child(subpath)

Make a new PathInfo appending a sub path.

The path form for a parameter must keep consistency with a path passed to the constructor method. If the target was constucted by make_with_posix. The path form must be POSIX. If the target was constructed by make_with_hfs, the path form must be HFS.

• subpath (text) : A relative path from the target.

script object : a new instance of PathInfo