Top Level Namespace

Defined Under Namespace

Modules: Cv, Ms Classes: IO

Instance Method Summary collapse

Instance Method Details

#openany(arg, &block) ⇒ Object

takes a filename or an io object, hands a rewinded io object to the reciever and then closes the file or places the io in the original position.



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# File 'lib/openany.rb', line 5

def openany(arg, &block)
  io = 
    if arg.is_a?(String)  # filename
      File.open(arg)
    else
      orig_pos = arg.pos
      arg.rewind
      arg
    end
  reply = block.call(io)
  if arg.is_a?(String)  # filename
    io.close
  else
    arg.pos = orig_pos
  end
  reply
end