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QString encoding problem

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  • S Offline
    S Offline
    sonulohani
    wrote on last edited by sonulohani
    #1

    Hi,
    I have a code in Qt5 which looks like this:-

    QString str("âáéì");

    Whenever I am converting it to C++ std::string using toStdString(), Its giving me invalid characters. I have tried all encoding and its not working at all. I have my Qt built with ICU libs. Please help me in this regard.

    BTW if i print QString using qDebug() its printing ????

    T raven-worxR 2 Replies Last reply
    0
    • S sonulohani

      Hi,
      I have a code in Qt5 which looks like this:-

      QString str("âáéì");

      Whenever I am converting it to C++ std::string using toStdString(), Its giving me invalid characters. I have tried all encoding and its not working at all. I have my Qt built with ICU libs. Please help me in this regard.

      BTW if i print QString using qDebug() its printing ????

      T Offline
      T Offline
      Tikani
      wrote on last edited by
      #2

      @sonulohani
      What version of Qt5?

      1 Reply Last reply
      0
      • S sonulohani

        Hi,
        I have a code in Qt5 which looks like this:-

        QString str("âáéì");

        Whenever I am converting it to C++ std::string using toStdString(), Its giving me invalid characters. I have tried all encoding and its not working at all. I have my Qt built with ICU libs. Please help me in this regard.

        BTW if i print QString using qDebug() its printing ????

        raven-worxR Offline
        raven-worxR Offline
        raven-worx
        Moderators
        wrote on last edited by
        #3

        @sonulohani
        the problem is when you insert it this way the default encoding from the compiler/file is taken. Which is most probably not what you want for special characters.

        Use the unicode escaping syntax to ensure the correct character data. e.g. "\uf02a" or whatever.

        @sonulohani said in QString encoding problem:

        Whenever I am converting it to C++ std::string using toStdString(), Its giving me invalid characters.

        how do you excactly check for those "invalid" characters?

        --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
        If you have a question please use the forum so others can benefit from the solution in the future

        S 1 Reply Last reply
        2
        • raven-worxR raven-worx

          @sonulohani
          the problem is when you insert it this way the default encoding from the compiler/file is taken. Which is most probably not what you want for special characters.

          Use the unicode escaping syntax to ensure the correct character data. e.g. "\uf02a" or whatever.

          @sonulohani said in QString encoding problem:

          Whenever I am converting it to C++ std::string using toStdString(), Its giving me invalid characters.

          how do you excactly check for those "invalid" characters?

          S Offline
          S Offline
          sonulohani
          wrote on last edited by
          #4

          @raven-worx Hi, thanks for the answer. And if i get \u**** output, how do i convert it into the character.

          raven-worxR 1 Reply Last reply
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          • S sonulohani

            @raven-worx Hi, thanks for the answer. And if i get \u**** output, how do i convert it into the character.

            raven-worxR Offline
            raven-worxR Offline
            raven-worx
            Moderators
            wrote on last edited by
            #5

            @sonulohani said in QString encoding problem:

            how do i convert it into the character.

            what do you mean?
            A "character" is just data. It just matters if you interpret it as a (Unicode-)character.
            Thats why i asked how you exactly check for those "invalid" characters?

            --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
            If you have a question please use the forum so others can benefit from the solution in the future

            1 Reply Last reply
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