Define delimiter, as per a complaint in the comments

        </highlight>

    </example>

    <p>The character which is used to separate (or "delimit") the

    various parts of the substituion string is referred to as the

    "delimiter", and it is most common to use a slash for this

    purpose.</p>

    <p>If either the pattern or the substitution contain a slash

    character then an alternative delimiter should be used:</p>

    character then an alternative delimiter may be used to make the

    directive more readable:</p>

    <example><title>Example of using an alternate delimiter</title>

    <highlight language="config">