From: Matthew Kerwin <lists@...>
Date: 2013-04-24T11:21:55+09:00
Subject: Re: what is the $- magic global?

Also: I'm aware of bash's $- options description, but that doesn't seem
relevant in this case; bash's $- is a simple string, and doesn't have
any magic attached.

I know that perl and ruby both have a similarly-defined $+ magic
variable.  Perl also has a $- ("The number of lines left on the page of
the currently selected output channel.") but I doubt there's a
correlation with ruby's, because perl's is a simple integer, and is
related to $~ and $= which are completely different between the two
languages.

I've also encountered perl's @-/@+ match offsets, but can't see how
they'd be relevant.

Completely flummoxed.

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