Re: countUntil with negated pre-defined predicate?

[Steven Schveighoffer via Digitalmars-d-learn]

On 5/2/20 2:23 PM, Robert M. Münch wrote:

This works:

     countUntil!(std.uni.isWhite)("hello world"))

How can I switch this to (not working);

     countUntil!(!std.uni.isWhite)("hello world"))

without having to write my own predicate?

Or is there an even better way to search for all "drawable unicode characters"?

Write your own predicate, it's not much different:

countUntil!(c => !std.uni.isWhite(c))("hello world")

-Steve