Advanced Regex Patterns: The Art of Capturing Groups
Now that you're familiar with the basics of regex, it's time to take it to the next level with advanced patterns that capture groups.
Why Groups Matter
Capturing groups allow you to extract specific parts of a match, which is essential for parsing and manipulating text.
Named Capture Groups
You can give your groups a name using the `(?<name>pattern)` syntax.
This is useful when you need to refer to a group later in your pattern.
- Example:
(<name>[0-9]{1,3}<) - Learn more about Subroutines.
Non-Capturing Groups
You can use the `(?:pattern)` syntax to create a non-capturing group.
This is useful when you want to match a pattern without capturing it, like in (?:\d{3}) for matching three digits.
(?<name>[a-z]{1,3})example
Capturing groups can be nested within other capturing groups, which can get a bit tricky.
But with practice, you'll be a regex master in no time!