Regular expression for validating ip address
NET framework makes working with regular expressions quite easy. Is Match(ip Address); return is IPAddress; } As you can see, the .in short, is a string of text which represents a search pattern. They are usually used either to search through text and find strings which match the given pattern, or to validate a string against the search pattern. Here are some regular expressions that will help you to perform a validation and to extract all matched IP addresses from a file.The following regular expressions match IPv4 addresses.Matched IP addresses can be extracted from a file using grep command.In this article you'll find a regular expressions themselves and an example of how to extract matched IP addresses from a file with the grep command.
Regular expressions are extremely powerful but they can prove quite difficult to understand and get the hang of.
Once you do manage to get the hang of them, you will most likely find that they are great to use in your code and they can save you plenty of coding time.