PHP-style (embedded variables) print statements

[Don Clugston]

Unknown W. Brackets wrote:
> I hate it when people use this in PHP and Perl, it can be un-greppable 

This is a really important problem. I think it is relevant to almost any 
domain-specific language. (Find all references to variable xxx).
Inside an IDE, you could theoretically grep on the source the compiler sees 
after mixins are evaluated, but it's pretty nasty otherwise.

> and there's so much ambiguity when using arrays and similar.
> 
> Still, pretty cool to be able to do it in D.  Just shows D's strengths.
> 
> -[Unknown]
> 
> Don Clugston Wrote:
> 
>> With CTFE and text mixins, it is now reasonably straightforward to 
>> implement PHP-style 'dollar' embedded variables, in a type-safe manner.