From: "Hal E. Fulton" <hal9000@...>
Date: 2003-03-22T07:19:32+09:00
Subject: Re: Expression results

----- Original Message ----- 
From: "Rasmus" <debitsch@t-online.de>
Newsgroups: comp.lang.ruby
To: "ruby-talk ML" <ruby-talk@ruby-lang.org>
Sent: Friday, March 21, 2003 4:05 PM
Subject: Expression results


Ruby termninates a statement when an
expression is complete OR end of line OR
semicolon. (Semicolons are normally 
optional.)

> The expressions
> 
> e1 = 1 + 2;

3

> e2 = 1 +
> 2;

3

> e3 = 1

1

> + 2;

2 (thrown away)

> e4 = (1 + 2);

3

> e5 = (1 +
> 2);

3

> e6 = (1
> + 2);

3

> give different results, depending on the formatting. What's the
> explanation for this?

Did I get these right? Does it make more sense 
now? Since Ruby is expression-oriented, "+ 2"
is a valid standalone expression.

HTH,
Hal