in reply to Re: Basic question
in thread Basic question

Thank you, Abigail.
Are you sure of you? That is, are you sure that under mod-perl it is not possible that $Report be empty? My idea is that the scope of the variables could be different between the "main" and note()? And this, not in standard perl but in mod-perl.
Pierre

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Re: Basic question
by Abigail-II (Bishop) on Aug 20, 2003 at 10:46 UTC
    Of course it's possible that the scope of main and note is different. That's why I asked you to write a stand-alone piece of code, and not a piece of code where we have to fill in the blanks.

    If you leave out the "...." in your code, it's impossible that $Report is empty, except for some bug in the implementation.

    Abigail

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      If you leave out the "...." in your code, it's impossible that $Report is empty

      Sorry, wrong. The part that is "left out" is mod_perl, which was clearly mentioned in the root node, and what it adds isn't where the "..."s in the shown code are.

      What it produces is close to: 

      sub script {
  my $Report="";
  sub note {
      my ($titre,$texte) = @_;
      my $Texte= '<H5>'.$titre.'</H5>­<P>'.$texte.'</P>';
      $Report .=$Texte;
  }
  note($title,$text);
  print STDERR "*update.pl: end \n[\n$Report\n]\n";
}

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      and each time the page is displayed: 
      script()

      [download]
      And that results in $Report being empty every time it is run except for the first. Certainly not "impossible".

                      - tye
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        But in the original post, it says:
        My final print of $Report is sometimes empty

        Now, I can understand mod_perl resetting $Report each time the code is run. But resetting it right before the final print, after the subroutine call has added to it? In your code fragment, $Report isn't empty when it's being printed either.

        Abigail

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