ords</em>.
    <em>case_insensitive</em> indicates whether or not to ignore case when matching
    words.
    This is a convenience function for simplifying a set of ordered choice word
    patterns.
    If <em>words</em> is a multi-line string, it may contain Lua line comments (<code>--</code>)
    that will ultimately be ignored.</p>

    <p>Parameters:</p>

    <ul>
    <li><code>words</code>: A string list of words separated by spaces.</li>
    <li><code>case_insensitive</code>: Optional boolean flag in