Home U+0000 to U+007F Basic Latin
Glyph for U+005B
Source: Noto Sans

U+005B Left Square Bracket

U+005B was added in Unicode version 1.1 in 1993. It belongs to the block U+0000 to U+007F Basic Latin in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Open Punctuation and is commonly used, that is, in no specific script. The character is also known as opening square bracket (1.0).

The glyph is not a composition. Its East Asian Width is narrow. In bidirectional text it acts as Other Neutral. When changing direction it is mirrored into Glyph for U+005D Right Square Bracket. U+005B prohibits a line break after it.

The CLDR project calls this character “open square bracket” for use in screen reading software. It assigns these additional labels, e.g. for search in emoji pickers: bracket, crotchet, square bracket.

Representations

System Representation
Nº 91
UTF-8 5B
UTF-16 00 5B
UTF-32 00 00 00 5B
URL-Quoted %5B
HTML hex reference [
HTML named entity [
HTML named entity [
alias opening square bracket (1.0)
AGL: Latin-1 bracketleft
AGL: Latin-2 bracketleft
AGL: Latin-3 bracketleft
AGL: Latin-4 bracketleft
AGL: Latin-5 bracketleft
Adobe Glyph List bracketleft
digraph <(

Related Characters

Elsewhere

Complete Record

Property Value
Age (age) 1.1 (1993)
Unicode Name (na) LEFT SQUARE BRACKET
Unicode 1 Name (na1) OPENING SQUARE BRACKET
Block (blk) Basic Latin
General Category (gc) Open Punctuation
Script (sc) Common
Bidirectional Category (bc) Other Neutral
Combining Class (ccc) Not Reordered
Decomposition Type (dt) none
Decomposition Mapping (dm) Glyph for U+005B Left Square Bracket
Lowercase (Lower) ✘
Simple Lowercase Mapping (slc) Glyph for U+005B Left Square Bracket
Lowercase Mapping (lc) Glyph for U+005B Left Square Bracket
Uppercase (Upper) ✘
Simple Uppercase Mapping (suc) Glyph for U+005B Left Square Bracket
Uppercase Mapping (uc) Glyph for U+005B Left Square Bracket
Simple Titlecase Mapping (stc) Glyph for U+005B Left Square Bracket
Titlecase Mapping (tc) Glyph for U+005B Left Square Bracket
Case Folding (cf) Glyph for U+005B Left Square Bracket
ASCII Hex Digit (AHex) ✘
Alphabetic (Alpha) ✘
Bidi Control (Bidi_C) ✘
Bidi Mirrored (Bidi_M) ✔
Composition Exclusion (CE) ✘
Case Ignorable (CI) ✘
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) ✘
Cased (Cased) ✘
Full Composition Exclusion (Comp_Ex) ✘
Default Ignorable Code Point (DI) ✘
Dash (Dash) ✘
Deprecated (Dep) ✘
Diacritic (Dia) ✘
Emoji Modifier Base (EBase) ✘
Emoji Component (EComp) ✘
Emoji Modifier (EMod) ✘
Emoji Presentation (EPres) ✘
Emoji (Emoji) ✘
Extender (Ext) ✘
Extended Pictographic (ExtPict) ✘
FC NFKC Closure (FC_NFKC) Glyph for U+005B Left Square Bracket
Grapheme Cluster Break (GCB) Any
Grapheme Base (Gr_Base) ✔
Grapheme Extend (Gr_Ext) ✘
Grapheme Link (Gr_Link) ✘
Hex Digit (Hex) ✘
Hyphen (Hyphen) ✘
ID Continue (IDC) ✘
ID Start (IDS) ✘
IDS Binary Operator (IDSB) ✘
IDS Trinary Operator and (IDST) ✘
IDSU (IDSU) 0
ID_Compat_Math_Continue (ID_Compat_Math_Continue) 0
ID_Compat_Math_Start (ID_Compat_Math_Start) 0
Ideographic (Ideo) ✘
InCB (InCB) None
Indic Mantra Category (InMC) —
Indic Positional Category (InPC) NA
Indic Syllabic Category (InSC) Other
Jamo Short Name (JSN) —
Join Control (Join_C) ✘
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) Glyph for U+005B Left Square Bracket
NFKC Quick Check (NFKC_QC) Yes
NFKC_SCF (NFKC_SCF) Glyph for U+005B Left Square Bracket
NFKD Quick Check (NFKD_QC) Yes
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) ✘
Prepended Concatenation Mark (PCM) ✘
Pattern Syntax (Pat_Syn) ✔
Pattern White Space (Pat_WS) ✘
Quotation Mark (QMark) ✘
Regional Indicator (RI) ✘
Radical (Radical) ✘
Sentence Break (SB) Close
Soft Dotted (SD) ✘
Sentence Terminal (STerm) ✘
Terminal Punctuation (Term) ✘
Unified Ideograph (UIdeo) ✘
Variation Selector (VS) ✘
Word Break (WB) Other
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) ✘
Bidi Mirrored Glyph (bmg) Glyph for U+005D Right Square Bracket
Bidi Paired Bracket (bpb) Glyph for U+005D Right Square Bracket
Bidi Paired Bracket Type (bpt) Open
East Asian Width (ea) narrow
Hangul Syllable Type (hst) Not Applicable
ISO 10646 Comment (isc) —
Joining Group (jg) No_Joining_Group
Joining Type (jt) Non Joining
Line Break (lb) Open Punctuation
Numeric Type (nt) none
Numeric Value (nv) not a number
Simple Case Folding (scf) Glyph for U+005B Left Square Bracket
Script Extension (scx)
Vertical Orientation (vo) R