I don't think that %- is about changing the semantics of matching, but more for when you're repeating parts of a regular expression, probably using interpolated variables (ie, qr{ } sub-expressions).

You should probably look into the /g regex modifier.

$h=$ENV{HOME};my@q=split/\n\n/,`cat $h/.quotes`;$s="$h/."
."signature";$t=`cat $s`;print$t,"\n",$q[rand($#q)],"\n";
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