From: Charles Mills <cmills@...>
Date: 2004-08-06T02:17:40+09:00
Subject: Re: Macros in Ruby


On Aug 5, 2004, at 9:50 AM, Michael Neumann wrote:

> Ara.T.Howard wrote:
>> On Fri, 6 Aug 2004, Gavin Sinclair wrote:
>>> On Friday, August 6, 2004, 12:11:27 AM, Ara.T.Howard wrote:
>>>
>>>> perhaps a shorthand:
>>>
>>>
>>>>    lambda{ puts 'lambda' } => Proc:0xb74041a0
>>>>    &{ puts 'lambda too' }  => Proc:0xb74041a1
>>>
>>>
>>>> i'm probably missing something, but i don't think the syntax '&{' 
>>>> occurs
>>>> anywhere now and '&' is already synomynous with blocks/procs/etc.
>>>
>>>
>>>
>>> If you must have a shortcut, I think 'L' makes more sense.
>>>
>>>  L { puts 'lambda' }    => Proc:0xb74041a0
>> but 'L' is a valid identifier:
>>   ~ > cat a.rb
>>   L = 42
>>   L { puts 42 }
>>   ~ > ruby a.rb
>>   a.rb:2: undefined method `L' for main:Object (NoMethodError)
>>           from a.rb:2
>> problematic.

# if you want to save key strokes you could:
module Kernel
	alias l lambda
end
#or
module Kernel
	alias fun lambda
end

> how about "fn" or "fun"? Only one character longer than "&" and IMO 
> easier to read (especial for ML programmers ;-)
>
> Regards,
>
>   Michael
>