Arabic Presentation Forms-B

Arabic Presentation Forms-B is a Unicode block encoding spacing forms of Arabic diacritics, and contextual letter forms. The special codepoint ZWNBSP (zero width no-break space) is also here, which is only meant for a byte order mark (that may precede text, Arabic or not, or be absent). The block name in Unicode 1.0 was Basic Glyphs for Arabic Language; its characters were re-ordered in the process of merging with ISO 10646 in Unicode 1.0.1 and 1.1.

See also: Arabic Presentation Forms-A (Unicode block), Alphabetic Presentation Forms (Unicode block), and Specials (Unicode block)
For a list of all Arabic characters encoded in Unicode, see Arabic script in Unicode.
Arabic Presentation Forms-B
RangeU+FE70..U+FEFF
(144 code points)
PlaneBMP
ScriptsArabic (140 char.)
Common (1 char.)
Symbol setscontextual and isolate forms of Arabic letters and points
Assigned141 code points
Unused3 reserved code points
Unicode version history
1.0.0 (1991)140 (+140)
3.2 (2002)141 (+1)
Unicode documentation
Code chart ∣ Web page
Note:
The characters in this block were re-ordered in Unicode 1.0.1, in the process of merging with ISO/IEC 10646.

The presentation forms are present only for compatibility with older standards, and are not currently needed for coding text.

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