U+20E0 Combining Enclosing Circle Backslash
U+20E0 was added in Unicode version 1.1 in 1993. It belongs to the block
This character is a Enclosing Mark and inherits its
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Nonspacing Mark. When changing direction it is not mirrored. U+20E0 prohibits a line break before it. The glyph can be confused with 2 other glyphs.
For a discussion about the origins of this specific design see this answer on history.stackexchange. It pinpoints it to a meeting in 1931 in the context of the Geneva Convention Concerning the Unification of Road Signs.
The Wikipedia has the following information about this codepoint:
The general prohibition sign, also known informally as the no symbol, 'do not' sign, circle-backslash symbol, nay, interdictory circle, prohibited symbol, don't do it symbol, or universal no, is a red circle with a 45-degree diagonal line inside the circle from upper-left to lower-right. It is typically overlaid on a pictogram to warn that an activity is not permitted, or has accompanying text to describe what is prohibited.
Representations
System | Representation (click value to copy) |
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Nº | |
UTF-8 | |
UTF-16 | |
UTF-32 | |
URL-Quoted | |
HTML hex reference | |
Wrong windows-1252 Mojibake | |
Encoding: GB18030 (hex bytes) | |
RFC 5137 | |
Bash and Zsh inside echo -e | |
C and C++ | |
C# | |
CSS | |
Excel | |
Go | |
JavaScript | |
Modern JavaScript since ES6 | |
JSON | |
Java | |
Lua | |
Matlab | |
Perl | |
PHP | |
PostgreSQL | |
PowerShell | |
Python | |
Ruby | |
Rust | |
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Related Characters
Confusables
Elsewhere
Complete Record
Property | Value |
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1.1 (1993) | |
COMBINING ENCLOSING CIRCLE BACKSLASH | |
ENCLOSING CIRCLE SLASH | |
Combining Diacritical Marks for Symbols | |
Enclosing Mark | |
Inherited | |
Nonspacing Mark | |
Not Reordered | |
none | |
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✘ | |
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✘ | |
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✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
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Extend | |
✘ | |
✔ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
0 | |
0 | |
0 | |
✘ | |
Extend | |
— | |
NA | |
Other | |
— | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
Yes | |
Yes | |
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|
Yes | |
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Yes | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
Extend | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
Extend | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
✘ | |
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None | |
neutral | |
Not Applicable | |
— | |
No_Joining_Group | |
Transparent | |
Combining Mark | |
none | |
not a number | |
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U |