al
    difference results in two types of embedded lexers: a parent lexer that
    embeds other child lexers in it (like HTML embedding CSS), and a child lexer
    that embeds itself into a parent lexer (like PHP embedding itself in HTML).</p>

    <p><a id="lexer.Parent.Lexer"></a></p>

    <h5>Parent Lexer</h5>

    <p>Before embedding a child lexer into a parent lexer, the parent lexer needs to
    load the child lexer. This is done with the <a href="#lexer.load"><code>lexer.load()</code></a> function. F