If you're confused about variables and packages, it sounds like you need to read Coping with Scoping.

Since sort was there in Perl 4, the mechanism that it uses by default ($a, $b) accesses the package variable of that name in the current package.

In reply to Re: Re: •Re: Problem with Schwartzian Transform nested in another sort from a different package by tilly
in thread Problem with Schwartzian Transform nested in another sort from a different package by ronald

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