Re: Simplifying a string mixin

[bauss via Digitalmars-d-learn]

On Monday, 25 February 2019 at 21:04:48 UTC, Adam D. Ruppe wrote:

On Monday, 25 February 2019 at 20:57:37 UTC, Victor Porton wrote:

Can string mixing be split into several parts?

I have a mixin like this:

    mixin("struct " ~ name ~ " {\n" ~
          "  struct Regular {\n" ~
          "    // ..." ~
          "  }\n" ~
          "  struct WithDefaults {\n" ~
          "    // ..." ~
          "  }\n" ~
          '}');

I'd probably write that as:

mixin(q{
  struct } ~ name ~ q{ {
    struct Regular {
       // stuff
    }
    struct With Defaults {
       // ...
    }
  }
});

Also, what is the most proper thing to check that `name` is a proper identified (not say !@#)?

just let the compiler do it imo.

Or you could do:

mixin(format(q{
  struct %s {
    struct Regular {
       // stuff
    }
    struct With Defaults {
       // ...
    }
  }
}, name));

That way it's way more readable.