What are some real-world examples of using regex?

What are some real-world examples of using regex?

Regex, or regular expressions, are used in various fields. For instance, they can validate email formats, extract data from text, or search for patterns in logs.

Can you give me a specific example of regex in action?

Sure! For example, to validate an email address, you might use the regex pattern ^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$.

How about using regex for data extraction?

Absolutely! If you have a log file and want to extract IP addresses, you could use a regex like \b(?:\d{1,3}\.){3}\d{1,3}\b.

Are there any tools that can help me test regex patterns?

Yes! Tools like Regex101 and RegExr allow you to test and debug your regex patterns interactively.