Archive for September, 2017

Internationalization & Unicode Conferences

I have attended every Internationalization & Unicode Conference (IUC) since IUC31 in 2007, and Adobe has been a continuous Gold Sponsor since IUC31. Unfortunately, duty calls, in the form of attending and hosting IRG #49 that takes place during the same week as IUC41, which means that I can neither attend nor present this year. Of course, Adobe continues to be a Gold Sponsor of this important event.
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“Houston, we have a problem… …with U+2F9B2”

U+2F9B2 䕫 is a CJK Compatibility Ideograph, and like all CJK Compatibility Ideographs, it canonically decomposes to a CJK Unified Ideograph, and also has a Standardized Variation Sequence (SVS) that uses its canonical equivalent as its base character. This character also has a single source reference, H-8FA8, which corresponds to HKSCS (Hong Kong Supplementary Character Set) 0x8FA8.

So, what’s the problem? Put simply, its canonical equivalent, U+456B , is neither in HKSCS nor in its Big Five subset:

If this character is ever normalized—regardless of the normalization form—it is converted to its canonical equivalent, U+456B , which is not likely to be included in fonts that are designed for use in Hong Kong SAR. Furthermore, even if its SVS, <U+456B,U+FE00>, is used, there is a similar problem in that its base character is also not likely to be present in fonts that are designed for use in Hong Kong SAR.
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