Generate a Regex Pattern

What You'll Get

A regex pattern that matches your specified format, with a plain-English explanation of each component and 3-5 test examples of strings that should and shouldn't match.

The Prompt

Generate a regex pattern that matches [describe what to match, e.g., IP addresses in a log file, email addresses, Windows hostnames in format CORP-PC-####]. Explain each component and give test examples of matching and non-matching strings.

Tips

Specify the flavor (Python re, PowerShell, grep/POSIX, JavaScript) if your environment matters — slight syntax differences exist between them. Include an example of what the string looks like if you have one; it prevents ambiguity.