Control Pictures
Control Pictures is a Unicode block containing characters for graphically representing the C0 control codes, and other control characters. Its block name in Unicode 1.0 was Pictures for Control Codes. Code points U+0000 NULL to U+0020 SPACE can be mapped onto their corresponding control picture by incrementing the code point by 0x2400. For example, the corresponding control picture for U+000A LINE FEED is 0x000A + 0x2400 = 0x240A (␊).
| Control Pictures | |
|---|---|
| Range | U+2400..U+243F (64 code points) |
| Plane | BMP |
| Scripts | Common |
| Symbol sets | Control code graphics |
| Assigned | 42 code points |
| Unused | 22 reserved code points |
| Unicode version history | |
| 1.0.0 (1991) | 37 (+37) |
| 3.0 (1999) | 39 (+2) |
| 16.0 (2024) | 42 (+3) |
| Unicode documentation | |
| Code chart ∣ Web page | |
| Note: [1][2] | |
Control Pictures is a Unicode block containing characters for graphically representing the C0 control codes, and other control characters. Its block name in Unicode 1.0 was Pictures for Control Codes.[3]
Code points U+0000 NULL to U+0020 SPACE can be mapped onto their corresponding control picture by incrementing the code point by 0x2400. For example, the corresponding control picture for U+000A LINE FEED is 0x000A + 0x2400 = 0x240A (␊).
Block
[edit]
| Control Pictures[1][2] Official Unicode Consortium code chart (PDF) | ||||||||||||||||
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | A | B | C | D | E | F | |
| U+240x | ␀ | ␁ | ␂ | ␃ | ␄ | ␅ | ␆ | ␇ | ␈ | ␉ | ␊ | ␋ | ␌ | ␍ | ␎ | ␏ |
| U+241x | ␐ | ␑ | ␒ | ␓ | ␔ | ␕ | ␖ | ␗ | ␘ | ␙ | ␚ | ␛ | ␜ | ␝ | ␞ | ␟ |
| U+242x | ␠ | ␡ | ␢ | ␣ |  | ␥ | ␦ | | | | ||||||
| U+243x | ||||||||||||||||
| Notes | ||||||||||||||||
History
[edit]The following Unicode-related documents record the purpose and process of defining specific characters in the Control Pictures block:
| Version | Final code points[a] | Count | L2 ID | WG2 ID | Document |
|---|---|---|---|---|---|
| 1.0.0 | U+2400..2424 | 37 | (to be determined) | ||
| 3.0 | U+2425 | 1 | N1138 | LaBonté, Alain (1995-01-30), Proposal to add new characters (Keyboard related) to 10646 | |
| N1203 | Umamaheswaran, V. S.; Ksar, Mike (1995-05-03), "6.1.6", Unconfirmed minutes of SC2/WG2 Meeting 27, Geneva | ||||
| N1303 (html, doc) | Umamaheswaran, V. S.; Ksar, Mike (1996-01-26), Minutes of Meeting 29, Tokyo | ||||
| L2/97-128 | N1564 | Paterson, Bruce (1997-05-15), Draft pDAM for various additional characters (the "holding bucket") | |||
| L2/97-288 | N1603 | Umamaheswaran, V. S. (1997-10-24), "7.3", Unconfirmed Meeting Minutes, WG 2 Meeting # 33, Heraklion, Crete, Greece, 20 June – 4 July 1997 | |||
| L2/98-005R | N1682 | Text of ISO 10646 - AMD 22 for PDAM registration and PDAM ballot, 1997-12-17 | |||
| L2/98-320 | N1898 | ISO/IEC 10646-1/FPDAM 22, AMENDMENT 22: Keyboard Symbols, 1998-10-22 | |||
| N1897 | Paterson, Bruce; Everson, Michael (1998-10-22), Disposition of Comments - FPDAM22 - Keyboard Symbols - SC2 N3191 | ||||
| L2/99-010 | N1903 (pdf, html, doc) | Umamaheswaran, V. S. (1998-12-30), Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25 | |||
| L2/99-126 | Paterson, Bruce (1999-04-14), Text for FDAM ballot ISO/IEC 10646 FDAM #22 - Keyboard symbols | ||||
| U+2426 | 1 | N1045 | Defect Report on 10646 Repoertoire (Add ISO 2047symbols), 1994-08-01 | ||
| N1203 | Umamaheswaran, V. S.; Ksar, Mike (1995-05-03), "6.1.3.2", Unconfirmed minutes of SC2/WG2 Meeting 27, Geneva | ||||
| L2/98-004R | N1681 | Text of ISO 10646 – AMD 18 for PDAM registration and FPDAM ballot, 1997-12-22 | |||
| N1875 | Defect Report on REVERSED QUESTION MARK in FPDAM 18, 1998-09-22 | ||||
| L2/98-318 | N1894 | Revised text of 10646-1/FPDAM 18, AMENDMENT 18: Symbols and Others, 1998-10-22 | |||
| L2/99-010 | N1903 (pdf, html, doc) | Umamaheswaran, V. S. (1998-12-30), "6.7.3", Minutes of WG 2 meeting 35, London, U.K.; 1998-09-21--25 | |||
| 16.0 | U+2427..2429 | 3 | L2/21-235 (full, no_attach, sources, mappings_zip) | Bettencourt, Rebecca; Ewell, Doug; Bánffy, Ricardo; Everson, Michael; Hietaniemi, Jarkko; Silva, Eduardo Marín; Mårtenson, Elias; Shoulson, Mark; Steele, Shawn; Turner, Rebecca (2021-12-20), Proposal to add further characters from legacy computers and teletext to the UCS | |
| L2/22-023 | Anderson, Deborah; Whistler, Ken; Pournader, Roozbeh; Constable, Peter (2022-01-22), "17 Legacy Computing Symbols", Recommendations to UTC #170 January 2022 on Script Proposals | ||||
| L2/21-235R (full, no_attach) | Bettencourt, Rebecca; Ewell, Doug; Bánffy, Ricardo; Everson, Michael; Hietaniemi, Jarkko; Silva, Eduardo Marín; Mårtenson, Elias; Shoulson, Mark; Steele, Shawn; Turner, Rebecca (2022-01-26), Proposal to add further characters from legacy computers and teletext to the UCS | ||||
| L2/22-016 | Constable, Peter (2022-04-21), "D.1 17 Legacy Computing Symbols", UTC #170 Minutes | ||||
| |||||
See also
[edit]References
[edit]- ^ "Unicode character database". The Unicode Standard. Retrieved 2023-07-26.
- ^ "Enumerated Versions of The Unicode Standard". The Unicode Standard. Retrieved 2023-07-26.
- ^ "3.8: Block-by-Block Charts" (PDF). The Unicode Standard. version 1.0. Unicode Consortium.