1 files changed, 69 insertions, 0 deletions

diff --git a/MoonParser/pegtl/internal/minus.hpp b/MoonParser/pegtl/internal/minus.hpp
new file mode 100644
index 0000000..88242e5
--- /dev/null
+++ b/MoonParser/pegtl/internal/minus.hpp
@@ -0,0 +1,69 @@
+// Copyright (c) 2016-2017 Dr. Colin Hirsch and Daniel Frey
+// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/
+
+#ifndef TAOCPP_PEGTL_INCLUDE_INTERNAL_MINUS_HPP
+#define TAOCPP_PEGTL_INCLUDE_INTERNAL_MINUS_HPP
+
+#include "../config.hpp"
+
+#include "skip_control.hpp"
+
+#include "../apply_mode.hpp"
+#include "../memory_input.hpp"
+#include "../rewind_mode.hpp"
+
+namespace tao
+{
+   namespace TAOCPP_PEGTL_NAMESPACE
+   {
+      namespace internal
+      {
+         inline const char* source_pointer( const char* source ) noexcept
+         {
+            return source;
+         }
+
+         inline const char* source_pointer( const std::string& source ) noexcept
+         {
+            return source.c_str();
+         }
+
+         template< typename R, typename S >
+         struct minus
+         {
+            using analyze_t = typename R::analyze_t;  // NOTE: S is currently ignored for analyze().
+
+            template< apply_mode A,
+                      rewind_mode,
+                      template< typename... > class Action,
+                      template< typename... > class Control,
+                      typename Input,
+                      typename... States >
+            static bool match( Input& in, States&&... st )
+            {
+               auto m = in.template mark< rewind_mode::REQUIRED >();
+
+               if( !Control< R >::template match< A, rewind_mode::ACTIVE, Action, Control >( in, st... ) ) {
+                  return false;
+               }
+               memory_input< tracking_mode::LAZY, typename Input::eol_t, const char* > i2( m.iterator(), in.current(), source_pointer( in.source() ) );
+
+               if( !Control< S >::template match< apply_mode::NOTHING, rewind_mode::ACTIVE, Action, Control >( i2, st... ) ) {
+                  return m( true );
+               }
+               return m( !i2.empty() );
+            }
+         };
+
+         template< typename R, typename S >
+         struct skip_control< minus< R, S > > : std::true_type
+         {
+         };
+
+      }  // namespace internal
+
+   }  // namespace TAOCPP_PEGTL_NAMESPACE
+
+}  // namespace tao
+
+#endif