/**
* Returns the collator to use for lenient parsing. The collator is lazily created:
* this function creates it the first time it's called.
* @return The collator to use for lenient parsing, or null if lenient parsing
* is turned off.
*/
Collator*
RuleBasedNumberFormat::getCollator() const
{
#if !UCONFIG_NO_COLLATION
if (!ruleSets) {
return NULL;
}
// lazy-evaulate the collator
if (collator == NULL && lenient) {
// create a default collator based on the formatter's locale,
// then pull out that collator's rules, append any additional
// rules specified in the description, and create a _new_
// collator based on the combinaiton of those rules
UErrorCode status = U_ZERO_ERROR;
Collator* temp = Collator::createInstance(locale, status);
RuleBasedCollator* newCollator;
if (U_SUCCESS(status) && (newCollator = dynamic_cast<RuleBasedCollator*>(temp)) != NULL) {
if (lenientParseRules) {
UnicodeString rules(newCollator->getRules());
rules.append(*lenientParseRules);
newCollator = new RuleBasedCollator(rules, status);
// Exit if newCollator could not be created.
if (newCollator == NULL) {
return NULL;
}
} else {
temp = NULL;
}
if (U_SUCCESS(status)) {
newCollator->setAttribute(UCOL_DECOMPOSITION_MODE, UCOL_ON, status);
// cast away const
((RuleBasedNumberFormat*)this)->collator = newCollator;
} else {
delete newCollator;
}
}
delete temp;
}
#endif
// if lenient-parse mode is off, this will be null
// (see setLenientParseMode())
return collator;
}
// @bug 4059820
//
// RuleBasedCollator.getRules does not return the exact pattern as input
// for expanding character sequences
//
void CollationRegressionTest::Test4059820(/* char* par */)
{
UErrorCode status = U_ZERO_ERROR;
RuleBasedCollator *c = NULL;
UnicodeString rules = "&9 < a < b , c/a < d < z";
c = new RuleBasedCollator(rules, status);
if (c == NULL || U_FAILURE(status))
{
errln("Failure building a collator.");
delete c;
return;
}
if ( c->getRules().indexOf("c/a") == -1)
{
errln("returned rules do not contain 'c/a'");
}
delete c;
}
My4146160Collator::My4146160Collator(RuleBasedCollator &rbc, UErrorCode &status)
: RuleBasedCollator(rbc.getRules(), status)
{
}