# Regular Expression

- [Regex Inside the Parentheses](/brand/what-would-you-like-to-learn-about/platform-features/promo-codes/regular-expression/regex-inside-the-parentheses.md)
- [Regex Outside the Parentheses](/brand/what-would-you-like-to-learn-about/platform-features/promo-codes/regular-expression/regex-outside-the-parentheses.md)
- [Match Expression Tool Regex](/brand/what-would-you-like-to-learn-about/platform-features/promo-codes/regular-expression/match-expression-tool-regex.md)
- [Regex Explained](/brand/what-would-you-like-to-learn-about/platform-features/promo-codes/regular-expression/regex-explained.md)