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October 2023

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[ruby-core:114933] [Ruby master Bug#10416] Create mechanism for updating of Unicode data files downstreams when we want
by nobu (Nobuyoshi Nakada) 01 Oct '23

01 Oct '23

Issue #10416 has been updated by nobu (Nobuyoshi Nakada). The current enc-unicode.rb seems to fail because of `Indic_Conjunct_break` properties with values. I'm not sure how these properties should be handled well. `/\p{InCB_Liner}/` or `/\p{InCB=Liner}/` as the comments in that file? https://github.com/nobu/ruby/tree/unicode-15.1 is the former. ---------------------------------------- Bug #10416: Create mechanism for updating of Unicode data files downstreams when we want https://bugs.ruby-lang.org/issues/10416#change-104804 * Author: duerst (Martin Dürst) * Status: Open * Priority: Normal * Assignee: nobu (Nobuyoshi Nakada) * ruby -v: ruby 2.2.0dev (2014-10-22 trunk 48092) [x86_64-cygwin] * Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN ---------------------------------------- The current mechanism for updating Unicode data files will create the following problem: Downstream compilers/packagers will download Unicode data files ONE time (they may already have done so). However, if they don't activate ALWAYS_UPDATE_UNICODE = yes, these files will never get updated, and they will stay on Unicode version 7.0 even if in five years Unicode is e.g. on version 12.0. On the other hand, if they activate ALWAYS_UPDATE_UNICODE = yes (and assuming issue #10415 gets fixed), they constantly update to the latest version of Unicode. That's good for those who actually want this, but now what our current policy is. What's missing is that we (Ruby core) can make sure downstream checkouts update to a new Unicode version when we want then to do so (as we e.g. can do for other parts that are based on Unicode data, see e.g. https://bugs.ruby-lang.org/issues/9092) without sending an email to everybody and hoping they read and follow it. [Currently, the only solution I know will work is the one pointed out by Yui Naruse in https://bugs.ruby-lang.org/issues/10084#note-17, but I'm okay with any other solution.] -- https://bugs.ruby-lang.org/

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