Return a list of files given a full prefix and optional suffix. Optionally,
confirm that the right number of files are returned. If the wrong number of
files is returned, throw an error.
Usage
match_file(path_prefix, suffix = NULL, expect = NULL)
Arguments
- path_prefix
Full path and file prefix
- suffix
File suffix, as character (default = NULL)
- expect
Number of files expected to be returned (default = NULL)
Value
Character vector of matched file names, as full paths.
Details
If path_prefix points to a directory, then all files inside that directory
that match the suffix (if provided) are returned.