comparison DEPENDENCIES/generic/include/boost/spirit/home/lex/qi/plain_token.hpp @ 16:2665513ce2d3

Add boost headers

+//  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(BOOST_SPIRIT_LEX_PLAIN_TOKEN_NOV_11_2007_0451PM)
+#define BOOST_SPIRIT_LEX_PLAIN_TOKEN_NOV_11_2007_0451PM
+
+#if defined(_MSC_VER)
+#pragma once
+#endif
+
+#include <boost/spirit/home/support/info.hpp>
+#include <boost/spirit/home/qi/detail/attributes.hpp>
+#include <boost/spirit/home/support/common_terminals.hpp>
+#include <boost/spirit/home/support/handles_container.hpp>
+#include <boost/spirit/home/qi/skip_over.hpp>
+#include <boost/spirit/home/qi/domain.hpp>
+#include <boost/spirit/home/qi/parser.hpp>
+#include <boost/spirit/home/qi/meta_compiler.hpp>
+#include <boost/spirit/home/qi/detail/assign_to.hpp>
+#include <boost/range/iterator_range.hpp>
+#include <boost/fusion/include/vector.hpp>
+#include <boost/fusion/include/at.hpp>
+#include <boost/mpl/or.hpp>
+#include <boost/mpl/and.hpp>
+#include <boost/type_traits/is_integral.hpp>
+#include <boost/type_traits/is_enum.hpp>
+#include <boost/lexical_cast.hpp>
+
+namespace boost { namespace spirit
+{
+    ///////////////////////////////////////////////////////////////////////////
+    // Enablers
+    ///////////////////////////////////////////////////////////////////////////
+
+    // enables token
+    template <>
+    struct use_terminal<qi::domain, tag::token>
+      : mpl::true_ {};
+
+    // enables token(id)
+    template <typename A0>
+    struct use_terminal<qi::domain
+      , terminal_ex<tag::token, fusion::vector1<A0> >
+    > : mpl::or_<is_integral<A0>, is_enum<A0> > {};
+
+    // enables token(idmin, idmax)
+    template <typename A0, typename A1>
+    struct use_terminal<qi::domain
+      , terminal_ex<tag::token, fusion::vector2<A0, A1> >
+    > : mpl::and_<
+            mpl::or_<is_integral<A0>, is_enum<A0> >
+          , mpl::or_<is_integral<A1>, is_enum<A1> >
+        > {};
+
+    // enables *lazy* token(id)
+    template <>
+    struct use_lazy_terminal<
+        qi::domain, tag::token, 1
+    > : mpl::true_ {};
+
+    // enables *lazy* token(idmin, idmax)
+    template <>
+    struct use_lazy_terminal<
+        qi::domain, tag::token, 2
+    > : mpl::true_ {};
+}}
+
+namespace boost { namespace spirit { namespace qi
+{
+#ifndef BOOST_SPIRIT_NO_PREDEFINED_TERMINALS
+    using spirit::token;
+#endif
+    using spirit::token_type;
+
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename TokenId>
+    struct plain_token
+      : primitive_parser<plain_token<TokenId> >
+    {
+        template <typename Context, typename Iterator>
+        struct attribute
+        {
+            typedef typename Iterator::base_iterator_type iterator_type;
+            typedef iterator_range<iterator_type> type;
+        };
+
+        plain_token(TokenId const& id)
+          : id(id) {}
+
+        template <typename Iterator, typename Context
+          , typename Skipper, typename Attribute>
+        bool parse(Iterator& first, Iterator const& last
+          , Context& /*context*/, Skipper const& skipper
+          , Attribute& attr) const
+        {
+            qi::skip_over(first, last, skipper);   // always do a pre-skip
+
+            if (first != last) {
+                // simply match the token id with the id this component has
+                // been initialized with
+
+                typedef typename
+                    boost::detail::iterator_traits<Iterator>::value_type
+                token_type;
+                typedef typename token_type::id_type id_type;
+
+                token_type const& t = *first;
+                if (id_type(~0) == id_type(id) || id_type(id) == t.id()) {
+                    spirit::traits::assign_to(t, attr);
+                    ++first;
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        template <typename Context>
+        info what(Context& /*context*/) const
+        {
+            return info("token",
+                "token(" + boost::lexical_cast<utf8_string>(id) + ")");
+        }
+
+        TokenId id;
+    };
+
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename TokenId>
+    struct plain_token_range
+      : primitive_parser<plain_token_range<TokenId> >
+    {
+        template <typename Context, typename Iterator>
+        struct attribute
+        {
+            typedef typename Iterator::base_iterator_type iterator_type;
+            typedef iterator_range<iterator_type> type;
+        };
+
+        plain_token_range(TokenId const& idmin, TokenId const& idmax)
+          : idmin(idmin), idmax(idmax) {}
+
+        template <typename Iterator, typename Context
+          , typename Skipper, typename Attribute>
+        bool parse(Iterator& first, Iterator const& last
+          , Context& /*context*/, Skipper const& skipper
+          , Attribute& attr) const
+        {
+            qi::skip_over(first, last, skipper);   // always do a pre-skip
+
+            if (first != last) {
+                // simply match the token id with the id this component has
+                // been initialized with
+
+                typedef typename
+                    boost::detail::iterator_traits<Iterator>::value_type
+                token_type;
+                typedef typename token_type::id_type id_type;
+
+                token_type const& t = *first;
+                if (id_type(idmin) >= t.id() && id_type(idmin) <= t.id())
+                {
+                    spirit::traits::assign_to(t, attr);
+                    ++first;
+                    return true;
+                }
+            }
+            return false;
+        }
+
+        template <typename Context>
+        info what(Context& /*context*/) const
+        {
+            return info("token_range"
+              , "token(" +
+                    boost::lexical_cast<utf8_string>(idmin) + ", " +
+                    boost::lexical_cast<utf8_string>(idmax) + ")"
+            );
+            return info("token_range");
+        }
+
+        TokenId idmin, idmax;
+    };
+
+    ///////////////////////////////////////////////////////////////////////////
+    // Parser generators: make_xxx function (objects)
+    ///////////////////////////////////////////////////////////////////////////
+    template <typename Modifiers>
+    struct make_primitive<tag::token, Modifiers>
+    {
+        typedef plain_token<std::size_t> result_type;
+
+        result_type operator()(unused_type, unused_type) const
+        {
+            return result_type(std::size_t(~0));
+        }
+    };
+
+    template <typename Modifiers, typename TokenId>
+    struct make_primitive<terminal_ex<tag::token, fusion::vector1<TokenId> >
+      , Modifiers>
+    {
+        typedef plain_token<TokenId> result_type;
+
+        template <typename Terminal>
+        result_type operator()(Terminal const& term, unused_type) const
+        {
+            return result_type(fusion::at_c<0>(term.args));
+        }
+    };
+
+    template <typename Modifiers, typename TokenId>
+    struct make_primitive<terminal_ex<tag::token, fusion::vector2<TokenId, TokenId> >
+      , Modifiers>
+    {
+        typedef plain_token_range<TokenId> result_type;
+
+        template <typename Terminal>
+        result_type operator()(Terminal const& term, unused_type) const
+        {
+            return result_type(fusion::at_c<0>(term.args)
+              , fusion::at_c<1>(term.args));
+        }
+    };
+}}}
+
+namespace boost { namespace spirit { namespace traits
+{
+    ///////////////////////////////////////////////////////////////////////////
+    template<typename Idtype, typename Attr, typename Context, typename Iterator>
+    struct handles_container<qi::plain_token<Idtype>, Attr, Context, Iterator>
+      : mpl::true_
+    {};
+
+    template<typename Idtype, typename Attr, typename Context, typename Iterator>
+    struct handles_container<qi::plain_token_range<Idtype>, Attr, Context, Iterator>
+      : mpl::true_
+    {};
+}}}
+
+#endif