bool t4p::FinderClass::FindNextRegularExpression(const UnicodeString& text, int32_t start) {
if (U_SUCCESS(PatternErrorCode) && Pattern != NULL) {
UnicodeString findText(text);
if (start > 0 && start < text.length()) {
findText.setTo(text, start);
} else if (start > 0) {
findText = UNICODE_STRING_SIMPLE("");
}
int32_t foundPos = 0,
length = 0,
endPos = 0;
UErrorCode error = U_ZERO_ERROR;
RegexMatcher* matcher = Pattern->matcher(findText, error);
if (U_SUCCESS(error) && matcher) {
if (matcher->find()) {
foundPos = matcher->start(error);
endPos = matcher->end(error);
if (U_SUCCESS(error) && U_SUCCESS(error)) {
IsFound = true;
length = endPos - foundPos; // end is the index after the match
// if search was started from the middle of a string,
// need to correct the found position
LastPosition = start > 0 ? foundPos + start : foundPos;
LastLength = length;
}
}
delete matcher;
}
}
return IsFound;
}
