Add spellcheck and word suggestion to the prediction service

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

Index: third_party/android_prediction/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.h
diff --git a/third_party/android_prediction/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.h b/third_party/android_prediction/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_writing_utils.h
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index 0000000000000000000000000000000000000000..f60266c09bf554f234bb3f289fe33345d2620c6c
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@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2013, 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_DYNAMIC_PT_WRITING_UTILS_H
+#define LATINIME_DYNAMIC_PT_WRITING_UTILS_H
+
+#include <cstddef>
+
+#include "third_party/android_prediction/defines.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/pt_common/dynamic_pt_reading_utils.h"
+
+namespace latinime {
+
+class BufferWithExtendableBuffer;
+
+class DynamicPtWritingUtils {
+ public:
+    static const int NODE_FLAG_FIELD_SIZE;
+
+    static bool writeEmptyDictionary(BufferWithExtendableBuffer *const buffer, const int rootPos);
+
+    static bool writeForwardLinkPositionAndAdvancePosition(
+            BufferWithExtendableBuffer *const buffer, const int forwardLinkPos,
+            int *const forwardLinkFieldPos);
+
+    static bool writePtNodeArraySizeAndAdvancePosition(BufferWithExtendableBuffer *const buffer,
+            const size_t arraySize, int *const arraySizeFieldPos);
+
+    static bool writeFlags(BufferWithExtendableBuffer *const buffer,
+            const DynamicPtReadingUtils::NodeFlags nodeFlags,
+            const int nodeFlagsFieldPos) {
+        int writingPos = nodeFlagsFieldPos;
+        return writeFlagsAndAdvancePosition(buffer, nodeFlags, &writingPos);
+    }
+
+    static bool writeFlagsAndAdvancePosition(BufferWithExtendableBuffer *const buffer,
+            const DynamicPtReadingUtils::NodeFlags nodeFlags,
+            int *const nodeFlagsFieldPos);
+
+    static bool writeParentPosOffsetAndAdvancePosition(BufferWithExtendableBuffer *const buffer,
+            const int parentPosition, const int basePos, int *const parentPosFieldPos);
+
+    static bool writeCodePointsAndAdvancePosition(BufferWithExtendableBuffer *const buffer,
+            const int *const codePoints, const int codePointCount, int *const codePointFieldPos);
+
+    static bool writeChildrenPositionAndAdvancePosition(BufferWithExtendableBuffer *const buffer,
+            const int childrenPosition, int *const childrenPositionFieldPos);
+
+ private:
+    DISALLOW_IMPLICIT_CONSTRUCTORS(DynamicPtWritingUtils);
+
+    static const size_t MAX_PTNODE_ARRAY_SIZE_TO_USE_SMALL_SIZE_FIELD;
+    static const size_t MAX_PTNODE_ARRAY_SIZE;
+    static const int SMALL_PTNODE_ARRAY_SIZE_FIELD_SIZE;
+    static const int LARGE_PTNODE_ARRAY_SIZE_FIELD_SIZE;
+    static const int LARGE_PTNODE_ARRAY_SIZE_FIELD_SIZE_FLAG;
+    static const int DICT_OFFSET_FIELD_SIZE;
+    static const int MAX_DICT_OFFSET_VALUE;
+    static const int MIN_DICT_OFFSET_VALUE;
+    static const int DICT_OFFSET_NEGATIVE_FLAG;
+
+    static bool writeDictOffset(BufferWithExtendableBuffer *const buffer, const int targetPos,
+            const int basePos, int *const offsetFieldPos);
+};
+} // namespace latinime
+#endif /* LATINIME_DYNAMIC_PT_WRITING_UTILS_H */