76 lines
2.7 KiB
C++
Executable File
76 lines
2.7 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_KARMA_VERBATIM_MAR_02_2007_0303PM)
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#define BOOST_SPIRIT_KARMA_VERBATIM_MAR_02_2007_0303PM
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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/support/unused.hpp>
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#include <boost/spirit/home/support/attribute_of.hpp>
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#include <boost/spirit/home/karma/domain.hpp>
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#include <boost/fusion/include/at.hpp>
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#include <boost/fusion/include/value_at.hpp>
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namespace boost { namespace spirit { namespace karma
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{
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///////////////////////////////////////////////////////////////////////////
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// The verbatim generator is used for verbatim[...] directives.
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///////////////////////////////////////////////////////////////////////////
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struct verbatim
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{
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template <typename Component, typename Context, typename Unused>
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struct attribute
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: traits::attribute_of<
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karma::domain,
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typename result_of::right<Component>::type,
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Context
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>
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{
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};
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template <typename Component, typename OutputIterator,
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typename Context, typename Delimiter, typename Parameter>
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static bool
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generate(Component const& component, OutputIterator& sink,
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Context& ctx, Delimiter const& d, Parameter const& param)
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{
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// the verbatim generator simply dispatches to the embedded
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// generator while supplying unused as the new delimiter
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// to avoid delimiting down the generator stream
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typedef typename
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spirit::result_of::right<Component>::type::director
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director;
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if (director::generate(spirit::right(component), sink, ctx,
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unused, param))
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{
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karma::delimit(sink, d); // always do post-delimiting
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return true;
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}
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return false;
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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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std::string result = "verbatim[";
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typedef typename
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spirit::result_of::right<Component>::type::director
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director;
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result += director::what(spirit::right(component), ctx);
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result += "]";
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return result;
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}
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};
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}}}
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#endif
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