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  1. Qt
  2. QTBUG-122633

QLocale doesn't align with C library functions to let us use them for system locale data

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 4.5.1, 6.7
    • Core: Locales (i18n)
    • None
    • Any in which {{nl_langinfo()}} is considered the source of truth about user L10n; this may well include every system using {{glibc}}, the GNU C library.
    • Linux/Wayland, Linux/X11, Linux/Yocto, Linux/Other display system
    • 144

    Description

      As noted in QTBUG-122216 and discussed in this review, various C library functions – nl_langinfo(), strftime(), strfmon(), maybe others – provide access to locale-relevant data that the user may have configured. However, these do not align well with the CLDR data that QLocale otherwise uses, making it difficult to work out how to incorporate it into QSystemLocale without causing an "impedance mismatch" – most of the problems centre on "is that a short format or a long format ?"

      The bug mentioned above shows that (at least some) users expect QLocale::system() to agree with what the C library gives them; and the contribution whose review is linked above makes a reasonable attempt to square the circle, yet we do not have agreement on how to proceed.

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        Issue Links

          blocks

          Suggestion - Public suggestions QTBUG-58351 QLocale: Allow fully customized locale settings (user-configured date strings, etc)

          • P4: Low - Would be nice to fix, but it's not very important.
          • Open
          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-128572 QLocale not obeying system configuration

          • Not Evaluated - Not yet evaluated/prioritized
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-122216 Qt Linux does not respect locale

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Reported

          Task - A task that needs to be done. QTBUG-70516 Extend Qt's support for CLDR date/time formatting

          • P3: Somewhat important - Should be fixed, but doesn't affect the release in any way.
          • Open

          Task - A task that needs to be done. QTBUG-109955 Implement system query for digit grouping rules

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • In Review
          For Gerrit Dashboard: QTBUG-122633
          # Subject Branch Project Status CR V
          448802,23 QLocale: use real system APIs rather than CLDR data on Unix dev qt/qtbase Status: ABANDONED 0 0

          Activity

            People

              Eddy Edward Welbourne
              Eddy Edward Welbourne
              Vladimir Minenko Vladimir Minenko
              Alex Blasche Alex Blasche
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              Dates

                Created:
                Updated:

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