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/*
* 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.
*/
#include "annotator/datetime/utils.h"
namespace libtextclassifier3 {
void FillInterpretations(const DatetimeParsedData& parse,
const DatetimeGranularity& granularity,
std::vector<DatetimeParsedData>* interpretations) {
DatetimeParsedData modified_parse(parse);
// If the relation field is not set, but relation_type field *is*, assume
// the relation field is NEXT_OR_SAME. This is necessary to handle e.g.
// "monday 3pm" (otherwise only "this monday 3pm" would work).
if (parse.HasFieldType(DatetimeComponent::ComponentType::DAY_OF_WEEK)) {
DatetimeComponent::RelativeQualifier relative_value;
if (parse.GetRelativeValue(DatetimeComponent::ComponentType::DAY_OF_WEEK,
&relative_value)) {
if (relative_value == DatetimeComponent::RelativeQualifier::UNSPECIFIED) {
modified_parse.SetRelativeValue(
DatetimeComponent::ComponentType::DAY_OF_WEEK,
DatetimeComponent::RelativeQualifier::THIS);
}
}
}
// Multiple interpretations of ambiguous datetime expressions are generated
// here.
if (granularity > DatetimeGranularity::GRANULARITY_DAY &&
modified_parse.HasFieldType(DatetimeComponent::ComponentType::HOUR) &&
!modified_parse.HasRelativeValue(
DatetimeComponent::ComponentType::HOUR) &&
!modified_parse.HasFieldType(
DatetimeComponent::ComponentType::MERIDIEM)) {
int hour_value;
modified_parse.GetFieldValue(DatetimeComponent::ComponentType::HOUR,
&hour_value);
if (hour_value <= 12) {
modified_parse.SetAbsoluteValue(
DatetimeComponent::ComponentType::MERIDIEM, 0);
interpretations->push_back(modified_parse);
modified_parse.SetAbsoluteValue(
DatetimeComponent::ComponentType::MERIDIEM, 1);
interpretations->push_back(modified_parse);
} else {
interpretations->push_back(modified_parse);
}
} else {
// Otherwise just generate 1 variant.
interpretations->push_back(modified_parse);
}
}
int GetAdjustedYear(const int parsed_year) {
if (parsed_year < 100) {
if (parsed_year < 50) {
return parsed_year + 2000;
} else {
return parsed_year + 1900;
}
}
return parsed_year;
}
} // namespace libtextclassifier3