265
+ − 1 /* -*- mode: c; c-basic-offset: 2; tab-width: 2; indent-tabs-mode: nil -*- */
+ − 2 /*
+ − 3 * Copyright (c) 2014-2021 Steven G. Johnson, Jiahao Chen, Peter Colberg, Tony Kelman, Scott P. Jones, and other contributors.
+ − 4 * Copyright (c) 2009 Public Software Group e. V., Berlin, Germany
+ − 5 *
+ − 6 * Permission is hereby granted, free of charge, to any person obtaining a
+ − 7 * copy of this software and associated documentation files (the "Software"),
+ − 8 * to deal in the Software without restriction, including without limitation
+ − 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ − 10 * and/or sell copies of the Software, and to permit persons to whom the
+ − 11 * Software is furnished to do so, subject to the following conditions:
+ − 12 *
+ − 13 * The above copyright notice and this permission notice shall be included in
+ − 14 * all copies or substantial portions of the Software.
+ − 15 *
+ − 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ − 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ − 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ − 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ − 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ − 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ − 22 * DEALINGS IN THE SOFTWARE.
+ − 23 */
+ − 24
+ − 25 /*
+ − 26 * This library contains derived data from a modified version of the
+ − 27 * Unicode data files.
+ − 28 *
+ − 29 * The original data files are available at
+ − 30 * https://www.unicode.org/Public/UNIDATA/
+ − 31 *
+ − 32 * Please notice the copyright statement in the file "utf8proc_data.c".
+ − 33 */
+ − 34
+ − 35
+ − 36 /*
+ − 37 * File name: utf8proc.c
+ − 38 *
+ − 39 * Description:
+ − 40 * Implementation of libutf8proc.
+ − 41 */
+ − 42
+ − 43
+ − 44 #include "utf8proc.h"
+ − 45
+ − 46 #ifndef SSIZE_MAX
+ − 47 #define SSIZE_MAX ((size_t)SIZE_MAX/2)
+ − 48 #endif
+ − 49 #ifndef UINT16_MAX
+ − 50 # define UINT16_MAX 65535U
+ − 51 #endif
+ − 52
+ − 53 #include "utf8proc_data.c"
+ − 54
+ − 55
+ − 56 UTF8PROC_DLLEXPORT const utf8proc_int8_t utf8proc_utf8class[256] = {
+ − 57 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ − 58 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ − 59 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ − 60 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ − 61 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ − 62 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ − 63 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ − 64 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ − 65 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ − 66 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ − 67 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ − 68 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ − 69 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ − 70 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ − 71 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ − 72 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0 };
+ − 73
+ − 74 #define UTF8PROC_HANGUL_SBASE 0xAC00
+ − 75 #define UTF8PROC_HANGUL_LBASE 0x1100
+ − 76 #define UTF8PROC_HANGUL_VBASE 0x1161
+ − 77 #define UTF8PROC_HANGUL_TBASE 0x11A7
+ − 78 #define UTF8PROC_HANGUL_LCOUNT 19
+ − 79 #define UTF8PROC_HANGUL_VCOUNT 21
+ − 80 #define UTF8PROC_HANGUL_TCOUNT 28
+ − 81 #define UTF8PROC_HANGUL_NCOUNT 588
+ − 82 #define UTF8PROC_HANGUL_SCOUNT 11172
+ − 83 /* END is exclusive */
+ − 84 #define UTF8PROC_HANGUL_L_START 0x1100
+ − 85 #define UTF8PROC_HANGUL_L_END 0x115A
+ − 86 #define UTF8PROC_HANGUL_L_FILLER 0x115F
+ − 87 #define UTF8PROC_HANGUL_V_START 0x1160
+ − 88 #define UTF8PROC_HANGUL_V_END 0x11A3
+ − 89 #define UTF8PROC_HANGUL_T_START 0x11A8
+ − 90 #define UTF8PROC_HANGUL_T_END 0x11FA
+ − 91 #define UTF8PROC_HANGUL_S_START 0xAC00
+ − 92 #define UTF8PROC_HANGUL_S_END 0xD7A4
+ − 93
+ − 94 /* Should follow semantic-versioning rules (semver.org) based on API
+ − 95 compatibility. (Note that the shared-library version number will
+ − 96 be different, being based on ABI compatibility.): */
+ − 97 #define STRINGIZEx(x) #x
+ − 98 #define STRINGIZE(x) STRINGIZEx(x)
+ − 99 UTF8PROC_DLLEXPORT const char *utf8proc_version(void) {
+ − 100 return STRINGIZE(UTF8PROC_VERSION_MAJOR) "." STRINGIZE(UTF8PROC_VERSION_MINOR) "." STRINGIZE(UTF8PROC_VERSION_PATCH) "";
+ − 101 }
+ − 102
+ − 103 UTF8PROC_DLLEXPORT const char *utf8proc_unicode_version(void) {
+ − 104 return "15.1.0";
+ − 105 }
+ − 106
+ − 107 UTF8PROC_DLLEXPORT const char *utf8proc_errmsg(utf8proc_ssize_t errcode) {
+ − 108 switch (errcode) {
+ − 109 case UTF8PROC_ERROR_NOMEM:
+ − 110 return "Memory for processing UTF-8 data could not be allocated.";
+ − 111 case UTF8PROC_ERROR_OVERFLOW:
+ − 112 return "UTF-8 string is too long to be processed.";
+ − 113 case UTF8PROC_ERROR_INVALIDUTF8:
+ − 114 return "Invalid UTF-8 string";
+ − 115 case UTF8PROC_ERROR_NOTASSIGNED:
+ − 116 return "Unassigned Unicode code point found in UTF-8 string.";
+ − 117 case UTF8PROC_ERROR_INVALIDOPTS:
+ − 118 return "Invalid options for UTF-8 processing chosen.";
+ − 119 default:
+ − 120 return "An unknown error occurred while processing UTF-8 data.";
+ − 121 }
+ − 122 }
+ − 123
+ − 124 #define utf_cont(ch) (((ch) & 0xc0) == 0x80)
+ − 125 UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_iterate(
+ − 126 const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_int32_t *dst
+ − 127 ) {
+ − 128 utf8proc_int32_t uc;
+ − 129 const utf8proc_uint8_t *end;
+ − 130
+ − 131 *dst = -1;
+ − 132 if (!strlen) return 0;
+ − 133 end = str + ((strlen < 0) ? 4 : strlen);
+ − 134 uc = *str++;
+ − 135 if (uc < 0x80) {
+ − 136 *dst = uc;
+ − 137 return 1;
+ − 138 }
+ − 139 // Must be between 0xc2 and 0xf4 inclusive to be valid
+ − 140 if ((utf8proc_uint32_t)(uc - 0xc2) > (0xf4-0xc2)) return UTF8PROC_ERROR_INVALIDUTF8;
+ − 141 if (uc < 0xe0) { // 2-byte sequence
+ − 142 // Must have valid continuation character
+ − 143 if (str >= end || !utf_cont(*str)) return UTF8PROC_ERROR_INVALIDUTF8;
+ − 144 *dst = ((uc & 0x1f)<<6) | (*str & 0x3f);
+ − 145 return 2;
+ − 146 }
+ − 147 if (uc < 0xf0) { // 3-byte sequence
+ − 148 if ((str + 1 >= end) || !utf_cont(*str) || !utf_cont(str[1]))
+ − 149 return UTF8PROC_ERROR_INVALIDUTF8;
+ − 150 // Check for surrogate chars
+ − 151 if (uc == 0xed && *str > 0x9f)
+ − 152 return UTF8PROC_ERROR_INVALIDUTF8;
+ − 153 uc = ((uc & 0xf)<<12) | ((*str & 0x3f)<<6) | (str[1] & 0x3f);
+ − 154 if (uc < 0x800)
+ − 155 return UTF8PROC_ERROR_INVALIDUTF8;
+ − 156 *dst = uc;
+ − 157 return 3;
+ − 158 }
+ − 159 // 4-byte sequence
+ − 160 // Must have 3 valid continuation characters
+ − 161 if ((str + 2 >= end) || !utf_cont(*str) || !utf_cont(str[1]) || !utf_cont(str[2]))
+ − 162 return UTF8PROC_ERROR_INVALIDUTF8;
+ − 163 // Make sure in correct range (0x10000 - 0x10ffff)
+ − 164 if (uc == 0xf0) {
+ − 165 if (*str < 0x90) return UTF8PROC_ERROR_INVALIDUTF8;
+ − 166 } else if (uc == 0xf4) {
+ − 167 if (*str > 0x8f) return UTF8PROC_ERROR_INVALIDUTF8;
+ − 168 }
+ − 169 *dst = ((uc & 7)<<18) | ((*str & 0x3f)<<12) | ((str[1] & 0x3f)<<6) | (str[2] & 0x3f);
+ − 170 return 4;
+ − 171 }
+ − 172
+ − 173 UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_codepoint_valid(utf8proc_int32_t uc) {
+ − 174 return (((utf8proc_uint32_t)uc)-0xd800 > 0x07ff) && ((utf8proc_uint32_t)uc < 0x110000);
+ − 175 }
+ − 176
+ − 177 UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_encode_char(utf8proc_int32_t uc, utf8proc_uint8_t *dst) {
+ − 178 if (uc < 0x00) {
+ − 179 return 0;
+ − 180 } else if (uc < 0x80) {
+ − 181 dst[0] = (utf8proc_uint8_t) uc;
+ − 182 return 1;
+ − 183 } else if (uc < 0x800) {
+ − 184 dst[0] = (utf8proc_uint8_t)(0xC0 + (uc >> 6));
+ − 185 dst[1] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+ − 186 return 2;
+ − 187 // Note: we allow encoding 0xd800-0xdfff here, so as not to change
+ − 188 // the API, however, these are actually invalid in UTF-8
+ − 189 } else if (uc < 0x10000) {
+ − 190 dst[0] = (utf8proc_uint8_t)(0xE0 + (uc >> 12));
+ − 191 dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
+ − 192 dst[2] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+ − 193 return 3;
+ − 194 } else if (uc < 0x110000) {
+ − 195 dst[0] = (utf8proc_uint8_t)(0xF0 + (uc >> 18));
+ − 196 dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 12) & 0x3F));
+ − 197 dst[2] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
+ − 198 dst[3] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+ − 199 return 4;
+ − 200 } else return 0;
+ − 201 }
+ − 202
+ − 203 /* internal version used for inserting 0xff bytes between graphemes */
+ − 204 static utf8proc_ssize_t charbound_encode_char(utf8proc_int32_t uc, utf8proc_uint8_t *dst) {
+ − 205 if (uc < 0x00) {
+ − 206 if (uc == -1) { /* internal value used for grapheme breaks */
+ − 207 dst[0] = (utf8proc_uint8_t)0xFF;
+ − 208 return 1;
+ − 209 }
+ − 210 return 0;
+ − 211 } else if (uc < 0x80) {
+ − 212 dst[0] = (utf8proc_uint8_t)uc;
+ − 213 return 1;
+ − 214 } else if (uc < 0x800) {
+ − 215 dst[0] = (utf8proc_uint8_t)(0xC0 + (uc >> 6));
+ − 216 dst[1] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+ − 217 return 2;
+ − 218 } else if (uc < 0x10000) {
+ − 219 dst[0] = (utf8proc_uint8_t)(0xE0 + (uc >> 12));
+ − 220 dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
+ − 221 dst[2] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+ − 222 return 3;
+ − 223 } else if (uc < 0x110000) {
+ − 224 dst[0] = (utf8proc_uint8_t)(0xF0 + (uc >> 18));
+ − 225 dst[1] = (utf8proc_uint8_t)(0x80 + ((uc >> 12) & 0x3F));
+ − 226 dst[2] = (utf8proc_uint8_t)(0x80 + ((uc >> 6) & 0x3F));
+ − 227 dst[3] = (utf8proc_uint8_t)(0x80 + (uc & 0x3F));
+ − 228 return 4;
+ − 229 } else return 0;
+ − 230 }
+ − 231
+ − 232 /* internal "unsafe" version that does not check whether uc is in range */
+ − 233 static const utf8proc_property_t *unsafe_get_property(utf8proc_int32_t uc) {
+ − 234 /* ASSERT: uc >= 0 && uc < 0x110000 */
+ − 235 return utf8proc_properties + (
+ − 236 utf8proc_stage2table[
+ − 237 utf8proc_stage1table[uc >> 8] + (uc & 0xFF)
+ − 238 ]
+ − 239 );
+ − 240 }
+ − 241
+ − 242 UTF8PROC_DLLEXPORT const utf8proc_property_t *utf8proc_get_property(utf8proc_int32_t uc) {
+ − 243 return uc < 0 || uc >= 0x110000 ? utf8proc_properties : unsafe_get_property(uc);
+ − 244 }
+ − 245
+ − 246 /* return whether there is a grapheme break between boundclasses lbc and tbc
+ − 247 (according to the definition of extended grapheme clusters)
+ − 248
+ − 249 Rule numbering refers to TR29 Version 29 (Unicode 9.0.0):
+ − 250 http://www.unicode.org/reports/tr29/tr29-29.html
+ − 251
+ − 252 CAVEATS:
+ − 253 Please note that evaluation of GB10 (grapheme breaks between emoji zwj sequences)
+ − 254 and GB 12/13 (regional indicator code points) require knowledge of previous characters
+ − 255 and are thus not handled by this function. This may result in an incorrect break before
+ − 256 an E_Modifier class codepoint and an incorrectly missing break between two
+ − 257 REGIONAL_INDICATOR class code points if such support does not exist in the caller.
+ − 258
+ − 259 See the special support in grapheme_break_extended, for required bookkeeping by the caller.
+ − 260 */
+ − 261 static utf8proc_bool grapheme_break_simple(int lbc, int tbc) {
+ − 262 return
+ − 263 (lbc == UTF8PROC_BOUNDCLASS_START) ? true : // GB1
+ − 264 (lbc == UTF8PROC_BOUNDCLASS_CR && // GB3
+ − 265 tbc == UTF8PROC_BOUNDCLASS_LF) ? false : // ---
+ − 266 (lbc >= UTF8PROC_BOUNDCLASS_CR && lbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true : // GB4
+ − 267 (tbc >= UTF8PROC_BOUNDCLASS_CR && tbc <= UTF8PROC_BOUNDCLASS_CONTROL) ? true : // GB5
+ − 268 (lbc == UTF8PROC_BOUNDCLASS_L && // GB6
+ − 269 (tbc == UTF8PROC_BOUNDCLASS_L || // ---
+ − 270 tbc == UTF8PROC_BOUNDCLASS_V || // ---
+ − 271 tbc == UTF8PROC_BOUNDCLASS_LV || // ---
+ − 272 tbc == UTF8PROC_BOUNDCLASS_LVT)) ? false : // ---
+ − 273 ((lbc == UTF8PROC_BOUNDCLASS_LV || // GB7
+ − 274 lbc == UTF8PROC_BOUNDCLASS_V) && // ---
+ − 275 (tbc == UTF8PROC_BOUNDCLASS_V || // ---
+ − 276 tbc == UTF8PROC_BOUNDCLASS_T)) ? false : // ---
+ − 277 ((lbc == UTF8PROC_BOUNDCLASS_LVT || // GB8
+ − 278 lbc == UTF8PROC_BOUNDCLASS_T) && // ---
+ − 279 tbc == UTF8PROC_BOUNDCLASS_T) ? false : // ---
+ − 280 (tbc == UTF8PROC_BOUNDCLASS_EXTEND || // GB9
+ − 281 tbc == UTF8PROC_BOUNDCLASS_ZWJ || // ---
+ − 282 tbc == UTF8PROC_BOUNDCLASS_SPACINGMARK || // GB9a
+ − 283 lbc == UTF8PROC_BOUNDCLASS_PREPEND) ? false : // GB9b
+ − 284 (lbc == UTF8PROC_BOUNDCLASS_E_ZWG && // GB11 (requires additional handling below)
+ − 285 tbc == UTF8PROC_BOUNDCLASS_EXTENDED_PICTOGRAPHIC) ? false : // ----
+ − 286 (lbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR && // GB12/13 (requires additional handling below)
+ − 287 tbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR) ? false : // ----
+ − 288 true; // GB999
+ − 289 }
+ − 290
+ − 291 static utf8proc_bool grapheme_break_extended(int lbc, int tbc, int licb, int ticb, utf8proc_int32_t *state)
+ − 292 {
+ − 293 if (state) {
+ − 294 int state_bc, state_icb; /* boundclass and indic_conjunct_break state */
+ − 295 if (*state == 0) { /* state initialization */
+ − 296 state_bc = lbc;
+ − 297 state_icb = licb == UTF8PROC_INDIC_CONJUNCT_BREAK_CONSONANT ? licb : UTF8PROC_INDIC_CONJUNCT_BREAK_NONE;
+ − 298 }
+ − 299 else { /* lbc and licb are already encoded in *state */
+ − 300 state_bc = *state & 0xff; // 1st byte of state is bound class
+ − 301 state_icb = *state >> 8; // 2nd byte of state is indic conjunct break
+ − 302 }
+ − 303
+ − 304 utf8proc_bool break_permitted = grapheme_break_simple(state_bc, tbc) &&
+ − 305 !(state_icb == UTF8PROC_INDIC_CONJUNCT_BREAK_LINKER
+ − 306 && ticb == UTF8PROC_INDIC_CONJUNCT_BREAK_CONSONANT); // GB9c
+ − 307
+ − 308 // Special support for GB9c. Don't break between two consonants
+ − 309 // separated 1+ linker characters and 0+ extend characters in any order.
+ − 310 // After a consonant, we enter LINKER state after at least one linker.
+ − 311 if (ticb == UTF8PROC_INDIC_CONJUNCT_BREAK_CONSONANT
+ − 312 || state_icb == UTF8PROC_INDIC_CONJUNCT_BREAK_CONSONANT
+ − 313 || state_icb == UTF8PROC_INDIC_CONJUNCT_BREAK_EXTEND)
+ − 314 state_icb = ticb;
+ − 315 else if (state_icb == UTF8PROC_INDIC_CONJUNCT_BREAK_LINKER)
+ − 316 state_icb = ticb == UTF8PROC_INDIC_CONJUNCT_BREAK_EXTEND ?
+ − 317 UTF8PROC_INDIC_CONJUNCT_BREAK_LINKER : ticb;
+ − 318
+ − 319 // Special support for GB 12/13 made possible by GB999. After two RI
+ − 320 // class codepoints we want to force a break. Do this by resetting the
+ − 321 // second RI's bound class to UTF8PROC_BOUNDCLASS_OTHER, to force a break
+ − 322 // after that character according to GB999 (unless of course such a break is
+ − 323 // forbidden by a different rule such as GB9).
+ − 324 if (state_bc == tbc && tbc == UTF8PROC_BOUNDCLASS_REGIONAL_INDICATOR)
+ − 325 state_bc = UTF8PROC_BOUNDCLASS_OTHER;
+ − 326 // Special support for GB11 (emoji extend* zwj / emoji)
+ − 327 else if (state_bc == UTF8PROC_BOUNDCLASS_EXTENDED_PICTOGRAPHIC) {
+ − 328 if (tbc == UTF8PROC_BOUNDCLASS_EXTEND) // fold EXTEND codepoints into emoji
+ − 329 state_bc = UTF8PROC_BOUNDCLASS_EXTENDED_PICTOGRAPHIC;
+ − 330 else if (tbc == UTF8PROC_BOUNDCLASS_ZWJ)
+ − 331 state_bc = UTF8PROC_BOUNDCLASS_E_ZWG; // state to record emoji+zwg combo
+ − 332 else
+ − 333 state_bc = tbc;
+ − 334 }
+ − 335 else
+ − 336 state_bc = tbc;
+ − 337
+ − 338 *state = state_bc + (state_icb << 8);
+ − 339 return break_permitted;
+ − 340 }
+ − 341 else
+ − 342 return grapheme_break_simple(lbc, tbc);
+ − 343 }
+ − 344
+ − 345 UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_grapheme_break_stateful(
+ − 346 utf8proc_int32_t c1, utf8proc_int32_t c2, utf8proc_int32_t *state) {
+ − 347
+ − 348 const utf8proc_property_t *p1 = utf8proc_get_property(c1);
+ − 349 const utf8proc_property_t *p2 = utf8proc_get_property(c2);
+ − 350 return grapheme_break_extended(p1->boundclass,
+ − 351 p2->boundclass,
+ − 352 p1->indic_conjunct_break,
+ − 353 p2->indic_conjunct_break,
+ − 354 state);
+ − 355 }
+ − 356
+ − 357
+ − 358 UTF8PROC_DLLEXPORT utf8proc_bool utf8proc_grapheme_break(
+ − 359 utf8proc_int32_t c1, utf8proc_int32_t c2) {
+ − 360 return utf8proc_grapheme_break_stateful(c1, c2, NULL);
+ − 361 }
+ − 362
+ − 363 static utf8proc_int32_t seqindex_decode_entry(const utf8proc_uint16_t **entry)
+ − 364 {
+ − 365 utf8proc_int32_t entry_cp = **entry;
+ − 366 if ((entry_cp & 0xF800) == 0xD800) {
+ − 367 *entry = *entry + 1;
+ − 368 entry_cp = ((entry_cp & 0x03FF) << 10) | (**entry & 0x03FF);
+ − 369 entry_cp += 0x10000;
+ − 370 }
+ − 371 return entry_cp;
+ − 372 }
+ − 373
+ − 374 static utf8proc_int32_t seqindex_decode_index(const utf8proc_uint32_t seqindex)
+ − 375 {
+ − 376 const utf8proc_uint16_t *entry = &utf8proc_sequences[seqindex];
+ − 377 return seqindex_decode_entry(&entry);
+ − 378 }
+ − 379
+ − 380 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) {
+ − 381 utf8proc_ssize_t written = 0;
+ − 382 const utf8proc_uint16_t *entry = &utf8proc_sequences[seqindex & 0x3FFF];
+ − 383 int len = seqindex >> 14;
+ − 384 if (len >= 3) {
+ − 385 len = *entry;
+ − 386 entry++;
+ − 387 }
+ − 388 for (; len >= 0; entry++, len--) {
+ − 389 utf8proc_int32_t entry_cp = seqindex_decode_entry(&entry);
+ − 390
+ − 391 written += utf8proc_decompose_char(entry_cp, dst+written,
+ − 392 (bufsize > written) ? (bufsize - written) : 0, options,
+ − 393 last_boundclass);
+ − 394 if (written < 0) return UTF8PROC_ERROR_OVERFLOW;
+ − 395 }
+ − 396 return written;
+ − 397 }
+ − 398
+ − 399 UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_tolower(utf8proc_int32_t c)
+ − 400 {
+ − 401 utf8proc_int32_t cl = utf8proc_get_property(c)->lowercase_seqindex;
+ − 402 return cl != UINT16_MAX ? seqindex_decode_index((utf8proc_uint32_t)cl) : c;
+ − 403 }
+ − 404
+ − 405 UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_toupper(utf8proc_int32_t c)
+ − 406 {
+ − 407 utf8proc_int32_t cu = utf8proc_get_property(c)->uppercase_seqindex;
+ − 408 return cu != UINT16_MAX ? seqindex_decode_index((utf8proc_uint32_t)cu) : c;
+ − 409 }
+ − 410
+ − 411 UTF8PROC_DLLEXPORT utf8proc_int32_t utf8proc_totitle(utf8proc_int32_t c)
+ − 412 {
+ − 413 utf8proc_int32_t cu = utf8proc_get_property(c)->titlecase_seqindex;
+ − 414 return cu != UINT16_MAX ? seqindex_decode_index((utf8proc_uint32_t)cu) : c;
+ − 415 }
+ − 416
+ − 417 UTF8PROC_DLLEXPORT int utf8proc_islower(utf8proc_int32_t c)
+ − 418 {
+ − 419 const utf8proc_property_t *p = utf8proc_get_property(c);
+ − 420 return p->lowercase_seqindex != p->uppercase_seqindex && p->lowercase_seqindex == UINT16_MAX;
+ − 421 }
+ − 422
+ − 423 UTF8PROC_DLLEXPORT int utf8proc_isupper(utf8proc_int32_t c)
+ − 424 {
+ − 425 const utf8proc_property_t *p = utf8proc_get_property(c);
+ − 426 return p->lowercase_seqindex != p->uppercase_seqindex && p->uppercase_seqindex == UINT16_MAX && p->category != UTF8PROC_CATEGORY_LT;
+ − 427 }
+ − 428
+ − 429 /* return a character width analogous to wcwidth (except portable and
+ − 430 hopefully less buggy than most system wcwidth functions). */
+ − 431 UTF8PROC_DLLEXPORT int utf8proc_charwidth(utf8proc_int32_t c) {
+ − 432 return utf8proc_get_property(c)->charwidth;
+ − 433 }
+ − 434
+ − 435 UTF8PROC_DLLEXPORT utf8proc_category_t utf8proc_category(utf8proc_int32_t c) {
+ − 436 return (utf8proc_category_t) utf8proc_get_property(c)->category;
+ − 437 }
+ − 438
+ − 439 UTF8PROC_DLLEXPORT const char *utf8proc_category_string(utf8proc_int32_t c) {
+ − 440 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"};
+ − 441 return s[utf8proc_category(c)];
+ − 442 }
+ − 443
+ − 444 #define utf8proc_decompose_lump(replacement_uc) \
+ − 445 return utf8proc_decompose_char((replacement_uc), dst, bufsize, \
+ − 446 options & ~(unsigned int)UTF8PROC_LUMP, last_boundclass)
+ − 447
+ − 448 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) {
+ − 449 const utf8proc_property_t *property;
+ − 450 utf8proc_propval_t category;
+ − 451 utf8proc_int32_t hangul_sindex;
+ − 452 if (uc < 0 || uc >= 0x110000) return UTF8PROC_ERROR_NOTASSIGNED;
+ − 453 property = unsafe_get_property(uc);
+ − 454 category = property->category;
+ − 455 hangul_sindex = uc - UTF8PROC_HANGUL_SBASE;
+ − 456 if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) {
+ − 457 if (hangul_sindex >= 0 && hangul_sindex < UTF8PROC_HANGUL_SCOUNT) {
+ − 458 utf8proc_int32_t hangul_tindex;
+ − 459 if (bufsize >= 1) {
+ − 460 dst[0] = UTF8PROC_HANGUL_LBASE +
+ − 461 hangul_sindex / UTF8PROC_HANGUL_NCOUNT;
+ − 462 if (bufsize >= 2) dst[1] = UTF8PROC_HANGUL_VBASE +
+ − 463 (hangul_sindex % UTF8PROC_HANGUL_NCOUNT) / UTF8PROC_HANGUL_TCOUNT;
+ − 464 }
+ − 465 hangul_tindex = hangul_sindex % UTF8PROC_HANGUL_TCOUNT;
+ − 466 if (!hangul_tindex) return 2;
+ − 467 if (bufsize >= 3) dst[2] = UTF8PROC_HANGUL_TBASE + hangul_tindex;
+ − 468 return 3;
+ − 469 }
+ − 470 }
+ − 471 if (options & UTF8PROC_REJECTNA) {
+ − 472 if (!category) return UTF8PROC_ERROR_NOTASSIGNED;
+ − 473 }
+ − 474 if (options & UTF8PROC_IGNORE) {
+ − 475 if (property->ignorable) return 0;
+ − 476 }
+ − 477 if (options & UTF8PROC_STRIPNA) {
+ − 478 if (!category) return 0;
+ − 479 }
+ − 480 if (options & UTF8PROC_LUMP) {
+ − 481 if (category == UTF8PROC_CATEGORY_ZS) utf8proc_decompose_lump(0x0020);
+ − 482 if (uc == 0x2018 || uc == 0x2019 || uc == 0x02BC || uc == 0x02C8)
+ − 483 utf8proc_decompose_lump(0x0027);
+ − 484 if (category == UTF8PROC_CATEGORY_PD || uc == 0x2212)
+ − 485 utf8proc_decompose_lump(0x002D);
+ − 486 if (uc == 0x2044 || uc == 0x2215) utf8proc_decompose_lump(0x002F);
+ − 487 if (uc == 0x2236) utf8proc_decompose_lump(0x003A);
+ − 488 if (uc == 0x2039 || uc == 0x2329 || uc == 0x3008)
+ − 489 utf8proc_decompose_lump(0x003C);
+ − 490 if (uc == 0x203A || uc == 0x232A || uc == 0x3009)
+ − 491 utf8proc_decompose_lump(0x003E);
+ − 492 if (uc == 0x2216) utf8proc_decompose_lump(0x005C);
+ − 493 if (uc == 0x02C4 || uc == 0x02C6 || uc == 0x2038 || uc == 0x2303)
+ − 494 utf8proc_decompose_lump(0x005E);
+ − 495 if (category == UTF8PROC_CATEGORY_PC || uc == 0x02CD)
+ − 496 utf8proc_decompose_lump(0x005F);
+ − 497 if (uc == 0x02CB) utf8proc_decompose_lump(0x0060);
+ − 498 if (uc == 0x2223) utf8proc_decompose_lump(0x007C);
+ − 499 if (uc == 0x223C) utf8proc_decompose_lump(0x007E);
+ − 500 if ((options & UTF8PROC_NLF2LS) && (options & UTF8PROC_NLF2PS)) {
+ − 501 if (category == UTF8PROC_CATEGORY_ZL ||
+ − 502 category == UTF8PROC_CATEGORY_ZP)
+ − 503 utf8proc_decompose_lump(0x000A);
+ − 504 }
+ − 505 }
+ − 506 if (options & UTF8PROC_STRIPMARK) {
+ − 507 if (category == UTF8PROC_CATEGORY_MN ||
+ − 508 category == UTF8PROC_CATEGORY_MC ||
+ − 509 category == UTF8PROC_CATEGORY_ME) return 0;
+ − 510 }
+ − 511 if (options & UTF8PROC_CASEFOLD) {
+ − 512 if (property->casefold_seqindex != UINT16_MAX) {
+ − 513 return seqindex_write_char_decomposed(property->casefold_seqindex, dst, bufsize, options, last_boundclass);
+ − 514 }
+ − 515 }
+ − 516 if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) {
+ − 517 if (property->decomp_seqindex != UINT16_MAX &&
+ − 518 (!property->decomp_type || (options & UTF8PROC_COMPAT))) {
+ − 519 return seqindex_write_char_decomposed(property->decomp_seqindex, dst, bufsize, options, last_boundclass);
+ − 520 }
+ − 521 }
+ − 522 if (options & UTF8PROC_CHARBOUND) {
+ − 523 utf8proc_bool boundary;
+ − 524 boundary = grapheme_break_extended(0, property->boundclass, 0, property->indic_conjunct_break,
+ − 525 last_boundclass);
+ − 526 if (boundary) {
+ − 527 if (bufsize >= 1) dst[0] = -1; /* sentinel value for grapheme break */
+ − 528 if (bufsize >= 2) dst[1] = uc;
+ − 529 return 2;
+ − 530 }
+ − 531 }
+ − 532 if (bufsize >= 1) *dst = uc;
+ − 533 return 1;
+ − 534 }
+ − 535
+ − 536 UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose(
+ − 537 const utf8proc_uint8_t *str, utf8proc_ssize_t strlen,
+ − 538 utf8proc_int32_t *buffer, utf8proc_ssize_t bufsize, utf8proc_option_t options
+ − 539 ) {
+ − 540 return utf8proc_decompose_custom(str, strlen, buffer, bufsize, options, NULL, NULL);
+ − 541 }
+ − 542
+ − 543 UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_decompose_custom(
+ − 544 const utf8proc_uint8_t *str, utf8proc_ssize_t strlen,
+ − 545 utf8proc_int32_t *buffer, utf8proc_ssize_t bufsize, utf8proc_option_t options,
+ − 546 utf8proc_custom_func custom_func, void *custom_data
+ − 547 ) {
+ − 548 /* strlen will be ignored, if UTF8PROC_NULLTERM is set in options */
+ − 549 utf8proc_ssize_t wpos = 0;
+ − 550 if ((options & UTF8PROC_COMPOSE) && (options & UTF8PROC_DECOMPOSE))
+ − 551 return UTF8PROC_ERROR_INVALIDOPTS;
+ − 552 if ((options & UTF8PROC_STRIPMARK) &&
+ − 553 !(options & UTF8PROC_COMPOSE) && !(options & UTF8PROC_DECOMPOSE))
+ − 554 return UTF8PROC_ERROR_INVALIDOPTS;
+ − 555 {
+ − 556 utf8proc_int32_t uc;
+ − 557 utf8proc_ssize_t rpos = 0;
+ − 558 utf8proc_ssize_t decomp_result;
+ − 559 int boundclass = UTF8PROC_BOUNDCLASS_START;
+ − 560 while (1) {
+ − 561 if (options & UTF8PROC_NULLTERM) {
+ − 562 rpos += utf8proc_iterate(str + rpos, -1, &uc);
+ − 563 /* checking of return value is not necessary,
+ − 564 as 'uc' is < 0 in case of error */
+ − 565 if (uc < 0) return UTF8PROC_ERROR_INVALIDUTF8;
+ − 566 if (rpos < 0) return UTF8PROC_ERROR_OVERFLOW;
+ − 567 if (uc == 0) break;
+ − 568 } else {
+ − 569 if (rpos >= strlen) break;
+ − 570 rpos += utf8proc_iterate(str + rpos, strlen - rpos, &uc);
+ − 571 if (uc < 0) return UTF8PROC_ERROR_INVALIDUTF8;
+ − 572 }
+ − 573 if (custom_func != NULL) {
+ − 574 uc = custom_func(uc, custom_data); /* user-specified custom mapping */
+ − 575 }
+ − 576 decomp_result = utf8proc_decompose_char(
+ − 577 uc, buffer + wpos, (bufsize > wpos) ? (bufsize - wpos) : 0, options,
+ − 578 &boundclass
+ − 579 );
+ − 580 if (decomp_result < 0) return decomp_result;
+ − 581 wpos += decomp_result;
+ − 582 /* prohibiting integer overflows due to too long strings: */
+ − 583 if (wpos < 0 ||
+ − 584 wpos > (utf8proc_ssize_t)(SSIZE_MAX/sizeof(utf8proc_int32_t)/2))
+ − 585 return UTF8PROC_ERROR_OVERFLOW;
+ − 586 }
+ − 587 }
+ − 588 if ((options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) && bufsize >= wpos) {
+ − 589 utf8proc_ssize_t pos = 0;
+ − 590 while (pos < wpos-1) {
+ − 591 utf8proc_int32_t uc1, uc2;
+ − 592 const utf8proc_property_t *property1, *property2;
+ − 593 uc1 = buffer[pos];
+ − 594 uc2 = buffer[pos+1];
+ − 595 property1 = unsafe_get_property(uc1);
+ − 596 property2 = unsafe_get_property(uc2);
+ − 597 if (property1->combining_class > property2->combining_class &&
+ − 598 property2->combining_class > 0) {
+ − 599 buffer[pos] = uc2;
+ − 600 buffer[pos+1] = uc1;
+ − 601 if (pos > 0) pos--; else pos++;
+ − 602 } else {
+ − 603 pos++;
+ − 604 }
+ − 605 }
+ − 606 }
+ − 607 return wpos;
+ − 608 }
+ − 609
+ − 610 UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_normalize_utf32(utf8proc_int32_t *buffer, utf8proc_ssize_t length, utf8proc_option_t options) {
+ − 611 /* UTF8PROC_NULLTERM option will be ignored, 'length' is never ignored */
+ − 612 if (options & (UTF8PROC_NLF2LS | UTF8PROC_NLF2PS | UTF8PROC_STRIPCC)) {
+ − 613 utf8proc_ssize_t rpos;
+ − 614 utf8proc_ssize_t wpos = 0;
+ − 615 utf8proc_int32_t uc;
+ − 616 for (rpos = 0; rpos < length; rpos++) {
+ − 617 uc = buffer[rpos];
+ − 618 if (uc == 0x000D && rpos < length-1 && buffer[rpos+1] == 0x000A) rpos++;
+ − 619 if (uc == 0x000A || uc == 0x000D || uc == 0x0085 ||
+ − 620 ((options & UTF8PROC_STRIPCC) && (uc == 0x000B || uc == 0x000C))) {
+ − 621 if (options & UTF8PROC_NLF2LS) {
+ − 622 if (options & UTF8PROC_NLF2PS) {
+ − 623 buffer[wpos++] = 0x000A;
+ − 624 } else {
+ − 625 buffer[wpos++] = 0x2028;
+ − 626 }
+ − 627 } else {
+ − 628 if (options & UTF8PROC_NLF2PS) {
+ − 629 buffer[wpos++] = 0x2029;
+ − 630 } else {
+ − 631 buffer[wpos++] = 0x0020;
+ − 632 }
+ − 633 }
+ − 634 } else if ((options & UTF8PROC_STRIPCC) &&
+ − 635 (uc < 0x0020 || (uc >= 0x007F && uc < 0x00A0))) {
+ − 636 if (uc == 0x0009) buffer[wpos++] = 0x0020;
+ − 637 } else {
+ − 638 buffer[wpos++] = uc;
+ − 639 }
+ − 640 }
+ − 641 length = wpos;
+ − 642 }
+ − 643 if (options & UTF8PROC_COMPOSE) {
+ − 644 utf8proc_int32_t *starter = NULL;
+ − 645 utf8proc_int32_t current_char;
+ − 646 const utf8proc_property_t *starter_property = NULL, *current_property;
+ − 647 utf8proc_propval_t max_combining_class = -1;
+ − 648 utf8proc_ssize_t rpos;
+ − 649 utf8proc_ssize_t wpos = 0;
+ − 650 utf8proc_int32_t composition;
+ − 651 for (rpos = 0; rpos < length; rpos++) {
+ − 652 current_char = buffer[rpos];
+ − 653 current_property = unsafe_get_property(current_char);
+ − 654 if (starter && current_property->combining_class > max_combining_class) {
+ − 655 /* combination perhaps possible */
+ − 656 utf8proc_int32_t hangul_lindex;
+ − 657 utf8proc_int32_t hangul_sindex;
+ − 658 hangul_lindex = *starter - UTF8PROC_HANGUL_LBASE;
+ − 659 if (hangul_lindex >= 0 && hangul_lindex < UTF8PROC_HANGUL_LCOUNT) {
+ − 660 utf8proc_int32_t hangul_vindex;
+ − 661 hangul_vindex = current_char - UTF8PROC_HANGUL_VBASE;
+ − 662 if (hangul_vindex >= 0 && hangul_vindex < UTF8PROC_HANGUL_VCOUNT) {
+ − 663 *starter = UTF8PROC_HANGUL_SBASE +
+ − 664 (hangul_lindex * UTF8PROC_HANGUL_VCOUNT + hangul_vindex) *
+ − 665 UTF8PROC_HANGUL_TCOUNT;
+ − 666 starter_property = NULL;
+ − 667 continue;
+ − 668 }
+ − 669 }
+ − 670 hangul_sindex = *starter - UTF8PROC_HANGUL_SBASE;
+ − 671 if (hangul_sindex >= 0 && hangul_sindex < UTF8PROC_HANGUL_SCOUNT &&
+ − 672 (hangul_sindex % UTF8PROC_HANGUL_TCOUNT) == 0) {
+ − 673 utf8proc_int32_t hangul_tindex;
+ − 674 hangul_tindex = current_char - UTF8PROC_HANGUL_TBASE;
+ − 675 if (hangul_tindex >= 0 && hangul_tindex < UTF8PROC_HANGUL_TCOUNT) {
+ − 676 *starter += hangul_tindex;
+ − 677 starter_property = NULL;
+ − 678 continue;
+ − 679 }
+ − 680 }
+ − 681 if (!starter_property) {
+ − 682 starter_property = unsafe_get_property(*starter);
+ − 683 }
+ − 684 if (starter_property->comb_index < 0x8000 &&
+ − 685 current_property->comb_index != UINT16_MAX &&
+ − 686 current_property->comb_index >= 0x8000) {
+ − 687 int sidx = starter_property->comb_index;
+ − 688 int idx = current_property->comb_index & 0x3FFF;
+ − 689 if (idx >= utf8proc_combinations[sidx] && idx <= utf8proc_combinations[sidx + 1] ) {
+ − 690 idx += sidx + 2 - utf8proc_combinations[sidx];
+ − 691 if (current_property->comb_index & 0x4000) {
+ − 692 composition = (utf8proc_combinations[idx] << 16) | utf8proc_combinations[idx+1];
+ − 693 } else
+ − 694 composition = utf8proc_combinations[idx];
+ − 695
+ − 696 if (composition > 0 && (!(options & UTF8PROC_STABLE) ||
+ − 697 !(unsafe_get_property(composition)->comp_exclusion))) {
+ − 698 *starter = composition;
+ − 699 starter_property = NULL;
+ − 700 continue;
+ − 701 }
+ − 702 }
+ − 703 }
+ − 704 }
+ − 705 buffer[wpos] = current_char;
+ − 706 if (current_property->combining_class) {
+ − 707 if (current_property->combining_class > max_combining_class) {
+ − 708 max_combining_class = current_property->combining_class;
+ − 709 }
+ − 710 } else {
+ − 711 starter = buffer + wpos;
+ − 712 starter_property = NULL;
+ − 713 max_combining_class = -1;
+ − 714 }
+ − 715 wpos++;
+ − 716 }
+ − 717 length = wpos;
+ − 718 }
+ − 719 return length;
+ − 720 }
+ − 721
+ − 722 UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_reencode(utf8proc_int32_t *buffer, utf8proc_ssize_t length, utf8proc_option_t options) {
+ − 723 /* UTF8PROC_NULLTERM option will be ignored, 'length' is never ignored
+ − 724 ASSERT: 'buffer' has one spare byte of free space at the end! */
+ − 725 length = utf8proc_normalize_utf32(buffer, length, options);
+ − 726 if (length < 0) return length;
+ − 727 {
+ − 728 utf8proc_ssize_t rpos, wpos = 0;
+ − 729 utf8proc_int32_t uc;
+ − 730 if (options & UTF8PROC_CHARBOUND) {
+ − 731 for (rpos = 0; rpos < length; rpos++) {
+ − 732 uc = buffer[rpos];
+ − 733 wpos += charbound_encode_char(uc, ((utf8proc_uint8_t *)buffer) + wpos);
+ − 734 }
+ − 735 } else {
+ − 736 for (rpos = 0; rpos < length; rpos++) {
+ − 737 uc = buffer[rpos];
+ − 738 wpos += utf8proc_encode_char(uc, ((utf8proc_uint8_t *)buffer) + wpos);
+ − 739 }
+ − 740 }
+ − 741 ((utf8proc_uint8_t *)buffer)[wpos] = 0;
+ − 742 return wpos;
+ − 743 }
+ − 744 }
+ − 745
+ − 746 UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_map(
+ − 747 const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_uint8_t **dstptr, utf8proc_option_t options
+ − 748 ) {
+ − 749 return utf8proc_map_custom(str, strlen, dstptr, options, NULL, NULL);
+ − 750 }
+ − 751
+ − 752 UTF8PROC_DLLEXPORT utf8proc_ssize_t utf8proc_map_custom(
+ − 753 const utf8proc_uint8_t *str, utf8proc_ssize_t strlen, utf8proc_uint8_t **dstptr, utf8proc_option_t options,
+ − 754 utf8proc_custom_func custom_func, void *custom_data
+ − 755 ) {
+ − 756 utf8proc_int32_t *buffer;
+ − 757 utf8proc_ssize_t result;
+ − 758 *dstptr = NULL;
+ − 759 result = utf8proc_decompose_custom(str, strlen, NULL, 0, options, custom_func, custom_data);
+ − 760 if (result < 0) return result;
+ − 761 buffer = (utf8proc_int32_t *) malloc(((utf8proc_size_t)result) * sizeof(utf8proc_int32_t) + 1);
+ − 762 if (!buffer) return UTF8PROC_ERROR_NOMEM;
+ − 763 result = utf8proc_decompose_custom(str, strlen, buffer, result, options, custom_func, custom_data);
+ − 764 if (result < 0) {
+ − 765 free(buffer);
+ − 766 return result;
+ − 767 }
+ − 768 result = utf8proc_reencode(buffer, result, options);
+ − 769 if (result < 0) {
+ − 770 free(buffer);
+ − 771 return result;
+ − 772 }
+ − 773 {
+ − 774 utf8proc_int32_t *newptr;
+ − 775 newptr = (utf8proc_int32_t *) realloc(buffer, (size_t)result+1);
+ − 776 if (newptr) buffer = newptr;
+ − 777 }
+ − 778 *dstptr = (utf8proc_uint8_t *)buffer;
+ − 779 return result;
+ − 780 }
+ − 781
+ − 782 UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFD(const utf8proc_uint8_t *str) {
+ − 783 utf8proc_uint8_t *retval;
+ − 784 utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
+ − 785 UTF8PROC_DECOMPOSE);
+ − 786 return retval;
+ − 787 }
+ − 788
+ − 789 UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFC(const utf8proc_uint8_t *str) {
+ − 790 utf8proc_uint8_t *retval;
+ − 791 utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
+ − 792 UTF8PROC_COMPOSE);
+ − 793 return retval;
+ − 794 }
+ − 795
+ − 796 UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKD(const utf8proc_uint8_t *str) {
+ − 797 utf8proc_uint8_t *retval;
+ − 798 utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
+ − 799 UTF8PROC_DECOMPOSE | UTF8PROC_COMPAT);
+ − 800 return retval;
+ − 801 }
+ − 802
+ − 803 UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKC(const utf8proc_uint8_t *str) {
+ − 804 utf8proc_uint8_t *retval;
+ − 805 utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
+ − 806 UTF8PROC_COMPOSE | UTF8PROC_COMPAT);
+ − 807 return retval;
+ − 808 }
+ − 809
+ − 810 UTF8PROC_DLLEXPORT utf8proc_uint8_t *utf8proc_NFKC_Casefold(const utf8proc_uint8_t *str) {
+ − 811 utf8proc_uint8_t *retval;
+ − 812 utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE |
+ − 813 UTF8PROC_COMPOSE | UTF8PROC_COMPAT | UTF8PROC_CASEFOLD | UTF8PROC_IGNORE);
+ − 814 return retval;
+ − 815 }