Pure higher order functions

[Daniel Murphy]

"bearophile" <bearophileHUGS at lycos.com> wrote in message 
news:iva7iv$b6v$1 at digitalmars.com...
>> Still, it should make construction of immutable structures without 
>> casting a lot easier.
>
> I presume you mean something like this ("function" is currently required 
> if you want to add "pure" too):
>
Or use a nested function.  Either way, no casting or assumeUnique required.
function shouldn't be required once 
http://d.puremagic.com/issues/show_bug.cgi?id=3235 is fixed.

> 3827 automatic joining of adjacent strings is bad [partial patch present]
The patch for this seems solid, I might make a pull for it after the 
release.

> 5409 Disallow (!x & y)
This seems like it would require modifying the parser, which I'm not 
particularly good at yet.  Maybe later.