| # File src/library/base/R/conflicts.R |
| # Part of the R package, https://www.R-project.org |
| # |
| # Copyright (C) 1998 B. D. Ripley |
| # Copyright (C) 2005-2011 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/ |
| |
| conflicts <- function(where = search(), detail = FALSE) |
| { |
| if(length(where) < 1L) stop("argument 'where' of length 0") |
| z <- vector(length(where), mode="list") |
| names(z) <- where |
| for(i in seq_along(where)) z[[i]] <- objects(pos = where[i]) |
| all <- unlist(z, use.names=FALSE) |
| dups <- duplicated(all) |
| dups <- all[dups] |
| if(detail) { |
| for(i in where) z[[i]] <- z[[i]][match(dups, z[[i]], 0L)] |
| z[vapply(z, function(x) length(x) == 0L, NA)] <- NULL |
| z |
| } else dups |
| } |