Add spellcheck and word suggestion to the prediction service

third_party/android_prediction/suggest/core/dictionary/error_type_utils.h

Index: third_party/android_prediction/suggest/core/dictionary/error_type_utils.h
diff --git a/third_party/android_prediction/suggest/core/dictionary/error_type_utils.h b/third_party/android_prediction/suggest/core/dictionary/error_type_utils.h
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index 0000000000000000000000000000000000000000..ace5a47f6e3668f98ab49096c145fa2ed6a2f830
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+++ b/third_party/android_prediction/suggest/core/dictionary/error_type_utils.h
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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_ERROR_TYPE_UTILS_H
+#define LATINIME_ERROR_TYPE_UTILS_H
+
+#include <cstdint>
+
+#include "third_party/android_prediction/defines.h"
+
+namespace latinime {
+
+class ErrorTypeUtils {
+ public:
+    // ErrorType is mainly decided by CorrectionType but it is also depending on if
+    // the correction has really been performed or not.
+    typedef uint32_t ErrorType;
+
+    static const ErrorType NOT_AN_ERROR;
+    static const ErrorType MATCH_WITH_CASE_ERROR;
+    static const ErrorType MATCH_WITH_ACCENT_ERROR;
+    static const ErrorType MATCH_WITH_DIGRAPH;
+    // Treat error as an intentional omission when the CorrectionType is omission and the node can
+    // be intentional omission.
+    static const ErrorType INTENTIONAL_OMISSION;
+    // Substitution, omission and transposition
+    static const ErrorType EDIT_CORRECTION;
+    // Proximity error
+    static const ErrorType PROXIMITY_CORRECTION;
+    // Completion
+    static const ErrorType COMPLETION;
+    // New word
+    // TODO: Remove.
+    // A new word error should be an edit correction error or a proximity correction error.
+    static const ErrorType NEW_WORD;
+
+    static bool isExactMatch(const ErrorType containedErrorTypes) {
+        return (containedErrorTypes & ~ERRORS_TREATED_AS_AN_EXACT_MATCH) == 0;
+    }
+
+    static bool isExactMatchWithIntentionalOmission(const ErrorType containedErrorTypes) {
+        return (containedErrorTypes
+                & ~ERRORS_TREATED_AS_AN_EXACT_MATCH_WITH_INTENTIONAL_OMISSION) == 0;
+    }
+
+    static bool isEditCorrectionError(const ErrorType errorType) {
+        return (errorType & EDIT_CORRECTION) != 0;
+    }
+
+    static bool isProximityCorrectionError(const ErrorType errorType) {
+        return (errorType & PROXIMITY_CORRECTION) != 0;
+    }
+
+    static bool isCompletion(const ErrorType errorType) {
+        return (errorType & COMPLETION) != 0;
+    }
+
+ private:
+    DISALLOW_IMPLICIT_CONSTRUCTORS(ErrorTypeUtils);
+
+    static const ErrorType ERRORS_TREATED_AS_AN_EXACT_MATCH;
+    static const ErrorType ERRORS_TREATED_AS_AN_EXACT_MATCH_WITH_INTENTIONAL_OMISSION;
+};
+} // namespace latinime
+#endif // LATINIME_ERROR_TYPE_UTILS_H