Joining Group - Waw

Waw is a joining group that defines how the Arabic letter waw, along with its variants in scripts like Persian and Urdu, connects to adjacent characters in cursive text. It belongs to the category of letters that join on both sides, meaning it connects to the preceding and following letters within a word, except when followed by a space or a non-joining character, in which case it only connects backward. This behavior is crucial for correct shaping in Arabic script rendering, as it determines whether the waw appears in its isolated, initial, medial, or final form. The value also covers related characters such as the Arabic waw with hamza above and the Persian waw with a superscript alef, ensuring consistent joining rules across languages that use the Arabic writing system.