PathComponent = enum
  pcFile,                     ## path refers to a file
  pcLinkToFile,               ## path refers to a symbolic link to a file
  pcDir,                      ## path refers to a directory
  pcLinkToDir                 ## path refers to a symbolic link to a directory

iterator walkDir(dir: string; relative = false): tuple[kind: PathComponent, path: string] {...}{.
    raises: [], tags: [].}

iterator walkDirRec(dir: string; filter = {pcFile, pcDir}): string {...}{.raises: [], tags: [].}