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1 | /*============================================================================= |
2 | Copyright (c) 2001-2014 Joel de Guzman | |
3 | ||
4 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
5 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
6 | =============================================================================*/ | |
7 | #if !defined(SPIRIT_AND_PREDICATE_MARCH_23_2007_0617PM) | |
8 | #define SPIRIT_AND_PREDICATE_MARCH_23_2007_0617PM | |
9 | ||
10 | #include <boost/spirit/home/x3/core/parser.hpp> | |
11 | ||
12 | namespace boost { namespace spirit { namespace x3 | |
13 | { | |
14 | template <typename Subject> | |
15 | struct and_predicate : unary_parser<Subject, and_predicate<Subject>> | |
16 | { | |
17 | typedef unary_parser<Subject, and_predicate<Subject>> base_type; | |
18 | ||
19 | typedef unused_type attribute_type; | |
20 | static bool const has_attribute = false; | |
21 | ||
22 | and_predicate(Subject const& subject) | |
23 | : base_type(subject) {} | |
24 | ||
25 | template <typename Iterator, typename Context | |
26 | , typename RContext, typename Attribute> | |
27 | bool parse(Iterator& first, Iterator const& last | |
28 | , Context const& context, RContext& rcontext, Attribute& /*attr*/) const | |
29 | { | |
30 | Iterator i = first; | |
31 | return this->subject.parse(i, last, context, rcontext, unused); | |
32 | } | |
33 | }; | |
34 | ||
35 | template <typename Subject> | |
36 | inline and_predicate<typename extension::as_parser<Subject>::value_type> | |
37 | operator&(Subject const& subject) | |
38 | { | |
39 | return { as_parser(subject) }; | |
40 | } | |
41 | }}} | |
42 | ||
43 | #endif |