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BS ISO/IEC 6429:1992

Current
Current

The latest, up-to-date edition.

Information technology. Control functions for coded character sets
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-04-1993

1 Scope
2 Conformance
2.1 Types of conformance
2.2 Conformance of information interchange
2.3 Conformance of devices
3 Normative references
4 Notation and definitions
4.1 Notation
4.2 Definitions
5 Coded representation
5.1 General
5.2 Elements of the C0 set
5.3 Elements of the C1 set
5.4 Control sequences
5.5 Independent control functions
5.6 Control strings
6 Device concepts
6.1 Components
6.2 The data stream
6.3 The graphic image output
6.4 Formator functions and editor functions
6.5 Selected and qualified areas
6.6 Auxiliary input/output devices
6.7 Tabulation and fields
7 Modes
7.1 The concept of modes
7.2 Definition of modes
7.3 Interaction between modes
7.4 Private modes
8 Control functions
8.1 Types of control functions
8.2 Categories of control functions
8.3 Definition of control functions
Annexes
A Formator functions and editor functions
B Coding examples
C Text composition considerations
D Implementation-dependent features
E Text area formats
F Differences between the third and the second
     edition of ISO/IEC 6429
G Bibliography

Describes ISO 7 and 8 bit coded character sets, specifically control functions. Specifies technical means to handle bidirectional texts in character imaging devices in: texts in different scripts presented in opposite directions (for example, texts in Latin and Hebrew); texts in single script of which specific parts need to be presented in an opposite direction (for example, numbers in Arabic or Hebrew text); texts like those above with a horizontal line orientation and a top to bottom line progression. Coverage includes conformance, notation and definitions, device concepts, modes and control functions. Also includes detailed annexes.

This International Standard defines control functions and their coded representations for use in a 7-bit code, an extended 7-bit code, an 8-bit code or an extended 8-bit code, if such a code is structured in accordance with International Standard ISO 2022.

This International Standard specifies technical means to handle bi-directional texts in character-imaging devices in the case of

  • texts in a single script of which specific parts need to be presented in an opposite direction (for example, numbers in Arabic or Hebrew text);

  • texts in different scripts presented in opposite directions (like texts in Latin and Arabic or texts in Latin and Hebrew;

  • texts like the above with a horizontal line orientation and a top-to-bottom line progression.

The control functions defined in this International Standard are intended to be used embedded in character-coded data for interchange, in particular with character-imaging devices.

In general, the control functions are defined by their effects on a character-imaging input/output device. It is, therefore, necessary to make certain assumptions about the architecture of such a device. These assumptions are as unrestrictive as possible; they are specified in clause 6.

In addition to being performed the control functions may need to be represented by a graphic symbol.

The structure of this International Standard is open-ended, so that more control functions can be included in future editions.

Other standards specifying control functions may define more restricted definitions of them than those in this International Standard.

The devices to which this International Standard applies can vary greatly from each other depending on the application for which a device has been specifically designed. It is technically and economically impractical for one device to implement all the facilities specified in this International Standard. The intention is that in any type of device only a limited selection of the facilities appropriate to the application will be implemented.

Committee
ICT/1
DevelopmentNote
Supersedes BS 7204(1989) & 91/68021 DC (03/2005)
DocumentType
Standard
Pages
96
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO/IEC 6429:1992 Identical

ISO/IEC 8859-8:1999 Information technology 8-bit single-byte coded graphic character sets Part 8: Latin/Hebrew alphabet
ISO/IEC 8859-1:1998 Information technology 8-bit single-byte coded graphic character sets Part 1: Latin alphabet No. 1
ISO/IEC 10646:2014 Information technology Universal Coded Character Set (UCS)
ISO/IEC 2022:1994 Information technology Character code structure and extension techniques
ISO/IEC 7350:1991 Information technology Registration of repertoires of graphic characters from ISO/IEC 10367
ISO/IEC 8859-6:1999 Information technology 8-bit single-byte coded graphic character sets Part 6: Latin/Arabic alphabet
ISO 1745:1975 Information processing Basic mode control procedures for data communication systems
ISO/IEC 8859-3:1999 Information technology 8-bit single-byte coded graphic character sets Part 3: Latin alphabet No. 3
ISO/IEC 8859-10:1998 Information technology 8-bit single-byte coded graphic character sets Part 10: Latin alphabet No. 6
ISO/IEC 8859-4:1998 Information technology 8-bit single-byte coded graphic character sets Part 4: Latin alphabet No. 4
ISO/IEC 8859-2:1999 Information technology 8-bit single-byte coded graphic character sets Part 2: Latin alphabet No. 2
ISO/IEC 2375:2003 Information technology — Procedure for registration of escape sequences and coded character sets
ISO/IEC 646:1991 Information technology ISO 7-bit coded character set for information interchange
ISO/IEC 8859-7:2003 Information technology 8-bit single-byte coded graphic character sets Part 7: Latin/Greek alphabet
ISO/IEC 8859-5:1999 Information technology 8-bit single-byte coded graphic character sets Part 5: Latin/Cyrillic alphabet
ECMA/TR 53 : 2ED 92 HANDLING OF BI-DIRECTIONAL TEXTS
ECMA 17 : 1968 GRAPHIC REPRESENTATION OF THE CONTROL CHARACTERS OF THE ECMA 7-BIT CODED CHARACTER SET FOR INFORMATION INTERCHANGE
ISO/IEC 10538:1991 Information technology Control functions for text communication
ISO/IEC 8859-9:1999 Information technology 8-bit single-byte coded graphic character sets Part 9: Latin alphabet No. 5

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