74 lines
2.4 KiB
C++
Executable File
74 lines
2.4 KiB
C++
Executable File
// Copyright (c) 2001-2008 Hartmut Kaiser
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#if !defined(BOOST_SPIRIT_STREAM_MAY_05_2007_1228PM)
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#define BOOST_SPIRIT_STREAM_MAY_05_2007_1228PM
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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#pragma once // MS compatible compilers support #pragma once
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#endif
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#include <boost/spirit/home/qi/detail/string_parse.hpp>
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#include <boost/spirit/home/qi/stream/detail/match_manip.hpp>
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#include <boost/spirit/home/qi/stream/detail/iterator_istream.hpp>
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#include <boost/spirit/home/support/detail/hold_any.hpp>
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#include <iosfwd>
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#include <sstream>
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///////////////////////////////////////////////////////////////////////////////
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namespace boost { namespace spirit
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{
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// overload the streaming operators for the unused_type
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template <typename Char, typename Traits>
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inline std::basic_istream<Char, Traits>&
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operator>> (std::basic_istream<Char, Traits>& is, unused_type&)
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{
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return is;
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}
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}}
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///////////////////////////////////////////////////////////////////////////////
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namespace boost { namespace spirit { namespace qi
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{
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template <typename Char, typename T = spirit::hold_any>
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struct any_stream
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{
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template <typename Component, typename Context, typename Iterator>
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struct attribute
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{
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typedef T type;
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};
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template <
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typename Component
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, typename Iterator, typename Context
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, typename Skipper, typename Attribute>
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static bool parse(
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Component const& /*component*/
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, Iterator& first, Iterator const& last
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, Context& /*context*/, Skipper const& skipper
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, Attribute& attr)
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{
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typedef qi::detail::iterator_source<Iterator> source_device;
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typedef boost::iostreams::stream<source_device> instream;
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qi::skip(first, last, skipper);
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instream in (first, last);
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in >> attr; // use existing operator>>()
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return in.good() || in.eof();
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}
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template <typename Component, typename Context>
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static std::string what(Component const& component, Context const& ctx)
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{
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return "any-stream";
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}
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};
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}}}
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#endif
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