How to put .com at the end of email addressed by regex?

Posted by terces907 on Stack Overflow See other posts from Stack Overflow or by terces907
Published on 2013-10-28T20:43:49Z Indexed on 2013/10/28 21:53 UTC
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regex

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vim

Example

I received a email-list from my friends but the problem is some people typed an email in full form ([email protected]) and some people typed (xxx@xxx without .com). And i want to improve it into the same format. How can i improve it if i want to edit them on vi?

In my emaillist.txt

foo@gmail
[email protected]
bas@gmail
[email protected]
mike@abc
john@email

My try:

i tried to use an easy regex like this to catch the pattern like xxx@xxx

:%s/\(\w*@\w*\)/\0.com/g
and
:%s/\(\w*@\w*[^.com]\)/\0.com/g

But the problem is this regex include [email protected] also

And the result become like this after i enter the command above

[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]

So, My expectation after substitution is should be like this:

[email protected]
[email protected]
[email protected]
[email protected]
[email protected]
[email protected]

How to use regex in this situation?

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