On 2011-10-04 03:13, Nick Sabalausky wrote:
"bearophile"<bearophileh...@lycos.com> wrote in message
news:j6dgvp$1rot$1...@digitalmars.com...
Predicates are quite common. In D I presume the standard way to write them
is with a name like "isFoo". In other languages they are written in other
ways:
if (foo.isEven) {}
if (foo.isEven()) {}
filter!isEven(data)
if (foo.evenQ) {}
if (foo.evenQ()) {}
filter!evenQ(data)
if (foo.even?) {}
if (foo.even?()) {}
filter!even?(data)
Other usages:
contains?
areInside ==> inside?
It's nice, and it's one of the things in Ruby that I like, but I'd be
surprised if it didn't cause parsing (or even lexing) ambiguities with ?:.
If that could be reasonably solved, I'd be in favor of it, but I'm not sure
it can.
If would choose to require a space before the question mark in a ternary
operator.
--
/Jacob Carlborg
