| /*============================================================================= |
| Copyright (c) 2001-2007 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_REAL_APR_18_2006_0850AM) |
| #define BOOST_SPIRIT_REAL_APR_18_2006_0850AM |
| |
| #include <boost/spirit/home/qi/skip.hpp> |
| #include <boost/spirit/home/qi/numeric/real_policies.hpp> |
| #include <boost/spirit/home/qi/numeric/numeric_utils.hpp> |
| #include <boost/spirit/home/qi/numeric/detail/real_impl.hpp> |
| |
| namespace boost { namespace spirit { namespace qi |
| { |
| namespace detail |
| { |
| template <typename RealPolicies> |
| struct real_policy; |
| } |
| |
| template < |
| typename T = double, |
| typename RealPolicies = real_policies<T> |
| > |
| struct real_parser |
| { |
| template <typename Component, typename Context, typename Iterator> |
| struct attribute |
| { |
| typedef T type; |
| }; |
| |
| template < |
| typename Component |
| , typename Iterator, typename Context |
| , typename Skipper, typename Attribute> |
| static bool parse( |
| Component const& component |
| , Iterator& first, Iterator const& last |
| , Context& /*context*/, Skipper const& skipper |
| , Attribute& attr) |
| { |
| RealPolicies const& p = detail::real_policy<RealPolicies>::get( |
| fusion::at_c<0>(component.elements)); |
| |
| qi::skip(first, last, skipper); |
| return detail::real_impl<T, RealPolicies>::parse(first, last, attr, p); |
| } |
| |
| template <typename Component, typename Context> |
| static std::string what(Component const& component, Context const& ctx) |
| { |
| return "real number"; |
| } |
| }; |
| }}} |
| |
| #endif |