From 04f8b6bd6a59607c0f19d624660dc19492c71f87 Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Tue, 22 Dec 2015 08:08:39 -0500
Subject: [PATCH] Grammar: Added ::validate for consistency checking

---
 src/Grammar.cpp | 5 +++++
 src/Grammar.h   | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/src/Grammar.cpp b/src/Grammar.cpp
index b82cbab4..64c16a7a 100644
--- a/src/Grammar.cpp
+++ b/src/Grammar.cpp
@@ -160,3 +160,8 @@ std::string Grammar::dump () const
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+void Grammar::validate () const
+{
+}
+
+////////////////////////////////////////////////////////////////////////////////
diff --git a/src/Grammar.h b/src/Grammar.h
index 0f6ee07f..60f06dfb 100644
--- a/src/Grammar.h
+++ b/src/Grammar.h
@@ -60,6 +60,8 @@ protected:
   };
 
 private:
+  void validate () const;
+
   std::string _start;
   std::map <std::string, Grammar::Rule> _rules;
 };