| # File src/library/base/R/cat.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/ |
| |
| cat <- function(..., file = "", sep = " ", fill = FALSE, |
| labels = NULL, append = FALSE) |
| { |
| if(is.character(file)) |
| if(file == "") file <- stdout() |
| else if(substring(file, 1L, 1L) == "|") { |
| file <- pipe(substring(file, 2L), "w") |
| on.exit(close(file)) |
| } else { |
| file <- file(file, ifelse(append, "a", "w")) |
| on.exit(close(file)) |
| } |
| .Internal(cat(list(...), file, sep, fill, labels, append)) |
| } |