From: "S.Volkov" <svolkov@...>
Date: 2007-05-19T03:15:17+09:00
Subject: Re: Why not adopt "Python Style" indentation for Ruby?

"Yukihiro Matsumoto" <matz@ruby-lang.org> wrote in message 
news:1179498273.407463.1345.nullmailer@x31.netlab.jp...
> Hi,
>
> In message "Re: Why not adopt "Python Style" indentation for Ruby?"
>    on Fri, 18 May 2007 23:15:05 +0900, "S.Volkov" <svolkov@comcast.net> 
> writes:
>
..
>
> |suggestion: make 'end' optional if code block contains only one 
> statement;
>
> I'm not sure if we can define syntax for above suggestion.
>
>  while cond
>     puts a
>  puts b     # delimit by indentation or else??
You are right, not feasible - rejected :)

> or maybe
>
>  while cond: puts a  # should be in same line
Thus we introduce new semantic for newline!
Following construct becomes invalid (and confusing):
    while cond: puts a
        puts b
    end
=>my personal opinion - NO

imho: we need special terminator anyway, now it is 'end', could be another;
suggestion: introduce ';;' terminator for 'implicit blocks (not started with 
class/module/def/do/begin), ie:
#--
    while cond : puts a ; puts b ;;
    # but
    while cond do puts a ; puts b end
#-- until - same as while
#--
    if cond : p a ;;
#--
    if cond : p a else p b ;;
#-- unless - same as if
#--
    for var in expr : p var ;;
    # but
    for var in expr do p var end
#-- case - sorry my lunch time ended, has to return back to my office..

BRs
Sergey Volkov