title: Regular expression for git repository
body: <p>What will be proper regular expression for git repositories?</p>
  
  <p>example link:
  git@github.com:someone/someproject.git</p>
  
  <p>so it will be like
  [user]@[server]:[project].git</p>
  
  <p>server can be url or ip
  Project can contain some other characters than alphanumeric like '-'
  I'm not sure what is the role of '/'</p>
  
  <p>any suggestions?</p>