Add spellcheck and word suggestion to the prediction service

third_party/android_prediction/suggest/policyimpl/dictionary/structure/pt_common/pt_node_array_reader.h

Index: third_party/android_prediction/suggest/policyimpl/dictionary/structure/pt_common/pt_node_array_reader.h
diff --git a/third_party/android_prediction/suggest/policyimpl/dictionary/structure/pt_common/pt_node_array_reader.h b/third_party/android_prediction/suggest/policyimpl/dictionary/structure/pt_common/pt_node_array_reader.h
new file mode 100644
index 0000000000000000000000000000000000000000..6dfe6854e1ca6eb6051ba31c02dc04d9bbe4de75
--- /dev/null
+++ b/third_party/android_prediction/suggest/policyimpl/dictionary/structure/pt_common/pt_node_array_reader.h
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2014, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef LATINIME_PT_NODE_ARRAY_READER_H
+#define LATINIME_PT_NODE_ARRAY_READER_H
+
+#include "third_party/android_prediction/defines.h"
+
+namespace latinime {
+
+// Interface class used to read PtNode array information.
+class PtNodeArrayReader {
+ public:
+    virtual ~PtNodeArrayReader() {}
+
+    // Returns if the position is valid or not.
+    virtual bool readPtNodeArrayInfoAndReturnIfValid(const int ptNodeArrayPos,
+            int *const outPtNodeCount, int *const outFirstPtNodePos) const = 0;
+
+    // Returns if the position is valid or not. NOT_A_DICT_POS is set to outNextPtNodeArrayPos when
+    // the next array doesn't exist.
+    virtual bool readForwardLinkAndReturnIfValid(const int forwordLinkPos,
+            int *const outNextPtNodeArrayPos) const = 0;
+
+ protected:
+    PtNodeArrayReader() {};
+
+ private:
+    DISALLOW_COPY_AND_ASSIGN(PtNodeArrayReader);
+};
+} // namespace latinime
+#endif /* LATINIME_PT_NODE_READER_H */