Category: w3cWebUserAgents

Version 5.2 of the Unicode Collation Algorithm has been released. This version resynchronizes the Unicode Collation Algorithm with all of the updates for the Unicode Standard, Version 5.2.

The rest of this post is taken from the Unicode Consortium's release notification and details changes and issues for implementations.

• The text of UTS #10 has been updated. Among other changes, the revised text for UTS #10 makes it clear that the BASE for implicit generation of weights for Han characters does not include unassigned code points.
• There are small changes in Gujarati, Telugu, Malayalam (including weighting for chillus), Tamil, and Sinhala. While these changes move in the direction of expected behavior, good results will only come from tailoring for particular languages, such as with CLDR.
• There have been significant changes to the ordering of many combining marks. Many combining marks that are not in customary use in modern languages now have the same secondary weight, and will only be distinguished on a fourth level, by code point ordering. This can be seen by looking at the Unicode Collation Charts (http://unicode.org/charts/collation/). In 5.2, many characters now have a white background, indicating that they sort exactly the same as the previous character, unless a 4th (codepoint) level is used.
• Implementations of UCA should take note that the increased number of characters may cause overflows if the implementing code makes certain assumptions or optimizations. This can result either from the new character additions (which increase the number of distinct weights in the table) or because of changes in the way the weights, particularly for secondary weight values, are assigned in the table. The latter change may result in unexpected numbers of characters having the same weight.

Comments are being sought on this article prior to final release. Please send any comments to www-international@w3.org (subscribe). We expect to publish a final version in one to two weeks. [search keys: qa-choosing-language-tags]

This tutorial was updated to incorporate changes made to BCP 47 by the recent publication of RFC 5646. Changes to BCP 47 include the introduction of extended language subtags, and the addition of ISO 639-3 language subtags, bringing the total number of subtags in the registry to almost 8,000.

Translators should consider retranslating the whole tutorial. [search keys: article-language-tags]

On 1st October, Unicode 5.2 was released! The data files, code charts, and Unicode Standard Annexes for this version are final and are posted on the Unicode site.

For Unicode 5.2, the core specification is no longer just a delta document applied to the book; instead, the entire core specification,with all textual changes integrated, will be available on the Unicode site. As of this announcement, the first five chapters are available; the other chapters will follow soon

For full details about what is new or changed in this release, see the version documentation for Unicode 5.2.

Thanks to the Spanish Translation Team, Spanish Translation US, the following articles have been translated into Spanish.

Codificación de caracteres para principiantes (Character encodings for beginners)
Configuración de codificaciones en aplicaciones de autoría web (Setting encoding in web authoring applications)

[search keys: qa-what-is-encoding qa-setting-encoding-in-applications]

The IETF has published RFC 5646, an update of Tags for Identifying Languages. This specification obsoletes former RFCs 4646, 3066 and 1766.

RFC 5646 makes it possible to use over 7,000 three-letter ISO 639-3 language codes, in addition to the 2 letter codes that have been in use for some time. It also introduces 220 'extended language' subtags, mainly for backwards compatibility.

It continues to be best to refer to this specification as BCP47. This is a non-changing name and web address that points to the latest relevant RFCs.

The Internationalization Working Group at the W3C is working on an article to help users choose language tags, given the various types of subtag that are now available, and the sheer number of subtags.

You can look up language and other subtags in the IANA Language Subtag Registry.

Thanks to K. Wiśniewski the Getting Started article "Language on the Web" has now been updated in Polish. [search key: gs-language]

Język witryn internetowych

Comments are being sought on this article prior to final release. Please send any comments to www-international@w3.org (subscribe). We expect to publish a final version in one to two weeks. [search keys: qa-bidi-unicode-controls]

This article was updated to add and remove browser information and correct some text. For a detailed list of changes read the full post.

Translators should consider retranslating the whole article. [search keys: qa-lang-priorities]

Read More…

These tests check whether and how a user agent displays list numbering when the value of the CSS list-style-type property is set to armenian, lower-armenian and upper-armenian.

A number of errors in the tests were corrected and the results page was rewritten to reflect the changes and results for latest versions of major browsers. [search keys: test-list-style-type  results-list-style-type]