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authorJörg Frings-Fürst <debian@jff.email>2022-01-08 11:51:07 +0100
committerJörg Frings-Fürst <debian@jff.email>2022-01-08 11:51:07 +0100
commitbe8efac78d067c138ad8dda03df4336e73f94887 (patch)
tree5f5254a628ba0ef72065b93d949d1c985742ea8e /lib/unistr.h
parent7b65dbd4ebade81d504cfe5e681292a58ad1fdf0 (diff)
New upstream version 1.0upstream/1.0
Diffstat (limited to 'lib/unistr.h')
-rw-r--r--lib/unistr.h759
1 files changed, 0 insertions, 759 deletions
diff --git a/lib/unistr.h b/lib/unistr.h
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index 564a13a3..00000000
--- a/lib/unistr.h
+++ /dev/null
@@ -1,759 +0,0 @@
-/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
-/* Elementary Unicode string functions.
- Copyright (C) 2001-2002, 2005-2018 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 _UNISTR_H
-#define _UNISTR_H
-
-#include "unitypes.h"
-
-/* Get common macros for C. */
-#include <unistring/cdefs.h>
-
-/* Get inline if available. */
-#include <unistring/inline.h>
-
-/* Get bool. */
-#include <unistring/stdbool.h>
-
-/* Get size_t. */
-#include <stddef.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-
-/* 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.
-
- All arguments starting with "str" and the arguments of functions starting
- with u8_str/u16_str/u32_str denote a NUL terminated string, i.e. a string
- which terminates at the first NUL unit. This termination unit is
- considered part of the string for all memory allocation purposes, but
- is not considered part of the string for all other logical purposes.
-
- 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. */
-
-
-/* Elementary string checks. */
-
-/* Check whether an UTF-8 string is well-formed.
- Return NULL if valid, or a pointer to the first invalid unit otherwise. */
-extern const uint8_t *
- u8_check (const uint8_t *s, size_t n)
- _UC_ATTRIBUTE_PURE;
-
-/* Check whether an UTF-16 string is well-formed.
- Return NULL if valid, or a pointer to the first invalid unit otherwise. */
-extern const uint16_t *
- u16_check (const uint16_t *s, size_t n)
- _UC_ATTRIBUTE_PURE;
-
-/* Check whether an UCS-4 string is well-formed.
- Return NULL if valid, or a pointer to the first invalid unit otherwise. */
-extern const uint32_t *
- u32_check (const uint32_t *s, size_t n)
- _UC_ATTRIBUTE_PURE;
-
-
-/* Elementary string conversions. */
-
-/* Convert an UTF-8 string to an UTF-16 string. */
-extern uint16_t *
- u8_to_u16 (const uint8_t *s, size_t n, uint16_t *resultbuf,
- size_t *lengthp);
-
-/* Convert an UTF-8 string to an UCS-4 string. */
-extern uint32_t *
- u8_to_u32 (const uint8_t *s, size_t n, uint32_t *resultbuf,
- size_t *lengthp);
-
-/* Convert an UTF-16 string to an UTF-8 string. */
-extern uint8_t *
- u16_to_u8 (const uint16_t *s, size_t n, uint8_t *resultbuf,
- size_t *lengthp);
-
-/* Convert an UTF-16 string to an UCS-4 string. */
-extern uint32_t *
- u16_to_u32 (const uint16_t *s, size_t n, uint32_t *resultbuf,
- size_t *lengthp);
-
-/* Convert an UCS-4 string to an UTF-8 string. */
-extern uint8_t *
- u32_to_u8 (const uint32_t *s, size_t n, uint8_t *resultbuf,
- size_t *lengthp);
-
-/* Convert an UCS-4 string to an UTF-16 string. */
-extern uint16_t *
- u32_to_u16 (const uint32_t *s, size_t n, uint16_t *resultbuf,
- size_t *lengthp);
-
-
-/* Elementary string functions. */
-
-/* Return the length (number of units) of the first character in S, which is
- no longer than N. Return 0 if it is the NUL character. Return -1 upon
- failure. */
-/* Similar to mblen(), except that s must not be NULL. */
-extern int
- u8_mblen (const uint8_t *s, size_t n)
- _UC_ATTRIBUTE_PURE;
-extern int
- u16_mblen (const uint16_t *s, size_t n)
- _UC_ATTRIBUTE_PURE;
-extern int
- u32_mblen (const uint32_t *s, size_t n)
- _UC_ATTRIBUTE_PURE;
-
-/* Return the length (number of units) of the first character in S, putting
- its 'ucs4_t' representation in *PUC. Upon failure, *PUC is set to 0xfffd,
- and an appropriate number of units is returned.
- The number of available units, N, must be > 0. */
-/* Similar to mbtowc(), except that puc and s must not be NULL, n must be > 0,
- and the NUL character is not treated specially. */
-/* The variants with _unsafe suffix are for backward compatibility with
- libunistring versions < 0.9.7. */
-
-#if 1
-# if !UNISTRING_HAVE_INLINE
-extern int
- u8_mbtouc_unsafe (ucs4_t *puc, const uint8_t *s, size_t n);
-# else
-extern int
- u8_mbtouc_unsafe_aux (ucs4_t *puc, const uint8_t *s, size_t n);
-static inline int
-u8_mbtouc_unsafe (ucs4_t *puc, const uint8_t *s, size_t n)
-{
- uint8_t c = *s;
-
- if (c < 0x80)
- {
- *puc = c;
- return 1;
- }
- else
- return u8_mbtouc_unsafe_aux (puc, s, n);
-}
-# endif
-#endif
-
-#if 1
-# if !UNISTRING_HAVE_INLINE
-extern int
- u16_mbtouc_unsafe (ucs4_t *puc, const uint16_t *s, size_t n);
-# else
-extern int
- u16_mbtouc_unsafe_aux (ucs4_t *puc, const uint16_t *s, size_t n);
-static inline int
-u16_mbtouc_unsafe (ucs4_t *puc, const uint16_t *s, size_t n)
-{
- uint16_t c = *s;
-
- if (c < 0xd800 || c >= 0xe000)
- {
- *puc = c;
- return 1;
- }
- else
- return u16_mbtouc_unsafe_aux (puc, s, n);
-}
-# endif
-#endif
-
-#if 1
-# if !UNISTRING_HAVE_INLINE
-extern int
- u32_mbtouc_unsafe (ucs4_t *puc, const uint32_t *s, size_t n);
-# else
-static inline int
-u32_mbtouc_unsafe (ucs4_t *puc,
- const uint32_t *s, size_t n _GL_UNUSED_PARAMETER)
-{
- uint32_t c = *s;
-
- if (c < 0xd800 || (c >= 0xe000 && c < 0x110000))
- *puc = c;
- else
- /* invalid multibyte character */
- *puc = 0xfffd;
- return 1;
-}
-# endif
-#endif
-
-#if 1
-# if !UNISTRING_HAVE_INLINE
-extern int
- u8_mbtouc (ucs4_t *puc, const uint8_t *s, size_t n);
-# else
-extern int
- u8_mbtouc_aux (ucs4_t *puc, const uint8_t *s, size_t n);
-static inline int
-u8_mbtouc (ucs4_t *puc, const uint8_t *s, size_t n)
-{
- uint8_t c = *s;
-
- if (c < 0x80)
- {
- *puc = c;
- return 1;
- }
- else
- return u8_mbtouc_aux (puc, s, n);
-}
-# endif
-#endif
-
-#if 1
-# if !UNISTRING_HAVE_INLINE
-extern int
- u16_mbtouc (ucs4_t *puc, const uint16_t *s, size_t n);
-# else
-extern int
- u16_mbtouc_aux (ucs4_t *puc, const uint16_t *s, size_t n);
-static inline int
-u16_mbtouc (ucs4_t *puc, const uint16_t *s, size_t n)
-{
- uint16_t c = *s;
-
- if (c < 0xd800 || c >= 0xe000)
- {
- *puc = c;
- return 1;
- }
- else
- return u16_mbtouc_aux (puc, s, n);
-}
-# endif
-#endif
-
-#if 1
-# if !UNISTRING_HAVE_INLINE
-extern int
- u32_mbtouc (ucs4_t *puc, const uint32_t *s, size_t n);
-# else
-static inline int
-u32_mbtouc (ucs4_t *puc, const uint32_t *s, size_t n _GL_UNUSED_PARAMETER)
-{
- uint32_t c = *s;
-
- if (c < 0xd800 || (c >= 0xe000 && c < 0x110000))
- *puc = c;
- else
- /* invalid multibyte character */
- *puc = 0xfffd;
- return 1;
-}
-# endif
-#endif
-
-/* Return the length (number of units) of the first character in S, putting
- its 'ucs4_t' representation in *PUC. Upon failure, *PUC is set to 0xfffd,
- and -1 is returned for an invalid sequence of units, -2 is returned for an
- incomplete sequence of units.
- The number of available units, N, must be > 0. */
-/* Similar to u*_mbtouc(), except that the return value gives more details
- about the failure, similar to mbrtowc(). */
-
-#if 1
-extern int
- u8_mbtoucr (ucs4_t *puc, const uint8_t *s, size_t n);
-#endif
-
-#if 1
-extern int
- u16_mbtoucr (ucs4_t *puc, const uint16_t *s, size_t n);
-#endif
-
-#if 1
-extern int
- u32_mbtoucr (ucs4_t *puc, const uint32_t *s, size_t n);
-#endif
-
-/* Put the multibyte character represented by UC in S, returning its
- length. Return -1 upon failure, -2 if the number of available units, N,
- is too small. The latter case cannot occur if N >= 6/2/1, respectively. */
-/* Similar to wctomb(), except that s must not be NULL, and the argument n
- must be specified. */
-
-#if 1
-/* Auxiliary function, also used by u8_chr, u8_strchr, u8_strrchr. */
-extern int
- u8_uctomb_aux (uint8_t *s, ucs4_t uc, int n);
-# if !UNISTRING_HAVE_INLINE
-extern int
- u8_uctomb (uint8_t *s, ucs4_t uc, int n);
-# else
-static inline int
-u8_uctomb (uint8_t *s, ucs4_t uc, int n)
-{
- if (uc < 0x80 && n > 0)
- {
- s[0] = uc;
- return 1;
- }
- else
- return u8_uctomb_aux (s, uc, n);
-}
-# endif
-#endif
-
-#if 1
-/* Auxiliary function, also used by u16_chr, u16_strchr, u16_strrchr. */
-extern int
- u16_uctomb_aux (uint16_t *s, ucs4_t uc, int n);
-# if !UNISTRING_HAVE_INLINE
-extern int
- u16_uctomb (uint16_t *s, ucs4_t uc, int n);
-# else
-static inline int
-u16_uctomb (uint16_t *s, ucs4_t uc, int n)
-{
- if (uc < 0xd800 && n > 0)
- {
- s[0] = uc;
- return 1;
- }
- else
- return u16_uctomb_aux (s, uc, n);
-}
-# endif
-#endif
-
-#if 1
-# if !UNISTRING_HAVE_INLINE
-extern int
- u32_uctomb (uint32_t *s, ucs4_t uc, int n);
-# else
-static inline int
-u32_uctomb (uint32_t *s, ucs4_t uc, int n)
-{
- if (uc < 0xd800 || (uc >= 0xe000 && uc < 0x110000))
- {
- if (n > 0)
- {
- *s = uc;
- return 1;
- }
- else
- return -2;
- }
- else
- return -1;
-}
-# endif
-#endif
-
-/* Copy N units from SRC to DEST. */
-/* Similar to memcpy(). */
-extern uint8_t *
- u8_cpy (uint8_t *dest, const uint8_t *src, size_t n);
-extern uint16_t *
- u16_cpy (uint16_t *dest, const uint16_t *src, size_t n);
-extern uint32_t *
- u32_cpy (uint32_t *dest, const uint32_t *src, size_t n);
-
-/* Copy N units from SRC to DEST, guaranteeing correct behavior for
- overlapping memory areas. */
-/* Similar to memmove(). */
-extern uint8_t *
- u8_move (uint8_t *dest, const uint8_t *src, size_t n);
-extern uint16_t *
- u16_move (uint16_t *dest, const uint16_t *src, size_t n);
-extern uint32_t *
- u32_move (uint32_t *dest, const uint32_t *src, size_t n);
-
-/* Set the first N characters of S to UC. UC should be a character that
- occupies only 1 unit. */
-/* Similar to memset(). */
-extern uint8_t *
- u8_set (uint8_t *s, ucs4_t uc, size_t n);
-extern uint16_t *
- u16_set (uint16_t *s, ucs4_t uc, size_t n);
-extern uint32_t *
- u32_set (uint32_t *s, ucs4_t uc, size_t n);
-
-/* Compare S1 and S2, each of length N. */
-/* Similar to memcmp(). */
-extern int
- u8_cmp (const uint8_t *s1, const uint8_t *s2, size_t n)
- _UC_ATTRIBUTE_PURE;
-extern int
- u16_cmp (const uint16_t *s1, const uint16_t *s2, size_t n)
- _UC_ATTRIBUTE_PURE;
-extern int
- u32_cmp (const uint32_t *s1, const uint32_t *s2, size_t n)
- _UC_ATTRIBUTE_PURE;
-
-/* Compare S1 and S2. */
-/* Similar to the gnulib function memcmp2(). */
-extern int
- u8_cmp2 (const uint8_t *s1, size_t n1, const uint8_t *s2, size_t n2)
- _UC_ATTRIBUTE_PURE;
-extern int
- u16_cmp2 (const uint16_t *s1, size_t n1, const uint16_t *s2, size_t n2)
- _UC_ATTRIBUTE_PURE;
-extern int
- u32_cmp2 (const uint32_t *s1, size_t n1, const uint32_t *s2, size_t n2)
- _UC_ATTRIBUTE_PURE;
-
-/* Search the string at S for UC. */
-/* Similar to memchr(). */
-extern uint8_t *
- u8_chr (const uint8_t *s, size_t n, ucs4_t uc)
- _UC_ATTRIBUTE_PURE;
-extern uint16_t *
- u16_chr (const uint16_t *s, size_t n, ucs4_t uc)
- _UC_ATTRIBUTE_PURE;
-extern uint32_t *
- u32_chr (const uint32_t *s, size_t n, ucs4_t uc)
- _UC_ATTRIBUTE_PURE;
-
-/* Count the number of Unicode characters in the N units from S. */
-/* Similar to mbsnlen(). */
-extern size_t
- u8_mbsnlen (const uint8_t *s, size_t n)
- _UC_ATTRIBUTE_PURE;
-extern size_t
- u16_mbsnlen (const uint16_t *s, size_t n)
- _UC_ATTRIBUTE_PURE;
-extern size_t
- u32_mbsnlen (const uint32_t *s, size_t n)
- _UC_ATTRIBUTE_PURE;
-
-/* Elementary string functions with memory allocation. */
-
-/* Make a freshly allocated copy of S, of length N. */
-extern uint8_t *
- u8_cpy_alloc (const uint8_t *s, size_t n);
-extern uint16_t *
- u16_cpy_alloc (const uint16_t *s, size_t n);
-extern uint32_t *
- u32_cpy_alloc (const uint32_t *s, size_t n);
-
-/* Elementary string functions on NUL terminated strings. */
-
-/* Return the length (number of units) of the first character in S.
- Return 0 if it is the NUL character. Return -1 upon failure. */
-extern int
- u8_strmblen (const uint8_t *s)
- _UC_ATTRIBUTE_PURE;
-extern int
- u16_strmblen (const uint16_t *s)
- _UC_ATTRIBUTE_PURE;
-extern int
- u32_strmblen (const uint32_t *s)
- _UC_ATTRIBUTE_PURE;
-
-/* Return the length (number of units) of the first character in S, putting
- its 'ucs4_t' representation in *PUC. Return 0 if it is the NUL
- character. Return -1 upon failure. */
-extern int
- u8_strmbtouc (ucs4_t *puc, const uint8_t *s);
-extern int
- u16_strmbtouc (ucs4_t *puc, const uint16_t *s);
-extern int
- u32_strmbtouc (ucs4_t *puc, const uint32_t *s);
-
-/* Forward iteration step. Advances the pointer past the next character,
- or returns NULL if the end of the string has been reached. Puts the
- character's 'ucs4_t' representation in *PUC. */
-extern const uint8_t *
- u8_next (ucs4_t *puc, const uint8_t *s);
-extern const uint16_t *
- u16_next (ucs4_t *puc, const uint16_t *s);
-extern const uint32_t *
- u32_next (ucs4_t *puc, const uint32_t *s);
-
-/* Backward iteration step. Advances the pointer to point to the previous
- character, or returns NULL if the beginning of the string had been reached.
- Puts the character's 'ucs4_t' representation in *PUC. */
-extern const uint8_t *
- u8_prev (ucs4_t *puc, const uint8_t *s, const uint8_t *start);
-extern const uint16_t *
- u16_prev (ucs4_t *puc, const uint16_t *s, const uint16_t *start);
-extern const uint32_t *
- u32_prev (ucs4_t *puc, const uint32_t *s, const uint32_t *start);
-
-/* Return the number of units in S. */
-/* Similar to strlen(), wcslen(). */
-extern size_t
- u8_strlen (const uint8_t *s)
- _UC_ATTRIBUTE_PURE;
-extern size_t
- u16_strlen (const uint16_t *s)
- _UC_ATTRIBUTE_PURE;
-extern size_t
- u32_strlen (const uint32_t *s)
- _UC_ATTRIBUTE_PURE;
-
-/* Return the number of units in S, but at most MAXLEN. */
-/* Similar to strnlen(), wcsnlen(). */
-extern size_t
- u8_strnlen (const uint8_t *s, size_t maxlen)
- _UC_ATTRIBUTE_PURE;
-extern size_t
- u16_strnlen (const uint16_t *s, size_t maxlen)
- _UC_ATTRIBUTE_PURE;
-extern size_t
- u32_strnlen (const uint32_t *s, size_t maxlen)
- _UC_ATTRIBUTE_PURE;
-
-/* Copy SRC to DEST. */
-/* Similar to strcpy(), wcscpy(). */
-extern uint8_t *
- u8_strcpy (uint8_t *dest, const uint8_t *src);
-extern uint16_t *
- u16_strcpy (uint16_t *dest, const uint16_t *src);
-extern uint32_t *
- u32_strcpy (uint32_t *dest, const uint32_t *src);
-
-/* Copy SRC to DEST, returning the address of the terminating NUL in DEST. */
-/* Similar to stpcpy(). */
-extern uint8_t *
- u8_stpcpy (uint8_t *dest, const uint8_t *src);
-extern uint16_t *
- u16_stpcpy (uint16_t *dest, const uint16_t *src);
-extern uint32_t *
- u32_stpcpy (uint32_t *dest, const uint32_t *src);
-
-/* Copy no more than N units of SRC to DEST. */
-/* Similar to strncpy(), wcsncpy(). */
-extern uint8_t *
- u8_strncpy (uint8_t *dest, const uint8_t *src, size_t n);
-extern uint16_t *
- u16_strncpy (uint16_t *dest, const uint16_t *src, size_t n);
-extern uint32_t *
- u32_strncpy (uint32_t *dest, const uint32_t *src, size_t n);
-
-/* Copy no more than N units of SRC to DEST. Return a pointer past the last
- non-NUL unit written into DEST. */
-/* Similar to stpncpy(). */
-extern uint8_t *
- u8_stpncpy (uint8_t *dest, const uint8_t *src, size_t n);
-extern uint16_t *
- u16_stpncpy (uint16_t *dest, const uint16_t *src, size_t n);
-extern uint32_t *
- u32_stpncpy (uint32_t *dest, const uint32_t *src, size_t n);
-
-/* Append SRC onto DEST. */
-/* Similar to strcat(), wcscat(). */
-extern uint8_t *
- u8_strcat (uint8_t *dest, const uint8_t *src);
-extern uint16_t *
- u16_strcat (uint16_t *dest, const uint16_t *src);
-extern uint32_t *
- u32_strcat (uint32_t *dest, const uint32_t *src);
-
-/* Append no more than N units of SRC onto DEST. */
-/* Similar to strncat(), wcsncat(). */
-extern uint8_t *
- u8_strncat (uint8_t *dest, const uint8_t *src, size_t n);
-extern uint16_t *
- u16_strncat (uint16_t *dest, const uint16_t *src, size_t n);
-extern uint32_t *
- u32_strncat (uint32_t *dest, const uint32_t *src, size_t n);
-
-/* Compare S1 and S2. */
-/* Similar to strcmp(), wcscmp(). */
-#ifdef __sun
-/* Avoid a collision with the u8_strcmp() function in Solaris 11 libc. */
-extern int
- u8_strcmp_gnu (const uint8_t *s1, const uint8_t *s2)
- _UC_ATTRIBUTE_PURE;
-# define u8_strcmp u8_strcmp_gnu
-#else
-extern int
- u8_strcmp (const uint8_t *s1, const uint8_t *s2)
- _UC_ATTRIBUTE_PURE;
-#endif
-extern int
- u16_strcmp (const uint16_t *s1, const uint16_t *s2)
- _UC_ATTRIBUTE_PURE;
-extern int
- u32_strcmp (const uint32_t *s1, const uint32_t *s2)
- _UC_ATTRIBUTE_PURE;
-
-/* Compare S1 and S2 using the collation rules of the current locale.
- Return -1 if S1 < S2, 0 if S1 = S2, 1 if S1 > S2.
- Upon failure, set errno and return any value. */
-/* Similar to strcoll(), wcscoll(). */
-extern int
- u8_strcoll (const uint8_t *s1, const uint8_t *s2);
-extern int
- u16_strcoll (const uint16_t *s1, const uint16_t *s2);
-extern int
- u32_strcoll (const uint32_t *s1, const uint32_t *s2);
-
-/* Compare no more than N units of S1 and S2. */
-/* Similar to strncmp(), wcsncmp(). */
-extern int
- u8_strncmp (const uint8_t *s1, const uint8_t *s2, size_t n)
- _UC_ATTRIBUTE_PURE;
-extern int
- u16_strncmp (const uint16_t *s1, const uint16_t *s2, size_t n)
- _UC_ATTRIBUTE_PURE;
-extern int
- u32_strncmp (const uint32_t *s1, const uint32_t *s2, size_t n)
- _UC_ATTRIBUTE_PURE;
-
-/* Duplicate S, returning an identical malloc'd string. */
-/* Similar to strdup(), wcsdup(). */
-extern uint8_t *
- u8_strdup (const uint8_t *s);
-extern uint16_t *
- u16_strdup (const uint16_t *s);
-extern uint32_t *
- u32_strdup (const uint32_t *s);
-
-/* Find the first occurrence of UC in STR. */
-/* Similar to strchr(), wcschr(). */
-extern uint8_t *
- u8_strchr (const uint8_t *str, ucs4_t uc)
- _UC_ATTRIBUTE_PURE;
-extern uint16_t *
- u16_strchr (const uint16_t *str, ucs4_t uc)
- _UC_ATTRIBUTE_PURE;
-extern uint32_t *
- u32_strchr (const uint32_t *str, ucs4_t uc)
- _UC_ATTRIBUTE_PURE;
-
-/* Find the last occurrence of UC in STR. */
-/* Similar to strrchr(), wcsrchr(). */
-extern uint8_t *
- u8_strrchr (const uint8_t *str, ucs4_t uc)
- _UC_ATTRIBUTE_PURE;
-extern uint16_t *
- u16_strrchr (const uint16_t *str, ucs4_t uc)
- _UC_ATTRIBUTE_PURE;
-extern uint32_t *
- u32_strrchr (const uint32_t *str, ucs4_t uc)
- _UC_ATTRIBUTE_PURE;
-
-/* Return the length of the initial segment of STR which consists entirely
- of Unicode characters not in REJECT. */
-/* Similar to strcspn(), wcscspn(). */
-extern size_t
- u8_strcspn (const uint8_t *str, const uint8_t *reject)
- _UC_ATTRIBUTE_PURE;
-extern size_t
- u16_strcspn (const uint16_t *str, const uint16_t *reject)
- _UC_ATTRIBUTE_PURE;
-extern size_t
- u32_strcspn (const uint32_t *str, const uint32_t *reject)
- _UC_ATTRIBUTE_PURE;
-
-/* Return the length of the initial segment of STR which consists entirely
- of Unicode characters in ACCEPT. */
-/* Similar to strspn(), wcsspn(). */
-extern size_t
- u8_strspn (const uint8_t *str, const uint8_t *accept)
- _UC_ATTRIBUTE_PURE;
-extern size_t
- u16_strspn (const uint16_t *str, const uint16_t *accept)
- _UC_ATTRIBUTE_PURE;
-extern size_t
- u32_strspn (const uint32_t *str, const uint32_t *accept)
- _UC_ATTRIBUTE_PURE;
-
-/* Find the first occurrence in STR of any character in ACCEPT. */
-/* Similar to strpbrk(), wcspbrk(). */
-extern uint8_t *
- u8_strpbrk (const uint8_t *str, const uint8_t *accept)
- _UC_ATTRIBUTE_PURE;
-extern uint16_t *
- u16_strpbrk (const uint16_t *str, const uint16_t *accept)
- _UC_ATTRIBUTE_PURE;
-extern uint32_t *
- u32_strpbrk (const uint32_t *str, const uint32_t *accept)
- _UC_ATTRIBUTE_PURE;
-
-/* Find the first occurrence of NEEDLE in HAYSTACK. */
-/* Similar to strstr(), wcsstr(). */
-extern uint8_t *
- u8_strstr (const uint8_t *haystack, const uint8_t *needle)
- _UC_ATTRIBUTE_PURE;
-extern uint16_t *
- u16_strstr (const uint16_t *haystack, const uint16_t *needle)
- _UC_ATTRIBUTE_PURE;
-extern uint32_t *
- u32_strstr (const uint32_t *haystack, const uint32_t *needle)
- _UC_ATTRIBUTE_PURE;
-
-/* Test whether STR starts with PREFIX. */
-extern bool
- u8_startswith (const uint8_t *str, const uint8_t *prefix)
- _UC_ATTRIBUTE_PURE;
-extern bool
- u16_startswith (const uint16_t *str, const uint16_t *prefix)
- _UC_ATTRIBUTE_PURE;
-extern bool
- u32_startswith (const uint32_t *str, const uint32_t *prefix)
- _UC_ATTRIBUTE_PURE;
-
-/* Test whether STR ends with SUFFIX. */
-extern bool
- u8_endswith (const uint8_t *str, const uint8_t *suffix)
- _UC_ATTRIBUTE_PURE;
-extern bool
- u16_endswith (const uint16_t *str, const uint16_t *suffix)
- _UC_ATTRIBUTE_PURE;
-extern bool
- u32_endswith (const uint32_t *str, const uint32_t *suffix)
- _UC_ATTRIBUTE_PURE;
-
-/* Divide STR into tokens separated by characters in DELIM.
- This interface is actually more similar to wcstok than to strtok. */
-/* Similar to strtok_r(), wcstok(). */
-extern uint8_t *
- u8_strtok (uint8_t *str, const uint8_t *delim, uint8_t **ptr);
-extern uint16_t *
- u16_strtok (uint16_t *str, const uint16_t *delim, uint16_t **ptr);
-extern uint32_t *
- u32_strtok (uint32_t *str, const uint32_t *delim, uint32_t **ptr);
-
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _UNISTR_H */