ISO/IEC 30112:2020
(Main)Information technology — Specification methods for cultural conventions
Information technology — Specification methods for cultural conventions
This document specifies description formats and functionality for the specification of cultural conventions, description formats for character sets, and description formats for binding character names to ISO/IEC 10646, as well as a set of default values for some of these items.
Technologies de l'information — Méthodes de spécification des conventions culturelles
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Standards Content (Sample)
INTERNATIONAL ISO/IEC
STANDARD 30112
First edition
2020-09
Information technology —
Specification methods for cultural
conventions
Technologies de l'information — Méthodes de spécification des
conventions culturelles
Reference number
©
ISO/IEC 2020
© ISO/IEC 2020
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ii © ISO/IEC 2020 – All rights reserved
Contents Page
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Bytes and characters . 2
3.2 Cultural and other major concepts . 2
3.3 FDCC-related categories . 3
4 Notations . 3
4.1 Notation for defining syntax . 3
4.2 Portable character set . 4
5 FDCC-set . 6
5.1 General . 6
5.2 FDCC-set description . 7
5.2.1 General . 7
5.2.2 Character representation . 8
5.2.3 Continuation of lines . 9
5.2.4 Names for copy keyword . 9
5.2.5 Pre-category statements . 9
5.3 LC_IDENTIFICATION . 10
5.4 LC_CTYPE . 12
5.4.1 General . 12
5.4.2 Character classification keywords . 13
5.4.3 Character string transliteration . 17
5.4.4 "i18n" LC_CTYPE category. 17
5.5 LC_COLLATE . 42
5.5.1 General . 42
5.5.2 Collation statements . 44
5.5.3 "copy" keyword . 46
5.5.4 "coll_weight_max" keyword . 46
5.5.5 "section-symbol" keyword . 47
5.5.6 "collating-element" keyword . 47
5.5.7 "collating-symbol" keyword . 47
5.5.8 "symbol-equivalence" keyword . 48
5.5.9 "order_start" keyword . 48
5.5.10 "order_end" keyword . 49
5.5.11 "reorder-after" keyword . 49
5.5.12 "reorder-end" keyword . 50
5.5.13 "section" keyword . 50
5.5.14 "reorder-section-after" keyword . 51
5.6 LC_MONETARY . 53
5.7 LC_NUMERIC . 57
5.8 LC_TIME . 58
5.8.1 General . 58
iii
© ISO/IEC 2020 – All rights reserved
5.8.2 Date field descriptors . 62
5.8.3 Modified field descriptors . 63
5.8.4 "i18n" LC_TIME category . 64
5.9 LC_MESSAGES . 65
5.10 LC_XLITERATE . 65
5.10.1 General . 65
5.10.2 Transliteration statements . 66
5.10.3 "include" keyword . 67
5.10.4 Example of use of transliteration . 67
5.11 LC_NAME . 68
5.12 LC_ADDRESS . 69
5.13 LC_TELEPHONE . 72
5.14 LC_PAPER . 73
5.15 LC_MEASUREMENT . 73
5.16 LC_KEYBOARD . 74
6 CHARMAP . 74
6.1 General . 74
6.2 Character Set Description Text . 74
7 Repertoiremap . 79
8 Functionality . 117
8.1 General . 117
8.2 The “strpcoll” function . 117
8.3 The “setmedia” function. 118
8.4 String, encoding, repertoire and locale data types . 118
8.4.1 General . 118
8.4.2 String data type . 118
8.4.3 Encoding data type . 118
8.4.4 Repertoire data type . 121
8.4.5 Locale data type . 121
8.4.6 Character handling . 123
8.4.7 String comparison . 124
8.4.8 Message formatting . 125
8.4.9 Conversion between string and other data types . 127
8.4.10 Utilities . 131
9 Messages format .
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