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Re^3: Substitution with regex and memory consumption

by dave_the_m (Monsignor)
on Mar 01, 2020 at 22:47 UTC ( [id://11113608]=note: print w/replies, xml ) Need Help??


in reply to Re^2: Substitution with regex and memory consumption
in thread Substitution with regex and memory consumption

That's roughly it, yes.

Dave.

  • Comment on Re^3: Substitution with regex and memory consumption

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Re^4: Substitution with regex and memory consumption
by k-mx (Scribe) on Mar 08, 2020 at 08:16 UTC

    Isn't this behavior incorrect? Why we must copy variable on each substitution?

    I think we can: respect PL_sawampersand and /p flag for substitution and have only one copy for string (last one) in current scope.

[reply]
      As always the devil is in the detail. Consider for example: 
      {
    $s = ".....X.....";
    $s =~ s/X/Y/;
    $x = eval q{ "[ $`$& $' ]" };
}

      [download]
      You can't rely on PL_sawampersand.

      Dave.

[reply]
[d/l]

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