Question

I have a tweet text like this:

"@user1 @user2 blablabla @user3"

I want to use a regex to filter the users in the beginning of a tweet. That would mean @user1 and @user2. There are not always the same number of users, there might be one, two, three…

I’m trying this with re.IGNORECASE:

re.compile(ur'^(@[a-z0-9_]*\s)*')

But doesn’t match what I want, I’ve tried everything I’ve come up with, but failed. I’m not very familiar with Python regex, but this how I would do it with egrep:

echo "@user1 @user2 blablabla @user3" | egrep '^(@[[:alnum:]_]*[ ]*)*'

Thanks

Editing

The regex was right, I was just checking the solution the wrong way.

tweet = "@user1 @user2 blablabla @user3"
re.compile(ur'^(@[a-z0-9_]*\s)*').match(tweet).groups()

Instead of:

re.compile(ur'^(@[a-z0-9_]*\s)*').match(tweet).group(0)

Clearer version of the regex:

re.compile(ur'^(@\w+\s)+').match(tweet).group(0)

Answer 1

Try this regular expression: ^(@\w+\s)+.

In @user1 @user2 blablabla @user3 it will match: