Low level read function for an individual iso file. Usually not called directly but available for methods development.

read_iso_file(
ds,
root,
path,
file_n,
files_n,
)
ds the basic data structure for the type of iso_file root directory for the isofiles. Can be relative to the current working directory (e.g. "data") or an absolute path on the file system (e.g. "/Users/..." or "C:/Data/.."). The default is the current working directory ("."). Can be supplied as a vector of same length as the provided paths if the paths have different roots. file path number of processed file for info messages total number of files for info messages whether to read from cache whether to read from old cache files (to be deprecated in isoreader 2.0) whether to reread outdated cache files whether to write to cache path for the cache file path for the old cache files whether to run data integrity checks after a file read file extension file reader function list of parameters to be passed on to the reader where to find the reader function