oSIST ISO/DIS 20674-1:2019

SLOVENSKI STANDARD
oSIST ISO/DIS 20674-1:2019
01-oktober-2019

Informatika in dokumentacija – Transliteracija pisav, ki so v uporabi v Tajski - 1.

Information and documentation -- Transliteration of scripts in use in Thailand -- Part 1:

Information et documentation -- Translittération des scripts utilisés en Thaïlande -- Partie

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

Information et documentation — Translittération des scripts utilisés en Thaïlande —

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

Foreword ................................................................................................................................................................. iv

Introduction ............................................................................................................................................................. v

1 Scope ............................................................................................................................................................ 1

2 Normative references .............................................................................................................................. 1

3 Terms and definitions ............................................................................................................................. 1

4 Arrangement of character sequence ................................................................................................... 7

5 Typing sequence ....................................................................................................................................... 8

6 Romanization table ................................................................................................................................. 8

Annex A (normative) - Principles of conversion. ................................................................................ 15

Annex B (informative) - Akson-Thai-Noi ............................................................................................... 18

Bibliography .......................................................................................................................................................... 19

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The committee responsible for this document is Technical Committee ISO/TC 46, Information and

The transliteration system presented here describes the orthographic system of the Akson -Thai-Noi

script using Romanized characters consistent with the provisions of the International Standards

The Akson-Thai-Noi characters of this standard were developed as modern representations of scripts

found in inscriptions and palm leaf religious texts and adapted by the Royal Institute of Thailand .

The selection of Romanized characters follows, to the extent possible, the phonemic/phonetic

representations used in the transliteration of Standard Thai as described in the International Standard

In this system transliteration principles are applied stringently to enable complete unambiguous

reversibility in the conversion of characters. Although accurate pronunciation may not always result in

the application of this system, because the original Akson-Thai-Noi characters can be regenerated

automatically from the Romanized representation, those with knowledge of the languages will be able

The following standard contains provisions which, through reference in this text, constitute provisions

of this International Standard. At the time of publication, the edition indicated was valid. All standards

are subject to revision, and parties to agreements based on this International Standard are encouraged

to investigate the possibility of applying the most recent edition of the standard indicated below.

Members of IEC and ISO maintain registers of currently valid International Standards.

ISO/IEC 10646:2014(E), Information Technology — Universal Coded Character Set (UCS) — Structure

Definitions, explanations for terms used (transliteration, transcription, etc.) appear in Annex A.

The “Royal Institute of Thailand ”underwent a name change to the “Royal Society of Thailand ”in accordance

3.2.1.1.2 Bound Graphemes (eight full form characters, two special forms, and five graphemes

3.2.1.1.2.1 Bound Graphemes, or digraphs, are formed from two simple characters bound together

with a full stop (002E) as a single form. When dealing with joined characters like “O h̄.n”, the input

Akson-Tham-Isan is a set of characters used in the northeastern region of Thailand suitable for writing Pali-Sanskrit

3.2.1.1.2.2 A special form consonant grapheme is comprised of two allographs, neither of which

PPPP / x′y/ (called yo yat nam); e.g., PPPPkkkk@@@@ooooeeee /x′yādnå/ (to offer up in merit).

3.2.1.1.2.3 In some cases, five Lao and Akson-Thai-Tham characters may be referenced to, i.e.:

There are twenty-five vowel graphemes in Akson -Thai-Noi, representing twenty vowel sounds .One

vowel, /əɪ/, exhibits four different graphemes (marked with an * in the table below).

-used in the vowel dipthong g -yp /e-ạy/ when there is no final consonant; e.g.,

N -used to shorten the vowel F /o/ preceding a final consonant; e.g., 8No /ka′n/

-used in conjunction with the vowel symbol - ; /w/; e.g., dN; /ka′w/ (comparative

Y -used as the vowel –vvvv /°/ without a final consonant; e.g., rY /ph/ (enough, father),

Refers to four symbols that differentiate one Roman character representing the same sound converted

Initial and final consonant characters in an Akson-Thai-Noi syllable are placed on the same line,

with the vowel character placed in a position preceding, following, above or below the initial

Preceding the accompanying consonant: cM /æm/ (mother), cd /æk/ (old), c9 /æt/ (but)

4.2 A consonant can have either an upper level or a lower level character; the sequence of the

4.2.3 A consonant with an upper level character and a lower level character, e.g.

4.2.4 According to the ICU implementation (recorded in Version 1.4.1 of the common Local Data

Repository sponsored by Unicode) preposed vowels are transposed with the following consonant,

This process, however, may be done by a computer program. Since there are no consonant clusters

If a Roman character contains a combining diacritical mark, type the character before the mark:

If a Roman character contains a combining diacritical mark or marks, type the character first, then

The Romanization Table displays both Akson-Thai-Noi and Standard Thai characters. Note that the

same characters with different fonts share the same codes. Twenty seven Standard Thai characters

are not used in Akson-Thai-Noi and twenty characters used only in Akson-Thai-Noi.

The new table unifies the transliteration of Akson-Thai-Noi with that of Standard Thai.