| /**************************************************************************** |
| ** |
| ** Copyright (C) 2020 Aleix Pol Gonzalez <aleixpol@kde.org> |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtCore module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
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| ** |
| ** GNU Lesser General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU Lesser |
| ** General Public License version 3 as published by the Free Software |
| ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
| ** packaging of this file. Please review the following information to |
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| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 2.0 or (at your option) the GNU General |
| ** Public license version 3 or any later version approved by the KDE Free |
| ** Qt Foundation. The licenses are as published by the Free Software |
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| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include "qcollator_p.h" |
| #include "qlocale_p.h" |
| #include "qstringlist.h" |
| #include "qstring.h" |
| |
| #include <QDebug> |
| |
| #include <qt_windows.h> |
| #include <qsysinfo.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| //NOTE: SORT_DIGITSASNUMBERS is available since win7 |
| #ifndef SORT_DIGITSASNUMBERS |
| #define SORT_DIGITSASNUMBERS 8 |
| #endif |
| |
| // implemented in qlocale_win.cpp |
| extern LCID qt_inIsoNametoLCID(const char *name); |
| |
| void QCollatorPrivate::init() |
| { |
| collator = 0; |
| if (isC()) |
| return; |
| |
| #ifndef USE_COMPARESTRINGEX |
| localeID = qt_inIsoNametoLCID(QLocalePrivate::get(locale)->bcp47Name().constData()); |
| #else |
| localeName = locale.bcp47Name(); |
| #endif |
| |
| if (caseSensitivity == Qt::CaseInsensitive) |
| collator |= NORM_IGNORECASE; |
| |
| // WINE does not support SORT_DIGITSASNUMBERS :-( |
| // (and its std::sort() crashes on bad comparisons, QTBUG-74209) |
| if (numericMode) |
| collator |= SORT_DIGITSASNUMBERS; |
| |
| if (ignorePunctuation) |
| collator |= NORM_IGNORESYMBOLS; |
| |
| dirty = false; |
| } |
| |
| void QCollatorPrivate::cleanup() |
| { |
| } |
| |
| int QCollator::compare(QStringView s1, QStringView s2) const |
| { |
| if (!s1.size()) |
| return s2.size() ? -1 : 0; |
| if (!s2.size()) |
| return +1; |
| |
| if (d->isC()) |
| return s1.compare(s2, d->caseSensitivity); |
| |
| if (d->dirty) |
| d->init(); |
| |
| //* from Windows documentation * |
| // Returns one of the following values if successful. To maintain the C |
| // runtime convention of comparing strings, the value 2 can be subtracted |
| // from a nonzero return value. Then, the meaning of <0, ==0, and >0 is |
| // consistent with the C runtime. |
| // [...] The function returns 0 if it does not succeed. |
| // https://docs.microsoft.com/en-us/windows/desktop/api/stringapiset/nf-stringapiset-comparestringex#return-value |
| |
| #ifndef USE_COMPARESTRINGEX |
| const int ret = CompareString(d->localeID, d->collator, |
| reinterpret_cast<const wchar_t *>(s1.data()), s1.size(), |
| reinterpret_cast<const wchar_t *>(s2.data()), s2.size()); |
| #else |
| const int ret = CompareStringEx(LPCWSTR(d->localeName.utf16()), d->collator, |
| reinterpret_cast<LPCWSTR>(s1.data()), s1.size(), |
| reinterpret_cast<LPCWSTR>(s2.data()), s2.size(), |
| nullptr, nullptr, 0); |
| #endif |
| if (Q_LIKELY(ret)) |
| return ret - 2; |
| |
| switch (DWORD error = GetLastError()) { |
| case ERROR_INVALID_FLAGS: |
| qWarning("Unsupported flags (%d) used in QCollator", int(d->collator)); |
| break; |
| case ERROR_INVALID_PARAMETER: |
| qWarning("Invalid parameter for QCollator::compare()"); |
| break; |
| default: |
| qWarning("Failed (%ld) comparison in QCollator::compare()", long(error)); |
| break; |
| } |
| // We have no idea what to return, so pretend we think they're equal. |
| // At least that way we'll be consistent if we get the same values swapped ... |
| return 0; |
| } |
| |
| QCollatorSortKey QCollator::sortKey(const QString &string) const |
| { |
| if (d->dirty) |
| d->init(); |
| if (d->isC()) |
| return QCollatorSortKey(new QCollatorSortKeyPrivate(string)); |
| |
| #ifndef USE_COMPARESTRINGEX |
| int size = LCMapStringW(d->localeID, LCMAP_SORTKEY | d->collator, |
| reinterpret_cast<const wchar_t*>(string.constData()), string.size(), |
| 0, 0); |
| #else |
| int size = LCMapStringEx(LPCWSTR(d->localeName.utf16()), LCMAP_SORTKEY | d->collator, |
| reinterpret_cast<LPCWSTR>(string.constData()), string.size(), |
| 0, 0, NULL, NULL, 0); |
| #endif |
| QString ret(size, Qt::Uninitialized); |
| #ifndef USE_COMPARESTRINGEX |
| int finalSize = LCMapStringW(d->localeID, LCMAP_SORTKEY | d->collator, |
| reinterpret_cast<const wchar_t*>(string.constData()), string.size(), |
| reinterpret_cast<wchar_t*>(ret.data()), ret.size()); |
| #else |
| int finalSize = LCMapStringEx(LPCWSTR(d->localeName.utf16()), LCMAP_SORTKEY | d->collator, |
| reinterpret_cast<LPCWSTR>(string.constData()), string.size(), |
| reinterpret_cast<LPWSTR>(ret.data()), ret.size(), |
| NULL, NULL, 0); |
| #endif |
| if (finalSize == 0) { |
| qWarning() |
| << "there were problems when generating the ::sortKey by LCMapStringW with error:" |
| << GetLastError(); |
| } |
| return QCollatorSortKey(new QCollatorSortKeyPrivate(std::move(ret))); |
| } |
| |
| int QCollatorSortKey::compare(const QCollatorSortKey &otherKey) const |
| { |
| return d->m_key.compare(otherKey.d->m_key); |
| } |
| |
| QT_END_NAMESPACE |