Regular expression, How to allow combination of dot (period) and letters?

Question

I want to allow (.) and (a-zA-Z) letters and _ and - , I have some problems with the (.) ,

Any idea ?

Thanks in advance ,

Ish

Answer 1

This will do [a-zA-Z_.-]+

Outside the character class, ([]), you need to escape the dot (\.)as it is a meta character.

[a-z]+\.com  #matches `something.com`