The UTC #160 meeting took place last week at Microsoft’s HQ in Redmond, Washington.
For CJK enthusiasts, the big news is that the UTC accepted CJK Unified ideographs Extension G (aka IRG Working Set 2015), which includes 4,939 characters. Additional CJK Unified Ideographs were appended to the URO (13), Extension A (10), and Extension B (7). As a result, the Extension A block will be completely full, and the URO and Extension B blocks will be nearly full. The total number of CJK Unified Ideographs in Unicode Version 13.0 is expected to be 92,856, which will represent approximately 65% of its characters.
The Pipeline accurately reflects the additional CJK Unified Ideographs that are targeted for Unicode Version 13.0. I suspect that the image at the beginning of this article will be helpful, and when clicked, will provide a PDF version that also includes a table for CJK Compatibility Ideographs.
These additions reflect two issues about which developers need to be aware:
- Plane 3 (aka TIP or Tertiary Ideographic Plane) is now open for business, and Extension G represents the first block encoded among its 65,534 available code points.
- This is the first time that CJK Unified Ideographs have been appended to a block other than the URO.
English (英語) here
（翻訳：Adobe Type チーム 山本太郎）
For Adobe-Japan1–based OpenType/CFF Japanese fonts that support the glyph or glyphs for U+32FF ㋿ SQUARE ERA NAME REIWA (Unicode Version 12.1), meaning Adobe-Japan1-7 CID+23058 or CIDs 23058 and 23059, font developers need to be aware that adjustments to a small number of GSUB (Glyph SUBstitution) features are necessary to make them more easily accessible or simply usable.
日本語 (Japanese) はこちら
I recently came up with a Variable Font model to handle glyph compression and expansion in horizontal and vertical layout that includes support for characters whose glyphs rotate in vertical layout, such as the glyphs for Western characters, along with TCY (縦中横 tatechūyoko in Japanese, which literally means “horizontal in vertical”) support.
The purpose of this article is to call attention to the open source test font that I developed, along with a description of the model itself, which are intended to be used by developers to implement such support in apps and layout engines.