| Basic Latin or C0 Controls and Basic Latin | |
|---|---|
| Range | U+0000..U+007F (128 code points) |
| Plane | BMP |
| Scripts | Latin (52 characters) Common (76 characters) |
| Major alphabets | English French German Spanish Vietnamese |
| Symbol sets | Arabic numerals Punctuation |
| Assigned | 128 code points 33 Control or Format |
| Unused | 0 reserved code points |
| Source standards | ISO/IEC 8859,ISO 646 |
| Unicode version history | |
| 1.0.0(1991) | 128 (+128) |
| Unicode documentation | |
| Code chart ∣ Web page | |
| Note:[1][2] | |
TheBasic LatinUnicode block,[3] sometimes informally calledC0 Controls and Basic Latin,[4] is the first block of theUnicode standard, and the only block which is encoded in one byte inUTF-8. The block contains all theletters andcontrol codes of the ASCII encoding. It ranges from U+0000 to U+007F, contains 128 characters and includes theC0 controls, ASCIIpunctuation andsymbols,ASCIIdigits, both theuppercase andlowercase of theEnglish alphabet and acontrol character.
The Basic Latin block was included in its present form from version 1.0.0 of the Unicode Standard, without addition or alteration of the character repertoire.[5] Its block name in Unicode 1.0 wasASCII.[6]
The C0 Controls and Basic Latin block contains six subheadings.[8]
TheC0 Controls, referred to as C0 ASCII control codes in version 1.0, are inherited from ASCII and other 7-bit and 8-bit encoding schemes. The Alias names for C0 controls are taken from theISO/IEC 6429:1992 standard.[8]
This subheading refers to standard punctuation characters, simplemathematical operators, and symbols like the dollar sign, percent, ampersand, underscore, and pipe.[8]
The ASCII Digits subheading contains the standard European number characters 1–9 and 0.[8]
The Uppercase Latin alphabet subheading contains the standard 26-letter unaccented Latin alphabet in themajuscule.[8]
The Lowercase Latin Alphabet subheading contains the standard 26-letter unaccented Latin alphabet in theminuscule.[8]
The Control Character subheading contains the"Delete" character.[8]
The table below shows the number ofletters, symbols and control codes in each of the subheadings in the C0 Controls and Basic Latin block.
| Subheading | Number of symbols | Range of characters |
|---|---|---|
| C0 controls | 32 control codes | U+0000 to U+001F |
| ASCII punctuation and symbols | 33 punctuation marks and symbols | U+0020 to U+002F, U+003A to U+0040, U+005B to U+0060 and U+007B to U+007E |
| ASCII digits | 10 digits | U+0030 to U+0039 |
| Uppercase Latin Alphabet | 26 unaccented Latin letters in the majuscule. | U+0041 to U+005A |
| Lowercase Latin Alphabet | 26 unaccented Latin letters in the minuscule. | U+0061 to U+007A |
| Control character | 1 control code containing the "Delete" character. | U+007F |
| C0 Controls and Basic Latin[a] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
| U+000x | NUL | SOH | STX | ETX | EOT | ENQ | ACK | BEL | BS | HT | LF | VT | FF | CR | SO | SI |
| U+001x | DLE | DC1 | DC2 | DC3 | DC4 | NAK | SYN | ETB | CAN | EM | SUB | ESC | FS | GS | RS | US |
| U+002x | SP | ! | " | # | $ | % | & | ' | ( | ) | * | + | , | - | . | / |
| U+003x | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | : | ; | < | = | > | ? |
| U+004x | @ | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O |
| U+005x | P | Q | R | S | T | U | V | W | X | Y | Z | [ | \ | ] | ^ | _ |
| U+006x | ` | a | b | c | d | e | f | g | h | i | j | k | l | m | n | o |
| U+007x | p | q | r | s | t | u | v | w | x | y | z | { | | | } | ~ | DEL |
| ||||||||||||||||
Several of the characters are defined to render as astandardized variant if followed by variant indicators.
A variant is defined for a zero with a short diagonal stroke: U+0030 DIGIT ZERO, U+FE00 VS1 (0︀).[9][10]
Twelve characters (#, *, and the digits) can be followed by U+FE0E VS15 or U+FE0F VS16 to createemoji variants.[11][12][13][14]They arekeycap base characters, for example #️⃣ (U+0023 NUMBER SIGN U+FE0F VS16 U+20E3 COMBINING ENCLOSING KEYCAP). The VS15 version is "text presentation" while the VS16 version is "emoji-style".[10]
| U+ | 0023 | 002A | 0030 | 0031 | 0032 | 0033 | 0034 | 0035 | 0036 | 0037 | 0038 | 0039 |
| base | # | * | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| base+VS15+keycap | #︎⃣ | *︎⃣ | 0︎⃣ | 1︎⃣ | 2︎⃣ | 3︎⃣ | 4︎⃣ | 5︎⃣ | 6︎⃣ | 7︎⃣ | 8︎⃣ | 9︎⃣ |
| base+VS16+keycap | #️⃣ | *️⃣ | 0️⃣ | 1️⃣ | 2️⃣ | 3️⃣ | 4️⃣ | 5️⃣ | 6️⃣ | 7️⃣ | 8️⃣ | 9️⃣ |
The following Unicode-related documents record the purpose and process of defining specific characters in the Basic Latin block:
| Version | Final code points[a] | Count | UTC ID | L2 ID | WG2 ID | Document |
|---|---|---|---|---|---|---|
| 1.0.0 | U+0000..007F | 128 | (to be determined) | |||
| UTC/1999-013 | Karlsson, Kent (1999-05-27),Tildes and micro sign decompositions | |||||
| L2/99-176R | Moore, Lisa (1999-11-04), "Micro Sign Case Mappings",Minutes from the joint UTC/L2 meeting in Seattle, June 8-10, 1999 | |||||
| L2/04-145 | Starner, David (2004-04-30),C with stroke character examples from BAE report 1884 (Dorsey) | |||||
| L2/04-202 | Anderson, Deborah (2004-06-07),Slashed C Feedback | |||||
| N3046 | Suignard, Michel (2006-02-22),Improving formal definition for control characters | |||||
| N3103 (pdf,doc) | Umamaheswaran, V. S. (2006-08-25), "M48.33",Unconfirmed minutes of WG 2 meeting 48, Mountain View, CA, USA; 2006-04-24/27 | |||||
| L2/11-043 | Freytag, Asmus; Karlsson, Kent (2011-02-02),Proposal to correct mistakes and inconsistencies in certain property assignments for super and subscripted letters | |||||
| L2/11-160 | PRI #181 Changing General Category of Twelve Characters, 2011-05-02 | |||||
| L2/11-261R2 | Moore, Lisa (2011-08-16), "Consensus 128-C3",UTC #128 / L2 #225 Minutes,Accept Ken Whistler's recommendations in L2/11-281 on name aliases for control characters with the addition of the abbreviations BEL and NUL. | |||||
| L2/11-438[b][c] | N4182 | Edberg, Peter (2011-12-22),Emoji Variation Sequences (Revision of L2/11-429) | ||||
| L2/15-107 | Moore, Lisa (2015-05-12), "Consensus 143-C5",UTC #143 Minutes,Add the 12 keycap sequences in emoji-data.txt as provisional named sequences in Unicode 8.0. | |||||
| L2/15-268 | Beeton, Barbara; Freytag, Asmus; Iancu, Laurențiu; Sargent, Murray (2015-10-30),Proposal to Represent the Slashed Zero Variant of Empty Set | |||||
| L2/15-301[d][c] | Pournader, Roozbeh (2015-11-01),A proposal for 278 standardized variation sequences for emoji | |||||
| L2/15-254 | Moore, Lisa (2015-11-16), "B.12.1.2 Proposal to Represent the Slashed Zero Variant of Empty Set",UTC #145 Minutes | |||||
| L2/17-294 | N4914 | Lunde, Ken (2017-08-14),Proposal to add standardized variation sequence for U+FF10 FULLWIDTH DIGIT ZERO | ||||
| L2/22-019 | Scherer, Markus; et al. (2022-01-19), "F.2 F4: U+0019 in ISO vs. NameAliases.txt vs. chart/NamesList.txt",UTC #170 properties feedback & recommendations | |||||
| L2/22-016 | Constable, Peter (2022-04-21), "Consensus 170-C24",UTC #170 Minutes,For U+0019, add a Name alias "EM" of type abbreviation, for Unicode version 15.0. | |||||
Definitions from Wiktionary
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