Joining Group - HAMZAH ON HA GOAL

HAMZAH ON HA GOAL is a specific joining group value that defines the shaping behavior of the Arabic letter heh (ه) when it carries a hamza symbol, typically written as ء or ئ above or below it. This group ensures that such a letter connects to adjacent characters in cursive script according to a particular pattern, often appearing as a medial or final form that visually preserves the hamza’s placement while maintaining legible joining. It is used in languages like Arabic and Urdu to distinguish this modified heh from plain heh or other variants, allowing text rendering systems to produce the correct glyph shapes in connected writing.