And how does Google check the input field for extraneous characters?

Question

Android

I'm trying to repeat the account registration procedure like in Google on android. I ran into a problem with input validation. I started using regular expressions, it seems to be suitable for a name, but not very much for mail. How is it done in Google?

Ps share the article, if there is one, I will be grateful!

Answer 1

^([a-zA-Z0-9_\-\.]+)@([a-zA-Z0-9_\-\.]+)\.([a-zA-Z]{2,5}) $