/* ******************************************************************************* * Copyright (C) 1996-2008, International Business Machines * Corporation and others. All Rights Reserved. ******************************************************************************* * file name: ucol_res.cpp * encoding: US-ASCII * tab size: 8 (not used) * indentation:4 * * Description: * This file contains dependencies that the collation run-time doesn't normally * need. This mainly contains resource bundle usage and collation meta information * * Modification history * Date Name Comments * 1996-1999 various members of ICU team maintained C API for collation framework * 02/16/2001 synwee Added internal method getPrevSpecialCE * 03/01/2001 synwee Added maxexpansion functionality. * 03/16/2001 weiv Collation framework is rewritten in C and made UCA compliant * 12/08/2004 grhoten Split part of ucol.cpp into ucol_res.cpp */ #include "unicode/utypes.h" #if !UCONFIG_NO_COLLATION #include "unicode/uloc.h" #include "unicode/coll.h" #include "unicode/tblcoll.h" #include "unicode/caniter.h" #include "unicode/ustring.h" #include "ucol_bld.h" #include "ucol_imp.h" #include "ucol_tok.h" #include "ucol_elm.h" #include "uresimp.h" #include "ustr_imp.h" #include "cstring.h" #include "umutex.h" #include "ucln_in.h" #include "ustrenum.h" #include "putilimp.h" #include "utracimp.h" #include "cmemory.h" U_NAMESPACE_USE // static UCA. There is only one. Collators don't use it. // It is referenced only in ucol_initUCA and ucol_cleanup static UCollator* _staticUCA = NULL; // static pointer to udata memory. Inited in ucol_initUCA // used for cleanup in ucol_cleanup static UDataMemory* UCA_DATA_MEM = NULL; U_CDECL_BEGIN static UBool U_CALLCONV ucol_res_cleanup(void) { if (UCA_DATA_MEM) { udata_close(UCA_DATA_MEM); UCA_DATA_MEM = NULL; } if (_staticUCA) { ucol_close(_staticUCA); _staticUCA = NULL; } return TRUE; } static UBool U_CALLCONV isAcceptableUCA(void * /*context*/, const char * /*type*/, const char * /*name*/, const UDataInfo *pInfo){ /* context, type & name are intentionally not used */ if( pInfo->size>=20 && pInfo->isBigEndian==U_IS_BIG_ENDIAN && pInfo->charsetFamily==U_CHARSET_FAMILY && pInfo->dataFormat[0]==UCA_DATA_FORMAT_0 && /* dataFormat="UCol" */ pInfo->dataFormat[1]==UCA_DATA_FORMAT_1 && pInfo->dataFormat[2]==UCA_DATA_FORMAT_2 && pInfo->dataFormat[3]==UCA_DATA_FORMAT_3 && pInfo->formatVersion[0]==UCA_FORMAT_VERSION_0 && pInfo->formatVersion[1]>=UCA_FORMAT_VERSION_1// && //pInfo->formatVersion[1]==UCA_FORMAT_VERSION_1 && //pInfo->formatVersion[2]==UCA_FORMAT_VERSION_2 && // Too harsh //pInfo->formatVersion[3]==UCA_FORMAT_VERSION_3 && // Too harsh ) { UVersionInfo UCDVersion; u_getUnicodeVersion(UCDVersion); return (UBool)(pInfo->dataVersion[0]==UCDVersion[0] && pInfo->dataVersion[1]==UCDVersion[1]); //&& pInfo->dataVersion[2]==ucaDataInfo.dataVersion[2] //&& pInfo->dataVersion[3]==ucaDataInfo.dataVersion[3]); } else { return FALSE; } } U_CDECL_END /* do not close UCA returned by ucol_initUCA! */ UCollator * ucol_initUCA(UErrorCode *status) { if(U_FAILURE(*status)) { return NULL; } UBool needsInit; UMTX_CHECK(NULL, (_staticUCA == NULL), needsInit); if(needsInit) { UDataMemory *result = udata_openChoice(NULL, UCA_DATA_TYPE, UCA_DATA_NAME, isAcceptableUCA, NULL, status); if(U_SUCCESS(*status)){ UCollator *newUCA = ucol_initCollator((const UCATableHeader *)udata_getMemory(result), NULL, NULL, status); if(U_SUCCESS(*status)){ umtx_lock(NULL); if(_staticUCA == NULL) { _staticUCA = newUCA; newUCA = NULL; UCA_DATA_MEM = result; result = NULL; } umtx_unlock(NULL); ucln_i18n_registerCleanup(UCLN_I18N_UCOL_RES, ucol_res_cleanup); if(newUCA != NULL) { ucol_close(newUCA); udata_close(result); } // Initalize variables for implicit generation uprv_uca_initImplicitConstants(status); }else{ ucol_close(newUCA); udata_close(result); } } else { udata_close(result); } } return _staticUCA; } U_CAPI void U_EXPORT2 ucol_forgetUCA(void) { _staticUCA = NULL; UCA_DATA_MEM = NULL; } /****************************************************************************/ /* Following are the open/close functions */ /* */ /****************************************************************************/ static UCollator* tryOpeningFromRules(UResourceBundle *collElem, UErrorCode *status) { int32_t rulesLen = 0; const UChar *rules = ures_getStringByKey(collElem, "Sequence", &rulesLen, status); return ucol_openRules(rules, rulesLen, UCOL_DEFAULT, UCOL_DEFAULT, NULL, status); } // API in ucol_imp.h U_CFUNC UCollator* ucol_open_internal(const char *loc, UErrorCode *status) { UErrorCode intStatus = U_ZERO_ERROR; const UCollator* UCA = ucol_initUCA(status); /* New version */ if(U_FAILURE(*status)) return 0; UCollator *result = NULL; UResourceBundle *b = ures_open(U_ICUDATA_COLL, loc, status); /* we try to find stuff from keyword */ UResourceBundle *collations = ures_getByKey(b, "collations", NULL, status); UResourceBundle *collElem = NULL; char keyBuffer[256]; // if there is a keyword, we pick it up and try to get elements if(!uloc_getKeywordValue(loc, "collation", keyBuffer, 256, status)) { // no keyword. we try to find the default setting, which will give us the keyword value intStatus = U_ZERO_ERROR; // finding default value does not affect collation fallback status UResourceBundle *defaultColl = ures_getByKeyWithFallback(collations, "default", NULL, &intStatus); if(U_SUCCESS(intStatus)) { int32_t defaultKeyLen = 0; const UChar *defaultKey = ures_getString(defaultColl, &defaultKeyLen, &intStatus); u_UCharsToChars(defaultKey, keyBuffer, defaultKeyLen); keyBuffer[defaultKeyLen] = 0; } else { *status = U_INTERNAL_PROGRAM_ERROR; return NULL; } ures_close(defaultColl); } collElem = ures_getByKeyWithFallback(collations, keyBuffer, collations, status); collations = NULL; // We just reused the collations object as collElem. UResourceBundle *binary = NULL; if(*status == U_MISSING_RESOURCE_ERROR) { /* We didn't find the tailoring data, we fallback to the UCA */ *status = U_USING_DEFAULT_WARNING; result = ucol_initCollator(UCA->image, result, UCA, status); if (U_FAILURE(*status)) { goto clean; } // if we use UCA, real locale is root ures_close(b); b = ures_open(U_ICUDATA_COLL, "", status); ures_close(collElem); collElem = ures_open(U_ICUDATA_COLL, "", status); if(U_FAILURE(*status)) { goto clean; } result->hasRealData = FALSE; } else if(U_SUCCESS(*status)) { intStatus = U_ZERO_ERROR; binary = ures_getByKey(collElem, "%%CollationBin", NULL, &intStatus); if(intStatus == U_MISSING_RESOURCE_ERROR) { /* we didn't find the binary image, we should use the rules */ binary = NULL; result = tryOpeningFromRules(collElem, status); if(U_FAILURE(*status)) { goto clean; } } else if(U_SUCCESS(*status)) { /* otherwise, we'll pick a collation data that exists */ int32_t len = 0; const uint8_t *inData = ures_getBinary(binary, &len, status); UCATableHeader *colData = (UCATableHeader *)inData; if(uprv_memcmp(colData->UCAVersion, UCA->image->UCAVersion, sizeof(UVersionInfo)) != 0 || uprv_memcmp(colData->UCDVersion, UCA->image->UCDVersion, sizeof(UVersionInfo)) != 0 || colData->version[0] != UCOL_BUILDER_VERSION) { *status = U_DIFFERENT_UCA_VERSION; result = tryOpeningFromRules(collElem, status); } else { if(U_FAILURE(*status)){ goto clean; } if((uint32_t)len > (paddedsize(sizeof(UCATableHeader)) + paddedsize(sizeof(UColOptionSet)))) { result = ucol_initCollator((const UCATableHeader *)inData, result, UCA, status); if(U_FAILURE(*status)){ goto clean; } result->hasRealData = TRUE; } else { result = ucol_initCollator(UCA->image, result, UCA, status); ucol_setOptionsFromHeader(result, (UColOptionSet *)(inData+((const UCATableHeader *)inData)->options), status); if(U_FAILURE(*status)){ goto clean; } result->hasRealData = FALSE; } result->freeImageOnClose = FALSE; } } intStatus = U_ZERO_ERROR; result->rules = ures_getStringByKey(collElem, "Sequence", &result->rulesLength, &intStatus); result->freeRulesOnClose = FALSE; } else { /* There is another error, and we're just gonna clean up */ goto clean; } intStatus = U_ZERO_ERROR; result->ucaRules = ures_getStringByKey(b,"UCARules",NULL,&intStatus); if(loc == NULL) { loc = ures_getLocale(b, status); } result->requestedLocale = uprv_strdup(loc); /* test for NULL */ if (result->requestedLocale == NULL) { *status = U_MEMORY_ALLOCATION_ERROR; goto clean; } loc = ures_getLocale(collElem, status); result->actualLocale = uprv_strdup(loc); /* test for NULL */ if (result->actualLocale == NULL) { *status = U_MEMORY_ALLOCATION_ERROR; goto clean; } loc = ures_getLocale(b, status); result->validLocale = uprv_strdup(loc); /* test for NULL */ if (result->validLocale == NULL) { *status = U_MEMORY_ALLOCATION_ERROR; goto clean; } ures_close(b); ures_close(collElem); ures_close(binary); return result; clean: ures_close(b); ures_close(collElem); ures_close(binary); ucol_close(result); return NULL; } U_CAPI UCollator* ucol_open(const char *loc, UErrorCode *status) { U_NAMESPACE_USE UTRACE_ENTRY_OC(UTRACE_UCOL_OPEN); UTRACE_DATA1(UTRACE_INFO, "locale = \"%s\"", loc); UCollator *result = NULL; u_init(status); #if !UCONFIG_NO_SERVICE result = Collator::createUCollator(loc, status); if (result == NULL) #endif { result = ucol_open_internal(loc, status); } UTRACE_EXIT_PTR_STATUS(result, *status); return result; } U_CAPI UCollator* U_EXPORT2 ucol_openRules( const UChar *rules, int32_t rulesLength, UColAttributeValue normalizationMode, UCollationStrength strength, UParseError *parseError, UErrorCode *status) { UColTokenParser src; UColAttributeValue norm; UParseError tErr; if(status == NULL || U_FAILURE(*status)){ return 0; } u_init(status); if (U_FAILURE(*status)) { return NULL; } if(rules == NULL || rulesLength < -1) { *status = U_ILLEGAL_ARGUMENT_ERROR; return 0; } if(rulesLength == -1) { rulesLength = u_strlen(rules); } if(parseError == NULL){ parseError = &tErr; } switch(normalizationMode) { case UCOL_OFF: case UCOL_ON: case UCOL_DEFAULT: norm = normalizationMode; break; default: *status = U_ILLEGAL_ARGUMENT_ERROR; return 0; } UCollator *result = NULL; UCATableHeader *table = NULL; UCollator *UCA = ucol_initUCA(status); if(U_FAILURE(*status)){ return NULL; } ucol_tok_initTokenList(&src, rules, rulesLength, UCA, status); ucol_tok_assembleTokenList(&src,parseError, status); if(U_FAILURE(*status)) { /* if status is U_ILLEGAL_ARGUMENT_ERROR, src->current points at the offending option */ /* if status is U_INVALID_FORMAT_ERROR, src->current points after the problematic part of the rules */ /* so something might be done here... or on lower level */ #ifdef UCOL_DEBUG if(*status == U_ILLEGAL_ARGUMENT_ERROR) { fprintf(stderr, "bad option starting at offset %i\n", src.current-src.source); } else { fprintf(stderr, "invalid rule just before offset %i\n", src.current-src.source); } #endif goto cleanup; } if(src.resultLen > 0 || src.removeSet != NULL) { /* we have a set of rules, let's make something of it */ /* also, if we wanted to remove some contractions, we should make a tailoring */ table = ucol_assembleTailoringTable(&src, status); if(U_SUCCESS(*status)) { // builder version table->version[0] = UCOL_BUILDER_VERSION; // no tailoring information on this level table->version[1] = table->version[2] = table->version[3] = 0; // set UCD version u_getUnicodeVersion(table->UCDVersion); // set UCA version uprv_memcpy(table->UCAVersion, UCA->image->UCAVersion, sizeof(UVersionInfo)); result = ucol_initCollator(table, 0, UCA, status); if (U_FAILURE(*status)) { goto cleanup; } result->hasRealData = TRUE; result->freeImageOnClose = TRUE; } } else { /* no rules, but no error either */ // must be only options // We will init the collator from UCA result = ucol_initCollator(UCA->image, 0, UCA, status); // Check for null result if (U_FAILURE(*status)) { goto cleanup; } // And set only the options UColOptionSet *opts = (UColOptionSet *)uprv_malloc(sizeof(UColOptionSet)); /* test for NULL */ if (opts == NULL) { *status = U_MEMORY_ALLOCATION_ERROR; goto cleanup; } uprv_memcpy(opts, src.opts, sizeof(UColOptionSet)); ucol_setOptionsFromHeader(result, opts, status); result->freeOptionsOnClose = TRUE; result->hasRealData = FALSE; result->freeImageOnClose = FALSE; } if(U_SUCCESS(*status)) { UChar *newRules; result->dataVersion[0] = UCOL_BUILDER_VERSION; if(rulesLength > 0) { newRules = (UChar *)uprv_malloc((rulesLength+1)*U_SIZEOF_UCHAR); /* test for NULL */ if (newRules == NULL) { *status = U_MEMORY_ALLOCATION_ERROR; goto cleanup; } uprv_memcpy(newRules, rules, rulesLength*U_SIZEOF_UCHAR); newRules[rulesLength]=0; result->rules = newRules; result->rulesLength = rulesLength; result->freeRulesOnClose = TRUE; } result->ucaRules = NULL; result->actualLocale = NULL; result->validLocale = NULL; result->requestedLocale = NULL; ucol_setAttribute(result, UCOL_STRENGTH, strength, status); ucol_setAttribute(result, UCOL_NORMALIZATION_MODE, norm, status); } else { cleanup: if(result != NULL) { ucol_close(result); } else { if(table != NULL) { uprv_free(table); } } result = NULL; } ucol_tok_closeTokenList(&src); return result; } U_CAPI int32_t U_EXPORT2 ucol_getRulesEx(const UCollator *coll, UColRuleOption delta, UChar *buffer, int32_t bufferLen) { UErrorCode status = U_ZERO_ERROR; int32_t len = 0; int32_t UCAlen = 0; const UChar* ucaRules = 0; const UChar *rules = ucol_getRules(coll, &len); if(delta == UCOL_FULL_RULES) { /* take the UCA rules and append real rules at the end */ /* UCA rules will be probably coming from the root RB */ ucaRules = coll->ucaRules; if (ucaRules) { UCAlen = u_strlen(ucaRules); } /* ucaRules = ures_getStringByKey(coll->rb,"UCARules",&UCAlen,&status); UResourceBundle* cresb = ures_getByKeyWithFallback(coll->rb, "collations", NULL, &status); UResourceBundle* uca = ures_getByKeyWithFallback(cresb, "UCA", NULL, &status); ucaRules = ures_getStringByKey(uca,"Sequence",&UCAlen,&status); ures_close(uca); ures_close(cresb); */ } if(U_FAILURE(status)) { return 0; } if(buffer!=0 && bufferLen>0){ *buffer=0; if(UCAlen > 0) { u_memcpy(buffer, ucaRules, uprv_min(UCAlen, bufferLen)); } if(len > 0 && bufferLen > UCAlen) { u_memcpy(buffer+UCAlen, rules, uprv_min(len, bufferLen-UCAlen)); } } return u_terminateUChars(buffer, bufferLen, len+UCAlen, &status); } static const UChar _NUL = 0; U_CAPI const UChar* U_EXPORT2 ucol_getRules( const UCollator *coll, int32_t *length) { if(coll->rules != NULL) { *length = coll->rulesLength; return coll->rules; } else { *length = 0; return &_NUL; } } U_CAPI UBool U_EXPORT2 ucol_equals(const UCollator *source, const UCollator *target) { UErrorCode status = U_ZERO_ERROR; // if pointers are equal, collators are equal if(source == target) { return TRUE; } int32_t i = 0, j = 0; // if any of attributes are different, collators are not equal for(i = 0; i < UCOL_ATTRIBUTE_COUNT; i++) { if(ucol_getAttribute(source, (UColAttribute)i, &status) != ucol_getAttribute(target, (UColAttribute)i, &status) || U_FAILURE(status)) { return FALSE; } } int32_t sourceRulesLen = 0, targetRulesLen = 0; const UChar *sourceRules = ucol_getRules(source, &sourceRulesLen); const UChar *targetRules = ucol_getRules(target, &targetRulesLen); if(sourceRulesLen == targetRulesLen && u_strncmp(sourceRules, targetRules, sourceRulesLen) == 0) { // all the attributes are equal and the rules are equal - collators are equal return(TRUE); } // hard part, need to construct tree from rules and see if they yield the same tailoring UBool result = TRUE; UParseError parseError; UColTokenParser sourceParser, targetParser; int32_t sourceListLen = 0, targetListLen = 0; ucol_tok_initTokenList(&sourceParser, sourceRules, sourceRulesLen, source->UCA, &status); ucol_tok_initTokenList(&targetParser, targetRules, targetRulesLen, target->UCA, &status); sourceListLen = ucol_tok_assembleTokenList(&sourceParser, &parseError, &status); targetListLen = ucol_tok_assembleTokenList(&targetParser, &parseError, &status); if(sourceListLen != targetListLen) { // different number of resets result = FALSE; } else { UColToken *sourceReset = NULL, *targetReset = NULL; UChar *sourceResetString = NULL, *targetResetString = NULL; int32_t sourceStringLen = 0, targetStringLen = 0; for(i = 0; i < sourceListLen; i++) { sourceReset = sourceParser.lh[i].reset; sourceResetString = sourceParser.source+(sourceReset->source & 0xFFFFFF); sourceStringLen = sourceReset->source >> 24; for(j = 0; j < sourceListLen; j++) { targetReset = targetParser.lh[j].reset; targetResetString = targetParser.source+(targetReset->source & 0xFFFFFF); targetStringLen = targetReset->source >> 24; if(sourceStringLen == targetStringLen && (u_strncmp(sourceResetString, targetResetString, sourceStringLen) == 0)) { sourceReset = sourceParser.lh[i].first; targetReset = targetParser.lh[j].first; while(sourceReset != NULL && targetReset != NULL) { sourceResetString = sourceParser.source+(sourceReset->source & 0xFFFFFF); sourceStringLen = sourceReset->source >> 24; targetResetString = targetParser.source+(targetReset->source & 0xFFFFFF); targetStringLen = targetReset->source >> 24; if(sourceStringLen != targetStringLen || (u_strncmp(sourceResetString, targetResetString, sourceStringLen) != 0)) { result = FALSE; goto returnResult; } // probably also need to check the expansions if(sourceReset->expansion) { if(!targetReset->expansion) { result = FALSE; goto returnResult; } else { // compare expansions sourceResetString = sourceParser.source+(sourceReset->expansion& 0xFFFFFF); sourceStringLen = sourceReset->expansion >> 24; targetResetString = targetParser.source+(targetReset->expansion & 0xFFFFFF); targetStringLen = targetReset->expansion >> 24; if(sourceStringLen != targetStringLen || (u_strncmp(sourceResetString, targetResetString, sourceStringLen) != 0)) { result = FALSE; goto returnResult; } } } else { if(targetReset->expansion) { result = FALSE; goto returnResult; } } sourceReset = sourceReset->next; targetReset = targetReset->next; } if(sourceReset != targetReset) { // at least one is not NULL // there are more tailored elements in one list result = FALSE; goto returnResult; } break; } } // couldn't find the reset anchor, so the collators are not equal if(j == sourceListLen) { result = FALSE; goto returnResult; } } } returnResult: ucol_tok_closeTokenList(&sourceParser); ucol_tok_closeTokenList(&targetParser); return result; } U_CAPI int32_t U_EXPORT2 ucol_getDisplayName( const char *objLoc, const char *dispLoc, UChar *result, int32_t resultLength, UErrorCode *status) { U_NAMESPACE_USE if(U_FAILURE(*status)) return -1; UnicodeString dst; if(!(result==NULL && resultLength==0)) { // NULL destination for pure preflighting: empty dummy string // otherwise, alias the destination buffer dst.setTo(result, 0, resultLength); } Collator::getDisplayName(Locale(objLoc), Locale(dispLoc), dst); return dst.extract(result, resultLength, *status); } U_CAPI const char* U_EXPORT2 ucol_getAvailable(int32_t index) { int32_t count = 0; const Locale *loc = Collator::getAvailableLocales(count); if (loc != NULL && index < count) { return loc[index].getName(); } return NULL; } U_CAPI int32_t U_EXPORT2 ucol_countAvailable() { int32_t count = 0; Collator::getAvailableLocales(count); return count; } #if !UCONFIG_NO_SERVICE U_CAPI UEnumeration* U_EXPORT2 ucol_openAvailableLocales(UErrorCode *status) { U_NAMESPACE_USE // This is a wrapper over Collator::getAvailableLocales() if (U_FAILURE(*status)) { return NULL; } StringEnumeration *s = Collator::getAvailableLocales(); if (s == NULL) { *status = U_MEMORY_ALLOCATION_ERROR; return NULL; } return uenum_openStringEnumeration(s, status); } #endif // Note: KEYWORDS[0] != RESOURCE_NAME - alan static const char RESOURCE_NAME[] = "collations"; static const char* const KEYWORDS[] = { "collation" }; #define KEYWORD_COUNT (sizeof(KEYWORDS)/sizeof(KEYWORDS[0])) U_CAPI UEnumeration* U_EXPORT2 ucol_getKeywords(UErrorCode *status) { UEnumeration *result = NULL; if (U_SUCCESS(*status)) { return uenum_openCharStringsEnumeration(KEYWORDS, KEYWORD_COUNT, status); } return result; } U_CAPI UEnumeration* U_EXPORT2 ucol_getKeywordValues(const char *keyword, UErrorCode *status) { if (U_FAILURE(*status)) { return NULL; } // hard-coded to accept exactly one collation keyword // modify if additional collation keyword is added later if (keyword==NULL || uprv_strcmp(keyword, KEYWORDS[0])!=0) { *status = U_ILLEGAL_ARGUMENT_ERROR; return NULL; } return ures_getKeywordValues(U_ICUDATA_COLL, RESOURCE_NAME, status); } U_CAPI int32_t U_EXPORT2 ucol_getFunctionalEquivalent(char* result, int32_t resultCapacity, const char* keyword, const char* locale, UBool* isAvailable, UErrorCode* status) { // N.B.: Resource name is "collations" but keyword is "collation" return ures_getFunctionalEquivalent(result, resultCapacity, U_ICUDATA_COLL, "collations", keyword, locale, isAvailable, TRUE, status); } /* returns the locale name the collation data comes from */ U_CAPI const char * U_EXPORT2 ucol_getLocale(const UCollator *coll, ULocDataLocaleType type, UErrorCode *status) { return ucol_getLocaleByType(coll, type, status); } U_CAPI const char * U_EXPORT2 ucol_getLocaleByType(const UCollator *coll, ULocDataLocaleType type, UErrorCode *status) { const char *result = NULL; if(status == NULL || U_FAILURE(*status)) { return NULL; } UTRACE_ENTRY(UTRACE_UCOL_GETLOCALE); UTRACE_DATA1(UTRACE_INFO, "coll=%p", coll); switch(type) { case ULOC_ACTUAL_LOCALE: result = coll->actualLocale; break; case ULOC_VALID_LOCALE: result = coll->validLocale; break; case ULOC_REQUESTED_LOCALE: result = coll->requestedLocale; break; default: *status = U_ILLEGAL_ARGUMENT_ERROR; } UTRACE_DATA1(UTRACE_INFO, "result = %s", result); UTRACE_EXIT_STATUS(*status); return result; } U_CFUNC void U_EXPORT2 ucol_setReqValidLocales(UCollator *coll, char *requestedLocaleToAdopt, char *validLocaleToAdopt, char *actualLocaleToAdopt) { if (coll) { if (coll->validLocale) { uprv_free(coll->validLocale); } coll->validLocale = validLocaleToAdopt; if (coll->requestedLocale) { // should always have uprv_free(coll->requestedLocale); } coll->requestedLocale = requestedLocaleToAdopt; if (coll->actualLocale) { uprv_free(coll->actualLocale); } coll->actualLocale = actualLocaleToAdopt; } } U_CAPI USet * U_EXPORT2 ucol_getTailoredSet(const UCollator *coll, UErrorCode *status) { U_NAMESPACE_USE if(status == NULL || U_FAILURE(*status)) { return NULL; } if(coll == NULL || coll->UCA == NULL) { *status = U_ILLEGAL_ARGUMENT_ERROR; return NULL; } UParseError parseError; UColTokenParser src; int32_t rulesLen = 0; const UChar *rules = ucol_getRules(coll, &rulesLen); UBool startOfRules = TRUE; // we internally use the C++ class, for the following reasons: // 1. we need to utilize canonical iterator, which is a C++ only class // 2. canonical iterator returns UnicodeStrings - USet cannot take them // 3. USet is internally really UnicodeSet, C is just a wrapper UnicodeSet *tailored = new UnicodeSet(); UnicodeString pattern; UnicodeString empty; CanonicalIterator it(empty, *status); // The idea is to tokenize the rule set. For each non-reset token, // we add all the canonicaly equivalent FCD sequences ucol_tok_initTokenList(&src, rules, rulesLen, coll->UCA, status); while (ucol_tok_parseNextToken(&src, startOfRules, &parseError, status) != NULL) { startOfRules = FALSE; if(src.parsedToken.strength != UCOL_TOK_RESET) { const UChar *stuff = src.source+(src.parsedToken.charsOffset); it.setSource(UnicodeString(stuff, src.parsedToken.charsLen), *status); pattern = it.next(); while(!pattern.isBogus()) { if(Normalizer::quickCheck(pattern, UNORM_FCD, *status) != UNORM_NO) { tailored->add(pattern); } pattern = it.next(); } } } ucol_tok_closeTokenList(&src); return (USet *)tailored; } #endif /* #if !UCONFIG_NO_COLLATION */