Module path 

Structs

BasenameFunction

BASENAME - last component of a path (file name with extension)

DirnameFunction

DIRNAME - everything except the last component

ExtensionFunction

EXTENSION - file extension (without leading dot)

PathDepthFunction

PATH_DEPTH - number of components in the path

PathPartFunction

PATH_PART - nth component (1-based; negative = from end, -1 = last)

StemFunction

STEM - file name without extension