Exemple #1
0
/*
 * Initializes the region data from the ICU resource bundles.  The region data
 * contains the basic relationships such as which regions are known, what the numeric
 * codes are, any known aliases, and the territory containment data.
 *
 * If the region data has already loaded, then this method simply returns without doing
 * anything meaningful.
 */
void Region::loadRegionData(UErrorCode &status) {

    // Construct service objs first
    LocalUHashtablePointer newRegionIDMap(uhash_open(uhash_hashUnicodeString, uhash_compareUnicodeString, NULL, &status));
    LocalUHashtablePointer newNumericCodeMap(uhash_open(uhash_hashLong,uhash_compareLong,NULL,&status));
    LocalUHashtablePointer newRegionAliases(uhash_open(uhash_hashUnicodeString,uhash_compareUnicodeString,NULL,&status));
    LocalPointer<DecimalFormat> df(new DecimalFormat(status), status);

    LocalPointer<UVector> continents(new UVector(uprv_deleteUObject, uhash_compareUnicodeString, status), status);
    LocalPointer<UVector> groupings(new UVector(uprv_deleteUObject, uhash_compareUnicodeString, status), status);
    allRegions = new UVector(uprv_deleteUObject, uhash_compareUnicodeString, status);

    LocalUResourceBundlePointer metadata(ures_openDirect(NULL,"metadata",&status));
    LocalUResourceBundlePointer metadataAlias(ures_getByKey(metadata.getAlias(),"alias",NULL,&status));
    LocalUResourceBundlePointer territoryAlias(ures_getByKey(metadataAlias.getAlias(),"territory",NULL,&status));

    LocalUResourceBundlePointer supplementalData(ures_openDirect(NULL,"supplementalData",&status));
    LocalUResourceBundlePointer codeMappings(ures_getByKey(supplementalData.getAlias(),"codeMappings",NULL,&status));

    LocalUResourceBundlePointer idValidity(ures_getByKey(supplementalData.getAlias(),"idValidity",NULL,&status));
    LocalUResourceBundlePointer regionList(ures_getByKey(idValidity.getAlias(),"region",NULL,&status));
    LocalUResourceBundlePointer regionRegular(ures_getByKey(regionList.getAlias(),"regular",NULL,&status));
    LocalUResourceBundlePointer regionMacro(ures_getByKey(regionList.getAlias(),"macroregion",NULL,&status));
    LocalUResourceBundlePointer regionUnknown(ures_getByKey(regionList.getAlias(),"unknown",NULL,&status));

    LocalUResourceBundlePointer territoryContainment(ures_getByKey(supplementalData.getAlias(),"territoryContainment",NULL,&status));
    LocalUResourceBundlePointer worldContainment(ures_getByKey(territoryContainment.getAlias(),"001",NULL,&status));
    LocalUResourceBundlePointer groupingContainment(ures_getByKey(territoryContainment.getAlias(),"grouping",NULL,&status));

    if (U_FAILURE(status)) {
        return;
    }

    // now, initialize
    df->setParseIntegerOnly(TRUE);
    uhash_setValueDeleter(newRegionIDMap.getAlias(), deleteRegion);  // regionIDMap owns objs
    uhash_setKeyDeleter(newRegionAliases.getAlias(), uprv_deleteUObject); // regionAliases owns the string keys


    while ( ures_hasNext(regionRegular.getAlias()) ) {
        UnicodeString regionName = ures_getNextUnicodeString(regionRegular.getAlias(),NULL,&status);
        int32_t rangeMarkerLocation = regionName.indexOf(RANGE_MARKER);
        UChar buf[6];
        regionName.extract(buf,6,status);
        if ( rangeMarkerLocation > 0 ) {
            UChar endRange = regionName.charAt(rangeMarkerLocation+1);
            buf[rangeMarkerLocation] = 0;
            while ( buf[rangeMarkerLocation-1] <= endRange ) {
                LocalPointer<UnicodeString> newRegion(new UnicodeString(buf), status);
                allRegions->addElement(newRegion.orphan(),status);
                buf[rangeMarkerLocation-1]++;
            }
        } else {
            LocalPointer<UnicodeString> newRegion(new UnicodeString(regionName), status);
            allRegions->addElement(newRegion.orphan(),status);
        }
    }

    while ( ures_hasNext(regionMacro.getAlias()) ) {
        UnicodeString regionName = ures_getNextUnicodeString(regionMacro.getAlias(),NULL,&status);
        int32_t rangeMarkerLocation = regionName.indexOf(RANGE_MARKER);
        UChar buf[6];
        regionName.extract(buf,6,status);
        if ( rangeMarkerLocation > 0 ) {
            UChar endRange = regionName.charAt(rangeMarkerLocation+1);
            buf[rangeMarkerLocation] = 0;
            while ( buf[rangeMarkerLocation-1] <= endRange ) {
                LocalPointer<UnicodeString> newRegion(new UnicodeString(buf), status);
                allRegions->addElement(newRegion.orphan(),status);
                buf[rangeMarkerLocation-1]++;
            }
        } else {
            LocalPointer<UnicodeString> newRegion(new UnicodeString(regionName), status);
            allRegions->addElement(newRegion.orphan(),status);
        }
    }

    while ( ures_hasNext(regionUnknown.getAlias()) ) {
        LocalPointer<UnicodeString> regionName (new UnicodeString(ures_getNextUnicodeString(regionUnknown.getAlias(),NULL,&status),status));
        allRegions->addElement(regionName.orphan(),status);
    }

    while ( ures_hasNext(worldContainment.getAlias()) ) {
        UnicodeString *continentName = new UnicodeString(ures_getNextUnicodeString(worldContainment.getAlias(),NULL,&status));
        continents->addElement(continentName,status);
    }

    while ( ures_hasNext(groupingContainment.getAlias()) ) {
        UnicodeString *groupingName = new UnicodeString(ures_getNextUnicodeString(groupingContainment.getAlias(),NULL,&status));
        groupings->addElement(groupingName,status);
    }

    for ( int32_t i = 0 ; i < allRegions->size() ; i++ ) {
        LocalPointer<Region> r(new Region(), status);
        if ( U_FAILURE(status) ) {
           return;
        }
        UnicodeString *regionName = (UnicodeString *)allRegions->elementAt(i);
        r->idStr = *regionName;

        r->idStr.extract(0,r->idStr.length(),r->id,sizeof(r->id),US_INV);
        r->type = URGN_TERRITORY; // Only temporary - figure out the real type later once the aliases are known.

        Formattable result;
        UErrorCode ps = U_ZERO_ERROR;
        df->parse(r->idStr,result,ps);
        if ( U_SUCCESS(ps) ) {
            r->code = result.getLong(); // Convert string to number
            uhash_iput(newNumericCodeMap.getAlias(),r->code,(void *)(r.getAlias()),&status);
            r->type = URGN_SUBCONTINENT;
        } else {
            r->code = -1;
        }
        void* idStrAlias = (void*)&(r->idStr); // about to orphan 'r'. Save this off.
        uhash_put(newRegionIDMap.getAlias(),idStrAlias,(void *)(r.orphan()),&status); // regionIDMap takes ownership
    }

    // Process the territory aliases
    while ( ures_hasNext(territoryAlias.getAlias()) ) {
        LocalUResourceBundlePointer res(ures_getNextResource(territoryAlias.getAlias(),NULL,&status));
        const char *aliasFrom = ures_getKey(res.getAlias());
        LocalPointer<UnicodeString> aliasFromStr(new UnicodeString(aliasFrom, -1, US_INV), status);
        UnicodeString aliasTo = ures_getUnicodeStringByKey(res.getAlias(),"replacement",&status);
        res.adoptInstead(NULL);

        const Region *aliasToRegion = (Region *) uhash_get(newRegionIDMap.getAlias(),&aliasTo);
        Region *aliasFromRegion = (Region *)uhash_get(newRegionIDMap.getAlias(),aliasFromStr.getAlias());

        if ( aliasToRegion != NULL && aliasFromRegion == NULL ) { // This is just an alias from some string to a region
            uhash_put(newRegionAliases.getAlias(),(void *)aliasFromStr.orphan(), (void *)aliasToRegion,&status);
        } else {
            if ( aliasFromRegion == NULL ) { // Deprecated region code not in the master codes list - so need to create a deprecated region for it.
                LocalPointer<Region> newRgn(new Region, status); 
                if ( U_SUCCESS(status) ) {
                    aliasFromRegion = newRgn.orphan();
                } else {
                    return; // error out
                }
                aliasFromRegion->idStr.setTo(*aliasFromStr);
                aliasFromRegion->idStr.extract(0,aliasFromRegion->idStr.length(),aliasFromRegion->id,sizeof(aliasFromRegion->id),US_INV);
                uhash_put(newRegionIDMap.getAlias(),(void *)&(aliasFromRegion->idStr),(void *)aliasFromRegion,&status);
                Formattable result;
                UErrorCode ps = U_ZERO_ERROR;
                df->parse(aliasFromRegion->idStr,result,ps);
                if ( U_SUCCESS(ps) ) {
                    aliasFromRegion->code = result.getLong(); // Convert string to number
                    uhash_iput(newNumericCodeMap.getAlias(),aliasFromRegion->code,(void *)aliasFromRegion,&status);
                } else {
                    aliasFromRegion->code = -1;
                }
                aliasFromRegion->type = URGN_DEPRECATED;
            } else {
                aliasFromRegion->type = URGN_DEPRECATED;
            }

            {
                LocalPointer<UVector> newPreferredValues(new UVector(uprv_deleteUObject, uhash_compareUnicodeString, status), status);
                aliasFromRegion->preferredValues = newPreferredValues.orphan();
            }
            if( U_FAILURE(status)) {
                return;
            }
            UnicodeString currentRegion;
            //currentRegion.remove();   TODO: was already 0 length?
            for (int32_t i = 0 ; i < aliasTo.length() ; i++ ) {
                if ( aliasTo.charAt(i) != 0x0020 ) {
                    currentRegion.append(aliasTo.charAt(i));
                }
                if ( aliasTo.charAt(i) == 0x0020 || i+1 == aliasTo.length() ) {
                    Region *target = (Region *)uhash_get(newRegionIDMap.getAlias(),(void *)&currentRegion);
                    if (target) {
                        LocalPointer<UnicodeString> preferredValue(new UnicodeString(target->idStr), status);
                        aliasFromRegion->preferredValues->addElement((void *)preferredValue.orphan(),status);  // may add null if err
                    }
                    currentRegion.remove();
                }
            }
        }
    }

    // Process the code mappings - This will allow us to assign numeric codes to most of the territories.
    while ( ures_hasNext(codeMappings.getAlias()) ) {
        UResourceBundle *mapping = ures_getNextResource(codeMappings.getAlias(),NULL,&status);
        if ( ures_getType(mapping) == URES_ARRAY && ures_getSize(mapping) == 3) {
            UnicodeString codeMappingID = ures_getUnicodeStringByIndex(mapping,0,&status);
            UnicodeString codeMappingNumber = ures_getUnicodeStringByIndex(mapping,1,&status);
            UnicodeString codeMapping3Letter = ures_getUnicodeStringByIndex(mapping,2,&status);

            Region *r = (Region *)uhash_get(newRegionIDMap.getAlias(),(void *)&codeMappingID);
            if ( r ) {
                Formattable result;
                UErrorCode ps = U_ZERO_ERROR;
                df->parse(codeMappingNumber,result,ps);
                if ( U_SUCCESS(ps) ) {
                    r->code = result.getLong(); // Convert string to number
                    uhash_iput(newNumericCodeMap.getAlias(),r->code,(void *)r,&status);
                }
                LocalPointer<UnicodeString> code3(new UnicodeString(codeMapping3Letter), status);
                uhash_put(newRegionAliases.getAlias(),(void *)code3.orphan(), (void *)r,&status);
            }
        }
        ures_close(mapping);
    }

    // Now fill in the special cases for WORLD, UNKNOWN, CONTINENTS, and GROUPINGS
    Region *r;
    UnicodeString WORLD_ID_STRING(WORLD_ID);
    r = (Region *) uhash_get(newRegionIDMap.getAlias(),(void *)&WORLD_ID_STRING);
    if ( r ) {
        r->type = URGN_WORLD;
    }

    UnicodeString UNKNOWN_REGION_ID_STRING(UNKNOWN_REGION_ID);
    r = (Region *) uhash_get(newRegionIDMap.getAlias(),(void *)&UNKNOWN_REGION_ID_STRING);
    if ( r ) {
        r->type = URGN_UNKNOWN;
    }

    for ( int32_t i = 0 ; i < continents->size() ; i++ ) {
        r = (Region *) uhash_get(newRegionIDMap.getAlias(),(void *)continents->elementAt(i));
        if ( r ) {
            r->type = URGN_CONTINENT;
        }
    }

    for ( int32_t i = 0 ; i < groupings->size() ; i++ ) {
        r = (Region *) uhash_get(newRegionIDMap.getAlias(),(void *)groupings->elementAt(i));
        if ( r ) {
            r->type = URGN_GROUPING;
        }
    }

    // Special case: The region code "QO" (Outlying Oceania) is a subcontinent code added by CLDR
    // even though it looks like a territory code.  Need to handle it here.

    UnicodeString OUTLYING_OCEANIA_REGION_ID_STRING(OUTLYING_OCEANIA_REGION_ID);
    r = (Region *) uhash_get(newRegionIDMap.getAlias(),(void *)&OUTLYING_OCEANIA_REGION_ID_STRING);
    if ( r ) {
        r->type = URGN_SUBCONTINENT;
    }

    // Load territory containment info from the supplemental data.
    while ( ures_hasNext(territoryContainment.getAlias()) ) {
        LocalUResourceBundlePointer mapping(ures_getNextResource(territoryContainment.getAlias(),NULL,&status));
        if( U_FAILURE(status) ) {
            return;  // error out
        }
        const char *parent = ures_getKey(mapping.getAlias());
        if (uprv_strcmp(parent, "containedGroupings") == 0 || uprv_strcmp(parent, "deprecated") == 0) {
            continue; // handle new pseudo-parent types added in ICU data per cldrbug 7808; for now just skip.
            // #11232 is to do something useful with these.
        }
        UnicodeString parentStr = UnicodeString(parent, -1 , US_INV);
        Region *parentRegion = (Region *) uhash_get(newRegionIDMap.getAlias(),(void *)&parentStr);

        for ( int j = 0 ; j < ures_getSize(mapping.getAlias()); j++ ) {
            UnicodeString child = ures_getUnicodeStringByIndex(mapping.getAlias(),j,&status);
            Region *childRegion = (Region *) uhash_get(newRegionIDMap.getAlias(),(void *)&child);
            if ( parentRegion != NULL && childRegion != NULL ) {

                // Add the child region to the set of regions contained by the parent
                if (parentRegion->containedRegions == NULL) {
                    parentRegion->containedRegions = new UVector(uprv_deleteUObject, uhash_compareUnicodeString, status);
                }

                LocalPointer<UnicodeString> childStr(new UnicodeString(), status);
                if( U_FAILURE(status) ) {
                    return;  // error out
                }
                childStr->fastCopyFrom(childRegion->idStr);
                parentRegion->containedRegions->addElement((void *)childStr.orphan(),status);

                // Set the parent region to be the containing region of the child.
                // Regions of type GROUPING can't be set as the parent, since another region
                // such as a SUBCONTINENT, CONTINENT, or WORLD must always be the parent.
                if ( parentRegion->type != URGN_GROUPING) {
                    childRegion->containingRegion = parentRegion;
                }
            }
        }
    }

    // Create the availableRegions lists
    int32_t pos = UHASH_FIRST;
    while ( const UHashElement* element = uhash_nextElement(newRegionIDMap.getAlias(),&pos)) {
        Region *ar = (Region *)element->value.pointer;
        if ( availableRegions[ar->type] == NULL ) {
            LocalPointer<UVector> newAr(new UVector(uprv_deleteUObject, uhash_compareUnicodeString, status), status);
            availableRegions[ar->type] = newAr.orphan();
        }
        LocalPointer<UnicodeString> arString(new UnicodeString(ar->idStr), status);
        if( U_FAILURE(status) ) {
            return;  // error out
        }
        availableRegions[ar->type]->addElement((void *)arString.orphan(),status);
    }
    
    ucln_i18n_registerCleanup(UCLN_I18N_REGION, region_cleanup);
    // copy hashtables
    numericCodeMap = newNumericCodeMap.orphan();
    regionIDMap = newRegionIDMap.orphan();
    regionAliases = newRegionAliases.orphan();
}
NumberFormat*
NumberFormat::makeInstance(const Locale& desiredLocale,
                           UNumberFormatStyle style,
                           UBool mustBeDecimalFormat,
                           UErrorCode& status) {
    if (U_FAILURE(status)) return NULL;

    if (style < 0 || style >= UNUM_FORMAT_STYLE_COUNT) {
        status = U_ILLEGAL_ARGUMENT_ERROR;
        return NULL;
    }

    // Some styles are not supported. This is a result of merging
    // the @draft ICU 4.2 NumberFormat::EStyles into the long-existing UNumberFormatStyle.
    // Ticket #8503 is for reviewing/fixing/merging the two relevant implementations:
    // this one and unum_open().
    // The UNUM_PATTERN_ styles are not supported here
    // because this method does not take a pattern string.
    if (!isStyleSupported(style)) {
        status = U_UNSUPPORTED_ERROR;
        return NULL;
    }

#if U_PLATFORM_USES_ONLY_WIN32_API
    if (!mustBeDecimalFormat) {
        char buffer[8];
        int32_t count = desiredLocale.getKeywordValue("compat", buffer, sizeof(buffer), status);

        // if the locale has "@compat=host", create a host-specific NumberFormat
        if (U_SUCCESS(status) && count > 0 && uprv_strcmp(buffer, "host") == 0) {
            Win32NumberFormat *f = NULL;
            UBool curr = TRUE;

            switch (style) {
            case UNUM_DECIMAL:
                curr = FALSE;
                // fall-through

            case UNUM_CURRENCY:
            case UNUM_CURRENCY_ISO: // do not support plural formatting here
            case UNUM_CURRENCY_PLURAL:
                f = new Win32NumberFormat(desiredLocale, curr, status);

                if (U_SUCCESS(status)) {
                    return f;
                }

                delete f;
                break;
            default:
                break;
            }
        }
    }
#endif
    // Use numbering system cache hashtable
    umtx_initOnce(gNSCacheInitOnce, &nscacheInit);

    // Get cached numbering system
    LocalPointer<NumberingSystem> ownedNs;
    NumberingSystem *ns = NULL;
    if (NumberingSystem_cache != NULL) {
        // TODO: Bad hash key usage, see ticket #8504.
        int32_t hashKey = desiredLocale.hashCode();

        Mutex lock(&nscacheMutex);
        ns = (NumberingSystem *)uhash_iget(NumberingSystem_cache, hashKey);
        if (ns == NULL) {
            ns = NumberingSystem::createInstance(desiredLocale,status);
            uhash_iput(NumberingSystem_cache, hashKey, (void*)ns, &status);
        }
    } else {
        ownedNs.adoptInstead(NumberingSystem::createInstance(desiredLocale,status));
        ns = ownedNs.getAlias();
    }

    // check results of getting a numbering system
    if (U_FAILURE(status)) {
        return NULL;
    }

    if (mustBeDecimalFormat && ns->isAlgorithmic()) {
        status = U_UNSUPPORTED_ERROR;
        return NULL;
    }

    LocalPointer<DecimalFormatSymbols> symbolsToAdopt;
    UnicodeString pattern;
    LocalUResourceBundlePointer ownedResource(ures_open(NULL, desiredLocale.getName(), &status));
    if (U_FAILURE(status)) {
        // We don't appear to have resource data available -- use the last-resort data
        status = U_USING_FALLBACK_WARNING;
        // When the data is unavailable, and locale isn't passed in, last resort data is used.
        symbolsToAdopt.adoptInstead(new DecimalFormatSymbols(status));
        if (symbolsToAdopt.isNull()) {
            status = U_MEMORY_ALLOCATION_ERROR;
            return NULL;
        }

        // Creates a DecimalFormat instance with the last resort number patterns.
        pattern.setTo(TRUE, gLastResortNumberPatterns[style], -1);
    }
    else {
        // Loads the decimal symbols of the desired locale.
        symbolsToAdopt.adoptInstead(new DecimalFormatSymbols(desiredLocale, status));
        if (symbolsToAdopt.isNull()) {
            status = U_MEMORY_ALLOCATION_ERROR;
            return NULL;
        }

        UResourceBundle *resource = ownedResource.orphan();
        UResourceBundle *numElements = ures_getByKeyWithFallback(resource, gNumberElements, NULL, &status);
        resource = ures_getByKeyWithFallback(numElements, ns->getName(), resource, &status);
        resource = ures_getByKeyWithFallback(resource, gPatterns, resource, &status);
        ownedResource.adoptInstead(resource);

        int32_t patLen = 0;
        const UChar *patResStr = ures_getStringByKeyWithFallback(resource, gFormatKeys[style], &patLen, &status);

        // Didn't find a pattern specific to the numbering system, so fall back to "latn"
        if ( status == U_MISSING_RESOURCE_ERROR && uprv_strcmp(gLatn,ns->getName())) {
            status = U_ZERO_ERROR;
            resource = ures_getByKeyWithFallback(numElements, gLatn, resource, &status);
            resource = ures_getByKeyWithFallback(resource, gPatterns, resource, &status);
            patResStr = ures_getStringByKeyWithFallback(resource, gFormatKeys[style], &patLen, &status);
        }

        ures_close(numElements);

        // Creates the specified decimal format style of the desired locale.
        pattern.setTo(TRUE, patResStr, patLen);
    }
    if (U_FAILURE(status)) {
        return NULL;
    }
    if(style==UNUM_CURRENCY || style == UNUM_CURRENCY_ISO){
        const UChar* currPattern = symbolsToAdopt->getCurrencyPattern();
        if(currPattern!=NULL){
            pattern.setTo(currPattern, u_strlen(currPattern));
        }
    }


    NumberFormat *f;
    if (ns->isAlgorithmic()) {
        UnicodeString nsDesc;
        UnicodeString nsRuleSetGroup;
        UnicodeString nsRuleSetName;
        Locale nsLoc;
        URBNFRuleSetTag desiredRulesType = URBNF_NUMBERING_SYSTEM;

        nsDesc.setTo(ns->getDescription());
        int32_t firstSlash = nsDesc.indexOf(gSlash);
        int32_t lastSlash = nsDesc.lastIndexOf(gSlash);
        if ( lastSlash > firstSlash ) {
            CharString nsLocID;

            nsLocID.appendInvariantChars(nsDesc.tempSubString(0, firstSlash), status);
            nsRuleSetGroup.setTo(nsDesc,firstSlash+1,lastSlash-firstSlash-1);
            nsRuleSetName.setTo(nsDesc,lastSlash+1);

            nsLoc = Locale::createFromName(nsLocID.data());

            UnicodeString SpelloutRules = UNICODE_STRING_SIMPLE("SpelloutRules");
            if ( nsRuleSetGroup.compare(SpelloutRules) == 0 ) {
                desiredRulesType = URBNF_SPELLOUT;
            }
        } else {
            nsLoc = desiredLocale;
            nsRuleSetName.setTo(nsDesc);
        }

        RuleBasedNumberFormat *r = new RuleBasedNumberFormat(desiredRulesType,nsLoc,status);
        if (r == NULL) {
            status = U_MEMORY_ALLOCATION_ERROR;
            return NULL;
        }
        r->setDefaultRuleSet(nsRuleSetName,status);
        f = r;
    } else {
        // replace single currency sign in the pattern with double currency sign
        // if the style is UNUM_CURRENCY_ISO
        if (style == UNUM_CURRENCY_ISO) {
            pattern.findAndReplace(UnicodeString(TRUE, gSingleCurrencySign, 1),
                                   UnicodeString(TRUE, gDoubleCurrencySign, 2));
        }

        // "new DecimalFormat()" does not adopt the symbols if its memory allocation fails.
        DecimalFormatSymbols *syms = symbolsToAdopt.orphan();
        f = new DecimalFormat(pattern, syms, style, status);
        if (f == NULL) {
            delete syms;
            status = U_MEMORY_ALLOCATION_ERROR;
            return NULL;
        }
    }

    f->setLocaleIDs(ures_getLocaleByType(ownedResource.getAlias(), ULOC_VALID_LOCALE, &status),
                    ures_getLocaleByType(ownedResource.getAlias(), ULOC_ACTUAL_LOCALE, &status));
    if (U_FAILURE(status)) {
        delete f;
        return NULL;
    }
    return f;
}
BreakIterator *
SimpleFilteredBreakIteratorBuilder::build(BreakIterator* adoptBreakIterator, UErrorCode& status) {
  LocalPointer<BreakIterator> adopt(adoptBreakIterator);

  if(U_FAILURE(status)) {
    return NULL;
  }

  LocalPointer<UCharsTrieBuilder> builder(new UCharsTrieBuilder(status));
  LocalPointer<UCharsTrieBuilder> builder2(new UCharsTrieBuilder(status));

  int32_t revCount = 0;
  int32_t fwdCount = 0;

  int32_t subCount = fSet.size();
  LocalArray<UnicodeString> ustrs(new UnicodeString[subCount]);
  LocalArray<int> partials(new int[subCount]);

  LocalPointer<UCharsTrie>    backwardsTrie; //  i.e. ".srM" for Mrs.
  LocalPointer<UCharsTrie>    forwardsPartialTrie; //  Has ".a" for "a.M."

  int n=0;
  for ( set<UnicodeString>::iterator i = fSet.begin();
        i != fSet.end();
        i++) {
    const UnicodeString &abbr = *i;
    ustrs[n] = abbr;
    partials[n] = 0; // default: not partial
    n++;
  }
  // first pass - find partials.
  for(int i=0;i<subCount;i++) {
    int nn = ustrs[i].indexOf(kFULLSTOP); // TODO: non-'.' abbreviations
    if(nn>-1 && (nn+1)!=ustrs[i].length()) {
      //if(true) u_printf("Is a partial: /%S/\n", ustrs[i].getTerminatedBuffer());
      // is partial.
      // is it unique?
      int sameAs = -1;
      for(int j=0;j<subCount;j++) {
        if(j==i) continue;
        if(ustrs[i].compare(0,nn+1,ustrs[j],0,nn+1)==0) {
          //if(true) u_printf("Prefix match: /%S/ to %d\n", ustrs[j].getTerminatedBuffer(), nn+1);
          //UBool otherIsPartial = ((nn+1)!=ustrs[j].length());  // true if ustrs[j] doesn't end at nn
          if(partials[j]==0) { // hasn't been processed yet
            partials[j] = kSuppressInReverse | kAddToForward;
            //if(true) u_printf("Suppressing: /%S/\n", ustrs[j].getTerminatedBuffer());
          } else if(partials[j] & kSuppressInReverse) {
            sameAs = j; // the other entry is already in the reverse table.
          }
        }
      }
      //if(debug2) u_printf("for partial /%S/ same=%d partials=%d\n",      ustrs[i].getTerminatedBuffer(), sameAs, partials[i]);
      UnicodeString prefix(ustrs[i], 0, nn+1);
      if(sameAs == -1 && partials[i] == 0) {
        // first one - add the prefix to the reverse table.
        prefix.reverse();
        builder->add(prefix, kPARTIAL, status);
        revCount++;
        //if(debug2) u_printf("Added Partial: /%S/ from /%S/ status=%s\n", prefix.getTerminatedBuffer(), ustrs[i].getTerminatedBuffer(), u_errorName(status));
        partials[i] = kSuppressInReverse | kAddToForward;
      } else {
        //if(debug2) u_printf(" // not adding partial for /%S/ from /%S/\n", prefix.getTerminatedBuffer(), ustrs[i].getTerminatedBuffer());
      }
    }
  }
  for(int i=0;i<subCount;i++) {
    if(partials[i]==0) {
      ustrs[i].reverse();
      builder->add(ustrs[i], kMATCH, status);
      revCount++;
      //if(debug2) u_printf("Added: /%S/ status=%s\n", ustrs[i].getTerminatedBuffer(), u_errorName(status));
    } else {
      //if(debug2) u_printf(" Adding fwd: /%S/\n", ustrs[i].getTerminatedBuffer());

      // an optimization would be to only add the portion after the '.'
      // for example, for "Ph.D." we store ".hP" in the reverse table. We could just store "D." in the forward,
      // instead of "Ph.D." since we already know the "Ph." part is a match.
      // would need the trie to be able to hold 0-length strings, though.
      builder2->add(ustrs[i], kMATCH, status); // forward
      fwdCount++;
      //ustrs[i].reverse();
      ////if(debug2) u_printf("SUPPRESS- not Added(%d):  /%S/ status=%s\n",partials[i], ustrs[i].getTerminatedBuffer(), u_errorName(status));
    }
  }
  //if(debug) u_printf(" %s has %d abbrs.\n", fJSONSource.c_str(), subCount);

  if(revCount>0) {
    backwardsTrie.adoptInstead(builder->build(USTRINGTRIE_BUILD_FAST, status));
    if(U_FAILURE(status)) {
      //printf("Error %s building backwards\n", u_errorName(status));
      return NULL;
    }
  }

  if(fwdCount>0) {
    forwardsPartialTrie.adoptInstead(builder2->build(USTRINGTRIE_BUILD_FAST, status));
    if(U_FAILURE(status)) {
      //printf("Error %s building forwards\n", u_errorName(status));
      return NULL;
    }
  }

  return new ULISentenceBreakIterator(adopt.orphan(), forwardsPartialTrie.orphan(), backwardsTrie.orphan(), status);
}