Mercurial > hg > vamp-build-and-test
diff DEPENDENCIES/generic/include/boost/spirit/home/qi/stream/stream.hpp @ 16:2665513ce2d3
Add boost headers
author | Chris Cannam |
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date | Tue, 05 Aug 2014 11:11:38 +0100 |
parents | |
children | c530137014c0 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DEPENDENCIES/generic/include/boost/spirit/home/qi/stream/stream.hpp Tue Aug 05 11:11:38 2014 +0100 @@ -0,0 +1,114 @@ +/*============================================================================= + 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_STREAM_MAY_05_2007_1228PM) +#define BOOST_SPIRIT_STREAM_MAY_05_2007_1228PM + +#if defined(_MSC_VER) +#pragma once +#endif + +#include <boost/spirit/home/qi/detail/string_parse.hpp> +#include <boost/spirit/home/qi/stream/detail/match_manip.hpp> +#include <boost/spirit/home/qi/stream/detail/iterator_source.hpp> +#include <boost/spirit/home/support/detail/hold_any.hpp> + +#include <iosfwd> +#include <sstream> + +/////////////////////////////////////////////////////////////////////////////// +namespace boost { namespace spirit +{ + /////////////////////////////////////////////////////////////////////////// + // Enablers + /////////////////////////////////////////////////////////////////////////// + template <> + struct use_terminal<qi::domain, tag::stream> // enables stream + : mpl::true_ {}; + + template <> + struct use_terminal<qi::domain, tag::wstream> // enables wstream + : mpl::true_ {}; +}} + +/////////////////////////////////////////////////////////////////////////////// +namespace boost { namespace spirit { namespace qi +{ +#ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS + using spirit::stream; + using spirit::wstream; +#endif + using spirit::stream_type; + using spirit::wstream_type; + + template <typename Char = char, typename T = spirit::basic_hold_any<char> > + struct stream_parser + : primitive_parser<stream_parser<Char, T> > + { + 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 qi::detail::iterator_source<Iterator> source_device; + typedef boost::iostreams::stream<source_device> instream; + + qi::skip_over(first, last, skipper); + + instream in(first, last); // copies 'first' + in >> attr_; // use existing operator>>() + + // advance the iterator if everything is ok + if (in) { + std::streamsize pos = in.tellg(); + std::advance(first, pos); + return true; + } + + return false; + } + + template <typename Context> + info what(Context& /*context*/) const + { + return info("stream"); + } + }; + + template <typename T, typename Char = char> + struct typed_stream + : proto::terminal<stream_parser<Char, T> >::type + { + }; + + /////////////////////////////////////////////////////////////////////////// + // Parser generators: make_xxx function (objects) + /////////////////////////////////////////////////////////////////////////// + template <typename Char> + struct make_stream + { + typedef stream_parser<Char> result_type; + result_type operator()(unused_type, unused_type) const + { + return result_type(); + } + }; + + template <typename Modifiers> + struct make_primitive<tag::stream, Modifiers> : make_stream<char> {}; + + template <typename Modifiers> + struct make_primitive<tag::wstream, Modifiers> : make_stream<wchar_t> {}; +}}} + +#endif