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 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).[note 1] The block name in Unicode 1.0 was Basic Glyphs for Arabic Language;[5] its characters were re-ordered in the process of merging with ISO 10646 in Unicode 1.0.1 and 1.1.[3]

The presentation forms are present only for compatibility with older standards, and are not currently needed for coding text.[6]

Block

Arabic Presentation Forms-B[1][2]
Official Unicode Consortium code chart (PDF)
  0 1 2 3 4 5 6 7 8 9 A B C D E F
U+FE7x ﹰ ﹱ ﹲ ﹳ ﹴ ﹶ ﹷ ﹸ ﹹ ﹺ ﹻ ﹼ ﹽ ﹾ ﹿ
U+FE8x ﺀ ﺁ ﺂ ﺃ ﺄ ﺅ ﺆ ﺇ ﺈ ﺉ ﺊ ﺋ ﺌ ﺍ ﺎ ﺏ
U+FE9x ﺐ ﺑ ﺒ ﺓ ﺔ ﺕ ﺖ ﺗ ﺘ ﺙ ﺚ ﺛ ﺜ ﺝ ﺞ ﺟ
U+FEAx ﺠ ﺡ ﺢ ﺣ ﺤ ﺥ ﺦ ﺧ ﺨ ﺩ ﺪ ﺫ ﺬ ﺭ ﺮ ﺯ
U+FEBx ﺰ ﺱ ﺲ ﺳ ﺴ ﺵ ﺶ ﺷ ﺸ ﺹ ﺺ ﺻ ﺼ ﺽ ﺾ ﺿ
U+FECx ﻀ ﻁ ﻂ ﻃ ﻄ ﻅ ﻆ ﻇ ﻈ ﻉ ﻊ ﻋ ﻌ ﻍ ﻎ ﻏ
U+FEDx ﻐ ﻑ ﻒ ﻓ ﻔ ﻕ ﻖ ﻗ ﻘ ﻙ ﻚ ﻛ ﻜ ﻝ ﻞ ﻟ
U+FEEx ﻠ ﻡ ﻢ ﻣ ﻤ ﻥ ﻦ ﻧ ﻨ ﻩ ﻪ ﻫ ﻬ ﻭ ﻮ ﻯ
U+FEFx ﻰ ﻱ ﻲ ﻳ ﻴ ﻵ ﻶ ﻷ ﻸ ﻹ ﻺ ﻻ ﻼ ZW
NBSP
Notes
1.^ As of Unicode version 16.0
2.^ Grey areas indicate non-assigned code points

History

The following Unicode-related documents record the purpose and process of defining specific characters in the Arabic Presentation Forms-B block:

Version Final code points[a] Count UTC ID L2 ID WG2 ID Document
1.0.0 U+FE70..FE72, FE74, FE76..FE7F 14 UTC/1991-048B Whistler, Ken (1991-03-27), "14 addtional [sic] Arabic spacing diacritics", Draft Minutes from the UTC meeting #46 day 2, 3/27 at Apple
U+FE80..FEFC 125 (to be determined)
U+FEFF 1 UTC/1991-054 Whistler, Ken, FF Proposal
UTC/1991-048B Whistler, Ken (1991-03-27), "III.I.4", Draft Minutes from the UTC meeting #46 day 2, 3/27 at Apple
L2/05-137 Freytag, Asmus (2005-05-10), Handling "defective" names
L2/05-108R Moore, Lisa (2005-08-26), "Consensus 103-C7", UTC #103 Minutes, Create a "Normative Name Alias" property and file in the UCD. Populate the property with names from the sections "Typos" and "Bad or misleading names" from document L2/05-137.
3.2 U+FE73 1 L2/01-069 Davis, Mark (2001-01-29), Proposal Summary Form for Arabic character tail for final Seen family (Seen, Sheen, Saad, Daad)
L2/01-095 N2322 Umamaheswaran, V. S. (2001-02-05), Proposal to add "Arabic Tail Fragment" character
L2/01-012R Moore, Lisa (2001-05-21), "Motion 86-M30", Minutes UTC #86 in Mountain View, Jan 2001, Accept the addition of the character ARABIC TAIL FRAGMENT at U+FE73, with the properties of an extender.
L2/01-344 N2353 (pdf, doc) Umamaheswaran, V. S. (2001-09-09), "7.9", Minutes from SC2/WG2 meeting #40 -- Mountain View, April 2001
  1. ^ Proposed code points and characters names may differ from final code points and names

References

  1. ^ "Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
  2. ^ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.
  3. ^ a b "Unicode 1.0.1 Addendum" (PDF). The Unicode Standard. 1992-11-03. Retrieved 2016-07-09.
  4. ^ "Layout Controls" (PDF). The Unicode Standard, Version 12.0.0. The Unicode Consortium. p. 871.
  5. ^ "3.8: Block-by-Block Charts" (PDF). The Unicode Standard. version 1.0. Unicode Consortium.
  6. ^ The Unicode Consortium. The Unicode Standard, Version 6.0.0, (Mountain View, CA: The Unicode Consortium, 2011. ISBN 978-1-936213-01-6), Chapter 8

Notes

  1. ^ As the name suggests, it was also used to prohibit line breaks at its position, but this usage was deprecated in Unicode 3.2.[4]
Allikas: https://en.wikipedia.org/wiki/Arabic_Presentation_Forms-B
No tags for this post.