Slice out the top-level regions that begin with an opening tag carrying cls and end at terminator (or the next region of the same class). Class matching is on a whole word, so ps-folge does not match ps-folge-dok.
cls
terminator
ps-folge
ps-folge-dok
Optional
Slice out the top-level regions that begin with an opening tag carrying
clsand end atterminator(or the next region of the same class). Class matching is on a whole word, sops-folgedoes not matchps-folge-dok.