private static void addIntPropertyRanges(int property, String namePrefix, Map<String, IntervalSet> propertyCodePointRanges) {
		for (int propertyValue = UCharacter.getIntPropertyMinValue(property);
		     propertyValue <= UCharacter.getIntPropertyMaxValue(property);
		     propertyValue++) {
			UnicodeSet set = new UnicodeSet();
			set.applyIntPropertyValue(property, propertyValue);
			String propertyName = namePrefix + UCharacter.getPropertyValueName(property, propertyValue, UProperty.NameChoice.SHORT);
			IntervalSet intervalSet = propertyCodePointRanges.get(propertyName);
			if (intervalSet == null) {
				intervalSet = new IntervalSet();
				propertyCodePointRanges.put(propertyName, intervalSet);
			}
			addUnicodeSetToIntervalSet(set, intervalSet);
		}
	}
StringTemplate controller used to generate parameters to feed
to {@code unicodedata.st} to code-generate {@code UnicodeData.java},
used by the tool for Unicode property escapes like {@code \\p\{Lu\}}.

Uses ICU to iterate over Unicode character categories, properties,
and script codes, as well as aliases for those codes.

This class exists in its own Maven module to avoid adding a
dependency from the tool onto the (large) ICU runtime.
tool/src/org/antlr/v4/unicode/UnicodeDataTemplateController.java