path: root/src/corelib/tools/qlocale.qdoc

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/*!
    \class QLocale
    \brief The QLocale class converts between numbers and their
    string representations in various languages.

    \reentrant
    \ingroup i18n
    \ingroup string-processing
    \ingroup shared


    QLocale is initialized with a language/country pair in its
    constructor and offers number-to-string and string-to-number
    conversion functions similar to those in QString.

    Example:

    \snippet doc/src/snippets/code/src_corelib_tools_qlocale.cpp 0

    QLocale supports the concept of a default locale, which is
    determined from the system's locale settings at application
    startup. The default locale can be changed by calling the
    static member setDefault(). Setting the default locale has the
    following effects:

    \list
    \i If a QLocale object is constructed with the default constructor,
       it will use the default locale's settings.
    \i QString::toInt(), QString::toDouble(), etc., interpret the
       string according to the default locale. If this fails, it
       falls back on the "C" locale.
    \i QString::arg() uses the default locale to format a number when
       its position specifier in the format string contains an 'L',
       e.g. "%L1".
    \endlist

    The following example illustrates how to use QLocale directly:

    \snippet doc/src/snippets/code/src_corelib_tools_qlocale.cpp 1

    When a language/country pair is specified in the constructor, one
    of three things can happen:

    \list
    \i If the language/country pair is found in the database, it is used.
    \i If the language is found but the country is not, or if the country
       is \c AnyCountry, the language is used with the most
       appropriate available country (for example, Germany for German),
    \i If neither the language nor the country are found, QLocale
       defaults to the default locale (see setDefault()).
    \endlist

    Use language() and country() to determine the actual language and
    country values used.

    An alternative method for constructing a QLocale object is by
    specifying the locale name.

    \snippet doc/src/snippets/code/src_corelib_tools_qlocale.cpp 2

    This constructor converts the locale name to a language/country
    pair; it does not use the system locale database.

    \note For the current keyboard input locale take a look at
    QApplication::keyboardInputLocale().

    QLocale's data is based on Common Locale Data Repository v1.8.1.

    The double-to-string and string-to-double conversion functions are
    covered by the following licenses:

    \legalese
    Copyright (c) 1991 by AT&T.

    Permission to use, copy, modify, and distribute this software for any
    purpose without fee is hereby granted, provided that this entire notice
    is included in all copies of any software which is or includes a copy
    or modification of this software and in all copies of the supporting
    documentation for such software.

    THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
    WARRANTY.  IN PARTICULAR, NEITHER THE AUTHOR NOR AT&T MAKES ANY
    REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
    OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.

    This product includes software developed by the University of
    California, Berkeley and its contributors.

    \sa QString::arg(), QString::toInt(), QString::toDouble(),
    QApplication::keyboardInputLocale()
*/

/*!
    \enum QLocale::Language

    This enumerated type is used to specify a language.

    \value AnyLanguage
    \value C The "C" locale is identical in behavior to English/UnitedStates.
    \value Abkhazian
    \value Afan
    \value Afar
    \value Afrikaans
    \value Albanian
    \value Amharic
    \value Arabic
    \value Armenian
    \value Assamese
    \value Aymara
    \value Azerbaijani
    \value Bashkir
    \value Basque
    \value Bengali
    \value Bhutani
    \value Bihari
    \value Bislama
    \value Bosnian
    \value Breton
    \value Bulgarian
    \value Burmese
    \value Byelorussian
    \value Cambodian
    \value Catalan
    \value Chinese
    \value Cornish
    \value Corsican
    \value Croatian
    \value Czech
    \value Danish
    \value Divehi
    \value Dutch
    \value English
    \value Esperanto
    \value Estonian
    \value Faroese
    \value FijiLanguage
    \value Finnish
    \value French
    \value Frisian
    \value Gaelic
    \value Galician
    \value Georgian
    \value German
    \value Greek
    \value Greenlandic
    \value Guarani
    \value Gujarati
    \value Hausa
    \value Hebrew
    \value Hindi
    \value Hungarian
    \value Icelandic
    \value Indonesian
    \value Interlingua
    \value Interlingue
    \value Inuktitut
    \value Inupiak
    \value Irish
    \value Italian
    \value Japanese
    \value Javanese
    \value Kannada
    \value Kashmiri
    \value Kazakh
    \value Kinyarwanda
    \value Kirghiz
    \value Korean
    \value Kurdish
    \value Kurundi
    \value Laothian
    \value Latin
    \value Latvian
    \value Lingala
    \value Lithuanian
    \value Macedonian
    \value Malagasy
    \value Malay
    \value Malayalam
    \value Maltese
    \value Manx
    \value Maori
    \value Marathi
    \value Moldavian
    \value Mongolian
    \value NauruLanguage
    \value Nepali
    \value Norwegian
    \value NorwegianBokmal
    \value Nynorsk Obsolete, please use NorwegianNynorsk
    \value NorwegianNynorsk
    \value Occitan
    \value Oriya
    \value Pashto
    \value Persian
    \value Polish
    \value Portuguese
    \value Punjabi
    \value Quechua
    \value RhaetoRomance
    \value Romanian
    \value Russian
    \value Samoan
    \value Sangho
    \value Sanskrit
    \value Serbian
    \value SerboCroatian
    \value Sesotho
    \value Setswana
    \value Shona
    \value Sindhi
    \value Singhalese
    \value Siswati
    \value Slovak
    \value Slovenian
    \value Somali
    \value Spanish
    \value Sundanese
    \value Swahili
    \value Swedish
    \value Tagalog
    \value Tajik
    \value Tamil
    \value Tatar
    \value Telugu
    \value Thai
    \value Tibetan
    \value Tigrinya
    \value TongaLanguage
    \value Tsonga
    \value Turkish
    \value Turkmen
    \value Twi
    \value Uigur
    \value Ukrainian
    \value Urdu
    \value Uzbek
    \value Vietnamese
    \value Volapuk
    \value Welsh
    \value Wolof
    \value Xhosa
    \value Yiddish
    \value Yoruba
    \value Zhuang
    \value Zulu
    \value Bosnian
    \value Divehi
    \value Manx
    \value Cornish
    \value Akan
    \value Konkani
    \value Ga
    \value Igbo
    \value Kamba
    \value Syriac
    \value Blin
    \value Geez
    \value Koro
    \value Sidamo
    \value Atsam
    \value Tigre
    \value Jju
    \value Friulian
    \value Venda
    \value Ewe
    \value Walamo
    \value Hawaiian
    \value Tyap
    \value Chewa
    \value Filipino
    \value SwissGerman
    \value SichuanYi
    \value Kpelle
    \value LowGerman
    \value SouthNdebele
    \value NorthernSotho
    \value NorthernSami
    \value Taroko
    \value Gusii
    \value Taita
    \value Fulah
    \value Kikuyu
    \value Samburu
    \value Sena
    \value NorthNdebele
    \value Rombo
    \value Tachelhit
    \value Kabyle
    \value Nyankole
    \value Bena
    \value Vunjo
    \value Bambara
    \value Embu
    \value Cherokee
    \value Morisyen
    \value Makonde
    \value Langi
    \value Ganda
    \value Bemba
    \value Kabuverdianu
    \value Meru
    \value Kalenjin
    \value Nama
    \value Machame
    \value Colognian
    \value Masai
    \value Soga
    \value Luyia
    \value Asu
    \value Teso
    \value Saho
    \value KoyraChiini
    \value Rwa
    \value Luo
    \value Chiga
    \value CentralMoroccoTamazight
    \value KoyraboroSenni
    \value Shambala
    \omitvalue LastLanguage

    \sa language(), languageToString()
*/

/*!
    \enum QLocale::Country

    This enumerated type is used to specify a country.

    \value AnyCountry
    \value Afghanistan
    \value Albania
    \value Algeria
    \value AmericanSamoa
    \value Andorra
    \value Angola
    \value Anguilla
    \value Antarctica
    \value AntiguaAndBarbuda
    \value Argentina
    \value Armenia
    \value Aruba
    \value Australia
    \value Austria
    \value Azerbaijan
    \value Bahamas
    \value Bahrain
    \value Bangladesh
    \value Barbados
    \value Belarus
    \value Belgium
    \value Belize
    \value Benin
    \value Bermuda
    \value Bhutan
    \value Bolivia
    \value BosniaAndHerzegowina
    \value Botswana
    \value BouvetIsland
    \value Brazil
    \value BritishIndianOceanTerritory
    \value BruneiDarussalam
    \value Bulgaria
    \value BurkinaFaso
    \value Burundi
    \value Cambodia
    \value Cameroon
    \value Canada
    \value CapeVerde
    \value CaymanIslands
    \value CentralAfricanRepublic
    \value Chad
    \value Chile
    \value China
    \value ChristmasIsland
    \value CocosIslands
    \value Colombia
    \value Comoros
    \value DemocraticRepublicOfCongo
    \value PeoplesRepublicOfCongo
    \value CookIslands
    \value CostaRica
    \value IvoryCoast
    \value Croatia
    \value Cuba
    \value Cyprus
    \value CzechRepublic
    \value Denmark
    \value Djibouti
    \value Dominica
    \value DominicanRepublic
    \value EastTimor
    \value Ecuador
    \value Egypt
    \value ElSalvador
    \value EquatorialGuinea
    \value Eritrea
    \value Estonia
    \value Ethiopia
    \value FalklandIslands
    \value FaroeIslands
    \value FijiCountry
    \value Finland
    \value France
    \value MetropolitanFrance
    \value FrenchGuiana
    \value FrenchPolynesia
    \value FrenchSouthernTerritories
    \value Gabon
    \value Gambia
    \value Georgia
    \value Germany
    \value Ghana
    \value Gibraltar
    \value Greece
    \value Greenland
    \value Grenada
    \value Guadeloupe
    \value Guam
    \value Guatemala
    \value Guinea
    \value GuineaBissau
    \value Guyana
    \value Haiti
    \value HeardAndMcDonaldIslands
    \value Honduras
    \value HongKong
    \value Hungary
    \value Iceland
    \value India
    \value Indonesia
    \value Iran
    \value Iraq
    \value Ireland
    \value Israel
    \value Italy
    \value Jamaica
    \value Japan
    \value Jordan
    \value Kazakhstan
    \value Kenya
    \value Kiribati
    \value DemocraticRepublicOfKorea
    \value RepublicOfKorea
    \value Kuwait
    \value Kyrgyzstan
    \value Lao
    \value Latvia
    \value Lebanon
    \value Lesotho
    \value Liberia
    \value LibyanArabJamahiriya
    \value Liechtenstein
    \value Lithuania
    \value Luxembourg
    \value Macau
    \value Macedonia
    \value Madagascar
    \value Malawi
    \value Malaysia
    \value Maldives
    \value Mali
    \value Malta
    \value MarshallIslands
    \value Martinique
    \value Mauritania
    \value Mauritius
    \value Mayotte
    \value Mexico
    \value Micronesia
    \value Moldova
    \value Monaco
    \value Mongolia
    \value Montserrat
    \value Morocco
    \value Mozambique
    \value Myanmar
    \value Namibia
    \value NauruCountry
    \value Nepal
    \value Netherlands
    \value NetherlandsAntilles
    \value NewCaledonia
    \value NewZealand
    \value Nicaragua
    \value Niger
    \value Nigeria
    \value Niue
    \value NorfolkIsland
    \value NorthernMarianaIslands
    \value Norway
    \value Oman
    \value Pakistan
    \value Palau
    \value PalestinianTerritory
    \value Panama
    \value PapuaNewGuinea
    \value Paraguay
    \value Peru
    \value Philippines
    \value Pitcairn
    \value Poland
    \value Portugal
    \value PuertoRico
    \value Qatar
    \value Reunion
    \value Romania
    \value RussianFederation
    \value Rwanda
    \value SaintKittsAndNevis
    \value StLucia
    \value StVincentAndTheGrenadines
    \value Samoa
    \value SanMarino
    \value SaoTomeAndPrincipe
    \value SaudiArabia
    \value Senegal
    \value SerbiaAndMontenegro
    \value Seychelles
    \value SierraLeone
    \value Singapore
    \value Slovakia
    \value Slovenia
    \value SolomonIslands
    \value Somalia
    \value SouthAfrica
    \value SouthGeorgiaAndTheSouthSandwichIslands
    \value Spain
    \value SriLanka
    \value StHelena
    \value StPierreAndMiquelon
    \value Sudan
    \value Suriname
    \value SvalbardAndJanMayenIslands
    \value Swaziland
    \value Sweden
    \value Switzerland
    \value SyrianArabRepublic
    \value Taiwan
    \value Tajikistan
    \value Tanzania
    \value Thailand
    \value Togo
    \value Tokelau
    \value TongaCountry
    \value TrinidadAndTobago
    \value Tunisia
    \value Turkey
    \value Turkmenistan
    \value TurksAndCaicosIslands
    \value Tuvalu
    \value Uganda
    \value Ukraine
    \value UnitedArabEmirates
    \value UnitedKingdom
    \value UnitedStates
    \value UnitedStatesMinorOutlyingIslands
    \value Uruguay
    \value Uzbekistan
    \value Vanuatu
    \value VaticanCityState
    \value Venezuela
    \value VietNam
    \value BritishVirginIslands
    \value USVirginIslands
    \value WallisAndFutunaIslands
    \value WesternSahara
    \value Yemen
    \value Yugoslavia
    \value Zambia
    \value Zimbabwe
    \value SerbiaAndMontenegro
    \value Montenegro
    \value Serbia
    \value SaintBarthelemy
    \value SaintMartin
    \value LatinAmericaAndTheCaribbean
    \omitvalue LastCountry

    \sa country(), countryToString()
*/

/*!
    \enum QLocale::Script

    This enumerated type is used to specify a script.

    \value AnyScript
    \value ArabicScript
    \value CyrillicScript
    \value DeseretScript
    \value GurmukhiScript
    \value SimplifiedHanScript same as SimplifiedChineseScript
    \value SimplifiedChineseScript same as SimplifiedHanScript
    \value TraditionalHanScript same as TraditionalChineseScript
    \value TraditionalChineseScript same as TraditionalHanScript
    \value LatinScript
    \value MongolianScript
    \value TifinaghScript
    \omitvalue LastScript

    \sa script(), scriptToString(), languageToString()
*/

/*!
    \enum QLocale::FormatType

    This enum describes the types of format that can be used when
    converting QDate and QTime objects to strings.

    \value LongFormat The long version of day and month names; for
    example, returning "January" as a month name.

    \value ShortFormat The short version of day and month names; for
    example, returning "Jan" as a month name.

    \value NarrowFormat A special version of day and month names for
    use when space is limited; for example, returning "J" as a month
    name. Note that the narrow format might contain the same text for
    different months and days or it can even be an empty string if the
    locale doesn't support narrow names, so you should avoid using it
    for date formatting. Also, for the system locale this format is
    the same as ShortFormat.
*/

/*!
    \enum QLocale::NumberOption

    This enum defines a set of options for number-to-string and string-to-number
    conversions. They can be retrieved with numberOptions() and set with
    setNumberOptions().

    \value OmitGroupSeparator If this option is set, the number-to-string functions
            will not insert group separators in their return values. The default
            is to insert group separators.
    \value RejectGroupSeparator If this option is set, the string-to-number functions
            will fail if they encounter group separators in their input. The default
            is to accept numbers containing correctly placed group separators.

    \sa setNumberOptions() numberOptions()
*/

/*!
    \enum QLocale::MeasurementSystem

    This enum defines which units are used for measurement.

    \value MetricSystem This value indicates metric units, such as meters,
            centimeters and millimeters.
    \value ImperialSystem This value indicates imperial units, such as inches and
            miles. There are several distinct imperial systems in the world; this
            value stands for the official United States imperial units.

    \since 4.4
*/


/*!
    \fn bool QLocale::operator==(const QLocale &other) const

    Returns true if the QLocale object is the same as the \a other
    locale specified; otherwise returns false.
*/

/*!
    \fn bool QLocale::operator!=(const QLocale &other) const

    Returns true if the QLocale object is not the same as the \a other
    locale specified; otherwise returns false.
*/

/*!
    \enum QLocale::QuotationStyle

    This enum defines a set of possible styles for locale specific quotation.

    \value StandardQuotation If this option is set, the standard quotation marks
            will be used to quote strings.
    \value AlternateQuotation If this option is set, the alternate quotation marks
            will be used to quote strings.

    \since 4.8

    \sa quoteString()
*/

/*!
    \class QSystemLocale
    \brief The QSystemLocale class can be used to finetune the system locale
    of the user.
    \since 4.2

    \ingroup i18n

    \warning This class is only useful in very rare cases. Usually QLocale offers
    all the functionality required for application development.

    QSystemLocale allows to override the values provided by the system
    locale (QLocale::system()).

    \sa QLocale
*/

/*!
  \enum QSystemLocale::QueryType

  Specifies the type of information queried by query(). For each value
  the type of information to return from the query() method is listed.

  \value LanguageId a uint specifying the language.
  \value ScriptId a uint specifying the script.
  \value CountryId a uint specifying the country.
  \value DecimalPoint a QString specifying the decimal point.
  \value GroupSeparator a QString specifying the group separator.
  \value ZeroDigit a QString specifying the zero digit.
  \value NegativeSign a QString specifying the minus sign.
  \value PositiveSign a QString specifying the plus sign.
  \value DateFormatLong a QString specifying the long date format
  \value DateFormatShort a QString specifying the short date format
  \value TimeFormatLong a QString specifying the long time format
  \value TimeFormatShort a QString specifying the short time format
  \value DayNameLong a QString specifying the name of a weekday. the in variant contains an integer between 1 and 7 (Monday - Sunday)
  \value DayNameShort a QString specifying the short name of a weekday. the in variant contains an integer between 1 and 7 (Monday - Sunday)
  \value MonthNameLong a QString specifying the name of a month. the in variant contains an integer between 1 and 12
  \value MonthNameShort a QString specifying the short name of a month. the in variant contains an integer between 1 and 12
  \value DateToStringLong converts the QDate stored in the in variant to a QString using the long date format
  \value DateToStringShort converts the QDate stored in the in variant to a QString using the short date format
  \value TimeToStringLong converts the QTime stored in the in variant to a QString using the long time format
  \value TimeToStringShort converts the QTime stored in the in variant to a QString using the short time format
  \value DateTimeFormatLong a QString specifying the long date time format
  \value DateTimeFormatShort a QString specifying the short date time format
  \value DateTimeToStringLong converts the QDateTime in the in variant to a QString using the long datetime format
  \value DateTimeToStringShort converts the QDateTime in the in variant to a QString using the short datetime format
  \value MeasurementSystem a QLocale::MeasurementSystem enum specifying the measurement system
  \value AMText a string that represents the system AM designator associated with a 12-hour clock.
  \value PMText a string that represents the system PM designator associated with a 12-hour clock.
  \value FirstDayOfWeek a Qt::DayOfWeek enum specifiying the first day of the week
  \value CurrencySymbol a string that represents a currency in a format QLocale::CurrencyFormat.
  \value CurrencyToString a localized string representation of a number with a currency symbol. Converts a QSystemLocale::CurrencyToStringArgument stored in the in variant to a QString.
  \value UILanguages a list of strings representing locale names that could be used for UI translation.
  \value StringToStandardQuotation a QString containing a quoted version of the string ref stored in the in variant using standard quotes.
  \value StringToAlternateQuotation a QString containing a quoted version of the string ref stored in the in variant using alternate quotes.
  \value Weekdays a QList<Qt::DayOfWeek> specifying the regular weekdays
  \value LocaleChanged this type is queried whenever the system locale is changed.
  \value ListToSeparatedString a string that represents a join of a given QStringList with a locale-defined separator.
  \value NativeLanguageName a string that represents the name of the native language.
  \value NativeCountryName a string that represents the name of the native country.
*/

/*!
    \fn QLocale QSystemLocale::fallbackLocale() const

    \since 4.6
    Returns the fallback locale obtained from the system.
*/

/*!
    \fn QVariant QSystemLocale::query(QueryType type, QVariant in = QVariant()) const

    Generic query method for locale data. Provides indirection.
    Denotes the \a type of the query
    with \a in as input data depending on the query.

    \sa QSystemLocale::QueryType
*/

/*!
    \class QSystemLocale::CurrencyToStringArgument

    A helper class that provides arguments for the QSystemLocale::query()
    function with query type QSystemLocale::CurrencyToString.

    \sa QSystemLocale::QueryType
    \since 4.8
*/

/*!
    \fn QSystemLocale::CurrencyToStringArgument::CurrencyToStringArgument()
    \internal
*/
/*!
    \variable QSystemLocale::CurrencyToStringArgument::value

    An input value that should be converted to its string representation.
    Contains one of QVariant::LongLong, QVariant::ULongLong or QVariant::Double
    types.
*/
/*!
    \variable QSystemLocale::CurrencyToStringArgument::symbol

    An optional argument containing a currency symbol to be used in the
    currency string.
*/


/*!
\fn QString QLocale::toString(short i) const

\overload

\sa toShort()
*/

/*!
\fn QString QLocale::toString(ushort i) const

\overload

\sa toUShort()
*/

/*!
\fn QString QLocale::toString(int i) const

\overload

\sa toInt()
*/

/*!
\fn QString QLocale::toString(uint i) const

\overload

\sa toUInt()
*/

/*
\fn QString QLocale::toString(long i) const

\overload

\sa  toLong()
*/

/*
\fn QString QLocale::toString(ulong i) const

\overload

\sa toULong()
*/

/*!
\fn QString QLocale::toString(float i, char f = 'g', int prec = 6) const

\overload

\a f and \a prec have the same meaning as in QString::number(double, char, int).

\sa toDouble()
*/

/*!
    \fn QString QLocale::toCurrencyString(short value, const QString &symbol) const
    \since 4.8
    \overload
*/

/*!
    \fn QString QLocale::toCurrencyString(ushort value, const QString &symbol) const
    \since 4.8
    \overload
*/

/*!
    \fn QString QLocale::toCurrencyString(int value, const QString &symbol) const
    \since 4.8
    \overload
*/

/*!
    \fn QString QLocale::toCurrencyString(uint value, const QString &symbol) const
    \since 4.8
    \overload
*/
/*!
    \fn QString QLocale::toCurrencyString(float value, const QString &symbol) const
    \since 4.8
    \overload
*/