1 files changed, 58 insertions, 0 deletions

diff --git a/MoonParser/pegtl/contrib/counter.hpp b/MoonParser/pegtl/contrib/counter.hpp
new file mode 100644
index 0000000..52beb3b
--- /dev/null
+++ b/MoonParser/pegtl/contrib/counter.hpp
@@ -0,0 +1,58 @@
+// Copyright (c) 2014-2017 Dr. Colin Hirsch and Daniel Frey
+// Please see LICENSE for license or visit https://github.com/taocpp/PEGTL/
+
+#ifndef TAOCPP_PEGTL_INCLUDE_CONTRIB_COUNTER_HPP
+#define TAOCPP_PEGTL_INCLUDE_CONTRIB_COUNTER_HPP
+
+#include <cassert>
+#include <utility>
+
+#include "../config.hpp"
+#include "../normal.hpp"
+
+#include "../internal/demangle.hpp"
+
+namespace tao
+{
+   namespace TAOCPP_PEGTL_NAMESPACE
+   {
+      struct counter_data
+      {
+         unsigned start = 0;
+         unsigned success = 0;
+         unsigned failure = 0;
+      };
+
+      struct counter_state
+      {
+         std::map< std::string, counter_data > counts;
+      };
+
+      template< typename Rule >
+      struct counter
+         : normal< Rule >
+      {
+         template< typename Input >
+         static void start( const Input&, counter_state& ts )
+         {
+            ++ts.counts[ internal::demangle< Rule >() ].start;
+         }
+
+         template< typename Input >
+         static void success( const Input&, counter_state& ts )
+         {
+            ++ts.counts[ internal::demangle< Rule >() ].success;
+         }
+
+         template< typename Input >
+         static void failure( const Input&, counter_state& ts )
+         {
+            ++ts.counts[ internal::demangle< Rule >() ].failure;
+         }
+      };
+
+   }  // namespace TAOCPP_PEGTL_NAMESPACE
+
+}  // namespace tao
+
+#endif