public T LT(final int index) {
		return _lookahead.LT(index);
	}
Return the lookahead token with the given index. The index starts at
{@code 1}. The returned token might be {@code null}.

@param index lookahead index
@return the token at the given index
jenetics.ext/src/main/java/io/jenetics/ext/internal/parser/Parser.java