racket-ansi: A package for ANSI and VT10x input and output.
Copyright (C) 2011, 2013, 2014, 2015 Tony Garnock-Jones <tonyg@leastfixedpoint.com>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this program (see the files "lgpl.txt" and
"gpl.txt"). If not, see <http://www.gnu.org/licenses/>.