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[Solved]Wrong QRegExp

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  • R Offline
    R Offline
    Ruzik
    wrote on last edited by
    #1

    Hellow, i have this code:
    @ QString str = "asin(";
    str.replace(QRegExp("[^a]{0,1}sin\("),"yes!");
    qDebug() << str;@
    And i get "yes!", why is it happened?
    In advance thank for your help!

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    • L Offline
      L Offline
      loladiro
      wrote on last edited by
      #2

      Your reg exp is saying match everything where there is everything except for an a one or zero times before the sin.

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      • R Offline
        R Offline
        Ruzik
        wrote on last edited by
        #3

        How can i changed it, on the this site http://gskinner.com/RegExr/ all worked ok, why it is hapanned?

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        • D Offline
          D Offline
          DenisKormalev
          wrote on last edited by
          #4

          You should have "ayes!" based on this regexp. Are you sure you have "yes!" only?

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          • R Offline
            R Offline
            Ruzik
            wrote on last edited by
            #5

            Sorry, but i do not fully understand what you said, this is full code whitch i used
            @QString text = lineEdit->text();
            // text, for example = "asin", and after replace it should be = "asin"
            text.replace(QRegExp("[^a]{0,1}sin\("),"Math.sin(");@

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            • L Offline
              L Offline
              loladiro
              wrote on last edited by
              #6

              [quote author="Ruzik" date="1313230274"]How can i changed it, on the this site http://gskinner.com/RegExr/ all worked ok, why it is hapanned?[/quote]

              "No it didn't":http://regexr.com?2uer8
              Just remove the {0,1} to make it work. However this will also select the character before the sin(. May I suggest something like \bsin( or usage of subexpressions.

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              • R Offline
                R Offline
                Ruzik
                wrote on last edited by
                #7

                Ok, thank you for help!

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