Bison 3.8.1Bison This manual (10 September 2021) is for GNU Bison (version 3.8.1), the GNU parser generator. Copyright © 1988–1993, 1995, 1998–2015, 2018–2021 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Se
