void RuleBasedTransliterator::_construct(const UnicodeString& rules,
UTransDirection direction,
UParseError& parseError,
UErrorCode& status) {
fData = 0;
isDataOwned = TRUE;
if (U_FAILURE(status)) {
return;
}
TransliteratorParser parser(status);
parser.parse(rules, direction, parseError, status);
if (U_FAILURE(status)) {
return;
}
if (parser.idBlockVector.size() != 0 ||
parser.compoundFilter != NULL ||
parser.dataVector.size() == 0) {
status = U_INVALID_RBT_SYNTAX; // ::ID blocks disallowed in RBT
return;
}
fData = (TransliterationRuleData*)parser.dataVector.orphanElementAt(0);
setMaximumContextLength(fData->ruleSet.getMaximumContextLength());
}
TitlecaseTransliterator::TitlecaseTransliterator(const Locale& theLoc) :
Transliterator(_ID, 0),
loc(theLoc),
buffer(0)
{
buffer = (UChar *)uprv_malloc(u_getMaxCaseExpansion()*sizeof(buffer[0]));
// Need to look back 2 characters in the case of "can't"
setMaximumContextLength(2);
umtx_lock(NULL);
UBool f = (SKIP == NULL);
umtx_unlock(NULL);
if (f) {
UErrorCode ec = U_ZERO_ERROR;
UnicodeSet* skip =
new UnicodeSet(UNICODE_STRING_SIMPLE("[\\u00AD \\u2019 \\' [:Mn:] [:Me:] [:Cf:] [:Lm:] [:Sk:]]"), ec);
UnicodeSet* cased =
new UnicodeSet(UNICODE_STRING_SIMPLE("[[:Lu:] [:Ll:] [:Lt:]]"), ec);
if (skip != NULL && cased != NULL && U_SUCCESS(ec)) {
umtx_lock(NULL);
if (SKIP == NULL) {
SKIP = skip;
CASED = cased;
skip = cased = NULL;
}
umtx_unlock(NULL);
}
delete skip;
delete cased;
ucln_i18n_registerCleanup();
}
}
/**
* Internal constructor.
*/
RuleBasedTransliterator::RuleBasedTransliterator(const UnicodeString& id,
TransliterationRuleData* theData,
UBool isDataAdopted) :
Transliterator(id, 0),
fData(theData),
isDataOwned(isDataAdopted) {
setMaximumContextLength(fData->ruleSet.getMaximumContextLength());
}
RuleBasedTransliterator::RuleBasedTransliterator(const UnicodeString& id,
const TransliterationRuleData* theData,
UnicodeFilter* adoptedFilter) :
Transliterator(id, adoptedFilter),
fData((TransliterationRuleData*)theData), // cast away const
isDataOwned(FALSE) {
setMaximumContextLength(fData->ruleSet.getMaximumContextLength());
}
/**
* Sets the length of the longest context required by this transliterator.
* This is <em>preceding</em> context.
*/
void CompoundTransliterator::computeMaximumContextLength(void) {
int32_t max = 0;
for (int32_t i=0; i<count; ++i) {
int32_t len = trans[i]->getMaximumContextLength();
if (len > max) {
max = len;
}
}
setMaximumContextLength(max);
}
TitlecaseTransliterator::TitlecaseTransliterator() :
CaseMapTransliterator(UNICODE_STRING("Any-Title", 9), NULL)
{
// Need to look back 2 characters in the case of "can't"
setMaximumContextLength(2);
}
