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Technical
Report
ISO/IEC TR 2375
First edition
Information technology –
2024-07
Registered escape sequences and
coded character sets
Technologies de l'information — Séquences d'échappement et
jeux de caractères codés enregistrés
Reference number
© ISO/IEC 2024
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© ISO/IEC 2024 – All rights reserved
ii
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 International Register . 3
4.1 Purpose of the International Register .3
4.2 Location of the International Register .3
4.3 Machine readability .3
4.4 Catalogue .3
4.4.1 Structure of the catalogue .3
4.4.2 Registration number .4
4.5 Contents in a registration .5
4.5.1 Copyright of the content .5
4.5.2 Cover page .5
4.5.3 Format of registration number on the cover page .5
4.5.4 Escape sequences .5
4.5.5 Sponsoring authority . .5
4.5.6 Origin .6
4.5.7 Owner of origin .6
4.5.8 Copyright owner .6
4.5.9 Code table .6
4.5.10 List of character names .6
4.6 Format of reference to an existing registration .6
4.7 Exception for reference to international and national standards .7
5 ISO/IEC supervisory body . 7
5.1 Administrative responsibility .7
5.2 Editorial maintenance .7
5.3 Record of corrections .7
5.4 Record of revisions .7
5.4.1 Revisions to the coded character set.7
5.4.2 Addition of or revision to the ISO/IEC 10646 mapping .7
5.5 Withdrawal .8
Annex A (informative) Details of registrations in the International Register . 9
Annex B (informative) Coded character sets with special consideration . 14
Annex C (informative) Criteria for the allocation of ESC F sequences .15
s
Annex D (informative) Layout of code tables .16
Annex E (informative) Example of a mapping table .23
Bibliography .26
© ISO/IEC 2024 – All rights reserved
iii
Foreword
ISO (the International Organization for Standardization) and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide standardization. National bodies that are
members of ISO or IEC participate in the development of International Standards through technical
committees established by the respective organization to deal with particular fields of technical activity.
ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations,
governmental and non-governmental, in liaison with ISO and IEC, also take part in the work.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of document should be noted. This document was drafted in accordance with the editorial rules of the ISO/
IEC Directives, Part 2 (see www.iso.org/directives or /members_experts/refdocs).
ISO and IEC draw attention to the possibility that the implementation of this document may involve the
use of (a) patent(s). ISO and IEC take no position concerning the evidence, validity or applicability of any
claimed patent rights in respect thereof. As of the date of publication of this document, ISO and IEC had not
received notice of (a) patent(s) which may be required to implement this document. However, implementers
are cautioned that this may not represent the latest information, which may be obtained from the patent
database available at www.iso.org/patents and https://patents.iec.ch. ISO and IEC shall not be held
responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www.iso.org/iso/foreword.html.
In the IEC, see /understanding-standards.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology,
Subcommittee SC 2, Coded character sets.
This first edition cancels and replaces ISO/IEC 2375:2003, which has been technically revised.
The main changes are as follows:
— removal of the registration procedure specification due to the cancellation of the Registration Authority;
— inclusion of the registered data published by the former Registration Authority.
Any feedback or questions on this document should be directed to the user’s national standards
body. A complete listing of these bodies can be found at www.iso.org/members.html and
/national-committees.
© ISO/IEC 2024 – All rights reserved
iv
Introduction
ISO/IEC 2022 uses the escape sequence to control the code extension procedures. The International Register
defined by ISO/IEC 2375 (previous edition of this document) provided the escape sequences and character sets.
Since no new escape sequences have been registered since 2004, and no new organization was found to
take over the registration authority as of 2020, ISO/IEC JTC1 / SC2 decided to replace ISO/IEC 2375 with
ISO/IEC TR 2375 (this document), which contains the data provided by the former registration authority, to
ensure interoperability with archival digital data encoded by ISO/IEC 2022. This document and electronic
attachments replace the International Register.
© ISO/IEC 2024 – All rights reserved
v
Technical Report ISO/IEC TR 2375:2024(en)
Information technology – Registered escape sequences and
coded character sets
1 Scope
This document provides the escape sequences and coded character sets that were registered and published
by the former registration authority in ISO/IEC 2375 (the previous edition of this document).
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
bit combination
ordered set of bits used for the representation of characters
3.2
byte
bit string that is operated upon as a unit
3.3
catalogue
list of the registrations and supplementary data, with reference to their locations
3.4
character
member of a set of elements used for the organization, control, or representation of data
3.5
coded character set
set of unambiguous rules that establishes a character set and the relationship between the characters of the
set and their coded representation
3.6
code position
part of a code table identified by its column and row coordinates
3.7
code table
table showing the characters allocated to each bit combination in a code
3.8
combining character
member of an identified subset of the coded character set intended for combination either
© ISO/IEC 2024 – All rights reserved
a) with the preceding non-combining graphic character, or with a sequence of combining characters
preceded by a non-combining character (as presented in ISO/IEC 10646), or
b) with the following non-combining graphic character, or with a sequence of combining characters
followed by a non-combining character (as presented in ISO/IEC 6937)
3.9
combining sequence
sequence of graphic characters consisting of either
a) a non-combining character followed by one or more combining characters (as presented i
...