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Editorial Team
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Asked: 2026-05-21T10:22:41+00:00

What would be a good way to auto link words with @ in front

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What would be a good way to “auto link” words with @ in front of them like twitter does?
For example auto_link_user(‘Hello @matt please send file to harry@gmail.com’) would return
‘Hello @matt please send file to harry@gmail.com’

I’m trying to do exactly this in Ruby http://www.ideone.com/aGklx

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1 Answer

  1. Editorial Team
    str = "@foo, I'm @bar. My email is bar@bar.com"
r = /(^|\s)@([a-z0-9_]+)/i

str.gsub(r){|x| "#{$1}<a href=\"http://wwww.twitter.com/#{$2}\">@#{$2}<a/>"}
#=> "<a href=\"http://wwww.twitter.com/foo\">@foo<a/>, I'm <a href=\"http://wwww.twitter.com/bar\">@bar<a/>. My email is bar@bar.com"

    Using String#gsub

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