Posts in Category "Unicode"

UTC #155

The next UTC (Unicode Technical Committee) meeting—the 155th one—takes place during the week of April 30th, and will be hosted at the Adobe headquarters in San José, California. Of course, all voting members of the Unicode Consortium are strongly encouraged to attend.
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CMap Resources & Character Collections

The CMap resources that are associated with our public glyph sets—called character collections—were first open-sourced on 2009-09-21 via Adobe’s first open source portal, and about a year later the project was moved to SourceForge. I then migrated the project to GitHub on 2015-03-27 where it is likely to remain for the foreseeable future. The main purpose for open-sourcing our CMap resources was to make it easier for developers to include them in their own open source projects, many of which require that the components themselves be open source.

I then open-sourced three of our four character collections on GitHub—Adobe-GB1-5, Adobe-CNS1-7, and Adobe-Japan1-6—in October of last year. The Adobe-Korea1-2 character collection was intentionally not open-sourced, because it will soon be replaced by the Adobe-KR-9 character collection that is expected to be published in mid-May.
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Adobe-KR-9 Fourth Draft

This article picks up where the 2018-01-18 article left off, and provides details about the fourth—and hopefully final—draft of the forthcoming Adobe-KR-9 character collection that was issued today.

The fourth draft of the Adobe-KR-9 character collection includes 22,860 glyphs (CIDs 0 through 22859) distributed among ten Supplements. When compared to the third draft, four glyphs were removed, only one glyph was added, a small number of glyphs were moved from Supplement 0 to later Supplements, and the ordering of Supplements 3 through 9 was changed. Because it is a draft, the details are still subject to change, though my hope is that this draft represents what will become the final character collection specification.
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Exploring IICore—Part 5

Part 1, Part 2, Part 3, and Part 4 of this series scrutinized the ideographs that are associated with each of the seven region tags of the kIICore property. In this fifth and final article of this series, I will provide some details about the earlier versions of IICore, and what changed between them.
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Exploring IICore—Part 4

In Part 1, Part 2, and Part 3 of this series, we examined and scrutinized the ideographs that are tagged “K” (for ROK or South Korea), “P” (for DPRK or North Korea), “J” (for Japan), and “G” (for PRC or China) in the kIICore property. In Part 4, which is today’s article, we will explore the ideographs that are tagged “T” (for ROC or Taiwan), “H” (for Hong Kong SAR), and “M” (for Macao SAR).
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Exploring IICore—Part 3

In Part 1 and Part 2 of this series, we examined and scrutinized the ideographs that are tagged “K” (for ROK or South Korea), “P” (for DPRK or North Korea), and “J” (for Japan) in the kIICore property. In Part 3, which is today’s article, we will explore the 5,825 ideographs that are tagged “G” (for PRC or China).
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Exploring IICore—Part 2

In Part 1 of this series, which is intended to scrutinize the 9,810 CJK Unified Ideographs that comprise IICore, we explored some of the oddities that related to ROK (aka South Korea). In Part 2 of this series, we will explore the ideographs that are tagged “P” and “J” for DPRK (aka North Korea) and Japan use, respectively.
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Exploring IICore—Part 1

Today’s article is the very first one that references IICore (International Ideographs Core), which is best described as a region-agnostic subset that includes the most commonly used CJK Unified Ideographs in Unicode, and is intended for use in memory-challenged devices and environments. Included are 9,810 ideographs, the bulk of which are in the URO (9,706), with the remaining ones in Extensions A (42) and B (62).

IICore is instantiated as the kIICore property of the Unihan Database, and documented in UAX #38. The kIICore property values consist of an initial letter—A, B, or C—that indicates priority, followed by one or more letters that specify a source that more or less corresponds to a region: G, H, J, K, M, P (short for KP), and T.
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Unihan & Moji Jōhō Kiban Project: The Tip of the Iceberg

As evidenced by the very last paragraph of IRG N1964 (aka L2/13-192), which was discussed during IRG #41 that took place in Tōkyō, Japan at the end of 2013, I have been curious as to why many ideographs that are commonly used in Japan lack a UAX #38 kIRG_JSource property value. As suggested by this recent tweet, I have been thinking about this again…
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Standardized Variation Sequences—Part 1

This is a brief article to report that the 16 SVSes (Standardized Variation Sequences) for eight full-width punctuation characters—U+3001 、 IDEOGRAPHIC COMMA, U+3002 。 IDEOGRAPHIC FULL STOP, U+FF01 ! FULLWIDTH EXCLAMATION MARK, U+FF0C , FULLWIDTH COMMA, U+FF0C , FULLWIDTH COMMA, U+FF1A : FULLWIDTH COLON, U+FF1B ; FULLWIDTH SEMICOLON & U+FF1F ? FULLWIDTH QUESTION MARK—that I proposed in L2/17-436 were accepted for Unicode Version 12.0 during UTC #154 this week. After reading the Script Ad Hoc group’s comments, I prepared a revised version (L2/17-436R) that provided additional information as a response to the two comments, which included the table that is shown above, and this served as the basis for the discussions.

This all began with a proposal that I submitted four years ago, L2/14-006, which was resurrected as L2/17-056, and finally discussed during UTC #153 during which I received constructive feedback. This prompted me to split the proposal into two parts. The first part proposed the less-controversial SVSes, which are the ones that were accepted. The second part, L2/18-013, proposes the more controversial ones. I am fully expecting to revise the second part before it is discussed during UTC #155, which begins on 2018-04-30.

I would like to use this opportunity to solicit comments and feedback for L2/18-013, which would be taken into account when I revise it. (I also hope to receive feedback from the Script Ad Hoc group prior to UTC #155, which would also be taken into account.)

In closing, the 16 new SVSes should soon appear in The Pipeline.

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