Initial Commit

2018-02-08 21:28:33 -05:00
commit 678c1d3966
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+/*=============================================================================
+    Copyright (c) 1998-2003 Joel de Guzman
+    Copyright (c) 2001 Daniel Nuffer
+    Copyright (c) 2002 Hartmut Kaiser
+    http://spirit.sourceforge.net/
+
+  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_SEQUENCE_HPP)
+#define BOOST_SPIRIT_SEQUENCE_HPP
+
+#include <boost/spirit/home/classic/namespace.hpp>
+#include <boost/spirit/home/classic/core/parser.hpp>
+#include <boost/spirit/home/classic/core/primitives/primitives.hpp>
+#include <boost/spirit/home/classic/core/composite/composite.hpp>
+#include <boost/spirit/home/classic/meta/as_parser.hpp>
+
+namespace boost { namespace spirit {
+
+BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
+
+    ///////////////////////////////////////////////////////////////////////////
+    //
+    //  sequence class
+    //
+    //      Handles expressions of the form:
+    //
+    //          a >> b
+    //
+    //      where a and b are parsers. The expression returns a composite
+    //      parser that matches a and b in sequence. One (not both) of the
+    //      operands may be a literal char, wchar_t or a primitive string
+    //      char const*, wchar_t const*.
+    //
+    //////////////////////////////////////////////////////////////////////////
+    struct sequence_parser_gen;
+    
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(push)
+#pragma warning(disable:4512) //assignment operator could not be generated
+#endif
+
+    template <typename A, typename B>
+    struct sequence : public binary<A, B, parser<sequence<A, B> > >
+    {
+        typedef sequence<A, B>                  self_t;
+        typedef binary_parser_category          parser_category_t;
+        typedef sequence_parser_gen             parser_generator_t;
+        typedef binary<A, B, parser<self_t> >   base_t;
+    
+        sequence(A const& a, B const& b)
+        : base_t(a, b) {}
+    
+        template <typename ScannerT>
+        typename parser_result<self_t, ScannerT>::type
+        parse(ScannerT const& scan) const
+        {
+            typedef typename parser_result<self_t, ScannerT>::type result_t;
+            if (result_t ma = this->left().parse(scan))
+                if (result_t mb = this->right().parse(scan))
+                {
+                    scan.concat_match(ma, mb);
+                    return ma;
+                }
+            return scan.no_match();
+        }
+    };
+
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(pop)
+#endif
+    
+    struct sequence_parser_gen
+    {
+        template <typename A, typename B>
+        struct result 
+        {
+            typedef
+                sequence<
+                    typename as_parser<A>::type
+                  , typename as_parser<B>::type
+                >
+            type;
+        };
+    
+        template <typename A, typename B>
+        static sequence<
+            typename as_parser<A>::type
+          , typename as_parser<B>::type
+        >
+        generate(A const& a, B const& b)
+        {
+            return sequence<BOOST_DEDUCED_TYPENAME as_parser<A>::type,
+                BOOST_DEDUCED_TYPENAME as_parser<B>::type>
+                    (as_parser<A>::convert(a), as_parser<B>::convert(b));
+        }
+    };
+    
+    template <typename A, typename B>
+    sequence<A, B>
+    operator>>(parser<A> const& a, parser<B> const& b);
+    
+    template <typename A>
+    sequence<A, chlit<char> >
+    operator>>(parser<A> const& a, char b);
+    
+    template <typename B>
+    sequence<chlit<char>, B>
+    operator>>(char a, parser<B> const& b);
+    
+    template <typename A>
+    sequence<A, strlit<char const*> >
+    operator>>(parser<A> const& a, char const* b);
+    
+    template <typename B>
+    sequence<strlit<char const*>, B>
+    operator>>(char const* a, parser<B> const& b);
+    
+    template <typename A>
+    sequence<A, chlit<wchar_t> >
+    operator>>(parser<A> const& a, wchar_t b);
+    
+    template <typename B>
+    sequence<chlit<wchar_t>, B>
+    operator>>(wchar_t a, parser<B> const& b);
+    
+    template <typename A>
+    sequence<A, strlit<wchar_t const*> >
+    operator>>(parser<A> const& a, wchar_t const* b);
+    
+    template <typename B>
+    sequence<strlit<wchar_t const*>, B>
+    operator>>(wchar_t const* a, parser<B> const& b);
+    
+BOOST_SPIRIT_CLASSIC_NAMESPACE_END
+
+}} // namespace BOOST_SPIRIT_CLASSIC_NS
+
+#endif
+
+#include <boost/spirit/home/classic/core/composite/impl/sequence.ipp>