C++ UnicodeString::setTo方法代码示例

U_CAPI int32_t U_EXPORT2
udat_toPatternRelativeTime(const UDateFormat *fmt,
                           UChar             *result,
                           int32_t           resultLength,
                           UErrorCode        *status)
{
    verifyIsRelativeDateFormat(fmt, status);
    if(U_FAILURE(*status)) return -1;

    UnicodeString timePattern;
    if(!(result==NULL && resultLength==0)) {
        // NULL destination for pure preflighting: empty dummy string
        // otherwise, alias the destination buffer
        timePattern.setTo(result, 0, resultLength);
    }
    ((RelativeDateFormat*)fmt)->toPatternTime(timePattern, *status);
    return timePattern.extract(result, resultLength, *status);
}

void RuleBasedCollator::getRules(UColRuleOption delta, UnicodeString &buffer)
{
    int32_t rulesize = ucol_getRulesEx(ucollator, delta, NULL, -1);

    if (rulesize > 0) {
        UChar *rules = (UChar*) uprv_malloc( sizeof(UChar) * (rulesize) );
        if(rules != NULL) {
            ucol_getRulesEx(ucollator, delta, rules, rulesize);
            buffer.setTo(rules, rulesize);
            uprv_free(rules);
        } else { // couldn't allocate
            buffer.remove();
        }
    }
    else {
        buffer.remove();
    }
}

UnicodeString& U_EXPORT2
TimeZoneNamesImpl::getDefaultExemplarLocationName(const UnicodeString& tzID, UnicodeString& name) {
    if (tzID.isEmpty() || tzID.startsWith(gEtcPrefix, gEtcPrefixLen)
        || tzID.startsWith(gSystemVPrefix, gSystemVPrefixLen) || tzID.indexOf(gRiyadh8, gRiyadh8Len, 0) > 0) {
        name.setToBogus();
        return name;
    }

    int32_t sep = tzID.lastIndexOf((UChar)0x2F /* '/' */);
    if (sep > 0 && sep + 1 < tzID.length()) {
        name.setTo(tzID, sep + 1);
        name.findAndReplace(UnicodeString((UChar)0x5f /* _ */),
                            UnicodeString((UChar)0x20 /* space */));
    } else {
        name.setToBogus();
    }
    return name;
}

U_NAMESPACE_USE

static TimeZone*
_createTimeZone(const UChar* zoneID, int32_t len, UErrorCode* ec) {
    TimeZone* zone = NULL;
    if (ec!=NULL && U_SUCCESS(*ec)) {
        // Note that if zoneID is invalid, we get back GMT. This odd
        // behavior is by design and goes back to the JDK. The only
        // failure we will see is a memory allocation failure.
        int32_t l = (len<0 ? u_strlen(zoneID) : len);
        UnicodeString zoneStrID;
        zoneStrID.setTo((UBool)(len < 0), zoneID, l); /* temporary read-only alias */
        zone = TimeZone::createTimeZone(zoneStrID);
        if (zone == NULL) {
            *ec = U_MEMORY_ALLOCATION_ERROR;
        }
    }
    return zone;
}

UnicodeString& U_EXPORT2
ZoneMeta::getMetazoneID(const UnicodeString &tzid, UDate date, UnicodeString &result) {
    UBool isSet = FALSE;
    const UVector *mappings = getMetazoneMappings(tzid);
    if (mappings != NULL) {
        for (int32_t i = 0; i < mappings->size(); i++) {
            OlsonToMetaMappingEntry *mzm = (OlsonToMetaMappingEntry*)mappings->elementAt(i);
            if (mzm->from <= date && mzm->to > date) {
                result.setTo(mzm->mzid, -1);
                isSet = TRUE;
                break;
            }
        }
    }
    if (!isSet) {
        result.remove();
    }
    return result;
}

UnicodeString& U_EXPORT2
ZoneMeta::getZoneIdByMetazone(const UnicodeString &mzid, const UnicodeString &region, UnicodeString &result) {
    UErrorCode status = U_ZERO_ERROR;
    const UChar *tzid = NULL;
    int32_t tzidLen = 0;
    char keyBuf[ZID_KEY_MAX + 1];
    int32_t keyLen = 0;

    if (mzid.length() >= ZID_KEY_MAX) {
        result.remove();
        return result;
    }

    keyLen = mzid.extract(0, mzid.length(), keyBuf, ZID_KEY_MAX, US_INV);

    UResourceBundle *rb = ures_openDirect(NULL, gMetaZones, &status);
    ures_getByKey(rb, gMapTimezonesTag, rb, &status);
    ures_getByKey(rb, keyBuf, rb, &status);

    if (U_SUCCESS(status)) {
        // check region mapping
        if (region.length() == 2 || region.length() == 3) {
            region.extract(0, region.length(), keyBuf, ZID_KEY_MAX, US_INV);
            tzid = ures_getStringByKey(rb, keyBuf, &tzidLen, &status);
            if (status == U_MISSING_RESOURCE_ERROR) {
                status = U_ZERO_ERROR;
            }
        }
        if (U_SUCCESS(status) && tzid == NULL) {
            // try "001"
            tzid = ures_getStringByKey(rb, gWorldTag, &tzidLen, &status);
        }
    }
    ures_close(rb);

    if (tzid == NULL) {
        result.remove();
    } else {
        result.setTo(tzid, tzidLen);
    }

    return result;
}

/**
 * Parse an ID into pieces.  Take IDs of the form T, T/V, S-T,
 * S-T/V, or S/V-T.  If the source is missing, return a source of
 * ANY.
 * @param id the id string, in any of several forms
 * @return an array of 4 strings: source, target, variant, and
 * isSourcePresent.  If the source is not present, ANY will be
 * given as the source, and isSourcePresent will be NULL.  Otherwise
 * isSourcePresent will be non-NULL.  The target may be empty if the
 * id is not well-formed.  The variant may be empty.
 */
void TransliteratorIDParser::IDtoSTV(const UnicodeString& id,
                                     UnicodeString& source,
                                     UnicodeString& target,
                                     UnicodeString& variant,
                                     UBool& isSourcePresent) {
    source.setTo(ANY, 3);
    target.truncate(0);
    variant.truncate(0);

    int32_t sep = id.indexOf(TARGET_SEP);
    int32_t var = id.indexOf(VARIANT_SEP);
    if (var < 0) {
        var = id.length();
    }
    isSourcePresent = FALSE;

    if (sep < 0) {
        // Form: T/V or T (or /V)
        id.extractBetween(0, var, target);
        id.extractBetween(var, id.length(), variant);
    } else if (sep < var) {
        // Form: S-T/V or S-T (or -T/V or -T)
        if (sep > 0) {
            id.extractBetween(0, sep, source);
            isSourcePresent = TRUE;
        }
        id.extractBetween(++sep, var, target);
        id.extractBetween(var, id.length(), variant);
    } else {
        // Form: (S/V-T or /V-T)
        if (var > 0) {
            id.extractBetween(0, var, source);
            isSourcePresent = TRUE;
        }
        id.extractBetween(var, sep++, variant);
        id.extractBetween(sep, id.length(), target);
    }

    if (variant.length() > 0) {
        variant.remove(0, 1);
    }
}

static PyObject *t_canonicaliterator_getSource(t_canonicaliterator *self,
                                               PyObject *args)
{
    UnicodeString *u;
    UnicodeString _u;

    switch (PyTuple_Size(args)) {
      case 0:
        _u = self->object->getSource();
        return PyUnicode_FromUnicodeString(&_u);
      case 1:
        if (!parseArgs(args, "U", &u))
        {
            u->setTo(self->object->getSource());
            Py_RETURN_ARG(args, 0);
        }
        break;
    }

    return PyErr_SetArgsError((PyObject *) self, "getSource", args);
}

static PyObject *t_resourcebundle_getNextString(t_resourcebundle *self,
                                                PyObject *args)
{
    UnicodeString *u;
    UnicodeString _u;

    switch (PyTuple_Size(args)) {
      case 0:
        STATUS_CALL(_u = self->object->getNextString(status));
        return PyUnicode_FromUnicodeString(&_u);
      case 1:
        if (!parseArgs(args, "U", &u))
        {
            STATUS_CALL(u->setTo(self->object->getNextString(status)));
            Py_RETURN_ARG(args, 0);
        }
        break;
    }

    return PyErr_SetArgsError((PyObject *) self, "getNextString", args);
}

static int32_t findInStringArray(UResourceBundle* array, const UnicodeString& id, UErrorCode &status)
{
    UnicodeString copy;
    const UChar *u;
    int32_t len;
    
    int32_t start = 0;
    int32_t limit = ures_getSize(array);
    int32_t mid;
    int32_t lastMid = INT32_MAX;
    if(U_FAILURE(status) || (limit < 1)) { 
        return -1;
    }
    U_DEBUG_TZ_MSG(("fisa: Looking for %s, between %d and %d\n", U_DEBUG_TZ_STR(UnicodeString(id).getTerminatedBuffer()), start, limit));
    
    for (;;) {
        mid = (int32_t)((start + limit) / 2);
        if (lastMid == mid) {   /* Have we moved? */
            break;  /* We haven't moved, and it wasn't found. */
        }
        lastMid = mid;
        u = ures_getStringByIndex(array, mid, &len, &status);
        if (U_FAILURE(status)) {
            break;
        }
        U_DEBUG_TZ_MSG(("tz: compare to %s, %d .. [%d] .. %d\n", U_DEBUG_TZ_STR(u), start, mid, limit));
        copy.setTo(TRUE, u, len);
        int r = id.compare(copy);
        if(r==0) {
            U_DEBUG_TZ_MSG(("fisa: found at %d\n", mid));
            return mid;
        } else if(r<0) {
            limit = mid;
        } else {
            start = mid;
        }
    }
    U_DEBUG_TZ_MSG(("fisa: not found\n"));
    return -1;
}

U_CAPI int32_t U_EXPORT2
unum_formatDecimal(const    UNumberFormat*  fmt,
            const char *    number,
            int32_t         length,
            UChar*          result,
            int32_t         resultLength,
            UFieldPosition  *pos, /* 0 if ignore */
            UErrorCode*     status) {

    if(U_FAILURE(*status)) {
        return -1;
    }
    if ((result == NULL && resultLength != 0) || resultLength < 0) {
        *status = U_ILLEGAL_ARGUMENT_ERROR;
        return -1;
    }

    FieldPosition fp;
    if(pos != 0) {
        fp.setField(pos->field);
    }

    if (length < 0) {
        length = uprv_strlen(number);
    }
    StringPiece numSP(number, length);
    Formattable numFmtbl(numSP, *status);

    UnicodeString resultStr;
    if (resultLength > 0) {
        // Alias the destination buffer.
        resultStr.setTo(result, 0, resultLength);
    }
    ((const NumberFormat*)fmt)->format(numFmtbl, resultStr, fp, *status);
    if(pos != 0) {
        pos->beginIndex = fp.getBeginIndex();
        pos->endIndex = fp.getEndIndex();
    }
    return resultStr.extract(result, resultLength, *status);
}

U_CAPI int32_t U_EXPORT2
ucal_getTimeZoneDisplayName(const     UCalendar*                 cal,
                    UCalendarDisplayNameType     type,
                    const char             *locale,
                    UChar*                  result,
                    int32_t                 resultLength,
                    UErrorCode*             status)
{

    if(U_FAILURE(*status)) return -1;

    const TimeZone& tz = ((Calendar*)cal)->getTimeZone();
    UnicodeString id;
    if(!(result==NULL && resultLength==0)) {
        // NULL destination for pure preflighting: empty dummy string
        // otherwise, alias the destination buffer
        id.setTo(result, 0, resultLength);
    }

    switch(type) {
  case UCAL_STANDARD:
      tz.getDisplayName(FALSE, TimeZone::LONG, Locale(locale), id);
      break;

  case UCAL_SHORT_STANDARD:
      tz.getDisplayName(FALSE, TimeZone::SHORT, Locale(locale), id);
      break;

  case UCAL_DST:
      tz.getDisplayName(TRUE, TimeZone::LONG, Locale(locale), id);
      break;

  case UCAL_SHORT_DST:
      tz.getDisplayName(TRUE, TimeZone::SHORT, Locale(locale), id);
      break;
    }

    return id.extract(result, resultLength, *status);
}

U_CAPI int32_t U_EXPORT2
udat_toPattern(    const   UDateFormat     *fmt,
        UBool          localized,
        UChar           *result,
        int32_t         resultLength,
        UErrorCode      *status)
{
    if(U_FAILURE(*status)) {
        return -1;
    }
    if (result == NULL ? resultLength != 0 : resultLength < 0) {
        *status = U_ILLEGAL_ARGUMENT_ERROR;
        return -1;
    }

    UnicodeString res;
    if (result != NULL) {
        // NULL destination for pure preflighting: empty dummy string
        // otherwise, alias the destination buffer
        res.setTo(result, 0, resultLength);
    }

    const DateFormat *df=reinterpret_cast<const DateFormat *>(fmt);
    const SimpleDateFormat *sdtfmt=dynamic_cast<const SimpleDateFormat *>(df);
    const RelativeDateFormat *reldtfmt;
    if (sdtfmt!=NULL) {
        if(localized)
            sdtfmt->toLocalizedPattern(res, *status);
        else
            sdtfmt->toPattern(res);
    } else if (!localized && (reldtfmt=dynamic_cast<const RelativeDateFormat *>(df))!=NULL) {
        reldtfmt->toPattern(res, *status);
    } else {
        *status = U_ILLEGAL_ARGUMENT_ERROR;
        return -1;
    }

    return res.extract(result, resultLength, *status);
}

void
RuleBasedNumberFormat::stripWhitespace(UnicodeString& description)
{
    // iterate through the characters...
    UnicodeString result;

    int start = 0;
    while (start != -1 && start < description.length()) {
        // seek to the first non-whitespace character...
        while (start < description.length()
            && PatternProps::isWhiteSpace(description.charAt(start))) {
            ++start;
        }

        // locate the next semicolon in the text and copy the text from
        // our current position up to that semicolon into the result
        int32_t p = description.indexOf(gSemiColon, start);
        if (p == -1) {
            // or if we don't find a semicolon, just copy the rest of
            // the string into the result
            result.append(description, start, description.length() - start);
            start = -1;
        }
        else if (p < description.length()) {
            result.append(description, start, p + 1 - start);
            start = p + 1;
        }

        // when we get here, we've seeked off the end of the sring, and
        // we terminate the loop (we continue until *start* is -1 rather
        // than until *p* is -1, because otherwise we'd miss the last
        // rule in the description)
        else {
            start = -1;
        }
    }

    description.setTo(result);
}

NumberingSystem* U_EXPORT2
NumberingSystem::createInstanceByName(const char *name, UErrorCode& status) {
    
     UResourceBundle *numberingSystemsInfo = NULL;
     UResourceBundle *nsTop, *nsCurrent;
     const UChar* description = NULL;
     int32_t radix = 10;
     int32_t algorithmic = 0;
     int32_t len;

     numberingSystemsInfo = ures_openDirect(NULL,gNumberingSystems, &status);
     nsCurrent = ures_getByKey(numberingSystemsInfo,gNumberingSystems,NULL,&status);
     nsTop = ures_getByKey(nsCurrent,name,NULL,&status);
     description = ures_getStringByKey(nsTop,gDesc,&len,&status);

	 ures_getByKey(nsTop,gRadix,nsCurrent,&status);
     radix = ures_getInt(nsCurrent,&status);

     ures_getByKey(nsTop,gAlgorithmic,nsCurrent,&status);
     algorithmic = ures_getInt(nsCurrent,&status);

     UBool isAlgorithmic = ( algorithmic == 1 );
     UnicodeString nsd;
     nsd.setTo(description);

	 ures_close(nsCurrent);
	 ures_close(nsTop);
     ures_close(numberingSystemsInfo);

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

     NumberingSystem* ns = NumberingSystem::createInstance(radix,isAlgorithmic,nsd,status);
     ns->setName(name);
     return ns;
}