Home U+0300 to U+036F Combining Diacritical Marks
Glyph for U+034F
Source: Noto Sans

U+034F Combining Grapheme Joiner

U+034F was added to Unicode in version 3.2 (2002). It belongs to the block U+0300 to U+036F Combining Diacritical Marks in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Nonspacing Mark and inherits its script property from the preceding character.

The glyph is not a composition. It has a Ambiguous East Asian Width. In bidirectional context it acts as Nonspacing Mark and is not mirrored. In text U+034F behaves as Non-breaking (“Glue”) regarding line breaks. It has type Extend for sentence and Extend for word breaks. The Grapheme Cluster Break is Extend.

The Wikipedia has the following information about this codepoint:

The combining grapheme joiner (CGJ), U+034F ͏ COMBINING GRAPHEME JOINER is a Unicode character that has no visible glyph and is "default ignorable" by applications. Its name is a misnomer and does not describe its function: the character does not join graphemes. Its purpose is to semantically separate characters that should not be considered digraphs as well as to block canonical reordering of combining marks during normalization.

For example, in a Hungarian language context, adjoining letters c and s would normally be considered equivalent to the cs digraph. If they are separated by the CGJ, they will be considered as two separate graphemes. However, in contrast to the zero-width joiner and similar characters, the CGJ does not affect whether the two letters are rendered separately or as a ligature or cursively joined—the default behavior for this is determined by the font.

The CGJ is also needed for complex scripts. For example, in most cases the Hebrew cantillation accent metheg is supposed to appear to the left of the vowel point and by default most display systems will render it like this even if it is typed before the vowel. But in some words in Biblical Hebrew the metheg appears to the right of the vowel, and to tell the display engine to render it properly on the right, CGJ must be typed between the metheg and the vowel. Compare:

In the case of several consecutive combining diacritics, an intervening CGJ indicates that they should not be subject to canonical reordering.

In contrast, the "zero-width non-joiner" at U+200C in the General Punctuation range, which prevents two adjacent character from turning into a ligature.

Representations

System Representation
847
UTF-8 CD 8F
UTF-16 03 4F
UTF-32 00 00 03 4F
URL-Quoted %CD%8F
HTML hex reference ͏
Wrong windows-1252 Mojibake ◌͏
abbreviation CGJ

Elsewhere

Complete Record

Property Value
Age 3.2 (2002)
Unicode Name COMBINING GRAPHEME JOINER
Unicode 1 Name
Block Combining Diacritical Marks
General Category Nonspacing Mark
Script Inherited
Bidirectional Category Nonspacing Mark
Combining Class Not Reordered
Decomposition Type None
Decomposition Mapping Glyph for U+034F Combining Grapheme Joiner
Lowercase
Simple Lowercase Mapping Glyph for U+034F Combining Grapheme Joiner
Lowercase Mapping Glyph for U+034F Combining Grapheme Joiner
Uppercase
Simple Uppercase Mapping Glyph for U+034F Combining Grapheme Joiner
Uppercase Mapping Glyph for U+034F Combining Grapheme Joiner
Simple Titlecase Mapping Glyph for U+034F Combining Grapheme Joiner
Titlecase Mapping Glyph for U+034F Combining Grapheme Joiner
Case Folding Glyph for U+034F Combining Grapheme Joiner
ASCII Hex Digit
Alphabetic
Bidi Control
Bidi Mirrored
Composition Exclusion
Case Ignorable
Changes When Casefolded
Changes When Casemapped
Changes When NFKC Casefolded
Changes When Lowercased
Changes When Titlecased
Changes When Uppercased
Cased
Full Composition Exclusion
Default Ignorable Code Point
Dash
Deprecated
Diacritic
Emoji Modifier Base
Emoji Component
Emoji Modifier
Emoji Presentation
Emoji
Extender
Extended Pictographic
FC NFKC Closure Glyph for U+034F Combining Grapheme Joiner
Grapheme Cluster Break Extend
Grapheme Base
Grapheme Extend
Grapheme Link
Hex Digit
Hyphen
ID Continue
ID Start
IDS Binary Operator
IDS Trinary Operator and
Ideographic
Indic Mantra Category
Indic Positional Category NA
Indic Syllabic Category Other
Jamo Short Name
Join Control
Logical Order Exception
Math
Noncharacter Code Point
NFC Quick Check Yes
NFD Quick Check Yes
NFKC Quick Check Yes
NFKD Quick Check Yes
Other Alphabetic
Other Default Ignorable Code Point
Other Grapheme Extend
Other ID Continue
Other ID Start
Other Lowercase
Other Math
Other Uppercase
Prepended Concatenation Mark
Pattern Syntax
Pattern White Space
Quotation Mark
Regional Indicator
Radical
Sentence Break Extend
Soft Dotted
Sentence Terminal
Terminal Punctuation
Unified Ideograph
Variation Selector
Word Break Extend
White Space
XID Continue
XID Start
Expands On NFC
Expands On NFD
Expands On NFKC
Expands On NFKD
Bidi Paired Bracket Glyph for U+034F Combining Grapheme Joiner
Bidi Paired Bracket Type None
East Asian Width Ambiguous
Hangul Syllable Type Not Applicable
ISO 10646 Comment
Joining Group No_Joining_Group
Joining Type Transparent
Line Break Non-breaking (“Glue”)
Numeric Type None
Numeric Value not a number
Simple Case Folding Glyph for U+034F Combining Grapheme Joiner
Script Extension
Vertical Orientation R