From eac94e99bf60cd94a51ff0c9bf491a84ea964c4a Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Tue, 5 Jan 2016 02:21:08 -0500
Subject: [PATCH] LR0: Now copies lists of grammar rules and terminals

---
 src/LR0.cpp | 14 +++++++++++++-
 src/LR0.h   |  4 +++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/LR0.cpp b/src/LR0.cpp
index 3d0d0e96..0aaf8109 100644
--- a/src/LR0.cpp
+++ b/src/LR0.cpp
@@ -42,8 +42,10 @@ LR0::LR0 ()
 // - Recursively create and expand all the other states
 void LR0::initialize (const Grammar& grammar)
 {
-  // Obtain the augmented grammar.
+  // Save important grammar information.
   _augmented = grammar.augmented ();
+  _rules     = grammar.rules ();
+  _terminals = grammar.terminals ();
 
   if (_debug)
   {
@@ -57,6 +59,16 @@ void LR0::initialize (const Grammar& grammar)
       std::cout << "\n";
     }
 
+    std::cout << "\n";
+    std::cout << "Rules\n";
+    for (auto& r : _rules)
+      std::cout << "  " << r << "\n";
+
+    std::cout << "\n";
+    std::cout << "Terminals\n";
+    for (auto& t : _terminals)
+      std::cout << "  " << t << "\n";
+
     std::cout << "\n";
   }
 
diff --git a/src/LR0.h b/src/LR0.h
index 402bf968..74523637 100644
--- a/src/LR0.h
+++ b/src/LR0.h
@@ -75,8 +75,10 @@ private:
   void createParseTable (States&);
 
 private:
-  // Copy of the augmented grammar.
+  // Copy of the  grammar details.
   std::vector <std::vector <std::string>> _augmented;
+  std::vector <std::string>               _rules;
+  std::vector <std::string>               _terminals;
 
   //        state        column       result
   //        |            |            |