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QRegExp replece issue

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  • M Offline
    M Offline
    mbnoimi
    wrote on last edited by
    #1

    Hi,

    I want separate the following string by "-" but unfortunately QRegExp doesn't match it

    rg

    (.*) - (.....) (.*)
    

    replace

    \1 - \2 - \3
    

    string

    KÜÇÜK OTOBÜS TAYO - S01E12 GEL ARKADAŞ OLALIM
    

    I expect to get

    KÜÇÜK OTOBÜS TAYO - S01E12 - GEL ARKADAŞ OLALIM
    
    Paul ColbyP 1 Reply Last reply
    0
    • M mbnoimi

      Hi,

      I want separate the following string by "-" but unfortunately QRegExp doesn't match it

      rg

      (.*) - (.....) (.*)
      

      replace

      \1 - \2 - \3
      

      string

      KÜÇÜK OTOBÜS TAYO - S01E12 GEL ARKADAŞ OLALIM
      

      I expect to get

      KÜÇÜK OTOBÜS TAYO - S01E12 - GEL ARKADAŞ OLALIM
      
      Paul ColbyP Offline
      Paul ColbyP Offline
      Paul Colby
      wrote on last edited by
      #2

      Hi @mbnoimi,

      The problem is that you don't have enough dots in the inner group - you have 5 dots, which matches 5 characters, but the input has 6 characters S01E12.

      # Doesn't work...
      paul@paul-XPS-13-9343:~$ echo 'KÜÇÜK OTOBÜS TAYO - S01E12 GEL ARKADAŞ OLALIM' | sed -re 's/(.*) - (.....) (.*)/\1 - \2 - \3/'
      KÜÇÜK OTOBÜS TAYO - S01E12 GEL ARKADAŞ OLALIM
      # Add another '.' and all is good :)
      paul@paul-XPS-13-9343:~$ echo 'KÜÇÜK OTOBÜS TAYO - S01E12 GEL ARKADAŞ OLALIM' | sed -re 's/(.*) - (......) (.*)/\1 - \2 - \3/'
      KÜÇÜK OTOBÜS TAYO - S01E12 - GEL ARKADAŞ OLALIM
      

      Cheers.

      M 1 Reply Last reply
      2
      • Paul ColbyP Paul Colby

        Hi @mbnoimi,

        The problem is that you don't have enough dots in the inner group - you have 5 dots, which matches 5 characters, but the input has 6 characters S01E12.

        # Doesn't work...
        paul@paul-XPS-13-9343:~$ echo 'KÜÇÜK OTOBÜS TAYO - S01E12 GEL ARKADAŞ OLALIM' | sed -re 's/(.*) - (.....) (.*)/\1 - \2 - \3/'
        KÜÇÜK OTOBÜS TAYO - S01E12 GEL ARKADAŞ OLALIM
        # Add another '.' and all is good :)
        paul@paul-XPS-13-9343:~$ echo 'KÜÇÜK OTOBÜS TAYO - S01E12 GEL ARKADAŞ OLALIM' | sed -re 's/(.*) - (......) (.*)/\1 - \2 - \3/'
        KÜÇÜK OTOBÜS TAYO - S01E12 - GEL ARKADAŞ OLALIM
        

        Cheers.

        M Offline
        M Offline
        mbnoimi
        wrote on last edited by
        #3

        @Paul-Colby said in QRegExp replece issue:

        The problem is that you don't have enough dots in the inner group - you have 5 dots, which matches 5 characters, but the input has 6 characters S01E12.

        Indeed! Thanks

        1 Reply Last reply
        0
        • VRoninV Offline
          VRoninV Offline
          VRonin
          wrote on last edited by
          #4

          side notes:

          • if you are using Qt5, do not use QRegExp, use QRegularExpression
          • .{6} is safer and faster than ......
          • be careful with the greediness of * operators here

          "La mort n'est rien, mais vivre vaincu et sans gloire, c'est mourir tous les jours"
          ~Napoleon Bonaparte

          On a crusade to banish setIndexWidget() from the holy land of Qt

          M 1 Reply Last reply
          2
          • VRoninV VRonin

            side notes:

            • if you are using Qt5, do not use QRegExp, use QRegularExpression
            • .{6} is safer and faster than ......
            • be careful with the greediness of * operators here
            M Offline
            M Offline
            mbnoimi
            wrote on last edited by
            #5

            @VRonin Thanks for advice,

            1 Reply Last reply
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