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/*-------------------------------------------------------------------------
*
* unicode_norm.h
* Routines for normalizing Unicode strings
*
* These definitions are used by both frontend and backend code.
*
* Copyright (c) 2017-2025, PostgreSQL Global Development Group
*
* src/include/common/unicode_norm.h
*
*-------------------------------------------------------------------------
*/
#ifndef UNICODE_NORM_H
#define UNICODE_NORM_H
typedef enum
{
UNICODE_NFC = 0,
UNICODE_NFD = 1,
UNICODE_NFKC = 2,
UNICODE_NFKD = 3,
} UnicodeNormalizationForm;
/* see UAX #15 */
typedef enum
{
UNICODE_NORM_QC_NO = 0,
UNICODE_NORM_QC_YES = 1,
UNICODE_NORM_QC_MAYBE = -1,
} UnicodeNormalizationQC;
extern char32_t *unicode_normalize(UnicodeNormalizationForm form, const char32_t *input);
extern UnicodeNormalizationQC unicode_is_normalized_quickcheck(UnicodeNormalizationForm form, const char32_t *input);
#endif /* UNICODE_NORM_H */
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