diff DEPENDENCIES/generic/include/boost/spirit/home/karma/directive/as.hpp @ 16:2665513ce2d3

Add boost headers
author Chris Cannam
date Tue, 05 Aug 2014 11:11:38 +0100
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DEPENDENCIES/generic/include/boost/spirit/home/karma/directive/as.hpp	Tue Aug 05 11:11:38 2014 +0100
@@ -0,0 +1,165 @@
+//  Copyright (c) 2001-2011 Hartmut Kaiser
+//  Copyright (c)      2010 Bryce Lelbach
+//
+//  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_KARMA_AS_DEC_18_0510PM)
+#define SPIRIT_KARMA_AS_DEC_18_0510PM
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/spirit/home/karma/meta_compiler.hpp>
+#include <boost/spirit/home/karma/generator.hpp>
+#include <boost/spirit/home/karma/domain.hpp>
+#include <boost/spirit/home/karma/detail/output_iterator.hpp>
+#include <boost/spirit/home/karma/detail/as.hpp>
+#include <boost/spirit/home/support/unused.hpp>
+#include <boost/spirit/home/support/info.hpp>
+#include <boost/spirit/home/support/common_terminals.hpp>
+#include <boost/spirit/home/support/has_semantic_action.hpp>
+#include <boost/spirit/home/support/handles_container.hpp>
+#include <boost/spirit/home/support/assert_msg.hpp>
+#include <boost/spirit/home/support/container.hpp>
+#include <boost/spirit/home/karma/detail/attributes.hpp>
+
+namespace boost { namespace spirit { namespace karma
+{
+    template <typename T>
+    struct as
+      : stateful_tag_type<T, tag::as>
+    {
+        BOOST_SPIRIT_ASSERT_MSG(
+            (traits::is_container<T>::type::value),
+            error_type_must_be_a_container,
+            (T));
+    };
+}}}
+
+namespace boost { namespace spirit
+{
+    ///////////////////////////////////////////////////////////////////////////
+    // Enablers
+    ///////////////////////////////////////////////////////////////////////////
+    // enables as_string[...]
+    template <>
+    struct use_directive<karma::domain, tag::as_string> 
+      : mpl::true_ {};
+
+    // enables as_wstring[...]
+    template <>
+    struct use_directive<karma::domain, tag::as_wstring> 
+      : mpl::true_ {};
+
+    // enables as<T>[...]
+    template <typename T>
+    struct use_directive<karma::domain, tag::stateful_tag<T, tag::as> > 
+      : mpl::true_ 
+    {};
+}}
+
+namespace boost { namespace spirit { namespace karma
+{
+#ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
+    using spirit::as_string;
+    using spirit::as_wstring;
+#endif
+    using spirit::as_string_type;
+    using spirit::as_wstring_type;
+
+    ///////////////////////////////////////////////////////////////////////////
+    // as_directive allows to hook custom conversions to string into the
+    // output generation process
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Subject, typename T>
+    struct as_directive 
+      : unary_generator<as_directive<Subject, T> >
+    {
+        typedef Subject subject_type;
+        typedef typename subject_type::properties properties;
+
+        as_directive(Subject const& subject)
+          : subject(subject) {}
+
+        template <typename Context, typename Iterator>
+        struct attribute
+        {
+            typedef T type;
+        };
+
+        template <typename OutputIterator, typename Context, typename Delimiter
+          , typename Attribute>
+        bool generate(OutputIterator& sink, Context& ctx, Delimiter const& d
+          , Attribute const& attr) const
+        {
+            if (!traits::valid_as<T>(attr))
+                return false;
+
+            return subject.generate(sink, ctx, d, traits::as<T>(attr)) &&
+                    karma::delimit_out(sink, d); // always do post-delimiting
+        }
+
+        template <typename Context>
+        info what(Context& context) const
+        {
+            return info("as", subject.what(context));
+        }
+
+        Subject subject;
+    };
+
+    ///////////////////////////////////////////////////////////////////////////
+    // Generator generators: make_xxx function (objects)
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Subject, typename Modifiers>
+    struct make_directive<tag::as_string, Subject, Modifiers>
+    {
+        typedef as_directive<Subject, std::string> result_type;
+        result_type operator()(unused_type, Subject const& subject
+          , unused_type) const
+        {
+            return result_type(subject);
+        }
+    };
+
+    template <typename Subject, typename Modifiers>
+    struct make_directive<tag::as_wstring, Subject, Modifiers>
+    {
+        typedef as_directive<Subject, std::basic_string<wchar_t> > result_type;
+        result_type operator()(unused_type, Subject const& subject
+          , unused_type) const
+        {
+            return result_type(subject);
+        }
+    };
+    
+    template <typename T, typename Subject, typename Modifiers>
+    struct make_directive<tag::stateful_tag<T, tag::as>, Subject, Modifiers>
+    {
+        typedef as_directive<Subject, T> result_type;
+        result_type operator()(unused_type, Subject const& subject
+          , unused_type) const
+        {
+            return result_type(subject);
+        }
+    };
+}}}
+
+namespace boost { namespace spirit { namespace traits
+{
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Subject, typename T>
+    struct has_semantic_action<karma::as_directive<Subject, T> >
+      : unary_has_semantic_action<Subject> {};
+
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Subject, typename T, typename Attribute
+      , typename Context, typename Iterator>
+    struct handles_container<karma::as_directive<Subject, T>, Attribute
+      , Context, Iterator>
+      : mpl::false_ {};   // always dereference attribute if used in sequences
+}}}
+
+#endif