C++ UnicodeString::append方法代码示例

static void appendRange(
        const UnicodeString &src,
        int32_t start,
        int32_t end,
        UnicodeString &dest) {
    dest.append(src, start, end - start);
}

/* Explain <xxxxx> tag to a native value
 *
 * Since <xxxxx> is always larger than the native value,
 * the operation will replace the tag directly in the buffer,
 * and, of course, will shift tail elements.
 */
void IdnaConfTest::ExplainCodePointTag(UnicodeString& buf){
    buf.append((UChar)0);    // add a terminal NULL
    UChar* bufBase = buf.getBuffer(buf.length());
    UChar* p = bufBase;
    while (*p != 0){
        if ( *p != 0x3C){    // <
            *bufBase++ = *p++;
        } else {
            p++;    // skip <
            UChar32 cp = 0;
            for ( ;*p != 0x3E; p++){   // >
                if (0x30 <= *p && *p <= 0x39){        // 0-9
                    cp = (cp * 16) + (*p - 0x30);
                } else if (0x61 <= *p && *p <= 0x66){ // a-f
                    cp = (cp * 16) + (*p - 0x61) + 10;
                } else if (0x41 <= *p && *p <= 0x46) {// A-F
                    cp = (cp * 16) + (*p - 0x41) + 10;
                }
                // no else. hope everything is good.
            }
            p++;    // skip >
            if (U_IS_BMP(cp)){
                *bufBase++ = cp;
            } else {
                *bufBase++ = U16_LEAD(cp);
                *bufBase++ = U16_TRAIL(cp);
            }
        }
    }
    *bufBase = 0;  // close our buffer
    buf.releaseBuffer();
}

static int32_t
_concatenate(const UChar *left, int32_t leftLength,
                  const UChar *right, int32_t rightLength,
                  UChar *dest, int32_t destCapacity,
                  const Normalizer2 *n2,
                  UErrorCode *pErrorCode) {
    if(U_FAILURE(*pErrorCode)) {
        return 0;
    }
    if(destCapacity<0 || (dest==NULL && destCapacity>0) ||
        left==NULL || leftLength<-1 || right==NULL || rightLength<-1) {
        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
        return 0;
    }

    /* check for overlapping right and destination */
    if( dest!=NULL &&
        ((right>=dest && right<(dest+destCapacity)) ||
         (rightLength>0 && dest>=right && dest<(right+rightLength)))
    ) {
        *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR;
        return 0;
    }

    /* allow left==dest */
    UnicodeString destString;
    if(left==dest) {
        destString.setTo(dest, leftLength, destCapacity);
    } else {
        destString.setTo(dest, 0, destCapacity);
        destString.append(left, leftLength);
    }
    return n2->append(destString, UnicodeString(rightLength<0, right, rightLength), *pErrorCode).
           extract(dest, destCapacity, *pErrorCode);
}

static void doubleToStr(
        const void *doublePtr, UnicodeString &appendTo) {
    char buffer[256];
    double x = *static_cast<const double *>(doublePtr);
    sprintf(buffer, "%f", x);
    appendTo.append(buffer);
}

UnicodeString& GLUE_SYM (DateFormat ) :: format(  Calendar& cal, UnicodeString& appendTo, FieldPosition& pos) const
{
#if DATE_FE_DEBUG
  fprintf(stderr, "VCF " ICUGLUE_VER_STR " - formatting. \n");
#endif
  int32_t len = appendTo.length();

  UChar junk[200];
  UErrorCode status = U_ZERO_ERROR;

  UFieldPosition pos2;

  int32_t nlen = OICU_udat_format(_this,
                                  cal.getTime(status),
                                  junk,
                                  200,
                                  &pos2,
                                  &status);

  // todo: use pos2
  pos.setBeginIndex(len);
  pos.setEndIndex(len += nlen);
  appendTo.append(junk, nlen);

  return appendTo;
}

void 
DateIntervalFormat::concatSingleDate2TimeInterval(const UChar* format,
                                              int32_t formatLen,
                                              const UnicodeString& datePattern,
                                              UCalendarDateFields field,
                                              UErrorCode& status) {
    // following should not set wrong status
    int32_t itvPtnIndex = DateIntervalInfo::calendarFieldToIntervalIndex(field,
                                                                        status);
    if ( U_FAILURE(status) ) {
        return;
    }
    PatternInfo&  timeItvPtnInfo = fIntervalPatterns[itvPtnIndex];
    if ( !timeItvPtnInfo.firstPart.isEmpty() ) {
        // UnicodeString allocated here is adopted, so no need to delete
        UnicodeString* timeIntervalPattern = new UnicodeString(timeItvPtnInfo.firstPart);
        timeIntervalPattern->append(timeItvPtnInfo.secondPart);
        UnicodeString* dateStr = new UnicodeString(datePattern);
        Formattable fmtArray[2];
        fmtArray[0].adoptString(timeIntervalPattern);
        fmtArray[1].adoptString(dateStr);
        UnicodeString combinedPattern;
        MessageFormat::format(UnicodeString(TRUE, format, formatLen),
                              fmtArray, 2, combinedPattern, status);
        if ( U_FAILURE(status) ) {
            return;
        }
        setIntervalPattern(field, combinedPattern, timeItvPtnInfo.laterDateFirst);
    } 
    // else: fall back
    // it should not happen if the interval format defined is valid
}

ssize_t
BLocale::FormatDateTime(char* target, size_t maxSize, time_t time,
	BDateFormatStyle dateStyle, BTimeFormatStyle timeStyle) const
{
	BAutolock lock(fLock);
	if (!lock.IsLocked())
		return B_ERROR;

	BString format;
	fConventions.GetDateFormat(dateStyle, format);
	ObjectDeleter<DateFormat> dateFormatter(_CreateDateFormatter(format));
	if (dateFormatter.Get() == NULL)
		return B_NO_MEMORY;

	fConventions.GetTimeFormat(timeStyle, format);
	ObjectDeleter<DateFormat> timeFormatter(_CreateTimeFormatter(format));
	if (timeFormatter.Get() == NULL)
		return B_NO_MEMORY;

	UnicodeString icuString;
	dateFormatter->format((UDate)time * 1000, icuString);

	icuString.append(UnicodeString::fromUTF8(", "));

	timeFormatter->format((UDate)time * 1000, icuString);

	CheckedArrayByteSink stringConverter(target, maxSize);
	icuString.toUTF8(stringConverter);

	if (stringConverter.Overflowed())
		return B_BAD_VALUE;

	return stringConverter.NumberOfBytesWritten();
}

U_CAPI int32_t U_EXPORT2
unorm_concatenate(const UChar * left, int32_t leftLength,
                  const UChar * right, int32_t rightLength,
                  UChar * dest, int32_t destCapacity,
                  UNormalizationMode mode, int32_t options,
                  UErrorCode * pErrorCode)
{
	const Normalizer2 * n2 = Normalizer2Factory::getInstance(mode, *pErrorCode);
	const UnicodeSet * uni32;
	if (options & UNORM_UNICODE_3_2)
	{
		uni32 = uniset_getUnicode32Instance(*pErrorCode);
	}
	else
	{
		uni32 = NULL; // unused
	}
	FilteredNormalizer2 fn2(*n2, *uni32);
	if (options & UNORM_UNICODE_3_2)
	{
		n2 = &fn2;
	}
	if (U_FAILURE(*pErrorCode))
	{
		return 0;
	}
	if (destCapacity < 0 || (dest == NULL && destCapacity > 0) ||
	    left == NULL || leftLength < -1 ||
	    right == NULL || rightLength < -1
	   )
	{
		*pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
		return 0;
	}

	/* check for overlapping right and destination */
	if (dest != NULL &&
	    ((right >= dest && right < (dest + destCapacity)) ||
	     (rightLength > 0 && dest >= right && dest < (right + rightLength)))
	   )
	{
		*pErrorCode = U_ILLEGAL_ARGUMENT_ERROR;
		return 0;
	}

	/* allow left==dest */
	UnicodeString destString;
	if (left == dest)
	{
		destString.setTo(dest, leftLength, destCapacity);
	}
	else
	{
		destString.setTo(dest, 0, destCapacity);
		destString.append(left, leftLength);
	}
	return n2->append(destString, UnicodeString(rightLength < 0, right, rightLength), *pErrorCode).
	       extract(dest, destCapacity, *pErrorCode);
}

UnicodeString &StringSetMonkey::generateAlternative(const UnicodeString &testCase, UnicodeString &alternate)
{
    // find out shortest string for the longest sequence of ces.
    // needs to be refined to use dynamic programming, but will be roughly right
    UErrorCode status = U_ZERO_ERROR;
    CEList ceList(coll, testCase, status);
    UnicodeString alt;
    int32_t offset = 0;

    if (ceList.size() == 0) {
        return alternate.append(testCase);
    }

    while (offset < ceList.size()) {
        int32_t ce = ceList.get(offset);
        const StringList *strings = collData->getStringList(ce);

        if (strings == NULL) {
            return alternate.append(testCase);
        }

        int32_t stringCount = strings->size();
        int32_t tries = 0;

        // find random string that generates the same CEList
        const CEList *ceList2 = NULL;
        const UnicodeString *string = NULL;
              UBool matches = FALSE;

        do {
            int32_t s = m_rand() % stringCount;

            if (tries++ > stringCount) {
                alternate.append(testCase);
                return alternate;
            }

            string = strings->get(s);
            ceList2 = collData->getCEList(string);
            matches = ceList.matchesAt(offset, ceList2);

            if (! matches) {
                collData->freeCEList((CEList *) ceList2);
            }
        } while (! matches);

        alt.append(*string);
        offset += ceList2->size();
        collData->freeCEList(ceList2);
    }

    const CEList altCEs(coll, alt, status);

    if (ceList.matchesAt(0, &altCEs)) {
        return alternate.append(alt);
    }

    return alternate.append(testCase);
}

/**
 * Given source, target, and variant strings, concatenate them into a
 * full ID.  If the source is empty, then "Any" will be used for the
 * source, so the ID will always be of the form s-t/v or s-t.
 */
void TransliteratorIDParser::STVtoID(const UnicodeString& source,
                                     const UnicodeString& target,
                                     const UnicodeString& variant,
                                     UnicodeString& id) {
    id = source;
    if (id.length() == 0) {
        id.setTo(ANY, 3);
    }
    id.append(TARGET_SEP).append(target);
    if (variant.length() != 0) {
        id.append(VARIANT_SEP).append(variant);
    }
    // NUL-terminate the ID string for getTerminatedBuffer.
    // This prevents valgrind and Purify warnings.
    id.append((UChar)0);
    id.truncate(id.length()-1);
}

void
UCharsTrieElement::setTo(const UnicodeString &s, int32_t val,
                         UnicodeString &strings, UErrorCode &errorCode) {
    if(U_FAILURE(errorCode)) {
        return;
    }
    int32_t length=s.length();
    if(length>0xffff) {
        // Too long: We store the length in 1 unit.
        errorCode=U_INDEX_OUTOFBOUNDS_ERROR;
        return;
    }
    stringOffset=strings.length();
    strings.append((UChar)length);
    value=val;
    strings.append(s);
}

 TestReplaceable (const UnicodeString& text, 
                  const UnicodeString& newStyles) {
     chars = text;
     UnicodeString s;
     for (int i = 0; i < text.length(); ++i) {
         if (i < newStyles.length()) {
             s.append(newStyles.charAt(i));
         } else {
             if (text.charAt(i) == NO_STYLE_MARK) {
                 s.append(NO_STYLE);
             } else {
                 s.append((UChar)(i + 0x0031));
             }
         }
     }
     this->styles = s;
 }

UnicodeString AlphabeticIndex::separated(const UnicodeString &item) {
    UnicodeString result;
    if (item.length() == 0) {
        return result;
    }
    int32_t i = 0;
    for (;;) {
        UChar32  cp = item.char32At(i);
        result.append(cp);
        i = item.moveIndex32(i, 1);
        if (i >= item.length()) {
            break;
        }
        result.append(CGJ);
    }
    return result;
}

// use these for now
void
ICUServiceTest::confirmStringsEqual(const UnicodeString& message, const UnicodeString& lhs, const UnicodeString& rhs) 
{
    UBool equ = lhs == rhs;

    UnicodeString temp = message;
    temp.append(" lhs: ");
    temp.append(lhs);
    temp.append(" rhs: ");
    temp.append(rhs);

    if (equ) {
        logln(temp);
    } else {
        dataerrln(temp);
    }
}

RuleBasedNumberFormat::RuleBasedNumberFormat(URBNFRuleSetTag tag, const Locale& alocale, UErrorCode& status)
  : ruleSets(NULL)
  , ruleSetDescriptions(NULL)
  , numRuleSets(0)
  , defaultRuleSet(NULL)
  , locale(alocale)
  , collator(NULL)
  , decimalFormatSymbols(NULL)
  , lenient(FALSE)
  , lenientParseRules(NULL)
  , localizations(NULL)
{
    if (U_FAILURE(status)) {
        return;
    }

    const char* rules_tag = "RBNFRules";
    const char* fmt_tag = "";
    switch (tag) {
    case URBNF_SPELLOUT: fmt_tag = "SpelloutRules"; break;
    case URBNF_ORDINAL: fmt_tag = "OrdinalRules"; break;
    case URBNF_DURATION: fmt_tag = "DurationRules"; break;
    case URBNF_NUMBERING_SYSTEM: fmt_tag = "NumberingSystemRules"; break;
    default: status = U_ILLEGAL_ARGUMENT_ERROR; return;
    }

    // TODO: read localization info from resource
    LocalizationInfo* locinfo = NULL;

    UResourceBundle* nfrb = ures_open(U_ICUDATA_RBNF, locale.getName(), &status);
    if (U_SUCCESS(status)) {
        setLocaleIDs(ures_getLocaleByType(nfrb, ULOC_VALID_LOCALE, &status),
                     ures_getLocaleByType(nfrb, ULOC_ACTUAL_LOCALE, &status));

        UResourceBundle* rbnfRules = ures_getByKeyWithFallback(nfrb, rules_tag, NULL, &status);
        if (U_FAILURE(status)) {
            ures_close(nfrb);
        }
        UResourceBundle* ruleSets = ures_getByKeyWithFallback(rbnfRules, fmt_tag, NULL, &status);
        if (U_FAILURE(status)) {
            ures_close(rbnfRules);
            ures_close(nfrb);
            return;
        }

        UnicodeString desc;
        while (ures_hasNext(ruleSets)) {
           desc.append(ures_getNextUnicodeString(ruleSets,NULL,&status));
        }
        UParseError perror;

        init (desc, locinfo, perror, status);

        ures_close(ruleSets);
        ures_close(rbnfRules);
    }
    ures_close(nfrb);
}