[Haskell-cafe] Ghci :ctags or hasktags print to standard out instead of file

Hi, I want to use Vim with Haskell. Therefore ctags generation is really useful. The TagList plugin for Vim reads the ctags info from the command line instead of from the file. I could not figure out how to make ghci :ctags or hasktasks to print the ctags info to the command line. Is there a way to do that? Any hints? Kind regards Johannes