Try this:

{
  use re debug;

  my $re = qr/myregex/;
}
...
if ($item =~ /$re/) { ... }

[download]

Update: SBECK had said:

Unfortunately, the "use regexp" pragma is applied when the regexp is created... I want something to turn debugging on when a regexp is matched against.

so I tried to make a helpful suggestion.

Sorry it was not helpful

In reply to Re^6: Turning on regexp debugging at runtime by RonW
in thread Turning on regexp debugging at runtime by SBECK

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