CEList::CEList(UCollator *coll, const UnicodeString &string, UErrorCode &status)
: ces(NULL), listMax(CELIST_BUFFER_SIZE), listSize(0)
{
UCollationElements *elems = ucol_openElements(coll, string.getBuffer(), string.length(), &status);
UCollationStrength strength = ucol_getStrength(coll);
UBool toShift = ucol_getAttribute(coll, UCOL_ALTERNATE_HANDLING, &status) == UCOL_SHIFTED;
uint32_t variableTop = ucol_getVariableTop(coll, &status);
uint32_t strengthMask = 0;
int32_t order;
if (U_FAILURE(status)) {
return;
}
// **** only set flag if string has Han(gul) ****
// ucol_forceHanImplicit(elems, &status); -- removed for ticket #10476
switch (strength)
{
default:
strengthMask |= UCOL_TERTIARYORDERMASK;
U_FALLTHROUGH;
case UCOL_SECONDARY:
strengthMask |= UCOL_SECONDARYORDERMASK;
U_FALLTHROUGH;
case UCOL_PRIMARY:
strengthMask |= UCOL_PRIMARYORDERMASK;
}
ces = ceBuffer;
while ((order = ucol_next(elems, &status)) != UCOL_NULLORDER) {
UBool cont = isContinuation(order);
order &= strengthMask;
if (toShift && variableTop > (uint32_t)order && (order & UCOL_PRIMARYORDERMASK) != 0) {
if (strength >= UCOL_QUATERNARY) {
order &= UCOL_PRIMARYORDERMASK;
} else {
order = UCOL_IGNORABLE;
}
}
if (order == UCOL_IGNORABLE) {
continue;
}
if (cont) {
order |= UCOL_CONTINUATION_MARKER;
}
add(order, status);
}
ucol_closeElements(elems);
}
Target::Target(UCollator *theCollator, const UnicodeString *target, int32_t patternLength, UErrorCode &status)
: bufferSize(0), bufferMin(0), bufferMax(0),
strengthMask(0), strength(UCOL_PRIMARY), variableTop(0), toShift(FALSE), coll(theCollator),
nfd(*Normalizer2Factory::getNFDInstance(status)),
targetString(NULL), targetBuffer(NULL), targetLength(0), elements(NULL), charBreakIterator(NULL)
{
strength = ucol_getStrength(coll);
toShift = ucol_getAttribute(coll, UCOL_ALTERNATE_HANDLING, &status) == UCOL_SHIFTED;
variableTop = ucol_getVariableTop(coll, &status);
// find the largest expansion
uint8_t maxExpansion = 0;
for (const uint8_t *expansion = coll->expansionCESize; *expansion != 0; expansion += 1) {
if (*expansion > maxExpansion) {
maxExpansion = *expansion;
}
}
// room for an extra character on each end, plus 4 for safety
bufferSize = patternLength + (2 * maxExpansion) + 4;
ceb = NEW_ARRAY(CEI, bufferSize);
if (ceb == NULL) {
status = U_MEMORY_ALLOCATION_ERROR;
return;
}
if (target != NULL) {
setTargetString(target);
}
switch (strength)
{
default:
strengthMask |= UCOL_TERTIARYORDERMASK;
/* fall through */
case UCOL_SECONDARY:
strengthMask |= UCOL_SECONDARYORDERMASK;
/* fall through */
case UCOL_PRIMARY:
strengthMask |= UCOL_PRIMARYORDERMASK;
}
}
uint32_t RuleBasedCollator::getVariableTop(UErrorCode &status) const {
return ucol_getVariableTop(ucollator, &status);
}
