Dumping views, functions, ...

Hi all,

   Lets say that in my database I have a view named foo_view and I'd
like to dump it's definition. I'd like to do something like:

  pg_dump --view=foo_view bar_db > foo_view.log

  so I'd have in the foo_view.log file the foo_view's definition. This
same concept I'm searching to apply it to rules, functions, ...

   I have been looking into pg_dump options and I haven't found the way.
The most similar thing I have found is -t option that does what I need
but with tables. Is it possible to do this with pg_dump?

Thanks
--
Arnau