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46e5441fa5
This brings the titlecasing implementation for the builtin provider out of formatting.c and into unicode_case.c, along with unicode_strlower() and unicode_strupper(). Accepts an arbitrary word boundary callback. Simple for now, but can be extended to support the Unicode Default Case Conversion algorithm with full case mapping. Discussion: https://postgr.es/m/3bc653b5d562ae9e2838b11cb696816c328a489a.camel@j-davis.com Reviewed-by: Peter Eisentraut
33 lines
1.0 KiB
C
33 lines
1.0 KiB
C
/*-------------------------------------------------------------------------
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*
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* unicode_case.h
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* Routines for converting character case.
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*
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* These definitions can be used by both frontend and backend code.
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*
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* Copyright (c) 2017-2023, PostgreSQL Global Development Group
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*
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* src/include/common/unicode_case.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef UNICODE_CASE_H
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#define UNICODE_CASE_H
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#include "mb/pg_wchar.h"
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typedef size_t (*WordBoundaryNext) (void *wbstate);
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pg_wchar unicode_lowercase_simple(pg_wchar ucs);
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pg_wchar unicode_titlecase_simple(pg_wchar ucs);
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pg_wchar unicode_uppercase_simple(pg_wchar ucs);
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size_t unicode_strlower(char *dst, size_t dstsize, const char *src,
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ssize_t srclen);
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size_t unicode_strtitle(char *dst, size_t dstsize, const char *src,
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ssize_t srclen, WordBoundaryNext wbnext,
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void *wbstate);
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size_t unicode_strupper(char *dst, size_t dstsize, const char *src,
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ssize_t srclen);
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#endif /* UNICODE_CASE_H */
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