OSMAND_CORE_API QString OSMAND_CORE_CALL OsmAnd::ICU::transliterateToLatin(const QString& input)
{
QString output;
UErrorCode icuError = U_ZERO_ERROR;
bool ok = true;
const auto pTransliterator = g_pIcuTransliterator->clone();
if(pTransliterator == nullptr || !U_SUCCESS(icuError))
{
LogPrintf(LogSeverityLevel::Error, "ICU error: %d", icuError);
if(pTransliterator != nullptr)
delete pTransliterator;
return input;
}
UnicodeString icuString(reinterpret_cast<const UChar*>(input.unicode()), input.length());
pTransliterator->transliterate(icuString);
output = qMove(QString(reinterpret_cast<const QChar*>(icuString.getBuffer()), icuString.length()));
if(pTransliterator != nullptr)
delete pTransliterator;
if(!ok)
{
LogPrintf(LogSeverityLevel::Error, "ICU error: %d", icuError);
return input;
}
return output;
}
OSMAND_CORE_API QString OSMAND_CORE_CALL OsmAnd::ICU::transliterateToLatin(
const QString& input,
const bool keepAccentsAndDiacriticsInInput /*= true*/,
const bool keepAccentsAndDiacriticsInOutput /*= true*/)
{
QString output;
UErrorCode icuError = U_ZERO_ERROR;
bool ok = true;
const auto pAnyToLatinTransliterator = g_pIcuAnyToLatinTransliterator->clone();
if (pAnyToLatinTransliterator == nullptr || U_FAILURE(icuError))
{
LogPrintf(LogSeverityLevel::Error, "ICU error: %d", icuError);
if (pAnyToLatinTransliterator != nullptr)
delete pAnyToLatinTransliterator;
return input;
}
// Transliterate from any to latin
UnicodeString icuString(reinterpret_cast<const UChar*>(input.unicode()), input.length());
pAnyToLatinTransliterator->transliterate(icuString);
output = qMove(QString(reinterpret_cast<const QChar*>(icuString.getBuffer()), icuString.length()));
// If input and output differ at this point or accents/diacritics should be converted,
// normalize the output again
if ((input.compare(output, Qt::CaseInsensitive) != 0 || !keepAccentsAndDiacriticsInInput) && !keepAccentsAndDiacriticsInOutput)
{
const auto pIcuAccentsAndDiacriticsConverter = g_pIcuAccentsAndDiacriticsConverter->clone();
ok = pIcuAccentsAndDiacriticsConverter != nullptr && U_SUCCESS(icuError);
if (ok)
{
pIcuAccentsAndDiacriticsConverter->transliterate(icuString);
output = qMove(QString(reinterpret_cast<const QChar*>(icuString.getBuffer()), icuString.length()));
}
if (pIcuAccentsAndDiacriticsConverter != nullptr)
delete pIcuAccentsAndDiacriticsConverter;
}
if (pAnyToLatinTransliterator != nullptr)
delete pAnyToLatinTransliterator;
if (!ok)
{
LogPrintf(LogSeverityLevel::Error, "ICU error: %d", icuError);
return input;
}
return output;
}
