-*- rd -*-
$Author: nobu $
=begin
= StringIO
Pseudo (({IO})) class from/to (({String})).
This library is based on MoonWolf version written in Ruby. Thanks a lot.
= Differences to (({IO}))
* not implemented: (({fcntl})), (({reopen})).
* (({fileno})) returns nil.
* (({pos=})) returns new position, not 0.
* (({ungetc})) does nothing at start of the string.
=end