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ICU-96 implement Collator::createInstance(...version...)

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X-SVN-Rev: 4058
This commit is contained in:
Markus Scherer 2001-03-14 00:23:47 +00:00
parent 293d8eb7c4
commit 1096a2a2e7
2 changed files with 41 additions and 0 deletions
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19
icu4c/source/i18n/coll.cpp
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@ -88,6 +88,25 @@ Collator* Collator::createInstance(const Locale& desiredLocale,
return collation;
}
Collator *
Collator::createInstance(const Locale &loc,
UVersionInfo version,
UErrorCode &status) {
Collator *collator;
UVersionInfo info;
collator=new RuleBasedCollator(loc, status);
if(U_SUCCESS(status)) {
collator->getVersion(info);
if(0!=uprv_memcmp(version, info, sizeof(UVersionInfo))) {
delete collator;
status=U_MISSING_RESOURCE_ERROR;
return NULL;
}
}
return collator;
}
UBool Collator::equals(const UnicodeString& source,
const UnicodeString& target) const
{

22
icu4c/source/i18n/unicode/coll.h
View file

@ -275,6 +275,28 @@ public:
*/
static Collator* createInstance(const Locale& loc, UErrorCode& err);
/**
* Create a Collator with a specific version.
* This is the same as createInstance(loc, err) except that getVersion() of
* the returned object is guaranteed to be the same as the version
* parameter.
* This is designed to be used to open the same collator for a given
* locale even when ICU is updated.
* The same locale and version guarantees the same sort keys and
* comparison results.
*
* @param loc The locale ID for which to open a collator.
* @param version The requested collator version.
* @param err A reference to a UErrorCode,
* must not indicate a failure before calling this function.
* @return A pointer to a Collator, or 0 if an error occurred
* or a collator with the requested version is not available.
*
* @see getVersion
* @draft ICU 1.8
*/
static Collator *createInstance(const Locale &loc, UVersionInfo version, UErrorCode &err);
/**
* The comparison function compares the character data stored in two
* different strings. Returns information about whether a string is less