Add spellcheck and word suggestion to the prediction service

third_party/prediction/suggest/policyimpl/dictionary/structure/pt_common/shortcut/shortcut_list_reading_utils.h

Index: third_party/prediction/suggest/policyimpl/dictionary/structure/pt_common/shortcut/shortcut_list_reading_utils.h
diff --git a/third_party/prediction/suggest/policyimpl/dictionary/structure/pt_common/shortcut/shortcut_list_reading_utils.h b/third_party/prediction/suggest/policyimpl/dictionary/structure/pt_common/shortcut/shortcut_list_reading_utils.h
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index 0000000000000000000000000000000000000000..c3c6d87b7eff0ba5a3ca1444b0bff51887037594
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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_SHORTCUT_LIST_READING_UTILS_H
+#define LATINIME_SHORTCUT_LIST_READING_UTILS_H
+
+#include <cstdint>
+
+#include "third_party/prediction/defines.h"
+
+namespace latinime {
+
+class ShortcutListReadingUtils {
+ public:
+  typedef uint8_t ShortcutFlags;
+
+  static ShortcutFlags getFlagsAndForwardPointer(const uint8_t* const dictRoot,
+                                                 int* const pos);
+
+  static AK_FORCE_INLINE int getProbabilityFromFlags(
+      const ShortcutFlags flags) {
+    return flags & MASK_ATTRIBUTE_PROBABILITY;
+  }
+
+  static AK_FORCE_INLINE bool hasNext(const ShortcutFlags flags) {
+    return (flags & FLAG_ATTRIBUTE_HAS_NEXT) != 0;
+  }
+
+  // This method returns the size of the shortcut list region excluding the
+  // shortcut list size
+  // field at the beginning.
+  static int getShortcutListSizeAndForwardPointer(const uint8_t* const dictRoot,
+                                                  int* const pos);
+
+  static AK_FORCE_INLINE int getShortcutListSizeFieldSize() {
+    return SHORTCUT_LIST_SIZE_FIELD_SIZE;
+  }
+
+  static AK_FORCE_INLINE void skipShortcuts(const uint8_t* const dictRoot,
+                                            int* const pos) {
+    const int shortcutListSize =
+        getShortcutListSizeAndForwardPointer(dictRoot, pos);
+    *pos += shortcutListSize;
+  }
+
+  static AK_FORCE_INLINE bool isWhitelist(const ShortcutFlags flags) {
+    return getProbabilityFromFlags(flags) == WHITELIST_SHORTCUT_PROBABILITY;
+  }
+
+  static int readShortcutTarget(const uint8_t* const dictRoot,
+                                const int maxLength,
+                                int* const outWord,
+                                int* const pos);
+
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(ShortcutListReadingUtils);
+
+  static const ShortcutFlags FLAG_ATTRIBUTE_HAS_NEXT;
+  static const ShortcutFlags MASK_ATTRIBUTE_PROBABILITY;
+  static const int SHORTCUT_LIST_SIZE_FIELD_SIZE;
+  static const int WHITELIST_SHORTCUT_PROBABILITY;
+};
+}  // namespace latinime
+#endif  // LATINIME_SHORTCUT_LIST_READING_UTILS_H