| 1 | /*============================================================================= |
|---|---|
| 2 | Copyright (c) 2001-2014 Joel de Guzman |
| 3 | Copyright (c) 2001-2011 Hartmut Kaiser |
| 4 | |
| 5 | Distributed under the Boost Software License, Version 1.0. (See accompanying |
| 6 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| 7 | ==============================================================================*/ |
| 8 | #if !defined(BOOST_SPIRIT_X3_EOL_MARCH_23_2007_0454PM) |
| 9 | #define BOOST_SPIRIT_X3_EOL_MARCH_23_2007_0454PM |
| 10 | |
| 11 | #include <boost/spirit/home/x3/core/skip_over.hpp> |
| 12 | #include <boost/spirit/home/x3/core/parser.hpp> |
| 13 | #include <boost/spirit/home/x3/support/unused.hpp> |
| 14 | |
| 15 | namespace boost { namespace spirit { namespace x3 |
| 16 | { |
| 17 | struct eol_parser : parser<eol_parser> |
| 18 | { |
| 19 | typedef unused_type attribute_type; |
| 20 | static bool const has_attribute = false; |
| 21 | |
| 22 | template <typename Iterator, typename Context, typename Attribute> |
| 23 | bool parse(Iterator& first, Iterator const& last |
| 24 | , Context const& context, unused_type, Attribute& /*attr*/) const |
| 25 | { |
| 26 | x3::skip_over(first, last, context); |
| 27 | Iterator iter = first; |
| 28 | bool matched = false; |
| 29 | if (iter != last && *iter == '\r') // CR |
| 30 | { |
| 31 | matched = true; |
| 32 | ++iter; |
| 33 | } |
| 34 | if (iter != last && *iter == '\n') // LF |
| 35 | { |
| 36 | matched = true; |
| 37 | ++iter; |
| 38 | } |
| 39 | |
| 40 | if (matched) first = iter; |
| 41 | return matched; |
| 42 | } |
| 43 | }; |
| 44 | |
| 45 | template<> |
| 46 | struct get_info<eol_parser> |
| 47 | { |
| 48 | typedef std::string result_type; |
| 49 | result_type operator()(eol_parser const &) const { return "eol"; } |
| 50 | }; |
| 51 | |
| 52 | constexpr auto eol = eol_parser{}; |
| 53 | }}} |
| 54 | |
| 55 | #endif |
| 56 |