Find files with the given base name and extensions that exist.

Note that in the current implementation, the case of the filepath and the extension must match.

Usage

readable.files(
  filepath,
  precedence = c(".mgh", ".mgz"),
  error_if_none = TRUE,
  return_all = FALSE
)

Arguments

filepath

character string, path to a file without extension

precedence

vector of character strings, the file extensions to check. Must include the dot (if you expect one).

error_if_none

logical, whether to raise an error if none of the files exist

return_all

logical, whether to return all readable files instead of just the first one

Value

character string, the path to the first existing file (or NULL if none of them exists).