/*============================================================================= Copyright (c) 2001-2011 Joel de Guzman Copyright (c) 2001-2011 Hartmut Kaiser Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) =============================================================================*/ #if !defined(SPIRIT_PLUS_MARCH_13_2007_0127PM) #define SPIRIT_PLUS_MARCH_13_2007_0127PM #if defined(_MSC_VER) #pragma once #endif #include #include #include #include #include #include #include #include #include namespace boost { namespace spirit { /////////////////////////////////////////////////////////////////////////// // Enablers /////////////////////////////////////////////////////////////////////////// template <> struct use_operator // enables +p : mpl::true_ {}; }} namespace boost { namespace spirit { namespace qi { template struct plus : unary_parser > { typedef Subject subject_type; template struct attribute { // Build a std::vector from the subject's attribute. Note // that build_std_vector may return unused_type if the // subject's attribute is an unused_type. typedef typename traits::build_std_vector< typename traits::attribute_of< Subject, Context, Iterator>::type >::type type; }; plus(Subject const& subject) : subject(subject) {} template bool parse_container(F f) const { // in order to succeed we need to match at least one element if (f (subject)) return false; while (!f (subject)) ; return true; } template bool parse(Iterator& first, Iterator const& last , Context& context, Skipper const& skipper , Attribute& attr) const { typedef detail::fail_function fail_function; // ensure the attribute is actually a container type traits::make_container(attr); Iterator iter = first; fail_function f(iter, last, context, skipper); if (!parse_container(detail::make_pass_container(f, attr))) return false; first = f.first; return true; } template info what(Context& context) const { return info("plus", subject.what(context)); } Subject subject; }; /////////////////////////////////////////////////////////////////////////// // Parser generators: make_xxx function (objects) /////////////////////////////////////////////////////////////////////////// template struct make_composite : make_unary_composite {}; }}} namespace boost { namespace spirit { namespace traits { /////////////////////////////////////////////////////////////////////////// template struct has_semantic_action > : unary_has_semantic_action {}; /////////////////////////////////////////////////////////////////////////// template struct handles_container, Attribute, Context , Iterator> : mpl::true_ {}; }}} #endif