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-rw-r--r--src/corelib/tools/qlocale.cpp355
1 files changed, 288 insertions, 67 deletions
diff --git a/src/corelib/tools/qlocale.cpp b/src/corelib/tools/qlocale.cpp
index 697e0062dd..d5a024177d 100644
--- a/src/corelib/tools/qlocale.cpp
+++ b/src/corelib/tools/qlocale.cpp
@@ -89,8 +89,9 @@ QT_BEGIN_INCLUDE_NAMESPACE
#include "qlocale_data_p.h"
QT_END_INCLUDE_NAMESPACE
-QLocale::Language QLocalePrivate::codeToLanguage(const QChar *code, int len) Q_DECL_NOTHROW
+QLocale::Language QLocalePrivate::codeToLanguage(QStringView code) Q_DECL_NOTHROW
{
+ const auto len = code.size();
if (len != 2 && len != 3)
return QLocale::C;
ushort uc1 = code[0].toLower().unicode();
@@ -131,8 +132,9 @@ QLocale::Language QLocalePrivate::codeToLanguage(const QChar *code, int len) Q_D
return QLocale::C;
}
-QLocale::Script QLocalePrivate::codeToScript(const QChar *code, int len) Q_DECL_NOTHROW
+QLocale::Script QLocalePrivate::codeToScript(QStringView code) Q_DECL_NOTHROW
{
+ const auto len = code.size();
if (len != 4)
return QLocale::AnyScript;
@@ -150,10 +152,12 @@ QLocale::Script QLocalePrivate::codeToScript(const QChar *code, int len) Q_DECL_
return QLocale::AnyScript;
}
-QLocale::Country QLocalePrivate::codeToCountry(const QChar *code, int len) Q_DECL_NOTHROW
+QLocale::Country QLocalePrivate::codeToCountry(QStringView code) Q_DECL_NOTHROW
{
+ const auto len = code.size();
if (len != 2 && len != 3)
return QLocale::AnyCountry;
+
ushort uc1 = code[0].toUpper().unicode();
ushort uc2 = code[1].toUpper().unicode();
ushort uc3 = len > 2 ? code[2].toUpper().unicode() : 0;
@@ -167,48 +171,35 @@ QLocale::Country QLocalePrivate::codeToCountry(const QChar *code, int len) Q_DEC
return QLocale::AnyCountry;
}
-QString QLocalePrivate::languageToCode(QLocale::Language language)
+QLatin1String QLocalePrivate::languageToCode(QLocale::Language language)
{
if (language == QLocale::AnyLanguage)
- return QString();
+ return QLatin1String();
if (language == QLocale::C)
return QLatin1String("C");
const unsigned char *c = language_code_list + 3*(uint(language));
- QString code(c[2] == 0 ? 2 : 3, Qt::Uninitialized);
-
- code[0] = ushort(c[0]);
- code[1] = ushort(c[1]);
- if (c[2] != 0)
- code[2] = ushort(c[2]);
+ return QLatin1String(reinterpret_cast<const char*>(c), c[2] == 0 ? 2 : 3);
- return code;
}
-QString QLocalePrivate::scriptToCode(QLocale::Script script)
+QLatin1String QLocalePrivate::scriptToCode(QLocale::Script script)
{
if (script == QLocale::AnyScript || script > QLocale::LastScript)
- return QString();
+ return QLatin1String();
const unsigned char *c = script_code_list + 4*(uint(script));
- return QString::fromLatin1((const char *)c, 4);
+ return QLatin1String(reinterpret_cast<const char *>(c), 4);
}
-QString QLocalePrivate::countryToCode(QLocale::Country country)
+QLatin1String QLocalePrivate::countryToCode(QLocale::Country country)
{
if (country == QLocale::AnyCountry)
- return QString();
+ return QLatin1String();
const unsigned char *c = country_code_list + 3*(uint(country));
- QString code(c[2] == 0 ? 2 : 3, Qt::Uninitialized);
-
- code[0] = ushort(c[0]);
- code[1] = ushort(c[1]);
- if (c[2] != 0)
- code[2] = ushort(c[2]);
-
- return code;
+ return QLatin1String(reinterpret_cast<const char*>(c), c[2] == 0 ? 2 : 3);
}
// http://www.unicode.org/reports/tr35/#Likely_Subtags
@@ -527,7 +518,7 @@ static const QLocaleData *findLocaleData(const QString &name)
return QLocaleData::findLocaleData(lang, script, cntry);
}
-QString qt_readEscapedFormatString(const QString &format, int *idx)
+QString qt_readEscapedFormatString(QStringView format, int *idx)
{
int &i = *idx;
@@ -561,13 +552,31 @@ QString qt_readEscapedFormatString(const QString &format, int *idx)
return result;
}
-int qt_repeatCount(const QString &s, int i)
+/*!
+ \internal
+
+ Counts the number of identical leading characters in \a s.
+
+ If \a s is empty, returns 0.
+
+ Otherwise, returns the number of consecutive \c{s.front()}
+ characters at the start of \a s.
+
+ \code
+ qt_repeatCount(u"a"); // == 1
+ qt_repeatCount(u"ab"); // == 1
+ qt_repeatCount(u"aab"); // == 2
+ \endcode
+*/
+int qt_repeatCount(QStringView s)
{
- QChar c = s.at(i);
- int j = i + 1;
+ if (s.isEmpty())
+ return 0;
+ const QChar c = s.front();
+ qssize_t j = 1;
while (j < s.size() && s.at(j) == c)
++j;
- return j - i;
+ return int(j);
}
static const QLocaleData *default_data = 0;
@@ -1122,27 +1131,27 @@ QString QLocale::name() const
return d->languageCode() + QLatin1Char('_') + d->countryCode();
}
-static qlonglong toIntegral_helper(const QLocaleData *d, const QChar *data, int len, bool *ok,
+static qlonglong toIntegral_helper(const QLocaleData *d, QStringView str, bool *ok,
QLocale::NumberOptions mode, qlonglong)
{
- return d->stringToLongLong(data, len, 10, ok, mode);
+ return d->stringToLongLong(str, 10, ok, mode);
}
-static qulonglong toIntegral_helper(const QLocaleData *d, const QChar *data, int len, bool *ok,
+static qulonglong toIntegral_helper(const QLocaleData *d, QStringView str, bool *ok,
QLocale::NumberOptions mode, qulonglong)
{
- return d->stringToUnsLongLong(data, len, 10, ok, mode);
+ return d->stringToUnsLongLong(str, 10, ok, mode);
}
template <typename T> static inline
-T toIntegral_helper(const QLocalePrivate *d, const QChar *data, int len, bool *ok)
+T toIntegral_helper(const QLocalePrivate *d, QStringView str, bool *ok)
{
// ### Qt6: use std::conditional<std::is_unsigned<T>::value, qulonglong, qlonglong>::type
const bool isUnsigned = T(0) < T(-1);
typedef typename QtPrivate::QConditional<isUnsigned, qulonglong, qlonglong>::Type Int64;
// we select the right overload by the last, unused parameter
- Int64 val = toIntegral_helper(d->m_data, data, len, ok, d->m_numberOptions, Int64());
+ Int64 val = toIntegral_helper(d->m_data, str, ok, d->m_numberOptions, Int64());
if (T(val) != val) {
if (ok)
*ok = false;
@@ -1211,6 +1220,7 @@ QString QLocale::scriptToString(QLocale::Script script)
return QLatin1String(script_name_list + script_name_index[script]);
}
+#if QT_STRINGVIEW_LEVEL < 2
/*!
Returns the short int represented by the localized string \a s.
@@ -1226,7 +1236,7 @@ QString QLocale::scriptToString(QLocale::Script script)
short QLocale::toShort(const QString &s, bool *ok) const
{
- return toIntegral_helper<short>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<short>(d, s, ok);
}
/*!
@@ -1244,7 +1254,7 @@ short QLocale::toShort(const QString &s, bool *ok) const
ushort QLocale::toUShort(const QString &s, bool *ok) const
{
- return toIntegral_helper<ushort>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<ushort>(d, s, ok);
}
/*!
@@ -1262,7 +1272,7 @@ ushort QLocale::toUShort(const QString &s, bool *ok) const
int QLocale::toInt(const QString &s, bool *ok) const
{
- return toIntegral_helper<int>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<int>(d, s, ok);
}
/*!
@@ -1280,7 +1290,7 @@ int QLocale::toInt(const QString &s, bool *ok) const
uint QLocale::toUInt(const QString &s, bool *ok) const
{
- return toIntegral_helper<uint>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<uint>(d, s, ok);
}
/*!
@@ -1299,7 +1309,7 @@ uint QLocale::toUInt(const QString &s, bool *ok) const
qlonglong QLocale::toLongLong(const QString &s, bool *ok) const
{
- return toIntegral_helper<qlonglong>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<qlonglong>(d, s, ok);
}
/*!
@@ -1318,7 +1328,7 @@ qlonglong QLocale::toLongLong(const QString &s, bool *ok) const
qulonglong QLocale::toULongLong(const QString &s, bool *ok) const
{
- return toIntegral_helper<qulonglong>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<qulonglong>(d, s, ok);
}
/*!
@@ -1361,7 +1371,7 @@ float QLocale::toFloat(const QString &s, bool *ok) const
double QLocale::toDouble(const QString &s, bool *ok) const
{
- return d->m_data->stringToDouble(s.constData(), s.size(), ok, d->m_numberOptions);
+ return d->m_data->stringToDouble(s, ok, d->m_numberOptions);
}
/*!
@@ -1381,7 +1391,7 @@ double QLocale::toDouble(const QString &s, bool *ok) const
short QLocale::toShort(const QStringRef &s, bool *ok) const
{
- return toIntegral_helper<short>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<short>(d, s, ok);
}
/*!
@@ -1401,7 +1411,7 @@ short QLocale::toShort(const QStringRef &s, bool *ok) const
ushort QLocale::toUShort(const QStringRef &s, bool *ok) const
{
- return toIntegral_helper<ushort>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<ushort>(d, s, ok);
}
/*!
@@ -1421,7 +1431,7 @@ ushort QLocale::toUShort(const QStringRef &s, bool *ok) const
int QLocale::toInt(const QStringRef &s, bool *ok) const
{
- return toIntegral_helper<int>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<int>(d, s, ok);
}
/*!
@@ -1441,7 +1451,7 @@ int QLocale::toInt(const QStringRef &s, bool *ok) const
uint QLocale::toUInt(const QStringRef &s, bool *ok) const
{
- return toIntegral_helper<uint>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<uint>(d, s, ok);
}
/*!
@@ -1462,7 +1472,7 @@ uint QLocale::toUInt(const QStringRef &s, bool *ok) const
qlonglong QLocale::toLongLong(const QStringRef &s, bool *ok) const
{
- return toIntegral_helper<qlonglong>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<qlonglong>(d, s, ok);
}
/*!
@@ -1483,7 +1493,7 @@ qlonglong QLocale::toLongLong(const QStringRef &s, bool *ok) const
qulonglong QLocale::toULongLong(const QStringRef &s, bool *ok) const
{
- return toIntegral_helper<qulonglong>(d, s.constData(), s.size(), ok);
+ return toIntegral_helper<qulonglong>(d, s, ok);
}
/*!
@@ -1530,9 +1540,178 @@ float QLocale::toFloat(const QStringRef &s, bool *ok) const
double QLocale::toDouble(const QStringRef &s, bool *ok) const
{
- return d->m_data->stringToDouble(s.constData(), s.size(), ok, d->m_numberOptions);
+ return d->m_data->stringToDouble(s, ok, d->m_numberOptions);
+}
+#endif // QT_STRINGVIEW_LEVEL < 2
+
+/*!
+ Returns the short int represented by the localized string \a s.
+
+ If the conversion fails, the function returns 0.
+
+ If \a ok is not null, failure is reported by setting *ok to false, and
+ success by setting *ok to true.
+
+ This function ignores leading and trailing whitespace.
+
+ \sa toUShort(), toString()
+
+ \since 5.10
+*/
+
+short QLocale::toShort(QStringView s, bool *ok) const
+{
+ return toIntegral_helper<short>(d, s, ok);
+}
+
+/*!
+ Returns the unsigned short int represented by the localized string \a s.
+
+ If the conversion fails, the function returns 0.
+
+ If \a ok is not null, failure is reported by setting *ok to false, and
+ success by setting *ok to true.
+
+ This function ignores leading and trailing whitespace.
+
+ \sa toShort(), toString()
+
+ \since 5.10
+*/
+
+ushort QLocale::toUShort(QStringView s, bool *ok) const
+{
+ return toIntegral_helper<ushort>(d, s, ok);
+}
+
+/*!
+ Returns the int represented by the localized string \a s.
+
+ If the conversion fails, the function returns 0.
+
+ If \a ok is not null, failure is reported by setting *ok to false, and
+ success by setting *ok to true.
+
+ This function ignores leading and trailing whitespace.
+
+ \sa toUInt(), toString()
+
+ \since 5.10
+*/
+
+int QLocale::toInt(QStringView s, bool *ok) const
+{
+ return toIntegral_helper<int>(d, s, ok);
+}
+
+/*!
+ Returns the unsigned int represented by the localized string \a s.
+
+ If the conversion fails, the function returns 0.
+
+ If \a ok is not null, failure is reported by setting *ok to false, and
+ success by setting *ok to true.
+
+ This function ignores leading and trailing whitespace.
+
+ \sa toInt(), toString()
+
+ \since 5.10
+*/
+
+uint QLocale::toUInt(QStringView s, bool *ok) const
+{
+ return toIntegral_helper<uint>(d, s, ok);
+}
+
+/*!
+ Returns the long long int represented by the localized string \a s.
+
+ If the conversion fails, the function returns 0.
+
+ If \a ok is not null, failure is reported by setting *ok to false, and
+ success by setting *ok to true.
+
+ This function ignores leading and trailing whitespace.
+
+ \sa toInt(), toULongLong(), toDouble(), toString()
+
+ \since 5.10
+*/
+
+
+qlonglong QLocale::toLongLong(QStringView s, bool *ok) const
+{
+ return toIntegral_helper<qlonglong>(d, s, ok);
}
+/*!
+ Returns the unsigned long long int represented by the localized
+ string \a s.
+
+ If the conversion fails, the function returns 0.
+
+ If \a ok is not null, failure is reported by setting *ok to false, and
+ success by setting *ok to true.
+
+ This function ignores leading and trailing whitespace.
+
+ \sa toLongLong(), toInt(), toDouble(), toString()
+
+ \since 5.10
+*/
+
+qulonglong QLocale::toULongLong(QStringView s, bool *ok) const
+{
+ return toIntegral_helper<qulonglong>(d, s, ok);
+}
+
+/*!
+ Returns the float represented by the localized string \a s, or 0.0
+ if the conversion failed.
+
+ If \a ok is not null, reports failure by setting
+ *ok to false and success by setting *ok to true.
+
+ This function ignores leading and trailing whitespace.
+
+ \sa toDouble(), toInt(), toString()
+
+ \since 5.10
+*/
+
+float QLocale::toFloat(QStringView s, bool *ok) const
+{
+ return QLocaleData::convertDoubleToFloat(toDouble(s, ok), ok);
+}
+
+/*!
+ Returns the double represented by the localized string \a s, or
+ 0.0 if the conversion failed.
+
+ If \a ok is not null, reports failure by setting
+ *ok to false and success by setting *ok to true.
+
+ Unlike QString::toDouble(), this function does not fall back to
+ the "C" locale if the string cannot be interpreted in this
+ locale.
+
+ \snippet code/src_corelib_tools_qlocale.cpp 3-qstringview
+
+ Notice that the last conversion returns 1234.0, because '.' is the
+ thousands group separator in the German locale.
+
+ This function ignores leading and trailing whitespace.
+
+ \sa toFloat(), toInt(), toString()
+
+ \since 5.10
+*/
+
+double QLocale::toDouble(QStringView s, bool *ok) const
+{
+ return d->m_data->stringToDouble(s, ok, d->m_numberOptions);
+}
/*!
Returns a localized string representation of \a i.
@@ -1564,6 +1743,7 @@ QString QLocale::toString(qulonglong i) const
return d->m_data->unsLongLongToString(i, -1, 10, -1, flags);
}
+#if QT_STRINGVIEW_LEVEL < 2
/*!
Returns a localized string representation of the given \a date in the
specified \a format.
@@ -1574,6 +1754,19 @@ QString QLocale::toString(const QDate &date, const QString &format) const
{
return d->dateTimeToString(format, QDateTime(), date, QTime(), this);
}
+#endif
+
+/*!
+ \since 5.10
+
+ Returns a localized string representation of the given \a date in the
+ specified \a format.
+ If \a format is an empty string, an empty string is returned.
+*/
+QString QLocale::toString(const QDate &date, QStringView format) const
+{
+ return d->dateTimeToString(format, QDateTime(), date, QTime(), this);
+}
/*!
Returns a localized string representation of the given \a date according
@@ -1599,7 +1792,7 @@ QString QLocale::toString(const QDate &date, FormatType format) const
return toString(date, format_str);
}
-static bool timeFormatContainsAP(const QString &format)
+static bool timeFormatContainsAP(QStringView format)
{
int i = 0;
while (i < format.size()) {
@@ -1616,6 +1809,7 @@ static bool timeFormatContainsAP(const QString &format)
return false;
}
+#if QT_STRINGVIEW_LEVEL < 2
/*!
Returns a localized string representation of the given \a time according
to the specified \a format.
@@ -1625,7 +1819,21 @@ QString QLocale::toString(const QTime &time, const QString &format) const
{
return d->dateTimeToString(format, QDateTime(), QDate(), time, this);
}
+#endif
+
+/*!
+ \since 5.10
+
+ Returns a localized string representation of the given \a time according
+ to the specified \a format.
+ If \a format is an empty string, an empty string is returned.
+*/
+QString QLocale::toString(const QTime &time, QStringView format) const
+{
+ return d->dateTimeToString(format, QDateTime(), QDate(), time, this);
+}
+#if QT_STRINGVIEW_LEVEL < 2
/*!
\since 4.4
@@ -1638,6 +1846,19 @@ QString QLocale::toString(const QDateTime &dateTime, const QString &format) cons
{
return d->dateTimeToString(format, dateTime, QDate(), QTime(), this);
}
+#endif
+
+/*!
+ \since 5.10
+
+ Returns a localized string representation of the given \a dateTime according
+ to the specified \a format.
+ If \a format is an empty string, an empty string is returned.
+*/
+QString QLocale::toString(const QDateTime &dateTime, QStringView format) const
+{
+ return d->dateTimeToString(format, dateTime, QDate(), QTime(), this);
+}
/*!
\since 4.4
@@ -2549,7 +2770,7 @@ QString QLocale::pmText() const
}
-QString QLocalePrivate::dateTimeToString(const QString &format, const QDateTime &datetime,
+QString QLocalePrivate::dateTimeToString(QStringView format, const QDateTime &datetime,
const QDate &dateOnly, const QTime &timeOnly,
const QLocale *q) const
{
@@ -2582,7 +2803,7 @@ QString QLocalePrivate::dateTimeToString(const QString &format, const QDateTime
}
const QChar c = format.at(i);
- int repeat = qt_repeatCount(format, i);
+ int repeat = qt_repeatCount(format.mid(i));
bool used = false;
if (formatDate) {
switch (c.unicode()) {
@@ -2717,7 +2938,7 @@ QString QLocalePrivate::dateTimeToString(const QString &format, const QDateTime
case 'a':
used = true;
- if (i + 1 < format.length() && format.at(i + 1).unicode() == 'p') {
+ if (i + 1 < format.size() && format.at(i + 1).unicode() == 'p') {
repeat = 2;
} else {
repeat = 1;
@@ -2727,7 +2948,7 @@ QString QLocalePrivate::dateTimeToString(const QString &format, const QDateTime
case 'A':
used = true;
- if (i + 1 < format.length() && format.at(i + 1).unicode() == 'P') {
+ if (i + 1 < format.size() && format.at(i + 1).unicode() == 'P') {
repeat = 2;
} else {
repeat = 1;
@@ -3076,12 +3297,12 @@ QString QLocaleData::unsLongLongToString(const QChar zero, const QChar group,
number. We can't detect junk here, since we don't even know the base
of the number.
*/
-bool QLocaleData::numberToCLocale(const QChar *str, int len, QLocale::NumberOptions number_options,
+bool QLocaleData::numberToCLocale(QStringView s, QLocale::NumberOptions number_options,
CharBuff *result) const
{
- const QChar *uc = str;
- int l = len;
- int idx = 0;
+ const QChar *uc = s.data();
+ auto l = s.size();
+ decltype(l) idx = 0;
// Skip whitespace
while (idx < l && uc[idx].isSpace())
@@ -3199,7 +3420,7 @@ bool QLocaleData::numberToCLocale(const QChar *str, int len, QLocale::NumberOpti
return idx == l;
}
-bool QLocaleData::validateChars(const QString &str, NumberMode numMode, QByteArray *buff,
+bool QLocaleData::validateChars(QStringView str, NumberMode numMode, QByteArray *buff,
int decDigits, QLocale::NumberOptions number_options) const
{
buff->clear();
@@ -3213,7 +3434,7 @@ bool QLocaleData::validateChars(const QString &str, NumberMode numMode, QByteArr
bool dec = false;
int decDigitCnt = 0;
- for (int i = 0; i < str.length(); ++i) {
+ for (qssize_t i = 0; i < str.size(); ++i) {
char c = digitToCLocale(str.at(i));
if (c >= '0' && c <= '9') {
@@ -3300,11 +3521,11 @@ bool QLocaleData::validateChars(const QString &str, NumberMode numMode, QByteArr
return true;
}
-double QLocaleData::stringToDouble(const QChar *begin, int len, bool *ok,
+double QLocaleData::stringToDouble(QStringView str, bool *ok,
QLocale::NumberOptions number_options) const
{
CharBuff buff;
- if (!numberToCLocale(begin, len, number_options, &buff)) {
+ if (!numberToCLocale(str, number_options, &buff)) {
if (ok != 0)
*ok = false;
return 0.0;
@@ -3317,11 +3538,11 @@ double QLocaleData::stringToDouble(const QChar *begin, int len, bool *ok,
return d;
}
-qlonglong QLocaleData::stringToLongLong(const QChar *begin, int len, int base, bool *ok,
+qlonglong QLocaleData::stringToLongLong(QStringView str, int base, bool *ok,
QLocale::NumberOptions number_options) const
{
CharBuff buff;
- if (!numberToCLocale(begin, len, number_options, &buff)) {
+ if (!numberToCLocale(str, number_options, &buff)) {
if (ok != 0)
*ok = false;
return 0;
@@ -3330,11 +3551,11 @@ qlonglong QLocaleData::stringToLongLong(const QChar *begin, int len, int base, b
return bytearrayToLongLong(buff.constData(), base, ok);
}
-qulonglong QLocaleData::stringToUnsLongLong(const QChar *begin, int len, int base, bool *ok,
+qulonglong QLocaleData::stringToUnsLongLong(QStringView str, int base, bool *ok,
QLocale::NumberOptions number_options) const
{
CharBuff buff;
- if (!numberToCLocale(begin, len, number_options, &buff)) {
+ if (!numberToCLocale(str, number_options, &buff)) {
if (ok != 0)
*ok = false;
return 0;