1 files changed, 21 insertions, 0 deletions
diff --git a/mteval/ns_ext.h b/mteval/ns_ext.h
new file mode 100644
index 00000000..78badb2e
--- /dev/null
+++ b/mteval/ns_ext.h
@@ -0,0 +1,21 @@
+#ifndef _NS_EXTERNAL_SCORER_H_
+#define _NS_EXTERNAL_SCORER_H_
+
+#include "ns.h"
+
+struct NScoreServer;
+class ExternalMetric : public EvaluationMetric {
+ public:
+  ExternalMetric(const std::string& metricid, const std::string& command);
+  ~ExternalMetric();
+
+  virtual void ComputeSufficientStatistics(const std::vector<WordID>& hyp,
+                                           const std::vector<std::vector<WordID> >& refs,
+                                           SufficientStats* out) const;
+  virtual float ComputeScore(const SufficientStats& stats) const;
+
+ protected:
+  NScoreServer* eval_server;
+};
+
+#endif