$var[$j] =~ s/\.\.\./\.\+/g;
The right half of an s/// substitution is not a regex, but a mere string. So if you want to construct .+ in the replacement, you need to write it as .+ and not at \.\+.
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Re^2: Using special characters in left part of a regex match?
by LanX (Bishop) on Feb 06, 2013 at 00:14 UTC