 hand, <a href="http://lua.org">Lua</a> makes it easy to to rapidly create new lexers, extend existing
    ones, and embed lexers within one another. Lua lexers tend to be more
    readable than C++ lexers too.</p>

    <p>Lexers are Parsing Expression Grammars, or PEGs, composed with the Lua
    <a href="http://www.inf.puc-rio.br/~roberto/lpeg/lpeg.html">LPeg library</a>. The following table comes from the LPeg documentation and
    summarizes all you need to know about constructing basic LPeg patterns. Th