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Dart Library Mimicking the Unified Code for Units of Measure Library Functionality

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Dart Library Mimicking the Unified Code for Units of Measure FHIR Library Functionality

All credit goes to (I assume Graham) and everyone else who built this library in Java. With the help of ChatGPT, I've managed to get it to work in Dart.

As does the original library, this package provides a set of services around UCUM:

  • first step in using this library is getting the Ucum service
    ucumService = await getUcumEssenceService();
  • validate a UCUM unit (and also against a particular base unit)
  • decide whether one unit can be converted/compared to another
  • translate a quantity from one unit to another
    await ucumService.convert(Decimal.fromString('15'), '/min', '/h');
  • prepare a human readable display of a unit
  • multiply 2 quantities together

While I'll be maintaining this package, I want to ensure I give proper credit everywhere it's due #

/******************************************************************************* BSD 3-Clause License

Copyright (c) 2023, Grey Faulkenberry All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

  • Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

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  • Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*******************************************************************************/

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Dart Library Mimicking the Unified Code for Units of Measure Library Functionality

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