while expression feature proposal

[Thomas Rachel]

Am 25.10.2012 16:15 schrieb Grant Edwards:

> I guess that depends on what sort of programs you write.  In my
> experience, EXPR is usually a read from a file/socket/pipe that
> returns '' on EOF. If VAR is not '', then you process, then you
> process it inside the loop.

Right. The same as in

if regex.search(string) as match:
     process it

But with

def if_true(expr):
     if expr: yield expr

you can do

for match in if_true(regex.search(string)):
     process it

But the proposed if ... as ...: statment woulkd be more beautiful by far.

Thomas