re = /^(?P<IP>(?:[1-9]|[1-9][0-9]|1[0-9]{2}|2[0-1][0-9]|22[0-3])(?:\.(?:0|[1-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])){3}):(?P<PORT>(?:[1-9]|[1-9][0-9]{1,3}|[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 = '123.123.123.123:12345
123.0.123.2:23
123.01.123.2:23
123.10.123.2:23
0.1.2.3:1
1.0.2.3:1
223.255.255.255:123
225.255.255.255:123
12.231.21.232:65535'
# 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