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  1. Qt
  2. QTBUG-135301

QString:: / QChar:: toCasefold / toUpper / toLower apply a mix of simple and full casefolding.

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    • 21
    • Foundation PM Staging

    Description

      As found in QTBUG-103043:

      • QString::toCasefold() uses simple case folding (C + S),
      • QChar::toCasefold() uses "incomplete" case folding (C),
      • QString::/QChar::toUpper()/toLower() use full case folding (C + F).

      This should be consistent, documented or at best be offered as option to the user.

      Source and explaination of C / F / S:
      https://www.unicode.org/Public/16.0.0/ucd/CaseFolding.txt

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          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-135825 QString::contains is inconsistent with QString::toUpper()/toLower().

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
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              Eddy Edward Welbourne
              matthias_rauter Matthias Rauter
              Vladimir Minenko Vladimir Minenko
              Alex Blasche Alex Blasche
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                Updated:

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