sub {
  # get possible args
  # initialize hash
  # open file
  # while file {
    # split
    # possible clean up code
    # hash
  }
  # close file
  # possible counter
  # possible write to log
  # return hash
}

##</code><code>##

get_data(
  pre => undef,
  while => '$_ =~ tr/ / /s;',
  post => 'write_log("Found $count instances");',
);