+// Copyright (C) 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
* Copyright (C) 2014, International Business Machines
return -1;
}
+UBool ScriptSet::isEmpty() const {
+ for (uint32_t i=0; i<UPRV_LENGTHOF(bits); i++) {
+ if (bits[i] != 0) {
+ return FALSE;
+ }
+ }
+ return TRUE;
+}
+
UnicodeString &ScriptSet::displayScripts(UnicodeString &dest) const {
UBool firstTime = TRUE;
for (int32_t i = nextSetBit(0); i >= 0; i = nextSetBit(i + 1)) {
return *this;
}
+void ScriptSet::setScriptExtensions(UChar32 codePoint, UErrorCode& status) {
+ if (U_FAILURE(status)) { return; }
+ static const int32_t FIRST_GUESS_SCRIPT_CAPACITY = 5;
+ MaybeStackArray<UScriptCode,FIRST_GUESS_SCRIPT_CAPACITY> scripts;
+ UErrorCode internalStatus = U_ZERO_ERROR;
+ int32_t script_count = -1;
+
+ while (TRUE) {
+ script_count = uscript_getScriptExtensions(
+ codePoint, scripts.getAlias(), FIRST_GUESS_SCRIPT_CAPACITY, &internalStatus);
+ if (internalStatus == U_BUFFER_OVERFLOW_ERROR) {
+ // Need to allocate more space
+ if (scripts.resize(script_count) == NULL) {
+ status = U_MEMORY_ALLOCATION_ERROR;
+ return;
+ }
+ internalStatus = U_ZERO_ERROR;
+ } else {
+ break;
+ }
+ }
+
+ // Check if we failed for some reason other than buffer overflow
+ if (U_FAILURE(internalStatus)) {
+ status = internalStatus;
+ return;
+ }
+
+ // Load the scripts into the ScriptSet and return
+ for (int32_t i = 0; i < script_count; i++) {
+ this->set(scripts[i], status);
+ if (U_FAILURE(status)) { return; }
+ }
+}
+
U_NAMESPACE_END
U_CAPI UBool U_EXPORT2