To those who call this "undefined behavior":

Just because it's not a very useful thing to do, doesn't mean it's not a bug. $1, etc., shouldn't be affected by unsuccessful matches. This is clearly spelled out in $& (which suffers the same bug as $1) even if $<_digits_> is for some reason missing the "successful" qualification.

In reply to Re: Bug or feature? s/// and the g option by ysth
in thread Bug or feature? s/// and the g option by Belgarion

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