to share with strio_reopen properly. [ruby-Bugs-13919] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@13482 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
-*- rd -*- $Author$ $Date$ =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