From: Logan Capaldo <logancapaldo@...>
Date: 2007-04-20T23:39:08+09:00
Subject: Re: highlighter for operator precedence

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On 4/19/07, Mike Schwab <mike.schwab@gmail.com> wrote:
>
> Is there a web site that will highlight code to show who Ruby will send
> each message to?  I like playing around with parentheses and the ternary
> operator, and I want to explore the precedence distinction between {}
> and do end.
>
> Some find it unnecessary to remove all implied parentheses and still
> strive for one-liners, but I find it makes the code more readible, and
> more emulatable.  I think a visual tool for learning these rules could
> make Ruby more accessible.
>
> Once that were ready, would it not be a small step to make a tool that
> strips the unnecessary parens itself?


If an expression is so complicated you need a tool to strip "unnecessary"
parens from it, what makes you think you won't need a tool to put the parens
back in when you go to read it again and figure out what it does? A tool to
find and exploit the dark corners of ruby's precedence rules to avoid
parentheses seems to be missing the forest for the trees. If you have a
complicated expression with a lot of parens, maybe its time to name some of
those sub-expressions, not automate its obfuscation.

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>
>

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