private boolean matchesFilter(String str) {
			switch (filterType) {
				case STARTS_WITH_FILTER:
					return str.toLowerCase().startsWith(filter);
				case ENDS_WITH_FILTER:
					return str.toLowerCase().endsWith(filter);
				case EQUALS_FILTER:
					return str.equalsIgnoreCase(filter);
				case CONTAINS_FILTER:
					return str.toLowerCase().indexOf(filter) >= 0;
			}
			return true;
		}
Select the highest priority language being displayed.
If more than one language has the highest priority, then the first
one will be used.
Ghidra/Features/Base/src/main/java/ghidra/app/util/bean/SelectLanguagePanel.java