How to make rsplit (like in Python) in D

[pineapple via Digitalmars-d-learn]

On Saturday, 1 October 2016 at 17:55:08 UTC, Uranuz wrote:
> On Saturday, 1 October 2016 at 17:32:59 UTC, Uranuz wrote:
>> On Saturday, 1 October 2016 at 17:23:16 UTC, Uranuz wrote:
>>> [...]
>>
>> But these example fails. Oops. Looks like a bug(
>>
>> import std.stdio;
>> import std.algorithm;
>> import std.range;
>> import std.string;
>>
>> [...]
>
> I created bug report on this:
> https://issues.dlang.org/show_bug.cgi?id=16569

This isn't a bug. It's illegal to access the front or back of an 
empty range. (If anything is a bug, it's the nondescriptiveness 
of the error.) You should write this instead:

void main()
{
     string str = "";
     auto split = str.splitter('.');
     if(!split.empty) writeln(split.back);
}