59 lines
2.0 KiB
C++
Executable File
59 lines
2.0 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_DETAIL_EXTRACT_FROM_FEB_20_2007_0417PM)
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#define BOOST_SPIRIT_KARMA_DETAIL_EXTRACT_FROM_FEB_20_2007_0417PM
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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/char_class.hpp>
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namespace boost { namespace spirit { namespace karma { namespace detail
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{
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///////////////////////////////////////////////////////////////////////////
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// These utility functions insert the given parameter into the supplied
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// output iterator.
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// If the parameter is spirit's unused_type, this is a no_op.
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///////////////////////////////////////////////////////////////////////////
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template <typename OutputIterator, typename Parameter, typename Tag>
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inline bool
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generate_to(OutputIterator& sink, Parameter const& p, Tag)
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{
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typedef typename Tag::char_set char_set;
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typedef typename Tag::char_class char_class;
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*sink = spirit::char_class::convert<char_set>::to(char_class(), p);
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++sink;
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return true;
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}
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template <typename OutputIterator, typename Parameter>
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inline bool
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generate_to(OutputIterator& sink, Parameter const& p, unused_type = unused)
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{
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*sink = p;
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++sink;
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return true;
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}
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template <typename OutputIterator, typename Tag>
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inline bool generate_to(OutputIterator& sink, unused_type, Tag)
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{
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return true;
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}
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template <typename OutputIterator>
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inline bool generate_to(OutputIterator& sink, unused_type)
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{
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return true;
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}
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}}}} // namespace boost::spirit::karma::detail
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#endif // KARMA_CORE_DETAIL_INSERT_TO_HPP
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