Joining Group - Fe
Fe is a specific value used to denote the joining behavior of certain Arabic and Syriac script characters, particularly those that connect to adjacent letters in a cursive text flow. It represents the letter “feh” (ف), which exhibits a right‑joining tendency, meaning it connects to the preceding character on its right side but not to the following character on its left, creating a break in the word. This value helps shape proper text rendering and shaping in complex scripts, ensuring that characters like feh align correctly with neighboring forms, such as in combinations where it appears as an isolated or final form. The Fe value also clarifies alternations for letters with similar shapes, distinguishing it from other joining group values like Beh or Qaf, which have distinct connectivity rules. By assigning a clear joining group, text engines can accurately apply contextual letterforms, preserving legibility and typographic correctness across languages that use these scripts.