3 Bison was written primarily by Robert Corbett.
5 Richard Stallman made it Yacc-compatible.
7 Wilfred Hansen of Carnegie Mellon University added multicharacter
8 string literals and other features (Bison 1.25, 1995).
10 Akim Demaille rewrote the parser in Bison, and changed the back end to
13 Paul Hilfinger added GLR support (Bison 1.50, 2002).
15 Joel E. Denny contributed canonical-LR support, and invented and added
16 IELR and LAC (Lookahead Correction) support (Bison 2.5, 2011).
18 Paolo Bonzini contributed Java support (Bison 2.4, 2008).
20 Alex Rozenman added named reference support (Bison 2.5, 2011).
22 Paul Eggert fixed a million portability issues, arbitrary limitations,
27 Copyright (C) 1998-2015, 2018-2020 Free Software Foundation, Inc.
29 This file is part of Bison, the GNU Compiler Compiler.
31 This program is free software: you can redistribute it and/or modify
32 it under the terms of the GNU General Public License as published by
33 the Free Software Foundation, either version 3 of the License, or
34 (at your option) any later version.
36 This program is distributed in the hope that it will be useful,
37 but WITHOUT ANY WARRANTY; without even the implied warranty of
38 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
39 GNU General Public License for more details.
41 You should have received a copy of the GNU General Public License
42 along with this program. If not, see <http://www.gnu.org/licenses/>.