Perl Tutorial 117 – Regex: Backreferences

https://www.SouthAmericanPostcard.com/
Part 117 of the Perl Tutorial demonstrates the use of regular expressions back references to refer to previous successful matches. South America Photo Map (Free Android App)
https://play.google.com/store/apps/details?id=com.saj.pinmap
In English, Spanish & Portuguese!

South America Journey free app, the best app for South America travelers!
Android: https://play.google.com/store/apps/details?id=com.southamericajourney&hl=en
IOS: https://apps.apple.com/us/app/south-america-journey/id1075921447