Teletext character set
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This article covers technical details of the
character encoding Character encoding is the process of assigning numbers to graphical Graphics (from Greek Greek may refer to: Greece Anything of, from, or related to Greece Greece ( el, Ελλάδα, , ), officially the Hellenic Republic, is a country ...
system defined by ETS 300 706, a standard for
World System Teletext World System Teletext (WST) is the name of a standard for encoding and displaying teletext information, which is used as the standard for teletext throughout Europe today. It was adopted into the international standard ITU-R, CCIR 653 (now ITU-R BT ...
, and used for the
Viewdata Viewdata is a Videotex implementation. It is a type of information retrieval service in which a subscriber can Access control, access a remote database via a common carrier Communication channel, channel, request data and receive requested dat ...
and
Teletext A British Ceefax football index page from October 2009, showing the three-digit page numbers for a variety of football news stories Teletext, or broadcast teletext, is a standard for displaying text and rudimentary graphics on suitably equipp ...
variants of
Videotex Videotex (or interactive videotex) was one of the earliest implementations of an end-user information system. From the late 1970s to early 2010s, it was used to deliver information (usually pages of text) to a user in computer-like format, typi ...
in Europe.


Character sets

The following tables show various Teletext character sets. Each character is shown with a potential
Unicode Unicode, formally the Unicode Standard, is an information technology Technical standard, standard for the consistent character encoding, encoding, representation, and handling of Character (computing), text expressed in most of the world's wri ...

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. In formats where compatibility with ECMA-48's
C0 control codes The C0 and C1 control code or control character sets define control codes for use in text by computer systems that use ASCII and derivatives of ASCII. The codes represent non-printable character, additional information about the text, such as t ...
such as and is not required, these control codes are sometimes mapped transparently to the Unicode C0 control code range (U+0000 through U+001F). Amongst C1 control code sets, the Videotex character set#C1 control codes, ITU T.101 C1 control codes for "Serial" Data Syntax 2, are mostly a transposition of the Teletext spacing controls, except for the inclusion of at 0x9B.


Latin


G0


G2


Greek


G0


G2


Cyrillic


G0


G2


Arabic

Note that each Arabic Arabic script in Unicode#Contextual forms, contextual/positional character in the tables below is shown with the non-positional Unicode equivalent if available.


G0


G2


Hebrew


Graphics character sets


G1 block mosaics

: Same table as above, rendered with bitmaps: :


G3 smooth mosaics and line drawing


References

{{character encodings Character sets Teletext