| /* |
| ******************************************************************************* |
| * Copyright (C) 1996-2005, 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 "ustrenum.h" |
| #include "putilimp.h" |
| #include "utracimp.h" |
| #include "cmemory.h" |
| |
| /****************************************************************************/ |
| /* 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) |
| { |
| 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 |
| UResourceBundle *defaultColl = ures_getByKeyWithFallback(collations, "default", NULL, status); |
| if(U_SUCCESS(*status)) { |
| int32_t defaultKeyLen = 0; |
| const UChar *defaultKey = ures_getString(defaultColl, &defaultKeyLen, status); |
| u_UCharsToChars(defaultKey, keyBuffer, defaultKeyLen); |
| keyBuffer[defaultKeyLen] = 0; |
| } else { |
| *status = U_INTERNAL_PROGRAM_ERROR; |
| return NULL; |
| } |
| ures_close(defaultColl); |
| } |
| collElem = ures_getByKeyWithFallback(collations, keyBuffer, collElem, status); |
| |
| UResourceBundle *binary = NULL; |
| UErrorCode binaryStatus = U_ZERO_ERROR; |
| |
| 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 we use UCA, real locale is root |
| result->rb = ures_open(U_ICUDATA_COLL, "", status); |
| result->elements = ures_open(U_ICUDATA_COLL, "", status); |
| if(U_FAILURE(*status)) { |
| goto clean; |
| } |
| ures_close(b); |
| result->hasRealData = FALSE; |
| } else if(U_SUCCESS(*status)) { |
| binary = ures_getByKey(collElem, "%%CollationBin", NULL, &binaryStatus); |
| |
| if(binaryStatus == 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; |
| } |
| } |
| result->rb = b; |
| result->elements = collElem; |
| } else { /* There is another error, and we're just gonna clean up */ |
| clean: |
| ures_close(b); |
| ures_close(collElem); |
| ures_close(collations); |
| ures_close(binary); |
| return NULL; |
| } |
| |
| result->validLocale = NULL; // default is to use rb info |
| |
| if(loc == NULL) { |
| loc = ures_getLocale(result->rb, status); |
| } |
| result->requestedLocale = (char *)uprv_malloc((uprv_strlen(loc)+1)*sizeof(char)); |
| /* test for NULL */ |
| if (result->requestedLocale == NULL) { |
| *status = U_MEMORY_ALLOCATION_ERROR; |
| ures_close(b); // ??? appears needed |
| ures_close(collElem); |
| ures_close(collations); |
| ures_close(binary); // ??? appears needed |
| return NULL; |
| } |
| uprv_strcpy(result->requestedLocale, loc); |
| |
| ures_close(binary); |
| ures_close(collations); //??? we have to decide on that. Probably affects something :) |
| return result; |
| } |
| |
| U_CAPI UCollator* |
| ucol_open(const char *loc, |
| UErrorCode *status) |
| { |
| 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) |
| { |
| uint32_t listLen = 0; |
| UColTokenParser src; |
| UColAttributeValue norm; |
| UParseError tErr; |
| |
| if(status == NULL || U_FAILURE(*status)){ |
| return 0; |
| } |
| |
| u_init(status); |
| if (U_FAILURE(*status)) { |
| return NULL; |
| } |
| |
| if(rulesLength < -1 || (rules == NULL && rulesLength != 0)) { |
| *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 *UCA = ucol_initUCA(status); |
| |
| if(U_FAILURE(*status)){ |
| return NULL; |
| } |
| |
| ucol_tok_initTokenList(&src, rules, rulesLength, UCA, status); |
| listLen = 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 |
| ucol_tok_closeTokenList(&src); |
| return NULL; |
| } |
| UCollator *result = NULL; |
| UCATableHeader *table = NULL; |
| |
| 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); |
| 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); |
| // 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->dataInfo.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->rb = NULL; |
| result->elements = 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 = 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 { |
| UErrorCode status = U_ZERO_ERROR; |
| if(coll->elements != NULL) { |
| if(U_SUCCESS(status)) { |
| /*Semantic const */ |
| ((UCollator *)coll)->rules = ures_getStringByKey(coll->elements, "Sequence", length, &status); |
| ((UCollator *)coll)->rulesLength = *length; |
| ((UCollator *)coll)->freeRulesOnClose = FALSE; |
| return coll->rules; |
| } |
| } |
| *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) |
| { |
| |
| 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) |
| { |
| return uloc_getAvailable(index); |
| } |
| |
| U_CAPI int32_t U_EXPORT2 |
| ucol_countAvailable() |
| { |
| return uloc_countAvailable(); |
| } |
| |
| #if !UCONFIG_NO_SERVICE |
| U_CAPI UEnumeration* U_EXPORT2 |
| ucol_openAvailableLocales(UErrorCode *status) { |
| // 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* 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) { |
| // hard-coded to accept exactly one collation keyword |
| // modify if additional collation keyword is added later |
| if (U_SUCCESS(*status) && |
| 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: |
| // validLocale is set only if service registration has explicitly set the |
| // requested and valid locales. if this is the case, the actual locale |
| // is considered to be the valid locale. |
| if (coll->validLocale != NULL) { |
| result = coll->validLocale; |
| } else if(coll->elements != NULL) { |
| result = ures_getLocale(coll->elements, status); |
| } |
| break; |
| case ULOC_VALID_LOCALE: |
| if (coll->validLocale != NULL) { |
| result = coll->validLocale; |
| } else if(coll->rb != NULL) { |
| result = ures_getLocale(coll->rb, status); |
| } |
| 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_CAPI void U_EXPORT2 |
| ucol_setReqValidLocales(UCollator *coll, char *requestedLocaleToAdopt, char *validLocaleToAdopt) |
| { |
| 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; |
| } |
| } |
| |
| U_CAPI USet * U_EXPORT2 |
| ucol_getTailoredSet(const UCollator *coll, UErrorCode *status) |
| { |
| if(status == NULL || U_FAILURE(*status)) { |
| return NULL; |
| } |
| if(coll == NULL || coll->UCA == NULL) { |
| *status = U_ILLEGAL_ARGUMENT_ERROR; |
| } |
| UParseError parseError; |
| UColTokenParser src; |
| int32_t rulesLen = 0; |
| const UChar *rules = ucol_getRules(coll, &rulesLen); |
| const UChar *current = NULL; |
| 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 ((current = 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; |
| } |
| |
| U_CAPI UCollator* U_EXPORT2 |
| ucol_safeClone(const UCollator *coll, void *stackBuffer, int32_t * pBufferSize, UErrorCode *status) |
| { |
| UCollator * localCollator; |
| int32_t bufferSizeNeeded = (int32_t)sizeof(UCollator); |
| char *stackBufferChars = (char *)stackBuffer; |
| |
| if (status == NULL || U_FAILURE(*status)){ |
| return 0; |
| } |
| if ((stackBuffer && !pBufferSize) || !coll){ |
| *status = U_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| /* Pointers on 64-bit platforms need to be aligned |
| * on a 64-bit boundry in memory. |
| */ |
| if (U_ALIGNMENT_OFFSET(stackBuffer) != 0) { |
| int32_t offsetUp = (int32_t)U_ALIGNMENT_OFFSET_UP(stackBufferChars); |
| *pBufferSize -= offsetUp; |
| stackBufferChars += offsetUp; |
| } |
| stackBuffer = (void *)stackBufferChars; |
| |
| if (stackBuffer && *pBufferSize <= 0){ /* 'preflighting' request - set needed size into *pBufferSize */ |
| *pBufferSize = bufferSizeNeeded; |
| return 0; |
| } |
| if (!stackBuffer || *pBufferSize < bufferSizeNeeded) { |
| /* allocate one here...*/ |
| int32_t length; |
| const UChar * rules = ucol_getRules(coll, &length); |
| |
| localCollator = ucol_openRules(rules, |
| length, |
| ucol_getAttribute(coll, UCOL_NORMALIZATION_MODE, status), |
| ucol_getStrength(coll), |
| NULL, |
| status); |
| if (U_SUCCESS(*status)) |
| { |
| *status = U_SAFECLONE_ALLOCATED_WARNING; |
| } |
| } else { |
| localCollator = (UCollator *)stackBuffer; |
| uprv_memcpy(localCollator, coll, sizeof(UCollator)); |
| localCollator->freeOnClose = FALSE; |
| localCollator->requestedLocale = NULL; // zero copies of pointers |
| localCollator->validLocale = NULL; |
| } |
| return localCollator; |
| } |
| |
| #endif /* #if !UCONFIG_NO_COLLATION */ |
