Re: Another example for syntactically lightweight closures

[Jean-Claude Wippler <jcw@...>]

>    unwind_protect( io.close, f )( function()
>        print( f:read( "*a" ) )
>    end )
>
> With syntactic sugar for closure arguments, we get:
>
>    unwind_protect( io.close, f ) do
>        print( f:read( "*a" ) )
>    end

This does not allow arguments, which could be useful for iterated  
callbacks as in Ruby:
	5.times { |i| ... }
The idea being that it lets the called function "drive" the one passed  
in.

Assuming the closing parenthesis is the main issue, would it be an  
idea to look for an alternate notation?  Here's a strange one:

	unwind_protect( io.close, f ) # function()
	  print( f:read( "*a" ) )
	end

Taking this further:

	function myif (c,a,b) if c then a() else b() end end

	myif (condition) # function ()
		print "yes"
	end # function ()
		print "no"
	end

Yuck. Just to show what such Smalltalk-like "code bocks" can lead to.

-jcw