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authorEdward Welbourne <edward.welbourne@qt.io>2019-05-27 19:13:54 +0200
committerEdward Welbourne <edward.welbourne@qt.io>2019-07-10 17:05:30 +0200
commita9aa206b7b8ac4e69f8c46233b4080e00e845ff5 (patch)
tree0d19cb1f1a3b9d79d322e6e63f6f72160977ca67 /src/corelib/text/qlocale_unix.cpp
parent85d3061c1cd4617ef09cb381320611c27da205a5 (diff)
Move text-related code out of corelib/tools/ to corelib/text/
This includes byte array, string, char, unicode, locale, collation and regular expressions. Change-Id: I8b125fa52c8c513eb57a0f1298b91910e5a0d786 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Diffstat (limited to 'src/corelib/text/qlocale_unix.cpp')
-rw-r--r--src/corelib/text/qlocale_unix.cpp300
1 files changed, 300 insertions, 0 deletions
diff --git a/src/corelib/text/qlocale_unix.cpp b/src/corelib/text/qlocale_unix.cpp
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+++ b/src/corelib/text/qlocale_unix.cpp
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+/****************************************************************************
+**
+** 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