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Support Unicode full case mapping and conversion.

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Generate tables from Unicode SpecialCasing.txt to support more
sophisticated case mapping behavior:

 * support case mappings to multiple codepoints, such as "ß"
   uppercasing to "SS"
 * support conditional case mappings, such as the "final sigma"
 * support titlecase variants, such as "dž" uppercasing to "DŽ" but
   titlecasing to "Dž"

Discussion: https://postgr.es/m/ddfd67928818f138f51635712529bc5e1d25e4e7.camel@j-davis.com
Discussion: https://postgr.es/m/27bb0e52-801d-4f73-a0a4-02cfdd4a9ada@eisentraut.org
Reviewed-by: Peter Eisentraut, Daniel Verite
This commit is contained in:
Jeff Davis
2025-01-17 15:56:20 -08:00
parent 6a9b2a631a
commit 286a365b9c
9 changed files with 3645 additions and 2993 deletions
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1
src/tools/pgindent/typedefs.list
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@@ -3754,6 +3754,7 @@ pg_sha256_ctx
pg_sha384_ctx
pg_sha512_ctx
pg_snapshot
pg_special_case
pg_stack_base_t
pg_time_t
pg_time_usec_t