Fredrik Roubert | 0596fae | 2017-04-18 21:34:02 +0200 | [diff] [blame] | 1 | // © 2016 and later: Unicode, Inc. and others. |
Fredrik Roubert | 64339d3 | 2016-10-21 19:43:16 +0200 | [diff] [blame] | 2 | // License & terms of use: http://www.unicode.org/copyright.html |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 3 | /* |
| 4 | ********************************************************************** |
ccornelius | fceb398 | 2014-04-16 12:27:14 -0700 | [diff] [blame] | 5 | * Copyright (C) 2001-2014 IBM and others. All rights reserved. |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 6 | ********************************************************************** |
| 7 | * Date Name Description |
| 8 | * 03/22/2000 helena Creation. |
| 9 | ********************************************************************** |
| 10 | */ |
| 11 | |
| 12 | #include "unicode/utypes.h" |
| 13 | |
Claire Ho | 85bf2e2 | 2009-11-24 14:23:02 -0800 | [diff] [blame] | 14 | #if !UCONFIG_NO_COLLATION && !UCONFIG_NO_BREAK_ITERATION |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 15 | |
| 16 | #include "unicode/stsearch.h" |
| 17 | #include "usrchimp.h" |
| 18 | #include "cmemory.h" |
| 19 | |
| 20 | U_NAMESPACE_BEGIN |
| 21 | |
| 22 | UOBJECT_DEFINE_RTTI_IMPLEMENTATION(StringSearch) |
| 23 | |
| 24 | // public constructors and destructors ----------------------------------- |
| 25 | |
| 26 | StringSearch::StringSearch(const UnicodeString &pattern, |
| 27 | const UnicodeString &text, |
| 28 | const Locale &locale, |
| 29 | BreakIterator *breakiter, |
| 30 | UErrorCode &status) : |
| 31 | SearchIterator(text, breakiter), |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 32 | m_pattern_(pattern) |
| 33 | { |
| 34 | if (U_FAILURE(status)) { |
| 35 | m_strsrch_ = NULL; |
| 36 | return; |
| 37 | } |
| 38 | |
| 39 | m_strsrch_ = usearch_open(m_pattern_.getBuffer(), m_pattern_.length(), |
| 40 | m_text_.getBuffer(), m_text_.length(), |
| 41 | locale.getName(), (UBreakIterator *)breakiter, |
| 42 | &status); |
| 43 | uprv_free(m_search_); |
| 44 | m_search_ = NULL; |
| 45 | |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 46 | if (U_SUCCESS(status)) { |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 47 | // m_search_ has been created by the base SearchIterator class |
| 48 | m_search_ = m_strsrch_->search; |
| 49 | } |
| 50 | } |
| 51 | |
| 52 | StringSearch::StringSearch(const UnicodeString &pattern, |
| 53 | const UnicodeString &text, |
| 54 | RuleBasedCollator *coll, |
| 55 | BreakIterator *breakiter, |
| 56 | UErrorCode &status) : |
| 57 | SearchIterator(text, breakiter), |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 58 | m_pattern_(pattern) |
| 59 | { |
| 60 | if (U_FAILURE(status)) { |
| 61 | m_strsrch_ = NULL; |
| 62 | return; |
| 63 | } |
| 64 | if (coll == NULL) { |
| 65 | status = U_ILLEGAL_ARGUMENT_ERROR; |
| 66 | m_strsrch_ = NULL; |
| 67 | return; |
| 68 | } |
| 69 | m_strsrch_ = usearch_openFromCollator(m_pattern_.getBuffer(), |
| 70 | m_pattern_.length(), |
| 71 | m_text_.getBuffer(), |
ccornelius | fceb398 | 2014-04-16 12:27:14 -0700 | [diff] [blame] | 72 | m_text_.length(), coll->toUCollator(), |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 73 | (UBreakIterator *)breakiter, |
| 74 | &status); |
| 75 | uprv_free(m_search_); |
| 76 | m_search_ = NULL; |
| 77 | |
| 78 | if (U_SUCCESS(status)) { |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 79 | // m_search_ has been created by the base SearchIterator class |
| 80 | m_search_ = m_strsrch_->search; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | StringSearch::StringSearch(const UnicodeString &pattern, |
| 85 | CharacterIterator &text, |
| 86 | const Locale &locale, |
| 87 | BreakIterator *breakiter, |
| 88 | UErrorCode &status) : |
| 89 | SearchIterator(text, breakiter), |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 90 | m_pattern_(pattern) |
| 91 | { |
| 92 | if (U_FAILURE(status)) { |
| 93 | m_strsrch_ = NULL; |
| 94 | return; |
| 95 | } |
| 96 | m_strsrch_ = usearch_open(m_pattern_.getBuffer(), m_pattern_.length(), |
| 97 | m_text_.getBuffer(), m_text_.length(), |
| 98 | locale.getName(), (UBreakIterator *)breakiter, |
| 99 | &status); |
| 100 | uprv_free(m_search_); |
| 101 | m_search_ = NULL; |
| 102 | |
| 103 | if (U_SUCCESS(status)) { |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 104 | // m_search_ has been created by the base SearchIterator class |
| 105 | m_search_ = m_strsrch_->search; |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | StringSearch::StringSearch(const UnicodeString &pattern, |
| 110 | CharacterIterator &text, |
| 111 | RuleBasedCollator *coll, |
| 112 | BreakIterator *breakiter, |
| 113 | UErrorCode &status) : |
| 114 | SearchIterator(text, breakiter), |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 115 | m_pattern_(pattern) |
| 116 | { |
| 117 | if (U_FAILURE(status)) { |
| 118 | m_strsrch_ = NULL; |
| 119 | return; |
| 120 | } |
| 121 | if (coll == NULL) { |
| 122 | status = U_ILLEGAL_ARGUMENT_ERROR; |
| 123 | m_strsrch_ = NULL; |
| 124 | return; |
| 125 | } |
| 126 | m_strsrch_ = usearch_openFromCollator(m_pattern_.getBuffer(), |
| 127 | m_pattern_.length(), |
| 128 | m_text_.getBuffer(), |
ccornelius | fceb398 | 2014-04-16 12:27:14 -0700 | [diff] [blame] | 129 | m_text_.length(), coll->toUCollator(), |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 130 | (UBreakIterator *)breakiter, |
| 131 | &status); |
| 132 | uprv_free(m_search_); |
| 133 | m_search_ = NULL; |
| 134 | |
| 135 | if (U_SUCCESS(status)) { |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 136 | // m_search_ has been created by the base SearchIterator class |
| 137 | m_search_ = m_strsrch_->search; |
| 138 | } |
| 139 | } |
| 140 | |
| 141 | StringSearch::StringSearch(const StringSearch &that) : |
| 142 | SearchIterator(that.m_text_, that.m_breakiterator_), |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 143 | m_pattern_(that.m_pattern_) |
| 144 | { |
| 145 | UErrorCode status = U_ZERO_ERROR; |
| 146 | |
| 147 | // Free m_search_ from the superclass |
| 148 | uprv_free(m_search_); |
| 149 | m_search_ = NULL; |
| 150 | |
| 151 | if (that.m_strsrch_ == NULL) { |
| 152 | // This was not a good copy |
| 153 | m_strsrch_ = NULL; |
| 154 | } |
| 155 | else { |
| 156 | // Make a deep copy |
| 157 | m_strsrch_ = usearch_openFromCollator(m_pattern_.getBuffer(), |
| 158 | m_pattern_.length(), |
| 159 | m_text_.getBuffer(), |
| 160 | m_text_.length(), |
| 161 | that.m_strsrch_->collator, |
| 162 | (UBreakIterator *)that.m_breakiterator_, |
| 163 | &status); |
| 164 | if (U_SUCCESS(status)) { |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 165 | // m_search_ has been created by the base SearchIterator class |
| 166 | m_search_ = m_strsrch_->search; |
| 167 | } |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | StringSearch::~StringSearch() |
| 172 | { |
| 173 | if (m_strsrch_ != NULL) { |
| 174 | usearch_close(m_strsrch_); |
| 175 | m_search_ = NULL; |
| 176 | } |
| 177 | } |
| 178 | |
| 179 | StringSearch * |
| 180 | StringSearch::clone() const { |
| 181 | return new StringSearch(*this); |
| 182 | } |
| 183 | |
| 184 | // operator overloading --------------------------------------------- |
| 185 | StringSearch & StringSearch::operator=(const StringSearch &that) |
| 186 | { |
Victor Chang | 92c98b5 | 2021-04-27 16:37:23 +0100 | [diff] [blame^] | 187 | if (this != &that) { |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 188 | UErrorCode status = U_ZERO_ERROR; |
| 189 | m_text_ = that.m_text_; |
| 190 | m_breakiterator_ = that.m_breakiterator_; |
| 191 | m_pattern_ = that.m_pattern_; |
| 192 | // all m_search_ in the parent class is linked up with m_strsrch_ |
| 193 | usearch_close(m_strsrch_); |
| 194 | m_strsrch_ = usearch_openFromCollator(m_pattern_.getBuffer(), |
| 195 | m_pattern_.length(), |
| 196 | m_text_.getBuffer(), |
| 197 | m_text_.length(), |
| 198 | that.m_strsrch_->collator, |
| 199 | NULL, &status); |
Claire Ho | 85bf2e2 | 2009-11-24 14:23:02 -0800 | [diff] [blame] | 200 | // Check null pointer |
| 201 | if (m_strsrch_ != NULL) { |
ccornelius | fceb398 | 2014-04-16 12:27:14 -0700 | [diff] [blame] | 202 | m_search_ = m_strsrch_->search; |
Claire Ho | 85bf2e2 | 2009-11-24 14:23:02 -0800 | [diff] [blame] | 203 | } |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 204 | } |
| 205 | return *this; |
| 206 | } |
| 207 | |
| 208 | UBool StringSearch::operator==(const SearchIterator &that) const |
| 209 | { |
| 210 | if (this == &that) { |
| 211 | return TRUE; |
| 212 | } |
| 213 | if (SearchIterator::operator ==(that)) { |
| 214 | StringSearch &thatsrch = (StringSearch &)that; |
| 215 | return (this->m_pattern_ == thatsrch.m_pattern_ && |
| 216 | this->m_strsrch_->collator == thatsrch.m_strsrch_->collator); |
| 217 | } |
| 218 | return FALSE; |
| 219 | } |
| 220 | |
| 221 | // public get and set methods ---------------------------------------- |
| 222 | |
| 223 | void StringSearch::setOffset(int32_t position, UErrorCode &status) |
| 224 | { |
| 225 | // status checked in usearch_setOffset |
| 226 | usearch_setOffset(m_strsrch_, position, &status); |
| 227 | } |
| 228 | |
| 229 | int32_t StringSearch::getOffset(void) const |
| 230 | { |
| 231 | return usearch_getOffset(m_strsrch_); |
| 232 | } |
| 233 | |
| 234 | void StringSearch::setText(const UnicodeString &text, UErrorCode &status) |
| 235 | { |
| 236 | if (U_SUCCESS(status)) { |
| 237 | m_text_ = text; |
| 238 | usearch_setText(m_strsrch_, text.getBuffer(), text.length(), &status); |
| 239 | } |
| 240 | } |
| 241 | |
| 242 | void StringSearch::setText(CharacterIterator &text, UErrorCode &status) |
| 243 | { |
| 244 | if (U_SUCCESS(status)) { |
| 245 | text.getText(m_text_); |
| 246 | usearch_setText(m_strsrch_, m_text_.getBuffer(), m_text_.length(), &status); |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | RuleBasedCollator * StringSearch::getCollator() const |
| 251 | { |
ccornelius | fceb398 | 2014-04-16 12:27:14 -0700 | [diff] [blame] | 252 | // Note the const_cast. It would be cleaner if this const method returned a const collator. |
| 253 | return RuleBasedCollator::rbcFromUCollator(const_cast<UCollator *>(m_strsrch_->collator)); |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 254 | } |
| 255 | |
| 256 | void StringSearch::setCollator(RuleBasedCollator *coll, UErrorCode &status) |
| 257 | { |
| 258 | if (U_SUCCESS(status)) { |
ccornelius | fceb398 | 2014-04-16 12:27:14 -0700 | [diff] [blame] | 259 | usearch_setCollator(m_strsrch_, coll->toUCollator(), &status); |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 260 | } |
| 261 | } |
| 262 | |
| 263 | void StringSearch::setPattern(const UnicodeString &pattern, |
| 264 | UErrorCode &status) |
| 265 | { |
| 266 | if (U_SUCCESS(status)) { |
| 267 | m_pattern_ = pattern; |
| 268 | usearch_setPattern(m_strsrch_, m_pattern_.getBuffer(), m_pattern_.length(), |
| 269 | &status); |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | const UnicodeString & StringSearch::getPattern() const |
| 274 | { |
| 275 | return m_pattern_; |
| 276 | } |
| 277 | |
| 278 | // public methods ---------------------------------------------------- |
| 279 | |
| 280 | void StringSearch::reset() |
| 281 | { |
| 282 | usearch_reset(m_strsrch_); |
| 283 | } |
| 284 | |
Nikita Iashchenko | 4c0e286 | 2019-11-05 16:38:00 +0000 | [diff] [blame] | 285 | StringSearch * StringSearch::safeClone() const |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 286 | { |
| 287 | UErrorCode status = U_ZERO_ERROR; |
| 288 | StringSearch *result = new StringSearch(m_pattern_, m_text_, |
ccornelius | fceb398 | 2014-04-16 12:27:14 -0700 | [diff] [blame] | 289 | getCollator(), |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 290 | m_breakiterator_, |
| 291 | status); |
| 292 | /* test for NULL */ |
| 293 | if (result == 0) { |
| 294 | status = U_MEMORY_ALLOCATION_ERROR; |
| 295 | return 0; |
| 296 | } |
| 297 | result->setOffset(getOffset(), status); |
| 298 | result->setMatchStart(m_strsrch_->search->matchedIndex); |
| 299 | result->setMatchLength(m_strsrch_->search->matchedLength); |
| 300 | if (U_FAILURE(status)) { |
| 301 | return NULL; |
| 302 | } |
| 303 | return result; |
| 304 | } |
| 305 | |
| 306 | // protected method ------------------------------------------------- |
| 307 | |
| 308 | int32_t StringSearch::handleNext(int32_t position, UErrorCode &status) |
| 309 | { |
| 310 | // values passed here are already in the pre-shift position |
| 311 | if (U_SUCCESS(status)) { |
ccornelius | f9878a2 | 2014-11-20 18:09:39 -0800 | [diff] [blame] | 312 | if (m_strsrch_->pattern.cesLength == 0) { |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 313 | m_search_->matchedIndex = |
| 314 | m_search_->matchedIndex == USEARCH_DONE ? |
| 315 | getOffset() : m_search_->matchedIndex + 1; |
| 316 | m_search_->matchedLength = 0; |
| 317 | ucol_setOffset(m_strsrch_->textIter, m_search_->matchedIndex, |
| 318 | &status); |
| 319 | if (m_search_->matchedIndex == m_search_->textLength) { |
| 320 | m_search_->matchedIndex = USEARCH_DONE; |
| 321 | } |
| 322 | } |
| 323 | else { |
| 324 | // looking at usearch.cpp, this part is shifted out to |
| 325 | // StringSearch instead of SearchIterator because m_strsrch_ is |
| 326 | // not accessible in SearchIterator |
Claire Ho | 85bf2e2 | 2009-11-24 14:23:02 -0800 | [diff] [blame] | 327 | #if 0 |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 328 | if (position + m_strsrch_->pattern.defaultShiftSize |
| 329 | > m_search_->textLength) { |
| 330 | setMatchNotFound(); |
| 331 | return USEARCH_DONE; |
| 332 | } |
Claire Ho | 85bf2e2 | 2009-11-24 14:23:02 -0800 | [diff] [blame] | 333 | #endif |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 334 | if (m_search_->matchedLength <= 0) { |
| 335 | // the flipping direction issue has already been handled |
| 336 | // in next() |
| 337 | // for boundary check purposes. this will ensure that the |
| 338 | // next match will not preceed the current offset |
| 339 | // note search->matchedIndex will always be set to something |
| 340 | // in the code |
| 341 | m_search_->matchedIndex = position - 1; |
| 342 | } |
| 343 | |
| 344 | ucol_setOffset(m_strsrch_->textIter, position, &status); |
Claire Ho | 85bf2e2 | 2009-11-24 14:23:02 -0800 | [diff] [blame] | 345 | |
| 346 | #if 0 |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 347 | for (;;) { |
| 348 | if (m_search_->isCanonicalMatch) { |
| 349 | // can't use exact here since extra accents are allowed. |
| 350 | usearch_handleNextCanonical(m_strsrch_, &status); |
| 351 | } |
| 352 | else { |
| 353 | usearch_handleNextExact(m_strsrch_, &status); |
| 354 | } |
| 355 | if (U_FAILURE(status)) { |
| 356 | return USEARCH_DONE; |
| 357 | } |
| 358 | if (m_breakiterator_ == NULL |
| 359 | #if !UCONFIG_NO_BREAK_ITERATION |
| 360 | || |
| 361 | m_search_->matchedIndex == USEARCH_DONE || |
| 362 | (m_breakiterator_->isBoundary(m_search_->matchedIndex) && |
| 363 | m_breakiterator_->isBoundary(m_search_->matchedIndex + |
| 364 | m_search_->matchedLength)) |
| 365 | #endif |
| 366 | ) { |
| 367 | if (m_search_->matchedIndex == USEARCH_DONE) { |
| 368 | ucol_setOffset(m_strsrch_->textIter, |
| 369 | m_search_->textLength, &status); |
| 370 | } |
| 371 | else { |
| 372 | ucol_setOffset(m_strsrch_->textIter, |
| 373 | m_search_->matchedIndex, &status); |
| 374 | } |
| 375 | return m_search_->matchedIndex; |
| 376 | } |
| 377 | } |
Claire Ho | 85bf2e2 | 2009-11-24 14:23:02 -0800 | [diff] [blame] | 378 | #else |
| 379 | // if m_strsrch_->breakIter is always the same as m_breakiterator_ |
| 380 | // then we don't need to check the match boundaries here because |
| 381 | // usearch_handleNextXXX will already have done it. |
| 382 | if (m_search_->isCanonicalMatch) { |
| 383 | // *could* actually use exact here 'cause no extra accents allowed... |
| 384 | usearch_handleNextCanonical(m_strsrch_, &status); |
| 385 | } else { |
| 386 | usearch_handleNextExact(m_strsrch_, &status); |
| 387 | } |
| 388 | |
| 389 | if (U_FAILURE(status)) { |
| 390 | return USEARCH_DONE; |
| 391 | } |
| 392 | |
| 393 | if (m_search_->matchedIndex == USEARCH_DONE) { |
| 394 | ucol_setOffset(m_strsrch_->textIter, m_search_->textLength, &status); |
| 395 | } else { |
| 396 | ucol_setOffset(m_strsrch_->textIter, m_search_->matchedIndex, &status); |
| 397 | } |
| 398 | |
| 399 | return m_search_->matchedIndex; |
| 400 | #endif |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 401 | } |
| 402 | } |
| 403 | return USEARCH_DONE; |
| 404 | } |
| 405 | |
| 406 | int32_t StringSearch::handlePrev(int32_t position, UErrorCode &status) |
| 407 | { |
| 408 | // values passed here are already in the pre-shift position |
| 409 | if (U_SUCCESS(status)) { |
ccornelius | f9878a2 | 2014-11-20 18:09:39 -0800 | [diff] [blame] | 410 | if (m_strsrch_->pattern.cesLength == 0) { |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 411 | m_search_->matchedIndex = |
| 412 | (m_search_->matchedIndex == USEARCH_DONE ? getOffset() : |
| 413 | m_search_->matchedIndex); |
| 414 | if (m_search_->matchedIndex == 0) { |
| 415 | setMatchNotFound(); |
| 416 | } |
| 417 | else { |
| 418 | m_search_->matchedIndex --; |
| 419 | ucol_setOffset(m_strsrch_->textIter, m_search_->matchedIndex, |
| 420 | &status); |
| 421 | m_search_->matchedLength = 0; |
| 422 | } |
| 423 | } |
| 424 | else { |
| 425 | // looking at usearch.cpp, this part is shifted out to |
| 426 | // StringSearch instead of SearchIterator because m_strsrch_ is |
| 427 | // not accessible in SearchIterator |
Claire Ho | 85bf2e2 | 2009-11-24 14:23:02 -0800 | [diff] [blame] | 428 | #if 0 |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 429 | if (!m_search_->isOverlap && |
| 430 | position - m_strsrch_->pattern.defaultShiftSize < 0) { |
| 431 | setMatchNotFound(); |
| 432 | return USEARCH_DONE; |
| 433 | } |
Claire Ho | 85bf2e2 | 2009-11-24 14:23:02 -0800 | [diff] [blame] | 434 | |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 435 | for (;;) { |
| 436 | if (m_search_->isCanonicalMatch) { |
| 437 | // can't use exact here since extra accents are allowed. |
| 438 | usearch_handlePreviousCanonical(m_strsrch_, &status); |
| 439 | } |
| 440 | else { |
| 441 | usearch_handlePreviousExact(m_strsrch_, &status); |
| 442 | } |
| 443 | if (U_FAILURE(status)) { |
| 444 | return USEARCH_DONE; |
| 445 | } |
| 446 | if (m_breakiterator_ == NULL |
| 447 | #if !UCONFIG_NO_BREAK_ITERATION |
| 448 | || |
| 449 | m_search_->matchedIndex == USEARCH_DONE || |
| 450 | (m_breakiterator_->isBoundary(m_search_->matchedIndex) && |
| 451 | m_breakiterator_->isBoundary(m_search_->matchedIndex + |
| 452 | m_search_->matchedLength)) |
| 453 | #endif |
| 454 | ) { |
| 455 | return m_search_->matchedIndex; |
| 456 | } |
| 457 | } |
Claire Ho | 85bf2e2 | 2009-11-24 14:23:02 -0800 | [diff] [blame] | 458 | #else |
| 459 | ucol_setOffset(m_strsrch_->textIter, position, &status); |
| 460 | |
| 461 | if (m_search_->isCanonicalMatch) { |
| 462 | // *could* use exact match here since extra accents *not* allowed! |
| 463 | usearch_handlePreviousCanonical(m_strsrch_, &status); |
| 464 | } else { |
| 465 | usearch_handlePreviousExact(m_strsrch_, &status); |
| 466 | } |
| 467 | |
| 468 | if (U_FAILURE(status)) { |
| 469 | return USEARCH_DONE; |
| 470 | } |
| 471 | |
| 472 | return m_search_->matchedIndex; |
| 473 | #endif |
Jean-Baptiste Queru | ac04d0b | 2009-07-17 17:11:19 -0700 | [diff] [blame] | 474 | } |
| 475 | |
| 476 | return m_search_->matchedIndex; |
| 477 | } |
| 478 | return USEARCH_DONE; |
| 479 | } |
| 480 | |
| 481 | U_NAMESPACE_END |
| 482 | |
| 483 | #endif /* #if !UCONFIG_NO_COLLATION */ |