Comment by kragen

6 years ago

This is beautiful. I never thought of chaining the parenthesis-free syntax or using table arguments for a sequence like that.

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kragen

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pb82  6 years ago

You can accomplish something similar in C++: single argument constructors let you skip the parentheses but that single argument can be an initializer_list, for example 'Tag(std::initializer_list<Tag> children)'. Now create subclasses of Tag for actual tags and you end up with a DSL that looks just like the one in the article. There is of course a bit more to it, but it can be done.

  • kragen  6 years ago

    Skip the parentheses? Do you mean like

        H1 x = "Topics";

    Or is this an aspect of C++ I don't know about?

    • pb82  6 years ago

      Yes exactly. And now if the constructor of your element, let's say a div, doesn't take a string but a std::initializer_list you can write it like this:

        auto doc = Div {
    H1("Topics")
  };

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