Looking for an equivalent to C++ std::getline in D

[k-five via Digitalmars-d-learn]

On Sunday, 7 May 2017 at 09:46:22 UTC, Patrick Schluter wrote:
> On Saturday, 6 May 2017 at 10:15:03 UTC, k-five wrote:

> If you want to learn the basis of the range concept and their 
> link to C++ Iterators, you should definitively read Andrei's 
> article on them in the InformIT magazine. Here is the link
> http://www.informit.com/articles/printerfriendly/1407357
> required read for every aspiring D programmer ;-)

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Thanks for the article.

Although I found D for being more better, nicer,and fun than C++ 
is, but there is a few questions on Stack-Over-Flow, videos on 
Youtube, and  some other forums in my country. So, why D is not 
popular?

I am a big fan of Perl-one-liner and after seeing
rdmd --evel='one-line-code'
I gasped! Oh, really? a one-liner with D!

Or even Unix Command Line, that D has Uniform Function Call 
Syntax.
line.sort.uniq.writeln();

It may you know about the future of D or may introduce some other 
articles about the future of D to me. Since after learning C++ I 
am not very comfortable with.