Joining Group - YA

YA is a value that defines how an Arabic letter with this joining group behaves when connected to neighboring characters, specifically indicating its right-joining form. It applies to the letter Yeh (ي) and its variants, such as Yeh with tail or Farsi Yeh, ensuring that when this character appears in the middle or at the end of a word, it connects to the preceding letter on its right side while leaving a gap on its left, unless a following letter forces a different joining behavior. This group also includes special contextual forms like Yeh Barree, which is used in certain Urdu and Kashmiri writing, and it helps shape cursive text correctly across scripts that use the Arabic base. Essentially, YA determines the precise attachment point and visual connection for these Yeh-like letters, allowing proper word formation and readability in joined writing systems.