# File src/library/base/R/dump.R
# Part of the R package, https://www.R-project.org
#
# Copyright (C) 1995-2012 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/
dump <- function (list, file = "dumpdata.R", append = FALSE,
control = "all", envir = parent.frame(),
evaluate = TRUE)
{
if(is.character(file)) {
## avoid opening a file if there is nothing to dump
ex <- sapply(list, exists, envir=envir)
if(!any(ex)) return(invisible(character()))
if(nzchar(file)) {
file <- file(file, ifelse(append, "a", "w"))
on.exit(close(file), add = TRUE)
} else file <- stdout()
}
opts <- .deparseOpts(control)
.Internal(dump(list, file, envir, opts, evaluate))
}
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