Details
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Bug
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Resolution: Done
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P2: Important
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5.8.0
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Gentoo Linux
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ab448f731ecd8437c7c5c8b96a0e7f419ec3a7ca (qt/qtbase/5.12) 235ac95520a0fc2c822dedce7358e3c64a764255 (qt/qtbase/dev)
Description
Qt is compiled with ICU:
$ readelf -d /usr/lib/libQt5Core.so.5.8.0 | grep NEEDED | grep icu 0x0000000000000001 (NEEDED) Shared library: [libicui18n.so.58] 0x0000000000000001 (NEEDED) Shared library: [libicuuc.so.58] 0x0000000000000001 (NEEDED) Shared library: [libicudata.so.58]
Example code:
qcollatortest.cpp
#include <QCoreApplication> #include <QDebug> #include <QString> #include <QCollator> #include <QStringList> #include <algorithm> #include <locale> int main(int argc, char** argv) { QCoreApplication app(argc, argv); QStringList src; src << QLatin1String("Aaa"); src << QLatin1String("AAa"); src << QLatin1String("aba"); src << QLatin1String("Bbb"); src << QLatin1String("bab"); QCollator collator; std::sort(src.begin(), src.end(), collator); qDebug() << "qcollator default :" << src; collator.setCaseSensitivity(Qt::CaseSensitive); std::sort(src.begin(), src.end(), collator); qDebug() << "qcollator force cs:" << src; collator.setCaseSensitivity(Qt::CaseInsensitive); std::sort(src.begin(), src.end(), collator); qDebug() << "qcollator force ci:" << src; struct Compare { bool operator()(const QString& left, const QString& right) { return std::locale("")(left.toStdString(), right.toStdString()); } }; std::sort(src.begin(), src.end(), Compare());; qDebug() << "std::locale :" << src; return 0; }
results:
$ LC_COLLATE="C" ./qcollatortest
qcollator default : ("Aaa", "AAa", "aba", "bab", "Bbb")
qcollator force cs: ("Aaa", "AAa", "aba", "bab", "Bbb")
qcollator force ci: ("Aaa", "AAa", "aba", "bab", "Bbb")
std::locale : ("AAa", "Aaa", "Bbb", "aba", "bab")
$ LC_COLLATE="en_US.UTF-8" ./qcollatortest
qcollator default : ("Aaa", "AAa", "aba", "bab", "Bbb")
qcollator force cs: ("Aaa", "AAa", "aba", "bab", "Bbb")
qcollator force ci: ("Aaa", "AAa", "aba", "bab", "Bbb")
std::locale : ("Aaa", "AAa", "aba", "bab", "Bbb")