From: Wladimir Mutel <mwg@...>
Date: 2002-03-26T19:46:37+09:00
Subject: Re: Difference between 'do' and 'begin'

� ������ <a7paio$1km4$2@qiao.localnet> Clemens Hintze �������(�):

>>	before), and noted two similarly looking keywords in it. Why there is
>>	a need to make two of them, not one, to start a block ?

> Although there *are* two 'keywords' to open a block, but those are
> 'do' and '{'. Both have different precedence, so that both following
> lines have different meaning:

	Yes, I know that 'do' and '{' are mostly synonims.

> 'begin' is a totally different construct, that is *not* building a
> block. It is more a statement like 'if' or 'while' ...

> 'begin' is most often used together with its 'rescue' and/or 'ensure'
> part to catch and handle exceptions that were raised by code within.

	So, in Ruby, begin/if/unless/while/until/for do not create a new scope
	lasting to the 'end' ? May be it is the main difference with rules of C.