From: dblack@...
Date: 2006-07-24T03:45:45+09:00
Subject: Re: Yadda yadda yadda operator

Hi --

On Mon, 24 Jul 2006, Son SonOfLilit wrote:

> Hello.
>
> I was reading about perl6 on wikipedia for amusement today and I came upon
> the "yadda yadda yadda" operator:
>
> <quote>
>
> if is_true() {
>  for @array {
>      ...
>  }
> }
>
> The three dots above (...) are syntactically valid in Perl 6 and are called
> the "yadda-yadda operator". "..." can be used as a placeholder for code to
> be inserted later. If a running program attempts to *execute* "...",
> however, an exception <http://en.wikipedia.org/wiki/Exception_handling> is
> thrown. This operator is useful for abstract
> methods<http://en.wikipedia.org/wiki/Abstract_method>,
> or for marking places where the programmer intends to insert code later.
>
> </quote>
>
>
>
> This seemed so useful that I thought implementing it for Ruby and submitting
> a patch, but then caught myself and wrote:
>
> class Kernel
>
> def yadda
>
>   raise "Yadda operator reached"
>
> end
>
> end
>
>
>
> How elegant Ruby is.
>
>
>
> Does anyone else think that this is Standard Library material in the making?

No.  It's easy enough, and clearer, to do:

   # ...

or whatever you like.


David

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