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We currently have several sets of files generated from data provided by Unicode. These all have ad hoc rules and instructions for updating when new Unicode versions appear, and it's not done consistently. This patch centralizes and automates the process and makes it part of the release checklist. The Unicode and CLDR versions are specified in Makefile.global.in. There is a new make target "update-unicode" that downloads all the relevant files and runs the generation script. There is also a new script for generating the table of combining characters for ucs_wcwidth(). That table is now in a separate include file rather than hardcoded into the middle of other code. This is based on the script that was used for generating d8594d123c155aeecd47fc2450f62f5100b2fbf0, but the script itself wasn't committed at that time. Reviewed-by: John Naylor <john.naylor@2ndquadrant.com> Discussion: https://www.postgresql.org/message-id/flat/c8d05f42-443e-6c23-819b-05b31759a37c@2ndquadrant.com
29 lines
949 B
Plaintext
29 lines
949 B
Plaintext
This directory contains tools to generate the tables in
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src/include/common/unicode_norm.h, used for Unicode normalization. The
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generated .h file is included in the source tree, so these are normally not
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needed to build PostgreSQL, only if you need to re-generate the .h file
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from the Unicode data files for some reason, e.g. to update to a new version
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of Unicode.
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Generating unicode_norm_table.h
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-------------------------------
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Run
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make update-unicode
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from the top level of the source tree and commit the result.
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Tests
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-----
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The Unicode consortium publishes a comprehensive test suite for the
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normalization algorithm, in a file called NormalizationTest.txt. This
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directory also contains a perl script and some C code, to run our
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normalization code with all the test strings in NormalizationTest.txt.
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To download NormalizationTest.txt and run the tests:
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make normalization-check
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This is also run as part of the update-unicode target.
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