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Bopomofo -> Limited_Use #1129

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Bopomofo -> Limited_Use #1129

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josh-hadley
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@josh-hadley josh-hadley commented May 6, 2025

[UTC-183-C37] Consensus: Change Bopomofo to "Limited Use" in UAX #31. For Unicode Version 17.0. See L2/25-087 item 5.5.
[UTC-183-A79] Action Item for Josh Hadley, PAG: Update Identifier_Status and Identifier_Type properties according to the change of status of Bopomofo to “Limited Use”. For Unicode Version 17.0. See L2/25-087 item 5.5.

Change Bopomofo to "Limited Use" in UAX #31. For Unicode Version 17.0. See L2/25-087 item 5.5.
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@asmusf First pass at this just assigning Bopomofo as Limited_Use resulted in a couple of double assignments from previous updates. Are these OK per the consensus? If not I think I can use override to force them to Limited_Use only.

312E ; Limited_Use Obsolete # 10.0 BOPOMOFO LETTER O WITH DOT ABOVE
02EA..02EB ; Limited_Use Not_XID # 3.0 [2] MODIFIER LETTER YIN DEPARTING TONE MARK..MODIFIER LETTER YANG DEPARTING TONE MARK

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asmusf commented May 6, 2025

Hmmm. Not maintaining info on "obsolete" for "limited_use" scripts is acceptable, though discarding any vetted information is always regrettable, but I get that we may not want the burden of maintaining a consistent analysis. (While this means we inadvertently force people who want to support a limited_use script to start from scratch, we can survive this one for now).

However, the Not_XID seems something that is "stronger" than "limited_use". It seems quite wrong to have that information "hidden", because we do want people to be able to add Limited_Use scripts to their own identifiers and that should not force them to recreated everything.

However, again, this data is discoverable, and we can sit down and have a discussion on whether Not_XID should be handled differently. For now, let's just match all other limited_use scripts.

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