DIP 50 - AST macros

[Wyatt]

On Tuesday, 12 November 2013 at 09:20:07 UTC, Walter Bright wrote:
>
> 5. We've said "no" in the past to things like user-defined 
> tokens, which are closely related.
>
Regarding this point, I get that arbitrary expansion is out, but 
would you be amenable to adding a small, _strictly-defined_ set 
of operators that are compile-time errors unless overloaded?

>     #define BEGIN {
>     #define END }
>
> macros used in old C code to make it look like Pascal.

A plague o' their houses!

-Wyatt