scuffed-code/icu4c/source/i18n/unum.cpp

958 lines
28 KiB
C++

// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 1996-2015, International Business Machines
* Corporation and others. All Rights Reserved.
*******************************************************************************
* Modification History:
*
* Date Name Description
* 06/24/99 helena Integrated Alan's NF enhancements and Java2 bug fixes
*******************************************************************************
*/
#include "unicode/utypes.h"
#if !UCONFIG_NO_FORMATTING
#include "unicode/unum.h"
#include "unicode/uloc.h"
#include "unicode/numfmt.h"
#include "unicode/decimfmt.h"
#include "unicode/rbnf.h"
#include "unicode/compactdecimalformat.h"
#include "unicode/ustring.h"
#include "unicode/fmtable.h"
#include "unicode/dcfmtsym.h"
#include "unicode/curramt.h"
#include "unicode/localpointer.h"
#include "unicode/udisplaycontext.h"
#include "uassert.h"
#include "cpputils.h"
#include "cstring.h"
U_NAMESPACE_USE
U_CAPI UNumberFormat* U_EXPORT2
unum_open( UNumberFormatStyle style,
const UChar* pattern,
int32_t patternLength,
const char* locale,
UParseError* parseErr,
UErrorCode* status) {
if(U_FAILURE(*status)) {
return NULL;
}
NumberFormat *retVal = NULL;
switch(style) {
case UNUM_DECIMAL:
case UNUM_CURRENCY:
case UNUM_PERCENT:
case UNUM_SCIENTIFIC:
case UNUM_CURRENCY_ISO:
case UNUM_CURRENCY_PLURAL:
case UNUM_CURRENCY_ACCOUNTING:
case UNUM_CASH_CURRENCY:
case UNUM_CURRENCY_STANDARD:
retVal = NumberFormat::createInstance(Locale(locale), style, *status);
break;
case UNUM_PATTERN_DECIMAL: {
UParseError tErr;
/* UnicodeString can handle the case when patternLength = -1. */
const UnicodeString pat(pattern, patternLength);
if(parseErr==NULL){
parseErr = &tErr;
}
DecimalFormatSymbols *syms = new DecimalFormatSymbols(Locale(locale), *status);
if(syms == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
return NULL;
}
if (U_FAILURE(*status)) {
delete syms;
return NULL;
}
retVal = new DecimalFormat(pat, syms, *parseErr, *status);
if(retVal == NULL) {
delete syms;
}
} break;
#if U_HAVE_RBNF
case UNUM_PATTERN_RULEBASED: {
UParseError tErr;
/* UnicodeString can handle the case when patternLength = -1. */
const UnicodeString pat(pattern, patternLength);
if(parseErr==NULL){
parseErr = &tErr;
}
retVal = new RuleBasedNumberFormat(pat, Locale(locale), *parseErr, *status);
} break;
case UNUM_SPELLOUT:
retVal = new RuleBasedNumberFormat(URBNF_SPELLOUT, Locale(locale), *status);
break;
case UNUM_ORDINAL:
retVal = new RuleBasedNumberFormat(URBNF_ORDINAL, Locale(locale), *status);
break;
case UNUM_DURATION:
retVal = new RuleBasedNumberFormat(URBNF_DURATION, Locale(locale), *status);
break;
case UNUM_NUMBERING_SYSTEM:
retVal = new RuleBasedNumberFormat(URBNF_NUMBERING_SYSTEM, Locale(locale), *status);
break;
#endif
case UNUM_DECIMAL_COMPACT_SHORT:
retVal = CompactDecimalFormat::createInstance(Locale(locale), UNUM_SHORT, *status);
break;
case UNUM_DECIMAL_COMPACT_LONG:
retVal = CompactDecimalFormat::createInstance(Locale(locale), UNUM_LONG, *status);
break;
default:
*status = U_UNSUPPORTED_ERROR;
return NULL;
}
if(retVal == NULL && U_SUCCESS(*status)) {
*status = U_MEMORY_ALLOCATION_ERROR;
}
if (U_FAILURE(*status) && retVal != NULL) {
delete retVal;
retVal = NULL;
}
return reinterpret_cast<UNumberFormat *>(retVal);
}
U_CAPI void U_EXPORT2
unum_close(UNumberFormat* fmt)
{
delete (NumberFormat*) fmt;
}
U_CAPI UNumberFormat* U_EXPORT2
unum_clone(const UNumberFormat *fmt,
UErrorCode *status)
{
if(U_FAILURE(*status))
return 0;
Format *res = 0;
const NumberFormat* nf = reinterpret_cast<const NumberFormat*>(fmt);
const DecimalFormat* df = dynamic_cast<const DecimalFormat*>(nf);
if (df != NULL) {
res = df->clone();
} else {
const RuleBasedNumberFormat* rbnf = dynamic_cast<const RuleBasedNumberFormat*>(nf);
U_ASSERT(rbnf != NULL);
res = rbnf->clone();
}
if(res == 0) {
*status = U_MEMORY_ALLOCATION_ERROR;
return 0;
}
return (UNumberFormat*) res;
}
U_CAPI int32_t U_EXPORT2
unum_format( const UNumberFormat* fmt,
int32_t number,
UChar* result,
int32_t resultLength,
UFieldPosition *pos,
UErrorCode* status)
{
return unum_formatInt64(fmt, number, result, resultLength, pos, status);
}
U_CAPI int32_t U_EXPORT2
unum_formatInt64(const UNumberFormat* fmt,
int64_t number,
UChar* result,
int32_t resultLength,
UFieldPosition *pos,
UErrorCode* status)
{
if(U_FAILURE(*status))
return -1;
UnicodeString res;
if(!(result==NULL && resultLength==0)) {
// NULL destination for pure preflighting: empty dummy string
// otherwise, alias the destination buffer
res.setTo(result, 0, resultLength);
}
FieldPosition fp;
if(pos != 0)
fp.setField(pos->field);
((const NumberFormat*)fmt)->format(number, res, fp, *status);
if(pos != 0) {
pos->beginIndex = fp.getBeginIndex();
pos->endIndex = fp.getEndIndex();
}
return res.extract(result, resultLength, *status);
}
U_CAPI int32_t U_EXPORT2
unum_formatDouble( const UNumberFormat* fmt,
double number,
UChar* result,
int32_t resultLength,
UFieldPosition *pos, /* 0 if ignore */
UErrorCode* status)
{
if(U_FAILURE(*status)) return -1;
UnicodeString res;
if(!(result==NULL && resultLength==0)) {
// NULL destination for pure preflighting: empty dummy string
// otherwise, alias the destination buffer
res.setTo(result, 0, resultLength);
}
FieldPosition fp;
if(pos != 0)
fp.setField(pos->field);
((const NumberFormat*)fmt)->format(number, res, fp, *status);
if(pos != 0) {
pos->beginIndex = fp.getBeginIndex();
pos->endIndex = fp.getEndIndex();
}
return res.extract(result, resultLength, *status);
}
U_CAPI int32_t U_EXPORT2
unum_formatDoubleForFields(const UNumberFormat* format,
double number,
UChar* result,
int32_t resultLength,
UFieldPositionIterator* fpositer,
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 NumberFormat*)format)->format(number, res, (FieldPositionIterator*)fpositer, *status);
return res.extract(result, resultLength, *status);
}
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 = static_cast<int32_t>(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
unum_formatDoubleCurrency(const UNumberFormat* fmt,
double number,
UChar* currency,
UChar* result,
int32_t resultLength,
UFieldPosition* pos, /* ignored if 0 */
UErrorCode* status) {
if (U_FAILURE(*status)) return -1;
UnicodeString res;
if (!(result==NULL && resultLength==0)) {
// NULL destination for pure preflighting: empty dummy string
// otherwise, alias the destination buffer
res.setTo(result, 0, resultLength);
}
FieldPosition fp;
if (pos != 0) {
fp.setField(pos->field);
}
CurrencyAmount *tempCurrAmnt = new CurrencyAmount(number, currency, *status);
// Check for null pointer.
if (tempCurrAmnt == NULL) {
*status = U_MEMORY_ALLOCATION_ERROR;
return -1;
}
Formattable n(tempCurrAmnt);
((const NumberFormat*)fmt)->format(n, res, fp, *status);
if (pos != 0) {
pos->beginIndex = fp.getBeginIndex();
pos->endIndex = fp.getEndIndex();
}
return res.extract(result, resultLength, *status);
}
static void
parseRes(Formattable& res,
const UNumberFormat* fmt,
const UChar* text,
int32_t textLength,
int32_t *parsePos /* 0 = start */,
UErrorCode *status)
{
if(U_FAILURE(*status))
return;
const UnicodeString src((UBool)(textLength == -1), text, textLength);
ParsePosition pp;
if(parsePos != 0)
pp.setIndex(*parsePos);
((const NumberFormat*)fmt)->parse(src, res, pp);
if(pp.getErrorIndex() != -1) {
*status = U_PARSE_ERROR;
if(parsePos != 0) {
*parsePos = pp.getErrorIndex();
}
} else if(parsePos != 0) {
*parsePos = pp.getIndex();
}
}
U_CAPI int32_t U_EXPORT2
unum_parse( const UNumberFormat* fmt,
const UChar* text,
int32_t textLength,
int32_t *parsePos /* 0 = start */,
UErrorCode *status)
{
Formattable res;
parseRes(res, fmt, text, textLength, parsePos, status);
return res.getLong(*status);
}
U_CAPI int64_t U_EXPORT2
unum_parseInt64( const UNumberFormat* fmt,
const UChar* text,
int32_t textLength,
int32_t *parsePos /* 0 = start */,
UErrorCode *status)
{
Formattable res;
parseRes(res, fmt, text, textLength, parsePos, status);
return res.getInt64(*status);
}
U_CAPI double U_EXPORT2
unum_parseDouble( const UNumberFormat* fmt,
const UChar* text,
int32_t textLength,
int32_t *parsePos /* 0 = start */,
UErrorCode *status)
{
Formattable res;
parseRes(res, fmt, text, textLength, parsePos, status);
return res.getDouble(*status);
}
U_CAPI int32_t U_EXPORT2
unum_parseDecimal(const UNumberFormat* fmt,
const UChar* text,
int32_t textLength,
int32_t *parsePos /* 0 = start */,
char *outBuf,
int32_t outBufLength,
UErrorCode *status)
{
if (U_FAILURE(*status)) {
return -1;
}
if ((outBuf == NULL && outBufLength != 0) || outBufLength < 0) {
*status = U_ILLEGAL_ARGUMENT_ERROR;
return -1;
}
Formattable res;
parseRes(res, fmt, text, textLength, parsePos, status);
StringPiece sp = res.getDecimalNumber(*status);
if (U_FAILURE(*status)) {
return -1;
} else if (sp.size() > outBufLength) {
*status = U_BUFFER_OVERFLOW_ERROR;
} else if (sp.size() == outBufLength) {
uprv_strncpy(outBuf, sp.data(), sp.size());
*status = U_STRING_NOT_TERMINATED_WARNING;
} else {
U_ASSERT(outBufLength > 0);
uprv_strcpy(outBuf, sp.data());
}
return sp.size();
}
U_CAPI double U_EXPORT2
unum_parseDoubleCurrency(const UNumberFormat* fmt,
const UChar* text,
int32_t textLength,
int32_t* parsePos, /* 0 = start */
UChar* currency,
UErrorCode* status) {
double doubleVal = 0.0;
currency[0] = 0;
if (U_FAILURE(*status)) {
return doubleVal;
}
const UnicodeString src((UBool)(textLength == -1), text, textLength);
ParsePosition pp;
if (parsePos != NULL) {
pp.setIndex(*parsePos);
}
*status = U_PARSE_ERROR; // assume failure, reset if succeed
LocalPointer<CurrencyAmount> currAmt(((const NumberFormat*)fmt)->parseCurrency(src, pp));
if (pp.getErrorIndex() != -1) {
if (parsePos != NULL) {
*parsePos = pp.getErrorIndex();
}
} else {
if (parsePos != NULL) {
*parsePos = pp.getIndex();
}
if (pp.getIndex() > 0) {
*status = U_ZERO_ERROR;
u_strcpy(currency, currAmt->getISOCurrency());
doubleVal = currAmt->getNumber().getDouble(*status);
}
}
return doubleVal;
}
U_CAPI const char* U_EXPORT2
unum_getAvailable(int32_t index)
{
return uloc_getAvailable(index);
}
U_CAPI int32_t U_EXPORT2
unum_countAvailable()
{
return uloc_countAvailable();
}
U_CAPI int32_t U_EXPORT2
unum_getAttribute(const UNumberFormat* fmt,
UNumberFormatAttribute attr)
{
const NumberFormat* nf = reinterpret_cast<const NumberFormat*>(fmt);
if (attr == UNUM_LENIENT_PARSE) {
// Supported for all subclasses
return nf->isLenient();
}
else if (attr == UNUM_MAX_INTEGER_DIGITS) {
return nf->getMaximumIntegerDigits();
}
else if (attr == UNUM_MIN_INTEGER_DIGITS) {
return nf->getMinimumIntegerDigits();
}
else if (attr == UNUM_INTEGER_DIGITS) {
// TODO: what should this return?
return nf->getMinimumIntegerDigits();
}
else if (attr == UNUM_MAX_FRACTION_DIGITS) {
return nf->getMaximumFractionDigits();
}
else if (attr == UNUM_MIN_FRACTION_DIGITS) {
return nf->getMinimumFractionDigits();
}
else if (attr == UNUM_FRACTION_DIGITS) {
// TODO: what should this return?
return nf->getMinimumFractionDigits();
}
else if (attr == UNUM_ROUNDING_MODE) {
return nf->getRoundingMode();
}
// The remaining attributes are only supported for DecimalFormat
const DecimalFormat* df = dynamic_cast<const DecimalFormat*>(nf);
if (df != NULL) {
UErrorCode ignoredStatus = U_ZERO_ERROR;
return df->getAttribute(attr, ignoredStatus);
}
return -1;
}
U_CAPI void U_EXPORT2
unum_setAttribute( UNumberFormat* fmt,
UNumberFormatAttribute attr,
int32_t newValue)
{
NumberFormat* nf = reinterpret_cast<NumberFormat*>(fmt);
if (attr == UNUM_LENIENT_PARSE) {
// Supported for all subclasses
// keep this here as the class may not be a DecimalFormat
return nf->setLenient(newValue != 0);
}
else if (attr == UNUM_MAX_INTEGER_DIGITS) {
return nf->setMaximumIntegerDigits(newValue);
}
else if (attr == UNUM_MIN_INTEGER_DIGITS) {
return nf->setMinimumIntegerDigits(newValue);
}
else if (attr == UNUM_INTEGER_DIGITS) {
nf->setMinimumIntegerDigits(newValue);
return nf->setMaximumIntegerDigits(newValue);
}
else if (attr == UNUM_MAX_FRACTION_DIGITS) {
return nf->setMaximumFractionDigits(newValue);
}
else if (attr == UNUM_MIN_FRACTION_DIGITS) {
return nf->setMinimumFractionDigits(newValue);
}
else if (attr == UNUM_FRACTION_DIGITS) {
nf->setMinimumFractionDigits(newValue);
return nf->setMaximumFractionDigits(newValue);
}
else if (attr == UNUM_ROUNDING_MODE) {
return nf->setRoundingMode((NumberFormat::ERoundingMode)newValue);
}
// The remaining attributes are only supported for DecimalFormat
DecimalFormat* df = dynamic_cast<DecimalFormat*>(nf);
if (df != NULL) {
UErrorCode ignoredStatus = U_ZERO_ERROR;
df->setAttribute(attr, newValue, ignoredStatus);
}
}
U_CAPI double U_EXPORT2
unum_getDoubleAttribute(const UNumberFormat* fmt,
UNumberFormatAttribute attr)
{
const NumberFormat* nf = reinterpret_cast<const NumberFormat*>(fmt);
const DecimalFormat* df = dynamic_cast<const DecimalFormat*>(nf);
if (df != NULL && attr == UNUM_ROUNDING_INCREMENT) {
return df->getRoundingIncrement();
} else {
return -1.0;
}
}
U_CAPI void U_EXPORT2
unum_setDoubleAttribute( UNumberFormat* fmt,
UNumberFormatAttribute attr,
double newValue)
{
NumberFormat* nf = reinterpret_cast<NumberFormat*>(fmt);
DecimalFormat* df = dynamic_cast<DecimalFormat*>(nf);
if (df != NULL && attr == UNUM_ROUNDING_INCREMENT) {
df->setRoundingIncrement(newValue);
}
}
U_CAPI int32_t U_EXPORT2
unum_getTextAttribute(const UNumberFormat* fmt,
UNumberFormatTextAttribute tag,
UChar* result,
int32_t resultLength,
UErrorCode* status)
{
if(U_FAILURE(*status))
return -1;
UnicodeString res;
if(!(result==NULL && resultLength==0)) {
// NULL destination for pure preflighting: empty dummy string
// otherwise, alias the destination buffer
res.setTo(result, 0, resultLength);
}
const NumberFormat* nf = reinterpret_cast<const NumberFormat*>(fmt);
const DecimalFormat* df = dynamic_cast<const DecimalFormat*>(nf);
if (df != NULL) {
switch(tag) {
case UNUM_POSITIVE_PREFIX:
df->getPositivePrefix(res);
break;
case UNUM_POSITIVE_SUFFIX:
df->getPositiveSuffix(res);
break;
case UNUM_NEGATIVE_PREFIX:
df->getNegativePrefix(res);
break;
case UNUM_NEGATIVE_SUFFIX:
df->getNegativeSuffix(res);
break;
case UNUM_PADDING_CHARACTER:
res = df->getPadCharacterString();
break;
case UNUM_CURRENCY_CODE:
res = UnicodeString(df->getCurrency());
break;
default:
*status = U_UNSUPPORTED_ERROR;
return -1;
}
} else {
const RuleBasedNumberFormat* rbnf = dynamic_cast<const RuleBasedNumberFormat*>(nf);
U_ASSERT(rbnf != NULL);
if (tag == UNUM_DEFAULT_RULESET) {
res = rbnf->getDefaultRuleSetName();
} else if (tag == UNUM_PUBLIC_RULESETS) {
int32_t count = rbnf->getNumberOfRuleSetNames();
for (int i = 0; i < count; ++i) {
res += rbnf->getRuleSetName(i);
res += (UChar)0x003b; // semicolon
}
} else {
*status = U_UNSUPPORTED_ERROR;
return -1;
}
}
return res.extract(result, resultLength, *status);
}
U_CAPI void U_EXPORT2
unum_setTextAttribute( UNumberFormat* fmt,
UNumberFormatTextAttribute tag,
const UChar* newValue,
int32_t newValueLength,
UErrorCode *status)
{
if(U_FAILURE(*status))
return;
UnicodeString val(newValue, newValueLength);
NumberFormat* nf = reinterpret_cast<NumberFormat*>(fmt);
DecimalFormat* df = dynamic_cast<DecimalFormat*>(nf);
if (df != NULL) {
switch(tag) {
case UNUM_POSITIVE_PREFIX:
df->setPositivePrefix(val);
break;
case UNUM_POSITIVE_SUFFIX:
df->setPositiveSuffix(val);
break;
case UNUM_NEGATIVE_PREFIX:
df->setNegativePrefix(val);
break;
case UNUM_NEGATIVE_SUFFIX:
df->setNegativeSuffix(val);
break;
case UNUM_PADDING_CHARACTER:
df->setPadCharacter(val);
break;
case UNUM_CURRENCY_CODE:
df->setCurrency(val.getTerminatedBuffer(), *status);
break;
default:
*status = U_UNSUPPORTED_ERROR;
break;
}
} else {
RuleBasedNumberFormat* rbnf = dynamic_cast<RuleBasedNumberFormat*>(nf);
U_ASSERT(rbnf != NULL);
if (tag == UNUM_DEFAULT_RULESET) {
rbnf->setDefaultRuleSet(val, *status);
} else {
*status = U_UNSUPPORTED_ERROR;
}
}
}
U_CAPI int32_t U_EXPORT2
unum_toPattern( const UNumberFormat* fmt,
UBool isPatternLocalized,
UChar* result,
int32_t resultLength,
UErrorCode* status)
{
if(U_FAILURE(*status))
return -1;
UnicodeString pat;
if(!(result==NULL && resultLength==0)) {
// NULL destination for pure preflighting: empty dummy string
// otherwise, alias the destination buffer
pat.setTo(result, 0, resultLength);
}
const NumberFormat* nf = reinterpret_cast<const NumberFormat*>(fmt);
const DecimalFormat* df = dynamic_cast<const DecimalFormat*>(nf);
if (df != NULL) {
if(isPatternLocalized)
df->toLocalizedPattern(pat);
else
df->toPattern(pat);
} else {
const RuleBasedNumberFormat* rbnf = dynamic_cast<const RuleBasedNumberFormat*>(nf);
U_ASSERT(rbnf != NULL);
pat = rbnf->getRules();
}
return pat.extract(result, resultLength, *status);
}
U_CAPI int32_t U_EXPORT2
unum_getSymbol(const UNumberFormat *fmt,
UNumberFormatSymbol symbol,
UChar *buffer,
int32_t size,
UErrorCode *status)
{
if(status==NULL || U_FAILURE(*status)) {
return 0;
}
if(fmt==NULL || symbol< 0 || symbol>=UNUM_FORMAT_SYMBOL_COUNT) {
*status=U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
const NumberFormat *nf = reinterpret_cast<const NumberFormat *>(fmt);
const DecimalFormat *dcf = dynamic_cast<const DecimalFormat *>(nf);
if (dcf == NULL) {
*status = U_UNSUPPORTED_ERROR;
return 0;
}
return dcf->
getDecimalFormatSymbols()->
getConstSymbol((DecimalFormatSymbols::ENumberFormatSymbol)symbol).
extract(buffer, size, *status);
}
U_CAPI void U_EXPORT2
unum_setSymbol(UNumberFormat *fmt,
UNumberFormatSymbol symbol,
const UChar *value,
int32_t length,
UErrorCode *status)
{
if(status==NULL || U_FAILURE(*status)) {
return;
}
if(fmt==NULL || symbol< 0 || symbol>=UNUM_FORMAT_SYMBOL_COUNT || value==NULL || length<-1) {
*status=U_ILLEGAL_ARGUMENT_ERROR;
return;
}
NumberFormat *nf = reinterpret_cast<NumberFormat *>(fmt);
DecimalFormat *dcf = dynamic_cast<DecimalFormat *>(nf);
if (dcf == NULL) {
*status = U_UNSUPPORTED_ERROR;
return;
}
DecimalFormatSymbols symbols(*dcf->getDecimalFormatSymbols());
symbols.setSymbol((DecimalFormatSymbols::ENumberFormatSymbol)symbol,
UnicodeString(value, length)); /* UnicodeString can handle the case when length = -1. */
dcf->setDecimalFormatSymbols(symbols);
}
U_CAPI void U_EXPORT2
unum_applyPattern( UNumberFormat *fmt,
UBool localized,
const UChar *pattern,
int32_t patternLength,
UParseError *parseError,
UErrorCode* status)
{
UErrorCode tStatus = U_ZERO_ERROR;
UParseError tParseError;
if(parseError == NULL){
parseError = &tParseError;
}
if(status==NULL){
status = &tStatus;
}
int32_t len = (patternLength == -1 ? u_strlen(pattern) : patternLength);
const UnicodeString pat((UChar*)pattern, len, len);
// Verify if the object passed is a DecimalFormat object
NumberFormat* nf = reinterpret_cast<NumberFormat*>(fmt);
DecimalFormat* df = dynamic_cast<DecimalFormat*>(nf);
if (df != NULL) {
if(localized) {
df->applyLocalizedPattern(pat,*parseError, *status);
} else {
df->applyPattern(pat,*parseError, *status);
}
} else {
*status = U_UNSUPPORTED_ERROR;
return;
}
}
U_CAPI const char* U_EXPORT2
unum_getLocaleByType(const UNumberFormat *fmt,
ULocDataLocaleType type,
UErrorCode* status)
{
if (fmt == NULL) {
if (U_SUCCESS(*status)) {
*status = U_ILLEGAL_ARGUMENT_ERROR;
}
return NULL;
}
return ((const Format*)fmt)->getLocaleID(type, *status);
}
U_CAPI void U_EXPORT2
unum_setContext(UNumberFormat* fmt, UDisplayContext value, UErrorCode* status)
{
if (U_FAILURE(*status)) {
return;
}
((NumberFormat*)fmt)->setContext(value, *status);
return;
}
U_CAPI UDisplayContext U_EXPORT2
unum_getContext(const UNumberFormat *fmt, UDisplayContextType type, UErrorCode* status)
{
if (U_FAILURE(*status)) {
return (UDisplayContext)0;
}
return ((const NumberFormat*)fmt)->getContext(type, *status);
}
U_INTERNAL UFormattable * U_EXPORT2
unum_parseToUFormattable(const UNumberFormat* fmt,
UFormattable *result,
const UChar* text,
int32_t textLength,
int32_t* parsePos, /* 0 = start */
UErrorCode* status) {
UFormattable *newFormattable = NULL;
if (U_FAILURE(*status)) return result;
if (fmt == NULL || (text==NULL && textLength!=0)) {
*status = U_ILLEGAL_ARGUMENT_ERROR;
return result;
}
if (result == NULL) { // allocate if not allocated.
newFormattable = result = ufmt_open(status);
}
parseRes(*(Formattable::fromUFormattable(result)), fmt, text, textLength, parsePos, status);
if (U_FAILURE(*status) && newFormattable != NULL) {
ufmt_close(newFormattable);
result = NULL; // deallocate if there was a parse error
}
return result;
}
U_INTERNAL int32_t U_EXPORT2
unum_formatUFormattable(const UNumberFormat* fmt,
const UFormattable *number,
UChar *result,
int32_t resultLength,
UFieldPosition *pos, /* ignored if 0 */
UErrorCode *status) {
if (U_FAILURE(*status)) {
return 0;
}
if (fmt == NULL || number==NULL ||
(result==NULL ? resultLength!=0 : resultLength<0)) {
*status = U_ILLEGAL_ARGUMENT_ERROR;
return 0;
}
UnicodeString res(result, 0, resultLength);
FieldPosition fp;
if(pos != 0)
fp.setField(pos->field);
((const NumberFormat*)fmt)->format(*(Formattable::fromUFormattable(number)), res, fp, *status);
if(pos != 0) {
pos->beginIndex = fp.getBeginIndex();
pos->endIndex = fp.getEndIndex();
}
return res.extract(result, resultLength, *status);
}
#endif /* #if !UCONFIG_NO_FORMATTING */