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AIX Version 4.3 Differences Guide

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• Thai Cultural Conventions (Unicode)<br />

10.6.2.2 Standards Compliance of Thai Language Support<br />

The UTF-8 support for the Thai locale consists of the entire Base Multilingual<br />

Plane of ISO 10646. It complies with the following standards:<br />

• X/Open Portability <strong>Guide</strong>, issue 3 and issue 4<br />

• POSIX.2<br />

• X Window System <strong>Version</strong> 11 Release 5<br />

• Unicode <strong>Version</strong> 2.0 for display and fonts<br />

Note: The localization components for this locale will only support the Thai and<br />

ISO8859-1 characters.<br />

10.6.2.3 Application Binary Interface (ABI)<br />

The Thai locale, input method, and conversions comply with the <strong>AIX</strong> NLS<br />

subsystem loadable interfaces.<br />

10.6.2.4 Application Programming Interfaces (API)<br />

<strong>AIX</strong> Input Method defines the API that is used by other programs to support<br />

multi-byte input. The Thai input method complies with the <strong>AIX</strong> Input Method APIs.<br />

The Universal input method treats the Thai input method as another option in the<br />

list of input methods.<br />

10.6.3 Vietnamese Language Support<br />

Previous to <strong>AIX</strong> <strong>4.3</strong>, Vietnamese language support was based on a solution from<br />

IBM Vietnam. <strong>AIX</strong> <strong>Version</strong> <strong>4.3</strong> formally implements support for the Vietnamese<br />

language.<br />

The features implemented in <strong>AIX</strong> <strong>Version</strong> <strong>4.3</strong> include:<br />

Locale The Vietnamese locale is based on either IBM-1129 or Unicode<br />

<strong>Version</strong> 2. The wide character processing for UTF-8 Vietnamese<br />

locales is based on Unicode.<br />

Input method<br />

In Vietnam, it is not possible to assign each character to a key on the<br />

keyboard. The input method provides a character composing<br />

mechanism for the user. In other words, several key combinations<br />

can be used to build or compose a character. The Vietnamese input<br />

methods are based on IBM 461 A/B on a 101 key US keyboard where<br />

some of the Vietnamese and French characters are mapped to the<br />

first and second rows.<br />

cmdiconv<br />

New iconv converters are present for the following Vietnamese<br />

Language code sets:<br />

•IBM-1129<br />

•Unicode<br />

•EBCDIC Code (IBM-1130)<br />

•PC Code (IBM-1258, which is the same as Windows Code page)<br />

280 <strong>AIX</strong> <strong>Version</strong> <strong>4.3</strong> <strong>Differences</strong> <strong>Guide</strong>

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