uloc.h

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

 * Allow user to select whether she wants information on 
 * requested, valid or actual locale.
 * For example, a collator for "en_US_CALIFORNIA" was
 * requested. In the current state of ICU (2.0), 
 * the requested locale is "en_US_CALIFORNIA",
 * the valid locale is "en_US" (most specific locale supported by ICU)
 * and the actual locale is "root" (the collation data comes unmodified 
 * from the UCA)
 * The locale is considered supported by ICU if there is a core ICU bundle 
 * for that locale (although it may be empty).
 * @stable ICU 2.1
 */
typedef enum {
  /** This is locale the data actually comes from 
   * @stable ICU 2.1
   */
  ULOC_ACTUAL_LOCALE    = 0,
  /** This is the most specific locale supported by ICU 
   * @stable ICU 2.1
   */
  ULOC_VALID_LOCALE    = 1,

#ifndef U_HIDE_DEPRECATED_API
  /** This is the requested locale
   *  @deprecated ICU 2.8 
   */
  ULOC_REQUESTED_LOCALE = 2,
#endif /* U_HIDE_DEPRECATED_API */

  ULOC_DATA_LOCALE_TYPE_LIMIT
} ULocDataLocaleType ;


/**
 * Gets ICU's default locale.  
 * The returned string is a snapshot in time, and will remain valid
 *   and unchanged even when uloc_setDefault() is called.
 *   The returned storage is owned by ICU, and must not be altered or deleted
 *   by the caller.
 *  
 * @return the ICU default locale
 * @system
 * @stable ICU 2.0
 */
U_STABLE const char* U_EXPORT2
uloc_getDefault(void);

/**
 * Sets ICU's default locale.  
 *    By default (without calling this function), ICU's default locale will be based
 *    on information obtained from the underlying system environment.
 *    <p>
 *    Changes to ICU's default locale do not propagate back to the
 *    system environment.
 *    <p>
 *    Changes to ICU's default locale to not affect any ICU services that
 *    may already be open based on the previous default locale value.
 *
 * @param localeID the new ICU default locale. A value of NULL will try to get
 *                 the system's default locale.
 * @param status the error information if the setting of default locale fails
 * @system
 * @stable ICU 2.0
 */
U_STABLE void U_EXPORT2
uloc_setDefault(const char* localeID,
        UErrorCode*       status);

/**
 * Gets the language code for the specified locale.
 *
 * @param localeID the locale to get the ISO language code with
 * @param language the language code for localeID
 * @param languageCapacity the size of the language buffer to store the  
 * language code with
 * @param err error information if retrieving the language code failed
 * @return the actual buffer size needed for the language code.  If it's greater 
 * than languageCapacity, the returned language code will be truncated.  
 * @stable ICU 2.0
 */
U_STABLE int32_t U_EXPORT2
uloc_getLanguage(const char*    localeID,
         char* language,
         int32_t languageCapacity,
         UErrorCode* err);

/**
 * Gets the script code for the specified locale.
 *
 * @param localeID the locale to get the ISO language code with
 * @param script the language code for localeID
 * @param scriptCapacity the size of the language buffer to store the  
 * language code with
 * @param err error information if retrieving the language code failed
 * @return the actual buffer size needed for the language code.  If it's greater 
 * than scriptCapacity, the returned language code will be truncated.  
 * @draft ICU 2.8
 */
U_DRAFT int32_t U_EXPORT2
uloc_getScript(const char*    localeID,
         char* script,
         int32_t scriptCapacity,
         UErrorCode* err);

/**
 * Gets the  country code for the specified locale.
 *
 * @param localeID the locale to get the country code with
 * @param country the country code for localeID
 * @param countryCapacity the size of the country buffer to store the  
 * country code with
 * @param err error information if retrieving the country code failed
 * @return the actual buffer size needed for the country code.  If it's greater 
 * than countryCapacity, the returned country code will be truncated.  
 * @stable ICU 2.0
 */
U_DRAFT int32_t U_EXPORT2
uloc_getCountry(const char*    localeID,
        char* country,
        int32_t countryCapacity,
        UErrorCode* err);

/**
 * Gets the variant code for the specified locale.
 *
 * @param localeID the locale to get the variant code with
 * @param variant the variant code for localeID
 * @param variantCapacity the size of the variant buffer to store the 
 * variant code with
 * @param err error information if retrieving the variant code failed
 * @return the actual buffer size needed for the variant code.  If it's greater 
 * than variantCapacity, the returned variant code will be truncated.  
 * @stable ICU 2.0
 */
U_STABLE int32_t U_EXPORT2
uloc_getVariant(const char*    localeID,
        char* variant,
        int32_t variantCapacity,
        UErrorCode* err);


/**
 * Gets the full name for the specified locale.
 * Note: This has the effect of 'canonicalizing' the ICU locale ID to
 * a certain extent. Upper and lower case are set as needed.
 * It does NOT map aliased names in any way.
 * See the top of this header file.
 * This API supports preflighting.
 *
 * @param localeID the locale to get the full name with
 * @param name fill in buffer for the name without keywords.
 * @param nameCapacity capacity of the fill in buffer.
 * @param err error information if retrieving the full name failed
 * @return the actual buffer size needed for the full name.  If it's greater 
 * than nameCapacity, the returned full name will be truncated.  
 * @stable ICU 2.0
 */
U_STABLE int32_t U_EXPORT2
uloc_getName(const char*    localeID,
         char* name,
         int32_t nameCapacity,
         UErrorCode* err);

/**
 * Gets the full name for the specified locale.
 * Note: This has the effect of 'canonicalizing' the string to
 * a certain extent. Upper and lower case are set as needed,
 * and if the components were in 'POSIX' format they are changed to
 * ICU format.  It does NOT map aliased names in any way.
 * See the top of this header file.
 *
 * @param localeID the locale to get the full name with
 * @param name the full name for localeID
 * @param nameCapacity the size of the name buffer to store the 
 * full name with
 * @param err error information if retrieving the full name failed
 * @return the actual buffer size needed for the full name.  If it's greater 
 * than nameCapacity, the returned full name will be truncated.  
 * @draft ICU 2.8
 */
U_DRAFT int32_t U_EXPORT2
uloc_canonicalize(const char*    localeID,
         char* name,
         int32_t nameCapacity,
         UErrorCode* err);

/**
 * Gets the ISO language code for the specified locale.
 *
 * @param localeID the locale to get the ISO language code with
 * @return language the ISO language code for localeID
 * @stable ICU 2.0
 */
U_STABLE const char* U_EXPORT2
uloc_getISO3Language(const char* localeID);


/**
 * Gets the ISO country code for the specified locale.
 *
 * @param localeID the locale to get the ISO country code with
 * @return country the ISO country code for localeID
 * @stable ICU 2.0
 */
U_STABLE const char* U_EXPORT2
uloc_getISO3Country(const char* localeID);

/**
 * Gets the Win32 LCID value for the specified locale.
 * If the ICU locale is not recognized by Windows, 0 will be returned.
 *
 * @param localeID the locale to get the Win32 LCID value with
 * @return country the Win32 LCID for localeID
 * @stable ICU 2.0
 */
U_STABLE uint32_t U_EXPORT2
uloc_getLCID(const char* localeID);

/**
 * Gets the language name suitable for display for the specified locale.
 *
 * @param locale the locale to get the ISO language code with
 * @param displayLocale Specifies the locale to be used to display the name.  In other words,
 *                 if the locale's language code is "en", passing Locale::getFrench() for
 *                 inLocale would result in "Anglais", while passing Locale::getGerman()
 *                 for inLocale would result in "Englisch".
 * @param language the displayable language code for localeID
 * @param languageCapacity the size of the language buffer to store the  
 * displayable language code with
 * @param status error information if retrieving the displayable language code failed
 * @return the actual buffer size needed for the displayable language code.  If it's greater 
 * than languageCapacity, the returned language code will be truncated.  
 * @stable ICU 2.0
 */
U_STABLE int32_t U_EXPORT2
uloc_getDisplayLanguage(const char* locale,
            const char* displayLocale,
            UChar* language,
            int32_t languageCapacity,
            UErrorCode* status);

/**
 * Gets the script name suitable for display for the specified locale.
 *
 * @param locale the locale to get the displayable script code with. NULL may be used to specify the default.
 * @param displayLocale Specifies the locale to be used to display the name.  In other words,
 *                 if the locale's language code is "en", passing Locale::getFrench() for
 *                 inLocale would result in "", while passing Locale::getGerman()
 *                 for inLocale would result in "". NULL may be used to specify the default.
 * @param script the displayable country code for localeID
 * @param scriptCapacity the size of the script buffer to store the  
 * displayable script code with
 * @param status error information if retrieving the displayable script code failed
 * @return the actual buffer size needed for the displayable script code.  If it's greater 
 * than scriptCapacity, the returned displayable script code will be truncated.  
 * @draft ICU 2.8
 */
U_DRAFT int32_t U_EXPORT2
uloc_getDisplayScript(const char* locale,
            const char* displayLocale,
            UChar* script,
            int32_t scriptCapacity,
            UErrorCode* status);

/**
 * Gets the country name suitable for display for the specified locale.
 *
 * @param locale the locale to get the displayable country code with. NULL may be used to specify the default.
 * @param displayLocale Specifies the locale to be used to display the name.  In other words,
 *                 if the locale's language code is "en", passing Locale::getFrench() for
 *                 inLocale would result in "Anglais", while passing Locale::getGerman()
 *                 for inLocale would result in "Englisch". NULL may be used to specify the default.
 * @param country the displayable country code for localeID
 * @param countryCapacity the size of the country buffer to store the  
 * displayable country code with
 * @param status error information if retrieving the displayable country code failed
 * @return the actual buffer size needed for the displayable country code.  If it's greater 
 * than countryCapacity, the returned displayable country code will be truncated.  
 * @stable ICU 2.0
 */
U_STABLE int32_t U_EXPORT2
uloc_getDisplayCountry(const char* locale,
                       const char* displayLocale,
                       UChar* country,
                       int32_t countryCapacity,
                       UErrorCode* status);


/**
 * Gets the variant name suitable for display for the specified locale.
 *
 * @param locale the locale to get the displayable variant code with. NULL may be used to specify the default.
 * @param displayLocale Specifies the locale to be used to display the name.  In other words,
 *                 if the locale's language code is "en", passing Locale::getFrench() for
 *                 inLocale would result in "Anglais", while passing Locale::getGerman()
 *                 for inLocale would result in "Englisch". NULL may be used to specify the default.
 * @param variant the displayable variant code for localeID
 * @param variantCapacity the size of the variant buffer to store the 
 * displayable variant code with
 * @param status error information if retrieving the displayable variant code failed
 * @return the actual buffer size needed for the displayable variant code.  If it's greater 
 * than variantCapacity, the returned displayable variant code will be truncated.  
 * @stable ICU 2.0
 */
U_STABLE int32_t U_EXPORT2
uloc_getDisplayVariant(const char* locale,