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-rw-r--r-- | intl/icu/source/common/locbased.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/intl/icu/source/common/locbased.h b/intl/icu/source/common/locbased.h new file mode 100644 index 0000000000..45738863b5 --- /dev/null +++ b/intl/icu/source/common/locbased.h @@ -0,0 +1,107 @@ +// © 2016 and later: Unicode, Inc. and others. +// License & terms of use: http://www.unicode.org/copyright.html +/* +********************************************************************** +* Copyright (c) 2004-2014, International Business Machines +* Corporation and others. All Rights Reserved. +********************************************************************** +* Author: Alan Liu +* Created: January 16 2004 +* Since: ICU 2.8 +********************************************************************** +*/ +#ifndef LOCBASED_H +#define LOCBASED_H + +#include "unicode/locid.h" +#include "unicode/uobject.h" + +/** + * Macro to declare a locale LocaleBased wrapper object for the given + * object, which must have two members named `validLocale' and + * `actualLocale' of size ULOC_FULLNAME_CAPACITY + */ +#define U_LOCALE_BASED(varname, objname) \ + LocaleBased varname((objname).validLocale, (objname).actualLocale) + +U_NAMESPACE_BEGIN + +/** + * A utility class that unifies the implementation of getLocale() by + * various ICU services. This class is likely to be removed in the + * ICU 3.0 time frame in favor of an integrated approach with the + * services framework. + * @since ICU 2.8 + */ +class U_COMMON_API LocaleBased : public UMemory { + + public: + + /** + * Construct a LocaleBased wrapper around the two pointers. These + * will be aliased for the lifetime of this object. + */ + inline LocaleBased(char* validAlias, char* actualAlias); + + /** + * Construct a LocaleBased wrapper around the two const pointers. + * These will be aliased for the lifetime of this object. + */ + inline LocaleBased(const char* validAlias, const char* actualAlias); + + /** + * Return locale meta-data for the service object wrapped by this + * object. Either the valid or the actual locale may be + * retrieved. + * @param type either ULOC_VALID_LOCALE or ULOC_ACTUAL_LOCALE + * @param status input-output error code + * @return the indicated locale + */ + Locale getLocale(ULocDataLocaleType type, UErrorCode& status) const; + + /** + * Return the locale ID for the service object wrapped by this + * object. Either the valid or the actual locale may be + * retrieved. + * @param type either ULOC_VALID_LOCALE or ULOC_ACTUAL_LOCALE + * @param status input-output error code + * @return the indicated locale ID + */ + const char* getLocaleID(ULocDataLocaleType type, UErrorCode& status) const; + + /** + * Set the locale meta-data for the service object wrapped by this + * object. If either parameter is zero, it is ignored. + * @param valid the ID of the valid locale + * @param actual the ID of the actual locale + */ + void setLocaleIDs(const char* valid, const char* actual); + + /** + * Set the locale meta-data for the service object wrapped by this + * object. + * @param valid the ID of the valid locale + * @param actual the ID of the actual locale + */ + void setLocaleIDs(const Locale& valid, const Locale& actual); + + private: + + char* valid; + + char* actual; +}; + +inline LocaleBased::LocaleBased(char* validAlias, char* actualAlias) : + valid(validAlias), actual(actualAlias) { +} + +inline LocaleBased::LocaleBased(const char* validAlias, + const char* actualAlias) : + // ugh: cast away const + valid((char*)validAlias), actual((char*)actualAlias) { +} + +U_NAMESPACE_END + +#endif |