From c0a7a203cfe58312dc48cf1d05d3bf0c8a91f19b Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Sat, 2 Jan 2016 14:42:06 -0500
Subject: [PATCH] LR0: Added ::expand

---
 src/LR0.cpp | 8 ++++++++
 src/LR0.h   | 1 +
 2 files changed, 9 insertions(+)

diff --git a/src/LR0.cpp b/src/LR0.cpp
index 5d174678..e13135b8 100644
--- a/src/LR0.cpp
+++ b/src/LR0.cpp
@@ -126,6 +126,14 @@ std::set <std::string> LR0::getExpected (const Closure& closure)
   return expected;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+LR0::Closure LR0::expand (const Closure& closure) const
+{
+  LR0::Closure result;
+
+  return closure;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // Aho/Sethi/Ullman, p224
 //
diff --git a/src/LR0.h b/src/LR0.h
index cdaa2d80..f0566838 100644
--- a/src/LR0.h
+++ b/src/LR0.h
@@ -70,6 +70,7 @@ public:
 private:
   Closure getClosure (const Closure&);
   std::set <std::string> getExpected (const Closure&);
+  Closure expand (const Closure&) const;
 
 private:
   // Copy of the augmented grammar.