re = /^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)(\:([0-9]{1,4}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5]))?$/m
str = '0.0.0.0
0.0.0.0:1
255.255.255.255:1
192.168.54.25
192.168.54.25:42168
192.168.54.25:65535
192.168.54.25:65536
000.0000.00.00
192.168.1.1:80
0.0.0.0:123
912.456.123.123
123.456.789.123
255.255.255.255:65536
255.255.255.255:65535
256.256.256.256:80'
# Print the match result
str.scan(re) do |match|
puts match.to_s
end
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Ruby, please visit: http://ruby-doc.org/core-2.2.0/Regexp.html