From ef087a7b3515658d581a18c94d5fe134afdd976c Mon Sep 17 00:00:00 2001
From: Paul Beckingham <paul@beckingham.net>
Date: Sun, 27 Dec 2015 12:18:02 -0500
Subject: [PATCH] LR0: Implemented Item::dump

---
 src/LR0.cpp | 22 ++++++++++++++++++++++
 src/LR0.h   |  1 +
 2 files changed, 23 insertions(+)

diff --git a/src/LR0.cpp b/src/LR0.cpp
index a1a77174..00411aeb 100644
--- a/src/LR0.cpp
+++ b/src/LR0.cpp
@@ -175,3 +175,25 @@ bool LR0::Item::advance ()
 }
 
 ////////////////////////////////////////////////////////////////////////////////
+std::string LR0::Item::dump () const
+{
+  std::stringstream out;
+
+  for (unsigned int i = 0; i < _rule.size (); ++i)
+  {
+    if (i)
+      out << " ";
+
+    if (i == _cursor)
+      out << "● ";
+
+    out << _rule[i];
+  }
+
+  if (_cursor >= _rule.size ())
+    out << " ●";
+
+  return out.str ();
+}
+
+////////////////////////////////////////////////////////////////////////////////
diff --git a/src/LR0.h b/src/LR0.h
index 1172bdcd..268b37ad 100644
--- a/src/LR0.h
+++ b/src/LR0.h
@@ -45,6 +45,7 @@ public:
   public:
     Item (const std::vector <std::string>&);
     bool advance ();
+    std::string dump () const;
 
   private:
     std::vector <std::string> _rule;