Regular Expression (.)@(.)

Question

What does this regular expression stand for (.*)@(.*). I came to know that (.*) matches any character with period any number of times.

But I couldn't understand the meaning properly. Also, what does two of them separated by @ mean?

The title suggests (.*) and the question says (.). Possible typo? — Frederik.L, Sep 09 '17 at 07:56
it matches a string that has a literal `@` somewhere in it (like an email address) — trincot, Sep 09 '17 at 07:58

score 1 · Answer 1 · edited Sep 09 '17 at 08:20

1

.*@.* matches any string containing the @ character Example of strings that this pattern would match

(.*)@(.*) would just return whatever is before and after the @ character

Example:

edited Sep 09 '17 at 08:20

Andrea Corbellini

answered Sep 09 '17 at 08:03

Bogdan Perian

mrid · Accepted Answer · 2017-09-09T08:12:01.510

0

(.*)@(.*) can match any of the following:

@, .@., ..@., jbkbhjh...@...njbh ...

* means one or many characters.

so this regex means a @ symbol enclosed by any number of chars

Also, what does two of them separated by @ mean

Answer to this is: the @ symbol is required for a text to match this regex

edited Sep 09 '17 at 08:12

answered Sep 09 '17 at 08:01

mrid

You mean to say that if I have testing123@gmail.com, then this command would give me "testing123" and "gmail.com" separately ? – Ashutosh Mishra Sep 09 '17 at 08:09
no, the entire string `testing123@gmail.com` matches this regex, so if you test this string this regex, it will return true – mrid Sep 09 '17 at 08:10
So, it gives me output as testing123 and gmail.com separately, right? – Ashutosh Mishra Sep 09 '17 at 08:14
yes. it will return the email – mrid Sep 09 '17 at 09:11

Regular Expression (.*)@(.*)