title: In doxygen documentation how to create a link to a specific line of a file
body: <p>There are several doxygen commands whose purpose is to create links in the documentation (<a href="http://www.doxygen.nl/manual/commands.html#cmdlink" rel="nofollow noreferrer">@link</a>, <a href="http://www.doxygen.nl/manual/commands.html#cmdref" rel="nofollow noreferrer">@ref</a>).<br>
  I am currently using the <a href="http://www.doxygen.nl/manual/commands.html#cmdref" rel="nofollow noreferrer">@ref</a> command to create a link to a custom file, written in a language not supported by doxygen (xml). <br>
  I would like to alter this link so that it points to a precise line in the file.<br>
  Is there a doxygen command that allows to do that ?</p>