version: multiple conditions

[via Digitalmars-d]

On Wednesday, 17 June 2015 at 05:09:54 UTC, Jonathan M Davis 
wrote:
> On Tuesday, 16 June 2015 at 20:57:03 UTC, Walter Bright wrote:
>> Use of expression templates in C++ to implement DSLs is 
>> probably some of the most awful code ever conceived.

A lot of things in C++ are ill-conceived, but templates were not 
designed to do things like that. So the language does not endorse 
it.

Mal-features like string-mixins and multiple-alias-this endorse 
writing ugly code. Those are deliberate features. And it is 
actually worse than Javascript...

> Whereas string mixins allow us to do all kinds of crazy stuff 
> with DSLs if you want to - but they're clearly confined in 
> strings where you're not going to mistake them for normal D 
> code. It's _very_ cool how Pegged is able to take a grammar in 
> normal, PEG format, and generate a parser from it. But 
> attempting anything like that with expression templates would 
> have been horrible.

I've noticed that a key difference between D and Javascript 
programmers is that the latter group through-and-through 
acknowledge that eval() is a problematic feature.