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Unicode 15.0.0 was updated from:
- https://www.unicode.org/Public/15.0.0/ucd/
- https://www.unicode.org/Public/15.0.0/ucd/auxiliary/
- https://www.unicode.org/Public/15.0.0/ucd/emoji/
When updating the Unicode version please follow these steps:
The latest vesrion of the Unicode Character Database can be found at
https://www.unicode.org/Public/UCD/latest/ucd/
1. Copy the following files to lib/stdlib/uc_spec/ replacing existing ones.
No subfolder should be created.
- CaseFolding.txt
- CompositionExclusions.txt
- PropList.txt
- SpecialCasing.txt
- UnicodeData.txt
- auxiliary/GraphemeBreakProperty.txt
- emoji/emoji-data.txt
- EastAsianWidth.txt
2. Copy the following test files to lib/stdlib/test/unicode_util_SUITE_data/
replacing existing ones. No subfolder should be created.
- NormalizationTest.txt
- auxiliary/GraphemeBreakTest.txt
- auxiliary/LineBreakTest.txt
3. Update the "spec_version()" function in the generator by replacing the Unicode
version in lib/stdlib/uc_spec/gen_unicode_mod.escript
4. Read the release notes by visiting https://www.unicode.org/versions/latest/
and assess if additional changes are necessary in the Erlang code.
5. Replace all ocurrences of previous version of Unicode with the new one in
this very same file (lib/stdlib/uc_spec/README-UPDATE.txt).
Remember to update these instructions if a new file is added or any other change
is required for future version updates.
6. Check if the test file needs to be updated:
(cd $ERL_TOP/lib/stdlib/uc_spec; escript gen_unicode_mod.escript update_tests)
If ../test/unicode_util_SUITE_data/unicode_table.bin is updated include it in
the commit.
7. Run the test for the Unicode suite from the OTP repository root dir.
$ export ERL_TOP=$PWD
$ export PATH=$ERL_TOP/bin:$PATH
$ ./otp_build all -a && ./otp_build tests
$ cd release/tests/test_server
$ erl
erl> ts:install().
erl> ts:run(stdlib, unicode_SUITE, [batch]).
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