Regarding
=> * ^Received:.*[[(]209\.163.\.100.[0-9][0-9]?[0-9]?[])]
(which has an erroneous "." after the "163", by the way - I'll assume
its absence), Jefferis Peterson wrote:
So, I was trying to follow this logic, but I don't understand why
the entire string is enclosed in brackets. Is he looking for
literal brackets?
No, you're looking at it the wrong way: it's not the entire string
enclosed in brackets, but there's
[(
in brackets at the beginning and
])
in brackets at the end, so that the regexp (only!) matches if the
address is enclosed in parentheses, brackets or a combination:
[209.163.100.1]
(209.163.100.2)
[209.163.100.3)
(209.163.100.4]
/HW
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