On Fri, Mar 1, 2013 at 3:16 PM, Levente Uzonyi <leves at elte.hu> wrote:
> On Fri, 1 Mar 2013, Yoshiki Ohshima wrote:
>
>> I believe I have seen Dan Ingalls posted about the syntax here
>> before...  The essence of the message was that a block is still like a
>> method, and they kind of have keyword message pattern, except that the
>> keyword part is null (0-length) string.  In this regard, allowing
>> spaces after a colon follows the principle.
>
>
> That's pretty cool and exactly what I always thought about it, but I still
> couldn't find a good reason for the | at the end of the block signature.
> Without it blocks could be parsed just like methods, (probably) making the
> parser simpler:
>
> array collect: [ :each
>         each * each ]

But a pair of vertical bars may follow the last argument name, so the
parser would have to check it, no?

-- 
-- Yoshiki