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How can i convert Utf-8 encoding to normal text

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  • R raven-worx
    23 Aug 2016, 13:16

    @Rohith said:

    I want to display the Original Text from Utf-8 encoding,how can i do it i have tried several methods but not succeeded.

    what exactly does that mean? What do you expect as original text?

    Also regarding "you only get UTF-8 text", the Qt docs for QTextCodec::fromUnicode(QString) say:

    Converts str from Unicode to the encoding of this codec, and returns the result in a QByteArray.

    so when you create a text codec for UTF-8 you will get UTF-8.

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    Rohith
    wrote on 24 Aug 2016, 04:04 last edited by
    #4

    @raven-worx

    "I want to display the Original Text from Utf-8 encoding,how can i do it i have tried several methods but not succeeded."

    This mean, i will get some data from Encoded data from the server and the data will be in UTF-8 encoding and i am storing the data into a file that i have received from server assume that BENGALI Text was encoded in to UTF-8 encoding by the server and was sent to me and for the end user when ever he opts to see the data i want to show him the Bengali Text by using the UTF-8 encoding data that was present in the File.

    Server->sends UTF-8 encoding of some bengali text->the UTF-8 encoding stored in to file->user wants to see data in file->it should be converted to bengali from UTF-8 and to be shown to the user.

    I hope you understood now

    Thanks in advance,
    Rohith.G

    R 1 Reply Last reply 24 Aug 2016, 05:51
    0
    • R Rohith
      24 Aug 2016, 04:04

      @raven-worx

      "I want to display the Original Text from Utf-8 encoding,how can i do it i have tried several methods but not succeeded."

      This mean, i will get some data from Encoded data from the server and the data will be in UTF-8 encoding and i am storing the data into a file that i have received from server assume that BENGALI Text was encoded in to UTF-8 encoding by the server and was sent to me and for the end user when ever he opts to see the data i want to show him the Bengali Text by using the UTF-8 encoding data that was present in the File.

      Server->sends UTF-8 encoding of some bengali text->the UTF-8 encoding stored in to file->user wants to see data in file->it should be converted to bengali from UTF-8 and to be shown to the user.

      I hope you understood now

      Thanks in advance,
      Rohith.G

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      raven-worx
      Moderators
      wrote on 24 Aug 2016, 05:51 last edited by
      #5

      @Rohith
      unfortunately i do not understand yet.
      Unicode should contain the Bengali characters no? So it should be displayed correctly?!
      Where do you dont get your desired output displayed? Is it only about the qDebug output?

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      R 1 Reply Last reply 24 Aug 2016, 06:25
      1
      • R raven-worx
        24 Aug 2016, 05:51

        @Rohith
        unfortunately i do not understand yet.
        Unicode should contain the Bengali characters no? So it should be displayed correctly?!
        Where do you dont get your desired output displayed? Is it only about the qDebug output?

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        Rohith
        wrote on 24 Aug 2016, 06:25 last edited by
        #6

        @raven-worx

        Let me try one more time

        I am converting Bengali letters into** Utf-8 encoding** and i am storing the **converted Utf-8 encoding of Bengali letters in to a file **and, i want to read the data present in the file i.e i want to the Utf-8 encoded text from file and i want to convert encoding i.e Utf-8 encoded data into bengali letters and then i want to display the Bengali data that came from Utf-8 encoding that was present in file.

        R 1 Reply Last reply 24 Aug 2016, 06:31
        0
        • R Rohith
          24 Aug 2016, 06:25

          @raven-worx

          Let me try one more time

          I am converting Bengali letters into** Utf-8 encoding** and i am storing the **converted Utf-8 encoding of Bengali letters in to a file **and, i want to read the data present in the file i.e i want to the Utf-8 encoded text from file and i want to convert encoding i.e Utf-8 encoded data into bengali letters and then i want to display the Bengali data that came from Utf-8 encoding that was present in file.

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          raven-worx
          Moderators
          wrote on 24 Aug 2016, 06:31 last edited by
          #7

          @Rohith said:

          convert encoding i.e Utf-8 encoded data into bengali letters

          the question is what encoding do you expect for the "bengali letters"?!
          Since the bengali characters can already be stored using UTF-8 encoding!

          Still u didn't tell me where you have problems displaying it...

          --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
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          R 1 Reply Last reply 24 Aug 2016, 06:53
          0
          • R raven-worx
            24 Aug 2016, 06:31

            @Rohith said:

            convert encoding i.e Utf-8 encoded data into bengali letters

            the question is what encoding do you expect for the "bengali letters"?!
            Since the bengali characters can already be stored using UTF-8 encoding!

            Still u didn't tell me where you have problems displaying it...

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            Rohith
            wrote on 24 Aug 2016, 06:53 last edited by
            #8

            @raven-worx
            Here I am trying to convert Bengali Unicode to Bengali text and print that.
            Bengali Unicode is present in file, and I am trying to read that Unicode from file and convert it to original Bengali text

            This is Original Bengali Text :- "সবাইকে শুভ সকাল"
            The unicode reading from file :- \u09b8\u09ac\u09be\u0987\u0995\u09c7 \u09b6\u09c1\u09ad \u09b8\u0995\u09be\u09b2

            O/P to be shown after reading unicode from file :- সবাইকে শুভ সকাল

            We are getting problem that whenever we are trying to read unicode from file dynamically and convert to original text.

            As we are passing unicode Text statically its working fine.

            R 1 Reply Last reply 24 Aug 2016, 07:00
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            • R Rohith
              24 Aug 2016, 06:53

              @raven-worx
              Here I am trying to convert Bengali Unicode to Bengali text and print that.
              Bengali Unicode is present in file, and I am trying to read that Unicode from file and convert it to original Bengali text

              This is Original Bengali Text :- "সবাইকে শুভ সকাল"
              The unicode reading from file :- \u09b8\u09ac\u09be\u0987\u0995\u09c7 \u09b6\u09c1\u09ad \u09b8\u0995\u09be\u09b2

              O/P to be shown after reading unicode from file :- সবাইকে শুভ সকাল

              We are getting problem that whenever we are trying to read unicode from file dynamically and convert to original text.

              As we are passing unicode Text statically its working fine.

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              raven-worx
              Moderators
              wrote on 24 Aug 2016, 07:00 last edited by
              #9

              @Rohith said:

              The unicode reading from file :- \u09b8\u09ac\u09be\u0987\u0995\u09c7 \u09b6\u09c1\u09ad \u09b8\u0995\u09be\u09b2

              You mean this is the content of the file as text-representation?
              Can you please upload an example file?

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              R 1 Reply Last reply 24 Aug 2016, 07:07
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              • R raven-worx
                24 Aug 2016, 07:00

                @Rohith said:

                The unicode reading from file :- \u09b8\u09ac\u09be\u0987\u0995\u09c7 \u09b6\u09c1\u09ad \u09b8\u0995\u09be\u09b2

                You mean this is the content of the file as text-representation?
                Can you please upload an example file?

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                Rohith
                wrote on 24 Aug 2016, 07:07 last edited by
                #10

                @raven-worx

                Yeah that is what i mean

                \u09b8\u09ac\u09be\u0987\u0995\u09c7 \u09b6\u09c1\u09ad \u09b8\u0995\u09be\u09b2

                save this content in to a .txt file and try to read the content form the file and present it as normal text

                here i am not getting how to upload file in this forum

                R 1 Reply Last reply 24 Aug 2016, 07:12
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                • R Rohith
                  24 Aug 2016, 07:07

                  @raven-worx

                  Yeah that is what i mean

                  \u09b8\u09ac\u09be\u0987\u0995\u09c7 \u09b6\u09c1\u09ad \u09b8\u0995\u09be\u09b2

                  save this content in to a .txt file and try to read the content form the file and present it as normal text

                  here i am not getting how to upload file in this forum

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                  raven-worx
                  Moderators
                  wrote on 24 Aug 2016, 07:12 last edited by raven-worx
                  #11

                  @Rohith
                  finally we get together, since this is an important info.
                  You then have to "parse" the text data to the desired unicode representation.

                  QString str = ...; // read from the file
                  int idx = -1;
                  while ( ( idx = str.indexOf("\\u") ) != -1 )
                  {
                        int uc = str.mid(idx+2, 4).toInt(0,16);
                        str.replace(idx, 6, QChar(uc));
                  }
                  

                  The reason it worked "statically" for you was, that the compiler already did the correct interpretation for you during compilation.

                  --- 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

                  R 1 Reply Last reply 24 Aug 2016, 09:11
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                  • R raven-worx
                    24 Aug 2016, 07:12

                    @Rohith
                    finally we get together, since this is an important info.
                    You then have to "parse" the text data to the desired unicode representation.

                    QString str = ...; // read from the file
                    int idx = -1;
                    while ( ( idx = str.indexOf("\\u") ) != -1 )
                    {
                          int uc = str.mid(idx+2, 4).toInt(0,16);
                          str.replace(idx, 6, QChar(uc));
                    }
                    

                    The reason it worked "statically" for you was, that the compiler already did the correct interpretation for you during compilation.

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                    Rohith
                    wrote on 24 Aug 2016, 09:11 last edited by
                    #12

                    @raven-worx

                    Thanks it worked....!

                    R 1 Reply Last reply 24 Aug 2016, 09:17
                    0
                    • R Rohith
                      24 Aug 2016, 09:11

                      @raven-worx

                      Thanks it worked....!

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                      raven-worx
                      Moderators
                      wrote on 24 Aug 2016, 09:17 last edited by raven-worx
                      #13

                      @Rohith
                      just to clarify:
                      To transfer this information this way is rather resource wasteful.
                      Since you create for 1 Unicode character 6 ASCII characters. This means (roughly - not exact) a factor of 6. Additionally you have to do the parsing.

                      If possible i would change it, so the unicode text is transfered as "RAW" unicode in binary format.

                      --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
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                      R 1 Reply Last reply 24 Aug 2016, 09:36
                      0
                      • R raven-worx
                        24 Aug 2016, 09:17

                        @Rohith
                        just to clarify:
                        To transfer this information this way is rather resource wasteful.
                        Since you create for 1 Unicode character 6 ASCII characters. This means (roughly - not exact) a factor of 6. Additionally you have to do the parsing.

                        If possible i would change it, so the unicode text is transfered as "RAW" unicode in binary format.

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                        Rohith
                        wrote on 24 Aug 2016, 09:36 last edited by
                        #14

                        @raven-worx

                        If possible please provide me that too..!

                        Thanks,
                        Rohith.G

                        R 1 Reply Last reply 24 Aug 2016, 09:45
                        0
                        • R Rohith
                          24 Aug 2016, 09:36

                          @raven-worx

                          If possible please provide me that too..!

                          Thanks,
                          Rohith.G

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                          raven-worx
                          Moderators
                          wrote on 24 Aug 2016, 09:45 last edited by
                          #15

                          @Rohith
                          instead of converting the unicode string to the escaped characters send it directly in binary form. When you have a QString already you can call QString::toUtf8() and send the returned QByteArray directly. On the client its enough to do QString::fromUtf8( receivedUtf8ByteArray.constData() )

                          It depends how you implemented the transfer.
                          But theoretically it should be enough to replace your unicode escaping code on the server with this approach.

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                          24 Aug 2016, 09:17

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