From: Caleb Clausen <vikkous@...>
Date: 2010-05-28T22:37:37+09:00
Subject: Re: Ruby Core - Lambda function

On 5/27/10, Paul A. <cyril.staff@gmail.com> wrote:
> Hi,
>
> Just a thin post in order to purpose this:
>
> I think it could be cool to call lambda function just like: ë
>
> Such as:
>
> a = 0
> my_while  ë { a < 5 }  do
>    puts a
>    a += 1
> end

Honestly, why is this better than:

  a=0
  while a<5 do
    puts a
    a+=1
  end

This way is so much less noisy and more succinct. You could even leave
off the do.

lambdas should not be used to replace arbitrary expressions. Only
where you need them.

> I think ë is more human then ->

Idunno. It's just some (fairly arbitrary) greek letter. I find the
arrow a little more evocative myself.

Putting Robert's doubts about encoding issues aside, you can already
do this in both 1.8 and 1.9:

#encoding: utf-8
alias ë lambda
x=ë{ p :foo }
x.call #=> :foo

In 1.8, you do have to pass -Ku on the command line, tho.

I am with Piyush on the question of how you type these things, tho. My
keyboard only has ascii on it. I'm putting off adopting unicode until
a unicode keyboard is available.