Your code, shown below, does not work the same way.

This is a common myth. I (pretty recently) used to believe the same thing. Deparse shows us the light, though:

$ perl -MO=Deparse -e 'while ($var = <fh>) {}'
while (defined($var = <fh>)) {
    ();
}

[download]

In reply to Re^2: How to extract Start .. End from multiline file by revdiablo
in thread How to extract Start .. End from multiline file by gasho

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