From: Roger Pack <rogerpack2005@...>
Date: 2009-05-22T22:55:05+09:00
Subject: Re: Pythonic indentation (or: beating a dead horse)


> n = 2 * -[1,2,3,4,5].inject(0) do |a, b|:
>   c = a * 2
>   a * c + b
> result = 8 * -if n > 0:
>   -n += 10000
> else:
>   n + 500000
> puts result
> 
> Once again, worked perfectly on its first time through the
> preprocessor.

It would appear that "end's" actually help with readability in a few 
cases :)

I'm glad to see you have some code.  Now put it on github, make a gem of 
it, and advocate it :)

Here are a few other thoughts on it.  (Keeping things friendly and 
civil...)

1) maybe it could become more of a generic preprocessor? (i.e. you give 
it arbitrary rules, like "see this, change it to this")?

2) maybe it could be even smarter about its extrapolation, i.e. allow

4.times {|n|:
 puts n

[accomodate for braces--one fewer keystroke!]

or even

4.times |n|:
 puts n

[put in its own do's and end's if not there]

or who even needs :'s?

4.times |n|
 puts n

[whenever it sees an ending | without preceding do or {, count it as an 
indent based block]

That would be interesting, and much more whitespacey, though slightly 
less ruby-y .

To clarify Tony's point from above, you can't really do case statements 
using only indentation and :'s.  Other constructs would work though 
(except for the ambiguities mentioned earlier might prevent anythin but 
a preprocessor being able to, for ruby's case).

-=r
-- 
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