Chapter 1. An Introductory Example

When I start to write, I need to swiftly explain what it is I’m writing about; in this case, to explain what a domain-specific language (DSL) is. I like to do this by showing a concrete example and following up with a more abstract definition. So, here I’m going to start with an example to demonstrate the different forms a DSL can take. In the next chapter I’ll try to generalize the definition into something more widely applicable.

1.1 Gothic Security

I have vague but persistent childhood memories of watching cheesy adventure films on TV. Often, these films would be set in some old castle and feature secret compartments or passages. In order to find them, heroes would need to pull the candle holder at the ...

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