct use_terminal<qi::domain, tag::ulong_> : mpl::true_ {};
- template <typename A0> // enables lit(n)
- struct use_terminal<qi::domain
- , terminal_ex<tag::lit, fusion::vector1<A0> >
- , typename enable_if<is_same<A0, unsigned long> >::type>
- : mpl::true_ {};
- template <typename A0> // enables ulong_(n)
- struct use_terminal<qi::domain
- , terminal_ex<tag::ulong_, fusion::vector1<A0> > >
- : is_arithmetic<A0> {};
- template <> // enables *lazy* ulong_(n)
- struct use_lazy_terminal<qi::domain, tag::ulong_, 1> : mpl::true_ {};
- ///////////////////////////////////////////////////////////////////////////
- #ifdef BOOST_HAS_LONG_LONG
- template <> // enables ulong_long
- struct use_terminal<qi::domain, tag::ulong_long> : mpl::true_ {};
- template <typename A0> // enables lit(n)
- struct use_terminal<qi::domain
- , terminal_ex<tag::lit, fusion::vector1<A0> >
- , typename enable_if<is_same<A0, boost::ulong_long_type> >::type>
- : mpl::true_ {};
- template <typename A0> // enables ulong_long(n)
- struct use_terminal<qi::domain
- , terminal_ex<tag::ulong_long, fusion::vector1<A0> > >
- : is_arithmetic<A0> {};
- template <> // enables *lazy* ulong_long(n)
- struct use_lazy_terminal<qi::domain, tag::ulong_long, 1> : mpl::true_ {};
- #endif
- ///////////////////////////////////////////////////////////////////////////
- template <> // enables bin
- struct use_terminal<qi::domain, tag::bin> : mpl::true_ {};
- template <typename A0> // enables bin(n)
- struct use_terminal<qi::domain
- , terminal_ex<tag::bin, fusion::vector1<A0> > >
- : is_arithmetic<A0> {};
- template <> // enables *lazy* bin(n)
- struct use_lazy_terminal<qi::domain, tag::bin, 1> : mpl::true_ {};
- ///////////////////////////////////////////////////////////////////////////
- template <> // enables oct
- struct use_terminal<qi::domain, tag::oct> : mpl::true_ {};
- template <typename A0> // enables oct(n)
- struct use_terminal<qi::domain
- , terminal_ex<tag::oct, fusion::vector1<A0> > >
- : is_arithmetic<A0> {};
- template <> // enables *lazy* oct(n)
- struct use_lazy_terminal<qi::domain, tag::oct, 1> : mpl::true_ {};
- ///////////////////////////////////////////////////////////////////////////
- template <> // enables hex
- struct use_terminal<qi::domain, tag::hex> : mpl::true_ {};
- template <typename A0> // enables hex(n)
- struct use_terminal<qi::domain
- , terminal_ex<tag::hex, fusion::vector1<A0> > >
- : is_arithmetic<A0> {};
- template <> // enables *lazy* hex(n)
- struct use_lazy_terminal<qi::domain, tag::hex, 1> : mpl::true_ {};
- ///////////////////////////////////////////////////////////////////////////
- // enables any custom uint_parser
- template <typename T, unsigned Radix, unsigned MinDigits
- , int MaxDigits>
- struct use_terminal<qi::domain
- , tag::uint_parser<T, Radix, MinDigits, MaxDigits> >
- : mpl::true_ {};
- // enables any custom uint_parser(n)
- template <typename T, unsigned Radix, unsigned MinDigits
- , int MaxDigits, typename A0>
- struct use_terminal<qi::domain
- , terminal_ex<tag::uint_parser<T, Radix, MinDigits, MaxDigits>
- , fusion::vector1<A0> >
- > : mpl::true_ {};
- // enables *lazy* custom uint_parser(n)
- template <typename T, unsigned Radix, unsigned MinDigits
- , int MaxDigits>
- struct use_lazy_terminal<qi::domain
- , tag::uint_parser<T, Radix, MinDigits, MaxDigits>, 1
- > : mpl::true_ {};
- }}
- namespace boost { namespace spirit { namespace qi
- {
- #ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
- using spirit::bin;
- using spirit::oct;
- using spirit::hex;
- using spirit::ushort_;
- using spirit::uint_;
- using spirit::ulong_;
- #ifdef BOOST_HAS_LONG_LONG
- using spirit::ulong_long;
- #endif
- using spirit::lit; // lit(1) is equivalent to 1
- #endif
- using spirit::bin_type;
- using spirit::oct_type;
- using spirit::hex_type;
- using spirit::ushort_type;
- using spirit::uint_type;
- using spirit::ulong_type;
- #ifdef BOOST_HAS_LONG_LONG
- using spirit::ulong_long_type;
- #endif
- using spirit::lit_type;
- ///////////////////////////////////////////////////////////////////////////
- // This is the actual uint parser
- ///////////////////////////////////////////////////////////////////////////
- template <typename T, unsigned Radix = 10, unsigned MinDigits = 1
- , int MaxDigits = -1>
- struct any_uint_parser
- : primitive_parser<any_uint_parser<T, Radix, MinDigits, MaxDigits> >
- {
- // check template parameter 'Radix' for validity
- BOOST_SPIRIT_ASSERT_MSG(
- Radix >= 2 && Radix <= 36,
- 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
- {
- typedef extract_uint<T, Radix, MinDigits, MaxDigits> extract;
- qi::skip_over(first, last, skipper);
- return extract::call(first, last, attr_);
- }
- template <typename Context>
- info what(Context& /*context*/) const
- {
- return info("unsigned-integer");
- }
- };
- //]
- template <typename T, unsigned Radix = 10, unsigned MinDigits = 1
- , int MaxDigits = -1, bool no_attribute = true>
- struct literal_uint_parser
- : primitive_parser<literal_uint_parser<T, Radix, MinDigits, MaxDigits
- , no_attribute> >
- {
- // check template parameter 'Radix' for validity
- BOOST_SPIRIT_ASSERT_MSG(
- Radix == 2 || Radix == 8 || Radix == 10 || Radix == 16,
- not_supported_radix, ());
- template <typename Value>
- literal_uint_parser(Value const& n) : n_(n) {}
- template <typename Context, typename Iterator>
- struct attribute
- : mpl::if_c<no_attribute, unused_type, T>
- {};
- template <typename Iterator, typename Context
- , typename Skipper, typename Attribute>
- bool parse(Iterator& first, Iterator const& last
- , Context& /*context*/, Skipper const& skipper
- , Attribute& attr_param) const
- {
- typedef extract_uint<T, Radix, MinDigits, MaxDigits> extract;
- qi::skip_over(first, last, skipper);
- Iterator save = first;
- T attr_;
- if (extract::call(first, last, attr_) && (attr_ == n_))
- {
- traits::assign_to(attr_, attr_param);
- return true;
- }
- first = save;
- return false;
- }
- template <typename Context>
- info what(Context& /*context*/) const
- {
- return info("unsigned-integer");
- }
- T n_;
- };
- ///////////////////////////////////////////////////////////////////////////
- // Parser generators: make_xxx function (objects)
- ///////////////////////////////////////////////////////////////////////////
- template <typename T, unsigned Radix = 10, unsigned MinDigits = 1
- , int MaxDigits = -1>
- struct make_uint
- {
- typedef any_uint_parser<T, Radix, MinDigits, MaxDigits> result_type;
- result_type operator()(unused_type, unused_type) const
- {
- return result_type();
- }
- };
- template <typename T, unsigned Radix = 10, unsigned MinDigits = 1
- , int MaxDigits = -1>
- struct make_direct_uint
- {
- typedef literal_uint_parser<T, Radix, MinDigits, MaxDigits, false>
- result_type;
- template <typename Terminal>
- result_type operator()(Terminal const& term, unused_type) const
- {
- return result_type(fusion::at_c<0>(term.args));
- }
- };
- template <typename T, unsigned Radix = 10, unsigned MinDigits = 1
- , int MaxDigits = -1>
- struct make_literal_uint
- {
- typedef literal_uint_parser<T, Radix, MinDigits, MaxDigits> result_type;
- template <typename Terminal>
- result_type operator()(Terminal const& term, unused_type) const
- {
- return result_type(fusion::at_c<0>(term.args));
- }
- };
- ///////////////////////////////////////////////////////////////////////////
- template <typename Modifiers, typename A0>
- struct make_primitive<
- terminal_ex<tag::lit, fusion::vector1<A0> >
- , Modifiers, typename enable_if<is_same<A0, unsigned short> >::type>
- : make_literal_uint<unsigned short> {};
- template <typename Modifiers, typename A0>
- struct make_primitive<
- terminal_ex<tag::lit, fusion::vector1<A0> >
- , Modifiers, typename enable_if<is_same<A0, unsigned> >::type>
- : make_literal_uint<unsigned> {};
- template <typename Modifiers, typename A0>
- struct make_primitive<
- terminal_ex<tag::lit, fusion::vector1<A0> >
- , Modifiers, typename enable_if<is_same<A0, unsigned long> >::type>
- : make_literal_uint<unsigned long> {};
- #ifdef BOOST_HAS_LONG_LONG
- template <typename Modifiers, typename A0>
- struct make_primitive<
- terminal_ex<tag::lit, fusion::vector1<A0> >
- , Modifiers, typename enable_if<is_same<A0, boost::ulong_long_type> >::type>
- : make_literal_uint<boost::ulong_long_type> {};
- #endif
- ///////////////////////////////////////////////////////////////////////////
- template <typename T, unsigned Radix, unsigned MinDigits, int MaxDigits
- , typename Modifiers>
- struct make_primitive<
- tag::uint_parser<T, Radix, MinDigits, MaxDigits>
- , Modifiers>
- : make_uint<T, Radix, MinDigits, MaxDigits> {};
- template <typename T, unsigned Radix, unsigned MinDigits, int MaxDigits
- , typename A0, typename Modifiers>
- struct make_primitive<
- terminal_ex<tag::uint_parser<T, Radix, MinDigits, MaxDigits>
- , fusion::vector1<A0> >, Modifiers>
- : make_direct_uint<T, Radix, MinDigits, MaxDigits> {};
- ///////////////////////////////////////////////////////////////////////////
- template <typename Modifiers>
- struct make_primitive<tag::bin, Modifiers>
- : make_uint<unsigned, 2> {};
- template <typename Modifiers, typename A0>
- struct make_primitive<
- terminal_ex<tag::bin
- , fusion::vector1<A0> > , Modifiers>
- : make_direct_uint<unsigned, 2> {};
- ///////////////////////////////////////////////////////////////////////////
- template <typename Modifiers>
- struct make_primitive<tag::oct, Modifiers>
- : make_uint<unsigned, 8> {};
- template <typename Modifiers, typename A0>
- struct make_primitive<
- terminal_ex<tag::oct
- , fusion::vector1<A0> > , Modifiers>
- : make_direct_uint<unsigned, 8> {};
- ///////////////////////////////////////////////////////////////////////////
- template <typename Modifiers>
- struct make_primitive<tag::hex, Modifiers>
- : make_uint<unsigned, 16> {};
- template <typename Modifiers, typename A0>
- struct make_primitive<
- terminal_ex<tag::hex
- , fusion::vector1<A0> > , Modifiers>
- : make_direct_uint<unsigned, 16> {};
- ///////////////////////////////////////////////////////////////////////////
- template <typename Modifiers>
- struct make_primitive<tag::ushort_, Modifiers>
- : make_uint<unsigned short> {};
- template <typename Modifiers, typename A0>
- struct make_primitive<
- terminal_ex<tag::ushort_
- , fusion::vector1<A0> > , Modifiers>
- : make_direct_uint<unsigned short> {};
- ///////////////////////////////////////////////////////////////////////////
- template <typename Modifiers>
- struct make_primitive<tag::uint_, Modifiers>
- : make_uint<unsigned> {};
- template <typename Modifiers, typename A0>
- struct make_primitive<
- terminal_ex<tag::uint_
- , fusion::vector1<A0> > , Modifiers>
- : make_direct_uint<unsigned> {};
- ///////////////////////////////////////////////////////////////////////////
- template <typename Modifiers>
- struct make_primitive<tag::ulong_, Modifiers>
- : make_uint<unsigned long> {};
- template <typename Modifiers, typename A0>
- struct make_primitive<
- terminal_ex<tag::ulong_
- , fusion::vector1<A0> > , Modifiers>
- : make_direct_uint<unsigned long> {};
- ///////////////////////////////////////////////////////////////////////////
- #ifdef BOOST_HAS_LONG_LONG
- template <typename Modifiers>
- struct make_primitive<tag::ulong_long, Modifiers>
- : make_uint<boost::ulong_long_type> {};
- template <typename Modifiers, typename A0>
- struct make_primitive<
- terminal_ex<tag::ulong_long
- , fusion::vector1<A0> > , Modifiers>
- : make_direct_uint<boost::ulong_long_type> {};
- #endif
- }}}
- #endif
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