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#ifndef QLOCALE_P_H
#define QLOCALE_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists for the convenience
// of internal files. This header file may change from version to version
// without notice, or even be removed.
//
// We mean it.
//
#include <QtCore/private/qglobal_p.h>
#include "QtCore/qstring.h"
#include "QtCore/qvarlengtharray.h"
#include "QtCore/qvariant.h"
#include "QtCore/qnumeric.h"
#include "qlocale.h"
#include <limits>
#include <cmath>
QT_BEGIN_NAMESPACE
#ifndef QT_NO_SYSTEMLOCALE
class Q_CORE_EXPORT QSystemLocale
{
public:
QSystemLocale();
virtual ~QSystemLocale();
struct CurrencyToStringArgument
{
CurrencyToStringArgument() { }
CurrencyToStringArgument(const QVariant &v, const QString &s)
: value(v), symbol(s) { }
QVariant value;
QString symbol;
};
enum QueryType {
LanguageId, // uint
CountryId, // uint
DecimalPoint, // QString
GroupSeparator, // QString
ZeroDigit, // QString
NegativeSign, // QString
DateFormatLong, // QString
DateFormatShort, // QString
TimeFormatLong, // QString
TimeFormatShort, // QString
DayNameLong, // QString, in: int
DayNameShort, // QString, in: int
MonthNameLong, // QString, in: int
MonthNameShort, // QString, in: int
DateToStringLong, // QString, in: QDate
DateToStringShort, // QString in: QDate
TimeToStringLong, // QString in: QTime
TimeToStringShort, // QString in: QTime
DateTimeFormatLong, // QString
DateTimeFormatShort, // QString
DateTimeToStringLong, // QString in: QDateTime
DateTimeToStringShort, // QString in: QDateTime
MeasurementSystem, // uint
PositiveSign, // QString
AMText, // QString
PMText, // QString
FirstDayOfWeek, // Qt::DayOfWeek
Weekdays, // QList<Qt::DayOfWeek>
CurrencySymbol, // QString in: CurrencyToStringArgument
CurrencyToString, // QString in: qlonglong, qulonglong or double
UILanguages, // QStringList
StringToStandardQuotation, // QString in: QStringRef to quote
StringToAlternateQuotation, // QString in: QStringRef to quote
ScriptId, // uint
ListToSeparatedString, // QString
LocaleChanged, // system locale changed
NativeLanguageName, // QString
NativeCountryName, // QString
StandaloneMonthNameLong, // QString, in: int
StandaloneMonthNameShort // QString, in: int
};
virtual QVariant query(QueryType type, QVariant in) const;
virtual QLocale fallbackUiLocale() const;
private:
QSystemLocale(bool);
friend class QSystemLocaleSingleton;
};
Q_DECLARE_TYPEINFO(QSystemLocale::QueryType, Q_PRIMITIVE_TYPE);
Q_DECLARE_TYPEINFO(QSystemLocale::CurrencyToStringArgument, Q_MOVABLE_TYPE);
#endif
#if QT_CONFIG(icu)
namespace QIcu {
QString toUpper(const QByteArray &localeId, const QString &str, bool *ok);
QString toLower(const QByteArray &localeId, const QString &str, bool *ok);
}
#endif
struct QLocaleId
{
// bypass constructors
static inline QLocaleId fromIds(ushort language, ushort script, ushort country)
{
const QLocaleId localeId = { language, script, country };
return localeId;
}
inline bool operator==(QLocaleId other) const
{ return language_id == other.language_id && script_id == other.script_id && country_id == other.country_id; }
inline bool operator!=(QLocaleId other) const
{ return !operator==(other); }
QLocaleId withLikelySubtagsAdded() const;
QLocaleId withLikelySubtagsRemoved() const;
QByteArray name(char separator = '-') const;
ushort language_id, script_id, country_id;
};
Q_DECLARE_TYPEINFO(QLocaleId, Q_PRIMITIVE_TYPE);
struct QLocaleData
{
public:
static const QLocaleData *findLocaleData(QLocale::Language language,
QLocale::Script script,
QLocale::Country country);
static const QLocaleData *c();
// Maximum number of significant digits needed to represent a double.
// We cannot use std::numeric_limits here without constexpr.
static const int DoubleMantissaBits = 53;
static const int Log10_2_100000 = 30103; // log10(2) * 100000
// same as C++11 std::numeric_limits<T>::max_digits10
static const int DoubleMaxSignificant = (DoubleMantissaBits * Log10_2_100000) / 100000 + 2;
// Maximum number of digits before decimal point to represent a double
// Same as std::numeric_limits<double>::max_exponent10 + 1
static const int DoubleMaxDigitsBeforeDecimal = 309;
enum DoubleForm {
DFExponent = 0,
DFDecimal,
DFSignificantDigits,
_DFMax = DFSignificantDigits
};
enum Flags {
NoFlags = 0,
AddTrailingZeroes = 0x01,
ZeroPadded = 0x02,
LeftAdjusted = 0x04,
BlankBeforePositive = 0x08,
AlwaysShowSign = 0x10,
ThousandsGroup = 0x20,
CapitalEorX = 0x40,
ShowBase = 0x80,
UppercaseBase = 0x100,
ZeroPadExponent = 0x200,
ForcePoint = 0x400
};
enum NumberMode { IntegerMode, DoubleStandardMode, DoubleScientificMode };
typedef QVarLengthArray<char, 256> CharBuff;
static QString doubleToString(const QChar zero, const QChar plus,
const QChar minus, const QChar exponent,
const QChar group, const QChar decimal,
double d, int precision,
DoubleForm form,
int width, unsigned flags);
static QString longLongToString(const QChar zero, const QChar group,
const QChar plus, const QChar minus,
qint64 l, int precision, int base,
int width, unsigned flags);
static QString unsLongLongToString(const QChar zero, const QChar group,
const QChar plus,
quint64 l, int precision,
int base, int width,
unsigned flags);
QString doubleToString(double d,
int precision = -1,
DoubleForm form = DFSignificantDigits,
int width = -1,
unsigned flags = NoFlags) const;
QString longLongToString(qint64 l, int precision = -1,
int base = 10,
int width = -1,
unsigned flags = NoFlags) const;
QString unsLongLongToString(quint64 l, int precision = -1,
int base = 10,
int width = -1,
unsigned flags = NoFlags) const;
// this function is meant to be called with the result of stringToDouble or bytearrayToDouble
static float convertDoubleToFloat(double d, bool *ok)
{
if (qIsInf(d))
return float(d);
if (std::fabs(d) > std::numeric_limits<float>::max()) {
if (ok != 0)
*ok = false;
return 0.0f;
}
return float(d);
}
double stringToDouble(const QChar *begin, int len, bool *ok,
QLocale::NumberOptions number_options) const;
qint64 stringToLongLong(const QChar *begin, int len, int base, bool *ok,
QLocale::NumberOptions number_options) const;
quint64 stringToUnsLongLong(const QChar *begin, int len, int base, bool *ok,
QLocale::NumberOptions number_options) const;
// these functions are used in QIntValidator (QtGui)
Q_CORE_EXPORT static double bytearrayToDouble(const char *num, bool *ok, bool *overflow = 0);
Q_CORE_EXPORT static qint64 bytearrayToLongLong(const char *num, int base, bool *ok, bool *overflow = 0);
Q_CORE_EXPORT static quint64 bytearrayToUnsLongLong(const char *num, int base, bool *ok);
bool numberToCLocale(const QChar *str, int len, QLocale::NumberOptions number_options,
CharBuff *result) const;
inline char digitToCLocale(QChar c) const;
// this function is used in QIntValidator (QtGui)
Q_CORE_EXPORT bool validateChars(
const QString &str, NumberMode numMode, QByteArray *buff, int decDigits = -1,
QLocale::NumberOptions number_options = QLocale::DefaultNumberOptions) const;
public:
quint16 m_language_id, m_script_id, m_country_id;
quint16 m_decimal, m_group, m_list, m_percent, m_zero, m_minus, m_plus, m_exponential;
quint16 m_quotation_start, m_quotation_end;
quint16 m_alternate_quotation_start, m_alternate_quotation_end;
quint16 m_list_pattern_part_start_idx, m_list_pattern_part_start_size;
quint16 m_list_pattern_part_mid_idx, m_list_pattern_part_mid_size;
quint16 m_list_pattern_part_end_idx, m_list_pattern_part_end_size;
quint16 m_list_pattern_part_two_idx, m_list_pattern_part_two_size;
quint16 m_short_date_format_idx, m_short_date_format_size;
quint16 m_long_date_format_idx, m_long_date_format_size;
quint16 m_short_time_format_idx, m_short_time_format_size;
quint16 m_long_time_format_idx, m_long_time_format_size;
quint16 m_standalone_short_month_names_idx, m_standalone_short_month_names_size;
quint16 m_standalone_long_month_names_idx, m_standalone_long_month_names_size;
quint16 m_standalone_narrow_month_names_idx, m_standalone_narrow_month_names_size;
quint16 m_short_month_names_idx, m_short_month_names_size;
quint16 m_long_month_names_idx, m_long_month_names_size;
quint16 m_narrow_month_names_idx, m_narrow_month_names_size;
quint16 m_standalone_short_day_names_idx, m_standalone_short_day_names_size;
quint16 m_standalone_long_day_names_idx, m_standalone_long_day_names_size;
quint16 m_standalone_narrow_day_names_idx, m_standalone_narrow_day_names_size;
quint16 m_short_day_names_idx, m_short_day_names_size;
quint16 m_long_day_names_idx, m_long_day_names_size;
quint16 m_narrow_day_names_idx, m_narrow_day_names_size;
quint16 m_am_idx, m_am_size;
quint16 m_pm_idx, m_pm_size;
char m_currency_iso_code[3];
quint16 m_currency_symbol_idx, m_currency_symbol_size;
quint16 m_currency_display_name_idx, m_currency_display_name_size;
quint8 m_currency_format_idx, m_currency_format_size;
quint8 m_currency_negative_format_idx, m_currency_negative_format_size;
quint16 m_language_endonym_idx, m_language_endonym_size;
quint16 m_country_endonym_idx, m_country_endonym_size;
quint16 m_currency_digits : 2;
quint16 m_currency_rounding : 3;
quint16 m_first_day_of_week : 3;
quint16 m_weekend_start : 3;
quint16 m_weekend_end : 3;
};
class Q_CORE_EXPORT QLocalePrivate
{
public:
static QLocalePrivate *create(
const QLocaleData *data,
QLocale::NumberOptions numberOptions = QLocale::DefaultNumberOptions)
{
QLocalePrivate *retval = new QLocalePrivate;
retval->m_data = data;
retval->ref.store(0);
retval->m_numberOptions = numberOptions;
return retval;
}
static QLocalePrivate *get(QLocale &l) { return l.d; }
static const QLocalePrivate *get(const QLocale &l) { return l.d; }
QChar decimal() const { return QChar(m_data->m_decimal); }
QChar group() const { return QChar(m_data->m_group); }
QChar list() const { return QChar(m_data->m_list); }
QChar percent() const { return QChar(m_data->m_percent); }
QChar zero() const { return QChar(m_data->m_zero); }
QChar plus() const { return QChar(m_data->m_plus); }
QChar minus() const { return QChar(m_data->m_minus); }
QChar exponential() const { return QChar(m_data->m_exponential); }
quint16 languageId() const { return m_data->m_language_id; }
quint16 countryId() const { return m_data->m_country_id; }
QByteArray bcp47Name(char separator = '-') const;
// ### QByteArray::fromRawData would be more optimal
inline QString languageCode() const { return QLocalePrivate::languageToCode(QLocale::Language(m_data->m_language_id)); }
inline QString scriptCode() const { return QLocalePrivate::scriptToCode(QLocale::Script(m_data->m_script_id)); }
inline QString countryCode() const { return QLocalePrivate::countryToCode(QLocale::Country(m_data->m_country_id)); }
static QString languageToCode(QLocale::Language language);
static QString scriptToCode(QLocale::Script script);
static QString countryToCode(QLocale::Country country);
static QLocale::Language codeToLanguage(const QChar *code, int len) Q_DECL_NOTHROW;
static QLocale::Language codeToLanguage(const QString &code) Q_DECL_NOTHROW { return codeToLanguage(code.data(), code.size()); }
static QLocale::Language codeToLanguage(const QStringRef &code) Q_DECL_NOTHROW { return codeToLanguage(code.data(), code.size()); }
static QLocale::Script codeToScript(const QChar *code, int len) Q_DECL_NOTHROW;
static QLocale::Script codeToScript(const QString &code) Q_DECL_NOTHROW { return codeToScript(code.data(), code.size()); }
static QLocale::Script codeToScript(const QStringRef &code) Q_DECL_NOTHROW { return codeToScript(code.data(), code.size()); }
static QLocale::Country codeToCountry(const QChar *code, int len) Q_DECL_NOTHROW;
static QLocale::Country codeToCountry(const QString &code) Q_DECL_NOTHROW { return codeToCountry(code.data(), code.size()); }
static QLocale::Country codeToCountry(const QStringRef &code) Q_DECL_NOTHROW { return codeToCountry(code.data(), code.size()); }
static void getLangAndCountry(const QString &name, QLocale::Language &lang,
QLocale::Script &script, QLocale::Country &cntry);
QLocale::MeasurementSystem measurementSystem() const;
static void updateSystemPrivate();
QString dateTimeToString(const QString &format, const QDateTime &datetime,
const QDate &dateOnly, const QTime &timeOnly,
const QLocale *q) const;
const QLocaleData *m_data;
QBasicAtomicInt ref;
QLocale::NumberOptions m_numberOptions;
};
template <>
inline QLocalePrivate *QSharedDataPointer<QLocalePrivate>::clone()
{
// cannot use QLocalePrivate's copy constructor
// since it is deleted in C++11
return QLocalePrivate::create(d->m_data, d->m_numberOptions);
}
inline char QLocaleData::digitToCLocale(QChar in) const
{
const ushort tenUnicode = m_zero + 10;
if (in.unicode() >= m_zero && in.unicode() < tenUnicode)
return '0' + in.unicode() - m_zero;
if (in.unicode() >= '0' && in.unicode() <= '9')
return in.toLatin1();
if (in == m_plus || in == QLatin1Char('+'))
return '+';
if (in == m_minus || in == QLatin1Char('-') || in == QChar(0x2212))
return '-';
if (in == m_decimal)
return '.';
if (in == m_group)
return ',';
if (in == m_exponential || in == QChar::toUpper(m_exponential))
return 'e';
// In several languages group() is the char 0xA0, which looks like a space.
// People use a regular space instead of it and complain it doesn't work.
if (m_group == 0xA0 && in.unicode() == ' ')
return ',';
return 0;
}
QString qt_readEscapedFormatString(const QString &format, int *idx);
bool qt_splitLocaleName(const QString &name, QString &lang, QString &script, QString &cntry);
int qt_repeatCount(const QString &s, int i);
enum { AsciiSpaceMask = (1u << (' ' - 1)) |
(1u << ('\t' - 1)) | // 9: HT - horizontal tab
(1u << ('\n' - 1)) | // 10: LF - line feed
(1u << ('\v' - 1)) | // 11: VT - vertical tab
(1u << ('\f' - 1)) | // 12: FF - form feed
(1u << ('\r' - 1)) }; // 13: CR - carriage return
Q_DECL_CONSTEXPR inline bool ascii_isspace(uchar c)
{
return c >= 1u && c <= 32u && (AsciiSpaceMask >> uint(c - 1)) & 1u;
}
#if defined(Q_COMPILER_CONSTEXPR)
Q_STATIC_ASSERT(ascii_isspace(' '));
Q_STATIC_ASSERT(ascii_isspace('\t'));
Q_STATIC_ASSERT(ascii_isspace('\n'));
Q_STATIC_ASSERT(ascii_isspace('\v'));
Q_STATIC_ASSERT(ascii_isspace('\f'));
Q_STATIC_ASSERT(ascii_isspace('\r'));
Q_STATIC_ASSERT(!ascii_isspace('\0'));
Q_STATIC_ASSERT(!ascii_isspace('\a'));
Q_STATIC_ASSERT(!ascii_isspace('a'));
Q_STATIC_ASSERT(!ascii_isspace('\177'));
Q_STATIC_ASSERT(!ascii_isspace(uchar('\200')));
Q_STATIC_ASSERT(!ascii_isspace(uchar('\xA0')));
Q_STATIC_ASSERT(!ascii_isspace(uchar('\377')));
#endif
QT_END_NAMESPACE
Q_DECLARE_METATYPE(QStringRef)
Q_DECLARE_METATYPE(QList<Qt::DayOfWeek>)
#ifndef QT_NO_SYSTEMLOCALE
Q_DECLARE_METATYPE(QSystemLocale::CurrencyToStringArgument)
#endif
#endif // QLOCALE_P_H