LICENSE.txt

monad is released under the University of Illinois/NCSA Open Source License,
reproduced below:

Copyright (c) 2011 Jack Toole.  All rights reserved.

Developed by: Jack Toole <jack@toole1.com>
              University of Illinois at Urbana-Champaign
              http://code.autograder.org

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal with the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
  1. Redistributions of source code must retain the above copyright notice,
     this list of conditions and the following disclaimers.
  2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimers in the
     documentation and/or other materials provided with the distribution.
  3. Neither the names of Jack Toole, CS 225, the University of Illinois at
     Urbana-Champaign, nor the names of its contributors may be used to
     endorse or promote products derived from this Software without specific
     prior written permission.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
WITH THE SOFTWARE.