From: Trans <transfire@...>
Date: 2005-10-13T15:46:53+09:00
Subject: Re: Default argument values for blocks


Christophe Grandsire wrote:
> collection.each:(foo="bar"){puts foo}

Ha! How ironic, I thought of that last night too. But after playing
with I decided I did not like it. The colon has too much "seperation"
semantic, I think. And think of the Python converts ;) Indeed I have. I
was thinking that the colon might be a nice way to go without 'do':

  collection.each:
    puts "foo"
  end

With todays kind of block arguments:

  collection.each: |foo|
    puts foo
  end

But we're after outer arguments, so with Matz/Perl notation:

  collection.each->(foo):
    puts foo
  end

I've tried every punctuation combination I can think of. I think I like
that best. Though I might suggest a word form for those who do not:

  collection.each fn(foo):
    puts foo
  end

T.