/*=============================================================================
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Copyright (c) 2001-2011 Hartmut Kaiser
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Copyright (c) 2001-2011 Joel de Guzman
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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_EOL_APRIL_18_2008_0751PM)
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#define BOOST_SPIRIT_EOL_APRIL_18_2008_0751PM
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#if defined(_MSC_VER)
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#pragma once
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#endif
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#include <boost/mpl/bool.hpp>
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#include <boost/spirit/home/qi/domain.hpp>
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#include <boost/spirit/home/qi/parser.hpp>
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#include <boost/spirit/home/qi/meta_compiler.hpp>
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#include <boost/spirit/home/qi/skip_over.hpp>
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#include <boost/spirit/home/support/common_terminals.hpp>
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namespace boost { namespace spirit
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{
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///////////////////////////////////////////////////////////////////////////
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// Enablers
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///////////////////////////////////////////////////////////////////////////
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template <>
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struct use_terminal<qi::domain, tag::eol> // enables eol
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: mpl::true_ {};
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}}
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namespace boost { namespace spirit { namespace qi
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{
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#ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
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using spirit::eol;
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#endif
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using spirit::eol_type;
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struct eol_parser : primitive_parser<eol_parser>
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{
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template <typename Context, typename Iterator>
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struct attribute
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{
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typedef unused_type type;
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};
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template <typename Iterator, typename Context
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, typename Skipper, typename Attribute>
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bool parse(Iterator& first, Iterator const& last
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, Context& /*context*/, Skipper const& skipper
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, Attribute& /*attr*/) const
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{
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qi::skip_over(first, last, skipper);
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Iterator it = first;
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bool matched = false;
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if (it != last && *it == '\r') // CR
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{
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matched = true;
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++it;
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}
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if (it != last && *it == '\n') // LF
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{
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matched = true;
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++it;
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}
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if (!matched)
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return false;
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first = it;
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return true;
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}
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template <typename Context>
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info what(Context& /*context*/) const
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{
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return info("eol");
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}
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};
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///////////////////////////////////////////////////////////////////////////
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// Parser generators: make_xxx function (objects)
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///////////////////////////////////////////////////////////////////////////
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template <typename Modifiers>
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struct make_primitive<tag::eol, Modifiers>
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{
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typedef eol_parser result_type;
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result_type operator()(unused_type, unused_type) const
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{
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return result_type();
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}
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};
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}}}
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#endif
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