CODEWITHSUNDEEP
pythonregexpython-3.x
Armageddon80
Armageddon80

Reputation: 235

Using regex to detect twitter handles

I am trying to use regex to detect twitter mentions. The example message is, "@This_matches hello there, @doesnt@match how is it going @matches"

What i am using:

m_list = re.findall(r'(?<!\w)(@\w{1,15})(?=\s)' ,a)

The only issue i am having is that when the username is at the end of the string it will not pick it up. For example: "@testing blah" works, "blah @testing2" does not work. So when there is no character at the end of the string it will not match. How do i fix this?

Upvotes: 1

Views: 209

Answers (2)

Avinash Raj
Avinash Raj

Reputation: 174874

You may replace the last positive lookahead with negative lookahead.

m_list = re.findall(r'(?<!\w)(@\w{1,15})(?!\S)' ,a)

Upvotes: 0

vks
vks

Reputation: 67988

m_list = re.findall(r'(?<!\w)(@\w{1,15})(?=\s|$)' ,a)

                                             ^^

Add $ assert position at end of a line

or simply

m_list = re.findall(r'(?<!\w)(@\w{1,15})\b' ,a)

                                        ^^

\b word boundary

Upvotes: 1

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