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/************************************************************************
*
* Copyright (C) 2024 IRCAD France
*
* This file is part of Sight.
*
* Sight is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sight is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#include "series_impl.hpp"
namespace sight::data::detail
{
//------------------------------------------------------------------------------
std::string shrink(const std::string& _source)
{
std::string result(_source);
result.erase(result.find_last_not_of(NULL_PADDING_CHAR) + 1);
return result;
}
//------------------------------------------------------------------------------
std::optional<std::string> get_private_string_value(const gdcm::DataSet& _dataset, const gdcm::Tag& _tag)
{
if(!_dataset.FindDataElement(_tag))
{
return std::nullopt;
}
const auto& data_element = _dataset.GetDataElement(_tag);
if(data_element.IsEmpty())
{
return std::nullopt;
}
const auto* byte_value = data_element.GetByteValue();
if(byte_value == nullptr || byte_value->GetPointer() == nullptr)
{
return std::nullopt;
}
return shrink(gdcm::String<>(byte_value->GetPointer(), byte_value->GetLength()).Trim());
}
} // namespace sight::data::detail
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