utf8proc
annotate utf8proc.c @ 14:d0bab6ca89a5
Version 1.1.6
- PostgreSQL 9.2 and 9.3 compatibility (lowercase 'c' language name)
- PostgreSQL 9.2 and 9.3 compatibility (lowercase 'c' language name)
author | jbe |
---|---|
date | Wed Nov 27 12:00:00 2013 +0100 (2013-11-27) |
parents | 2c7384f1fac1 |
children | 15450ff3d454 |
rev | line source |
---|---|
jbe@0 | 1 /* |
jbe@10 | 2 * Copyright (c) 2009 Public Software Group e. V., Berlin, Germany |
jbe@0 | 3 * |
jbe@7 | 4 * Permission is hereby granted, free of charge, to any person obtaining a |
jbe@7 | 5 * copy of this software and associated documentation files (the "Software"), |
jbe@7 | 6 * to deal in the Software without restriction, including without limitation |
jbe@7 | 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
jbe@7 | 8 * and/or sell copies of the Software, and to permit persons to whom the |
jbe@7 | 9 * Software is furnished to do so, subject to the following conditions: |
jbe@0 | 10 * |
jbe@7 | 11 * The above copyright notice and this permission notice shall be included in |
jbe@7 | 12 * all copies or substantial portions of the Software. |
jbe@0 | 13 * |
jbe@7 | 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
jbe@7 | 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
jbe@7 | 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
jbe@7 | 17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
jbe@7 | 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
jbe@7 | 19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
jbe@7 | 20 * DEALINGS IN THE SOFTWARE. |
jbe@7 | 21 */ |
jbe@7 | 22 |
jbe@7 | 23 /* |
jbe@0 | 24 * This library contains derived data from a modified version of the |
jbe@0 | 25 * Unicode data files. |
jbe@0 | 26 * |
jbe@0 | 27 * The original data files are available at |
jbe@0 | 28 * http://www.unicode.org/Public/UNIDATA/ |
jbe@0 | 29 * |
jbe@0 | 30 * Please notice the copyright statement in the file "utf8proc_data.c". |
jbe@0 | 31 */ |
jbe@0 | 32 |
jbe@0 | 33 |
jbe@0 | 34 /* |
jbe@0 | 35 * File name: utf8proc.c |
jbe@0 | 36 * |
jbe@0 | 37 * Description: |
jbe@0 | 38 * Implementation of libutf8proc. |
jbe@0 | 39 */ |
jbe@0 | 40 |
jbe@0 | 41 |
jbe@0 | 42 #include "utf8proc.h" |
jbe@0 | 43 #include "utf8proc_data.c" |
jbe@0 | 44 |
jbe@0 | 45 |
jbe@0 | 46 const int8_t utf8proc_utf8class[256] = { |
jbe@0 | 47 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
jbe@0 | 48 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
jbe@0 | 49 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
jbe@0 | 50 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
jbe@0 | 51 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
jbe@0 | 52 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
jbe@0 | 53 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
jbe@0 | 54 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
jbe@0 | 55 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
jbe@0 | 56 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
jbe@0 | 57 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
jbe@0 | 58 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
jbe@0 | 59 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
jbe@0 | 60 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
jbe@0 | 61 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, |
jbe@0 | 62 4, 4, 4, 4, 4, 4, 4, 4, 0, 0, 0, 0, 0, 0, 0, 0 }; |
jbe@0 | 63 |
jbe@0 | 64 #define UTF8PROC_HANGUL_SBASE 0xAC00 |
jbe@0 | 65 #define UTF8PROC_HANGUL_LBASE 0x1100 |
jbe@0 | 66 #define UTF8PROC_HANGUL_VBASE 0x1161 |
jbe@0 | 67 #define UTF8PROC_HANGUL_TBASE 0x11A7 |
jbe@0 | 68 #define UTF8PROC_HANGUL_LCOUNT 19 |
jbe@0 | 69 #define UTF8PROC_HANGUL_VCOUNT 21 |
jbe@0 | 70 #define UTF8PROC_HANGUL_TCOUNT 28 |
jbe@0 | 71 #define UTF8PROC_HANGUL_NCOUNT 588 |
jbe@0 | 72 #define UTF8PROC_HANGUL_SCOUNT 11172 |
jbe@10 | 73 /* END is exclusive */ |
jbe@2 | 74 #define UTF8PROC_HANGUL_L_START 0x1100 |
jbe@2 | 75 #define UTF8PROC_HANGUL_L_END 0x115A |
jbe@2 | 76 #define UTF8PROC_HANGUL_L_FILLER 0x115F |
jbe@2 | 77 #define UTF8PROC_HANGUL_V_START 0x1160 |
jbe@2 | 78 #define UTF8PROC_HANGUL_V_END 0x11A3 |
jbe@2 | 79 #define UTF8PROC_HANGUL_T_START 0x11A8 |
jbe@2 | 80 #define UTF8PROC_HANGUL_T_END 0x11FA |
jbe@2 | 81 #define UTF8PROC_HANGUL_S_START 0xAC00 |
jbe@2 | 82 #define UTF8PROC_HANGUL_S_END 0xD7A4 |
jbe@2 | 83 |
jbe@2 | 84 |
jbe@2 | 85 #define UTF8PROC_BOUNDCLASS_START 0 |
jbe@2 | 86 #define UTF8PROC_BOUNDCLASS_OTHER 1 |
jbe@2 | 87 #define UTF8PROC_BOUNDCLASS_CR 2 |
jbe@2 | 88 #define UTF8PROC_BOUNDCLASS_LF 3 |
jbe@2 | 89 #define UTF8PROC_BOUNDCLASS_CONTROL 4 |
jbe@2 | 90 #define UTF8PROC_BOUNDCLASS_EXTEND 5 |
jbe@2 | 91 #define UTF8PROC_BOUNDCLASS_L 6 |
jbe@2 | 92 #define UTF8PROC_BOUNDCLASS_V 7 |
jbe@2 | 93 #define UTF8PROC_BOUNDCLASS_T 8 |
jbe@2 | 94 #define UTF8PROC_BOUNDCLASS_LV 9 |
jbe@2 | 95 #define UTF8PROC_BOUNDCLASS_LVT 10 |
jbe@0 | 96 |
jbe@0 | 97 |
jbe@9 | 98 const char *utf8proc_version(void) { |
jbe@14 | 99 return "1.1.6"; |
jbe@9 | 100 } |
jbe@9 | 101 |
jbe@0 | 102 const char *utf8proc_errmsg(ssize_t errcode) { |
jbe@0 | 103 switch (errcode) { |
jbe@0 | 104 case UTF8PROC_ERROR_NOMEM: |
jbe@0 | 105 return "Memory for processing UTF-8 data could not be allocated."; |
jbe@0 | 106 case UTF8PROC_ERROR_OVERFLOW: |
jbe@0 | 107 return "UTF-8 string is too long to be processed."; |
jbe@0 | 108 case UTF8PROC_ERROR_INVALIDUTF8: |
jbe@0 | 109 return "Invalid UTF-8 string"; |
jbe@0 | 110 case UTF8PROC_ERROR_NOTASSIGNED: |
jbe@0 | 111 return "Unassigned Unicode code point found in UTF-8 string."; |
jbe@3 | 112 case UTF8PROC_ERROR_INVALIDOPTS: |
jbe@3 | 113 return "Invalid options for UTF-8 processing chosen."; |
jbe@0 | 114 default: |
jbe@0 | 115 return "An unknown error occured while processing UTF-8 data."; |
jbe@0 | 116 } |
jbe@0 | 117 } |
jbe@0 | 118 |
jbe@7 | 119 ssize_t utf8proc_iterate( |
jbe@7 | 120 const uint8_t *str, ssize_t strlen, int32_t *dst |
jbe@7 | 121 ) { |
jbe@0 | 122 int length; |
jbe@0 | 123 int i; |
jbe@0 | 124 int32_t uc = -1; |
jbe@0 | 125 *dst = -1; |
jbe@0 | 126 if (!strlen) return 0; |
jbe@0 | 127 length = utf8proc_utf8class[str[0]]; |
jbe@0 | 128 if (!length) return UTF8PROC_ERROR_INVALIDUTF8; |
jbe@0 | 129 if (strlen >= 0 && length > strlen) return UTF8PROC_ERROR_INVALIDUTF8; |
jbe@0 | 130 for (i=1; i<length; i++) { |
jbe@0 | 131 if ((str[i] & 0xC0) != 0x80) return UTF8PROC_ERROR_INVALIDUTF8; |
jbe@0 | 132 } |
jbe@0 | 133 switch (length) { |
jbe@0 | 134 case 1: |
jbe@0 | 135 uc = str[0]; |
jbe@0 | 136 break; |
jbe@0 | 137 case 2: |
jbe@0 | 138 uc = ((str[0] & 0x1F) << 6) + (str[1] & 0x3F); |
jbe@0 | 139 if (uc < 0x80) uc = -1; |
jbe@0 | 140 break; |
jbe@0 | 141 case 3: |
jbe@0 | 142 uc = ((str[0] & 0x0F) << 12) + ((str[1] & 0x3F) << 6) |
jbe@0 | 143 + (str[2] & 0x3F); |
jbe@0 | 144 if (uc < 0x800 || (uc >= 0xD800 && uc < 0xE000) || |
jbe@0 | 145 (uc >= 0xFDD0 && uc < 0xFDF0)) uc = -1; |
jbe@0 | 146 break; |
jbe@0 | 147 case 4: |
jbe@0 | 148 uc = ((str[0] & 0x07) << 18) + ((str[1] & 0x3F) << 12) |
jbe@0 | 149 + ((str[2] & 0x3F) << 6) + (str[3] & 0x3F); |
jbe@0 | 150 if (uc < 0x10000 || uc >= 0x110000) uc = -1; |
jbe@0 | 151 break; |
jbe@0 | 152 } |
jbe@7 | 153 if (uc < 0 || ((uc & 0xFFFF) >= 0xFFFE)) |
jbe@7 | 154 return UTF8PROC_ERROR_INVALIDUTF8; |
jbe@0 | 155 *dst = uc; |
jbe@0 | 156 return length; |
jbe@0 | 157 } |
jbe@0 | 158 |
jbe@7 | 159 bool utf8proc_codepoint_valid(int32_t uc) { |
jbe@7 | 160 if (uc < 0 || uc >= 0x110000 || |
jbe@7 | 161 ((uc & 0xFFFF) >= 0xFFFE) || (uc >= 0xD800 && uc < 0xE000) || |
jbe@7 | 162 (uc >= 0xFDD0 && uc < 0xFDF0)) return false; |
jbe@7 | 163 else return true; |
jbe@7 | 164 } |
jbe@7 | 165 |
jbe@0 | 166 ssize_t utf8proc_encode_char(int32_t uc, uint8_t *dst) { |
jbe@0 | 167 if (uc < 0x00) { |
jbe@0 | 168 return 0; |
jbe@0 | 169 } else if (uc < 0x80) { |
jbe@0 | 170 dst[0] = uc; |
jbe@0 | 171 return 1; |
jbe@0 | 172 } else if (uc < 0x800) { |
jbe@0 | 173 dst[0] = 0xC0 + (uc >> 6); |
jbe@0 | 174 dst[1] = 0x80 + (uc & 0x3F); |
jbe@0 | 175 return 2; |
jbe@2 | 176 } else if (uc == 0xFFFF) { |
jbe@2 | 177 dst[0] = 0xFF; |
jbe@2 | 178 return 1; |
jbe@2 | 179 } else if (uc == 0xFFFE) { |
jbe@2 | 180 dst[0] = 0xFE; |
jbe@2 | 181 return 1; |
jbe@0 | 182 } else if (uc < 0x10000) { |
jbe@0 | 183 dst[0] = 0xE0 + (uc >> 12); |
jbe@0 | 184 dst[1] = 0x80 + ((uc >> 6) & 0x3F); |
jbe@0 | 185 dst[2] = 0x80 + (uc & 0x3F); |
jbe@0 | 186 return 3; |
jbe@0 | 187 } else if (uc < 0x110000) { |
jbe@0 | 188 dst[0] = 0xF0 + (uc >> 18); |
jbe@0 | 189 dst[1] = 0x80 + ((uc >> 12) & 0x3F); |
jbe@0 | 190 dst[2] = 0x80 + ((uc >> 6) & 0x3F); |
jbe@0 | 191 dst[3] = 0x80 + (uc & 0x3F); |
jbe@0 | 192 return 4; |
jbe@0 | 193 } else return 0; |
jbe@0 | 194 } |
jbe@0 | 195 |
jbe@0 | 196 const utf8proc_property_t *utf8proc_get_property(int32_t uc) { |
jbe@10 | 197 /* ASSERT: uc >= 0 && uc < 0x110000 */ |
jbe@0 | 198 return utf8proc_properties + ( |
jbe@0 | 199 utf8proc_stage2table[ |
jbe@0 | 200 utf8proc_stage1table[uc >> 8] + (uc & 0xFF) |
jbe@0 | 201 ] |
jbe@0 | 202 ); |
jbe@0 | 203 } |
jbe@0 | 204 |
jbe@3 | 205 #define utf8proc_decompose_lump(replacement_uc) \ |
jbe@3 | 206 return utf8proc_decompose_char((replacement_uc), dst, bufsize, \ |
jbe@3 | 207 options & ~UTF8PROC_LUMP, last_boundclass) |
jbe@3 | 208 |
jbe@0 | 209 ssize_t utf8proc_decompose_char(int32_t uc, int32_t *dst, ssize_t bufsize, |
jbe@2 | 210 int options, int *last_boundclass) { |
jbe@10 | 211 /* ASSERT: uc >= 0 && uc < 0x110000 */ |
jbe@0 | 212 const utf8proc_property_t *property; |
jbe@3 | 213 utf8proc_propval_t category; |
jbe@0 | 214 int32_t hangul_sindex; |
jbe@0 | 215 property = utf8proc_get_property(uc); |
jbe@3 | 216 category = property->category; |
jbe@0 | 217 hangul_sindex = uc - UTF8PROC_HANGUL_SBASE; |
jbe@3 | 218 if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) { |
jbe@3 | 219 if (hangul_sindex >= 0 && hangul_sindex < UTF8PROC_HANGUL_SCOUNT) { |
jbe@3 | 220 int32_t hangul_tindex; |
jbe@3 | 221 if (bufsize >= 1) { |
jbe@3 | 222 dst[0] = UTF8PROC_HANGUL_LBASE + |
jbe@3 | 223 hangul_sindex / UTF8PROC_HANGUL_NCOUNT; |
jbe@3 | 224 if (bufsize >= 2) dst[1] = UTF8PROC_HANGUL_VBASE + |
jbe@3 | 225 (hangul_sindex % UTF8PROC_HANGUL_NCOUNT) / UTF8PROC_HANGUL_TCOUNT; |
jbe@3 | 226 } |
jbe@3 | 227 hangul_tindex = hangul_sindex % UTF8PROC_HANGUL_TCOUNT; |
jbe@3 | 228 if (!hangul_tindex) return 2; |
jbe@3 | 229 if (bufsize >= 3) dst[2] = UTF8PROC_HANGUL_TBASE + hangul_tindex; |
jbe@3 | 230 return 3; |
jbe@0 | 231 } |
jbe@3 | 232 } |
jbe@3 | 233 if (options & UTF8PROC_REJECTNA) { |
jbe@3 | 234 if (!category) return UTF8PROC_ERROR_NOTASSIGNED; |
jbe@3 | 235 } |
jbe@3 | 236 if (options & UTF8PROC_IGNORE) { |
jbe@3 | 237 if (property->ignorable) return 0; |
jbe@3 | 238 } |
jbe@3 | 239 if (options & UTF8PROC_LUMP) { |
jbe@3 | 240 if (category == UTF8PROC_CATEGORY_ZS) utf8proc_decompose_lump(0x0020); |
jbe@3 | 241 if (uc == 0x2018 || uc == 0x2019 || uc == 0x02BC || uc == 0x02C8) |
jbe@3 | 242 utf8proc_decompose_lump(0x0027); |
jbe@3 | 243 if (category == UTF8PROC_CATEGORY_PD || uc == 0x2212) |
jbe@3 | 244 utf8proc_decompose_lump(0x002D); |
jbe@3 | 245 if (uc == 0x2044 || uc == 0x2215) utf8proc_decompose_lump(0x002F); |
jbe@3 | 246 if (uc == 0x2236) utf8proc_decompose_lump(0x003A); |
jbe@3 | 247 if (uc == 0x2039 || uc == 0x2329 || uc == 0x3008) |
jbe@3 | 248 utf8proc_decompose_lump(0x003C); |
jbe@3 | 249 if (uc == 0x203A || uc == 0x232A || uc == 0x3009) |
jbe@3 | 250 utf8proc_decompose_lump(0x003E); |
jbe@3 | 251 if (uc == 0x2216) utf8proc_decompose_lump(0x005C); |
jbe@3 | 252 if (uc == 0x02C4 || uc == 0x02C6 || uc == 0x2038 || uc == 0x2303) |
jbe@3 | 253 utf8proc_decompose_lump(0x005E); |
jbe@3 | 254 if (category == UTF8PROC_CATEGORY_PC || uc == 0x02CD) |
jbe@3 | 255 utf8proc_decompose_lump(0x005F); |
jbe@3 | 256 if (uc == 0x02CB) utf8proc_decompose_lump(0x0060); |
jbe@3 | 257 if (uc == 0x2223) utf8proc_decompose_lump(0x007C); |
jbe@3 | 258 if (uc == 0x223C) utf8proc_decompose_lump(0x007E); |
jbe@3 | 259 if ((options & UTF8PROC_NLF2LS) && (options & UTF8PROC_NLF2PS)) { |
jbe@3 | 260 if (category == UTF8PROC_CATEGORY_ZL || |
jbe@3 | 261 category == UTF8PROC_CATEGORY_ZP) |
jbe@3 | 262 utf8proc_decompose_lump(0x000A); |
jbe@3 | 263 } |
jbe@3 | 264 } |
jbe@3 | 265 if (options & UTF8PROC_STRIPMARK) { |
jbe@3 | 266 if (category == UTF8PROC_CATEGORY_MN || |
jbe@3 | 267 category == UTF8PROC_CATEGORY_MC || |
jbe@3 | 268 category == UTF8PROC_CATEGORY_ME) return 0; |
jbe@3 | 269 } |
jbe@3 | 270 if (options & UTF8PROC_CASEFOLD) { |
jbe@3 | 271 if (property->casefold_mapping) { |
jbe@3 | 272 const int32_t *casefold_entry; |
jbe@3 | 273 ssize_t written = 0; |
jbe@3 | 274 for (casefold_entry = property->casefold_mapping; |
jbe@3 | 275 *casefold_entry >= 0; casefold_entry++) { |
jbe@3 | 276 written += utf8proc_decompose_char(*casefold_entry, dst+written, |
jbe@3 | 277 (bufsize > written) ? (bufsize - written) : 0, options, |
jbe@3 | 278 last_boundclass); |
jbe@3 | 279 if (written < 0) return UTF8PROC_ERROR_OVERFLOW; |
jbe@3 | 280 } |
jbe@3 | 281 return written; |
jbe@3 | 282 } |
jbe@3 | 283 } |
jbe@3 | 284 if (options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) { |
jbe@3 | 285 if (property->decomp_mapping && |
jbe@3 | 286 (!property->decomp_type || (options & UTF8PROC_COMPAT))) { |
jbe@3 | 287 const int32_t *decomp_entry; |
jbe@3 | 288 ssize_t written = 0; |
jbe@3 | 289 for (decomp_entry = property->decomp_mapping; |
jbe@3 | 290 *decomp_entry >= 0; decomp_entry++) { |
jbe@3 | 291 written += utf8proc_decompose_char(*decomp_entry, dst+written, |
jbe@3 | 292 (bufsize > written) ? (bufsize - written) : 0, options, |
jbe@2 | 293 last_boundclass); |
jbe@3 | 294 if (written < 0) return UTF8PROC_ERROR_OVERFLOW; |
jbe@3 | 295 } |
jbe@3 | 296 return written; |
jbe@0 | 297 } |
jbe@3 | 298 } |
jbe@3 | 299 if (options & UTF8PROC_CHARBOUND) { |
jbe@2 | 300 bool boundary; |
jbe@2 | 301 int tbc, lbc; |
jbe@2 | 302 tbc = |
jbe@2 | 303 (uc == 0x000D) ? UTF8PROC_BOUNDCLASS_CR : |
jbe@2 | 304 (uc == 0x000A) ? UTF8PROC_BOUNDCLASS_LF : |
jbe@2 | 305 ((category == UTF8PROC_CATEGORY_ZL || |
jbe@2 | 306 category == UTF8PROC_CATEGORY_ZP || |
jbe@2 | 307 category == UTF8PROC_CATEGORY_CC || |
jbe@2 | 308 category == UTF8PROC_CATEGORY_CF) && |
jbe@2 | 309 !(uc == 0x200C || uc == 0x200D)) ? UTF8PROC_BOUNDCLASS_CONTROL : |
jbe@2 | 310 property->extend ? UTF8PROC_BOUNDCLASS_EXTEND : |
jbe@2 | 311 ((uc >= UTF8PROC_HANGUL_L_START && uc < UTF8PROC_HANGUL_L_END) || |
jbe@2 | 312 uc == UTF8PROC_HANGUL_L_FILLER) ? UTF8PROC_BOUNDCLASS_L : |
jbe@2 | 313 (uc >= UTF8PROC_HANGUL_V_START && uc < UTF8PROC_HANGUL_V_END) ? |
jbe@2 | 314 UTF8PROC_BOUNDCLASS_V : |
jbe@2 | 315 (uc >= UTF8PROC_HANGUL_T_START && uc < UTF8PROC_HANGUL_T_END) ? |
jbe@2 | 316 UTF8PROC_BOUNDCLASS_T : |
jbe@2 | 317 (uc >= UTF8PROC_HANGUL_S_START && uc < UTF8PROC_HANGUL_S_END) ? ( |
jbe@2 | 318 ((uc-UTF8PROC_HANGUL_SBASE) % UTF8PROC_HANGUL_TCOUNT == 0) ? |
jbe@2 | 319 UTF8PROC_BOUNDCLASS_LV : UTF8PROC_BOUNDCLASS_LVT |
jbe@2 | 320 ) : |
jbe@2 | 321 UTF8PROC_BOUNDCLASS_OTHER; |
jbe@2 | 322 lbc = *last_boundclass; |
jbe@2 | 323 boundary = |
jbe@2 | 324 (tbc == UTF8PROC_BOUNDCLASS_EXTEND) ? false : |
jbe@2 | 325 (lbc == UTF8PROC_BOUNDCLASS_START) ? true : |
jbe@2 | 326 (lbc == UTF8PROC_BOUNDCLASS_CR && |
jbe@2 | 327 tbc == UTF8PROC_BOUNDCLASS_LF) ? false : |
jbe@2 | 328 (lbc == UTF8PROC_BOUNDCLASS_CONTROL) ? true : |
jbe@2 | 329 (tbc == UTF8PROC_BOUNDCLASS_CONTROL) ? true : |
jbe@2 | 330 (lbc == UTF8PROC_BOUNDCLASS_L && |
jbe@2 | 331 (tbc == UTF8PROC_BOUNDCLASS_L || |
jbe@2 | 332 tbc == UTF8PROC_BOUNDCLASS_V || |
jbe@2 | 333 tbc == UTF8PROC_BOUNDCLASS_LV || |
jbe@2 | 334 tbc == UTF8PROC_BOUNDCLASS_LVT)) ? false : |
jbe@2 | 335 ((lbc == UTF8PROC_BOUNDCLASS_LV || |
jbe@2 | 336 lbc == UTF8PROC_BOUNDCLASS_V) && |
jbe@2 | 337 (tbc == UTF8PROC_BOUNDCLASS_V || |
jbe@2 | 338 tbc == UTF8PROC_BOUNDCLASS_T)) ? false : |
jbe@2 | 339 ((lbc == UTF8PROC_BOUNDCLASS_LVT || |
jbe@2 | 340 lbc == UTF8PROC_BOUNDCLASS_T) && |
jbe@2 | 341 tbc == UTF8PROC_BOUNDCLASS_T) ? false : |
jbe@2 | 342 true; |
jbe@2 | 343 *last_boundclass = tbc; |
jbe@2 | 344 if (boundary) { |
jbe@2 | 345 if (bufsize >= 1) dst[0] = 0xFFFF; |
jbe@2 | 346 if (bufsize >= 2) dst[1] = uc; |
jbe@2 | 347 return 2; |
jbe@2 | 348 } |
jbe@0 | 349 } |
jbe@2 | 350 if (bufsize >= 1) *dst = uc; |
jbe@2 | 351 return 1; |
jbe@0 | 352 } |
jbe@0 | 353 |
jbe@7 | 354 ssize_t utf8proc_decompose( |
jbe@7 | 355 const uint8_t *str, ssize_t strlen, |
jbe@7 | 356 int32_t *buffer, ssize_t bufsize, int options |
jbe@7 | 357 ) { |
jbe@10 | 358 /* strlen will be ignored, if UTF8PROC_NULLTERM is set in options */ |
jbe@0 | 359 ssize_t wpos = 0; |
jbe@3 | 360 if ((options & UTF8PROC_COMPOSE) && (options & UTF8PROC_DECOMPOSE)) |
jbe@3 | 361 return UTF8PROC_ERROR_INVALIDOPTS; |
jbe@3 | 362 if ((options & UTF8PROC_STRIPMARK) && |
jbe@3 | 363 !(options & UTF8PROC_COMPOSE) && !(options & UTF8PROC_DECOMPOSE)) |
jbe@3 | 364 return UTF8PROC_ERROR_INVALIDOPTS; |
jbe@0 | 365 { |
jbe@0 | 366 int32_t uc; |
jbe@0 | 367 ssize_t rpos = 0; |
jbe@0 | 368 ssize_t decomp_result; |
jbe@2 | 369 int boundclass = UTF8PROC_BOUNDCLASS_START; |
jbe@0 | 370 while (1) { |
jbe@0 | 371 if (options & UTF8PROC_NULLTERM) { |
jbe@0 | 372 rpos += utf8proc_iterate(str + rpos, -1, &uc); |
jbe@10 | 373 /* checking of return value is not neccessary, |
jbe@10 | 374 as 'uc' is < 0 in case of error */ |
jbe@0 | 375 if (uc < 0) return UTF8PROC_ERROR_INVALIDUTF8; |
jbe@0 | 376 if (rpos < 0) return UTF8PROC_ERROR_OVERFLOW; |
jbe@0 | 377 if (uc == 0) break; |
jbe@0 | 378 } else { |
jbe@0 | 379 if (rpos >= strlen) break; |
jbe@0 | 380 rpos += utf8proc_iterate(str + rpos, strlen - rpos, &uc); |
jbe@0 | 381 if (uc < 0) return UTF8PROC_ERROR_INVALIDUTF8; |
jbe@0 | 382 } |
jbe@0 | 383 decomp_result = utf8proc_decompose_char( |
jbe@2 | 384 uc, buffer + wpos, (bufsize > wpos) ? (bufsize - wpos) : 0, options, |
jbe@2 | 385 &boundclass |
jbe@0 | 386 ); |
jbe@0 | 387 if (decomp_result < 0) return decomp_result; |
jbe@0 | 388 wpos += decomp_result; |
jbe@10 | 389 /* prohibiting integer overflows due to too long strings: */ |
jbe@0 | 390 if (wpos < 0 || wpos > SSIZE_MAX/sizeof(int32_t)/2) |
jbe@0 | 391 return UTF8PROC_ERROR_OVERFLOW; |
jbe@0 | 392 } |
jbe@0 | 393 } |
jbe@2 | 394 if ((options & (UTF8PROC_COMPOSE|UTF8PROC_DECOMPOSE)) && bufsize >= wpos) { |
jbe@0 | 395 ssize_t pos = 0; |
jbe@0 | 396 while (pos < wpos-1) { |
jbe@0 | 397 int32_t uc1, uc2; |
jbe@0 | 398 const utf8proc_property_t *property1, *property2; |
jbe@0 | 399 uc1 = buffer[pos]; |
jbe@0 | 400 uc2 = buffer[pos+1]; |
jbe@0 | 401 property1 = utf8proc_get_property(uc1); |
jbe@0 | 402 property2 = utf8proc_get_property(uc2); |
jbe@0 | 403 if (property1->combining_class > property2->combining_class && |
jbe@0 | 404 property2->combining_class > 0) { |
jbe@0 | 405 buffer[pos] = uc2; |
jbe@0 | 406 buffer[pos+1] = uc1; |
jbe@0 | 407 if (pos > 0) pos--; else pos++; |
jbe@0 | 408 } else { |
jbe@0 | 409 pos++; |
jbe@0 | 410 } |
jbe@0 | 411 } |
jbe@0 | 412 } |
jbe@0 | 413 return wpos; |
jbe@0 | 414 } |
jbe@0 | 415 |
jbe@0 | 416 ssize_t utf8proc_reencode(int32_t *buffer, ssize_t length, int options) { |
jbe@10 | 417 /* UTF8PROC_NULLTERM option will be ignored, 'length' is never ignored |
jbe@10 | 418 ASSERT: 'buffer' has one spare byte of free space at the end! */ |
jbe@0 | 419 if (options & (UTF8PROC_NLF2LS | UTF8PROC_NLF2PS | UTF8PROC_STRIPCC)) { |
jbe@0 | 420 ssize_t rpos; |
jbe@0 | 421 ssize_t wpos = 0; |
jbe@0 | 422 int32_t uc; |
jbe@0 | 423 for (rpos = 0; rpos < length; rpos++) { |
jbe@0 | 424 uc = buffer[rpos]; |
jbe@0 | 425 if (uc == 0x000D && rpos < length-1 && buffer[rpos+1] == 0x000A) rpos++; |
jbe@0 | 426 if (uc == 0x000A || uc == 0x000D || uc == 0x0085 || |
jbe@0 | 427 ((options & UTF8PROC_STRIPCC) && (uc == 0x000B || uc == 0x000C))) { |
jbe@0 | 428 if (options & UTF8PROC_NLF2LS) { |
jbe@0 | 429 if (options & UTF8PROC_NLF2PS) { |
jbe@0 | 430 buffer[wpos++] = 0x000A; |
jbe@0 | 431 } else { |
jbe@0 | 432 buffer[wpos++] = 0x2028; |
jbe@0 | 433 } |
jbe@0 | 434 } else { |
jbe@0 | 435 if (options & UTF8PROC_NLF2PS) { |
jbe@0 | 436 buffer[wpos++] = 0x2029; |
jbe@0 | 437 } else { |
jbe@0 | 438 buffer[wpos++] = 0x0020; |
jbe@0 | 439 } |
jbe@0 | 440 } |
jbe@0 | 441 } else if ((options & UTF8PROC_STRIPCC) && |
jbe@0 | 442 (uc < 0x0020 || (uc >= 0x007F && uc < 0x00A0))) { |
jbe@0 | 443 if (uc == 0x0009) buffer[wpos++] = 0x0020; |
jbe@0 | 444 } else { |
jbe@0 | 445 buffer[wpos++] = uc; |
jbe@0 | 446 } |
jbe@0 | 447 } |
jbe@0 | 448 length = wpos; |
jbe@0 | 449 } |
jbe@0 | 450 if (options & UTF8PROC_COMPOSE) { |
jbe@0 | 451 int32_t *starter = NULL; |
jbe@0 | 452 int32_t current_char; |
jbe@0 | 453 const utf8proc_property_t *starter_property = NULL, *current_property; |
jbe@3 | 454 utf8proc_propval_t max_combining_class = -1; |
jbe@0 | 455 ssize_t rpos; |
jbe@0 | 456 ssize_t wpos = 0; |
jbe@0 | 457 int32_t composition; |
jbe@0 | 458 for (rpos = 0; rpos < length; rpos++) { |
jbe@0 | 459 current_char = buffer[rpos]; |
jbe@0 | 460 current_property = utf8proc_get_property(current_char); |
jbe@0 | 461 if (starter && current_property->combining_class > max_combining_class) { |
jbe@10 | 462 /* combination perhaps possible */ |
jbe@0 | 463 int32_t hangul_lindex; |
jbe@0 | 464 int32_t hangul_sindex; |
jbe@0 | 465 hangul_lindex = *starter - UTF8PROC_HANGUL_LBASE; |
jbe@0 | 466 if (hangul_lindex >= 0 && hangul_lindex < UTF8PROC_HANGUL_LCOUNT) { |
jbe@0 | 467 int32_t hangul_vindex; |
jbe@0 | 468 hangul_vindex = current_char - UTF8PROC_HANGUL_VBASE; |
jbe@0 | 469 if (hangul_vindex >= 0 && hangul_vindex < UTF8PROC_HANGUL_VCOUNT) { |
jbe@0 | 470 *starter = UTF8PROC_HANGUL_SBASE + |
jbe@0 | 471 (hangul_lindex * UTF8PROC_HANGUL_VCOUNT + hangul_vindex) * |
jbe@0 | 472 UTF8PROC_HANGUL_TCOUNT; |
jbe@0 | 473 starter_property = NULL; |
jbe@0 | 474 continue; |
jbe@0 | 475 } |
jbe@0 | 476 } |
jbe@0 | 477 hangul_sindex = *starter - UTF8PROC_HANGUL_SBASE; |
jbe@0 | 478 if (hangul_sindex >= 0 && hangul_sindex < UTF8PROC_HANGUL_SCOUNT && |
jbe@0 | 479 (hangul_sindex % UTF8PROC_HANGUL_TCOUNT) == 0) { |
jbe@0 | 480 int32_t hangul_tindex; |
jbe@0 | 481 hangul_tindex = current_char - UTF8PROC_HANGUL_TBASE; |
jbe@0 | 482 if (hangul_tindex >= 0 && hangul_tindex < UTF8PROC_HANGUL_TCOUNT) { |
jbe@0 | 483 *starter += hangul_tindex; |
jbe@0 | 484 starter_property = NULL; |
jbe@0 | 485 continue; |
jbe@0 | 486 } |
jbe@0 | 487 } |
jbe@0 | 488 if (!starter_property) { |
jbe@0 | 489 starter_property = utf8proc_get_property(*starter); |
jbe@0 | 490 } |
jbe@0 | 491 if (starter_property->comb1st_index >= 0 && |
jbe@0 | 492 current_property->comb2nd_index >= 0) { |
jbe@0 | 493 composition = utf8proc_combinations[ |
jbe@0 | 494 starter_property->comb1st_index + |
jbe@0 | 495 current_property->comb2nd_index |
jbe@0 | 496 ]; |
jbe@0 | 497 if (composition >= 0 && (!(options & UTF8PROC_STABLE) || |
jbe@0 | 498 !(utf8proc_get_property(composition)->comp_exclusion))) { |
jbe@0 | 499 *starter = composition; |
jbe@0 | 500 starter_property = NULL; |
jbe@0 | 501 continue; |
jbe@0 | 502 } |
jbe@0 | 503 } |
jbe@0 | 504 } |
jbe@0 | 505 buffer[wpos] = current_char; |
jbe@0 | 506 if (current_property->combining_class) { |
jbe@0 | 507 if (current_property->combining_class > max_combining_class) { |
jbe@0 | 508 max_combining_class = current_property->combining_class; |
jbe@0 | 509 } |
jbe@0 | 510 } else { |
jbe@0 | 511 starter = buffer + wpos; |
jbe@0 | 512 starter_property = NULL; |
jbe@0 | 513 max_combining_class = -1; |
jbe@0 | 514 } |
jbe@0 | 515 wpos++; |
jbe@0 | 516 } |
jbe@0 | 517 length = wpos; |
jbe@0 | 518 } |
jbe@0 | 519 { |
jbe@0 | 520 ssize_t rpos, wpos = 0; |
jbe@0 | 521 int32_t uc; |
jbe@0 | 522 for (rpos = 0; rpos < length; rpos++) { |
jbe@0 | 523 uc = buffer[rpos]; |
jbe@0 | 524 wpos += utf8proc_encode_char(uc, ((uint8_t *)buffer) + wpos); |
jbe@0 | 525 } |
jbe@0 | 526 ((uint8_t *)buffer)[wpos] = 0; |
jbe@0 | 527 return wpos; |
jbe@0 | 528 } |
jbe@0 | 529 } |
jbe@0 | 530 |
jbe@7 | 531 ssize_t utf8proc_map( |
jbe@7 | 532 const uint8_t *str, ssize_t strlen, uint8_t **dstptr, int options |
jbe@7 | 533 ) { |
jbe@0 | 534 int32_t *buffer; |
jbe@0 | 535 ssize_t result; |
jbe@0 | 536 *dstptr = NULL; |
jbe@0 | 537 result = utf8proc_decompose(str, strlen, NULL, 0, options); |
jbe@0 | 538 if (result < 0) return result; |
jbe@0 | 539 buffer = malloc(result * sizeof(int32_t) + 1); |
jbe@0 | 540 if (!buffer) return UTF8PROC_ERROR_NOMEM; |
jbe@0 | 541 result = utf8proc_decompose(str, strlen, buffer, result, options); |
jbe@0 | 542 if (result < 0) { |
jbe@0 | 543 free(buffer); |
jbe@0 | 544 return result; |
jbe@0 | 545 } |
jbe@0 | 546 result = utf8proc_reencode(buffer, result, options); |
jbe@0 | 547 if (result < 0) { |
jbe@0 | 548 free(buffer); |
jbe@0 | 549 return result; |
jbe@0 | 550 } |
jbe@0 | 551 { |
jbe@0 | 552 int32_t *newptr; |
jbe@10 | 553 newptr = realloc(buffer, (size_t)result+1); |
jbe@0 | 554 if (newptr) buffer = newptr; |
jbe@0 | 555 } |
jbe@0 | 556 *dstptr = (uint8_t *)buffer; |
jbe@0 | 557 return result; |
jbe@0 | 558 } |
jbe@0 | 559 |
jbe@7 | 560 uint8_t *utf8proc_NFD(const uint8_t *str) { |
jbe@0 | 561 uint8_t *retval; |
jbe@2 | 562 utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | |
jbe@2 | 563 UTF8PROC_DECOMPOSE); |
jbe@0 | 564 return retval; |
jbe@0 | 565 } |
jbe@0 | 566 |
jbe@7 | 567 uint8_t *utf8proc_NFC(const uint8_t *str) { |
jbe@0 | 568 uint8_t *retval; |
jbe@0 | 569 utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | |
jbe@0 | 570 UTF8PROC_COMPOSE); |
jbe@0 | 571 return retval; |
jbe@0 | 572 } |
jbe@0 | 573 |
jbe@7 | 574 uint8_t *utf8proc_NFKD(const uint8_t *str) { |
jbe@0 | 575 uint8_t *retval; |
jbe@0 | 576 utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | |
jbe@2 | 577 UTF8PROC_DECOMPOSE | UTF8PROC_COMPAT); |
jbe@0 | 578 return retval; |
jbe@0 | 579 } |
jbe@0 | 580 |
jbe@7 | 581 uint8_t *utf8proc_NFKC(const uint8_t *str) { |
jbe@0 | 582 uint8_t *retval; |
jbe@0 | 583 utf8proc_map(str, 0, &retval, UTF8PROC_NULLTERM | UTF8PROC_STABLE | |
jbe@0 | 584 UTF8PROC_COMPOSE | UTF8PROC_COMPAT); |
jbe@0 | 585 return retval; |
jbe@0 | 586 } |
jbe@0 | 587 |