/**
* Parse a text list of scripts into a BitSet.
*
* @param scriptsString the string to be parsed
* @return BitSet of UScript values.
* @internal
* @deprecated This API is ICU internal only.
*/
@Deprecated
public static BitSet parseScripts(String scriptsString) {
BitSet result = new BitSet();
for (String item : scriptsString.trim().split(",?\\s+")) {
if (item.length() != 0) {
result.set(UScript.getCodeFromName(item));
}
}
return result;
}
/**
* Produce a readable string of a set of scripts
*
* @param scripts a BitSet of UScript values
* @return a readable string of a set of scripts
* @internal
* @deprecated This API is ICU internal only.
*/
@Deprecated
public static String displayScripts(BitSet scripts) {
StringBuilder result = new StringBuilder();
for (int i = scripts.nextSetBit(0); i >= 0; i = scripts.nextSetBit(i + 1)) {
if (result.length() != 0) {
result.append(' ');
}
result.append(UScript.getShortName(i));
}
return result.toString();
}
/**
* Set an identifier to analyze. Afterwards, call methods like getScripts()
*
* @param identifier the identifier to analyze
* @return self
* @internal
* @deprecated This API is ICU internal only.
*/
@Deprecated
public IdentifierInfo setIdentifier(String identifier) {
this.identifier = identifier;
clear();
BitSet scriptsForCP = new BitSet();
int cp;
for (int i = 0; i < identifier.length(); i += Character.charCount(i)) {
cp = Character.codePointAt(identifier, i);
// Store a representative character for each kind of decimal digit
if (UCharacter.getType(cp) == UCharacterCategory.DECIMAL_DIGIT_NUMBER) {
// Just store the zero character as a representative for comparison. Unicode guarantees it
// is cp - value
numerics.add(cp - UCharacter.getNumericValue(cp));
}
UScript.getScriptExtensions(cp, scriptsForCP);
scriptsForCP.clear(UScript.COMMON);
scriptsForCP.clear(UScript.INHERITED);
// if (temp.cardinality() == 0) {
// // HACK for older version of ICU
// requiredScripts.set(UScript.getScript(cp));
// } else
switch (scriptsForCP.cardinality()) {
case 0:
break;
case 1:
// Single script, record it.
requiredScripts.or(scriptsForCP);
break;
default:
if (!requiredScripts.intersects(scriptsForCP) && scriptSetSet.add(scriptsForCP)) {
scriptsForCP = new BitSet();
}
break;
}
}
// Now make a final pass through to remove alternates that came before singles.
// [Kana], [Kana Hira] => [Kana]
// This is relatively infrequent, so doesn't have to be optimized.
// We also compute any commonalities among the alternates.
if (scriptSetSet.size() > 0) {
commonAmongAlternates.set(0, UScript.CODE_LIMIT);
for (Iterator<BitSet> it = scriptSetSet.iterator(); it.hasNext(); ) {
final BitSet next = it.next();
// [Kana], [Kana Hira] => [Kana]
if (requiredScripts.intersects(next)) {
it.remove();
} else {
// [[Arab Syrc Thaa]; [Arab Syrc]] => [[Arab Syrc]]
commonAmongAlternates.and(next); // get the intersection.
for (BitSet other : scriptSetSet) {
if (next != other && contains(next, other)) {
it.remove();
break;
}
}
}
}
}
if (scriptSetSet.size() == 0) {
commonAmongAlternates.clear();
}
return this;
}