This is the open-source software license of the Rascal project itself:
This whole project is released under the BSD-2 simplified clause, with the noted exception that a number of older files still have an Eclipse license.
----BSD license---- Copyright (c) 2022, NWO-I Centrum Wiskunde & Informatica (CWI) All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
----Eclipse v1 license----
Copyright (c) 2012-2022 CWI All rights reserved. This program and the accompanying materials are made available under the terms of the Eclipse Public License v1.0 which accompanies this distribution, and is available at http://www.eclipse.org/legal/epl-v10.html
Furthermore, the Rascal project has compile-time and run-time dependencies as defined in the following POM file: https://raw.githubusercontent.com/usethesource/rascal/main/pom.xml
You should check that the licenses of the above dependencies are compatible with your goals and situation. The authors and owners of Rascal cannot be held liable for any damages caused by the use of those licenses, or changes therein.
The authors contributing to Rascal prefer open-source licenses for their dependencies that are permissive to commercial exploitation and any kind of reuse, and are non-viral.