file.path Construct Path to File
Description
Construct the path to a file from components in a platform-independent way.
Usage
file.path(..., fsep = .Platform$file.sep)
Arguments
... |
character vectors. Long vectors are not supported. |
fsep |
the path separator to use (assumed to be ASCII). |
Details
The implementation is designed to be fast (faster than paste) as this function is used extensively in R itself.
It can also be used for environment paths such as PATH and R_LIBS with fsep = .Platform$path.sep.
Trailing path separators are invalid for Windows file paths apart from ‘/’ and ‘d:/’ (although some functions/utilities do accept them), so a trailing / or \ is removed there.
Value
A character vector of the arguments concatenated term-by-term and separated by fsep if all arguments have positive length; otherwise, an empty character vector (unlike paste).
An element of the result will be marked (see Encoding) as UTF-8 if run in a UTF-8 locale (when marked inputs are converted to UTF-8) or if a component of the result is marked as UTF-8, or as Latin-1 in a non-Latin-1 locale.
Note
The components are by default separated by / (not \) on Windows.
See Also
basename, normalizePath, path.expand.
Copyright (©) 1999–2012 R Foundation for Statistical Computing.
Licensed under the GNU General Public License.