New (page-per-artifact) standard library doc examples are now editable and runnable

[Seb via Digitalmars-d-announce]

On Saturday, 7 January 2017 at 20:14:56 UTC, Martin Nowak wrote:
> On 01/07/2017 05:12 PM, Andrei Alexandrescu wrote:
>> Following https://github.com/dlang/dlang.org/pull/1532, the 
>> new-style docs now also allow editing and running examples. 
>> Start at http://dlang.org/library-prerelease/ and go anywhere 
>> to check it out.
>> 
>> Thanks are due to Sönke Ludwig and Sebastian Wilzbach!
>
> Thanks, this is quite an amazing step towards more interactive
> documentation.
> Should we start to produce output as well, e.g. with some magic
> `writeln` that's silent in actual tests?

There's already some simple support for this in the ddoc pages, 
e.g. the pattern `assert(a == b);` is automatically rewritten to 
`writeln(a); // b`

https://dlang.org/phobos-prerelease/std_algorithm_searching.html#.minElement

However as ddox produces a different output, it doesn't work at 
the moment with the ddox build.
I made a PR:

https://github.com/dlang/dlang.org/pull/1551

Of course help to make this smarter is welcome ;-)