Add spellcheck and word suggestion to the prediction service

third_party/android_prediction/suggest/policyimpl/dictionary/structure/v2/bigram/bigram_list_policy.h

Index: third_party/android_prediction/suggest/policyimpl/dictionary/structure/v2/bigram/bigram_list_policy.h
diff --git a/third_party/android_prediction/suggest/policyimpl/dictionary/structure/v2/bigram/bigram_list_policy.h b/third_party/android_prediction/suggest/policyimpl/dictionary/structure/v2/bigram/bigram_list_policy.h
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index 0000000000000000000000000000000000000000..7e03322651c0e0a51b30b1d4c15095b94e214bbb
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+/*
+ * 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_BIGRAM_LIST_POLICY_H
+#define LATINIME_BIGRAM_LIST_POLICY_H
+
+#include <cstdint>
+
+#include "third_party/android_prediction/defines.h"
+#include "third_party/android_prediction/suggest/core/policy/dictionary_bigrams_structure_policy.h"
+#include "third_party/android_prediction/suggest/policyimpl/dictionary/structure/pt_common/bigram/bigram_list_read_write_utils.h"
+
+namespace latinime {
+
+class BigramListPolicy : public DictionaryBigramsStructurePolicy {
+ public:
+    BigramListPolicy(const uint8_t *const bigramsBuf, const int bufSize)
+            : mBigramsBuf(bigramsBuf), mBufSize(bufSize) {}
+
+    ~BigramListPolicy() {}
+
+    void getNextBigram(int *const outBigramPos, int *const outProbability, bool *const outHasNext,
+            int *const pos) const {
+        BigramListReadWriteUtils::BigramFlags flags;
+        if (!BigramListReadWriteUtils::getBigramEntryPropertiesAndAdvancePosition(mBigramsBuf,
+                mBufSize, &flags, outBigramPos, pos)) {
+            AKLOGE("Cannot read bigram entry. mBufSize: %d, pos: %d. ", mBufSize, *pos);
+            *outProbability = NOT_A_PROBABILITY;
+            *outHasNext = false;
+            return;
+        }
+        *outProbability = BigramListReadWriteUtils::getProbabilityFromFlags(flags);
+        *outHasNext = BigramListReadWriteUtils::hasNext(flags);
+    }
+
+    bool skipAllBigrams(int *const pos) const {
+        return BigramListReadWriteUtils::skipExistingBigrams(mBigramsBuf, mBufSize, pos);
+    }
+
+ private:
+    DISALLOW_IMPLICIT_CONSTRUCTORS(BigramListPolicy);
+
+    const uint8_t *const mBigramsBuf;
+    const int mBufSize;
+};
+} // namespace latinime
+#endif // LATINIME_BIGRAM_LIST_POLICY_H