Initial Commit

2018-02-08 21:28:33 -05:00
commit 678c1d3966
14352 changed files with 3176737 additions and 0 deletions
@@ -0,0 +1,150 @@
+/*=============================================================================
+    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_DIFFERENCE_HPP)
+#define BOOST_SPIRIT_DIFFERENCE_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
+
+    ///////////////////////////////////////////////////////////////////////////
+    //
+    //  difference: a - b; Matches a but not b
+    //
+    //      Handles expressions of the form:
+    //
+    //          a - b
+    //
+    //      where a and b are parsers. The expression returns a composite
+    //      parser that matches a but not b. One (not both) of the operands
+    //      may be a literal char, wchar_t or a primitive string char const*,
+    //      wchar_t const*.
+    //
+    ///////////////////////////////////////////////////////////////////////////
+    struct difference_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 difference
+    :   public binary<A, B, parser<difference<A, B> > >
+    {
+        typedef difference<A, B>                self_t;
+        typedef binary_parser_category          parser_category_t;
+        typedef difference_parser_gen           parser_generator_t;
+        typedef binary<A, B, parser<self_t> >   base_t;
+    
+        difference(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;
+            typedef typename ScannerT::iterator_t iterator_t;
+            iterator_t save = scan.first;
+            if (result_t hl = this->left().parse(scan))
+            {
+                std::swap(save, scan.first);
+                result_t hr = this->right().parse(scan);
+                if (!hr || (hr.length() < hl.length()))
+                {
+                    scan.first = save;
+                    return hl;
+                }
+            }
+    
+            return scan.no_match();
+        }
+    };
+
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
+#pragma warning(pop)
+#endif
+    
+    struct difference_parser_gen
+    {
+        template <typename A, typename B>
+        struct result 
+        {
+            typedef 
+                difference<
+                    typename as_parser<A>::type
+                  , typename as_parser<B>::type
+                > 
+            type;
+        };
+    
+        template <typename A, typename B>
+        static difference<
+            typename as_parser<A>::type
+          , typename as_parser<B>::type
+        >
+        generate(A const& a, B const& b)
+        {
+            return difference<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>
+    difference<A, B>
+    operator-(parser<A> const& a, parser<B> const& b);
+    
+    template <typename A>
+    difference<A, chlit<char> >
+    operator-(parser<A> const& a, char b);
+    
+    template <typename B>
+    difference<chlit<char>, B>
+    operator-(char a, parser<B> const& b);
+    
+    template <typename A>
+    difference<A, strlit<char const*> >
+    operator-(parser<A> const& a, char const* b);
+    
+    template <typename B>
+    difference<strlit<char const*>, B>
+    operator-(char const* a, parser<B> const& b);
+    
+    template <typename A>
+    difference<A, chlit<wchar_t> >
+    operator-(parser<A> const& a, wchar_t b);
+    
+    template <typename B>
+    difference<chlit<wchar_t>, B>
+    operator-(wchar_t a, parser<B> const& b);
+    
+    template <typename A>
+    difference<A, strlit<wchar_t const*> >
+    operator-(parser<A> const& a, wchar_t const* b);
+    
+    template <typename B>
+    difference<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/difference.ipp>