home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
AmigActive 6
/
AACD06.ISO
/
AACD
/
Programming
/
ICU
/
include
/
uloc.h
< prev
next >
Wrap
C/C++ Source or Header
|
1999-11-12
|
17KB
|
479 lines
/*
********************************************************************************
* *
* COPYRIGHT: *
* (C) Copyright Taligent, Inc., 1997 *
* (C) Copyright International Business Machines Corporation, 1997-1999 *
* Licensed Material - Program-Property of IBM - All Rights Reserved. *
* US Government Users Restricted Rights - Use, duplication, or disclosure *
* restricted by GSA ADP Schedule Contract with IBM Corp. *
* *
********************************************************************************
*
* File ULOC.H
*
* Modification History:
*
* Date Name Description
* 04/01/97 aliu Creation.
* 08/22/98 stephen JDK 1.2 sync.
* 12/08/98 rtg New C API for Locale
* 03/30/99 damiba overhaul
* 03/31/99 helena Javadoc for uloc functions.
* 04/15/99 Madhu Updated Javadoc
********************************************************************************
*/
#ifndef ULOC_H
#define ULOC_H
#include "utypes.h"
/**
*
* A <code>Locale</code> represents a specific geographical, political,
* or cultural region. An operation that requires a <code>Locale</code> to perform
* its task is called <em>locale-sensitive</em> and uses the <code>Locale</code>
* to tailor information for the user. For example, displaying a number
* is a locale-sensitive operation--the number should be formatted
* according to the customs/conventions of the user's native country,
* region, or culture. In the C APIs, a locales is simply a const char string.
*
* <P>
* You create a <code>Locale</code> with one of the three options listed below.
* Each of the component is separated by '_' in the locale string.
* <blockquote>
* <pre>
* . newLanguage
* .
* . newLanguage + newCountry
* .
* . newLanguage + newCountry + newVariant
* </pre>
* </blockquote>
* The first option is a valid <STRONG>ISO
* Language Code.</STRONG> These codes are the lower-case two-letter
* codes as defined by ISO-639.
* You can find a full list of these codes at a number of sites, such as:
* <BR><a href ="http://www.ics.uci.edu/pub/ietf/http/related/iso639.txt">
* <code>http://www.ics.uci.edu/pub/ietf/http/related/iso639.txt</code></a>
*
* <P>
* The second option includes an additonal <STRONG>ISO Country
* Code.</STRONG> These codes are the upper-case two-letter codes
* as defined by ISO-3166.
* You can find a full list of these codes at a number of sites, such as:
* <BR><a href="http://www.chemie.fu-berlin.de/diverse/doc/ISO_3166.html">
* <code>http://www.chemie.fu-berlin.de/diverse/doc/ISO_3166.html</code></a>
*
* <P>
* The third option requires another additonal information--the
* <STRONG>Variant.</STRONG>
* The Variant codes are vendor and browser-specific.
* For example, use WIN for Windows, MAC for Macintosh, and POSIX for POSIX.
* Where there are two variants, separate them with an underscore, and
* put the most important one first. For
* example, a Traditional Spanish collation might be referenced, with
* "ES", "ES", "Traditional_WIN".
*
* <P>
* Because a <code>Locale</code> is just an identifier for a region,
* no validity check is performed when you specify a <code>Locale</code>.
* If you want to see whether particular resources are available for the
* <code>Locale</code> you asked for, you must query those resources. For
* example, ask the <code>UNumberFormat</code> for the locales it supports
* using its <code>getAvailable</code> method.
* <BR><STRONG>Note:</STRONG> When you ask for a resource for a particular
* locale, you get back the best available match, not necessarily
* precisely what you asked for. For more information, look at
* <a href="ures.html"><code>UResourceBundle</code></a>.
*
* <P>
* The <code>Locale</code> provides a number of convenient constants
* that you can use to specify the commonly used
* locales. For example, the following refers to a locale
* for the United States:
* <blockquote>
* <pre>
* . ULOC_US
* </pre>
* </blockquote>
*
* <P>
* Once you've specified a locale you can query it for information about
* itself. Use <code>uloc_getCountry</code> to get the ISO Country Code and
* <code>uloc_getLanguage</code> to get the ISO Language Code. You can
* use <code>uloc_getDisplayCountry</code> to get the
* name of the country suitable for displaying to the user. Similarly,
* you can use <code>uloc_getDisplayLanguage</code> to get the name of
* the language suitable for displaying to the user. Interestingly,
* the <code>uloc_getDisplayXXX</code> methods are themselves locale-sensitive
* and have two versions: one that uses the default locale and one
* that takes a locale as an argument and displays the name or country in
* a language appropriate to that locale.
*
* <P>
* The ICU provides a number of services that perform locale-sensitive
* operations. For example, the <code>unum_xxx</code> functions format
* numbers, currency, or percentages in a locale-sensitive manner.
* </P>
* <blockquote>
* <pre>
* . UErrorCode success = U_ZERO_ERROR;
* . UNumberFormat *nf;
* . const char* myLocale = "fr_FR";
* .
* . nf = unum_open( UNUM_DEFAULT, NULL, success );
* . unum_close(nf);
* . nf = unum_open( UNUM_CURRENCY, NULL, success );
* . unum_close(nf);
* . nf = unum_open( UNUM_PERCENT, NULL, success );
* . unum_close(nf);
* </pre>
* </blockquote>
* Each of these methods has two variants; one with an explicit locale
* and one without; the latter using the default locale.
* <blockquote>
* <pre>
* .
* . nf = unum_open( UNUM_DEFAULT, myLocale, success );
* . unum_close(nf);
* . nf = unum_open( UNUM_CURRENCY, myLocale, success );
* . unum_close(nf);
* . nf = unum_open( UNUM_PERCENT, myLocale, success );
* . unum_close(nf);
* </pre>
* </blockquote>
* A <code>Locale</code> is the mechanism for identifying the kind of services
* (<code>UNumberFormat</code>) that you would like to get. The locale is
* <STRONG>just</STRONG> a mechanism for identifying these services.
*
* <P>
* Each international serivce that performs locale-sensitive operations
* allows you
* to get all the available objects of that type. You can sift
* through these objects by language, country, or variant,
* and use the display names to present a menu to the user.
* For example, you can create a menu of all the collation objects
* suitable for a given language. Such classes implement these
* three class methods:
* <blockquote>
* <pre>
* . const char* uloc_getAvailable(int32_t index);
* . int32_t uloc_countAvailable();
* . int32_t
* . uloc_getDisplayName(const char* localeID,
* . const char* inLocaleID,
* . UChar* result,
* . int32_t maxResultSize,
* . UErrorCode* err);
* .
* </pre>
* </blockquote>
*/
/**
*
* Useful constants for language.
*/
#define ULOC_ENGLISH "en"
#define ULOC_FRENCH "fr"
#define ULOC_GERMAN "de"
#define ULOC_ITALIAN "it"
#define ULOC_JAPANESE "ja"
#define ULOC_KOREAN "ko"
#define ULOC_CHINESE "zh"
#define ULOC_SIMPLIFIED_CHINESE "zh_CN"
#define ULOC_TRADITIONAL_CHINESE "zh_TW"
/**
*
* Useful constants for country.
*/
#define ULOC_FRANCE "fr_FR"
#define ULOC_GERMANY "de_DE"
#define ULOC_ITALY "it_IT"
#define ULOC_JAPAN "ja_JP"
#define ULOC_KOREA "ko_KR"
#define ULOC_CHINA "zh_CN"
#define ULOC_PRC "zh_CN"
#define ULOC_TAIWAN "zh_TW"
#define ULOC_UK "en_GB"
#define ULOC_US "en_US"
#define ULOC_CANADA "en_CA"
#define ULOC_CANADA_FRENCH "fr_CA"
/**
*
* Gets the system's default locale.
* @return the system default locale
*/
U_CAPI const char* U_EXPORT2
uloc_getDefault(void);
/**
*
* Sets the system's default locale.
* @param localeID the new system default locale
* @param status the error information if the setting of default locale fails
*/
U_CAPI 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 langauge code with
* @param language the langauge 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 langauge code. If it's greater
* than languageCapacity, the returned language code will be truncated.
*/
U_CAPI int32_t U_EXPORT2
uloc_getLanguage(const char* localeID,
char* language,
int32_t languageCapacity,
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 languageCapacity the size of the coutry 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.
*/
U_CAPI 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.
*/
U_CAPI int32_t U_EXPORT2
uloc_getVariant(const char* localeID,
char* variant,
int32_t variantCapacity,
UErrorCode* err);
/**
*
* Gets the full name for the specified locale.
* @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.
*/
U_CAPI int32_t U_EXPORT2
uloc_getName(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 langauge code with
* @return language the ISO langauge code for localeID
*/
U_CAPI 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
*/
U_CAPI const char* U_EXPORT2
uloc_getISO3Country(const char* localeID);
/**
*
* Gets the Win32 LCID value for the specified locale.
* @param localeID the locale to get the Win32 LCID value with
* @return country the Win32 LCID for localeID
*/
U_CAPI uint32_t U_EXPORT2
uloc_getLCID(const char* localeID);
/**
*
* Gets the language name suitable for display for the specified locale.
* @param localeID the locale to get the ISO langauge code with
* @param language the displayable langauge code for localeID
* @param languageCapacity the size of the language buffer to store the
* displayable language code with
* @param err error information if retrieving the displayable language code failed
* @return the actual buffer size needed for the displayable langauge code. If it's greater
* than languageCapacity, the returned language code will be truncated.
*/
U_CAPI int32_t U_EXPORT2
uloc_getDisplayLanguage(const char* locale,
const char* inLocale,
UChar* language,
int32_t languageCapacity,
UErrorCode* status);
/**
*
* Gets the country name suitable for display for the specified locale.
* @param localeID the locale to get the displayable country code with
* @param country the displayable country code for localeID
* @param languageCapacity the size of the coutry buffer to store the
* displayable country code with
* @param err 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.
*/
U_CAPI int32_t U_EXPORT2
uloc_getDisplayCountry(const char* locale,
const char* inLocale,
UChar* country,
int32_t countryCapacity,
UErrorCode* status); /* NULL may be used to specify the default */
/**
*
* Gets the variant code suitable for display for the specified locale.
* @param localeID the locale to get the displayable variant code with
* @param variant the displayable variant code for localeID
* @param variantCapacity the size of the variant buffer to store the
* displayable variant code with
* @param err 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.
*/
U_CAPI int32_t U_EXPORT2
uloc_getDisplayVariant(const char* locale,
const char* inLocale,
UChar* variant,
int32_t variantCapacity,
UErrorCode* status); /* NULL may be used to specify the default */
/**
*
* Gets the full name suitable for display for the specified locale.
* @param localeID the locale to get the displayable name with
* @param variant the displayable name for localeID
* @param variantCapacity the size of the name buffer to store the
* displayable full name with
* @param err error information if retrieving the displayable name failed
* @return the actual buffer size needed for the displayable name. If it's greater
* than variantCapacity, the returned displayable name will be truncated.
*/
U_CAPI int32_t U_EXPORT2
uloc_getDisplayName(const char* localeID,
const char* inLocaleID, /* NULL may be used to specify the default */
UChar* result,
int32_t maxResultSize,
UErrorCode* err);
/**
*
* Gets the specified locale from a list of all available locales.
* The return value is a pointer to an item of
* a locale name array. Both this array and the pointers
* it contains are owned by ICU and should not be deleted or written through
* by the caller. The locale name is terminated by a null pointer.
* @param index the specific locale name index of the available locale list
* @return a specified locale name of all available locales
*/
U_CAPI const char* U_EXPORT2
uloc_getAvailable(int32_t index);
/**
*
* Gets the size of the all available locale list.
* @return the size of the locale list
*/
U_CAPI int32_t U_EXPORT2 uloc_countAvailable(void);
/**
*
* Gets a list of all available language codes defined in ISO 639. This is a pointer
* to an array of pointers to arrays of char. All of these pointers are owned
* by ICU-- do not delete them, and do not write through them. The array is
* terminated with a null pointer.
* @return a list of all available language codes
*/
U_CAPI const char* const* U_EXPORT2
uloc_getISOLanguages(void);
/**
*
* Gets a list of all available 2-letter country codes defined in ISO 639. This is a
* pointer to an array of pointers to arrays of char. All of these pointers are
* owned by ICU-- do not delete them, and do not write through them. The array is
* terminated with a null pointer.
* @return a list of all available country codes
*/
U_CAPI const char* const* U_EXPORT2
uloc_getISOCountries(void);
/**
*
* Gets the directory containing the locale data files.
* @return the locale data file directory
*/
U_CAPI const char* U_EXPORT2
uloc_getDataDirectory(void);
/**
*
* Sets the directory containing the locale data files.
* @return the new directory to fetch locale data from
*/
U_CAPI void U_EXPORT2
uloc_setDataDirectory(const char* newDirectory);
/*Internal function */
int32_t U_EXPORT2
uloc_getParent(const char* localeID,
char* parent,
int32_t parentCapacity,
UErrorCode* err);
/*eof*/
#endif /*_ULOC*/