U+FEFB "ﻻ" Arabic Ligature Lam with Alef Isolated Form Unicode Character

Unicode Version 17.0

U+FEFB "ﻻ" Arabic Ligature Lam with Alef Isolated Form is a typographic ligature representing the combination of the Arabic letters Lam (ل) and Alef (ا) in their isolated form, written as a single connected glyph. It is part of the Arabic Presentation Forms-B block and is primarily used in calligraphic or decorative writing to maintain visual harmony, particularly in formal text. This character is not considered semantically distinct from the two separate letters and is included in Unicode for compatibility with legacy fonts and systems that require a precomposed form. It is important to note that modern Unicode encoding recommends using the regular sequence of Lam and Alef (U+0644 followed by U+0627) rather than this ligature, as it can complicate text processing and searchability.

General Properties

Code Point U+FEFB
Version Added 1.1
Name Arabic Ligature Lam with Alef Isolated Form
Unicode 1.0 Name Glyph for Isolate Arabic Ligature Lam Alef
Block Arabic Presentation Forms-B
General Category Other Letter
Canonical Combining Class Not Reordered
Bidirectional Class Arabic Letter
Decomposition Type Isolated
Decomposition Mapping "ل" U+0644 Arabic Letter Lam
"ا" U+0627 Arabic Letter Alef

Encodings

HTML Decimal Encoding ﻻ
HTML Hex Encoding ﻻ
UTF-8 Encoding 0xEF 0xBB 0xBB
UTF-16 Encoding 0xFEFB
UTF-32 Encoding 0x0000FEFB
C/C++/Java Escape \ufefb

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type None
Numeric Value NaN
Line Break Alphabetic
Changes When NFKC Casefolded Yes
NFKC Casefold "ل" U+0644 Arabic Letter Lam
"ا" U+0627 Arabic Letter Alef
NFKC Simple Casefold "ل" U+0644 Arabic Letter Lam
"ا" U+0627 Arabic Letter Alef
Script Arabic
Script Extensions Arabic
Indic Syllabic Category Other
ID Start Yes
XID Start Yes
ID Continue Yes
XID Continue Yes
Alphabetic Yes
Vertical Orientation Rotated
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Alphabetic letter
Sentence Break OLetter