Regex capture all dot characters excluding the dot character in front of '.com' in an email

Question

Looking to do the following with regex using this email: tes.t+yolo@gmail.com

• capture all . characters excluding the . that's in front of .com

In addition:

• capture everything from + up to but not including the @ character

The final result would look like: test@gmail.com

Answer 1

As I understand your approach was to remove the matched parts from the string in order to receive the final result. You would then need to do this in two steps (with two regex) - remove the dots, and remove the part between + and @.

Regex to capture all . except before .com: \.(?!com$)

Regex to capture everything from + up to not including the @ character: \+[^@]*

You can use these together as a single regex expression: \+[^@]*|\.(?!com$)

Regex Demo

Bonus

Alternatively, another approach would be to tackle this through groups, e.g:

^([^\.]+)(.)([^+]+)([^@]+)(\S+)$

You can then build the final result by combining several groups together.