56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
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/*=============================================================================
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Copyright (c) 2001-2014 Joel de Guzman
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Copyright (c) 2001-2011 Hartmut Kaiser
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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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==============================================================================*/
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#if !defined(BOOST_SPIRIT_X3_EOL_MARCH_23_2007_0454PM)
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#define BOOST_SPIRIT_X3_EOL_MARCH_23_2007_0454PM
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#include <boost/spirit/home/x3/core/skip_over.hpp>
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#include <boost/spirit/home/x3/core/parser.hpp>
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#include <boost/spirit/home/x3/support/unused.hpp>
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namespace boost { namespace spirit { namespace x3
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{
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struct eol_parser : parser<eol_parser>
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{
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typedef unused_type attribute_type;
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static bool const has_attribute = false;
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template <typename Iterator, typename Context, typename Attribute>
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bool parse(Iterator& first, Iterator const& last
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, Context const& context, unused_type, Attribute& /*attr*/) const
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{
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x3::skip_over(first, last, context);
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Iterator iter = first;
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bool matched = false;
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if (iter != last && *iter == '\r') // CR
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{
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matched = true;
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++iter;
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}
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if (iter != last && *iter == '\n') // LF
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{
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matched = true;
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++iter;
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}
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if (matched) first = iter;
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return matched;
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}
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};
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template<>
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struct get_info<eol_parser>
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{
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typedef std::string result_type;
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result_type operator()(eol_parser const &) const { return "eol"; }
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};
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constexpr auto eol = eol_parser{};
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}}}
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#endif
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