pjfanning commented on code in PR #582:
URL: https://github.com/apache/poi/pull/582#discussion_r1477123234
##########
poi/src/main/java/org/apache/poi/util/CodepointsUtil.java:
##########
@@ -26,13 +26,21 @@ public class CodepointsUtil {
/**
* @param text to iterate over
* @return iterator with Strings representing the codepoints
- * @see #primitiveIterator(String) a more performant iterator
*/
- public static Iterator<String> iteratorFor(String text) {
- return text.codePoints()
- .mapToObj(codePoint -> new
String(Character.toChars(codePoint)))
- .iterator();
- }
+ public static Iterator<String> iteratorFor(String text) {
+ PrimitiveIterator.OfInt iter = primitiveIterator(text);
+ return new Iterator<String>() {
+ @Override
+ public boolean hasNext() {
+ return iter.hasNext();
+ }
+
+ @Override
+ public String next() {
+ return Character.toString(iter.next());
Review Comment:
see
https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Character.html#toString(int)
only added in Java 11
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