authz documentation

Hi

I'm trying to better understand features of mod_authz_svn module. So
far only two sources of information were found:
    -- INSTALL file that accompanies mod_authz_svn sources
    -- Subversion Book

However I could not find the answer for the following questions:
    * in case [project:/path] and [/path] both exist, how they are processed
    * if two records exist '* = r' and 'harry = ', what rights harry
      will have?
    * are those pathes pathes to directories only, or it's also possible
      to control access on per-file basis?

Regards

--
Misha