#  File src/library/base/R/license.R
#  Part of the R package, https://www.R-project.org
#
#  Copyright (C) 1995-2015 The R Core Team
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 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 General Public License for more details.
#
#  A copy of the GNU General Public License is available at
#  https://www.R-project.org/Licenses/

licence <- license <- function() {
    cat("\nThis software is distributed under the terms of the GNU General\n")
    cat("Public License, either Version 2, June 1991 or Version 3, June 2007.\n")
    cat("The terms of version 2 of the license are in a file called COPYING\nwhich you should have received with\n")
    cat("this software and which can be displayed by RShowDoc(\"COPYING\").\n")
    cat("Version 3 of the license can be displayed by RShowDoc(\"GPL-3\").\n")
    cat("\n")
    cat("Copies of both versions 2 and 3 of the license can be found\n")
    cat("at https://www.R-project.org/Licenses/.\n")
    cat("\n")
    cat("A small number of files (the API header files listed in\n")
    cat("R_DOC_DIR/COPYRIGHTS) are distributed under the\n")
    cat("LESSER GNU GENERAL PUBLIC LICENSE, version 2.1 or later.\n")
    cat("This can be displayed by RShowDoc(\"LGPL-2.1\"),\n")
    cat("or obtained at the URI given.\n")
    cat("Version 3 of the license can be displayed by RShowDoc(\"LGPL-3\").\n")
    cat("\n")
    cat("'Share and Enjoy.'\n\n")
}
