What's bad about this? Sure, there are other ways to do it, but it doesn't seem particularly egregious to me. For those following along at home, here are some other ways:
$default_title =~ s/(.{50}).*/$1/;
$default_title =~ s/./$ctr++<50?$&:""/ge;
$default_title = pack "A50", $default_title;
$default_title = join "", (split //, $default_title)[0..50];
Personally, I like the original much better than these alternatives. The only other way that I would possibly use is:
substr($default_title, 50) = "";
But substr as an lvalue is not something everyone knows about, so it's not clearly the best option.
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