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[Solved]Program exited with code 0

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  • G Offline
    G Offline
    gayu
    wrote on last edited by
    #7

    The index is initialized to '0'.
    Some formats are there to enter the Question and Answers in Database, through editor.
    While the Question is entered the parseQuestion function is called.
    While the Answer is entered the parseOption function is called.
    In the parseOption function, the condition is checked. The function includes the index,option,stmt,phrase .
    The phrase is the one entered within the '| ' (eg |Lotus\ is our national flower) In this eg to highlight "Lotus" we are using the '| ' symbol.
    In the above eg Lotus is the phrase, if any stmt seen before the phrase is considered as stmt1,and after the phrase is the stmt2.

    I give another eg.

    If i am entering a Ques and Ans like this

    What is Qt?
    Qt is a |cross platform application framework
    Qt is a is the stmt1
    *|cross platform application framework* is the phrase

    While running with above eg my code runs fine and every thing enters into the database.

    But when i am entering like this

    What is Qt?
    Qt is a |cross platform application framework\ .
    Qt is a is the stmt1
    *|cross platform application framework* is the phrase
    .. is considered as the stmt2 and returns the index value as '-1' since there is no '|'
    The following is the condition it checks for the stmt2, and no '|' is seen so returning '-1'

    until for stmt1 amd the phrase it reads the index value as +ve value only.
    bt when reading the stmt2 it is returning '-1'.

    @
    while(option[index] != '|')
    {
    stmt1[j] = option[index];
    cout<<"stmt1[j]\n"<<stmt1<<endl;
    if(option[index]=='\0')
    {
    stmt1[j] = '\0';
    option[0] = '\0';
    return -1; //here it returns '-1'
    }
    index++;
    j++;
    }
    @

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    • A Offline
      A Offline
      AlekseyOk
      wrote on last edited by
      #8

      You should check for '|' and NOT '\0'.

      E.g.:

      @
      while(option[index] != '|' &&
      option[index] != '\0')
      @

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      • G Offline
        G Offline
        gayu
        wrote on last edited by
        #9

        I used some cout stmts to check wat the option of index is.
        The option[index] is printing as the "|" symbol.
        After the stmt1 the "|" is seen and return the option[index] as "|" and returning the index value as +ve value.
        Then when coming to the stmt2 it checks the condition, "|" . The condition is not get satisfied returning "-1".

        And I also tried wat u said,
        @
        1.
        while(option[index] != '|' &&
        2.
        option[index] != '\0')
        @
        It is not taking the phrase value,only it reads the stmt1, and exit from the editor.

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        • A Offline
          A Offline
          AlekseyOk
          wrote on last edited by
          #10

          try to add you check

          @
          if(option[index]=='\0')
          {
          stmt1[j] = '\0';
          option[0] = '\0';
          return -1; //here it returns '-1'
          }
          @

          after the loop if you want to exit with code -1.

          Why are you using this loop instead of "QString::indexOf":http://qt-project.org/doc/qt-4.8/qstring.html#indexOf

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          • G Offline
            G Offline
            gayu
            wrote on last edited by
            #11

            Ya i checked by adding the "if" after the loop.
            But it doesn't exit from the loop, runs until i stop the execution.

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            • A Offline
              A Offline
              AlekseyOk
              wrote on last edited by
              #12
              1. Is option a QString?
              2. Is option ends with '\0'?

              If 1 and 2 are true than this loop shouldn't be infinite.

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              • G Offline
                G Offline
                gayu
                wrote on last edited by
                #13

                ya the option is QString only.
                You asked me to check the "if" by adding it after the loop. By adding it after the loop only becomes infinite.

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                • A Offline
                  A Offline
                  AlekseyOk
                  wrote on last edited by
                  #14

                  Should this help?

                  @
                  int pos1 = option.indexOf('|');
                  if (pos1 != -1)
                  {
                  stmt1 = option.left(pos1);

                  int pos2 = option.indexOf('\\', pos1);
                  if (pos2 != -1)
                  {
                      phrase = option.mid(pos1, pos2 - pos1);
                  }
                  

                  else
                  {
                  // there is no '|' symbol in option
                  }
                  @

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                  • G Offline
                    G Offline
                    gayu
                    wrote on last edited by
                    #15

                    Ya i tried tis by replacing tat, bt it is still the same not exiting from the loop, also printing the stmt as null.

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                    • A Offline
                      A Offline
                      AlekseyOk
                      wrote on last edited by
                      #16

                      You shouldn't use a single backslash in option string, because it will be processed as '.' in second case.
                      So, before processing, replace single backslashes with doubled or select another symbol

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                      • G Offline
                        G Offline
                        gayu
                        wrote on last edited by
                        #17

                        This means whether you are asking me to use double backslash in the phrase itself or at the end of last stmt i've to put double backslash.

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                        • G Offline
                          G Offline
                          gayu
                          wrote on last edited by
                          #18

                          By trying with this code,

                          @
                          1.int pos1 = option.indexOf('|');
                          2.if (pos1 != -1)
                          3. {
                          4. stmt1 = option.left(pos1);
                          5. int pos2 = option.indexOf('\', pos1);
                          7. if (pos2 != -1)
                          8. {
                          9. phrase = option.mid(pos1, pos2 - pos1);
                          10 }
                          11. else
                          12. {
                          13. // there is no '|' symbol in option
                          14. }
                          @
                          I am getting this error "commitdb.cpp:1219: error: a function-definition is not allowed here before ‘{’ token" in some other functions.
                          so i removed this code and compile with the the original code itself.@@

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                          • A Offline
                            A Offline
                            AlekseyOk
                            wrote on last edited by
                            #19

                            add } before else

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                            • G Offline
                              G Offline
                              gayu
                              wrote on last edited by
                              #20

                              Ya i added }
                              Now it is not exiting from the editor and its working.
                              But, the question is entering into database finely, the answer is not entering to the database (i.e options) printing the null values for option,stmt1 and stmt2 . Also the null values are entering to database more than once

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                              • A Offline
                                A Offline
                                AlekseyOk
                                wrote on last edited by
                                #21

                                Sorry, I don't understand what you do you want.

                                1. Insert some values into some db?
                                2. something else?
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                                • G Offline
                                  G Offline
                                  gayu
                                  wrote on last edited by
                                  #22

                                  no through editor i am entering the Ques and answer also
                                  The xml file generates, from the xml file to database it is entering, bt the Ques is entering into the database correctly.
                                  The options i.e Qt is a |cross platform\ appln framework is the Answer stmt.
                                  Bt this enters the database as null value only not the stmt or phrase

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                                  • A Offline
                                    A Offline
                                    AlekseyOk
                                    wrote on last edited by
                                    #23

                                    My code is not processing statements with asterisk (*), so you should add this by yourself ;-)

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                                    • G Offline
                                      G Offline
                                      gayu
                                      wrote on last edited by
                                      #24

                                      No thats not my problem.

                                      After replacing my code with the code wat u give me to replace with, the following is the table entries now.

                                      The following table for Question entries

                                      QNo | Question | QueLocLang | Board | Subject | Chapter | PageNo

                                      4724 | What is Qt? | NULL | Tamil Nadu | EnglishI | 1 | 1

                                      4725 | Who is Sachin? | NULL | Tamil Nadu | EnglishI | 1 | 1

                                      The table entries for Answers is,
                                      More than one time it is entering like the following

                                      APNo | Statement1 | Statement2 | Option1 | QNo

                                      80563 | | NULL | | 4724

                                      80564 | | NULL | | 4724

                                      80565 | | NULL | | 4724

                                      80566 | | NULL | | 4725

                                      80567 | | NULL | | 4725

                                      80568 | | NULL | | 4725

                                      The actual Answer table should be like,

                                      APNo | Statement1 | Statement2 | Option1 | QNo

                                      80563 | Qt is a | NULL | cross platform application framework | 4724

                                      80564 | | is sachin | A famous crickter | 4725

                                      But i am not getting like this. I am just getting the empty values for stmt1,option.

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                                      • G Offline
                                        G Offline
                                        gayu
                                        wrote on last edited by
                                        #25

                                        Instead of the following code

                                        @
                                        int mainForm::parseOption(int ind,QString option, QString &stmt1, QString &phrase)
                                        {
                                        QTextStream cout(stdout, QIODevice::WriteOnly);
                                        int j = 0;
                                        int index = ind;
                                        cout<<"index---\n"<<index<<endl;
                                        cout<<"311 : parseOption : "<<option<<endl;
                                        cout<<"option[index]--\n"<<option[index]<<endl;
                                        while(option[index] != '|')
                                        {
                                        stmt1[j] = option[index];
                                        cout<<"stmt1[j]\n"<<stmt1<<endl;
                                        if(option[index]=='\0')
                                        {
                                        cout<<"option[index]-----\n"<<option[index]<<endl;
                                        stmt1[j] = '\0';
                                        option[0] = '\0';
                                        return -1;
                                        // return (index);
                                        }
                                        index++;
                                        j++;
                                        }
                                        stmt1[j] = '\0';
                                        stmt1=stmt1.replace( "{sub}","<sub>");
                                        stmt1=stmt1.replace( "{/sub}","</sub>" );

                                        while(option[index] != '\')
                                        {
                                        phrase[j] = option[index];
                                        index++;
                                        j++;
                                        }

                                        cout<<"425 : "<<stmt1<<endl;
                                        j = 0;
                                        index++;
                                        cout<<"option[index]-->\n"<<option[index]<<endl;
                                        phrase=phrase.replace( "{sub}","<sub>" );
                                        phrase=phrase.replace( "{sub}","<sub>" );
                                        cout<<"Phrase value"<<phrase<<endl;
                                        phrase[j] = '\0';
                                        cout<<"436 : "<<phrase<<endl;

                                        return (index + 1);

                                        }
                                        @

                                        I added the code u asked me to add

                                        @

                                        1.  int pos1 = option.indexOf('|');
                                          
                                        2.  if (pos1 != -1)
                                          
                                        3.  {
                                          
                                        4.    stmt1 = option.left(pos1);
                                          
                                        5.      int pos2 = option.indexOf('\\', pos1);
                                          
                                        6.      if (pos2 != -1)
                                          
                                        7.      {
                                          
                                        8.          phrase = option.mid(pos1, pos2 - pos1);
                                          
                                        9.      }
                                          
                                        10. else
                                          
                                        11. {
                                        12. // there is no '|' symbol in option
                                        13.  }
                                          

                                        @

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                                        • A Offline
                                          A Offline
                                          AlekseyOk
                                          wrote on last edited by
                                          #26

                                          I've already checked my code and it works fine (actually, you can change line 9 with phrase = option.mid(pos1 + 1, pos2 - pos1); to remove leading '|').

                                          Input: "Qt is a |cross platform application framework."
                                          Output: stmt1 = "Qt is a "
                                          phrase = ""cross platform application framework"

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