Special characters ( English Specials ) - the 161st unit of the Unicode standard and the last one in the Main multilingual plane . It occupies code positions from U + FFF0 to U + FFFF. Of the sixteen code positions contained in the block, only five are involved. The block is notable for the filler character ( ), referring to the two most frequently used Unicode characters, which are displayed in most operating systems (mostly in browsers) when a Unicode character is not supported by the user's system itself or is not included in the font set. In other cases, a white vertical rectangle (▯) is displayed instead of the placeholder symbol.
| Special symbols | |
|---|---|
| English Specials | |
| Range | FFF0 — FFFF (16 code positions) |
| Plane | Bmp |
| Writing | Common signs |
| Basic standards | ISO 8859 , ISO 646 |
| Code positions | |
| Involved | 5 code positions fourspecial character |
| Reserved | 9 code positions 2 non-character characters |
| Unicode character change history | |
| 1.0.0 | 1 (+1) |
| 2.1 | 2 (+1) |
| 3.0 | 5 (+3) |
Content
Character list
| Colour | Letter added in version |
|---|---|
| 2.1 | |
| 3.0 | |
| reserved | |
| not a symbol |
| Code | Symbol | Title | HTML | |
|---|---|---|---|---|
| 16-hour | 10-hour | |||
| U + FFF0 | <reserved-FFF0> | & # xFFF0; | & # 65520; | |
| U + FFF1 | <reserved-FFF1> | & # xFFF1; | & # 65521; | |
| U + FFF2 | <reserved-FFF2> | & # xFFF2; | & # 65522; | |
| U + FFF3 | <reserved-FFF3> | & # xFFF3; | & # 65523; | |
| U + FFF4 | <reserved-FFF4> | & # xFFF4; | & # 65524; | |
| U + FFF5 | <reserved-FFF5> | & # xFFF5; | & # 65525; | |
| U + FFF6 | <reserved-FFF6> | & # xFFF6; | & # 65526; | |
| U + FFF7 | <reserved-FFF7> | & # xFFF7; | & # 65527; | |
| U + FFF8 | <reserved-FFF8> | & # xFFF8; | & # 65528; | |
| U + FFF9 | interlinear annotation anchor | & # xFFF9; | & # 65529; | |
| U + FFFA | interlinear annotation separator | & # xFFFA; | & # 65530; | |
| U + FFFB | interlinear annotation terminator | & # xFFFB; | & # 65531; | |
| U + FFFC | object replacement character | & # xFFFC; | & # 65532; | |
| U + FFFD | replacement character | & # xFFFD; | & # 65533; | |
| U + FFFE | <noncharacter-FFFE> | & # xFFFE; | & # 65534; | |
| U + FFFF | <noncharacter-ffff> | & # xFFFF; | & # 65535; | |
Compact table
| Special symbols | ||||||||||||||||
| 0 | one | 2 | 3 | four | five | 6 | 7 | eight | 9 | A | B | C | D | E | F | |
| U + FFFx | IA A | IA S | IA T | Obj | ||||||||||||
See also
- Character set
- UTF-8
Notes
- ↑ Unicode character database . The Unicode Standard . The date of circulation is January 30, 2017.
- ↑ Enumerated Versions of the Unicode Standard . The Unicode Standard . The date of circulation is January 30, 2017.