1 files changed, 39 insertions, 0 deletions
diff --git a/extractor/alignment.h b/extractor/alignment.h
new file mode 100644
index 00000000..e9292121
--- /dev/null
+++ b/extractor/alignment.h
@@ -0,0 +1,39 @@
+#ifndef _ALIGNMENT_H_
+#define _ALIGNMENT_H_
+
+#include <string>
+#include <vector>
+
+#include <boost/filesystem.hpp>
+
+namespace fs = boost::filesystem;
+using namespace std;
+
+namespace extractor {
+
+/**
+ * Data structure storing the word alignments for a parallel corpus.
+ */
+class Alignment {
+ public:
+  // Reads alignment from text file.
+  Alignment(const string& filename);
+
+  // Returns the alignment for a given sentence.
+  virtual vector<pair<int, int> > GetLinks(int sentence_index) const;
+
+  // Writes alignment to file in binary format.
+  void WriteBinary(const fs::path& filepath);
+
+  virtual ~Alignment();
+
+ protected:
+  Alignment();
+
+ private:
+  vector<vector<pair<int, int> > > alignments;
+};
+
+} // namespace extractor
+
+#endif