projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
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 | =============================================================================*/ | |
| 11fdf7f2 TL |
8 | #if !defined(BOOST_SPIRIT_X3_LIST_MARCH_24_2007_1031AM) |
| 9 | #define BOOST_SPIRIT_X3_LIST_MARCH_24_2007_1031AM | |
| 7c673cae FG |
10 | |
| 11 | #include <boost/spirit/home/x3/core/parser.hpp> | |
| 12 | #include <boost/spirit/home/x3/support/traits/container_traits.hpp> | |
| 13 | #include <boost/spirit/home/x3/support/traits/attribute_of.hpp> | |
| 14 | #include <boost/spirit/home/x3/core/detail/parse_into_container.hpp> | |
| 15 | ||
| 16 | namespace boost { namespace spirit { namespace x3 | |
| 17 | { | |
| 18 | template <typename Left, typename Right> | |
| 19 | struct list : binary_parser<Left, Right, list<Left, Right>> | |
| 20 | { | |
| 21 | typedef binary_parser<Left, Right, list<Left, Right>> base_type; | |
| 22 | static bool const handles_container = true; | |
| 23 | static bool const has_attribute = true; | |
| 24 | ||
| 25 | list(Left const& left, Right const& right) | |
| 26 | : base_type(left, right) {} | |
| 27 | ||
| 28 | template <typename Iterator, typename Context | |
| 29 | , typename RContext, typename Attribute> | |
| 30 | bool parse(Iterator& first, Iterator const& last | |
| 31 | , Context const& context, RContext& rcontext, Attribute& attr) const | |
| 32 | { | |
| 33 | // in order to succeed we need to match at least one element | |
| 34 | if (!detail::parse_into_container( | |
| 35 | this->left, first, last, context, rcontext, attr)) | |
| 36 | return false; | |
| 37 | ||
| 38 | Iterator save = first; | |
| 39 | while (this->right.parse(first, last, context, rcontext, unused) | |
| 40 | && detail::parse_into_container( | |
| 41 | this->left, first, last, context, rcontext, attr)) | |
| 42 | { | |
| 43 | save = first; | |
| 44 | } | |
| 45 | ||
| 46 | first = save; | |
| 47 | return true; | |
| 48 | } | |
| 49 | }; | |
| 50 | ||
| 51 | template <typename Left, typename Right> | |
| 52 | inline list< | |
| 53 | typename extension::as_parser<Left>::value_type | |
| 54 | , typename extension::as_parser<Right>::value_type> | |
| 55 | operator%(Left const& left, Right const& right) | |
| 56 | { | |
| 57 | return { as_parser(left), as_parser(right) }; | |
| 58 | } | |
| 59 | }}} | |
| 60 | ||
| 61 | namespace boost { namespace spirit { namespace x3 { namespace traits | |
| 62 | { | |
| 63 | template <typename Left, typename Right, typename Context> | |
| 64 | struct attribute_of<x3::list<Left, Right>, Context> | |
| 65 | : traits::build_container< | |
| 66 | typename attribute_of<Left, Context>::type> {}; | |
| 67 | }}}} | |
| 68 | ||
| 69 | #endif |