1 files changed, 88 insertions, 0 deletions
diff --git a/contrib/moses2/SCFG/InputPaths.cpp b/contrib/moses2/SCFG/InputPaths.cpp
new file mode 100644
index 000000000..e1c3f9d21
--- /dev/null
+++ b/contrib/moses2/SCFG/InputPaths.cpp
@@ -0,0 +1,88 @@
+/*
+ * InputPaths.cpp
+ *
+ *  Created on: 23 Oct 2015
+ *      Author: hieu
+ */
+#include <boost/foreach.hpp>
+#include <iostream>
+#include "InputPaths.h"
+#include "Sentence.h"
+#include "../System.h"
+#include "../legacy/Range.h"
+#include "Manager.h"
+#include "InputPath.h"
+#include "Word.h"
+
+using namespace std;
+
+namespace Moses2
+{
+namespace SCFG
+{
+void InputPaths::Init(const InputType &input, const ManagerBase &mgr)
+{
+  const Sentence &sentence = static_cast<const Sentence&>(input);
+  MemPool &pool = mgr.GetPool();
+  size_t numPt = mgr.system.mappings.size();
+  size_t size = sentence.GetSize();
+  //cerr << "size=" << size << endl;
+
+  m_matrix = new (pool.Allocate< Matrix<SCFG::InputPath*> >()) Matrix<SCFG::InputPath*>(pool,
+      size, size + 1);
+  m_matrix->Init(NULL);
+
+  for (size_t startPos = 0; startPos < size; ++startPos) {
+    // create path for 0 length string
+    Range range(startPos, startPos - 1);
+    SubPhrase<SCFG::Word> subPhrase = sentence.GetSubPhrase(startPos, 0);
+
+    SCFG::InputPath *path = new (pool.Allocate<SCFG::InputPath>()) SCFG::InputPath(pool,
+        subPhrase, range, numPt, NULL);
+    //cerr << "path=" << *path << endl;
+    m_inputPaths.push_back(path);
+    m_matrix->SetValue(startPos, 0, path);
+
+    // create normal paths of subphrases through the sentence
+    const SCFG::InputPath *prefixPath = path;
+    for (size_t phaseSize = 1; phaseSize <= size; ++phaseSize) {
+      size_t endPos = startPos + phaseSize - 1; // pb-like indexing. eg. [1-1] covers 1 word, NOT 0
+
+      if (endPos >= size) {
+        break;
+      }
+
+      SubPhrase<SCFG::Word> subPhrase = sentence.GetSubPhrase(startPos, phaseSize);
+      Range range(startPos, endPos);
+
+      SCFG::InputPath *path = new (pool.Allocate<SCFG::InputPath>())
+          SCFG::InputPath(pool, subPhrase, range, numPt, prefixPath);
+      //cerr << "path=" << *path << endl;
+      m_inputPaths.push_back(path);
+
+      prefixPath = path;
+      m_matrix->SetValue(startPos, phaseSize, path);
+    }
+  }
+
+}
+
+std::string InputPaths::Debug(const System &system) const
+{
+  stringstream out;
+  const Matrix<InputPath*> &matrix = GetMatrix();
+  for (size_t i = 0; i < matrix.GetRows(); ++i) {
+    for (size_t j = 0; j < matrix.GetCols(); ++j) {
+      SCFG::InputPath *path = matrix.GetValue(i, j);
+      if (path) {
+        out << path->Debug(system);
+        out << endl;
+      }
+    }
+  }
+  return out.str();
+}
+
+}
+}
+