60 lines
2.6 KiB
C++
60 lines
2.6 KiB
C++
/*
|
|
* Copyright (C) 2018 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 LIBTEXTCLASSIFIER_ANNOTATOR_GRAMMAR_DATES_UTILS_ANNOTATION_KEYS_H_
|
|
#define LIBTEXTCLASSIFIER_ANNOTATOR_GRAMMAR_DATES_UTILS_ANNOTATION_KEYS_H_
|
|
|
|
namespace libtextclassifier3 {
|
|
namespace dates {
|
|
|
|
// Date time specific constants not defined in standard schemas.
|
|
//
|
|
// Date annotator output two type of annotation. One is date&time like "May 1",
|
|
// "12:20pm", etc. Another is range like "2pm - 3pm". The two string identify
|
|
// the type of annotation and are used as type in Thing proto.
|
|
extern const char* const kDateTimeType;
|
|
extern const char* const kDateTimeRangeType;
|
|
|
|
// kDateTime contains most common field for date time. It's integer array and
|
|
// the format is (year, month, day, hour, minute, second, fraction_sec,
|
|
// day_of_week). All eight fields must be provided. If the field is not
|
|
// extracted, the value is -1 in the array.
|
|
extern const char* const kDateTime;
|
|
|
|
// kDateTimeSupplementary contains uncommon field like timespan, timezone. It's
|
|
// integer array and the format is (bc_ad, timespan_code, timezone_code,
|
|
// timezone_offset). Al four fields must be provided. If the field is not
|
|
// extracted, the value is -1 in the array.
|
|
extern const char* const kDateTimeSupplementary;
|
|
|
|
// kDateTimeRelative contains fields for relative date time. It's integer
|
|
// array and the format is (is_future, year, month, day, week, hour, minute,
|
|
// second, day_of_week, dow_interpretation*). The first nine fields must be
|
|
// provided and dow_interpretation could have zero or multiple values.
|
|
// If the field is not extracted, the value is -1 in the array.
|
|
extern const char* const kDateTimeRelative;
|
|
|
|
// Date time range specific constants not defined in standard schemas.
|
|
// kDateTimeRangeFrom and kDateTimeRangeTo define the from/to of a date/time
|
|
// range. The value is thing object which contains a date time.
|
|
extern const char* const kDateTimeRangeFrom;
|
|
extern const char* const kDateTimeRangeTo;
|
|
|
|
} // namespace dates
|
|
} // namespace libtextclassifier3
|
|
|
|
#endif // LIBTEXTCLASSIFIER_ANNOTATOR_GRAMMAR_DATES_UTILS_ANNOTATION_KEYS_H_
|