The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2007 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "sqlite3_android" |
| 18 | |
| 19 | #include <ctype.h> |
| 20 | #include <stdlib.h> |
| 21 | #include <string.h> |
| 22 | #include <unistd.h> |
| 23 | |
| 24 | #include <unicode/ucol.h> |
| 25 | #include <unicode/ustring.h> |
| 26 | #include <cutils/log.h> |
| 27 | |
| 28 | #include "sqlite3_android.h" |
| 29 | #include "PhoneNumberUtils.h" |
The Android Open Source Project | 455ed29 | 2009-03-13 13:04:22 -0700 | [diff] [blame] | 30 | #include "PhoneticStringUtils.h" |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 31 | |
| 32 | #define ENABLE_ANDROID_LOG 0 |
| 33 | |
| 34 | static int collate16(void *p, int n1, const void *v1, int n2, const void *v2) |
| 35 | { |
| 36 | UCollator *coll = (UCollator *) p; |
| 37 | UCollationResult result = ucol_strcoll(coll, (const UChar *) v1, n1, |
| 38 | (const UChar *) v2, n2); |
| 39 | |
| 40 | if (result == UCOL_LESS) { |
| 41 | return -1; |
| 42 | } else if (result == UCOL_GREATER) { |
| 43 | return 1; |
| 44 | } else { |
| 45 | return 0; |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | static int collate8(void *p, int n1, const void *v1, int n2, const void *v2) |
| 50 | { |
| 51 | UCollator *coll = (UCollator *) p; |
| 52 | UCharIterator i1, i2; |
| 53 | UErrorCode status = U_ZERO_ERROR; |
| 54 | |
| 55 | uiter_setUTF8(&i1, (const char *) v1, n1); |
| 56 | uiter_setUTF8(&i2, (const char *) v2, n2); |
| 57 | |
| 58 | UCollationResult result = ucol_strcollIter(coll, &i1, &i2, &status); |
| 59 | |
| 60 | if (U_FAILURE(status)) { |
| 61 | // LOGE("Collation iterator error: %d\n", status); |
| 62 | } |
| 63 | |
| 64 | if (result == UCOL_LESS) { |
| 65 | return -1; |
| 66 | } else if (result == UCOL_GREATER) { |
| 67 | return 1; |
| 68 | } else { |
| 69 | return 0; |
| 70 | } |
| 71 | } |
| 72 | |
The Android Open Source Project | 455ed29 | 2009-03-13 13:04:22 -0700 | [diff] [blame] | 73 | static void get_phonetically_sortable_string( |
| 74 | sqlite3_context * context, int argc, sqlite3_value ** argv) |
| 75 | { |
| 76 | if (argc != 1) { |
| 77 | sqlite3_result_null(context); |
| 78 | return; |
| 79 | } |
| 80 | char const * src = (char const *)sqlite3_value_text(argv[0]); |
| 81 | char * ret; |
| 82 | size_t len; |
| 83 | |
| 84 | if (!android::GetPhoneticallySortableString(src, &ret, &len)) { |
Daisuke Miyakawa | 0c45e82 | 2009-03-27 19:41:52 -0700 | [diff] [blame] | 85 | // Put this text at the end of a list. |
| 86 | sqlite3_result_text(context, "\xF0\x9F\xBF\xBD", -1, SQLITE_STATIC); |
| 87 | // sqlite3_result_null(context); |
The Android Open Source Project | 455ed29 | 2009-03-13 13:04:22 -0700 | [diff] [blame] | 88 | } else { |
| 89 | sqlite3_result_text(context, ret, len, free); |
| 90 | } |
| 91 | } |
| 92 | |
Daisuke Miyakawa | d28cdc4 | 2009-05-18 14:51:52 +0900 | [diff] [blame] | 93 | static void get_normalized_string( |
| 94 | sqlite3_context * context, int argc, sqlite3_value ** argv) |
| 95 | { |
| 96 | if (argc != 1) { |
| 97 | sqlite3_result_null(context); |
| 98 | return; |
| 99 | } |
| 100 | char const * src = (char const *)sqlite3_value_text(argv[0]); |
| 101 | char * ret; |
| 102 | size_t len; |
| 103 | |
| 104 | if (!android::GetNormalizedString(src, &ret, &len)) { |
| 105 | // Probably broken string. Return 0 length string. |
| 106 | sqlite3_result_text(context, "", -1, SQLITE_STATIC); |
| 107 | } else { |
| 108 | sqlite3_result_text(context, ret, len, free); |
| 109 | } |
| 110 | } |
| 111 | |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 112 | static void phone_numbers_equal(sqlite3_context * context, int argc, sqlite3_value ** argv) |
| 113 | { |
Daisuke Miyakawa | 948a119 | 2009-09-19 19:19:53 -0700 | [diff] [blame^] | 114 | if (argc != 2 && argc != 3) { |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 115 | sqlite3_result_int(context, 0); |
| 116 | return; |
| 117 | } |
| 118 | |
| 119 | char const * num1 = (char const *)sqlite3_value_text(argv[0]); |
| 120 | char const * num2 = (char const *)sqlite3_value_text(argv[1]); |
| 121 | |
Daisuke Miyakawa | 948a119 | 2009-09-19 19:19:53 -0700 | [diff] [blame^] | 122 | bool use_strict = false; |
| 123 | if (argc == 3) { |
| 124 | use_strict = (sqlite3_value_int(argv[2]) != 0); |
| 125 | } |
| 126 | |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 127 | if (num1 == NULL || num2 == NULL) { |
| 128 | sqlite3_result_null(context); |
| 129 | return; |
| 130 | } |
| 131 | |
Daisuke Miyakawa | 948a119 | 2009-09-19 19:19:53 -0700 | [diff] [blame^] | 132 | bool equal = |
| 133 | (use_strict ? |
| 134 | android::phone_number_compare_strict(num1, num2) : |
| 135 | android::phone_number_compare_loose(num1, num2)); |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 136 | |
| 137 | if (equal) { |
| 138 | sqlite3_result_int(context, 1); |
| 139 | } else { |
| 140 | sqlite3_result_int(context, 0); |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | #if ENABLE_ANDROID_LOG |
| 145 | static void android_log(sqlite3_context * context, int argc, sqlite3_value ** argv) |
| 146 | { |
| 147 | char const * tag = "sqlite_trigger"; |
| 148 | char const * msg = ""; |
| 149 | int msgIndex = 0; |
| 150 | |
| 151 | switch (argc) { |
| 152 | case 2: |
| 153 | tag = (char const *)sqlite3_value_text(argv[0]); |
| 154 | if (tag == NULL) { |
| 155 | tag = "sqlite_trigger"; |
| 156 | } |
| 157 | msgIndex = 1; |
| 158 | case 1: |
| 159 | msg = (char const *)sqlite3_value_text(argv[msgIndex]); |
| 160 | if (msg == NULL) { |
| 161 | msg = ""; |
| 162 | } |
| 163 | LOG(LOG_INFO, tag, msg); |
| 164 | sqlite3_result_int(context, 1); |
| 165 | return; |
| 166 | |
| 167 | default: |
| 168 | sqlite3_result_int(context, 0); |
| 169 | return; |
| 170 | } |
| 171 | } |
| 172 | #endif |
| 173 | |
| 174 | static void delete_file(sqlite3_context * context, int argc, sqlite3_value ** argv) |
| 175 | { |
| 176 | if (argc != 1) { |
| 177 | sqlite3_result_int(context, 0); |
| 178 | return; |
| 179 | } |
| 180 | |
| 181 | char const * path = (char const *)sqlite3_value_text(argv[0]); |
| 182 | if (path == NULL) { |
| 183 | sqlite3_result_null(context); |
| 184 | return; |
| 185 | } |
| 186 | |
| 187 | if (strncmp("/sdcard/", path, 8) != 0) { |
| 188 | sqlite3_result_null(context); |
| 189 | return; |
| 190 | } |
Marco Nelissen | 2da78c0 | 2009-05-06 11:08:08 -0700 | [diff] [blame] | 191 | if (strstr(path, "/../") != NULL) { |
| 192 | sqlite3_result_null(context); |
| 193 | return; |
| 194 | } |
| 195 | |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 196 | int err = unlink(path); |
| 197 | if (err != -1) { |
| 198 | // No error occured, return true |
| 199 | sqlite3_result_int(context, 1); |
| 200 | } else { |
| 201 | // An error occured, return false |
| 202 | sqlite3_result_int(context, 0); |
| 203 | } |
| 204 | } |
| 205 | |
| 206 | static void tokenize_auxdata_delete(void * data) |
| 207 | { |
| 208 | sqlite3_stmt * statement = (sqlite3_stmt *)data; |
| 209 | sqlite3_finalize(statement); |
| 210 | } |
| 211 | |
| 212 | static void base16Encode(char* dest, const char* src, uint32_t size) |
| 213 | { |
| 214 | static const char * BASE16_TABLE = "0123456789abcdef"; |
| 215 | for (uint32_t i = 0; i < size; i++) { |
| 216 | char ch = *src++; |
| 217 | *dest++ = BASE16_TABLE[ (ch & 0xf0) >> 4 ]; |
| 218 | *dest++ = BASE16_TABLE[ (ch & 0x0f) ]; |
| 219 | } |
| 220 | } |
| 221 | |
| 222 | struct SqliteUserData { |
| 223 | sqlite3 * handle; |
| 224 | UCollator* collator; |
| 225 | }; |
| 226 | |
| 227 | /** |
| 228 | * This function is invoked as: |
| 229 | * |
Bjorn Bringert | 754d83d | 2009-05-18 11:21:50 +0100 | [diff] [blame] | 230 | * _TOKENIZE('<token_table>', <data_row_id>, <data>, <delimiter>, |
| 231 | * <use_token_index>, <data_tag>) |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 232 | * |
Bjorn Bringert | 754d83d | 2009-05-18 11:21:50 +0100 | [diff] [blame] | 233 | * If <use_token_index> is omitted, it is treated as 0. |
| 234 | * If <data_tag> is omitted, it is treated as NULL. |
Bjorn Bringert | 687f116 | 2009-05-13 22:13:09 +0100 | [diff] [blame] | 235 | * |
| 236 | * It will split <data> on each instance of <delimiter> and insert each token |
Bjorn Bringert | 754d83d | 2009-05-18 11:21:50 +0100 | [diff] [blame] | 237 | * into <token_table>. The following columns in <token_table> are used: |
| 238 | * token TEXT, source INTEGER, token_index INTEGER, tag (any type) |
| 239 | * The token_index column is not required if <use_token_index> is 0. |
| 240 | * The tag column is not required if <data_tag> is NULL. |
Bjorn Bringert | 687f116 | 2009-05-13 22:13:09 +0100 | [diff] [blame] | 241 | * |
| 242 | * One row is inserted for each token in <data>. |
| 243 | * In each inserted row, 'source' is <data_row_id>. |
| 244 | * In the first inserted row, 'token' is the hex collation key of |
| 245 | * the entire <data> string, and 'token_index' is 0. |
| 246 | * In each row I (where 1 <= I < N, and N is the number of tokens in <data>) |
| 247 | * 'token' will be set to the hex collation key of the I:th token (0-based). |
Bjorn Bringert | 754d83d | 2009-05-18 11:21:50 +0100 | [diff] [blame] | 248 | * If <use_token_index> != 0, 'token_index' is set to I. |
| 249 | * If <data_tag> is not NULL, 'tag' is set to <data_tag>. |
Bjorn Bringert | 687f116 | 2009-05-13 22:13:09 +0100 | [diff] [blame] | 250 | * |
| 251 | * In other words, there will be one row for the entire string, |
| 252 | * and one row for each token except the first one. |
| 253 | * |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 254 | * The function returns the number of tokens generated. |
| 255 | */ |
| 256 | static void tokenize(sqlite3_context * context, int argc, sqlite3_value ** argv) |
| 257 | { |
| 258 | //LOGD("enter tokenize"); |
| 259 | int err; |
Bjorn Bringert | 687f116 | 2009-05-13 22:13:09 +0100 | [diff] [blame] | 260 | int useTokenIndex = 0; |
Bjorn Bringert | 754d83d | 2009-05-18 11:21:50 +0100 | [diff] [blame] | 261 | int useDataTag = 0; |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 262 | |
Bjorn Bringert | 754d83d | 2009-05-18 11:21:50 +0100 | [diff] [blame] | 263 | if (!(argc >= 4 || argc <= 6)) { |
| 264 | LOGE("Tokenize requires 4 to 6 arguments"); |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 265 | sqlite3_result_null(context); |
| 266 | return; |
| 267 | } |
| 268 | |
Bjorn Bringert | 687f116 | 2009-05-13 22:13:09 +0100 | [diff] [blame] | 269 | if (argc > 4) { |
| 270 | useTokenIndex = sqlite3_value_int(argv[4]); |
| 271 | } |
| 272 | |
Bjorn Bringert | 754d83d | 2009-05-18 11:21:50 +0100 | [diff] [blame] | 273 | if (argc > 5) { |
| 274 | useDataTag = (sqlite3_value_type(argv[5]) != SQLITE_NULL); |
| 275 | } |
| 276 | |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 277 | sqlite3 * handle = sqlite3_context_db_handle(context); |
| 278 | UCollator* collator = (UCollator*)sqlite3_user_data(context); |
| 279 | char const * tokenTable = (char const *)sqlite3_value_text(argv[0]); |
| 280 | if (tokenTable == NULL) { |
| 281 | LOGE("tokenTable null"); |
| 282 | sqlite3_result_null(context); |
| 283 | return; |
| 284 | } |
| 285 | |
| 286 | // Get or create the prepared statement for the insertions |
| 287 | sqlite3_stmt * statement = (sqlite3_stmt *)sqlite3_get_auxdata(context, 0); |
| 288 | if (!statement) { |
Bjorn Bringert | 754d83d | 2009-05-18 11:21:50 +0100 | [diff] [blame] | 289 | char const * tokenIndexCol = useTokenIndex ? ", token_index" : ""; |
| 290 | char const * tokenIndexParam = useTokenIndex ? ", ?" : ""; |
| 291 | char const * dataTagCol = useDataTag ? ", tag" : ""; |
| 292 | char const * dataTagParam = useDataTag ? ", ?" : ""; |
| 293 | char * sql = sqlite3_mprintf("INSERT INTO %s (token, source%s%s) VALUES (?, ?%s%s);", |
| 294 | tokenTable, tokenIndexCol, dataTagCol, tokenIndexParam, dataTagParam); |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 295 | err = sqlite3_prepare_v2(handle, sql, -1, &statement, NULL); |
| 296 | sqlite3_free(sql); |
| 297 | if (err) { |
| 298 | LOGE("prepare failed"); |
| 299 | sqlite3_result_null(context); |
| 300 | return; |
| 301 | } |
| 302 | // This binds the statement to the table it was compiled against, which is argv[0]. |
| 303 | // If this function is ever called with a different table the finalizer will be called |
| 304 | // and sqlite3_get_auxdata() will return null above, forcing a recompile for the new table. |
| 305 | sqlite3_set_auxdata(context, 0, statement, tokenize_auxdata_delete); |
| 306 | } else { |
| 307 | // Reset the cached statement so that binding the row ID will work properly |
| 308 | sqlite3_reset(statement); |
| 309 | } |
| 310 | |
| 311 | // Bind the row ID of the source row |
| 312 | int64_t rowID = sqlite3_value_int64(argv[1]); |
| 313 | err = sqlite3_bind_int64(statement, 2, rowID); |
| 314 | if (err != SQLITE_OK) { |
| 315 | LOGE("bind failed"); |
| 316 | sqlite3_result_null(context); |
| 317 | return; |
| 318 | } |
| 319 | |
Bjorn Bringert | 754d83d | 2009-05-18 11:21:50 +0100 | [diff] [blame] | 320 | // Bind <data_tag> to the tag column |
| 321 | if (useDataTag) { |
| 322 | int dataTagParamIndex = useTokenIndex ? 4 : 3; |
| 323 | err = sqlite3_bind_value(statement, dataTagParamIndex, argv[5]); |
| 324 | if (err != SQLITE_OK) { |
| 325 | LOGE("bind failed"); |
| 326 | sqlite3_result_null(context); |
| 327 | return; |
| 328 | } |
| 329 | } |
| 330 | |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 331 | // Get the raw bytes for the string to tokenize |
| 332 | // the string will be modified by following code |
| 333 | // however, sqlite did not reuse the string, so it is safe to not dup it |
| 334 | UChar * origData = (UChar *)sqlite3_value_text16(argv[2]); |
| 335 | if (origData == NULL) { |
| 336 | sqlite3_result_null(context); |
| 337 | return; |
| 338 | } |
| 339 | |
| 340 | // Get the raw bytes for the delimiter |
| 341 | const UChar * delim = (const UChar *)sqlite3_value_text16(argv[3]); |
| 342 | if (delim == NULL) { |
| 343 | LOGE("can't get delimiter"); |
| 344 | sqlite3_result_null(context); |
| 345 | return; |
| 346 | } |
| 347 | |
| 348 | UChar * token = NULL; |
| 349 | UChar *state; |
| 350 | int numTokens = 0; |
| 351 | |
| 352 | do { |
| 353 | if (numTokens == 0) { |
| 354 | token = origData; |
| 355 | } |
| 356 | |
| 357 | // Reset the program so we can use it to perform the insert |
| 358 | sqlite3_reset(statement); |
| 359 | UErrorCode status = U_ZERO_ERROR; |
| 360 | char keybuf[1024]; |
| 361 | uint32_t result = ucol_getSortKey(collator, token, -1, (uint8_t*)keybuf, sizeof(keybuf)-1); |
| 362 | if (result > sizeof(keybuf)) { |
| 363 | // TODO allocate memory for this super big string |
| 364 | LOGE("ucol_getSortKey needs bigger buffer %d", result); |
| 365 | break; |
| 366 | } |
| 367 | uint32_t keysize = result-1; |
| 368 | uint32_t base16Size = keysize*2; |
| 369 | char *base16buf = (char*)malloc(base16Size); |
| 370 | base16Encode(base16buf, keybuf, keysize); |
| 371 | err = sqlite3_bind_text(statement, 1, base16buf, base16Size, SQLITE_STATIC); |
| 372 | |
| 373 | if (err != SQLITE_OK) { |
| 374 | LOGE(" sqlite3_bind_text16 error %d", err); |
| 375 | free(base16buf); |
| 376 | break; |
| 377 | } |
| 378 | |
Bjorn Bringert | 687f116 | 2009-05-13 22:13:09 +0100 | [diff] [blame] | 379 | if (useTokenIndex) { |
| 380 | err = sqlite3_bind_int(statement, 3, numTokens); |
| 381 | if (err != SQLITE_OK) { |
| 382 | LOGE(" sqlite3_bind_int error %d", err); |
| 383 | free(base16buf); |
| 384 | break; |
| 385 | } |
| 386 | } |
| 387 | |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 388 | err = sqlite3_step(statement); |
| 389 | free(base16buf); |
| 390 | |
| 391 | if (err != SQLITE_DONE) { |
| 392 | LOGE(" sqlite3_step error %d", err); |
| 393 | break; |
| 394 | } |
| 395 | numTokens++; |
| 396 | if (numTokens == 1) { |
| 397 | // first call |
| 398 | u_strtok_r(origData, delim, &state); |
| 399 | } |
| 400 | } while ((token = u_strtok_r(NULL, delim, &state)) != NULL); |
| 401 | sqlite3_result_int(context, numTokens); |
| 402 | } |
| 403 | |
| 404 | static void localized_collator_dtor(UCollator* collator) |
| 405 | { |
| 406 | ucol_close(collator); |
| 407 | } |
| 408 | |
| 409 | #define LOCALIZED_COLLATOR_NAME "LOCALIZED" |
| 410 | |
| 411 | extern "C" int register_localized_collators(sqlite3* handle, const char* systemLocale, int utf16Storage) |
| 412 | { |
| 413 | int err; |
| 414 | UErrorCode status = U_ZERO_ERROR; |
| 415 | void* icudata; |
| 416 | |
| 417 | UCollator* collator = ucol_open(systemLocale, &status); |
| 418 | if (U_FAILURE(status)) { |
| 419 | return -1; |
| 420 | } |
| 421 | |
| 422 | ucol_setAttribute(collator, UCOL_STRENGTH, UCOL_PRIMARY, &status); |
| 423 | if (U_FAILURE(status)) { |
| 424 | return -1; |
| 425 | } |
| 426 | |
| 427 | status = U_ZERO_ERROR; |
| 428 | char buf[1024]; |
| 429 | int n = ucol_getShortDefinitionString(collator, NULL, buf, 1024, &status); |
| 430 | |
| 431 | if (utf16Storage) { |
| 432 | err = sqlite3_create_collation_v2(handle, LOCALIZED_COLLATOR_NAME, SQLITE_UTF16, collator, |
| 433 | collate16, (void(*)(void*))localized_collator_dtor); |
| 434 | } else { |
| 435 | err = sqlite3_create_collation_v2(handle, LOCALIZED_COLLATOR_NAME, SQLITE_UTF8, collator, |
| 436 | collate8, (void(*)(void*))localized_collator_dtor); |
| 437 | } |
| 438 | if (err != SQLITE_OK) { |
| 439 | return err; |
| 440 | } |
| 441 | |
| 442 | // Register the _TOKENIZE function |
| 443 | err = sqlite3_create_function(handle, "_TOKENIZE", 4, SQLITE_UTF16, collator, tokenize, NULL, NULL); |
| 444 | if (err != SQLITE_OK) { |
| 445 | return err; |
Bjorn Bringert | 687f116 | 2009-05-13 22:13:09 +0100 | [diff] [blame] | 446 | } |
| 447 | err = sqlite3_create_function(handle, "_TOKENIZE", 5, SQLITE_UTF16, collator, tokenize, NULL, NULL); |
| 448 | if (err != SQLITE_OK) { |
| 449 | return err; |
| 450 | } |
Bjorn Bringert | 754d83d | 2009-05-18 11:21:50 +0100 | [diff] [blame] | 451 | err = sqlite3_create_function(handle, "_TOKENIZE", 6, SQLITE_UTF16, collator, tokenize, NULL, NULL); |
| 452 | if (err != SQLITE_OK) { |
| 453 | return err; |
| 454 | } |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 455 | |
| 456 | return SQLITE_OK; |
| 457 | } |
| 458 | |
| 459 | |
| 460 | extern "C" int register_android_functions(sqlite3 * handle, int utf16Storage) |
| 461 | { |
| 462 | int err; |
| 463 | UErrorCode status = U_ZERO_ERROR; |
| 464 | |
| 465 | UCollator * collator = ucol_open(NULL, &status); |
| 466 | if (U_FAILURE(status)) { |
| 467 | return -1; |
| 468 | } |
| 469 | |
| 470 | if (utf16Storage) { |
| 471 | // Note that text should be stored as UTF-16 |
| 472 | err = sqlite3_exec(handle, "PRAGMA encoding = 'UTF-16'", 0, 0, 0); |
| 473 | if (err != SQLITE_OK) { |
| 474 | return err; |
| 475 | } |
| 476 | |
| 477 | // Register the UNICODE collation |
| 478 | err = sqlite3_create_collation_v2(handle, "UNICODE", SQLITE_UTF16, collator, collate16, |
| 479 | (void(*)(void*))localized_collator_dtor); |
| 480 | } else { |
| 481 | err = sqlite3_create_collation_v2(handle, "UNICODE", SQLITE_UTF8, collator, collate8, |
| 482 | (void(*)(void*))localized_collator_dtor); |
| 483 | } |
| 484 | |
| 485 | if (err != SQLITE_OK) { |
| 486 | return err; |
| 487 | } |
| 488 | |
| 489 | // Register the PHONE_NUM_EQUALS function |
Daisuke Miyakawa | 948a119 | 2009-09-19 19:19:53 -0700 | [diff] [blame^] | 490 | err = sqlite3_create_function( |
| 491 | handle, "PHONE_NUMBERS_EQUAL", 2, |
| 492 | SQLITE_UTF8, NULL, phone_numbers_equal, NULL, NULL); |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 493 | if (err != SQLITE_OK) { |
| 494 | return err; |
| 495 | } |
Daisuke Miyakawa | 948a119 | 2009-09-19 19:19:53 -0700 | [diff] [blame^] | 496 | |
| 497 | // Register the PHONE_NUM_EQUALS function with an additional argument "use_strict" |
| 498 | err = sqlite3_create_function( |
| 499 | handle, "PHONE_NUMBERS_EQUAL", 3, |
| 500 | SQLITE_UTF8, NULL, phone_numbers_equal, NULL, NULL); |
| 501 | if (err != SQLITE_OK) { |
| 502 | return err; |
| 503 | } |
| 504 | |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 505 | // Register the _DELETE_FILE function |
| 506 | err = sqlite3_create_function(handle, "_DELETE_FILE", 1, SQLITE_UTF8, NULL, delete_file, NULL, NULL); |
| 507 | if (err != SQLITE_OK) { |
| 508 | return err; |
| 509 | } |
| 510 | |
| 511 | #if ENABLE_ANDROID_LOG |
| 512 | // Register the _LOG function |
| 513 | err = sqlite3_create_function(handle, "_LOG", 1, SQLITE_UTF8, NULL, android_log, NULL, NULL); |
| 514 | if (err != SQLITE_OK) { |
| 515 | return err; |
| 516 | } |
| 517 | #endif |
| 518 | |
The Android Open Source Project | 455ed29 | 2009-03-13 13:04:22 -0700 | [diff] [blame] | 519 | // Register the GET_PHONETICALLY_SORTABLE_STRING function |
| 520 | err = sqlite3_create_function(handle, |
| 521 | "GET_PHONETICALLY_SORTABLE_STRING", |
| 522 | 1, SQLITE_UTF8, NULL, |
| 523 | get_phonetically_sortable_string, |
| 524 | NULL, NULL); |
| 525 | if (err != SQLITE_OK) { |
| 526 | return err; |
| 527 | } |
| 528 | |
Daisuke Miyakawa | d28cdc4 | 2009-05-18 14:51:52 +0900 | [diff] [blame] | 529 | // Register the GET_NORMALIZED_STRING function |
| 530 | err = sqlite3_create_function(handle, |
| 531 | "GET_NORMALIZED_STRING", |
| 532 | 1, SQLITE_UTF8, NULL, |
| 533 | get_normalized_string, |
| 534 | NULL, NULL); |
| 535 | if (err != SQLITE_OK) { |
| 536 | return err; |
| 537 | } |
| 538 | |
The Android Open Source Project | 7790ef5 | 2009-03-03 19:30:40 -0800 | [diff] [blame] | 539 | return SQLITE_OK; |
| 540 | } |