From: Robert Klemme <shortcutter@...>
Date: 2011-01-11T17:16:00+09:00
Subject: Re: Nooby question : multidimensional arrays.

On Mon, Jan 10, 2011 at 9:15 PM, Larry Evans <cppljevans@suddenlink.net> wrote:
> On 01/10/11 08:33, Robert Klemme wrote:
> [snip]
>> If you need that you could do something like https://gist.github.com/772827
>>
> [snip]
> Are you using a ruby newer than 1.8.7. I'm getting an error as shown here:
>
> ~/prog_dev/ruby/gist772827-61376303a967918b698bc0ddb50af26d6368438c $
> ruby mda.rb
> mda.rb:20: syntax error, unexpected tIDENTIFIER, expecting tAMPER or '&'
>  def []=(*idx, val)
>                   ^
> mda.rb:41: syntax error, unexpected kEND, expecting $end
> ~/prog_dev/ruby/gist772827-61376303a967918b698bc0ddb50af26d6368438c $
> ruby -v
> ruby 1.8.7 (2010-01-10 patchlevel 249) [x86_64-linux]

Yes, you need 1.9ish Ruby for this to work.  Reason is that 1.9 has
extended pattern matching.  With 1.8 you need to do it yourself:

09:14:49 ~$ irb
Ruby version 1.8.7
irb(main):001:0> class X
irb(main):002:1> def []=(*a)
irb(main):003:2> v = a.pop
irb(main):004:2> p a, v
irb(main):005:2> end
irb(main):006:1> end
=> nil
irb(main):007:0> X.new[1,2,3]=4
[1, 2, 3]
4
=> 4
irb(main):008:0>

Sorry for not mentioning it.

Kind regards

robert


-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/