U+01C2 was added to Unicode in version 1.1 (1993). It belongs to the block Latin Extended-B in the Basic Multilingual Plane.

This character is a Other Letter and is mainly used in the Latin script. The character is also known as double-barred pipe and palatoalveolar click (IPA).

The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. In text U+01C2 behaves as Alphabetic regarding line breaks. It has type OLetter for sentence and ALetter for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

Not to be confused with the alveolar clicks. Unicode uses the obsolete description "alveolar click" for the palatal-click letter ⟨ǂ⟩.

The palatal or palato-alveolar clicks are a family of click consonants found only in Africa. The tongue is nearly flat, and is pulled back rather than down as in the postalveolar clicks, making a sharper sound than those consonants. The tongue makes an extremely broad contact across the roof of the mouth, making a determination of their place of articulation difficult, but Ladefoged & Traill (1984:18) find that the primary place of articulation is the palate, and say that "there is no doubt that [ǂ] should be described as a palatal sound".

The symbol in the International Phonetic Alphabet that represents the place of articulation of these sounds is ⟨ǂ⟩, a double-barred pipe. An older variant, the double-barred esh, ⟨ ʄ ⟩, is sometimes seen. This may be combined with a second letter or a diacritic to indicate the manner of articulation, though this is commonly omitted for tenuis clicks.

In the orthographies of individual languages, palatal clicks may be written either with digraphs based on the pipe letter of the IPA, or using the Latin alphabet. Nama and most Saan languages use the former. Conventions for the latter include multigraphs based on ⟨ç⟩ in Juǀʼhoansi (1987 orthography) and originally in Naro, the latter since changed to ⟨tc⟩, and on ⟨qc⟩. In the 19th century, ⟨v⟩ was sometimes used (see click letters); this might be the source of the Doke letter for the voiceless palatal click, ⟨ↆ⟩, apparently a v over-struck with a pipe.


System Representation
UTF-8 C7 82
UTF-16 01 C2
UTF-32 00 00 01 C2
URL-Quoted %C7%82
HTML-Escape ǂ
Wrong windows-1252 Mojibake ǂ
alias double-barred pipe
alias palatoalveolar click (IPA)
LaTeX \textdoublepipe


Complete Record

Property Value
Age (age) 1.1
Block (blk) Latin_Ext_B
General Category (gc) Other Letter
Script (sc) Latin
Bidirectional Category (bc) Left To Right
Combining Class (ccc) Not Reordered
Decomposition Type (dt) None
Decomposition Mapping (dm) ǂ
Lowercase (Lower)
Simple Lowercase Mapping (slc) ǂ
Lowercase Mapping (lc) ǂ
Uppercase (Upper)
Simple Uppercase Mapping (suc) ǂ
Uppercase Mapping (uc) ǂ
Simple Titlecase Mapping (stc) ǂ
Titlecase Mapping (tc) ǂ
Case Folding (cf) ǂ
ASCII Hex Digit (AHex)
Alphabetic (Alpha)
Bidi Control (Bidi_C)
Bidi Mirrored (Bidi_M)
Bidi Paired Bracket (bpb) ǂ
Bidi Paired Bracket Type (bpt) None
Cased (Cased)
Composition Exclusion (CE)
Case Ignorable (CI)
Full Composition Exclusion (Comp_Ex)
Changes When Casefolded (CWCF)
Changes When Casemapped (CWCM)
Changes When NFKC Casefolded (CWKCF)
Changes When Lowercased (CWL)
Changes When Titlecased (CWT)
Changes When Uppercased (CWU)
Dash (Dash)
Deprecated (Dep)
Default Ignorable Code Point (DI)
Diacritic (Dia)
East Asian Width (ea) Neutral
Extender (Ext)
FC NFKC Closure (FC_NFKC) ǂ
Grapheme Cluster Break (GCB) Any
Grapheme Base (Gr_Base)
Grapheme Extend (Gr_Ext)
Hex Digit (Hex)
Hangul Syllable Type (hst) Not Applicable
Hyphen (Hyphen)
ID Continue (IDC)
Ideographic (Ideo)
ID Start (IDS)
IDS Binary Operator (IDSB)
IDS Trinary Operator and (IDST)
Indic Positional Category (InPC) NA
Indic Syllabic Category (InSC) Other
ISO 10646 Comment (isc)
Joining Group (jg) No_Joining_Group
Join Control (Join_C)
Jamo Short Name (JSN)
Joining Type (jt) Non Joining
Line Break (lb) Alphabetic
Logical Order Exception (LOE)
Math (Math)
Noncharacter Code Point (NChar)
NFC Quick Check (NFC_QC) Yes
NFD Quick Check (NFD_QC) Yes
NFKC Casefold (NFKC_CF) ǂ
NFKC Quick Check (NFKC_QC) Yes
NFKD Quick Check (NFKD_QC) Yes
Numeric Type (nt) None
Numeric Value (nv) NaN
Other Alphabetic (OAlpha)
Other Default Ignorable Code Point (ODI)
Other Grapheme Extend (OGr_Ext)
Other ID Continue (OIDC)
Other ID Start (OIDS)
Other Lowercase (OLower)
Other Math (OMath)
Other Uppercase (OUpper)
Pattern Syntax (Pat_Syn)
Pattern White Space (Pat_WS)
Quotation Mark (QMark)
Radical (Radical)
Sentence Break (SB) OLetter
Simple Case Folding (scf) ǂ
Script Extension (scx) Latin
Soft Dotted (SD)
STerm (STerm)
Terminal Punctuation (Term)
Unified Ideograph (UIdeo)
Variation Selector (VS)
Word Break (WB) ALetter
White Space (WSpace)
XID Continue (XIDC)
XID Start (XIDS)
Expands On NFC (XO_NFC)
Expands On NFD (XO_NFD)
Expands On NFKC (XO_NFKC)
Expands On NFKD (XO_NFKD)