RegEx/Network/IPv4Address.regex.txt
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# Matches an IPv4 Address (?>[0-2][0-5][0-5]|[0-1]\d\d|\d{1,2}) # Match a series of digits (up to 255), \. # followed by a dot, (?>[0-2][0-5][0-5]|[0-1]\d\d|\d{1,2}) # followed by another series of digits (up to 255), \. # followed by a dot, (?>[0-2][0-5][0-5]|[0-1]\d\d|\d{1,2}) # followed by another series of digits (up to 255), \. # folowed by a dot, (?>[0-2][0-5][0-5]|[0-1]\d\d|\d{1,2}) # followed by a final series of digits (up to 255) (?=\D|$) # followed by a non-digit or end of string. |