From: Dirk Detering <detering@...>
Date: 2002-06-13T20:20:11+09:00
Subject: Re: procs and blocks

Hello, I'm new to ruby, coming from Python (et al).

Therefore my question:

Jean-Hugues ROBERT schrieb:
> The main drawback is that optional parameters become mandatory when
> one want to use Proc object instead of block:
> def err( msg = "Err", b = nil, &sb )
>    b = sb if sb
>    b( msg)
> end
> a = Proc.new do |x| print x end
> err do |x| print x end
> err "Hello" do |x| print x end
> err "Hello", a
> err( , a) # Not in Ruby syntax...

This seems to indicate me that 'named parameters'
are missing, which are possible in Python
(and do attract me)?

With that the last line would read:
err (b=a)  

Ok, in Ruby there should be an alternative syntax,
as this one causes another result (and is supposed to).

Bye
Det