private static void addIntPropertyAliases(int property, String namePrefix, Map<String, String> propertyAliases) {
		String propertyName = getShortPropertyName(property);
		for (int propertyValue = UCharacter.getIntPropertyMinValue(property);
		     propertyValue <= UCharacter.getIntPropertyMaxValue(property);
		     propertyValue++) {
			String aliasTarget = propertyName + "=" + UCharacter.getPropertyValueName(property, propertyValue, UProperty.NameChoice.SHORT);
			int nameChoice = UProperty.NameChoice.SHORT;
			String alias;
			while (true) {
				try {
					alias = namePrefix + UCharacter.getPropertyValueName(property, propertyValue, nameChoice);
				} catch (IllegalArgumentException e) {
					// No more aliases.
					break;
				}
				assert alias != null;
				addPropertyAlias(propertyAliases, alias, aliasTarget);
				nameChoice++;
			}
		}
	}
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