boost/spirit/home/karma/numeric/uint.hpp
// Copyright (c) 2001-2011 Hartmut Kaiser // // 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_KARMA_UINT_FEB_23_2007_0840PM) #define BOOST_SPIRIT_KARMA_UINT_FEB_23_2007_0840PM #if defined(_MSC_VER) #pragma once #endif #include <boost/limits.hpp> #include <boost/config.hpp> #include <boost/mpl/bool.hpp> #include <boost/utility/enable_if.hpp> #include <boost/spirit/home/support/common_terminals.hpp> #include <boost/spirit/home/support/string_traits.hpp> #include <boost/spirit/home/support/numeric_traits.hpp> #include <boost/spirit/home/support/info.hpp> #include <boost/spirit/home/support/char_class.hpp> #include <boost/spirit/home/support/container.hpp> #include <boost/spirit/home/support/detail/get_encoding.hpp> #include <boost/spirit/home/support/detail/is_spirit_tag.hpp> #include <boost/spirit/home/karma/meta_compiler.hpp> #include <boost/spirit/home/karma/delimit_out.hpp> #include <boost/spirit/home/karma/auxiliary/lazy.hpp> #include <boost/spirit/home/karma/detail/get_casetag.hpp> #include <boost/spirit/home/karma/detail/extract_from.hpp> #include <boost/spirit/home/karma/detail/enable_lit.hpp> #include <boost/spirit/home/karma/domain.hpp> #include <boost/spirit/home/karma/numeric/detail/numeric_utils.hpp> #include <boost/fusion/include/at.hpp> #include <boost/fusion/include/value_at.hpp> #include <boost/fusion/include/vector.hpp> namespace boost { namespace spirit { namespace tag { template <typename T, unsigned Radix> struct uint_generator { BOOST_SPIRIT_IS_TAG() }; } namespace karma { /////////////////////////////////////////////////////////////////////// // This one is the class that the user can instantiate directly in // order to create a customized int generator template <typename T = unsigned int, unsigned Radix = 10> struct uint_generator : spirit::terminal<tag::uint_generator<T, Radix> > {}; } /////////////////////////////////////////////////////////////////////////// // Enablers /////////////////////////////////////////////////////////////////////////// template <> struct use_terminal<karma::domain, tag::ushort_> // enables ushort_ : mpl::true_ {}; template <> struct use_terminal<karma::domain, tag::uint_> // enables uint_ : mpl::true_ {}; template <> struct use_terminal<karma::domain, tag::ulong_> // enables ulong_ : mpl::true_ {}; template <> struct use_terminal<karma::domain, tag::bin> // enables bin : mpl::true_ {}; template <> struct use_terminal<karma::domain, tag::oct> // enables oct : mpl::true_ {}; template <> struct use_terminal<karma::domain, tag::hex> // enables hex : mpl::true_ {}; #ifdef BOOST_HAS_LONG_LONG template <> struct use_terminal<karma::domain, tag::ulong_long> // enables ulong_long : mpl::true_ {}; #endif /////////////////////////////////////////////////////////////////////////// #if !defined(BOOST_NO_INTRINSIC_WCHAR_T) template <> // enables lit(unsigned short(0)) struct use_terminal<karma::domain, unsigned short> : mpl::true_ {}; #endif template <> // enables lit(0U) struct use_terminal<karma::domain, unsigned int> : mpl::true_ {}; template <> // enables lit(0UL) struct use_terminal<karma::domain, unsigned long> : mpl::true_ {}; #ifdef BOOST_HAS_LONG_LONG template <> // enables lit(0ULL) struct use_terminal<karma::domain, boost::ulong_long_type> : mpl::true_ {}; #endif /////////////////////////////////////////////////////////////////////////// template <typename A0> struct use_terminal<karma::domain // enables ushort_(...) , terminal_ex<tag::ushort_, fusion::vector1<A0> > > : mpl::true_ {}; template <typename A0> struct use_terminal<karma::domain // enables uint_(...) , terminal_ex<tag::uint_, fusion::vector1<A0> > > : mpl::true_ {}; template <typename A0> struct use_terminal<karma::domain // enables ulong_(...) , terminal_ex<tag::ulong_, fusion::vector1<A0> > > : mpl::true_ {}; template <typename A0> struct use_terminal<karma::domain // enables bin(...) , terminal_ex<tag::bin, fusion::vector1<A0> > > : mpl::true_ {}; template <typename A0> struct use_terminal<karma::domain // enables oct(...) , terminal_ex<tag::oct, fusion::vector1<A0> > > : mpl::true_ {}; template <typename A0> struct use_terminal<karma::domain // enables hex(...) , terminal_ex<tag::hex, fusion::vector1<A0> > > : mpl::true_ {}; #ifdef BOOST_HAS_LONG_LONG template <typename A0> struct use_terminal<karma::domain // enables ulong_long(...) , terminal_ex<tag::ulong_long, fusion::vector1<A0> > > : mpl::true_ {}; #endif /////////////////////////////////////////////////////////////////////////// template <> // enables *lazy* ushort_(...) struct use_lazy_terminal<karma::domain, tag::ushort_, 1> : mpl::true_ {}; template <> // enables *lazy* uint_(...) struct use_lazy_terminal<karma::domain, tag::uint_, 1> : mpl::true_ {}; template <> // enables *lazy* ulong_(...) struct use_lazy_terminal<karma::domain, tag::ulong_, 1> : mpl::true_ {}; template <> // enables *lazy* bin(...) struct use_lazy_terminal<karma::domain, tag::bin, 1> : mpl::true_ {}; template <> // enables *lazy* oct(...) struct use_lazy_terminal<karma::domain, tag::oct, 1> : mpl::true_ {}; template <> // enables *lazy* hex(...) struct use_lazy_terminal<karma::domain, tag::hex, 1> : mpl::true_ {}; #ifdef BOOST_HAS_LONG_LONG template <> // enables *lazy* ulong_long(...) struct use_lazy_terminal<karma::domain, tag::ulong_long, 1> : mpl::true_ {}; #endif /////////////////////////////////////////////////////////////////////////// // enables any custom uint_generator template <typename T, unsigned Radix> struct use_terminal<karma::domain, tag::uint_generator<T, Radix> > : mpl::true_ {}; // enables any custom uint_generator(...) template <typename T, unsigned Radix, typename A0> struct use_terminal<karma::domain , terminal_ex<tag::uint_generator<T, Radix>, fusion::vector1<A0> > > : mpl::true_ {}; // enables *lazy* custom uint_generator template <typename T, unsigned Radix> struct use_lazy_terminal< karma::domain , tag::uint_generator<T, Radix> , 1 // arity > : mpl::true_ {}; // enables lit(uint) template <typename A0> struct use_terminal<karma::domain , terminal_ex<tag::lit, fusion::vector1<A0> > , typename enable_if<traits::is_uint<A0> >::type> : mpl::true_ {}; }} /////////////////////////////////////////////////////////////////////////////// namespace boost { namespace spirit { namespace karma { #ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS using spirit::ushort_; using spirit::uint_; using spirit::ulong_; #ifdef BOOST_HAS_LONG_LONG using spirit::ulong_long; #endif using spirit::bin; using spirit::oct; using spirit::hex; using spirit::lit; // lit(1U) is equivalent to 1U #endif 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::bin_type; using spirit::oct_type; using spirit::hex_type; using spirit::lit_type; /////////////////////////////////////////////////////////////////////////// // This specialization is used for unsigned int generators not having a // direct initializer: uint_, ulong_ etc. These generators must be used in // conjunction with an Attribute. /////////////////////////////////////////////////////////////////////////// template <typename T, typename CharEncoding, typename Tag, unsigned Radix> struct any_uint_generator : primitive_generator<any_uint_generator<T, CharEncoding, Tag, Radix> > { template <typename Context, typename Unused> struct attribute { typedef T type; }; // check template Attribute 'Radix' for validity BOOST_SPIRIT_ASSERT_MSG( Radix >= 2 && Radix <= 36, not_supported_radix, ()); BOOST_SPIRIT_ASSERT_MSG( // the following is a workaround for STLPort, where the simpler // `!std::numeric_limits<T>::is_signed` wouldn't compile mpl::not_<mpl::bool_<std::numeric_limits<T>::is_signed> >::value, signed_unsigned_mismatch, ()); // int has a Attribute attached template <typename OutputIterator, typename Context, typename Delimiter , typename Attribute> static bool generate(OutputIterator& sink, Context& context, Delimiter const& d , Attribute const& attr) { if (!traits::has_optional_value(attr)) return false; // fail if it's an uninitialized optional return uint_inserter<Radix, CharEncoding, Tag>:: call(sink, traits::extract_from<T>(attr, context)) && delimit_out(sink, d); // always do post-delimiting } // this int has no Attribute attached, it needs to have been // initialized from a direct literal template <typename OutputIterator, typename Context, typename Delimiter> static bool generate(OutputIterator&, Context&, Delimiter const&, unused_type) { // It is not possible (doesn't make sense) to use numeric generators // without providing any attribute, as the generator doesn't 'know' // what to output. The following assertion fires if this situation // is detected in your code. BOOST_SPIRIT_ASSERT_FAIL(OutputIterator, uint_not_usable_without_attribute, ()); return false; } template <typename Context> static info what(Context const& /*context*/) { return info("unsigned-integer"); } }; /////////////////////////////////////////////////////////////////////////// // This specialization is used for unsigned int generators having a direct // initializer: uint_(10), ulong_(20) etc. /////////////////////////////////////////////////////////////////////////// template < typename T, typename CharEncoding, typename Tag, unsigned Radix , bool no_attribute> struct literal_uint_generator : primitive_generator<literal_uint_generator<T, CharEncoding, Tag, Radix , no_attribute> > { template <typename Context, typename Unused = unused_type> struct attribute : mpl::if_c<no_attribute, unused_type, T> {}; literal_uint_generator(typename add_const<T>::type n) : n_(n) {} // check template Attribute 'Radix' for validity BOOST_SPIRIT_ASSERT_MSG( Radix >= 2 && Radix <= 36, not_supported_radix, ()); BOOST_SPIRIT_ASSERT_MSG( // the following is a workaround for STLPort, where the simpler // `!std::numeric_limits<T>::is_signed wouldn't` compile mpl::not_<mpl::bool_<std::numeric_limits<T>::is_signed> >::value, signed_unsigned_mismatch, ()); // A uint(1U) which additionally has an associated attribute emits // its immediate literal only if it matches the attribute, otherwise // it fails. template <typename OutputIterator, typename Context, typename Delimiter , typename Attribute> bool generate(OutputIterator& sink, Context& context , Delimiter const& d, Attribute const& attr) const { typedef typename attribute<Context>::type attribute_type; if (!traits::has_optional_value(attr) || n_ != traits::extract_from<attribute_type>(attr, context)) { return false; } return uint_inserter<Radix, CharEncoding, Tag>::call(sink, n_) && delimit_out(sink, d); // always do post-delimiting } // A uint(1U) without any associated attribute just emits its // immediate literal template <typename OutputIterator, typename Context, typename Delimiter> bool generate(OutputIterator& sink, Context&, Delimiter const& d , unused_type) const { return uint_inserter<Radix, CharEncoding, Tag>::call(sink, n_) && delimit_out(sink, d); // always do post-delimiting } template <typename Context> static info what(Context const& /*context*/) { return info("unsigned-integer"); } T n_; }; /////////////////////////////////////////////////////////////////////////// // Generator generators: make_xxx function (objects) /////////////////////////////////////////////////////////////////////////// namespace detail { template <typename T, typename Modifiers, unsigned Radix = 10> struct make_uint { static bool const lower = has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value; static bool const upper = has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value; typedef any_uint_generator< T , typename spirit::detail::get_encoding_with_case< Modifiers, unused_type, lower || upper>::type , typename detail::get_casetag<Modifiers, lower || upper>::type , Radix > result_type; result_type operator()(unused_type, unused_type) const { return result_type(); } }; } /////////////////////////////////////////////////////////////////////////// template <typename Modifiers> struct make_primitive<tag::ushort_, Modifiers> : detail::make_uint<unsigned short, Modifiers> {}; template <typename Modifiers> struct make_primitive<tag::uint_, Modifiers> : detail::make_uint<unsigned int, Modifiers> {}; template <typename Modifiers> struct make_primitive<tag::ulong_, Modifiers> : detail::make_uint<unsigned long, Modifiers> {}; template <typename Modifiers> struct make_primitive<tag::bin, Modifiers> : detail::make_uint<unsigned, Modifiers, 2> {}; template <typename Modifiers> struct make_primitive<tag::oct, Modifiers> : detail::make_uint<unsigned, Modifiers, 8> {}; template <typename Modifiers> struct make_primitive<tag::hex, Modifiers> : detail::make_uint<unsigned, Modifiers, 16> {}; #ifdef BOOST_HAS_LONG_LONG template <typename Modifiers> struct make_primitive<tag::ulong_long, Modifiers> : detail::make_uint<boost::ulong_long_type, Modifiers> {}; #endif template <typename T, unsigned Radix, typename Modifiers> struct make_primitive<tag::uint_generator<T, Radix>, Modifiers> : detail::make_uint<typename remove_const<T>::type, Modifiers, Radix> {}; /////////////////////////////////////////////////////////////////////////// namespace detail { template <typename T, typename Modifiers, unsigned Radix = 10> struct make_uint_direct { static bool const lower = has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value; static bool const upper = has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value; typedef literal_uint_generator< T , typename spirit::detail::get_encoding_with_case< Modifiers, unused_type, lower || upper>::type , typename detail::get_casetag<Modifiers, lower || upper>::type , Radix, 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 Modifiers, typename A0> struct make_primitive< terminal_ex<tag::ushort_, fusion::vector1<A0> >, Modifiers> : detail::make_uint_direct<unsigned short, Modifiers> {}; template <typename Modifiers, typename A0> struct make_primitive< terminal_ex<tag::uint_, fusion::vector1<A0> >, Modifiers> : detail::make_uint_direct<unsigned int, Modifiers> {}; template <typename Modifiers, typename A0> struct make_primitive< terminal_ex<tag::ulong_, fusion::vector1<A0> >, Modifiers> : detail::make_uint_direct<unsigned long, Modifiers> {}; template <typename Modifiers, typename A0> struct make_primitive< terminal_ex<tag::bin, fusion::vector1<A0> >, Modifiers> : detail::make_uint_direct<unsigned, Modifiers, 2> {}; template <typename Modifiers, typename A0> struct make_primitive< terminal_ex<tag::oct, fusion::vector1<A0> >, Modifiers> : detail::make_uint_direct<unsigned, Modifiers, 8> {}; template <typename Modifiers, typename A0> struct make_primitive< terminal_ex<tag::hex, fusion::vector1<A0> >, Modifiers> : detail::make_uint_direct<unsigned, Modifiers, 16> {}; #ifdef BOOST_HAS_LONG_LONG template <typename Modifiers, typename A0> struct make_primitive< terminal_ex<tag::ulong_long, fusion::vector1<A0> >, Modifiers> : detail::make_uint_direct<boost::ulong_long_type, Modifiers> {}; #endif template <typename T, unsigned Radix, typename A0, typename Modifiers> struct make_primitive< terminal_ex<tag::uint_generator<T, Radix>, fusion::vector1<A0> > , Modifiers> : detail::make_uint_direct<typename remove_const<T>::type, Modifiers, Radix> {}; /////////////////////////////////////////////////////////////////////////// namespace detail { template <typename T, typename Modifiers> struct basic_uint_literal { static bool const lower = has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value; static bool const upper = has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value; typedef literal_uint_generator< T , typename spirit::detail::get_encoding_with_case< Modifiers, unused_type, lower || upper>::type , typename detail::get_casetag<Modifiers, lower || upper>::type , 10, true > result_type; template <typename T_> result_type operator()(T_ i, unused_type) const { return result_type(i); } }; } #if !defined(BOOST_NO_INTRINSIC_WCHAR_T) template <typename Modifiers> struct make_primitive<unsigned short, Modifiers> : detail::basic_uint_literal<unsigned short, Modifiers> {}; #endif template <typename Modifiers> struct make_primitive<unsigned int, Modifiers> : detail::basic_uint_literal<unsigned int, Modifiers> {}; template <typename Modifiers> struct make_primitive<unsigned long, Modifiers> : detail::basic_uint_literal<unsigned long, Modifiers> {}; #ifdef BOOST_HAS_LONG_LONG template <typename Modifiers> struct make_primitive<boost::ulong_long_type, Modifiers> : detail::basic_uint_literal<boost::ulong_long_type, Modifiers> {}; #endif // lit(uint) template <typename Modifiers, typename A0> struct make_primitive< terminal_ex<tag::lit, fusion::vector1<A0> > , Modifiers , typename enable_if<traits::is_uint<A0> >::type> { static bool const lower = has_modifier<Modifiers, tag::char_code_base<tag::lower> >::value; static bool const upper = has_modifier<Modifiers, tag::char_code_base<tag::upper> >::value; typedef literal_uint_generator< typename remove_const<A0>::type , typename spirit::detail::get_encoding_with_case< Modifiers, unused_type, lower || upper>::type , typename detail::get_casetag<Modifiers, lower || upper>::type , 10, true > result_type; template <typename Terminal> result_type operator()(Terminal const& term, unused_type) const { return result_type(fusion::at_c<0>(term.args)); } }; }}} #endif