Joining Group - Manichaean Zayin

Manichaean Zayin is a joining group value that defines how the Manichaean letter Zayin connects to adjacent letters in cursive scripts, specifically within the Manichaean alphabet. It belongs to a set of joining groups that determine the initial, medial, final, or isolated forms of a letter during text shaping. Zayin, which corresponds to the Hebrew letter of the same name, is assigned a joining group that allows it to connect on both sides when appropriate, but it also exhibits behavior consistent with letters that may have dual joining forms. This value ensures that the character interacts correctly with neighboring characters in words, preserving the distinct visual style of Manichaean script, which is written right to left. The joining group helps render the letter accurately in digital text, especially in contexts where calligraphic or handwritten variants appear. By specifying this group, the character’s contextual forms are predictable across fonts and rendering engines.