Added Exclude toUri.
diff --git a/ndn-cpp/interest.cpp b/ndn-cpp/interest.cpp
index b9a4b69..f84dd7a 100644
--- a/ndn-cpp/interest.cpp
+++ b/ndn-cpp/interest.cpp
@@ -36,6 +36,25 @@
   }
 }
 
+string Exclude::toUri() const
+{
+	if (entries_.size() == 0)
+		return "";
+
+  ostringstream result;
+  for (unsigned i = 0; i < entries_.size(); ++i) {
+    if (i > 0)
+      result << ",";
+        
+    if (entries_[i].getType() == ndn_Exclude_ANY)
+      result << "*";
+    else
+      Name::toEscapedString(entries_[i].getComponent().getValue(), result);
+  }
+  
+  return result.str();  
+}
+
 void Interest::set(const struct ndn_Interest &interestStruct) 
 {
   name_.set(interestStruct.name);
diff --git a/ndn-cpp/interest.hpp b/ndn-cpp/interest.hpp
index 149c606..c27af5b 100644
--- a/ndn-cpp/interest.hpp
+++ b/ndn-cpp/interest.hpp
@@ -107,6 +107,12 @@
     entries_.clear();
   }
   
+  /**
+   * Encode this Exclude with elements separated by "," and ndn_Exclude_ANY shown as "*".
+   * @return the URI string
+   */
+  std::string toUri() const;
+  
 private:
   std::vector<ExcludeEntry> entries_;
 };