From 671c21451542e2dd20e45b4033d44d8e8735f87b Mon Sep 17 00:00:00 2001
From: Chris Dyer <redpony@gmail.com>
Date: Thu, 3 Dec 2009 16:33:55 -0500
Subject: initial check in

---
 src/lm_ff.h | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 src/lm_ff.h

(limited to 'src/lm_ff.h')

diff --git a/src/lm_ff.h b/src/lm_ff.h
new file mode 100644
index 00000000..cd717360
--- /dev/null
+++ b/src/lm_ff.h
@@ -0,0 +1,32 @@
+#ifndef _LM_FF_H_
+#define _LM_FF_H_
+
+#include <vector>
+#include <string>
+
+#include "hg.h"
+#include "ff.h"
+
+class LanguageModelImpl;
+
+class LanguageModel : public FeatureFunction {
+ public:
+  // param = "filename.lm [-o n]"
+  LanguageModel(const std::string& param);
+  ~LanguageModel();
+  virtual void FinalTraversalFeatures(const void* context,
+                                      SparseVector<double>* features) const;
+  std::string DebugStateToString(const void* state) const;
+ protected:
+  virtual void TraversalFeaturesImpl(const SentenceMetadata& smeta,
+                                     const Hypergraph::Edge& edge,
+                                     const std::vector<const void*>& ant_contexts,
+                                     SparseVector<double>* features,
+                                     SparseVector<double>* estimated_features,
+                                     void* out_context) const;
+ private:
+  const int fid_;
+  mutable LanguageModelImpl* pimpl_;
+};
+
+#endif
-- 
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