Source/WTF/icu/unicode/uregion.h - WebKit - Git at Google

 // © 2016 and later: Unicode, Inc. and others.
 // License & terms of use: http://www.unicode.org/copyright.html
 /*
 *****************************************************************************************
 * Copyright (C) 2014, International Business Machines
 * Corporation and others. All Rights Reserved.
 *****************************************************************************************
 */

 #ifndef UREGION_H
 #define UREGION_H

 #include "unicode/utypes.h"
 #include "unicode/uenum.h"

 /**
  * \file
  * \brief C API: URegion (territory containment and mapping)
  *
  * URegion objects represent data associated with a particular Unicode Region Code, also known as a
  * Unicode Region Subtag, which is defined based upon the BCP 47 standard. These include:
  * * Two-letter codes defined by ISO 3166-1, with special LDML treatment of certain private-use or
  *   reserved codes;
  * * A subset of 3-digit numeric codes defined by UN M.49.
  * URegion objects can also provide mappings to and from additional codes. There are different types
  * of regions that are important to distinguish:
  * <p>
  * Macroregion - A code for a "macro geographical (continental) region, geographical sub-region, or
  * selected economic and other grouping" as defined in UN M.49. These are typically 3-digit codes,
  * but contain some 2-letter codes for LDML extensions, such as "QO" for Outlying Oceania.
  * Macroregions are represented in ICU by one of three region types: WORLD (code 001),
  * CONTINENTS (regions contained directly by WORLD), and SUBCONTINENTS (regions contained directly
  * by a continent ).
  * <p>
  * TERRITORY - A Region that is not a Macroregion. These are typically codes for countries, but also
  * include areas that are not separate countries, such as the code "AQ" for Antarctica or the code
  * "HK" for Hong Kong (SAR China). Overseas dependencies of countries may or may not have separate
  * codes. The codes are typically 2-letter codes aligned with ISO 3166, but BCP47 allows for the use
  * of 3-digit codes in the future.
  * <p>
  * UNKNOWN - The code ZZ is defined by Unicode LDML for use in indicating that region is unknown,
  * or that the value supplied as a region was invalid.
  * <p>
  * DEPRECATED - Region codes that have been defined in the past but are no longer in modern usage,
  * usually due to a country splitting into multiple territories or changing its name.
  * <p>
  * GROUPING - A widely understood grouping of territories that has a well defined membership such
  * that a region code has been assigned for it.  Some of these are UN M.49 codes that don't fall into
  * the world/continent/sub-continent hierarchy, while others are just well-known groupings that have
  * their own region code. Region "EU" (European Union) is one such region code that is a grouping.
  * Groupings will never be returned by the uregion_getContainingRegion, since a different type of region
  * (WORLD, CONTINENT, or SUBCONTINENT) will always be the containing region instead.
  *
  * URegion objects are const/immutable, owned and maintained by ICU itself, so there are not functions
  * to open or close them.
  */

 /**
  * URegionType is an enumeration defining the different types of regions.  Current possible
  * values are URGN_WORLD, URGN_CONTINENT, URGN_SUBCONTINENT, URGN_TERRITORY, URGN_GROUPING,
  * URGN_DEPRECATED, and URGN_UNKNOWN.
  *
  * @stable ICU 51
  */
 typedef enum URegionType {
     /**
      * Type representing the unknown region.
      * @stable ICU 51
      */
     URGN_UNKNOWN,

     /**
      * Type representing a territory.
      * @stable ICU 51
      */
     URGN_TERRITORY,

     /**
      * Type representing the whole world.
      * @stable ICU 51
      */
     URGN_WORLD,

     /**
      * Type representing a continent.
      * @stable ICU 51
      */
     URGN_CONTINENT,

     /**
      * Type representing a sub-continent.
      * @stable ICU 51
      */
     URGN_SUBCONTINENT,

     /**
      * Type representing a grouping of territories that is not to be used in
      * the normal WORLD/CONTINENT/SUBCONTINENT/TERRITORY containment tree.
      * @stable ICU 51
      */
     URGN_GROUPING,

     /**
      * Type representing a region whose code has been deprecated, usually
      * due to a country splitting into multiple territories or changing its name.
      * @stable ICU 51
      */
     URGN_DEPRECATED,

 #ifndef U_HIDE_DEPRECATED_API
     /**
      * One more than the highest normal URegionType value.
      * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
      */
     URGN_LIMIT
 #endif  /* U_HIDE_DEPRECATED_API */
 } URegionType;

 #if !UCONFIG_NO_FORMATTING

 /**
  * Opaque URegion object for use in C programs.
  * @stable ICU 52
  */
 struct URegion;
 typedef struct URegion URegion; /**< @stable ICU 52 */

 /**
  * Returns a pointer to a URegion for the specified region code: A 2-letter or 3-letter ISO 3166
  * code, UN M.49 numeric code (superset of ISO 3166 numeric codes), or other valid Unicode Region
  * Code as defined by the LDML specification. The code will be canonicalized internally. If the
  * region code is NULL or not recognized, the appropriate error code will be set
  * (U_ILLEGAL_ARGUMENT_ERROR).
  * @stable ICU 52
  */
 U_STABLE const URegion* U_EXPORT2
 uregion_getRegionFromCode(const char *regionCode, UErrorCode *status);

 /**
  * Returns a pointer to a URegion for the specified numeric region code. If the numeric region
  * code is not recognized, the appropriate error code will be set (U_ILLEGAL_ARGUMENT_ERROR).
  * @stable ICU 52
  */
 U_STABLE const URegion* U_EXPORT2
 uregion_getRegionFromNumericCode (int32_t code, UErrorCode *status);

 /**
  * Returns an enumeration over the canonical codes of all known regions that match the given type.
  * The enumeration must be closed with with uenum_close().
  * @stable ICU 52
  */
 U_STABLE UEnumeration* U_EXPORT2
 uregion_getAvailable(URegionType type, UErrorCode *status);

 /**
  * Returns true if the specified uregion is equal to the specified otherRegion.
  * @stable ICU 52
  */
 U_STABLE UBool U_EXPORT2
 uregion_areEqual(const URegion* uregion, const URegion* otherRegion);

 /**
  * Returns a pointer to the URegion that contains the specified uregion. Returns NULL if the
  * specified uregion is code "001" (World) or "ZZ" (Unknown region). For example, calling
  * this method with region "IT" (Italy) returns the URegion for "039" (Southern Europe).
  * @stable ICU 52
  */
 U_STABLE const URegion* U_EXPORT2
 uregion_getContainingRegion(const URegion* uregion);

 /**
  * Return a pointer to the URegion that geographically contains this uregion and matches the
  * specified type, moving multiple steps up the containment chain if necessary. Returns NULL if no
  * containing region can be found that matches the specified type. Will return NULL if URegionType
  * is URGN_GROUPING, URGN_DEPRECATED, or URGN_UNKNOWN which are not appropriate for this API.
  * For example, calling this method with uregion "IT" (Italy) for type URGN_CONTINENT returns the
  * URegion "150" (Europe).
  * @stable ICU 52
  */
 U_STABLE const URegion* U_EXPORT2
 uregion_getContainingRegionOfType(const URegion* uregion, URegionType type);

 /**
  * Return an enumeration over the canonical codes of all the regions that are immediate children
  * of the specified uregion in the region hierarchy. These returned regions could be either macro
  * regions, territories, or a mixture of the two, depending on the containment data as defined in
  * CLDR. This API returns NULL if this uregion doesn't have any sub-regions. For example, calling
  * this function for uregion "150" (Europe) returns an enumeration containing the various
  * sub-regions of Europe: "039" (Southern Europe), "151" (Eastern Europe), "154" (Northern Europe),
  * and "155" (Western Europe). The enumeration must be closed with with uenum_close().
  * @stable ICU 52
  */
 U_STABLE UEnumeration* U_EXPORT2
 uregion_getContainedRegions(const URegion* uregion, UErrorCode *status);

 /**
  * Returns an enumeration over the canonical codes of all the regions that are children of the
  * specified uregion anywhere in the region hierarchy and match the given type. This API may return
  * an empty enumeration if this uregion doesn't have any sub-regions that match the given type.
  * For example, calling this method with region "150" (Europe) and type URGN_TERRITORY" returns an
  * enumeration containing all the territories in Europe: "FR" (France), "IT" (Italy), "DE" (Germany),
  * etc. The enumeration must be closed with with uenum_close().
  * @stable ICU 52
  */
 U_STABLE UEnumeration* U_EXPORT2
 uregion_getContainedRegionsOfType(const URegion* uregion, URegionType type, UErrorCode *status);

 /**
  * Returns true if the specified uregion contains the specified otherRegion anywhere in the region
  * hierarchy.
  * @stable ICU 52
  */
 U_STABLE UBool U_EXPORT2
 uregion_contains(const URegion* uregion, const URegion* otherRegion);

 /**
  * If the specified uregion is deprecated, returns an enumeration over the canonical codes of the
  * regions that are the preferred replacement regions for the specified uregion. If the specified
  * uregion is not deprecated, returns NULL. For example, calling this method with uregion
  * "SU" (Soviet Union) returns a list of the regions containing "RU" (Russia), "AM" (Armenia),
  * "AZ" (Azerbaijan), etc... The enumeration must be closed with with uenum_close().
  * @stable ICU 52
  */
 U_STABLE UEnumeration* U_EXPORT2
 uregion_getPreferredValues(const URegion* uregion, UErrorCode *status);

 /**
  * Returns the specified uregion's canonical code.
  * @stable ICU 52
  */
 U_STABLE const char* U_EXPORT2
 uregion_getRegionCode(const URegion* uregion);

 /**
  * Returns the specified uregion's numeric code, or a negative value if there is no numeric code
  * for the specified uregion.
  * @stable ICU 52
  */
 U_STABLE int32_t U_EXPORT2
 uregion_getNumericCode(const URegion* uregion);

 /**
  * Returns the URegionType of the specified uregion.
  * @stable ICU 52
  */
 U_STABLE URegionType U_EXPORT2
 uregion_getType(const URegion* uregion);


 #endif /* #if !UCONFIG_NO_FORMATTING */

 #endif
	// © 2016 and later: Unicode, Inc. and others.
	// License & terms of use: http://www.unicode.org/copyright.html
	/*
	*****************************************************************************************
	* Copyright (C) 2014, International Business Machines
	* Corporation and others. All Rights Reserved.
	*****************************************************************************************
	*/

	#ifndef UREGION_H
	#define UREGION_H

	#include "unicode/utypes.h"
	#include "unicode/uenum.h"

	/**
	* \file
	* \brief C API: URegion (territory containment and mapping)
	*
	* URegion objects represent data associated with a particular Unicode Region Code, also known as a
	* Unicode Region Subtag, which is defined based upon the BCP 47 standard. These include:
	* * Two-letter codes defined by ISO 3166-1, with special LDML treatment of certain private-use or
	* reserved codes;
	* * A subset of 3-digit numeric codes defined by UN M.49.
	* URegion objects can also provide mappings to and from additional codes. There are different types
	* of regions that are important to distinguish:
	* <p>
	* Macroregion - A code for a "macro geographical (continental) region, geographical sub-region, or
	* selected economic and other grouping" as defined in UN M.49. These are typically 3-digit codes,
	* but contain some 2-letter codes for LDML extensions, such as "QO" for Outlying Oceania.
	* Macroregions are represented in ICU by one of three region types: WORLD (code 001),
	* CONTINENTS (regions contained directly by WORLD), and SUBCONTINENTS (regions contained directly
	* by a continent ).
	* <p>
	* TERRITORY - A Region that is not a Macroregion. These are typically codes for countries, but also
	* include areas that are not separate countries, such as the code "AQ" for Antarctica or the code
	* "HK" for Hong Kong (SAR China). Overseas dependencies of countries may or may not have separate
	* codes. The codes are typically 2-letter codes aligned with ISO 3166, but BCP47 allows for the use
	* of 3-digit codes in the future.
	* <p>
	* UNKNOWN - The code ZZ is defined by Unicode LDML for use in indicating that region is unknown,
	* or that the value supplied as a region was invalid.
	* <p>
	* DEPRECATED - Region codes that have been defined in the past but are no longer in modern usage,
	* usually due to a country splitting into multiple territories or changing its name.
	* <p>
	* GROUPING - A widely understood grouping of territories that has a well defined membership such
	* that a region code has been assigned for it. Some of these are UN M.49 codes that don't fall into
	* the world/continent/sub-continent hierarchy, while others are just well-known groupings that have
	* their own region code. Region "EU" (European Union) is one such region code that is a grouping.
	* Groupings will never be returned by the uregion_getContainingRegion, since a different type of region
	* (WORLD, CONTINENT, or SUBCONTINENT) will always be the containing region instead.
	*
	* URegion objects are const/immutable, owned and maintained by ICU itself, so there are not functions
	* to open or close them.
	*/

	/**
	* URegionType is an enumeration defining the different types of regions. Current possible
	* values are URGN_WORLD, URGN_CONTINENT, URGN_SUBCONTINENT, URGN_TERRITORY, URGN_GROUPING,
	* URGN_DEPRECATED, and URGN_UNKNOWN.
	*
	* @stable ICU 51
	*/
	typedef enum URegionType {
	/**
	* Type representing the unknown region.
	* @stable ICU 51
	*/
	URGN_UNKNOWN,

	/**
	* Type representing a territory.
	* @stable ICU 51
	*/
	URGN_TERRITORY,

	/**
	* Type representing the whole world.
	* @stable ICU 51
	*/
	URGN_WORLD,

	/**
	* Type representing a continent.
	* @stable ICU 51
	*/
	URGN_CONTINENT,

	/**
	* Type representing a sub-continent.
	* @stable ICU 51
	*/
	URGN_SUBCONTINENT,

	/**
	* Type representing a grouping of territories that is not to be used in
	* the normal WORLD/CONTINENT/SUBCONTINENT/TERRITORY containment tree.
	* @stable ICU 51
	*/
	URGN_GROUPING,

	/**
	* Type representing a region whose code has been deprecated, usually
	* due to a country splitting into multiple territories or changing its name.
	* @stable ICU 51
	*/
	URGN_DEPRECATED,

	#ifndef U_HIDE_DEPRECATED_API
	/**
	* One more than the highest normal URegionType value.
	* @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
	*/
	URGN_LIMIT
	#endif /* U_HIDE_DEPRECATED_API */
	} URegionType;

	#if !UCONFIG_NO_FORMATTING

	/**
	* Opaque URegion object for use in C programs.
	* @stable ICU 52
	*/
	struct URegion;
	typedef struct URegion URegion; /*< @stable ICU 52 /

	/**
	* Returns a pointer to a URegion for the specified region code: A 2-letter or 3-letter ISO 3166
	* code, UN M.49 numeric code (superset of ISO 3166 numeric codes), or other valid Unicode Region
	* Code as defined by the LDML specification. The code will be canonicalized internally. If the
	* region code is NULL or not recognized, the appropriate error code will be set
	* (U_ILLEGAL_ARGUMENT_ERROR).
	* @stable ICU 52
	*/
	U_STABLE const URegion* U_EXPORT2
	uregion_getRegionFromCode(const char regionCode, UErrorCode status);

	/**
	* Returns a pointer to a URegion for the specified numeric region code. If the numeric region
	* code is not recognized, the appropriate error code will be set (U_ILLEGAL_ARGUMENT_ERROR).
	* @stable ICU 52
	*/
	U_STABLE const URegion* U_EXPORT2
	uregion_getRegionFromNumericCode (int32_t code, UErrorCode *status);

	/**
	* Returns an enumeration over the canonical codes of all known regions that match the given type.
	* The enumeration must be closed with with uenum_close().
	* @stable ICU 52
	*/
	U_STABLE UEnumeration* U_EXPORT2
	uregion_getAvailable(URegionType type, UErrorCode *status);

	/**
	* Returns true if the specified uregion is equal to the specified otherRegion.
	* @stable ICU 52
	*/
	U_STABLE UBool U_EXPORT2
	uregion_areEqual(const URegion* uregion, const URegion* otherRegion);

	/**
	* Returns a pointer to the URegion that contains the specified uregion. Returns NULL if the
	* specified uregion is code "001" (World) or "ZZ" (Unknown region). For example, calling
	* this method with region "IT" (Italy) returns the URegion for "039" (Southern Europe).
	* @stable ICU 52
	*/
	U_STABLE const URegion* U_EXPORT2
	uregion_getContainingRegion(const URegion* uregion);

	/**
	* Return a pointer to the URegion that geographically contains this uregion and matches the
	* specified type, moving multiple steps up the containment chain if necessary. Returns NULL if no
	* containing region can be found that matches the specified type. Will return NULL if URegionType
	* is URGN_GROUPING, URGN_DEPRECATED, or URGN_UNKNOWN which are not appropriate for this API.
	* For example, calling this method with uregion "IT" (Italy) for type URGN_CONTINENT returns the
	* URegion "150" (Europe).
	* @stable ICU 52
	*/
	U_STABLE const URegion* U_EXPORT2
	uregion_getContainingRegionOfType(const URegion* uregion, URegionType type);

	/**
	* Return an enumeration over the canonical codes of all the regions that are immediate children
	* of the specified uregion in the region hierarchy. These returned regions could be either macro
	* regions, territories, or a mixture of the two, depending on the containment data as defined in
	* CLDR. This API returns NULL if this uregion doesn't have any sub-regions. For example, calling
	* this function for uregion "150" (Europe) returns an enumeration containing the various
	* sub-regions of Europe: "039" (Southern Europe), "151" (Eastern Europe), "154" (Northern Europe),
	* and "155" (Western Europe). The enumeration must be closed with with uenum_close().
	* @stable ICU 52
	*/
	U_STABLE UEnumeration* U_EXPORT2
	uregion_getContainedRegions(const URegion* uregion, UErrorCode *status);

	/**
	* Returns an enumeration over the canonical codes of all the regions that are children of the
	* specified uregion anywhere in the region hierarchy and match the given type. This API may return
	* an empty enumeration if this uregion doesn't have any sub-regions that match the given type.
	* For example, calling this method with region "150" (Europe) and type URGN_TERRITORY" returns an
	* enumeration containing all the territories in Europe: "FR" (France), "IT" (Italy), "DE" (Germany),
	* etc. The enumeration must be closed with with uenum_close().
	* @stable ICU 52
	*/
	U_STABLE UEnumeration* U_EXPORT2
	uregion_getContainedRegionsOfType(const URegion* uregion, URegionType type, UErrorCode *status);

	/**
	* Returns true if the specified uregion contains the specified otherRegion anywhere in the region
	* hierarchy.
	* @stable ICU 52
	*/
	U_STABLE UBool U_EXPORT2
	uregion_contains(const URegion* uregion, const URegion* otherRegion);

	/**
	* If the specified uregion is deprecated, returns an enumeration over the canonical codes of the
	* regions that are the preferred replacement regions for the specified uregion. If the specified
	* uregion is not deprecated, returns NULL. For example, calling this method with uregion
	* "SU" (Soviet Union) returns a list of the regions containing "RU" (Russia), "AM" (Armenia),
	* "AZ" (Azerbaijan), etc... The enumeration must be closed with with uenum_close().
	* @stable ICU 52
	*/
	U_STABLE UEnumeration* U_EXPORT2
	uregion_getPreferredValues(const URegion* uregion, UErrorCode *status);

	/**
	* Returns the specified uregion's canonical code.
	* @stable ICU 52
	*/
	U_STABLE const char* U_EXPORT2
	uregion_getRegionCode(const URegion* uregion);

	/**
	* Returns the specified uregion's numeric code, or a negative value if there is no numeric code
	* for the specified uregion.
	* @stable ICU 52
	*/
	U_STABLE int32_t U_EXPORT2
	uregion_getNumericCode(const URegion* uregion);

	/**
	* Returns the URegionType of the specified uregion.
	* @stable ICU 52
	*/
	U_STABLE URegionType U_EXPORT2
	uregion_getType(const URegion* uregion);


	#endif /* #if !UCONFIG_NO_FORMATTING */

	#endif