Merge branch 'feature/upstream' into develop

1 files changed, 0 insertions, 759 deletions

diff --git a/lib/unistr.h b/lib/unistr.h
deleted file mode 100644
index 564a13a..0000000
--- 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 */