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Diffstat (limited to 'src/corelib/text/qlocale_unix.cpp')
| -rw-r--r-- | src/corelib/text/qlocale_unix.cpp | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/src/corelib/text/qlocale_unix.cpp b/src/corelib/text/qlocale_unix.cpp new file mode 100644 index 0000000000..ff4274d932 --- /dev/null +++ b/src/corelib/text/qlocale_unix.cpp @@ -0,0 +1,300 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** 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 +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** 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 +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** 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 +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qlocale_p.h" + +#include "qstringbuilder.h" +#include "qdatetime.h" +#include "qstringlist.h" +#include "qvariant.h" +#include "qreadwritelock.h" + +QT_BEGIN_NAMESPACE + +#ifndef QT_NO_SYSTEMLOCALE +struct QSystemLocaleData +{ + QSystemLocaleData() + : lc_numeric(QLocale::C) + ,lc_time(QLocale::C) + ,lc_monetary(QLocale::C) + ,lc_messages(QLocale::C) + { + readEnvironment(); + } + + void readEnvironment(); + + QReadWriteLock lock; + + QLocale lc_numeric; + QLocale lc_time; + QLocale lc_monetary; + QLocale lc_messages; + QByteArray lc_messages_var; + QByteArray lc_measurement_var; + QByteArray lc_collate_var; + QStringList uiLanguages; +}; + +void QSystemLocaleData::readEnvironment() +{ + QWriteLocker locker(&lock); + + QByteArray all = qgetenv("LC_ALL"); + QByteArray numeric = all.isEmpty() ? qgetenv("LC_NUMERIC") : all; + QByteArray time = all.isEmpty() ? qgetenv("LC_TIME") : all; + QByteArray monetary = all.isEmpty() ? qgetenv("LC_MONETARY") : all; + lc_messages_var = all.isEmpty() ? qgetenv("LC_MESSAGES") : all; + lc_measurement_var = all.isEmpty() ? qgetenv("LC_MEASUREMENT") : all; + lc_collate_var = all.isEmpty() ? qgetenv("LC_COLLATE") : all; + QByteArray lang = qgetenv("LANG"); + if (lang.isEmpty()) + lang = QByteArray("C"); + if (numeric.isEmpty()) + numeric = lang; + if (time.isEmpty()) + time = lang; + if (monetary.isEmpty()) + monetary = lang; + if (lc_messages_var.isEmpty()) + lc_messages_var = lang; + if (lc_measurement_var.isEmpty()) + lc_measurement_var = lang; + if (lc_collate_var.isEmpty()) + lc_collate_var = lang; + lc_numeric = QLocale(QString::fromLatin1(numeric)); + lc_time = QLocale(QString::fromLatin1(time)); + lc_monetary = QLocale(QString::fromLatin1(monetary)); + lc_messages = QLocale(QString::fromLatin1(lc_messages_var)); +} + +Q_GLOBAL_STATIC(QSystemLocaleData, qSystemLocaleData) + +#endif + +#ifndef QT_NO_SYSTEMLOCALE + +static bool contradicts(const QString &maybe, const QString &known) +{ + if (maybe.isEmpty()) + return false; + + /* + If \a known (our current best shot at deciding which language to use) + provides more information (e.g. script, country) than \a maybe (a + candidate to replace \a known) and \a maybe agrees with \a known in what + it does provide, we keep \a known; this happens when \a maybe comes from + LANGUAGE (usually a simple language code) and LANG includes script and/or + country. A textual comparison won't do because, for example, bn (Bengali) + isn't a prefix of ben_IN, but the latter is a refinement of the former. + (Meanwhile, bn is a prefix of bnt, Bantu; and a prefix of ben is be, + Belarusian. There are many more such prefixings between two- and + three-letter codes.) + */ + QLocale::Language langm, langk; + QLocale::Script scriptm, scriptk; + QLocale::Country landm, landk; + QLocalePrivate::getLangAndCountry(maybe, langm, scriptm, landm); + QLocalePrivate::getLangAndCountry(known, langk, scriptk, landk); + return (langm != QLocale::AnyLanguage && langm != langk) + || (scriptm != QLocale::AnyScript && scriptm != scriptk) + || (landm != QLocale::AnyCountry && landm != landk); +} + +QLocale QSystemLocale::fallbackUiLocale() const +{ + // See man 7 locale for precedence - LC_ALL beats LC_MESSAGES beats LANG: + QString lang = qEnvironmentVariable("LC_ALL"); + if (lang.isEmpty()) + lang = qEnvironmentVariable("LC_MESSAGES"); + if (lang.isEmpty()) + lang = qEnvironmentVariable("LANG"); + // if the locale is the "C" locale, then we can return the language we found here: + if (lang.isEmpty() || lang == QLatin1String("C") || lang == QLatin1String("POSIX")) + return QLocale(lang); + + // ... otherwise, if the first part of LANGUAGE says more than or + // contradicts what we have, use that: + QString language = qEnvironmentVariable("LANGUAGE"); + if (!language.isEmpty()) { + language = language.split(QLatin1Char(':')).constFirst(); + if (contradicts(language, lang)) + return QLocale(language); + } + + return QLocale(lang); +} + +QVariant QSystemLocale::query(QueryType type, QVariant in) const +{ + QSystemLocaleData *d = qSystemLocaleData(); + + if (type == LocaleChanged) { + d->readEnvironment(); + return QVariant(); + } + + QReadLocker locker(&d->lock); + + const QLocale &lc_numeric = d->lc_numeric; + const QLocale &lc_time = d->lc_time; + const QLocale &lc_monetary = d->lc_monetary; + const QLocale &lc_messages = d->lc_messages; + + switch (type) { + case DecimalPoint: + return lc_numeric.decimalPoint(); + case GroupSeparator: + return lc_numeric.groupSeparator(); + case ZeroDigit: + return lc_numeric.zeroDigit(); + case NegativeSign: + return lc_numeric.negativeSign(); + case DateFormatLong: + return lc_time.dateFormat(QLocale::LongFormat); + case DateFormatShort: + return lc_time.dateFormat(QLocale::ShortFormat); + case TimeFormatLong: + return lc_time.timeFormat(QLocale::LongFormat); + case TimeFormatShort: + return lc_time.timeFormat(QLocale::ShortFormat); + case DayNameLong: + return lc_time.dayName(in.toInt(), QLocale::LongFormat); + case DayNameShort: + return lc_time.dayName(in.toInt(), QLocale::ShortFormat); + case MonthNameLong: + return lc_time.monthName(in.toInt(), QLocale::LongFormat); + case MonthNameShort: + return lc_time.monthName(in.toInt(), QLocale::ShortFormat); + case StandaloneMonthNameLong: + return lc_time.standaloneMonthName(in.toInt(), QLocale::LongFormat); + case StandaloneMonthNameShort: + return lc_time.standaloneMonthName(in.toInt(), QLocale::ShortFormat); + case DateToStringLong: + return lc_time.toString(in.toDate(), QLocale::LongFormat); + case DateToStringShort: + return lc_time.toString(in.toDate(), QLocale::ShortFormat); + case TimeToStringLong: + return lc_time.toString(in.toTime(), QLocale::LongFormat); + case TimeToStringShort: + return lc_time.toString(in.toTime(), QLocale::ShortFormat); + case DateTimeFormatLong: + return lc_time.dateTimeFormat(QLocale::LongFormat); + case DateTimeFormatShort: + return lc_time.dateTimeFormat(QLocale::ShortFormat); + case DateTimeToStringLong: + return lc_time.toString(in.toDateTime(), QLocale::LongFormat); + case DateTimeToStringShort: + return lc_time.toString(in.toDateTime(), QLocale::ShortFormat); + case PositiveSign: + return lc_numeric.positiveSign(); + case AMText: + return lc_time.amText(); + case PMText: + return lc_time.pmText(); + case FirstDayOfWeek: + return lc_time.firstDayOfWeek(); + case CurrencySymbol: + return lc_monetary.currencySymbol(QLocale::CurrencySymbolFormat(in.toUInt())); + case CurrencyToString: { + switch (in.type()) { + case QVariant::Int: + return lc_monetary.toCurrencyString(in.toInt()); + case QVariant::UInt: + return lc_monetary.toCurrencyString(in.toUInt()); + case QVariant::Double: + return lc_monetary.toCurrencyString(in.toDouble()); + case QVariant::LongLong: + return lc_monetary.toCurrencyString(in.toLongLong()); + case QVariant::ULongLong: + return lc_monetary.toCurrencyString(in.toULongLong()); + default: + break; + } + return QString(); + } + case MeasurementSystem: { + const QString meas_locale = QString::fromLatin1(d->lc_measurement_var); + if (meas_locale.compare(QLatin1String("Metric"), Qt::CaseInsensitive) == 0) + return QLocale::MetricSystem; + if (meas_locale.compare(QLatin1String("Other"), Qt::CaseInsensitive) == 0) + return QLocale::MetricSystem; + return QVariant((int)QLocale(meas_locale).measurementSystem()); + } + case Collation: + return QString::fromLatin1(d->lc_collate_var); + case UILanguages: { + if (!d->uiLanguages.isEmpty()) + return d->uiLanguages; + QString languages = QString::fromLatin1(qgetenv("LANGUAGE")); + QStringList lst; + if (languages.isEmpty()) + lst.append(QString::fromLatin1(d->lc_messages_var)); + else + lst = languages.split(QLatin1Char(':')); + + for (int i = 0; i < lst.size(); ++i) { + const QString &name = lst.at(i); + QString lang, script, cntry; + if (qt_splitLocaleName(name, lang, script, cntry)) { + if (!cntry.length()) + d->uiLanguages.append(lang); + else + d->uiLanguages.append(lang % QLatin1Char('-') % cntry); + } + } + return d->uiLanguages.isEmpty() ? QVariant() : QVariant(d->uiLanguages); + } + case StringToStandardQuotation: + return lc_messages.quoteString(in.value<QStringRef>()); + case StringToAlternateQuotation: + return lc_messages.quoteString(in.value<QStringRef>(), QLocale::AlternateQuotation); + case ListToSeparatedString: + return lc_messages.createSeparatedList(in.toStringList()); + case LocaleChanged: + Q_ASSERT(false); + default: + break; + } + return QVariant(); +} +#endif // QT_NO_SYSTEMLOCALE + +QT_END_NAMESPACE |