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diff --git a/lib/unicase.h b/lib/unicase.h
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-/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
-/* Unicode character case mappings.
- Copyright (C) 2002, 2009-2018 Free Software Foundation, Inc.
-
- This program is free software: you can redistribute it and/or
- modify it under the terms of either:
-
- * the GNU Lesser General Public License as published by the Free
- Software Foundation; either version 3 of the License, or (at your
- option) any later version.
-
- or
-
- * the GNU General Public License as published by the Free
- Software Foundation; either version 2 of the License, or (at your
- option) any later version.
-
- or both in parallel, as here.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with this program. If not, see <https://www.gnu.org/licenses/>. */
-
-#ifndef _UNICASE_H
-#define _UNICASE_H
-
-#include "unitypes.h"
-
-/* Get bool. */
-#include <unistring/stdbool.h>
-
-/* Get size_t. */
-#include <stddef.h>
-
-/* Get uninorm_t. */
-#include "uninorm.h"
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* ========================================================================= */
-
-/* Character case mappings.
- These mappings are locale and context independent.
- WARNING! These functions are not sufficient for languages such as German.
- Better use the functions below that treat an entire string at once and are
- language aware. */
-
-/* Return the uppercase mapping of a Unicode character. */
-extern ucs4_t
- uc_toupper (ucs4_t uc)
- _UC_ATTRIBUTE_CONST;
-
-/* Return the lowercase mapping of a Unicode character. */
-extern ucs4_t
- uc_tolower (ucs4_t uc)
- _UC_ATTRIBUTE_CONST;
-
-/* Return the titlecase mapping of a Unicode character. */
-extern ucs4_t
- uc_totitle (ucs4_t uc)
- _UC_ATTRIBUTE_CONST;
-
-/* ========================================================================= */
-
-/* String case mappings. */
-
-/* These functions are locale dependent. The iso639_language argument
- identifies the language (e.g. "tr" for Turkish). NULL means to use
- locale independent case mappings. */
-
-/* Return the ISO 639 language code of the current locale.
- Return "" if it is unknown, or in the "C" locale. */
-extern const char *
- uc_locale_language (void)
- _UC_ATTRIBUTE_PURE;
-
-/* Conventions:
-
- All functions prefixed with u8_ operate on UTF-8 encoded strings.
- Their unit is an uint8_t (1 byte).
-
- All functions prefixed with u16_ operate on UTF-16 encoded strings.
- Their unit is an uint16_t (a 2-byte word).
-
- All functions prefixed with u32_ operate on UCS-4 encoded strings.
- Their unit is an uint32_t (a 4-byte word).
-
- All argument pairs (s, n) denote a Unicode string s[0..n-1] with exactly
- n units.
-
- Functions returning a string result take a (resultbuf, lengthp) argument
- pair. If resultbuf is not NULL and the result fits into *lengthp units,
- it is put in resultbuf, and resultbuf is returned. Otherwise, a freshly
- allocated string is returned. In both cases, *lengthp is set to the
- length (number of units) of the returned string. In case of error,
- NULL is returned and errno is set. */
-
-/* Return the uppercase mapping of a string.
- The nf argument identifies the normalization form to apply after the
- case-mapping. It can also be NULL, for no normalization. */
-extern uint8_t *
- u8_toupper (const uint8_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
-extern uint16_t *
- u16_toupper (const uint16_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
-extern uint32_t *
- u32_toupper (const uint32_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
-
-/* Return the lowercase mapping of a string.
- The nf argument identifies the normalization form to apply after the
- case-mapping. It can also be NULL, for no normalization. */
-extern uint8_t *
- u8_tolower (const uint8_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
-extern uint16_t *
- u16_tolower (const uint16_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
-extern uint32_t *
- u32_tolower (const uint32_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
-
-/* Return the titlecase mapping of a string.
- The nf argument identifies the normalization form to apply after the
- case-mapping. It can also be NULL, for no normalization. */
-extern uint8_t *
- u8_totitle (const uint8_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
-extern uint16_t *
- u16_totitle (const uint16_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
-extern uint32_t *
- u32_totitle (const uint32_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
-
-/* The case-mapping context given by a prefix string. */
-typedef struct casing_prefix_context
- {
- /* These fields are private, undocumented. */
- uint32_t last_char_except_ignorable;
- uint32_t last_char_normal_or_above;
- }
- casing_prefix_context_t;
-/* The case-mapping context of the empty prefix string. */
-extern LIBUNISTRING_DLL_VARIABLE const casing_prefix_context_t unicase_empty_prefix_context;
-/* Return the case-mapping context of a given prefix string. */
-extern casing_prefix_context_t
- u8_casing_prefix_context (const uint8_t *s, size_t n);
-extern casing_prefix_context_t
- u16_casing_prefix_context (const uint16_t *s, size_t n);
-extern casing_prefix_context_t
- u32_casing_prefix_context (const uint32_t *s, size_t n);
-/* Return the case-mapping context of the prefix concat(A, S), given the
- case-mapping context of the prefix A. */
-extern casing_prefix_context_t
- u8_casing_prefixes_context (const uint8_t *s, size_t n,
- casing_prefix_context_t a_context);
-extern casing_prefix_context_t
- u16_casing_prefixes_context (const uint16_t *s, size_t n,
- casing_prefix_context_t a_context);
-extern casing_prefix_context_t
- u32_casing_prefixes_context (const uint32_t *s, size_t n,
- casing_prefix_context_t a_context);
-
-/* The case-mapping context given by a suffix string. */
-typedef struct casing_suffix_context
- {
- /* These fields are private, undocumented. */
- uint32_t first_char_except_ignorable;
- uint32_t bits;
- }
- casing_suffix_context_t;
-/* The case-mapping context of the empty suffix string. */
-extern LIBUNISTRING_DLL_VARIABLE const casing_suffix_context_t unicase_empty_suffix_context;
-/* Return the case-mapping context of a given suffix string. */
-extern casing_suffix_context_t
- u8_casing_suffix_context (const uint8_t *s, size_t n);
-extern casing_suffix_context_t
- u16_casing_suffix_context (const uint16_t *s, size_t n);
-extern casing_suffix_context_t
- u32_casing_suffix_context (const uint32_t *s, size_t n);
-/* Return the case-mapping context of the suffix concat(S, A), given the
- case-mapping context of the suffix A. */
-extern casing_suffix_context_t
- u8_casing_suffixes_context (const uint8_t *s, size_t n,
- casing_suffix_context_t a_context);
-extern casing_suffix_context_t
- u16_casing_suffixes_context (const uint16_t *s, size_t n,
- casing_suffix_context_t a_context);
-extern casing_suffix_context_t
- u32_casing_suffixes_context (const uint32_t *s, size_t n,
- casing_suffix_context_t a_context);
-
-/* Return the uppercase mapping of a string that is surrounded by a prefix
- and a suffix. */
-extern uint8_t *
- u8_ct_toupper (const uint8_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
-extern uint16_t *
- u16_ct_toupper (const uint16_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
-extern uint32_t *
- u32_ct_toupper (const uint32_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
-
-/* Return the lowercase mapping of a string that is surrounded by a prefix
- and a suffix. */
-extern uint8_t *
- u8_ct_tolower (const uint8_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
-extern uint16_t *
- u16_ct_tolower (const uint16_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
-extern uint32_t *
- u32_ct_tolower (const uint32_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
-
-/* Return the titlecase mapping of a string that is surrounded by a prefix
- and a suffix. */
-extern uint8_t *
- u8_ct_totitle (const uint8_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
-extern uint16_t *
- u16_ct_totitle (const uint16_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
-extern uint32_t *
- u32_ct_totitle (const uint32_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
-
-/* Return the case folded string.
- Comparing uN_casefold (S1) and uN_casefold (S2) with uN_cmp2() is equivalent
- to comparing S1 and S2 with uN_casecmp().
- The nf argument identifies the normalization form to apply after the
- case-mapping. It can also be NULL, for no normalization. */
-extern uint8_t *
- u8_casefold (const uint8_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
-extern uint16_t *
- u16_casefold (const uint16_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
-extern uint32_t *
- u32_casefold (const uint32_t *s, size_t n, const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
-/* Likewise, for a string that is surrounded by a prefix and a suffix. */
-extern uint8_t *
- u8_ct_casefold (const uint8_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint8_t *resultbuf, size_t *lengthp);
-extern uint16_t *
- u16_ct_casefold (const uint16_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint16_t *resultbuf, size_t *lengthp);
-extern uint32_t *
- u32_ct_casefold (const uint32_t *s, size_t n,
- casing_prefix_context_t prefix_context,
- casing_suffix_context_t suffix_context,
- const char *iso639_language,
- uninorm_t nf,
- uint32_t *resultbuf, size_t *lengthp);
-
-/* Compare S1 and S2, ignoring differences in case and normalization.
- The nf argument identifies the normalization form to apply after the
- case-mapping. It can also be NULL, for no normalization.
- If successful, set *RESULTP to -1 if S1 < S2, 0 if S1 = S2, 1 if S1 > S2, and
- return 0. Upon failure, return -1 with errno set. */
-extern int
- u8_casecmp (const uint8_t *s1, size_t n1,
- const uint8_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
-extern int
- u16_casecmp (const uint16_t *s1, size_t n1,
- const uint16_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
-extern int
- u32_casecmp (const uint32_t *s1, size_t n1,
- const uint32_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
-extern int
- ulc_casecmp (const char *s1, size_t n1,
- const char *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
-
-/* Convert the string S of length N to a NUL-terminated byte sequence, in such
- a way that comparing uN_casexfrm (S1) and uN_casexfrm (S2) with the gnulib
- function memcmp2() is equivalent to comparing S1 and S2 with uN_casecoll().
- NF must be either UNINORM_NFC, UNINORM_NFKC, or NULL for no normalization. */
-extern char *
- u8_casexfrm (const uint8_t *s, size_t n, const char *iso639_language,
- uninorm_t nf, char *resultbuf, size_t *lengthp);
-extern char *
- u16_casexfrm (const uint16_t *s, size_t n, const char *iso639_language,
- uninorm_t nf, char *resultbuf, size_t *lengthp);
-extern char *
- u32_casexfrm (const uint32_t *s, size_t n, const char *iso639_language,
- uninorm_t nf, char *resultbuf, size_t *lengthp);
-extern char *
- ulc_casexfrm (const char *s, size_t n, const char *iso639_language,
- uninorm_t nf, char *resultbuf, size_t *lengthp);
-
-/* Compare S1 and S2, ignoring differences in case and normalization, using the
- collation rules of the current locale.
- The nf argument identifies the normalization form to apply after the
- case-mapping. It must be either UNINORM_NFC or UNINORM_NFKC. It can also
- be NULL, for no normalization.
- If successful, set *RESULTP to -1 if S1 < S2, 0 if S1 = S2, 1 if S1 > S2, and
- return 0. Upon failure, return -1 with errno set. */
-extern int
- u8_casecoll (const uint8_t *s1, size_t n1,
- const uint8_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
-extern int
- u16_casecoll (const uint16_t *s1, size_t n1,
- const uint16_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
-extern int
- u32_casecoll (const uint32_t *s1, size_t n1,
- const uint32_t *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
-extern int
- ulc_casecoll (const char *s1, size_t n1,
- const char *s2, size_t n2,
- const char *iso639_language, uninorm_t nf, int *resultp);
-
-
-/* Set *RESULTP to true if mapping NFD(S) to upper case is a no-op, or to false
- otherwise, and return 0. Upon failure, return -1 with errno set. */
-extern int
- u8_is_uppercase (const uint8_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-extern int
- u16_is_uppercase (const uint16_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-extern int
- u32_is_uppercase (const uint32_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-
-/* Set *RESULTP to true if mapping NFD(S) to lower case is a no-op, or to false
- otherwise, and return 0. Upon failure, return -1 with errno set. */
-extern int
- u8_is_lowercase (const uint8_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-extern int
- u16_is_lowercase (const uint16_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-extern int
- u32_is_lowercase (const uint32_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-
-/* Set *RESULTP to true if mapping NFD(S) to title case is a no-op, or to false
- otherwise, and return 0. Upon failure, return -1 with errno set. */
-extern int
- u8_is_titlecase (const uint8_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-extern int
- u16_is_titlecase (const uint16_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-extern int
- u32_is_titlecase (const uint32_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-
-/* Set *RESULTP to true if applying case folding to NFD(S) is a no-op, or to
- false otherwise, and return 0. Upon failure, return -1 with errno set. */
-extern int
- u8_is_casefolded (const uint8_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-extern int
- u16_is_casefolded (const uint16_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-extern int
- u32_is_casefolded (const uint32_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-
-/* Set *RESULTP to true if case matters for S, that is, if mapping NFD(S) to
- either upper case or lower case or title case is not a no-op.
- Set *RESULTP to false if NFD(S) maps to itself under the upper case mapping,
- under the lower case mapping, and under the title case mapping; in other
- words, when NFD(S) consists entirely of caseless characters.
- Upon failure, return -1 with errno set. */
-extern int
- u8_is_cased (const uint8_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-extern int
- u16_is_cased (const uint16_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-extern int
- u32_is_cased (const uint32_t *s, size_t n,
- const char *iso639_language,
- bool *resultp);
-
-
-/* ========================================================================= */
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _UNICASE_H */