Restoring authorship annotation for <workfork@yandex-team.ru>. Commit 2 of 2.

1 files changed, 754 insertions, 754 deletions

diff --git a/contrib/libs/utf8proc/utf8proc.c b/contrib/libs/utf8proc/utf8proc.c
index 916d746918..c0f84d9702 100644
--- a/contrib/libs/utf8proc/utf8proc.c
+++ b/contrib/libs/utf8proc/utf8proc.c
@@ -1,754 +1,754 @@
-/* -*- mode: c; c-basic-offset: 2; tab-width: 2; indent-tabs-mode: nil -*- */ 
-/* 
- *  Copyright (c) 2015 Steven G. Johnson, Jiahao Chen, Peter Colberg, Tony Kelman, Scott P. Jones, and other contributors. 
- *  Copyright (c) 2009 Public Software Group e. V., Berlin, Germany 
- * 
- *  Permission is hereby granted, free of charge, to any person obtaining a 
- *  copy of this software and associated documentation files (the "Software"), 
- *  to deal in the Software without restriction, including without limitation 
- *  the rights to use, copy, modify, merge, publish, distribute, sublicense, 
- *  and/or sell copies of the Software, and to permit persons to whom the 
- *  Software is furnished to do so, subject to the following conditions: 
- * 
- *  The above copyright notice and this permission notice shall be included in 
- *  all copies or substantial portions of the Software. 
- * 
- *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
- *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
- *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
- *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
- *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
- *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
- *  DEALINGS IN THE SOFTWARE. 
- */ 
- 
-/* 
- *  This library contains derived data from a modified version of the 
- *  Unicode data files. 
- * 
- *  The original data files are available at 
- *  http://www.unicode.org/Public/UNIDATA/ 
- * 
- *  Please notice the copyright statement in the file "utf8proc_data.c". 
- */ 
- 
- 
-/* 
- *  File name:    utf8proc.c 
- * 
- *  Description: 
- *  Implementation of libutf8proc. 
- */ 
- 
- 
-#include "utf8proc.h" 
-#include "utf8proc_data.c" 
- 
- 
-UTF8PROC_DLLEXPORT const utf8proc_int8_t utf8proc_utf8class[256] = { 
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
-  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
-  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 
-  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
-  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 
-  3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 
-  4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0 }; 
- 
-#define UTF8PROC_HANGUL_SBASE 0xAC00 
-#define UTF8PROC_HANGUL_LBASE 0x1100 
-#define UTF8PROC_HANGUL_VBASE 0x1161 
-#define UTF8PROC_HANGUL_TBASE 0x11A7 
-#define UTF8PROC_HANGUL_LCOUNT 19 
-#define UTF8PROC_HANGUL_VCOUNT 21 
-#define UTF8PROC_HANGUL_TCOUNT 28 
-#define UTF8PROC_HANGUL_NCOUNT 588 
-#define UTF8PROC_HANGUL_SCOUNT 11172 
-/* END is exclusive */ 
-#define UTF8PROC_HANGUL_L_START  0x1100 
-#define UTF8PROC_HANGUL_L_END    0x115A 
-#define UTF8PROC_HANGUL_L_FILLER 0x115F 
-#define UTF8PROC_HANGUL_V_START  0x1160 
-#define UTF8PROC_HANGUL_V_END    0x11A3 
-#define UTF8PROC_HANGUL_T_START  0x11A8 
-#define UTF8PROC_HANGUL_T_END    0x11FA 
-#define UTF8PROC_HANGUL_S_START  0xAC00 
-#define UTF8PROC_HANGUL_S_END    0xD7A4 
- 
-/* Should follow semantic-versioning rules (semver.org) based on API 
-   compatibility.  (Note that the shared-library version number will 
-   be different, being based on ABI compatibility.): */ 
-#define STRINGIZEx(x) #x 
-#define STRINGIZE(x) STRINGIZEx(x) 
-UTF8PROC_DLLEXPORT const char *utf8proc_version(void) { 
-  return STRINGIZE(UTF8PROC_VERSION_MAJOR) "." STRINGIZE(UTF8PROC_VERSION_MINOR) "." STRINGIZE(UTF8PROC_VERSION_PATCH) ""; 
-} 
- 
-UTF8PROC_DLLEXPORT const char *utf8proc_errmsg(utf8proc_ssize_t errcode) { 
-  switch (errcode) { 
-    case UTF8PROC_ERROR_NOMEM: 
-    return "Memory for processing UTF-8 data could not be allocated."; 
-    case UTF8PROC_ERROR_OVERFLOW: 
-    return "UTF-8 string is too long to be processed."; 
-    case UTF8PROC_ERROR_INVALIDUTF8: 
-    return "Invalid UTF-8 string"; 
-    case UTF8PROC_ERROR_NOTASSIGNED: 
-    return "Unassigned Unicode code point found in UTF-8 string."; 
-    case UTF8PROC_ERROR_INVALIDOPTS: 
-    return "Invalid options for UTF-8 processing chosen."; 
-    default: 
-    return "An unknown error occurred while processing UTF-8 data."; 
-  } 
-} 
- 
-#define utf_cont(ch)  (((ch) & 0xc0) == 0x80) 
-UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_iterate( 
-  const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_int32_t *dst 
-) { 
-  utf8proc_uint32_t uc; 
-  const utf8proc_uint8_t *end; 
- 
-  *dst = -1; 
-  if (!strlen) return 0; 
-  end = str + ((strlen < 0) ? 4 : strlen); 
-  uc = *str++; 
-  if (uc < 0x80) { 
-    *dst = uc; 
-    return 1; 
-  } 
-  // Must be between 0xc2 and 0xf4 inclusive to be valid 
-  if ((uc - 0xc2) > (0xf4-0xc2)) return UTF8PROC_ERROR_INVALIDUTF8; 
-  if (uc < 0xe0) {         // 2-byte sequence 
-     // Must have valid continuation character 
-     if (str >= end || !utf_cont(*str)) return UTF8PROC_ERROR_INVALIDUTF8; 
-     *dst = ((uc & 0x1f)<<6) | (*str & 0x3f); 
-     return 2; 
-  } 
-  if (uc < 0xf0) {        // 3-byte sequence 
-     if ((str + 1 >= end) || !utf_cont(*str) || !utf_cont(str[1])) 
-        return UTF8PROC_ERROR_INVALIDUTF8; 
-     // Check for surrogate chars 
-     if (uc == 0xed && *str > 0x9f) 
-         return UTF8PROC_ERROR_INVALIDUTF8; 
-     uc = ((uc & 0xf)<<12) | ((*str & 0x3f)<<6) | (str[1] & 0x3f); 
-     if (uc < 0x800) 
-         return UTF8PROC_ERROR_INVALIDUTF8; 
-     *dst = uc; 
-     return 3; 
-  } 
-  // 4-byte sequence 
-  // Must have 3 valid continuation characters 
-  if ((str + 2 >= end) || !utf_cont(*str) || !utf_cont(str[1]) || !utf_cont(str[2])) 
-     return UTF8PROC_ERROR_INVALIDUTF8; 
-  // Make sure in correct range (0x10000 - 0x10ffff) 
-  if (uc == 0xf0) { 
-    if (*str < 0x90) return UTF8PROC_ERROR_INVALIDUTF8; 
-  } else if (uc == 0xf4) { 
-    if (*str > 0x8f) return UTF8PROC_ERROR_INVALIDUTF8; 
-  } 
-  *dst = ((uc & 7)<<18) | ((*str & 0x3f)<<12) | ((str[1] & 0x3f)<<6) | (str[2] & 0x3f); 
-  return 4; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_codepoint_valid(utf8proc_int32_t uc) { 
-    return (((utf8proc_uint32_t)uc)-0xd800 > 0x07ff) && ((utf8proc_uint32_t)uc < 0x110000); 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_encode_char(utf8proc_int32_t uc, utf8proc_uint8_t *dst) { 
-  if (uc < 0x00) { 
-    return 0; 
-  } else if (uc < 0x80) { 
-    dst[0] = (utf8proc_uint8_t) uc; 
-    return 1; 
-  } else if (uc < 0x800) { 
-    dst[0] = (utf8proc_uint8_t)(0xC0 + (uc >> 6)); 
-    dst[1] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F)); 
-    return 2; 
-  // Note: we allow encoding 0xd800-0xdfff here, so as not to change 
-  // the API, however, these are actually invalid in UTF-8 
-  } else if (uc < 0x10000) { 
-    dst[0] = (utf8proc_uint8_t)(0xE0 + (uc >> 12)); 
-    dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F)); 
-    dst[2] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F)); 
-    return 3; 
-  } else if (uc < 0x110000) { 
-    dst[0] = (utf8proc_uint8_t)(0xF0 + (uc >> 18)); 
-    dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 12) & 0x3F)); 
-    dst[2] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F)); 
-    dst[3] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F)); 
-    return 4; 
-  } else return 0; 
-} 
- 
-/* internal "unsafe" version that does not check whether uc is in range */ 
-static utf8proc_ssize_t unsafe_encode_char(utf8proc_int32_t uc, utf8proc_uint8_t *dst) { 
-   if (uc < 0x00) { 
-      return 0; 
-   } else if (uc < 0x80) { 
-      dst[0] = (utf8proc_uint8_t)uc; 
-      return 1; 
-   } else if (uc < 0x800) { 
-      dst[0] = (utf8proc_uint8_t)(0xC0 + (uc >> 6)); 
-      dst[1] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F)); 
-      return 2; 
-   } else if (uc == 0xFFFF) { 
-       dst[0] = (utf8proc_uint8_t)0xFF; 
-       return 1; 
-   } else if (uc == 0xFFFE) { 
-       dst[0] = (utf8proc_uint8_t)0xFE; 
-       return 1; 
-   } else if (uc < 0x10000) { 
-      dst[0] = (utf8proc_uint8_t)(0xE0 + (uc >> 12)); 
-      dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F)); 
-      dst[2] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F)); 
-      return 3; 
-   } else if (uc < 0x110000) { 
-      dst[0] = (utf8proc_uint8_t)(0xF0 + (uc >> 18)); 
-      dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 12) & 0x3F)); 
-      dst[2] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F)); 
-      dst[3] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F)); 
-      return 4; 
-   } else return 0; 
-} 
- 
-/* internal "unsafe" version that does not check whether uc is in range */ 
-static const utf8proc_property_t *unsafe_get_property(utf8proc_int32_t uc) { 
-  /* ASSERT: uc >= 0 && uc < 0x110000 */ 
-  return utf8proc_properties + ( 
-    utf8proc_stage2table[ 
-      utf8proc_stage1table[uc >> 8] + (uc & 0xFF) 
-    ] 
-  ); 
-} 
- 
-UTF8PROC_DLLEXPORT const utf8proc_property_t *utf8proc_get_property(utf8proc_int32_t uc) { 
-  return uc < 0 || uc >= 0x110000 ? utf8proc_properties : unsafe_get_property(uc); 
-} 
- 
-/* return whether there is a grapheme break between boundclasses lbc and tbc 
-   (according to the definition of extended grapheme clusters) 
- 
-  Rule numbering refers to TR29 Version 29 (Unicode 9.0.0): 
-  http://www.unicode.org/reports/tr29/tr29-29.html 
- 
-  CAVEATS: 
-   Please note that evaluation of GB10 (grapheme breaks between emoji zwj sequences) 
-   and GB 12/13 (regional indicator code points) require knowledge of previous characters 
-   and are thus not handled by this function. This may result in an incorrect break before 
-   an E_Modifier class codepoint and an incorrectly missing break between two 
-   REGIONAL_INDICATOR class code points if such support does not exist in the caller. 
- 
-   See the special support in grapheme_break_extended, for required bookkeeping by the caller. 
-*/ 
-static utf8proc_bool grapheme_break_simple(int lbc, int tbc) { 
-  return 
-    (lbc == UTF8PROC_BOUNDCLASS_START) ? true :       // GB1 
-    (lbc == UTF8PROC_BOUNDCLASS_CR &&                 // GB3 
-     tbc == UTF8PROC_BOUNDCLASS_LF) ? false :         // --- 
-    (lbc >= UTF8PROC_BOUNDCLASS_CR && lbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true :  // GB4 
-    (tbc >= UTF8PROC_BOUNDCLASS_CR && tbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true :  // GB5 
-    (lbc == UTF8PROC_BOUNDCLASS_L &&                  // GB6 
-     (tbc == UTF8PROC_BOUNDCLASS_L ||                 // --- 
-      tbc == UTF8PROC_BOUNDCLASS_V ||                 // --- 
-      tbc == UTF8PROC_BOUNDCLASS_LV ||                // --- 
-      tbc == UTF8PROC_BOUNDCLASS_LVT)) ? false :      // --- 
-    ((lbc == UTF8PROC_BOUNDCLASS_LV ||                // GB7 
-      lbc == UTF8PROC_BOUNDCLASS_V) &&                // --- 
-     (tbc == UTF8PROC_BOUNDCLASS_V ||                 // --- 
-      tbc == UTF8PROC_BOUNDCLASS_T)) ? false :        // --- 
-    ((lbc == UTF8PROC_BOUNDCLASS_LVT ||               // GB8 
-      lbc == UTF8PROC_BOUNDCLASS_T) &&                // --- 
-     tbc == UTF8PROC_BOUNDCLASS_T) ? false :          // --- 
-    (tbc == UTF8PROC_BOUNDCLASS_EXTEND ||             // GB9 
-     tbc == UTF8PROC_BOUNDCLASS_ZWJ ||                // --- 
-     tbc == UTF8PROC_BOUNDCLASS_SPACINGMARK ||        // GB9a 
-     lbc == UTF8PROC_BOUNDCLASS_PREPEND) ? false :    // GB9b 
-    ((lbc == UTF8PROC_BOUNDCLASS_E_BASE ||            // GB10 (requires additional handling below) 
-      lbc == UTF8PROC_BOUNDCLASS_E_BASE_GAZ) &&       // ---- 
-     tbc == UTF8PROC_BOUNDCLASS_E_MODIFIER) ? false : // ---- 
-    (lbc == UTF8PROC_BOUNDCLASS_ZWJ &&                         // GB11 
-     (tbc == UTF8PROC_BOUNDCLASS_GLUE_AFTER_ZWJ ||             // ---- 
-      tbc == UTF8PROC_BOUNDCLASS_E_BASE_GAZ)) ? false :        // ---- 
-    (lbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR &&          // GB12/13 (requires additional handling below) 
-     tbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR) ? false :  // ---- 
-    true; // GB999 
-} 
- 
-static utf8proc_bool grapheme_break_extended(int lbc, int tbc, utf8proc_int32_t *state) 
-{ 
-  int lbc_override = ((state && *state != UTF8PROC_BOUNDCLASS_START) 
-                      ? *state : lbc); 
-  utf8proc_bool break_permitted = grapheme_break_simple(lbc_override, tbc); 
-  if (state) { 
-    // Special support for GB 12/13 made possible by GB999. After two RI 
-    // class codepoints we want to force a break. Do this by resetting the 
-    // second RI's bound class to UTF8PROC_BOUNDCLASS_OTHER, to force a break 
-    // after that character according to GB999 (unless of course such a break is 
-    // forbidden by a different rule such as GB9). 
-    if (*state == tbc && tbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR) 
-      *state = UTF8PROC_BOUNDCLASS_OTHER; 
-    // Special support for GB10. Fold any EXTEND codepoints into the previous 
-    // boundclass if we're dealing with an emoji base boundclass. 
-    else if ((*state == UTF8PROC_BOUNDCLASS_E_BASE      || 
-              *state == UTF8PROC_BOUNDCLASS_E_BASE_GAZ) && 
-             tbc == UTF8PROC_BOUNDCLASS_EXTEND) 
-      *state = UTF8PROC_BOUNDCLASS_E_BASE; 
-    else 
-      *state = tbc; 
-  } 
-  return break_permitted; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_grapheme_break_stateful( 
-    utf8proc_int32_t c1, utf8proc_int32_t c2, utf8proc_int32_t *state) { 
- 
-  return grapheme_break_extended(utf8proc_get_property(c1)->boundclass, 
-                                 utf8proc_get_property(c2)->boundclass, 
-                                 state); 
-} 
- 
- 
-UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_grapheme_break( 
-    utf8proc_int32_t c1, utf8proc_int32_t c2) { 
-  return utf8proc_grapheme_break_stateful(c1, c2, NULL); 
-} 
- 
-static utf8proc_int32_t seqindex_decode_entry(const utf8proc_uint16_t **entry) 
-{ 
-  utf8proc_int32_t entry_cp = **entry; 
-  if ((entry_cp & 0xF800) == 0xD800) { 
-    *entry = *entry + 1; 
-    entry_cp = ((entry_cp & 0x03FF) << 10) | (**entry & 0x03FF); 
-    entry_cp += 0x10000; 
-  } 
-  return entry_cp; 
-} 
- 
-static utf8proc_int32_t seqindex_decode_index(const utf8proc_uint32_t seqindex) 
-{ 
-  const utf8proc_uint16_t *entry = &utf8proc_sequences[seqindex]; 
-  return seqindex_decode_entry(&entry); 
-} 
- 
-static utf8proc_ssize_t seqindex_write_char_decomposed(utf8proc_uint16_t seqindex, utf8proc_int32_t *dst, utf8proc_ssize_t bufsize, utf8proc_option_t options, int *last_boundclass) { 
-  utf8proc_ssize_t written = 0; 
-  const utf8proc_uint16_t *entry = &utf8proc_sequences[seqindex & 0x1FFF]; 
-  int len = seqindex >> 13; 
-  if (len >= 7) { 
-    len = *entry; 
-    entry++; 
-  } 
-  for (; len >= 0; entry++, len--) { 
-    utf8proc_int32_t entry_cp = seqindex_decode_entry(&entry); 
- 
-    written += utf8proc_decompose_char(entry_cp, dst+written, 
-      (bufsize > written) ? (bufsize - written) : 0, options, 
-    last_boundclass); 
-    if (written < 0) return UTF8PROC_ERROR_OVERFLOW; 
-  } 
-  return written; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_tolower(utf8proc_int32_t c) 
-{ 
-  utf8proc_int32_t cl = utf8proc_get_property(c)->lowercase_seqindex; 
-  return cl != UINT16_MAX ? seqindex_decode_index(cl) : c; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_toupper(utf8proc_int32_t c) 
-{ 
-  utf8proc_int32_t cu = utf8proc_get_property(c)->uppercase_seqindex; 
-  return cu != UINT16_MAX ? seqindex_decode_index(cu) : c; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_totitle(utf8proc_int32_t c) 
-{ 
-  utf8proc_int32_t cu = utf8proc_get_property(c)->titlecase_seqindex; 
-  return cu != UINT16_MAX ? seqindex_decode_index(cu) : c; 
-} 
- 
-/* return a character width analogous to wcwidth (except portable and 
-   hopefully less buggy than most system wcwidth functions). */ 
-UTF8PROC_DLLEXPORT int utf8proc_charwidth(utf8proc_int32_t c) { 
-  return utf8proc_get_property(c)->charwidth; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_category_t utf8proc_category(utf8proc_int32_t c) { 
-  return utf8proc_get_property(c)->category; 
-} 
- 
-UTF8PROC_DLLEXPORT const char *utf8proc_category_string(utf8proc_int32_t c) { 
-  static const char s[][3] = {"Cn","Lu","Ll","Lt","Lm","Lo","Mn","Mc","Me","Nd","Nl","No","Pc","Pd","Ps","Pe","Pi","Pf","Po","Sm","Sc","Sk","So","Zs","Zl","Zp","Cc","Cf","Cs","Co"}; 
-  return s[utf8proc_category(c)]; 
-} 
- 
-#define utf8proc_decompose_lump(replacement_uc) \ 
-  return utf8proc_decompose_char((replacement_uc), dst, bufsize, \ 
-  options & ~UTF8PROC_LUMP, last_boundclass) 
- 
-UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose_char(utf8proc_int32_t uc, utf8proc_int32_t *dst, utf8proc_ssize_t bufsize, utf8proc_option_t options, int *last_boundclass) { 
-  const utf8proc_property_t *property; 
-  utf8proc_propval_t category; 
-  utf8proc_int32_t hangul_sindex; 
-  if (uc < 0 || uc >= 0x110000) return UTF8PROC_ERROR_NOTASSIGNED; 
-  property = unsafe_get_property(uc); 
-  category = property->category; 
-  hangul_sindex = uc - UTF8PROC_HANGUL_SBASE; 
-  if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) { 
-    if (hangul_sindex >= 0 && hangul_sindex < UTF8PROC_HANGUL_SCOUNT) { 
-      utf8proc_int32_t hangul_tindex; 
-      if (bufsize >= 1) { 
-        dst[0] = UTF8PROC_HANGUL_LBASE + 
-          hangul_sindex / UTF8PROC_HANGUL_NCOUNT; 
-        if (bufsize >= 2) dst[1] = UTF8PROC_HANGUL_VBASE + 
-          (hangul_sindex % UTF8PROC_HANGUL_NCOUNT) / UTF8PROC_HANGUL_TCOUNT; 
-      } 
-      hangul_tindex = hangul_sindex % UTF8PROC_HANGUL_TCOUNT; 
-      if (!hangul_tindex) return 2; 
-      if (bufsize >= 3) dst[2] = UTF8PROC_HANGUL_TBASE + hangul_tindex; 
-      return 3; 
-    } 
-  } 
-  if (options & UTF8PROC_REJECTNA) { 
-    if (!category) return UTF8PROC_ERROR_NOTASSIGNED; 
-  } 
-  if (options & UTF8PROC_IGNORE) { 
-    if (property->ignorable) return 0; 
-  } 
-  if (options & UTF8PROC_LUMP) { 
-    if (category == UTF8PROC_CATEGORY_ZS) utf8proc_decompose_lump(0x0020); 
-    if (uc == 0x2018 || uc == 0x2019 || uc == 0x02BC || uc == 0x02C8) 
-      utf8proc_decompose_lump(0x0027); 
-    if (category == UTF8PROC_CATEGORY_PD || uc == 0x2212) 
-      utf8proc_decompose_lump(0x002D); 
-    if (uc == 0x2044 || uc == 0x2215) utf8proc_decompose_lump(0x002F); 
-    if (uc == 0x2236) utf8proc_decompose_lump(0x003A); 
-    if (uc == 0x2039 || uc == 0x2329 || uc == 0x3008) 
-      utf8proc_decompose_lump(0x003C); 
-    if (uc == 0x203A || uc == 0x232A || uc == 0x3009) 
-      utf8proc_decompose_lump(0x003E); 
-    if (uc == 0x2216) utf8proc_decompose_lump(0x005C); 
-    if (uc == 0x02C4 || uc == 0x02C6 || uc == 0x2038 || uc == 0x2303) 
-      utf8proc_decompose_lump(0x005E); 
-    if (category == UTF8PROC_CATEGORY_PC || uc == 0x02CD) 
-      utf8proc_decompose_lump(0x005F); 
-    if (uc == 0x02CB) utf8proc_decompose_lump(0x0060); 
-    if (uc == 0x2223) utf8proc_decompose_lump(0x007C); 
-    if (uc == 0x223C) utf8proc_decompose_lump(0x007E); 
-    if ((options & UTF8PROC_NLF2LS) && (options & UTF8PROC_NLF2PS)) { 
-      if (category == UTF8PROC_CATEGORY_ZL || 
-          category == UTF8PROC_CATEGORY_ZP) 
-        utf8proc_decompose_lump(0x000A); 
-    } 
-  } 
-  if (options & UTF8PROC_STRIPMARK) { 
-    if (category == UTF8PROC_CATEGORY_MN || 
-      category == UTF8PROC_CATEGORY_MC || 
-      category == UTF8PROC_CATEGORY_ME) return 0; 
-  } 
-  if (options & UTF8PROC_CASEFOLD) { 
-    if (property->casefold_seqindex != UINT16_MAX) { 
-      return seqindex_write_char_decomposed(property->casefold_seqindex, dst, bufsize, options, last_boundclass); 
-    } 
-  } 
-  if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) { 
-    if (property->decomp_seqindex != UINT16_MAX && 
-        (!property->decomp_type || (options & UTF8PROC_COMPAT))) { 
-      return seqindex_write_char_decomposed(property->decomp_seqindex, dst, bufsize, options, last_boundclass); 
-    } 
-  } 
-  if (options & UTF8PROC_CHARBOUND) { 
-    utf8proc_bool boundary; 
-    int tbc = property->boundclass; 
-    boundary = grapheme_break_extended(*last_boundclass, tbc, last_boundclass); 
-    if (boundary) { 
-      if (bufsize >= 1) dst[0] = 0xFFFF; 
-      if (bufsize >= 2) dst[1] = uc; 
-      return 2; 
-    } 
-  } 
-  if (bufsize >= 1) *dst = uc; 
-  return 1; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose( 
-  const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, 
-  utf8proc_int32_t *buffer, utf8proc_ssize_t bufsize, utf8proc_option_t options 
-) { 
-    return utf8proc_decompose_custom(str, strlen, buffer, bufsize, options, NULL, NULL); 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose_custom( 
-  const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, 
-  utf8proc_int32_t *buffer, utf8proc_ssize_t bufsize, utf8proc_option_t options, 
-  utf8proc_custom_func custom_func, void *custom_data 
-) { 
-  /* strlen will be ignored, if UTF8PROC_NULLTERM is set in options */ 
-  utf8proc_ssize_t wpos = 0; 
-  if ((options & UTF8PROC_COMPOSE) && (options & UTF8PROC_DECOMPOSE)) 
-    return UTF8PROC_ERROR_INVALIDOPTS; 
-  if ((options & UTF8PROC_STRIPMARK) && 
-      !(options & UTF8PROC_COMPOSE) && !(options & UTF8PROC_DECOMPOSE)) 
-    return UTF8PROC_ERROR_INVALIDOPTS; 
-  { 
-    utf8proc_int32_t uc; 
-    utf8proc_ssize_t rpos = 0; 
-    utf8proc_ssize_t decomp_result; 
-    int boundclass = UTF8PROC_BOUNDCLASS_START; 
-    while (1) { 
-      if (options & UTF8PROC_NULLTERM) { 
-        rpos += utf8proc_iterate(str + rpos, -1, &uc); 
-        /* checking of return value is not necessary, 
-           as 'uc' is < 0 in case of error */ 
-        if (uc < 0) return UTF8PROC_ERROR_INVALIDUTF8; 
-        if (rpos < 0) return UTF8PROC_ERROR_OVERFLOW; 
-        if (uc == 0) break; 
-      } else { 
-        if (rpos >= strlen) break; 
-        rpos += utf8proc_iterate(str + rpos, strlen - rpos, &uc); 
-        if (uc < 0) return UTF8PROC_ERROR_INVALIDUTF8; 
-      } 
-      if (custom_func != NULL) { 
-        uc = custom_func(uc, custom_data);   /* user-specified custom mapping */ 
-      } 
-      decomp_result = utf8proc_decompose_char( 
-        uc, buffer + wpos, (bufsize > wpos) ? (bufsize - wpos) : 0, options, 
-        &boundclass 
-      ); 
-      if (decomp_result < 0) return decomp_result; 
-      wpos += decomp_result; 
-      /* prohibiting integer overflows due to too long strings: */ 
-      if (wpos < 0 || 
-          wpos > (utf8proc_ssize_t)(SSIZE_MAX/sizeof(utf8proc_int32_t)/2)) 
-        return UTF8PROC_ERROR_OVERFLOW; 
-    } 
-  } 
-  if ((options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) && bufsize >= wpos) { 
-    utf8proc_ssize_t pos = 0; 
-    while (pos < wpos-1) { 
-      utf8proc_int32_t uc1, uc2; 
-      const utf8proc_property_t *property1, *property2; 
-      uc1 = buffer[pos]; 
-      uc2 = buffer[pos+1]; 
-      property1 = unsafe_get_property(uc1); 
-      property2 = unsafe_get_property(uc2); 
-      if (property1->combining_class > property2->combining_class && 
-          property2->combining_class > 0) { 
-        buffer[pos] = uc2; 
-        buffer[pos+1] = uc1; 
-        if (pos > 0) pos--; else pos++; 
-      } else { 
-        pos++; 
-      } 
-    } 
-  } 
-  return wpos; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_normalize_utf32(utf8proc_int32_t *buffer, utf8proc_ssize_t length, utf8proc_option_t options) { 
-  /* UTF8PROC_NULLTERM option will be ignored, 'length' is never ignored */ 
-  if (options & (UTF8PROC_NLF2LS | UTF8PROC_NLF2PS | UTF8PROC_STRIPCC)) { 
-    utf8proc_ssize_t rpos; 
-    utf8proc_ssize_t wpos = 0; 
-    utf8proc_int32_t uc; 
-    for (rpos = 0; rpos < length; rpos++) { 
-      uc = buffer[rpos]; 
-      if (uc == 0x000D && rpos < length-1 && buffer[rpos+1] == 0x000A) rpos++; 
-      if (uc == 0x000A || uc == 0x000D || uc == 0x0085 || 
-          ((options & UTF8PROC_STRIPCC) && (uc == 0x000B || uc == 0x000C))) { 
-        if (options & UTF8PROC_NLF2LS) { 
-          if (options & UTF8PROC_NLF2PS) { 
-            buffer[wpos++] = 0x000A; 
-          } else { 
-            buffer[wpos++] = 0x2028; 
-          } 
-        } else { 
-          if (options & UTF8PROC_NLF2PS) { 
-            buffer[wpos++] = 0x2029; 
-          } else { 
-            buffer[wpos++] = 0x0020; 
-          } 
-        } 
-      } else if ((options & UTF8PROC_STRIPCC) && 
-          (uc < 0x0020 || (uc >= 0x007F && uc < 0x00A0))) { 
-        if (uc == 0x0009) buffer[wpos++] = 0x0020; 
-      } else { 
-        buffer[wpos++] = uc; 
-      } 
-    } 
-    length = wpos; 
-  } 
-  if (options & UTF8PROC_COMPOSE) { 
-    utf8proc_int32_t *starter = NULL; 
-    utf8proc_int32_t current_char; 
-    const utf8proc_property_t *starter_property = NULL, *current_property; 
-    utf8proc_propval_t max_combining_class = -1; 
-    utf8proc_ssize_t rpos; 
-    utf8proc_ssize_t wpos = 0; 
-    utf8proc_int32_t composition; 
-    for (rpos = 0; rpos < length; rpos++) { 
-      current_char = buffer[rpos]; 
-      current_property = unsafe_get_property(current_char); 
-      if (starter && current_property->combining_class > max_combining_class) { 
-        /* combination perhaps possible */ 
-        utf8proc_int32_t hangul_lindex; 
-        utf8proc_int32_t hangul_sindex; 
-        hangul_lindex = *starter - UTF8PROC_HANGUL_LBASE; 
-        if (hangul_lindex >= 0 && hangul_lindex < UTF8PROC_HANGUL_LCOUNT) { 
-          utf8proc_int32_t hangul_vindex; 
-          hangul_vindex = current_char - UTF8PROC_HANGUL_VBASE; 
-          if (hangul_vindex >= 0 && hangul_vindex < UTF8PROC_HANGUL_VCOUNT) { 
-            *starter = UTF8PROC_HANGUL_SBASE + 
-              (hangul_lindex * UTF8PROC_HANGUL_VCOUNT + hangul_vindex) * 
-              UTF8PROC_HANGUL_TCOUNT; 
-            starter_property = NULL; 
-            continue; 
-          } 
-        } 
-        hangul_sindex = *starter - UTF8PROC_HANGUL_SBASE; 
-        if (hangul_sindex >= 0 && hangul_sindex < UTF8PROC_HANGUL_SCOUNT && 
-            (hangul_sindex % UTF8PROC_HANGUL_TCOUNT) == 0) { 
-          utf8proc_int32_t hangul_tindex; 
-          hangul_tindex = current_char - UTF8PROC_HANGUL_TBASE; 
-          if (hangul_tindex >= 0 && hangul_tindex < UTF8PROC_HANGUL_TCOUNT) { 
-            *starter += hangul_tindex; 
-            starter_property = NULL; 
-            continue; 
-          } 
-        } 
-        if (!starter_property) { 
-          starter_property = unsafe_get_property(*starter); 
-        } 
-        if (starter_property->comb_index < 0x8000 && 
-            current_property->comb_index != UINT16_MAX && 
-            current_property->comb_index >= 0x8000) { 
-          int sidx = starter_property->comb_index; 
-          int idx = current_property->comb_index & 0x3FFF; 
-          if (idx >= utf8proc_combinations[sidx] && idx <= utf8proc_combinations[sidx + 1] ) { 
-            idx += sidx + 2 - utf8proc_combinations[sidx]; 
-            if (current_property->comb_index & 0x4000) { 
-              composition = (utf8proc_combinations[idx] << 16) | utf8proc_combinations[idx+1]; 
-            } else 
-              composition = utf8proc_combinations[idx]; 
- 
-            if (composition > 0 && (!(options & UTF8PROC_STABLE) || 
-                !(unsafe_get_property(composition)->comp_exclusion))) { 
-              *starter = composition; 
-              starter_property = NULL; 
-              continue; 
-            } 
-          } 
-        } 
-      } 
-      buffer[wpos] = current_char; 
-      if (current_property->combining_class) { 
-        if (current_property->combining_class > max_combining_class) { 
-          max_combining_class = current_property->combining_class; 
-        } 
-      } else { 
-        starter = buffer + wpos; 
-        starter_property = NULL; 
-        max_combining_class = -1; 
-      } 
-      wpos++; 
-    } 
-    length = wpos; 
-  } 
-  return length; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_reencode(utf8proc_int32_t *buffer, utf8proc_ssize_t length, utf8proc_option_t options) { 
-  /* UTF8PROC_NULLTERM option will be ignored, 'length' is never ignored 
-     ASSERT: 'buffer' has one spare byte of free space at the end! */ 
-  length = utf8proc_normalize_utf32(buffer, length, options); 
-  if (length < 0) return length; 
-  { 
-    utf8proc_ssize_t rpos, wpos = 0; 
-    utf8proc_int32_t uc; 
-    if (options & UTF8PROC_CHARBOUND) { 
-        for (rpos = 0; rpos < length; rpos++) { 
-            uc = buffer[rpos]; 
-            wpos += unsafe_encode_char(uc, ((utf8proc_uint8_t *)buffer) + wpos); 
-        } 
-    } else { 
-        for (rpos = 0; rpos < length; rpos++) { 
-            uc = buffer[rpos]; 
-            wpos += utf8proc_encode_char(uc, ((utf8proc_uint8_t *)buffer) + wpos); 
-        } 
-    } 
-    ((utf8proc_uint8_t *)buffer)[wpos] = 0; 
-    return wpos; 
-  } 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_map( 
-  const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_uint8_t **dstptr, utf8proc_option_t options 
-) { 
-    return utf8proc_map_custom(str, strlen, dstptr, options, NULL, NULL); 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_map_custom( 
-  const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_uint8_t **dstptr, utf8proc_option_t options, 
-  utf8proc_custom_func custom_func, void *custom_data 
-) { 
-  utf8proc_int32_t *buffer; 
-  utf8proc_ssize_t result; 
-  *dstptr = NULL; 
-  result = utf8proc_decompose_custom(str, strlen, NULL, 0, options, custom_func, custom_data); 
-  if (result < 0) return result; 
-  buffer = (utf8proc_int32_t *) malloc(result * sizeof(utf8proc_int32_t) + 1); 
-  if (!buffer) return UTF8PROC_ERROR_NOMEM; 
-  result = utf8proc_decompose_custom(str, strlen, buffer, result, options, custom_func, custom_data); 
-  if (result < 0) { 
-    free(buffer); 
-    return result; 
-  } 
-  result = utf8proc_reencode(buffer, result, options); 
-  if (result < 0) { 
-    free(buffer); 
-    return result; 
-  } 
-  { 
-    utf8proc_int32_t *newptr; 
-    newptr = (utf8proc_int32_t *) realloc(buffer, (size_t)result+1); 
-    if (newptr) buffer = newptr; 
-  } 
-  *dstptr = (utf8proc_uint8_t *)buffer; 
-  return result; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFD(const utf8proc_uint8_t *str) { 
-  utf8proc_uint8_t *retval; 
-  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | 
-    UTF8PROC_DECOMPOSE); 
-  return retval; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFC(const utf8proc_uint8_t *str) { 
-  utf8proc_uint8_t *retval; 
-  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | 
-    UTF8PROC_COMPOSE); 
-  return retval; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKD(const utf8proc_uint8_t *str) { 
-  utf8proc_uint8_t *retval; 
-  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | 
-    UTF8PROC_DECOMPOSE | UTF8PROC_COMPAT); 
-  return retval; 
-} 
- 
-UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKC(const utf8proc_uint8_t *str) { 
-  utf8proc_uint8_t *retval; 
-  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | 
-    UTF8PROC_COMPOSE | UTF8PROC_COMPAT); 
-  return retval; 
-} 
+/* -*- mode: c; c-basic-offset: 2; tab-width: 2; indent-tabs-mode: nil -*- */
+/*
+ *  Copyright (c) 2015 Steven G. Johnson, Jiahao Chen, Peter Colberg, Tony Kelman, Scott P. Jones, and other contributors.
+ *  Copyright (c) 2009 Public Software Group e. V., Berlin, Germany
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining a
+ *  copy of this software and associated documentation files (the "Software"),
+ *  to deal in the Software without restriction, including without limitation
+ *  the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ *  and/or sell copies of the Software, and to permit persons to whom the
+ *  Software is furnished to do so, subject to the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be included in
+ *  all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ *  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ *  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ *  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ *  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ *  DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ *  This library contains derived data from a modified version of the
+ *  Unicode data files.
+ *
+ *  The original data files are available at
+ *  http://www.unicode.org/Public/UNIDATA/
+ *
+ *  Please notice the copyright statement in the file "utf8proc_data.c".
+ */
+
+
+/*
+ *  File name:    utf8proc.c
+ *
+ *  Description:
+ *  Implementation of libutf8proc.
+ */
+
+
+#include "utf8proc.h"
+#include "utf8proc_data.c"
+
+
+UTF8PROC_DLLEXPORT const utf8proc_int8_t utf8proc_utf8class[256] = {
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+  3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+  4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0 };
+
+#define UTF8PROC_HANGUL_SBASE 0xAC00
+#define UTF8PROC_HANGUL_LBASE 0x1100
+#define UTF8PROC_HANGUL_VBASE 0x1161
+#define UTF8PROC_HANGUL_TBASE 0x11A7
+#define UTF8PROC_HANGUL_LCOUNT 19
+#define UTF8PROC_HANGUL_VCOUNT 21
+#define UTF8PROC_HANGUL_TCOUNT 28
+#define UTF8PROC_HANGUL_NCOUNT 588
+#define UTF8PROC_HANGUL_SCOUNT 11172
+/* END is exclusive */
+#define UTF8PROC_HANGUL_L_START  0x1100
+#define UTF8PROC_HANGUL_L_END    0x115A
+#define UTF8PROC_HANGUL_L_FILLER 0x115F
+#define UTF8PROC_HANGUL_V_START  0x1160
+#define UTF8PROC_HANGUL_V_END    0x11A3
+#define UTF8PROC_HANGUL_T_START  0x11A8
+#define UTF8PROC_HANGUL_T_END    0x11FA
+#define UTF8PROC_HANGUL_S_START  0xAC00
+#define UTF8PROC_HANGUL_S_END    0xD7A4
+
+/* Should follow semantic-versioning rules (semver.org) based on API
+   compatibility.  (Note that the shared-library version number will
+   be different, being based on ABI compatibility.): */
+#define STRINGIZEx(x) #x
+#define STRINGIZE(x) STRINGIZEx(x)
+UTF8PROC_DLLEXPORT const char *utf8proc_version(void) {
+  return STRINGIZE(UTF8PROC_VERSION_MAJOR) "." STRINGIZE(UTF8PROC_VERSION_MINOR) "." STRINGIZE(UTF8PROC_VERSION_PATCH) "";
+}
+
+UTF8PROC_DLLEXPORT const char *utf8proc_errmsg(utf8proc_ssize_t errcode) {
+  switch (errcode) {
+    case UTF8PROC_ERROR_NOMEM:
+    return "Memory for processing UTF-8 data could not be allocated.";
+    case UTF8PROC_ERROR_OVERFLOW:
+    return "UTF-8 string is too long to be processed.";
+    case UTF8PROC_ERROR_INVALIDUTF8:
+    return "Invalid UTF-8 string";
+    case UTF8PROC_ERROR_NOTASSIGNED:
+    return "Unassigned Unicode code point found in UTF-8 string.";
+    case UTF8PROC_ERROR_INVALIDOPTS:
+    return "Invalid options for UTF-8 processing chosen.";
+    default:
+    return "An unknown error occurred while processing UTF-8 data.";
+  }
+}
+
+#define utf_cont(ch)  (((ch) & 0xc0) == 0x80)
+UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_iterate(
+  const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_int32_t *dst
+) {
+  utf8proc_uint32_t uc;
+  const utf8proc_uint8_t *end;
+
+  *dst = -1;
+  if (!strlen) return 0;
+  end = str + ((strlen < 0) ? 4 : strlen);
+  uc = *str++;
+  if (uc < 0x80) {
+    *dst = uc;
+    return 1;
+  }
+  // Must be between 0xc2 and 0xf4 inclusive to be valid
+  if ((uc - 0xc2) > (0xf4-0xc2)) return UTF8PROC_ERROR_INVALIDUTF8;
+  if (uc < 0xe0) {         // 2-byte sequence
+     // Must have valid continuation character
+     if (str >= end || !utf_cont(*str)) return UTF8PROC_ERROR_INVALIDUTF8;
+     *dst = ((uc & 0x1f)<<6) | (*str & 0x3f);
+     return 2;
+  }
+  if (uc < 0xf0) {        // 3-byte sequence
+     if ((str + 1 >= end) || !utf_cont(*str) || !utf_cont(str[1]))
+        return UTF8PROC_ERROR_INVALIDUTF8;
+     // Check for surrogate chars
+     if (uc == 0xed && *str > 0x9f)
+         return UTF8PROC_ERROR_INVALIDUTF8;
+     uc = ((uc & 0xf)<<12) | ((*str & 0x3f)<<6) | (str[1] & 0x3f);
+     if (uc < 0x800)
+         return UTF8PROC_ERROR_INVALIDUTF8;
+     *dst = uc;
+     return 3;
+  }
+  // 4-byte sequence
+  // Must have 3 valid continuation characters
+  if ((str + 2 >= end) || !utf_cont(*str) || !utf_cont(str[1]) || !utf_cont(str[2]))
+     return UTF8PROC_ERROR_INVALIDUTF8;
+  // Make sure in correct range (0x10000 - 0x10ffff)
+  if (uc == 0xf0) {
+    if (*str < 0x90) return UTF8PROC_ERROR_INVALIDUTF8;
+  } else if (uc == 0xf4) {
+    if (*str > 0x8f) return UTF8PROC_ERROR_INVALIDUTF8;
+  }
+  *dst = ((uc & 7)<<18) | ((*str & 0x3f)<<12) | ((str[1] & 0x3f)<<6) | (str[2] & 0x3f);
+  return 4;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_codepoint_valid(utf8proc_int32_t uc) {
+    return (((utf8proc_uint32_t)uc)-0xd800 > 0x07ff) && ((utf8proc_uint32_t)uc < 0x110000);
+}
+
+UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_encode_char(utf8proc_int32_t uc, utf8proc_uint8_t *dst) {
+  if (uc < 0x00) {
+    return 0;
+  } else if (uc < 0x80) {
+    dst[0] = (utf8proc_uint8_t) uc;
+    return 1;
+  } else if (uc < 0x800) {
+    dst[0] = (utf8proc_uint8_t)(0xC0 + (uc >> 6));
+    dst[1] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+    return 2;
+  // Note: we allow encoding 0xd800-0xdfff here, so as not to change
+  // the API, however, these are actually invalid in UTF-8
+  } else if (uc < 0x10000) {
+    dst[0] = (utf8proc_uint8_t)(0xE0 + (uc >> 12));
+    dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
+    dst[2] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+    return 3;
+  } else if (uc < 0x110000) {
+    dst[0] = (utf8proc_uint8_t)(0xF0 + (uc >> 18));
+    dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 12) & 0x3F));
+    dst[2] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
+    dst[3] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+    return 4;
+  } else return 0;
+}
+
+/* internal "unsafe" version that does not check whether uc is in range */
+static utf8proc_ssize_t unsafe_encode_char(utf8proc_int32_t uc, utf8proc_uint8_t *dst) {
+   if (uc < 0x00) {
+      return 0;
+   } else if (uc < 0x80) {
+      dst[0] = (utf8proc_uint8_t)uc;
+      return 1;
+   } else if (uc < 0x800) {
+      dst[0] = (utf8proc_uint8_t)(0xC0 + (uc >> 6));
+      dst[1] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+      return 2;
+   } else if (uc == 0xFFFF) {
+       dst[0] = (utf8proc_uint8_t)0xFF;
+       return 1;
+   } else if (uc == 0xFFFE) {
+       dst[0] = (utf8proc_uint8_t)0xFE;
+       return 1;
+   } else if (uc < 0x10000) {
+      dst[0] = (utf8proc_uint8_t)(0xE0 + (uc >> 12));
+      dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
+      dst[2] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+      return 3;
+   } else if (uc < 0x110000) {
+      dst[0] = (utf8proc_uint8_t)(0xF0 + (uc >> 18));
+      dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 12) & 0x3F));
+      dst[2] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
+      dst[3] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+      return 4;
+   } else return 0;
+}
+
+/* internal "unsafe" version that does not check whether uc is in range */
+static const utf8proc_property_t *unsafe_get_property(utf8proc_int32_t uc) {
+  /* ASSERT: uc >= 0 && uc < 0x110000 */
+  return utf8proc_properties + (
+    utf8proc_stage2table[
+      utf8proc_stage1table[uc >> 8] + (uc & 0xFF)
+    ]
+  );
+}
+
+UTF8PROC_DLLEXPORT const utf8proc_property_t *utf8proc_get_property(utf8proc_int32_t uc) {
+  return uc < 0 || uc >= 0x110000 ? utf8proc_properties : unsafe_get_property(uc);
+}
+
+/* return whether there is a grapheme break between boundclasses lbc and tbc
+   (according to the definition of extended grapheme clusters)
+
+  Rule numbering refers to TR29 Version 29 (Unicode 9.0.0):
+  http://www.unicode.org/reports/tr29/tr29-29.html
+
+  CAVEATS:
+   Please note that evaluation of GB10 (grapheme breaks between emoji zwj sequences)
+   and GB 12/13 (regional indicator code points) require knowledge of previous characters
+   and are thus not handled by this function. This may result in an incorrect break before
+   an E_Modifier class codepoint and an incorrectly missing break between two
+   REGIONAL_INDICATOR class code points if such support does not exist in the caller.
+
+   See the special support in grapheme_break_extended, for required bookkeeping by the caller.
+*/
+static utf8proc_bool grapheme_break_simple(int lbc, int tbc) {
+  return
+    (lbc == UTF8PROC_BOUNDCLASS_START) ? true :       // GB1
+    (lbc == UTF8PROC_BOUNDCLASS_CR &&                 // GB3
+     tbc == UTF8PROC_BOUNDCLASS_LF) ? false :         // ---
+    (lbc >= UTF8PROC_BOUNDCLASS_CR && lbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true :  // GB4
+    (tbc >= UTF8PROC_BOUNDCLASS_CR && tbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true :  // GB5
+    (lbc == UTF8PROC_BOUNDCLASS_L &&                  // GB6
+     (tbc == UTF8PROC_BOUNDCLASS_L ||                 // ---
+      tbc == UTF8PROC_BOUNDCLASS_V ||                 // ---
+      tbc == UTF8PROC_BOUNDCLASS_LV ||                // ---
+      tbc == UTF8PROC_BOUNDCLASS_LVT)) ? false :      // ---
+    ((lbc == UTF8PROC_BOUNDCLASS_LV ||                // GB7
+      lbc == UTF8PROC_BOUNDCLASS_V) &&                // ---
+     (tbc == UTF8PROC_BOUNDCLASS_V ||                 // ---
+      tbc == UTF8PROC_BOUNDCLASS_T)) ? false :        // ---
+    ((lbc == UTF8PROC_BOUNDCLASS_LVT ||               // GB8
+      lbc == UTF8PROC_BOUNDCLASS_T) &&                // ---
+     tbc == UTF8PROC_BOUNDCLASS_T) ? false :          // ---
+    (tbc == UTF8PROC_BOUNDCLASS_EXTEND ||             // GB9
+     tbc == UTF8PROC_BOUNDCLASS_ZWJ ||                // ---
+     tbc == UTF8PROC_BOUNDCLASS_SPACINGMARK ||        // GB9a
+     lbc == UTF8PROC_BOUNDCLASS_PREPEND) ? false :    // GB9b
+    ((lbc == UTF8PROC_BOUNDCLASS_E_BASE ||            // GB10 (requires additional handling below)
+      lbc == UTF8PROC_BOUNDCLASS_E_BASE_GAZ) &&       // ----
+     tbc == UTF8PROC_BOUNDCLASS_E_MODIFIER) ? false : // ----
+    (lbc == UTF8PROC_BOUNDCLASS_ZWJ &&                         // GB11
+     (tbc == UTF8PROC_BOUNDCLASS_GLUE_AFTER_ZWJ ||             // ----
+      tbc == UTF8PROC_BOUNDCLASS_E_BASE_GAZ)) ? false :        // ----
+    (lbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR &&          // GB12/13 (requires additional handling below)
+     tbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR) ? false :  // ----
+    true; // GB999
+}
+
+static utf8proc_bool grapheme_break_extended(int lbc, int tbc, utf8proc_int32_t *state)
+{
+  int lbc_override = ((state && *state != UTF8PROC_BOUNDCLASS_START)
+                      ? *state : lbc);
+  utf8proc_bool break_permitted = grapheme_break_simple(lbc_override, tbc);
+  if (state) {
+    // Special support for GB 12/13 made possible by GB999. After two RI
+    // class codepoints we want to force a break. Do this by resetting the
+    // second RI's bound class to UTF8PROC_BOUNDCLASS_OTHER, to force a break
+    // after that character according to GB999 (unless of course such a break is
+    // forbidden by a different rule such as GB9).
+    if (*state == tbc && tbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR)
+      *state = UTF8PROC_BOUNDCLASS_OTHER;
+    // Special support for GB10. Fold any EXTEND codepoints into the previous
+    // boundclass if we're dealing with an emoji base boundclass.
+    else if ((*state == UTF8PROC_BOUNDCLASS_E_BASE      ||
+              *state == UTF8PROC_BOUNDCLASS_E_BASE_GAZ) &&
+             tbc == UTF8PROC_BOUNDCLASS_EXTEND)
+      *state = UTF8PROC_BOUNDCLASS_E_BASE;
+    else
+      *state = tbc;
+  }
+  return break_permitted;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_grapheme_break_stateful(
+    utf8proc_int32_t c1, utf8proc_int32_t c2, utf8proc_int32_t *state) {
+
+  return grapheme_break_extended(utf8proc_get_property(c1)->boundclass,
+                                 utf8proc_get_property(c2)->boundclass,
+                                 state);
+}
+
+
+UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_grapheme_break(
+    utf8proc_int32_t c1, utf8proc_int32_t c2) {
+  return utf8proc_grapheme_break_stateful(c1, c2, NULL);
+}
+
+static utf8proc_int32_t seqindex_decode_entry(const utf8proc_uint16_t **entry)
+{
+  utf8proc_int32_t entry_cp = **entry;
+  if ((entry_cp & 0xF800) == 0xD800) {
+    *entry = *entry + 1;
+    entry_cp = ((entry_cp & 0x03FF) << 10) | (**entry & 0x03FF);
+    entry_cp += 0x10000;
+  }
+  return entry_cp;
+}
+
+static utf8proc_int32_t seqindex_decode_index(const utf8proc_uint32_t seqindex)
+{
+  const utf8proc_uint16_t *entry = &utf8proc_sequences[seqindex];
+  return seqindex_decode_entry(&entry);
+}
+
+static utf8proc_ssize_t seqindex_write_char_decomposed(utf8proc_uint16_t seqindex, utf8proc_int32_t *dst, utf8proc_ssize_t bufsize, utf8proc_option_t options, int *last_boundclass) {
+  utf8proc_ssize_t written = 0;
+  const utf8proc_uint16_t *entry = &utf8proc_sequences[seqindex & 0x1FFF];
+  int len = seqindex >> 13;
+  if (len >= 7) {
+    len = *entry;
+    entry++;
+  }
+  for (; len >= 0; entry++, len--) {
+    utf8proc_int32_t entry_cp = seqindex_decode_entry(&entry);
+
+    written += utf8proc_decompose_char(entry_cp, dst+written,
+      (bufsize > written) ? (bufsize - written) : 0, options,
+    last_boundclass);
+    if (written < 0) return UTF8PROC_ERROR_OVERFLOW;
+  }
+  return written;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_tolower(utf8proc_int32_t c)
+{
+  utf8proc_int32_t cl = utf8proc_get_property(c)->lowercase_seqindex;
+  return cl != UINT16_MAX ? seqindex_decode_index(cl) : c;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_toupper(utf8proc_int32_t c)
+{
+  utf8proc_int32_t cu = utf8proc_get_property(c)->uppercase_seqindex;
+  return cu != UINT16_MAX ? seqindex_decode_index(cu) : c;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_totitle(utf8proc_int32_t c)
+{
+  utf8proc_int32_t cu = utf8proc_get_property(c)->titlecase_seqindex;
+  return cu != UINT16_MAX ? seqindex_decode_index(cu) : c;
+}
+
+/* return a character width analogous to wcwidth (except portable and
+   hopefully less buggy than most system wcwidth functions). */
+UTF8PROC_DLLEXPORT int utf8proc_charwidth(utf8proc_int32_t c) {
+  return utf8proc_get_property(c)->charwidth;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_category_t utf8proc_category(utf8proc_int32_t c) {
+  return utf8proc_get_property(c)->category;
+}
+
+UTF8PROC_DLLEXPORT const char *utf8proc_category_string(utf8proc_int32_t c) {
+  static const char s[][3] = {"Cn","Lu","Ll","Lt","Lm","Lo","Mn","Mc","Me","Nd","Nl","No","Pc","Pd","Ps","Pe","Pi","Pf","Po","Sm","Sc","Sk","So","Zs","Zl","Zp","Cc","Cf","Cs","Co"};
+  return s[utf8proc_category(c)];
+}
+
+#define utf8proc_decompose_lump(replacement_uc) \
+  return utf8proc_decompose_char((replacement_uc), dst, bufsize, \
+  options & ~UTF8PROC_LUMP, last_boundclass)
+
+UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose_char(utf8proc_int32_t uc, utf8proc_int32_t *dst, utf8proc_ssize_t bufsize, utf8proc_option_t options, int *last_boundclass) {
+  const utf8proc_property_t *property;
+  utf8proc_propval_t category;
+  utf8proc_int32_t hangul_sindex;
+  if (uc < 0 || uc >= 0x110000) return UTF8PROC_ERROR_NOTASSIGNED;
+  property = unsafe_get_property(uc);
+  category = property->category;
+  hangul_sindex = uc - UTF8PROC_HANGUL_SBASE;
+  if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) {
+    if (hangul_sindex >= 0 && hangul_sindex < UTF8PROC_HANGUL_SCOUNT) {
+      utf8proc_int32_t hangul_tindex;
+      if (bufsize >= 1) {
+        dst[0] = UTF8PROC_HANGUL_LBASE +
+          hangul_sindex / UTF8PROC_HANGUL_NCOUNT;
+        if (bufsize >= 2) dst[1] = UTF8PROC_HANGUL_VBASE +
+          (hangul_sindex % UTF8PROC_HANGUL_NCOUNT) / UTF8PROC_HANGUL_TCOUNT;
+      }
+      hangul_tindex = hangul_sindex % UTF8PROC_HANGUL_TCOUNT;
+      if (!hangul_tindex) return 2;
+      if (bufsize >= 3) dst[2] = UTF8PROC_HANGUL_TBASE + hangul_tindex;
+      return 3;
+    }
+  }
+  if (options & UTF8PROC_REJECTNA) {
+    if (!category) return UTF8PROC_ERROR_NOTASSIGNED;
+  }
+  if (options & UTF8PROC_IGNORE) {
+    if (property->ignorable) return 0;
+  }
+  if (options & UTF8PROC_LUMP) {
+    if (category == UTF8PROC_CATEGORY_ZS) utf8proc_decompose_lump(0x0020);
+    if (uc == 0x2018 || uc == 0x2019 || uc == 0x02BC || uc == 0x02C8)
+      utf8proc_decompose_lump(0x0027);
+    if (category == UTF8PROC_CATEGORY_PD || uc == 0x2212)
+      utf8proc_decompose_lump(0x002D);
+    if (uc == 0x2044 || uc == 0x2215) utf8proc_decompose_lump(0x002F);
+    if (uc == 0x2236) utf8proc_decompose_lump(0x003A);
+    if (uc == 0x2039 || uc == 0x2329 || uc == 0x3008)
+      utf8proc_decompose_lump(0x003C);
+    if (uc == 0x203A || uc == 0x232A || uc == 0x3009)
+      utf8proc_decompose_lump(0x003E);
+    if (uc == 0x2216) utf8proc_decompose_lump(0x005C);
+    if (uc == 0x02C4 || uc == 0x02C6 || uc == 0x2038 || uc == 0x2303)
+      utf8proc_decompose_lump(0x005E);
+    if (category == UTF8PROC_CATEGORY_PC || uc == 0x02CD)
+      utf8proc_decompose_lump(0x005F);
+    if (uc == 0x02CB) utf8proc_decompose_lump(0x0060);
+    if (uc == 0x2223) utf8proc_decompose_lump(0x007C);
+    if (uc == 0x223C) utf8proc_decompose_lump(0x007E);
+    if ((options & UTF8PROC_NLF2LS) && (options & UTF8PROC_NLF2PS)) {
+      if (category == UTF8PROC_CATEGORY_ZL ||
+          category == UTF8PROC_CATEGORY_ZP)
+        utf8proc_decompose_lump(0x000A);
+    }
+  }
+  if (options & UTF8PROC_STRIPMARK) {
+    if (category == UTF8PROC_CATEGORY_MN ||
+      category == UTF8PROC_CATEGORY_MC ||
+      category == UTF8PROC_CATEGORY_ME) return 0;
+  }
+  if (options & UTF8PROC_CASEFOLD) {
+    if (property->casefold_seqindex != UINT16_MAX) {
+      return seqindex_write_char_decomposed(property->casefold_seqindex, dst, bufsize, options, last_boundclass);
+    }
+  }
+  if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) {
+    if (property->decomp_seqindex != UINT16_MAX &&
+        (!property->decomp_type || (options & UTF8PROC_COMPAT))) {
+      return seqindex_write_char_decomposed(property->decomp_seqindex, dst, bufsize, options, last_boundclass);
+    }
+  }
+  if (options & UTF8PROC_CHARBOUND) {
+    utf8proc_bool boundary;
+    int tbc = property->boundclass;
+    boundary = grapheme_break_extended(*last_boundclass, tbc, last_boundclass);
+    if (boundary) {
+      if (bufsize >= 1) dst[0] = 0xFFFF;
+      if (bufsize >= 2) dst[1] = uc;
+      return 2;
+    }
+  }
+  if (bufsize >= 1) *dst = uc;
+  return 1;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose(
+  const utf8proc_uint8_t *str, utf8proc_ssize_t strlen,
+  utf8proc_int32_t *buffer, utf8proc_ssize_t bufsize, utf8proc_option_t options
+) {
+    return utf8proc_decompose_custom(str, strlen, buffer, bufsize, options, NULL, NULL);
+}
+
+UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose_custom(
+  const utf8proc_uint8_t *str, utf8proc_ssize_t strlen,
+  utf8proc_int32_t *buffer, utf8proc_ssize_t bufsize, utf8proc_option_t options,
+  utf8proc_custom_func custom_func, void *custom_data
+) {
+  /* strlen will be ignored, if UTF8PROC_NULLTERM is set in options */
+  utf8proc_ssize_t wpos = 0;
+  if ((options & UTF8PROC_COMPOSE) && (options & UTF8PROC_DECOMPOSE))
+    return UTF8PROC_ERROR_INVALIDOPTS;
+  if ((options & UTF8PROC_STRIPMARK) &&
+      !(options & UTF8PROC_COMPOSE) && !(options & UTF8PROC_DECOMPOSE))
+    return UTF8PROC_ERROR_INVALIDOPTS;
+  {
+    utf8proc_int32_t uc;
+    utf8proc_ssize_t rpos = 0;
+    utf8proc_ssize_t decomp_result;
+    int boundclass = UTF8PROC_BOUNDCLASS_START;
+    while (1) {
+      if (options & UTF8PROC_NULLTERM) {
+        rpos += utf8proc_iterate(str + rpos, -1, &uc);
+        /* checking of return value is not necessary,
+           as 'uc' is < 0 in case of error */
+        if (uc < 0) return UTF8PROC_ERROR_INVALIDUTF8;
+        if (rpos < 0) return UTF8PROC_ERROR_OVERFLOW;
+        if (uc == 0) break;
+      } else {
+        if (rpos >= strlen) break;
+        rpos += utf8proc_iterate(str + rpos, strlen - rpos, &uc);
+        if (uc < 0) return UTF8PROC_ERROR_INVALIDUTF8;
+      }
+      if (custom_func != NULL) {
+        uc = custom_func(uc, custom_data);   /* user-specified custom mapping */
+      }
+      decomp_result = utf8proc_decompose_char(
+        uc, buffer + wpos, (bufsize > wpos) ? (bufsize - wpos) : 0, options,
+        &boundclass
+      );
+      if (decomp_result < 0) return decomp_result;
+      wpos += decomp_result;
+      /* prohibiting integer overflows due to too long strings: */
+      if (wpos < 0 ||
+          wpos > (utf8proc_ssize_t)(SSIZE_MAX/sizeof(utf8proc_int32_t)/2))
+        return UTF8PROC_ERROR_OVERFLOW;
+    }
+  }
+  if ((options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) && bufsize >= wpos) {
+    utf8proc_ssize_t pos = 0;
+    while (pos < wpos-1) {
+      utf8proc_int32_t uc1, uc2;
+      const utf8proc_property_t *property1, *property2;
+      uc1 = buffer[pos];
+      uc2 = buffer[pos+1];
+      property1 = unsafe_get_property(uc1);
+      property2 = unsafe_get_property(uc2);
+      if (property1->combining_class > property2->combining_class &&
+          property2->combining_class > 0) {
+        buffer[pos] = uc2;
+        buffer[pos+1] = uc1;
+        if (pos > 0) pos--; else pos++;
+      } else {
+        pos++;
+      }
+    }
+  }
+  return wpos;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_normalize_utf32(utf8proc_int32_t *buffer, utf8proc_ssize_t length, utf8proc_option_t options) {
+  /* UTF8PROC_NULLTERM option will be ignored, 'length' is never ignored */
+  if (options & (UTF8PROC_NLF2LS | UTF8PROC_NLF2PS | UTF8PROC_STRIPCC)) {
+    utf8proc_ssize_t rpos;
+    utf8proc_ssize_t wpos = 0;
+    utf8proc_int32_t uc;
+    for (rpos = 0; rpos < length; rpos++) {
+      uc = buffer[rpos];
+      if (uc == 0x000D && rpos < length-1 && buffer[rpos+1] == 0x000A) rpos++;
+      if (uc == 0x000A || uc == 0x000D || uc == 0x0085 ||
+          ((options & UTF8PROC_STRIPCC) && (uc == 0x000B || uc == 0x000C))) {
+        if (options & UTF8PROC_NLF2LS) {
+          if (options & UTF8PROC_NLF2PS) {
+            buffer[wpos++] = 0x000A;
+          } else {
+            buffer[wpos++] = 0x2028;
+          }
+        } else {
+          if (options & UTF8PROC_NLF2PS) {
+            buffer[wpos++] = 0x2029;
+          } else {
+            buffer[wpos++] = 0x0020;
+          }
+        }
+      } else if ((options & UTF8PROC_STRIPCC) &&
+          (uc < 0x0020 || (uc >= 0x007F && uc < 0x00A0))) {
+        if (uc == 0x0009) buffer[wpos++] = 0x0020;
+      } else {
+        buffer[wpos++] = uc;
+      }
+    }
+    length = wpos;
+  }
+  if (options & UTF8PROC_COMPOSE) {
+    utf8proc_int32_t *starter = NULL;
+    utf8proc_int32_t current_char;
+    const utf8proc_property_t *starter_property = NULL, *current_property;
+    utf8proc_propval_t max_combining_class = -1;
+    utf8proc_ssize_t rpos;
+    utf8proc_ssize_t wpos = 0;
+    utf8proc_int32_t composition;
+    for (rpos = 0; rpos < length; rpos++) {
+      current_char = buffer[rpos];
+      current_property = unsafe_get_property(current_char);
+      if (starter && current_property->combining_class > max_combining_class) {
+        /* combination perhaps possible */
+        utf8proc_int32_t hangul_lindex;
+        utf8proc_int32_t hangul_sindex;
+        hangul_lindex = *starter - UTF8PROC_HANGUL_LBASE;
+        if (hangul_lindex >= 0 && hangul_lindex < UTF8PROC_HANGUL_LCOUNT) {
+          utf8proc_int32_t hangul_vindex;
+          hangul_vindex = current_char - UTF8PROC_HANGUL_VBASE;
+          if (hangul_vindex >= 0 && hangul_vindex < UTF8PROC_HANGUL_VCOUNT) {
+            *starter = UTF8PROC_HANGUL_SBASE +
+              (hangul_lindex * UTF8PROC_HANGUL_VCOUNT + hangul_vindex) *
+              UTF8PROC_HANGUL_TCOUNT;
+            starter_property = NULL;
+            continue;
+          }
+        }
+        hangul_sindex = *starter - UTF8PROC_HANGUL_SBASE;
+        if (hangul_sindex >= 0 && hangul_sindex < UTF8PROC_HANGUL_SCOUNT &&
+            (hangul_sindex % UTF8PROC_HANGUL_TCOUNT) == 0) {
+          utf8proc_int32_t hangul_tindex;
+          hangul_tindex = current_char - UTF8PROC_HANGUL_TBASE;
+          if (hangul_tindex >= 0 && hangul_tindex < UTF8PROC_HANGUL_TCOUNT) {
+            *starter += hangul_tindex;
+            starter_property = NULL;
+            continue;
+          }
+        }
+        if (!starter_property) {
+          starter_property = unsafe_get_property(*starter);
+        }
+        if (starter_property->comb_index < 0x8000 &&
+            current_property->comb_index != UINT16_MAX &&
+            current_property->comb_index >= 0x8000) {
+          int sidx = starter_property->comb_index;
+          int idx = current_property->comb_index & 0x3FFF;
+          if (idx >= utf8proc_combinations[sidx] && idx <= utf8proc_combinations[sidx + 1] ) {
+            idx += sidx + 2 - utf8proc_combinations[sidx];
+            if (current_property->comb_index & 0x4000) {
+              composition = (utf8proc_combinations[idx] << 16) | utf8proc_combinations[idx+1];
+            } else
+              composition = utf8proc_combinations[idx];
+
+            if (composition > 0 && (!(options & UTF8PROC_STABLE) ||
+                !(unsafe_get_property(composition)->comp_exclusion))) {
+              *starter = composition;
+              starter_property = NULL;
+              continue;
+            }
+          }
+        }
+      }
+      buffer[wpos] = current_char;
+      if (current_property->combining_class) {
+        if (current_property->combining_class > max_combining_class) {
+          max_combining_class = current_property->combining_class;
+        }
+      } else {
+        starter = buffer + wpos;
+        starter_property = NULL;
+        max_combining_class = -1;
+      }
+      wpos++;
+    }
+    length = wpos;
+  }
+  return length;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_reencode(utf8proc_int32_t *buffer, utf8proc_ssize_t length, utf8proc_option_t options) {
+  /* UTF8PROC_NULLTERM option will be ignored, 'length' is never ignored
+     ASSERT: 'buffer' has one spare byte of free space at the end! */
+  length = utf8proc_normalize_utf32(buffer, length, options);
+  if (length < 0) return length;
+  {
+    utf8proc_ssize_t rpos, wpos = 0;
+    utf8proc_int32_t uc;
+    if (options & UTF8PROC_CHARBOUND) {
+        for (rpos = 0; rpos < length; rpos++) {
+            uc = buffer[rpos];
+            wpos += unsafe_encode_char(uc, ((utf8proc_uint8_t *)buffer) + wpos);
+        }
+    } else {
+        for (rpos = 0; rpos < length; rpos++) {
+            uc = buffer[rpos];
+            wpos += utf8proc_encode_char(uc, ((utf8proc_uint8_t *)buffer) + wpos);
+        }
+    }
+    ((utf8proc_uint8_t *)buffer)[wpos] = 0;
+    return wpos;
+  }
+}
+
+UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_map(
+  const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_uint8_t **dstptr, utf8proc_option_t options
+) {
+    return utf8proc_map_custom(str, strlen, dstptr, options, NULL, NULL);
+}
+
+UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_map_custom(
+  const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_uint8_t **dstptr, utf8proc_option_t options,
+  utf8proc_custom_func custom_func, void *custom_data
+) {
+  utf8proc_int32_t *buffer;
+  utf8proc_ssize_t result;
+  *dstptr = NULL;
+  result = utf8proc_decompose_custom(str, strlen, NULL, 0, options, custom_func, custom_data);
+  if (result < 0) return result;
+  buffer = (utf8proc_int32_t *) malloc(result * sizeof(utf8proc_int32_t) + 1);
+  if (!buffer) return UTF8PROC_ERROR_NOMEM;
+  result = utf8proc_decompose_custom(str, strlen, buffer, result, options, custom_func, custom_data);
+  if (result < 0) {
+    free(buffer);
+    return result;
+  }
+  result = utf8proc_reencode(buffer, result, options);
+  if (result < 0) {
+    free(buffer);
+    return result;
+  }
+  {
+    utf8proc_int32_t *newptr;
+    newptr = (utf8proc_int32_t *) realloc(buffer, (size_t)result+1);
+    if (newptr) buffer = newptr;
+  }
+  *dstptr = (utf8proc_uint8_t *)buffer;
+  return result;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFD(const utf8proc_uint8_t *str) {
+  utf8proc_uint8_t *retval;
+  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
+    UTF8PROC_DECOMPOSE);
+  return retval;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFC(const utf8proc_uint8_t *str) {
+  utf8proc_uint8_t *retval;
+  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
+    UTF8PROC_COMPOSE);
+  return retval;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKD(const utf8proc_uint8_t *str) {
+  utf8proc_uint8_t *retval;
+  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
+    UTF8PROC_DECOMPOSE | UTF8PROC_COMPAT);
+  return retval;
+}
+
+UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKC(const utf8proc_uint8_t *str) {
+  utf8proc_uint8_t *retval;
+  utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
+    UTF8PROC_COMPOSE | UTF8PROC_COMPAT);
+  return retval;
+}