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.

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).