| // Copyright (c) 2001-2009 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(BOOST_SPIRIT_KARMA_VERBATIM_MAR_02_2007_0303PM) |
| #define BOOST_SPIRIT_KARMA_VERBATIM_MAR_02_2007_0303PM |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1020) |
| #pragma once // MS compatible compilers support #pragma once |
| #endif |
| |
| #include <boost/spirit/home/support/unused.hpp> |
| #include <boost/spirit/home/support/attribute_of.hpp> |
| #include <boost/spirit/home/karma/domain.hpp> |
| #include <boost/fusion/include/at.hpp> |
| #include <boost/fusion/include/value_at.hpp> |
| |
| namespace boost { namespace spirit { namespace karma |
| { |
| /////////////////////////////////////////////////////////////////////////// |
| // The verbatim generator is used for verbatim[...] directives. |
| /////////////////////////////////////////////////////////////////////////// |
| struct verbatim |
| { |
| template <typename Component, typename Context, typename Unused> |
| struct attribute |
| : traits::attribute_of< |
| karma::domain, |
| typename result_of::right<Component>::type, |
| Context |
| > |
| { |
| }; |
| |
| template <typename Component, typename OutputIterator, |
| typename Context, typename Delimiter, typename Parameter> |
| static bool |
| generate(Component const& component, OutputIterator& sink, |
| Context& ctx, Delimiter const& d, Parameter const& param) |
| { |
| // the verbatim generator simply dispatches to the embedded |
| // generator while supplying unused as the new delimiter |
| // to avoid delimiting down the generator stream |
| typedef typename |
| spirit::result_of::right<Component>::type::director |
| director; |
| |
| if (director::generate(spirit::right(component), sink, ctx, |
| unused, param)) |
| { |
| karma::delimit(sink, d); // always do post-delimiting |
| return true; |
| } |
| return false; |
| } |
| |
| template <typename Component, typename Context> |
| static std::string what(Component const& component, Context const& ctx) |
| { |
| std::string result = "verbatim["; |
| |
| typedef typename |
| spirit::result_of::right<Component>::type::director |
| director; |
| |
| result += director::what(spirit::right(component), ctx); |
| result += "]"; |
| return result; |
| } |
| }; |
| |
| }}} |
| |
| #endif |