What's the idiomatic way of getting everything *before* the results of a call to find?

assert("hello world".find(" world").what_goes_here??? == "hello");

In an article Andrei wrote a few years ago (http://www.informit.com/articles/article.aspx…) he mentioned a function like this with the name "until", but I can't find it or its replacement in Phobos.

Not that it's super important, but the link didn't copy well, so here's that: http://www.informit.com/articles/article.aspx?p=1407357&seqNum=12

On 02/27/2015 02:29 PM, Mark Isaacson wrote:
> What's the idiomatic way of getting everything *before* the results of a
> call to find?
>
> assert("hello world".find(" world").what_goes_here??? == "hello");
>
> In an article Andrei wrote a few years ago
> (http://www.informit.com/articles/article.aspx…) he mentioned a function
> like this with the name "until", but I can't find it or its replacement
> in Phobos.

findSplit and friends in std.algorithm:

import std.algorithm;

void main()
{
    assert("hello world".findSplit(" world")[0] == "hello");
}

Ali

Ahhh right - forgot about that. Thanks!

On Friday, February 27, 2015 14:42:17 Ali Çehreli via Digitalmars-d-learn wrote:
> On 02/27/2015 02:29 PM, Mark Isaacson wrote:
> > What's the idiomatic way of getting everything *before* the results of a call to find?
> >
> > assert("hello world".find(" world").what_goes_here??? == "hello");
> >
> > In an article Andrei wrote a few years ago (http://www.informit.com/articles/article.aspx…) he mentioned a function like this with the name "until", but I can't find it or its replacement in Phobos.
>
> findSplit and friends in std.algorithm:
>
> import std.algorithm;
>
> void main()
> {
>      assert("hello world".findSplit(" world")[0] == "hello");
> }

There's also std.algorithm.until if all you want is what's before, whereas findSplit gives you both what's before and after.

- Jonathan M Davis