Plane BMP Unused 3 reserved code points | Assigned 141 code points | |
Range U+FE70..U+FEFF(144 code points) Symbol sets contextual and isolate forms of Arabic letters and points | ||
Arabic Presentation Forms-B is a Unicode block encoding spacing forms of Arabic diacritics, and contextual letter forms. The presentation forms are present only for compatibility with older standards, and are not currently needed for coding text.
References
Arabic Presentation Forms-B Wikipedia(Text) CC BY-SA