std.metastrings and Variadic CTFE funcs

[Daniel Keep]

Bill Baxter wrote:
> To Don, Walter, or anyone else who knows:
> How hard is it going to be to get variadic CTFE functions working?
> Or how hard would it be to get
> 
> std.metastrings.Format should be a major workhorse of CTFE string
> functions, but it can't be because it's all done using template args.
> And I'm assuming it's a template because variadic CTFE funcs don't work.

I just wrote my own.

http://github.com/DanielKeep/gb/blob/master/src/gb/ctfe/Format.d

Takes metastrings.Format out back and beats it black and blue before
putting a silly hat on its head and dropping a cream pie down the front
of its trousers.

> In general, it would be nice to have more std.string functions
> available (as CTFE-capable functions) in std.metastrings.  Like
> Replace and IndexOf.  I whipped up a quick version of those two based
> somewhat on std.strings' versions just now.

Again, I just add stuff as I need it.

http://github.com/DanielKeep/gb/blob/master/src/gb/ctfe/String.d

I remember Walter talking about how CTFE meant you wouldn't need
distinct runtime and compile-time libraries.

Oh, how I chuckle.

  -- Daniel