| # File src/library/base/R/paste.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/ |
| |
| paste <- function (..., sep = " ", collapse = NULL) |
| .Internal(paste(list(...), sep, collapse)) |
| paste0 <- function(..., collapse = NULL) |
| .Internal(paste0(list(...), collapse)) |
| |
| ##=== Could we extend paste(.) to (optionally) accept a |
| ## 2-vector for collapse ? With the following functionality |
| |
| ##- paste.extra <- function(r, collapse=c(", "," and ")) { |
| ##- n <- length(r) |
| ##- if(n <= 1) paste(r) |
| ##- else |
| ##- paste(paste(r[-n],collapse=collapse[1L]), |
| ##- r[n], sep=collapse[min(2,length(collapse))]) |
| ##- } |