Teletext character set
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This article covers technical details of the character encoding system defined by ETS 300 706, a standard for World System Teletext, and used for the Viewdata and Teletext variants of Videotex in Europe.
Character sets
The following tables show various Teletext character sets. Each character is shown with a potential Unicode equivalent if available. Space and control characters are represented by the abbreviations for their names.
Control characters
Control characters are used to set foreground and background color, character height, current default character set, and other attributes.[1][2]
These C0 control codes mostly correspond to a transposition of the ITU T.101 C1 control codes for "Serial" Data Syntax 2,[3] except for the inclusion of ESC at 0x1B instead of CSI.
- ^ The ETS 300 706 name of this control code is "Contiguous Mosaic Graphics", and it switches mosaic characters to contiguous (connected) display.[2] Its other name of "Stop Lining" arises from other formats, as well as using it to switch mosaic characters to connected display, also using it to switch alphanumeric characters to non-underlined display.[3]
- ^ The ETS 300 706 name of this control code is "Separated Mosaic Graphics", and it switches mosaic characters to separated display.[2] Its other name of "Start Lining" arises from other formats, as well as using it to switch mosaic characters to separated display, also using it to switch alphanumeric characters to underlined display.[3]
- ^ ESC is also given the alternative name of "Switch" by ETS 300 706. It is used in certain contexts as a toggle between two G0 sets previously designated by dedicated packets.[2]
Latin
G0
Letter Number Punctuation Symbol Other Undefined National option subset (see table below)
Letter Number Punctuation Symbol Other Undefined
G2
Letter Number Punctuation Symbol Other Undefined Diacritical marks for use with G0 characters
Greek
G0
Letter Number Punctuation Symbol Other Undefined
G2
Letter Number Punctuation Symbol Other Undefined Diacritical marks for use with G0 characters
Cyrillic
G0
Letter Number Punctuation Symbol Other Undefined
Letter Number Punctuation Symbol Other Undefined
Letter Number Punctuation Symbol Other Undefined
G2
Letter Number Punctuation Symbol Other Undefined Diacritical marks for use with G0 characters
Arabic
Note that each Arabic contextual/positional character in the tables below is shown with the non-positional Unicode equivalent if available.
G0
Letter Number Punctuation Symbol Other Undefined
G2
Hebrew
Letter Number Punctuation Symbol Other Undefined
Graphics character sets
G1 block mosaics
Letter Number Punctuation Symbol Other Undefined
G3 smooth mosaics and line drawing
Letter Number Punctuation Symbol Other Undefined
References
- ^ "4. Teletext and Minitel", L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS (PDF), 2019-01-04, p. 2
- ^ a b c d e "12.2 Spacing attributes" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, pp. 76–80, retrieved 4 April 2020
- ^ a b c British Standards Institution (1982-06-01). Attribute Control Set for UK Videotex (PDF). ITSCJ/IPSJ. ISO-IR-56.
- ^ "15.6.1, 15.6.2" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, pp. 114–115, retrieved 4 April 2020
- ^ a b "TELTXTG0.TXT", L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS (PDF), 2019-01-04
- ^ "15.6.2 Latin National Option Sub-Sets" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 115, retrieved 4 April 2020
- ^ "15.6.3 Latin G2 Set" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 116, retrieved 4 April 2020
- ^ "TELTXTG2.TXT", L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS (PDF), 2019-01-04
- ^ "15.6.8 Greek G0 Set" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 121, retrieved 4 April 2020
- ^ "15.6.9 Greek G2 Set" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 122, retrieved 4 April 2020
- ^ "15.6.5 Cyrillic G0 Set - Option 2 - Russian/Bulgarian" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 118, retrieved 4 April 2020
- ^ "15.6.4 Cyrillic G0 Set - Option 1 - Serbian/Croatian" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 117, retrieved 4 April 2020
- ^ "15.6.6 Cyrillic G0 Set - Option 3 - Ukrainian" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 119, retrieved 4 April 2020
- ^ "15.6.7 Cyrillic G2 Set" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 120, retrieved 4 April 2020
- ^ "15.6.10 Arabic G0 Set" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 123, retrieved 4 April 2020
- ^ "15.6.11 Arabic G2 Set" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 124, retrieved 4 April 2020
- ^ "15.6.12 Hebrew G0 Set" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 125, retrieved 4 April 2020
- ^ a b c "15.7.1 G1 Block Mosaics Set" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 126, retrieved 4 April 2020
- ^ "TELTXTG1.TXT", L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS (PDF), 2019-01-04
- ^ "15.7.2 G3 Smooth Mosaics and Line Drawing Set" (PDF), Enhanced Teletext specification, European Telecommunications Standards Institute (ETSI), May 1997, p. 127, retrieved 4 April 2020
- ^ "TELTXTG3.TXT", L2/19-025: Proposal to add characters from legacy computers and teletext to the UCS (PDF), 2019-01-04
| Early telecommunications | |
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| ISO/IEC 8859 |
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| Bibliographic use | |
| National standards | |
| ISO/IEC 2022 | |
| Mac OS Code pages ("scripts") | |
| DOS code pages | |
| IBM AIX code pages | |
| Windows code pages | |
| EBCDIC code pages | |
| DEC terminals (VTx) | |
| Platform specific |
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| Unicode / ISO/IEC 10646 | |
| TeX typesetting system | |
| Miscellaneous code pages | |
| Control character | |
| Related topics | |
