iterate over a directory, dealing with permission errors

[Meta via Digitalmars-d]

On Friday, 18 September 2015 at 12:42:26 UTC, John Colvin wrote:
>> well, creating a DirEntry is not a range operation. handle 
>> can't help you there.
>
> Yup :(

I think you could use std.exception.ifThrown in this case.

foreach(file; dirEntries(args[1], SpanMode.depth)
                   .ifThrown(DirEntry.init)
                   .handle!(Exception, RangePrimitive.popFront, 
(e, r) =>  DirEntry()))
{
      writeln(file.name);
}

Although I'm not exactly sure what to return for the "error" 
value... I'm not sure if DirEntry.init will work or not; you'll 
probably have to mess around with it.