Further Exploration
You leveled up on your metaprogramming skills by defining a language within a language using DSLs. This style of problem solving will let you create expressive libraries that can distill a problem into a natural set of macros. You saw how some domains, like HTML generation, fall naturally into a DSL, while others require careful consideration of tradeoffs. Think about other ways you can extend the HTML DSL to make it production ready. Here are some ideas to get you started:
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Extend the Html library with nicely formatted output:
| | iex> Template.render |
| | "<div id=\"main\"> |
| | <h1 class=\"title\">Welcome!</h1> |
| | </div> |
| | <div class=\"row\"> |
| | <div> |
| | <p>Hello!</p> |
| | </div> |
| | </div>" |
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Sanitize all text input against ...
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